BURNER, IN PARTICULAR FOR GAS TURBINES Russian patent published in 2014 - IPC F23R3/36 F23D17/00 

FIELD: heating.

SUBSTANCE: burner is provided with a central assembly of the fuel supply, as well as with an annular air channel covering the central assembly of the fuel supply, for supplying combustion air and with the vortex vanes located in the annular air channel. The vortex vanes have the first fuel atomisers for injecting the substantially gaseous fuel into the combustion air, and the second fuel atomisers for injecting the substantially gaseous fuel into the combustion air. The first fuel atomisers are fed from a fuel-distribution input in the assembly of the fuel supply. The second fuel atomisers are fed from the gas-distribution channel in the assembly of the fuel supply. The burner in operation has one direction of the fuel flow. The fuel-distribution input comprises a plurality of feeding tubes. Each feeding tube is connected downstream to the first fuel atomisers of the corresponding vortex vane, and upstream - to an annular nozzle. The annular nozzle is letdown when viewed in the flow direction, to the fuel-distribution channel and is put on the assembly of the fuel supply, so that the spatial separation between the annular nozzle and the fuel-distribution channel leads to lower stresses in the assembly of the fuel supply.

EFFECT: invention is directed to increasing the duration of the burner operation and to the improvement of the gas turbine.

7 cl, 5 dwg