| 摘要 |
PURPOSE:To control the age deterioration of a metallic material of a liner, by cooling the surface metal of the liner by sending in discharge air of a compressor between the liner of the combustor of a regenerative cycle gas turbine and an annular ring provided on the outside of the liner. CONSTITUTION:A part of discharge air 3 of a compressor flows in through an annular opening part of a transition piece 14 side to be constituted with the liner 13 of a combustor and a ring 24, flows along an external wall of the liner 13 of the combustor, flows in the inside of the liner 13 of the combustor through a louver 19 and cools its surface metal. In order words, as the liner 13 of the combustor is cooled by the discharge air 3 of the compressor, age deterioration of the liner 13 becomes completely identical with that of a simple cycle gas turbine, through which an improvement in reliability can be contrived and reduction in maintenance cost can be materialized. |
