Method for optimizing the operating efficiency of a fossil fuel-fired
power generation system
    81.
    发明授权
    Method for optimizing the operating efficiency of a fossil fuel-fired power generation system 失效
    一种用于优化化石燃料发电系统的运行效率的方法

    公开(公告)号:US5423272A

    公开(公告)日:1995-06-13

    申请号:US225879

    申请日:1994-04-11

    摘要: A method of operating a fossil fuel-fired power generation system (10, 10', 10", 10'") in order to thereby optimize the operating efficiency thereof. The fossil fuel-fired power generation system (10, 10', 10", 10'"), which may or may not include an SCR (56), includes at least a fossil fuel-fired steam generator (12) having a burner region (16) wherein there is effected the combustion of fossil fuel and air such that gases of combustion are produced therefrom, a first heat transfer surface (32) located downstream of the burner region (16) of the fossil fuel-fired steam generator (12), a bypass (44,58,64) around the first heat transfer surface (32,32a), an air preheater (14) located downstream of the first heat transfer surface (32,32a), first and second flow paths from the burner region (16) of the fossil fuel-fired steam generator (12) to the air preheater (14) for the gases of combustion, a sensor (54) for sensing the temperature of the gases of combustion exiting from the air preheater (14), and when an SCR (56) is included a sensor (55) for sensing the temperature of the gases entering the SCR (56).

    摘要翻译: 一种操作化石燃料发电系统(10,10',10“,10”)的方法,从而优化其运行效率。 可以包括或不包括SCR(56)的化石燃料燃料发电系统(10,10',10“,10”)至少包括化石燃料燃烧蒸汽发生器(12),其具有 燃烧器区域(16),其中实现化石燃料和空气的燃烧,从而由其产生燃烧气体;位于化石燃料燃烧蒸汽的燃烧器区域(16)下游的第一传热表面(32) 发电机(12),围绕第一传热表面(32,32a)的旁路(44,58,64),位于第一传热表面(32,32a)下游的空气预热器(14),第一和第二流 从化石燃料燃烧蒸汽发生器(12)的燃烧器区域(16)到用于燃烧气体的空气预热器(14)的路径,用于感测从空气中排出的燃烧气体的温度的传感器(54) 预热器(14),并且当包括SCR(56)时,用于感测进入SCR(56)的气体的温度的传感器(55)。

    Waste heat recovery system
    82.
    发明授权
    Waste heat recovery system 失效
    余热回收系统

    公开(公告)号:US4875436A

    公开(公告)日:1989-10-24

    申请号:US197530

    申请日:1988-05-23

    IPC分类号: B01D53/86 F22B37/00 F23J15/00

    摘要: There is provided a waste heat recovery system characterized by a boiler assembly including a heat recovery steam generator through which exhaust gas is flowed. The boiler assembly includes a high temperature steam tube heat exchanger, or superheater, and at a location downstream therefrom a water tube boiler. An ammonia gas injector is utilized for injecting ammonia into the exhaust gas stream which injector is located upstream of the superheater and water tube boiler. Finally, there is provided a low temperature selective catalytic reduction unit located downstream of the low temperature water tube boiler or evaporator. This arrangement simplifies retrofitting of existing heat recovery systems.

    摘要翻译: 提供了一种废热回收系统,其特征在于包括通过其排出废气的热回收蒸汽发生器的锅炉组件。 锅炉组件包括高温蒸汽管热交换器或过热器,并且在其下游的位置处具有水管式锅炉。 氨气注射器用于将氨注入废气流中,该喷射器位于过热器和水管锅炉的上游。 最后,提供了位于低温水管锅炉或蒸发器下游的低温选择性催化还原装置。 这种安排简化了现有热回收系统的改造。

    Steam boiler with gas mixing apparatus
    83.
    发明授权
    Steam boiler with gas mixing apparatus 失效
    蒸汽锅炉与气体混合设备

    公开(公告)号:US4738226A

    公开(公告)日:1988-04-19

    申请号:US850272

    申请日:1986-04-10

    IPC分类号: F22B37/00 F22B37/40 F22G5/04

    CPC分类号: F22B37/40 F22B37/008 F22G5/04

    摘要: A steam boiler which includes a rear flue containing superheaters, reheaters, economizers and the like, a plurality of gas passages, and one or more dampers for regulating the flow of gases passing through the plurality of gas passages. In this arrangement, a gas mixer is provided to evenly mix the gases at the outlets of the gas passages.

    摘要翻译: 一种蒸汽锅炉,其包括含有过热器,再热器,节能器等的后烟道,多个气体通道和用于调节通过多个气体通道的气体流的一个或多个阻尼器。 在这种布置中,提供气体混合器以在气体通道的出口处均匀地混合气体。

    AUXILLARY STEAM GENERATION ARRANGEMENT FOR A COMBINED CYCLE POWER PLANT
    84.
    发明申请
    AUXILLARY STEAM GENERATION ARRANGEMENT FOR A COMBINED CYCLE POWER PLANT 有权
    用于组合循环发电厂的辅助蒸汽发生装置

    公开(公告)号:US20150192039A1

    公开(公告)日:2015-07-09

    申请号:US14148065

    申请日:2014-01-06

    IPC分类号: F01K23/10 F02C7/18 F01K13/00

    摘要: A combined cycle plant (10) including: a gas turbine engine (12) having a compressor (14), a combustor and a gas turbine (16); a heat recovery steam generator (20) (HRSG) configured to receive exhaust from the gas turbine engine; a steam turbine (22, 24) configured to receive steam from the HRSG; a supplemental air arrangement (40) configured to generate supplemental heated air (42) when operating and to operate independent of the gas turbine engine; and a kettle boiler (26, 28) configured to use heat from the supplemental heated air to generate steam used in the steam turbine

    摘要翻译: 一种联合循环设备(10),包括:具有压缩机(14),燃烧室和燃气轮机(16)的燃气涡轮发动机(12)。 配置为接收来自燃气涡轮发动机的排气的热回收蒸汽发生器(20)(HRSG) 蒸汽轮机(22,24),被配置为从所述HRSG接收蒸汽; 配置成在操作时产生补充加热空气(42)并独立于燃气涡轮发动机运行的补充空气装置(40); 以及锅炉锅炉(26,28),其被配置为使用来自所述补充加热空气的热量来产生在所述蒸汽轮机中使用的蒸汽

    METHOD FOR OPERATING PULVERIZED-COAL-FIRED BOILER FACILITY
    85.
    发明申请
    METHOD FOR OPERATING PULVERIZED-COAL-FIRED BOILER FACILITY 审中-公开
    操作燃煤锅炉设备的方法

    公开(公告)号:US20140069307A1

    公开(公告)日:2014-03-13

    申请号:US14117716

    申请日:2012-07-12

    申请人: Toshiya Tada

    发明人: Toshiya Tada

    IPC分类号: F23D1/00 F23L7/00

    摘要: Provided is a method for operating a pulverized coal-fired boiler facility, wherein upgraded low-grade coal can be safely used as fuel and an existing facility needs little remodeling. The present invention relates to a method for operating a pulverized coal-fired boiler facility (100) that uses upgraded brown coal as fuel. Boiler exhaust gas taken out of an exhaust gas duct (31) is added to air from a primary air fan (10) to prepare mixed gas with an oxygen concentration of less than 12% in a volume ratio, the mixed gas is caused to separately flow to a carrier gas duct (33) that goes through a GAH (8) and a bypass carrier gas duct (34) that bypasses the GAH (8), and thereafter the mixed gas is supplied to a mill (21).

    摘要翻译: 提供了一种用于操作粉煤燃烧锅炉设备的方法,其中升级的低等级煤炭可以安全地用作燃料,并且现有设施几乎不需要重塑。 本发明涉及一种使用升级后的褐煤作为燃料的粉煤燃烧锅炉设备(100)的运行方法。 将从废气导管(31)取出的锅炉废气从一次风扇(10)加入到空气中,制成体积比为氧浓度小于12%的混合气体,分别混合气体 流到通过GAH(8)的载气管道(33)和绕过GAH(8)的旁路载气管道(34),之后将混合气体供给到研磨机(21)。

    Method of operating a gas turbine power plant with auxiliary power to reduce emissions
    88.
    发明授权
    Method of operating a gas turbine power plant with auxiliary power to reduce emissions 失效
    运行具有辅助动力的燃气轮机发电厂以减少排放的方法

    公开(公告)号:US08495858B2

    公开(公告)日:2013-07-30

    申请号:US12639431

    申请日:2009-12-16

    IPC分类号: F02C6/00 F02G1/00 F02G3/00

    摘要: A method of operating a gas turbine power plant including an auxiliary power output for reducing power plant emissions. A heat recovery steam generator receives an expanded working medium from a gas turbine and removes heat from the expanded working medium to form a reduced temperature exhaust gas and to generate steam from the heat removed from the expanded working medium. A steam turbine and generator assembly operates on the steam to produce an auxiliary plant output. A selective catalytic reduction (SCR) system is provided for receiving the reduced temperature exhaust gas; and an auxiliary fan is powered by the auxiliary plant output to supply dilution air for further reducing the temperature of the exhaust gas to prior to passing the exhaust gas through the SCR system.

    摘要翻译: 一种操作包括用于减少发电厂排放的辅助动力输出的燃气轮机发电厂的方法。 热回收蒸汽发生器从燃气轮机接收膨胀的工作介质,并从膨胀的工作介质中除去热量以形成降低温度的废气,并从从膨胀的工作介质中除去的热量产生蒸汽。 蒸汽轮机和发电机组件在蒸汽上运行以产生辅助设备输出。 提供了用于接收降温废气的选择性催化还原(SCR)系统; 并且辅助风扇由辅助设备输出供电以供应稀释空气,用于在废气通过SCR系统之前进一步降低废气的温度。

    POWER PLANT FOR CO2 CAPTURE
    90.
    发明申请
    POWER PLANT FOR CO2 CAPTURE 审中-公开
    二氧化碳捕获电厂

    公开(公告)号:US20120227372A1

    公开(公告)日:2012-09-13

    申请号:US13431400

    申请日:2012-03-27

    IPC分类号: F01K23/10 B23P6/00 F01K23/04

    摘要: A power plant is provided including a steam power plant and/or a combined cycle power plant. A water steam cycle of the plant includes two steam turbine arrangements; the first turbine arrangement includes steam turbines with at least two pressure levels and a second turbine arrangement having at least one back pressure turbine configured to expand steam to the supply pressure of a CO2 capture system. A method for operating the plant includes operating the first steam turbine arrangement to produce power during all steady state operating points of the steam cycle and at least a part of the second steam turbine arrangement is bypassed to the system and/or is operated to produce power and to release low-pressure steam to the system when the system is in operation. Both steam turbine arrangements are operated using all available steam to produce power when the system is not in operation.

    摘要翻译: 提供包括蒸汽发电厂和/或联合循环发电厂的发电厂。 工厂的水蒸汽循环包括两个蒸汽轮机装置; 第一涡轮装置包括具有至少两个压力水平的蒸汽涡轮机,以及具有至少一个背压涡轮机的第二涡轮机装置,该涡轮机构造成将蒸汽膨胀到CO2捕获系统的供应压力。 用于操作设备的方法包括操作第一蒸汽轮机装置以在蒸汽循环的所有稳态工作点期间产生动力,并且第二蒸汽涡轮机装置的至少一部分被旁路到系统和/或被操作以产生动力 并在系统运行时向系统释放低压蒸汽。 当系统不运行时,两个蒸汽轮机装置都使用所有可用的蒸汽进行操作以产生电力。