| 摘要 |
The invention relates to a device in a power plant comprising a combustion chamber for combustion of fuel at overpressure, a turbine (11) driven by combustion gases generated in the combustion chamber, a compressor (12) driven by the turbine for compression of combustion air, and a gas conduit (15) for transferring combustion gases from the combustion chamber to the turbine. The gas turbine drives the generator (13). The device according to the invention includes at least one start-up combustor (19). The generator (13) can be switched to motor operation for rotation of the compressor (12) upon start-up, whereby the compressor supplies combustion air to the start-up combustor(s). Fuel, for example oil, is transferred to the start-up combustor (19) which in turn delivers gases to the turbine (11), the turbine power thus being supplied to the compressor (12). |
