COMBINED CYCLE POWER PLANT AND METHOD FOR OPERATING SUCH A COMBINED CYCLE POWER PLANT
    1.
    发明申请
    COMBINED CYCLE POWER PLANT AND METHOD FOR OPERATING SUCH A COMBINED CYCLE POWER PLANT 审中-公开
    组合循环发电厂和操作这样一个组合循环发电厂的方法

    公开(公告)号:US20150007577A1

    公开(公告)日:2015-01-08

    申请号:US14494860

    申请日:2014-09-24

    IPC分类号: F01K23/08 F02C7/141

    摘要: The invention relates to a combined cycle power plant including a gas turbine the exhaust gas outlet of which is connected to a heat recovery steam generator, which is part of a water/steam cycle, whereby, for having a large power reserve and at the same time a higher design performance when operated at base load, the gas turbine is designed with a steam injection capability for power augmentation. For having a large power reserve at improved and optimized design performance when the plant is being operated at base load, the gas turbine includes at least one combustor, and a compressor for providing cooling air for that gas turbine, which is extracted from the compressor and cooled down in at least one cooling air cooler. The steam for steam injection is generated in said cooling air cooler, whereby said steam is injected into an air side inlet or outlet of said cooling air cooler and/or directly into said at least one combustor. The heat recovery steam generator is equipped with a supplementary firing, which is at least a single stage supplementary firing to increase the high pressure steam production and providing augmentation power as power reserve to a grid when required.

    摘要翻译: 本发明涉及一种联合循环发电厂,其包括燃气轮机,其排气出口连接到作为水/蒸汽循环的一部分的热回收蒸汽发生器,由此,为了具有大的动力储备和相同 在基础负荷下运行时,设计性能更高,燃气轮机设计具有用于功率增加的蒸汽喷射能力。 为了在工厂在基本负载下运行时具有改进和优化的设计性能的大功率储备,燃气轮机包括至少一个燃烧器和用于为从该压缩机抽出的燃气轮机提供冷却空气的压缩机,以及 在至少一个冷却空气冷却器中冷却。 用于蒸汽喷射的蒸汽在所述冷却空气冷却器中产生,由此所述蒸汽被注入到所述冷却空气冷却器的空气侧入口或出口中和/或直接进入所述至少一个燃烧器。 热回收蒸汽发生器配备有辅助点火,至少是单级辅助点火,以增加高压蒸汽产量,并在需要时向电网提供增压功率作为电网。