| 摘要 |
In a cooling structure for a recovery-type air-cooled gas turbine combustor (30) having a recovery-type air-cooling structure that bleeds, upstream of the combustor (30), and pressurizes compressed air supplied from a compressor, that uses the bled and pressurized air to cool a wall (40), and that recovers and reuses the bled and pressurized air as combustion air for burning fuel in the combustor (30) together with a main flow of the compressed air, wall cooling in which cooling air is supplied to cooling air passages (41) formed in the wall (40) of the combustor (30) to perform cooling involves a downstream wall region, closer to a turbine, that is cooled using the bled and pressurized air as the cooling air and an upstream wall region, closer to a burner, that is cooled using, as the cooling air, bled compressed air bled from a main flow of the compressed air through a housing inner space. |
