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Introduction to the composition of refrigerated truck refrigeration system and the role of each component(2)

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Introduction to the composition of refrigerated truck refrigeration system and the role of each component(2)

The refrigeration system is composed of refrigerant and four major parts, namely compressor, condenser, expansion valve and evaporator. Compressor Compressor is the driving force of the refrigeration cycle. It is driven by the motor to continuously rotate. In addition to pulling out the vapor in the evaporator in time to maintain low temperature and low pressure, it also increases the pressure and temperature of the refrigerant vapor through compression, creating a The condition for transferring the heat of refrigerant vapor to the external environment medium. That is, the low-temperature and low-pressure refrigerant vapor is compressed to a high-temperature and high-pressure state, so that normal temperature air or water can be used as a cooling medium to condense the refrigerant vapor.

Refrigerated truck

In the refrigeration system, the compressor is the heart, playing the role of inhaling, compressing, and transporting refrigerant vapor. The condenser is a device that emits heat, and transfers the heat absorbed in the evaporator together with the heat converted by the compressor work to the cooling medium to take away. The expansion valve is also called a throttle valve. The expansion valve throttles and reduces the pressure of the refrigerant, while controlling and regulating the amount of refrigerant liquid flowing into the evaporator, and divides the system into two parts, a high-pressure side and a low-pressure side. The evaporator is also a heat exchange device. The low-temperature and low-pressure refrigerant liquid after throttling evaporates in it to become vapor, absorbs the heat of the material to be cooled, reduces the temperature of the material, and achieves the purpose of freezing and refrigerating food.


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