display cooler cascade refrigerator cycle
display cooler cascade refrigerator cycle display cooler cascade refrigerator cycle system usually consists of two separate refrigeration systems, called high-temperature and low-temperature parts. The high temperature part uses medium temperature refrigerant, and the low temperature part uses low temperature refrigerant. The evaporation of the refrigerant in the high-temperature part of the system is used to condense the refrigerant in the low-temperature part of the system. A condensing evaporator is used to connect the two parts. It is both an evaporator for the high temperature part and a condenser for the low temperature part. The low-temperature part of the refrigerant absorbs heat from the object to be cooled in the evaporator (that is, produces cold energy), and transfers this heat to the high-temperature part of the refrigerant, and then the high-temperature part of the refrigerant transfers the heat to the cooling medium (water or air) ).
The refrigerator system used by the domestic D-8 low-temperature display cooler; it is designed according to the cycle. The high-temperature refrigerant is R22, and the low-temperature refrigerant is R13. The operating temperature in the display cooler is about -80±2°C, so the evaporation temperature of R13 is about -85 to -90°C. In the low-temperature part of the system, a gas-liquid heat exchanger, a water cooler and an expansion vessel are also added. The gas-liquid heat exchanger is used to increase the suction temperature of the low-temperature compressor, while also increasing the unit refrigeration capacity of the low-temperature stage. The water cooler can reduce the heat load of the condensing evaporator, that is, reduce the refrigeration load of the high temperature class. The temperature of the exhaust gas in the water cooler is approximately equal to the condensation temperature of the high-temperature stage (because the same cooling medium is used). The process of the system can be clearly seen that the display cooler cascade refrigerator works in cycles. The above articles are from refrigerated showcase display cases and display cooler. For details, please log in: www.ihdjx.com Free Order Hotline: +86 18019567573 Contact: Mr. Shao 26066250@qq.com
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