地铁杂散电流对埋地管道的干扰规律
|
摘要
近年来,随着城市地铁的迅速发展,地铁附近的埋地管道常遭受动态直流干扰,造成管道通电电位的持续波动,严重影响了管道的安全运行和日常管理。对遭受地铁杂散电流干扰的某管道开展现场测试,分析了地铁杂散电流对埋地管道的干扰规律。结果表明:地铁运行对管道通电电位的波动有较大影响;地铁杂散电流干扰的强度随着管道至地铁线路距离的减小而增大,距离地铁站较近的管段具有更高的腐蚀风险;受地铁杂散电流干扰的管道不同位置互为流入、流出位置,同一位置杂散电流的流入、流出特性随时间变化。
In recent years,with the rapid development of urban subways,buried pipelines near subways often suffer from dynamic DC interference,causing continuous fluctuations in the on potential of pipelines,which seriously affects the safe operation and daily management of pipelines.Field tests were carried out on a pipeline that was disturbed by the stray current of subway,and the interference law of the stray current of the subway on the buried pipeline was analyzed.The results showed that the subway operation had a great influence on the fluctuation of the on potential of the pipeline;the intensity of the disturbance of the subway stray current increased with the decrease of the distance from the pipeline to the subway line,and the pipeline section closer to the subway station had a higher corrosion risk.The different locations of the pipeline interfered by the stray current of the subway were inflow and outflow positions,and the inflow and outflow characteristics of the stray current at the same position would change with time.
In recent years,with the rapid development of urban subways,buried pipelines near subways often suffer from dynamic DC interference,causing continuous fluctuations in the on potential of pipelines,which seriously affects the safe operation and daily management of pipelines.Field tests were carried out on a pipeline that was disturbed by the stray current of subway,and the interference law of the stray current of the subway on the buried pipeline was analyzed.The results showed that the subway operation had a great influence on the fluctuation of the on potential of the pipeline;the intensity of the disturbance of the subway stray current increased with the decrease of the distance from the pipeline to the subway line,and the pipeline section closer to the subway station had a higher corrosion risk.The different locations of the pipeline interfered by the stray current of the subway were inflow and outflow positions,and the inflow and outflow characteristics of the stray current at the same position would change with time.
引文
[1]庞瑾,顾保南.2016年中国城市轨道交通运营线路统计和分析——中国城市轨道交通“年报快递”之四[J].城市轨道交通研究,2017(1):1-5.
[2]中国城市轨道交通年度报告课题组.中国城市轨道交通年度报告2015[M].北京:北京交通大学出版社,2016.
[3]刘争,李威力,钟周全.地铁杂散电流的危害及检测实例[J].全面腐蚀控制,2016,30(9):56-58.
[4]陈志光,秦朝葵,计雪松.上海轨道交通二号线杂散电流测试分析[J].腐蚀与防护,2008,29(6):344-347.
[5]徐颢,李代莉.轨道交通直流杂散电流给埋地钢管防腐系统带来的新风险[J].燃气技术,2016(3):12.
[6]刘文权.城市地铁杂散电流对埋地输油管道的危害[J].全面腐蚀控制,2014,28(11):29.
[7] CHARALAMBOUS C A,AYLOTT P.Dynamic stray current evaluations on cut-and-cover sections of DC metro systems[J].IEEE Transactions on Vehicular Technology,2014,63(8):3530.
[8] SOLAGARD A O S,CARSANA M,GEIKER M R.Experimental observations of stray current effects on steel fibres embedded in mortar[J].Corrosion Science,2013,74(12):1.
[9] BERTOLINI L,CARSANA M,PEDEFERRI P.Corrosion behaviour of steel in concrete in the presence of stray current[J].Corrosion Science,2007,49(3):1056-1068.
[10] OGUNSOLA A,MARISCOTTI A,SANDROLINI L.Estimation of stray current from a DC-Electrified railway and impressed potential on a buried pipe[J].IEEE Transactions on Power Delivery,2012,27(4):2238-2246.
[11] SOLGAARD A O S,CARSANA M,GEIKER M R,et al.Experimental observations of stray current effects on steel fibres embedded in mortar[J].Corrosion Science,2013,74:1-12.
[12]李振芳,王富荣,许聪颖.深圳地铁3号线杂散电流实时监测系统[J].都市快轨交通,2007,20(2):80-83.
[13]李言涛,吴茂涛,郑凤,等.管道杂散电流监测及川西气田监测实例[J].全面腐蚀控制,2010,24(1):25-28.
[14] CHEN Z G,QIN C K,TANG J X T.Experiment research of dynamic stray current interference on buried gas pipeline from urban rail transit[J].Journal of Natural Gas Science and Engineering,2013(15):76-81.
[15]马晓华.上海虹桥机场航油输送管道受地铁杂散电流干扰的检测与防护[J].腐蚀与防护,2016,37(5):364.
[2]中国城市轨道交通年度报告课题组.中国城市轨道交通年度报告2015[M].北京:北京交通大学出版社,2016.
[3]刘争,李威力,钟周全.地铁杂散电流的危害及检测实例[J].全面腐蚀控制,2016,30(9):56-58.
[4]陈志光,秦朝葵,计雪松.上海轨道交通二号线杂散电流测试分析[J].腐蚀与防护,2008,29(6):344-347.
[5]徐颢,李代莉.轨道交通直流杂散电流给埋地钢管防腐系统带来的新风险[J].燃气技术,2016(3):12.
[6]刘文权.城市地铁杂散电流对埋地输油管道的危害[J].全面腐蚀控制,2014,28(11):29.
[7] CHARALAMBOUS C A,AYLOTT P.Dynamic stray current evaluations on cut-and-cover sections of DC metro systems[J].IEEE Transactions on Vehicular Technology,2014,63(8):3530.
[8] SOLAGARD A O S,CARSANA M,GEIKER M R.Experimental observations of stray current effects on steel fibres embedded in mortar[J].Corrosion Science,2013,74(12):1.
[9] BERTOLINI L,CARSANA M,PEDEFERRI P.Corrosion behaviour of steel in concrete in the presence of stray current[J].Corrosion Science,2007,49(3):1056-1068.
[10] OGUNSOLA A,MARISCOTTI A,SANDROLINI L.Estimation of stray current from a DC-Electrified railway and impressed potential on a buried pipe[J].IEEE Transactions on Power Delivery,2012,27(4):2238-2246.
[11] SOLGAARD A O S,CARSANA M,GEIKER M R,et al.Experimental observations of stray current effects on steel fibres embedded in mortar[J].Corrosion Science,2013,74:1-12.
[12]李振芳,王富荣,许聪颖.深圳地铁3号线杂散电流实时监测系统[J].都市快轨交通,2007,20(2):80-83.
[13]李言涛,吴茂涛,郑凤,等.管道杂散电流监测及川西气田监测实例[J].全面腐蚀控制,2010,24(1):25-28.
[14] CHEN Z G,QIN C K,TANG J X T.Experiment research of dynamic stray current interference on buried gas pipeline from urban rail transit[J].Journal of Natural Gas Science and Engineering,2013(15):76-81.
[15]马晓华.上海虹桥机场航油输送管道受地铁杂散电流干扰的检测与防护[J].腐蚀与防护,2016,37(5):364.