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摘 要 ：制冷剂R22自1936年开始商业化生产以来，因为其优越的热力学性能，已成为制冷装置中应用最广泛的制冷剂之一，但由于它的臭氧层破坏系数和全球变暖系数较高，进一步使用会破坏臭氧层并产生温室效应而即将被限制使用，是继R12之后第二批要被淘汰的制冷剂。因此研究和选择新的替代工质已是势在必行。本文对R22的几种主要替代工质如R407C和R410A等进行了简要介绍，同时还介绍了几种新型的环保制冷剂替代物如制冷剂R290，THR03和液化石油气等，并对这些替代工质的各自性能特点进行了简要的阐述。 关键词： 制冷剂替代 R22 氟化烃类(HFCs) 天然制冷剂 新型制冷剂 The Alternative Refrigerants Of R22 Ji Liming Qi Yingxia University Of Shang Hai For Science And Technology Abstract: Since R22 had been produced and applied in1936, R22 is widely used in the refrigeration plants because of its excellent thermodynamic properties. However, R22 is higher of the ODP and GWP ,and it is also the second group refrigerants to be abandoned after R12, so it is the trend to research and choose the new alternative refrigerants of R22.In this paper, some alternative refrigerants of R22 are introduced, such as R407C、R410A、R290、THR03 and LPG, and their performances are also analyzed. Keywords : refrigerant substitutes R22 HFCs natural refrigerants new refrigerants