WO2013000720A3 - Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant - Google Patents

Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant Download PDF

Info

Publication number
WO2013000720A3
WO2013000720A3 PCT/EP2012/061278 EP2012061278W WO2013000720A3 WO 2013000720 A3 WO2013000720 A3 WO 2013000720A3 EP 2012061278 W EP2012061278 W EP 2012061278W WO 2013000720 A3 WO2013000720 A3 WO 2013000720A3
Authority
WO
WIPO (PCT)
Prior art keywords
steam
power plant
preheater
energetic
steam power
Prior art date
Application number
PCT/EP2012/061278
Other languages
German (de)
French (fr)
Other versions
WO2013000720A2 (en
Inventor
Wolfgang WIESENMÜLLER
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP12729098.9A priority Critical patent/EP2712393A2/en
Priority to RU2014102615/06A priority patent/RU2014102615A/en
Priority to CN201280031673.2A priority patent/CN103717846B/en
Publication of WO2013000720A2 publication Critical patent/WO2013000720A2/en
Publication of WO2013000720A3 publication Critical patent/WO2013000720A3/en

Links

Classifications

    • 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
    • F01K13/00—General layout or general methods of operation of complete plants
    • F01K13/02—Controlling, e.g. stopping or starting
    • 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
    • F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
    • F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
    • 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
    • F01K7/16—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 only of turbine type
    • F01K7/22—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 only of turbine type the turbines having inter-stage steam heating
    • 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
    • F01K7/40—Use of two or more feed-water heaters in series

Abstract

The invention relates to an extraction method for a preheater of a steam power plant and to a water-steam circuit in a steam power plant. According to the invention, a higher-energetic steam is tapped on a turbine of the steam power plant and is admixed to a lower-energetic steam which is tapped on the turbine. The steam mixture of the lower-energetic steam and the admixed higher-energetic steam is fed to a preheater, in particular a high-pressure preheater, especially a last high-pressure preheating stage of the high-pressure preheater of the steam power plant, particularly for heating feed water flowing through the preheater. By an in particular regulated and/or controlled admixing of the higher-energetic steam to the lower-energetic steam (controlled extraction), a fast power change can be achieved in the steam power plant, particularly in part-load operation of the steam power plant, by changing the temperature of the lower-energetic steam.
PCT/EP2012/061278 2011-06-28 2012-06-14 Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant WO2013000720A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP12729098.9A EP2712393A2 (en) 2011-06-28 2012-06-14 Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant
RU2014102615/06A RU2014102615A (en) 2011-06-28 2012-06-14 ADDITIONAL ADJUSTABLE STEAM SELECTION FOR A HEATER IN ORDER TO IMPROVE THE EQUIPMENT DYNAMICS AND FREQUENCY REGULATION AT A POWER STATION
CN201280031673.2A CN103717846B (en) 2011-06-28 2012-06-14 The additional control for preheater for improvement of the equipment dynamic performance in steam power station and FREQUENCY CONTROL is drawn gas

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110078193 DE102011078193A1 (en) 2011-06-28 2011-06-28 Additional control tap for a preheater to improve the system dynamics and frequency control in a steam power plant
DE102011078193.5 2011-06-28

Publications (2)

Publication Number Publication Date
WO2013000720A2 WO2013000720A2 (en) 2013-01-03
WO2013000720A3 true WO2013000720A3 (en) 2013-12-19

Family

ID=46331293

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/061278 WO2013000720A2 (en) 2011-06-28 2012-06-14 Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant

Country Status (5)

Country Link
EP (1) EP2712393A2 (en)
CN (1) CN103717846B (en)
DE (1) DE102011078193A1 (en)
RU (1) RU2014102615A (en)
WO (1) WO2013000720A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2876266A1 (en) * 2013-11-21 2015-05-27 Siemens Aktiengesellschaft Arrangement for removal of steam from a steam turbine
DE102018100712A1 (en) 2018-01-15 2019-07-18 Deutsches Zentrum für Luft- und Raumfahrt e.V. Steam power plant and method for operating a steam power plant
EP3810906A1 (en) * 2018-09-27 2021-04-28 Siemens Energy Global GmbH & Co. KG Turbomachine system and method for operating a turbomachine system
CN109653819B (en) * 2019-01-24 2023-10-24 中国电力工程顾问集团东北电力设计院有限公司 Deep peak-shaving steam turbine system of cogeneration unit and control method
CN110645062A (en) * 2019-10-31 2020-01-03 大唐郓城发电有限公司 Double-machine regenerative system participating in primary frequency modulation and operation method thereof
CN115218245B (en) * 2022-07-21 2023-07-28 西安热工研究院有限公司 Control method and system for improving flexibility of unit through heat supply and steam extraction throttling

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238729A (en) * 1962-07-23 1966-03-08 Ass Elect Ind Steam turbine power plants
DE3616797A1 (en) * 1986-05-17 1987-11-19 Koerting Ag Steam turbine system
US5404724A (en) * 1994-04-07 1995-04-11 Westinghouse Electric Corporation Boiler feedpump turbine drive/feedwater train arrangement
DE19535318A1 (en) * 1995-09-22 1997-03-27 Steag Ag Method and arrangement for preheating the feed water of a steam generator in power plant processes
EP0773348A1 (en) * 1995-11-08 1997-05-14 Steag Ag Process and apparatus for heating the main condensate in a power plant
US20110220744A1 (en) * 2010-03-09 2011-09-15 Xu Zhao Process for reducing coal consumption in coal fired power plant with fluidized-bed drying

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE563973C (en) * 1931-03-15 1932-11-11 Aeg Steam power plant with several auxiliary machines driven by live steam
JP3847962B2 (en) * 1997-07-30 2006-11-22 株式会社東芝 Power plant heating water heating system
CN100354504C (en) * 2005-12-28 2007-12-12 上海电力学院 Multi-grade using backheating drain residual heat generator of thermal power generator set
CN101650022B (en) * 2009-08-21 2011-09-21 上海电力学院 Steam turbine interstage back-heating heater cross-class connecting system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238729A (en) * 1962-07-23 1966-03-08 Ass Elect Ind Steam turbine power plants
DE3616797A1 (en) * 1986-05-17 1987-11-19 Koerting Ag Steam turbine system
US5404724A (en) * 1994-04-07 1995-04-11 Westinghouse Electric Corporation Boiler feedpump turbine drive/feedwater train arrangement
DE19535318A1 (en) * 1995-09-22 1997-03-27 Steag Ag Method and arrangement for preheating the feed water of a steam generator in power plant processes
EP0773348A1 (en) * 1995-11-08 1997-05-14 Steag Ag Process and apparatus for heating the main condensate in a power plant
US20110220744A1 (en) * 2010-03-09 2011-09-15 Xu Zhao Process for reducing coal consumption in coal fired power plant with fluidized-bed drying

Also Published As

Publication number Publication date
DE102011078193A1 (en) 2013-01-03
WO2013000720A2 (en) 2013-01-03
EP2712393A2 (en) 2014-04-02
CN103717846B (en) 2015-11-25
CN103717846A (en) 2014-04-09
RU2014102615A (en) 2015-08-10

Similar Documents

Publication Publication Date Title
WO2013000720A3 (en) Additional controlled extraction for a preheater for improving the plant dynamics and the frequency regulation in a steam power plant
WO2015187235A3 (en) Gas turbine air injection system control and method of operation
IN2014DE01798A (en)
WO2012168074A3 (en) Method for operating a recirculating waste heat steam generator
WO2013110375A3 (en) Device and method for generating electrical energy
BR112016012681A2 (en) COMPLEX OF STEEL PRODUCTION PLANT AND METHOD FOR OPERATING THE PLANT COMPLEX
WO2012150008A3 (en) Control system for matching the output of a steam turbine to a changed load
WO2016100008A3 (en) Power plant combining magnetohydrodynamic generator and gas turbine
WO2014026995A3 (en) System and method for temperature control of reheated steam
WO2013007462A3 (en) Steam turbine installation and method for operating the steam turbine installation
MX2014008546A (en) Method and device for producing nitric acid.
MA34110B1 (en) METHOD FOR INCREASING THE PERFORMANCE OF A CENTRAL EQUIPPED WITH A GAS TURBINE AND A CENTRAL UNIT FOR CARRYING OUT THE METHOD
BR112014015227A2 (en) multistage process for producing a hydrogen-containing gaseous fuel and thermal gas-fired power plant
WO2011148153A3 (en) Steam generator for combined cycle gas turbine plant
MY193574A (en) Turbine system and method
MY189286A (en) A method for revamping an ammonia plant
WO2013135760A3 (en) Power regulation and/or frequency regulation in a solar thermal steam power plant
WO2015039831A3 (en) Combined cycle gas turbine plant comprising a waste heat steam generator and fuel preheating step
WO2013121317A3 (en) Plant and method for increasing the efficiency of electric energy production
WO2013072464A3 (en) Method and device for controlling a temperature of steam for a steam power plant
MY162835A (en) Method for operating plant for producing mixed-gas hydrate
WO2014095337A3 (en) Draining a power plant
WO2015028366A3 (en) Operating method for an externally heated once-through steam generator
WO2013010763A3 (en) Low-pressure increased output preheater for the frequency control or secondary and/or primary control in a solar thermal power plant
WO2013065031A3 (en) Method of controlling a combined - cycle plant for production of electric energy and combined -cycle plant for production of electric energy

Legal Events

Date Code Title Description
REEP Request for entry into the european phase

Ref document number: 2012729098

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012729098

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2014102615

Country of ref document: RU

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12729098

Country of ref document: EP

Kind code of ref document: A2