EP0967363A2 - Wabenstruktur-Dichtung inbesondere für eine Gasturbine - Google Patents
Wabenstruktur-Dichtung inbesondere für eine Gasturbine Download PDFInfo
- Publication number
- EP0967363A2 EP0967363A2 EP99110083A EP99110083A EP0967363A2 EP 0967363 A2 EP0967363 A2 EP 0967363A2 EP 99110083 A EP99110083 A EP 99110083A EP 99110083 A EP99110083 A EP 99110083A EP 0967363 A2 EP0967363 A2 EP 0967363A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- honeycomb structure
- section
- honeycomb
- turbine
- seal
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S277/00—Seal for a joint or juncture
- Y10S277/913—Seal for fluid pressure below atmospheric, e.g. vacuum
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49297—Seal or packing making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24149—Honeycomb-like
Definitions
- the invention relates to a honeycomb structure seal between a rotating element and a stator element of a turbine, in particular for a gas turbine, with a brushing section facing the tips of the turbine blades and with a base plate facing the other element of the turbine.
- the abrading section faces the tips of the turbine stator blades.
- honeycomb structure seals for the rotor blades, for example of gas turbines, which are arranged on the inner wall of the turbine housing, are also used, among other things, as honeycomb structure seals
- the honeycomb structure is supported by a base plate, while the web walls forming the honeycomb structure, with their free end sections, face the tips of the rotor blades.
- the honeycomb cells delimited by the web walls can be at least partially filled with a suitable insulation material , as described in the above-mentioned document.
- the object of the present invention is to provide a remedial measure for the problems described.
- the solution to this problem is characterized by a multi-layer structure of the honeycomb structure seal in such a way that an air-evacuated honeycomb structure section, which is thus partially insulated by vacuum, connects to the base plate and is covered by an intermediate plate on its side facing away from the honeycomb structure section the brushing section is arranged.
- Advantageous training and further education are included in the subclaims. It should be pointed out again that the so-called honeycomb structure section is to be understood as an arrangement of several cavities of essentially any shape next to one another.
- Reference number 1 denotes a base plate, on the surface thereof a honeycomb structure which is customary in honeycomb seals is. This honeycomb structure adjacent to the base plate 1 is referred to below as Honeycomb structure section 2 of the honeycomb structure seal according to the invention designated.
- An intermediate plate 3 adjoins the honeycomb structure section 2 on the side opposite the base plate 1, ie the honeycomb structure section 2 is covered by the intermediate plate 3.
- the attached figure is an exploded view, ie in reality the honeycomb structure section 2 is embedded directly between the base plate 1 on the one hand and the intermediate plate 3 on the other hand.
- a so-called rubbing section 4 is arranged on the intermediate plate 3. This brushing section 4 again lies directly on the intermediate plate 3.
- honeycomb structure seal shown and described so far draws is thus characterized by a multi-layer structure consisting of the base plate 1, the honeycomb structure section 2, the intermediate plate 3 and the brushing section 4.
- the base plate 1 In the installed state of this honeycomb structure seal in one Turbine, in particular an aircraft gas turbine, is the base plate 1 with its free (here lower) surface on the inner wall of the not shown Turbine housing, while the (upper in the figure) free surface of the brushing section 4 (also not shown) Blade tips facing the turbine rotor blades.
- the abradable section 4 is designed with regard to the required sealing effect, ie, the sealing of the gap between the blade tips, not shown, and the honeycomb structure seal.
- This abrading section 4, on which the blade tips can or should actually rub to achieve an optimal sealing effect can thus be a brush seal, a plasma spray layer, a metal felt or one known to the person skilled in the art Metco "layer, or else other suitable sealing structures.
- this rub-on section 4 itself is again in the form of a (conventional) honeycomb seal, ie it consists, as usual, of a multiplicity of, for example, or preferably honeycomb-like web walls 5, each of which form so-called honeycomb cells 6.
- the sealing function of the honeycomb structure seal according to the invention is taken from section 2 of the honeycomb structure.
- the latter is air evacuated, i.e. in the partial areas of the individual honeycomb cells 6 of the honeycomb structure section 2 there is thermal insulation due to vacuum. This means that the vacuum that is at least essentially present in the honeycomb cells 6 is preserved, it is of course necessary that the honeycomb cells 6 (in the figure display up and down) completed are what through the base plate 1 on the one hand and through the intermediate plate 3 on the other hand is guaranteed.
- honeycomb structure section 2 and the base plate 1 and the intermediate plate 3 formed section the honeycomb structure seal by high temperature soldering under vacuum conditions.
- the intermediate plate 3 is soldered.
- the brushing section 4 is connected to the intermediate plate 3 become.
- honeycomb structure seal proposed here thus consists of two, by an intermediate plate 3 separated honeycomb structures, namely the honeycomb structure section 2 and the brushing section 4.
- honeycomb structures can be commercially available and preferably consist of thin, metallic high-temperature alloys.
- the (here lower) honeycomb structure section 3 takes over the function of thermal insulation; consequently, he can constructively Varying the structure size and height of the required insulation characteristics be adjusted. Because the desired thermal Isolation effect by the prevailing in the honeycomb cells 6 (at least essentially) vacuum is achieved, these honeycomb cells 6 should be preferred have the largest possible base or cross-sectional area.
- the upper sealing honeycomb structure i.e. of the Brushing section 4 in its / its execution to the requirements of Sealing effect with respect to the turbine working gas flowing past it customized.
- the achievable sealing effect is better, the smaller the basic or Cross-sectional areas of the honeycomb cells 6 of this honeycomb structure are. Accordingly, it can be seen that the honeycomb cells 6 of the Honeycomb formed trained streak section 4 a significantly smaller Have partial area as the honeycomb cells 6 of the honeycomb structure section 2nd
- Honeycomb structure section 2 alternatively as an insulating substructure for one other than the brushing section 4 shown, i.e.
- other sealing systems can also be used, such as for example a brush seal, METCO layers, plasma spray layers, Metal felts or the like, each based on the vacuum insulation structure described can be applied.
- a brush seal METCO layers
- plasma spray layers Metal felts or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Die Lösung dieser Aufgabe ist gekennzeichnet durch einen mehrlagigen Aufbau der Wabenstruktur-Dichtung derart, daß sich an die Grundplatte ein luftevakuierter und somit in Teilflächen durch Vakuum isolierender Wabenstruktur-Abschnitt anschließt, der durch eine Zwischenplatte abgedeckt ist, auf deren dem Wabenstruktur-Abschnitt abgewandten Seite der Anstreif-Abschnitt angeordnet ist. Vorteilhafte Aus- und Weiterbildungen sind Inhalt der Unteransprüche. Dabei sei nochmals darauf hingewiesen, daß der sog. Wabenstruktur-Abschnitt als eine Anordnung von mehreren Hohlräumen von im wesentlichen beliebiger Form nebeneinander zu verstehen ist.
Auf der Zwischenplatte 3 ihrerseits, und zwar auf deren dem Wabenstruktur-Abschnitt 2 abgewandten Seite ist ein sogenannter Anstreif-Abschnitt 4 angeordnet. Auch dieser Anstreif-Abschnitt 4 liegt wieder direkt auf der Zwischenplatte 3 auf.
- 1
- Grundplatte
- 2
- Wabenstruktur-Abschnitt
- 3
- Zwischenplatte
- 4
- Anstreif-Abschnitt
- 5
- Stegwand einer Wabenstruktur
- 6
- Wabenzelle einer Wabenstruktur
Claims (4)
- Wabenstruktur-Dichtung zwischen einem rotierenden Element und einem Stator-Element einer Turbine, insbesondere für eine Gasturbine, mit einem den Spitzen der Turbinen-Schaufeln zugewandten Anstreif-Abschnitt (4) sowie mit einer dem anderen Element der Turbine zugewandten Grundplatte (1),
gekennzeichnet durch einen mehrlagigen Aufbau derart, daß sich an die Grundplatte (1) ein luftevakuierter und somit in Teilflächen durch Vakuum isolierender Wabenstruktur-Abschnitt (2) anschließt, der durch eine Zwischenplatte (3) abgedeckt ist, auf deren der Wabenstruktur (2) abgewandten Seite der Anstreif-Abschnitt (4) angeordnet ist. - Wabenstruktur-Dichtung nach Anspruch 1,
dadurch gekennzeichnet, daß die Zwischenplatte (3) mit dem Wabenstruktur-Abschnitt (2) verlötet ist, wobei dieser Herstellungsprozess unter Vakuumbedingungen erfolgt. - Wabenstruktur-Dichtung nach Anspruch 1 oder 2,
dadurch gekennzeichnet, daß der Anstreifabschnitt (4) ebenfalls als Wabendichtung ausgebildet ist. - Wabenstruktur-Dichtung nach einem der vorangegangenen Ansprüche,
dadurch gekennzeichnet, daß die Wabenzellen (6) des als Wabendichtung ausgebildeten Anstreif-Abschnittes (4) eine signifikant kleinere Teilfläche aufweisen als die Wabenzellen (6) des Wabenstruktur-Abschnittes (2).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19828065A DE19828065A1 (de) | 1998-06-24 | 1998-06-24 | Wabenstruktur-Dichtung insbesondere für eine Gasturbine |
DE19828065 | 1998-06-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0967363A2 true EP0967363A2 (de) | 1999-12-29 |
EP0967363A3 EP0967363A3 (de) | 2000-11-22 |
EP0967363B1 EP0967363B1 (de) | 2003-05-02 |
Family
ID=7871828
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99110083A Expired - Lifetime EP0967363B1 (de) | 1998-06-24 | 1999-05-22 | Wabenstruktur-Dichtung inbesondere für eine Gasturbine |
Country Status (3)
Country | Link |
---|---|
US (1) | US6251494B1 (de) |
EP (1) | EP0967363B1 (de) |
DE (2) | DE19828065A1 (de) |
Cited By (1)
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 |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6652226B2 (en) * | 2001-02-09 | 2003-11-25 | General Electric Co. | Methods and apparatus for reducing seal teeth wear |
US6780458B2 (en) * | 2001-08-01 | 2004-08-24 | Siemens Westinghouse Power Corporation | Wear and erosion resistant alloys applied by cold spray technique |
US6706319B2 (en) | 2001-12-05 | 2004-03-16 | Siemens Westinghouse Power Corporation | Mixed powder deposition of components for wear, erosion and abrasion resistant applications |
US6655576B2 (en) * | 2002-03-26 | 2003-12-02 | United Technologies Corporation | Process for disassembling a brazed structure |
US6827350B2 (en) | 2002-10-30 | 2004-12-07 | General Electric Company | Hybrid honeycomb and brush seal for steam gland |
US20040239040A1 (en) * | 2003-05-29 | 2004-12-02 | Burdgick Steven Sebastian | Nozzle interstage seal for steam turbines |
US7178340B2 (en) * | 2003-09-24 | 2007-02-20 | Power Systems Mfg., Llc | Transition duct honeycomb seal |
DE102004010236A1 (de) * | 2004-03-03 | 2005-09-15 | Mtu Aero Engines Gmbh | Ringstruktur in Metallbauweise |
US7542830B2 (en) * | 2004-04-28 | 2009-06-02 | Klauder Jr Louis T | Method for maintaining geometry of ballasted railroad track |
GB2416192B (en) * | 2004-07-14 | 2006-09-27 | Rolls Royce Plc | Ducted fan with containment structure |
DE102004034312A1 (de) * | 2004-07-15 | 2006-02-02 | Mtu Aero Engines Gmbh | Dichtungsanordnung und Verfahren zur Herstellung eines Dichtkörpers für eine Dichtungsanordnung |
US20070137039A1 (en) * | 2005-12-20 | 2007-06-21 | General Electric Company | Methods and apparatus for coupling honeycomb seals to gas turbine engine components |
US8080973B2 (en) | 2008-10-22 | 2011-12-20 | General Electric Company | Apparatus for energy transfer using converter and method of manufacturing same |
US7932633B2 (en) | 2008-10-22 | 2011-04-26 | General Electric Company | Apparatus for transferring energy using power electronics and machine inductance and method of manufacturing same |
US9290097B2 (en) | 2010-11-05 | 2016-03-22 | Robert Louis Steigerwald | Apparatus for transferring energy using onboard power electronics with high-frequency transformer isolation and method of manufacturing same |
GB201020143D0 (en) | 2010-11-29 | 2011-01-12 | Rolls Royce Plc | A gas turbine engine blade containment arrangement |
ITCO20110068A1 (it) * | 2011-12-20 | 2013-06-21 | Nuovo Pignone Spa | Metodo e tenuta a nido d'ape |
CN102979906A (zh) * | 2012-08-29 | 2013-03-20 | 哈尔滨汽轮机厂有限责任公司 | 用于燃气轮机的蜂窝密封装置的加工方法 |
JP6184173B2 (ja) | 2013-05-29 | 2017-08-23 | 三菱日立パワーシステムズ株式会社 | ガスタービン |
CA2922568C (en) * | 2013-09-06 | 2019-10-22 | General Electric Company | A gas turbine laminate seal assembly comprising first and second honeycomb layer and a perforated intermediate seal plate in-between |
EP2998517B1 (de) * | 2014-09-16 | 2019-03-27 | Ansaldo Energia Switzerland AG | Dichtungsanordnung an der Schnittstelle zwischen einer Brennkammer und einer Turbine einer Gasturbine sowie Gasturbine mit solch einer Dichtungsanordnung |
DE102015216208A1 (de) * | 2015-08-25 | 2017-03-02 | Rolls-Royce Deutschland Ltd & Co Kg | Dichtelement für eine Turbomaschine, Turbomaschine mit einem Dichtelement und Verfahren zur Herstellung eines Dichtelementes |
EP3228826B1 (de) * | 2016-04-05 | 2021-03-17 | MTU Aero Engines GmbH | Dichtungssegmentanordnung mit steckverbindung, zugehörige gasturbine und herstellungsverfahren |
US9816388B1 (en) * | 2016-09-22 | 2017-11-14 | General Electric Company | Seal in a gas turbine engine having a shim base and a honeycomb structure with a number of cavities formed therein |
US10774670B2 (en) * | 2017-06-07 | 2020-09-15 | General Electric Company | Filled abradable seal component and associated methods thereof |
US10919106B2 (en) * | 2017-06-09 | 2021-02-16 | General Electric Company | Ultrasonic welding of annular components |
US11674396B2 (en) | 2021-07-30 | 2023-06-13 | General Electric Company | Cooling air delivery assembly |
US11674405B2 (en) | 2021-08-30 | 2023-06-13 | General Electric Company | Abradable insert with lattice structure |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235745A1 (de) | 1981-09-29 | 1983-04-28 | United Technologies Corp., 06101 Hartford, Conn. | Isolierte wabendichtung |
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US3071853A (en) * | 1955-10-17 | 1963-01-08 | Solar Aircraft Co | Method and apparatus for making brazed honeycomb |
US3001274A (en) * | 1957-01-18 | 1961-09-26 | Solar Aircraft Co | Brazing article and method |
US3067507A (en) * | 1958-02-07 | 1962-12-11 | Goodyear Aircraft Corp | Method of making sandwich structures |
GB1268777A (en) * | 1968-11-23 | 1972-03-29 | Rolls Royce | Cellular structure |
US3633267A (en) * | 1968-12-27 | 1972-01-11 | Boeing Co | Method of diffusion bonding honeycomb composite structures |
US3981429A (en) * | 1970-10-16 | 1976-09-21 | Rohr Industries, Inc. | Method for plated foil liquid interface diffusion bonding of titanium |
US4013210A (en) * | 1972-08-21 | 1977-03-22 | Czeslaw Deminet | Method of diffusion bonding |
US3846903A (en) * | 1973-07-13 | 1974-11-12 | Us Air Force | Vacuum brazing tantalum alloys |
FR2452601A1 (fr) * | 1979-03-30 | 1980-10-24 | Snecma | Support amovible de revetement d'etancheite pour carter de soufflante de turboreacteur |
DE2922835C2 (de) * | 1979-06-06 | 1985-06-05 | MTU Motoren- und Turbinen-Union München GmbH, 8000 München | Umfangsspaltdichtung an Axialströmungsmaschinen |
FR2467977A1 (fr) * | 1979-10-19 | 1981-04-30 | Snecma | Dispositif de securite en cas de rupture d'element rotatif de turbomachine |
JPS57187242A (en) * | 1981-05-15 | 1982-11-17 | Tokyo Shibaura Electric Co | Vacuum heat insulating plate |
US4534698A (en) * | 1983-04-25 | 1985-08-13 | General Electric Company | Blade containment structure |
JPS62116132A (ja) * | 1985-11-15 | 1987-05-27 | 石崎産業株式会社 | 段ボ−ル製の真空断熱包装材及びその製造方法 |
US4937125A (en) * | 1987-06-19 | 1990-06-26 | Etat Francais | Lightweight sandwich designed for making multilayer structures resistant to impact and thermal aggressions |
IE67360B1 (en) * | 1990-09-25 | 1996-03-20 | United Technologies Corp | Apparatus and method for a stator assembly of a rotary machine |
US5192623A (en) * | 1990-10-23 | 1993-03-09 | Lockhart Industries | Laminated structural panels and the method of producing them |
GB9307288D0 (en) * | 1993-04-07 | 1993-06-02 | Rolls Royce Plc | Gas turbine engine casing construction |
JPH091701A (ja) * | 1995-06-21 | 1997-01-07 | Toyota Central Res & Dev Lab Inc | 真空断熱材及びハニカム板の製造方法 |
JPH11280199A (ja) * | 1998-03-30 | 1999-10-12 | Comany Kk | 間仕切りパネル |
-
1998
- 1998-06-24 DE DE19828065A patent/DE19828065A1/de not_active Withdrawn
-
1999
- 1999-05-22 DE DE59905282T patent/DE59905282D1/de not_active Expired - Lifetime
- 1999-05-22 EP EP99110083A patent/EP0967363B1/de not_active Expired - Lifetime
- 1999-06-08 US US09/327,626 patent/US6251494B1/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3235745A1 (de) | 1981-09-29 | 1983-04-28 | United Technologies Corp., 06101 Hartford, Conn. | Isolierte wabendichtung |
Cited By (1)
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 |
Also Published As
Publication number | Publication date |
---|---|
EP0967363B1 (de) | 2003-05-02 |
EP0967363A3 (de) | 2000-11-22 |
DE59905282D1 (de) | 2003-06-05 |
US6251494B1 (en) | 2001-06-26 |
DE19828065A1 (de) | 1999-12-30 |
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