ITER 10kA高温超导电流引线测试装置低温系统的研究  

Cryogenic System Development for Test Facility of 10 kA High-Temperature-Superconductor Current Lead in International Thermonuclear Experimental Reactor

作　　者：倪清[1] 毕延芳[1] 丁开忠[1] 冯汉升[1] 周挺志[1] 沈光[1] 刘承连[1] 黄雄一[1] 宋云涛[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《真空科学与技术学报》2011年第5期607-611,共5页Chinese Journal of Vacuum Science and Technology

基　　金：国家973计划项目资助课题(2008CB717900);国家ITER计划专项支持项目(2008GB102000)

摘　　要：为ITER CC 10 kA高温超导电流引线服务的低温性能测试装置已研制完成,并成功运行。其低温系统主要由500W/4.5 K氦制冷机,真空杜瓦,低温组件(低温阀门,过冷槽,管道加热器,热防护层),汽化器及低温传输管线等部分组成。本文对真空杜瓦和过冷槽进行设计,并讨论该低温系统的冷却流程方案,最后通过电流引线10 kA稳态实验结果对低温系统的运行效果进行分析,结果表明该低温系统运行稳定,能满足ITER CC电流引线的测试需要。The cryogenic system,dedicated to the testing facility of the 10 kA high-temperature-superconductor current lead（HTS-CL） in international thermonuclear experimental reactor,has been successfully developed.The cryogenic system includes a 500W/4.5K helium refrigerator,a vacuum dewar,cryogenic modules（cryogenic control valves,sub-cooler,electrical heaters,and thermal shields）,carburetors,a set of cryogenic pipelines,and control unit.The discussions focused on the technical requirements and the design considerations： such as the design of vacuum Dewar and the sub-cooler,and the scheme of the cooling circuit.The field-test results of the newly-developed cryogenic system show that it is capable of doing a good job.

关 键 词：高温超导电流引线 低温系统 真空杜瓦 过冷槽 冷却流程 

分 类 号：TB661[一般工业技术—制冷工程] TB79