扁平绕带式低温高压容器绝热性能分析和计算  

Adiabatic Performance Analysis of Cryogenic High Pressure Vessel wound by Flat Metal Strip

作　　者：刘宝庆[1] 蒋家羚[1] 骆晓玲[1] 

机构地区：[1]浙江大学化工机械研究所,杭州310027

出　　处：《低温与超导》2002年第4期9-13,共5页Cryogenics and Superconductivity

摘　　要：扁平绕带式低温高压容器是一种新型低温液体贮存设备 ,由内外两层容器组成 ,内筒体的外壁焊有液氮预冷夹套。平均蒸发率是衡量扁平绕带式低温高压容器绝热性能的重要指标。文中在分析其传热过程和壁厚温差影响因素的基础上 ,提出了一种计算其蒸发率的工程方法 ,并结合1 0 m3液氢储罐设计实例进行了计算。结果表明扁平绕带式低温高压容器具有良好的绝热性能 。Cryogenic high-pressure vessel wound by flat metal strip with a liquid nitrogen precooling jacket is a new fashion adiabatic equipment, which consists of inter vessel and outer vessel. The average evaporating ratio is an the important parameter to scale its adiabatic performance. Based on the analysis of its heat transfer process and the effecting factors of temperature difference, this paper provided an engineering method to calculate the evaporating ratio, and had a calculation combined with the example of 10m 3 liquid hydrogen storage. The result showed that the cryogenic vessel wound by flat metal strip has the preferable adiabatic performance and is suitable for cryogenic storage of important medium.

关 键 词：低温高压容器 绝热性能 扁平绕带容器 传热 蒸发率 

分 类 号：TH49[机械工程—机械制造及自动化] TK124[动力工程及工程热物理—工程热物理]