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2020-09-19View Original

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请教作为丙烷制冷剂HC-290与R290命名规则含义是什么 GB/T 7778-2008 制冷剂编号方法和安全性分类 丙烷应该命名为R290。 《HG∕T4632-2014制冷剂用丙烷(HC-290)》 将其命名为HC-290,请问HC含义是什么(hydrocarbons?)?这种命名规则出自哪里? 请明白人指点,谢谢。
Reply #22020-09-19
HCFC: hydrogen containing chlorofluorocarbon 是氢氯氟烃的简称,主要包括制冷剂R22、R123、R141b、R142b等,臭氧层破坏系数仅仅是R11的百分之几,因此,《中国消耗臭氧层物质逐步淘汰**方案》将HCFC类物质视为CFC类物质的最重要的过渡性替代物质。 HFC:hydrofluorocarbons 是氢氟烃类的简称,主要包括制冷剂R134a,R125,R32,R407C,R410A、R152等,臭氧层破坏系数为0,但是气候变暖潜能值较高。 还有一类就是CFC,Chlorofluorocarbon,这个是氯氟烃类的简称,主要包括制冷剂R11、R12、R113、R114、R115、R500、R502等,由于其对臭氧层的破坏作用最大,被《蒙特利尔议定书》列为一类受控物质。此类物质目前已被我国逐步禁止使用。 PFC,Perfluorocarbon,全氟化碳 为区分氟利昂对大气臭氧层的破坏程度,常将R分别用CFC、HCFC、HFC、HC代替。 CFC——氯氟化碳,含氯、不含氢,公害物,严重破坏臭氧层禁用 HCFC——氢氯氟化碳,含氯、含氢,低公害物质属于过渡性物质 HFC——氢氟化碳,不含氯,无公害可作为替代物 HC——碳氢化合物,不含氯、不含氟、无公害可作为替代物

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