EP0872628A3 - Stator vane for steam turbine - Google Patents

Stator vane for steam turbine Download PDF

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Publication number
EP0872628A3
EP0872628A3 EP98106798A EP98106798A EP0872628A3 EP 0872628 A3 EP0872628 A3 EP 0872628A3 EP 98106798 A EP98106798 A EP 98106798A EP 98106798 A EP98106798 A EP 98106798A EP 0872628 A3 EP0872628 A3 EP 0872628A3
Authority
EP
European Patent Office
Prior art keywords
head
foot
foot pieces
turbine housing
signs
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.)
Withdrawn
Application number
EP98106798A
Other languages
German (de)
French (fr)
Other versions
EP0872628A2 (en
Inventor
Carsten Binder
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0872628A2 publication Critical patent/EP0872628A2/en
Publication of EP0872628A3 publication Critical patent/EP0872628A3/en
Withdrawn legal-status Critical Current

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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
    • F01D5/147—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
    • F01D5/18—Hollow blades, i.e. blades with cooling or heating channels or cavities; Heating, heat-insulating or cooling means on 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
    • 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
    • F05D2230/00—Manufacture
    • F05D2230/60—Assembly methods

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Laser Beam Processing (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)

Abstract

Die Erfindung bezieht sich auf eine Leitschaufel für Dampfturbinen, die Kopf- und Fußstücke aufweist und die in Mehrfachanordnung mit ihren Kopf- und Fußstücken im Turbinengehäuse je einen inneren und je einen äußeren Ring bilden.The invention relates to a guide vane for steam turbines, the head and foot pieces has and in multiple arrangement with their head and foot pieces in the turbine housing form an inner and an outer ring.

Aufgabe der Erfindung ist es, Leitschaufeln anzugeben, die einmal verhältnismäßig leicht, also im Materialeinsatz kostengünstig sind, beim Vorliegen von Verzugserscheinungen nur tragbarer Nachbearbeitung bedürfen und zum anderen zumindest die eigentlichen Schaufeln solche Oberflächen und Abreißkanten haben, daß nicht nur vorzeitig Korrosionserscheinungen vermieden sind, sondern vor allem bei einer langen Funktionsfähigkeit ein hoher Wirkungsgrad gesichert erscheint.The object of the invention is to provide guide vanes that are relatively light, that is are inexpensive to use, only when there are signs of distortion portable reworking and secondly at least the actual blades such surfaces and tear-off edges have that not only premature signs of corrosion are avoided, but above all with a long functionality a high efficiency appears secure.

Gelöst wird diese Aufgabe dadurch, daß jede einzelne Leitschaufel (2, vgl. auch 3) hohl ausgebildet ist und zusammen mit je einem Kopf- und je einem Fußstück (4, 5) eine einheitliche Schweißkonstruktion aus Blech bildet und die Fußstücke (4) aller Leitschaufeln (2, vgl. auch 3) im ortsfeste Aufnahmen des Turbinengehäuses einhängbar sind.

Figure 00000001
This object is achieved in that each individual guide vane (2, cf. also 3) is hollow and, together with a head piece and a foot piece (4, 5), forms a uniform welded structure made of sheet metal and the foot pieces (4) of all Guide vanes (2, cf. also 3) can be hooked into the stationary receptacles of the turbine housing.
Figure 00000001
EP98106798A 1997-04-17 1998-04-15 Stator vane for steam turbine Withdrawn EP0872628A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19715966 1997-04-17
DE19715966A DE19715966A1 (en) 1997-04-17 1997-04-17 Guide vane for steam turbines

Publications (2)

Publication Number Publication Date
EP0872628A2 EP0872628A2 (en) 1998-10-21
EP0872628A3 true EP0872628A3 (en) 1999-12-08

Family

ID=7826729

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98106798A Withdrawn EP0872628A3 (en) 1997-04-17 1998-04-15 Stator vane for steam turbine

Country Status (3)

Country Link
US (1) US6135711A (en)
EP (1) EP0872628A3 (en)
DE (1) DE19715966A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITCO20130051A1 (en) * 2013-10-23 2015-04-24 Nuovo Pignone Srl METHOD FOR THE PRODUCTION OF A STAGE OF A STEAM TURBINE
JP6284447B2 (en) * 2014-06-27 2018-02-28 三菱日立パワーシステムズ株式会社 Stator blade unit and steam turbine
US11225875B1 (en) * 2021-01-27 2022-01-18 Raytheon Technologies Corporation Rail support beams

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056582A (en) * 1960-08-26 1962-10-02 Gen Electric Turbine stator construction
FR1340331A (en) * 1962-09-07 1963-10-18 Rateau Soc Improvements to devices for connecting the ends of mobile turbine blades
US3302924A (en) * 1965-03-12 1967-02-07 Gen Motors Corp Dual airfoil bladed rotor
DE1902031A1 (en) * 1969-01-16 1970-09-10 Siteg Siebtech Gmbh Continuous vibrating disc mill
US4195396A (en) * 1977-12-15 1980-04-01 Trw Inc. Method of forming an airfoil with inner and outer shroud sections
US4437810A (en) * 1981-04-24 1984-03-20 Rolls-Royce Limited Cooled vane for a gas turbine engine
US4639189A (en) * 1984-02-27 1987-01-27 Rockwell International Corporation Hollow, thermally-conditioned, turbine stator nozzle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US925218A (en) * 1908-12-08 1909-06-15 Schroeder Headlight Company Elastic-fluid turbine.
US2771622A (en) * 1952-05-09 1956-11-27 Westinghouse Electric Corp Diaphragm apparatus
US3365173A (en) * 1966-02-28 1968-01-23 Gen Electric Stator structure
DE2320064B2 (en) * 1973-04-19 1975-05-28 Jurij Fedorowitsch Kosjak Diffuser of a steam turbine stage with axial flow
US5022818A (en) * 1989-02-21 1991-06-11 Westinghouse Electric Corp. Compressor diaphragm assembly
JPH06248903A (en) * 1993-02-24 1994-09-06 Toshiba Corp Waterdrop removing device for steam turbine

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056582A (en) * 1960-08-26 1962-10-02 Gen Electric Turbine stator construction
FR1340331A (en) * 1962-09-07 1963-10-18 Rateau Soc Improvements to devices for connecting the ends of mobile turbine blades
US3302924A (en) * 1965-03-12 1967-02-07 Gen Motors Corp Dual airfoil bladed rotor
DE1902031A1 (en) * 1969-01-16 1970-09-10 Siteg Siebtech Gmbh Continuous vibrating disc mill
US4195396A (en) * 1977-12-15 1980-04-01 Trw Inc. Method of forming an airfoil with inner and outer shroud sections
US4437810A (en) * 1981-04-24 1984-03-20 Rolls-Royce Limited Cooled vane for a gas turbine engine
US4639189A (en) * 1984-02-27 1987-01-27 Rockwell International Corporation Hollow, thermally-conditioned, turbine stator nozzle

Also Published As

Publication number Publication date
EP0872628A2 (en) 1998-10-21
US6135711A (en) 2000-10-24
DE19715966A1 (en) 1998-10-29

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