Compressor water-cooled refrigeration system Refrigeration compressor is an important equipment for vapor compression refrigeration. There are many forms of refrigeration compressors. According to different working principles, they can be divided into two categories: volumetric refrigeration compressors and centrifugal refrigeration compressors. Commonly used compressors mainly include piston compressors, scroll, screw and centrifugal compressors. The volumetric refrigeration compressor compresses the metered gas that is periodically sucked in by changing the volume of the working chamber. Commonly used volumetric refrigeration compressors include reciprocating piston refrigeration compressors and rotary refrigeration compressors.
The centrifugal refrigeration compressor continuously compresses the sucked gas by the action of centrifugal force. This type of compressor has a high number of revolutions and a large refrigeration capacity. The external refrigeration capacity of Freon centrifugal refrigeration compressor for foreign air conditioners is as high as 30,000kw.

Polyethylene

High-pressure polyethylene: More than half is used for film products, followed by pipes, injection molded products, wire wraps, etc.
Low and medium pressure polyethylene: mainly injection molded products and hollow products.
Ultra-high-pressure polyethylene: Due to the excellent comprehensive properties of ultra-high-molecular-weight polyethylene, it can be used as engineering plastics.

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