PDF下载

[1]宋静,马晓强,郭东升.天然气管道爆裂事故原因及防范措施[J].油气储运,2014,33(4):385-390.[doi:10.6047/j.issn.1000-8241.2014.04.009]
　SONG Jing,MA Xiaoqiang,GUO Dongsheng.Causes and preventive measures against explosion accident of gas pipeline[J].Oil & Gas Storage and Transportation,2014,33(4):385-390.[doi:10.6047/j.issn.1000-8241.2014.04.009]

点击复制

天然气管道爆裂事故原因及防范措施

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 33 期数: 2014年第4期页码: 385-390 栏目: 出版日期: 2014-04-25

Title:: Causes and preventive measures against explosion accident of gas pipeline

作者:: 宋静; 马晓强; 郭东升; 山东省天然气管道有限责任公司, 山东济南250101

Author(s):: SONG Jing; MA Xiaoqiang; GUO Dongsheng; Shandong Natural Gas Pipeline Co.Ltd., Jinan, Shandong, 250101

关键词:: 天然气管道; 爆炸事故; 技术分析; 防范措施; 安全运行

Keywords:: gas pipeline; explosion accident; technical analysis; preventive measure; safety operation

分类号:: TE88

DOI:: 10.6047/j.issn.1000-8241.2014.04.009

摘要:: 通过对某长输天然气管道发生的爆炸事故进行详细的技术分析，确定了其发生爆管泄漏的原因和点火源。对爆裂管道的断口进行了宏观检查和测量，分析了断口宏观形貌；对发生爆裂和未发生爆裂的管道分别取样，进行化学成分分析和金相分析；沿爆裂管段横向取块状拉伸样品进行拉伸性能测试；对爆裂管道和未爆裂管道横截面进行显微硬度测试；在爆裂管道靠近划伤区域和未爆裂管道上分别取小块试样，进行金属内部氢含量测试；在扫描电镜下对断口进行观察。基于上述，确定了管道断裂原因，即管道表面严重划伤，造成管道发生氢致开裂，导致天然气泄漏，并与空气混合，形成爆炸性混合气体，遇供电线路绝缘子放电火花，发生爆炸火灾事故。最后从完整性管理、外防腐层检测、阴极保护等多个方面提出了有效的防范措施。

Abstract:: Through detailed technical analysis on an explosion accident in a long-distance gas pipeline,the cause of its explosion and leakage and the ignition source were found out.Visual inspection and measurement were carried out on the fracture of the explosion pipeline,and macro-morphology of fracture was analyzed.Samples were taken from both the exploded and unexploded pipes to conduct chemical composition analysis and metallographic analysis.Massive samples were taken transversally along the explosion pipeline to conduct tensile property test.Microhardness test was carried out on the cross section of the exploded and unexploded pipes.Samples were taken respectively from the exploded pipeline near the scratch area and the unexploded one to test the hydrogen content in the metal.Fracture was observed under the scanning electron microscope.Based on all the above studies,the cause of pipeline fracture was determined,that is,the serious scratch on the surface of pipeline causes the hydrogen induced cracking of pipeline,which then led to the leakage of natural gas,then natural gas mixing with air formed the explosive gas mixture,which when meeting the discharge spark of insulator in power supply line,exploded.In the end,effective preventive measures are proposed in terms of integrity management, inspection of external anticorrosive coating and cathodic protection.(11 Figures,3 Tables,6 References)

参考文献/References:

[1]杜艳，谢英，王子豪，等.天然气管道事故分析[J].管道技术与设备， 2009 （2）： 16-18.

　DU Y，XIE Y，WANG Z H，et al. Accident analysis of gas pipeline[J]. Pipeline Technique and Equipment， 2009 （2）：16-18.

[2]阮鑫，葛爱菊，王春兰，等. 天然气长输管道焊接裂纹及防范对策[J].化工设备与管理， 2006， 43 （3）： 58-61.

　RUAN X，GE A J，WANG C L，et al. Weld crack existing in long natural gas transportation piping and prevention methods[J]. Process Equipment & Piping， 2006， 43 （3）：58-61.

[3]罗鹏，张一玲，蔡培培，等. 长输天然气管道内腐蚀事故调查分析与对策[J].石油与天然气， 2010， 24 （6）： 19-21.

　LUO P，ZHANG Y L，CAI P P，et al. Analysis and countermeasures of natural gas transmission pipeline internal corrosion accidents[J]. Oil & Gas， 2010， 24 （6）：19-21.

[4]吴万忠. GB/T 9711.1－1997 石油天然气工业输送钢管交货技术条件第1部分： A 级钢管[S].北京：中国标准出版社， 1997.

　WU W Z. GB/T 9711.1－1997. Petroleum and natural gas industries-Steel pipe for pipelines-Technical delivery conditions-Part 1：Pipes of requirement class A[S]. Beijing：Standards Press of China，1997.

[5]黄亮亮，孟惠民，黄晓林，等. X60 管线钢在盐碱性土壤中的腐蚀行为与机理[J].油气储运， 2013， 32 （3）： 258-260.

　HUANG L L，MENG H M，HUANG X L，et al. Corrosion behaviors and mechanism of X60 pipe steel in saline and alkali soil[J]. Oil & Gas Storage and Transportation， 2013， 32 （3）：258-260.

[6]文华. 天然气输气管道爆裂事故分析[J]. 四川有色金属， 2000（1）： 54-56.

　WEN H. Accident analysis for natural gas transfer pipe bursting[J]. Sichuan Nonferrous Metals， 2000 （1）：54-56.

相似文献/References:

[1]刘四运,贾伯早.基于双Duffing振子的天然气管道泄漏检测系统[J].油气储运,2015,34(7):784.[doi:10.6047/j.issn.1000-8241.2015.07.022]
　LIU Siyun,JIA Bozao.Dual-Duffing-oscillator-based leakage detection system for natural gas pipeline[J].Oil & Gas Storage and Transportation,2015,34(4):784.[doi:10.6047/j.issn.1000-8241.2015.07.022]
[2]杨金生,赵宣,贾世民.天然气管道轮式超声波壁厚测量系统的研制[J].油气储运,2015,34(8):859.[doi:10.6047/j.issn.1000-8241.2015.08.012]
　YANG Jinsheng,ZHAO Xuan,JIA Shimin.Wheeled ultrasonic wall thickness measurement system develop for natural gas pipeline[J].Oil & Gas Storage and Transportation,2015,34(4):859.[doi:10.6047/j.issn.1000-8241.2015.08.012]
[3]李志学,魏莎莎.基于复合作业量的天然气管输定价模型试验研究——以西气东输二线为例[J].油气储运,2015,34(9):955.[doi:10.6047/j.issn.1000-8241.2015.09.008]
　LI Zhixue,WEI Shasha.Experiment of pricing model for pipeline transmission of natural gas based on composite throughput-A case study on the 2nd West-to-East Gas Pipeline[J].Oil & Gas Storage and Transportation,2015,34(4):955.[doi:10.6047/j.issn.1000-8241.2015.09.008]
[4]程宜强　李强林　蔡海生　徐志斌　范文斌.济淄天然气管道清管收球速度的控制[J].油气储运,2014,33(1):108.[doi:10.6047/j.issn.1000-8241.2014.01.023]
　CHENG Yiqiang,LI Qianglin,CAI Haisheng,et al.Control of receiving velocity during pigging for Ji-Zi Natural Gas Pipeline[J].Oil & Gas Storage and Transportation,2014,33(4):108.[doi:10.6047/j.issn.1000-8241.2014.01.023]
[5]杨小龙.天然气长输管道并行跨接方案比选[J].油气储运,2016,35(预出版):1.
　YANG Xiaolong.Comparison of the crossover schemes for the parallel long-distance natural gas pipeline[J].Oil & Gas Storage and Transportation,2016,35(4):1.
[6]陈亮　彭忍社　刘英杰　李瑜.气液执行机构电子爆管保护的原理及应用[J].油气储运,2016,35(预出版):1.
　CHEN Liang,PENG Renshe,LIU Yingjie,et al.Principle and application of electronic line burst protection of pneumatic-hydraulic actuator[J].Oil & Gas Storage and Transportation,2016,35(4):1.
[7]刘震,姬忠礼,吴小林,等.输气管道内颗粒物检测及分离器性能评价[J].油气储运,2016,35(1):47.[doi:10.6047/j.issn.1000-8241.2016.01.009]
　LIU Zhen,JI Zhongli,WU Xiaolin,et al.Detection on particulate matters in gas pipeline and assessment on separator performance[J].Oil & Gas Storage and Transportation,2016,35(4):47.[doi:10.6047/j.issn.1000-8241.2016.01.009]
[8]梁现华.天然气长输管道SCADA 系统建设与改进[J].油气储运,2014,33(10):1113.[doi:10.6047/j.issn.1000-8241.2014.10.019]
　LIANG Xianhua.Construction and improvement of SCADA system in long-distance gas pipeline[J].Oil & Gas Storage and Transportation,2014,33(4):1113.[doi:10.6047/j.issn.1000-8241.2014.10.019]
[9]刘英男,张鑫,单鲁维.基于特征线法的天然气管道放空时间的计算[J].油气储运,2014,33(12):1338.[doi:10.6047/j.issn.1000-8241.2014.12.017]
　LIU Yingnan,ZHANG Xin,SHAN Luwei.Characteristic method based calculation of venting time for natural gas pipeline[J].Oil & Gas Storage and Transportation,2014,33(4):1338.[doi:10.6047/j.issn.1000-8241.2014.12.017]
[10]温凯,张文伟,宫敬,等.天然气管道可靠性的计算方法[J].油气储运,2014,33(7):729.[doi:10.6047/j.issn.1000-8241.2014.07.009]
　WEN Kai,ZHANG Wenwei,GONG Jing,et al.Computation of gas pipeline reliability[J].Oil & Gas Storage and Transportation,2014,33(4):729.[doi:10.6047/j.issn.1000-8241.2014.07.009]

备注/Memo

收稿日期:2013-1-31;改回日期:2013-5-31。
作者简介:宋静，工程师，1980年生，2005年毕业于中国石油大学（华东）石油工程专业，现主要从事长输天然气管道的安全与运行管理工作。Tel：18660118910，Email：songjing416@163.com

更新日期/Last Update: 1900-01-01