气体极化技术在三层聚乙烯管道补口中的应用  

Application of Gas Polarization Technology on 3 LPE Pipeline Joints

作　　者：付伟[1] 谭哲 郑安升[1] 郭娟丽[1] Fu Wei;Tan Zhe;Zheng Ansheng;Guo Juanli(China Petroleum Pipeline Engineering Corporation,Langfang,Hebei 065000,China;CNPC Engineering Technology R&D Co.,Ltd.,Beijing 102206,China)

机构地区：[1]中国石油天然气管道工程有限公司,河北廊坊065000 [2]中国石油集团工程技术研究院有限公司,北京102206

出　　处：《涂料工业》2019年第12期68-71,共4页Paint & Coatings Industry

摘　　要：随着国内油气管道的发展,管道直径越来越大、管壁越来越薄,管道补口质量一直是整个防腐层的一个薄弱点。为了进一步提升管道补口质量,气体极化技术在中俄东线天然气管道工程(黑河-长岭)进行了大规模应用,表明采用该技术的环氧涂层与主管道的聚乙烯层附着力大大增强,有效地解决了环氧涂料与聚乙烯层之间的粘结问题。With the rapid development of oil and gas pipelines in China,the diameter of pipelines has became larger,while the pipeline wall was down to thinner,but the quality of pipeline joint has been a weak point of the whole corrosion protection system. In order to improve the protection,the technology of gas polarization was used in the East China-Russia natural gas pipeline project(HeiHe-ChangLing),it was concluded that the adhesion between epoxy coatings and polyethylene layer of main pipeline was greatly enhanced,and the problem of overlap edge warping between epoxy coating and polyethylene layer of main pipeline was effectively solved.

关 键 词：气体极化 三层聚乙烯 管道 补口 环氧涂层 

分 类 号：TQ639.2[化学工程—精细化工]