管道防腐层大修问题的探讨

Rehabilitating Pipeline Coating In Situ

针对东北输油管道防腐层检测和等级,分析了现有防腐层的状况。根据东北输油管道大修历程,总结出了防腐层大修段的选择、管道表面清理、管道补强及管道安全运行的经验和方法。提出防腐层大修材料应选择既要适应现场条件,又要与管道寿命相适应,目前以聚乙烯胶带为宜。

The status quo of pipeline coating in Northeast China is analyzed. Based on the rehabilitation of pipeline coatings,the paper summarizes the methods about the selection of rehabilitation,cleaning of pipe surface,and repair of pipe. It is pointed out that the coating materials to be selected should be not only suitable to the site conditions but also to the service life of pipe. The author considers the polyethylene tape to be available.