1.8 K超流氦系统中常温减压泵机组的控制与调试  

Control and Debugging of Warm Compressed Pump Unit in 1.8 K Superfluid Helium System

作　　者：贺圆 周芷伟[1] 席冠玉 杨鹏程 余强 朱志刚[1] 吴克平[1] HE Yuan;ZHOU Zhiwei;XI Guanyu;YANG Pengcheng;YU Qiang;ZHU Zhigang;WU Keping(Institute of Plasma Physics,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China;University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学院合肥物质科学研究院等离子体物理研究所,合肥230031 [2]中国科学技术大学,合肥230026

出　　处：《真空与低温》2024年第3期290-294,共5页Vacuum and Cryogenics

基　　金：国家重大基础研究设施-聚变堆主机关键系统综合研究设施(2018-000052-73-01-001228)。

摘　　要：核聚变领域和高能物理等领域内的大型科学装置的迅猛发展,促进了1.8 K/2 K超流氦系统的进步和广泛应用。作为获取超流氦的常用方法,介绍了1.8 K超流氦系统中常温减压泵机组的工艺流程、结构、设计参数、自动控制流程、远程监控的设计以及启动停机过程的性能测试验证。通过常温减压泵机组的逐步减压控制,快速且稳定地获取了1.8 K超流氦,泵组各实测参数均达到或优于设计参数。The rapid development of large-scale scientific devices in the fields of nuclear fusion and high-energy physics has promoted the progress and widespread application of 1.8 K/2 K superfluid helium systems.The room temperature decompression method is a common method to obtain superfluid helium.The process flow,structure,design parameters,automatic control process,remote monitoring design,start-up and shutdown process and performance test and verification of the warm compressed pump unit in the 1.8 K superfluid helium system were introduced.Through the gradual pressure reduction control of the warm compressed pump unit,1.8 K superfluid helium was obtained quickly and stably,and all measured parameters of the pump unit reached or exceeded the design parameters.

关 键 词：超流氦系统 常温减压泵 自动控制流程 减压控制 

分 类 号：TB657.8[一般工业技术—制冷工程] TB752