EP1192333A1 - Component that can be subjected to hot gas, especially a turbine blade - Google Patents
Component that can be subjected to hot gas, especially a turbine bladeInfo
- Publication number
- EP1192333A1 EP1192333A1 EP00942078A EP00942078A EP1192333A1 EP 1192333 A1 EP1192333 A1 EP 1192333A1 EP 00942078 A EP00942078 A EP 00942078A EP 00942078 A EP00942078 A EP 00942078A EP 1192333 A1 EP1192333 A1 EP 1192333A1
- 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.)
- 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
- 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 channel can be narrowed locally by the turbulators. This occurs in particular when the two opposite walls and thus the turbulators have different lengths. The turbulators of the two walls then face each other at the same height. The canal is narrowed locally at this point. As a rule, the wall is provided with several turbulators this narrowing occurs repeatedly. This does not result in a cooling fluid flow with a substantially constant cross-section which oscillates uniformly from one wall to the other wall. Rather, the cross-section available for the cooling fluid is constantly changed, so that pressure losses occur.
- the object of the present invention is therefore to provide a component which can be subjected to hot gas and in which there is an essentially uniform channel cross section over the entire length of the turbulators without local constrictions.
- the length of the first wall is advantageously greater than the length of the second wall. As a result, different cross-sections can be selected for the component which can be acted upon with gas.
- Figure 5 is a section along the line V-V in Figure 2; 6 shows a section along the line VI-VI in Figure 2;
- the two outer walls 16, 17 are curved and have a different length.
- the outer wall 16 forms the suction side of the gas turbine blade 10
- the outer wall 17 forms the pressure side.
- the two partition walls 18, 19, which delimit the central channel 13, connect the outer walls 16, 17 to one another. These partitions 18, 19 are arranged at an angle to one another and are essentially perpendicular to the outer walls 16, 17. This achieves an optimization in the routing of the cooling fluid. Due to the angular position of the partition walls 18, 19 perpendicular to the outer walls 16, 17, loads on the gas turbine blade 10 that occur during operation can be better absorbed.
- the turbulators 20 are also longer than the turbulators 21.
- the turbulators 20 have the same angle of inclination with respect to the flow direction 22 of the Cooling fluids on like the turbulators 21 m in a projection parallel to one of the two walls 18, 19.
- the turbulators 20, 21 can be opposed in sections at the same height.
- FIG. 7 and FIG. 8 show a section along the line V-V and VI-VI in FIG. 2 in a gas turbine blade 10 according to the prior art.
- the turbulators 20, 21 of the two outer walls 16, 17 are arranged alternately to one another on the left-hand side of the channel 13 in FIG. 2, which is shown in cross section in FIG.
- the cooling fluid can flow uniformly from one outer wall 16 to the other in this area
- the turbulators 20, 21 Due to the different inclination angles ⁇ , ⁇ , but the same direction of inclination of the turbulators 20, 21, the turbulators alternate almost completely. As shown in FIGS. 3 and 4, the turbulators 20, 21 do not lie opposite one another at any point. The cooling fluid can therefore swing freely from one outer wall 16 to the other outer wall 17. This applies both near the partition 18 and near the partition 19.
- FIG. 10 For comparison, the mutual position of the turbulators 20, 21 in a gas turbine blade 10 according to the prior art is shown in FIG. 10 if the partition walls 18, 19 are not are parallel and the removal of the partitions 18 is carried out. It clearly shows that the turbulators 20, 21 are located opposite one another near the partition 19. The constriction 23 shown in FIG. 8 is thereby formed.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00942078A EP1192333B1 (en) | 1999-06-28 | 2000-06-15 | Component that can be subjected to hot gas, especially a turbine blade |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99112370 | 1999-06-28 | ||
EP99112370 | 1999-06-28 | ||
EP00942078A EP1192333B1 (en) | 1999-06-28 | 2000-06-15 | Component that can be subjected to hot gas, especially a turbine blade |
PCT/EP2000/005525 WO2001000965A1 (en) | 1999-06-28 | 2000-06-15 | Component that can be subjected to hot gas, especially a turbine blade |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1192333A1 true EP1192333A1 (en) | 2002-04-03 |
EP1192333B1 EP1192333B1 (en) | 2003-06-04 |
Family
ID=8238439
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00942078A Expired - Lifetime EP1192333B1 (en) | 1999-06-28 | 2000-06-15 | Component that can be subjected to hot gas, especially a turbine blade |
Country Status (5)
Country | Link |
---|---|
US (1) | US6641362B1 (en) |
EP (1) | EP1192333B1 (en) |
JP (1) | JP4489336B2 (en) |
DE (1) | DE50002464D1 (en) |
WO (1) | WO2001000965A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015073092A2 (en) | 2013-09-05 | 2015-05-21 | 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 (en) † | 2008-07-17 | 2022-01-19 | Ansaldo Energia S.P.A. | Sealing element for a gas turbine, a gas turbine including said sealing element and method for cooling said sealing element |
EP2602439A1 (en) | 2011-11-21 | 2013-06-12 | Siemens Aktiengesellschaft | Coolable hot gas component for a gas turbine |
WO2014175937A2 (en) * | 2013-02-05 | 2014-10-30 | United Technologies Corporation | Gas turbine engine component having curved turbulator |
CN106481366B (en) * | 2015-08-28 | 2019-03-26 | 中国航发商用航空发动机有限责任公司 | Cooling blade and gas turbine |
US11085304B2 (en) * | 2018-06-07 | 2021-08-10 | Raytheon Technologies Corporation | Variably skewed trip strips in internally cooled components |
JP2023165485A (en) * | 2022-05-06 | 2023-11-16 | 三菱重工業株式会社 | Turbine blade and gas turbine |
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 (en) * | 1996-08-23 | 1998-02-26 | Asea Brown Boveri | Coolable shovel |
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 (en) * | 1997-07-14 | 2003-02-05 | ALSTOM (Switzerland) Ltd | System for cooling the trailing edge of a hollow gasturbine blade |
-
2000
- 2000-06-15 EP EP00942078A patent/EP1192333B1/en not_active Expired - Lifetime
- 2000-06-15 DE DE50002464T patent/DE50002464D1/en not_active Expired - Lifetime
- 2000-06-15 US US10/030,236 patent/US6641362B1/en not_active Expired - Lifetime
- 2000-06-15 WO PCT/EP2000/005525 patent/WO2001000965A1/en active IP Right Grant
- 2000-06-15 JP JP2001506354A patent/JP4489336B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0100965A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015073092A2 (en) | 2013-09-05 | 2015-05-21 | United Technologies Corporation | Gas turbine engine airfoil turbulator for airfoil creep resistance |
Also Published As
Publication number | Publication date |
---|---|
JP4489336B2 (en) | 2010-06-23 |
US6641362B1 (en) | 2003-11-04 |
JP2003503620A (en) | 2003-01-28 |
WO2001000965A1 (en) | 2001-01-04 |
DE50002464D1 (en) | 2003-07-10 |
EP1192333B1 (en) | 2003-06-04 |
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