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1 前言由于空调与热泵行业广泛使用的制冷剂R22对臭氧层有破坏作用以及产生温室效应,因此,研制对臭氧层无破坏作用且温室效应尽量小的替代制冷剂且使之商品化,已成为当今制冷空调界关注的焦点之一。目前,对于空调制冷系统使用的R22工质替代,国际上有两条不同
1 Introduction Since the refrigerant R22 widely used in the air conditioning and heat pump industry has a damaging effect on the ozone layer and a greenhouse effect, developing and commercializing an alternative refrigerant that has no destructive effect on the ozone layer and minimizes the greenhouse effect has become a necessity for today’s refrigeration Air conditioning sector one of the focus of attention. At present, there are two different international standards for the replacement of R22 used in air conditioning and refrigeration systems