摘要
报道了一种非金属杜瓦装置的研制,以满足高温超导磁悬浮车系统对液氮低温容器的要求。这种长方体低温容器采用无磁非金属材料制备,从而可以避免由涡流导致的阻力和热损耗,以及由磁性导致的吸引力等不利于高温超导磁悬浮车系统的影响。容器的液氮损耗率为0.55L/h。综合性能测试表明,该非金属杜瓦可以作为高温超导磁浮车低温容器的理想选择之一。
In order to meet the needs of high temperature superconducting （HTS） maglev system on liquid nitrogen vessel, a new type of Dewar is presented in this paper. It is rectangle - shape liquid nitrogen vessel made of nonmetal materials without magnetism, thus will not cause eddy current effect on the moving of it above the permanent magnet gnideway. Experimental results indicate that the vapor loss of liquid nitrogen in this vessel is less than 0.55L/hour, which means that the vessel can meet the needs of the experiments on HTS maglev system.
出处
《低温与超导》
CAS
CSCD
北大核心
2009年第10期4-7,共4页
Cryogenics and Superconductivity
基金
长江学者与创新团队计划项目(IRT0751)资助
关键词
非金属低温杜瓦
超导磁浮车
涡流损耗
Nonmetal low- temperature dewar, Superconducting maglev vehicles, Eddy current loss
