COMBUSTOR AND GAS TURBINE

摘要

This combustor is provided with: inner cylinders (12) through wich air (A) is fed from outside; a plurality of first nozzles (14) that is annularly disposed along the inner periphery of the inner cylinders (12), and feed a premixed gas (M) of air (A) and fuel (f) to the inside of the inner cylinders (12); and tail pipes (15) having proximal ends (15b) to which the inner cylinders (12) are connected, said tail pipes (15) forming a flame front (F) that broadens to the outer peripheral side toward the distal side in the axial direction hough the combustion 4 premixed gas (M) that has to fed from the first nozzles (14). Each first nozzle (14) changes the fuel concentration around the central axis of said first nozzle (14) and supplies the premixed gas (M) in such a manner that the flame front (F) attains a uniform temperature in the axial direction.