Blister machine product refrigerator liner cooling process

When the power is turned on, when the panel shows that the temperature is higher than the set temperature, the first-stage compressor starts first, and the first-stage refrigeration system starts to work, so that the condenser temperature of the second-stage refrigeration system drops, that is, the second-stage refrigeration system The temperature of the refrigerant drops. After a delay of a few minutes, the second-stage refrigeration system also starts to work. Its evaporator is on the inner wall of the refrigerator, which can make the temperature inside the refrigerator drop a lot. The evaporator of the first-stage refrigeration system absorbs the heat, and the heat released by the first-stage condenser is dissipated into the air. When the internal temperature of the refrigerator reaches the set temperature, the resistance of the temperature sensing probe transmits the information, the control relay loses power and disconnects, and the two-stage refrigeration system stops working. When the temperature in the ultra-low temperature refrigerator rises again and exceeds the set temperature, the ultra-low temperature refrigerator repeats the above operation process again, so that the temperature in the refrigerator is always kept around the set temperature.