就多只旋流煤粉燃烧器在一台 2 0 5 t/ h锅炉炉内的最佳布置方式进行了冷态模化试验研究 ,找出了锅炉原旋流燃烧器无法在较大负荷下稳定运行的原因 ,确定了合理的燃烧器布置方式。将原锅炉上旋流燃烧器改为径向浓淡旋流煤粉燃烧器 ,并采用合理的布置方式后 ,炉内的冷态试验与试验台的结果一致 ,热态运行取得了良好的效果 ,锅炉燃烧效率达到 98.4% ,无助燃油低负荷率为 6 0 % In this paper, a cold modal test was carried out on the optimal arrangement of multiple cyclone pulverized coal burners in a 205 t / h boiler furnace to find out that the boiler primary vortex burner can not be operated under a large load The reason of stable operation has determined the reasonable arrangement of burner. After changing the swirling burner on the original boiler to radial thickening and swirling pulverized coal burner and using the reasonable arrangement, the cold test in the furnace is consistent with that of the test bench, and the hot operation achieved good results. Boiler combustion efficiency of 98.4%, fuel-efficient low load rate of 60%