摘要
介绍了循环水地下回水管道引起腐蚀泄漏的失效分析情况,认为管道主要腐蚀形式为局部点蚀.穿孔的原因除防护层的缺陷外,主要是由于静电接地铜极与钢管的距离太近、发生电偶腐蚀所致;并介绍了所采取的防护措施.
The analysis of the corrosion failure of the underground cooling water pipeline was described. It was concluded that the main form of corrosion of the pipeline was the pitting corrosion resulted from galvanic corrosion because of too a short distance between grounding copper and steel pipeline an addition besides the defects of protection coating. The protection measures taken were introduced.
出处
《石油化工腐蚀与防护》
CAS
1998年第1期35-36,共2页
Corrosion & Protection In Petrochemical Industry
关键词
地下管道
涤纶厂
循环水
腐蚀
防护
underground pipeline, grounding copper, galvanic corrosion
