Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 2. Отображено 2.
27-08-2021 дата публикации

Hydraulic fracturing ground stress test device with pressurization and pressure relief control switch

Номер: CN214066766U
Автор: ZHAO DINGMING, BAI JINPENG, DONG YAN'AN, 赵丁名, 白金朋, 董延安
Принадлежит: POWERCHINA BEIJING ENG CORP LTD, POWERCHINA BEIJING ENGINEERING CORPORATION LIMITED, 中国电建集团北京勘测设计研究院有限公司

The utility model discloses a hydraulic fracturing ground stress test device with a pressurization and pressure relief control switch, which comprises a piston assembly, a valve body and a rubber plug, two fluid pipelines are arranged in the valve body and are used for pressurizing and pressure relief of the rubber plug and pressurizing of a fracturing section respectively, the two fluid pipelines are separated by four sealing ring grooves in the valve body, and the two sealing ring grooves are communicated with the valve body. The piston connected with the clamping position in a reducing mode stays at different positions of the valve body and can pressurize and depressurize the two fluid channels respectively, and therefore liquid filling and pressurizing and liquid stopping and pressure maintaining of the rubber plug are achieved firstly; pressurizing the fracturing section; and finally, the rubber plug has a pressure relief function.

Подробнее
Номер записи: 1
27-08-2021 дата публикации

Observation window arrangement structure of fishway observation room

Номер: CN214061529U
Автор: LI HELIN, WANG JIALIN, QIAO MINGQIU, LIN JIANYONG, SUN WEI, ZHANG CHAO, LI WENKAI, 李贺林, 王佳林, 乔明秋, 林健勇, 孙伟, 张超, 李文凯
Принадлежит: POWERCHINA BEIJING ENG CORP LTD, POWERCHINA BEIJING ENGINEERING CORPORATION LIMITED, 中国电建集团北京勘测设计研究院有限公司

The utility model discloses an observation window arrangement structure of a fishway observation room, which comprises a vertical division column and a transverse division beam which are arranged in the range of an observation window and are used for dividing the size and the area of a glass window and are of a concrete structure, and glass which is arranged on the vertical division column and the transverse division beam and forms the observation window, the vertical partition columns arranged in the water depth height direction are through columns, and the transverse partition beams arranged in the fish swimming direction comprise the upper horizontal transverse partition beam and the lower horizontal transverse partition beam. The vertical dividing column divides the observation window opening into a left observation window and a right observation window which are the same in width in the fish swimming direction, and the upper horizontal transverse dividing beam and the lower horizontal ...

Подробнее
Номер записи: 2