机械与电子2025，Vol.43Issue(11)：28-32,39,6.
垃圾焚烧锅炉省煤器管的腐蚀泄漏失效分析
Failure Analysis of Corrosion and Leakage of Economizer Tubes in Waste Incineration Boilers
摘要
Abstract
Through chemical composition analysis,microstructure observation,scanning electron mi-croscopy analysis,energy spectrum analysis and other characterization methods at different positions of the failed pipe section and weld seam,combined with on-site process parameters,the cause of leakage of the heated surface pipe was analyzed.It was found that the main reason for the malfunction of the economizer tubes in the garbage incineration boiler was due to the substandard quality of the economizer tube welds.Oxygen corrosion occurred in the fusion zone of the welds,forming circular corrosion grooves,which led to leakage during operation.When there is a leak,water or water vapor sprayed from the defective area will splash onto the surface of adjacent pipelines,causing a local temperature drop in these areas and increasing the water vapor content,ultimately inducing localized low-temperature corrosion.关键词
锅炉省煤器管/氧腐蚀/环状的腐蚀凹槽/低温腐蚀Key words
boiler economizer tube/oxygen corrosion/circular corrosion groove/low-temperature cor-rosion分类
能源科技引用本文复制引用
朱斌海,李胜雷,廉杰,李婧怡,宁亮亮,吴士平..垃圾焚烧锅炉省煤器管的腐蚀泄漏失效分析[J].机械与电子,2025,43(11):28-32,39,6.基金项目
黑龙江省省属本科高校优秀青年教师基础研究支持计划资助(YQJH2023270) （YQJH2023270）
