分离型两级脉冲管制冷机的实验研究  

Separated Version Two-stage Pulse Tube Refrigerator

作　　者：杨鲁伟[1] 朱文秀[1] 梁惊涛[1] 周远[1] 孙卫佳[1] 

机构地区：[1]中国科学院低温技术实验中心

出　　处：《低温与超导》1999年第1期1-5,共5页Cryogenics and Superconductivity

基　　金：国家超导中心资助

摘　　要：】脉冲管制冷机的实用化是目前脉冲管制冷机的一个主要研究方向。文中介绍了作者为提高脉冲管效率而研究的一种分离结构的两级脉冲管制冷机。实验获得了１１．７Ｋ的最低温度，制冷量３Ｗ／２０Ｋ。采用名义功率２．２ｋＷＧ－Ｍ压缩机驱动得到了１２．４Ｋ的最低温度，制冷量２Ｗ／１８．５Ｋ，４Ｗ／２４．６Ｋ，实际输入功率约１．５ｋＷ。这一结果已基本达到了实用化应用的要求。As to practical application of pulse tube refrigerator at 20K scope, a kind separated version two-stage pulse tube refrigerator driven by G-M compressor is designed and fabricated. Through experiments lowest temperature of 11.7K and cooling power of 3W/20K were acquired. When a nominal 2.2kW G-M compressor drives this cooler, lowest temperature of 12.4K and cooling power of 2W/18.5K is acquired. Such a good result makes this refrigerator possible to practical application in actual instead of two-stage G-M refrigerator.

关 键 词：分离型 两级脉冲管 制冷机 效率 实验 

分 类 号：TB651[一般工业技术—制冷工程]