高性能G-M型单级脉管制冷机研究  

Investigation on High-Performance Single-Stage GM-Type Pulse Tube Cooler

作　　者：蒋彦龙[1] 陈国邦[2] Thummes Guenter 

机构地区：[1]南京航空航天大学航空宇航学院,南京210016 [2]浙江大学机械与能源工程学院,杭州310027 [3]德国吉森大学应用物理系,德国35392

出　　处：《南京航空航天大学学报》2004年第4期496-499,共4页Journal of Nanjing University of Aeronautics & Astronautics

基　　金：教育部博士点基金 ( 2 0 0 1 0 3 3 5 0 1 0 )资助项目 ;国家自然科学基金 ( 5 0 1 0 60 1 3 )资助项目 ;南京航空航天大学引进人才科研基金;德国学术交流中心 ( DAAD)资助项目

摘　　要：从直流抑制角度出发 ,开展了高性能 G-M型单级脉管制冷机的研究。在对各种直流抑制方式进行比较的基础上 ,利用双向进气阀流量系数的方向性 ,采用两个并联排列、指示箭头方向相反的阀门 ,称之为并联逆向双阀双向进气结构对直流进行抑制 ,成功地解决了传统单阀双向进气结构脉管制冷机的直流问题。在 2 k W( RW2 )和 4k W( CP40 0 0 )压缩机驱动时分别获得了 1 8.4K和 1 4.7K的最低制冷温度 ,对应在 3 0 K的制冷量为 1 1 .5 W和 2 9.5 W,这些都是目前单级脉管制冷机公开报道的最好结果。Experimental investigation on DC flow suppression and refrigeration characteristics of a high-performance single-stage GM-type pulse tube cooler has been undertaken. The influence of DC flow induced by the introduction of double-inlet on the refrigeration performance of the cooler is experimentally examined. Two parallel-placed needle valves with opposite flow direction called double-valved configuration, instead of conventional single-valved configuration as the double-inlet is successfully used in this experiment to reduce the DC flow. With a double-valved configuration, 18.4 K and 14.7 K (minimum temperature) are reached driven by RW2 and CP4000 compressor, respectively, and 11.5 W and 29.5 W (cooling power) at 30 K are obtained as well.

关 键 词：单级脉管制冷机 制冷温度 实验装置 制冷量 进气阀 流量系数 

分 类 号：TB651[一般工业技术—制冷工程]