EP1998014A3 - Method for operating a multi-stage steam turbine - Google Patents

Method for operating a multi-stage steam turbine Download PDF

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Publication number
EP1998014A3
EP1998014A3 EP07003922A EP07003922A EP1998014A3 EP 1998014 A3 EP1998014 A3 EP 1998014A3 EP 07003922 A EP07003922 A EP 07003922A EP 07003922 A EP07003922 A EP 07003922A EP 1998014 A3 EP1998014 A3 EP 1998014A3
Authority
EP
European Patent Office
Prior art keywords
steam turbine
operating
stage steam
component
stage
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.)
Withdrawn
Application number
EP07003922A
Other languages
German (de)
French (fr)
Other versions
EP1998014A2 (en
Inventor
Stefan Glos
Matthias Heue
Ernst-Wilhelm Pfitzinger
Norbert Pieper
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.)
Siemens AG
Original Assignee
Siemens AG
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 AG filed Critical Siemens AG
Priority to EP07003922A priority Critical patent/EP1998014A3/en
Priority to EP08709020A priority patent/EP2129879A2/en
Priority to PCT/EP2008/051834 priority patent/WO2008104465A2/en
Priority to US12/528,349 priority patent/US8713941B2/en
Priority to JP2009550265A priority patent/JP5066194B2/en
Priority to CN2008800062161A priority patent/CN101622424B/en
Publication of EP1998014A2 publication Critical patent/EP1998014A2/en
Publication of EP1998014A3 publication Critical patent/EP1998014A3/en
Priority to US14/176,419 priority patent/US20140150431A1/en
Withdrawn legal-status Critical Current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
    • 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
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/28—Selecting particular materials; Particular measures relating thereto; Measures against erosion or corrosion
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/12—Cooling
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/08—Cooling; Heating; Heat-insulation
    • F01D25/14—Casings modified therefor
    • 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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/26—Double casings; Measures against temperature strain in casings
    • 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
    • F01K13/006—Auxiliaries or details not otherwise provided for
    • 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
    • F01K13/025—Cooling the interior by injection during idling or stand-by
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/31—Application in turbines in steam turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2260/00—Function
    • F05D2260/20—Heat transfer, e.g. cooling
    • F05D2260/232—Heat transfer, e.g. cooling characterized by the cooling medium

Abstract

Die Erfindung betrifft ein Verfahren zum Betreiben einer mehrstufigen Dampfturbine (4, 5, 6), wobei die Dampfturbine (4, 5, 6) für hohe Temperaturen geeignet ist, wobei der Rotor (27) als Schweißkonstruktion mit einer ersten Komponente (33) und einer zweiten Komponente (34) ausgeführt wird und der Dampfturbine (4, 5, 6) nach einer Zwischenstufe (14) ein Kühlmedium zugeführt wird, wenn die Dampfturbine (4, 5, 6) im Schwachlastbetrieb oder im Leerlaufbetrieb sich befindet. Dadurch werden die thermischen Belastungen im Abströmbereich (32) der Dampfturbine (4, 5, 6) gesenkt.

Figure imgaf001
The invention relates to a method for operating a multi-stage steam turbine (4, 5, 6), wherein the steam turbine (4, 5, 6) is suitable for high temperatures, wherein the rotor (27) as a welded construction with a first component (33) and a second component (34) is performed and the steam turbine (4, 5, 6) after an intermediate stage (14) is supplied to a cooling medium when the steam turbine (4, 5, 6) is in low load operation or in idling mode. As a result, the thermal loads in the outflow region (32) of the steam turbine (4, 5, 6) are lowered.
Figure imgaf001
EP07003922A 2007-02-26 2007-02-26 Method for operating a multi-stage steam turbine Withdrawn EP1998014A3 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP07003922A EP1998014A3 (en) 2007-02-26 2007-02-26 Method for operating a multi-stage steam turbine
EP08709020A EP2129879A2 (en) 2007-02-26 2008-02-15 Method for operating a multi-step steam turbine
PCT/EP2008/051834 WO2008104465A2 (en) 2007-02-26 2008-02-15 Method for operating a multi-step steam turbine
US12/528,349 US8713941B2 (en) 2007-02-26 2008-02-15 Method for operating a multi-step steam turbine
JP2009550265A JP5066194B2 (en) 2007-02-26 2008-02-15 Operation method of multi-stage steam turbine
CN2008800062161A CN101622424B (en) 2007-02-26 2008-02-15 Method for operating multi-stage steam turbine
US14/176,419 US20140150431A1 (en) 2007-02-26 2014-02-10 Steam power plant having a multi-stage steam turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07003922A EP1998014A3 (en) 2007-02-26 2007-02-26 Method for operating a multi-stage steam turbine

Publications (2)

Publication Number Publication Date
EP1998014A2 EP1998014A2 (en) 2008-12-03
EP1998014A3 true EP1998014A3 (en) 2008-12-31

Family

ID=39721643

Family Applications (2)

Application Number Title Priority Date Filing Date
EP07003922A Withdrawn EP1998014A3 (en) 2007-02-26 2007-02-26 Method for operating a multi-stage steam turbine
EP08709020A Withdrawn EP2129879A2 (en) 2007-02-26 2008-02-15 Method for operating a multi-step steam turbine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP08709020A Withdrawn EP2129879A2 (en) 2007-02-26 2008-02-15 Method for operating a multi-step steam turbine

Country Status (5)

Country Link
US (2) US8713941B2 (en)
EP (2) EP1998014A3 (en)
JP (1) JP5066194B2 (en)
CN (1) CN101622424B (en)
WO (1) WO2008104465A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008033402A1 (en) * 2008-07-16 2010-01-21 Siemens Aktiengesellschaft Steam turbine plant and method for operating a steam turbine
EP2147896A1 (en) * 2008-07-22 2010-01-27 Uhde GmbH Low energy process for the production of ammonia or methanol
JP5615150B2 (en) * 2010-12-06 2014-10-29 三菱重工業株式会社 Nuclear power plant and method of operating nuclear power plant
EP2565401A1 (en) * 2011-09-05 2013-03-06 Siemens Aktiengesellschaft Method for temperature balance in a steam turbine
EP2647802A1 (en) * 2012-04-04 2013-10-09 Siemens Aktiengesellschaft Power plant and method for operating a power plant assembly
EP2657467A1 (en) * 2012-04-27 2013-10-30 Siemens Aktiengesellschaft Forced cooling for steam turbine assemblies
CN103089346B (en) * 2012-12-28 2015-02-18 东方电气集团东方汽轮机有限公司 Forced cooling system of steam turbine generator set
EP3015644B1 (en) * 2014-10-29 2018-12-12 General Electric Technology GmbH Steam turbine rotor
CN106194284B (en) * 2016-07-22 2017-07-28 东方电气集团东方汽轮机有限公司 A kind of method of the parameter adjustment of steam turbine jacket steam and operation
DE102018219374A1 (en) * 2018-11-13 2020-05-14 Siemens Aktiengesellschaft Steam turbine and method of operating the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD148367A1 (en) * 1979-12-29 1981-05-20 Karl Speicher DEVICE FOR OVERCRANCHING A STEAM TURBINE AFTER LOAD DISTANCE
US4498301A (en) * 1982-02-17 1985-02-12 Hitachi, Ltd. Cooling device of steam turbine
WO1998012421A1 (en) * 1996-09-19 1998-03-26 Siemens Westinghouse Power Corporation Closed loop steam cooled steam turbine
DE19823251C1 (en) * 1998-05-26 1999-07-08 Siemens Ag Steam turbine low-pressure stage cooling method e.g. for power station turbines
EP1473442A2 (en) * 2003-04-30 2004-11-03 Kabushiki Kaisha Toshiba Steam turbine, steam turbine plant and method of operating a steam turbine in a steam turbine plant
EP1674669A1 (en) * 2004-12-21 2006-06-28 Siemens Aktiengesellschaft Method of cooling a steam turbine

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3898842A (en) * 1972-01-27 1975-08-12 Westinghouse Electric Corp Electric power plant system and method for operating a steam turbine especially of the nuclear type with electronic reheat control of a cycle steam reheater
JPH0621521B2 (en) * 1983-06-10 1994-03-23 株式会社日立製作所 Main structure of steam turbine main steam inlet
DE4129518A1 (en) * 1991-09-06 1993-03-11 Siemens Ag COOLING A LOW-BRIDGE STEAM TURBINE IN VENTILATION OPERATION
JP2990985B2 (en) * 1992-12-16 1999-12-13 富士電機株式会社 Steam turbine blade temperature rise prevention device
JPH0849507A (en) * 1994-08-09 1996-02-20 Fuji Electric Co Ltd Internal cooling method for bleeder turbine
DE19506787B4 (en) * 1995-02-27 2004-05-06 Alstom Process for operating a steam turbine
EP1152125A1 (en) * 2000-05-05 2001-11-07 Siemens Aktiengesellschaft Method and apparatus for the cooling of the inlet part of the axis of a steam turbine
JP5049578B2 (en) * 2006-12-15 2012-10-17 株式会社東芝 Steam turbine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD148367A1 (en) * 1979-12-29 1981-05-20 Karl Speicher DEVICE FOR OVERCRANCHING A STEAM TURBINE AFTER LOAD DISTANCE
US4498301A (en) * 1982-02-17 1985-02-12 Hitachi, Ltd. Cooling device of steam turbine
WO1998012421A1 (en) * 1996-09-19 1998-03-26 Siemens Westinghouse Power Corporation Closed loop steam cooled steam turbine
DE19823251C1 (en) * 1998-05-26 1999-07-08 Siemens Ag Steam turbine low-pressure stage cooling method e.g. for power station turbines
EP1473442A2 (en) * 2003-04-30 2004-11-03 Kabushiki Kaisha Toshiba Steam turbine, steam turbine plant and method of operating a steam turbine in a steam turbine plant
EP1674669A1 (en) * 2004-12-21 2006-06-28 Siemens Aktiengesellschaft Method of cooling a steam turbine

Also Published As

Publication number Publication date
WO2008104465A3 (en) 2009-01-29
EP2129879A2 (en) 2009-12-09
US8713941B2 (en) 2014-05-06
US20110005224A1 (en) 2011-01-13
CN101622424B (en) 2013-06-19
CN101622424A (en) 2010-01-06
JP5066194B2 (en) 2012-11-07
JP2010519452A (en) 2010-06-03
EP1998014A2 (en) 2008-12-03
WO2008104465A2 (en) 2008-09-04
US20140150431A1 (en) 2014-06-05

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