The composition of the refrigeration system

Update:25 Sep 2017
Summary:

Main components:Refrigeration system consists of refrig […]

Main components:Refrigeration system consists of refrigerant and four mechanical parts, namely, compressor, condenser, expansion valve, evaporator composition.

Compressor:Compressor is the power of the refrigeration cycle, which is dragged by the motor and constantly rotating, in addition to its timely extraction of vapor within the evaporator to maintain low temperature and low pressure, but also by compression to improve the pressure and temperature of the refrigerant vapor to create the refrigerant The condition of the transfer of heat from the heat to the external environment. The low-temperature low-pressure refrigerant vapor is compressed to a high temperature and high pressure state so that the refrigerant vapor can be condensed with normal air or water as a cooling medium.

Condenser:The condenser is a heat exchange device which utilizes ambient cooling medium (air or water) to remove the heat from the high temperature and high pressure refrigeration vapor of the compressor, cool the high temperature and high pressure refrigerant vapor and condense into the refrigerant liquid at normal pressure The It is worth mentioning that the condenser in the refrigerant vapor into refrigerant liquid process, the pressure is constant, still high pressure.

Throttle element:High-pressure normal temperature of the refrigerant liquid directly into the low-temperature scale evaporator, according to the saturation pressure and saturation temperature - the corresponding principle, reduce the pressure of the refrigerant liquid, thereby reducing the temperature of the refrigerant liquid. The high-pressure room temperature refrigerant liquid through the anti-pressure device - throttle components, low-temperature low-pressure refrigerant, and then into the evaporator heat absorption. In daily life in the refrigerator, air conditioning commonly used capillary as a throttle element.

Evaporator:The evaporator is also a heat exchange device. The low temperature and low pressure refrigerant liquid after the throttling evaporates (boils) into steam, absorbs the heat of the cooled material, and decreases the temperature of the substance to the purpose of freezing and refrigerating the food. In the air conditioner, cooling the air around to achieve the role of air cooling, dehumidification. The lower the evaporation temperature of the refrigerant in the evaporator, the lower the temperature of the coolant. In the refrigerator, the general temperature of the refrigerant is adjusted from -26 ° C to -20 ° C and adjusted at 5 ° C to 8 ° C in the air conditioner.