高真空多层绝热低温容器真空丧失后的传热研究  

Study on the heat transfer of high-vacuum-multilayer-insulation tank after catastrophic loss of insulating vacuum

作　　者：谢高峰[1] 汪荣顺[1] 魏蔚[1] 

机构地区：[1]上海交通大学制冷与低温研究所,上海200240

出　　处：《低温与超导》2011年第6期6-12,共7页Cryogenics and Superconductivity

摘　　要：高真空多层绝热低温容器的绝热夹层发生完全的真空丧失事故后,由于自然对流换热的原因,其绝热夹层的漏热量会急剧增加。在搭建了高真空多层绝热低温容器完全真空丧失后的传热研究实验台的基础上,使用干燥氮气为破空介质、液氮为低温介质,进行了多次高真空多层绝热低温容器的完全真空丧失实验。重点研究了低温容器液位及绝热材料层数的变化对其绝热夹层完全真空丧失后传热的影响。The heat transfer in the insulation jacket will increase immediately after a sudden, catastrophic loss of insulating vacuum （SCLIV） is happened on a HVMLI cryogenic tank. The influence of SCLIV on storage performance in a HVMLI eryogenic tank was experimentally studied in this paper. A test rig was built up and experiments were conducted using LN2 as the test medium. The cryogenic tank was tested in the conditions of various combinations with different initial filling rate and number of insulation layers.

关 键 词：高真空多层绝热低温容器 突然 完全的真空丧失 绝热材料层数 初始充满率 

分 类 号：TK124[动力工程及工程热物理—工程热物理]