液氢加氢站用液氢泵静态漏热研究  

Static Heat Leakage of Reciprocating Liquid Hydrogen Pump for Liquid Hydrogen Refueling Station

作　　者：许晟 朱登凯 王晨光 吴波 汪国洪 薛明喆 张存满 朱绍伟 XU Sheng;ZHU Dengkai;WANG Chenguang;WU Bo;WANG Guohong;XUE Mingzhe;ZHANG Cunman;ZHU Shaowei(School of Mechanical Engineering,Tongji University,Shanghai 201804,China;Huzhou Sanjing Cryogenic Co.,Ltd.,Huzhou 313002,Zhejiang,China;Clean Energy Automotive Engineering Center,School of Automotive Studies,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学机械与能源工程学院制冷与低温工程研究所,上海201804 [2]湖州三井低温设备有限公司,浙江湖州313002 [3]同济大学汽车学院新能源汽车工程中心,上海201804

出　　处：《真空与低温》2024年第4期424-428,共5页Vacuum and Cryogenics

基　　金：国家重点研发计划(2020YFB1506204)。

摘　　要：往复式液氢泵是液氢加氢站的重要部件,是实现绿色交通的重要一环。液氢泵内充注着低温液氢,而外壳暴露在环境中,其换热损失不可忽略。以一款国产液氢加氢站用液氢泵为研究对象,通过理论分析的方法分析了液氢泵静态时由于辐射换热和导热导致的漏热量为34.96 W,约为0.3 kg/h的液氢蒸发量。建立了三维液氢泵导热模型,验证了导热计算的准确性。提出在结构允许的条件下,增大活塞和气缸的长度、改变泵池支撑的结构能有效降低液氢泵静态漏热。Reciprocating liquid hydrogen pump is an important part of liquid hydrogen refueling station and an important part of green transportation.The liquid hydrogen pump is filled with low temperature liquid hydrogen,while the shell is exposed to the environment.The heat transfer loss of liquid hydrogen pump cannot be ignored.Taking a liquid hydrogen pump as the research object,this paper analyzed the heat transfer loss caused by radiation heat transfer and thermal conductivity of the liquid hydrogen pump through theoretical analysis,and established a three-dimensional thermal conductivity model of the liquid hydrogen pump to verify the accuracy of thermal conductivity calculation.The heat leakage is 34.96 W,which is about 0.3 kg/h of liquid hydrogen evaporation.The calculation results show that increasing the length of piston and cylinder and changing the structure of the chamber support can effectively reduce the static heat loss of liquid hydrogen pump.

关 键 词：液氢泵 加氢站 静态漏热 

分 类 号：TB657.8[一般工业技术—制冷工程]