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本文通过对活塞式制冷压缩机分别应用 R404A 与 R22在低温工况下的对比实验研究,分析使用环保型制冷剂 R404A 替换 R22的可行性,为实际应用打下基础。
In this paper, the piston compressor refrigeration R404A and R22 were used in the comparative study of low temperature conditions, analysis of the feasibility of using environmentally friendly refrigerant R404A replace R22, and lay the foundation for the practical application.