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    Efficient valve position controller for use in a steam turbine power plant
    1.
    发明授权
    Efficient valve position controller for use in a steam turbine power plant 失效
    用于汽轮机发电厂的高效阀门位置控制器

    公开(公告)号：US4178762A

    公开(公告)日：1979-12-18

    申请号：US889764

    申请日：1978-03-24

    Applicant: Morton H. Binstock ,  Steven J. Johnson

    Inventor： Morton H. Binstock ,  Steven J. Johnson

    IPC: F01D17/18 ,  F01K13/02 ,  F22B35/06

    CPC classification number: F22B35/06 ,  F01D17/18 ,  F01K13/02 ,  F05D2220/50

    Abstract: An efficient valve position controller adapted for use in a steam turbine power plant for efficiently positioning a plurality of steam admission valves to substantially effect a desired power generation level is disclosed. The power plant includes a boiler for generating steam to the turbine at a boiler throttle pressure that is governed by a pressure set point; a valve control means which is governed by a reference signal corresponding to the desired power generation level to position the plurality of steam admission valves in a state according to a predetermined valve positioning pattern based on the value of the reference signal; and an electrical generator driven by the steam turbine to generate electrical energy. A plurality of values of the reference signal are predetermined as being related to efficient valve position states for regulating steam admission to the turbine. The controller adjusts the pressure set point at a desired rate and in a direction as determined by the difference between a selected one of the predetermined values and a present value of the reference signal. Accordingly, the reference signal is modulated as a function of the pressure set point adjustment until the reference signal is substantially equal to the selected value at which time the reference signal is governing the valves substantially at an efficient valve position state and further pressure set point adjustment is inhibited. In addition, when the reference signal becomes equal to a predetermined threshold value which is indicative of the steam admission valves being substantially wide open, the pressure set point is adjusted to a preset value.

    Abstract translation: 公开了一种适用于汽轮机发电厂的高效率阀门位置控制器，用于有效地定位多个蒸汽入口阀，从而基本上实现了所需的发电量。 发电厂包括锅炉，其以由压力设定点控制的锅炉节流压力向涡轮机产生蒸汽; 阀控制装置，其由对应于期望发电水平的参考信号控制，以基于参考信号的值根据预定的阀定位模式将多个蒸汽进入阀定位在状态; 以及由蒸汽轮机驱动以产生电能的发电机。 参考信号的多个值被预先确定为与用于调节进入涡轮机的蒸气的有效的阀位置状态有关。 控制器以期望的速率和由所选择的一个预定值与参考信号的当前值之间的差确定的方向来调节压力设定点。 因此，参考信号被调制为压力设定点调整的函数，直到参考信号基本上等于所选择的值，此时参考信号基本上控制阀处于有效的阀位置状态，并且进一步的压力设定点调整 被抑制。 此外，当参考信号变得等于表示蒸汽进入阀基本上敞开的预定阈值时，压力设定点被调整到预设值。

    Steam generator
    2.
    发明授权
    Steam generator 失效
    蒸汽发生器

    公开(公告)号：US4080789A

    公开(公告)日：1978-03-28

    申请号：US726068

    申请日：1976-09-24

    Applicant: Dieter Frei

    Inventor： Dieter Frei

    IPC: F22D1/12 ,  F22B35/06 ,  F22D5/26 ,  F01K3/22

    CPC classification number: F22D5/26 ,  F22B35/06

    Abstract: A line is connected to a branch point between the gas-heated preheater and evaporator to deliver heated feed water to the supply tank while control valves are placed in the feed line to the preheater and the line to the supply tank. These valves are controlled by a temperature measuring means adjacent the branch point. If the measured temperature increases, the flow of feed water to the preheater increases.

    Abstract translation: 线路连接到气体加热的预热器和蒸发器之间的分支点，以将加热的给水输送到供应罐，而控制阀被放置在预热器的供给管线和供应罐的管线中。 这些阀由邻近分支点的温度测量装置控制。 如果测量的温度升高，则预热器的给水流量增加。

    EXHAUST HEAT COLLECTING SYSTEM
    4.
    发明申请
    EXHAUST HEAT COLLECTING SYSTEM 审中-公开

    公开(公告)号：US20170101900A1

    公开(公告)日：2017-04-13

    申请号：US15284916

    申请日：2016-10-04

    Applicant: KABUSHIKI KAISHA TOSHIBA

    Inventor： Koichi GOTO ,  Kazuo TAKAHATA ,  Takahiro KOSUGA

    IPC: F01K7/44 ,  F01K23/10 ,  F22B1/18 ,  F22B35/06

    CPC classification number: F01K7/44 ,  F01K23/10 ,  F22B1/1815 ,  F22B35/06

    Abstract: In one embodiment, an exhaust heat collecting system of collecting exhaust heat in a fluid treatment system. The fluid treatment system includes a fluid path to convey at least an operating fluid or a cooled fluid among first and second heat source fluids, the operating fluid and the cooled fluid. The fluid treatment system further includes a fluid treatment module including an expansion module, a power generator and a condenser for the operating fluid, or including a heat absorbing module and a heat releasing module for the cooled fluid. The exhaust heat collecting system includes a water path to heat water by using the condenser or the heat releasing module, and a heater to heat the water from the water path by using the first or second heat source fluid or the operating fluid to produce the water to be used as hot water or to produce steam.

    ECONOMIZER WATER RECIRCULATION SYSTEM FOR BOILER EXIT GAS TEMPERATURE CONTROL IN SUPERCRITICAL PRESSURE BOILERS
    6.
    发明申请
    ECONOMIZER WATER RECIRCULATION SYSTEM FOR BOILER EXIT GAS TEMPERATURE CONTROL IN SUPERCRITICAL PRESSURE BOILERS 有权
    超临界锅炉锅炉出口温度控制的经济型水回收系统

    公开(公告)号：US20110155347A1

    公开(公告)日：2011-06-30

    申请号：US12731539

    申请日：2010-03-25

    Applicant: Michael J. Hargrove ,  Gary J. Navitsky ,  Jason J. Wailgum ,  Bernard H. Walsh

    Inventor： Michael J. Hargrove ,  Gary J. Navitsky ,  Jason J. Wailgum ,  Bernard H. Walsh

    IPC: F28D15/00 ,  F22D7/00

    CPC classification number: F22B3/08 ,  F22B29/026 ,  F22B29/068 ,  F22B35/06 ,  F22B37/00 ,  F22B37/008 ,  F22D1/003 ,  F22D1/28 ,  F22D7/00

    Abstract: A fluid recirculation system includes an arrangement of a flow control valve located to receive a flow of fluid from an inlet. The system further comprises an economizer inlet mixing device located to receive the flow of hotter fluid from the arrangement of the flow control valve and from a cooler feedwater stream. An economizer inlet mixing device located upstream of an economizer in a supercritical pressure boiler includes a sparger assembly through which a flow of fluid from the waterwall outlet is received, an inlet through which a flow of fluid from a feed stream is received, and a wave breaker assembly through which an outlet stream from the economizer inlet mixing device is directed. A method of increasing and controlling the temperature of a flue gas exiting an economizer in a supercritical pressure boiler includes receiving at least a flow of fluid from a fluid stream from a furnace waterwall outlet, combining at least a portion of the received flow of fluid with a feedwater stream, and directing the combined received flow of fluid and feedwater stream to an economizer inlet to decrease the economizer heat absorption.

    Abstract translation: 流体再循环系统包括流量控制阀的布置，该流量控制阀定位成从入口接收流体流。 该系统还包括节能器入口混合装置，其被定位成从流量控制阀的装置和较冷的给水流接收更热的流体流。 位于超临界压力锅炉中的节能器上游的节能器入口混合装置包括一个分配器组件，一个来自水壁出口的流体流通过该分配器组件，一个从进料流流出的流体被接纳的入口， 断路器组件，来自节能器入口混合装置的出口流通过该组件被引导。 一种增加和控制在超临界压力锅炉中排出节能器的烟道气的温度的方法包括从来自熔炉水壁出口的流体流接收至少一种流体流，将至少一部分所接收的流体流与 给水流，并将流体和给水流的组合接收流引导到节能器入口以减少节能器热吸收。

    Steam output control system
    7.
    发明授权
    Steam output control system 失效
    蒸汽输出控制系统

    公开(公告)号：US4393649A

    公开(公告)日：1983-07-19

    申请号：US175287

    申请日：1980-08-04

    Applicant: Dah Yu Cheng

    Inventor： Dah Yu Cheng

    IPC: F02C3/30 ,  F01K21/04 ,  F02C6/00 ,  F22B35/00 ,  F22B35/06 ,  F02C7/00

    CPC classification number: F02C3/30 ,  F01K21/047 ,  F22B35/007 ,  F22B35/06 ,  Y02E20/14

    Abstract: The steam control valve for a waste heat boiler in a Cheng Dual Fluid Cycle (DFC) engine is located between the evaporator and superheater sections. In this location it maximizes the temperature of the superheater steam to provide maximum waste heat recovery.

    Abstract translation: 成双流体循环（DFC）发动机废热锅炉的蒸汽控制阀位于蒸发器和过热器部分之间。 在这个位置，它使过热器蒸汽的温度最大化，以提供最大的余热回收。

    System for minimizing valve throttling losses in a steam turbine power plant
    8.
    发明授权
    System for minimizing valve throttling losses in a steam turbine power plant 失效
    用于最小化汽轮机发电厂的阀节流损失的系统

    公开(公告)号：US4178763A

    公开(公告)日：1979-12-18

    申请号：US889770

    申请日：1978-03-24

    Applicant: Louis P. Stern ,  Steven J. Johnson

    Inventor： Louis P. Stern ,  Steven J. Johnson

    IPC: F01D17/18 ,  F01K13/02 ,  F22B35/06

    CPC classification number: F01D17/18 ,  F01K13/02 ,  F22B35/06 ,  F05D2220/50

    Abstract: A system which integrates the controls of a steam turbine power plant for minimizing power plant energy losses substantially caused by steam flow valve throttling is disclosed. The steam turbine power plant includes boiler pressure controls for controlling the boiler throttle pressure of a steam producing boiler and turbine-generator controls for positioning a plurality of turbine steam admission values to regulate the steam flow conducted through a steam turbine which governs the electrical energy generated by an electrical generator at a desired power generation level. The turbine-generator controls predetermines a plurality of valve position states to establish a predetermined valve grouping sequential positioning pattern for the steam admission valves to regulate steam flow through the steam turbine across the range of power generation, each predetermined state substantially corresponding to a minimum of valve throttling losses. The steam admission valves may be positioned at a present valve position state, which is other than one of the predetermined states, as a result of a change in desired power generation level. The disclosed system responds to this condition by governing the boiler pressure controls to adjust the boiler throttle pressure at a desired rate and in a direction to cause steam admission valves to be repositioned according to the sequential positioning pattern to a selected one of the predetermined efficient valve position states. The repositioning of the steam admission valves is performed by maintaining the generated energy substantially at the new desired power generation level.

    Abstract translation: 公开了一种将汽轮机发电厂的控制集成在一起的系统，用于最小化由蒸汽流量阀节流引起的发电厂能量损失。 蒸汽轮机发电厂包括用于控制蒸汽产生锅炉的锅炉节流压力的锅炉压力控制器和用于定位多个涡轮机蒸汽入口值的涡轮发电机控制器，以调节通过蒸汽涡轮机传导的蒸汽流量，该蒸汽涡轮机控制产生的电能 通过期望发电水平的发电机。 涡轮发电机控制器预先确定多个阀位置状态，以建立用于蒸汽进入阀的预定阀组顺序定位模式，以在整个发电范围内调节通过蒸汽涡轮机的蒸汽流量，每个预定状态基本上对应于 阀门节流损失。 作为期望发电水平的变化的结果，蒸汽进入阀可以被定位在目前的阀位置状态，其不同于预定状态之一。 所公开的系统通过控制锅炉压力控制来调节锅炉压力控制来调节锅炉节气门压力，以便按照所选择的一个预定有效阀门的顺序定位模式将蒸汽入口阀重新定位 位置状态。 蒸汽进入阀的重新定位是通过将产生的能量基本保持在新的期望发电水平来进行的。

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