DK1792055T3 - Beskyttelsesindretning til en turbinestator - Google Patents

Beskyttelsesindretning til en turbinestator Download PDF

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Publication number
DK1792055T3
DK1792055T3 DK05784000.1T DK05784000T DK1792055T3 DK 1792055 T3 DK1792055 T3 DK 1792055T3 DK 05784000 T DK05784000 T DK 05784000T DK 1792055 T3 DK1792055 T3 DK 1792055T3
Authority
DK
Denmark
Prior art keywords
turbine
protection device
rotor
sector
stator
Prior art date
Application number
DK05784000.1T
Other languages
English (en)
Inventor
Piero Iacopetti
Vincenzo Branchetti
Manuele Bigi
Original Assignee
Nuovo Pignone Spa
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 Nuovo Pignone Spa filed Critical Nuovo Pignone Spa
Application granted granted Critical
Publication of DK1792055T3 publication Critical patent/DK1792055T3/da

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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
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • 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
    • 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
    • F01D11/00—Preventing or minimising internal leakage of working-fluid, e.g. between stages
    • F01D11/08—Preventing or minimising internal leakage of working-fluid, e.g. between stages for sealing space between rotor blade tips and stator
    • 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
    • F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
    • F01D25/246—Fastening of diaphragms or stator-rings
    • 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
    • F05D2240/11—Shroud seal segments

Landscapes

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

Claims (3)

1. Beskyttelsesindretning (10) til en stator af en turbine af typen omfattende en serie af ringformede sektorer (12) tvunget til hinanden ved hjælp af forbindelsesorgan, hvor hver sektor af serien af sektorer (12) omfatter en første overflade (13), egnet til at komme i kontakt med statoren, der har mindst et hulrum (14) til kølingen af den tilsvarende sektor, og en anden overflade (17), der vender mod en rotor af turbinen, hvor i en hvilekonfiguration i hvilken turbinen ikke er i drift, den anden overflade (17) af hver sektor (12) har et aksialt afsnit med en excentricitet (40) i forhold til sporet af rotationsaksen af turbinen, hvorimod, i en driftskonfiguration i hvilken turbinen er i drift under systemforhold, beskyttelsesindretningen (10), på grund af uensartethed aftermale gradienter inden i turbinen, er udsat for både radial og aksial deformation, hvor den anden overflade (17) af hver sektor (12) har et aksialt afsnit, der er centreret med sporet af rotationsaksen af turbinen, hvor de andre overflader (17) af serien af sektorer (12) danner en cylindrisk overflade koaksialt med rotationsaksen af turbinen, hvor den adimensionaliserede excentricitet (40) i forhold til radiussen af rotoren er i området fra 0,253 til 0,086.
2. Beskyttelsesindretningen (10) ifølge krav 1, kendetegnet ved at excentriciteten (40) delt med radiussen af rotoren har en værdi i området fra 0,14 til 0,20.
3. Beskyttelsesindretningen (10) ifølge krav 1, kendetegnet ved at excentriciteten (40) delt med radiussen af rotoren er 0,17.
DK05784000.1T 2004-09-17 2005-09-13 Beskyttelsesindretning til en turbinestator DK1792055T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001781A ITMI20041781A1 (it) 2004-09-17 2004-09-17 Dispositivo di protezione per uno statore di una turbina
PCT/EP2005/009887 WO2006029844A1 (en) 2004-09-17 2005-09-13 Protection device for a turbine stator

Publications (1)

Publication Number Publication Date
DK1792055T3 true DK1792055T3 (da) 2017-05-01

Family

ID=35427242

Family Applications (1)

Application Number Title Priority Date Filing Date
DK05784000.1T DK1792055T3 (da) 2004-09-17 2005-09-13 Beskyttelsesindretning til en turbinestator

Country Status (9)

Country Link
US (1) US8371807B2 (da)
EP (1) EP1792055B1 (da)
JP (1) JP4920590B2 (da)
KR (1) KR101253786B1 (da)
CN (1) CN100549366C (da)
CA (1) CA2580472C (da)
DK (1) DK1792055T3 (da)
IT (1) ITMI20041781A1 (da)
WO (1) WO2006029844A1 (da)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20041781A1 (it) 2004-09-17 2004-12-17 Nuovo Pignone Spa Dispositivo di protezione per uno statore di una turbina
EP2746538B1 (fr) * 2012-12-24 2016-05-18 Techspace Aero S.A. Plaquette de retenue d'aube de redresseur de turbomachine avec découpes internes
EP3118419A1 (en) * 2015-07-15 2017-01-18 Siemens Aktiengesellschaft Non-concentrically shaped ring segment
JP2023042786A (ja) * 2021-09-15 2023-03-28 東芝エネルギーシステムズ株式会社 タービン段落シール機構およびタービン段落シール機構の製造方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3860358A (en) * 1974-04-18 1975-01-14 United Aircraft Corp Turbine blade tip seal
US4551064A (en) 1982-03-05 1985-11-05 Rolls-Royce Limited Turbine shroud and turbine shroud assembly
HU189210B (en) * 1982-12-28 1986-06-30 Richter Gedeon Vegyeszeti Gyar Rt,Hu Process for the production of new carbamates of antilipaemic effect, as well as therapeutic preparations containing them
US4784569A (en) * 1986-01-10 1988-11-15 General Electric Company Shroud means for turbine rotor blade tip clearance control
FR2597921A1 (fr) 1986-04-24 1987-10-30 Snecma Anneau de turbine sectorise
US5212940A (en) 1991-04-16 1993-05-25 General Electric Company Tip clearance control apparatus and method
US5380150A (en) * 1993-11-08 1995-01-10 United Technologies Corporation Turbine shroud segment
DE19915049A1 (de) 1999-04-01 2000-10-05 Abb Alstom Power Ch Ag Hitzeschild für eine Gasturbine
US6340285B1 (en) 2000-06-08 2002-01-22 General Electric Company End rail cooling for combined high and low pressure turbine shroud
JP4698847B2 (ja) * 2001-01-19 2011-06-08 三菱重工業株式会社 ガスタービン分割環
US6409471B1 (en) 2001-02-16 2002-06-25 General Electric Company Shroud assembly and method of machining same
EP1243756A1 (de) 2001-03-23 2002-09-25 Siemens Aktiengesellschaft Turbine
US6691019B2 (en) 2001-12-21 2004-02-10 General Electric Company Method and system for controlling distortion of turbine case due to thermal variations
ITMI20041780A1 (it) * 2004-09-17 2004-12-17 Nuovo Pignone Spa Dispositivo di protezione per uno statore di una turbina
ITMI20041781A1 (it) 2004-09-17 2004-12-17 Nuovo Pignone Spa Dispositivo di protezione per uno statore di una turbina

Also Published As

Publication number Publication date
EP1792055B1 (en) 2017-03-15
CA2580472C (en) 2013-03-12
US20090180863A1 (en) 2009-07-16
JP2008513658A (ja) 2008-05-01
EP1792055A1 (en) 2007-06-06
KR101253786B1 (ko) 2013-04-12
JP4920590B2 (ja) 2012-04-18
WO2006029844A1 (en) 2006-03-23
CN101023245A (zh) 2007-08-22
KR20070053348A (ko) 2007-05-23
ITMI20041781A1 (it) 2004-12-17
CN100549366C (zh) 2009-10-14
US8371807B2 (en) 2013-02-12
CA2580472A1 (en) 2006-03-23

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