Gas turbine combustor

A gas turbine combustor comprising:na combustor basket in which combustion gas flows, the combustion gas being produced by combustion of fuel injected from at least one nozzle; anda plurality of acoustic liners each including a housing mounted on an outer surface of the combustor basket, the housings of the plurality of the acoustic liners being separate from each other so that each of the housings together with the outer surface of the combustor basket forms an individual resonance space for each of the acoustic liners,wherein each housing is mounted to an outer surface of a diverging portion of the combustor basket,wherein the plurality of the acoustic liners includes:a first acoustic liner disposed on an upstreammost side in terms of a flow direction of the combustion gas; anda second acoustic liner for damping combustion oscillation of a frequency higher than the first acoustic liner, the second acoustic liner being mounted on the outer surface of the combustor basket so as to be disposed on a downstream side from the first acoustic liner in a flow of the combustion gas,wherein the individual resonance space of each of the acoustic liners communicates with an interior space of the combustor basket via at least one acoustic hole formed through the combustor basket.

A gas turbine combustor comprising:na combustor basket in which combustion gas flows, the combustion gas being produced by combustion of fuel injected from at least one nozzle; anda first resonance device; anda second resonance device for damping combustion oscillation of a frequency higher than the first resonance device, the second resonance device being mounted on the outer surface of the combustor basket so as to be disposed on a downstream side from the first resonance device in a flow of the combustion gas,wherein the first resonance device and the second resonance device are acoustic liners each having a housing mounted to the outer surface of the combustor basket, andwherein a resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket,wherein the gas turbine combustor further comprising:a transition piece for introducing the combustion gas produced in the combustor basket to a turbine, the transition piece being arranged so that an upstream end of the transition piece overlaps an outer periphery of a downstream end of the combustor basket;a spring clip for connecting the upstream end of the transition piece and the downstream end of the combustor basket to each other by elastic force; anda baggy clip for pressing the spring clip toward the upstream end of the transition piece,wherein the second resonance device is housed in a space surrounded by the baggy clip and the outer surface of the downstream end of the combustor basket.

A gas turbine combustor comprising:na combustor basket in which combustion gas flows, the combustion gas being produced by combustion of fuel injected from at least one nozzle; anda first resonance device; anda second resonance device for damping combustion oscillation of a frequency higher than the first resonance device, the second resonance device being mounted on the outer surface of the combustor basket so as to be disposed on a downstream side from the first resonance device in a flow of the combustion gas,wherein the first resonance device and the second resonance device are acoustic liners each having a housing mounted to the outer surface of the combustor basket, andwherein a resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket,wherein a relationship of 0.05≦W2/D2≦0.3 is established where D2 is a diameter of the combustor basket at a mounting position of the second resonance device and W2 is a width of the resonance space of the second resonance device in a longitudinal direction of the combustor basket.

A gas turbine combustor comprising:na combustor basket in which combustion gas flows, the combustion gas being produced by combustion of fuel injected from at least one nozzle; anda first resonance device; anda second resonance device for damping combustion oscillation of a frequency higher than the first resonance device, the second resonance device being mounted on the outer surface of the combustor basket so as to be disposed on a downstream side from the first resonance device in a flow of the combustion gas,wherein the first resonance device and the second resonance device are acoustic liners each having a housing mounted to the outer surface of the combustor basket, andwherein a resonance space surrounded by the housing and the outer surface of the combustor basket communicates with an interior space of the combustor basket via a plurality of acoustic holes formed in the combustor basket,wherein a relationship of 0.005≦h2/d2≦0.02 is established where d2 is a diameter of the combustor basket at a mounting position of the second resonance device and h2 is a height of the resonance space of the second resonance device.