GAS TURBINE BURNER AND FUEL AND AIR MIXING METHOD IN SWIRL AREA OF GAS TURBINE BURNER Russian patent published in 2011 - IPC F23D14/02 F23C7/00 F23R3/14 

FIELD: power industry.

SUBSTANCE: burner, namely gas turbine burner, includes at least one swirler having at least one inlet hole, at least one outlet air hole located downstream relative to inlet air hole and at least one air channel of swirler, which passes from the above one, at least one inlet air hole to the above one, at least one outlet air hole and restricted with walls of air channel of swirler, fuel injection system containing fuel injection hole, which are made at least in one wall of air channel of swirler so that fuel can be injected to air channel of swirler, and air injection system containing air injection holes made at least in one wall of air channel of swirler and located downstream relative to fuel injection holes air injection to air channel of swirler. Walls (20, 120) of air channel are formed at least partially with edges of swirler vanes (12) and air injection holes (28, 130, 132) are made in swirler vanes. Air injection system includes many air injection holes (28, 130, 132) for each air channel (14) of swirler; at that, injection holes are distributed at least along one wall (20, 120) of air channel (14) of swirler. Air injection system includes regulating mechanism to regulate the air supplied to distributed inlet air holes (28, 130, 132).

EFFECT: invention allows obtaining homogeneous fuel-air mixture.

8 cl, 6 dwg