摘要
SHINE测试站低温系统主要包括三大子系统:低温制冷机系统、低温工质传输与分配系统以及辅助系统,其中真空系统作为低温系统中的辅助系统,为制冷机、低温传输管线等系统提供重要的性能保障。本文介绍了SHINE测试站低温传输线真空系统,包括总体布局设计,物理设计需求,真空指标,真空系统设计,关键设备选型,安装和调试等工作。目前,测试站各真空区段室温下的平均稳态真空度均优于1.0×10^(-2)Pa,2 K低温状态时平均稳态真空度优于1.0×10^(-3)Pa,满足低温传输管线物理需求,各非标真空设备、真空获得及测量设备等经过一年多的连续运行,可靠稳定无故障,因此测试站真空系统的研制方案能满足物理指标和实际工程要求,为绝热真空腔体真空系统设计积累了经验。
The cryogenic system of SHINE test station mainly includes three subsystems:cryogenic refrigerator system,cryogenic medium transmission and distribution system and auxiliary system.As the auxiliary system of the cryogenic system,the vacuum system provides important performance guarantee for the cryogenic refrigerator,cryogenic transfer line and other systems.This paper introduces SHINE cryogenic transfer line and valve box vacuum system,including layout design,physical requirements,vacuum parameters,vacuum system design,key equipments,installation and commissioning work;At present,the average steady-state vacuum at room temperature of each vacuum unit is superior to 1.0×10^(−2) Pa,and the average steady-state vacuum degree at 2 K low temperature is better than 1.0×10^(−3) Pa,which meets the physical demand of cryogenic transfer line.Non-standard vacuum equipment,vacuum acquisition and measurement equipment,etc.,have been running continuously for a year,and are reliable,stable and fault-free.Therefore,the design scheme of the vacuum system of the test station can meet the physical indicators and practical engineering requirements.
作者
王金坤
倪清
赵乾坤
WANG Jinkun;NI Qing;ZHAO Qiankun(Shanghai Tech University,Shanghai 201210,China;The Shanghai Advanced Research Institute,Shanghai 201210,China)
出处
《真空科学与技术学报》
EI
CAS
CSCD
北大核心
2023年第6期504-512,共9页
Chinese Journal of Vacuum Science and Technology
基金
上海市市级科技重大专项项目(2017SHZDZX02)。
关键词
低温传输管线
真空系统
真空获得
稳态真空
Cryogenic transfer line
Vacuum system
Vacuum obtaining
Static vacuum pressure
