EP3289182A1 - Turbinenschaufel - Google Patents
TurbinenschaufelInfo
- Publication number
- EP3289182A1 EP3289182A1 EP16733363.2A EP16733363A EP3289182A1 EP 3289182 A1 EP3289182 A1 EP 3289182A1 EP 16733363 A EP16733363 A EP 16733363A EP 3289182 A1 EP3289182 A1 EP 3289182A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- blade
- wall thickness
- transition
- airfoil
- 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
- 230000007704 transition Effects 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 description 4
- 230000035508 accumulation Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 235000010678 Paulownia tomentosa Nutrition 0.000 description 1
- 240000002834 Paulownia tomentosa Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000930 thermomechanical effect Effects 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
- F01D5/12—Blades
- F01D5/14—Form or construction
- F01D5/147—Construction, i.e. structural features, e.g. of weight-saving hollow blades
-
- 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
-
- 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
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
- F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
- F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
-
- 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
- F05D2220/00—Application
- F05D2220/30—Application in turbines
- F05D2220/32—Application in turbines in gas turbines
-
- 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
- F05D2230/20—Manufacture essentially without removing material
- F05D2230/21—Manufacture essentially without removing material by casting
-
- 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
- F05D2240/12—Fluid guiding means, e.g. vanes
-
- 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
- F05D2240/20—Rotors
- F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05D2240/301—Cross-sectional characteristics
-
- 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
- F05D2240/80—Platforms for stationary or moving blades
Definitions
- Turbine blade the invention relates to a turbine blade according to the Gat ⁇ tung term of claim 1.
- Hollow turbine blades in particular gas turbine blades, have in the region of a transition from the blade to
- a turbine blade with an extended life is also known from EP 1 355 041 AI, wherein the contour of the transition from the blade to the platform in the blade interior is adapted to obtain in the transition region a blade wall thickness, which is approximately the wall thickness of the rest ⁇ corresponding blade.
- the contour is ent ⁇ long the entire, closed circulation, ie along the platform adapted.
- the reduced wall thickness for reasons of strength, can adversely affect the life of the turbine blade, which is undesirable.
- the invention is characterized in that it comprises a defining a cavity inside surface in the region of the ⁇ gear, whose contour is adapted in a first section of the inner surface in such a way that in the region of the transition has a substantially uniform blade wall thickness available for a corresponding to the preamble turbine blade is, wherein in the transition of the contour of the inner surface at a second inner surface portion of the airfoil, which is opposite the leading edge, such that there the blade wall thickness is increased, compared with the show ⁇ felwanddicke the transition of the first portion of the inner ⁇ surface.
- the contour profile is at an inner surface of the blade opposite the leading edge such that there the blade wall thickness is increased compared to the show ⁇ felwanddicke the transition, away from the local inner surface ⁇ section.
- the second inner surface portion extends with increased blade wall thickness starting at the front edge of the airfoil along the suction sidewall and / or the pressure sidewall along the profile centerline to a position equal to or less than 9% of the length of the profile centerline.
- the strength can, in particular in the pre ⁇ derkanten Scheme of the turbine blade, locally enlarged ⁇ the, resulting in an increased service life of the respective areas.
- the platform has a platform wall thickness and the blade ⁇ blade off the transition a blade wall thickness, wherein in the region with substantially uniform blade wall thickness of the transition, the ratio of blade wall thickness to platform wall thickness between 0.5 and 1 lies.
- Such a turbine blade can be cooled particularly homogeneously, which reduces thermomechanical stresses in the material of the turbine blade.
- FIG. 1 shows a plan view of the foot region of a turbine blade designed as a guide face
- FIG. 2 shows a longitudinal section through the turbine blade according to FIG. 1 along the section line II-II.
- the 1 shows in perspective view a turbine blade 10.
- the perspective is chosen so that the top ⁇ view of a mounting portion 12 of the vane as configured turbine blade 10 is shown.
- FIG 2 the longitudinal section through the turbine blade 10 according to the section line II-II of FIG 1 is shown.
- the turbine blade 10 has, along a radial axis 14, successively the fastening region 12, an adjacent blade plate 16 and an airfoil 18.
- a blade root 20 is formed, which serves for fastening ⁇ tion of the turbine blade 10 to a turbine vane support, not shown.
- the representation of the invention takes place by way of example with reference to egg ⁇ ner designed as a guide blade with two platforms turbine blade. Nevertheless, other embodiments are possible, in particular, the turbine blade can also be configured as a blade of a turbine. At least the main body of the turbine blade is produced by a casting method and comprises at least the blade 18, as ⁇ at least one platform 16. As is apparent from the figures, the invention ⁇ turbine blade 10 and in particular its blade 18 is designed to be hollow inside, so that it comprises a cavity 25, which may be configured in a known manner as a cooling channel with or without impingement cooling.
- the airfoil 18 extends from a front edge 28 to a trailing edge 30.
- the airfoil 18 comprises only schematically indicated in Figure 1 suction side show ⁇ felwand 32 and a pressure-side vane wall 34.
- the vane walls 32, 34 a wall thickness D. which is essentially consistent.
- a transition 36 the surface on the outer top of the turbine blade is rounded 10 and thus fillet- ⁇ like.
- Inside 18 has the blade to a temperature the outer surfaces FLAE ⁇ opposite inner surface. This is such in the area of the suction-side blade wall 32 so as to partially ⁇ as the outer contour of the transition, ie, along the radial axis 14 of a blade tip to the blade root, is Designed to fit, so that there uniform the transition 36 in the Wesent ⁇ union Vane wall thickness Dl is present.
- the inner surface in the region of the transition 36 comprises a second mecanicab ⁇ section 40 opposite the front edge 28, the contour of which is such that there the blade wall thickness (D 2 ) is increased compared to the blade wall thickness Di of the transition away from the second inner ⁇ surface portion 40th in other words, the second interior surface portion 40 is only located in the immediate Conversely ⁇ bung of the front edge and forms, with inner surface of the remainder of the airfoil along the radial direction 14 and in longitudinal section viewed a straight line, whereas the rest of the inner surface of the suction and / or Pressure side in the transition, ie, a first inner surface portion 41 under Beibe ⁇ attitude of an approximately uniform blade wall thickness Di is curved. Consequently, starting from the front edge 28 along the transition 36, the second inner surface section 40 with the increased wall thickness D2 is followed by the first inner surface section 41 having a wall thickness Di which corresponds to the wall thickness D of the airfoil.
- the invention relates to a cast turbine blade or vane 10 having a platform 16 and a thereto ⁇ arranged hollow airfoil 18, wherein the airfoil 18 includes a pressure-side blade wall 34 and a suction-side show ⁇ felwand 32, a centrally reasonable longitudinally thereof extend arcuate tread center line 42 from a common leading edge 28 to a common trailing edge 30 and having an outer contour transition 36 between the blade and platform 36, wherein the blade walls 32, 34 each have a locally to be detected blade wall thickness D, wherein the turbine blade inside a contour profile which is partially adapted to the outer contour of the transition 36 in such a way that in the region of the transition 36, a substantially uniform blade wall thickness is present.
- the contour at one of the leading edge 28 opposite second inner surface portion 40 of the airfoil is such that there the blade wall thickness is increased compared to the blade wall thickness of the transition away from the leading edge ,
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15175301.9A EP3112589A1 (de) | 2015-07-03 | 2015-07-03 | Turbinenschaufel |
PCT/EP2016/064274 WO2017005484A1 (de) | 2015-07-03 | 2016-06-21 | Turbinenschaufel |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3289182A1 true EP3289182A1 (de) | 2018-03-07 |
EP3289182B1 EP3289182B1 (de) | 2020-03-25 |
Family
ID=53514053
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15175301.9A Withdrawn EP3112589A1 (de) | 2015-07-03 | 2015-07-03 | Turbinenschaufel |
EP16733363.2A Active EP3289182B1 (de) | 2015-07-03 | 2016-06-21 | Turbinenschaufel |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15175301.9A Withdrawn EP3112589A1 (de) | 2015-07-03 | 2015-07-03 | Turbinenschaufel |
Country Status (5)
Country | Link |
---|---|
US (1) | US10301944B2 (de) |
EP (2) | EP3112589A1 (de) |
JP (1) | JP6469897B2 (de) |
CN (1) | CN107735548B (de) |
WO (1) | WO2017005484A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10655485B2 (en) * | 2017-08-03 | 2020-05-19 | General Electric Company | Stress-relieving pocket in turbine nozzle with airfoil rib |
US10422236B2 (en) * | 2017-08-03 | 2019-09-24 | General Electric Company | Turbine nozzle with stress-relieving pocket |
DE102018209610A1 (de) | 2018-06-14 | 2019-12-19 | MTU Aero Engines AG | Schaufelblatt für eine Strömungsmaschine |
JP7419002B2 (ja) * | 2019-09-12 | 2024-01-22 | 三菱重工業株式会社 | ストラットカバー、排気車室およびガスタービン |
US11578607B2 (en) * | 2020-12-15 | 2023-02-14 | Pratt & Whitney Canada Corp. | Airfoil having a spline fillet |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1049872B (de) | 1953-06-04 | 1954-02-05 | ||
JP3411775B2 (ja) | 1997-03-10 | 2003-06-03 | 三菱重工業株式会社 | ガスタービン動翼 |
JP2001271603A (ja) * | 2000-03-24 | 2001-10-05 | Mitsubishi Heavy Ind Ltd | ガスタービン動翼 |
CA2334071C (en) | 2000-02-23 | 2005-05-24 | Mitsubishi Heavy Industries, Ltd. | Gas turbine moving blade |
DE10217390A1 (de) * | 2002-04-18 | 2003-10-30 | Siemens Ag | Turbinenschaufel |
GB2395987B (en) | 2002-12-02 | 2005-12-21 | Alstom | Turbine blade with cooling bores |
US7371046B2 (en) * | 2005-06-06 | 2008-05-13 | General Electric Company | Turbine airfoil with variable and compound fillet |
CH698109B1 (de) | 2005-07-01 | 2009-05-29 | Alstom Technology Ltd | Turbomaschinenschaufel. |
CN101627182B (zh) * | 2005-07-27 | 2013-02-27 | 西门子公司 | 用于燃气轮机的冷却的涡轮叶片和这种涡轮叶片的用途 |
JP4738176B2 (ja) * | 2006-01-05 | 2011-08-03 | 三菱重工業株式会社 | 冷却翼 |
EP1895102B1 (de) * | 2006-08-23 | 2009-04-22 | Siemens Aktiengesellschaft | Beschichtete Turbinenschaufel |
CN102016234B (zh) | 2008-03-28 | 2015-05-20 | 阿尔斯通技术有限公司 | 燃气轮机的导向叶片 |
JP5479032B2 (ja) | 2009-11-05 | 2014-04-23 | 三菱重工業株式会社 | タービンホイール |
EP2476863A1 (de) * | 2011-01-14 | 2012-07-18 | Siemens Aktiengesellschaft | Turbinenschaufel für eine Gasturbine |
JP5655210B2 (ja) * | 2011-04-22 | 2015-01-21 | 三菱日立パワーシステムズ株式会社 | 翼部材及び回転機械 |
CH705187A1 (de) * | 2011-06-17 | 2012-12-31 | Alstom Technology Ltd | Gegossene Turbinenschaufel. |
-
2015
- 2015-07-03 EP EP15175301.9A patent/EP3112589A1/de not_active Withdrawn
-
2016
- 2016-06-21 CN CN201680039384.5A patent/CN107735548B/zh active Active
- 2016-06-21 WO PCT/EP2016/064274 patent/WO2017005484A1/de active Application Filing
- 2016-06-21 EP EP16733363.2A patent/EP3289182B1/de active Active
- 2016-06-21 JP JP2017567740A patent/JP6469897B2/ja active Active
- 2016-06-21 US US15/739,299 patent/US10301944B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20180187551A1 (en) | 2018-07-05 |
JP6469897B2 (ja) | 2019-02-13 |
CN107735548A (zh) | 2018-02-23 |
US10301944B2 (en) | 2019-05-28 |
EP3112589A1 (de) | 2017-01-04 |
JP2018524511A (ja) | 2018-08-30 |
WO2017005484A1 (de) | 2017-01-12 |
CN107735548B (zh) | 2019-07-12 |
EP3289182B1 (de) | 2020-03-25 |
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