COMBINED CYCLE GAS TURBINE PLANT COMPRISING A WASTE HEAT STEAM GENERATOR AND FUEL PREHEATING STEP
    1.
    发明申请
    COMBINED CYCLE GAS TURBINE PLANT COMPRISING A WASTE HEAT STEAM GENERATOR AND FUEL PREHEATING STEP 审中-公开
    组合式循环气体涡轮机,包括废热发生器和燃料预热步骤

    公开(公告)号:US20160230606A1

    公开(公告)日:2016-08-11

    申请号:US15021530

    申请日:2014-08-21

    IPC分类号: F01K23/10 F02C7/224

    摘要: A combined cycle gas turbine plant and a corresponding method for operating such a combined cycle gas turbine plant, in which, during load operation of the combined cycle gas turbine plant, a water mass flow which is supplied according to the forced-flow principle to a waste heat steam generator is adjusted such that the evaporator heating surface of the medium pressure stage is oversupplied and thus a defined amount of excess water, which is heated in the evaporator heating surface but not vaporized, is discharged via the water-steam separator to a heat exchanger circuit for preheating fuel for the gas turbine.

    摘要翻译: 一种联合循环燃气轮机设备和用于操作这种组合循环燃气轮机设备的相应方法,其中在联合循环燃气轮机设备的负载操作期间,根据强制流动原理供应的水质量流向 调节废热蒸汽发生器,使得中压级的蒸发器加热表面过度供应,因此在蒸发器加热表面中加热但未蒸发的限定量的过量水通过水 - 蒸汽分离器排出至 用于燃气轮机预热燃料的热交换器回路。

    Method for flexible operation of a power plant

    公开(公告)号:US10731525B2

    公开(公告)日:2020-08-04

    申请号:US14782607

    申请日:2014-03-26

    摘要: A method for flexible operation of a power plant having a recovery steam generator having heat exchanger stages for generating live steam and/or reheater steam for a steam turbine from an exhaust flow of a gas turbine, wherein auxiliary firing is arranged in a flue gas channel of the recovery steam generator in the region of the heat exchanger stages. In order to regulate the live steam and/or the reheater steam, at least one injection cooling device is brought online directly upon using the auxiliary firing.

    METHOD FOR OPERATING A WASTE HEAT STEAM GENERATOR

    公开(公告)号:US20190338944A1

    公开(公告)日:2019-11-07

    申请号:US16314905

    申请日:2016-08-05

    IPC分类号: F22D5/34 F22D1/12

    摘要: A method for operating a waste heat steam generator, in particular one designed according to the forced flow principle, having an evaporator, through which a flow medium flows; an economizer having a number of economizer heating surfaces, and having a bypass line, which on the flow medium side is connected in parallel to a number of economizer heating surfaces. A variable that is characteristic of the heat energy supplied to the waste heat steam generator for controlling or regulating the flow rate of the bypass line is used, wherein the regulating or controlling of the flow rate of the flow medium through the bypass line takes place at the inlet of the evaporator subject to a supercooling target value. The regulating or controlling of the flow rate of the flow medium through the bypass line also takes place at the outlet of the evaporator subject to an overheating target value.

    VERTICAL HEAT RECOVERY STEAM GENERATOR
    4.
    发明申请

    公开(公告)号:US20190170344A1

    公开(公告)日:2019-06-06

    申请号:US16314088

    申请日:2016-07-19

    摘要: A vertical heat recovery steam generator, the low-pressure stages of which are designed as a once-through system, having a condensate preheater with at least one condensate preheater heating surface, through which a flow medium flows and which is disposed in a hot gas channel through which hot gas flows, a low-pressure preheater with at least one low-pressure preheater heating surface through which the flow medium flows and which is disposed in the hot gas channel, and a low-pressure evaporator with at least one low-pressure evaporator heating surface through which the flow medium flows and which is disposed in the hot gas channel. The flow medium flows successively through the at least one low-pressure preheater heating surface and the at least one low-pressure evaporator heating surface in one pass and without additional pressure compensation.

    Control method for operating a heat recovery steam generator

    公开(公告)号:US10101021B2

    公开(公告)日:2018-10-16

    申请号:US15518323

    申请日:2015-10-29

    摘要: A control method for operating a heat recovery steam generator having a flue gas channel in which an evaporator, having at least two evaporator heating surfaces arranged successively in the flue gas channel and at least one intermediate heating surface arranged between the evaporator heating surfaces, is provided, the method including determining a characteristic value characteristic of the heat absorption in the evaporator for the evaporator heating surfaces, additionally determining for the at least one intermediate heating surface, an additional characteristic value for the heat absorption of the intermediate heating surface, and subtracting this additional characteristic value from the characteristic value characteristic of the heat absorption in the evaporator.

    Combined cycle gas turbine plant comprising a waste heat steam generator and fuel preheating step

    公开(公告)号:US10100680B2

    公开(公告)日:2018-10-16

    申请号:US15021530

    申请日:2014-08-21

    摘要: A combined cycle gas turbine plant and a corresponding method for operating such a combined cycle gas turbine plant, in which, during load operation of the combined cycle gas turbine plant, a water mass flow which is supplied according to the forced-flow principle to a waste heat steam generator is adjusted such that the evaporator heating surface of the medium pressure stage is oversupplied and thus a defined amount of excess water, which is heated in the evaporator heating surface but not vaporized, is discharged via the water-steam separator to a heat exchanger circuit for preheating fuel for the gas turbine.

    OPERATING METHOD FOR STARTING A ONCE-THROUGH STEAM GENERATOR HEATED USING SOLAR THERMAL ENERGY
    7.
    发明申请
    OPERATING METHOD FOR STARTING A ONCE-THROUGH STEAM GENERATOR HEATED USING SOLAR THERMAL ENERGY 审中-公开
    启动使用太阳能热能加热一般蒸汽发生器的操作方法

    公开(公告)号:US20160208657A1

    公开(公告)日:2016-07-21

    申请号:US14912987

    申请日:2014-08-20

    IPC分类号: F01K13/02 F03G6/06 F01K7/16

    摘要: An operating method for starting a once-through steam generator heated using solar thermal energy, wherein a flow medium flowing through the once-through steam generator is evaporated and superheated, using a heat carrier medium heated in a solar array, for a steam turbine connected downstream of the once-through steam generator on the flow medium side. In an operating phase under load, a first desired steady pressure value is predetermined, and in a starting phase preceding the operating phase under load, a second desired steady pressure value is predetermined, in which starting phase evaporated flow medium is diverted around the steam turbine via a steam bypass, and controlled by the predetermined second desired steady pressure value.

    摘要翻译: 一种用于启动使用太阳能热能加热的直通蒸汽发生器的操作方法,其中流过所述直通蒸汽发生器的流动介质通过使用在太阳能阵列中加热的热载体介质蒸发并过热,用于连接蒸汽轮机 在流动介质侧的直流蒸汽发生器的下游。 在负载下的操作阶段中,预先确定第一所需的稳定压力值,并且在负载下的操作阶段之前的起始阶段中,预定第二期望的稳定压力值,其中起动阶段蒸发的流动介质绕蒸汽轮机 通过蒸汽旁路,并由预定的第二期望的稳定压力值控制。

    OPERATING METHOD FOR AN EXTERNALLY HEATED FORCED-FLOW STEAM GENERATOR
    8.
    发明申请
    OPERATING METHOD FOR AN EXTERNALLY HEATED FORCED-FLOW STEAM GENERATOR 审中-公开
    一种外加热力蒸汽发生器的操作方法

    公开(公告)号:US20160208656A1

    公开(公告)日:2016-07-21

    申请号:US14913017

    申请日:2014-08-20

    IPC分类号: F01K7/16 F03G6/06

    摘要: An operating method for an externally heated once-through steam generator, in particular a once-through steam generator is heated using solar thermal energy and has a steam turbine connected downstream of the once-through steam generator. A pressure regulation device, having at least one turbine valve for regulating the pressure, is arranged in the feed water-steam circuit between the once-through steam generator and the steam turbine, the pressure regulation device being controlled by a control unit in such a way that, in the event of sudden load reductions, the drop in pressure associated therewith occurs, in a time delayed manner, by throttling of the at least one turbine valve.

    摘要翻译: 用于外部加热的直通式蒸汽发生器,特别是直通式蒸汽发生器的操作方法使用太阳能热能加热,并且具有连接在直流蒸汽发生器下游的蒸汽轮机。 具有至少一个用于调节压力的涡轮阀的压力调节装置设置在直流蒸汽发生器和汽轮机之间的供水 - 蒸汽回路中,压力调节装置由这样一个控制单元控制 这样一来,在突然的负荷减少的情况下,通过至少一个涡轮阀的节流,以时间延迟的方式发生与之相关联的压力下降。

    Once-through steam generator
    9.
    发明授权
    Once-through steam generator 有权
    一次性蒸汽发生器

    公开(公告)号:US09574766B2

    公开(公告)日:2017-02-21

    申请号:US14909585

    申请日:2014-07-29

    IPC分类号: F22B29/06 F22B21/34 F22B35/10

    摘要: A once-through steam generator includes a combustion chamber, the walls of which comprise vertically arranged evaporator pipes connected to one another in gas-tight fashion by pipe webs, through which evaporator pipes flows a flow medium from bottom to top. The evaporator pipes are combined by upstream inlet collectors to form more intensely and less intensely heated pipe groups. A feed water supply is assigned to respective inlet collectors. At least one regulating valve regulates throttling of the mass flow of the flow medium into the evaporator pipes. To determine a control variable for the regulating valve, temperature measurement device measures outlet temperatures of the flow medium exiting the evaporator pipes. Each of the more intensely and less intensely heated pipe groups is assigned to one of the inlet collectors and to an outlet collector, and each of the outlet collectors has one of the temperature measurement devices.

    摘要翻译: 一直通蒸汽发生器包括燃烧室,其壁包括垂直布置的蒸发器管,其蒸气管以气密方式彼此连接,通过管腹板,蒸发器管通过该蒸发器管从下向上流动流动介质。 蒸发器管道由上游入口收集器组合以形成更强烈和较不强烈加热的管道组。 给水供应被分配到相应的入口收集器。 至少一个调节阀调节流动介质的质量流量进入蒸发器管道的节流。 为了确定调节阀的控制变量,温度测量装置测量离开蒸发器管道的流动介质的出口温度。 每个更强烈和较不强烈加热的管组分配给入口收集器中的一个和出口收集器,并且每个出口收集器具有一个温度测量装置。

    METHOD FOR FLEXIBLE OPERATION OF A POWER PLANT
    10.
    发明申请
    METHOD FOR FLEXIBLE OPERATION OF A POWER PLANT 审中-公开
    电厂灵活运行的方法

    公开(公告)号:US20160040549A1

    公开(公告)日:2016-02-11

    申请号:US14782607

    申请日:2014-03-26

    IPC分类号: F01D13/00 F02G5/02 F02C3/00

    摘要: A method for flexible operation of a power plant having a recovery steam generator having heat exchanger stages for generating live steam and/or reheater steam for a steam turbine from an exhaust flow of a gas turbine, wherein auxiliary firing is arranged in a flue gas channel of the recovery steam generator in the region of the heat exchanger stages. In order to regulate the live steam and/or the reheater steam, at least one injection cooling device is brought online directly upon using the auxiliary firing.

    摘要翻译: 一种用于具有回收蒸汽发生器的回收蒸汽发生器的方法,所述回收蒸汽发生器具有用于从燃气轮机的排气流产生用于蒸汽轮机的活蒸汽和/或再热器蒸汽的热交换器级,其中辅助燃烧设置在烟道气通道 的回收蒸汽发生器在热交换器级的区域中。 为了调节活蒸汽和/或再热器蒸汽,至少一个喷射冷却装置在使用辅助燃烧时直接上线。