埋地管道外防腐层补伤材料层次分析  

Hierarchical Analysis on Repair Material for External Coating of Buried Pipeline

作　　者：陶友卓 马廷霞[1] 李振军 陶厅 TAO Youzhuo;MATingxia;LI Zhenjun;TAO Ting(School of Mechanical and Electrical Engineering,Southwest Petroleum University,Chengdu 610500,China;China National Petroleum Corporation Western Pipeline Branch,Urumqi 830011,China)

机构地区：[1]西南石油大学机电工程学院,成都610500 [2]中石油管道有限责任公司西部分公司,乌鲁木齐830011

出　　处：《腐蚀科学与防护技术》2019年第6期603-608,共6页Corrosion Science and Protection Technology

摘　　要：三层聚乙烯涂层(3PE)已广泛用作埋地管道的外防腐层,对3PE外防腐层进行修复所采用材料的性能一直是业界所关注的核心问题。针对无溶剂环氧、矿脂油带、粘弹体和冷缠胶带4种补伤材料,采用层次分析法(AHP)从材料的基本性能、施工难度及可靠性、经济适用性等性能指标建立综合评价预测模型,对基本性能的实验数据联合对开挖验证补口的结果分析以及材料使用的综合成本进行综合对比分析。结果表明:粘弹体是优异的补伤材料,粘结性是重要的基本性能指标,预测使用比例越高的补伤修复材料其综合性能越好,且在腐蚀性越强的土壤环境中,综合性能高的补伤材料使用比例越高。Three-layer polyethylene coating(3PE)has been widely used as an external coating for buried pipelines.The property of materials used for repairing 3PE external coatings has always been a core concern of the industry.The comprehensive evaluation and prediction,for the four kinds of repairing materials such as solvent-free epoxy,petrol-oil belt,viscoelastic body and cold-wrapped tape,are established by using analytic hierarchy process(AHP)in terms of the basic property of materials,constructiondifficulty and-reliability,and economic applicability.The model compares the empirical data of the basic performance with the verification of the repairing effectiveness for the coating on pipeline and the comprehensive cost of the utilized materials.The results show that viscoelastic body is the most excellent material for repairing the damaged parts.Adhesion is the most important basic property indicator.According to the assessment,it follows that the higher the utilization rate is,the better the comprehensive property is for the repairing material.In high corrosive soil environment the composite material with high comprehensive property presents the higher utilization rate.

关 键 词：外防腐层 补伤材料 材料性能 层次分析法 粘弹体 

分 类 号：TE88[石油与天然气工程—油气储运工程]