EP2775096A3 - Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine - Google Patents

Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine Download PDF

Info

Publication number
EP2775096A3
EP2775096A3 EP14151870.4A EP14151870A EP2775096A3 EP 2775096 A3 EP2775096 A3 EP 2775096A3 EP 14151870 A EP14151870 A EP 14151870A EP 2775096 A3 EP2775096 A3 EP 2775096A3
Authority
EP
European Patent Office
Prior art keywords
steam
steam turbine
diffuser
flow
blade ring
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.)
Granted
Application number
EP14151870.4A
Other languages
English (en)
French (fr)
Other versions
EP2775096A2 (de
EP2775096B1 (de
Inventor
Andreas Mucha
Christoph Sporbert
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
Publication of EP2775096A2 publication Critical patent/EP2775096A2/de
Publication of EP2775096A3 publication Critical patent/EP2775096A3/de
Application granted granted Critical
Publication of EP2775096B1 publication Critical patent/EP2775096B1/de
Active 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
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F01D5/142—Shape, i.e. outer, aerodynamic form of the blades of successive rotor or stator blade-rows
    • F01D5/143—Contour of the outer or inner working fluid flow path wall, i.e. shroud or hub contour
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • F01D11/10—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using sealing fluid, e.g. steam
    • 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
    • F01D25/30—Exhaust heads, chambers, or the like
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Die Erfindung betrifft eine Diffusoranordnung (60) für ein Abdampfgehäuse (32) einer Dampfturbine (10), umfassend einen Diffusor (62) mit einem Einlassende (64) zur Aufnahme von Abdampf in Strömungsrichtung betrachtet hinter einem mit einem Deckband (60) versehenen Laufschaufelkranz (68) einer Endstufe (44) der Dampfturbine (10), und mit einer in Strömungsrichtung betrachtet divergierenden Ringwand (70), die einen in das Abdampfgehäuse (32) mündenden Diffusorströmungspfad begrenzt. Die Diffusoranordnung (60) ferner umfasst: eine mit Dampf versorgbare Ringnut (72) in der Ringwand (70), welche in Strömungsrichtung betrachtet an der Stelle des Laufschaufelkranzes (68) angeordnet ist; und eine am Einlassende (64) des Diffusors (62) in Umfangsrichtung umlaufend ausgebildete und in Axialrichtung entgegen der Strömungsrichtung in den Ringspalt (74) hineinragende Strömungsführungslippe (76) zur Aufteilung des eingeleiteten Dampfes einerseits in eine Sperrdampfströmung am Außenumfang des Laufschaufelkranzes (68) und andererseits in eine Grenzschichtströmung entlang der Ringwand (70).
EP14151870.4A 2013-03-08 2014-01-21 Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine Active EP2775096B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013204006.7A DE102013204006A1 (de) 2013-03-08 2013-03-08 Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine

Publications (3)

Publication Number Publication Date
EP2775096A2 EP2775096A2 (de) 2014-09-10
EP2775096A3 true EP2775096A3 (de) 2018-02-21
EP2775096B1 EP2775096B1 (de) 2018-10-31

Family

ID=50002503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14151870.4A Active EP2775096B1 (de) 2013-03-08 2014-01-21 Diffusoranordnung für ein Abdampfgehäuse einer Dampfturbine, sowie damit ausgestattete Dampfturbine

Country Status (2)

Country Link
EP (1) EP2775096B1 (de)
DE (1) DE102013204006A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3034784A1 (de) * 2014-12-19 2016-06-22 Siemens Aktiengesellschaft Kühlmöglichkeit für strömungsmaschinen
JP2018035676A (ja) * 2016-08-29 2018-03-08 三菱日立パワーシステムズ株式会社 タービン

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165802A (ja) * 1983-03-09 1984-09-19 Toshiba Corp 蒸気タ−ビン動翼シユラウドの冷却装置
WO2000049297A1 (de) * 1999-02-15 2000-08-24 Universität Stuttgart Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren
EP1970539A1 (de) * 2007-03-13 2008-09-17 Siemens Aktiengesellschaft Diffusoranordnung
US20120163969A1 (en) * 2010-12-23 2012-06-28 General Electric Company Turbine including exhaust hood

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012175328A1 (de) 2011-06-20 2012-12-27 Siemens Aktiengesellschaft Dampfturbinenanlage, umfassend eine dampfturbine und eine dreheinrichtung zum drehantrieb einer turbinenläuferwelle beim turbinenstart

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59165802A (ja) * 1983-03-09 1984-09-19 Toshiba Corp 蒸気タ−ビン動翼シユラウドの冷却装置
WO2000049297A1 (de) * 1999-02-15 2000-08-24 Universität Stuttgart Diffusor ohne pulsation der stoss-grenzschicht und verfahren zum unterdrücken der stoss-grenzschicht-pulsation von diffusoren
EP1970539A1 (de) * 2007-03-13 2008-09-17 Siemens Aktiengesellschaft Diffusoranordnung
US20120163969A1 (en) * 2010-12-23 2012-06-28 General Electric Company Turbine including exhaust hood

Also Published As

Publication number Publication date
EP2775096A2 (de) 2014-09-10
DE102013204006A1 (de) 2014-09-11
EP2775096B1 (de) 2018-10-31

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