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Invention Publication
CN110325803A 用于微增压器型超市制冷系统的油管理 有权

用于微增压器型超市制冷系统的油管理
Abstract:
一种制冷系统，包括第一压缩机和第二压缩机以及油分离器。该油分离器包括用于从第一压缩机接收制冷剂和油的入口、制冷剂出口和出油口。油分离器将油与制冷剂分离。油分离器的位于与制冷剂出口相交的水平面下方的部分收集被分离的油并且具有等于第一压缩机油供给量的容积。第一压缩机油供给量大于等于第一压缩机初始充油量的100％并且小于等于第一压缩机初始充油量的250％。当该部分中的油量小于等于第一压缩机油供给量时，第一压缩机从出油口接收油。当该部分中的油量大于第一压缩机油供给量时，第二压缩机从制冷剂出口接收油。
Abstract(English):

A refrigeration system includes first and second compressors and an oil separator. The oil separator includes an inlet for receiving refrigerant and oil from the first compressor, a refrigerant outlet, and an oil outlet. The oil separator separates the oil from the refrigerant. A portion of the oil separator below a horizontal plane intersecting the refrigerant outlet collects separated oil and has a volume equal to a first compressor oil supply. The first compressor oil supply is greater than or equal to 100% and less than or equal to 250% of a first compressor initial oil charge. The first compressor receives oil from the oil outlet when an amount of oil in the portion is less than or equal to the first compressor oil supply. The second compressor receives oil from the refrigerant outletwhen the amount of oil in the portion is greater than the first compressor oil supply.

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