摘要
南方先进光源研究测试平台(SAPS-TP)为了给超导腔提供2 K测试环境,采用在氦池入口抽真空至饱和蒸气压的方式来获取2 K超流氦。研制一套减压降温真空机组用来抽取真空,详细介绍了设计和选型计算,并借鉴各大型2 K低温系统的使用经验,进行了优化。已完成20余次超导腔的性能测试,真空机组运行稳定,氦池压力、温度和液位等参数的控制精度达到设计指标。运行测试结果表明,所研制的减压降温真空机组性能满足设计要求。
2 K superfluid helium is obtained by vacuum pumping the helium to saturated va-por pressure at the entrance of the helium pool in Southern Advanced Photon Source Test Platform(SAPS-TP)in order to provide a cryogenic environment for the superconducting cavity.A set of decompression and cooling vacuum unit is developed for vacuum pumping.The design and selec-tion calculation are discussed in detail.The operation experience of various large-scale 2 K cryo-genic systems is used for reference and optimization.The performance test of the superconducting cavity has been completed for more than 20 times,and the vacuum unit exhibits a stable perform-ance and accurate control of the helium pool pressure,temperature and liquid level.Test results show that the performance of the developed vacuum unit meets the design requirements.
作者
丁美莹
李娜
叶斌
蔡毅杰
曹菁
杨榆
周冬冬
张玙
何昆
Ding Meiying;Li Na;Ye Bin;Cai Yijie;Cao Jing;Yang Yu;Zhou Dongdong;Zhang Yu;He Kun(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Spallation Neutron Source Science Center,Dongguan 523803,China)
出处
《低温工程》
CAS
CSCD
北大核心
2024年第3期38-44,92,共8页
Cryogenics
基金
广东东莞松山湖大科学装置开放课题计划(KFKT2022A08)
南方先进光源研究测试平台项目。
关键词
低温系统
2
K超流氦
选型设计
真空泵机组
cryogenic system
2 K superfluid helium
developed and design
pump unit
