EP1121509B1 - Dampfturbine mit einem abdampfgehäuse - Google Patents
Dampfturbine mit einem abdampfgehäuse Download PDFInfo
- Publication number
- EP1121509B1 EP1121509B1 EP99955798A EP99955798A EP1121509B1 EP 1121509 B1 EP1121509 B1 EP 1121509B1 EP 99955798 A EP99955798 A EP 99955798A EP 99955798 A EP99955798 A EP 99955798A EP 1121509 B1 EP1121509 B1 EP 1121509B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- housing
- jacket
- turbine
- exhaust
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 description 9
- 230000008020 evaporation Effects 0.000 description 7
- 238000001704 evaporation Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- 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
- F05D2230/00—Manufacture
- F05D2230/60—Assembly methods
- F05D2230/61—Assembly methods using limited numbers of standard modules which can be adapted by machining
Definitions
- the invention relates to a steam turbine with a Exhaust steam.
- a steam turbine is typically used in a power plant to drive a generator or in an industrial plant used to drive a work machine. This will steam serving as flow medium is fed to the steam turbine, who relaxes while working in the steam turbine. After its expansion, the steam usually arrives via an exhaust steam casing of the steam turbine into one of these downstream capacitor and condenses there.
- the Exhaust housing can flow axially or radially his. The condensate is then used as feed water for a steam generator fed and arrives again after its evaporation into the steam turbine, so that a closed water-steam cycle arises.
- the turbine housing of a gas turbine such as in US 4 130 375 or a steam turbine, is usually made of composed of several housing sections, which in their constructive dimensioning to given boundary parameters such as adjusting the desired performance size are.
- Housing sections also for a suitable combination be dimensioned with other standard components.
- the evaporation housing is usually over a circumferential Radial flange on the preceding one, also as an inlet housing designated housing section arranged.
- Regarding its steam inflow area is that through the exhaust steam housing Circular ring diffuser thus formed by the dimensions of the inlet housing largely determined. However, these can depending on the predefined capacity of the steam turbine and thus according to the selected standard module for the entry housing vary comparatively strongly.
- the Circular ring diffuser on the steam outlet side in its dimensioning by the connection diameter of the downstream capacitor fixed, which in turn for standardization reasons usually regardless of the size of the steam turbine is chosen uniformly.
- the invention is therefore based on the object of a steam turbine with an evaporator housing and with one inside the evaporator housing arranged by an inner hub to specify the surrounding turbine rotor bearing the under the evaporation housing with particularly simple means Maintaining favorable flow properties of the exhaust steam different combinations of inlet housing and condenser is customizable.
- the outer jacket the evaporation housing a first, cylindrical jacket Includes part of the jacket with a stiffening ring a second, cone-shaped jacket part is connected, whereby to guide the exhaust steam flow within the outer jacket a conical jacket-shaped guide element on the stiffening ring is arranged, and by the inner hub a first, in essential cone-shaped hub part and a second, comprises essentially cylindrical jacket-shaped hub part.
- the invention is based on the consideration that for a particularly simple adaptation of the steam housing to any Combination of inlet housing and condenser one extensive use of standard components under warranty a high degree of flexibility in the design of the Flow channel should be provided.
- standard components are in particular the cylindrical jacket-shaped first and the conical shell-shaped second shell part is provided.
- the first The jacket part is for a connection to the radial flange of the inlet housing provided, which is independent of the power size of the steam turbine in standard dimensions can be executed.
- the second part of the jacket is for provided the connection to the capacitor and accordingly its usually standardized dimensioning also executed in standard dimensions.
- the cone-shaped Training of the second shell part favors it Use in the diffuser area.
- the leadership element together with the second shell part in the outer area and the inner hub in the interior form a diffuser with an annular shape Cross-section, in particular through a suitable dimensioning of the first, cone-shaped hub part simple way for a particularly favorable flow behavior can be designed.
- the performance variable-dependent adjustment then takes place comparatively simple way through the cone-shaped Guide element that is within the first shell part is arranged and the inflow cross section for the steam the selected outlet cross section of the upstream inlet housing limited.
- the guide element expediently extends on the input side up to in the direction of flow of the exhaust steam seen last row of blades. That way is a Fluidically particularly favorable transition from the inlet housing reachable in the outflow area, so that the Diffuser function ensured in a particularly reliable manner.
- the advantages achieved with the invention are in particular in that through the first and second shell parts of the outer jacket in a particularly simple manner using standard components a connection of the steam housing both to the upstream Entry housing as well as on the downstream Capacitor is made possible by the guide element an adaptation to the specific depending on the required performance selected entry housing is guaranteed.
- the guide element is also a fluidically favorable Formation of the flow area reached, being straight in combination with the cone-shaped hub part of the inner hub even with varying flow geometry of the inlet housing a reliable acting circular diffuser can be formed.
- FIG. 1 An embodiment of the invention is based on a Drawing explained in more detail.
- the figure shows schematically a steam turbine in longitudinal section.
- the steam turbine 1 according to the figure comprises an exhaust steam housing 2, by the steam in the steam turbine 1 expanded in axial Outflow direction of a not shown in the figure, the steam turbine 1 can be supplied downstream capacitor is.
- the steam turbine 1 is in the embodiment intended for use as an industrial turbine and for a mechanical one Power of about 6 to 8 MW designed. alternative can the steam turbine 1 but also for use as a power plant turbine with comparatively higher mechanical performance be provided.
- a radial bearing Repository 4 for the turbine runner 6 of the steam turbine 1 arranged.
- the turbine runner 6 is also in one Number of others designed as radial and / or axial bearings Bearing 8 rotatably supported about its central axis 10.
- This in an inner hub 12 arranged end bearing 4 comprises bearing parts 14, 16, which together form a bearing housing for the actual Form camp 18 of the repository 4. More details regarding the design of the repository 4 and the associated Sealing arrangement can also be seen from the figure; for the sake of clarity, however, they are not at this point discussed.
- the turbine runner 6 is in a front area 24 of one Inlet housing 26 surrounded, to the inlet of steam a steam collecting chamber 28 is arranged in the steam turbine 1. High pressure passes through the steam collecting space 28 Steam into the interior of the inlet casing and thus into the Area of the blades 20 and the guide vanes 22 where it relaxes while working. In a flow direction In contrast, the rear region 30 of the steam is the turbine runner 6 surrounded by the evaporator housing 2, the one circumferential radial flange 32 directly with the inlet housing 26 is connected.
- the steam turbine 1 using a large number of standardized ones Components manufactured.
- the exhaust steam housing 2 has an outer jacket 34 on the first, cylindrical jacket-shaped jacket part 36 includes.
- the jacket part 36 is dimensioned, especially with regard to its diameter, adapted to the radial flange 32 and directly on this connected.
- the jacket part 36 is on the steam outlet side via a circumferential one Stiffening ring 38 with a second, cone-shaped Sheath part 40 connected, which in turn on the steam outlet side via a circumferential radial flange 42 directly on the connection flange of the capacitor is connected.
- the Radial flange 42 is dimensioned also standardized and to the standard dimensions of the connection flange adapted to the capacitor.
- the steam turbine 1 is designed in a modular design and by choosing a suitable module for the entry housing 26 adapted to a predetermined power level.
- the adaptation the size of the service is maintained the standardized dimensions suitable for the radial flange 32 Choice of the internal geometry, for example of the inlet housing 26.
- the evaporation housing 2 to the inlet housing 26 is inside of the outer jacket 34 on the stiffening ring 38 a conical jacket Guide element 44 for guiding the exhaust steam flow arranged.
- the guide element 44 extends on the input side up to the last row seen in the direction of flow of the exhaust steam 46 of the blades 20 and thereby forms a radial seal the blades 20 of the last row 46 to the outer jacket 34.
- the final bearing 4 is together with the inner hub 12 by a a lower area through the exhaust steam housing 2, supported on a foundation block, not shown Carrier 52 held.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Description
Claims (2)
- Dampfturbine (1) mit einem Abdampfgehäuse (2), dessen Außenmantel (34) einen ersten, zylindermantelförmigen Mantelteil (36) umfaßt, der über einen Versteifungsring (38) mit einem zweiten, kegelmantelförmigen Mantelteil (40) verbunden ist, wobei zur Führung des Abdampfstromes innerhalb des Außenmantels (34) am Versteifungsring (38) ein kegelmantelförmiges Führungselement (44) angeordnet ist, und mit einem Turbinenläufer (6), der in einem innerhalb des Abdampfgehäuses (2) angeordneten, von einer Innennabe (12) umgebenen Endlager (4) gelagert ist, wobei die Innennabe (12) ein erstes, im wesentlichen kegelmantelförmiges Nabenteil (48) und ein zweites, im wesentlichen zylindermantelförmiges Nabenteil (50) umfaßt.
- Dampfturbine (1) nach Anspruch 1, deren Führungselement (44) sich eingangsseitig bis über die in Strömungsrichtung des Abdampfes gesehen letzte Laufschaufelreihe erstreckt.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19846224 | 1998-10-07 | ||
DE19846224A DE19846224A1 (de) | 1998-10-07 | 1998-10-07 | Dampfturbine mit einem Abdampfgehäuse |
PCT/DE1999/003080 WO2000020727A1 (de) | 1998-10-07 | 1999-09-24 | Dampfturbine mit einem abdampfgehäuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1121509A1 EP1121509A1 (de) | 2001-08-08 |
EP1121509B1 true EP1121509B1 (de) | 2003-06-18 |
Family
ID=7883719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99955798A Expired - Lifetime EP1121509B1 (de) | 1998-10-07 | 1999-09-24 | Dampfturbine mit einem abdampfgehäuse |
Country Status (4)
Country | Link |
---|---|
US (1) | US6406252B2 (de) |
EP (1) | EP1121509B1 (de) |
DE (2) | DE19846224A1 (de) |
WO (1) | WO2000020727A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7731475B2 (en) * | 2007-05-17 | 2010-06-08 | Elliott Company | Tilted cone diffuser for use with an exhaust system of a turbine |
US20110088379A1 (en) * | 2009-10-15 | 2011-04-21 | General Electric Company | Exhaust gas diffuser |
US9249687B2 (en) | 2010-10-27 | 2016-02-02 | General Electric Company | Turbine exhaust diffusion system and method |
JP2012112359A (ja) * | 2010-11-26 | 2012-06-14 | Toshiba Corp | 軸流排気タービンの軸受台カバーおよび軸流排気タービン |
EP2969758B1 (de) * | 2013-03-13 | 2018-01-03 | United Technologies Corporation | Motoraufhängungssystem |
US9617873B2 (en) * | 2014-09-15 | 2017-04-11 | Siemens Energy, Inc. | Turbine exhaust cylinder / turbine exhaust manifold bolted stiffening ribs |
KR101914870B1 (ko) * | 2017-06-28 | 2018-12-28 | 두산중공업 주식회사 | 가스터빈의 분해 및 조립방법과 이에 의해 조립된 가스터빈 |
CN114508388B (zh) * | 2021-12-29 | 2023-07-18 | 东方电气集团东方汽轮机有限公司 | 一种双排汽联合汽阀导流结构 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1034509A (en) * | 1975-10-14 | 1978-07-11 | John Korta | Vane rotator assembly for a gas turbine |
JPS61160502A (ja) * | 1985-01-09 | 1986-07-21 | Fuji Electric Co Ltd | タ−ビンケ−シングの流れガイド取付方法 |
CH672004A5 (de) * | 1986-09-26 | 1989-10-13 | Bbc Brown Boveri & Cie | |
DE4425353C2 (de) * | 1994-07-18 | 2001-10-18 | Abb Patent Gmbh | Baukastensystem mit standarisierten Teilen zur Erstellung einer Dampfturbine |
US5494405A (en) * | 1995-03-20 | 1996-02-27 | Westinghouse Electric Corporation | Method of modifying a steam turbine |
DE59805811D1 (de) * | 1997-05-21 | 2002-11-07 | Siemens Ag | Lageranordnung für eine dampfturbinenanlage |
-
1998
- 1998-10-07 DE DE19846224A patent/DE19846224A1/de not_active Withdrawn
-
1999
- 1999-09-24 DE DE59906036T patent/DE59906036D1/de not_active Expired - Lifetime
- 1999-09-24 WO PCT/DE1999/003080 patent/WO2000020727A1/de active IP Right Grant
- 1999-09-24 EP EP99955798A patent/EP1121509B1/de not_active Expired - Lifetime
-
2001
- 2001-04-09 US US09/829,300 patent/US6406252B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE59906036D1 (de) | 2003-07-24 |
DE19846224A1 (de) | 2000-04-20 |
US20010031200A1 (en) | 2001-10-18 |
WO2000020727A1 (de) | 2000-04-13 |
EP1121509A1 (de) | 2001-08-08 |
US6406252B2 (en) | 2002-06-18 |
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