EP1722070A3 - Method of manufacturing segmented stators for a steam turbine - Google Patents

Method of manufacturing segmented stators for a steam turbine Download PDF

Info

Publication number
EP1722070A3
EP1722070A3 EP06252184A EP06252184A EP1722070A3 EP 1722070 A3 EP1722070 A3 EP 1722070A3 EP 06252184 A EP06252184 A EP 06252184A EP 06252184 A EP06252184 A EP 06252184A EP 1722070 A3 EP1722070 A3 EP 1722070A3
Authority
EP
European Patent Office
Prior art keywords
steam turbine
segmented stators
manufacturing
manufacturing segmented
piece
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Withdrawn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
EP06252184A
Other languages
German (de)
French (fr)
Other versions
EP1722070A2 (en
Inventor
David Orus Fitts
Sterling R. Hathaway
Larry Duclos
Robert James Bracken
Ronald W. Korzun
William Edward Adis
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP1722070A2 publication Critical patent/EP1722070A2/en
Publication of EP1722070A3 publication Critical patent/EP1722070A3/en
Withdrawn legal-status Critical Current

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
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

A method of manufacturing reaction nozzles for a turbine comprising (a) providing a piece of flat plate stock (38) of predetermined size and thickness; and (b) machining the piece of flat plate stock to form a unitary, arcuate reaction nozzle segment (24) including at least two adjacent nozzle airfoils (26).
EP06252184A 2005-04-27 2006-04-22 Method of manufacturing segmented stators for a steam turbine Withdrawn EP1722070A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/115,371 US20060245923A1 (en) 2005-04-27 2005-04-27 Arcuate nozzle segment and related method of manufacture

Publications (2)

Publication Number Publication Date
EP1722070A2 EP1722070A2 (en) 2006-11-15
EP1722070A3 true EP1722070A3 (en) 2011-10-12

Family

ID=36994715

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06252184A Withdrawn EP1722070A3 (en) 2005-04-27 2006-04-22 Method of manufacturing segmented stators for a steam turbine

Country Status (4)

Country Link
US (1) US20060245923A1 (en)
EP (1) EP1722070A3 (en)
CN (1) CN1880731B (en)
RU (1) RU2006114341A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070053773A1 (en) * 2005-09-07 2007-03-08 General Electric Company Integrated nozzle wheel for reaction steam turbine stationary components and related method
US20070071605A1 (en) * 2005-09-23 2007-03-29 General Electric Company Integrated nozzle and bucket wheels for reaction steam turbine stationary components and related method
EP2735707B1 (en) * 2012-11-27 2017-04-05 Safran Aero Boosters SA Axial turbomachine guide nozzle with segmented inner shroud and corresponding compressor
PL3967846T3 (en) 2020-09-10 2024-07-01 General Electric Technology Gmbh Nozzle segment, steam turbine with diaphragm of multiple nozzle segments and method for assembly thereof

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425738B1 (en) * 2000-05-11 2002-07-30 General Electric Company Accordion nozzle
EP1764482A2 (en) * 2005-09-07 2007-03-21 General Electric Company Single piece nozzle wheel and manufacturing method
EP1785594A2 (en) * 2005-11-11 2007-05-16 General Electric Company Stacked reaction steam turbine stator assembly

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091383A (en) * 1957-02-14 1963-05-28 Stalker Corp Bladed rotor for fluid machines
US3056583A (en) * 1960-11-10 1962-10-02 Gen Electric Retaining means for turbine shrouds and nozzle diaphragms of turbine engines
US3302926A (en) * 1965-12-06 1967-02-07 Gen Electric Segmented nozzle diaphragm for high temperature turbine
SE463702B (en) * 1989-06-01 1991-01-14 Abb Stal Ab SET TO MAKE A SHARED CIRCULAR RING
US5174715A (en) * 1990-12-13 1992-12-29 General Electric Company Turbine nozzle
US5438755A (en) * 1993-11-17 1995-08-08 Giberson; Melbourne F. Method of making a monolithic shrouded impeller
US6183192B1 (en) * 1999-03-22 2001-02-06 General Electric Company Durable turbine nozzle
GB9922248D0 (en) * 1999-09-21 1999-11-17 Rolls Royce Plc Improvements in or relating to methods and apparatus for machining workpieces
JP4040922B2 (en) * 2001-07-19 2008-01-30 株式会社東芝 Assembly type nozzle diaphragm and its assembly method
CA2366325A1 (en) * 2001-12-27 2003-06-27 Todd Howley Method of forming turbine blade root
US6722848B1 (en) * 2002-10-31 2004-04-20 General Electric Company Turbine nozzle retention apparatus at the carrier horizontal joint face
FR2873940B1 (en) * 2004-08-03 2008-01-04 Snecma Moteurs Sa METHOD FOR MANUFACTURING CONSTITUENT PIECES OF A HOLLOW DRAW BY ROLLING
US20070071605A1 (en) * 2005-09-23 2007-03-29 General Electric Company Integrated nozzle and bucket wheels for reaction steam turbine stationary components and related method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6425738B1 (en) * 2000-05-11 2002-07-30 General Electric Company Accordion nozzle
EP1764482A2 (en) * 2005-09-07 2007-03-21 General Electric Company Single piece nozzle wheel and manufacturing method
EP1785594A2 (en) * 2005-11-11 2007-05-16 General Electric Company Stacked reaction steam turbine stator assembly

Also Published As

Publication number Publication date
US20060245923A1 (en) 2006-11-02
CN1880731B (en) 2010-05-12
EP1722070A2 (en) 2006-11-15
RU2006114341A (en) 2007-11-10
CN1880731A (en) 2006-12-20

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