Mechanical principles of refrigeration compressors

Refrigeration compressor is the core component in the refrigeration system, its mechanical principle is mainly through the compression of the work gas to increase its pressure and temperature, so that it can release heat and realize the refrigeration effect.

Refrigeration compressor usually consists of compressor body, motor, condenser, expansion valve and evaporator and so on. Its working principle can be simply described as follows: the compressor is driven by the motor, the low-temperature and low-pressure vapor refrigerant is sucked into the compressor, and after compression, it becomes a high-temperature and high-pressure gas. At this time, the gas will release heat, and then through the condenser heat dissipation, cooling into a high-pressure liquid refrigerant. Subsequently, the liquid refrigerant is depressurized through the expansion valve to become a low-pressure, low-temperature vapor refrigerant, which enters the evaporator to absorb external heat and realize the refrigeration effect.

In this process, the compressor plays the role of compression, temperature increase and heat removal. Through continuous cyclic operation, the refrigeration compressor can continuously transfer heat from the low-temperature region to the high-temperature region, thus realizing the refrigeration effect.

In practice, refrigeration compressors are usually differentiated according to different principles and work materials. Common types of compressors include reciprocating compressors, screw compressors, centrifugal compressors and so on. Different types of compressors in the principle and structure of a slight difference, but its basic working principle is through the compression of gas to achieve refrigeration effect.

In general, the mechanical principle of the refrigeration compressor is driven by the motor, through the process of compression, warming and heat exhaust to realize the purpose of transferring heat from the low-temperature region to the high-temperature region, so as to achieve the effect of refrigeration. Through the continuous cycle, the refrigeration compressor can stably maintain the operation of the refrigeration system to meet the refrigeration needs of different occasions.