WO2001081731A1 - Dampfturbine mit einem einem rotor und/oder einem stator zugeordneten schaufelträger - Google Patents
Dampfturbine mit einem einem rotor und/oder einem stator zugeordneten schaufelträger Download PDFInfo
- Publication number
- WO2001081731A1 WO2001081731A1 PCT/EP2001/004444 EP0104444W WO0181731A1 WO 2001081731 A1 WO2001081731 A1 WO 2001081731A1 EP 0104444 W EP0104444 W EP 0104444W WO 0181731 A1 WO0181731 A1 WO 0181731A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover plate
- stator
- rotor
- steam turbine
- steam
- Prior art date
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
- F01D5/14—Form or construction
- F01D5/141—Shape, i.e. outer, aerodynamic form
- F01D5/145—Means for influencing boundary layers or secondary circulations
-
- 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
- F01D11/001—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between stator blade and rotor
Definitions
- the invention relates to a steam turbine according to the preamble of claim 1.
- the labyrinth seals essentially formed from the cover plate and sealing strips serve to reduce leakage losses.
- the edges of the cover plate have had a constant radius over their entire length.
- the radius of the blade carrier increases linearly or remains constant.
- the task is to reduce the flow loss in a steam turbine of the type mentioned.
- a front edge of the blade carrier arranged downstream of the cover plate has a rounding.
- An imaginary extension of an outer peripheral edge of the cover plate facing the blade carrier meets the rounding in the area between the base point and the end point.
- the wall of the cover plate is strongly formed, its outer peripheral surface can be chamfered accordingly, so that the outer peripheral edge formed thereby lies on the level of the rounding.
- the geometry of the bevel and / or rounding is chosen depending on the structural conditions in the area of the steam passage.
- the bevel can be shorter or longer, steeper or flatter, and the rounding can have different configurations. It is essential that a combination and a geometry is found which supports the deflection of the leakage mass flow in the direction of the main steam flow.
- Fig. 1 shows a schematically illustrated portion of a steam turbine
- FIG. 2 shows a detail II of FIG. 1 on a larger scale.
- Fig. 3 is a different from the Fig. 2 training.
- 1 indicates a rotor and 1 a stator of a steam turbine (not shown further).
- the rotor 1 and stator 2 are assigned a plurality of blade carriers 3, 3a arranged in series. Each blade carrier receives a plurality of blades 4, 4a, through which steam flows in the direction of arrow 5. The main flow of the steam therefore runs in the direction of arrow 5.
- the free ends of the blades are provided with cover plates 6, 6a. From the rotor 1 or from the stator 2, sealing strips 7 protrude, which together with the respective cover plate form a labyrinth seal 8.
- an outer surface 18 of the cover plate 6 is provided with a bevel 10 rising in the flow direction 5, whereby an outer peripheral edge 9 is formed.
- a rounding 13 of a front edge 14 of the blade carrier 3 begins at its base point 12. The rounding extends to an end point 16.
- the combination of bevel 10 and rounding 13 makes the penetration depth of the labyrinth seal passing Leakage mass flow across the main flow of the steam is considerably reduced. The leakage mass flow rather adapts in the arrow direction 15 to the main flow direction 5 of the steam.
- Bevel and rounding can also assume a position that is independent of the imaginary extension 11. Like the geometry, it depends on rounding and
- FIG. 3 Another embodiment is shown in FIG. 3.
- the wall of the cover plate 6 is made so thin that a beveling of the outer peripheral surface 18 in the sense of FIG. 2 is not necessary.
- the outer circumferential edge 9 is, as indicated by an imaginary extension 11 a, already at the level of the rounding 13, so that the leakage mass flow between the base point 12 and the end point 16 meets the rounding 13 and is deflected in the direction of the arrow 15.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001270490A AU2001270490A1 (en) | 2000-04-20 | 2001-04-19 | Steam turbine comprising a blade support allocated to a rotor and/or a stator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10019546.6A DE10019546B4 (de) | 2000-04-20 | 2000-04-20 | Dampfturbine mit einem einem Rotor und/oder einem Stator zugeordneten Schaufelträger |
DE10019546.6 | 2000-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001081731A1 true WO2001081731A1 (de) | 2001-11-01 |
Family
ID=7639411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/004444 WO2001081731A1 (de) | 2000-04-20 | 2001-04-19 | Dampfturbine mit einem einem rotor und/oder einem stator zugeordneten schaufelträger |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU2001270490A1 (de) |
DE (1) | DE10019546B4 (de) |
WO (1) | WO2001081731A1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2055902A1 (de) * | 2007-10-31 | 2009-05-06 | Siemens Aktiengesellschaft | Turbine für ein Wärmekraftwerk mit einer Laufschaufel und einer Leitschaufel |
EP2055896A1 (de) * | 2007-10-31 | 2009-05-06 | Siemens Aktiengesellschaft | Schaufel mit einem Fußbereich für eine Turbine eines Wärmekraftwerks |
EP3517731A1 (de) * | 2018-01-30 | 2019-07-31 | Safran Aero Boosters SA | Anordnung mit einer ringförmigen durchlassöffnung zwischen einer stator- und einer rotorplattform einer strömungsmaschine und zugehöriges verfahren zur regelung der verdichterstabilität |
US11053807B2 (en) | 2017-06-12 | 2021-07-06 | Mitsubishi Power, Ltd. | Axial flow rotating machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE59710924D1 (de) * | 1997-09-15 | 2003-12-04 | Alstom Switzerland Ltd | Kühlvorrichtung für Gasturbinenkomponenten |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR976791A (fr) * | 1948-10-19 | 1951-03-22 | Perfectionnements aux compresseurs axiaux | |
EP0509921A1 (de) * | 1991-04-19 | 1992-10-21 | Gec Alsthom Sa | Aktionsturbinen |
EP0799973A1 (de) * | 1996-04-01 | 1997-10-08 | Asea Brown Boveri Ag | Wandkontur für eine axiale Strömungsmaschine |
EP0894944A1 (de) * | 1997-07-29 | 1999-02-03 | Siemens Aktiengesellschaft | Turbinenbeschaufelung |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2707698B1 (fr) * | 1993-07-15 | 1995-08-25 | Snecma | Turbomachine munie d'un moyen de soufflage d'air sur un élément de rotor. |
JPH10259703A (ja) * | 1997-03-18 | 1998-09-29 | Mitsubishi Heavy Ind Ltd | ガスタービンのシュラウド及びプラットフォームシールシステム |
JP3327814B2 (ja) * | 1997-06-18 | 2002-09-24 | 三菱重工業株式会社 | ガスタービンのシール装置 |
-
2000
- 2000-04-20 DE DE10019546.6A patent/DE10019546B4/de not_active Revoked
-
2001
- 2001-04-19 AU AU2001270490A patent/AU2001270490A1/en not_active Abandoned
- 2001-04-19 WO PCT/EP2001/004444 patent/WO2001081731A1/de active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR976791A (fr) * | 1948-10-19 | 1951-03-22 | Perfectionnements aux compresseurs axiaux | |
EP0509921A1 (de) * | 1991-04-19 | 1992-10-21 | Gec Alsthom Sa | Aktionsturbinen |
EP0799973A1 (de) * | 1996-04-01 | 1997-10-08 | Asea Brown Boveri Ag | Wandkontur für eine axiale Strömungsmaschine |
EP0894944A1 (de) * | 1997-07-29 | 1999-02-03 | Siemens Aktiengesellschaft | Turbinenbeschaufelung |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2055902A1 (de) * | 2007-10-31 | 2009-05-06 | Siemens Aktiengesellschaft | Turbine für ein Wärmekraftwerk mit einer Laufschaufel und einer Leitschaufel |
EP2055896A1 (de) * | 2007-10-31 | 2009-05-06 | Siemens Aktiengesellschaft | Schaufel mit einem Fußbereich für eine Turbine eines Wärmekraftwerks |
US11053807B2 (en) | 2017-06-12 | 2021-07-06 | Mitsubishi Power, Ltd. | Axial flow rotating machine |
EP3517731A1 (de) * | 2018-01-30 | 2019-07-31 | Safran Aero Boosters SA | Anordnung mit einer ringförmigen durchlassöffnung zwischen einer stator- und einer rotorplattform einer strömungsmaschine und zugehöriges verfahren zur regelung der verdichterstabilität |
BE1025961B1 (fr) * | 2018-01-30 | 2019-08-28 | Safran Aero Boosters S.A. | Passage annulaire entre une virole et une plateforme rotorique de turbomachine |
US10900366B2 (en) | 2018-01-30 | 2021-01-26 | Safran Aero Boosters Sa | Passageway between a shroud and a rotor platform in a turbine engine |
Also Published As
Publication number | Publication date |
---|---|
DE10019546B4 (de) | 2016-04-07 |
DE10019546A1 (de) | 2001-10-25 |
AU2001270490A1 (en) | 2001-11-07 |
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