90K低温下带预冷的林德制冷机的系统设计  

System design by using Linder refrigerator with pre-cooling cycle at 90 K

作　　者：汤长征[1] 时阳[1] 王生软[1] 

机构地区：[1]郑州轻工业学院机电工程学院,郑州450002

出　　处：《低温工程》2008年第1期38-40,共3页Cryogenics

摘　　要：为了获得90 K的低温,提出1套带预冷循环的林德制冷系统,并分别对该系统的预冷循环和制冷循环进行了设计。预冷系统和制冷循环的制冷剂分别为R404A和R740。无热负荷时,设定低温箱的温度90 K,制冷量为140 W。该系统整体结构简单,获取温度低,在低温领域有较广泛的应用。To obtain the low temperature of 90 K, the Linder refrigeration cycle with pre-cooling cycle was set up. The pre-cooling cycle and refrigeration cycle of the system were designed. The refrigerants of pre-cooling cycle and refrigeration cycle were R404A and R740. The lowest temperature without heat loads was 90 K and the cooling capacity was 140 W. The system has simple structure and gets low temperature, which could be used widely in cryogenic regions.

关 键 词：预冷循环 制冷循环 林德制冷机 系统设计 

分 类 号：TB651[一般工业技术—制冷工程]