对冲燃烧布置锅炉水冷壁高温腐蚀问题的研究

The Corrosion of Water Wall in Wall Fired Boiler

分析了对冲布置锅炉水冷壁高温腐蚀的原因，提出了用贴壁风来解决对冲布置锅炉水冷壁高温腐蚀的办法，并用计算机对３００ＭＷ机组前后墙旋流燃烧对冲锅炉燃烧过程进行了不同工况下的数值模拟，包括改变一次风速度、二次风内外风量比例、内二次风旋流强度、贴壁风的位置和速度等。

Analyzing the water wall corrosion in wall fired boiler, it is noted that using the air running along the wall can prevent the water wall corroding. The computer code is used for the simulation of the combustion processes in 300MW utility wall fired boiler under different conditions. The result showes that this method is suitable to resolve the corrosion in the wall fired boiler.