低温冷风机热气融霜实验研究  

Experimental investigation of hot gas defrosting in cold storage

作　　者：刘训海[1] 朱华[1] 周健健[1] 姜敬德[1] 

机构地区：[1]上海理工大学,上海200093

出　　处：《低温工程》2008年第1期57-60,共4页Cryogenics

基　　金：上海市重点学科建设资助项目(编号T0503)

摘　　要：简述了低温冷库冷风机的热气融霜方式,对一座低温实验冷库进行了热气融霜实验。研究了在不同库温情况下的融霜过程,从库温、凝水量、温度场变化以及制冷系统运行状况等方面,分析了热气融霜对低温冷库的影响。实验结果表明热气融霜具有时间短、对库温影响较小等优点。Hot gas defrosting applied in cold storage was presented and defrosting process investigated by experiment was studied under different cold storage temperatures. The influerence of hot gas defrosting on cold storage was analyzed through the aspects of cold storage temperature, quantity of condensate, temperature distribution variation and the working condition of refrigeration system. The results show that hot gas defrosting has advantages of short defrosting-time and little influence on cold storage, temperature and so on.

关 键 词：热气融霜 低温冷风机 温度场 实验研究 

分 类 号：TB657[一般工业技术—制冷工程]