EP1179654A2 - Honigwabendichtung für eine thermische Turbomaschine - Google Patents
Honigwabendichtung für eine thermische Turbomaschine Download PDFInfo
- Publication number
- EP1179654A2 EP1179654A2 EP01115956A EP01115956A EP1179654A2 EP 1179654 A2 EP1179654 A2 EP 1179654A2 EP 01115956 A EP01115956 A EP 01115956A EP 01115956 A EP01115956 A EP 01115956A EP 1179654 A2 EP1179654 A2 EP 1179654A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- honeycomb structure
- webs
- connections
- stator
- sheets
- 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
Links
Images
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
- F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
- F01D11/12—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part
- F01D11/127—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator using a rubstrip, e.g. erodible. deformable or resiliently-biased part with a deformable or crushable structure, e.g. honeycomb
-
- 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
- F05D2250/00—Geometry
- F05D2250/20—Three-dimensional
- F05D2250/28—Three-dimensional patterned
- F05D2250/283—Three-dimensional patterned honeycomb
Definitions
- the invention is a seal of a thermal Turbo machine according to the preamble of claim 1.
- the guide and rotor blades of gas turbines are exposed to heavy loads.
- the rotor blade of the Gas turbine fitted to the stator in such a way that rubbing occurs.
- the blades work their way into this structure so that there is a minimal sealing gap between the blades and the Honeycomb structure.
- the honeycomb structure consists of a heat-resistant one Metal alloy. It is composed of several metal strips, which of the later shape are bent accordingly. Because of this honeycomb structure double-walled webs and simple connections between the jetties.
- the aim of the invention is to overcome these disadvantages.
- the invention solves the Task, the friction behavior between the blades and the Honeycomb structure to improve and the undesirable side effects of Friction, such as heating up the components involved Reduce.
- the sheet thickness of the individual can be advantageous for achieving the same goal Sheets in the places where the sheets on the honeycomb structure the webs form, be reduced compared to the sheet thickness of the connections.
- the length of the webs in relation to Length of connections should be reduced, leaving a deformed honeycomb arises.
- the ratio of the length of the webs to the length of the connections between The webs of the deformed honeycomb can be 1: 1 to a maximum of 1:20.
- the Effect can also be supported if the angle between a web and the two adjacent connections varied between 60 ° and 120 °.
- a honeycomb structure 1 of Figure 1 which on the Is not shown stator attached, consists of individual sheets 5 one heat-resistant alloy.
- the sheets 5 are shaped such that the hexagonal ones Form honeycombs.
- the sheets 5 are attached to each other on webs 3, so that structure 1 is double-walled at these points. Between Bridges 3 are simply connections 4.
- the honeycomb structure 1 is attached to the stator in such a way that an angle ⁇ of 5 ° to 175 ° between the axis which form the webs 3, and a circumferential direction 2 of the stator or the blades of the gas turbine consists.
- the sheet thickness of the individual sheets 5 can be increased the places where the metal sheets 5 on the honeycomb structure 1 have the webs 3 form, be reduced compared to the sheet thickness of the connections 4. This too improves the friction behavior between the blades and the Honeycomb structure 1.
- the honeycomb is "deformed".
- the length b of the Web 3 can in relation to the length a of the connections 4 in one Ratio from 1: 1 to a maximum of 1:20.
- the effect can also be supported provided the angle ⁇ between a web 3 and the two adjacent ones Connections 4 varies between 60 ° and 120 °.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
- Fig. 1
- eine erste Ausführungsform einer erfindungsgemässen Anordnung einer Honigwabenstruktur zeigt und
- Fig. 2
- eine zweite Ausführungsform einer erfindungsgemässen Honigwabenstruktur darstellt.
- 1
- Honigwabenstruktur
- 2
- Umfangsrichtung
- 3
- Steg
- 4
- Verbindungen zwischen den Stegen 3
- 5
- Blech
- a
- Länge der Verbindungen 4
- b
- Länge der Stege 3
- α
- Winkel
- β
- Winkel
Claims (5)
- Honigwabenstruktur (1), welche an einem Stator einer thermischen Turboturbine angeordnet ist und welche den Laufschaufeln der thermischen Turboturbine gegenüberliegend angeordnet ist, wobei sich die Honigwabenstruktur (1) derart aus Blechen (5) zusammensetzt, dass Stege (3) mit doppelter Blechstärke entstehen und einfach ausgeführte Verbindungen (4) zwischen den Stegen (3),
dadurch gekennzeichnet, dass
der Winkel (α) zwischen der Umfangsrichtung (2) des Stators und den doppelt ausgeführten Stegen (3) 5° bis 175° beträgt. - Honigwabenstruktur (1) nach Anspruch 1,
dadurch gekennzeichnet, dass
die Blechstärke der einzelnen Bleche (5) an den Stellen, an welchen die Bleche (5) an der Honigwabenstruktur (1) die Stege (3) bilden, gegenüber der Blechstärke der Verbindungen (4) verringert ist. - Honigwabenstruktur (1) nach Anspruch 1,
dadurch gekennzeichnet, dass
das Verhältnis der Länge (b) der Stege (3) zur Länge (a) der Verbindungen (4) zwischen den Stegen (3) der Honigwabe 1:1 bis 1:20 ist. - Honigwabenstruktur (1) nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass
der Winkel (β) zwischen einem Steg (3) und den beiden angrenzenden Verbindungen (4) zwischen 60° und 120° ist. - Honigwabenstruktur (1) nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass
die thermische Turbomaschine eine Gasturbine ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10038452 | 2000-08-07 | ||
| DE10038452A DE10038452B4 (de) | 2000-08-07 | 2000-08-07 | Abdichtung einer thermischen Turbomaschine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1179654A2 true EP1179654A2 (de) | 2002-02-13 |
| EP1179654A3 EP1179654A3 (de) | 2003-07-23 |
| EP1179654B1 EP1179654B1 (de) | 2010-05-05 |
Family
ID=7651568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01115956A Expired - Lifetime EP1179654B1 (de) | 2000-08-07 | 2001-06-29 | Honigwabendichtung für eine thermische Turbomaschine |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6575698B2 (de) |
| EP (1) | EP1179654B1 (de) |
| DE (2) | DE10038452B4 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10247031A1 (de) * | 2002-10-09 | 2004-04-22 | Alstom (Switzerland) Ltd. | Vorrichtung zur Dichtung eines Dichtspalts bei einer Strömungsrotationsmaschine |
| EP1918531A3 (de) * | 2006-11-06 | 2010-04-21 | Rolls-Royce Deutschland Ltd & Co KG | Sicherungsring für das Fangehäuse eines Gasturbinentriebwerks |
| EP2813671A1 (de) * | 2013-05-29 | 2014-12-17 | Mitsubishi Hitachi Power Systems, Ltd. | Gasturbine mit Wabendichtung |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005002270A1 (de) * | 2005-01-18 | 2006-07-20 | Mtu Aero Engines Gmbh | Triebwerk |
| DE102009016803A1 (de) * | 2009-04-09 | 2010-10-14 | Rolls-Royce Deutschland Ltd & Co Kg | Labyrinth-Anstreifdichtung für eine Strömungsmaschine |
| EP3045680B1 (de) * | 2015-01-15 | 2020-10-14 | Ansaldo Energia Switzerland AG | Verfahren und Vorrichtung zum Abkühlen einer heißen Gaswand |
| DE102017209658A1 (de) * | 2017-06-08 | 2018-12-13 | MTU Aero Engines AG | Einlaufstruktur für eine Strömungsmaschine, Strömungsmaschine mit einer Einlaufstruktur und Verfahren zum Herstellen einer Einlaufstruktur |
| CN108374693B (zh) * | 2018-03-15 | 2019-06-04 | 哈尔滨工业大学 | 一种带有组合棱台结构的涡轮动叶片叶顶 |
| DE102022201360A1 (de) | 2022-02-10 | 2023-08-10 | Siemens Energy Global GmbH & Co. KG | Dichtelement mit Wabenstruktur sowie Turbine mit einem solchen Dichtelement |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3867061A (en) * | 1973-12-26 | 1975-02-18 | Curtiss Wright Corp | Shroud structure for turbine rotor blades and the like |
| US4346904A (en) * | 1980-11-26 | 1982-08-31 | Watkins Jr Shelton | Honeycomb structure for use in abradable seals |
| US4618152A (en) * | 1983-01-13 | 1986-10-21 | Thomas P. Mahoney | Honeycomb seal structure |
| FR2552159B1 (fr) * | 1983-09-21 | 1987-07-10 | Snecma | Dispositif de liaison et d'etancheite de secteurs d'aubes de stator de turbine |
| US4832999A (en) * | 1987-10-27 | 1989-05-23 | Avco Lycoming/Textron | Honeycomb structure assemblies |
| US5096376A (en) * | 1990-08-29 | 1992-03-17 | General Electric Company | Low windage corrugated seal facing strip |
| US5520508A (en) * | 1994-12-05 | 1996-05-28 | United Technologies Corporation | Compressor endwall treatment |
-
2000
- 2000-08-07 DE DE10038452A patent/DE10038452B4/de not_active Expired - Fee Related
-
2001
- 2001-06-29 DE DE50115465T patent/DE50115465D1/de not_active Expired - Lifetime
- 2001-06-29 EP EP01115956A patent/EP1179654B1/de not_active Expired - Lifetime
- 2001-07-03 US US09/897,477 patent/US6575698B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10247031A1 (de) * | 2002-10-09 | 2004-04-22 | Alstom (Switzerland) Ltd. | Vorrichtung zur Dichtung eines Dichtspalts bei einer Strömungsrotationsmaschine |
| EP1918531A3 (de) * | 2006-11-06 | 2010-04-21 | Rolls-Royce Deutschland Ltd & Co KG | Sicherungsring für das Fangehäuse eines Gasturbinentriebwerks |
| EP2813671A1 (de) * | 2013-05-29 | 2014-12-17 | Mitsubishi Hitachi Power Systems, Ltd. | Gasturbine mit Wabendichtung |
| US9822659B2 (en) | 2013-05-29 | 2017-11-21 | Mitsubishi Hitachi Power Systems, Ltd. | Gas turbine with honeycomb seal |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10038452A1 (de) | 2002-02-21 |
| EP1179654A3 (de) | 2003-07-23 |
| DE50115465D1 (de) | 2010-06-17 |
| EP1179654B1 (de) | 2010-05-05 |
| DE10038452B4 (de) | 2011-05-26 |
| US6575698B2 (en) | 2003-06-10 |
| US20020015641A1 (en) | 2002-02-07 |
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