一种混合工质遴选、配比方法探讨及实验验证  

One method for mixed-refrigerant selection and experimental validation

作　　者：张镨[1] 鹿来运[1] 郭开华[1] 

机构地区：[1]中山大学工学院,广州510006

出　　处：《低温工程》2013年第6期26-30,47,共6页Cryogenics

基　　金：广东省教育厅液化天然气与低温技术重点实验室资助项目(39000-3211101);中山大学-BP液化天然气中心资助项目(99103-9390001)

摘　　要：通过对混合工质制冷原理的分析,提出了工质遴选应遵循"较高沸点工质低压蒸发温度接近于较低沸点工质高压冷凝温度"的原则,配比应遵循"低沸点工质先确定,高沸点工质后配比"的原则;进行了混合工质低温实验,实验结果验证了提出的混合工质选取方法原理上的正确性。Through the refrigeration mechanism analysis of mixed-refrigerant （MR） , the refrigerant se- lecting principle was concluded that the low pressure evaporating temperature of higher boiling point （BP） refrigerant should be closed to high pressure condensing temperature of lower BP, and the rule was proposed that first to determine the lower BP refrigerants composition and then the higher BP components of MR. The validation was performed on the MR low temperature pilot plant, the experimental result validated the pro- posed MR selecting method.

关 键 词：温焓特性 混合工质选取 混合工质组成 低温系统 气体液化实验 

分 类 号：TB663[一般工业技术—制冷工程]