燃气管廊泄露爆炸风险分析  

Risk Analysis of Natural Gas Leakage Explosion for Urban Utility Tunnels Pipeline

作　　者：高京卫 任海波 杨亚欣 柳丽颖 张玉姗 吴峰[2] Gao Jingwei;Ren Haibo;Yang Yaxin;Liu Liying;Zhang Yushan;Wu Feng(Shaanxi Natural Gas Co.,Ltd.,Shaanxi,710000;School of Chemical Engineering,Northwest University,Shaanxi,710069)

机构地区：[1]陕西省天然气股份有限公司,陕西710000 [2]西北大学化工学院,陕西710069

出　　处：《当代化工研究》2025年第5期191-193,共3页Modern Chemical Research

基　　金：陕西省秦创原“科学家工程师”队伍建设项目“天然气绿色安全储运与低碳高效利用综合体系构建”(项目编号:2022KXJ-041)。

摘　　要：天然气具有易燃易爆性,在燃气管廊内泄漏易引起火灾、爆炸事故。通过数值模拟城市地下天然气管道爆炸,分析爆炸过程中舱室内温度、压力和火焰传播速度的变化情况,讨论释压板缓解爆炸危害的作用。结果表明,燃气管廊中天然气遇到明火发生爆炸,火焰传播速度极快,短时间内造成高温超压环境,危害极大,释压板可以一定程度上缓解冲击波造成的压力,爆炸过程的研究为天然气管道入廊建设提供理论参考意义。Natural gas is flammable and explosive,and leaks within gas pipe corridors can easily cause fires and explosions.By numerically simulating explosions in urban underground natural gas pipelines,the changes in temperature,pressure,and flame propagation speed within the chamber during the explosion process is analyzed,and the role of pressure relief panels in mitigating explosion hazards is discussed.The results indicate that when natural gas in the gas pipeline corridor encounters an open flame,an explosion occurs with a very rapid flame propagation speed,creating a high-temperature and overpressure environment within a short period,which poses significant hazards.Pressure relief panels can alleviate the pressure caused by shock waves to a certain extent.The research on the explosion process provides theoretical reference significance for the construction of natural gas pipelines into corridors.

关 键 词：城市地下管廊 天然气管道 爆炸 数值模拟 

分 类 号：TE88[石油与天然气工程—油气储运工程]