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公开(公告)号：US10948178B2
公开(公告)日：2021-03-16
申请号：US16314905
申请日：2016-08-05
发明人： Jan Brückner , Frank Thomas
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.
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12.发明申请公开(公告)号：US20190271239A1
公开(公告)日：2019-09-05
申请号：US16319897
申请日：2017-08-24
发明人： Zsuzsa Preitl , Frank Thomas , Bernd Weissenberger
摘要： A method for the short-term adjustment of the output of a steam turbine of a combined-cycle power plant, includes: opening, respectively closing, a backed-up turbine valve of a pressure stage, according to a required change in output; comparing a desired pressure with a pressure measurement upstream of the turbine valve to measure pressure of steam mass flow flowing into the pressure stage; and opening, respectively closing, a feed line for introducing a variable proportion of water into the steam mass flow as soon as the pressure falls below or exceeds the desired pressure; the variable proportion of water is introduced into the steam mass flow until an adjusted desired steam temperature is reached, which is determined from the difference between a basic specified desired steam temperature and the default value of a controller which operates at least proportionally and evaluates the difference between the pressure measurement and the desired pressure.
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公开(公告)号：US20160178190A1
公开(公告)日：2016-06-23
申请号：US14909585
申请日：2014-07-29
发明人： Joachim Brodesser , Jan Brückner , Martin Effert , Tobias Schulze , Frank Thomas
CPC分类号： F22B29/062 , F22B21/34 , F22B21/345 , F22B35/10 , F22B35/104 , F22B35/108
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。
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公开(公告)号：US20150275704A1
公开(公告)日：2015-10-01
申请号：US14433712
申请日：2013-10-02
CPC分类号： F01K23/101 , F01K23/105 , F22B1/1807 , F22B1/1861 , F22B35/08 , F22B35/083 , F22B35/107 , Y02E20/16
摘要： A method for flexibly operating a nuclear power plant with a waste heat steam generator that operates according to the forced-flow principle and that has heating surfaces of different stages of the waste heat steam generator, the heating surfaces being arranged in the flue gas channel, is provided. In order to increase the output, a mass flow of the feedwater flowing through the heating surfaces is increased while almost simultaneously activating a supplementary firing arranged in the flue gas channel of the waste heat steam generator.
摘要翻译： 一种利用废热蒸汽发生器灵活运行核电站的方法，所述废热蒸汽发生器根据强制流动原理工作，并且具有废热蒸汽发生器的不同阶段的加热面，所述加热面设置在烟道气通道中， 被提供。 为了提高输出，流过加热面的给水的质量流量增加，同时几乎同时启动排列在废热蒸汽发生器的烟道中的补充燃烧。
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公开(公告)号：US20150083111A1
公开(公告)日：2015-03-26
申请号：US14391746
申请日：2013-04-11
发明人： Jan Brückner , Frank Thomas
摘要： A solar thermal power plant, wherein, in an intermediate superheater in the water-steam circuit, steam is heated to a settable setpoint temperature value at the outlet by a heat carrier medium which has been heated solar-thermally, wherein, for the heating of the steam to a set setpoint temperature value, a mass flow of the heat carrier medium entering the intermediate superheater is controlled as a function of a determined enthalpy difference of the heat carrier medium between the entry and exit thereof into and out of the intermediate superheater and as a function of a determined enthalpy difference of the steam between the exit and entry thereof out of and into the intermediate superheater is provided.
摘要翻译： 一种太阳能发电厂，其中在水蒸汽回路中的中间过热器中，蒸汽在太阳热加热的热载体介质上在出口被加热到可设定的设定点温度值，其中，对于加热 蒸汽到设定的设定点温度值，进入中间过热器的热载体介质的质量流量作为热载体介质进入和离开中间过热器的入口和出口的确定的焓差的函数被控制，以及 提供了确定的出口和进入中间过热器之间的蒸汽的焓差的函数。
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公开(公告)号：US11118781B2
公开(公告)日：2021-09-14
申请号：US16314088
申请日：2016-07-19
发明人： Jan Brückner , Frank Thomas
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.
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公开(公告)号：US20170307207A1
公开(公告)日：2017-10-26
申请号：US15518323
申请日：2015-10-29
发明人： Jan Brückner , Frank Thomas
CPC分类号： F22B1/1807 , F22B29/06 , F22B35/10 , F22B35/18 , F22D1/02 , Y02E20/363
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.
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