接地材料对埋地金属管道阴极保护效果及电流需求量的影响
Effect of Electrical Grounding Material on the Cathodic Protection of Buried Metallic Pipeline and Its Current Demand
摘 要
通过室内模拟试验探讨了接地材料的极化特性及其对管道阴极保护电流需求量的影响，同时也研究接地极与管道的间距对管道极化电位的影响。结果表明: 接地材料为接地模块、铜包钢、锌包钢时，体系对阴极保护电流的需求量依次降低，锌包钢作为接地材料的服役性能更优越。当接地极与试片的间距超过试样直径的5倍时，对试样极化电位基本不变，即对试样极化电位的影响可以忽略。
接地
管道
阴极保护效果
regional cathodic protection
grounding
pipeline
efficiency of cathodic protection
Abstract
Polarization characteristics of various grounding materials were measured in laboratory and then the effect of grounding materials on cathodic protection current demand of pipeline was discussed. Moreover, the effect of space between grounding and pipeline on polarization potential was studied by indoor simulation experiments. The results indicated that cathodic protection current demand decreased in turn, when the grounding material was grounding module, copper clad steel and zinc clad steel. Among them, the zinc clad steel was the best material for grounding. When the space between grounding and pipeline was beyond 5 times of sample diameter, the polarization potential of sample stayed stable, indicating that the effect of space was negligible.
中图分类号 TE832 DOI 10.11973/fsyfh-201612012
所属栏目 应用技术
基金项目
收稿日期 2015/6/15
修改稿日期
网络出版日期
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备注杜艳霞（1980-），博士，副研究员，从事腐蚀与防护研究工作
引用该论文: JIANG Zi-tao,DU Yan-xia,LIANG Yi,XIONG Jin-gen,SUN Bing-bing. Effect of Electrical Grounding Material on the Cathodic Protection of Buried Metallic Pipeline and Its Current Demand[J]. Corrosion & Protection, 2016, 37(12): 1003
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参考文献
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【2】马伟平,张国忠,白宗成,等. 区域性阴极保护技术研究进展[J]. 油气储运,2005,24(9):38-42.
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【6】KIRKPATRICK E L. Alternatives to copper grounding in sites requiring cathodic protection[C]//Corrosion 1986. Houston,Texas:NACE,1986:9.
【7】葛艾天，刘权，陈国桥. 铜接地系统对输油气站场埋地管道影响[J]. 天然气与石油,2010,28(2):15-17.
【8】ROMANOFF M,SPELLER F N. Underground Corrosion[M]. Washington:US Government Printing Office,1957.
【9】HUSOCK B. The effect of electrical grounding systems on underground corrosion and cathodic protection[J]. American Institute of Electrical Engineers,1960,79(1):5-10.
【10】KIRKPATRICK E L. Effects of electrical grounding on corrosion[C]//Corrosion 1979. Houston,Texas:NACE,1979:53.
【11】BLADHOLM E F,KORMENDy L J. Cathodic protection and isolation solve corrosion problem of subsurface piping in generating station[J]. Material Performance,1963,2(2):2-27.
【12】GHESQUIERE J D. Cathodic protection and zinc grounding in industrial plant construction[J]. Corrosion,1961,17(3):149-153.
【13】闫爱军,陈沂,冯拉俊. 几种接地网材料在土壤中的腐蚀特性研究[J]. 腐蚀科学与防护技术,2010,22(3):197-199.
【14】聂新辉，郑敏聪，李建华. 铜质接地网材料电化学腐蚀行为[J]. 腐蚀与防护,2012,33(9):817-819.
【15】GUMMOW R A. Cathodic protection current requirements for electrical grounding materials[C]//Corrosion 2004. Houston,Texas:NACE,2004:45.
【2】马伟平,张国忠,白宗成,等. 区域性阴极保护技术研究进展[J]. 油气储运,2005,24(9):38-42.
【3】罗卫国,赵新伟,白真权,等. 阿赛输油管线腐蚀状况调查及分析[J]. 焊管,2004,27(3):14-17.
【4】杜艳霞,张国忠. 输油泵站区域性阴极保护实施中的问题[J]. 腐蚀与防护,2006,27(8):417-421.
【5】KIRKPATRICK E L. Electrical grounding case histories[C]//Corrosion 2003. Houston,Texas:NACE,2003:701.
【6】KIRKPATRICK E L. Alternatives to copper grounding in sites requiring cathodic protection[C]//Corrosion 1986. Houston,Texas:NACE,1986:9.
【7】葛艾天，刘权，陈国桥. 铜接地系统对输油气站场埋地管道影响[J]. 天然气与石油,2010,28(2):15-17.
【8】ROMANOFF M,SPELLER F N. Underground Corrosion[M]. Washington:US Government Printing Office,1957.
【9】HUSOCK B. The effect of electrical grounding systems on underground corrosion and cathodic protection[J]. American Institute of Electrical Engineers,1960,79(1):5-10.
【10】KIRKPATRICK E L. Effects of electrical grounding on corrosion[C]//Corrosion 1979. Houston,Texas:NACE,1979:53.
【11】BLADHOLM E F,KORMENDy L J. Cathodic protection and isolation solve corrosion problem of subsurface piping in generating station[J]. Material Performance,1963,2(2):2-27.
【12】GHESQUIERE J D. Cathodic protection and zinc grounding in industrial plant construction[J]. Corrosion,1961,17(3):149-153.
【13】闫爱军,陈沂,冯拉俊. 几种接地网材料在土壤中的腐蚀特性研究[J]. 腐蚀科学与防护技术,2010,22(3):197-199.
【14】聂新辉，郑敏聪，李建华. 铜质接地网材料电化学腐蚀行为[J]. 腐蚀与防护,2012,33(9):817-819.
【15】GUMMOW R A. Cathodic protection current requirements for electrical grounding materials[C]//Corrosion 2004. Houston,Texas:NACE,2004:45.
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