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walk-in cooler refrigeration compressor
walk-in cooler refrigeration compressor
walk-in cooler refrigeration compressor The machine used to compress gas to increase the gas pressure is called a compressor. In vapor compression refrigeration equipment, the compressor is one of the four main components. It compresses the walk-in cooler refrigerant vapor from a low-pressure state to a high-pressure state, creating conditions for the refrigerant liquid to vaporize and refrigerate at low temperatures in the evaporator and liquefy at room temperature in the condenser. In addition, because the walk-in cooler compressor continuously sucks and discharges gas, the refrigeration cycle can be carried out repeatedly, so it is called the heart of the whole device. walk-in cooler compressors can be classified into positive displacement compressors and speed compressors according to their working principles. The
walk-in cooler positive displacement compressor directly compresses the gas in a variable volume, so that the volume of the gas is reduced and the pressure is increased. Its characteristic is that the compressor has a working chamber whose volume can be changed periodically. Reciprocating pistons, rolling rotors, screw compressors and scroll compressors all belong to this type, and reciprocating piston compressors are most commonly used in walk-in cooler refrigeration systems. The speed walk-in cooler compressor can first increase the gas flow speed, that is, increase the kinetic energy of the gas molecules: then the gas flow speed is reduced in an orderly manner, the kinetic energy is converted into pressure energy, and the gas volume is reduced accordingly. Its characteristic is that the compressor has an impeller that drives the gas to obtain a flow velocity. Centrifugal compressors belong to this type.
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