Annular superheating element for firetube boilers

An annular superheater element (10) for superheating steam within firetubes (22) of firetube boilers comprising concentric inner and outer tubes and a specially designed return end cap (16). Saturated steam introduced into the outer tube (14) of said superheater element is superheated while traveling towards the burner end of the tube, is directed into the inner tube (18) by means of the return end cap (16), and travels away from the burner side of the element (10) where it is exhausted for use as superheated steam. While traversing the inner tube, the superheated steam gives off heat energy through the wall of the inner tube to the steam traveling in the outer tube towards the burner end of the tube, conserving energy. The improved superheater element produces superheated steam more efficiently, with less fuel, and steam capable of doing more work, than conventional superheater elements and can be used to retrofit existing firetube type boilers.

Gas-stream efficient cogeneration process and system based on biomass gasification and methanation

Device and method for boiler superheat temperaturecontrol

Gas-stream efficient cogeneration process and system based on biomass gasification and methanation

Gas-stream efficient cogeneration process and system based on biomass gasification and methanation

Device and method for boiler superheat temperaturecontrol

DAMPFERZEUGER MIT EINEM BRENNRAUM, ZUMINDEST EINEM RAUCHGASKANAL UND EINER KESSELBAUGRUPPE

The invention relates to a steam generator, comprising a combustion chamber (1), a flue gas duct (10), and a boiler assembly (2). The boiler assembly (2) has a plurality of individual, identically designed steam boilers (3) for obtaining an appropriate amount of steam. The steam boilers have riser pipes (4) that are guided through the combustion chamber (1). The steam boilers (3) can optionally have a respective pipe array, which comprises at least the riser pipe (4), a steam discharge pipe (5), a down pipe (6), and a connecting pipe (7) that leads from the down pipe (6) to the riser pipe (4).

DAMPFERZEUGER MIT EINEM BRENNRAUM, ZUMINDEST EINEM RAUCHGASKANAL UND EINER KESSELBAUGRUPPE

The invention relates to a steam generator, comprising a combustion chamber (1), a flue gas duct (10), and a boiler assembly (2). The boiler assembly (2) has a plurality of individual, identically designed steam boilers (3) for obtaining an appropriate amount of steam. The steam boilers have riser pipes (4) that are guided through the combustion chamber (1). The steam boilers (3) can optionally have a respective pipe array, which comprises at least the riser pipe (4), a steam discharge pipe (5), a down pipe (6), and a connecting pipe (7) that leads from the down pipe (6) to the riser pipe (4).

DEVICE AND METHOD FOR BOILER SUPERHEAT TEMPERATURE CONTROL

Anzeige- und Sicherungsvorrichtung für Betriebe mit einem durch Feuergase beheizten Hochdruckrohrnetz.

DEVICE AND THE METHOD OF THE TEMPERATURE CONTROL OF OVERHEATING THE BOILER

Improvements with the circulation of gases in the exchangers of heat

INCINERATION BOILER SYSTEM CAPABLE OF IMPROVING COMBUSTION GAS FLOW RATE

According to the present invention, an incineration boiler system capable of improving a combustion gas flow rate comprises: a first combustion chamber; a second combustion chamber interconnected to the first combustion chamber; a third combustion chamber interconnected to the second combustion chamber; a boiler interconnected to the third combustion chamber, and composed of a body, an upper drum, a lower drum, and a superheater; and a combustion gas flow rate improving unit installed in a portion in which the third combustion chamber is interconnected to the boiler, and composed of a path extension unit and a dust removing unit. COPYRIGHT KIPO 2017 ...

[...] heating, sterilization and drying, using superheated steam generator

Heat exchanger having a counterflow evaporator

An evaporator including a lower drum, an upper drum, and at least one tube extending between the lower drum and the upper drum. The plurality of tubes have fluid passageways therein extending from the lower drum to the upper drum. A duct is provided having a heating gas passageway provided therein. The at least one tube extends through the heating gas passageway. The fluid passageways define an overall flow path from the lower drum to the upper drum extending in a direction substantially counter-current to an overall flow path defined by the heating gas passageway extending from a gas inlet of the heating gas passageway to a gas outlet thereof.

РЕАКТОРНАЯ УСТАНОВКА С ПСЕВДООЖИЖЕННЫМ СЛОЕМ

FIELD: power engineering. SUBSTANCE: reactor plant with a fluidised bed, in which the reactor with the fluidised bed comprises at least a bottom part, a cover part and at least one side wall, vertically stretching between the lower part and the cover, besides, the specified side wall is made as inclined at the bottom part so that the cross section of the reactor chamber of the reactor reduces to the lower part, and besides this reactor plant with the fluidised bed comprises a heat exchange chamber, in which the specified side wall creates a separating wall between the heat exchange chamber and the reactor chamber. The rear wall of the heat exchange chamber is connected to the side wall of the reactor chamber from the upper part of the rear wall near the area of connection so that its direction matches with the direction of the side wall near the connection. EFFECT: invention makes it possible to improve connection of a heat exchange chamber with a reactor with a fluidised bed due to creation of a strong and simple structure. 12 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 507 445 (13) C1 (51) МПК F23C 10/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2012140950/06, 18.02.2011 (24) Дата начала отсчета срока действия патента: 18.02.2011 (73) Патентообладатель(и): ФОСТЕР ВИЛЕР ЭНЕРГИЯ ОЙ (FI) R U Приоритет(ы): (30) Конвенционный приоритет: 26.02.2010 FI 20105190 (72) Автор(ы): ЛАНКИНЕН Пентти (FI) (45) Опубликовано: 20.02.2014 Бюл. № 5 2 5 0 7 4 4 5 (56) Список документов, цитированных в отчете о поиске: WO 9422571 А1, 13.10.1994. US 5540894 А, 30.07.1996. US 2005166457 А1, 04.08.2005. FI 954374 А, 01.12.1995. RU 2119119 C1, 20.09.1998. RU 2140823 С1, 10.11.1999. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.09.2012 2 5 0 7 4 4 5 R U (87) Публикация заявки РСТ: WO 2011/104434 (01.09.2011) C 1 C 1 (86) Заявка PCT: FI 2011/050150 (18.02.2011) Адрес для переписки: 129090, Москва, ...

ВЫСОКОТЕМПЕРАТУРНАЯ ПАРОСИЛОВАЯ УСТАНОВКА ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ И ВЫСОКОТЕМПЕРАТУРНЫЙ ПРЯМОТОЧНЫЙ КОТЕЛ ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ, РАБОТАЮЩИЙ ПРИ ПЕРЕМЕННОМ ДАВЛЕНИИ

1. Высокотемпературная паросиловая установка докритического давления, содержащая:- систему топочного котла,- генераторную систему паровой турбины, и- систему конденсата и питательной воды,причем система топочного котла включает в себя высокотемпературный пароперегреватель для подачи перегретого пара с параметрами пара докритического давления и температурой 593°С или выше, и высокотемпературный промежуточный пароперегреватель для подачи промежуточно перегретого пара с температурой 593°С или выше, ипричем генераторная система паровой турбины включает в себя высокотемпературную паровую турбину, приводимую в движение перегретым паром с параметрами пара докритического давления и температурой 593°С или выше, и паровую турбину среднего давления с промежуточным перегревом пара, приводимую в движение промежуточно перегретым паром с температурой 593°С или выше.2. Высокотемпературная паросиловая установка докритического давления по п.1, причем система топочного котла является работающим на порошкообразном угле топочным котлом, который использует уголь в качестве основного топлива, а также работающим при переменном давлении прямоточным котлом, который использует экран топки котла прямоточного спирального типа.3. Высокотемпературная паросиловая установка докритического давления по п.2, в которой номинальная мощность высокотемпературной паросиловой установки докритического давления находится в диапазоне от 0,1 миллиона кВт до 0,4 миллиона кВт.4. Высокотемпературная паросиловая установка докритического давления по п.3, в которой система топочного котла сжигает в качестве топлива биомассу или побочный газ проце РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F22B 35/14 (11) (13) 2013 140 948 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013140948/06, 05.09.2013 (71) Заявитель(и): ХИТАЧИ, ЛТД. (JP), БЭБКОК-ХИТАЧИ К.К. (JP) Приоритет(ы): (30) Конвенционный приоритет: 25.10.2012 JP 2012-235471 Адрес для переписки: 105082, Москва, ...

Einrichtung zur Erzeugung eines gasförmigen Fluids in Form von Dampf und Einrichtung zur Erzeugung elektrischer Energie, sowie Verfahren zur Erzeugung eines gasförmigen Fluids in Form von Dampf und Verfahren zur Erzeugung von elektrischer Energie

Die Erfindung betrifft eine Einrichtung zur Erzeugung eines gasförmigen Fluids in Form von Dampf sowie eine Einrichtung zur Erzeugung elektrischer Energie. Darüber hinaus betrifft die Erfindung ein Verfahren zur Erzeugung eines gasförmigen Fluids sowie ein Verfahren zur Erzeugung von elektrischer Energie.Die Einrichtung zur Erzeugung eines gasförmigen Fluids in Form von Dampf (1) unter Umsetzung thermischer Energie umfasst eine Verbrennungsanlage (20) zur Freisetzung thermischer Energie sowie eine Wärmeübertragungseinrichtung (30) zur zumindest teilweisen Umwandlung eines flüssigen Fluids (40) in ein gasförmiges Fluid (41) durch Übertragung freigesetzter Energie auf das flüssige Fluid (40), wobei die Einrichtung zur Erzeugung eines gasförmigen Fluids einen wärmeisolierten Raum (10) umfasst und die Wärmeübertragungseinrichtung (30) mindestens teilweise innerhalb des wärmeisolierten Raums (10) angeordnet ist.

Steam generator with coiled superheaters

A steam generation module has a superheater unit (201, Fig 14a) with pipework 205 which are helical coils 207 to accommodate longitudinal and lateral expansion. The coil is symmetrical, with inlet 208 and outlet 209 on the coil longitudinal axis, and sleeved slip couplings (210, fig 14f) to protect against friction with support plates (211a,b, fig 14a). The superheater has a pressure release valve.

Indicating and locking device for enterprises with one by Feuergase heated pipeline.

Apparatus for generating reheat steam

The present invention relates to an apparatus for generating and supplying steam or mist in the form of reheat steam, and provides the apparatus for generating reheat steam comprising: a combustion chamber provided with a space portion having a specific volume and a burner which is installed at the center of the upper end of the inside of the combustion chamber; a steam chamber, which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, for heating for the first time using heat transferred from the combustion chamber, steam or dissipated mist at a specific temperature that is supplied from the outside; a plurality of steam-heating pipes, which are wound in the form of a coil inside the combustion chamber, for heating for the second time by means of flames generated from the burner, the steam or the mist supplied after being heated for the first time in the steam chamber, into reheat steam at a specific temperature; an exhaust ...

ONCE-THROUGH STEAM GENERATOR

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section.

УСТРОЙСТВО И СПОСОБ РЕГУЛИРОВАНИЯ ТЕМПЕРАТУРЫ ПЕРЕГРЕВА КОТЛА

Котел (10), сконструированный или модифицированный таким образом, чтобы он производил меньше парниковых газов благодаря использованию, по существу, чисто кислородной атмосферы для сжигания топлива. Котел имеет основную горелку (14) и водяные трубы (13а). Котел далее содержит по меньшей мере одну вторичную горелку (24), размещенную в зоне (26) выше зоны (15) основных горелок и ниже паровыпускного отверстия котла. Вторичная горелка обеспечивает тепло или энергию для повышения температуры пара и его массового содержания. Вторичная горелка обеспечивает то тепло или энергию, которая теряется в результате уменьшенной интенсивности проходящих через котел отработавших газов, как следствие использования кислорода вместо сжатого воздуха.

Superheated steam boiler and method for operation thereof

STEAM GENERATION

A steam generator for generating a superheated fluid from a working fluid using a stream of heated gas, the steam generator comprising: a housing, which defines a gas flow path having an inlet at one, upstream end thereof into which a stream of heated gas is delivered and an outlet at the other, downstream end thereof; and a steam generation module which is disposed within the gas flow path of the housing, the steam generation module comprising a heat exchanger which receives a working fluid and is operative to raise the temperature of the working fluid to provide a saturated fluid, and a superheater which receives the saturated fluid from the heat exchanger and is operative to raise the temperature of the saturated fluid and provide a supersaturated fluid. 1. A steam generator for generating a superheated fluid from a working fluid using a stream of heated gas , the steam generator comprising:a housing, which defines a gas flow path having an inlet at one, upstream end thereof into which a stream of heated gas is delievered and an outlet at the other, downstream end thereof; anda steam generation module which is disposed within the gas flow path of the housing, the steam generation module comprising a heat exchanger which receives a working fluid and is operative to raise the temperature of the working fluid to provide a saturated fluid, and a superheater which receives the saturated fluid from the heat exchanger and is operative to raise the temperature of the saturated fluid and provide a supersaturated fluid.2. The steam generator of claim 1 , wherein the stream of heated gas has a temperature of from about 425° C. to about 650° C.3. The steam generator of claim 1 , wherein the stream of heated gas is an exhaust gas from a burner claim 1 , optionally a biomass burner claim 1 , or an exhaust gas from a combustion engine claim 1 , optionally a landfill anaerobic digestion gas engine claim 1 , a methane burning engine claim 1 , a diesel engine claim 1 , a marine ...

Boiler and modifying method thereof

A modification of a power boiler is disclosed, which comprises water walls enclosing the furnace for heating water and producing steam; a superheater system provided above the furnace for superheating steam; an additional superheater mounted in the furnace for further superheating steam from the superheater system. A modifying method of a power boiler is also disclosed, which comprises steps of mounting an additional superheater on water walls in a furnace; connecting an output of a superheater system to an inlet of the additional superheater; and connecting an outlet of the additional superheater to a turbine for producing power at an improved plant heat rate.

Sorbent utilization improvement by selective ash recirculation from a particulate collector

Various embodiments of a system for the removal of particulate emissions from an electric generating unit are provided, comprising: a gas producer; a primary particulate collector unit including: a primary collection hopper field each including at least one primary collection hopper, wherein each primary collection hopper includes a primary collection hopper outlet, each primary collection hopper outlet fluidically connected to a particulate discharge duct; a flue duct inlet oriented upstream of the at least one primary collection hopper field; a flue duct outlet oriented downstream of the primary collection hopper field; wherein the gas producer is fluidically connected to the primary particulate collector unit by a flue duct; and a particulate recirculation duct fluidically connected at a first end to the primary collection hopper and/or the particulate discharge duct, and fluidically connected at a second end to the flue duct upstream of the primary particulate collector unit.

СПОСОБ И СИСТЕМА ЭФФЕКТИВНОЙ ПАРОГАЗОВОЙ КОГЕНЕРАЦИИ, ОСНОВАННЫЕ НА ГАЗИФИКАЦИИ И МЕТАНИРОВАНИИ БИОМАССЫ

FIELD: energy. SUBSTANCE: invention provides a system and method of steam-gas conversion. Method of combined-cycle cogeneration based on gasification and methanation of biomass involves: 1) gasification of biomass by mixing oxygen and water vapor derived from air separation plant, with the biomass, transportation of the resulting mixture through a nozzle into gasifier, gasification of biomass at temperature of 1500-1800 °C and pressure of 1-3 MPa to obtain a crude gasified gas and transporting the superheated steamunder pressure of 5-6 MPa, resulting from heat recovery to the steam turbine; 2) conversion and purification: in accordance with the methanation reaction the ratio of hydrogen/carbon crude gasified gas generated in step 1) is corrected up to 3:1 using the conversion reaction; recovery at a low temperature of crude gasified gas using methanol to desulfurization and decarbonization, thereby obtaining a purified syngas; 3) methanation: supply of purified syngas obtained at step 2) into methanation section, consisting of a primary and secondary sections, herewith the methanation section comprises a first primary methanation reactor and second primary methanation reactor coupled in series; allowing the portion of the process gas supplied from the second primary reactor to flow back to the input of first primary reactor for mixing with fresh feed gas and further opportunities to enter the first primary reactor, so that the concentration of reagents at the inlet of first reactor reduces and temperature of the catalyst bed is regulated by process gas; supplying the syngas to secondary methanation section comprising a first secondary methanation reactor and a second secondary methanation reactor coupled in series, where a small amount of unreacted CO and a lot of CO 2 converted to CH 4 , transporting the superheated intermediate pressure steam generated in the methanation section to steam turbine; and 4) concentration of methane in natural gas containing trace ...

Annular superheating element for firetube boilers

Steam generation

Steam generation

タワーボイラ

ВЫСОКОТЕМПЕРАТУРНАЯ ПАРОСИЛОВАЯ УСТАНОВКА ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ И ВЫСОКОТЕМПЕРАТУРНЫЙ ПРЯМОТОЧНЫЙ КОТЕЛ ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ, РАБОТАЮЩИЙ ПРИ ПЕРЕМЕННОМ ДАВЛЕНИИ

FIELD: energy. SUBSTANCE: invention relates to power engineering. High-temperature steam power plant of precritical pressure comprises system of combustion boiler, generator of steam turbine system and system of condensate and feed water, wherein parameters of steam generated in boiler and fed into generator system of steam turbine, are their subcritical pressure and high temperature-temperature at turbine inlet 593 °C or higher. Also disclosed is operating at variable pressure high-temperature flow boiler precritical pressure for use in heat energy plant. EFFECT: invention allows to improve efficiency of heat energy plant. 8 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 584 745 C2 (51) МПК F01K 7/22 (2006.01) F01K 13/00 (2006.01) F22B 29/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013140948/06, 05.09.2013 (24) Дата начала отсчета срока действия патента: 05.09.2013 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.03.2015 Бюл. № 7 2 5 8 4 7 4 5 Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) ВЫСОКОТЕМПЕРАТУРНАЯ ПАРОСИЛОВАЯ УСТАНОВКА ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ И ВЫСОКОТЕМПЕРАТУРНЫЙ ПРЯМОТОЧНЫЙ КОТЕЛ ДОКРИТИЧЕСКОГО ДАВЛЕНИЯ, РАБОТАЮЩИЙ ПРИ ПЕРЕМЕННОМ ДАВЛЕНИИ (57) Реферат: Изобретение относится к энергетике. докритическим давлением и высокой Высокотемпературная паросиловая установка температурой - температура на входе турбины докритического давления содержит систему 593°С или выше. Также представлен работающий топочного котла, генераторную систему паровой при переменном давлении высокотемпературный турбины и систему конденсата и питательной прямоточный котел докритического давления воды, причем параметры пара, вырабатываемого для использования в теплосиловой установке. в системе котла и подаваемого в генераторную Изобретение позволяет улучшить эффективность систему паровой турбины, являются теплосиловой ...

СПОСОБ И СИСТЕМА ГЛУБОКОЙ УТИЛИЗАЦИИ ТЕПЛА ПРОДУКТОВ СГОРАНИЯ КОТЛОВ ЭЛЕКТРОСТАНЦИЙ

FIELD: energy. SUBSTANCE: invention relates to station power, particularly, to energy saving during operation of boilers power stations, comprising steam-turbine plants (STP). Method for deep recovery comprises feeding STP condensate into water-gas heat exchanger (WGH) at boiler outlet and heating condensate using heat of combustion products (CP), combustion products (WGH) are cooled to temperature below dew point by (5–10) °C, obtained condensate (OC) is collected, purified according to a known technology and fed into a condensate line and then successively into condensate heater, deaerator and boiler. In order to implement method, deep recycling system (DR) includes arranged under water-gas heat exchanger (WGH) condensate drain tank (OC), condensate collection and storage tanks, drain and condensate pumps, as well as condensate treatment sections, connected to condensate line of station. EFFECT: besides saving heat (fuel) present solution reduces emission of toxic oxides NO x and CO 2 due to suppression with water vapour, reducing fuel consumption, obtaining additional water, which can be used for boiler makeup and other needs, eliminates or minimises condensation in gas path and stack, improving maintenance conditions, avoiding need for flue gas recirculation for preventing condensation. 2 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 607 118 C2 (51) МПК F22B 33/18 (2006.01) F22B 1/18 (2006.01) F22G 1/02 (2006.01) F01K 17/04 (2006.01) F02G 1/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2015105043, 16.02.2015 (24) Дата начала отсчета срока действия патента: 16.02.2015 (72) Автор(ы): Шадек Евгений Глебович (RU) (73) Патентообладатель(и): Шадек Евгений Глебович (RU) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: П.А.Березинец Г.Г.Ольховский Приоритет(ы): (22) Дата подачи заявки: 16.02.2015 (43) Дата публикации заявки: 10.09.2016 Бюл. № 25 ...

КОТЕЛ, СНАБЖЕННЫЙ ПАРОПЕРЕГРЕВАТЕЛЕМ

1. Котел (1) для производства и извлечения тепловой энергии, содержащий по меньшей мере: ! - топку (2), ограниченную стенками, дном и крышей, при этом горение, используемое в качестве первичного источника тепловой энергии котла, осуществляется в нижней части топки; ! - устройства (6) для подачи топлива в топку для горения; ! - устройства (3, 7, 8, 26) для подачи обеспечивающего горение газа в топку для горения; ! - один или более каналов (11) для топочных газов, расположенных в верхней части топки и направляющих топочные газы (19), образующиеся при горении, из топки; ! отличающийся тем, что котел также содержит: ! - по меньшей мере одну камеру (17), в которой расположен по меньшей мере один пароперегреватель (15) для извлечения тепловой энергии; ! - при этом указанная камера обеспечивает прямую линию видимости (16) между пароперегревателем и первичным источником для обеспечения возможности приема тепловой энергии посредством теплового излучения; и ! - при этом указанная камера дополнительно предотвращает поступление топочных газов (19) в пароперегреватель либо полностью, либо почти полностью, во избежание приема тепловой энергии посредством конвекции. !2. Котел по п.1, отличающийся тем, что камера соединена с топкой через вход (18), через который обеспечивается прямая линия видимости между пароперегревателем и первичным источником. ! 3. Котел по п.2, отличающийся тем, что дно камеры открыто и образует указанный вход. ! 4. Котел по любому из пп.1-3, отличающийся тем, что газ, имеющий в камере, остается в камере за счет действия динамического давления потока топочных газов. ! 5. Котел по п.1, отличающийся тем, что котел дополнительно содержит горловину РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 116 182 (13) A (51) МПК F22B 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011116182/06, 22.04.2011 (71) Заявитель(и): МЕТСО ПАУЭР ОЙ (FI) Приоритет(ы): (30) Конвенционный приоритет: 23.04.2010 FI 20105445 R U (57) ...

УСТРОЙСТВО ДЛЯ ОБРАЗОВАНИЯ ПАРА ПРОМЕЖУТОЧНОГО ПЕРЕГРЕВА

Gas-steam efficient cogeneration process and system based on biomass gasification and methanation

The present invention provides a gas-steam efficient cogeneration process and system based on biomass gasification and methanation, comprising a biomass gasification unit, a transformation unit, a purification unit, a methanation unit, and a methane concentration unit. The gasification unit utilizes a locally-external constant high-temperature heat source airflow bed which can remarkably improve effective gas compositions of CO and H ...

Method and device for producing superheated steam by means of the heat produced in the boiler of an incineration plant

Abstract The present invention provides a method for generating superheated steam by heat generated in the boiler (3) of an incineration plant (2; 201), pre-superheated steam being fed to a final superheater (22), preferably being a plurality of final superheater pipes (24), through which the pre-superheated steam is guided and superheated. The final superheater pipes (24, 24', 24") are arranged at least partially in at least one cavity (26, 26', 26") in the interior of a wall element (28) and/or of a bulkhead (30) of the boiler (3), and is closed off on the boiler side at least partially by a refractory material layer (34) and is flowed over by flue gas released during combustion. The cavity (26) is flowed through by a secondary medium heated via the flue gas via the refractory layer (34). The heated secondary medium is fed via a feed line (44) to a heat exchanger (42). Fig. 2 A 52 o A21595EP/12.02.2016 ...

ANNULAR SUPERHEATING ELEMENT FOR FIRETUBE BOILERS

An annular superheater element (10) for superheating steam within firetubes (22) of firetube boilers comprising concentric inner and outer tubes and a specially designed return end cap (16). Saturated steam introduced into the outer tube (14) of said superheater element is superheated while traveling towards the burner end of the tube, is directed into the inner tube (18) by means of the return end cap (16), and travels away from the burner side of the element (10) where it is exhausted for use as superheated steam. While traversing the inner tube, the superheated steam gives off heat energy through the wall of the inner tube to the steam traveling in the outer tube towards the burner end of the tube, conserving energy. The improved superheater element produces superheated steam more efficiently, with less fuel, and steam capable of doing more work, than conventional superheater elements and can be used to retrofit existing firetube type boilers.

A BOILER EQUIPPED WITH A SUPERHEATER

A boiler comprising at least: a furnace, in whose lower part the combustion used as the primary source of thermal energy of the boiler is configured to take place; devices for supplying fuel into the furnace; devices for supplying combustion air into the furnace; one or more flue gas ducts; at least one chamber accommodating at least one steam superheater for recovering thermal energy. Said chamber is configured to allow a direct line of sight between said superheater and said primary source, to enable the reception of thermal energy by means of thermal radiation. Said chamber is further configured to prevent the entry of said flue gases to said superheater either totally or almost totally, to avoid the reception of thermal energy by convection.

WASTE HEAT COLLECTION DEVICE OF STEAM BOILER

The present invention relates to a waste heat collection device of a steam boiler. First to third heat exchangers are installed an air flue of the steam boiler to respectively have only a single function of a economizer, a hot water heater, or a superheater, or two or more heat exchangers have the same function. Thus, desires of demanders can be satisfied. The present invention comprises: a heat exchanger group (20) which has first, second, and third heat exchangers (30, 40, 50) installed in an air flue (12), connects a water supply pipe (31) to an inlet of the first heat exchanger (30), connects an outlet to a boiler body (11) by a water discharge pipe (33), connects an inlet and an outlet of the second heat exchanger (40) to a hot water storage tank (41) by a hot water supply pipe (42) and a hot water discharge pipe (44), and connects an inlet of the third heat exchanger (50) to a saturated steam branch pipe (51) connected to a main saturated steam supply pipe (13) and an outer to a superheated ...

СПОСОБ И СИСТЕМА ГЛУБОКОЙ УТИЛИЗАЦИИ ТЕПЛА ПРОДУКТОВ СГОРАНИЯ КОТЛОВ ЭЛЕКТРОСТАНЦИЙ

1. Способ глубокой утилизации тепла продуктов сгорания станционных котлов паротурбинных электростанций, содержащий подачу конденсата из конденсатора паровой турбины в газоводяной утилизационный поверхностный теплообменник, размещенный на стыке котла с газоходом, с возможностью регулируемого байпасирования части газов помимо теплообменника в газовый тракт, и нагрев конденсата за счет тепла уходящих продуктов сгорания, дальнейшую подачу его в конденсатную линию станции и на деаэратор, регулирование теплосъема в теплообменнике,отличающийся тем, что, с целью повышения тепловой экономичности технологической схемы станции и экономии топлива, увеличения КПД, снижения эмиссии токсичных оксидов NOи СО, получения дополнительной воды за счет конденсации водяных паров, содержащихся в продуктах сгорания, конденсат из конденсатора паровой турбины разделяют на два потока: первый поток направляют в конденсатную линию станции - в подогреватель конденсата, деаэратор, а затем в котел, а второй подают в размещенный на выходе котла в газоходе газоводяной утилизационный поверхностный теплообменник-конденсатор (ПТК), в котором продукты сгорания (ПС) охлаждают до температуры ниже точки росы на (5-10)°C, конденсируют водяные пары, содержащиеся в ПС, причем поданный из конденсатора и нагретый в ПТК конденсат направляют в конденсатную линию станции - в деаэратор и котел, а полученный в ПТК конденсат из ПС собирают, подвергают очистке по известной технологии и направляют в конденсатную линию станции - в подогреватель, деаэратор и котел.2. Способ по п. 1, отличающийся тем, что заданный (оптимальный) теплосъем в теплообменнике (ПТК) поддерживают регулированием РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F22B 33/18 (11) (13) 2015 105 043 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015105043, 16.02.2015 (71) Заявитель(и): Шадек Евгений Глебович (RU) Приоритет(ы): (22) Дата подачи заявки: 16.02.2015 (43) Дата публикации заявки: 10.09.2016 ...

Superheated fluid generation

APPARATUS FOR GENERATING REHEAT STEAM

The present invention relates to an apparatus for supplying and generating steam and mist in the form of reheat steam. According to the present invention, there is provided an apparatus for generating reheat steam including: a combustion chamber; a steam chamber; a plurality of steam-heating pipes; an exhaust chamber; and a heating chamber. According to the present invention, since it is possible to produce a reheat steam by primarily and secondarily heating the steam and mist supplied from the outside by the installation structure of a plurality of steam heating pipes, it is possible to improve the generation efficiency of the reheated steam.

Energy-saving boiler for brewing

Improvements in the superheating means automatic vapors resulting and applications

SYSTEM AND METHOD FOR PREHEATING HEAT RECOVERY STEAM GENERATOR

A system for preheating a heat recovery steam generator is provided. The system (10) includes a tank (14) and a heat exchanger (16). The tank (14) contains a transferring medium (22). The heat exchanger (16) is disposed in a flow path of a flue gas (18) produced by a combustion chamber (20), and is fluidly connected to the tank (14) such that the transferring medium (22) flows through the heat exchanger (16) and is heated by the flue gas (18). The transferring medium (22) preheats one or more components (14, 24, 26) of the heat recovery steam generator (12). COPYRIGHT KIPO 2017 ...

HIGH LIFE INCINERATING TRASH TYPE BOILER

According to the present invention, a long-life incineration boiler includes an echo-filter installed on a lower side of a superheater, which is beside an inlet through which combustion gas flows to the superheater. The echo-filter removes dust including harmful components of the combustion gas by functioning as a filter. Thus, since dust can be fundamentally prevented from being fused on a tube of the superheater at a high temperature, the thermal efficiency of the superheater can be kept constant, and the tube can be prevented from being broken by high-temperature corrosion. Moreover, a phenomenon wherein the flow of combustion gas is disturbed by dust fused on a tube at a high temperature can be eliminated, and the need for periodically removing the dust fused on the tube at a high temperature can be eliminated, thus considerably increasing consecutive operation cycles of the incineration boiler. Moreover, the echo-filter converts the temperature of inlet gas requested by the superheater into a proper temperature, and properly controls the flow velocity of the combustion gas, thereby increasing the general thermal efficiency of the incineration boiler as well as the efficiency of the superheater. Thus, the amount of steam produced from the incineration boiler can be increased.

HEAT EXCHANGER HAVING A COUNTERFLOW EVAPORATOR

An evaporator including a lower drum, an upper drum, and at least one tube extending between the lower drum and the upper drum. The plurality of tubes have fluid passageways therein extending from the lower drum to the upper drum. A duct is provided having a heating gas passageway provided therein. The at least one tube extends through the heating gas passageway. The fluid passageways define an overall flow path from the lower drum to the upper drum extending in a direction substantially counter- current to an overall flow path defined by the heating gas passageway extending from a gas inlet of the heating gas passageway to a gas outlet thereof.

ARRANGEMENT FOR AND A METHOD OF OPERATING A STEAM BOILER SYSTEM

A method of operating and an arrangement for a steam boiler system including a furnace and along a following flue gas channel a number of superheaters, a number of economizers, and at least one air preheater located in the flue gas channel downstream of the economizers, a fabric filter baghouse located in the flue gas channel downstream of the air preheater, and downstream of the fabric filter baghouse is located a selective catalytic reduction (SCR) system including an SCR reactor, a high pressure steam coil heater upstream of the SCR reactor and a gas-gas heat exchanger connected upstream and downstream of the SCR reactor to transfer heat from flue gas after the SCR reactor to the flue gas upstream of the high pressure steam coil heater.

DEVICE AND METHOD FOR BOILER SUPERHEAT TEMPERATURE CONTROL

Термоаккумулятор для каменки (варианты)

Группа изобретений относится к оборудованию бань и может быть использована для отопления парильного помещения и получения пара. Термоаккумулятор для каменки выполнен в виде полой металлической катушки, снабженной дном, стенками, внутренним каналом, расположенным по оси катушки. Между стенками корпуса расположен наполнитель, выполненный в виде намотанной вокруг внутреннего канала витой ленты из коррозионностойкой стали аустенитной группы. Термоаккумулятор для каменки выполнен в виде полой металлической катушки, снабженной дном, стенками, вогнутой внутрь крышкой, жестко соединенной со стенками, и расположенным между стенками корпуса катушки наполнителем. Технический результат заключается в повышении теплоотдачи и срока службы теплоаккумулирующей загрузки, укладываемой в каменку печи. 2 н. и 16 з.п. ф-лы, 3 ил.

Improvements in or relating to tubular elements of loop formation for use in fluid heaters

339,198. Superheater Co., Ltd., (Superheater Co.). Feb. 14, 1930. Addition to 330,385. Drawings to Specification. U-tube and like superheaters.-In a loopedtube steam or other fluid heater having the outlet portion of the piping forming an element of reduced internal diameter, as described in the parent Specification, the outlet portion is of greater wall thickness and at the same time may be of the same external diameter as the rest of the piping of the element. The elements may be manufactured as described in Specifications 6304/15 and 120,042, [both in Class 99 (i), Pipes and tubes, Joints &c. for].

LARGE SCALE COST EFFECTIVE DIRECT STEAM GENERATOR SYSTEM, METHOD, AND APPARATUS

Embodiments of the present disclosure can include a system for generating steam. The system can include a direct steam generator configured to generate saturated steam and combustion exhaust constituents. A close coupled heat exchanger can be fluidly coupled to the direct steam generator, the close coupled heat exchanger can be configured to route the saturated or superheated steam and combustion exhaust constituents through an exhaust constituent removal system. The system can include an energy recovery system that reclaims the energy from the exhaust constituents.

ONCE-THROUGH STEAM GENERATOR

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section.

Improvements with the vapor superheaters

Combustion device and power generation system able to internal flue gas recirculation

METHOD FOR COOLING COMBUSTION GASES IN A HEAT EXCHANGER OF A STEAM GENERATION PLANT

TOWER BOILER

This tower boiler (1) comprises a furnace wall (3) for forming a boiler main unit (2) and performing heat exchange with combustion gas (G) produced inside the boiler main unit (2), and a heat transfer unit positioned above the boiler main unit (2) and used for performing heat exchange with the combustion gas (G) produced inside the boiler main unit (2). The heat transfer unit comprises a plurality of superheaters (6 to 8), and the adjacent pitch (Pw) of heat transfer tubes in at least the superheaters (6, 7) positioned on the side nearest to lower part (3a) of the furnace wall among the superheaters (6 to 8) is set to be greater than the adjacent pitch (Pn) of heat transfer tubes (11) in the superheater (8) positioned on the side set at a distance from the lower part (3a) of the furnace wall.

Vorrichtung zum Messen der Rohrwandtemperatur und zum Sichern der Rohre gegen unzulaessig grossen Waermestau

A steam generator having a heat exchanger and a superheater

A steam generator for generating a superheated fluid from a working fluid has a heat exchanger and a superheater. The generator has a housing 31 which defines a gas flow path having an inlet at one, upstream end thereof into which a stream of heated gas is delivered and an outlet at the other, downstream end thereof; and a steam generation module which is disposed within the gas flow path of the housing, the steam generation module comprising at least one heat exchanger unit (71, fig 5c) which receives a working fluid and is operative to raise the temperature of a working fluid to provide a saturated fluid, and a superheater unit (201, fig 5c) which receives the saturated fluid from the at least one heat exchanger unit and is operative to raise the temperature of the saturated fluid and provide a supersaturated fluid.

ONCE THROUGH STEAM GENERATOR WITH 100% QUALITY STEAM OUTPUT

A system for deriving 100% quality steam for steam assisted gravity drainage (SAGD) injection or other applications features a once through steam generator (OTSG), a steam-water separator connected downstream of the OTSG's radiant tubes to separate steam and water from a two-phase flow received therefrom, superheater tubes installed in the convection section and connected to a steam outlet of the steam-water separator in downstream relation thereto to receive and heat dried steam therefrom to a superheated state, and a desuperheater connected downstream of the superheater tubes to receive the superheated steam therefrom and use same to vaporize blowdown water from the steam-water separator, whereby the vaporized blowdown water and the superheated steam collectively form a superheated steam output for the intended application, typically after additional separation of solid particles therefrom for optimal steam quality.

APPARATUS FOR GENERATING REHEAT STEAM

The present invention relates to an apparatus for generating and supplying steam or mist in the form of reheat steam, and provides the apparatus for generating reheat steam comprising: a combustion chamber provided with a space portion having a specific volume and a burner which is installed at the center of the upper end of the inside of the combustion chamber; a steam chamber, which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, for heating for the first time using heat transferred from the combustion chamber, steam or dissipated mist at a specific temperature that is supplied from the outside; a plurality of steam-heating pipes, which are wound in the form of a coil inside the combustion chamber, for heating for the second time by means of flames generated from the burner, the steam or the mist supplied after being heated for the first time in the steam chamber, into reheat steam at a specific temperature; an exhaust ...

MULTIPURPOSE INCINERATING BOILER

According to the present invention, a multipurpose incinerating boiler comprises: chambers composed of a plurality of tubes and a boiler container, through which combustion gas generated when waste is incinerated in an incinerating room passes in order; a steam drum interconnected to the tubes for water and steam flowing in the tubes to be collected; and a super heater receiving heat from the combustion gas passing through the chambers to change saturated steam supplied from the steam drum to superheated steam having a temperature that a steam requirement facility requires and then supply the superheated steam to the steam requirement facility. COPYRIGHT KIPO 2018 ...

Once-through steam generator

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section.

Boiler equipped with a superheater

A boiler (1) comprising at least: a furnace (2), in whose lower part the combustion used as the primary source of thermal energy of the boiler is configured to take place; devices (6) for supplying fuel into the furnace; devices (3, 7, 8, 26) for supplying combustion air into the furnace; one or more flue gas ducts (11); at least one chamber (17) accommodating at least one steam superheater (15) for recovering thermal energy. Said chamber is configured to allow a direct line of sight (16) between said superheater and said primary source, to enable the reception of thermal energy by means of thermal radiation. Said chamber is further configured to prevent the entry of said flue gases (19) to said superheater either totally or almost totally, to avoid the reception of thermal energy by convection.

Apparatus for generating reheat steam

The present invention relates to an apparatus for generating and supplying steam or mist in the form of reheat steam, and provides the apparatus for generating reheat steam comprising: a combustion chamber provided with a space portion having a specific volume and a burner which is installed at the center of the upper end of the inside of the combustion chamber; a steam chamber, which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, for heating for the first time using heat transferred from the combustion chamber, steam or dissipated mist at a specific temperature that is supplied from the outside; a plurality of steam-heating pipes, which are wound in the form of a coil inside the combustion chamber, for heating for the second time by means of flames generated from the burner, the steam or the mist supplied after being heated for the first time in the steam chamber, into reheat steam at a specific temperature; an exhaust chamber having a specific volume, which is formed around the outer circumference of the steam chamber and communicates with the combustion chamber, for discharging exhaust gas combusted in the combustion chamber through a gas exhaust pipe; and a heating chamber having a specific volume, which is formed around the outer circumference of the exhaust chamber, for heating steam or air supplied from the outside using heat transferred from the exhaust chamber.

METHOD AND DEVICE FOR PRODUCING SUPERHEATED STEAM BY MEANS OF THE HEAT PRODUCED IN THE BOILER OF AN INCINERATION PLANT

The present invention relates to a method for generating superheated steam by means of the heat which is generated in the boiler (3) of an incineration plant (2; 201), presuperheated steam being fed to a final superheater (22) which is present in the form of a plurality of final superheater pipes (24), through which the pre-superheated steam is guided and is finally superheated in the process, and the final superheater pipes (24, 24', 24") being arranged at least partially in at least one cavity (26, 26', 26") which is configured in the interior of a wall element (28) of the boiler (3) and/or of a bulkhead (30) which is arranged in the boiler (3), and is closed off on the boiler side at least partially by way of a refractory material layer (34) and is flowed over by the flue gas which is released during the combustion. According to the invention, the cavity (26) is flowed through by a secondary medium which is heated in the process via heat transfer from the flue gas via the refractory ...

Patent FR2201747A5

Improvements with the exchangers of temperature and more particularly with the vapor superheaters

Process of overheating of the vapor in the boilers

FIRE-TUBE BOILER FOR THE PRODUCTION OF VAPOR SATUREE OR SURCHAUFFEE

고온튜브부식과 클링커 생성 감소가 가능한 고형연료 열이용 순환유동층 연소보일러, 및 그 작동방법

... 본 발명은 고온튜브부식과 클링커 생성 감소가 가능한 고형연료 열이용 순환유동층 연소보일러, 및 그 작동방법에 대한 것이다. 보다 상세하게는 고형연료를 연소하여 연소 배가스를 생성하는 유동층연소로에서 토출되는 연소 배가스의 열을 회수하기 위한 대류 전열부에 있어서, 급수펌프에 의해 공급되는 급수가 유동되며, 상기 연소 배가스의 열을 흡수하여 예열되는 제1절탄기; 상기 제1절탄기의 전류측 구비되어, 스팀드럼에서 공급되는 스팀이 유동되며 상기 연소배가스에 의해 가열되는 과열기; 및 상기 과열기의 전류측에 구비되며, 상기 제1절탄기에서 토출된 상기 급수가 유동되어, 상기 과열기를 통과하기 전의 상기 연소 배가스를 냉각하는 제2절탄기;를 포함하는 것을 특징으로 하는 고온튜브부식과 클링커 생성 감소가 가능한 고형연료 열이용 순환유동층 연소보일러의 대류 전열부에 관한 것이다.

WATER VAPORIZER WITH INTERMEDIATE STEAM SUPERHEATING PASS

The present invention provides a water vaporizer including a first flow path connected to a water inlet, a second flow path for receiving superheated water vapor from the first flow path and being connected to a vapor outlet to exhaust the superheated water vapor, and a third flow path extending between an exhaust inlet and an exhaust outlet and being oriented to transfer heat from an exhaust flow to the superheated water vapor. The water vaporizer can also include a first convoluted fin positioned along the second flow path, and a second convoluted fin positioned along the second flow path adjacent to and separated from the first fin to define a gap extending between the first and second fins along a length of the first fin in a direction substantially parallel to the exhaust flow along the third flow path.

Device with a heat exchanger and method for operating a heat exchanger of a steam generating plant

A device with a heat exchanger with a feed pipe for a medium leading from a medium inlet to the heat exchanger entrance and with a discharge pipe leading away from the heat exchanger exit is characterized in that it has a first bypass from the medium inlet to the discharge pipe and a second bypass from the feed pipe to the medium outlet and valves, so that the medium can also flow from the heat exchanger exit to the heat exchanger entrance.

Steam unit for generating superheated steam in a waste incineration unit

Ein Dampferzeuger (1) zur Erzeugung von überhitztem Dampf in einer Abfallverbrennungsanlage, mit einem Kesselgehäuse (2) enthaltend eine Brennkammer (4), deren Wände (18) einen Verdampfer mit von Wasser durchströmten Rohrleitungen (20) aufweist, die zur Erzeugung von Heißdampf mit bei der Verbrennung des Abfalls freigesetzter Wärmeenergie beaufschlagt werden, sowie einen Wandüberhitzer zur Erhöhung der Temperatur des Heißdampfs, welcher mehrere in der Wand (36) des Kesselgehäuses (2) aufgenommene, vom Heißdampf durchströmte Rohrleitungen (28) umfasst, die vor dem beim Verbrennungsprozess entstehenden Rauchgas (13) durch plattenförmige Elemente (32) aus einem korrosionsbeständigen Werkstoff geschützt sind, zeichnet sich dadurch aus, dass das Kesselgehäuse (2) einen die von Wasser durchströmten Rohrleitungen (20) enthaltenden Verdampfer-Gehäuseteil (24) sowie einen von diesem räumlich getrennten, die von Heißdampf durchströmten Rohrleitungen (28) enthaltenden Wandüberhitzer-Gehäuseteil (26 ...

HEAT RECOVERY STEAM GENERATOR AND THERMAL STEAM GENERATION PLANT

A recovery steam generator (4) comprises: a flue-gases flowing chamber (11) extending along a longitudinal axis (A) and provided with an inlet (16) and an outlet (17); a steam circuit (14) supplied with water and extending at least partially within the flue-gases flowing chamber (11) so as to exploit the heat of the flue-gases to generate steam; the steam circuit (14) comprising: • a superheating section (20) comprising at least two superheating banks (22; 27) arranged in series with each other; • a plurality of connecting pipes (25, 29) configured to connect the at least two superheating banks (22; 27) in series with each other; • at least a plurality of first injection pipes (30; 31) configured to inject a first heat transfer fluid into each of the connecting pipes (25; 25, 29); • a control device (34) configured to regulate the flow rate of the first heat transfer fluid supplied via the first injection pipes (30; 31).

Superheated fluid generation

Device and method for boiler superheat temperature control

Method and device for producing superheated steam by means of the heat produced in the boiler of an incineration plant

Abstract The present invention provides a method for generating superheated steam by heat generated in the boiler (3) of an incineration plant (2; 201), pre-superheated steam being fed to a final superheater (22), preferably being a plurality of final superheater pipes (24), through which the pre-superheated steam is guided and superheated. The final superheater pipes (24, 24', 24") are arranged at least partially in at least one cavity (26, 26', 26") in the interior of a wall element (28) and/or of a bulkhead (30) of the boiler (3), and is closed off on the boiler side at least partially by a refractory material layer (34) and is flowed over by flue gas released during combustion. The cavity (26) is flowed through by a secondary medium heated via the flue gas via the refractory layer (34). The heated secondary medium is fed via a feed line (44) to a heat exchanger (42). Fig. 2 /\i A21595EP/12.02.2016 ...

Process of overheating of the vapor in the boilers

EXCHANGER OF HEAT

L'invention concerne un échangeur de chaleur de vaporisation (10) destiné à vaporiser un écoulement de fluide en utilisant un écoulement contenant de l'énergie thermique. Des trajets d'écoulement, par exemple un gaz d'échappement arrivant à une entrée (14) et partant par une sortie (16), et d'eau arrivant à une entrée (18) et s'évacuant par une sortie (20), sont disposés l'un par rapport à l'autre de façon que l'écoulement de fluide parcoure des passes multiples dans lesquelles le fluide est vaporisé et ensuite surchauffé. Domaine d'application : vaporiseurs d'eau, etc.

Steam generation

A heat exchanger assembly, comprising: heat exchanger pipework which comprises a plurality of elongate tube elements which extend in spaced relation and a plurality of pipe end couplings which fluidly connect open ends of respective tube elements, wherein the pipe end couplings each comprise a main body part to which the open ends of the respective tube elements are fixed, and an enclosure part which is fixed to the main body part and provides a closed fluid connection between the open ends of the respective tube elements; and a plurality of fins which extend in spaced relation and optionally substantially orthogonally to the tube elements, wherein the fins each comprise a sheet element, optionally a single, continuous sheet element, which includes a plurality of apertures through which extend respective ones of the tube elements, and a plurality of fin coupling elements which are located within respective ones of the fin apertures to interface the tube elements to the sheet elements.

STEAM BOILER

ONCE THROUGH STEAM GENERATOR WITH 100% QUALITY STEAM OUTPUT

A system for deriving 100% quality steam for steam assisted gravity drainage (SAGD) injection or other applications features a once through steam generator (OTSG), a steam-water separator connected downstream of the OTSG's radiant tubes to separate steam and water from a two-phase flow received therefrom, superheater tubes installed in the convection section and connected to a steam outlet of the steam-water separator in downstream relation thereto to receive and heat dried steam therefrom to a superheated state, and a desuperheater connected downstream of the superheater tubes to receive the superheated steam therefrom and use same to vaporize blowdown water from the steam-water separator, whereby the vaporized blowdown water and the superheated steam collectively form a superheated steam output for the intended application, typically after additional separation of solid particles therefrom for optimal steam quality.

APPARATUS AND METHOD FOR INCREASING BIOMASS PYROLYSIS AND GAS PRODUCTION SPEED AND OBTAINING NANO-SCALE SILICA MATERIAL

The present invention provides an apparatus and a method for increasing a biomass pyrolysis and gas production speed and obtaining a nano-scale silica material. The apparatus comprises a spiral feeding apparatus, a pretreatment stirrer, a pyrolysis apparatus, a combustion apparatus, a steam generator and a calcination apparatus. A biomass raw material is sent to the pretreatment stirrer through the spiral feeding apparatus. The biomass raw material after stirring is mixed with superheated steam generated by the steam generator and enters the pyrolysis apparatus. Combustible gas separated out from the pyrolysis apparatus enters the combustion apparatus for combustion. Hot flue gas generated by combustion in the combustion apparatus heats the steam generator to generate the superheated steam. Ash discharged from an ash outlet in a lower part of the pyrolysis apparatus enters the calcination apparatus for calcination. The present invention uses the superheated steam to heat and dry the biomass ...

DEVICE WITH A HEAT EXCHANGER AND METHOD FOR OPERATING A HEAT EXCHANGER OF A STEAM GENERATING PLANT

A device with a heat exchanger with a feed pipe for a medium leading from a medium inlet to the heat exchanger entrance and with a discharge pipe leading away from the heat exchanger exit is characterized in that it has a first bypass from the medium inlet to the discharge pipe and a second bypass from the feed pipe to the medium outlet and valves, so that the medium can also flow from the heat exchanger exit to the heat exchanger entrance.

DEVICE WITH A HEAT EXCHANGER AND METHOD FOR OPERATING A HEAT EXCHANGER OF A STEAM GENERATING PLANT

A device with a heat exchanger with a feed pipe for a medium leading from a medium inlet to the heat exchanger entrance and with a discharge pipe leading away from the heat exchanger exit is characterized in that it has a first bypass from the medium inlet to the discharge pipe and a second bypass from the feed pipe to the medium outlet and valves, so that the medium can also flow from the heat exchanger exit to the heat exchanger entrance.

ONCE-THROUGH STEAM GENERATOR

... ²A once-through steam generator comprises a duct having an inlet end in ²communication with a source of a hot gas; and a tube bundle installed in the ²duct and ²comprising multiple heat transfer tubes. The tube bundle has an economizer ²section, an ²evaporator section, and a superheater section. A steam separating device may ²be ²positioned between the evaporator section and the superheater section, ²wherein, as part of a ²wet start-up, hot water collected by the steam separating device is delivered ²from the steam ²separating device to mix with cold feedwater before it is introduced into the ²economizer ²section. A start-up module may be positioned in the duct near the inlet end, ²wherein, as ²part of a dry start-up, cold feedwater is delivered into the start-up module ²to generate hot ²water that is then mixed into the feedwater stream before it is introduced ²into the ²economizer section.² ...

ONCE-THROUGH STEAM GENERATOR

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section.

GAS-STEAM EFFICIENT COGENERATION PROCESS AND SYSTEM BASED ON BIOMASS GASIFICATION AND METHANATION

The present invention provides a gas-steam efficient cogeneration process and system based on biomass gasification and methanation, comprising a biomass gasification unit, a transformation unit, a purification unit, a methanation unit, and a methane concentration unit. The gasification unit utilizes a locally-external constant high-temperature heat source airflow bed which can remarkably improve effective gas compositions of CO and H2 and improve biomass gasification efficiency. The gasification unit can greatly reduce the quantity of tar produced at a high temperature, improves the carbon conversion rate, and removes investment on a tar removing device. In the process of methanation, the conversion efficiency of CO reaches 100%, and the conversion efficiency of H2 reaches 99%. Also, a large amount of by-product intermediate pressure superheated steam is produced, and power consumption of a circulation compressor in the traditional methanation process is reduced. The present invention has the advantages that biomass energy can be converted into clean, high-calorific-value, and convenient-for-use natural gas, and a large amount of heat released in the biomass gasification and methanation reaction can be efficiently recycled through a mode of producing high-quality superheated steam.

Improvements to steam superheaters

연소가스 흐름 개선형 소각 보일러 시스템

... 본 발명에 따른 연소가스 흐름 개선형 소각 보일러 시스템은, 제1연소실; 상기 제1연소실과 연통된 제2연소실; 상기 제2연소실과 연통된 제3연소실; 상기 제3연소실과 연통되며, 몸체와 상부드럼과 하부드럼과 과열기로 구성된 보일러; 및 상기 제3연소실과 상기 보일러가 연통되는 부분에 설치된, 통로확장부와 분진제거부로 구성된 연소가스 흐름 개선유닛;을 포함하는 것을 특징으로 한다.

Feed water-heating system for power supply plant

The feed water-heating system for a power supply plant with a steam turbine, a condenser and a steam generator, has a feed water device to heat water flowing from the condenser for supply to the steam generator. The feed water device has a steam injector and is used for receiving drive steam and out-flowing water and then mixing the two in order to increase the mixture temperature and pressure. The drive steam is an outlet steam flow which is extracted from the steam turbine. The feed water device has a branch pipe from the input pipe to the steam generator. A pressure-reducing device is used to boil feed water that is passed via the branch pipe under reduced pressure and a condensate collector for a gas-liquid separation of the boiled water in the pressure-reducing device so that the drive steam is steam generated by the condensate-collector.

STEAM BOILER

CIRCULATING FLUIDIZED BED COMBUSTION BOILER USING SOLID FUEL FOR REDUCING HIGH TEMPERATURE TUBE CORROSION AND GENERATION OF CLINKER, AND OPERATING METHOD THEREOF

The present invention relates to a circulating fluidized bed combustion boiler using a solid fuel for reducing high temperature tube corrosion and generation of clinker, and operating method thereof. More specifically, a convection heat transmission unit for collecting heat of combustion exhaust gas discharged from a fluidized bed combustion path generating combustion exhaust gas by combusting a solid fuel comprises: a first economizer, in which water supplied by a water supply pump flows, preheated by absorbing heat of the combustion exhaust gas; an over heater provided on a current side of the first economizer, allowing steam supplied from a steam drum to flow, and heated by the combustion exhaust gas; and a second economizer provided on a current side of the over heater, allowing the supplied water discharged from the first economizer to flow, and cooling the combustion exhaust gas before passing through the over heater. COPYRIGHT KIPO 2018 ...

DEVICE AND METHOD FOR PRODUCING NANO SILICA MATERAILS FROM PYROLYSIS OF BIOMASS

A device for speeding up production rate of biomass pyrolysis gas to prepare nanoscale silica materials. The device includes: a screw feeder; a mixer; a pyrolysis device having a cinder hole; a combustion train; a steam generator; and a calcination device. In operation, biomass material is transported to the mixer via the screw feeder. The mixer operates to stir the biomass material, then the biomass material and overheated steam generated by the steam generator are mixed and introduced to the pyrolysis device. The pyrolysis device operates to produce combustible gas, and the combustible gas is combusted in the combustion train. The combustion train produces hot smoke, and the hot smoke heats the steam generator to produce the overheated steam. The cinder hole is disposed at a bottom of the pyrolysis device and operates to discharge cinder, and the cinder is transported to the calcination device to calcine. 2. The device of claim 1 , wherein the steam generator is an electrical steam generator claim 1 , a fuel-oil steam generator claim 1 , or a fuel-gas steam generator.3. The device of claim 2 , wherein the steam generator is the fuel-oil steam generator.4. The device of claim 3 , wherein the fuel-oil steam generator comprises a chamber claim 3 , an S-shaped coiler claim 3 , a water tank claim 3 , and an overheating coiler having two-way fins; the S-shaped coiler claim 3 , the water tank claim 3 , and the overheating coiler having two-way fins are arranged from bottom to top in the chamber in that order.5. A method for speeding up production rate of biomass pyrolysis gas to prepare nanoscale silica materials claim 3 , the method comprising:uniformly stirring biomass material;heating and drying the biomass material using overheated steam, wherein a temperature of the overheated steam ranges between 120° C. and 150° C.;pyrolyzing the biomass material under anaerobic conditions to yield combustible gas, wherein a pyrolysis temperature ranges between 600° C. and 800° C ...

EVAPORATOR AND RANKINE CYCLE SYSTEM

An evaporator includes an introducing portion that introduces a heat source gas from a heat source gas pipe, a heat source gas passage through which the heat source gas introduced from the introducing portion flows, a heating portion that is disposed in the heat source gas passage and at which a working fluid is heated by the heat source gas, an increasing portion at which a cross-sectional area of the heat source gas passage gradually increases from an upstream side towards a downstream side in the heat source gas passage, and a flow regulating plate that is disposed on an upstream side from the heating portion in the heat source gas passage and that has a plurality of holes which allow the heat source gas to pass through the plurality of holes. 1. An evaporator comprising:an introducing portion that introduces a heat source gas from a heat source gas pipe;a heat source gas passage through which the heat source gas introduced from the introducing portion flows;a heating portion that is disposed in the heat source gas passage and at which a working fluid is heated by the heat source gas;an increasing portion that is located between the introducing portion and the heating portion, that constitutes the heat source gas passage, and at which a cross-sectional area of the heat source gas passage gradually increases from an upstream side towards a downstream side in the heat source gas passage; anda flow regulating plate that is disposed on an upstream side from the heating portion in the heat source gas passage and that has a plurality of holes which allow the heat source gas to pass through the plurality of holes.2. The evaporator according to claim 1 ,wherein an open area ratio of the flow regulating plate is greater than or equal to 15% and less than or equal to 35%.3. The evaporator according to claim 1 ,wherein the heating portion includes a heat transfer pipe constituting a working fluid passage, andwherein a diameter of each of the plurality of holes is smaller ...

ONCE-THROUGH STEAM GENERATOR

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section. 1. A once-through steam generator , comprising:a duct having an inlet end in communication with a source of a hot gas;a tube bundle installed in the duct and comprising multiple heat transfer tubes that each define a path from a top end to a bottom end, the tube bundle being characterized as having an economizer section, an evaporator section, and a superheater section, with feedwater being received at the top end in the economizer section and superheated steam being discharged at the bottom end from the superheater section; anda steam separating device positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section, thus minimizing any thermal shock to the tube bundle.2. The once-through steam generator as recited in claim 1 , in which the steam separating device is a loop seal separator.3. The once-through steam generator as recited in claim 2 , in which the loop seal separator is ...

Once Through Steam Generator with 100% Quality Steam Output

A system for deriving 100% quality steam for steam assisted gravity drainage (SAGD) injection or other applications features a once through steam generator (OTSG), a steam-water separator connected downstream of the OTSG's radiant tubes to separate steam and water from a two-phase flow received therefrom, superheater tubes installed in the convection section and connected to a steam outlet of the steam-water separator in downstream relation thereto to receive and heat dried steam therefrom to a superheated state, and a desuperheater connected downstream of the superheater tubes to receive the superheated steam therefrom and use same to vaporize blowdown water from the steam-water separator, whereby the vaporized blowdown water and the superheated steam collectively form a superheated steam output for the intended application, typically after additional separation of solid particles therefrom for optimal steam quality.

Superheated steam boiler and method for operation thereof

Provided is a superheated steam boiler. The superheated steam boiler, in this embodiment, includes an inner tank system, the inner tank system including a first wet tank and a second dry tank separated from one another by an isolation member, an outer sleeve at least partially surrounding the inner tank system, wherein one or more wet tank fluid openings proximate a lower surface of the first wet tank allow the first wet tank to be in fluid communication with the outer sleeve, and further wherein one or more dry tank steam openings in the second dry tank allow the second dry tank to be in steam communication with the outer sleeve, and a burner system located primarily within the inner tank system. The burner system, in this embodiment, includes a combustion/expansion chamber having one or more spherical surfaces located in and fluidly isolated from the first wet tank, a distribution chamber located in and fluidly isolated from the second dry tank, a plurality of heat tubes extending through the isolation member between the combustion/expansion chamber and the distribution chamber; and an exhaust tube extending from the distribution chamber and out of the inner tank system to exit the superheated steam boiler.

STEAM GENERATOR FOR PRODUCING SUPERHEATED STEAM IN A WASTE INCINERATION PLANT

A steam generator for producing superheated steam in a waste incineration plant, includes a boiler housing having a combustion chamber with walls having an evaporator. The evaporator has tubes carrying water and being acted upon by heat energy released during incineration of waste, for producing superheated steam. A wall superheater for increasing temperature of the superheated steam includes a plurality of tubes in a wall of the boiler housing for carrying superheated steam being protected against flue gas from an incineration process by plate-like elements formed of a corrosion-proof material. The boiler housing includes an evaporator housing section having the water-carrying tubes and a wall-superheater housing section spatially separated from the evaporator housing section and having the superheated steam-carrying tubes. The wall-superheater housing section is movable relative to and disposed downstream of the evaporator housing section in flue gas flow direction. 1. A steam generator for producing superheated steam in a waste incineration plant , the steam generator comprising:a boiler housing having a first vertical flue and a second vertical flue for flue gas connected flow-wise to said first vertical flue, said first vertical flue and said second vertical flue forming units being movable relative to each other in horizontal and vertical directions;an evaporator housing section in said first vertical flue and a wall-superheater housing section in said second vertical flue;said wall-superheater housing section being spatially separated from said evaporator housing section, movable relative to said evaporator housing section and disposed downstream of said evaporator housing section in a flow direction of the flue gas from an incineration process;a combustion chamber disposed in said first vertical flue of said boiler housing, said combustion chamber having walls with an evaporator, said evaporator having tubes exposed to a throughflow of water and acted upon ...

Small supercritical once-thru steam generator

A small supercritical once-through steam generator (OTSG) includes a radiant section with a furnace coil, and a convection section downstream of the radiant section that includes a superheater which is fluidically connected to the furnace coil. Optionally, the OTSG is devoid of a steam separator. An economizer can also be included downstream of the superheater. Supercritical steam can be generated using the OTSG, for use, among other things, in enhanced oil recovery applications.

ANNULAR SUPERHEATING ELEMENT FOR FIRETUBE BOILERS

An annular superheater element for superheating steam within firetubes of firetube boilers comprising concentric inner and outer tubes and a specially designed return end cap. Saturated steam introduced into the outer tube of said superheater element is superheated while traveling towards the burner end of the tube, is directed into the inner tube by means of the return end cap, and travels away from the burner side of the element where it is exhausted for use as superheated steam. While traversing the inner tube, the superheated steam gives off heat energy through the wall of the inner tube to the steam traveling in the outer tube towards the burner end of the tube, conserving energy. The improved superheater element produces superheated steam more efficiently, with less fuel, and steam capable of doing more work, than conventional superheater elements and can be used to retrofit existing firetube type boilers. 1. A superheater element for conducting superheated steam within a firetube of a firetube boiler comprising:an outer tube concentric about an inner tube;a return connecting said outer and inner tubes at one end;an inlet manifold connected to the non-return end of said outer tube; andan outlet manifold connected to the non-return end of said inner tube.2. The superheater element of wherein said return has a concave inner surface that is rotationally symmetric at all angles of rotation and wherein the center of said inner surface extends towards said inner tube.3. The superheater element of wherein said inner and outer tubes are fabricated from material with high thermal conductivity characteristics.4. The superheater element of wherein said inner tube is fabricated from material selected from a group comprising of carbon steel claim 1 , stainless steel claim 1 , and steel comprising chromium claim 1 , molybdenum claim 1 , and manganese alloys.5. The superheater element of wherein said return is fabricated from a high carbon alloy steel encased within boiler ...

Once-through evaporator systems

The present application provides a once-through evaporator system. The once-through evaporator system may include a number of enlarged once-through evaporator sections, a first superheater positioned immediately downstream of the enlarged once-through evaporator sections, a second superheater positioned downstream of the first superheater, and an attemperator positioned between the first superheater and the second superheater.

ONCE-THROUGH STEAM GENERATOR

A once-through steam generator comprises a duct having an inlet end in communication with a source of a hot gas; and a tube bundle installed in the duct and comprising multiple heat transfer tubes. The tube bundle has an economizer section, an evaporator section, and a superheater section. A steam separating device may be positioned between the evaporator section and the superheater section, wherein, as part of a wet start-up, hot water collected by the steam separating device is delivered from the steam separating device to mix with cold feedwater before it is introduced into the economizer section. A start-up module may be positioned in the duct near the inlet end, wherein, as part of a dry start-up, cold feedwater is delivered into the start-up module to generate hot water that is then mixed into the feedwater stream before it is introduced into the economizer section. 1. A once-through steam generator , comprising:a duct having an inlet end in communication with a source of a hot gas;a tube bundle installed in the duct and comprising multiple heat transfer tubes that each define a single path from a top end to a bottom end, the tube bundle being characterized as having an economizer section, an evaporator section, and a superheater section, with a feedwater stream being received at the top end in the economizer section and superheated steam being discharged at the bottom end from the superheater section; anda start-up module comprised of a set of heat transfer tubes positioned in the duct near the inlet end and in fluid communication with the feedwater delivery piping, wherein, as part of a dry start-up, a first stream of cold feedwater is delivered into the start-up module to initially generate superheated steam which is delivered to and enters into the economizer section as an inlet stream to begin a controlled cool-down, with the inlet stream transitioning from such superheated steam to hot water as a rate of the first stream of cold feedwater delivered to ...

WASTE-TO-ENERGY PLANT

A Waste-to-Energy plant comprising: an incineration chamber in which waste is combusted generating flue gas; an economizer heating feedwater using heat from the flue gas; an evaporator producing steam from the heated feedwater using heat from the flue gas; a steam drum receiving heated feedwater from the economizer and supplying heated feedwater, the steam drum receiving steam from the evaporator and supplying steam; and a superheater receiving and heating steam from the steam drum to a superheated steam using heat from the flue gas; the incineration chamber comprising a first PCM-wall and a second PCM-wall each comprising a plurality of pipes and a layer of PCM provided between the pipes and the incineration chamber, the pipes in the first PCM-wall receiving heated feedwater from the steam drum and producing additional steam therein and the pipes of the second PCM-wall additionally heating steam therein using radiant heat from the incineration chamber. 1. A Waste-to-Energy plant comprising:an incineration chamber in which waste is combusted generating hot flue gas;at least one economizer to heat feedwater using heat from the hot flue gas;at least one evaporator to produce steam from the heated feedwater using heat from the hot flue gas;at least one steam drum to receive the heated feedwater from the at least one economizer and serve as a supply for the heated feedwater, the at least one steam drum further to receive the steam from the at least one evaporator and serve as a supply for the steam; andat least one superheater to receive the steam from the at least one steam drum and to further heat the steam to a superheated steam using heat from the hot flue gas;wherein the incineration chamber comprises a first PCM-wall and a second PCM-wall each comprising a plurality of pipes and a layer of PCM provided between the pipes and the incineration chamber, the plurality of pipes in the first PCM-wall receiving the heated feedwater from the steam drum and producing ...

Method And Device For Generating Superheated Steam From A Working Medium

A method and a device for generating superheated steam from a working medium, which includes the following steps: feeding of a working medium in the liquid phase to a specific heating tube and temperature regulation of the specific heating tube. Furthermore, the specific heating tube is temperature-regulated with a defined amount of thermal energy, as a result of which superheated steam is formed in the specific heating tube from the working medium fed in the liquid phase, the superheated steam then departing from the specific heating tube. 1. A method for generating superheated steam from a working medium , the method comprising the following steps:feeding of a working medium in the liquid phase to a specific heating tube andtemperature regulation of the specific heating tube,{'b': '54', 'wherein the specific heating tube is temperature-regulated with a defined amount of thermal energy, as a result of which superheated steam is formed in the specific heating tube () from the working medium fed in the liquid phase, said superheated steam then departing from the specific heating tube.'}2. The method according to claim 1 , wherein the working medium is preheated before it is fed to the specific heating tube.3. The method according to claim 2 , wherein the working medium is brought to an essentially constant temperature level in the course of the preheating and passed on to the specific heating tube at the essentially constant temperature level.458. The method according to claim 1 , wherein the defined amount of thermal energy is made available by the exhaust gas volume flow of a burner () operated with a liquid or gaseous fuel.5. The method according to claim 1 , wherein the preheating of the working medium takes place with the aid of the exhaust gas volume flow.6. The method according to claim 1 , wherein an actual temperature level of the superheated steam is detected and/or ascertained and the defined amount of thermal energy is constituted by taking account of the ...

LARGE SCALE COST EFFECTIVE DIRECT STEAM GENERATOR SYSTEM, METHOD, AND APPARATUS

Embodiments of the present disclosure can include a system for generating steam. The system can include a direct steam generator configured to generate saturated steam and combustion exhaust constituents. A close coupled heat exchanger can be fluidly coupled to the direct steam generator, the close coupled heat exchanger can be configured to route the saturated or superheated steam and combustion exhaust constituents through an exhaust constituent removal system. The system can include an energy recovery system that reclaims the energy from the exhaust constituents. 1. A system for generating steam , comprising:a direct steam generator configured to generate saturated steam and combustion exhaust constituents;a close coupled heat exchanger fluidly coupled to the direct steam generator, the close coupled heat exchanger configured to route the saturated or superheated steam and combustion exhaust constituents through an exhaust constituent removal system; andan energy recovery system that reclaims the energy from the exhaust constituents.2. A system for generating steam , comprising:a direct steam generator configured to generate saturated or superheated steam and combustion exhaust constituents;a close coupled heat exchanger fluidly coupled to the direct steam generator, the close coupled heat exchanger configured to route the superheated or saturated steam and combustion exhaust constituents through an exhaust constituent removal system; andan energy recovery system that reclaims the energy from the exhaust constituents.3. A system for generating steam , comprising:a direct steam generator configured with counter rotating hydrocyclones to generate saturated or superheated steam and combustion exhaust constituents;a close coupled heat exchanger fluidly coupled to the direct steam generator, the close coupled heat exchanger configured to route the saturated or superheated steam and combustion exhaust constituents through an exhaust constituent removal system; andan ...

ARRANGEMENT AND METHOD IN SODA RECOVERY BOILER

An arrangement and a method in a soda recovery boiler, in a furnace () of which recovery boiler there are arranged screen tubes () and which recovery boiler comprises a second pass () in which is arranged at least one superheater (′). The second pass () is arranged for being cooled with cooling medium coming from the screen tubes (). 114-. (canceled)15. An arrangement in a soda recovery boiler , in a furnace of which recovery boiler there are arranged screen tubes and which recovery boiler comprises a second pass ,in which second pass is arranged at least one superheater,the second pass being cooled with cooling medium coming from the screen tubes.16. The arrangement of claim 15 , comprising a second pass ash hopper which comprises front wall cooling pipes and/or rear wall cooling pipes and that said cooling pipes are connected to receive cooling medium from the screen tubes.17. The arrangement of claim 16 , wherein the second pass ash hopper comprises an ash hopper supply header that is arranged in the lower part of the ash hopper and connected with a connection pipe to the screen tubes to receive cooling medium and to distribute the cooling medium into said front wall cooling pipes and/or rear wall cooling pipes.18. The arrangement of claim 16 , wherein the cooling pipes of the ash hopper form a gastight front and/or rear wall of the ash hopper and that higher up they are arranged to provide grid tubes so as to allow flue gases to pass through.19. The arrangement of claim 18 , wherein the cooling pipes form a gastight ceiling for the second pass and that they are connected via a collection header to a drum.20. The arrangement of claim 17 , wherein the cooling pipes of the ash hopper form a gastight front and/or rear wall of the ash hopper and that higher up they are arranged to provide grid tubes so as to allow flue gases to pass through.21. The arrangement of claim 20 , wherein the cooling pipes form a gastight ceiling for the second pass and that they are ...

SORBENT UTILIZATION IMPROVEMENT BY SELECTIVE ASH RECIRCULATION FROM A PARTICULATE COLLECTOR

Various embodiments of a system for the removal of particulate emissions from an electric generating unit are provided, comprising: a gas producer; a primary particulate collector unit including: a primary collection hopper field each including at least one primary collection hopper, wherein each primary collection hopper includes a primary collection hopper outlet, each primary collection hopper outlet fluidically connected to a particulate discharge duct; a flue duct inlet oriented upstream of the at least one primary collection hopper field; a flue duct outlet oriented downstream of the primary collection hopper field; wherein the gas producer is fluidically connected to the primary particulate collector unit by a flue duct; and a particulate recirculation duct fluidically connected at a first end to the primary collection hopper and/or the particulate discharge duct, and fluidically connected at a second end to the flue duct upstream of the primary particulate collector unit. 1. A system for the removal of particulate emissions from an electric generating unit , comprising:a gas producer; [ wherein each primary collection hopper includes a primary collection hopper outlet, and', 'wherein each primary collection hopper outlet is fluidically connected to a particulate discharge duct;, 'at least one primary collection hopper field, each primary collection hopper field including at least one primary collection hopper,'}, 'a flue duct inlet oriented upstream of the at least one primary collection hopper field; and', 'a flue duct outlet oriented downstream of the at least one primary collection hopper field;, 'a primary particulate collector unit includingwherein the gas producer is fluidically connected to the primary particulate collector unit by a flue duct; anda particulate recirculation duct fluidically connected at a first end to at least one of the at least one primary collection hopper and the particulate discharge duct, and fluidically connected at a second ...

Gas turbine exhaust heat recovery plant

A gas turbine exhaust heat recovery plant includes a plurality of gas turbine exhaust heat recovery devices that have a gas turbine and an exhaust heat recovery boiler for generating steam by recovering exhaust heat of the gas turbine, a steam-utilizing facility that utilizes the steam generated by the exhaust heat recovery boiler, and an inter-device heat medium supply unit capable of supplying a portion of water heated or a portion of the steam generated by at least one of the gas turbine exhaust heat recovery devices out of the plurality of gas turbine exhaust heat recovery devices, to the other gas turbine exhaust heat recovery device.

METHOD FOR CONTROLLING A RECOVERY BOILER

The method in a recovery boiler comprises estimating the first melting temperature Tof the fly ash depositing on heat transfer surfaces, the estimating being based on potassium (K) content of the fly ash; measuring or estimating the temperature Tof superheated steam; evaluating a temperature difference Tbetween the first melting temperature Tand the temperature Tof the superheated steam, the temperature difference Tproviding an estimate of the risk of corrosion; and selecting a control action for influencing the temperature difference T. Alternatively or additionally, the method comprises estimating the sticky temperature Tof the fly ash depositing on heat transfer surfaces, the estimating being based on potassium (K) and chlorine (Cl) contents of the fly ash; measuring or estimating the temperature Tof the flue gases; evaluating a temperature difference Tbetween the sticky temperature Tand the temperature Tof the flue gases; the temperature difference Tproviding an estimate of the risk of plugging; and selecting a control action for influencing the temperature difference T. 1. A method for controlling a recovery boiler , the recovery boiler comprising a furnace for black liquor combustion , and a superheater area having one or more superheaters recovering heat from a stream of flue gases coming from the furnace; the method comprising:{'sub': '0', 'estimating the first melting temperature Tof the fly ash depositing on heat transfer surfaces of the superheater area, the estimating being based on potassium (K) content of the fly ash;'}{'sub': 'ss', 'measuring or estimating the temperature Tof superheated steam circulating in or output from the superheater area, or, one or more superheaters of the superheaters;'}{'sub': D1', '0', 'ss', 'D1, 'evaluating a temperature difference Tbetween the first melting temperature Tand the temperature Tof the superheated steam, the temperature difference Tproviding an estimate of the risk of corrosion at the superheater area or said ...

Fluidized bed reactor arrangement

The present invention relates to a fluidized bed reactor arrangement (10), in which a fluidized bed reactor comprises at least a bottom portion (12), a roof portion (16) and at least one side wall (14.1 ) vertically extending between the bottom portion and the roof portion, said side wall being arranged inclined at the lower portion in such a manner that the cross-section of a reaction chamber (20) of the reactor diminishes towards the bottom portion, and which fluidized bed reactor arrangement comprises a heat exchange chamber (30), in which said in- dined side wall (14.1 ) forms a partition wall between a heat exchange chamber and the reaction chamber (20). The rear wall (34) of the heat exchange chamber is connected to the side wall (14.1 ) of the reaction chamber (20) from the upper portion of the rear wall at a connection area (36) in such a manner that the direction thereof aligns with the direction of the side wall at least at the connection (36).

一种双压过热及自产蒸汽的燃气锅炉

本发明涉及一种双压过热及自产蒸汽的燃气锅炉，包括绝热炉膛，绝热炉膛后方布置燃烧器，绝热炉膛中上部布置再循环分配烟管，绝热炉膛出口处水平段依次布置高压过热器和中压过热器，高压过热器管束前布置测温装置，尾部竖井从上到下依次布置中压蒸发器、空气预热器、低压凝水加热器。本发明巧妙地布置锅炉各个部件的位置，尤其是煤气燃烧器，使双压过热蒸汽锅炉结构紧凑，外形美观。本发明设置烟气再循环装置控制进入高压过热器处烟气温度低于700℃，保护高压过热器高温处管束不过烧，避免炉管过烧爆裂。本发明设置烟气再循环装置，增加烟气流量，提高各受热面的烟气流速，强化各受热面的传热效果。

Continuous vertical-to-angular tube transitions

一种蒸气产生器系统，包括：由许多管子形成的立式炉子单元，一部分管子具有上管端和下管端并相对于水平面成锐角延伸，一部分管子从下管端垂直向下延伸，以及一部分管子从上管端向上垂直延伸。所提供的附加的下垂直管子和上垂直管子，与分别从下端和上端垂直延伸的管子是共面的、平行的，并在其中交替安置和均匀分布的。提供的装置使流体通过炉子单元区域，并将流体的一部分转化为蒸气，或者对流体加热。

Arrangement and method in soda recovery boiler

Gas fired-boiler

本发明提供了燃气锅炉，其能解决现有工业生产产生的乏汽直接排放而造成的环境污染、热能浪费损失的问题。其包括锅炉本体、锅筒、燃烧器，锅炉本体上安装有燃烧器，锅炉本体内设有燃烧室和过热区烟道，燃烧器位于所述燃烧室的进口侧端，过热区烟道内设置有过热器，燃烧室的出口侧与过热区烟道联通，过热区烟道的出口端通过连接烟道连接脱硝装置，脱硝装置连接节能器，其特征在于：其还包括乏汽进口集箱，乏汽进口集箱上设有乏汽入口，锅筒与乏汽进口集箱通过饱和蒸汽输出管路连接，乏汽进口集箱与过热器管连接，过热器连接主蒸汽出口集箱。

Continuous vertical-to-angular tube transitions

一种蒸气发生器系统，包括：由许多管子形成的立式炉子单元，一部分管子具有上管端和下管端并相对于水平面成锐角延伸，一部分管子从下管端垂直向下延伸，以及一部分管子从上管端向上垂直延伸。所提供的附加的下垂直管子和上垂直管子，与分别从下端和上端垂直延伸的管子是共面的、平行的，并在其中交替安置和均匀分布的。提供的装置使流体通过炉子单元区域，并将流体的一部分转化为蒸气，或者对流体加热。

Hybrid of solar thermal system and combined cycle power plant

PURPOSE: A hybrid-type solar energy combined-cycle power plant is provided to promote power generation efficiency by producing steam regardless of the influence of weather or season. CONSTITUTION: A hybrid-type solar energy combined-cycle power plant comprises a waste-heat recovery boiler body(10), a primary overheat pipe(20), a secondary overheat pipe(30), a solar heat steam overheat pipe(40), a steam mixer(60), and a steam flow rate control valve(51). The waste-heat recovery boiler body generates the steam using the waste heat of the exhaust gas from a gas turbine. The primary overheat pipe is installed in the waste-heat recovery boiler body and overheats the steam generated from a boiler drum. The secondary overheat pipe connects to the primary overheat pipe through a connection pipe(22). The solar heat steam overheat pipe is installed in the waste-heat recovery boiler body to be positioned between the primary overheat pipe and the secondary overheat pipe. The steam mixer connects to the solar heat steam overheat pipe and the secondary overheat pipe. The steam flow rate control valve connects the solar heat steam overheat pipe and the primary overheat pipe.

Smoke baffle arrangement structure of double reheat boiler and reheat steam temperature control method

本发明公开了一种二次再热锅炉的烟气挡板布置结构和再热汽温控制方法，二次再热锅炉尾部烟道分隔为三个相互独立且并列的烟道，分别为一次低再烟道、二次低再烟道和低过烟道；在一次低再烟道的出口处布置有一次低再烟道挡板，在二次低再烟道的出口处布置有二次低再烟道挡板；一次低再烟道和二次低再烟道在出口处汇合形成汇合烟道，在一次低再烟道挡板和二次低再烟道挡板下游的汇合烟道出口处布置有低再主烟气挡板；在低过烟道出口处布置有低过烟气挡板。本发明通过增加低再主烟气挡板，使其开度追踪一次高再与二次高再出口汽温平均值，将原本三参数耦合调节问题解耦为两组双参数调节问题，降低了控制系统操作难度，提高了控制系统响应和收敛速度。

Boiler and method of retrofitting burner for boiler

연료를 연소시키기 위해 실질적 순수 산소 분위기를 사용함으로써, 보다 적은 온실 가스를 생성하도록 설계 또는 개조된 보일러(10). 주 버너(14) 및 워터 튜브(13a)를 갖는 보일러가 제공된다. 이 보일러는 보일러 증기 출구 아래 및 두 버너 영역(15) 위의 영역(26)에 필요에 따라 배치된 적어도 하나의 보조 버너(24)Fmf 포함한다. 보조 버너는 증기의 품질 및 온도를 증가시키기 위한 열 또는 에너지를 제공한다. 보조 버너는 가압된 공기가 아닌 산소의 사용의 결과로서 보일러를 통한 배기 가스의 감소된 유량을 통해 손실된 열 및 에너지를 제공한다. 버너, 워터 튜브, 보일러 Boiler 10 designed or modified to produce less greenhouse gases by using a substantially pure oxygen atmosphere to burn fuel. A boiler having a main burner 14 and a water tube 13a is provided. The boiler comprises at least one auxiliary burner 24 Fmf disposed as necessary in the zone 26 below the boiler steam outlet and above the two burner zones 15. Auxiliary burners provide heat or energy to increase the quality and temperature of the steam. Auxiliary burners provide lost heat and energy through a reduced flow rate of exhaust gas through the boiler as a result of the use of oxygen rather than pressurized air. Burner, Water Tube, Boiler

Method and system for cogenerating gas-steam based on gasification and methanation of biomass

A method for cogenerating gas-steam based on gasification and methanation of biomass. The method includes: 1) mixing oxygen and water vapor with biomass, transporting the resulting mixture via a nozzle to a gasifier, gasifying the biomass to yield crude gasified gas, and transporting superheated steam having a pressure of 5-6 MPa resulting from sensible heat recovery to a steam turbine; 2) adjusting the hydrogen/carbon ratio of the crude gasified gas generated from step 1) to 3:1, and eluting the crude gasified gas whereby yield purified syngas; 3) introducing the purified syngas from step 2) to a methanation unit and transporting intermediate pressure superheated steam generated in the methanation unit to the steam turbine; and 4) concentrating methane of synthetic natural gas containing trace nitrogen and water vapor obtained from step 3) through pressure swing adsorption.

Waste-to-energy plant

A Waste-to-Energy plant comprising: an incineration chamber in which waste is combusted generating hot flue gas; at least one economizer to heat feedwater using heat from the hot flue gas; at least one evaporator to produce steam from the heated feedwater using heat from the hot flue gas; at least one steam drum to receive the heated feedwater from the at least one economizer and serve as a supply for the heated feedwater, the at least one steam drum further to receive the steam from the at least one evaporator and serve as a supply for the steam; and at least one superheater to receive the steam from the at least one steam drum and to further heat the steam to a superheated steam using heat from the hot flue gas; wherein the incineration chamber comprises a first PCM-wall and a second PCM-wall each comprising a plurality of pipes and a layer of PCM provided between the pipes and the incineration chamber, the plurality of pipes in the first PCM-wall receiving the heated feedwater from the steam drum and producing additional steam in the plurality of pipes in the first PCM-wall using radiant heat from the incineration chamber, and the second PCM-wall additionally heating steam in the plurality of pipes of the second PCM-wall using radiant heat from the incineration chamber to.

Flow guide equipment of flue gas for heat exchange boiler

본 발명은 보일러 열교환을 위한 배가스 흐름 유도 장치에 관한 것으로, 더욱 상세하게는 연소로의 열에너지가 사용되는 폐열 수관보일러의 열교환 효율을 개선하기 위하여 다수 개의 수관이 설치되는 과열기부 영역에 타공이 형성되는 타공판을 설치하고, 배가스가 곡선 구간을 지나면서도 원심력이나 관성에 의한 편류가 방지될 수 있도록 하는 보일러 열교환을 위한 배가스 흐름 유도 장치에 관한 것이다. 본 발명에 따른 보일러 열교환을 위한 배가스 흐름 유도 장치는, 고형연료가 연소 되는 공간인 연소로(10)에서 발생 되는 배가스(30)가 유입되어 상기 배가스(30)의 열을 통하여 증기(50)를 발생시키는 에너지회수부(100); 및 상기 에너지회수부(100)의 내부에 구비되어 상기 에너지회수부(100)의 내부에서 유동 되는 배가스(30)가 유동 되는 과정에서 원심력이나 관성에 의해 한쪽으로 편중되는 배가스(30)의 편류를 방지하고, 배가스(30)가 고르게 확산 되면서 유동 될 수 있도록 하는 편류방지부(200);를 포함한다.

Boiler and its improved method

本发明公开了一种锅炉，其包括水冷壁，围成炉膛，用于加热水和产生蒸汽；过热器系统，设置在炉膛上方，包括用于加热蒸汽的第一过热器；和附加过热器，设置在炉膛内，用于加热蒸汽。本申请还提供了一种改进锅炉的方法，其中锅炉包括置于炉膛上方的具有第一过热器的过热器系统，该方法包括：在所述炉膛内的水冷壁上安装附加过热器；连接所述过热器系统的输出至所述附加过热器的入口；和连接所述附加过热器的出口至汽轮机发电。

Energy-concerving and environment-protective heat abstractor that uses

本发明公开了一种节能环保用散热装置，包括炉体，所述炉体一侧设有送料装置，所述炉体内壁固定设有水冷壁，所述炉体一侧外壁固定设有下降管，所述下降管上端固定设有汽包，所述炉体上端内壁固定安装有一级过热器，所述炉体上端一侧固定设有排烟管道，所述排烟管道呈Z字形结构，所述排烟管道上端内壁固定设有二级过热器，所述排烟管道中部设有预热装置，本申请可以根据炉内温度自动调节进气量和添加煤炭量，以保证炉内温度稳定；本申请不仅能够提高水冷壁内水蒸发的效率，而且能够对排烟管道内的烟气进行降温，从而能够减少烟气中的热量流失在空气中，对周围生态环境进行保护，并且能够利用烟囱排出烟的动能进行发电，以减少资源的浪费。

Gas-steam efficient cogeneration process and system based on biomass gasification and methanation

The present invention provides a gas-steam efficient cogeneration process and system based on biomass gasification and methanation, comprising a biomass gasification unit, a transformation unit, a purification unit, a methanation unit, and a methane concentration unit. The gasification unit utilizes a locally-external constant high-temperature heat source airflow bed which can remarkably improve effective gas compositions of CO and H2 and improve biomass gasification efficiency. The gasification unit can greatly reduce the quantity of tar produced at a high temperature, improves the carbon conversion rate, and removes investment on a tar removing device. In the process of methanation, the conversion efficiency of CO reaches 100%, and the conversion efficiency of H2 reaches 99%. Also, a large amount of by-product intermediate pressure superheated steam is produced, and power consumption of a circulation compressor in the traditional methanation reaction is reduced. The present invention has the advantages that biomass energy can be converted into clean, high-calorific-value, and convenient-for-use natural gas, and a large amount of heat released in the biomass gasification and methanation reaction can be efficiently recycled through a mode of producing high-quality superheated steam.

Method and installation of cogenertion in heat plants, especially those equipped with water-tube boilers

The method according to the invention characterized in that while maintaining thermal power of the water-tube boiler (1), water stream is decreased in relation to the nominal stream thus water heating increases and then heated water is throttled in the valve (16) to the saturation temperature - the temperature of formation, generating saturated steam, whereby the saturated steam after being overheated in the diaphragm heat exchanger (19), at the boiler flue gas exhaust pass (1), to the temperature above the saturation temperature, feeds steam condensing turbine (20) and a wet steam exiting the turbine (20) after condensation in condenser fed (22) by the return water from the external circuit of distribution (11) and then cooled in the air heaters (24), is then returned by pipeline (12) to external circuit of distribution (11). Cogeneration installation in heat plants, especially those equipped with water-pipe boilers, in which in the water pipeline behind the boiler on the inlet to the steam and water separator vessel an expansion valve is installed, and the steam and water separator is connected in the lower part with the water drainage pipeline and in the upper part with a saturated steam pipeline, while the steam pipeline connects a series: the diaphragm steam superheater placed in the course of exhaust pass from the boiler, the steam condensing turbine and the condenser, according to the invention is characterized in that has a diaphragm condenser (22) (22-1) connected condensate pipeline (25) to the pump (23) via an air heater (24) and to an intermediate water tank (13) from which the condensate drainage pipeline (12) with a pump (14) connects with the return water pipe from the external circuit of distribution (11), the diaphragm condenser (22-1) is equipped with a cooling circuit consisting of a control valve (9) and a pipeline (10) connected by a flow diaphragm condenser (22-1) with a return water distribution pipe (8).

Power plant heating water heating system

Economizer temperature governing system that unit start-up process denitration was put into

本发明公开了一种机组启动过程脱硝投入的省煤器水温调节系统，包括屏式过热器、高压主汽阀、高压调节阀、高压缸、高压旁路、低温再热器、调整阀、第二电动阀、1号高压加热器、高压缸排汽逆止阀、低温再热器、二段抽汽逆止阀、第一电动阀、2号高压加热器、一段抽汽逆止阀、一段抽汽电动阀、高温再热器、高压调节阀、中压主汽阀、中压缸、低压旁路、凝汽器、三段抽汽逆止阀、三段抽汽电动阀、3号高压加热器、四段抽汽逆止阀、四段抽汽电动阀、辅汽联箱、二级省煤器及脱硝反应器，该系统能够降低启动阶段的氮氧化物排放。

Steam generation system

본 발명은 물을 증기로 변환시키기위한, 상부단 ·하부단을 가지고 수평면에 대하여 미소각으로 연장하며, 상부 ·하부 튜브단으로부터 위, 아래로 수직으로 연장하는 복수의 튜브들로 형성 되어진 직립 가열로를 포함하고, 각각의 상하단으로 부터 수직으로 연장하는 튜브들 사이에 서로 동일 면상에 있고, 평행하며 균일하게 배열되어 있고 서로 교차하는 부가적 하부, 상부 수직 튜브가 제공되어지며, 첫째 부가 하부수직 튜브를 통하고, 다음으로 경사진 튜브를 통하고 부가 상부수직 튜브를 통하게 해서 유체를 증기로 변환 시키거나, 열을 가하기위해 가열로부의 전체에 걸쳐 유체를 전달하는 수단을 제공하는 것을 특징으로 하는 증기 발생 시스템이다. The present invention is an upright heating formed of a plurality of tubes extending at an angle with respect to a horizontal plane with an upper end and a lower end, and vertically extending from an upper and a lower tube end to convert water into steam. Between the tubes extending vertically from each of the upper and lower ends, there is provided an additional lower, upper vertical tube which is coplanar with each other, parallel and uniformly arranged and intersecting with each other, the first additional lower vertical Providing a means for transferring the fluid throughout the furnace section for converting the fluid to steam or for applying heat through the tube and then through the inclined tube and through the additional upper vertical tube. Steam generation system.

Water vaporizer with intermediate steam superheating pass

The present invention provides a water vaporizer including a first flow path connected to a water inlet, a second flow path for receiving superheated water vapor from the first flow path and being connected to a vapor outlet to exhaust the superheated water vapor, and a third flow path extending between an exhaust inlet and an exhaust outlet and being oriented to transfer heat from an exhaust flow to the superheated water vapor. The water vaporizer can also include a first convoluted fin positioned along the second flow path, and a second convoluted fin positioned along the second flow path adjacent to and separated from the first fin to define a gap extending between the first and second fins along a length of the first fin in a direction substantially parallel to the exhaust flow along the third flow path.

High-temperature high-dust content high-corrosion waste heat boiler of metallurgical industry

本发明为一种冶金行业高温高含尘高腐蚀性余热锅炉，冷却室Ⅰ、冷却室Ⅱ中分别装设有高温屏式过热器和低温屏式过热器，冷却室Ⅲ、冷却室Ⅳ、冷却室Ⅴ中分别装设有对流蒸发管屏Ⅰ、对流蒸发管屏Ⅱ、对流蒸发管屏Ⅲ，屏式受热面均纵向排列在各冷却室，高温辐射沉降室、各冷却室由膜式水冷壁围合而成且采用交错连通方式，各受热面下部设置落灰斗，收集的灰尘由排渣机输送到炉外。冶金生产过程中产生的高含尘高温烟气依次进入高温辐射沉降室、多级冷却室、省煤器对流管束进行热能回收，余热锅炉产生的过热蒸汽供企业生产使用。本发明具有制造工艺简单、维修方便、运行安全稳定，适宜在冶金及化工行业高含尘高温烟气余热回收中推广使用。

Method and apparatus for producing superheated steam from a working medium

Circulation Bed Boiler for Conbution Clorime component Solid Fuel

An objective of the present invention is to provide a circulating fluidized-bed boiler which widens a main steam temperature control range in a thermal power generation facility which generates power with coal to satisfy a required main steam temperature even in a partial load, reduces the heating surface area of a superheater to reduce the size and weight, and is effective in chlorine corrosion prevention of a superheater tube. The circulating fluidized-bed boiler eliminates an empty path, and arranges an evaporator, a superheater, and a coal cutter air preheater sequentially arranged after a solid separator in a column in a longitudinal convention cage. A bypass pipe with an added bypass damper is installed on the convention cage to adjust the required temperature of main steam by increasing and decreasing a branch amount of combustion gas flowing into the bypass pipe. An evaporator, an upper and a lower superheater, a coal cutter, and an upper and a lower air preheater are installed in the convention cage with a reduced diameter and an elongated length.

Device and method for boiler superheat temperature control.

Una caldera disenada o modernizada para producir menos gases de efecto invernadero al usar una atmosfera de oxigeno sustancialmente puro, en la cual se quema el combustible. Se proporciona la caldera que tiene un quemador primario y tubos de agua. La caldera comprende ademas al menos un quemador secundario localizado, como se necesite, en una zona por arriba del area del quemador primario y por debajo de la salida de vapor de la caldera. El quemador secundario que proporciona calor o energia para incrementar la temperatura y calidad del vapor. El quemador secundario que proporciona la perdida de calor o energia a traves de la velocidad disminuida de flujo de los gases de escape a traves de la caldera como resultado del uso de oxigeno en lugar de aire presurizado.

Annular superheating element for firetube boilers

An annular superheater element (10) for superheating steam within firetubes (22) of firetube boilers comprising concentric inner and outer tubes and a specially designed return end cap (16). Saturated steam introduced into the outer tube (14) of said superheater element is superheated while traveling towards the burner end of the tube, is directed into the inner tube (18) by means of the return end cap (16), and travels away from the burner side of the element (10) where it is exhausted for use as superheated steam. While traversing the inner tube, the superheated steam gives off heat energy through the wall of the inner tube to the steam traveling in the outer tube towards the burner end of the tube, conserving energy. The improved superheater element produces superheated steam more efficiently, with less fuel, and steam capable of doing more work, than conventional superheater elements and can be used to retrofit existing firetube type boilers.

Fluidized bed reactor arrangement

A fluidized bed reactor arrangement includes a bottom portion and a roof portion. A reaction chamber is defined by at least one side wall extending between the bottom portion and the roof portion. The at least one side wall includes a vertically extending portion having a lower end and a lower portion, which lower portion is inclined in such a manner that a cross section of the reaction chamber decreases towards the bottom portion. A heat exchange chamber, outside of the reaction chamber, is at the lower portion of the at least one side wall. The lower portion of the at least one side wall forms a partition wall between the heat exchange chamber and the reaction chamber. The heat exchange chamber extends from the partition wall to a rear wall of the heat exchange chamber.

Method and device for providing super-heated steam with heat generated in boiler of incineration facility

【課題】本発明は、焼却設備のボイラにおいて発生される熱によって過熱蒸気をもたらすための方法を提供する。 【解決手段】予過熱蒸気が複数の最終過熱器管（２４）の形状で存在する最終過熱器（２２）へ供給され、最終加熱器管を通して、予加熱蒸気が案内されると共にその過程で最終的に過熱され、最終過熱器管（２４，２４’，２４”）は、ボイラ（３）の壁要素（２８）及びボイラ（３）内に配置される隔壁（３０）の少なくとも一方内に形成される少なくとも一つの空洞（２６，２６’，２６”）内において少なくとも部分的に配置され、空洞は、耐火性材料層（３４）を介して少なくとも部分的にボイラ側を塞がれ、空洞を燃焼中に放出される燃焼排気が通る。本発明により、空洞（２６）は、二次媒体を通して流し、二次媒体は、その過程で耐火性材料層（３４）を介する燃焼排気からの熱伝達を介して加熱される。このように加熱される二次媒体は、二次媒体供給管（４４）を介して二次熱交換器（４２）へ供給される。 【選択図】図２

Steam unit for generating superheated steam in a waste incineration unit

High-parameter waste incineration boiler with reheating function

本发明涉及用于发电和供汽的垃圾焚烧锅炉，具体为一种带再热的高参数垃圾焚烧锅炉，其能够有效提高锅炉的热效率及电厂的整体发电效率，大大提高电厂的经济效益，其包括炉膛，所述炉膛顺次连通第一垂直通道、两个垂直燃烬室、水平烟道和尾部垂直烟道，所述水平烟道内顺次布置有再热器、高温过热器、中温过热器和低温过热器，所述再热器设置有喷涂层或所述再热器的材质为防腐材料，所述尾部垂直烟道内设置有省煤器。

Boiler

본 고안은 장거리 수송에 용이하고 터빈 등과 같이 초기부하가 많이 소요되는 곳에 사용할 수 있는 과열증기의 보일러이고, 수실에서 생긴 증기를 별도의 증기배관을 통해 후부연실의 가열배관을 거치면서 습기가 제거된 과열증기로 배출시켜 사용하므로 수분에 의한 부식 및 기타 피해가 줄어들고 증기의 소비량도 감소하여 연료를 절약할 수 있는 개량된 횡형 보일러에 관한 것으로, 노통(1)후방에 그것보다 큰 가스단면적을 가진 상하부 수관(4, 5) 및 가열수관(6)을 설치하여 후부연실로 되어 있는 횡형 보일러에 있어서, 상기 노통(1)은 후방으로 가스의 배출부(3)가, 전방으로 연관(2)을 통한 다른 배출부(3′)가 각각 설치되고, 수실(7)상에 증기가 배출되는 증기배관(8)을 통해 입구(21)로, 이 입구(21)가 후부연실내의 가열배관(20)을 통해 출구(22)가 각기 설치되어 과열증기가 배출된 것을 특징으로 하는 보일러이다. The present invention is a boiler of superheated steam that can be used for long distance transportation and can be used where a lot of initial load is required, such as a turbine. It is an improved horizontal boiler which saves fuel by reducing the corrosion and other damage caused by water and reducing the consumption of steam by using it as exhausted by superheated steam. In a horizontal boiler having water pipes (4, 5) and heated water pipes (6) arranged in a rear combustion chamber, the furnace (1) has a gas discharge section (3) at the rear and a tube (2) at the front. Different outlets 3 'are respectively provided, and through the steam pipe 8 through which steam is discharged on the water chamber 7, to the inlet 21, the inlet 21 being heated pipe 20 in the rear combustion chamber. Through the outlets 22 Value is a boiler, characterized in that the superheated steam is discharged.

Fluidized bed incinerator grading cooling module

本发明公开了一种流化床焚烧炉分级降温模块，其特征在于：包含锅筒、上升管、下降管、尾部烟道、一级降温模块、二级降温模块、模块连接管、省煤器、炉膛和过热器，炉膛的上端与尾部烟道的一端连接，一级降温模块、过热器、二级降温模块和省煤器依次设置在尾部烟道内，一级降温模块下端通过模块连接管与二级降温模块上端连接，上升管和下降管的一端分别与锅筒连接，上升管的另一端连接一级降温模块的上端，下降管的另一端连接二级降温模块的下端。本发明降低对焚烧炉内过热器腐蚀和省煤器的变形、积灰，延长焚烧炉的使用寿命。

Process for cooling a combustion plant's flue gases in a heat exchanger in a steam generating plant

WATER HEATING SYSTEM FOR A POWER PLANT

Scavenging device of pipe group of throttle type water separation reheater

내용 없음. No content.

Method and system for cogenerating gas-steam based on gasification and methanation of biomass

A system for cogenerating gas-steam based on gasification and methanation of biomass, the system including a gasification unit, a shift unit, a purification unit, a methanation unit, and a methane concentration unit. A waste heat boiler is provided in an upper part of a gasifier of the gasification unit. The methanation unit includes a first primary methanation reactor, a second primary methanation reactor, a first secondary methanation reactor, and a second secondary methanation reactor connected in series. An outlet of the second primary methanation reactor is provided with two bypasses, one of which is connected to an inlet of the first primary methanation reactor, the other of which is connected to the first secondary methanation reactor. The second secondary methanation reactor is connected to the methane concentration unit.

Arrangement and procedure in boiler recovery soda

Waste heat recovery apparatus of steam boiler

본 발명은 증기보일러의 폐열 회수장치에 관한 것이며, 상세하게는 연도에 다기능 열교환기를 설치하여 과열기, 온수가열기 및 절탄가의 기능을 모두 충족 할 수 있도록한 증기 보일러의 폐열 회수장치에 관한 것으로서, 환경공해를 저감하고, 구조가 단순화되며, 다용도에 널리 사용함으로써 수요자의 욕구를 충족토록 한 것이다. 본 발명은 연도(12)에 다기능 열교환기(21)를 설치하여 상기 다기능 열교환기(21)의 입구와 포화증기 주공급관(13)의 보일러 통체(11)의 연결부 근처에 포화증기 지관(22)을 연결하며, 상기 다기능 열교환기(21)의 출구에 과열증기 도관(23)을 연결한 과열기(20)와; 온수저장탱크(31)와 상기 포화증기 지관(22)에 가열용 급수도관(32)을 연결하고, 상기 과열증기 도관(23)과 상기 온수저장탱크(31)에 온수도관(33)을 연결하며, 상기 온수저장탱크(31)에 저장된 가열용 급수가 다기능 열교환기(21)를 순환하면서 가열되는 온수가열기(30)와; 급수탱크(41)와 상기 포화증기 지관(22)에 급수관(42)을 연결하고, 상기 과열증기도관(23)과 수실에 예열급수도관(43)을 연결하여서, 상기 급수탱크(41)내의 급수가 다기능 열교환기(21)를 순환하면서 예열되는 절탄기(40)와; 상기 포화증기 주공급관(13)의 포화증기 지관(22)의 연결부의 후방, 포화증기 지관(22), 과열증기 도관(23)의 말단, 가열용 급수도관(32), 온수도관(33), 급수관(42) 및 예열급수도관(43)에 설치한 밸브(51A~51G); 를 포함하여 구성한 것이다. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste heat recovery apparatus for a steam boiler, and more particularly, to a waste heat recovery apparatus for a steam boiler in which a multifunctional heat exchanger is installed in a flume to meet the functions of a superheater, It is intended to reduce the environmental pollution, simplify the structure, and widely use it for versatility to meet the needs of the consumer. The present invention is characterized in that a multifunctional heat exchanger 21 is installed in the flue 12 and a saturated steam branch 22 is provided near the connection of the inlet of the multifunctional heat exchanger 21 and the boiler cylinder 11 of the saturated steam main supply pipe 13, And a superheater (20) connecting the superheated steam conduit (23) to the outlet of the multifunctional heat exchanger (21); A heating water supply pipe 32 is connected to the hot water storage tank 31 and the saturated steam pipe 22 and a hot water pipe 33 is connected to the superheated steam pipe 23 and the hot water storage tank 31 A hot water heater 30 heated by the heating water stored in the hot water storage tank 31 while circulating through ...

Water vapor interception wrapping layer coking prevention vertical biomass boiler suitable for salix mongolica

本发明公开了一种适用于沙柳木的水汽拦截防裹层结焦立式生物质锅炉，其结构包括：防滑底板、支撑底座、物料入口、排烟管、烟气处理过热箱、生物质锅炉，防滑底板的上端与支撑底座的下端相贴合，本发明一种适用于沙柳木的水汽拦截防裹层结焦立式生物质锅炉，实现了在需要对沙柳木生物质进行加工处理时，通过拦截晃片与水气管的配合，具有将物料所含有的粘性飞灰与氧化钾拦截消除的作用，并且刷位凸块与供氧条驱使锅炉内炉膛出口烟温低于沙柳木灰熔点，从而使得所产生的黏性胶体便不易裹层结焦在过热管外，从而保证过热管至始至终都是处于光滑状态，对锅炉内的过热器件起到保护的作用。

Method for controlling recycling boiler

回收锅炉中的方法包括：估测沉积在传热表面上的飞灰的第一熔化温度T 0 ，该估测基于飞灰的钾(K)含量；测量或估测过热蒸汽的温度T SS ；估算第一熔化温度T 0 与过热蒸汽的温度T SS 之间的温度差T D1 ，该温度差T D1 提供对腐蚀风险的评估；以及选择用以影响温度差T D1 的控制行为。替代地或附加地，该方法包括：估测沉积在传热表面上的飞灰的粘性温度T STK ，该估测基于飞灰的钾(K)含量和氯(Cl)含量；测量或估测废气的温度T FG ；估算所述粘性温度T STK 与所述废气的温度T FG 之间的温度差T D2 ，该温度差T D2 提供堵塞风险的评估；以及选择用以影响温度差T D2 的控制行为。

Apparatus for generating reheat steam

The present invention relates to an apparatus for generating and supplying steam or mist in the form of reheat steam, and provides the apparatus for generating reheat steam comprising: a combustion chamber provided with a space portion having a specific volume and a burner which is installed at the center of the upper end of the inside of the combustion chamber; a steam chamber, which is provided with a space portion having a specific volume around the outer circumference of the combustion chamber, for heating for the first time using heat transferred from the combustion chamber, steam or dissipated mist at a specific temperature that is supplied from the outside; a plurality of steam-heating pipes, which are wound in the form of a coil inside the combustion chamber, for heating for the second time by means of flames generated from the burner, the steam or the mist supplied after being heated for the first time in the steam chamber, into reheat steam at a specific temperature; an exhaust chamber having a specific volume, which is formed around the outer circumference of the steam chamber and communicates with the combustion chamber, for discharging exhaust gas combusted in the combustion chamber through a gas exhaust pipe; and a heating chamber having a specific volume, which is formed around the outer circumference of the exhaust chamber, for heating steam or air supplied from the outside using heat transferred from the exhaust chamber.

Guide device for flue gas at outlet of coal-fired boiler furnace

本发明创造提供一种燃煤锅炉炉膛出口烟气导向装置，其包括若干组并行排列的导向调整装置，其中每组导向调整装置分别安装于后水冷壁管的后侧且位于折焰角的终端。所述导向调整装置为一个旋转角度可调的挡板机构Ⅰ或一个高度可调的挡板机构Ⅱ。所述旋转角度可调的挡板机构Ⅰ包括调节挡板、轴、曲柄、上支撑板和下支撑板。采用本发明创造，可改变低负荷运行时的水平烟道速度场，由于流经水平烟道及炉膛出口的烟气流速上下基本一致，因此使得过热器管上下全程受热，进而避免了局部超温爆管。

Boiler equipped with a superheater

A boiler ( 1 ) comprising at least: a furnace ( 2 ), in whose lower part the combustion used as the primary source of thermal energy of the boiler is configured to take place; devices ( 6 ) for supplying fuel into the furnace; devices ( 3, 7, 8, 26 ) for supplying combustion air into the furnace; one or more flue gas ducts ( 11 ); at least one chamber ( 17 ) accommodating at least one steam superheater ( 15 ) for recovering thermal energy. Said chamber is configured to allow a direct line of sight ( 16 ) between said superheater and said primary source, to enable the reception of thermal energy by means of thermal radiation. Said chamber is further configured to prevent the entry of said flue gases ( 19 ) to said superheater either totally or almost totally, to avoid the reception of thermal energy by convection.

Waste heat recovery system of high-temperature fluid in metallurgical process

本发明公开了一种冶金过程中高温流体的余热回收系统，包括旁路换热器、一体化过热器、给水泵和水箱；一体化过热器包括集汽器和过热器主体；集汽器上连通有输入管路和输出管路；过热器主体包括外壳、Ⅱ级受热片、Ι级受热片和旋转升降装置，外壳的两端为开口，Ⅱ级受热片设置于外壳内、输入端与给水泵连通，输出端通过旋转升降装置与输入管路连通，Ι级受热片设置于外壳内、一端通过旋转升降装置与输出管路连通、另一端通过旋转升降装置输出；旁路换热器与Ι级受热片并联；给水泵将水箱内水泵入Ⅱ级受热片，热交换后产出的汽水混合物汇入集汽器，再进入Ι级受热片再次热交换产出过热饱和汽输出。高效回收过程热能、又能解决环境热污染问题。

Waste-to-energy plant

A Waste-to-Energy plant comprising: an incineration chamber in which waste is combusted generating hot flue gas; at least one economizer to heat feedwater using heat from the hot flue gas; at least one evaporator to produce steam from the heated feedwater using heat from the hot flue gas; at least one steam drum to receive the heated feedwater from the at least one economizer and serve as a supply for the heated feedwater, the at least one steam drum further to receive the steam from the at least one evaporator and serve as a supply for the steam; and at least one superheater to receive the steam from the at least one steam drum and to further heat the steam to a superheated steam using heat from the hot flue gas; wherein the incineration chamber comprises a first PCM-wall and a second PCM-wall each comprising a plurality of pipes and a layer of PCM provided between the pipes and the incineration chamber, the plurality of pipes in the first PCM-wall receiving the heated feedwater from the steam drum and producing additional steam in the plurality of pipes in the first PCM-wall using radiant heat from the incineration chamber, and the second PCM-wall additionally heating steam in the plurality of pipes of the second PCM-wall using radiant heat from the incineration chamber to.

Small supercritical once-thru steam generator

A small supercritical once-through steam generator (OTSG) includes a radiant section (106) with a furnace coil (120), and a convection section downstream of the radiant section that includes a superheater (160) which is fluidically connected to the furnace coil. Optionally, the OTSG is devoid of a steam separator. An economizer (150) can also be included downstream of the superheater. Supercritical steam can be generated using the OTSG, for use, among other things, in enhanced oil recovery applications.

Method and device for producing superheated steam using the heat generated in the boiler of a combustion plant

Combustion device and power generation system able to internal flue gas recirculation

본 발명은 연소장치 및 발전 시스템으로서, 연소로; 상기 연소로 내 상부에 위치하는 과열기; 상기 연소로 하부의 측면에 위치하는 공간인 배가스 유동부 내에 위치하는 재열기; 상기 연소로 양측면에서 상기 과열기와 상기 배가스 유동부 사이에 위치하며, 경사지게 배치되는 버너;를 포함하는 연소장치 및 이를 포함하는 발전 시스템을 제공한다. The present invention is a combustion apparatus and a power generation system, comprising: a combustion furnace; A superheater located in the upper part of the combustion furnace; A reheater located in an exhaust gas flow part, which is a space located on a side of the lower part of the combustion furnace; It provides a combustion apparatus including; and a power generation system including the burner, which is located between the superheater and the exhaust gas flow unit on both sides of the combustion furnace and is disposed obliquely.

Tower boiler

Efficient nuclear energy utilization system and method

本发明公开了一种高效核能利用系统及方法，包括耦合用化石燃料锅炉，所述耦合用化石燃料锅炉将传统锅炉的水冷壁替换为汽冷墙式过热器；及用来调节锅炉炉膛不同区域火焰和烟气温度的烟气再循环系统，所述烟气再循环系统的烟气取自引风机后，由烟气再循环风机抽至炉膛各区域，在再循环风机至炉膛各区域的管路上设有调节风门，调节至炉膛不同区域的再循环烟气量，从而使得炉膛内各处的烟气温度可控，进而使得锅炉内烟气温度和蒸汽温度各处均可控。本发明特殊设计的采用烟气分区再循环技术的化石燃料锅炉，解决了耦合用化石燃料锅炉汽水系统和燃烧系统的自耦合问题，增强了核能与常规能源耦合的系统设计中的关键设备的可用性。

Once through steam generator with 100% quality steam output

A system for deriving 100% quality steam for steam assisted gravity drainage (SAGD) injection or other applications features a once through steam generator (OTSG), a steam-water separator connected downstream of the OTSG's radiant tubes to separate steam and water from a two-phase flow received therefrom, superheater tubes installed in the convection section and connected to a steam outlet of the steam-water separator in downstream relation thereto to receive and heat dried steam therefrom to a superheated state, and a desuperheater connected downstream of the superheater tubes to receive the superheated steam therefrom and use same to vaporize blowdown water from the steam-water separator, whereby the vaporized blowdown water and the superheated steam collectively form a superheated steam output for the intended application, typically after additional separation of solid particles therefrom for optimal steam quality.

Heat exchanger assembly, a fin for and method of manufacturing such an assembly

A heat exchanger assembly, comprising : heat exchanger pipework which comprises a plurality of elongate tube elements which extend in spaced relation and a plurality of pipe end couplings which fluidly connect open ends of respective tube elements, wherein the pipe end couplings each comprise a main body part to which the open ends of the respective tube elements are fixed, and an enclosure part which is fixed to the main body part and provides a closed fluid connection between the open ends of the respective tube elements; and a plurality of fins which extend in spaced relation and optionally substantially orthogonally to the tube elements, wherein the fins each comprise a sheet element, optionally a single, continuous sheet element, which includes a plurality of apertures through which extend respective ones of the tube elements, and a plurality of fin coupling elements which are located within respective ones of the fin apertures to interface the tube elements to the sheet elements.

Apparatus for generating reheat steam

本发明涉及使蒸汽或烟雾生成为再热蒸汽来供给的装置，更详细地，提供再热蒸汽发生装置，包括：燃烧室，在上述燃烧室形成有规定体积的空间部，在上述燃烧室的内侧上端的中心设置有燃烧器；蒸汽室，在上述燃烧室的外周缘形成有规定体积的空间部，利用从燃烧室传递的热对从外部供给的恒定温度的蒸汽或雾化的烟雾进行第一次加热；多个蒸汽加热管，在上述燃烧室的内部以线圈形状卷绕，并通过在燃烧器中发生的火焰对在蒸汽室中实现第一次加热后供给的蒸汽或烟雾进行第二次加热，使得上述蒸汽或烟雾成为恒定温度的再热蒸汽；排气室，以规定体积形成于上述蒸汽室的外周缘，并与燃烧室相连通，使得在燃烧室中燃烧的废气通过气体排出管排出；以及加热室，以规定体积形成于上述排气室的外周缘，并利用在排气室中传递的热来对从外部供给的蒸汽或空气进行加热。

Reheater for cfbc boiler

본 발명에 의하면, 순환유동층연소 보일러에 설치되어서 사용되는 재열기에 있어서, 가열대상 증기가 유동하는 통로를 내부에 제공하는 튜브 구조체를 포함하며, 상기 튜브 구조체는 가열 공간을 통과하는 구간을 포함하고 니켈과 크롬을 함유하는 합금강 재질인 메인 튜브부를 구비하며, 상기 메인 튜브부는 상기 가열 공간 내에서 가열 대상 증기의 유동 방향을 따라서 연속적으로 이어지도록 연결되는 제1 메인 튜브와 제2 메인 튜브를 구비하며, 상기 제2 메인 튜브는 상기 제1 메인 튜브의 니켈과 크롬의 함유율이 더 높은, 순환유동층연소 보일러용 재열기가 제공된다. According to the present invention, in the reheater installed and used in a circulating fluidized bed combustion boiler, it includes a tube structure that provides a passage through which the steam to be heated flows therein, the tube structure includes a section passing through the heating space, A main tube portion made of an alloy steel material containing nickel and chromium is provided, wherein the main tube portion includes a first main tube and a second main tube connected continuously along a flow direction of a steam to be heated in the heating space, , The second main tube is provided with a higher content rate of nickel and chromium in the first main tube, a reheater for a circulating fluidized bed combustion boiler.

Methods and equipment for producing superheated steam by the heat generated in the boiler of the incinerator

Gas-steam efficient cogeneration process and system based on biomass gasification and methanation

본 발명은 바이오매스 가스화와 메탄화에 근거한 가스-스팀 열병합 방법 및 시스템을 제공한다. 시스템은 바이오매스 가스화 유니트, 변환 유니트, 정화 유니트, 메탄화 유니트, 및 메탄 농축 유니트를 구비한다. 가스화 유니트는 CO와 H 2 의 유효 가스 성분을 현저하게 향상시킬 수 있고 바이오매스 가스화 효율을 향상시킬 수 있는국부적으로-외부의 일정한 고온 가열원 공기 유동층을 이용한다. 가스화 유니트는 고온에서 생성된 타르의 양을 엄청나게 감소시킬 수 있고, 탄소 변환율을 향상시키고 타르 제거 장치에 대한 투자를 감소시킬 수 있다. 메탄화 공정에서, CO의 변환 효율은 100%에 달하고, H 2 의 변환 효율은 99%에 달한다. 또한, 다량의 부산물인 중간 압력 과열 증기가 생성되고, 전통적인 메탄화 반응의 순환 압축기의 전력 소비가 감소된다. 본 발명은 바이오매스 에너지가 청정하고, 고발열량, 및 편리한 사용이 가능한 천연 가스로 변환될 수 있고, 바이오매스 가스화와 메탄화에서 방출되는 다량의 열은 고품질의 과열 스팀의 생성 모드를 통해 효과적으로 리사이클 될 수 있다. The present invention provides a gas-steam cogeneration process and system based on biomass gasification and methanation. The system comprises a biomass gasification unit, a conversion unit, a purification unit, a methanation unit, and a methane concentration unit. The gasification unit utilizes a constant-temperature, high-temperature, source-air fluidized bed, which can significantly improve the effective gas composition of CO and H 2 and improve the biomass gasification efficiency. The gasification unit can drastically reduce the amount of tar produced at high temperatures, improve the carbon conversion rate and reduce the investment in the tar remover. In the methanation process, the conversion efficiency of CO reaches 100% and the conversion efficiency of H 2 reaches 99%. In addition, a large amount of byproduct, intermediate pressure superheated steam, is produced and the power consumption of the cyclic compressor of the conventional methanation reaction is reduced. The present invention can be converted into natural gas in which biomass energy is clean, high heat amount, and easy to use, and a large amount of heat released from biomass gasification and methanation is effectively recycled through the production mode of high quality superheated steam .