Screw machine refrigeration oil replacement of specific methods and steps

this paper we mainly introduce everyone to frozen oil shows the specific influence of acidification for screw machine and screw machine refrigeration oil replacement of specific methods and steps in detail. Welcome to read:

a, frozen oil acidification for the negative impact of the screw refrigeration compressor

if the inside of the screw machine lubricating oil in the acidification, will directly affect the service life of screw compressor motor. So be sure to regularly check whether frozen oil acidity is qualified, if at the time of frozen oil acidity below PH6 will have to replace the frozen oil. You also need to change regularly refrigeration system for liquid pipe of the filter drier filter, to ensure that the refrigeration system of dry;

2, screw refrigeration compressor refrigeration oil replacement method and the concrete steps of

1, the first turn on the refrigeration system of refrigerant recovery to the condenser side, then the refrigerant ruled out inside the screw compressor, and then the system Angle of the acidity of lubricating oil from the oil drain valve comes out;

2, lubricating oil in the compressor from the Angle of oil drain valve inside out, know that oil close to put out, from the high pressure end of the screw compressor detection into certain nitrogen, the joint use of nitrogen pressure to speed up the compressor lubricating oil in the discharge, know as lubricating oil row, then stop filling nitrogen, the Angle of close drain valve. Next, remove the screw compressor oil filter, and then put the tank inside of lubricating oil, and then clean the oil filter to clean after it is good to put back in fixed;

3, the next step is to compressor inside filling lubricating oil, lubricating oil must be in accordance with the amount of compressor standard listed. At the same time to take time to homework system, need to pay attention to the vacuum pump, we suggest in the high and low voltage side Angle valve or other high points, the aim is to prevent frozen within the compressor oil is pumped into the vacuum pump to cause damage to it; After job completion to the system of vacuum pressure or at the time of leak, must observe pressure if there is a big fluctuations or rebound;

4, at the time of filling oil, can be used to clean plastic pipe connected to the oil drain valve, the other end of the plastic pipe into the barrel inside, at the time of filling oil cans to seal up, reduce the air pollution of oil itself.

this of screw refrigeration compressor refrigeration oil to replace the specific steps to introduce here!

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