超导波荡器样机冷屏冷却系统设计与应用  

Design and application of thermal shield cooling system for superconducting undulator prototype

作　　者：赵乾坤 倪清 王金坤 Zhao Qiankun;Ni Qing;Wang Jinkun(Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 200120,China;Shanghai University of Science and Technology,Shanghai 200120,China)

机构地区：[1]中国科学院上海高等研究院,上海200120 [2]上海科技大学,上海200120

出　　处：《低温工程》2022年第3期58-63,共6页Cryogenics

基　　金：上海市市级科技重大专项(NO.2017SHZDZX02)资助。

摘　　要：设计了一套超导波荡器样机(Superconducting Undulator Prototype,SCUP)冷屏冷却系统,通过对斯特林制冷机制冷量和氦循环风扇转速进行分析,论证了冷却系统的可行性。实验数据表明,冷屏在斯特林制冷机运行约6小时后冷却至50 K以下,且冷屏上最大温差不超过1.6 K,温度分布较为均匀;氦循环风扇质量流量为35.7 g/s,满足设计要求。The cold shield cooling system of superconducting undulator prototype was designed,and the feasibility of the cooling system was proved by analyzing the cooling capacity of Stirling cryocooler and the rotational speed of helium cycle fan.Experimental results indicates that the thermal shield cools down to below 50 K after the Stirling cryocooler runs for about 6 hours,and the maximum temperature difference on thermal shield does not exceed 1.6 K,and the temperature distribution is relatively uniform.The mass flow of helium cycle fan is 35 g/s,which meets the design requirements.

关 键 词：超导波荡器样机 冷屏冷却系统 斯特林制冷机 氦循环风扇 

分 类 号：TB651[一般工业技术—制冷工程] TB663