利用FLUENT软件对某电厂600 MW负荷下不同燃尽风率及燃尽风旋转角度下的工况进行了数值计算。结果表明,增大燃尽风率,可以抑制NOx的生成,但会增加未燃尽损失。燃尽风旋转角度,对于炉膛出口烟温、NOx生成有一定的影响但影响较小,对煤粉燃尽率影响较大,当角度过大时这种影响减小。 FLUENT software is used to calculate the operating conditions of different burnout wind rates and burnout wind rotation angles of a power plant under 600 MW load. The results show that increasing the burn-off wind rate can suppress the formation of NOx but increase the unburned loss. The turning angle of the burnt-out wind has certain influence on the flue gas temperature and NOx production at the exit of the furnace, but has a small influence on the burn-out rate of coal, which is greatly reduced when the angle is too large.