Tips for compressors using refrigeration oil

Tips for compressors using refrigeration oil 1. The amount of frozen oil used. The amount of refrigerating oil should be controlled after the installation of the overall refrigeration system. After the trial operation, the oil return position of the refrigerating oil seen from the sight glass of the compressor should be at the center line of the sight glass. Too high oil return will cause the refrigerant to be over-diluted, resulting in low refrigeration efficiency; too low oil return will cause the performance of refrigeration, lubrication, heat removal, sealing, insulation, etc. to decrease. Therefore, when the pipeline of the installed unit is long, the matching refrigeration oil should be supplemented appropriately. 2. 2. Replacement of freezing oil. The compressor should be kept in clean and orderly working conditions. In order to ensure the best operation, safety and compressor life, maintenance work should be carried out and regular inspections including the replacement of refrigeration oil. Refrigerating oil replacement includes cleaning the filter. After 100 to 200 hours of continuous operation of the new compressor, the replacement is performed for the first time, and will be replaced once a year. Of course, we must dispose of the waste oil in accordance with the national requirements for the replaced frozen oil, otherwise it will cause insecurity and pollution. 3. Use of ester synthetic refrigeration oil. When using environmentally friendly refrigerants, ester synthetic refrigeration oil should be selected for the compressor, and only this type of oil can ensure good intermixability with the refrigerant. However, it is important to note that ester synthetic refrigeration oils are highly hygroscopic. This puts much higher requirements on the cleanliness and dryness of the equipment for engineers and operators who install refrigeration systems. The safe operating condition of the refrigeration system is that the residual humidity of 100ppm may cause damage to the entire system. 4. Mixed use of various mineral freezing oils. Different brands of refrigeration oil can be mixed when the viscosity is the same. The manufacturer has conducted tests in this regard. According to the compressor test results of the German compressor manufacturer's blog for more than 70 years, FUCHS; DEA;, MO-BIL, American CPI, ICI (acquired by CPI in 2007) and LUBIL's refrigeration oil have the same and actually the same viscosity Time can be mixed.