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Refrigeration Mechanism of Supermarket Refrigerator Island Freezer

Views: 5     Author: Site Editor     Publish Time: 2018-12-11      Origin: Site

Refrigerator refrigeration systems are not complex, consisting primarily of compressors, condensers, capillaries and evaporators, while compressors are the heart of mechanical refrigeration systems. Whether its choice is correct or not will directly affect the cooling operation of the whole machine. The island freezer is a commercial high performance chiller with high temperature requirements for the cabinet. There is a glass seal around the refrigerator. Although these glasses are also special insulating glass, they are slightly inferior in heat resistance compared to conventional foamed insulating materials. Due to the need to open the cabinet door frequently to take food, as well as other factors, there will always be a certain loss of cold.

When the refrigerator in the supermarket is compressed, the gaseous refrigerant is compressed into high temperature and high pressure gas through the compressor, and then enters the condenser. The condenser is equivalent to a heat exchange device, and the high temperature and high pressure gaseous refrigerant is exchanged into a low temperature and high pressure liquid refrigerant. The liquid refrigerant passes through the expansion valve. The so-called expansion valve is a throttling device. Because the refrigerant flowing out of the expansion valve is contained, the pressure of the refrigerant is lowered after the pressure is released, and the temperature continues to decrease, becoming a gas-liquid two phase and then entering the evaporator. At this time, the refrigerant re-evaporator performs heat exchange vaporization, and the high-temperature low-pressure gas refrigerant returns to the compressor to continue the circulation.

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