Experimental investigation on conduction cooling of large diameter superconducting induction heating magnet

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Hu, Lei^1 ; Ma, Tao^1 ; Dai, Shaotao^1 ; Zhang, Teng^1 ; Wang, Bangzhu^1

R and D Center for Applied Superconducting Technology, Beijing Jiao Tong University, No.3 Shangyuancun, Haidian District, Beijing.

100044, China^1

关键词: Conduction-cooling;    Conductive cooling;    Experimental investigations;    Experimental platform;    Heating technology;    High temperature superconducting;    Induction heating system;    Non-ferromagnetic metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/7/072028/pdf
DOI  :  10.1088/1757-899X/490/7/072028

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Compared with the traditional high-frequency AC induction heating technology, the high-temperature superconducting DC induction heating technology can greatly improve the diathermy processing efficiency of low resistivity, non-ferromagnetic metal materials. Thermal stability of superconducting magnet is the key to ensure the safe and stable operation of high temperature superconducting induction heating system. Large diameter superconducting magnet is mostly cooled by immersion in cryogenic medium, but there is no precedent for conductive cooling of such magnet in the world. In this paper, we built a conducting cooling experimental platform for superconducting magnet. Temperature sensors arranged in different positions of the magnet are used to monitor the temperature distribution of each part in real time. According to the experimental results, the cooling circuit is optimized and re-tested. And then the conduction cooling experiment of large diameter superconducting magnet is carried out. The experimental results show that the optimized cooling method can sufficiently cool the superconducting magnet.