|本期目录/Table of Contents|

[1]蒋永清,任喆,孙超,等.埋地管道泄漏天然气在分层填筑土壤扩散数值模拟研究[J].中国安全生产科学技术,2016,12(6):105-109.[doi:10.11731/j.issn.1673-193x.2016.06.019]
　JIANG Yongqing,REN Zhe,SUN Chao,et al.Numerical simulation research on diffusion of natural gasleaking from buried pipeline in layered filling soil[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(6):105-109.[doi:10.11731/j.issn.1673-193x.2016.06.019]
点击复制

埋地管道泄漏天然气在分层填筑土壤扩散数值模拟研究
分享到：

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年6期
页码:
105-109
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-06-30

文章信息/Info

Title:
Numerical simulation research on diffusion of natural gas leaking from buried pipeline in layered filling soil
作者:
蒋永清; 任喆; 孙超; 王博; 周婷; 孙大伟
（哈尔滨理工大学 测控技术与通信工程学院，黑龙江 哈尔滨 150080）
Author(s):
JIANG Yongqing;  REN Zhe;  SUN Chao;  WANG Bo;  ZHOU Ting;  SUN Dawei
(School of Measurement-Control Technology and Communications Engineering, Haerbin University of Science and Technology, Haerbin Heilongjiang 150080, China)
关键词:
埋地管道; 天然气扩散; 分层填筑; 数值模拟
Keywords:
buried pipeline;  natural gas diffusion;  layered filling;  numerical simulation
分类号:
X967
DOI:
10.11731/j.issn.1673-193x.2016.06.019
文献标志码:
A
摘要:
城市埋地天然气管道发生泄漏不易被发现，并易产生爆炸、火灾、中毒等次生事故，针对低压埋地天然气管道施工分层填筑与不分层填筑的两种情况建立模型，依据多孔介质模型修正后的基本控制方程，采用FLUENT组分运输模型、RNG k-ε湍流模型，对管道沟渠分层填筑与不分层填筑气体泄漏扩散情况进行数值模拟。根据仿真土壤含气摩尔量划分三个浓度区域进行分析，分层填筑土壤分界处砂土含气量达到低浓度的时间较快约为60 s，12 min可以达到高浓度区域。两种材质交界面处，高浓度气体扩散存在延迟，中浓度和低浓度气体扩散在交界面处扩散曲线有明显拐点，进入到上层土壤材料后扩散速率加快，不分层填筑模型扩散速率没有明显改变。
Abstract:
The leakage of urban buried natural gas pipeline is hard to discover, and some secondary accidents such as explosion, fire and poisoning are easy to occur. A model was established aiming at two situations including layered filling and unlayered filling in construction of low pressure buried natural gas pipeline. The basic control equations were revised according to the porous media model, and the numerical simulation on gas leakage and diffusion under the conditions of layered filling and unlayered filling in pipeline trench was conducted by applying FLUENT component transport model and RNG k-ε turbulence model, then three concentration regions were divided according to the molar quantity of gas in the simulated soil. The results showed that the time for the gas quantity in the sandy soil on the soil interface with layered filling to reach low concentration was quicker, which was about 60 s, and the time to reach high concentration was 12 min. on the interface of two materials, the diffusion of high concentration gas had a delay time, and the diffusion curves of medium and low concentration gas on the interface had obvious inflection point. The diffusion rate accelerated after entering the upper soil, while the diffusion rate in the unlayered filling model had no obvious change.

参考文献/References:

［1］王保群，林燕红，焦中良．我国天然气管道现状与发展方向［J］. 国际石油经济，2013（8）：76-79． WANG Baoxian，LIN Yanhong，JIAO Zhongliang．Natural gas pipeline in our country present situation and the development direction［J］．International Petroleum Economics，2013（8）：76-79.
［2］潘新新，周伟国．城市天然气高压输配管网风险评价［J］．天然气工业，2007（8）：100-102，142. PAN Xinxin，ZHOU Weiguao，The urban natural gas high-pressure pipeline network risk assessment［J］. Natural Gas Industry，2007（08）：100-102，142．
［3］国家安全生产监督管理总局．国家安全生产监督管理总局政府网站事故查询系统［OL］．国家安全生产监督管理总局，（2016-02-28）．http://media.chinasafety.gov.cn:8090/iSystem/shigumain.jsp
［4］郭峰． 城市地下燃气管道风险评价研究［D］．长沙：中南大学，2011．
［5］徐亚博，钱新明，刘振翼．天然气输送管道泄漏事故危害定量分析［J］．中国安全科学学报，2008(1)：146-149,179． XU Yabo，QIAN Xinming，LIU Zhenyi．Natural gas pipeline leakage accident harm to quantitative analysis［J］．China Safety Science Journal，2008(1)：146-149,179．
［6］Holmes N S．A review of dispersion modeling and its application to the dispersion of particles:An overview of different dispersion models available ［J］． Atmospheric Environment，2006，40(30)：5902-5928．
［7］刘晅亚，许晓元，纪超．.城市中高压燃气管道泄漏火灾事故风险分析［J］. 城市燃气，2013(1)：10-18． LIU Huanya，XUXiaoyuan，JI Chao．City in the high pressure gas pipeline leakage fire accident risk analysis［J］，Urban Gas，2013(1)：10-18．
［8］谢昱姝，吴宗之，吕良海,等． 城市管道天然气在土壤中泄漏扩散实验研究［J］．中国安全生产科学技术，2012,8(4)：13-17． XIE Yishu，WU Zhongzhi，LYU Lianghai, et al． Urban natural gas pipeline leakage diffusion experiment in soil［J］．China Safety Science Journal，2012,8(4)：13-17．
［9］黄雪驰，马贵阳，王锡钰,等．基于稳定风场的埋地天然气管道泄漏数值模拟［J］．中国安全生产科学技术，2016，12(1)：96-101． HUANG Xuechi，MA Guiyang，WANG Xiyu． Based on the stable wind field of buried gas pipeline leak numerical simulation［J］． China Safety Science Journal，2016，12(1)：96-101．
［10］金仁喜，淮秀兰．多孔介质高强度传热传质的理论研究［J］． 工程热物理学报，2005(S1)：152-154． JIN Renxi，HUAI Xiulan．Porous media theory research of high strength and heat mass transfer［J］．Journal of Engineering Thermophysics，2005(S1)：152-154．
［11］赵蔚琳，吴波．分解炉内湍流流场的数学模型建立［J］． 山东建材学院学报，2001(1)：26-29． ZHAO Weilin，WU Bo． The establishment of mathematical models on turbulence flow of decomposing furnace［J］． Journal of Shandong Jianzhu University，2001(1)：26-29．
［12］中华人民共和国建设部.GB X0028-2006城市燃气设计规范［S］.北京:中国建筑工业出版社，2006.

相似文献/References:

[1]姚志强.埋地原油管道油品泄漏扩散三维数值模拟[J].中国安全生产科学技术,2015,11(6):132.[doi:10.11731/j.issn.1673-193x.2015.06.021]
　YAO Zhi-qiang.Three-dimensional numerical simulation on leakage and diffusion of oil in buried crude oil pipeline[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):132.[doi:10.11731/j.issn.1673-193x.2015.06.021]
[2]韩传军,张瀚,张杰,等.地表载荷对硬岩区埋地管道应力应变影响分析[J].中国安全生产科学技术,2015,11(7):23.[doi:10.11731/j.issn.1673-193x.2015.07.004]
　HAN Chuan-jun,ZHANG Han,ZHANG Jie,et al.Analysis on influence of surface load to stress-strain characteristics of pipeline buried in hard rock region[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):23.[doi:10.11731/j.issn.1673-193x.2015.07.004]
[3]张一楠,马贵阳,周玮,等.沉降土体对管道跨越结构应力影响的分析[J].中国安全生产科学技术,2015,11(8):106.[doi:10.11731/j.issn.1673-193x.2015.08.018]
　ZHANG Yi-nan,MA Gui-yang,ZHOU Wei,et al.Analysis on influence to stress of pipeline with crossover structure by soil mass settlement[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):106.[doi:10.11731/j.issn.1673-193x.2015.08.018]
[4]康习锋,张宏,罗茜,等.初始几何缺陷对埋地管道屈曲临界载荷影响研究[J].中国安全生产科学技术,2015,11(10):23.[doi:10.11731/j.issn.1673-193x.2015.10.004]
　KANG Xi-feng,ZHANG Hong,LUO Xi,et al.Influence of initial geometric imperfection on critical load of buckling in buried pipeline[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):23.[doi:10.11731/j.issn.1673-193x.2015.10.004]
[5]韩传军,张瀚,张杰,等.地表夯击载荷作用下埋地管道力学分析[J].中国安全生产科学技术,2015,11(10):61.[doi:10.11731/j.issn.1673-193x.2015.10.011]
　HAN Chuan-jun,ZHANG Han,ZHANG Jie,et al.Mechanical analysis on buried pipeline under effect of surface tamping impact load[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):61.[doi:10.11731/j.issn.1673-193x.2015.10.011]
[6]黄雪驰,马贵阳,王锡钰,等.基于稳定风场的埋地天然气管道泄漏数值模拟[J].中国安全生产科学技术,2016,12(1):96.[doi:10.11731/j.issn.1673-193x.2016.01.018]
　HUANG Xuechi,MA Guiyang,WANG Xiyu,et al.Numerical simulation on leakage of buried gas pipeline based on stable wind field[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(6):96.[doi:10.11731/j.issn.1673-193x.2016.01.018]
[7]李长俊,马树锋,季楚凌,等.地面堆载对埋地管道的安全影响分析[J].中国安全生产科学技术,2015,11(11):23.[doi:10.11731/j.issn.1673-193x.2015.11.004]
　LI Chang-jun,MA Shu-feng,JI Chu-ling,et al.Study on influence to safety of buried pipelines caused by ground loads[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):23.[doi:10.11731/j.issn.1673-193x.2015.11.004]
[8]张铄,吴明,牛冉,等.深层圆弧形滑坡作用下长输埋地输气管道响应分析[J].中国安全生产科学技术,2015,11(11):29.[doi:10.11731/j.issn.1673-193x.2015.11.005]
　ZHANG Shuo,WU Ming,NIU Ran,et al.Analysis on response of long distance buried gas pipeline impacted by deep cir-cular arc landslide[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(6):29.[doi:10.11731/j.issn.1673-193x.2015.11.005]
[9]刘朝峰,等.城市埋地管道占压风险评估实用方法研究[J].中国安全生产科学技术,2017,13(2):188.[doi:10.11731/j.issn.1673-193x.2017.02.033]
　LIU Chaofeng,JIANG Liben,et al.Research on practical method for occupying risk assessment of urban buried pipelines[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(6):188.[doi:10.11731/j.issn.1673-193x.2017.02.033]
[10]骆正山,李娇.基于子集模拟的埋地管道失效概率评估[J].中国安全生产科学技术,2017,13(3):90.[doi:10.11731/j.issn.1673-193x.2017.03.014]
　LUO Zhengshan,LI Jiao.Failure probability assessment of buried pipeline based on subset simulation[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(6):90.[doi:10.11731/j.issn.1673-193x.2017.03.014]

备注/Memo

备注/Memo:
安监总局2013年安全生产重大事故防治关键技术项目(2013002)
更新日期/Last Update: 2016-06-30