EP2128387A3 - Verfahren zur Verringerung oder Vermeidung der Tropfenschlagerosion in Dampfturbinen und zugehörige Dampfturbine - Google Patents

Verfahren zur Verringerung oder Vermeidung der Tropfenschlagerosion in Dampfturbinen und zugehörige Dampfturbine Download PDF

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Publication number
EP2128387A3
EP2128387A3 EP09161201A EP09161201A EP2128387A3 EP 2128387 A3 EP2128387 A3 EP 2128387A3 EP 09161201 A EP09161201 A EP 09161201A EP 09161201 A EP09161201 A EP 09161201A EP 2128387 A3 EP2128387 A3 EP 2128387A3
Authority
EP
European Patent Office
Prior art keywords
reducing
steam turbine
water drop
drops
avoiding water
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Withdrawn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
EP09161201A
Other languages
English (en)
French (fr)
Other versions
EP2128387A2 (de
Inventor
Thomas Hammer
Tetsuo Kishimoto
Norbert Sürken
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
Siemens Corp
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, Siemens Corp filed Critical Siemens AG
Publication of EP2128387A2 publication Critical patent/EP2128387A2/de
Publication of EP2128387A3 publication Critical patent/EP2128387A3/de
Withdrawn legal-status Critical Current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
    • 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
    • F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
    • 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
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F05D2240/122—Fluid guiding means, e.g. vanes related to the trailing edge of a stator vane
    • 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
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/304—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor related to the trailing edge of a rotor blade
    • 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
    • F05D2260/95—Preventing corrosion
    • 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
    • F05D2270/00—Control
    • F05D2270/01—Purpose of the control system
    • F05D2270/11—Purpose of the control system to prolong engine life
    • F05D2270/114—Purpose of the control system to prolong engine life by limiting mechanical stresses
    • 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
    • F05D2270/00—Control
    • F05D2270/60—Control system actuates means
    • F05D2270/62—Electrical actuators

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Eine Dampfturbine enthält Leitschaufeln und anschließende Laufschaufeln, an denen Flüssigkeit aus dem Dampfstrom kondensiert und als Tröpfchen abgeschieden werden. Dabei entstehen kleine Primärtropfen und größere Sekundärtropfen. Gemäß der Erfindung werden die Sekundärtropfen am Ort der Entstehung in unmittelbarer Nähe dazu zerkleinert, durch die dann besser beschleunigbaren entstandenen kleineren Tröpfchen wird die durch den Tropfenschlag verursachte Erosion verhindert oder zumindest stark vermindert. Die Sekundärtropfen werden auf mechanische Weise, insbesondere durch Ultraschall, zerkleinert.
EP09161201A 2008-05-30 2009-05-27 Verfahren zur Verringerung oder Vermeidung der Tropfenschlagerosion in Dampfturbinen und zugehörige Dampfturbine Withdrawn EP2128387A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE200810026036 DE102008026036A1 (de) 2008-05-30 2008-05-30 Verfahren zur Verringerung oder Vermeidung der Tropfenschlagerosion in einer Dampfturbine und zugehörige Dampfturbine

Publications (2)

Publication Number Publication Date
EP2128387A2 EP2128387A2 (de) 2009-12-02
EP2128387A3 true EP2128387A3 (de) 2012-05-30

Family

ID=40848277

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09161201A Withdrawn EP2128387A3 (de) 2008-05-30 2009-05-27 Verfahren zur Verringerung oder Vermeidung der Tropfenschlagerosion in Dampfturbinen und zugehörige Dampfturbine

Country Status (2)

Country Link
EP (1) EP2128387A3 (de)
DE (1) DE102008026036A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009056839A1 (de) * 2009-12-03 2011-06-09 Siemens Aktiengesellschaft Verfahren zum Betrieb einer Dampfturbine, Dampfturbine und Zerstäuber
CN114776390B (zh) * 2022-04-21 2023-06-20 西安交通大学 一种基于超声波的末级静叶除湿结构
CN115400505B (zh) * 2022-09-29 2023-08-22 常州大学 一种基于二次夹带抑制器的除雾叶片
CN116401834B (zh) * 2023-03-17 2024-02-13 中国民航大学 飞机的水滴撞击特性计算方法及装置、设备、存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923415A (en) * 1974-06-13 1975-12-02 Westinghouse Electric Corp Steam turbine erosion reduction by ultrasonic energy generation
JPS61106901A (ja) * 1984-10-31 1986-05-24 Hitachi Ltd 蒸気タ−ビン翼列装置
JPS62251405A (ja) * 1986-04-25 1987-11-02 Hitachi Ltd 蒸気タ−ビンの水滴微細化装置
JPH04284103A (ja) * 1991-03-11 1992-10-08 Mitsubishi Heavy Ind Ltd 回転機械の静翼構造

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH502849A (de) * 1969-05-23 1971-02-15 Mitsubishi Heavy Ind Ltd Verfahren und Vorrichtung zur Erzeugung von pulsierenden Kräften an von einem Rotationskörper abstehenden Teilen
US5867977A (en) * 1996-05-14 1999-02-09 The Dow Chemical Company Method and apparatus for achieving power augmentation in gas turbines via wet compression

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3923415A (en) * 1974-06-13 1975-12-02 Westinghouse Electric Corp Steam turbine erosion reduction by ultrasonic energy generation
JPS61106901A (ja) * 1984-10-31 1986-05-24 Hitachi Ltd 蒸気タ−ビン翼列装置
JPS62251405A (ja) * 1986-04-25 1987-11-02 Hitachi Ltd 蒸気タ−ビンの水滴微細化装置
JPH04284103A (ja) * 1991-03-11 1992-10-08 Mitsubishi Heavy Ind Ltd 回転機械の静翼構造

Also Published As

Publication number Publication date
EP2128387A2 (de) 2009-12-02
DE102008026036A1 (de) 2009-12-03

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