【作者】 欧海洋； 焦鹏； 李新爽； 杨杰； 徐龙旺； 陈志平；

【Author】 OU Haiyang;JIAO Peng;LI Xinshuang;YANG Jie;XU Longwang;CHEN Zhiping;Institute of Chemical Machinery,College of Energy Engineering,Zhejiang University;

【机构】 浙江大学能源工程学院化工机械研究所；

【摘要】 固定式储氢容器是加氢站以及氢气固定站点储存氢气的必要设备,与氢能产业发展息息相关。在储氢压力不断提高的背景下,传统Ⅰ/Ⅱ型铬钼钢内胆的储氢容器面临氢脆效应显著、壁厚过大导致的制造和热处理工艺困难等问题,而随着碳纤维材料成本下降和纤维缠绕工艺的成熟,Ⅲ型储氢容器的商业化应用前景日益广阔。本研究针对固定式储氢容器强度失效和疲劳失效这两种主要的失效模式,针对内胆结构设计,采用数值仿真方法系统分析了不同椭球比的椭圆形封头对容器力学性能的影响。通过对比研究封头形状与容器强度、疲劳特性的关联规律,为储氢容器的优化设计提供了理论依据和技术参考。更多还原

【Abstract】 Stationary hydrogen storage vessels are critical for hydrogen refueling stations and stationary hydrogen storage facilities,playing a crucial role in hydrogen energy development.With the continuous increase in hydrogen storage pressure,traditional Type Ⅰ/Ⅱ chromium-molybdenum steel liner hydrogen storage vessels face challenges such as significant hydrogen embrittlement effects,as well as manufacturing and heat treatment difficulties caused by excessive wall thickness.As carbon fiber material costs decrease and winding filament technology matures,the commercial potential of Type Ⅲ hydrogen storage vessels continues to expand.This study focuses on the two primary failure modes of stationary hydrogen storage vessels:strength failure and fatigue failure.Taking the liner structure as the key design element,numerical simulation methods were employed to systematically analyze the influence of different ellipsoidal ratios in Ellipsoidal heads on the performance properties of the vessel.By investigating the relationship between dome shape and the vessel’s strength and fatigue characteristics,this research provides a theoretical foundation and technical reference for optimizing hydrogen storage vessel design.更多还原