网状阳极在大型储罐底板阴极保护工程中的应用
APPLICATION OF GRID ANODE TO CATHODIC PROTECTION SYSTEM FOR LARGE-SCALE STORAGE TANKS
摘 要
文章介绍了网状阳极在茂名、湛江、岚山和上海地区的大型储罐阴极保护系统的应用情况.从实际运行的结果看,罐底板的保护电位都达到了设计要求和标准规定,保护电位分布相当均匀.保护电流密度也满足了设计要求.保护效果较好,表明网状阳极对于大型储罐的外底板的阴极保护是一种较好的解决方案.对于发现的几个问题也作了讨论.
网状阳极
MMO
大型储罐
Cathodic protection
Grid anode system
MMO
Large-scale storage tank
Abstract
The applications of MMO (mixed metal oxide) grid anodes to large-scale storage tanks in Maoming,Zhanjiang,Lanshan and Shanghai are summarized.From the practical results,the protection potentials and protection current densities meet the design requirements and are in accord with technical standards.The distribution of protection potentials on the tank bottom is quite uniform.It indicates that the grid anode system is effective for the large-scale storage tank protection from corrosion.Other problems encountered are also discussed.
中图分类号 TG174.41
所属栏目 应用技术
基金项目
收稿日期 2005/7/11
修改稿日期
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引用该论文: SU Jun-hua,WANG Chen,LI Can-lei,YANG Xiang-feng,YAN Yi,PAN Wen-bin,LI Hong-bin. APPLICATION OF GRID ANODE TO CATHODIC PROTECTION SYSTEM FOR LARGE-SCALE STORAGE TANKS[J]. Corrosion & Protection, 2006, 27(4): 184～186
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参考文献
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【2】过梦飞.混合金属氧化物(MMO)网状阳极系统的设计和安装[J].腐蚀与防护,2000,21(11):495-497.
【3】过梦飞.使用网状阳极的储罐阴极保护系统中若干问题的讨论[J].腐蚀与防护,2002,23(5):208-211.
【4】闫久红,丁乙,胡士信,等.柔性阳极在库鄯输油管道上的应用[J].油气储运,1999,18(4):33-38.
【5】Rajani G l.Modern trend in impressesd current anodes for cathodic protection[A].Proc.6th Middle East Corrosion Conf[C].Bahrain:1994.383.
【6】Reding J T.Performance of mixed metal oxide activated titanium anodes in deep ground beds[A].Corrosion 87[C].NACE,1987.9.
【7】API RP 651-1991,Cathodic protection of aboveground petroleum storage tanks[S].
【8】冯骅,冯洪臣.网状阳极在储罐底板阴极保护中的应用[J].腐蚀与防护,2001,22(2):69-71.
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