Title:
COMBUSTOR FOR GAS TURBINE, AND GAS TURBINE
Document Type and Number:
Japanese Patent JP2016109307
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a combustor for a gas turbine, and the gas turbine capable of reducing a risk of backfire of a reheating burner, in the combustor of the gas turbine including the reheating burner injecting a lean pre-mixed air-fuel mixture prepared by mixing combustion air, a hydrocarbon-based first fuel, and hydrogen-based second fuel in advance in a downstream-side region of a combustion chamber.SOLUTION: A fuel injection nozzle is composed of a first fuel injection nozzle 362 injecting a hydrocarbon-based first fuel, and a second fuel injection nozzle 364 injecting a hydrogen-based second fuel, and at least one first and second fuel injection nozzles 362, 364 are projected into a connection pipe 70 while intersecting a central shaft. Peripheral walls of the first and second fuel injection nozzles 362, 364 are provided with a plurality of fuel injection holes 363, 365 at prescribed pitches in an axial direction, and the fuel injection hole is not formed on peripheral walls of the fuel injection nozzles where the first and second fuel injection nozzles 362, 364 are overlapped on a plane orthogonal to a flowing direction of compressed air 200 circulated in the connection pipe 70.SELECTED DRAWING: Figure 3
Inventors:
HIRANO TAKASHI
UTO TAKAHIRO
ODA TAKEO
NONAKA YOSHIHARU
UTO TAKAHIRO
ODA TAKEO
NONAKA YOSHIHARU
Application Number:
JP2014243777A
Publication Date:
June 20, 2016
Filing Date:
December 02, 2014
Export Citation:
Assignee:
KAWASAKI HEAVY IND LTD
International Classes:
F23R3/36; F02C3/28; F02C6/00; F02C7/22; F02C9/40; F23R3/06
Attorney, Agent or Firm:
Takuji Yamada
Mitsuo Tanaka
Mitsuo Tanaka
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