摘要
中国新建管道多敷设于恶劣环境地区,对管道安全运行提出更高要求,腐蚀是管道失效的重要原因。阐述了近年来管道腐蚀防护的技术难点和瓶颈问题,包括阴极保护准则、阴极保护电位测试、高寒区管道阴极保护、阴极保护系统维护、三层结构聚乙烯(3LPE)防腐层剥离、保温层下腐蚀、含套管穿越管道阴极保护等方面。结合国内外管道工程实践、标准规范和技术现状,提出了可行、合理的应对方法及措施。针对提高国内管道安全管理水平,提出了管道阴极保护技术未来的科研攻关建议。
Newly constructed pipeline are mainly laid in harsh environment area in China.Pipeline safe operation requirement is becoming stricter.Corrosion is an important cause of pipeline failure.The technical difficulties and bottlenecks of pipeline corrosion protection in recent years are listed,including cathodic protection criteria,cathodic protection potential test,pipeline cathodic protection in extremely cold regions,cathodic protection system maintenance,three-layer-polyethylene(3LPE)anti-corrosion coating stripping,corrosion under insulation,cathodic protection of pipeline crossing with casing.Combined with the domestic and foreign pipeline engineering practice,standards and technical status,the feasible and reasonable response methods and measures are put forward.In order to improve pipeline safety management in China,some suggestions for tackling key problems in pipeline cathodic protection technology in the future are put forward.
作者
张超
秦晓东
李萌
高露源
蒋玉卓
孙大为
Zhang Chao;Qin Xiaodong;Li Meng;Gao Luyuan;Jiang Yuzhuo;Sun Dawei(Sino-Pipeline International Company Limited Myanmar-China Oil&Gas Pipeline Project Mandalay Operation Office,Beijing,100029,China;Changsha Sub-Company of West-East Gas Pipeline Co.Ltd.,PipeChina Corporation,Changsha,410000,China;Changchun Sub-Company of North Pipeline Co.Ltd.,PipeChina Corporation,Changchun,130000,China;Pipeline at China Petroleum Qinghai Oilfield Company,Geermu,816000,China;Unit 32723 of the People‘s Liberation Army,Chengde,067400,China)
出处
《石油化工自动化》
CAS
2021年第2期49-51,64,共4页
Automation in Petro-chemical Industry
关键词
管道
腐蚀
阴极保护
电位
准则
防腐层
pipeline
corrosion
catholic protection
potential
criterion
anti-corrosion coating
