气氦制冷系统的研制  

Development of a New Helium Refrigerator System

作　　者：蔡朝恩[1] 黄本诚[1] 李高[1] 王紫娟[1] 

机构地区：[1]北京卫星环境工程研究所,北京100029

出　　处：《中国空间科学技术》2002年第3期70-74,共5页Chinese Space Science and Technology

摘　　要：气氦制冷系统是为内装式深冷泵提供冷源的一套系统。它是采用带液氮预冷的布雷顿闭式循环系统。设计了先进的氦气螺杆压缩机及先进的氦气透平膨胀机 ,同时还设计了独特的可拆式的多功能集成的冷箱系统及具有独特结构形式的内纯化系统 ,自动化程度高 ,该系统研制成功后 ,为“神舟一号”试验飞船 ,提供了做热真空试验的条件 ,同时还为今后需要 2 0The new helium refrigerator of space environment simulator supplies the cold environment for in cryo pump. Sucessful development of helium refrigerator represens the superiority of design. The advanced helium screw compressor, turbine dismantled vessel with integral functions and in purfier system with particular configuration are designed. This system is of high automatization We have conducted the thermal test of 'shenzhou' experimental spacecraft by using this system In the future it will creat the guarantee condition for all kinds of spacecraft the tests of which need a 20K cold background.

关 键 词：气氦制冷系统 低温制冷 航天器 试验设备 

分 类 号：V524[航空宇航科学与技术—人机与环境工程]