R290与空气混合气体燃烧爆炸反应特征分析

Flammability and Explosion Analysis on Mixed-gas of R290 and Air

R290制冷剂与R22制冷剂主要物性参数接近,是R22制冷剂的理想替代物,但R290具有可燃性。本文介绍了与R290制冷剂相关的主要安全标准,对R290与空气混合气体燃烧爆炸反应参数进行热力学计算,得到不同压力下R290的燃烧爆炸浓度范围。

R290 is a good alternative refrigerant of R22,since R290 has the similar property as R22,but R290 is flammable.The paper introduces the main safety standards about R290,and performs the thermodynamic analysis on flammability and explosion of the mixed- gas of R290 and air.Then the explosive and flammability concentration limits is obtained.