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                                                                                                                                                                      1. 首页 >> 新闻中心 >> 冠特制冷复叠制冷技术

                                                                                                                                                                        冠特制冷复叠制冷技术

                                                                                                                                                                      2. 发布日期:2021-11-17      浏览次数:362
                                                                                                                                                                        •                                                        冠特制冷复叠制冷技术

                                                                                                                                                                          低温复叠制冷机组大都以R22/R13为制冷剂。为满足环保要求,冠特制冷采用R404A/R23作制冷剂。其中,R404A由R125(标准沸点-49℃)、R143a(标准沸点-47.2℃)和R134a(标准沸点-26.1℃)按质量分数44∶52∶4混合而成,具有与....R22(标准沸点-40.8℃)较为相近的热物理性质,标准沸点为-46.6℃,ODP和CLP值为零,无毒,安全性高,GWP值为4 540。有试验表明:以R404A为制冷剂的制冷机组与以R22为制冷剂的同一机组相比较,其制冷量会稍微增大但其消耗功率会增大更多,综合来看其COP比R22机组要小一些,这是不利的一方面[2-3];R23标准沸点-82.1℃,ODP和CLP为零,无毒,安全性高,GWP稍高,约为14 800[4]

                                                                                                                                                                           

                                                                                                                                                                           

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