Systems and methods for improving the efficiency of a combined cycle power plant
    1.
    发明授权
    Systems and methods for improving the efficiency of a combined cycle power plant 有权
    提高联合循环发电厂效率的系统和方法

    公开(公告)号:US08505309B2

    公开(公告)日:2013-08-13

    申请号:US13159657

    申请日:2011-06-14

    IPC分类号: F02C6/00

    摘要: Systems and methods for improving the efficiency of a power generation facility utilize heat energy to preheat inlet-air that is supplied to the compressor of a turbine or to preheat fuel that is burned in the turbine. The heat energy used to preheat the inlet-air can be drawn from a heat recovery steam generator (HRSG) that produces steam using at least part of the exhaust gas of the turbine. The heat energy can be obtained from one or more predetermined points within the HRSG, such as a feed water line exiting a drum of the HRSG or a feed line connecting an economizer of the HRSG to a drum of the HRSG. The fluid drawn from the predetermined point passes through a heat exchanger or a preheater to remove the heat energy used for preheating. The fluid is then returned to the HRSG immediately downstream from the point from which it was drawn.

    摘要翻译: 用于提高发电设施的效率的系统和方法利用热能来预热供应到涡轮的压缩机的入口空气或预热在涡轮机中燃烧的燃料。 用于预热入口空气的热能可以从使用涡轮机的至少一部分废气产生蒸汽的热回收蒸汽发生器(HRSG)中抽出。 热能可以从HRSG内的一个或多个预定点获得,例如从HRSG的滚筒离开的给水管线或将HRSG的节能器连接到HRSG的滚筒的进料管线。 从预定点抽出的流体通过热交换器或预热器以去除用于预热的热能。 然后将流体立即从其被抽出的点的下游返回到HRSG。