锅炉热管常见早期失效形式分析  

Analysis of the Common Early Failure Forms of Boiler Heat Tube

作　　者：郭赞扬[1] 金大华 GUO Zan-yang JIN Da-hua(Xinyu Iron ＆ Steel Group Co. , Ltd. , Xinyu Jiangxi 338001 ,China)

机构地区：[1]新余钢铁集团有限公司,江西新余338001

出　　处：《热处理技术与装备》2017年第4期53-55,共3页Heat Treatment Technology and Equipment

摘　　要：分析了水冷壁管、过热器管、再热器管、省煤器管、空气预热器管等锅炉热管的工作条件和主要失效形式。介绍了高温蠕变、短时过热、高温烟气腐蚀、飞灰磨损、低温腐蚀等热管失效形式的宏观形貌特征及失效机理。In this paper,the working conditions and main failure forms of boiler heat tube,such as water wall tube,superheater tube,reheater tube,economizer and air preheater tube etc.are analyzed.The macroscopic morphology features and the failure mechanism of high temperature creep,short-term overheating,high temperature smoke corrosion,fly ash abrasion,low temperature corrosion etc.are introduced

关 键 词：锅炉热管 早期失效 宏观形貌特征 失效机理 

分 类 号：TK228[动力工程及工程热物理—动力机械及工程]