CH331945A - Sealing device for the guide vanes on water turbines - Google Patents

Sealing device for the guide vanes on water turbines

Info

Publication number
CH331945A
CH331945A CH331945DA CH331945A CH 331945 A CH331945 A CH 331945A CH 331945D A CH331945D A CH 331945DA CH 331945 A CH331945 A CH 331945A
Authority
CH
Switzerland
Prior art keywords
rail
guide vanes
sealing device
dovetail
guide
Prior art date
Application number
Other languages
German (de)
Inventor
Schurmann Jean
Original Assignee
Nydqvist & Holm Ab
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 Nydqvist & Holm Ab filed Critical Nydqvist & Holm Ab
Publication of CH331945A publication Critical patent/CH331945A/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03BMACHINES OR ENGINES FOR LIQUIDS
    • F03B3/00Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/16Stators
    • F03B3/18Stator blades; Guide conduits or vanes, e.g. adjustable
    • F03B3/183Adjustable vanes, e.g. wicket gates
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05BINDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00Components
    • F05B2240/57Seals
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Hydraulic Turbines (AREA)

Description

  

  Dichtungsvorrichtung für die Leitschaufeln an Wasserturbinen    Die vorliegende Erfindung betrifft eine       i)iehtung:svorrichtung    für die     Leitschaufeln          :iii    Wasserturbinen. Ein Ausführungsbeispiel       des        1"rfindungs#)#@egeristandes    ist.

   auf der     bei-          Zeichnung    veranschaulicht, wobei       Pig.l    die     Aussenansicht    einer     Leitschaufel.          init    Nute für die Dichtungsleiste,       Fig.    2 den     (lrundriss    einer Anzahl     Leit-          s(-iiaiifelti    in     -eselilossener    Stellung und       Fig.    3 einen Schnitt durch die     Dichtungs-          :'ol'l.'iehtlin-    zeigt.  



       L    in bei geschlossenen     Leitschaufeln    gute       1)ielitun",-    zu erhalten, wird in die dickere  Partie der Leitschaufeln bei     --1    eine     Gununi-          leiste    eingelegt, an welcher die Spitze der     da-          ni,lienlie\;,enden        Leitschaufel    anliegt. Bis jetzt       it-ar    die Schwierigkeit darin gelegen, die       G-mninileiste    so sicher zu befestigen, dass sie       iiielit    in dem Augenblick, wo der Leitapparat.

         iiffnete,    durch den Wasserstrom herausgespült       wurde.     



  Das Beispiel bietet grosse Sicherheit gegen       das        Herausspülen    der Dichtung. Die Gummi  leiste ? ist in     einer        l:letallschiene    3 mit     sehwa.l-          benscInvanzförmigem    Querschnitt     fest.villkani-          siert.    Um die Festhaltung der Gummileiste  weiter zu sichern, ist diese und die     Metall-          schiene        mit        Durchbohrungen        und        darin     Stiften versehen.

   Die Schiene 3 liegt  in der Leitschaufel in einer Nute, deren eine  Kante der Form der Schiene 3 angepasst ist.       ;,Ili    der andern Kante ist Platz für eine keil  förmige     Festspannleiste    4, die mit Schrauben    5 befestigt wird und die Schiene 3 in ihrer  rage festhält. Die Schiene befindet sich in  der von der hintern     Nutenwand    und der  Leiste seitlich begrenzten     Ausnehmung    mit       scliwalbenschwanzförmigem    Querschnitt. Um  zwischen der Schiene und der     Leitschaufel     eine Dichtung zu erhalten, ist eine Gummi  dichtung 7 eingelegt.  



  Mit dieser Vorrichtung wird ausser guter  Befestigung auch der Vorteil erzielt,     da.ss    man  die Dichtung einsetzen bzw. herausnehmen  kann, ohne den Leitapparat abzumontieren,  da eine     Verschiebung    in der Längsrichtung  der Dichtung nicht vorzukommen braucht.



  Sealing device for the guide vanes on water turbines The present invention relates to a i) sealing device for the guide vanes: iii water turbines. One embodiment of the 1 "rfindungs #) # @ egeristandes is.

   illustrated on the at- drawing, Pig.l showing the exterior of a guide vane. with grooves for the sealing strip, Fig. 2 shows the outline of a number of guide s (-iiaiifelti in -esellosener position and Fig. 3 shows a section through the sealing-: 'ol'l.'ichtlin-.



       In order to obtain good 1) ielitun ", - with closed guide vanes, a gununite strip is inserted into the thicker part of the guide vanes at -1, on which the tip of the linear end of the guide vane rests now the difficulty lies in securing the G-mini bar so securely that it iiielit at the moment where the guide apparatus.

         opened through which the stream of water was flushed out.



  The example offers great security against the seal being washed out. The rubber bar? is firmly.villcanized in a l: lethal splint 3 with a sehwa.lbenscInvanz-shaped cross-section. In order to further secure the retention of the rubber strip, this and the metal rail are provided with through-holes and pins in them.

   The rail 3 lies in the guide vane in a groove, one edge of which is adapted to the shape of the rail 3. ;, Ili the other edge is space for a wedge-shaped clamping bar 4, which is attached with screws 5 and holds the rail 3 in its rage. The rail is located in the recess, laterally limited by the rear wall of the groove and the bar, with a cross-section in the shape of a swallowtail. In order to obtain a seal between the rail and the guide vane, a rubber seal 7 is inserted.



  In addition to good fastening, this device also has the advantage that the seal can be inserted or removed without dismantling the diffuser, since there is no need for a displacement in the longitudinal direction of the seal.

 

Claims (1)

PATENTANSPRUCH Dichtungsvorrichtung für die Leitschau feln an Wasserturbinen, welche Gummileisten aufweist, die in schwalbenschwanzförmige Schienen längs der Berührungslinien zwischen den Leitschaufeln eingelegt sind, dadurch ge kennzeichnet, dass die Gummileisten (2) in :1Tetallsehienen (3) festvulkanisiert sind, wel che in Nuten in den Leitschaufeln (1) be festigt sind. UNTERANSPRÜCHE 1. Dichtungsvorrichtung nach Patentan spruch, dadurch gekennzeichnet, dass die Gummileiste (2) und die Schiene (3) mit ein gebohrten Stiften (6) versehen sind, um die Lage der Gummileiste (2) in der Schiene (3) zusätzlich zu sichern. PATENT CLAIM Sealing device for the guide vanes on water turbines, which has rubber strips which are inserted into dovetail-shaped rails along the lines of contact between the guide vanes, characterized in that the rubber strips (2) are firmly vulcanized in: 1Tetallsehienen (3), wel che in grooves in the guide vanes (1) are fastened. SUBClaims 1. Sealing device according to patent claim, characterized in that the rubber strip (2) and the rail (3) are provided with a drilled pin (6) to additionally secure the position of the rubber strip (2) in the rail (3) . 2. Diehtungsvorrichtung nach Patentan spruch, dadurch gekennzeichnet, dass in der Nute der Leitschaufel (1) ausser der Metall schiene (3) mit schwalbensehwanzförmigem Querschnitt eine Festspannleiste (4) sieh be findet, um die Schiene mechanisch in der von der einen Nutenwand und der Festspannleiste seitlich begrenzten Ausnehmung mit schwal- bensehwanzförmigem Querschnitt festzuhal ten. 2. Diehtungsvorrichtung according to patent claim, characterized in that in the groove of the guide vane (1) except for the metal rail (3) with dovetail-shaped cross-section a clamping strip (4) see be to the rail mechanically in the one of the groove wall and the Clamping bar to hold a laterally limited recess with a dovetail-shaped cross-section. 3. Diehtungsvorrichtung nach Patentan spruch, dadurch gekennzeichnet, da.ss zwisehen Schiene (3) und Leitsehaufel (l.) eine Dieh- l.ung (7) eingelegt ist, um das Eindringen von Nasser zwischen Schiene (3) und Leit- schaufel (1) zu verhindern. 3. Diehtungsvorrichtung according to patent claim, characterized in that between the rail (3) and the guide vane (l.) A die (7) is inserted to prevent the penetration of water between the rail (3) and the guide vane (1) to prevent.
CH331945D 1955-06-09 1955-06-09 Sealing device for the guide vanes on water turbines CH331945A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH331945T 1955-06-09

Publications (1)

Publication Number Publication Date
CH331945A true CH331945A (en) 1958-08-15

Family

ID=4502267

Family Applications (1)

Application Number Title Priority Date Filing Date
CH331945D CH331945A (en) 1955-06-09 1955-06-09 Sealing device for the guide vanes on water turbines

Country Status (1)

Country Link
CH (1) CH331945A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742046A1 (en) * 1987-12-11 1989-06-29 Rodenberg Kunststofftech GUIDE BLADE FOR HYDROPOWER ENGINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3742046A1 (en) * 1987-12-11 1989-06-29 Rodenberg Kunststofftech GUIDE BLADE FOR HYDROPOWER ENGINES
US4946347A (en) * 1987-12-11 1990-08-07 Kunststofftechnik Rodenberg Gmbh & Co. Kg Turbine blade for hydroelectric generators

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