| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gas turbine combustor capable of damping high frequency combustion vibration while suppressing the reduction in the supply amount of compressed air for combustion. <P>SOLUTION: The gas turbine combustor includes: a combustor basket 4, through the inside of which combustion gas generated by the combustion of fuel injected from a nozzle flows; and a first resonance device 10 and a second resonance device 20 mounted on the exterior surface of the combustor basket 4. The second resonance device 20 is located on the downstream side of fuel gas flow at a lower position than the first resonance device 10, and damps high frequency combustion vibration more greatly than the first resonance device 10. The first resonance device 10 and the second resonance device 20 are acoustic liners which have housings 12 and 22, which are installed on the outer surface of the combustor basket 4. The resonance spaces 14 and 24 surrounded by the housings 12 and 22 as well as the outer surface of the combustor basket 4 communicate with the interior space of the combustor basket 4 through a plurality of acoustic holes 16 and 26 formed on the combustor basket 4. <P>COPYRIGHT: (C)2013,JPO&INPIT |
