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    • 9. 发明申请
    • POWER GENERATION PLANT
    • 发电厂
    • US20120186263A1
    • 2012-07-26
    • US13354698
    • 2012-01-20
    • Hiroshi Tanabe
    • Hiroshi Tanabe
    • F02C7/22
    • F02C3/22F02C3/20F02C3/30F02C7/14F02C7/22
    • A power-generation plant 10 including a gas turbine 11; a fuel-gas cooler 13; and an extraction line 24 that guides the fuel gas extracted from an intermediate stage of a fuel-gas compressor 12 to the fuel-gas cooler 13; a first level detector 61 that detects whether a level of the coolant accumulated at a bottom portion of the fuel-gas cooler 13 has reached a predetermined level; and a controller that stops the gas turbine 11 on the basis of a detection signal sent from the first level detector 61 and that outputs a command signal for stopping a coolant pump 53 that supplies the coolant to the spray nozzles 44 and 45.
    • 包括燃气轮机11的发电厂10; 燃料气体冷却器13; 以及将从燃料气体压缩机12的中间阶段抽出的燃料气体引导到燃料气体冷却器13的抽出管线24; 第一电平检测器61,其检测在燃料气体冷却器13的底部积聚的冷却水位是否达到预定水平; 以及控制器,其基于从第一电平检测器61发送的检测信号停止燃气轮机11,并且输出用于停止向喷嘴44和45供应冷却剂的冷却剂泵53的命令信号。
    • 10. 发明授权
    • Method of starting and stopping gas turbine and start-and-stop control device
    • 启动和停止燃气轮机和启停控制装置的方法
    • US08151572B2
    • 2012-04-10
    • US12442338
    • 2007-09-19
    • Satoshi TanakaHiroshi TanabeYasuhiro Hashimoto
    • Satoshi TanakaHiroshi TanabeYasuhiro Hashimoto
    • F02C7/22F02C7/26
    • F02C9/40F01D19/00F01D21/00F02C7/232F02C7/26
    • An object of the present invention is to provide a method of starting and stopping a gas turbine and a start-and-stop control device, which are capable of solving a problem of a failure in normally igniting a fuel gas due to a purge gas (nitrogen gas) remaining in a fuel gas pipe and thereby igniting the fuel gas stably. For this purpose, the start-and-stop control device performs control at the time of starting the gas turbine by sequentially performing: first exhaust gas duct purge for pushing out a fuel gas remaining in an exhaust gas duct with compressed air from a compressor; fuel gas pipe purge for pushing out nitrogen gas remaining in a fuel gas pipe between a fuel gas shutoff valve and a combustor at the time of stopping the gas turbine by the fuel gas by opening a fuel gas shutoff valve; and second exhaust gas duct purge for pushing out the fuel gas remaining in the exhaust gas duct at the time of the fuel gas pipe purge by the compressed air from the compressor, and then the fuel gas is supplied to the combustor by opening the fuel gas shutoff valve again and ignited.
    • 本发明的目的是提供一种启动和停止燃气轮机和起动和停止控制装置的方法,其能够解决由于吹扫气体而导致的燃料气体的正常点燃故障的问题( 氮气)残留在燃料气体管中,从而稳定地点燃燃料气体。 为此,启动和停止控制装置在启动燃气轮机时,通过依次执行以下步骤来执行控制:第一废气管道吹扫,用于从压缩机推出压缩空气中的残留在废气管道中的燃料气体; 用于通过打开燃料气体截止阀,在燃料气体停止燃气轮机时,在燃料气体切断阀和燃烧器之间排出残留在燃料气体管道中的氮气的燃料气体管道吹扫; 以及第二废气管道吹扫,用于在通过来自压缩机的压缩空气吹扫燃料气体管道时推出残留在排气管道中的燃料气体,然后通过打开燃料气体将燃料气体供应到燃烧器 关闭阀再次点火。