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提出并采用空度方法和修正的非均分QUICK格式对盘山 60 0MW切向燃烧锅炉在不同二次风反切工况下的炉内流场进行了数值模拟 ,并将计算结果与冷模试验进行了比较 .通过详细研究炉内速度场、燃烧器区压力场、实际切圆直径、气流角动量流率和水平烟道速度分布指数等参数 ,比较了不同二次风反切工况对烟气偏差的影响效果 .最后提出了合理的反切方式 .
The space flow method and the modified non-uniform QUICK scheme are proposed and used to simulate the flow field in a 60MW tangentially fired boiler with different secondary wind under different back-cutting conditions. The calculation results are compared with those of the cold model test The parameters of the velocity field in the furnace, the pressure field in the burner zone, the actual tangent circle diameter, the angular momentum flow rate of the air flow and the horizontal flue velocity distribution index were compared to compare the different flue gas deviation The effect of the effect of the final proposed a reasonable way of anti-cut.