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一、前言: 根据《蒙特利尔条约》的实施要求,发达国家已经停止生产CFC—12,至今被公认为最有替代功能的R134a制冷剂,正在被世界各国所采用。我国的制冷与空调行业,在经过几年的探索实践,采取了几种方案并举的CFC类物质的替代格局。全国冰箱制造行业已经逐步开始采用R134a,在空调行业中,从1994年开始进口的汽车空调,其制冷剂基本上均采用R134a,我国生产的汽车空调中也已形成一定批量的产品。鉴于当前R12与R134a两种制冷剂使用过渡期,笔者依据两种制冷剂的性能比较,从各自的特点出发,浅谈在实际使用和维修时,须注意的问题。
I. Preface: According to the implementation requirements of the Montreal Treaty, the developed countries have stopped producing CFC-12 and the R134a refrigerant which is recognized as the most alternative function until now has been adopted by all countries in the world. China’s refrigeration and air-conditioning industry, after several years of exploration and practice, has taken several programs simultaneously CFC alternatives. National refrigerator manufacturing industry has gradually begun to use R134a, in the air conditioning industry, imported automobile air conditioners from 1994, the refrigerants are basically used R134a, China’s production of automotive air-conditioning has also formed a certain batch of products. In view of the current R12 and R134a two refrigerants transition period, the author based on the performance of the two refrigerants, starting from their own characteristics, talk about the actual use and maintenance, should pay attention to the problem.