70 MPa高压氢气瓶阀密封技术研究  

Research on Sealing Technology of 70 MPa High Pressure Hydrogen Cylinder Valve

作　　者：周路云[1] 李前[1] 张伟鹏 ZHOU Lu-yun;LI Qian;ZHANG Wei-peng(Shanghai Institute of Special Equipment Inspection and Technical Research,Shanghai 200062,China;Shanghai Baitu Cryogenic Valve Co.,Ltd.,Shanghai 200949,China)

机构地区：[1]上海市特种设备监督检验技术研究院,上海200062 [2]上海百图低温阀门有限公司,上海200949

出　　处：《阀门》2024年第2期191-194,共4页VALVE MAGAZINE

摘　　要：全球正面对能源和环境的挑战,氢能源汽车已成为全球汽车行业的发展方向,车载储氢系统主要是由储氢气瓶、组合式瓶阀、溢流阀、减压阀、压力/温度传感器等组成,其中需要频繁开启的部件是组合式瓶阀,压力一般在35 MPa~70 MPa,最容易产生泄漏。目前车载氢能的储存压力一般为35 MPa, 70 MPa的也在进行技术攻关,不同于普通的工业用气瓶阀,70 MPa高压氢气瓶阀设计压力高,密封性能的可靠性直接影响了产品的使用安全。针对70 MPa高压氢气瓶阀密封材料进行研究,采用GB/T 528-2009标准对不同硬度和直径的O形密封圈进行性能试验,比较不同材料的密封性能,确保70 MPa高压氢气瓶阀密封性能安全可靠。Facing the challenges of energy and environment globally,hydrogen energy vehicles have become the development direction of the global automotive industry.In vehicle hydrogen storage systems are mainly composed of hydrogen storage cylinders,combined cylinder valves,overflow valves,pressure reducing valves,pressure/temperature sensors,etc.The components that need to be frequently opened are combined integrated cylinder valves,with pressures generally ranging from 35 MPa to 70 MPa,which are most prone to leakage.At present,the storage pressure of onboard hydrogen energy is generally 35 MPa,and technology research is also underway for 70 MPa.Unlike ordinary industrial gas cylinder valves,the design pressure of 70 MPa high-pressure hydrogen cylinder valves is high,and the reliability of sealing performance directly affects the safety of product use.This article focuses on the research of sealing materials for 70 MPa high-pressure hydrogen cylinder valves,and using the GB/T 528-2009 standard,performance tests were conducted on O-ring seals with different hardness and diameter to compare the sealing performance of different materials and ensure the safe and reliable sealing performance of 70 MPa high-pressure hydrogen cylinder valves.

关 键 词：氢能 高压氢气 组合式瓶阀 密封圈 

分 类 号：TH134[机械工程—机械制造及自动化]