超临界锅炉水冷壁高温腐蚀分析及预防措施  

The reason and protected measures for the high temperature corrosion on water cooled wall of super-critical boiler

作　　者：刘彦鹏[1] 余永生[1] 任磊[1] 陈剑[1] 冯建国[1] 

机构地区：[1]安徽省电力科学研究院,安徽合肥230022

出　　处：《安徽电力》2008年第3期62-66,共5页Anhui Electric Power

摘　　要：某600 MW前后墙对冲燃烧方式的超临界锅炉水冷壁发生了高温腐蚀,前后墙腐蚀较轻微,两侧墙腐蚀严重。通过对该锅炉在600 MW负荷和500 MW负荷下水冷壁贴壁处的烟气氧量和CO的含量进行测试,并对锅炉的历史运行数据进行了分析,认为入炉煤质变差和锅炉较长时间的高负荷、低氧量运行是导致水冷壁高温腐蚀的主要原因,并对锅炉的运行方式提出了建议。High temperature corrosion on water-cooled wall happened to a 600 MW super-critical boiler. The fore and behind wall corroded lightly,and the side walls corroded heavily. The content of O2 and CO near the wall were tested under the load of 600 MW and 500 MW. Combining the analysis results of the historical data,it is believed that bad coal and long-time high load operation with low oxygen content leads to the high temperature corrosion and suggestions are given.

关 键 词：600 MW 超临界 锅炉 水冷壁 高温腐蚀 

分 类 号：TK224.9[动力工程及工程热物理—动力机械及工程]