Main burner equipment with outer rotational flow and inner direct flow
A main burner and external swirl technology, applied in burners, burners burning powder fuel, combustion types, etc., can solve the problem of unfavorable pulverized coal flow ignition and stable combustion, reduce jet entrainment of high temperature flue gas, Weakening of the nozzle jet rigidity and other problems, to ensure the stability and economy, to ensure the fullness of the furnace flame, and to improve the ignition conditions.
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[0026] Fig. 1 is the structure of the guide vane of the burner of the present invention on the duct, which is composed of the main primary air pulverized coal flow pipe 2, the duct 3 and the guide vane 1, and the height H of the vane in the duct.
[0027] Fig. 2 is the structure of the guide vane of the burner of the present invention without a duct, which is composed of the main primary air pulverized coal flow pipe 2 and the guide vane 1, and the height H of the vane in the duct.
[0028] Figure 3 is a schematic view of the angle between the guide vane and the axis of the main primary air pulverized coal flow pipe; where the guide vane 1, the main primary air pulverized coal flow pipe axis 5, the guide vane and the main primary air pulverized coal flow pipe axis clamp Corner 6, exit 7.
[0029] Fig. 4 is a perspective view of the structure of the present invention with a guide vane to the outlet distance S of the main primary air pulverized coal flow pipe when it is greater ...
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