Burner, combustor and remodeling method for burner

摘要

Disclosed herein is a combustor with a burner adapted to maintain combustion stability while suppressing a quantitative increase of fueling nozzles due to enlarging, and a remodeling method for the burner. A burner includes: an air hole member 31 with a plurality of air holes 34 and 35, each of which is provided at an upstream side of combustion gases generated by a combustion chamber 1; a first fueling nozzle 33 for jetting a fuel in a direction crossing a central axis of the burner towards at least two air holes 35; a plurality of second fueling nozzles 32 each provided for one of the remaining air holes 34 and formed for jetting the fuel in a direction routed along the burner axis towards the corresponding air hole 34; a fuel header 30 for distributing the fuel to the first fueling nozzle 33 and each of the second fueling nozzles 32; and a fuel header storage unit 70 that shrouds the fuel header 30, the first fueling nozzle 33, and second fueling nozzle 32, and having an air inflow hole 71.