EP2396514B1 - Procédé de chauffage d'un arbre de turbine - Google Patents

Procédé de chauffage d'un arbre de turbine Download PDF

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Publication number
EP2396514B1
EP2396514B1 EP10702463.0A EP10702463A EP2396514B1 EP 2396514 B1 EP2396514 B1 EP 2396514B1 EP 10702463 A EP10702463 A EP 10702463A EP 2396514 B1 EP2396514 B1 EP 2396514B1
Authority
EP
European Patent Office
Prior art keywords
water
turbine shaft
turbine
injection
steam
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.)
Not-in-force
Application number
EP10702463.0A
Other languages
German (de)
English (en)
Other versions
EP2396514A1 (fr
Inventor
Matthias Heue
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 EP10702463.0A priority Critical patent/EP2396514B1/fr
Publication of EP2396514A1 publication Critical patent/EP2396514A1/fr
Application granted granted Critical
Publication of EP2396514B1 publication Critical patent/EP2396514B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01D19/00—Starting of machines or engines; Regulating, controlling, or safety means in connection therewith
    • 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
    • F01D25/10—Heating, e.g. warming-up before 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
    • F01D5/02—Blade-carrying members, e.g. rotors
    • F01D5/08—Heating, heat-insulating or cooling means
    • 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
    • F05D2260/2322—Heat transfer, e.g. cooling characterized by the cooling medium steam
    • 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
    • F05D2260/85—Starting

Definitions

  • the invention relates to a method for heating a turbine shaft and a steam turbine comprising a turbine shaft and a device for heating the turbine shaft.
  • the invention begins, whose task is to provide a method and a steam turbine, which can be heated quickly.
  • the turbine shaft is a large component with a high mass and thus a comparatively high heat capacity. This leads to the fact that the turbine shaft is heated comparatively slowly with an energy supply.
  • An essential idea of the invention is to heat the turbine shaft faster by injecting warm water onto the turbine shaft. By this water injection takes place a rapid heat transfer of the warm water to the turbine shaft.
  • the term water is here understood to mean liquid in its state of aggregation.
  • the turbine shaft is heated by the water injection before it is struck. This means that already at a very early stage, the turbine shaft is heated as a result of water injection.
  • the steam turbine usually has so-called housing drainages, which are of course opened, while the turbine shaft is splashed with water. If the pressure in the steam turbine is below the pressure of the injected water, the injected water will evaporate. In the subsequent condensation of the injected water to the cold components, the desired heating is achieved. As a result, the turbine shaft heats up faster and can reach the operating temperature earlier to be connected to an electrical supply network.
  • the turbine shaft is sprayed with water until a maximum Anürmformatiere is reached.
  • the maximum heating speed reaches values between 8 Hz and 25 Hz. Because of the water injection a permanent heat transfer to the turbine shaft. takes place, it is advantageous in that the water is continuously injected onto the turbine shaft until the turbine shaft has reached the maximum Aiz stiirmformatiere in the warm-up. The start-up time is thereby further shortened.
  • the warm water is taken from a feed pump to ensure the required steam purity, z. B. from a parallel vapor source.
  • a water vapor cycle is generally present in such a way that water from the feed pump is available.
  • injection nozzles are arranged within the steam turbine, via which the warm water is sprayed onto the turbine shaft.
  • the turbine shaft 1 shows a schematic representation of a turbine shaft 1, which is designed to be double-flow.
  • the turbine shaft 1 comprises a left-hand flood 2 and a right-hand flood 3.
  • the turbine shaft 1 rotates about the rotation axis 4.
  • live steam flows into the steam turbine via an inflow region (not shown) and relaxes along the left-hand flood 2 and the right-hand side Flood 3.
  • the turbine shaft 1 includes blades not shown in detail.
  • the turbine shaft 1 can heat to over 300 ° C. The temperatures can even reach values up to 630 ° C. After a standstill, the temperature of the turbine shaft 1 may be less than 100 ° C.
  • the warm water 5 may have temperatures between 100 ° C and 350 ° C.
  • the water is passed through a valve 7 to the injection nozzle 6. With the valve 7, the amount of water passing through a line 8 to the injection nozzle, 6, are regulated.
  • the turbine shaft 1 is hereby heated by the water injection before the abutment. This means that the turbine shaft 1 is already splashing with water during the turn operation, ie an externally supplied rotational movement via a motor becomes. However, care must be taken to ensure that the amount of water 5 spraying out of the injection nozzle 6 is constantly distributed over the surface of the turbine shaft 1, since otherwise local stresses may occur. Furthermore, the turbine shaft 1 is sprayed so long by means of the injection nozzles 6 with warm water 5 until a maximum Anürmformatiere is reached. The heating speed assumes values between 8 Hz and 25 Hz.
  • the valve 7 is fluidically coupled to a line 9, wherein the line 9 is fluidly coupled to a feed pump in a manner not shown.
  • the turbine shaft 1 is part of a steam turbine, not shown.
  • This steam turbine comprises a housing, wherein the injection nozzles 6 are arranged for injecting the water 5 within the housing.
  • the position of the injectors 6 and the flow rate of hot water 5 should be selected appropriately so that the heat transfer coefficient is optimal.
  • the steam turbine housing drainages which are designed such that water located in the housing can flow. These drain casings are opened during the heating process so that the water can drain off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Claims (8)

  1. Procédé d'échauffement d'un arbre (1) de turbine,
    dans lequel on échauffe l'arbre (1) de turbine par projection d'eau au moyen d'eau liquide,
    dans lequel l'eau (5) est avant la projection à l'état physique liquide,
    caractérisé en ce que
    on prélève de l'eau (5) chaude d'une pompe d'alimentation.
  2. Procédé suivant la revendication 1,
    dans lequel on fait tourner l'arbre (1) de turbine, pendant la projection d'eau, autour de son axe de révolution.
  3. Procédé suivant la revendication 2,
    dans lequel l'eau (5) a des températures comprises entre 100°C et 350°C.
  4. Procédé suivant les revendications 1, 2 ou 3,
    dans lequel on échauffe l'arbre (1) de turbine par la projection d'eau avant la mise en marche.
  5. Procédé suivant les revendications 1, 2 ou 3,
    dans lequel on échauffe l'arbre (1) de turbine par la projection d'eau, jusqu'à atteindre une vitesse de rotation maximum d'échauffement.
  6. Procédé suivant la revendication 5,
    dans lequel la vitesse de rotation maximum d'échauffement prend des valeurs comprises entre 8 Hz et 25 Hz.
  7. Turbine à vapeur comprenant un arbre (1) de turbine ayant une surface d'arbre de turbine et un dispositif de projection d'eau (5) liquide sur la surface de l'arbre de turbine, l'eau étant à l'état physique liquide avant la projection et une pompe d'alimentation étant prévue pour le prélèvement de l'eau (5).
  8. Turbine à vapeur suivant la revendication 7,
    comprenant un carter, dans laquelle des buses (6) de projection de l'eau (5) sont montées à l'intérieur du carter.
EP10702463.0A 2009-02-10 2010-01-25 Procédé de chauffage d'un arbre de turbine Not-in-force EP2396514B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10702463.0A EP2396514B1 (fr) 2009-02-10 2010-01-25 Procédé de chauffage d'un arbre de turbine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09001828A EP2216506A1 (fr) 2009-02-10 2009-02-10 Procédé de chauffage d'un arbre de turbine
PCT/EP2010/050800 WO2010091942A1 (fr) 2009-02-10 2010-01-25 Procédé de réchauffement d'un arbre de turbine
EP10702463.0A EP2396514B1 (fr) 2009-02-10 2010-01-25 Procédé de chauffage d'un arbre de turbine

Publications (2)

Publication Number Publication Date
EP2396514A1 EP2396514A1 (fr) 2011-12-21
EP2396514B1 true EP2396514B1 (fr) 2014-03-05

Family

ID=41053762

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09001828A Withdrawn EP2216506A1 (fr) 2009-02-10 2009-02-10 Procédé de chauffage d'un arbre de turbine
EP10702463.0A Not-in-force EP2396514B1 (fr) 2009-02-10 2010-01-25 Procédé de chauffage d'un arbre de turbine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09001828A Withdrawn EP2216506A1 (fr) 2009-02-10 2009-02-10 Procédé de chauffage d'un arbre de turbine

Country Status (5)

Country Link
US (1) US20110308251A1 (fr)
EP (2) EP2216506A1 (fr)
JP (1) JP2012517550A (fr)
CN (1) CN102317576A (fr)
WO (1) WO2010091942A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9359898B2 (en) 2012-04-19 2016-06-07 General Electric Company Systems for heating rotor disks in a turbomachine
FR3007459B1 (fr) * 2013-06-19 2016-10-14 Airbus Operations Sas Systeme et procede de mise en rotation d'un element rotatif d'un dispositif mecanique, en particulier d'une turbomachine.
JP6479386B2 (ja) 2014-09-26 2019-03-06 株式会社東芝 蒸気タービン
EP3029280B1 (fr) 2014-12-04 2023-02-08 General Electric Technology GmbH Procédé de démarrage d'une turbine à vapeur

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1230325A (fr) * 1969-03-05 1971-04-28
US4055048A (en) * 1976-08-20 1977-10-25 Reed Charles W Apparatus and method for side stream demineralization of condensate in a steam cycle
JPS5912105A (ja) * 1982-07-12 1984-01-21 Fuji Electric Co Ltd 再熱復水式蒸気タ−ビンの起動方式
JPS61237802A (ja) * 1985-04-12 1986-10-23 Hitachi Ltd 蒸気タ−ビンの暖機方法
JPS6267206A (ja) * 1985-09-20 1987-03-26 Hitachi Ltd 中圧タ−ビン暖機装置
JPS62159704A (ja) * 1986-01-09 1987-07-15 Mitsubishi Heavy Ind Ltd 蒸気タ−ビンの暖機方法
JPS63270410A (ja) * 1987-04-28 1988-11-08 Nkk Corp 低温物体の加熱方法
US5172553A (en) * 1992-01-21 1992-12-22 Westinghouse Electric Corp. Convective, temperature-equalizing system for minimizing cover-to-base turbine casing temperature differentials
US5433079A (en) * 1994-03-08 1995-07-18 General Electric Company Automated steam turbine startup method and apparatus therefor
US5498131A (en) * 1995-03-02 1996-03-12 General Electric Company Steam turbine with thermal stress reduction system
JPH09177755A (ja) * 1995-12-28 1997-07-11 Toshiba Corp 蒸気タービンのロータ加熱装置
JPH11190205A (ja) * 1997-12-25 1999-07-13 Mitsubishi Heavy Ind Ltd ロータ熱的安定性試験方法
US6311704B1 (en) * 2000-03-03 2001-11-06 Hydrochem Industrial Services Methods and apparatus for chemically cleaning turbines
JP2003035108A (ja) * 2001-07-24 2003-02-07 Fuji Electric Co Ltd 軸流排気式蒸気タービン
JP4723884B2 (ja) * 2005-03-16 2011-07-13 株式会社東芝 タービン起動制御装置およびその起動制御方法
EP1707739A1 (fr) * 2005-03-24 2006-10-04 Siemens Aktiengesellschaft Turbine à vapeur avec arbre creux refroidi et méthode de refroidissement correspondante

Also Published As

Publication number Publication date
EP2216506A1 (fr) 2010-08-11
CN102317576A (zh) 2012-01-11
EP2396514A1 (fr) 2011-12-21
JP2012517550A (ja) 2012-08-02
US20110308251A1 (en) 2011-12-22
WO2010091942A1 (fr) 2010-08-19

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