耐低温露点腐蚀非金属空气预热器的性能及应用  

Performance and Application of Low temperature Resistance Dew Point Corrosion in Nonmetal Air Preheater

作　　者：高晓红 李玖重 孙志钦 周天宇 GAO Xiaohong;LI Jiuchong;SUN Zhiqin;ZHOU Tianyu(Luoyang R&D Center of Technology,Sinopec Engineering(Group),Co.,Ltd.,Luoyang 471003,China)

机构地区：[1]中石化炼化工程集团洛阳技术研发中心,河南洛阳471003

出　　处：《石油化工腐蚀与防护》2020年第2期39-42,共4页Corrosion & Protection In Petrochemical Industry

基　　金：中国石油化工股份有限公司科技开发项目“新型空气预热器的研发及工业应用”(316099)。

摘　　要：从解决炼油厂加热炉空气预热器的低温露点腐蚀问题出发,分析讨论了耐腐蚀非金属材料(搪瓷、玻璃、氟塑料、石墨及陶瓷等)空气预热器的材料性能、结构形式、传热性能和工业应用效果.分析表明:石墨和陶瓷空气预热器具有优异的耐腐蚀性能和稳定的结构强度,可以在烟气酸露点以下温度安全使用.In order to solve the dew point corrosion problem in air preheater,performances were analyzed with regard to the material,structure,heat transfer and industrial application of preheater with nonmetal material(enamel coating,glass,fluoroplastics,graphite and ceramics,etc.).It is shown that preheaters made with graphite and ceramic have excellent corrosion resistance and stable structural strength,which can be used safely below acid dew point temperature of flue gas.

关 键 词：露点腐蚀 空气预热器 针孔腐蚀 非金属材料 

分 类 号：TE65[石油与天然气工程—油气加工工程] TQ051.5[化学工程]