真空绝热管路接头的密封和绝热特性  

Seal and Insulation Characteristics of Vacuum Insulated Line Joints

作　　者：符锡理[1] 

机构地区：[1]中国航天工业总公司15所

出　　处：《低温工程》1995年第4期1-4,共4页Cryogenics

摘　　要：介绍了真空绝热管路接头的典型结构，分析了它们的密封和绝热机理与特性；指出在气密性检查时在平面法兰冷密封处发生少量漏气是允许的。This paper presents some typical constructions of vacuum insulated line joint,analvses the seal and insulation mechanism as well as the characteristics of this joints.It is pointout that during gas tightness test , there is a certain gas leakage from the cold seal of the plateflange type joint is allowable.

关 键 词：低温设备 管道 接头配件 密封 隔热 

分 类 号：TB75[一般工业技术—真空技术]