METHOD TO BURN PRELIMINARY PREPARED LEAN AIR-FUEL MIXTURE IN DOUBLE-CIRCUIT LOW-EMISSION BURNER WITH DIFFUSION STABILISING FLARE USED Russian patent published in 2015 - IPC F23D14/62 F23D14/78 

FIELD: machine building.

SUBSTANCE: regulation of pilot fuel consumption regardless of main fuel consumption provided with minimal emission of nitrogen oxides with regard to air temperature and temperature of lean AFM, limitation of pilot fuel feeding rate to the additional circulation zone of LB to maximum 5-10 m/s due to the selection of the total area of dosing outlet holes and further diffusion burning of pilot fuel in a "standby" flare of the additional circulation zone, usage of pilot fuel to cool a heat-stressed hollow cone and the outlet end of a hollow conical stabiliser, usage of a hollow conical stabiliser with the vertex angle of 30° as a bluff body.

EFFECT: invention allows for the increase of stable burning range of lean AFM, reliability and service life of LB, decrease of resistance of a conical stabiliser and emission of nitrogen oxides confirming the advantages of the proposed method over the prototype method.

5 cl, 7 dwg