35 T水冷磁体高场线圈换热特性研究  

Study on Heat Transfer Characteristics of High Field Coils of 35 T Water-Cooled Magnets

作　　者：王泗明 李见 王忠建 孙锡鑫 苏剑 张勇[2] WANG Siming;LIJian;WANG Zhongjian;SUN Xixin;SUJian;ZHANG Yong(Anhui Jianzhu University,Institute of Mechanicaland Engineering,Hefei 230601,China;High Magnetic Field Laboratory,Hefei Institutes of Physical Science,Chinese Academy of Sciences,Hefei 230031,China)

机构地区：[1]安徽建筑大学机械与电气工程学院,合肥230601 [2]中国科学院合肥物质科学研究院强磁场科学中心,合肥230031

出　　处：《低温物理学报》2024年第3期196-202,共7页Low Temperature Physical Letters

基　　金：中科院合肥大科学中心重点研发项目(项目编号:2022HSCKPRD001)资助的课题。

摘　　要：水冷磁体消耗数十兆瓦功率,其高场线圈极高功率密度带来的冷却问题是制约磁体性能提升的关键因素之一.本文以稳态强磁场实验设施中35 T水冷磁体高场线圈为研究对象,通过实验获得10000 A、20000 A、30000 A、36650 A下的线圈平均温度为9.98℃、12.84℃、24.07℃、45.96℃、60.32℃,之后开展对应电流下线圈三维电-热-流体多场耦合仿真得到模拟线圈平均温度为12.09℃、22.62℃、42.14℃、60.85℃.最后通过对仿真模拟平均温度与实测平均温度进行对比分析确定仿真平均温度的修正系数为1.1,确定了在高场线圈温度安全裕度内的磁场空间提升还有7%左右.Water-cooled magnets consume tens of megawatts of power,and the cooling problem caused by the extremely high power density of the high-field coils is one of the key factors restricting the performance improvement of the magnets.In this paper,the 35 T water-cooled magnet high field coil in the steady-state high magnetic field experimental facility is taken as the research object,and the average coil temperature under 10000 A,20000 A,30000 A and 36650 A is 9.98℃,12.84℃,24.07℃,45.96℃and 60.32℃.The average temperature of the simulated coil is 12.09℃,22.62℃,42.14℃and 60.85℃.Finally,by comparing the simulated average temperature with the measured average temperature,the correction coefficient of the simulated average temperature is determined to be 1.1,and the magnetic field space within the high field coil temperature safety margin is determined to increase by about 7%.

关 键 词：水冷磁体 数值模拟 换热分析 

分 类 号：O441.2[理学—电磁学] TK124[理学—物理]