EP1219779A2 - Komponente einer Strömungsmaschine mit Inspektionsöffnung - Google Patents
Komponente einer Strömungsmaschine mit Inspektionsöffnung Download PDFInfo
- Publication number
- EP1219779A2 EP1219779A2 EP01128803A EP01128803A EP1219779A2 EP 1219779 A2 EP1219779 A2 EP 1219779A2 EP 01128803 A EP01128803 A EP 01128803A EP 01128803 A EP01128803 A EP 01128803A EP 1219779 A2 EP1219779 A2 EP 1219779A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- inspection
- component
- opening
- cooling
- dust discharge
- 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
- 238000007689 inspection Methods 0.000 title claims abstract description 41
- 239000000428 dust Substances 0.000 claims abstract description 34
- 238000001816 cooling Methods 0.000 claims abstract description 32
- 239000002245 particle Substances 0.000 claims abstract description 10
- 239000002826 coolant Substances 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 206010010774 Constipation Diseases 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/002—Cleaning of turbomachines
-
- 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
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/10—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for responsive to unwanted deposits on blades, in working-fluid conduits or the like
-
- 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
- F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
-
- 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
- F05D2260/201—Heat transfer, e.g. cooling by impingement of a fluid
-
- 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
- F05D2260/60—Fluid transfer
- F05D2260/607—Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
Definitions
- the present invention relates to a component a turbomachine, in particular a gas turbine, the cooling channels for a cooling medium and at least one Inspection opening through which a Inspection of the interior of the component is enabled and a method for inspection and / or cleaning the inside of such a component.
- Modern high-temperature gas turbines require Achieving high efficiency is a sophisticated Cooling system, especially for cooling the highly loaded Turbine blades.
- the turbine blades indicate this one or more chambers designed as a cavity and / or channels on which the blades of the Cooling medium can be supplied to the side of the rotor.
- In the inflow area of the turbine blades at their The leading edge is usually numerous Cooling air holes are provided through which the cooling medium can step out from the inside of the blade.
- Cooling air film covering the turbine blade in front of one protects against excessive warming. Are in the same way too corresponding cooling air holes on the rear edge of the Turbine blade available.
- the object of the present invention is therein, a hollow component of a fluid machine to train in such a way that both the inspection and also a reduction in the risk of constipation Cooling air holes can be realized in a simple manner can.
- Claim 6 also gives a method for Inspection and / or cleaning of the interior in accordance with Claim 1 configured component.
- the component according to the invention with cooling channels for a cooling medium and at least one inspection opening, through which an inspection of the interior the component is made possible by this from that the inspection opening at the Component is arranged and dimensioned that it at the same time a dust discharge opening for im Dust or dirt particles contained in the cooling medium forms.
- the inventors of the present invention now have recognized that inspection access openings through clever arrangement the function of dust discharge openings can meet or that dust discharge openings by appropriate dimensioning, in particular Enlargement serve as inspection access openings can.
- the dust discharge openings are from the size and the location so that both the Dirt carried out cheaply as well as an opening sufficient diameter is formed to a To be able to insert the borescope through this opening.
- at Blades sit this inspection and dust discharge opening preferably near the tip of the blade.
- Around the blades even when installed to be able to inspect the machine Inspection and dust discharge openings approximately arranged parallel to the machine axis if that Inspection tool in the gas turbine hot gas path should be performed. Should the inspection tool are guided radially into the machine Position at the tip of the blade more favorable, in which the Inspection and dust discharge opening radially to the Machine axis runs.
- Combination of dust discharge and inspection ability with one and the same opening Avoid unnecessary openings that are undesirable Loss of cooling medium and therefore a loss Can cause efficiency.
- Figure 1 shows a cross section schematically Turbine blade with blade root 1, platform 2 and Blade 3.
- the hollow channel 4 to recognize through which the turbine blade cooling air from Blade root 1 is fed here.
- the tip of the blade is in the front area, d. H. in the inflow area of the Turbine blade has a dust discharge opening 5 shown by the entrained with the cooling medium Dirt particles due to their inertia from the Hollow channel 4 are discharged. Due to the high Flow rate of the cooling medium at the Dust discharge opening 5 existing deflection of the Cooling channel 4 take the particles due to their large size Measure the way through the dust discharge opening 5 and do not get through the redirection in the others Course of the cooling channel, in which it is therefore relatively dust-free Cooling air flows.
- the Dust discharge opening 5 is according to the invention in diameter so big that the introduction a boroscope through this opening 5 into the interior of the Turbine blade is made possible. That way the inside of this component is also built in Inspect condition at any time.
- Figure 2 finally shows another example, where the dust discharge opening 5 is not in radial, but in the axial direction.
- the blade root 1 is again the platform 2 and the airfoil 3 in Recognize cross section.
- the cooling channel 4 runs in same way as in Figure 1.
- the dust hole 5, which in this example runs parallel to the machine axis, enables inspection with one in the hot gas path guided inspection tool.
- the mechanism of the Dust removal is the same as that of Figure 1.
- the Dust hole 5 or the channel 7 leading to it here again in terms of diameter, that they are introducing an inspection tool, especially a boroscope inside enable the turbine blade.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
Description
- Fig. 1
- schematisch einen Schnitt durch eine Turbinenschaufel, die gemäß der vorliegenden Erfindung ausgestaltet ist; und
- Fig. 2
- ein weiteres Beispiel für die Ausgestaltung einer Turbinenschaufel im Querschnitt, die gemäß der vorliegenden Erfindung ausgestaltet ist.
- 1
- Schaufelfuß
- 2
- Plattform
- 3
- Schaufelblatt
- 4
- Kühlkanal
- 5
- Staubaustragsöffnung bzw. Inspektionsöffnung
- 6
- Stifte
- 7
- Staubaustragskanal
Claims (7)
- Komponente einer Strömungsmaschine, insbesondere einer Gasturbine, die Kühlkanäle (4) für ein Kühlmedium sowie zumindest eine Inspektionsöffnung (5) aufweist, durch die hindurch eine Inspektion des Inneren der Komponente ermöglicht wird,
dadurch gekennzeichnet, dass die Inspektionsöffnung (5) derart angeordnet und dimensioniert ist, dass sie eine Staubaustragsöffnung für im Kühlmedium enthaltene Staub- oder Schmutzpartikel bildet. - Komponente nach Anspruch 1,
dadurch gekennzeichnet, dass die Inspektionsöffnung (5) derart dimensioniert ist, dass sie die Einführung eines Boroskops ermöglicht. - Komponente nach Anspruch 1 oder 2,
die als Laufschaufel für eine Turbine ausgebildet ist, wobei die Inspektionsöffnung (5) in der Nähe der Schaufelspitze angeordnet ist. - Komponente nach Anspruch 3,
dadurch gekennzeichnet, dass die Inspektionsöffnung (5) annähernd parallel zur Maschinenachse verläuft. - Komponente nach Anspruch 3,
dadurch gekennzeichnet, dass die Inspektionsöffnung (5) an der Schaufelspitze angeordnet ist und in radialer Richtung verläuft. - Verfahren zur Inspektion und/oder Reinigung des Inneren einer gemäß Patentanspruch 1 ausgestalteten Komponente einer Strömungsmaschine, insbesondere einer Gasturbine,
dadurch gekennzeichnet, dass ein Inspektions- und/oder Reinigungswerkzeug durch die Inspektions- bzw. Staubaustragsöffnung eingeführt und eine Inspektion und/oder Reinigung des Inneren der Komponente mit dem Inspektions- und/oder Reinigungswerkzeug durchgeführt wird. - Verfahren nach Anspruch 6,
dadurch gekennzeichnet, dass ein Boroskop als Inspektionswerkzeug eingesetzt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10064269A DE10064269A1 (de) | 2000-12-22 | 2000-12-22 | Komponente einer Strömungsmaschine mit Inspektionsöffnung |
DE10064269 | 2000-12-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1219779A2 true EP1219779A2 (de) | 2002-07-03 |
EP1219779A3 EP1219779A3 (de) | 2003-12-10 |
EP1219779B1 EP1219779B1 (de) | 2006-11-02 |
Family
ID=7668442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01128803A Revoked EP1219779B1 (de) | 2000-12-22 | 2001-12-04 | Komponente einer Strömungsmaschine mit Inspektionsöffnung, und Verfahren zur Inspection und Reinigung einer solchen Komponente |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020090298A1 (de) |
EP (1) | EP1219779B1 (de) |
DE (2) | DE10064269A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1488077B1 (de) * | 2002-03-25 | 2006-07-12 | ALSTOM Technology Ltd | Gekühlte turbinenschaufel |
DE10305898A1 (de) | 2003-02-13 | 2004-08-26 | Alstom Technology Ltd | Verfahren zum Einbauen von spiralförmigen Gewindeeinsätzen sowie Einbauwerkzeug zur Durchführung des Verfahrens |
FR2858352B1 (fr) * | 2003-08-01 | 2006-01-20 | Snecma Moteurs | Circuit de refroidissement pour aube de turbine |
US7185662B2 (en) * | 2003-11-14 | 2007-03-06 | United Technologies Corporation | Methods of preparing, cleaning and repairing article and article repaired |
EP1704933B1 (de) * | 2005-03-21 | 2012-12-19 | United Technologies Corporation | Verfahren zum Präparieren, Reinigen und Reparieren eines Artikels |
US7377747B2 (en) * | 2005-06-06 | 2008-05-27 | General Electric Company | Turbine airfoil with integrated impingement and serpentine cooling circuit |
US8245952B2 (en) * | 2009-02-20 | 2012-08-21 | Pratt & Whitney Canada Corp. | Compressor wash nozzle integrated in an inlet case strut |
EP2236746A1 (de) | 2009-03-23 | 2010-10-06 | Alstom Technology Ltd | Gasturbine |
DE102009039224B4 (de) | 2009-08-28 | 2022-10-06 | MTU Aero Engines AG | Verfahren und Vorrichtung zur Erkennung von verstopften Bohrungen in einem Bauteil |
US20140063228A1 (en) * | 2012-09-06 | 2014-03-06 | General Electric Company | Method and system for cleaning surfaces and non-destructive inspection thereof |
US9938836B2 (en) * | 2015-12-22 | 2018-04-10 | General Electric Company | Turbine airfoil with trailing edge cooling circuit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4820122A (en) | 1988-04-25 | 1989-04-11 | United Technologies Corporation | Dirt removal means for air cooled blades |
DE19801804A1 (de) | 1998-01-19 | 1999-07-22 | Siemens Ag | Turbinenschaufel sowie Verfahren zur Inspektion und/oder Reinigung einer Turbinenschaufel |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3533711A (en) * | 1966-02-26 | 1970-10-13 | Gen Electric | Cooled vane structure for high temperature turbines |
US3628885A (en) * | 1969-10-01 | 1971-12-21 | Gen Electric | Fluid-cooled airfoil |
US3936217A (en) * | 1975-01-31 | 1976-02-03 | Westinghouse Electric Corporation | Inspection port for turbines |
US4278400A (en) * | 1978-09-05 | 1981-07-14 | United Technologies Corporation | Coolable rotor blade |
GB2051964B (en) * | 1979-06-30 | 1983-01-12 | Rolls Royce | Turbine blade |
US4775296A (en) * | 1981-12-28 | 1988-10-04 | United Technologies Corporation | Coolable airfoil for a rotary machine |
US4668162A (en) * | 1985-09-16 | 1987-05-26 | Solar Turbines Incorporated | Changeable cooling control system for a turbine shroud and rotor |
JPS62228603A (ja) * | 1986-03-31 | 1987-10-07 | Toshiba Corp | ガスタ−ビンの翼 |
US4767268A (en) * | 1987-08-06 | 1988-08-30 | United Technologies Corporation | Triple pass cooled airfoil |
US4820123A (en) * | 1988-04-25 | 1989-04-11 | United Technologies Corporation | Dirt removal means for air cooled blades |
US4962640A (en) * | 1989-02-06 | 1990-10-16 | Westinghouse Electric Corp. | Apparatus and method for cooling a gas turbine vane |
GB2244047B (en) * | 1990-05-17 | 1994-02-16 | Rolls Royce Plc | Inspection aperture sealing |
US5052889A (en) * | 1990-05-17 | 1991-10-01 | Pratt & Whintey Canada | Offset ribs for heat transfer surface |
US5603606A (en) * | 1994-11-14 | 1997-02-18 | Solar Turbines Incorporated | Turbine cooling system |
US5797726A (en) * | 1997-01-03 | 1998-08-25 | General Electric Company | Turbulator configuration for cooling passages or rotor blade in a gas turbine engine |
US5931638A (en) * | 1997-08-07 | 1999-08-03 | United Technologies Corporation | Turbomachinery airfoil with optimized heat transfer |
US5902093A (en) * | 1997-08-22 | 1999-05-11 | General Electric Company | Crack arresting rotor blade |
US5975851A (en) * | 1997-12-17 | 1999-11-02 | United Technologies Corporation | Turbine blade with trailing edge root section cooling |
US6206638B1 (en) * | 1999-02-12 | 2001-03-27 | General Electric Company | Low cost airfoil cooling circuit with sidewall impingement cooling chambers |
DE19921644B4 (de) * | 1999-05-10 | 2012-01-05 | Alstom | Kühlbare Schaufel für eine Gasturbine |
US6468033B1 (en) * | 2000-10-03 | 2002-10-22 | General Electric Company | Methods and apparatus for maintaining alignment of borescope plungers |
US6431832B1 (en) * | 2000-10-12 | 2002-08-13 | Solar Turbines Incorporated | Gas turbine engine airfoils with improved cooling |
-
2000
- 2000-12-22 DE DE10064269A patent/DE10064269A1/de not_active Withdrawn
-
2001
- 2001-12-04 DE DE50111356T patent/DE50111356D1/de not_active Expired - Lifetime
- 2001-12-04 EP EP01128803A patent/EP1219779B1/de not_active Revoked
- 2001-12-05 US US10/002,141 patent/US20020090298A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4820122A (en) | 1988-04-25 | 1989-04-11 | United Technologies Corporation | Dirt removal means for air cooled blades |
DE19801804A1 (de) | 1998-01-19 | 1999-07-22 | Siemens Ag | Turbinenschaufel sowie Verfahren zur Inspektion und/oder Reinigung einer Turbinenschaufel |
Also Published As
Publication number | Publication date |
---|---|
US20020090298A1 (en) | 2002-07-11 |
DE10064269A1 (de) | 2002-07-04 |
DE50111356D1 (de) | 2006-12-14 |
EP1219779B1 (de) | 2006-11-02 |
EP1219779A3 (de) | 2003-12-10 |
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