综合管廊内掺氢天然气管道泄漏扩散数值模拟研究  

Numerical Simulation Study on Leakage and Diffusion of Hydrogen-Doped Natural Gas Pipelines in the Comprehensive Pipe Gallery

作　　者：江业强 马贵阳[1] 姜向春 梁倬 于鹭菲 JIANG Yeqiang;MA Guiyang;JIANG Xiangchun;LIANG Zhuo;YU Lufei(College of Petroleum Engineering,Liaoning Petrochemical University,Fushun Liaoning 113001,China)

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《辽宁石油化工大学学报》2025年第1期59-64,共6页Journal of Liaoning Petrochemical University

基　　金：辽宁省自然资源厅项目(1638920994698)。

摘　　要：针对不同因素对管廊内掺氢天然气管道泄漏扩散的影响,通过数值模拟软件建立管廊内掺氢天然气管道泄漏扩散模型,研究了掺氢比、管道压力、泄漏口直径、通风模式等因素对气体扩散过程的影响。结果表明,掺氢比影响掺氢天然气的传质能力,且掺氢比越高,掺氢天然气的扩散速度越快;管道压力和泄漏口直径主要通过影响泄漏气体初始动能和泄漏量来影响泄漏气体扩散范围,随着管道压力和泄漏口直径的增大,泄漏气体扩散范围增大;通风模式对管廊内泄漏气体的分布起主导作用,通风频率与泄漏气体射流高度呈反比。In view of the influence of different factors on the leakage and diffusion of hydrogen-doped natural gas pipelines in the pipe gallery,the leakage and diffusion model of hydrogen-doped natural gas pipelines in the pipe gallery was established by numerical simulation software,and the influence of factors such as hydrogen doping ratio,pipeline pressure,leakage hole size and the model of ventilation on the gas diffusion process was studied.The results show that the hydrogen blending ratio can affect the mass transfer ability of hydrogen-doped natural gas,and the higher the hydrogen blending ratio,the faster the diffusion rate of hydrogen-doped natural gas.The pipeline pressure and leakage hole size mainly affect the leakage gas diffusion by affecting the initial kinetic energy and leakage volume of the leakage gas,and the leakage gas diffusion range becomes larger with the increase of pipeline pressure and leakage hole size.The ventilation mode plays a dominant role in the distribution of leaked gas in the pipe gallery,and the ventilation frequency is inversely proportional to the height of the leaked gas jet.

关 键 词：综合管廊 掺氢天然气 掺氢比 通风模式 管道泄漏 

分 类 号：TE832[石油与天然气工程—油气储运工程]