低温绝热压力容器蒸发率测试方法分析  

Analysis of static evaporation rate measurement methods for cryo- insulation pressure vessels

作　　者：陈联[1] 孙冬花[1] 丁栋[1] 葛瑞宏[1] 朱建炳[1] 

机构地区：[1]兰州空间技术物理研究所真空技术与物理重点实验室,兰州730000

出　　处：《低温与超导》2016年第4期14-17,21,共5页Cryogenics and Superconductivity

摘　　要：蒸发率是评价低温绝热压力容器绝热性能的一项重要指标。文中在总结多年来开展低温绝热压力容器蒸发率测试经验和数据的基础上,从内容器温度平衡时间、环境温度变化、环境大气压力变化、流量计测量管径大小、测试场地振动等角度,分析了外界因素对蒸发率测试结果的影响规律,为正确开展蒸发率测量提供了操作方法,为后续标准的修订提供了数据支撑,可以方便测试者精确掌握被测产品绝热性能指标。The evaporation rate is an important index to estimate thermal insulation performance of eryo - insulation pressure vessels. In the summary of many years to carry out testing experience and result data of evaporation rate, this paper analysed effect reasons from many ways including temperature equilibration time of inner vessel, change of environment temperature and at- mospheric pressure, tube diameter of flow meter, environment vibration of testing ground. The above analysis result can provide a right way to carry out evaporation rate testing and data support of the future standard revising, and is convenient to commend thermal insulation performance of tested product.

关 键 词：真空绝热 压力容器 蒸发率 性能测试 

分 类 号：TH49[机械工程—机械制造及自动化]