Micro oil mass ignition gradual combustor
A staged combustion and burner technology, which is applied in the direction of burners, burners burning powder fuel, and combustion methods, etc., can solve the problems of poor adaptability of different coal types, achieve enhanced ignition and stable combustion effects, clear concept, and reasonable design Effect
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Embodiment 1
[0027] refer to figure 1 , figure 2 , image 3 and Figure 4 , a kind of minute oil quantity ignition staged burner of the present invention, comprises minute oil quantity ignition device 1 and burner 2. Two sets of guide vane sets 3 are arranged in the burner 2, the guide vane sets 3 include four guide vanes 5, there are gaps between the guide vanes 5, the guide vanes are arc-shaped, the radius of curvature is the same as the radius of curvature of the burner nozzle Similarly, the center of arc of the guide vane 5 is inside the burner, and the guide vane 5 is connected with a movable guide rod 4 . The guide vane set 3 and the combustor 2 are coaxially arranged. The movable guide rod 4 radially penetrates into the burner 2 and can drive the guide vanes 5 to move radially.
[0028] Before ignition, such as image 3 As shown, the guide vanes 5 are retracted and attached to the inner wall of the burner. When the boiler is fired, such as figure 2 As shown, the movable gu...
Embodiment 2
[0032] refer to figure 1 , Figure 4 , Figure 5 and Image 6 , the difference between this embodiment and Embodiment 1 is that in this embodiment, the guide vane group 3 includes 6 pulverized coal air flow guide vanes 5, the radius of curvature of the guide vanes 5 is the same as that of the burner nozzle, and the guide vanes 5 arc The center of the surface is inside the burner, and each pulverized coal flow guide vane 5 is inserted into the burner 2 in a circular arc reciprocating motion with a certain center point 6 as the center of the circle (the center point 6 is the rotation center of the blade 5). The vane group 3 can divide the pulverized coal flow into two parts (or approximately into two parts). The small amount of oil ignition device 1 is axially inserted into the space surrounded by the guide vane group 3, ignites the pulverized coal airflow entering the space, and forms a new, stable, higher thermal power at the end outlet of the guide vane group 3. An igniti...
Embodiment 3
[0036] refer to Figure 7 , Figure 8 and Figure 9 , the difference between this embodiment and Embodiment 1 is that in this embodiment, the guide vane group 3 includes 5 pulverized coal flow guide vanes 5, the radius of curvature of the guide vanes 5 is the same as that of the burner nozzle, and the guide vanes 5 arc The center of the circle of the surface is outside the burner, the movable guide rod 4 pushes the guide vane group 3 into the burner axially from the burner, and the guide vane group 3 can also be axially withdrawn from the burner through the movable guide rod 4, that is, the guide vane 3 from axial ( Figure 9 Insert or withdraw the burner in the vertical direction of the paper. The vane group 3 can divide the pulverized coal flow into two parts (or approximately into two parts). The micro-oil ignition device 1 is axially inserted into the space surrounded by the vane set 3, ignites the pulverized coal airflow entering the space, and forms a new, stable ign...
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