埋地管道外腐蚀致因事故树分析
FAULT TREE ANALYSIS OF EXTERNAL FACTORS OF SOIL CORROSION FOR BURIED PIPELINE
摘 要
土壤腐蚀是导致埋地输油气管道腐蚀失效的主要形式.由于土壤环境的复杂性和多样性,土壤介质对埋地金属管道的腐蚀电化学机理和过程相对复杂.文章简要阐述了埋地管道土壤电化学腐蚀机理：阴极过程主要是氧的还原,在阴极区域生成OH-离子；阳极过程主要为铁的氧化过程,氧化后的Fe2+离子与土壤发生水合作用.采用事故树分析对管道外腐蚀进行致因分析和结构重要度分析,得出了管道腐蚀事故主要与土壤腐蚀性和防腐层状况有关及重要程度.最后,提出了埋地管道土壤腐蚀防护措施和相关建议.
电化学
事故树
阴极保护
涂层
Soil corrosion
Electrochemistry
Fault tree analysis(FTA)
Cathodic protection
Coating
Abstract
The soil corrosion is a main form which results in corrosion failure of buried pipelines.Because of the complexity and variety of soil surroundings,the mechanism of electrochemical corrosion and process is complex correspondingly.This paper introduces the mechanism of electrochemical corrosion briefly.Oxygen is deoxidized and OH- ions are created in cathodic area;iron is oxidized and the products of Fe2+ ions are hydrated with water from soil in anodic area.The corrosion factors and structural importance are analyzed by fault tree analysis(FTA),and then the soil corrosion factors and status of anti-corrosive coatings and structural importance are obtained for the reasons of corrosion on buried pipelines.Some measures and proposals are presented for soil anti-corrosive methods.
中图分类号 U177
所属栏目 应用技术
基金项目 中国石油化工股份有限公司基金资助项目(No.305017)
收稿日期 2007/4/20
修改稿日期 2007/5/17
网络出版日期
作者单位点击查看
引用该论文: WANG Wen-he,SHEN Shi-ming. FAULT TREE ANALYSIS OF EXTERNAL FACTORS OF SOIL CORROSION FOR BURIED PIPELINE[J]. Corrosion & Protection, 2007, 28(11): 587～589
被引情况:
【1】张江江,张志宏, "雅克拉气田天然气西气东输管道腐蚀与检测评价",腐蚀与防护 36, 234-239(2015)
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参考文献
【1】方智,吴荫顺.埋地输油管线土壤腐蚀分析[J].石油化工腐蚀与防护,1995,1:18-19.
【2】罗金恒,王曰燕.在役油气管道土壤腐蚀研究现状[J].石油工程建设,2004,6:1-5.
【3】汪元辉.安全系统工程[M].天津:天津大学出版社,2003,8:146-148,176-180.
【4】王京红.石化管道系统腐蚀泄漏与预防[J].现代化工,2002,22(9):46-48.
【5】Werner Gerwin,Roland Baumhauer.Effect of soil parameters on the corrosion of archaeological metal finds[J].Geoderma96,2000:63-80.
【6】Anees U,Malik,et al.Corrosion and mechanical behavior of FBE in aqueous media[J].Desalination 150,2002:247-254.
【2】罗金恒,王曰燕.在役油气管道土壤腐蚀研究现状[J].石油工程建设,2004,6:1-5.
【3】汪元辉.安全系统工程[M].天津:天津大学出版社,2003,8:146-148,176-180.
【4】王京红.石化管道系统腐蚀泄漏与预防[J].现代化工,2002,22(9):46-48.
【5】Werner Gerwin,Roland Baumhauer.Effect of soil parameters on the corrosion of archaeological metal finds[J].Geoderma96,2000:63-80.
【6】Anees U,Malik,et al.Corrosion and mechanical behavior of FBE in aqueous media[J].Desalination 150,2002:247-254.
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