国内外氢气管道输送技术标准对比与探讨

Comparative analysis and discussion on domestic and foreign technical standards for hydrogen pipeline transportation

氢气管道输送技术标准化工作是保障氢能产业高质量发展及氢气安全输送的重要环节,而中国现行氢气管输技术相关标准较少,尚未形成完善的氢气长输管道标准体系。为此,对比分析国内外氢气管道建设现状以及现行氢气管道输送技术标准,从管材及连接工艺、管内安全流速、管道壁厚设计等方面探讨了国内外氢能管输技术标准的异同点,结果表明:氢气管道材质推荐使用低强度管材,氢气管道壁厚设计时可增加材料性能系数;国内外标准对于氢气管道修复相关要求内容均较少,在不增加安全风险的前提下,可参照天然气管道修复相关标准的要求。研究成果有助于广泛汲取和借鉴国外相对成熟的标准体系经验,可为中国氢气管输技术的应用和标准制定提供参考。

The standardization of hydrogen pipeline transportation technology is an important link to ensure the high-quality development of the hydrogen energy industry and the safe transportation of hydrogen.However,few standards are available for the current hydrogen pipeline transportation technology in China,and no perfect standard system has been formed for long-distance hydrogen pipelines.Hence,a comparative analysis was performed for the current situation of hydrogen pipeline construction at home and abroad,as well as the current technical standards for hydrogen pipeline transportation.Meanwhile,the similarities and differences between domestic and foreign technical standards for hydrogen pipeline transportation were discussed from the aspects of the pipe and connection process,the safe flow rate in the pipeline,and the pipe wall thickness design.The results indicate that:the low-strength material is recommended for the hydrogen pipeline,and the performance coefficient of the material can be introduced in the wall thickness design of hydrogen pipelines.The domestic and foreign standards have few contents on the requirements for the repair of hydrogen pipelines.Thus,the repair requirements for natural gas pipelines can be referred to,provided that the safety risk will not be increased.Generally,the research results are conducive to widely drawing the relatively mature foreign experience of standard systems,capable of providing reference to the application and standard setting of hydrogen pipeline transportation technology in China.