纯氢与掺氢天然气管道减压波仿真研究
Simulation study on decompression waves in pure hydrogen and hydrogen-blended natural gas pipelines
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- 引用格式:
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田晓龙,张新岩,孟欣冉,杨浩,何佳薪,张双蕾,范嘉涛,吕浩,朱建鲁.纯氢与掺氢天然气管道减压波仿真研究[J].天然气与石油,2026,44(1):133-139.doi:10.3969/j.issn.1006-5539.2026.01.017
Tian Xiaolong, Zhang Xinyan, Meng Xinran, Yang Hao, He Jiaxin, Zhang Shuanglei, Fan Jiatao, Lyu Hao, Zhu Jianlu.Simulation study on decompression waves in pure hydrogen and hydrogen-blended natural gas pipelines[J].Natural Gas and Oil,2026,44(1):133-139.doi:10.3969/j.issn.1006-5539.2026.01.017
- DOI:
- 10.3969/j.issn.1006-5539.2026.01.017
- 作者:
- 田晓龙1 张新岩1 孟欣冉1 杨浩2 何佳薪2 张双蕾2 范嘉涛3 吕浩3 朱建鲁3
Tian Xiaolong1, Zhang Xinyan1, Meng Xinran1, Yang Hao2, He Jiaxin2, Zhang Shuanglei2, Fan Jiatao3, Lyu Hao3, Zhu Jianlu3
- 作者单位:
- 1. 中国石油天然气销售公司甘肃分公司, 甘肃 兰州 730070; 2. 中国石油工程建设有限公司西南分公司, 四川 成都 610041; 3. 中国石油大学(华东)储运与建筑学院, 山东 青岛 266580
1. Gansu Branch of China National Petroleum Corporation Gas Sales Company, Lanzhou, Gansu, 730070, China; 2. CPECC Southwest Company, Chengdu, Sichuan, 610041, China; 3. College of Pipeline and Civil Engineering, China University of Petroleum(East China), Qingdao, Shandong, 266580, China
- 关键词:
- 减压波;掺氢天然气;GERG—2008状态方程;裂纹扩展;管道安全
Decompression wave; Hydrogen-blended natural gas; GERG—2008 state equation; Crack propagation; Pipeline safety
- 摘要:
作为氢能输送的关键技术,掺氢天然气管道中减压波特性的研究直接关系到管道的安全运行。针对纯氢与掺氢天然气管道中的减压波行为进行了仿真研究,旨在探究不同因素对减压波特性的影响。通过对比多种状态方程,发现天然气发热量计算方法—2008(Gas Research Institute Equation for Gas—2008,GERG—2008)状态方程在高压条件下对掺氢天然气密度的计算更为精确。基于等熵假设,建立了减压波传播速度的一维模型,并通过实验数据验证了模型的可靠性。研究结果表明,随着掺氢比的增加,减压波速度显著提升,从而降低了管道裂纹扩展的风险;初始压力的降低和初始温度的升高均有助于减缓减压波速度,抑制管道韧性开裂。研究结果为掺氢天然气管道的安全设计和运行提供了理论依据。
As a key technology for hydrogen transportation, the study of decompression wave characteristics in hydrogen-blended natural gas pipelines is directly related to pipeline safety. This paper conducts simulations on decompression wave behavior in pure hydrogen and hydrogen-blended natural gas pipelines to investigate the effects of different factors on decompression wave characteristics. By comparing multiple equations of state, the GERG—2008 equation of state is found to provide more accurate density calculations for hydrogen-blended natural gas under high-pressure conditions. Based on the isentropic assumption, a one-dimensional model for decompression wave propagation velocity is established and validated against experimental data. Results show that as the hydrogen blending ratio increases, the decompression wave velocity significantly increases, thereby reducing the risk of pipeline crack propagation. Conversely, a decrease in initial pressure and an increase in initial temperature both help to reduce the decompression wave velocity and inhibit ductile fracture in pipelines. These findings provide a theoretical basis for the safe design and operation of hydrogen-blended natural gas pipelines.
