Condenser, evaporator operation rules and precautions

1. Operation of the condenser 1) When the refrigeration system is running, all the other valves of the condenser should be opened except the oil drain valve and the air drain valve are closed. 2) The maximum condensing pressure of the water-cooled condenser should not exceed 1.5MPa, otherwise the cause should be found out and eliminated in time. The water supply to the condenser can be stopped only after the compressors are all shut down for 15 minutes. When stopping work for a long time in winter, the stored water should be drained to avoid freezing damage to the equipment.

Condenser cleaning determination, method and operation

"After long-term use of the condenser, it is easy to form scale in the pipeline. If it is not dealt with in time, these scales will affect the heat exchange effect, resulting in an increase in the condensing temperature of the unit, which in turn leads to a decrease in the cooling capacity and an increase in the power consumption of the unit. So the condenser should be descaled frequently.”

Analysis of the status quo of the automotive air-conditioning compressor industry can bring development opportunities

The air-conditioning compressor is an important part of the automobile air-conditioning system. The automobile air-conditioning system is mainly composed of four parts: the compressor, the condenser, the restrictor (expansion device) and the evaporator. The automotive air-conditioning compressor is the heart of the automotive air-conditioning refrigeration system, and is the power source for the refrigerant to circulate in the system. The structure of the condenser and the evaporator is similar. They are a row of curved pipes covered with metal sheets for heat dissipation, which exchange heat with the outside world. The principle is similar to the heat dissipation water tank of the engine. The main function of the expansion valve is to throttle and adjust the refrigerant flow. After the high temperature and high pressure liquid refrigerant is throttled through the expansion valve, the volume becomes larger, and the pressure and temperature of the refrigerant drop sharply.