含氢天然气管道工程设计中有关间距问题探讨
Discussion on separation distances in the engineering design of hydrogen-blended natural gas pipelines
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- 引用格式:
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陈俊文,汤晓勇,谌贵宇,李玉星,何山,ChoHingLee,刘翠伟,李天雷,郭艳林.含氢天然气管道工程设计中有关间距问题探讨[J].天然气与石油,2022,40(3):8-14.doi:10.3969/j.issn.1006-5539.2022.03.002
CHEN Junwen, TANG Xiaoyong, SHEN Guiyu, LI Yuxing, HE Shan, Cho Hing LEE, LIU Cuiwei, LI Tianlei,GUO Yanlin.Discussion on separation distances in the engineering design of hydrogen-blended natural gas pipelines[J].Natural Gas and Oil,2022,40(3):8-14.doi:10.3969/j.issn.1006-5539.2022.03.002
- DOI:
- 10.3969/j.issn.1006-5539.2022.03.002
- 作者:
- 陈俊文1 汤晓勇1 谌贵宇1 李玉星2 何山3 Cho Hing Lee4 刘翠伟2 李天雷1 郭艳林1
CHEN Junwen1, TANG Xiaoyong1, SHEN Guiyu1, LI Yuxing2, HE Shan3, Cho Hing LEE4, LIU Cuiwei2, LI Tianlei1,GUO Yanlin1
- 作者单位:
- 1. 中国石油工程建设有限公司西南分公司, 四川 成都 610041; 2. 中国石油大学(华东)储运与建筑工程学院, 山东 青岛 266580; 3. 伊尔姆环境资源管理咨询(上海)有限公司, 上海 200080; 4. 挪威船级社(DNV)可持续发展卓越中心, 上海 200336
1. CPECC Southwest Company, Chengdu, Sichuan, 610041, China; 2. College of Pipeline and Civil Engineering, China University of Petroleum(East China), Qingdao, Shandong, 266580, China; 3. ERM(Shanghai) Limited Company, Shanghai, 200080, China; 4. DNV Centre of Excellence for Sustainable Development, Shanghai, 200336, China
- 关键词:
- 含氢天然气管道;工程设计;间距;探讨
Hydrogen-blended natural gas pipelines; Engineering design; Separation distance; Discussion
- 摘要:
近年来，氢能综合利用已成为世界各国研究的热点,也是世界新能源的重要发展方向之一。大规模运输氢气时,管道运输更加高效、安全。国外已建成氢气管道约6 000 km,一些国家将氢气掺入天然气管道中实现氢气长距离运输和利用,并形成了部分相关的管道标准。中国尚无氢气、混氢天然气长输管道相关标准规范,由于设计理念差异,在站场布置间距问题上无法参考国外标准规范;同时对于不同氢气/天然气浓度的混合体系,国外相关标准规范规定的管道潜在影响半径、防爆区域范围等是否合理尚待考证。基于氢气、混氢天然气的物性特点,结合天然气管道、站场相关间距的本质原则,定量比对了氢气、混氢天然气、天然气的影响范围,探讨了含氢管道工程设计若干间距参照依据。研究表明:含氢天然气站场的防火间距可参照天然气站场相关规定;含氢天然气管道潜在影响半径参考纯氢气管道潜在影响半径的计算方法具有较大风险,可采用提出的基于浓度修正的定量计算方法;含氢天然气管道站场防爆区域应综合执行相关氢气、天然气站场标准要求。研究成果可为含氢天然气管道工程设计提供借鉴。
The comprehensive utilization of hydrogen has been a research hotspot in countries all over the world in recent years, and it is also one of the important development directions of new energy in the world. When hydrogen is transported in bulk on a large scale, pipeline transportation is more efficient and safe. About 6 000 km of hydrogen pipelines have been built abroad and some countries have blended hydrogen into natural gas pipelines to achieve long-distance transportation and utilization of hydrogen, and have developed some relevant pipeline standards. However, there are no relevant standards for hydrogen/hydrogen-blended natural gas long-distance pipelines in China. Due to the differences in design concepts, it is impossible to refer to foreign regulations on the issue of station layout equipment spacing. At the same time, for systems handling gas mixtures with different hydrogen/natural gas concentrations, whether the pipeline's potential impact radius and explosion-proof area scope specified by relevant foreign regulations are reasonable remains to be verified. Based on the physical characteristics of hydrogen and hydrogen-blended natural gas, combined with the essential principles of the separation distance between natural gas pipelines and equipment in station yards, the influence range of hydrogen, hydrogen-blended natural gas and natural gas is quantitatively assessed and compared, and some reference bases for the engineering design of hydrogen-containing pipelines are discussed. Studies have shown that the fire separation distance of hydrogen-containing natural gas stations can refer to the relevant regulations of natural gas stations. The potential impact radius of hydrogen-blended natural gas pipelines could be underestimated by following the equation of pure hydrogen pipelines. To rectify this situation, the modified quantitative calculation method proposed in this paper can be used. The area classification for hydrogen-blended natural gas pipelines and stations should implement relevant requirements for hydrogen and natural gas station. The research results can provide a reference for the engineering design of hydrogen-containing pipeline.
