Reasons for excessively high discharge temperature of refrigeration compressor (technology sharing)

Reasons for excessively high discharge temperature of refrigeration compressor (technology sharing)



The refrigeration compressor is the core and heart of the refrigeration system. The capacity and characteristics of the compressor lead to the capacity and characteristics of the refrigeration system. In a sense, the design and matching of the refrigeration system is to reflect the capacity of the compressor. Therefore, the refrigeration industry of all countries in the world has invested a lot of energy in the research of refrigeration compressors, and new research directions and research results are constantly emerging. The technology and performance levels of compressors are changing rapidly. There are many types of compressors. According to different working principles, refrigeration compressors can be divided into fixed displacement compressors and variable displacement compressors.



　　The reason for the high discharge temperature of refrigeration compressor

　　⑴ The clearance in the compressor cylinder is too large.

　　⑵ The suction and discharge valves and piston rings in the compressor are damaged.

　　⑶ The compressor safety bypass valve is leaking.

　　⑷ The compressor suction temperature is too high.

　　⑸ The lubricating oil in the compressor cylinder is interrupted.

　　⑹ The compressor suction pressure is too low or the suction valve is opened too small.

　　⑺ The compressor suction pipe or filter is blocked, and the thermal insulation layer is damaged.

　　⑻ The resistance in the return pipe of the compressor is too large, and the slow gas flow is prone to overheating, causing the exhaust temperature to rise.

　　⑼ The condensing pressure of the refrigeration compressor is too high; there is grease or water scale in the condenser.

　　⑽ The amount of water in the cooling water jacket of the compressor cylinder head is insufficient; or the cooling water temperature is too high.

　　⑾ The refrigeration capacity of the compressor is less than the capacity of the warehouse equipment, such as the evaporation area is too large.

　　⑿ The resistance in the compressor exhaust pipe is too large.

　　⒀ The throttle valve of the refrigeration compressor is opened too large or blocked.

　　⒁ The compressor's own efficiency is poor.

　　⒂ The installation height of the ammonia separator is too low.