5results about How to "Reduce pressure difference" patented technology

A gas processing system includes a vessel (102) defining a cavity (106) for processing a gas. The vessel includes a process gas inlet (108) for receiving a process gas at an input pressure and a process gas outlet (110) for discharging the process gas at an output pressure. The gas processing system also includes a shaft (122) coupled to the vessel and a stepwise sealing system (114) including a plurality of seals (136) spaced along the shaft. The shaft is configured to transfer mechanical energy to or from the gas in the vessel. Each adjacent pair of seals defines a corresponding pressure space therebetween. One of the pressure spaces is an equalization pressure space (144a) in hydraulic communication with the process gas inlet via a flow line (116) such that, in operation, a pressure in the equalization pressure space is maintained at an equalization pressure relative to a pressure in the process gas inlet.

The present disclosure relates to a screw compressor and a refrigeration system, wherein the screw compressor comprises a body (1) comprising a first slot body (11) extending along a preset direction (x), a slide valve limiting component (2) comprising a supporting piece (21) connected to the body (1) and a limiting piece (22) extending along the preset direction (x) and comprising a first part (221) and a second part (222), the first part (221) extending out of the supporting piece (21) and being located in the first slot body (11), and the second part (222) being arranged on the supporting piece (21), and a slide valve (3) movably connected to the limiting piece (22) along the preset direction (x).

The application discloses a high-temperature co-electrolysis cell stack module structure and relates to the technical field of fuel cells, which comprises an electric pile group and a pipeline assembly; the electric pile group comprises six electric piles which are arranged in a regular hexagon around a central position and are left empty in the central position; the electric pile comprises a top plate and a bottom plate, and the top plate and the bottom plate are in a regular hexagon structure; the electric pile further comprises four groups of stretching assemblies, the stretching assembly comprises a pull rod and a spring, and the spring is in a stretching state; the pipeline assembly comprises an air inlet pipeline and an air outlet pipeline; the gas entering a total gas inlet is shunted to the first gas inlets of the six electric piles, and the gas entering a total air inlet is shunted to the first air inlets of the six electric piles; the air outlet pipeline comprises a total gas outlet and a total air outlet, and the gas flowing out of the first gas outlets and the first air outlets of the six electric piles is respectively converged to the total gas outlet and the total air outlet. The application adopts a honeycomb six-pile ring arrangement structure, and the compactness and the modularization level of the system are significantly improved.

This utility model discloses a precision-drilled multilayer circuit board, belonging to the field of multilayer circuit boards. It includes a circuit board and rivets. Each rivet comprises a linkage structure, a clearance groove, a limiting ring, a riveting groove, an outer protective ring, an assembly ring, a riveting plate, a riveting connecting rod, an inner pressure ring, a snap-fit ​​groove, and a through groove. Through the combination of the outer protective ring and the limiting ring, and the inner riveting groove and the riveting plate, stacked rivets can be achieved. Each rivet can independently press the circuit board through the limiting ring, ensuring the stability between circuit board layers and improving interlayer positioning accuracy. Simultaneously, it reduces the pressure difference between layers, thereby reducing deformation caused by uneven interlayer stress, ensuring the accuracy of subsequent drilling, etc. It is not limited by the number or thickness of layers, allows for convenient assembly, and eliminates the need for multiple sets of riveting holes, saving circuit board space. During riveting, a single riveting connecting rod can drive all assembled rivets to be riveted simultaneously, eliminating the need for multiple riveting operations, ensuring stability while improving production efficiency.

This application relates to the field of prefabricated building technology, providing a prefabricated house structure including a subbase, foundation, prefabricated walls, and roof. The roof includes a top floor slab and a windproof device. The windproof device includes a shielding component, which comprises multiple sliding rods and multiple shielding parts. One end of each sliding rod is slidably mounted on the top floor slab, and the other end is slidably mounted on the prefabricated wall. Each shielding part is connected to two adjacent sliding rods. The windproof device has a windproof state where multiple sliding rods move multiple shielding parts to form an angle of retraction opposite to the incoming wind for wind protection, and a sun-exposed state where multiple sliding rods fold and retract the shielding parts. The prefabricated house structure provided by this application reduces wind load through the angle of retraction in the windproof state, thus improving the technical problem in related technologies where prefabricated house structures are difficult to adapt to wind loads from different wind directions during environmental changes, leading to house damage.