带旁通的三级自动复叠制冷系统性能研究  

Study on performance of three-stage auto-cascade refrigeration system with bypass

作　　者：李娟娟[1] 张华[1] 芮胜军[1] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200093

出　　处：《低温与超导》2014年第1期78-81,共4页Cryogenics and Superconductivity

摘　　要：主要讲述了带两路旁通系统的三级自动复叠制冷系统的搭建,采用美国标准技术研究所(NIST)开发的REFPROP 8.0程序计算混合工质的热力性质并确定混合工质的成分及配比。在此基础上,通过实验研究旁通管路对系统吸排气压力、温度以及降温特性的影响,以期能找到一种适合自动复叠制冷系统的有效的调节机制。tins mesm was malnty about the construction ot tile three -stage auto- cascade retngeratlon system with two by - passes. The REFPROP 8.0 developed by NIST was applied to calculate thermodynamic properties of the mixed refrigerant and determine the components and proportion of the refrigerant. In order to find an effective control mechanism suited to auto - cas- cade system, further experiments were conducted to find how the by -pass influenced cooling performance and the pressure and temperature of compressor suction and exhaust.

关 键 词：旁通 三级自动复叠 混合工质 吸排气温度 吸排气压力 

分 类 号：TB65[一般工业技术—制冷工程]