摘要
管道的外涂层是天然气高压管道工程的一个基本组成部分,其对高压管线的长期安全稳定运行有着直接关系。通过对不同发展时期采用的管道外防腐涂层的比较,可看到三层 PE 复合结构防腐涂层最佳。作者在叙述了其主要功能、性能指标、施工技术及经济性后建议,在现阶段上海天然气高压管道选用这种涂层,而涉及架空管段处采用双层环氧粉末涂层。
Outer coating of pipeline is the basic part of natural gas high-pressure pipeline engineering,it hasdirect relation with the safety and stability of HP pipeline.After comparing with anti-corrosion outer coating indifferent periods,3-layer PE compound anti-corrosion coating is estimated as best.The author describes its mainfunctions,performance index,construction technical and economic analysis,then suggests HP pipeline must usethis kind of coating,and two-layer epoxy coating for overhead layout pipeline.
出处
《上海煤气》
2002年第3期6-8,共3页
Shanghai Gas
