BE570796A - - Google Patents

Info

Publication number
BE570796A
BE570796A BE570796DA BE570796A BE 570796 A BE570796 A BE 570796A BE 570796D A BE570796D A BE 570796DA BE 570796 A BE570796 A BE 570796A
Authority
BE
Belgium
Prior art keywords
valve
desc
sealing ring
seat
ring
Prior art date
Application number
Other languages
French (fr)
Publication of BE570796A publication Critical patent/BE570796A/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
    • F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
    • F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
    • F16K1/226—Shaping or arrangements of the sealing
    • F16K1/228—Movable sealing bodies

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multiple-Way Valves (AREA)

Description

       

  



   Gomme on peut s'en rendre compte dans le dessin, selon l'invention une bague libre d'étanchéisation de clapet 1, ppssède un pont 10 maintenu entre deux listels de guidage 11, 12, fixés au disque de clapet. En,l'occurrence le pont forme avec les listels de guidage deux chambres 5,6, fermées par trois mem- branes 2,3,4 une entre le pont et le disque de clapet et une chaque fois'entre la bride 1 sur la bague d'étanchéisation de clapet et les listels de guidage   11,120   Ces chambres peuvent alternativement par l'intermédiaire de canaux 7,8 être alimentées en air comprimé ou en un autre milieu de compression, ceci en vue de presser la bague d'étanchéisation de clapet dans le siège de boîtier ou de la soulever de ce siège-. Sa surface de siège est adaptée à la forme sphérique ou conique de la surface de siège sur le boîtier.

   La bague peut s'adapter à toute altération de forme   occasionnés   par une température élevée ou variable, ceci à l'aide de la pression hydraulique, ce qui fait que l'étanchéité entre garniture de boîtier et la bague d'étanchéisation de clapet est assurée sans que se pro- duise lorsque le clapet est ouvert un ballottement de la bague mobile d'étanchéi- sation de clapet, même pas en cas de vitesses très élevées du milieuo 
REVENDICATION 
Bague d'étanchéisation de clapet à commande hydraulique, se trouvant à la périphérie d'un clapet d'arrêt et de préférence en métal, caractérisée en ce que la bague   d'étanchéisation   de clapet possède un pont (10) maintenu entre deux listels de guidage (11,12) sur le clapet, avec lesquels il définit deux chambres (5,6) qui sont fermées par trois membranes (2,3,4),

   une entre le pont et le disque de clapet et chaque fois une entre la bride de bague (1) et les listels de guidage (11,12) sur le disque de clapet (9), en l'occurrence ces chambres pouvant être alternativement alimentées par des canaux   (7,8)   en air comprimé ou en un autre milieu de compression. 

**ATTENTION** fin du champ DESC peut contenir debut de CLMS **.



  



   As can be seen from the drawing, according to the invention a free valve sealing ring 1, ppssède a bridge 10 maintained between two guide strips 11, 12, fixed to the valve disc. In this case, the bridge forms with the guide lists two chambers 5,6, closed by three membranes 2,3,4 one between the bridge and the valve disc and each time between the flange 1 on the valve sealing ring and guide strips 11,120 These chambers can alternatively via ducts 7,8 be supplied with compressed air or another compression medium, with a view to pressing the valve sealing ring into the housing seat or lift it from that seat-. Its seat surface is matched to the spherical or conical shape of the seat surface on the housing.

   The ring can adapt to any change in shape caused by a high or variable temperature, this using hydraulic pressure, which ensures that the seal between the housing seal and the valve sealing ring is ensured. without the sloshing of the movable valve sealing ring occurring when the valve is open, not even at very high medium speeds.
CLAIM
Hydraulically actuated valve sealing ring, located at the periphery of a shut-off valve and preferably made of metal, characterized in that the valve sealing ring has a bridge (10) held between two checklists. guide (11,12) on the valve, with which it defines two chambers (5,6) which are closed by three membranes (2,3,4),

   one between the bridge and the valve disc and each time one between the ring flange (1) and the guide strips (11,12) on the valve disc (9), in this case these chambers can be alternately supplied by compressed air or other compression medium channels (7,8).

** ATTENTION ** end of DESC field can contain start of CLMS **.

Claims (1)

<Desc/Clms Page number 1> <Desc / Clms Page number 1> L'invention se rapporte à une bague d'étanchéisation de clapet, à commande hydraulique, pour clapets d'arrêt de milieux chauds, bague qui ne bal- lotte pas même en cas de vitesses élevéeso On connaît des bagues d'étanchéisation métalliques qui sont montées de manière mobile à la périphérie des disques de clapet et qui sont comprimées par la pression du milieu dans la position finale de fermeture. On connaît en outre des clapets d'étranglement ou d'arrêt dont le clapet est levé axialement de son siège et ensuite tournée Dans ces constructions il est indispepsable que les températures des milieux ne dépassent pas certaines limites normales, étant donné qu'autrement les parties de siège gauchissent à l'intérieur du boîtier. **ATTENTION** fin du champ CLMS peut contenir debut de DESC **. The invention relates to a valve sealing ring, hydraulically controlled, for shut-off valves in hot environments, which ring does not ballot even at high speeds. Metal sealing rings are known which are movably mounted on the periphery of the valve discs and which are compressed by the pressure of the medium in the final closed position. In addition, throttle or stop valves are known, the valve of which is axially lifted from its seat and then rotated. In these constructions it is essential that the temperatures of the media do not exceed certain normal limits, since otherwise the seat parts will warp inside the housing. ** CAUTION ** end of field CLMS may contain start of DESC **.
BE570796D BE570796A (en)

Publications (1)

Publication Number Publication Date
BE570796A true BE570796A (en)

Family

ID=189221

Family Applications (1)

Application Number Title Priority Date Filing Date
BE570796D BE570796A (en)

Country Status (1)

Country Link
BE (1) BE570796A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711510A (en) * 1991-12-17 1998-01-27 Stary; Gary M. Pipeline valve apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5711510A (en) * 1991-12-17 1998-01-27 Stary; Gary M. Pipeline valve apparatus

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