EP1861585A1 - Wärmestausegment - Google Patents
WärmestausegmentInfo
- Publication number
- EP1861585A1 EP1861585A1 EP06725192A EP06725192A EP1861585A1 EP 1861585 A1 EP1861585 A1 EP 1861585A1 EP 06725192 A EP06725192 A EP 06725192A EP 06725192 A EP06725192 A EP 06725192A EP 1861585 A1 EP1861585 A1 EP 1861585A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- joining
- radially
- axially
- contour
- heat
- 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
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
- F01D11/14—Adjusting or regulating tip-clearance, i.e. distance between rotor-blade tips and stator casing
- F01D11/20—Actively adjusting tip-clearance
- F01D11/24—Actively adjusting tip-clearance by selectively cooling-heating stator or rotor components
-
- 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
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
-
- 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
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/642—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins using maintaining alignment while permitting differential dilatation
-
- 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
- F05D2230/64—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins
- F05D2230/644—Assembly methods using positioning or alignment devices for aligning or centring, e.g. pins for adjusting the position or the alignment, e.g. wedges or eccenters
-
- 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
- F05D2240/00—Components
- F05D2240/10—Stators
- F05D2240/11—Shroud seal segments
Definitions
- the invention relates to a heat spreader for local limitation of a flow channel within a flow rotating machine, in particular a gas turbine plant, opposite to a radially surrounding the flow channel stator housing, with two axially opposite joining contours, which are respectively engageable with two along the flow channel axially adjacent components.
- Heat accumulation segments of the type described above are part of axial flow-through turbomachines through which flow for compression or targeted expansion gaseous working media and due to their high process temperatures, the thermally heavily loaded with the hot working fluids system components.
- the guide vanes arranged axially one after the other in the rows of rotor blades and vanes are acted upon directly by the combustion gases produced in the combustion chamber.
- so-called heat accumulation segments which are provided on the stator side between two guide vanes arranged axially adjacent to one another, ensure a gas-tight bridge-like seal between the two axially adjacent one another arranged guide blade rows.
- Correspondingly designed heat accumulation segments can also be used along the rotor unit. These are each to be mounted on the rotor side between two axially adjacent rows of blades in order to protect rotor-internal areas from excessive heat input.
- the flow channel K is bounded by stator vanes 4 attached to the stator, whose guide vanes 41 protrude radially into the flow channel K from the outside.
- the guide vanes 4 have for the gas-tight separation of the flow channel K relative to the stator-mounted components on a platform 42 which covers both the axial region immediately around the vane blade 41 as a one-piece component in the form of a balcony-like overhang 42 ', the area between two rows of vanes spans and radially opposite the blade tips.
- the guide vanes 4 are arranged in the circumferential direction of the gas turbine in each row of guide blades, it is true that within a row of guide vanes in the circumferential direction immediately adjacent arranged vanes 4 along their axial side edges 5 to connect gas-tight with each other. This purpose is served over the entire extent of the side edge 5 extending belt seal 6, which opens on both sides in corresponding grooves along the side edges of two adjacent vanes.
- the band seal 6 ensures, in particular, that the platform 42 cooling air supplied to the stator can not escape into the flow channel K and is therefore available through appropriate cooling channels within the guide vane for effective cooling of all the vane areas exposed to the hot gases.
- the heat spreader segment can be easily separated from the other vane by loosening the joint by removing the respective vane in the circumferential direction from the stator supporting structure carrying the vane, whereby the joint connection to the heat spreader is automatically released. Since that is according to the solution according to the invention design features with respect to the joint structure, the solution according to the invention heat recovery segment will be described below with reference to a preferred embodiment.
- FIG. 2 shows a longitudinal section of a guide vane suspension within a gas turbine stage according to the prior art.
- FIG. 1 shows a partial longitudinal section through the stator-side suspension of a stator blade 4 and a heat shield segment 12 formed separately from the stator blade 4.
- the exemplary embodiment described in connection with FIG. 2, to the description of which reference is made to the introduction to the description, can also accommodate the stator blade 4 shown in FIG and the axially adjacent heat shield segment 12 to separate the flow channel K in a gastight manner with respect to the components 2 arranged on the stator side.
- the joining contour 17 has a radially oriented recess 27, which has a conically shaped contour surface 28.
- the radially oriented recess 27 is formed as a half-mold, wherein the conically shaped contour surface 28 axially facing the collar portion 23 is attached.
- the joining region 17 is also covered radially on the outside by an overhanging region 29 of the guide blade 4, with which the guide blade 4 is fastened in a stator-side support structure 7.
- an opening 30 is provided, in which a fastening pin 31, a spring element 32 and a helically shaped support member 33 are provided in the arrangement shown in the detailed illustration according to Figure 1 b.
- the mounting pin 31 has a conical outer contour 34 which, by radially lowering the mounting pin 31 in engagement with the conically shaped Contour surface 28 of the first joining contour 17 occurs.
- Radially outwardly lying, the mounting pin 31 has a cylindrically shaped portion 35 which abuts the radial guide within the opening 30 of the overhanging region 29.
- the tolerance-free joints of the upper and lower collar surfaces 24, 25 within the counter-contoured receiving contour 26 ensures a force-loaded seal in the region of the second joining region 18, as already described above. Even a reassembly of the vane 4 'is not hindered by the presence of the heat spreader segment 12. Rather, it is possible to bring the guide vane 4 'by axial approach according to the motion vector G with the second joining region 18 in contact.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Thermotherapy And Cooling Therapy Devices (AREA)
- Central Heating Systems (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Materials For Medical Uses (AREA)
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI200630599T SI1861585T1 (sl) | 2005-03-24 | 2006-03-21 | Segment toplotne zapore |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005013797A DE102005013797A1 (de) | 2005-03-24 | 2005-03-24 | Wärmestausegment |
| PCT/EP2006/060905 WO2006100237A1 (de) | 2005-03-24 | 2006-03-21 | Wärmestausegment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1861585A1 true EP1861585A1 (de) | 2007-12-05 |
| EP1861585B1 EP1861585B1 (de) | 2009-12-30 |
Family
ID=36599084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP06725192A Expired - Lifetime EP1861585B1 (de) | 2005-03-24 | 2006-03-21 | Wärmestausegment |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US7658593B2 (de) |
| EP (1) | EP1861585B1 (de) |
| AT (1) | ATE453780T1 (de) |
| AU (1) | AU2006226334B8 (de) |
| BR (1) | BRPI0609313A8 (de) |
| DE (2) | DE102005013797A1 (de) |
| MX (1) | MX2007011754A (de) |
| SI (1) | SI1861585T1 (de) |
| WO (1) | WO2006100237A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20180347399A1 (en) * | 2017-06-01 | 2018-12-06 | Pratt & Whitney Canada Corp. | Turbine shroud with integrated heat shield |
Family Cites Families (33)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB721453A (en) * | 1951-10-19 | 1955-01-05 | Vickers Electrical Co Ltd | Improvements relating to gas turbines |
| US3362160A (en) * | 1966-09-16 | 1968-01-09 | Gen Electric | Gas turbine engine inspection apparatus |
| US3391904A (en) * | 1966-11-02 | 1968-07-09 | United Aircraft Corp | Optimum response tip seal |
| US3558237A (en) * | 1969-06-25 | 1971-01-26 | Gen Motors Corp | Variable turbine nozzles |
| BE756582A (fr) * | 1969-10-02 | 1971-03-01 | Gen Electric | Ecran circulaire et support d'ecran avec dispositif de reglage de la temperature pour turbomachine |
| US3825364A (en) * | 1972-06-09 | 1974-07-23 | Gen Electric | Porous abradable turbine shroud |
| US3864056A (en) * | 1973-07-27 | 1975-02-04 | Westinghouse Electric Corp | Cooled turbine blade ring assembly |
| US3892497A (en) * | 1974-05-14 | 1975-07-01 | Westinghouse Electric Corp | Axial flow turbine stationary blade and blade ring locking arrangement |
| FR2416345A1 (fr) * | 1978-01-31 | 1979-08-31 | Snecma | Dispositif de refroidissement par impact des segments d'etancheite de turbine d'un turboreacteur |
| FR2574473B1 (fr) * | 1984-11-22 | 1987-03-20 | Snecma | Anneau de turbine pour une turbomachine a gaz |
| US5071313A (en) * | 1990-01-16 | 1991-12-10 | General Electric Company | Rotor blade shroud segment |
| GB2245316B (en) * | 1990-06-21 | 1993-12-15 | Rolls Royce Plc | Improvements in shroud assemblies for turbine rotors |
| US5169287A (en) * | 1991-05-20 | 1992-12-08 | General Electric Company | Shroud cooling assembly for gas turbine engine |
| US5165847A (en) * | 1991-05-20 | 1992-11-24 | General Electric Company | Tapered enlargement metering inlet channel for a shroud cooling assembly of gas turbine engines |
| US5593277A (en) * | 1995-06-06 | 1997-01-14 | General Electric Company | Smart turbine shroud |
| GB2310255B (en) * | 1996-02-13 | 1999-06-16 | Rolls Royce Plc | A turbomachine |
| DE19619438B4 (de) * | 1996-05-14 | 2005-04-21 | Alstom | Wärmestausegment für eine Turbomaschine |
| EP0844369B1 (de) * | 1996-11-23 | 2002-01-30 | ROLLS-ROYCE plc | Zusammenbau eines Schaufelrotors und dessen Gehäuses |
| FR2766517B1 (fr) * | 1997-07-24 | 1999-09-03 | Snecma | Dispositif de ventilation d'un anneau de turbomachine |
| US5993150A (en) * | 1998-01-16 | 1999-11-30 | General Electric Company | Dual cooled shroud |
| US6139257A (en) * | 1998-03-23 | 2000-10-31 | General Electric Company | Shroud cooling assembly for gas turbine engine |
| FR2780443B1 (fr) * | 1998-06-25 | 2000-08-04 | Snecma | Anneau de stator de turbine haute pression d'une turbomachine |
| US6183192B1 (en) * | 1999-03-22 | 2001-02-06 | General Electric Company | Durable turbine nozzle |
| US6412149B1 (en) * | 1999-08-25 | 2002-07-02 | General Electric Company | C-clip for shroud assembly |
| FR2800797B1 (fr) * | 1999-11-10 | 2001-12-07 | Snecma | Assemblage d'un anneau bordant une turbine a la structure de turbine |
| FR2803871B1 (fr) * | 2000-01-13 | 2002-06-07 | Snecma Moteurs | Agencement de reglage de diametre d'un stator de turbine a gaz |
| US6514041B1 (en) * | 2001-09-12 | 2003-02-04 | Alstom (Switzerland) Ltd | Carrier for guide vane and heat shield segment |
| US6726448B2 (en) * | 2002-05-15 | 2004-04-27 | General Electric Company | Ceramic turbine shroud |
| US6902371B2 (en) * | 2002-07-26 | 2005-06-07 | General Electric Company | Internal low pressure turbine case cooling |
| US7367776B2 (en) * | 2005-01-26 | 2008-05-06 | General Electric Company | Turbine engine stator including shape memory alloy and clearance control method |
| US7438520B2 (en) * | 2005-08-06 | 2008-10-21 | General Electric Company | Thermally compliant turbine shroud mounting assembly |
| FR2899274B1 (fr) * | 2006-03-30 | 2012-08-17 | Snecma | Dispositif de fixation de secteurs d'anneau autour d'une roue de turbine d'une turbomachine |
| FR2914350B1 (fr) * | 2007-03-30 | 2011-06-24 | Snecma | Enveloppe externe etanche pour une roue de turbine de turbomachine |
-
2005
- 2005-03-24 DE DE102005013797A patent/DE102005013797A1/de not_active Withdrawn
-
2006
- 2006-03-21 AT AT06725192T patent/ATE453780T1/de active
- 2006-03-21 SI SI200630599T patent/SI1861585T1/sl unknown
- 2006-03-21 EP EP06725192A patent/EP1861585B1/de not_active Expired - Lifetime
- 2006-03-21 DE DE502006005786T patent/DE502006005786D1/de not_active Expired - Lifetime
- 2006-03-21 BR BRPI0609313A patent/BRPI0609313A8/pt active Search and Examination
- 2006-03-21 MX MX2007011754A patent/MX2007011754A/es active IP Right Grant
- 2006-03-21 AU AU2006226334A patent/AU2006226334B8/en not_active Ceased
- 2006-03-21 WO PCT/EP2006/060905 patent/WO2006100237A1/de not_active Ceased
-
2007
- 2007-09-24 US US11/859,984 patent/US7658593B2/en active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2006100237A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006100237A1 (de) | 2006-09-28 |
| MX2007011754A (es) | 2007-12-05 |
| BRPI0609313A8 (pt) | 2017-07-25 |
| ATE453780T1 (de) | 2010-01-15 |
| AU2006226334B2 (en) | 2009-09-10 |
| DE102005013797A1 (de) | 2006-09-28 |
| AU2006226334A1 (en) | 2006-09-28 |
| US7658593B2 (en) | 2010-02-09 |
| AU2006226334B8 (en) | 2010-01-07 |
| SI1861585T1 (sl) | 2010-04-30 |
| DE502006005786D1 (de) | 2010-02-11 |
| BRPI0609313A2 (pt) | 2010-03-09 |
| US20080050224A1 (en) | 2008-02-28 |
| EP1861585B1 (de) | 2009-12-30 |
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