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IT1252051B - Turbina a vapore con gruppi di palette in un sol pezzo dello stadio dicomando - Google Patents

Turbina a vapore con gruppi di palette in un sol pezzo dello stadio dicomando

Info

Publication number
IT1252051B
IT1252051B ITMI910809A ITMI910809A IT1252051B IT 1252051 B IT1252051 B IT 1252051B IT MI910809 A ITMI910809 A IT MI910809A IT MI910809 A ITMI910809 A IT MI910809A IT 1252051 B IT1252051 B IT 1252051B
Authority
IT
Italy
Prior art keywords
rotor
blade assembly
steam turbine
piece
palette
Prior art date
Application number
ITMI910809A
Other languages
English (en)
Inventor
Albert Joseph Partington
Martin Ennis Schlatter
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of ITMI910809A0 publication Critical patent/ITMI910809A0/it
Publication of ITMI910809A1 publication Critical patent/ITMI910809A1/it
Application granted granted Critical
Publication of IT1252051B publication Critical patent/IT1252051B/it

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
    • F01D5/30—Fixing blades to rotors; Blade roots ; Blade spacers
    • F01D5/3053—Fixing blades to rotors; Blade roots ; Blade spacers by means of pins

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

E' descritto un gruppo di palette in un sol pezzo dello stadio di comando per l'impiego in una turbina a vapore. Il gruppo di palette comprende una molteplicità di palette fissate ad una piattaforma unitaria e una molteplicità di parti di radice pendenti dalla piattaforma in una direzione opposta alle palette. Ognuna delle parti di radice si adatta entro una rispettiva scanalatura anulare nel rotore. Il gruppo di palette comprende almeno tre aperture distanziate formate nella parte di radice e disposte in modo da allinearsi con aperture corrispondenti nelle flange del rotore quando il gruppo di palette è montato sul rotore. Ogni apertura è formata in modo da trovarsi su una circonferenza di rotore comune parallela ad un asse del rotore per ricevere una spina attraverso le aperture allineate per fissare il gruppo di palette al rotore.
ITMI910809A 1990-04-09 1991-03-26 Turbina a vapore con gruppi di palette in un sol pezzo dello stadio dicomando IT1252051B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/506,147 US5100296A (en) 1990-04-09 1990-04-09 Steam turbine integral control stage blade group

Publications (3)

Publication Number Publication Date
ITMI910809A0 ITMI910809A0 (it) 1991-03-26
ITMI910809A1 ITMI910809A1 (it) 1992-09-26
IT1252051B true IT1252051B (it) 1995-05-29

Family

ID=24013389

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI910809A IT1252051B (it) 1990-04-09 1991-03-26 Turbina a vapore con gruppi di palette in un sol pezzo dello stadio dicomando

Country Status (6)

Country Link
US (1) US5100296A (it)
JP (1) JPH0772484B2 (it)
KR (1) KR0153004B1 (it)
CN (1) CN1055575A (it)
CA (1) CA2039990C (it)
IT (1) IT1252051B (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4460316A (en) * 1982-12-29 1984-07-17 Westinghouse Electric Corp. Blade group with pinned root
US5405245A (en) * 1993-11-29 1995-04-11 Solar Turbines Incorporated Ceramic blade attachment system
US20090092494A1 (en) * 2007-10-04 2009-04-09 General Electric Company Disk rotor and method of manufacture
DE102009013348A1 (de) * 2009-03-16 2010-09-23 Man Turbo Ag Vorrichtung und Verfahren zum Verbinden einer Schaufel mit einer Rotorwelle einer Strömungsmaschine
JP5538468B2 (ja) * 2012-03-30 2014-07-02 株式会社日立製作所 タービン動翼とタービンロータのピン結合部の加工方法及びタービン動翼
EP2690254B1 (en) * 2012-07-27 2017-04-26 General Electric Technology GmbH Turbine rotor blade root attachments
JP6836891B2 (ja) * 2016-12-16 2021-03-03 三菱パワー株式会社 回転機械
RU2682785C2 (ru) * 2017-01-10 2019-03-21 Андрей Витальевич Билан Вильчатые хвостовики рабочих лопаток

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB114826A (it) * 1917-03-31
US2326145A (en) * 1941-03-18 1943-08-10 Westinghouse Electric & Mfg Co Turbine blade fastening
US4135849A (en) * 1977-01-21 1979-01-23 Westinghouse Electric Corp. Pinned root turbine blade providing maximum friction damping
JPS5584804A (en) * 1978-12-20 1980-06-26 Hitachi Ltd Structure for fixing rotor blade
US4460316A (en) * 1982-12-29 1984-07-17 Westinghouse Electric Corp. Blade group with pinned root
JPS6232201A (ja) * 1985-08-05 1987-02-12 Hitachi Ltd 軸流回転機の動翼翼群構造

Also Published As

Publication number Publication date
CA2039990A1 (en) 1991-10-10
KR0153004B1 (ko) 1999-01-15
CA2039990C (en) 2002-01-15
CN1055575A (zh) 1991-10-23
US5100296A (en) 1992-03-31
JPH0772484B2 (ja) 1995-08-02
KR910018679A (ko) 1991-11-30
ITMI910809A0 (it) 1991-03-26
ITMI910809A1 (it) 1992-09-26
JPH04358702A (ja) 1992-12-11

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990331