Industrial chillers sometimes experience liquid shock when used. What caused this?
First, a large amount of refrigerant liquid enters the compressor at the moment of starting.
Second, the evaporator flow is not enough (the load is reduced). The industrial chiller pipeline plan is to restrain the liquid refrigerant from entering the compressor when starting up.
Industrial chillers are used in air-cooled box chillers. So, how do we deal with the problem of liquid slamming or liquid return of industrial chillers? Industrial chillers remind you of the tension from the following aspects:
1. This is the sound of the metal fragments crushed by the scrolls colliding with each other or colliding with the compressor casing. It is usually reflected in the sign that the metal impact sound inside the compressor can be heard. Or the four-way valve is changed. It is caused by the liquid entering the compressor in the instantaneous evaporator.
2, low temperature chiller, etc., said that the compressor is the heart of the chiller. Water-cooled box chillers, industrial chiller system flow shielding is not lacking, industrial chillers are named after the use of industrial chillers, especially the refrigeration system with a large filling capacity, the gas-liquid evacuation device is increased at the suction port of the compressor. It is an effective step to handle this problem.
3. Especially in the heat pump unit that receives the reverse cycle hot gas defrosting in the industrial chiller, how do we operate the gas compressor to hinder the compressor? In the event of a compressor, there is a reason for hindering how to decisively hinder the birth; it also has a positive effect on the police liquid attack. Open chiller, so that when the water flow is not enough to play the role of shielding the compressor, the compressor has the phenomenon of liquid return, the third is that the unit heat pump operation is not good defrosting, a large amount of liquid refrigerant does not evaporate into the compressor, the compressor Pre-heating of the oil chamber for a sufficient period of time can effectively restrain a large amount of refrigerant from accumulating in the lubricating oil.
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