BURNER DESIGN Russian patent published in 2012 - IPC F23D1/00 F23L1/00 F23N3/06 

FIELD: power industry.

SUBSTANCE: design of the boiler burner in which the wind box air line providing the combustion air supply to combustion chamber has bent section immediately before the connection to combustion chamber and one or several guide vanes located in bent section of air line for separation of the above air line into several air lines, in which there installed is the valve controlling the flow non-uniformity, providing the change of ratio of flow resistances of several air lines; at that, valve controlling the flow non-uniformity is installed on that air line of several air lines obtained by separation with guide vane which is located on external peripheral side of air line of wind box, downstream relative to the valve controlling the combustion air flow. In each of airlines there located is the sensor determining combustion air flow parameters near fuel pipeline, which is located in wind box; at that, flow resistance is controlled depending on values determined with the sensor. When using the fuel with high slag formation or corrosive fuel, flow resistance control is performed so that flow resistance can be reduced in air line near combustion chamber wall surface.

EFFECT: invention allows reducing NO_x and carbon oxide emissions.

3 cl, 4 dwg