EP1022439B1 - Gehäuse für eine Dampf- oder eine Gasturbine - Google Patents
Gehäuse für eine Dampf- oder eine Gasturbine Download PDFInfo
- Publication number
- EP1022439B1 EP1022439B1 EP99810037A EP99810037A EP1022439B1 EP 1022439 B1 EP1022439 B1 EP 1022439B1 EP 99810037 A EP99810037 A EP 99810037A EP 99810037 A EP99810037 A EP 99810037A EP 1022439 B1 EP1022439 B1 EP 1022439B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flanges
- facing away
- wall thickness
- facing
- housing
- 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
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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
- F01D25/26—Double casings; Measures against temperature strain in casings
-
- 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
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
Definitions
- the invention relates to a housing for a steam or gas turbine, which consists of a shell and two flanges.
- Compressor housings for gas turbines consist of a shell and there are two flanges. These housings have upper and lower areas a pseudo flange on the shell.
- these have the disadvantage that with Operation of the gas turbine due to the higher mean temperature in the area of Pseudo flange larger radial strains occur and thus the housing of deviates from its round shape.
- These deformations lead to a reduced Efficiency because of the gap between the housing and the ends of the Turbine blades enlarged and steam or air unhindered at this point can flow through without performing work on the turbine.
- Housing for steam turbines consist of a shell and there are two flanges and vertical ones in the horizontal flanges Have slots.
- the radial becomes Round bowl shape is an ellipsoidal shape, with the bowl facing upwards expands and the two flanges are moved slightly inwards.
- axial the radial effects affect due to the different temperature distribution different within the housing and thus also lead to one Deformation.
- US-A-4,551,065 discloses a housing according to the preamble of claim 1.
- GB-A-2 0 035 12 discloses a method of manufacturing a casing for a gas turbine.
- expensive Constructions and assembly devices can be avoided.
- the object is achieved in that the shell different Wall thicknesses in an upper area facing away from the flanges, in two middle areas and in two lower areas facing the flanges has, the wall thickness of the upper region facing away from the flanges compared to the wall thickness of the lower areas facing the flanges is reinforced and the wall thickness of the central areas is variable, so that the upper area facing away from the flanges and the lower area facing away from the flanges facing areas continuously merge.
- An advantage of this invention is that by varying the wall thickness Shell of the housing undergoes deformation in an ellipsoidal shape both in radial Direction as well as in the axial direction is significantly reduced.
- the housing has thus a slight radial play between the housing and the ends of the Turbine blades and thus has a significantly improved efficiency compared to the prior art.
- Overall, the invention is a improved efficiency of 0.2% to 0.3% of a steam turbine achieved.
- the single figure shows a section through an embodiment of a housing according to the invention.
- the single figure shows a section through an embodiment of a Housing 1 according to the invention, which is used for steam or gas turbines becomes.
- the entire case consists of two equal halves, only one of which is shown.
- the housing 1 consists of a shell 2 and two flanges 3, soft for attachment to the flanges of the second half, not shown Housing 1 is used.
- the wall thickness of the shell 2 varies in different areas.
- An upper area 5 facing away from the flanges is opposite the lower one Flanges facing areas 7 reinforced. In the illustrated embodiment corresponds to the wall thickness of the upper region 5 facing away from the flanges 1.5 times the wall thickness of the lower areas facing the flanges 7.
- the reinforcement of the upper region 5 facing away from the flanges no more than twice the Wall thickness of the lower areas 7 facing the flanges should have.
- the upper area 5 facing away from the flanges and the lower area facing the flanges facing areas 7 are marked on each side by a central area 6 connected.
- the wall thickness of these middle areas 6 varies, so that on each Since the two adjacent areas 5,7 merge continuously.
- the upper area facing away from the flanges 5 at 45 ° around the central axis 4 of the housing 1. After that the middle area 6 adjoins on both sides with 15 °.
Description
- 1
- Gehäuse
- 2
- Schale
- 3
- Flansch
- 4
- Mittlere Achse
- 5
- Oberer Bereich
- 6
- Mittlere Bereiche
- 7
- Untere Bereiche
Claims (4)
- Gehäuse (1) für eine Dampf- oder eine Gasturbine, bestehend aus zwei halbzylindrischen Schalen (2), die in der Ebene der Gehäuseachse über Flansche (3) verbunden sind,
dadurch gekennzeichnet, dass
jede der Schalen (2) verschiedene Wandstärken in einem oberen, den Flanschen abgewandten Bereich (5), in zwei mittleren Bereichen (6) und in zwei unteren, den Flanschen zugewandten Bereichen (7) aufweist, wobeidie Wandstärke des oberen, den Flanschen abgewandten Bereichs (5) gegenüber der Wandstärke der unteren, den Flanschen zugewandten Bereiche (7) verstärkt ist unddie Wandstärke der mittleren Bereiche (6) variabel ist, so dass der obere, den Flanschen abgewandte Bereich (5) und die unteren, den Flanschen zugewandten Bereiche (7) stetig ineinander übergehen. - Gehäuse (1) nach Anspruch 1,
dadurch gekennzeichnet, dass
der obere, den Flanschen abgewandte Bereich (5) in einem Winkel von 45° um die Mittelachse (4) des Gehäuses (1) angeordnet ist und die mittleren Bereiche (6) sich mit einem Winkel von 15° daran anschliessen. - Gehäuse (1) nach Anspruch 3
dadurch gekennzeichnet, dass
die Wandstärke des oberen, den Flanschen abgewandten Bereichs (5) maximal das 2fache der Wandstärke der unteren, den Flanschen zugewandten Bereiche (7) hat. - Gehäuse (1) nach Anspruch 3,
dadurch gekennzeichnet, dass
die Wandstärke des oberen, den Flanschen abgewandten Bereichs (5) das 1.5fache der Wandstärke der unteren, den Flanschen zugewandten Bereiche (7) hat.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99810037A EP1022439B1 (de) | 1999-01-20 | 1999-01-20 | Gehäuse für eine Dampf- oder eine Gasturbine |
DE59909395T DE59909395D1 (de) | 1999-01-20 | 1999-01-20 | Gehäuse für eine Dampf- oder eine Gasturbine |
US09/482,082 US6336789B1 (en) | 1999-01-20 | 2000-01-13 | Casing for a steam or gas turbine |
JP2000008323A JP4347977B2 (ja) | 1999-01-20 | 2000-01-17 | 蒸気タービン又はガスタービンのためのケーシング |
RU2000101728/06A RU2244835C2 (ru) | 1999-01-20 | 2000-01-19 | Корпус для паровой или газовой турбины |
CN00100518.9A CN1268833C (zh) | 1999-01-20 | 2000-01-20 | 汽轮机或燃气轮机的壳体 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99810037A EP1022439B1 (de) | 1999-01-20 | 1999-01-20 | Gehäuse für eine Dampf- oder eine Gasturbine |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1022439A1 EP1022439A1 (de) | 2000-07-26 |
EP1022439B1 true EP1022439B1 (de) | 2004-05-06 |
Family
ID=8242634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99810037A Expired - Lifetime EP1022439B1 (de) | 1999-01-20 | 1999-01-20 | Gehäuse für eine Dampf- oder eine Gasturbine |
Country Status (6)
Country | Link |
---|---|
US (1) | US6336789B1 (de) |
EP (1) | EP1022439B1 (de) |
JP (1) | JP4347977B2 (de) |
CN (1) | CN1268833C (de) |
DE (1) | DE59909395D1 (de) |
RU (1) | RU2244835C2 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE347023T1 (de) * | 2003-06-26 | 2006-12-15 | Alstom Technology Ltd | Ein halter für ein reflektierendes ziel, angewendet zur messung der durchbiegung eines turbinengehäuses |
EP1541810A1 (de) * | 2003-12-11 | 2005-06-15 | Siemens Aktiengesellschaft | Verwendung einer Wärmedämmschicht für ein Bauteil einer Dampfturbine und eine Dampfturbine |
DE102005015150A1 (de) * | 2005-03-31 | 2006-10-05 | Alstom Technology Ltd. | Maschinengehäuse |
US7681601B2 (en) * | 2005-08-24 | 2010-03-23 | Alstom Technology Ltd. | Inner casing of a rotating thermal machine |
CH698879B1 (de) * | 2006-06-30 | 2009-11-30 | Alstom Technology Ltd | Strömungsmaschine. |
US8128353B2 (en) * | 2008-09-30 | 2012-03-06 | General Electric Company | Method and apparatus for matching the thermal mass and stiffness of bolted split rings |
EP2189630A1 (de) * | 2008-11-19 | 2010-05-26 | Siemens Aktiengesellschaft | Gasturbine, Leitschaufelträger für eine solche Gasturbine und Gas- bzw. Dampfturbinenanlage mit einer solchen Gasturbine |
CH700679A1 (de) * | 2009-03-17 | 2010-09-30 | Alstom Technology Ltd | Abstützung für eine turbine. |
EP2423454A1 (de) * | 2010-08-25 | 2012-02-29 | Siemens Aktiengesellschaft | Gehäuse für Strömungsmaschine sowie Verfahren zur Herstellung |
US8342009B2 (en) | 2011-05-10 | 2013-01-01 | General Electric Company | Method for determining steampath efficiency of a steam turbine section with internal leakage |
US9279342B2 (en) | 2012-11-21 | 2016-03-08 | General Electric Company | Turbine casing with service wedge |
US9260281B2 (en) | 2013-03-13 | 2016-02-16 | General Electric Company | Lift efficiency improvement mechanism for turbine casing service wedge |
JP2016113992A (ja) * | 2014-12-16 | 2016-06-23 | 三菱重工業株式会社 | 圧力容器およびタービン |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2034825A (en) * | 1978-11-14 | 1980-06-11 | Rolls Royce | Casing for gas turbine engine |
GB2035152B (en) * | 1978-11-27 | 1982-08-11 | United Technologies Corp | Method of fabricating a split case for a gas turbine engine |
US4551065A (en) * | 1982-12-13 | 1985-11-05 | Becker John H | Composite horizontally or vertically split casing with variable casing ends |
US4900222A (en) * | 1988-12-23 | 1990-02-13 | Rockwell International Corporation | Rotary pump inlet velocity profile control device |
DE19544011B4 (de) * | 1995-11-27 | 2004-10-07 | Alstom | Strömungsmaschine |
US5605438A (en) * | 1995-12-29 | 1997-02-25 | General Electric Co. | Casing distortion control for rotating machinery |
DE19806809C1 (de) * | 1998-02-18 | 1999-03-25 | Siemens Ag | Turbinengehäuse |
-
1999
- 1999-01-20 DE DE59909395T patent/DE59909395D1/de not_active Expired - Lifetime
- 1999-01-20 EP EP99810037A patent/EP1022439B1/de not_active Expired - Lifetime
-
2000
- 2000-01-13 US US09/482,082 patent/US6336789B1/en not_active Expired - Lifetime
- 2000-01-17 JP JP2000008323A patent/JP4347977B2/ja not_active Expired - Fee Related
- 2000-01-19 RU RU2000101728/06A patent/RU2244835C2/ru not_active IP Right Cessation
- 2000-01-20 CN CN00100518.9A patent/CN1268833C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2000213305A (ja) | 2000-08-02 |
CN1268833C (zh) | 2006-08-09 |
US6336789B1 (en) | 2002-01-08 |
DE59909395D1 (de) | 2004-06-09 |
JP4347977B2 (ja) | 2009-10-21 |
CN1261643A (zh) | 2000-08-02 |
EP1022439A1 (de) | 2000-07-26 |
RU2244835C2 (ru) | 2005-01-20 |
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