ES476628A1 - Metodo y su correspondiente aparato de control electrohidraulico para turbina de vapor - Google Patents

Metodo y su correspondiente aparato de control electrohidraulico para turbina de vapor

Info

Publication number
ES476628A1
ES476628A1 ES476628A ES476628A ES476628A1 ES 476628 A1 ES476628 A1 ES 476628A1 ES 476628 A ES476628 A ES 476628A ES 476628 A ES476628 A ES 476628A ES 476628 A1 ES476628 A1 ES 476628A1
Authority
ES
Spain
Prior art keywords
mode
signals
flow
steam
steam turbine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
ES476628A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of ES476628A1 publication Critical patent/ES476628A1/es
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/24—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical electrical
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/10—Final actuators
    • F01D17/12—Final actuators arranged in stator parts
    • F01D17/18—Final actuators arranged in stator parts varying effective number of nozzles or guide conduits, e.g. sequentially operable valves for steam turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

1. Método y su correspondiente aparato de control electrohidraulico para turbina de vapor, donde en dicho método se produce el cambio del funcionamiento de una pluralidad de válvulas de una turbina de vapor desde una primera modalidad a una segunda modalidad pudiendo estar caracterizadas dichas primera y segunda modalidades respectivamente por unos primero y segundo valores de un factor de admisión de referencia de tal manera que este caudal total de vapor permanezca sustancialmente constante y la temperatura del compartimiento de la primera etapa de la turbina varíe de manera sustancialmente lineal con el factor de referencia de admisión durante el cambio de modalidad, estando este método caracterizado porque incluye las operaciones que consisten en: producir unas señales de primera y segunda modalidades y una señal de inversión; generar un multiplicador en respuesta a dicho primer valor del factor de referencia de admisión; aplicar dicho multiplicador a la señal de segunda modalidad y a dicha señal de inversión para formar una señal acondicionada; generar una señal de elevación de válvula en respuesta a la suma de dicha señal acondicionada y dicha señal de primera modalidad y hacer variar dicho factor de referencia de admisión progresivamente desde dicho primer valor hasta dicho segundo valor, con lo cual se realiza dicho cambio de modalidad.
ES476628A 1978-01-06 1979-01-05 Metodo y su correspondiente aparato de control electrohidraulico para turbina de vapor Expired ES476628A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/867,572 US4177387A (en) 1978-01-06 1978-01-06 Method and apparatus for controlled-temperature valve mode transfers in a steam turbine

Publications (1)

Publication Number Publication Date
ES476628A1 true ES476628A1 (es) 1980-07-01

Family

ID=25350055

Family Applications (1)

Application Number Title Priority Date Filing Date
ES476628A Expired ES476628A1 (es) 1978-01-06 1979-01-05 Metodo y su correspondiente aparato de control electrohidraulico para turbina de vapor

Country Status (7)

Country Link
US (1) US4177387A (es)
JP (1) JPS54106706A (es)
CA (1) CA1114039A (es)
CH (1) CH642718A5 (es)
DE (1) DE2900336C2 (es)
ES (1) ES476628A1 (es)
IT (1) IT1109942B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4280060A (en) * 1980-06-09 1981-07-21 General Electric Company Dedicated microcomputer-based control system for steam turbine-generators
US4368520A (en) * 1980-09-29 1983-01-11 Westinghouse Electric Corp. Steam turbine generator control system
US4791309A (en) * 1982-09-21 1988-12-13 Thamesmead Engineering Limited Electrical control systems
US4635209A (en) * 1984-10-31 1987-01-06 Westinghouse Electric Corp. Overspeed protection control arrangement for a steam turbine generator control system
US4948331A (en) * 1989-07-31 1990-08-14 General Electric Company High pressure industrial turbine casing
US6767178B2 (en) * 2002-12-31 2004-07-27 Compressor Controls Corporation Response time of a steam turbine speed-control system
FR2968706A1 (fr) * 2010-12-10 2012-06-15 Alstom Technology Ltd Circuit d'alimentation en vapeur d'une turbine
CN102654064B (zh) * 2012-05-15 2015-03-11 西安陕鼓动力股份有限公司 一种双进汽冷凝式汽轮机蒸汽切换的控制方法
CN103147802B (zh) * 2013-02-06 2015-03-11 西安陕鼓动力股份有限公司 一种尾气透平进口冷却空气与工艺尾气切换的控制方法
US9158307B2 (en) * 2013-05-20 2015-10-13 General Electric Company System and method for feed-forward valve test compensation
CN105443173B (zh) * 2014-08-26 2017-05-24 沈阳鼓风机集团自动控制系统工程有限公司 用于pta装置能量回收的机组控制系统及控制方法
US10260378B2 (en) * 2016-09-29 2019-04-16 General Electric Company Systems and methods for controlling flow valves in a turbine
CN109356674A (zh) * 2018-12-25 2019-02-19 大庆特博科技发展有限公司 一种可调喷嘴数量的有机工质透平

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3097488A (en) * 1961-11-03 1963-07-16 Gen Electric Turbine control system
US3403892A (en) * 1967-01-12 1968-10-01 Gen Electric Full arc-partial arc transfer system for electrohydraulic turbine control
US3637319A (en) * 1969-12-08 1972-01-25 Gen Electric Method for dual mode control changeover in a steam turbine
US3956897A (en) * 1975-01-27 1976-05-18 Westinghouse Electric Corporation Digital transfer control system for dual mode turbine operation
JPS5812443B2 (ja) * 1975-01-31 1983-03-08 株式会社東芝 タ−ビンセイギヨソウチ
US3981608A (en) * 1975-09-04 1976-09-21 Tokyo Shibaura Denki Kabushiki Kaisha Turbine control system
JPS5272005A (en) * 1975-10-22 1977-06-16 Hitachi Ltd Load control system for steam turbine

Also Published As

Publication number Publication date
JPS647202B2 (es) 1989-02-08
JPS54106706A (en) 1979-08-22
IT7919090A0 (it) 1979-01-05
IT1109942B (it) 1985-12-23
DE2900336C2 (de) 1983-04-14
US4177387A (en) 1979-12-04
CH642718A5 (de) 1984-04-30
DE2900336A1 (de) 1979-07-12
CA1114039A (en) 1981-12-08

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Legal Events

Date Code Title Description
MM4A Patent lapsed

Effective date: 19960506