Method for operating a gas and steam turbine plant and a plant for
performing the method
    91.
    发明授权
    Method for operating a gas and steam turbine plant and a plant for performing the method 失效
    用于操作气体和蒸汽轮机设备和用于执行该方法的设备的方法

    公开(公告)号:US5369949A

    公开(公告)日:1994-12-06

    申请号:US156061

    申请日:1993-11-22

    IPC分类号: F01K23/06 F01K23/10 F02B43/00

    摘要: A gas and steam turbine plant includes a coal gasification plant, a gas turbine connected downstream of the coal gasification plant, a steam turbine having a water-steam loop and a steam generator connected downstream of the gas turbine. The steam generator includes a preheater connected to the water-steam loop, a heater of a high-pressure stage connected downstream of the preheater, and a heater of a low-pressure stage connected upstream of the preheater. An outflow line leads into the coal gasification plant and is connected to the water-steam loop downstream of the preheater, as seen in water flow direction. A heat exchanger has a primary side integrated with the water-steam loop between the low-pressure stage and the high-pressure stage and a secondary side connected parallel to the outflow line.

    摘要翻译: 燃气和蒸汽轮机设备包括煤气化设备,连接在煤气化设备下游的燃气轮机,具有水蒸汽回路的蒸汽轮机和连接在燃气轮机下游的蒸汽发生器。 蒸汽发生器包括连接到水蒸汽回路的预热器,连接在预热器下游的高压级的加热器和连接在预热器上游的低压级的加热器。 流出线通向煤气化装置,并与水流方向相连,并与预热器下游的水蒸气回路连接。 热交换器具有与低压级和高压级之间的水 - 蒸汽回路一体化的一次侧和与流出管线平行连接的次级侧。

    Combined cycle power plant
    92.
    发明授权
    Combined cycle power plant 失效
    联合循环发电厂

    公开(公告)号:US4989405A

    公开(公告)日:1991-02-05

    申请号:US898128

    申请日:1986-08-19

    摘要: A compact, unfired, staggered tube, once-through steam generator or boiler of simple construction intended primarily for combined cycle power plants in which the thermal energy utilized to generate steam is obtained from the exhaust gases of a gas turbine engine. The boiler provides steam at two different pressure levels, which maximizes recovery of thermal energy; and all wettable components in the steam/water loop are fabricated of corrosion resistant materials. This eliminates the need for controlling the pH of the feedwater and the need for chemically controlling its dissolved oxygen content, thereby reducing maintenance and operating costs and making automatic, unattended, remotely controlled operation of the boiler practical as well as eliminating the need for blowing down the boiler and minimizing requirements for make-up water. The boiler can be operated dry to remove gas side fouling; and feedwater flow rates can be directly controlled. Orifice-generated pressure drops at the inlets of the boiler tubes which are relatively large compared to the pressure drop in the rest of each tube eliminate the flow instability that is characteristic of once-through boilers.

    摘要翻译: 一种紧凑的,未燃烧的,交错的管,一次性蒸汽发生器或简单结构的锅炉,主要用于联合循环发电厂,其中用于产生蒸汽的热能由燃气涡轮发动机的废气获得。 锅炉提供两种不同压力水平的蒸汽,这最大限度地提高了热能的回收; 并且蒸汽/水回路中的所有可湿性部件均由耐腐蚀材料制成。 这样无需控制给水的pH值和化学控制其溶解氧含量的需要,从而降低维护和运行成本,并实现锅炉的自动,无人值守的远程控制操作,并且不需要吹扫 锅炉和化妆水的最小化要求。 锅炉可以干燥运行,以消除气体侧面污染; 给水流量可直接控制。 与每个管的其余部分的压降相比,在锅炉管的入口处的孔口产生的压降下降,这消除了直流锅炉特征的流动不稳定性。

    Steam generators and combined cycle power plants employing the same
    93.
    发明授权
    Steam generators and combined cycle power plants employing the same 失效
    蒸汽发生器和采用它们的联合循环发电厂

    公开(公告)号:US4627386A

    公开(公告)日:1986-12-09

    申请号:US723648

    申请日:1985-04-16

    摘要: A compact, unfired, staggered tube, once-through steam generator or boiler of simple construction intended primarily for combined cycle power plants in which the thermal energy utilized to generate steam is obtained from the exhaust gases of a gas turbine engine. The boiler provides steam at two different pressure levels, which maximizes recovery of thermal energy; and all wettable components in the steam/water loop are fabricated of corrosion resistant materials. This eliminates the need for controlling the pH of the feedwater and the need for chemically controlling its dissolved oxygen content, thereby reducing maintenance and operating costs and making automatic, unattended, remotely controlled operation of the boiler practical as well as eliminating the need for blowing down the boiler and minimizing requirements for make-up water. The boiler can be operated dry to remove gas side fouling; and feedwater flow rates can be directly controlled. Orifice-generated pressure drops at the inlets of the boiler tubes which are relatively large compared to the pressure drop in the rest of each tube eliminate the flow instability that is characteristic of once-through boilers.

    摘要翻译: 一种紧凑的,未燃烧的,交错的管,一次性蒸汽发生器或简单结构的锅炉,主要用于联合循环发电厂,其中用于产生蒸汽的热能由燃气涡轮发动机的废气获得。 锅炉提供两种不同压力水平的蒸汽,这最大限度地提高了热能的回收; 并且蒸汽/水回路中的所有可湿性部件均由耐腐蚀材料制成。 这样无需控制给水的pH值和化学控制其溶解氧含量的需要,从而降低维护和运行成本,并实现锅炉的自动,无人值守的远程控制操作,并且不需要吹扫 锅炉和化妆水的最小化要求。 锅炉可以干燥运行,以消除气体侧面污染; 给水流量可直接控制。 与每个管的其余部分的压降相比,在锅炉管的入口处的孔口产生的压降下降,这消除了直流锅炉特征的流动不稳定性。

    Apparatus for recovering heat from exhaust gases of marine prime movers
    94.
    发明授权
    Apparatus for recovering heat from exhaust gases of marine prime movers 失效
    用于从海洋原动机废气中回收热量的装置

    公开(公告)号:US4214450A

    公开(公告)日:1980-07-29

    申请号:US886583

    申请日:1978-03-14

    CPC分类号: F01K23/106 Y02E20/14

    摘要: An apparatus for recovering heat from the exhaust gases of marine prime movers of the kind including an exhaust gas economizer for effecting heat exchange between the exhaust gas discharged from the prime mover and feed water supplied under pressure from a feed water tank. The apparatus has a pressure regulator device for regulating the pressure of the feed water to provide sources of relatively high and low pressure feed water; a high pressure steam generator section in the exhaust gas economizer to receive high pressure feed water to generate high pressure steam for use in driving a steam turbine; a low pressure steam generator section in the economizer to receive low pressure feed water to generate general purpose steam for use for purposes other than driving the steam turbine; a low pressure steam separating device at the outlet of the low pressure steam generator section for separating saturated water from the general purpose steam; and a primary feed water preheater in a line connecting the feed water tank to the low pressure steam generator section for mixing the saturated water separated by the low pressure steam separator device and the feed water supplied from the feed water tank to the exhaust gas economizer and thereby preheating the feed water.

    摘要翻译: 一种用于从包括排气节能器的船舶原动机的废气中回收热量的装置,用于实现从原动机排出的废气与在给水箱中的压力下供给的给水之间的热交换。 该设备具有用于调节供水压力以提供较高和低压给水源的压力调节装置; 废气节能器中的高压蒸汽发生器部分,用于接收高压给水以产生用于驱动蒸汽轮机的高压蒸汽; 节能器中的低压蒸汽发生器部分,用于接收低压给水以产生用于除驱动汽轮机之外的目的的通用蒸汽; 在低压蒸汽发生器出口处的低压蒸汽分离装置,用于将饱和水与通用蒸汽分离; 以及在将供水水箱连接到低压蒸汽发生器部分的线路中的主要给水预热器,用于将由低压蒸汽分离器装置分离的饱和水和从给水箱供给的进料水混合到排气节能器, 从而预热给水。

    Method and Device For Rapid Oil Heating For Oil-Lubricated Expansion Machines

    公开(公告)号:US20180030857A1

    公开(公告)日:2018-02-01

    申请号:US14112860

    申请日:2012-04-12

    摘要: The present invention relates to a method for lubricant heating during starting up of a thermodynamic cycle device, wherein the cycle device comprises a working medium with a working substance and a lubricant, an evaporator for evaporating the working substance, a lubricant separator for separating at least part of the lubricant from the working medium which is supplied by the evaporator, an expansion machine which is to be lubricated with the lubricant, and a condenser device with a condenser, and wherein the method comprises the following steps: delivery of lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a working medium which is enriched with lubricant is provided in the condenser device and/or in the evaporator; and heating of the working medium which is enriched with lubricant in the evaporator during starting up of the cycle device. Furthermore, the invention relates to a thermodynamic cycle device which comprises means for delivering lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a working medium which is enriched with lubricant can be provided in the condenser device and/or in the evaporator.

    BOILER, COMBINED CYCLE PLANT, AND STEAM COOLING METHOD FOR BOILER

    公开(公告)号:US20170211427A1

    公开(公告)日:2017-07-27

    申请号:US15329685

    申请日:2015-09-02

    发明人: Jun TAGUCHI

    IPC分类号: F01K23/10

    摘要: The purpose of the present invention is to decrease the loss of energy of flue gas when superheated steam is cooled and prevent heat efficiency from being decreased. A boiler is provided with: economizers (a medium-pressure economizer (13) and a high-pressure secondary economizer (18)) which heat water supplied by water supply pumps (a medium-pressure water supply pump (27) and a high-pressure water supply pump (28)); evaporators (a medium-pressure evaporator (16) and a high-pressure evaporator (21)) which evaporate the water that is heated by the economizers; and cooling devices (a medium-pressure system and a high-pressure system) which mix water, as a coolant, which has passed through the economizers via the water supply pumps with steam.