W火焰锅炉低NO_(X)燃烧改造及数值模拟预测

W Flame Boiler Low NO_(x) Combustion Transformation and Numerical Simulation Predicted

对某600 MW超临界W火焰锅炉氮氧化物排放高的原因进行全面分析,提出相应低NO_(X)燃烧改造方案,并对不同改造方案通过全炉膛燃烧过程的热态数值模拟进行优化设计,模拟结果表明:通过增设燃尽风、更换新型低NO_(X)燃烧器等措施,能够在不影响锅炉效率的前提下,有效降低炉内NO_(X)的产生。数模预测结果与实际改造后的性能考核试验结果对比显示,主要监视指标误差均在10%以内。

Conduct of a 600 MW supercritical boiler design and the existing W flame run a comprehensive analysis of the status of the original proposed corresponding low NO_(X) combustion rehabilitation programs,and rehabilitation programs were full-hearth furnace hot combustion process simulation,carried out various programs optimized design,simulation results show that:through the creation of OFA,the replacement of new low NO_(X) burners and other measures,it is possible without compromising the efficiency of the boiler,furnace effectively reduce NOx generation.Modulus predicted results were compared with the actual performance test results after the transformation,the main monitoring indicators of error is less than 10%.