Combustor and a fuel suppy method for the combustor

摘要

The purpose of the invention is to keep in the burner of flame holding, even if being further decreased using coaxial jet NOx. ;Burner (100) includes chamber (1) mixing and burning, fuel and air; Spiracular plate (50) is arranged in the wall surface (1) of the room, and spiracular plate (50) includes that multiple airports (51) injection coaxial jet fuel and air stream for being arranged concentrically of multiple rows enters chamber (1); Near one first fuel nozzle (42) and the second fuel nozzle teasehole (43), it is provided with and injects fuel into stomata row inner circumferential side, it is structuring that first fuel nozzle (42), which constructs come the nozzle (43) of the turbulent flow and fuel that inhibit surrounding air, to promote the turbulent flow of surrounding air. ;According to aspects of the present invention, it can keep good flame holding that can even reduce so far in the burner of NOx and use coaxial jet.