1.5T超导磁体低温系统的结构设计与研制

Structural design and development of cryogenic system for 1.5 T superconducting magnet

本文针对等离子体发动机中超导磁体及其低温系统的设计要求,阐述了低温系统的设计方案,通过ANSYS软件对低温系统的主要零部件进行了结构强度分析,计算了超导磁体系统的低温热负荷,搭建了测试平台对超导磁体开展了通电测试。结果表明:超导磁体低温系统设计方案可行、制冷机选型准确,测试过程中低温系统各结构温度保持稳定、可以达到预期指标。

According to the design requirements of superconducting magnet in plasma engine and its cryogenic system,the design scheme of the cryogenic system was described.Then the structural strength analysis of the main components of the cryogenic system was performed by using ANSYS software.The low-temperature thermal load of the superconducting magnet system was calculated.A testing platform was set up for conducting electrical tests on the superconducting magnet.The results indicate that the design scheme for the cryogenic system for superconducting magnetis is feasible,the selection of the refrigerator is accurate,and the temperatures of the various structures in the cryogenic system are maintained stably during testing,which satisfy the expected target.