COMBUSTION CHAMBER OF GAS TURBINE UNIT WITH COMBUSTION IN COUNTERCURRENT SWIRLING FLOW Russian patent published in 2023 - IPC F23R3/28 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to devices for the preparation and combustion of multicomponent fuel mixtures in the combustion chambers of gas turbine power plants in a wide range of operating conditions. The combustion chamber of a gas turbine unit with combustion in a countercurrent swirling flow comprises an inlet, an annular cavity, an internal and external combustion chamber housing, an upper and lower flame tube shell, a front wall of the combustion chamber, pre-chambers, swirling devices, and spark plugs. It comprises pre-chambers with a flame stabilization area; in the pre-chambers with a flame stabilization area, to ensure the stability of the physico-chemical reaction, there is a torus area of the axial-radial curved end wall; in the front wall of the flame tube there is a cooling deflector with an irregular system of channels. The combustion chamber comprises two independent distributed fuel supply systems.

EFFECT: no burnout of the structural elements of the antechambers, reduced total pressure loss coefficient in the antechambers, expanded gas-dynamic range of stability of the physico-chemical reaction, expanded limits of stability of the physico-chemical reaction in terms of the ratio of mass fractions of fuel components and oxidizer.

2 cl, 4 dwg