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WO2009088299A2 - Procédé et dispositif d'étanchéité entre une aube directrice et un carter de turbine - Google Patents

Procédé et dispositif d'étanchéité entre une aube directrice et un carter de turbine Download PDF

Info

Publication number
WO2009088299A2
WO2009088299A2 PCT/NO2009/000003 NO2009000003W WO2009088299A2 WO 2009088299 A2 WO2009088299 A2 WO 2009088299A2 NO 2009000003 W NO2009000003 W NO 2009000003W WO 2009088299 A2 WO2009088299 A2 WO 2009088299A2
Authority
WO
WIPO (PCT)
Prior art keywords
turbine housing
guide vane
seal material
seal
accordance
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.)
Ceased
Application number
PCT/NO2009/000003
Other languages
English (en)
Other versions
WO2009088299A3 (fr
Inventor
Ole Gunnar Dahlhaug
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.)
Dynavec AS
Original Assignee
Dynavec AS
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 Dynavec AS filed Critical Dynavec AS
Publication of WO2009088299A2 publication Critical patent/WO2009088299A2/fr
Publication of WO2009088299A3 publication Critical patent/WO2009088299A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16—Stators
    • F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
    • F03B3/183—Adjustable vanes, e.g. wicket gates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F03B11/006—Sealing arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2280/00—Materials; Properties thereof
    • F05B2280/40—Organic materials
    • F05B2280/4004—Rubber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/02—Rubber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Definitions

  • This invention relates to a method for sealing between a guide vane and a turbine housing. More particularly, it relates to a method for sealing between a guide vane and a turbine housing, the guide vane being rotatable or movable in the turbine housing, and there being arranged a seal between the turbine housing and the guide vane.
  • the invention also includes a device for practising the method.
  • Turbines are subjected to wear from the fluid which is flowing through the turbine. Turbines which are supplied with fluvial water typically wear considerably more than turbines supplied with water from a reservoir. The cause is that fluvial water often contains considerable amounts of sand.
  • the invention has for its object to remedy or reduce at least one of the drawbacks of the prior art .
  • Another aspect of the method includes, in addition, the operations of:
  • a seal is provided for the guide vane in a turbine housing, the guide vane being rotatable or movable in the turbine housing and there being arranged a seal between the turbine housing and guide vane, the seal material of which is selected from a group of materials which possess a quality of being able to take shape of a worn surface between the turbine housing and the guide vane when being pressed against the worn surface .
  • the seal material may be selected from, for example, the material group of elastomers, synthetic materials, naturally occurring materials, metallic materials or combinations thereof .
  • An aspect of the device is that the seal material is arranged in the guide vane and is arranged to be pressed against the turbine housing.
  • the seal material is arranged in the turbine housing and is arranged to be pressed against the guide vane .
  • a hydraulic pressure is applied to the seal material.
  • a force which may be provided by means of an actuator is applied to the seal material .
  • the force may be provided by means of a spring.
  • the proposed method and device enable a substantially prolonged life for guide vanes and adjacent surfaces in the turbine housing as the seals maintain, at least partially, an acceptable efficiency in a turbine plant.
  • Figure 1 shows partly schematically an axial section through a turbine housing
  • Figure 2 shows, on a larger scale, a section of figure 1
  • Figure 3 shows a section II-II of figure 2.
  • the reference numeral 1 indicates a turbine plant including a turbine housing 2, a turbine 4 and a number of guide vanes 6.
  • a turbine housing 2 for practical application is normally assembled from a number of components not shown.
  • an abutting surface 8, on which the guide vane 6 abuts is often constituted by an annular wear part. In this connection it is considered to be part of the turbine housing 2.
  • the guide vane 6 is rotatably supported in the turbine housing 2 by means of sleeve bearings 10 which are placed in guide vane bores 12, see figure 2.
  • the guide vane 6 is provided with four seals 14, in which a seal material 16 in the form of a relatively hard, reinforced rubber material is in a recess 18 in the guide vane 6.
  • a seal material 16 in the form of a relatively hard, reinforced rubber material is in a recess 18 in the guide vane 6.
  • the seal material 16 is principally sealing and axially movable in the recess 18 but may also, especially before the seal material 16 wears, fill the recess 18 completely. If desirable, the seal material 16 may be joined to the recess 18 along its circumference, for example by means of gluing.
  • the recesses 18 communicate with a centre bore 20 in the guide vane 6 by means of channels 22.
  • the shown section of the guide vane 6 of figures 1 and 2 has been taken along an arrow-marked stepped section of figure 3.
  • the channels 22 are shown schematically.
  • the centre bore 20 is connected to a source of pressurized fluid, normally water.
  • the circumstance of the seal material 16 being pressed against the abutting surface 8 may also lead to the wear rate being reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)
  • Hydraulic Turbines (AREA)
  • Sealing Devices (AREA)

Abstract

L'invention concerne un procédé et un dispositif destinés à assurer une étanchéité entre une aube directrice (6) située dans un carter (2) de turbine et ledit carter (2) de turbine, l'aube directrice (6) pouvant être animée d'une rotation ou d'une translation dans le carter (2) de turbine et un joint (14) étant disposé entre le carter (2) de turbine et l'aube directrice (6), et le procédé comportant les étapes consistant à : sélectionner un matériau (16) d'étanchéité parmi un groupe de matériaux capables de prendre la forme d'une surface usée entre le carter (2) de turbine et l'aube directrice (6) lorsqu'ils sont pressés contre la surface usée ; et à presser le matériau (16) d'étanchéité contre la surface usée.
PCT/NO2009/000003 2008-01-08 2009-01-05 Procédé et dispositif d'étanchéité entre une aube directrice et un carter de turbine Ceased WO2009088299A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20080117 2008-01-08
NO20080117A NO329047B1 (no) 2008-01-08 2008-01-08 Anordning for å tette mellom en ledeskinne og et turbinhus

Publications (2)

Publication Number Publication Date
WO2009088299A2 true WO2009088299A2 (fr) 2009-07-16
WO2009088299A3 WO2009088299A3 (fr) 2010-04-08

Family

ID=40853644

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000003 Ceased WO2009088299A2 (fr) 2008-01-08 2009-01-05 Procédé et dispositif d'étanchéité entre une aube directrice et un carter de turbine

Country Status (5)

Country Link
AR (1) AR070115A1 (fr)
CL (1) CL2009000014A1 (fr)
NO (1) NO329047B1 (fr)
PE (1) PE20100002A1 (fr)
WO (1) WO2009088299A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120121386A1 (en) * 2009-07-14 2012-05-17 Dynavec As Method and Device for Counteracting Wear and Tear Around a Guide Vane
JP2024034561A (ja) * 2022-09-01 2024-03-13 株式会社東芝 ガイドベーンおよび水力機械

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110685844B (zh) * 2019-11-08 2025-04-01 东方电气集团东方电机有限公司 一种水轮机活动导叶端面密封结构

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1685260A (en) * 1926-06-17 1928-09-25 William M White Guide vane
US1817654A (en) * 1930-08-27 1931-08-04 Newport News S & D Co Adjustable seal for hydraulic turbine gates and the like
SE88257C1 (sv) * 1934-06-18 1937-01-05 Ekvall, A. Ledskeneapparat
FR1182583A (fr) * 1957-09-11 1959-06-26 Creusot Forges Ateliers Dispositif d'étanchéité entre deux organes susceptibles de venir au contact l'un de l'autre
FR1257377A (fr) * 1959-07-01 1961-03-31 Vevey Atel Const Mec Distributeur à aubes mobiles destiné à une turbine à basse chute
FR1317759A (fr) * 1961-05-09 1963-05-08
FR83266E (fr) * 1963-03-14 1964-07-17 Creusot Forges Ateliers Dispositif d'étanchéité entre deux organes susceptibles de venir au contact l'un de l'autre
US3332441A (en) * 1964-09-02 1967-07-25 Allis Chalmers Mfg Co Wicket gate end seals
US3601497A (en) * 1969-10-24 1971-08-24 Allis Chalmers Mfg Co Wicket gate end seal for hydraulic machine
US3743435A (en) * 1971-09-03 1973-07-03 Dominion Eng Works Ltd Seal manufacture and assembly
SU503037A1 (ru) * 1974-04-08 1976-02-15 Ленинградский Дважды Ордена Ленина Металлический Завод Им. 22 Сьезда Кпсс 4Торцевое уплотнение лопаток направл ющнго аппарата гидромашины
CA1052231A (fr) * 1976-04-22 1979-04-10 Dominion Engineering Works Limited Etancheite sur palier de turbine hydraulique
CA1058056A (fr) * 1976-11-04 1979-07-10 Dominion Engineering Works Limited Garnitures d'etancheite pour vannes de turbo-machines hydrauliques
CA1095373A (fr) * 1978-06-01 1981-02-10 Gleb S. Schegolev Montage de joint d'etancheite sur autres directrices de diffuseur de machine hydraulique
JPS5442543A (en) * 1978-07-31 1979-04-04 Hitachi Ltd Guide vane water leakage preventer
JPS58133484A (ja) * 1982-02-03 1983-08-09 Toshiba Corp 水力機械
JPH0352382U (fr) * 1989-09-29 1991-05-21
JP3270575B2 (ja) * 1993-06-28 2002-04-02 株式会社日立製作所 ガイドベーンのシール装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120121386A1 (en) * 2009-07-14 2012-05-17 Dynavec As Method and Device for Counteracting Wear and Tear Around a Guide Vane
US8616833B2 (en) * 2009-07-14 2013-12-31 Dynavec As Method and device for counteracting wear and tear around a guide vane
JP2024034561A (ja) * 2022-09-01 2024-03-13 株式会社東芝 ガイドベーンおよび水力機械

Also Published As

Publication number Publication date
AR070115A1 (es) 2010-03-17
NO20080117L (no) 2009-07-09
WO2009088299A3 (fr) 2010-04-08
NO329047B1 (no) 2010-08-02
CL2009000014A1 (es) 2010-02-05
PE20100002A1 (es) 2010-02-05

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