循环流化床锅炉水冷壁鳍片焊缝裂纹原因分析及治理  

Cause analysis and Treatment of Weld Crack of Water Wall fin of Circulating FluidizedBbed Boiler

作　　者：李鹏 吴奇 李文彬 LI Peng;WU Qi;LI Wen-bin(Power China Hebei Engineering Co.,Ltd.Shijiazhuang 050021,China;State Grid Hebei Electric Power Co.,Ltd.Research Institute,Shijiazhuan 050021,China;Hebei Large-scale Power Plant Turbine&Boiler Installation Technology Innovation Center,Shijiazhuang 050021,China)

机构地区：[1]中国电建集团河北工程有限公司,河北石家庄050021 [2]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [3]河北省大型电站机炉安装技术创新中心,河北石家庄050021

出　　处：《全面腐蚀控制》2025年第1期125-129,共5页Total Corrosion Control

摘　　要：本文通过对循环流化床锅炉水冷壁鳍片焊缝裂纹的原因进行系统分析,发现裂纹的产生主要与焊接工艺不完善、材料特性差异、运行工况波动等因素密切相关。针对这些原因,本文提出了一系列综合治理措施,有效控制了裂纹的扩展,提升了水冷壁的整体稳定性和安全性。不仅为解决当前锅炉水冷壁鳍片焊缝裂纹问题提供了科学依据和技术支持,也为今后类似问题的预防和治理积累了宝贵经验。Based on the systematic analysis of the causes of cracks in the water wall fins of circulating fluidized bed boilers,it is found that the cracks are closely related to factors such as imperfect welding technology,different material characteristics and fluctuation of operating conditions.In view of these reasons,this paper puts forward a series of comprehensive treatment measures,which effectively control the crack propagation and improve the overall stability and safety of the water wall.It not only provides scientific basis and technical support for solving the weld crack problem of boiler water wall fin at present,but also accumulates valuable experience for the prevention and treatment of similar problems in the future.

关 键 词：水冷壁鳍片 焊缝裂纹 治理方案 焊接工艺 

分 类 号：TE872[石油与天然气工程—油气储运工程]