EP2411630A1 - Axialturbomaschinenrotor mit schaufelkühlung - Google Patents
Axialturbomaschinenrotor mit schaufelkühlungInfo
- Publication number
- EP2411630A1 EP2411630A1 EP10715130A EP10715130A EP2411630A1 EP 2411630 A1 EP2411630 A1 EP 2411630A1 EP 10715130 A EP10715130 A EP 10715130A EP 10715130 A EP10715130 A EP 10715130A EP 2411630 A1 EP2411630 A1 EP 2411630A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rotor
- blade
- cooling
- axial
- radially
- 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
- 238000001816 cooling Methods 0.000 title claims abstract description 55
- 239000002826 coolant Substances 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241000191291 Abies alba Species 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
- F01D5/02—Blade-carrying members, e.g. rotors
- F01D5/08—Heating, heat-insulating or cooling means
- F01D5/085—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor
- F01D5/087—Heating, heat-insulating or cooling means cooling fluid circulating inside the rotor in the radial passages of the rotor disc
-
- 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
- F01D25/08—Cooling; Heating; Heat-insulation
- F01D25/12—Cooling
-
- 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
- F05D2260/00—Function
- F05D2260/20—Heat transfer, e.g. cooling
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
Definitions
- the invention relates to a Axialturbomaschinenrotor with a Schaufelkuhlung, in particular a Axialturbomaschinenrotor with a blade ring, which is formed by a plurality of Laufschaufein, which can be cooled by means of impact cooling.
- a turbomachine such as a gas turbine, includes a compressor and a turbine coupled via a rotor.
- the rotor includes blades for the compressor and rotor for the turbine, wherein work is performed on a working fluid in the compressor and work is recovered from the working fluid in the turbine.
- the working medium is heated upstream of the turbine, so that the components of the turbine are exposed to a high temperature load.
- the rotor is provided with discs which are strung on a shaft and each have on their outer edge the Laufschaufein which forms a blade ring. Due to high mechanical and thermal loads, the life of the disks and the rotor blades is limited.
- the object of the invention is to provide a Axialturbomaschinenrotor, in the rotor disk and blades have a long life.
- the axial turbomachinery rotor has a rotor disk and a rotor blade ring which has a plurality of rotor blades each having a blade root with which the rotor blade is fixed radially outwards on the rotor disk, the blade root having a form fit with the rotor disk at its outer edge is engaged in that during operation of the axial turbomachinery rotor, a gap between the blade and the rotor disk is formed on a predetermined surface area of the rotor disk, in which a plurality of impact cooling openings is arranged, through which a cooling medium from the interior of the rotor disk forth streaming into the gap is, with which
- 'V. can be cooled by the cooling medium.
- the use of Kuhlmediums is effective, whereby the Axialturboma j ⁇ schin rotor saving resources is operable.
- the rotor disk at its outer edge t-; C has a holding recess, in which the blade root engages with its foot neck, which projects radially inwards and at least one in the circumferential direction and / or in the axial direction of the réellehals projecting foot tooth, which has a radially outer flank and a radially inner flank, which is embraced with a provided in the retaining recess perturbyingaussparung the predominantly leopard such that during operation of the turbomachine rotor of the blade root with the radially outer flank is applied to the predominantlybianaussparung and between the radially inner flank and the legislativeaussparung the gap is formed, wherein in the inner flank facing surface area of the contemplatbianaussparung at least one of the impingement cooling openings is provided so that the blade root on the radially inner flank with the cooling j ⁇ medium, which flows through the impingement cooling opening, can be cooled down.
- the rotor disk in the region of the holding recess in which voltage peaks occur during operation of the axial turbomachinery rotor, advantageously flows through the cooling medium and is thus cooled.
- the blade root is cooled by the impingement cooling, whereby heat is effectively dissipated from the blade root with the cooling medium.
- a temperature level in which the service life of the rotor disk and of the rotor blades is high can be set in the rotor disk in the area of the holding recess in the rotor blade.
- the foot teeth are arranged and shaped on the toe neck such that the blade root has a Christmas tree profile, wherein theticianiereaussparept are formed as grooves.
- the foot teeth and the grooves preferably extend in the axial direction of the axial turbomachinery rotor.
- the gaps are open to the outside, so that the cooling medium can flow away from the gaps to the outside of the rotor disk. As a result, can flow through the baffle cooling holes constantly cooling medium, whereby a continuous cooling of the rotor disk and the blades is achieved.
- the rotor blade preferably has an aerodynamically effective blade and an aerodynamically effective blade arranged radially between the blade and the blade root.
- Platform which is arranged with its radially inner side forming the gap at a radial distance from the outer edge of the rotor disk, wherein in the inner side facing surface region of the outer edge of at least one of the impingement cooling holes is provided so that the blade platform on its radially inner side with the cooling medium, which flows through the impingement cooling hole, is reballows coolable.
- the impingement cooling holes are formed such that the cooling medium flowing out of the impingement cooling holes is substantially perpendicular to the surface of the blade.
- the thermal efficiency of the impingement cooling is effectively high.
- the rotor disk has a plurality of cooling channels, which open into the gaps via the impingement cooling openings.
- the axial turbomachinery rotor is preferably an axial turbine rotor and the cooling medium is preferably cooling air.
- FIG. 1 is a perspective view of a section of a disc of an axial turbine rotor according to the invention.
- FIG. 2 shows a perspective view of a section of a disk with a blade of the axial turbine rotor according to the invention.
- an axial-turbine rotor 1 has a disk which is arranged rotationally symmetrically around the axis of rotation of the axial-turbine rotor 1.
- At the outer edge 13 of the disc 2 is a plurality of over the circumference the disc 2 juxtaposed blades 3, wherein the blades 3 form a blade ring.
- Each blade 3 has an airfoil 4, with which the blade 3 cooperates with a working medium of the axial turbine rotor 1.
- the blade 4 is arranged on the disc 2 extending radially outward, wherein the blade 3 at the radially inner end of the blade 4 has a blade root 5, with which the blade 4 is fixed to the disc 2.
- a blade platform 6 is formed on the blade 3, which extends in the axial direction and in the circumferential direction of the axial turbine rotor 1, wherein the radially outer side of the blade platform 6 the working medium and the radially inner side 18 of the blade platform 6 of Disk 2 are arranged facing.
- the blade root 5 has a foot neck 7 which extends radially inwardly from the blade platform 6.
- a plurality of foot teeth 8 are shown pointing in the circumferential direction of the axial turbine rotor 1, the foot teeth 8 being arranged symmetrically to the longitudinal axis of the foot neck 7.
- a retaining recess 9 is formed for each blade root 5, the grooves 10, into which the rougee 8 engage.
- the retaining recess 9 with its grooves 10 is modeled on the contour of the blade root 5 with the foot teeth 8, so that the blade root 5 is in positive engagement with the retaining recess 9.
- the configured leoparde 8 are arranged on the toe neck 7 extending substantially in the axial direction of the axial turbine rotor 1, so that in the same way the grooves 10 also have a course in the axial direction of the axial turbine rotor 1. Furthermore, the foot teeth 8 are arranged parallel to each other and thereby the grooves 10 are also arranged parallel to each other, so that the blade 3 for assembly to the disc 2 or for disassembly of the disc 2 with its blade root 5 in the axial direction in the retaining recess 9 or ., Can be pushed out of the retaining recess 9. Further, the foot teeth 8 are designed with a round contour and also the grooves 8 with a corresponding circular contour, so that due to notch stress effects, the voltage level during operation of the axial turbine rotor 1 in the disc 2 and in the blade root 5 is low.
- Each foot tooth 8 has a radially inner flank 16 and a radially outer flank 17, wherein the flanks
- a plurality of impingement cooling holes 12 flows through the cooling air. Occurs the cooling air from the impingement cooling 12th from, the cooling air flows into the gap 11 and cools the complicatiere 8 at the radially inner edge 16 by impingement cooling.
- the retaining recess 9 is frontally formed on the disc 2 open, so that are formed by the column 11 at the radially inner flanks 16 outwardly open cooling channels. In the cooling channels passes through the impingement cooling holes 12, the cooling air flowing through the cooling channels and the front side of the disc 2 exits.
- the blade platform 6 is arranged at the radial distance on the outer edge 13 of the disc 2, so that between the disc outer edge 13 and the radially inner side 18 of the blade platform 6, a gap 14 is formed. Below the radially inner side 18 is. In the region of the gap 14, a plurality of impingement cooling openings 15 are formed in the outer edge of the pane 13, through which cooling air flows. The cooling air impinges on the radially inner side 18, so that the blade platform 6 is cooled by the cooling air by impingement cooling. Through the gap 14, a cooling channel is formed on the outer edge 13 of the disc, which is open to the blade platform 6 to the outside.
- the cooling air can escape from the impingement cooling openings 15 on the outer edge 13 of the blade on the blade platform 6 to the outside.
- the radially outer side of the blade platform 6 is in contact with hot gas, whereby a high heat input into the blade platform 6 during operation of the axial turbine rotor is present 1.
- the transmitted to the radially inner side 18 of the blade platform 6 to the cooling air heat is transmitted through Convection from the Schaufelt 6 transported away.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10715130.0A EP2411630B1 (de) | 2009-03-27 | 2010-03-25 | Axialturbomaschinenrotor mit Schaufelkühlung |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09004471A EP2233692A1 (de) | 2009-03-27 | 2009-03-27 | Axialturbomaschinenrotor mit Schaufelkühlung |
| EP10715130.0A EP2411630B1 (de) | 2009-03-27 | 2010-03-25 | Axialturbomaschinenrotor mit Schaufelkühlung |
| PCT/EP2010/053866 WO2010108972A1 (de) | 2009-03-27 | 2010-03-25 | Axialturbomaschinenrotor mit schaufelkühlung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2411630A1 true EP2411630A1 (de) | 2012-02-01 |
| EP2411630B1 EP2411630B1 (de) | 2013-06-19 |
Family
ID=41347504
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09004471A Withdrawn EP2233692A1 (de) | 2009-03-27 | 2009-03-27 | Axialturbomaschinenrotor mit Schaufelkühlung |
| EP10715130.0A Not-in-force EP2411630B1 (de) | 2009-03-27 | 2010-03-25 | Axialturbomaschinenrotor mit Schaufelkühlung |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP09004471A Withdrawn EP2233692A1 (de) | 2009-03-27 | 2009-03-27 | Axialturbomaschinenrotor mit Schaufelkühlung |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120070310A1 (de) |
| EP (2) | EP2233692A1 (de) |
| JP (1) | JP5314188B2 (de) |
| CN (1) | CN102365423A (de) |
| WO (1) | WO2010108972A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9388704B2 (en) | 2013-11-13 | 2016-07-12 | Siemens Energy, Inc. | Vane array with one or more non-integral platforms |
| US20160146016A1 (en) * | 2014-11-24 | 2016-05-26 | General Electric Company | Rotor rim impingement cooling |
| KR101677961B1 (ko) * | 2015-11-03 | 2016-11-21 | 한국항공우주연구원 | 가스터빈 엔진의 터빈 디스크 |
| US10458242B2 (en) | 2016-10-25 | 2019-10-29 | Pratt & Whitney Canada Corp. | Rotor disc with passages |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2931624A (en) * | 1957-05-08 | 1960-04-05 | Orenda Engines Ltd | Gas turbine blade |
| US3501249A (en) * | 1968-06-24 | 1970-03-17 | Westinghouse Electric Corp | Side plates for turbine blades |
| US4344738A (en) * | 1979-12-17 | 1982-08-17 | United Technologies Corporation | Rotor disk structure |
| JPS5999101U (ja) * | 1982-12-24 | 1984-07-04 | 株式会社日立製作所 | ガスタ−ビンの動翼固定装置 |
| CH670406A5 (de) * | 1987-03-19 | 1989-06-15 | Bbc Brown Boveri & Cie | |
| US5800124A (en) * | 1996-04-12 | 1998-09-01 | United Technologies Corporation | Cooled rotor assembly for a turbine engine |
| DE19705441A1 (de) * | 1997-02-13 | 1998-08-20 | Bmw Rolls Royce Gmbh | Turbinen-Laufradscheibe |
| EP1413715A1 (de) * | 2002-10-21 | 2004-04-28 | Siemens Aktiengesellschaft | Prallkühlung der Plattform einer Gasturbinenlaufschaufel |
| US8128365B2 (en) * | 2007-07-09 | 2012-03-06 | Siemens Energy, Inc. | Turbine airfoil cooling system with rotor impingement cooling |
-
2009
- 2009-03-27 EP EP09004471A patent/EP2233692A1/de not_active Withdrawn
-
2010
- 2010-03-25 US US13/258,624 patent/US20120070310A1/en not_active Abandoned
- 2010-03-25 EP EP10715130.0A patent/EP2411630B1/de not_active Not-in-force
- 2010-03-25 JP JP2012501303A patent/JP5314188B2/ja not_active Expired - Fee Related
- 2010-03-25 WO PCT/EP2010/053866 patent/WO2010108972A1/de not_active Ceased
- 2010-03-25 CN CN201080014157XA patent/CN102365423A/zh active Pending
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2010108972A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2012522160A (ja) | 2012-09-20 |
| US20120070310A1 (en) | 2012-03-22 |
| EP2411630B1 (de) | 2013-06-19 |
| CN102365423A (zh) | 2012-02-29 |
| WO2010108972A1 (de) | 2010-09-30 |
| JP5314188B2 (ja) | 2013-10-16 |
| EP2233692A1 (de) | 2010-09-29 |
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