基于ICCP埋地管道腐蚀防护工程的应用研究
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摘要
埋地管道的腐蚀防护工程对处于长期不间断运行状态的多段线长距离管道至关重要,以外加电流阴极保护(ICCP,Impressed Current Cathodic Protection)为主的腐蚀防护方案在埋地管道工程中的应用广泛,能有效抑制金属构件在土壤中的腐蚀削弱。针对ICCP在埋地管道工程中的应用进行理论分析,主要涉及金属腐蚀原理及管道防腐蚀基本方法、腐蚀检测过程分析、管道锈蚀后的再保护、外加电流法在管道工程中的应用以及局限性分析、保障管道防护工程安全性和完整性的针对措施,并对ICCP的管道工程应用要点进行了归纳总结。
The corrosion protection engineering of buried pipelines is vital for long-distance pipelines with long-term uninterrupted operation. The corrosion protection scheme based on the impressed current cathodic protection(ICCP)has been widely used in buried pipeline engineering. It effectively inhibits the corrosion weakening of metal components in the soil.The applications of ICCP in buried pipeline engineering are analyzed theoretically, including metal corrosion principle and basic method of pipeline anti-corrosion, corrosion detection process analysis, re-protection after pipeline corrosion and application of impressed current method in pipeline engineering, limitation analysis and measures to ensure the safety and integrity of pipeline protection engineering. The main application points of ICCP in buried pipeline engineering are summarized in brief.
The corrosion protection engineering of buried pipelines is vital for long-distance pipelines with long-term uninterrupted operation. The corrosion protection scheme based on the impressed current cathodic protection(ICCP)has been widely used in buried pipeline engineering. It effectively inhibits the corrosion weakening of metal components in the soil.The applications of ICCP in buried pipeline engineering are analyzed theoretically, including metal corrosion principle and basic method of pipeline anti-corrosion, corrosion detection process analysis, re-protection after pipeline corrosion and application of impressed current method in pipeline engineering, limitation analysis and measures to ensure the safety and integrity of pipeline protection engineering. The main application points of ICCP in buried pipeline engineering are summarized in brief.
引文
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[2]尚兴彬,胡乃科,张守峰,等.外加电流阴极保护电流屏蔽与阴极干扰研究[J].石油化工腐蚀与防护,2015,32(6):14-17.
[3]张平究.不同生态条件下土壤微生物生物化学和分子生态变化及其土壤质量指示意义——以太湖地区水稻土和西南喀斯特土壤为例[D].南京:南京农业大学,2006.
[4]李程,袁林国,张淑琴,等.塔河油田管道阴极保护电位测试与分析[J].腐蚀与防护,2012,33(2):173-176.
[5]万琼.某输气管道阴极保护电位欠保护原因探究[J].材料保护,2018,51(4):137-140.
[6]勒巍,於涛.某成品油管道的外加电流阴极保护技术应用[J].全面腐蚀控制,2017,31(2):43-45.
[7]苏俊华,高立群,冯仲文,等.埋地钢质管道交流干扰及排流研究[J].腐蚀与防护,2011,32(7):551-554.
[8]王新华,陈振华,何仁洋.埋地钢质管道交流干扰测试与评价[J].腐蚀与防护,2011,32(1):66-70.
[9]赵晓云,陶文亮,李龙江,等.国内外柔性阳极的开发应用现状及展望[J].腐蚀科学与防护技术,2013,25(5):437-441.
[10]徐公银.柔性阳极在原油储备库区域阴极保护的应用[J].腐蚀与防护,2012,33(1):72-74.
[11]王芷芳,吕承杰.深井阳极地床的应用[J].石油化工腐蚀与防护,2004,21(6):43-45.
[12]谢东,蒋涛,蹇磊,等.外加电流电化学保护在输水管道防腐蚀工程中的应用[J].全面腐蚀控制,2004,18(6):16-19.
[13]李莎.供水管道管壁腐蚀及摩阻系数研究[D].重庆:重庆大学,2013.