W flame boiler of turbulent burner with inner direct flow and outer turbulent flow ammonia spraying device
A technology of swirl burner and pulverized coal burner, which is applied in the field of NOx emission reduction of swirl burner W flame boiler and W flame boiler. degree, the effect of widening the temperature window
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specific Embodiment approach 1
[0026] Specific implementation mode one: as Figure 1~2 As shown, the swirl burner W flame boiler with the inner straight outer swirl ammonia injection device in this embodiment includes an upper furnace 1, a lower furnace 2, a front furnace arch 3, a rear furnace arch 4 and a plurality of offset swirl burners. Stream pulverized coal burner 5, a plurality of offset swirl pulverized coal burners 5 are evenly and symmetrically arranged on the front furnace arch 3 and the rear furnace arch 4, and the W flame boiler also includes a plurality of primary ammonia injection devices 6, A plurality of secondary ammonia injection devices 7, a plurality of burn-off air nozzles 8, a plurality of exhaust air nozzles 9 and a plurality of classified air nozzles 10; On the side wall of the rear furnace arch 4, the first-stage ammonia injection device 6 and the second-stage ammonia injection device 7 are symmetrically and evenly arranged on the front wall 11 and the rear wall 12 of the upper fu...
specific Embodiment approach 2
[0027] Specific implementation mode two: as figure 1 As shown, in this embodiment, the first-stage ammonia injection device 6 and the second-stage ammonia injection device 7 are both arranged downwardly and swing up and down. Such setting is used to change the angle of airflow incidence. Other components and connections are the same as those in the first embodiment.
specific Embodiment approach 3
[0028] Specific implementation mode three: as figure 1 As shown, the angle α formed between the centerline of the first-stage ammonia injection device 6 and the horizontal plane in this embodiment ranges from 30° to 60°. This design is used to change the angle of wind inflow. Other compositions and connections are the same as those in Embodiment 1 or 2.
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