EP2614222A1 - Élément suppresseur de tourbillonnement disposé dans l'écoulement de fuite d'une turbomachine - Google Patents

Élément suppresseur de tourbillonnement disposé dans l'écoulement de fuite d'une turbomachine

Info

Publication number
EP2614222A1
EP2614222A1 EP11757253.7A EP11757253A EP2614222A1 EP 2614222 A1 EP2614222 A1 EP 2614222A1 EP 11757253 A EP11757253 A EP 11757253A EP 2614222 A1 EP2614222 A1 EP 2614222A1
Authority
EP
European Patent Office
Prior art keywords
turbomachine
swirl
housing
rotor
swirl breaker
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
EP11757253.7A
Other languages
German (de)
English (en)
Other versions
EP2614222B1 (fr
Inventor
Andreas Biesen
Johan Flegler
Michael Kleinhaus
Joachim Schettel
Armin De Lazzer
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 EP11757253.7A priority Critical patent/EP2614222B1/fr
Publication of EP2614222A1 publication Critical patent/EP2614222A1/fr
Application granted granted Critical
Publication of EP2614222B1 publication Critical patent/EP2614222B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/02—Preventing or minimising internal leakage of working-fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type
    • 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
    • F01D5/22—Blade-to-blade connections, e.g. for damping vibrations
    • 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
    • F05D2240/126—Baffles or ribs
    • 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
    • F05D2260/231—Preventing heat transfer
    • 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
    • F05D2260/96—Preventing, counteracting or reducing vibration or noise

Definitions

  • the invention relates to a fluid machine with an rotatable about an axis of rotation mounted rotor and, arranged around the rotor housing, wherein the housing has a relative to the rotor in a circumferential direction formed housing inner ⁇ surface, wherein at least one gap is formed between the rotor and the housing inner surface, wherein a number of radially extending vanes, each having a Leitschaufelfuß are attached to the housing and in the region of the housing inner surface a swirl breaker for reducing a twist of a leakage flow is arranged. It further relates to a power plant with such a turbomachine.
  • the object of the invention is therefore to provide a turbomachine of the type mentioned above, which can be made quickly and at the same time is technically particularly simple ⁇ designed.
  • swirl crushers can now be distributed over the entire circumference, ie advantageously, one swirl crusher is positively fixed in each case in a plurality of interspaces formed from two adjoining vanes feet. This can be achieved in a simple manner in the entire circumferential direction sufficient Un ⁇ suppression of the peripheral components of the leakage flow.
  • the steam turbine comprises an outer housing 2, which is designed as a pot housing.
  • the pot construction is only ⁇ play, the invention can also be used in turbines of other designs.
  • a lid 3 is arranged with fastening means.
  • an inner housing 4 is arranged within the outer housing 2.
  • the inner ⁇ housing 4 has vanes 5.
  • the steam turbine 1 has an inflow opening 6 through which steam flows as a flow medium during operation. The flow medium flows through a flow channel 7 past the guide vanes 5.
  • FIG. 3 shows a view of the swirl breaker 20 in the circumferential direction.
  • the swirl breaker 20 has a bead 30 that extends initially in the radial direction over the radial section 26, and then over the remaining axial section. This serves on the one hand to stiffen the component, on the other hand, the swirl crusher 20 can be elastically deformed during installation so that it is secured against tilting.
  • 4 shows a corresponding view of the swirl breaker 20 in the axial direction.
  • 5 shows the swirl breaker 20 from the radial direction, wherein a bend of the swirl breaker 20 at the base of the radial portion 26 can be seen.
  • the swirl breaker 20 is bent at a flat angle about a bending axis 32 running in the radial direction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne une turbomachine comprenant un rotor (8) monté de manière à tourner autour d'un axe de rotation (9) et un carter (4, 2) disposé autour du rotor (8), ledit carter (4, 2) présentant une surface intérieure (14) formée dans un sens périphérique, à l'opposé du rotor (8), au moins une fente étant ménagée entre le rotor (8) et la surface intérieure (14) du carter. Un certain nombre de pales directrices (24) s'étendant dans le sens radial sont fixées au carter, respectivement au moyen d'une emplanture (22) et un élément de suppression de tourbillonnement (20) est disposé dans la zone de la surface intérieure (14) du carter, pour réduire les phénomènes de tourbillonnement d'un écoulement de fuite. L'invention vise à produire rapidement une turbomachine de ce type, qui soit simultanément de conception particulièrement simple sur le plan technique. A cet effet, l'élément suppresseur de tourbillonnement (20) se présente sous forme d'élément structural fixé par complémentarité de forme dans une emplanture de pale, parmi deux emplantures de pale (22) adjacentes.
EP11757253.7A 2010-09-10 2011-09-08 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine Not-in-force EP2614222B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11757253.7A EP2614222B1 (fr) 2010-09-10 2011-09-08 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10176188A EP2428649A1 (fr) 2010-09-10 2010-09-10 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine
EP11757253.7A EP2614222B1 (fr) 2010-09-10 2011-09-08 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine
PCT/EP2011/065516 WO2012032105A1 (fr) 2010-09-10 2011-09-08 Élément suppresseur de tourbillonnement disposé dans l'écoulement de fuite d'une turbomachine

Publications (2)

Publication Number Publication Date
EP2614222A1 true EP2614222A1 (fr) 2013-07-17
EP2614222B1 EP2614222B1 (fr) 2014-10-29

Family

ID=43558482

Family Applications (2)

Application Number Title Priority Date Filing Date
EP10176188A Withdrawn EP2428649A1 (fr) 2010-09-10 2010-09-10 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine
EP11757253.7A Not-in-force EP2614222B1 (fr) 2010-09-10 2011-09-08 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP10176188A Withdrawn EP2428649A1 (fr) 2010-09-10 2010-09-10 Dispositif de rupture de tourbillon dans un courant de fuite d'une turbomachine

Country Status (3)

Country Link
EP (2) EP2428649A1 (fr)
CN (1) CN103109041B (fr)
WO (1) WO2012032105A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016089768A (ja) * 2014-11-07 2016-05-23 三菱日立パワーシステムズ株式会社 シール装置及びターボ機械

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1861960A (en) * 1930-11-28 1932-06-07 Westinghouse Electric & Mfg Co Turbine blading
US4370094A (en) * 1974-03-21 1983-01-25 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft Method of and device for avoiding rotor instability to enhance dynamic power limit of turbines and compressors
JPS6123804A (ja) * 1984-07-10 1986-02-01 Hitachi Ltd タ−ビン段落構造
DE4215440A1 (de) * 1992-05-11 1993-11-18 Mtu Muenchen Gmbh Einrichtung zur Bauteilabdichtung, insbesondere bei Turbomaschinen
EP1001139B1 (fr) * 1998-11-10 2004-01-07 ALSTOM (Switzerland) Ltd Dispositif d'étanchéité pour les extrémités des aubes de turbine
WO2000057032A1 (fr) * 1999-03-24 2000-09-28 Siemens Aktiengesellschaft Aube directrice et couronne directrice pour turbomachine, et element pour limiter un canal d'ecoulement
US6722846B2 (en) * 2002-07-30 2004-04-20 General Electric Company Endface gap sealing of steam turbine bucket tip static seal segments and retrofitting thereof
JP2006104952A (ja) * 2004-09-30 2006-04-20 Toshiba Corp 流体機械の旋回流防止装置
EP1744015A1 (fr) * 2005-07-14 2007-01-17 Siemens Aktiengesellschaft Montage d'un segment d'étanchéité dans le pied d'une aube statorique
DE102007030764B4 (de) * 2006-07-17 2020-07-02 General Electric Technology Gmbh Dampfturbine mit Heizdampfentnahme
US20080118350A1 (en) * 2006-11-16 2008-05-22 General Electric Turbine seal guards
EP2031184A1 (fr) * 2007-08-31 2009-03-04 Siemens Aktiengesellschaft Dispositif de rupture de tourbillon pour turbomachine
US8052380B2 (en) * 2008-10-29 2011-11-08 General Electric Company Thermally-activated clearance reduction for a steam turbine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012032105A1 *

Also Published As

Publication number Publication date
EP2614222B1 (fr) 2014-10-29
CN103109041A (zh) 2013-05-15
CN103109041B (zh) 2015-11-25
WO2012032105A1 (fr) 2012-03-15
EP2428649A1 (fr) 2012-03-14

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