| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine plant and a starting method therefor, the turbine plant having an appropriate axial arrangement of devices such as a gas discharge compressor and the like, a good operability, and a high efficiency and low in construction cost. SOLUTION: The turbine plant is organized as follows. Fuel is burned in a burner 1 with oxygen used as an oxidizing agent. High-temperature gas thereby generated is used to drive high-temperature turbines 2a, 2b. Discharge gas from the high- temperature turbines 2a, 2b are thermally recovered by a heat exchanger 3. Discharge gas from the heat exchanger 3 is compressed by compressors 4a, 4b and then delivered to the burner 1 for recirculation. Meanwhile, the discharge gas from the heat exchanger 3 is used to drive a low-pressure turbine 5. Steam contained in the discharge gas discharged from the low-pressure turbine 5 is condensed by a condenser 6. Condensate is then introduced to the heat exchanger 3. The condensate is then heated and vaporized by using the discharge gas from the high-temperature turbine 2b as a heat source. Resultant steam is used to drive a high-pressure turbine 7. The discharge gas left uncondensed by the condenser 6 is compressed by a gas discharge compressor 8 before being discharged. The turbine plant is characterized in that the gas discharge compressor 8 is disposed coaxially with the low-pressure turbine 5. COPYRIGHT: (C)2004,JPO
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