Causes of liquid shock in refrigeration compressors

Causes of liquid shock in refrigeration compressors 1) Too much refrigerant is added to the entire refrigeration system.    2) The throttle valve is opened too large, or the adjustment is malfunctioning.    3) The evaporation area is too small, which does not match the cooling capacity of the compressor.    4) The cooling area of the evaporator is reduced. When the surface of the evaporator is severely covered with frost, the heat transfer is reduced, and wet compression is also easy to occur.    5) When the unit just started running, due to the high evaporating temperature at the beginning, the suction valve of the compressor opened too fast, causing sudden suction.    6) The lubricating oil temperature of the Freon compressor is too low, which will cause the working fluid to dissolve too much in the lubricating oil when the compressor sucks in air. The pressure on the suction side suddenly drops. At this time, the working fluid dissolved in the oil will suddenly evaporate, causing the oil to foam and the oil will be sucked into the compressor with the working fluid-causing liquid shock.   During the operation of the machine, if it is found that the temperature of the suction and exhaust gas drops rapidly, the suction chamber of the machine is frosted, the sound of the valve flap is abnormal, and there is a slight sound of knocking on the cylinder, it should be adjusted in time.

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