高压气动减压阀的结构优化与特性分析

Analysis of Structure Optimization and Characteristic of High Pressure Pneumatic Reducing Valves

对氢能源动力汽车的输氢系统来说,要解决的关键问题就是高压氢气的减压,本文针对该系统中的关键性元件高压气动减压阀进行了研究。为保证1次加氢后连续行驶距离达到300km以上,要求氢能源汽车车载输氢系统储氢气瓶的压力达到35MPa以上,氢能源汽车质子交换膜燃料电池所提供的氢气的正常工作压力为0.16MPa。通过对阀的各个主要部件进行分析,优化了该阀的结构,设计了一种新型高压气动减压阀;建立了阀的数学模型,运用MATLAB/SIMULINK仿真软件,分析了该阀的静态特性和动态特性。

To system for the transportation of hydrogen in hydrogen powered cars, the key problems are the high-pressure hydrogen decompression. High pneumatic reducing valves based on hydrogen energy vehicles for the key elements in the high pressure supply hydrogen system were studied. In order to ensure the car after a dydrogenation to run away from the beginning reaches more than 300 kin, hydrogen energy vehicles on-board hydrogen storage system of hydrogen cylinder pressure requirements more than 35 MPa. Hydrogen energy of proton exchange membrance fuel cell car requirements pro- vided by the normal work of the hydrogen pressure is 0.16 MPa. In this paper, through analysis of valve of each main part to optimize the structure of the valve, a new type of high pressure pneumatic pressure reducing valve was designed and the mathematical model of the valve was established, MATLAB/SIMULINK simulation softwares were usedto analyze the stat- ic characteristics and dynamic characteristics of the valves.