高温超导悬浮装置的冷却结构设计与试验
首发时间:2017-07-04
摘要:本文以微小推力测量领域为背景,主要研究了高温超导磁悬浮微小推力测量装置中超导悬浮单元的低温冷却结构。推力测量装置的性能很大程度上依赖超导体低温下良好的超导特性。由于超导体的低导热率和各向异性使超导体通常表现出不良的温度冷却特性,因此超导体的低温制冷结构设计至关重要。对常规超导磁悬浮单元构型进行了冷却过程温度场和涡流损耗的仿真分析,针对分析结果设计了预紧的双导热通路冷却结构。经过仿真计算分析和试验验证,证明结构提高了冷却效率,显著降低了超导体的平衡温度并使内部的温度更加均匀。引入了多种非金属导热材料,在保证良好冷却效果的同时降低了结构的涡流损耗。
For information in English, please click here
Design and Experimental Research of Cooling Structure used in HTS Magnetic Levitation Device
Abstract:Under the background of microthrust measurement field, the superconductor cryogenic cooling structure used in high temperature superconductive magnetic levitation microthrust measurement deviece was studied. For a very large extent, the performance of this device depends on good superconducting properties of the superconductor in low temperature.Superconductor usually shows adverse cooling properties due to its low thermal conductivity and anisotropy, so it's very important to design the cooling structure for superconductor. The cooling effect and eddy current loss of traditional structure were simulating calculated, and then the cooling structure of preloaded double heat conduction pathway was designed according to the calculation results. Multiple experiments indicates that the cooling structure could improve the cooling efficiency, significantly reduce the working tempreture of superconductor, and make the tempreture inside more uniform. Varieties of non-metallice materials were applied,this method could reduce the eddy current loss with ensuring a good cooling effect.
Keywords: microthrust measurement superconductor cooling structure design experiment
论文图表:
引用
No.4737908120297214****
同行评议
共计0人参与
勘误表
高温超导悬浮装置的冷却结构设计与试验
评论
全部评论0/1000