某滨海电厂钢结构腐蚀防护  

CORROSION PROTECTION OF THE STEEL CONSTRUCTION IN AN OFFSHORE POWER PLANT

作　　者：刘刚[1] 张奎志[1] 曲政[1] 韩冰[1] 

机构地区：[1]钢铁研究总院青岛海洋腐蚀研究所,青岛266071

出　　处：《腐蚀与防护》2004年第9期400-401,408,共3页Corrosion & Protection

摘　　要：滨海某电厂4台机组锅炉炉架及其附属钢结构在海洋大气环境中腐蚀严重,其主要腐蚀原因是海洋大气中富含盐分,干湿交替导致金属表面盐浓度较高,水膜中富含氧分子,且溶有其它酸性气体,腐蚀性极强,因而钢结构腐蚀较快。为此提出有机涂层配套体系和热喷锌或喷铝两种解决方案,以确保电厂设施正常安全运行。The steel construction of a power plant corroded serevely in marine atmosphere environment. The main reason was that salts in atmosphere deposited on the steel surface, oxygen saturated in the liquid film and acidic gas dissolved in the liquid film. Organic coatings and thermal spray zinc or aluminium can be used for corrosion protection.

关 键 词：海洋大气 腐蚀 钢结构 涂料 热喷锌 热喷铝 

分 类 号：TG174.4[金属学及工艺—金属表面处理]