湖南成品油管道杂散电流干扰检测评价及防护措施
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摘要
为有效识别杂散电流的干扰源,确定杂散电流干扰类型对管道的影响,综合应用CIPS(密间隔管地电位测试)、电位检测和电流密度等检测评价方法,开展了湖南成品油管道杂散电流测试与防护措施研究。研究结果表明:湖南成品油管道受到较严重的交、直流杂散电流干扰,其中有5个管段受到较严重的交流杂散电流干扰,3个管段受到较严重的直流杂散电流干扰;京广铁路、武广高铁、沪昆铁路、城际铁路等电气化铁路为交流干扰源,轨道交通地铁为直流干扰源;提出了交流干扰和直流干扰应分别采用固态去耦合器接地排流装置和极性排流装置措施,以降低杂散电流对输油管道的影响。通过检测杂散电流干扰,分析各种干扰因素,制定合理的防护措施,为管道日常管理提供科学依据和重要的科技手段。
In order to effectively identify the interference source of stray current,determine the effect of the type of stray current interference on pipelines,the study on detection and preventive measures of stray current interference of product oil pipelines in Hunan is carried out by various detection and evaluation methods such as CIPS,potential detection and current density. Results show that pipelines in Hunan are affected by serious AC and DC stray current interference. Among them,5 pipe segments are seriously interfered by AC stray current,and 3 pipe segments are seriously interfered by the DC stray current. The electrified railways are the source of AC interference, such as Jing-Guang railway, WuGuang high speed railway, Hu-Kun railway and intercity railways, and the subway is the source of DC interference. It is proposed that the influence of stray current on oil pipeline should be reduced by using the solid-state decoupler ground drainage device and the polarized electric drainage device respectively for AC interference and DC interference. Through the detection of stray current interference,various interference factors are analyzed,reasonable preventive measures are worked out,thus providing scientific basis and important scientific and technological means for the daily management of pipelines.
In order to effectively identify the interference source of stray current,determine the effect of the type of stray current interference on pipelines,the study on detection and preventive measures of stray current interference of product oil pipelines in Hunan is carried out by various detection and evaluation methods such as CIPS,potential detection and current density. Results show that pipelines in Hunan are affected by serious AC and DC stray current interference. Among them,5 pipe segments are seriously interfered by AC stray current,and 3 pipe segments are seriously interfered by the DC stray current. The electrified railways are the source of AC interference, such as Jing-Guang railway, WuGuang high speed railway, Hu-Kun railway and intercity railways, and the subway is the source of DC interference. It is proposed that the influence of stray current on oil pipeline should be reduced by using the solid-state decoupler ground drainage device and the polarized electric drainage device respectively for AC interference and DC interference. Through the detection of stray current interference,various interference factors are analyzed,reasonable preventive measures are worked out,thus providing scientific basis and important scientific and technological means for the daily management of pipelines.
引文
[1]中华人民共和国住房和城乡建设部,中华人民共和国国家质量监督检验检疫总局.埋地钢制管道交流干扰防护技术标准:GB/T 50698—2011[S].北京:中国计划出版社,2011:5-11.
[2]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.钢质管道外腐蚀控制规范:GB/T21447—2008[S].北京:中国标准出版社,2008:10-11.
[3] BOSCH R W, BOGAERTS W F. A theoretical study of AC-induced corrosion considering diffusion phenomena[J].Corrossion Science,1998,40(2):323-336.
[4]胡士信,路民旭,杜艳霞,等.管道交流腐蚀的新观点[J].腐蚀与防护,2010,31(6):419-424.
[5]杨燕,李自力,文闯.杂散电流对X70钢干扰影响的腐蚀试验[J].腐蚀与防护,2013,34(5):391-394.
[6]张平,程明,屠海波.陕京三线交流干扰防护新技术应用与优化[J].腐蚀与防护,2012,33(8):724-727.
[7]国家发展和改革委员会.埋地钢制管道直流排流保护技术标准:SY/T 0017—2006[S].北京:石油工业出版社,2006:10-11.
[8]孙银娟,成杰,王勃,等.天然气管道杂散电流干扰监测及防护措施[J].油气田地面工程, 2015, 34(9):76-78.
[9] National Association of Corrosive Engineers. Control of external corrosion on underground or submerged metal:NACE SP0169-2013[S].Houston:NACE International,2013.
[10]杨永,何仁洋,李刚,等.埋地钢质管道杂散电流的检测与防护[J].腐蚀与防护,2012,33(4):324-327.
[11]任峰,何仁洋,肖勇,等.埋地钢制管道基于SCM检测仪的杂散电流测试与评价[J].管道技术与设备,2011(4):24-32.
[12]李明,董列武,谢成,等.输油管道杂散电流检测评价与防护实践[J].材料保护,2017,50(2):91-95.
[13]李明,王晓霖,蒲宏斌,等.埋地油气管道杂散电流检测与防护[J].北京石油化工学院学报, 2014, 22(4):49-53.
[2]中华人民共和国国家质量监督检验检疫总局,中国国家标准化管理委员会.钢质管道外腐蚀控制规范:GB/T21447—2008[S].北京:中国标准出版社,2008:10-11.
[3] BOSCH R W, BOGAERTS W F. A theoretical study of AC-induced corrosion considering diffusion phenomena[J].Corrossion Science,1998,40(2):323-336.
[4]胡士信,路民旭,杜艳霞,等.管道交流腐蚀的新观点[J].腐蚀与防护,2010,31(6):419-424.
[5]杨燕,李自力,文闯.杂散电流对X70钢干扰影响的腐蚀试验[J].腐蚀与防护,2013,34(5):391-394.
[6]张平,程明,屠海波.陕京三线交流干扰防护新技术应用与优化[J].腐蚀与防护,2012,33(8):724-727.
[7]国家发展和改革委员会.埋地钢制管道直流排流保护技术标准:SY/T 0017—2006[S].北京:石油工业出版社,2006:10-11.
[8]孙银娟,成杰,王勃,等.天然气管道杂散电流干扰监测及防护措施[J].油气田地面工程, 2015, 34(9):76-78.
[9] National Association of Corrosive Engineers. Control of external corrosion on underground or submerged metal:NACE SP0169-2013[S].Houston:NACE International,2013.
[10]杨永,何仁洋,李刚,等.埋地钢质管道杂散电流的检测与防护[J].腐蚀与防护,2012,33(4):324-327.
[11]任峰,何仁洋,肖勇,等.埋地钢制管道基于SCM检测仪的杂散电流测试与评价[J].管道技术与设备,2011(4):24-32.
[12]李明,董列武,谢成,等.输油管道杂散电流检测评价与防护实践[J].材料保护,2017,50(2):91-95.
[13]李明,王晓霖,蒲宏斌,等.埋地油气管道杂散电流检测与防护[J].北京石油化工学院学报, 2014, 22(4):49-53.