Process for machining overlapped broaching blade groove of two cylinders and clamp and cutter therefor

Multiple connected air conditioning system and control method thereof

The invention discloses a control method of a multiple connected air conditioning system. The control method comprises the following steps of: calculating a target temperature by using a fuzzy control algorithm according to operating parameters of an air conditioning system; converting an actual pressure measured by a pressure sensor into a saturated refrigerant temperature as an actual temperature and calculating a difference value of the actual temperature and the target temperature; and calculating and adjusting capacity output of a compressor, wind speed of an outdoor fan and openings of indoor and outdoor electronic expansion valves by using a proportion integration differentiation algorithm according to the difference value of the actual temperature and the target temperature, a change rate of the actual pressure and a change rate of the actual temperature and the target temperature so that the actual temperature and the target temperature are consistent. The invention also discloses ...

Seal structure at sintering ring cold machine air chamber terminal of steel and iron plant

The invention discloses a seal structure at the sintering ring cold machine wind chamber terminal of a steel and iron plant, which comprises a seal structure at a high-temperature smoke using section, a seal structure at a low-temperature smoke using section, a trolley and seal rubber at the bottom of the trolley, wherein the seal structure at the high-temperature smoke using section mainly comprises a first seal steel plate, a second seal steel plate, a vertical steel windproof plate and a tripod, the near-edge distance between the first seal steel plate and the second seal steel plate is shorter than the length between two sections of the trolley, and the far-edge distance between the first seal steel plate and the second seal steel plate is longer than the length between two sections of the trolley; and the invention prevents wind leaking from two terminals of a residual heat using phase in an air chamber of a smoke recycling phase so as to improve the efficiency of smoke recycle and ...

Flange component connection structure of rolling rotor type compressor

The present invention relates to a rolling rotor type compressor flange component connecting structure of rolling rotor type compressor, which includes a cylinder, an upper and lower cylinder cover, a bent shaft, a piston and blade, wherein the cylinder is set between the upper and lower cylinder cover, and constitutes a pump body with a housing; a flange that fixed with the pump body through bolt. The relative position of the flange and pump body is adjustable so as to keep the bent shaft center in accordance with the housing center. Compared with prior art, the present invention is provided with degree of consistency that can improve air gap in the compressor assembling process, can improve assembly quality, and miniaturize the compressor.

Drilling type well completion technology for fishbone branch borehole

The invention belongs to a well completion technology for fishbone branch wells of oil fields, and in particular relates to a drilling type well completion technology for a fishbone branch borehole. The technology is characterized by comprising the following steps of: when a main borehole is drilled to a junction position of the front end of a first branch borehole and the main borehole, drilling the first branch borehole; connecting a sieve tube of the first branch borehole, a glass fiber reinforced plastic casing and an aluminum alloy reversing joint with one another in sequence from the bottom to top, and connecting with a drill rod and laying down into the first branch borehole; reversing off the combination of the sieve tube of the first branch borehole, the glass fiber reinforced plastic casing and the aluminum alloy reversing joint, wherein the sieve tube of the first branch borehole and a part of the glass fiber reinforced plastic casing are in the first branch borehole, and the ...

Device for automatically correcting shaft hole

The invention provides a device for automatically correcting a shaft hole, comprising a cross beam, a fixed block and a proximity switch, wherein the cross beam is provided with a first through hole and fixed on a first moving body; the fixed block is provided with a second through hole and connected with a second moving body; the proximity switch is partially embedded into the second through hole; and a structure matched with the first through hole is arranged at the part of the proximity switch, which is protruded out of the fixed block. By using the device for automatically correcting the shaft hole, the problems that a medical endoscope trolley is difficult to align with a hoist tower in the actual operation, which is easy to collide with the surfaces of products, scratch or damage to the surface of a machine and influence the attractiveness, the use and the like and the safe use effect can be further achieved.

Electromechanic integration gas control valve

The utility model relates to a gas control valve of electro-mechanic integration, driven by a DC micro-motor of low voltage and high rotating speed, realizing the on-off of the valve by reduction, a shift fork driving mechanism and a position limiting mechanism, obtaining such output effect that the small torque moment and high tachometric output on a motor shaft are converted to low speed and large twisting force on a valve spindle. The utility model has the advantages that the operational reliability of valve spindle is high, has compatible or corresponding features meeting the requirements of pre-payment gas meter using intelligent (IC) cards, and can realize the management modernization of gas metering and charge control by arrangement on the intelligent (IC) cards.

Anti-air leakage structure of end part of steel and iron plant ring cold machine smoke hood

The invention discloses an anti-air leakage structure of an end part of a steel and iron plant ring cold machine smoke hood, which comprises more than two hinge turning plates, a sector plate is welded on the hinge turning plate between each hinge turning plate; or the sector plate is respectively welded at two sides of each hinge turning plate; the central angle of the sector plate is 60 degrees;and a cold gap between two adjacent sector plates can be arranged to 5mm. The anti-air leakage structure of the end part of the steel and iron plant ring cold machine smoke hood not only decreases air leakage rate, especially solves the air leakage of an included angle existing when the turning plates are not parallel, thus lightening the influence of air leakage on smoke quality, improving smokeutilization quality, and causing the smoke temperature to avoid impact of uncertain air leakage and a whole waste heat generating system to more stably and efficiently operate.

Seal structure between wind chamber and the lower part of sintering ring cold machine trolley of steel and iron plant

The invention discloses a seal structure between a wind chamber and the lower part of a sintering ring cold machine trolley of a steel and iron plant, which mainly comprises an outer seal piece, a seal contact plate and inner-side seal rubber, wherein the outer seal piece consists of a seal piece strut member, an outer limit plate, an inner limit plate, an elastic rubber cylinder, rubber in the shape of a seal groove, a support plate and an adjustable connection screw rod, the support plate is arranged in the rubber in the shape of a seal groove and is connected with the seal piece strut member through the adjustable connection screw rod in an adjustable way, outer seal is realized through the rubber in the shape of a seal groove and the seal contact plate, and inner seal is realized through the inner-side seal rubber. The invention improves the efficiency of smoke recycle and the quality of smoke utilization, fully recycles smoke, effeciently uses cold residual heat of sintering rings, ...

Electrical fluid stirrer

The electric fluid stirrer has a connected duct structure, a rotor component and an outer strip structure. When the rotor component rotates, the fluid flowing through the components is stirred and mixed.

Process for machining overlapped broaching blade groove of two cylinders and clamp and cutter therefor

The invention relates to a process and the clamp and knife for two-cylinder repeated broaching blade groove; the character is: the process is made up of turning process of two end faces of the cylinder, process of middle aperture of cylinder wall, surface grinding process of two end faces of the cylinder, and broaching process of cylinder blade groove; the clamp for above mentioned craft is made up of an upper and a subjacent clamp bodies and base; there has two blocks of bases on the two clamp bodies; there has two localizing pins on the base; several cylinder localizing base surfaces are arranged around the localizing pin with interval; the knife is made up of arbor, two finishing broaches and eight gruff broaches on the arbor; the blade part of the gruff broach is ladder type, the blade is teeth type; the clamp can guarantee the precision of cylinder overlapped broaching blade grooves; the cost can be reduced greatly.