宇航学报 ›› 2015, Vol. 36 ›› Issue (7): 855-860.doi: 10.3873/j.issn.1000-1328.2015.07.016

• 环境试验与器件 • 上一篇    

一种空间极低温吸附制冷机的设计与实现

罗宝军,王兆利,闫涛,梁惊涛   

  1. 中国科学院理化技术研究所,北京 100190
  • 收稿日期:2014-07-30 修回日期:2015-01-27 出版日期:2015-07-15 发布日期:2015-07-25
  • 基金资助:

    国家自然科学基金(51206176)

Design and Implementation of a Space Sub Kelvin Sorption Cooler

LUO Bao jun, WANG Zhao li, YAN Tao, LIANG Jing tao   

  1. Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2014-07-30 Revised:2015-01-27 Online:2015-07-15 Published:2015-07-25

摘要:

针对极低温吸附制冷技术的热沉制冷系统,系统分析了极低温吸附制冷的特性,研究了热沉温度对极低温吸附制冷性能的影响,研制了一台极低温吸附制冷机样机,工质气体为氦4,在1.5W@4.2K G-M制冷机基础上实现了50μW@0.8K的制冷性能,验证了基于机械制冷系统的更高热沉温度技术的可行性,这一成果为深空探测和载人空间站相关研究提供了技术支撑。

关键词: 极低温, 吸附制冷, 热沉温度, 氦4, 深空探测

Abstract:

In order to match a suitable heat sink cooling system, characteristics of sub-Kelvin sorption cooling are analyzed. The effect of heat sink temperature on the performance of sorption cooler is then studied. A prototype of sorption cooler is designed and investigated. Based on a pre-cooler of 1.5W@4.2K G-M refrigerator, performance of 50μW@0.8K is obtained for the sorption cooler with 4He as the working fluid. The experimental results validate the technical feasibility of a higher heat sink temperature obtained by proposed mechanical cooling system, and the research results will also provide technical support of sub-Kelvin cooling for China′s deep space exploration and manned space station program.

Key words: Sub-Kelvin, Sorption cooling, Heat sink temperature, Helium 4, Deep space exploration

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