| 摘要 |
This invention is intended to maintain combustor reliability. The invention provides a combustor that includes: a fueling nozzle that jets a fuel towards a combustion chamber located downstream; and a flat-plate-shaped air blowhole plate facing the upstream side of the combustion chamber and disposed between the fueling nozzle and the combustion chamber, the air blowhole plate having a plurality of air blowholes arranged at equal intervals in a circumferential direction relative to the center of the air blowhole plate, in order to jet towards the combustion chamber a flow of fuel and a flow of air that is formed at the outer circumferential side of the fuel flow; wherein, in a phase that the fuel flow and the air flow reach an inner wall of the combustion chamber after being jetted from each of a plurality of independently operable burners and from part of the circumferentially arrayed air blowholes, or in a phase that the fuel flow and the air flow interfere with two of the adjacent burners, a spacing between air blowholes that are the part of the circumferentially arrayed air blowholes, is greater than in other phases of the air blowholes. According to the invention, combustor reliability can be maintained.
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