燃煤电站烟气热交换器腐蚀特性的实验研究  

Experimental Study on Corrosion Characteristics of Gas-gas Heater at Coal-fired Power Station

作　　者：施雪[1] 张锦红[2] 吴江[2] 杨金戈[2] 李灿[2] 胡程镇[2] 杨发云[3] 刘仕君[3] 

机构地区：[1]上海电力学院产业管理办公室,上海200090 [2]上海电力学院能源与机械工程学院,上海200090 [3]宝山钢铁股份有限公司,上海201900

出　　处：《华东电力》2013年第10期2191-2194,共4页East China Electric Power

基　　金：国家自然科学基金项目(50806041);上海市科技创新行动计划项目(11dz1203402;12dz1201702);上海市联盟计划项目(LM201251);上海市教委重点学科项目(J51304)~~

摘　　要：运用极化曲线法实验和控制变量法,对比分析了燃煤电站烟气换热器GGH换热面常用材料的耐腐蚀性,分析得知,温度的升高对GGH金属换热面腐蚀有较明显的加剧作用,但搪瓷钢相比其他钢种材料受温度变化的影响程度较小,其抗腐蚀性能尤为突出,另外,表面镀搪瓷对钢材抗腐蚀能力的提高十分显著。同时,对腐蚀件的SEM-EDS进行了测试,对腐蚀机理进行了分析。In this paper, the corrosion resistance characteristics of the commonly-used materials in the gas-gas beater （GGH） at coal-fired power station is comparatively analyzed through polarization curve experiment and control variable method. The results show that the corrosion resistance of steel used as the heat transfer surface in the GGH would be weaken with the temperature rising, but enamelled steel is more stable than other steels with little change with the temperature change. Therefore, the corrosion resistance of enamelled steel is strikingly better, and it is very helpful to improve the corrosion resistance of steel by plating enamel on its surface. Through the SEM-EDS test, the corrosion characteristics and its mechanism are analyzed.

关 键 词：烟气换热器 腐蚀 极化曲线 搪瓷 

分 类 号：TM621.8[电气工程—电力系统及自动化]