70MPa车载Ⅳ型储氢气瓶瓶口密封技术研究  

Sealing Technology Research of 70 MPa On-board Type IV Hydrogen Storage Cylinder Mouth

作　　者：苏红艳 何春辉 金碧辉 成志钢 Su Hongyan;He Chunhui;Jin Bihui;Cheng Zhigang(Jiangsu Guofu Hydrogen Energy Equipment Co.,Ltd.,Zhangjiagang,215600;Zhangjiagang Hydrogen Energy Research Institute Co.,Ltd.,Zhangjiagang,215600)

机构地区：[1]江苏国富氢能技术装备股份有限公司,张家港215600 [2]张家港氢云新能源研究院有限公司,张家港215600

出　　处：《中国特种设备安全》2023年第3期9-15,共7页China Special Equipment Safety

基　　金：国家重点研发计划(2019YFB1504800)。

摘　　要：高压氢气密封技术是保障车载Ⅳ型瓶安全可靠储氢的关键技术。本文针对车载Ⅳ型瓶瓶口密封难题,结合国内外最新的IV型储氢瓶密封技术发展现状,设计了一种Ⅳ型储氢瓶瓶口组合密封结构,并利用ANSYS有限元软件分析验证了该密封结构的可行性,并基于该模型研究了预压缩率、配合间隙公差及密封介质压力等对密封结构密封性能的影响规律。High-pressure hydrogen sealing technology is the key technology to ensure safety and reliability of on-board type IV hydrogen storage cylinder.According to type IV cylinder mouth sealing problems,after studying the latest domestic and foreign sealing technology development of type IV hydrogen storage cylinder,a combined sealing structure of type IV hydrogen storage cylinder mouth is designed,and the feasibility of the sealing structure is verified by ANSYS numerical simulation.Based on the sealing model,the influences of pre-compression rate,fit gap tolerance and hydrogen gas pressure on the sealing performance of the sealing structure are verified in this paper.

关 键 词：IV型储氢瓶 组合密封结构 密封性能 数值模拟 

分 类 号：X933.4[环境科学与工程—安全科学]