液氮温区同轴脉冲管制冷机的实验研究  

EXPERIMENTAL STUDIES OF THE CO-AXIAL PULSE TUBE REFRIGERATOR OF TEMPERATURE RANGE OF LIQUID NITROGEN

作　　者：袁鹍[1] 牛强[1] 梁惊涛[1] 巨永林[1] 

机构地区：[1]中国科学院理化技术研究所,北京100080

出　　处：《真空与低温》2002年第1期55-57,61,共4页Vacuum and Cryogenics

摘　　要：脉冲管制冷机冷头朝上布置可以使制冷机与超导器件的耦合更方便 ,但对G -M型脉冲管制冷机 ,重力会对这种布置方式产生不利影响。对双向进气型脉冲管制冷机 ,直流和耦合传热会共同影响脉冲管制冷机的性能。介绍了液氮温区G -M型同轴脉冲管制冷机的实验结果 。Placing the cold head at the upper position can facilitate the connection of the with the super_conducting devices.However,for G-M type PTR,the gravity has the disadvantage influence on this situation.For double inlet PTR,DC flow and coupling heat transfer affect the performance of the refrigerator together.The experimental results of G-M type co-axial PTR at the temperature range of liquid nitrogen with the focus on the temperature profile of the regenerator are presented and the effect of the gravity on the perfomance of the PTR is described.

关 键 词：脉冲管制冷机 液氮温区 蓄冷器 温度分布 制冷性能 实验研究 

分 类 号：TB651[一般工业技术—制冷工程]