Steam cooled system in combined cycle power plant
    1.
    发明授权
    Steam cooled system in combined cycle power plant 有权
    联合循环发电厂蒸汽冷却系统

    公开(公告)号:US06324829B1

    公开(公告)日:2001-12-04

    申请号:US09237845

    申请日:1999-01-27

    IPC分类号: F02C600

    摘要: A gas turbine steam cooled system has a high temperature portion 8 outlet steam temperature maintained to a predetermined value without a cooling steam pressure becoming lower than the pressure in the gas turbine cylinder. Steam coming from an intermediate pressure superheater 10 of a waste heat recovery boiler 2 is led into the high temperature portion 8 of the gas turbine for cooling thereof. The temperature of the cooling steam at the outlet of the high temperature portion 8 is detected by a high temperature portion outlet steam temperature detector 15, and a signal thereof is sent a lower value selector 19 via a temperature controller 11. Pressure in the gas turbine cylinder is detected by a gas turbine cylinder pressure detector 17, and pressure of the cooling steam at the high temperature portion 8 outlet is detected by a high temperature portion outlet steam pressure detector 16. A differential signal thereof is sent to a pressure controller 18. Signals from the temperature controller 11 and the pressure controller 18 are inputted into the lower selector 19, and temperature control valve 12 is controlled by the lower value thereof to be opened and closed.

    摘要翻译: 燃气轮机蒸汽冷却系统具有保持预定值的高温部分8出口蒸汽温度,而冷却蒸汽压力变得低于燃气轮机气缸中的压力。 来自废热回收锅炉2的中压过热器10的蒸汽被引入燃气轮机的高温部8,以进行冷却。 高温部分8出口处的冷却蒸汽的温度由高温部分出口蒸气温度检测器15检测,其信号通过温度控制器11送到低值选择器19.燃气轮机中的压力 气缸由燃气轮机气缸压力检测器17检测,高温部分8出口处的冷却蒸汽的压力由高温部分出口蒸汽压力检测器16检测。其差分信号被发送到压力控制器18。 来自温度控制器11和压力控制器18的信号被输入到下部选择器19中,并且温度控制阀12被其较低的值控制为打开和关闭。

    Combined cycle electric power plant
    2.
    发明授权
    Combined cycle electric power plant 有权
    联合循环发电厂

    公开(公告)号:US6164056A

    公开(公告)日:2000-12-26

    申请号:US381612

    申请日:1999-09-23

    IPC分类号: F01K23/10 F02C6/18

    摘要: The present invention provides a combined cycle electric power generating plant that effectively reduces the noise produced by the exhaust of steam in the warm-up process or the like. This plant has a duct which drives the steam used for warming a steam cooling system which cools the high temperature parts which are cooled of the gas turbine at the start of the operation to an exhaust duct of the gas turbine. The steam used for warming a steam cooling system is directed to the exhaust duct of the gas turbine, and the noise which is produced by the exhaust of the steam for warming is silenced by the exhaust duct of the gas turbine.

    摘要翻译: PCT No.PCT / JP98 / 00263 Sec。 371 1999年9月23日第 102(e)1999年9月23日PCT PCT 1998年1月23日PCT公布。 第WO99 /​​ 37902号公报 日期:1999年7月29日本发明提供了一种组合循环发电设备,其有效地降低了预热过程等中的蒸汽排气产生的噪声。 该工厂具有驱动用于加热蒸汽冷却系统的蒸汽的管道,该蒸汽冷却系统将在操作开始时被冷却的燃气轮机的高温部件冷却到燃气轮机的排气管道。 用于加热蒸汽冷却系统的蒸汽被引导到燃气轮机的排气管道,并且由用于加热的蒸汽的排气产生的噪声被燃气轮机的排气管道沉没。

    Combined cycle power generation plant

    公开(公告)号:US06442926B1

    公开(公告)日:2002-09-03

    申请号:US09381952

    申请日:1999-09-28

    IPC分类号: F02C600

    摘要: A means detecting the flow of the steam at the gateway of the steam cooling system is provided, and the timing of the finish of the warm-up process of the steam cooling system at start-up is decided by the difference of the flow of the steam at the gateway. In case of the difference between the flow of the steam at the inlet and the flow of the steam at the outlet is below a permitted value, it is considered that residual air and drainage have been purged, the warming-up is finished, and the step for starting the gas turbine can be performed.

    Combined cycle electric power plant
    4.
    发明授权
    Combined cycle electric power plant 有权
    联合循环发电厂

    公开(公告)号:US06311474B2

    公开(公告)日:2001-11-06

    申请号:US09381611

    申请日:1999-09-23

    IPC分类号: F02C712

    摘要: A combined cycle power plant having a gas turbine plant and a steam turbine plant combined together is disclosed. Steam is used for cooling a high-temperature portion (5) to be cooled around the combustor (4) of the gas turbine (2). The power plant has an air duct (9), connected to a steam path (7) for supplying steam for cooling the high-temperature portion (5), for cooling this portion using air if the steam for cooling is insufficient, typically when the plant is activated or stopped, and the air duct includes a device for boosting the air to have a pressure higher than that inside a combustor (4) of the power plant. Accordingly, the combustor and attached piping arrangement can be protected from burning and the power plant can be safely and reliably operated for a long time.

    摘要翻译: 公开了一种具有组合在一起的燃气轮机设备和汽轮机设备的联合循环发电厂。 蒸汽用于冷却在燃气轮机(2)的燃烧器(4)周围被冷却的高温部分(5)。 发电厂具有连接到用于冷却高温部分(5)的蒸汽的蒸汽通道(7)的空气管道(9),如果用于冷却的蒸汽不足,则使用空气冷却该部分,通常当 植物被激活或停止,并且空气管道包括用于升高空气以使其具有高于发电厂的燃烧器(4)内部的压力的装置。 因此,可以防止燃烧器和附接的管道装置燃烧,并且能够长时间安全可靠地运行发电厂。