临氢环境下聚乙烯管材力学性能研究进展  

Research Progress on Mechanical Properties of Polyethylene Pipes in Hydrogen Containing Environment

作　　者：杨鹏 李敬法 郑度奎 宇波 赵杰[1] 李建立[1] 段鹏飞 李璐伶 YANG Peng;LI Jingfa;ZHENG Dukui;YU Bo;ZHAO Jie;LI Jianli;DUAN Pengfei;LI Luling(School of Mechanical Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,China;School of Petroleum Engineering,Yangtze University,Wuhan 430100,China;Shenzhen Gas Corporation Ltd.,Shenzhen 518049,China)

机构地区：[1]北京石油化工学院机械工程学院,北京102617 [2]长江大学石油工程学院,武汉430100 [3]深圳市燃气集团股份有限公司,深圳518049

出　　处：《中国腐蚀与防护学报》2025年第2期319-326,共8页Journal of Chinese Society For Corrosion and Protection

基　　金：国家重点研发计划(2021YFB4001605);国家市场监督管理总局科技技术项目(2023MK123);福建省“揭榜挂帅”引导性项目(2023H0054)。

摘　　要：氢能作为一种清洁能源备受关注,是目前能源领域的研究热点。通过现役城镇燃气聚乙烯管道将氢气输送至用户终端,是推动氢能大规模利用的一种重要手段。但聚乙烯管材长期暴露在氢环境中,其关键力学性能可能发生不可逆变化,影响输送安全。目前国内关于临氢环境下聚乙烯管材力学性能的研究尚处于起步阶段。本文综述了临氢环境下聚乙烯管材力学性能的相关研究进展,通过对聚乙烯管材在非氢气环境和临氢环境下拉伸、蠕变、断裂和疲劳试验研究的系统梳理,总结了氢气对聚乙烯管材力学性能的影响规律。结果表明,在较低的氢气压力下,聚乙烯管材力学性能受到的影响较小,可以忽略不计;只有在高压氢环境下,聚乙烯管材的力学性能才会发生显著变化,但该影响是来自于氢气的影响还是环境压力的作用目前尚不明确。本研究可为城镇聚乙烯管道输氢技术的发展提供参考和指导。Hydrogen energy,as a clean energy source,has attracted much attention and is now a major focus in the energy field.Transporting hydrogen to user terminals via the existing urban gas polyethylene pipelines is a key approach for promoting the large-scale utilization of hydrogen energy.However,prolonged exposure of polyethylene pipes to hydrogen environments may cause irreversible changes to their mechanical properties,potentially compromising the transportation safety.At present,research on the mechanical properties of polyethylene pipes in hydrogen environments is still in its early stages in China. This article reviews the recent progress in understanding the influence of hydrogen environments on the mechanical properties of polyethylene pipes. By systematically analyzing the results of tensile, creep, fracture, and fatigue tests of polyethylene pipes in environments with or without hydrogen respectively, the impact of hydrogen on the mechanical properties of polyethylene pipes is summarized and discussed.The findings indicate that lower hydrogen pressures presented negligible effect on mechanical properties of polyethylene pipes is, while significant changes occurred in high-pressure hydrogen environments,i.e. the mechanical properties of polyethylene pipes will undergo significant changes. However, it remains unclear whether these changes are driven by hydrogen itself or environmental pressure. This review provides valuable insights for advancing hydrogen transportation technologies using urban polyethylene pipelines.

关 键 词：氢环境 聚乙烯管道 拉伸 蠕变 断裂 疲劳 

分 类 号：TQ317.3[化学工程—高聚物工业]