Compressor
Refrigeration compressor is a cold storage refrigeration system in the low temperature and low pressure refrigerant vapour from the evaporator sucked back, by compression to form high temperature and high pressure gas. Refrigeration compressor is the main refrigeration equipment in the refrigeration system. Normal cold storage options, generally small cold storage selection of hermetic compressor, medium and large cold storage selection of semi-hermetic compressor, large cold storage selection of screw parallel unit.
Condenser
Condenser is used for refrigeration compressor discharge of high temperature and high pressure gaseous refrigerant cooling and exothermic, exclude the temperature, at a certain pressure and temperature, the gas refrigerant condensed into a gas-liquid mixture, of which the liquid majority.
Expansion Valve
Expansion valve, also known as throttle valve, is used for high-pressure refrigerant liquid decompression, throttling expansion for low temperature, low-pressure liquid.
Evaporator
Evaporator through the expansion valve throttling low temperature and low pressure refrigerant to absorb the heat around the cold storage and evaporation, to achieve the purpose of cooling.