一种五级自动复叠制冷系统的初步试验研究  

The Exploratory Research on Mixed Refrigerants of A Five-Stage Autocascade Refrigeration System

作　　者：赵巍[1] 张海东[1] 张华[1] 

机构地区：[1]上海理工大学制冷技术研究所,上海200093

出　　处：《制冷学报》2011年第1期28-32,共5页Journal of Refrigeration

基　　金：上海市重点学科建设项目(No．S30503)资助

摘　　要：提出了一种五级自动复叠制冷循环,根据不同的系统采用不同的制冷工质和不同的混合配比,可以获得不同的蒸发温度,分析了非共沸混合工质的组分选取原则并选取了组分,探讨了适用于自动复叠制冷系统混合工质计算的方法,根据要求选择了R22、R23、R14、R740和R728五种制冷工质作为系统循环工质,对混合工质的配比进行了模拟计算,得出了理论模拟最优配比并通过试验研究加以比较确定。A five-stage Auto-cascade refrigeration cycle（ARC） is brought forward.According to the experiences that different systems with different components and proportion of mixed refrigerants can result in different evaporating temperature,the components selecting principle of non-azeotropic mixed-refrigerants is analyzed and the components are selected.The calculated methods of mixtures in ARC system is discussed.R22,R23,R14,R740 and R728 are selected as refrigerants in this system based on the requested conditions.Numerical simulation has been done to get an optimization ratio of mixture,which is validated by further comparison through the experimentation.

关 键 词：热工学 自动复叠制冷 混合工质 组分选取 模拟计算 最优配比 

分 类 号：TB657[一般工业技术—制冷工程] TB615