EP1192333B1 - Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel - Google Patents
Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel Download PDFInfo
- Publication number
- EP1192333B1 EP1192333B1 EP00942078A EP00942078A EP1192333B1 EP 1192333 B1 EP1192333 B1 EP 1192333B1 EP 00942078 A EP00942078 A EP 00942078A EP 00942078 A EP00942078 A EP 00942078A EP 1192333 B1 EP1192333 B1 EP 1192333B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- turbulators
- wall
- inclination
- walls
- turbine blade
- 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
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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
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on blades
- F01D5/187—Convection 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
- F05D2260/221—Improvement of heat transfer
- F05D2260/2212—Improvement of heat transfer by creating turbulence
Definitions
- the present invention relates to a hot gas Component, in particular a turbine blade, with at least a channel that can be acted upon by a cooling fluid and delimited by two first, opposite walls is used to improve the heat transfer between the component and the cooling fluid with one or more turbulators are provided, the turbulators of the first wall and the turbulators of the second wall have the same direction of inclination have and opposite a flow direction of the Cooling fluids are inclined at an angle of inclination.
- Such a component in the form of a gas turbine blade is from EP 0 758 932 B1 or US 5,695,321, in particular FIG. 9A is known.
- the well-known gas turbine blade is hollow and has at least one channel on which can be acted upon by a cooling fluid. hereby can increase the gas inlet temperature into the gas turbine be so that the efficiency is improved.
- the channel is of two first opposite walls limited. There are one or more turbulators on these walls provided the heat transfer between the gas turbine blade and improve the cooling fluid.
- the turbulators both walls have the same direction of inclination and are around the same angle of inclination with respect to a flow direction of the cooling fluid inclined. With such a configuration the channel can be narrowed locally by the turbulators.
- US 5,413,458 shows a gas turbine guide vane with a Platform.
- the platform is provided with a flow chamber, are arranged in the turbulators in such a way that the flow chamber flowing cooling fluid to the corners of the Platform is directed.
- the object of the present invention is therefore to provide a hot gas Provide component in which an essentially uniform channel cross-section over the entire Length of the turbulators without local restrictions.
- this object is achieved at the beginning of a component mentioned type in that the angle of inclination of the turbulators of the first wall from the angle of inclination Turbulators of the second wall is different.
- the different angles of inclination of the turbulators the first and second walls enable the turbulators to be arranged without local bottlenecks.
- the turbulators are lying down due to the different angles of inclination no longer in sections across from. Rather, the turbulators a wall practically completely alternating over its entire length arranged to the turbulators of the other wall become. This results in the direction of the length of the turbulators a uniform cross section of the channel for the Cooling fluid.
- Cross-section changes and the associated pressure losses are significantly reduced.
- the length of the first wall is advantageously greater than the length the second wall. This allows different cross sections can be selected for the component that can be subjected to hot gas.
- the first two walls curved.
- a cross section can be seen through the curved walls in the form of a wing profile for the hot gas Component can be selected. This cross section is particularly necessary for use as a turbine blade.
- the angle of inclination the turbulators of the first wall larger than the angle of inclination the turbulators of the second wall.
- the length of the turbulators the first wall is thereby reduced, while the Length of the turbulators of the second wall is increased.
- the Tilt angles are chosen so that the turbulators practically completely alternating on the two walls are arranged to each other. This essentially leads to one uniform cross-section of the channel over the entire Length of the turbulators.
- Two additional walls to limit the channel are advantageous provided that connect the first two walls together.
- the interior of the component that can be subjected to hot gas is through these two other walls into several, for example three, divided channels that are interconnected.
- the cooling fluid flows through the three channels in succession. It is advantageous when used as a gas turbine blade the first channel in which the temperature of the cooling fluid at lowest is on the inflow side of the gas turbine blade arranged.
- the two others Walls arranged at an angle to each other.
- This angular arrangement enables alignment of these additional walls in the essentially perpendicular to the first two walls.
- This Alignment optimizes the management of the Cooling fluid.
- the angular position of the other two walls is moreover better for absorbing stresses in the Suitable for use as a gas turbine blade.
- the turbulators just trained. This straight training makes it easier the demolding of the component according to the invention and cheaper the production.
- the Turbulators curved. With curved turbulators is a complete alternation of the turbulators over theirs entire length possible. The pressure losses due to changes in cross-section are minimized as much as possible.
- a gas turbine blade 10 is in the Longitudinal section and shown in cross section.
- the gas turbine blade 10 has a cooling channel 11 on the inside in three individual, essentially parallel to each other Channels 12, 13, 14 is divided.
- a cooling fluid, in particular Cooling air flows through the cooling channel 11 in the direction of the arrow 15th
- Each of the three channels 12, 13, 14 is from the two outer walls 16, 17 and one or both partitions 18, 19 limited. To improve the heat transfer between the Cooling fluid and the outer walls 16, 17 are these with turbulators 20, 21 provided.
- the two are Outer walls 16, 17 are curved and have a different Length on. This will make it for the gas turbine blade 10 required wing profile reached.
- the Outer wall 16 forms the suction side of the gas turbine blade 10, and the outer wall 17 forms the pressure side.
- the turbulators 20, 21 have the same direction of inclination and are opposite to a flow direction 22 of the cooling fluid inclined at an angle of inclination. This is for the turbulator 20 with the angle of inclination ⁇ shown in Figure 1.
- the flow direction 22 of the cooling fluid in the individual channels 12, 13, 14 runs essentially parallel to the partitions 18, 19.
- the turbulators 20 are also longer than the turbulators 21.
- the turbulators have 20 the same angle of inclination with respect to the flow direction 22 of the cooling fluid as the turbulators 21 in one Projection parallel to one of the two walls 18, 19.
- the turbulators 20, 21 in sections face the same height.
- Figure 7 and Figure 8 show a section along the line V-V as well as VI-VI in FIG. 2 for a gas turbine blade 10 the state of the art.
- the turbulators 20, 21 of the two outer walls 16, 17 alternate arranged to each other.
- the cooling fluid can in this Area evenly from one outer wall 16 to the other Pendulum outer wall 17.
- the opposite two turbulators 20, 21 at the same height.
- a evenly fluctuating cooling fluid flow is no longer possible. Rather, they form between the turbulators 20, 21 Constrictions 23. This makes it available for the cooling fluid standing cross section is constantly changing. This cross-sectional change leads to pressure losses and therefore to one locally reduced cooling effectiveness and overheating.
- the invention provides for the turbulators 20, 21 with the same direction of inclination, but different angles of inclination to be arranged opposite to the flow direction 22.
- This is shown in more detail in Figures 3 and 4, each Show views in the direction of the partitions 18, 19.
- the Turbulators 20, 21 have the same on both outer walls 16, 17 Inclination direction, namely from bottom left to right at the top.
- the outer wall 17 is not shown in FIGS. 3 and 4.
- the partition wall 18 of FIG undistorted in width. Because of the line of sight the partition 19 distorted accordingly and therefore shown wider.
- the turbulators 20 extend from the partition 18 to the partition 19 along the first wall 16. Sie are therefore in the view according to Figure 3 in the right area partially covered by the partition 19.
- the turbulators 21 extend along the outer wall 17 between the Partitions 18, 19. Due to the different lengths of the Outer walls 16, 17 and the angular position of the partition walls 18, 19 results in a different length for the turbulators 20, 21.
- the angle of inclination ⁇ is the Turbulators of the first outer wall 16 are chosen larger than that Tilt angle ⁇ of the turbulators 21 of the second outer wall 17.
- the actual length of the turbulators 20 is thereby decreases while the length of the turbulators 21 increases becomes. There is therefore an angle difference ⁇ between the turbulators 20, 21.
- FIG. 4 shows a view in the viewing direction of the partition 19. Accordingly, the partition 19 appears undistorted while the partition 18 appears wider due to the viewing direction.
- Figures 3 and 4 show the position of the turbulators 20, 21 from different angles. Because of these different viewing angles, different angles of inclination and angle differences result in FIGS. 3 and 4, which are correspondingly referred to as ⁇ 1 , ⁇ 2 , ⁇ 1 , ⁇ 2 and ⁇ 1 , ⁇ 2 .
- the type and size of the distortion depend on the individual case.
- FIGS. 9 and 10 The angular profile of the turbulators 20, 21 in FIGS. 9 and 10 opposite the flow direction 22 is selected Projection direction.
- FIG. 10 also shows a schematic projection of the channel 13 in the plane along the section line I-I in Figure 2. In this projection results in the arrangement according to the invention of the turbulators 20, 21 that shown in FIG smooth course.
- the invention enables a uniform cross section of the channel 11 over the entire length of the turbulators 20, 21.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims (8)
- Heißgasbeaufschlagbares Bauteil (10), insbesondere Turbinenschaufel, mit mindestens einem Kanal (13), der mit einem Kühlfluid beaufschlagbar ist und von zwei ersten, einander gegenüberliegenden Wänden (16, 17) begrenzt ist, die zur Verbesserung des Wärmeübergangs zwischen dem Bauteil (10) und dem Kühlfluid mit einem oder mehreren Turbulatoren (20, 21) versehen sind, wobei die Turbulatoren (20) der ersten Wand (16) und die Turbulatoren (21) der zweiten Wand (17) dieselbe Neigungsrichtung aufweisen und gegenüber einer Strömungsrichtung (22) des Kühlfluids um einen Neigungswinkel (α; β) geneigt sind, dadurch gekennzeichnet, daß der Neigungswinkel (α) der Turbulatoren (20) der ersten Wand (16) von dem Neigungswinkel (β) der Turbulatoren (21) der zweiten Wand (17) verschieden ist.
- Bauteil nach Anspruch 1, dadurch gekennzeichnet, daß die Länge der ersten Wand (16) größer ist als die Länge der zweiten Wand (17).
- Bauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die beiden ersten Wände (16, 17) gebogen ausgebildet sind.
- Bauteil nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß der Neigungswinkel (α) der Turbulatoren (20) der ersten Wand (16) größer ist als der Neigungswinkel (β) der Turbulatoren (21) der zweiten Wand (17).
- Bauteil nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß zwei weitere Wände (18, 19) zur Begrenzung des Kanals (13) vorgesehen sind, die die beiden ersten Wände (16, 17) miteinander verbinden.
- Bauteil nach Anspruch 5, dadurch gekennzeichnet, daß die beiden weiteren Wände (18, 19) winklig zueinander angeordnet sind.
- Bauteil nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Turbulatoren (20, 21) gerade ausgebildet sind.
- Bauteil nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Turbulatoren (20, 21) gebogen ausgebildet sind.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00942078A EP1192333B1 (de) | 1999-06-28 | 2000-06-15 | Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99112370 | 1999-06-28 | ||
| EP99112370 | 1999-06-28 | ||
| PCT/EP2000/005525 WO2001000965A1 (de) | 1999-06-28 | 2000-06-15 | Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel |
| EP00942078A EP1192333B1 (de) | 1999-06-28 | 2000-06-15 | Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1192333A1 EP1192333A1 (de) | 2002-04-03 |
| EP1192333B1 true EP1192333B1 (de) | 2003-06-04 |
Family
ID=8238439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00942078A Expired - Lifetime EP1192333B1 (de) | 1999-06-28 | 2000-06-15 | Heissgasbeaufschlagbares bauteil, insbesondere turbinenschaufel |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6641362B1 (de) |
| EP (1) | EP1192333B1 (de) |
| JP (1) | JP4489336B2 (de) |
| DE (1) | DE50002464D1 (de) |
| WO (1) | WO2001000965A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015073092A3 (en) * | 2013-09-05 | 2015-08-06 | United Technologies Corporation | Gas turbine engine airfoil turbulator for airfoil creep resistance |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7513745B2 (en) * | 2006-03-24 | 2009-04-07 | United Technologies Corporation | Advanced turbulator arrangements for microcircuits |
| US7641445B1 (en) | 2006-12-01 | 2010-01-05 | Florida Turbine Technologies, Inc. | Large tapered rotor blade with near wall cooling |
| US7866947B2 (en) * | 2007-01-03 | 2011-01-11 | United Technologies Corporation | Turbine blade trip strip orientation |
| US7955053B1 (en) | 2007-09-21 | 2011-06-07 | Florida Turbine Technologies, Inc. | Turbine blade with serpentine cooling circuit |
| US8376706B2 (en) * | 2007-09-28 | 2013-02-19 | General Electric Company | Turbine airfoil concave cooling passage using dual-swirl flow mechanism and method |
| US8042268B2 (en) * | 2008-03-21 | 2011-10-25 | Siemens Energy, Inc. | Method of producing a turbine component with multiple interconnected layers of cooling channels |
| US20090324841A1 (en) * | 2008-05-09 | 2009-12-31 | Siemens Power Generation, Inc. | Method of restoring near-wall cooled turbine components |
| EP2146055B2 (de) † | 2008-07-17 | 2022-01-19 | Ansaldo Energia S.P.A. | Dichtungselement für Gasturbinen, Gasturbine mit besagtem Dichtungselement und Verfahren zum Kühlen besagten Dichtungselements |
| EP2602439A1 (de) | 2011-11-21 | 2013-06-12 | Siemens Aktiengesellschaft | Kühlbares Heißgasbauteil für eine Gasturbine |
| EP2954168B1 (de) * | 2013-02-05 | 2019-07-03 | United Technologies Corporation | Gasturbinenmotorkomponente mit gekrümmtem turbulator |
| CN106481366B (zh) * | 2015-08-28 | 2019-03-26 | 中国航发商用航空发动机有限责任公司 | 冷却叶片和燃气涡轮 |
| US11085304B2 (en) * | 2018-06-07 | 2021-08-10 | Raytheon Technologies Corporation | Variably skewed trip strips in internally cooled components |
| JP7847031B2 (ja) * | 2022-05-06 | 2026-04-16 | 三菱重工業株式会社 | タービン翼及びガスタービン |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627480A (en) | 1983-11-07 | 1986-12-09 | General Electric Company | Angled turbulence promoter |
| US5695322A (en) * | 1991-12-17 | 1997-12-09 | General Electric Company | Turbine blade having restart turbulators |
| US5695321A (en) | 1991-12-17 | 1997-12-09 | General Electric Company | Turbine blade having variable configuration turbulators |
| US5700132A (en) * | 1991-12-17 | 1997-12-23 | General Electric Company | Turbine blade having opposing wall turbulators |
| US5681144A (en) * | 1991-12-17 | 1997-10-28 | General Electric Company | Turbine blade having offset turbulators |
| US5413458A (en) | 1994-03-29 | 1995-05-09 | United Technologies Corporation | Turbine vane with a platform cavity having a double feed for cooling fluid |
| US5431537A (en) | 1994-04-19 | 1995-07-11 | United Technologies Corporation | Cooled gas turbine blade |
| DE19634238A1 (de) * | 1996-08-23 | 1998-02-26 | Asea Brown Boveri | Kühlbare Schaufel |
| US5797726A (en) | 1997-01-03 | 1998-08-25 | General Electric Company | Turbulator configuration for cooling passages or rotor blade in a gas turbine engine |
| EP0892150B1 (de) * | 1997-07-14 | 2003-02-05 | ALSTOM (Switzerland) Ltd | Kühlsystem für den Hinterkantenbereich einer hohlen Gasturbinenschaufel |
-
2000
- 2000-06-15 JP JP2001506354A patent/JP4489336B2/ja not_active Expired - Fee Related
- 2000-06-15 WO PCT/EP2000/005525 patent/WO2001000965A1/de not_active Ceased
- 2000-06-15 DE DE50002464T patent/DE50002464D1/de not_active Expired - Lifetime
- 2000-06-15 US US10/030,236 patent/US6641362B1/en not_active Expired - Lifetime
- 2000-06-15 EP EP00942078A patent/EP1192333B1/de not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015073092A3 (en) * | 2013-09-05 | 2015-08-06 | United Technologies Corporation | Gas turbine engine airfoil turbulator for airfoil creep resistance |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001000965A1 (de) | 2001-01-04 |
| US6641362B1 (en) | 2003-11-04 |
| JP4489336B2 (ja) | 2010-06-23 |
| DE50002464D1 (de) | 2003-07-10 |
| EP1192333A1 (de) | 2002-04-03 |
| JP2003503620A (ja) | 2003-01-28 |
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