Enhancement of Cathodic Protection System for Gas Pipeline
摘 要
实践证明有效的阴极保护是埋地钢质管道防腐蚀控制的一种重要措施, 但是随着城镇化的进程加快, 处于郊外与农田地区的管道逐渐被工业园区、工厂、学校、医院等圈占, 管道改线、穿越铁路、公路以及河流日渐增多, 管道也随之出现了众多阴极保护不达标的区段。针对某输气管线电位出现的阴极保护不达标的问题,从管道改线、套管穿越与水泥配重、阴保站附近的防腐蚀层质量等方面进行了详实的分析, 利用馈电模拟试验对增设阴极保护站进行了可行性研究,并取得了良好的治理效果。
Abstract
It is proved that cathodic protection is an effective method for anti-corrosion of buried steel pipelines. With the rapid development of suburban districts, the buried steel pipeline rerouting, rail-crossing, road-crossing and river-crossing are growing, thus many pipelines can not meet the requirements of cathodic protection criteria. Aiming at the problem of cathodic protection potential did not reach the standard in a pipeline, the problems of pipeline rerouting and crossing, balance weight of concrete and anti-corrosion coating quality were analyzed in detail. Feed test was used to study the feasibility of builting one more CP station, and good governance effect was obtained.
中图分类号 TG174.41 TE88
所属栏目 应用技术
基金项目
收稿日期 2014/4/2
修改稿日期
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作者单位点击查看
联系人作者王江锋(wjffwj@126.com)
备注王江锋(1985-),助理工程师,学士,从事天然气长输管道管理工作,
引用该论文: WANG Jiang-feng,LI Hong-qi. Enhancement of Cathodic Protection System for Gas Pipeline[J]. Corrosion & Protection, 2014, 35(7): 758
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参考文献
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【5】BACKMANN W Von,SCHWENK W,PINZ W. Handbook of cathodic protection theory and practice of electrochemical protection process third edition[M]. Houston: Gulf Professional Publishing Company,1997.
【2】张珂,史国富,宁尚锋,等. 钢质套管对埋地钢质管道阴极保护的影响[J]. 腐蚀与防护,2007,28(11):25-28.
【3】SY/T 5918-2004埋地钢质管道外防腐层修复技术规范[S].
【4】皮博迪 A W 著(美). 管线腐蚀控制[M]. 吴建华等译. 北京: 化学工业出版社, 2004.
【5】BACKMANN W Von,SCHWENK W,PINZ W. Handbook of cathodic protection theory and practice of electrochemical protection process third edition[M]. Houston: Gulf Professional Publishing Company,1997.
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