EP2531730B1 - Servomoteur de vanne actionné par un fluide - Google Patents

Servomoteur de vanne actionné par un fluide Download PDF

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Publication number
EP2531730B1
EP2531730B1 EP11703397.7A EP11703397A EP2531730B1 EP 2531730 B1 EP2531730 B1 EP 2531730B1 EP 11703397 A EP11703397 A EP 11703397A EP 2531730 B1 EP2531730 B1 EP 2531730B1
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EP
European Patent Office
Prior art keywords
actuating drive
fluid
actuator
fluidic
valve
Prior art date
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EP11703397.7A
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German (de)
English (en)
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EP2531730A1 (fr
Inventor
Jochen Schaible
Marcus Groedl
Stephan Schelp
Norbert Eufinger
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.)
Hoerbiger Automatisierungstechnik Holding GmbH
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Hoerbiger Automatisierungstechnik Holding GmbH
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Publication of EP2531730A1 publication Critical patent/EP2531730A1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/02—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member
    • F15B15/06—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement
    • F15B15/065—Mechanical layout characterised by the means for converting the movement of the fluid-actuated element into movement of the finally-operated member for mechanically converting rectilinear movement into non- rectilinear movement the motor being of the rack-and-pinion type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/18—Combined units comprising both motor and pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02—Installations or systems with accumulators
    • F15B1/022—Installations or systems with accumulators used as an emergency power source, e.g. in case of pump failure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/202—Externally-operated valves mounted in or on the actuator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2807—Position switches, i.e. means for sensing of discrete positions only, e.g. limit switches

Definitions

  • the present invention relates to a fluid-operated actuator to a valve, in particular a shut-off, safety or control valve.
  • valve actuators are known and in use.
  • this particular fluid-operated valve actuators see, eg EP 0665373 B1 . EP 1418343 B1 . EP 1593893 B1 and EP 2101061 A1 ).
  • Such fluid-operated valve actuators may include, in addition to a hydraulically or pneumatically actuated linear actuator, the slide may be coupled directly or optionally via a mechanical transducer to the input of the valve, a base valve having the control valves and / or other fluidic control.
  • the DE 9406760 U1 discloses a drive unit for valves, especially in shipbuilding.
  • a housing which encloses an electric motor, a driven by this pump, spreader elements and a hydraulic reservoir.
  • the housing is connected to a pivot drive, which comprises a piston with rack and a shaft.
  • the US 4647003 A discloses an actuator for the valve of a shut-off valve.
  • the actuating device comprises a housing with a rotatably mounted therein, coupled to the rotary shaft of the valve shaft with an associated pinion, with which meshes the rack of at least one designed as a pneumatic cylinder linear actuator.
  • one or two pneumatic cylinders can be activated be attached to the housing.
  • the present invention has set itself the task of providing a fluid-operated valve actuator, which is characterized by a particular practicality, especially for a broad user base particularly relevant properties such as high reliability and durability, low maintenance and ease of use, high power density and low Manufacturing and operating costs combined.
  • the fluid-operated valve actuator is characterized in particular by the fact that it comprises two opposing linear actuators and arranged between them, the slide coupling with each other mechanical converter whose output is coupled to the input of the valve comprises.
  • the valve actuator is constructed as a fluidic drive system in a modular manner from individual, assembled into a functional unit components in the form of the base unit, the two linear actuators and the mechanical transducer.
  • a particularly compact and efficient fluidic drive system is provided on a fitting, which can be designed as a closed system having only one electrical input and a mechanical output acting on the inlet of the fitting, and in this way to such an extent Maintenance and user-friendly, as was previously known only from electric valve actuators ago.
  • the joining of the said components to the compact, closed fluidic drive system can thereby be realized in particular in that the two linear actuators are flanged to the mechanical transducer, which in turn via a flange connection to the base unit (or possibly one in turn connected to the base unit Notbetuschistsblock) connected is.
  • the two linear actuators are flanged to the mechanical transducer, which in turn via a flange connection to the base unit (or possibly one in turn connected to the base unit Notbetuschistsblock) connected is.
  • the said fluid connections can be equipped with self-closing barriers, especially in the area of the dividing planes through which they pass, between the said components, which prevent the escape of fluid or the unintentional penetration of contaminants along the dividing planes, in particular if individual components have been dismantled for the purpose of maintenance ,
  • filter elements eg in the form of filter pots
  • the valve actuator according to the invention structurally further developing technical aspects prove to be particularly advantageous in hydraulic valve actuators according to the present invention.
  • Valve actuators have the particular effect that on the part of the user of the fluid-operated valve actuator with regard to maintenance and entertainment as electrical Valve actuators is considered to be completely equivalent, while preserving the specific advantages of fluid-operated valve actuators against electrical, namely the high power density and compactness, and reliability and ease of implementation of highly dynamic safety functions also required for explosion protection, the latter in particular the possibility To save fluid energy is to owe.
  • the pressurized fluid supply is decentralized, ie in each case only associated with a single valve actuator, organized by the base unit of the fluid-operated valve actuator according to the invention comprising a pressurized fluid supply unit.
  • a pressure fluid supply unit particularly preferably comprises a tank-powered hydraulic unit with a pump driven by an electric motor.
  • the said pressurized fluid supply unit preferably comprises an ambient medium driven by an electric motor, preferably via a filter system, and sucking in a pneumatic pump.
  • the fluid-operated valve actuator according to the invention has a filling connection which is suitable for first filling the fluid system with hydraulic fluid from a cartridge, in particular arranged on the base unit.
  • This allows the user-side commissioning of a hydraulically operated valve actuator according to the present invention, without the user being in any way in contact with hydraulic fluid.
  • This contributes to the superior (so) hydraulically operated valve actuators, which are superior in their operating behavior to electrical valve actuators, in applications in which user-friendliness is particularly important for cleanliness and a minimal risk of coming into contact with hydraulic fluid , is placed.
  • module or modular construction plays a significant role, which allows the provision of individualized, specifically adapted to the particular requirement valve actuators at extremely competitive costs, not only the converter and the two linear actuators in terms of their dimensions individually can be varied, but rather the possibility explained further below, functionally different linear actuators and mechanical transducers combine with each other.
  • the said mechanical converter can convert the linear movement of the slides of the two linear actuators into a rotational movement, namely if the valve has a rotatable locking member whose position can be changed by means of the valve actuator.
  • a mechanical transducer with a linear output can be combined to form a functional unit with the same linear actuators.
  • pneumatic or hydraulic linear actuators are installed, in turn, different embodiments can be used within the two groups such as pneumatic pneumatic actuators classical actuators, spring actuators with control air filling, spring actuators with pneumatic bias or fluid storage ,
  • the fluidic control typically provided for valve actuators of the type in question here may cooperate with an electro-fluidic signal converter, which in particular may be arranged upstream of the base unit and may have a proportional output behavior.
  • An external electrical control unit which may include input means, a setpoint input, a control electronics, a communication unit, a signal output and / or a signal generator, may furthermore be connected to a signal input connected to the electro-fluidic signal converter. In the sense of a closed control loop, the actual value signal of a sensor assigned to the fitting can be fed back to the electrical control unit.
  • At least one of the two linear actuators in particular both linear actuators, is / is designed as a fluid-actuated actuator on both sides, wherein both working spaces are constantly connected to a pressurized fluid supply are connected.
  • This is of particular advantage in pneumatic systems. Are in this sense both working spaces of the at least one double-sided fluid-actuated linear actuator connected directly to the pressurized fluid supply and acted upon by this and for positioning purposes, ie to change the position of the slide of the respective linear actuator, one of the two working spaces vented specifically, the slide of respective linear actuator in each operating position clamped with maximum rigidity, which allows a particularly good controllability.
  • fluid energy can be stored in a (especially external) accumulator to bring in case of failure of the pressurized fluid supply, the valve at least in a predetermined safety position.
  • a mechanical storage spring is integrated into a mechanical storage spring.
  • such a mechanical accumulator spring is biased by fluid pressure and locked in the biased position, so that they are not constantly applied to the slide of the respective linear actuator in the sense that would have to be permanently worked against the force of the mechanical storage spring.
  • the mechanical storage spring acts on the slide of the associated linear actuator only after actuation of an unlocking, by means of which a blockage blocking the storage spring is released.
  • a blockage blocking the storage spring is released only in an emergency by removing the blockage mechanical accumulator combines the advantages of high reliability of the valve actuator with other aspects such as economy, compactness and dynamic response.
  • the drawing illustrated, for actuating a valve, in particular a shut-off, safety or control valve serving fluidbetuschw, namely hydraulic actuator 1 comprises as main components a base unit 2 with an integrated pressure fluid supply unit 3, an emergency operating block 4, a flanged to this mechanical transducer 5 and a first linear actuator 6 and a second linear actuator 7.
  • the pressurized fluid supply unit 3 is a pump block 8, an electric motor 9 and a Tank 10 comprehensive hydraulic unit 11 executed.
  • the base unit 2 comprises, within the base block 12 connected directly to the pump block 8, the required control valves of the hydraulic control;
  • the actuating solenoids 13, which project from the base block 12 of the base unit 2 are shown corresponding solenoid valves.
  • the valve actuator For the explosion-proof design of the valve actuator is a base unit 2 together with the integrated pressure fluid supply unit 3 and the electrical and electronic components 14 enclosing flameproof enclosure provided from the in the drawing (only) the capsule base 15 shown, the associated capsule Hood is not shown, however.
  • the capsule base 15 is clamped between the base unit 2 and the emergency operating block 4. It has the explosion-proof bushings designed in a known form for the electrical supply, signal and control lines. Furthermore, in the base block 12 with the emergency operating block 4 connecting hydraulic lines flame arresters are arranged.
  • a connection 16 for an external hydraulic accumulator 17 (see. Fig. 4 and 5 ), which is designed and designed for an emergency operation of the valve actuator in the event of failure of the regular control.
  • the other an emergency operation of the valve actuator serving components such as emergency valves are housed.
  • To operate the emergency valves serve two devices, namely on the one hand a switch 18 and on the other hand a lever 19.
  • the switch 18 By means of the switch 18, an electrical actuation of the emergency valves is possible, for example in the event of failure of the regular control. Is the power supply interrupted and thus an actuation of the emergency valves by means of the switch 18 is not possible remains in any case, the purely mechanical actuation of the emergency valves by means of the lever 19th
  • the mechanical converter 5 comprises a designed as a converter block 20 housing, which is flanged directly to the valve to be operated, for which purpose the converter block 20 has threaded holes 21 for fastening screws on its underside. At the bottom of the transducer block is still acting on the shaft of the valve mechanical output 23 of the valve actuator. This includes in this embodiment a square socket 22. Alternative versions of the output to reliably transmit the necessary torque to the input of the valve, are known and in use in practice, such as a shaft connection by means of feather key.
  • the linear movement of the slide 81 of the two oppositely arranged on the mechanical transducer 5 flanged linear actuators 6 and 7 is converted into a rotational movement of the output 23.
  • a linear, parallel to the slides 81 forming piston 24 and 25 of the linear actuators 6 and 7 slidable rack 26 meshes with a pinion 27 which is rotatably connected to the mechanical output 23.
  • the rack 26 is part of a slide 72, which further comprises two connected at one end fixed to the rack cylindrical Druckund guide pieces 73 which are guided in each case an associated guide bush 74 and on which the front side abutting them piston 24 and 25 of the linear actuators 6 and 7 act.
  • a control box 30 covered by a sighting glass 28 having a sighting glass 29 is mounted on its upper side.
  • an optical position indicator 31 connected in a rotationally fixed manner to the output 23 is arranged with a position indicator 32 protruding into the sighting dome 28 and thus readable from all sides.
  • an angle encoder 33 whose signal is returned to the electronic control, as well as two also connected to the controller sensors 34 for Endlagenabfrage, the two end positions can be defined by pins 35 which in a grid 36 in a rotatably connected to the output 23 disc 37 can be inserted.
  • the linear actuator 6 comprises a cylinder 38 in which the piston 24 is sealingly guided;
  • the linear actuator 7 comprises a cylinder 39, in which the piston 25 is sealingly guided.
  • Both cylinders 38 and 39 are each end closed by a cover 40 which defines together with the respective associated cylinder and the guided in this piston 24 and 25, a hydraulic working space 41, in which an associated hydraulic line 42 opens.
  • Each of the two linear actuators is equipped with hydraulic cushioning.
  • located within the respective working space 41 near the associated cover 40 each have a disc 43 with a central bore 44 and overflow 45.
  • a pin 46 is disposed frontally, which, when the piston of the Disk 43 approaches, with a slight clearance (annular gap) dips into the bore 44, thereby further displacement of hydraulic fluid from the working space 41 via the connecting space 47 throttles into the hydraulic line 42 into and dampens in this way the further movement of the piston.
  • the discs 43 are complementary stops for the piston, for which purpose their exact position within the associated working space 41 by means of the adjusting screw 48 is adjustable.
  • the valve actuator 1 is constructed in a modular manner from the above-described individual, assembled into a functional unit components in the form of the base unit 2 including integrated pressure fluid supply unit 3, the Notbetuschistsblocks 4, the mechanical converter 5 and the two linear actuators 6 and 7.
  • said individual components are connected to one another by way of mutually paired flange surfaces.
  • a valve actuator in the form of a compact, closed, an electrical input and acting on the input of the valve mechanical output having fluidic drive system.
  • the individual components with each other hydraulically connecting fluid connections are equipped with self-closing shutters 49 in the area of their interspersed parting planes between the individual components. These only open when the two components concerned are fully assembled and, conversely, close automatically if the relevant components are disconnected when the valve actuator is disassembled.
  • the mechanical transducer shown at the connection surfaces for the linear actuators 6 and 7 each have three provided with shut-offs 49 for hydraulic fluid on, namely one for working pressure, tank and memory, the memory port functionally only comes into play, if the individual Configuration of the valve actuator, a linear actuator with a structurally associated hydraulic accumulator comprehensive assembly (see below) is used.
  • the mechanical converter 5 shown has four hydraulic fluid transfers equipped with barriers 49, namely two for the working pressure of the two linear actuators and one each for tank and accumulator.
  • the barriers are structurally associated respectively filter elements 82 in the form of recorded in a pot 83 filters.
  • the valve actuator is prepared for a first filling of the fluid system with hydraulic fluid from (at least) one cartridge.
  • a filling connection 50 is provided on the emergency operating block 4.
  • Part of this filling connection is (cf. Fig. 9 ) designed as a hollow needle piercing mandrel 51, which opens the closure seal 52 of a screwed into the filling port 50 cartridge 53.
  • the cartridge 53 or the last cartridge required for complete filling of the fluid system remains at the filling port 50; it closes this and at the same time provides a compensation volume.
  • a hydraulic accumulator integrated into one of the two linear actuators 6 and 7 may be provided.
  • a hydraulic accumulator module 54 is flanged to the end face of the linear actuator 6. This comprises a cylinder portion 55, a cover 56 which closes this end face and a mounting and coupling plate 57 closing the cylinder portion 55 at the other end.
  • a guide pin 58 is mounted on the cover 56, on which a stack of disk springs 59 is guided, which on the one hand abuts on the one hand Bearing 60 of the guide pin 58 is supported and on the other hand acts on the displaceably guided in the cylinder portion 55 piston 61.
  • Piston 61, cylinder section 55 and mounting and coupling plate 57 thereby limit a storage space 62, which is connected via a running in the mounting and coupling plate 57 hydraulic line 63 with the memory-side transfer 64 in combination. This is, as well as the corresponding actuator-side transfer 65, again equipped with a self-closing barrier 49.
  • the hydraulic fluid clamped in the storage space 62 is switched to one of the two linear actuators 6 or 7 during emergency actuation of the valve actuator via a corresponding actuation of the valves of the emergency actuation block 4, depending on whether the valve is to be opened or closed for the safety position close is. The same is true for the rest of the use of the external hydraulic accumulator 17 described above.
  • the linear actuators can be made relatively small, which allows a particularly compact design of the valve actuator.
  • valve actuator By any and demand-oriented equipment of the valve actuator with a hydraulic storage module 54 on one of the two linear actuators, with two hydraulic storage modules 54 on both linear actuators and / or an external hydraulic accumulator, the valve actuator can be seen flexibly to the respective requirements as well as to the respective spatial Adjust conditions.
  • one of the linear actuators can be designed as a pure spring actuator 70, which, like Fig. 11 illustrated, an integrated mechanical storage spring 71 includes and otherwise constructed substantially like the hydraulic storage module explained above.
  • the two linear actuators on the mechanical transducer 5 can be functionally combined arbitrarily and the converter at each of its two connection points a fluidic actuator, a mechanically coupled Federaktuator, a mechanically decoupled spring actuator with fluidic actuation or a mechanically decoupled spring actuator with fluidic actuation and a separate independent receive mechanically coupled fluidic actuator, wherein the fluidic control is taken in all cases by the base unit.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Fluid-Driven Valves (AREA)
  • Actuator (AREA)
  • Mechanically-Actuated Valves (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Magnetically Actuated Valves (AREA)

Claims (11)

  1. Mécanisme de commande de robinet actionné par fluide (1), en particulier mécanisme de commande de robinets d'arrêt, de sécurité ou de réglage, comprenant une unité de base (2) présentant des soupapes de commande, deux déclencheurs linéaires (6, 7) faces l'un à l'autre, actionnables de façon fluidique via les soupapes de commande, un convertisseur mécanique (5) disposé entre les deux déclencheurs linéaires, couplant leurs registres (81) entre eux, dont la sortie est couplée à l'entrée du robinet, et une unité d'alimentation en fluide sous pression (3) à entraînement électrique intégrée dans l'unité de base (2), sachant que le mécanisme de commande de robinet emploie du fluide hydraulique en tant que fluide de travail, dispose d'un raccordement (16) pour un accumulateur hydraulique externe (17) et est conçu en tant que système d'entraînement fluidique fermé présentant une entrée électrique et un entraînement de sortie mécanique (23) agissant à l'entrée du robinet,
    caractérisé en ce que
    le mécanisme de commande de robinet (1) est conçu de façon modulaire à partir de composantes individuelles regroupées en une unité fonctionnelle sous forme de l'unité de base, des deux déclencheurs linéaires et du convertisseur mécanique, et toutes les liaisons fluidiques entre l'unité de base (2) et les déclencheurs linéaires (6, 7) ainsi que le cas échéant le convertisseur mécanique (5), passent à l'intérieur des composantes concernées, de sorte qu'il n'existe aucune ligne fluidique libre, sachant qu'il présente en outre un dispositif de remplissage auto-aspirant approprié pour le premier remplissage du système fluidique en fluide hydraulique provenant d'une cartouche (53), disposé en particulier sur l'unité de base (2) ou sur un bloc de déclenchement d'urgence (4) prévu le cas échéant, et comprenant un raccordement de remplissage (50), lequel ne nécessite aucun raccordement externe pour la recharge, outre le raccordement de cartouche.
  2. Mécanisme de commande selon la revendication 1, caractérisé en ce que l'unité d'alimentation en fluide sous pression (3) comprend un groupe hydraulique (11) alimenté par un réservoir (10) avec une pompe entraînée par un moteur électrique (9).
  3. Mécanisme de commande selon la revendication 1, caractérisé en ce que les liaisons fluidiques au niveau des plans de séparation qu'elles traversent entre les composantes sont dotées d'arrêts (49) à auto-fermeture auxquels sont attribués le cas échéant des éléments de filtre (82) respectifs dans la construction.
  4. Mécanisme de commande selon l'une des revendications 1 à 3, caractérisé en ce que les deux déclencheurs linéaires (6, 7) sont bridés sur le convertisseur mécanique (5), qui est relié de son côté, par une liaison par bride, à l'unité de base (2) ou à un bloc de déclenchement d'urgence (4) disposé entre l'unité de base (2) et le convertisseur.
  5. Mécanisme de commande selon l'une des revendications 1 à 4, caractérisé en ce qu'il présente des moyens d'affichage, des interrupteurs de fin de course, des butées de fin de course, des amortisseurs de fin de course, des moyens d'actionnement manuels et/ou des capteurs de position pré-réglés ou réglables de manière flexible.
  6. Mécanisme de commande selon l'une des revendications 1 à 5, caractérisé en ce qu'au moins un des déclencheurs linéaires (6, 7) est conçu en tant que déclencheur à double action, alimenté par fluide des deux côtés, sachant que les deux espaces de travail
    du déclencheur linéaire concerné sont raccordés en permanence à une alimentation sous pression et alimentés en fluide sous pression.
  7. Mécanisme de commande selon l'une des revendications 1 à 6, caractérisé en ce qu'au moins un ressort à mémoire mécanique (59 ; 71) est intégré dans au moins un des deux déclencheurs linéaires (6, 7 ; 70) ou au moins un groupe de construction comprenant un des deux déclencheurs linéaires (6, 7).
  8. Mécanisme de commande selon la revendication 7, caractérisé en ce que l'au moins un ressort à mémoire mécanique (59) n'alimente pas le registre (81) du déclencheur linéaire concerné en permanence, mais seulement uniquement après déclenchement d'un déverrouillage au moyen duquel un verrouillage bloquant les ressorts à mémoire est levé.
  9. Mécanisme de commande selon la revendication 7 ou la revendication 8, caractérisé en ce que les ressorts à mémoire mécaniques (59) sont contraints et bloqués par un fluide, sachant qu'en particulier le verrouillage fluidique peut être déclenché électriquement lorsque des évènements perturbateurs définis surviennent et le mécanisme de commande adopte une position de sécurité définie.
  10. Mécanisme de commande selon l'une des revendications 1 à 9, caractérisé en ce qu'un accumulateur de pression fluidique doté d'un ressort à mémoire (59) est employé, lequel dans l'état chargé, fournit au moins l'énergie fluidique nécessaire pour que le robinet atteigne une position de sécurité, y compris les réserves de sécurité nécessaires, en cas de défaillance d'une unité d'alimentation en fluide sous pression (3).
  11. Mécanisme de commande selon l'une des revendications 1 à 10, caractérisé en ce que les deux déclencheurs linéaires peuvent être combinés au choix de façon fonctionnelle sur le convertisseur mécanique, et le convertisseur peut recevoir sur ses deux points de raccordement, un déclencheur fluidique, un déclencheur à ressort couplé mécaniquement, un déclencheur à ressort désaccouplé mécaniquement à actionnement fluidique ou un déclencheur à ressort désaccouplé mécaniquement à actionnement fluidique ainsi qu'un déclencheur fluidique couplé mécaniquement supplémentaire indépendant de celui-ci, sachant que la commande fluidique est prise en charge par l'unité de base dans tous les cas.
EP11703397.7A 2010-02-05 2011-02-04 Servomoteur de vanne actionné par un fluide Active EP2531730B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010007137A DE102010007137A1 (de) 2010-02-05 2010-02-05 Fluidbetätigter Stellantrieb an einer Armatur
PCT/EP2011/000527 WO2011095350A1 (fr) 2010-02-05 2011-02-04 Servomoteur actionné par un fluide dans une robinetterie

Publications (2)

Publication Number Publication Date
EP2531730A1 EP2531730A1 (fr) 2012-12-12
EP2531730B1 true EP2531730B1 (fr) 2015-06-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP11703397.7A Active EP2531730B1 (fr) 2010-02-05 2011-02-04 Servomoteur de vanne actionné par un fluide

Country Status (9)

Country Link
US (1) US8752806B2 (fr)
EP (1) EP2531730B1 (fr)
JP (1) JP5816200B2 (fr)
KR (1) KR101730208B1 (fr)
CN (1) CN102834617B (fr)
BR (1) BR112012019643B1 (fr)
DE (1) DE102010007137A1 (fr)
RU (1) RU2551468C2 (fr)
WO (1) WO2011095350A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
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WO2016202354A1 (fr) * 2015-06-15 2016-12-22 Festo Ag & Co. Kg Entraînement rotatif muni d'un dispositif de renvoi de signaux de position et d'un ensemble soupape de processus

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KR20120120285A (ko) 2012-11-01
EP2531730A1 (fr) 2012-12-12
CN102834617B (zh) 2016-03-02
US20130015379A1 (en) 2013-01-17
RU2551468C2 (ru) 2015-05-27
JP2013519046A (ja) 2013-05-23
US8752806B2 (en) 2014-06-17
DE102010007137A1 (de) 2011-08-11
BR112012019643B1 (pt) 2021-01-12
CN102834617A (zh) 2012-12-19
WO2011095350A1 (fr) 2011-08-11
RU2012134334A (ru) 2014-03-10
JP5816200B2 (ja) 2015-11-18
KR101730208B1 (ko) 2017-05-11
BR112012019643A2 (pt) 2016-05-03

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