R290制冷剂在商用冷柜上的应用研究  

Refrigerant Performance Study on R290 Used in Commercial Refrigerators

作　　者：刘英志[1,2] 刘业凤[1] 卞伟[1,2] 王志海[1,2] 

机构地区：[1]上海理工大学能源与动力工程学院,上海200031 [2]青岛海尔特种电冰柜有限公司,青岛266101

出　　处：《制冷技术》2012年第1期58-60,共3页Chinese Journal of Refrigeration Technology

摘　　要：制冷剂R290作为一种环保制冷剂,已在小型全封闭系统中逐渐推广应用。R290作为一种可行的制冷剂用在商用冷柜上具有良好的能效,但对于丙烷的易燃性必须采取切实可行的措施。本文根据长期的设计和应用经验,在分析了R290制冷剂应用特性的基础上,给出了R290的工作压力、充注量等应用特性,给出了与之匹配的材料选择、系统节流装置的选用,在冷柜系统及结构设计方面给出了控制制冷剂泄漏量、避免泄露的制冷剂聚集、避免出现点火源、避免点火源与可燃源共同存在等安全措施。Refrigerant R290 is a possible replacement for other refrigerant in small hermetic systems,like factory made commercial refrigerators and freezers.R290 is a possible refrigerant for commercial refrigerators and freezers,with good energy efficiency,but special care has to be taken to the flammability of propane.Based on our years of experience,we analyze its applicable characteristics of its working pressure,charging amount and chosen of the matched materials,selection of the expansion devices and other applications,and give out how to control the refrigerant leakage avoid of the refrigerant accumulation and ignition sparks,and coexist of the ignition sparks and flammable sources.In the paper,safety measures are introduced.

关 键 词：环保制冷剂 R290 材料 安全 节能 

分 类 号：TB64[一般工业技术—制冷工程]