BURNER Russian patent published in 2011 - IPC F23D17/00 

FIELD: power industry.

SUBSTANCE: burner includes tubular body 1 inside which there is air channel 2 in which central tubular element 3 is located coaxially to its longitudinal axis; at the outlet of the above element there is fuel atomiser 4; guide vanes 5 of axial swirler are located along the periphery of central tubular element 3; around axial swirler in air channel 2 there are installed supply tubes of gas at least in two flows one of which is directed along longitudinal symmetry axis 7 of air channel 2, and the other ones are directed at an angle to the above axis 7; tubular guide element 8 is installed between central tubular element 3 and gas supply tubes coaxially to longitudinal axis 7 of air channel 2; guide vanes 5 of axial swirler are installed inside tubular guide element 8 at its outlet to outlet holes of gas supply tubes; at that, ratio of square of equivalent diameter D of air channel to square of equivalent diameter d of tubular guide element 8 D²/d² is within 1.65-10.

EFFECT: reducing content of nitrogen oxides in combustion products with simultaneous increase of gas combustion quality and operating reliability.

4 dwg