瞬变电磁法在燃气管道腐蚀检测中的应用.pdfVIP

　 2015年 2015　 　 第3期 Pipeline　 Technique　 and　 Equipment No．3　 瞬变电磁法在燃气管道腐蚀检测中的应用 于润桥,刘　 健,曹　 煜,林　 炎,王　 亮 (南昌航空大学,江西南昌　 330063) 　 　 摘要:燃气管道运营过程中,会受很多因素影响,使其失效,发生泄漏、造成事故,其中最常见的问 题就是管体自身的腐蚀老化。 文中提出用瞬变电磁法(TEM)检测埋地燃气管道,主要介绍了瞬变电磁 法检测在役燃气管道的原理,并结合工程实例对燃气管道进行检测,以验证此方法的可行性。 结果表 明:利用瞬变电磁法检测埋地燃气管道腐蚀具有有效性和实用性,应进一步研究以提高检测精度与效 率,为保障燃气管道安全运营提供新的方法。 关键词:瞬变电磁法;燃气管道;腐蚀检测 - - - 中图分类号:TU996　 　 　 文献标识码:A　 　 　 文章编号:1004 9614(2015)03 0048 02 Application of Transient Electromagnetic Method in Gas Pipeline Corrosion Detecting YU Run-qiao,LIUJian,CAO Yu,LIN Yan,WANG Liang (Nanchang Hangkong University,Nanchang330063,China) Abstract:Many factors lead to the invalidation in the process of operation which might result in leaks or causing an acci- dent,one of the most common problems is the corrosion and ageing of the pipeline itself. Using transient electromagnetic method (TEM)to detect the buried gas pipelinewas presented. The paper mainly introduced the principle of the TEM to detect the gas pipeline in service and combined with engineering example of gas pipeline detecting that verifies the feasibility of this method. Results show thatusingtheTEMtodetectthecorrosionof buriedgaspipelinehascertainvalidity andpracticability,whichneeds furtherresearchtoimprovetheaccuracyandefficiency,andcanprovideanewmethodtoensurethesafeoperationofgaspipeline. Key words:transient electromagnetic method;gas pipeline;corrosion detection 0　 引言 前进行评估,属于事后及时补救。 目前,国内外对燃气管道进行检测的方法有很多 如果能对管道进行定期检测,便可对管道进行评