摘要
大同煤矿集团公司煤峪口矿副井2#锅炉水冷壁管泄漏,主要是由于燃料燃烧产生的二氧化硫和三氧化硫与烟气中的水蒸汽化合,生成亚硫酸和硫酸蒸汽,这些酸性蒸汽在达到或低于露点温度条件下,凝结成亚硫酸和稀硫酸,并附着在水冷壁管上面,在酸性介质长时间的作用下,使管壁发生化学腐蚀而导致泄漏。对此,笔者提出了有效的防范措施。
The paper analyses the cause of surface corrosion of water-cooling wall tube boiler of Meiyukou Mine, and discovers that it is due to sulfurous acid steam and sulfuric acid of combining water steam in fume with sulfur dioxide and sulfur trioxide. When the temperature of these acidic steam reaches the point temperature, they condense sulfurous acid and dilute sulfuric acid, adhere on the water cooling wall tube, under the long-term action of acidic medium, and make the tube wall bring chemistry corrosion and cause leaking out. The writer puts forward effective solution.
出处
《同煤科技》
2004年第2期19-20,共2页
Datong Coal Science & Technology
关键词
蒸汽动力工程
蒸汽锅炉
水冷壁管
腐蚀
steam dynamic project
steam boiler
water-cooling wall tube
corrosion
