CL2021000370A1 - Control device for power plant, control method and control program for this, and power plant - Google Patents

Control device for power plant, control method and control program for this, and power plant

Info

Publication number
CL2021000370A1
CL2021000370A1 CL2021000370A CL2021000370A CL2021000370A1 CL 2021000370 A1 CL2021000370 A1 CL 2021000370A1 CL 2021000370 A CL2021000370 A CL 2021000370A CL 2021000370 A CL2021000370 A CL 2021000370A CL 2021000370 A1 CL2021000370 A1 CL 2021000370A1
Authority
CL
Chile
Prior art keywords
power plant
economizer
control
supplied
limit temperature
Prior art date
Application number
CL2021000370A
Other languages
Spanish (es)
Inventor
Akito Yoshida
Yuichi Iwamoto
Original Assignee
Mitsubishi Power Ltd
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 Mitsubishi Power Ltd filed Critical Mitsubishi Power Ltd
Publication of CL2021000370A1 publication Critical patent/CL2021000370A1/en

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/38—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Control Of Turbines (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

Un objetivo de la presente invención es proporcionar un dispositivo de control de planta de energía, un método de control y un programa de control para esto, y una planta de energía, con la que puede mejorarse la eficacia de generación de energía de toda la planta mientras se mantiene un funcionamiento estable. Un dispositivo de control (20) para una planta de energía (1) en el que se suministra agua de alimentación calentada en un calentador de agua de alimentación (3) a una caldera (5) a través de un economizador (4) incluye una unidad de establecimiento del límite superior para calcular, sobre la base de un estado de agua caliente en el lado de salida del economizador (4), una temperatura límite en la que no se produce un fenómeno de vaporización en el economizador (4), y, sobre la base de la temperatura límite, establecer una temperatura límite superior para el agua de alimentación suministrada al economizador (4); y una unidad de control de suministro para controlar el suministro de vapor de extracción suministrado al calentador de agua de alimentación (3) desde una turbina de vapor (13) de tal manera que la temperatura del agua de alimentación suministrada al economizador (4) se aproxima a la temperatura límite superior.An object of the present invention is to provide a power plant control device, a control method and a control program for this, and a power plant, with which the power generation efficiency of the whole plant can be improved. while maintaining stable operation. A control device (20) for a power plant (1) in which feed water heated in a feed water heater (3) is supplied to a boiler (5) through an economizer (4) includes a unit for setting the upper limit to calculate, based on a state of hot water on the outlet side of the economizer (4), a limit temperature at which a vaporization phenomenon does not occur in the economizer (4), and , based on the limit temperature, establish an upper limit temperature for the feed water supplied to the economizer (4); and a supply control unit for controlling the supply of stripping steam supplied to the feedwater heater (3) from a steam turbine (13) such that the temperature of the feedwater supplied to the economizer (4) is approaches the upper limit temperature.

CL2021000370A 2018-10-15 2021-02-11 Control device for power plant, control method and control program for this, and power plant CL2021000370A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2018194263A JP6553271B1 (en) 2018-10-15 2018-10-15 CONTROL DEVICE FOR POWER PLANT, CONTROL METHOD THEREOF, CONTROL PROGRAM, AND POWER PLANT

Publications (1)

Publication Number Publication Date
CL2021000370A1 true CL2021000370A1 (en) 2021-07-02

Family

ID=67473411

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2021000370A CL2021000370A1 (en) 2018-10-15 2021-02-11 Control device for power plant, control method and control program for this, and power plant

Country Status (4)

Country Link
JP (1) JP6553271B1 (en)
CN (1) CN112567110B (en)
CL (1) CL2021000370A1 (en)
WO (1) WO2020080083A1 (en)

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158511U (en) * 1984-09-20 1986-04-19
JPS61205309A (en) * 1985-03-08 1986-09-11 Hitachi Ltd Protective operating method and its device of feed water heater
JPH07122485B2 (en) * 1986-01-13 1995-12-25 株式会社日立製作所 Steamer steam prevention device for once-through thermal power generation boiler system
JPH0953414A (en) * 1995-08-09 1997-02-25 Mitsubishi Heavy Ind Ltd Turbine steam extraction control device
JPH09126409A (en) * 1995-11-01 1997-05-16 Babcock Hitachi Kk Method and device for temperature control of feed-water heater
JP3890104B2 (en) * 1997-01-31 2007-03-07 株式会社東芝 Combined cycle power plant and steam supply method for cooling the same
JP4017712B2 (en) * 1997-09-10 2007-12-05 バブコック日立株式会社 Method and apparatus for controlling temperature of feed water in exhaust heat recovery boiler
JP2000161606A (en) * 1998-11-27 2000-06-16 Ishikawajima Harima Heavy Ind Co Ltd Steaming prevention control method nd apparatus for coal saving apparatus
JP2005155340A (en) * 2003-11-20 2005-06-16 Toshiba Corp Steam turbine plant
US9091182B2 (en) * 2010-12-20 2015-07-28 Invensys Systems, Inc. Feedwater heater control system for improved rankine cycle power plant efficiency
JP5783458B2 (en) * 2011-10-14 2015-09-24 東京電力株式会社 Increased output operation method in steam power plant
EP2716880A1 (en) * 2012-10-05 2014-04-09 Alstom Technology Ltd Steam Power Plant with Steam Turbine Extraction Control
US20140202399A1 (en) * 2013-01-21 2014-07-24 Maarky Thermal Systems Inc. Dual end plate subcooling zone for a feedwater heater
JP2016065486A (en) * 2014-09-24 2016-04-28 株式会社東芝 Combined cycle power generation facility
JP2017072101A (en) * 2015-10-08 2017-04-13 株式会社東芝 Steam turbine system and its control method
CN106871102B (en) * 2016-12-28 2019-05-24 神华集团有限责任公司 The denitrating technique of full load
JP6224858B1 (en) * 2017-03-17 2017-11-01 三菱日立パワーシステムズ株式会社 Power plant and operation method thereof

Also Published As

Publication number Publication date
WO2020080083A1 (en) 2020-04-23
CN112567110A (en) 2021-03-26
JP6553271B1 (en) 2019-07-31
CN112567110B (en) 2023-06-20
JP2020063677A (en) 2020-04-23

Similar Documents

Publication Publication Date Title
CL2018001011A1 (en) Solar thermal power generation system and method to control it
BR112017003615A2 (en) Solar hot water thermal storage device and its auxiliary power plant boiler solar hot water supply system consisting of
EP2541021A3 (en) System for fuel gas moisturization and heating
MA32413B1 (en) Steam generating system equipped with auxiliary steam generators
JP2017082678A5 (en)
CL2017002581A1 (en) Single-pass steam generator of molten salt.
RU2016114849A (en) INTEGRATED FUEL GAS HEAT DISPOSAL SYSTEM
MY179676A (en) Power generation plant and operation method therefor
IN2014DE03194A (en)
JP2020085415A5 (en)
CL2021000370A1 (en) Control device for power plant, control method and control program for this, and power plant
ES2527353B1 (en) PLANT AND METHOD TO INCREASE THE EFFICIENCY OF ELECTRICAL ENERGY PRODUCTION
RU2010100481A (en) METHOD AND DEVICE FOR REDUCING HIGH VAPOR TEMPERATURES AT TURBINE INLET DUE TO Caused by CURRENT HEATING VORTEX FOR OPERATION OF TURBINES WITH THE MAXIMUM SPEED AT Idle
JP6516993B2 (en) Combined cycle plant and boiler steam cooling method
RU164974U1 (en) HEAT ELECTRIC STATION
RU2580852C1 (en) Boiler plant
RU2580768C2 (en) Method of electric power generation by thermal power station
RU2015127469A (en) METHOD FOR CONTROL OF HEAT ELECTRIC POWER STATION WITH THE help OF CONTROL VALVES
EP3473820A1 (en) Method and installation of cogenertion in heat plants, especially those equipped with water-tube boilers
RU2596072C1 (en) Thermal power plant
RU2629319C1 (en) Work method of combined heat-and-power station boiler plant
RU2537656C1 (en) Thermal power plant operation method
RU2580844C1 (en) Method for operation of heat-generating plant
CL2018000294A1 (en) Method to adjust steam generator pressure in solar power plant
JP2023061059A (en) Geothermal exchanger and geothermal power generator