DRIVE GAS-TURBINE PLANT AT AIR DELIVERY TO COMBUSTION CHAMBER HOUSING THROUGH AIR DUCT SYSTEM Russian patent published in 2001 - IPC

FIELD: drive gas-turbine plants. SUBSTANCE: drive gas-turbine plant includes air manifold connected with air supply pipes, set of combustion chambers connected with burners on one side and with pre-nozzle diffusers on other side; burners are used for supply of fuel and diffusers are used for supply of combustion products to nozzle blades of turbine. Grate arranged inside air manifold is used for forming free space between grate and supply pipes and between grate and combustion chamber. Grate has openings for limiting delivery of smoothed flow of air to combustion chamber. Openings are made irregularly. Minimum concentration of openings is found in periphery of air supply pipes and maximum concentration is found in section of air manifold located at maximum distance from air supply pipes. EFFECT: reduced thermodynamic loads acting on structural members of gas turbine. 5 cl, 6 dwg