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在氟利昂制冷系统内,由于制冷剂和油相互溶解,当制冷压缩机投入运行时,即使在其排气端设有油分离器,但制冷剂中仍然会挟杂有润滑油随制冷剂进入制冷系统。在蒸发器内由于液体制冷剂的汽化,润滑油与制冷剂分离,怎么使分离后的润滑油能同制冷剂一起循环,而润滑油回至压缩机的曲轴箱就成了氟利昂制冷系统所必须具备的基本条件之一。为了解决压缩机曲轴箱的回油和机器的安全运行,我们在氟利昂制冷系统内采用了通过气液分离器回油的方法。
In the Freon refrigeration system, due to the mutual dissolution of the refrigerant and the oil, when the refrigerant compressor is put into operation, even if the oil separator is provided at the exhaust end, the refrigerant will still be mixed with the lubricating oil and enter the refrigeration with the refrigerant system. In the evaporator due to vaporization of liquid refrigerant, oil and refrigerant separation, how to separate the oil with the refrigerant can be recycled, and the lubricant back to the compressor crankcase has become Freon refrigeration system must be Have one of the basic conditions. In order to solve the compressor crankcase oil return and the safe operation of the machine, we have adopted a method of returning oil through the gas-liquid separator in the Freon refrigeration system.