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EP1731770B1 - Circuit pneumatique pour un système d'extraction de fumée et de ventilation - Google Patents

Circuit pneumatique pour un système d'extraction de fumée et de ventilation Download PDF

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Publication number
EP1731770B1
EP1731770B1 EP06011193A EP06011193A EP1731770B1 EP 1731770 B1 EP1731770 B1 EP 1731770B1 EP 06011193 A EP06011193 A EP 06011193A EP 06011193 A EP06011193 A EP 06011193A EP 1731770 B1 EP1731770 B1 EP 1731770B1
Authority
EP
European Patent Office
Prior art keywords
valve
bore
connection bore
ventilation
pressure chamber
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.)
Not-in-force
Application number
EP06011193A
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German (de)
English (en)
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EP1731770A2 (fr
EP1731770A3 (fr
Inventor
Andreas Grasl
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Individual
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Individual
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Publication of EP1731770A2 publication Critical patent/EP1731770A2/fr
Publication of EP1731770A3 publication Critical patent/EP1731770A3/fr
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Publication of EP1731770B1 publication Critical patent/EP1731770B1/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
    • F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/70—Power-operated mechanisms for wings with automatic actuation
    • E05F15/72—Power-operated mechanisms for wings with automatic actuation responsive to emergency conditions, e.g. fire
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke

Definitions

  • the invention relates to a pneumatic circuit arrangement for a smoke extraction and ventilation system with pneumatic cylinders according to the preamble of claim 1.
  • the pneumatic circuit is provided for supplying pneumatic cylinders in a flue and ventilation system.
  • Conventional pneumatic smoke evacuation systems are powered either from CO 2 cartridges or from compressed air tanks fed by compressors or from a reserve air tank provided in addition to storage tanks of a compressor. With the reserve air tank, the power supply should be secured even when the compressor fails and the usual storage tank is emptied, which takes over the energy supply to power the pneumatic cylinder during normal ventilation operation of a smoke extraction and ventilation system.
  • the power supply of the pneumatic cylinder for the smoke extraction case must be done through pipes, so it can not easily be used hoses are used.
  • valves with very low flow rate can be used, which therefore can only be used as control valves and can not be used directly to power the pneumatic cylinder.
  • these control valves must be connected to at least two lines, namely a supply line and a controlled line.
  • a pneumatic circuit arrangement of the type mentioned is known, which is fed with compressed air from a storage tank as a secondary air source and a compressor as a pressure medium source.
  • Trigger stations in the form of temperature-dependent bursting elements are connected via a respective line to a control input of a fire protection valve, which is vented when a hazardous temperature is exceeded, so that the fire protection valve switches.
  • a conduit from the reservoir and a conduit to a Verstellzylinderanssen are connected to a sliding door with the atmosphere and the entire control and the secondary pressure medium source are vented so that the sliding door can be manually operated, which is otherwise brought by an adjusting cylinder in the open position, in the she usually remains.
  • the pressure medium source is connected via the normally switched through fire protection valve.
  • This circuit arrangement is for controlling a smoke extraction and ventilation system not suitable. It also has a high pressure medium consumption due to the venting of the entire system including the storage container in the case of release.
  • the present invention is therefore an object of the invention to provide a pneumatic circuit for supplying pneumatic cylinders in a flue system and in a flue and ventilation system, which consists of compact components that can be easily installed.
  • the reserve air priority valve via pipes on the one hand to be connected to the reserve air tank to be fed from this, and on the other hand to the pneumatic cylinder, in particular its opening side to be connected.
  • the opening side of the pneumatic cylinder is understood to mean the side to be pressurized with compressed air to move a smoke vent or dome or the like to a smoke exhaust position. Conversely, when a closing side of the pneumatic cylinder is pressed, the smoke outlet flap is closed.
  • the other lines in the circuit arrangement namely the pneumatic control lines between the reserve air priority valve and the release stations or smoke extraction buttons can be formed as hoses, in particular made of plastic, which can be laid easily and flexibly.
  • the smoke extraction buttons as release stations can be made very compact.
  • the smoke extractors are especially designed as manual buttons. But they can also be operated externally in other ways, in particular by an electric or electromagnetic actuation. The latter is particularly suitable for connection with sensors for automatically triggering the smoke extraction position of the smoke extraction system.
  • the remote from the reserve air priority valve smoke extractor button with that only via a single line in communication, which is a pneumatic control line for the reserve air priority valve is.
  • the smoke extractor buttons do not need to be fed from the reserve air tanks or other compressed air supply, but are at the basic position of the reserve air priority valve under the prevailing in the Reserveluftvorrangverttil at a specific point, namely a first pressure chamber, prevailing pressure and control the reserve air priority valve by venting the first chamber or pressure reduction Operation of the smoke extraction button.
  • the reserve air priority valve provided in this manner for pressurizing the pneumatic cylinders with compressed air is a piston valve whose essential features are specified in claim 1.
  • the spool valve can be in fluid communication with an additional, arbitrarily operable two-way valve in addition to the smoke extraction buttons in a smoke extraction and the storage tank of the compressor for adjusting the ventilation of the pneumatic cylinder or the pneumatic cylinder in the Rauchabzugs- and Ventilation system is powered.
  • the compact piston valve as a reserve air priority valve is a displaceable between the basic position and the release position in the housing of the spool valve spool with annular grooves, which faces away from each other opposite Pressure receiving sides adjacent to a first pressure chamber or to a second pressure chamber, wherein the first pressure chamber and the second pressure chamber are in throttled fluid conductive connection with each other.
  • the housing of this spool valve also has a plurality of connection bores, namely a connection hole "reserve air tank”, with which it can be connected to the reserve air tank, a connection hole “RWA on” and a connection hole “RWA”, with it to an opening side or Furthermore, a connection hole “vent”, which forms a vent for the closing side of the pneumatic cylinder or the pneumatic cylinder, further each a connection hole “ventilation on” or connection hole “ventilation to”, with which it to outputs the above-mentioned, arbitrarily operable two-way valve for the ventilation function of the smoke extraction and ventilation system, which is also realized with the SHE flaps or domes, can be connected, and also a connection hole “smoke vent button” for connection to one of the above-mentioned smoke vent ,
  • the connection holes, the first pressure chamber and the second pressure chamber in the housing and the annular grooves in the piston valve are arranged so that in the basic position of the spool, in this at equal pressures in
  • the spool valve is completed by return means of the spool, which are in fluid communication with the second pressure chamber in order to lower the pressure in this for returning the piston valve or to vent the second pressure chamber.
  • the piston valve is then displaced by the pressure prevailing in the first pressure chamber in the direction of its rest position.
  • an internal reset button As a return means of the piston valve can be arranged according to claim 2 in the housing, an internal reset button, with which the second pressure chamber can be vented.
  • connection hole "Reset button” in the housing must be closed externally when not in use. Otherwise, the connection hole “Reset button” is locked in the basic position of the piston valve, so that it is not in this position in communication with the second pressure chamber.
  • connection hole “compressed air supply” can also be arranged in the housing of the reserve air priority valve, which can be connected to the storage container of the compressor, that is fed from the normal compressed air supply.
  • the connection hole “Compressed air supply” in the housing and an annular groove in the spool are designed so that in the basic position of the spool the connection hole “compressed air supply” with the connection hole “reserve air tank” is connected. This ensures that in the initial position of the spool the reserve air tank is fed from the normal compressed air supply to be reliable for the triggering case ready.
  • connection bore "compressed air supply” and the housing on the one hand and the regular compressed air supply, especially the storage tank of the compressor on the other hand is expediently arranged according to claim 5, a check valve, which a backflow of compressed air from the reserve air tank in the event of a malfunction in the compressor and associated pressure vessel there causes a pressure drop prevented.
  • the spool valve which realizes the reserve air priority valve with the spool valve which is displaceable in the housing between the basic position and the release position and adjoins a first pressure chamber and a second pressure chamber at two opposite pressure receiving sides is further designed with the features that the first and the second pressure chamber communicate with each other through a longitudinal bore in the spool and one each at each of the two ends of the longitudinal bore throttles, wherein in the longitudinal bore a transverse bore opens, which is connected to one of the annular grooves in the spool, which the connection bore " Compressed air supply "with the connection hole” reserve air tank "in the basic position of the piston valve can connect.
  • the two pressure chambers are on the throttles, which can be easily designed as throttle holes, in the basic position of the spool both with the connection hole "compressed air supply” to Normal compressed air supply from the reservoir of the compressor as well as with the connection hole “reserve air tank” in conjunction.
  • the equilibrium of high pressures in the two chambers for the basic position of the piston valve reliably sets.
  • the reserve air tank is held by the spool valve in its normal position to the pressure of the regular compressed air supply.
  • the connecting hole "smoke vent button” and the spool on the first pressure chamber are expediently arranged so that the connection hole “smoke vent” is closed by the spool, if this by lowering the pressure in the first pressure chamber and thus adjusting pressure difference between its two pressure receiving sides is moved in the direction of the first pressure chamber.
  • connection hole “smoke exhaust probe” is closed by this in the release position, the connection hole “reserve air tank” connected to the connection hole “RWA open”, the connection hole “RWA closed” connected to the ventilation, the connection hole “ventilation on “and the connection hole” Ventilation closed “locked, the connection hole” compressed air supply “closed and the connection hole” Reset button "connected to the second pressure chamber.
  • the spool valve can be returned to its home position by pressing the internal reset button or the external reset button connected to the "Reset Button” connection hole after the smoke vent button is reset or the "Smoke Dump" connection hole is not vented by a Venting now takes place in the second pressure chamber, whereby the piston valve is automatically moved back into the normal position by the relatively higher pressure in the first pressure chamber.
  • a smoke extraction switch via the pneumatic control line to control the reserve air priority valve or spool valve in the release position. Since this control is done by pressure drop in the pneumatic control line, this can consist of a little expensive, easy to install plastic hose.
  • the spool valve with the above options is designed according to claim 8 as a 9/2 way valve.
  • a smoke extractor for actuating the spool valve, a smoke extractor according to claim 9 is suitable, which comprises an arbitrarily actuable vent valve.
  • the vent valve can be triggered manually in the flue case or electrically controlled with an electromagnetic actuator, optionally also remotely controlled and / or by a sensor.
  • such a smoke vent button in a compact, reliably operating embodiment comprises the features of claim 10, that the vent valve has a valve body with a lockable by a piston valve vent, that the spool is under the force of a return spring that in the smoke vent button against the Is mounted in a power take-off spring in the axial direction displaceable release button with a circumferential groove that in the flue trigger a reset lever plate is pivotally mounted about an axis which is oriented parallel to the axial direction of the release button that the reset lever plate rests on the one hand on the spool and on the other hand on the Trigger button is applied so that it can be pressed against the trigger return spring until the reset lever plate enters the circumferential groove of the release button and opens the vent.
  • the flat, low-assembly design of the smoke vent button is achieved according to claim 12, characterized in that the reset lever plate is arranged parallel to a base side of the housing, on which the release button can be mounted.
  • the reset lever plate can be swung out of the circumferential groove of the release button according to claim 11.
  • a combined smoke extraction and ventilation system is denoted by 31 a two-sided pneumatic cylinder, on each side CA or CZ for opening or closing a smoke exhaust flap, not shown, can be acted upon with compressed air.
  • the pneumatic cylinder 31 may represent a group of such pneumatic cylinders in a smoke and heat exhaust system - RWA system - stand.
  • connection point 32 is indicated, which is fed from a storage container, not shown, of a compressor for normal compressed air supply.
  • compressed air which is taken from this connection point 32 can be acted upon by a pressure regulator 33 and a hand lever valve 34, which is a 5/2 way valve, the pneumatic cylinder 31 with compressed air for regular ventilation on the side CA, whereby the smoke exhaust flap moved into the ventilation position or the pneumatic cylinder 31 can move the SHE flap to the closed position by applying compressed air on the side CZ.
  • the smoke extraction buttons are connected at a central location with a special reserve air priority valve, which is a pressure-operated piston valve 36.
  • a special reserve air priority valve which is a pressure-operated piston valve 36.
  • To the spool valve 36 includes a reset button, which may be designed as an external button or as integrated in the spool valve internal reset button 17th
  • the spool valve 36 is a realization of a reserve air priming valve which generally causes actuation of at least one of the smoke vent buttons 18 in the smoke and heat venting case to pressurize the pneumatic cylinder 31 from the reserve air tank 35 to apply a SHE door or the like in the RWA position open, wherein the pneumatic cylinder is not powered by the 5/2 way valve or hand lever valve with energy directly from the normal compressed air supply to the junction 32.
  • the compressed air supply of the pneumatic cylinder 31 takes place in the flue case via pipes made of steel or copper, which in FIG. 1 are shown by solid lines.
  • pneumatic control lines 37 between the smoke extractor button 18 and the smoke vent buttons and the spool valve 36 can be realized by plastic hoses, which are shown by broken lines.
  • the 5/2-way valve 34 and for feeding the spool valve 36 from the junction 32 via a check valve 8 can at least partially plastic hoses are used.
  • a pressure chamber 1 or 2 is arranged, which adjoins a pressure receiving side 1a and 2a of the piston slide 4.
  • the pressure chambers 1 and 2 are connected by a longitudinal bore 38 in the spool 4 and one throttle bore as a throttle 5 and 6 at both ends of the longitudinal bore 38 fluidly connected to each other. From the longitudinal bore 38 branches off a transverse bore 39 between the throttles 5 and 6, which opens into an annular groove 40 on the outer circumference of the piston slide 4.
  • annular grooves 41, 42, 43 are formed, which can communicate with connection bores 7, 9, 10, 11, 13, 14, 15 in the housing 3 in fluid conductive connection, as in FIG. 2 shown in detail.
  • Another connection hole 12 may communicate directly with the pressure chamber 1 in fluid conducting connection and a connection bore 16 with the second pressure chamber 2, see FIG. 4 , Non-designated annular seals dense portions of the spool, in particular between the annular grooves 40 to 43 and from the pressure chambers 1 and 2 from.
  • an internal reset button 17 is integrated, which includes a manually operable plunger 19, a spring 19 a and a sealing O-ring 20 and a recess 20 a, see FIG. 4 , with the pressure chamber 2 may be in communication when the spool is in the release position.
  • connection hole 1 6 for an external reset button which is therefore referred to as a connection hole "reset button”. It is to be closed when not in use.
  • connection bores are subsequently supplemented with their functions or the components of the pneumatic circuit arrangement to be connected to them.
  • connection bore 9 "ventilation on” is further connected to a corresponding output of the 5/2 way valve 34 and via the annular groove 41 with the connection bore 14 "RWA on”, which communicates with the opening side CA of the pneumatic cylinder 31, see also FIG. 1 .
  • connection bore 10 which is connected to the second outlet of the 5/2 directional control valve 34, is connected to the closing side CZ of the pneumatic cylinder 31 via the annular groove 42 and the connection bore 15 "RWA closed." Opening and closing the flap connected to the pneumatic cylinder can thus be effected for regular ventilation by the manually operated 5/2 way valve via the set in the initial position spool valve 36, which at the same time the pressure energy supply of the pneumatic cylinder 31 from the connection point 32 takes place.
  • connection bore 11 "venting”, which can serve to vent the pneumatic cylinder 31 on the closing side CZ, is closed in this case.
  • the pressure chamber 1 connected to the connection bore 12 "smoke extraction button” is vented by a smoke vent button 18 connected to the connection bore 12, whereby the pressure in the pressure chamber 1 becomes lower than the pressure in the pressure chamber 2 and the piston slide 4 to the left is postponed to his trigger position. It closes the connection hole 12 "Smoke extraction button” so that no further pressure drop and compressed air loss occur. Rather, via the throttles 5 and 6 compressed air flows into the first Pressure chamber 1 from the second pressure chamber 2 after, adjusting a new pressure balance. The pressure in the first pressure chamber 1 can serve to restore the piston slide 4.
  • the reset is, as mentioned above, carried out by pressing the internal reset button 17 or connected to the connection hole 16 "Reset button” external reset button.
  • the spool valve 36 described above as a reserve air priority valve works with a special smoke vent button or more smoke vent buttons as a trigger button together, each of which can be accommodated in a very compact housing.
  • An embodiment of the trigger button is described below with reference to FIGS. 6 to 9 described.
  • Figures 6 and 7 show views of the smoke vent button in the ready position, and the FIGS. 8 and 9 This smoke vent button in tripped position or vent position.
  • the smoke vent button is a venting of the first pressure chamber 1 of the spool valve 36 via the pneumatic control line 37, preferably a plastic tube, see FIG. 1 .
  • the pneumatic control line 37 is connected to a connection 44 of the smoke vent button, which is designated by 18.
  • the smoke extractor has as weseitliches functional element a vent valve which comprises a provided with a vent opening 24 valve body 25 and a valve under pressure of a return spring piston valve 27 which normally closes the vent opening 24 with respect to the terminal 44.
  • the piston slide 27 and the slide return spring 26 are arranged substantially parallel to a base side 30 on which the smoke extraction button 18 comes to rest when mounted on a building or the like.
  • a reset lever plate 23 is pivotally mounted about an axis 28 in the smoke vent button 18.
  • An arm 23 a of the reset lever plate abuts against an end face of the spool valve 27 and holds it in the in the FIGS. 6 and 7 shown operating provision, in which the vent valve is closed with the spool 27 when a relation to the first arm 23 a spatially unwound second arm 23 b of the reset lever plate rests against an outer periphery of a release button 21, as in the FIGS. 6 and 7 shown.
  • the reset lever plate 23 is pivotally mounted about an axis 28 which is oriented perpendicular to the base side 30. Also perpendicular to the base side and thus parallel to the axis 28 of the trigger button 21 is mounted in the smoke vent button 18, which by a trigger return spring 22 in the in FIG. 7 shown operation provision to the right, that is kept pressed outward.
  • the smoke vent button 18 is manually operated by depressing the release button 21, whereby the second arm 23b of the reset lever plate 23 can be engaged in a circumferential groove in the release button 21, see FIGS. 8 and 9 because the first arm 23a of the reset lever plate 23 is moved by the slide return spring 26 to the right or clockwise about the axis 28. Because in this case the spool 27 is pushed to the right by the slide return spring 26, the vent valve opens and releases the vent 24 to which a muffler may be located.
  • the reset approach 23c is moved by a tool down or counterclockwise, against the force of the slide return spring 26.
  • the release button is again by the release return spring 22 to the outside back, and the flue button 18 resumes its operation according to the provision FIGS. 6 and 7 one.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Catching Or Destruction (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Claims (12)

  1. Agencement de circuit pneumatique pour un système d'évacuation des fumées et de ventilation, comportant des vérins pneumatiques (31), de l'air comprimé provenant d'un réservoir de stockage d'un compresseur ou d'un réservoir d'air auxiliaire (35), et des postes de déclenchement, où une soupape de priorité d'air auxiliaire est logée dans un boîtier central (3) et est connectée à des palpeurs d'évacuation des fumées (18) en tant que postes de déclenchement via respectivement une conduite de commande pneumatique unique (37), où le palpeur d'évacuation des fumées (18) est respectivement approprié pour purger la conduite pneumatique de commande (37) en cas d'actionnement, et où la soupape de priorité d'air auxiliaire (36) peut être commutée par la purge depuis une position de base vers une position de déclenchement,
    caractérisé
    en ce que la soupape de priorité d'air auxiliaire (36) est une soupape à robinet à piston actionnée par de l'air comprimé,
    en ce que, pour une alimentation par les vérins pneumatiques (31), la soupape à robinet à piston (36) comporte un robinet à piston (4) avec rainures annulaires (40-43), pouvant être déplacé dans le boîtier (3) entre la position de base et la position de déclenchement, lequel robinet à piston est contigu à deux côtés d'absorption de pression (1a, 2a), orientés dans un sens réciproquement opposé, au niveau d'une première chambre de compression (1) et d'une seconde chambre de compression (2),
    en ce que la première chambre de compression (1) et la seconde chambre de compression (2) se trouvent en relation par conduction de fluide par des papillons (5, 6) et peuvent être alimentées en air comprimé,
    en ce que le boîtier (3) de la soupape à robinet à piston a un perçage de raccordement (13) « réservoir d'air auxiliaire » avec lequel il peut être raccordé au réservoir d'air auxiliaire (35),
    en ce que le boîtier (3) de la soupape à robinet à piston présente un perçage de raccordement (14) « RWA ouvert » et un perçage de raccordement (15) « RWA fermé », avec lequel il peut être raccordé à un côté ouverture (CA) ou à un côté fermeture (CZ) d'un vérin pneumatique respectif (31),
    en ce que le boîtier (3) présente un perçage de raccordement (11) « Purge » qui forme une ouverture de purge pour le côté fermeture (CZ) du vérin pneumatique (31),
    en ce que le boîtier (3) présente respectivement un perçage de raccordement (9) « Aération ouverte » ou un perçage de raccordement (10) « Aération fermée » avec lesquels il peut être raccordé au niveau de sorties d'une soupape bidirectionnelle (34), pouvant être actionnée de façon arbitraire, qui est alimentée depuis le réservoir de stockage du compresseur et sert à un réglage de ventilation du système d'évacuation des fumées et de ventilation,
    en ce que la première chambre de compression (1) peut être reliée via un perçage de raccordement (12) « palpeur d'évacuation des fumées » à un palpeur d'évacuation des fumées (18) qui purge/abaisse la pression en tant que palpeur de déclenchement,
    en ce que les perçages de raccordement (9-15) et les deux chambres de compression (1, 2) sont montés dans le boîtier (3) ainsi que les rainures annulaires (40-43) dans le robinet à piston (4) de façon telle que
    dans la position de base du robinet à piston (4), dans laquelle il est réglé en cas de pressions identiques dans la première chambre de compression (1) et dans la seconde chambre de compression (2),
    le perçage de raccordement (13) « Réservoir d'air auxiliaire » est relié aux deux chambres de compression (1, 2) respectivement par un papillon,
    le perçage de raccordement (12) « Palpeur d'évacuation des fumées » est relié à la première chambre de compression (1),
    le perçage de raccordement (11) « Purge » est fermé et les perçages de raccordement (9) « Aération ouverte » et (10) « Aération fermée » sont reliés aux perçages de raccordement (14) « RWA ouvert » ou (15) « RWA fermé »,
    et que dans une position de déclenchement du robinet à piston (4), dans laquelle, par actionnement du palpeur d'évacuation des fumées (18), la pression dans la première chambre de compression (1) est abaissée,
    le perçage de raccordement (13) « Réservoir d'air auxiliaire » est relié au perçage de raccordement (14) « RWA ouvert »,
    le perçage de raccordement (15) « RWA fermé » est relié au perçage de raccordement (11) « Purge »,
    les perçages de raccordement (9) « Aération ouverte » et (10) « Aération fermée » sont bloqués,
    et des moyens de réarmement du robinet à piston (4) se trouvent en relation par conduction de fluide avec la seconde chambre de compression (2).
  2. Agencement de circuit pneumatique selon la revendication 1, caractérisé en ce qu'en tant que moyens de réarmement du robinet à piston (4) est disposé dans le boîtier (3) un palpeur de réinitialisation interne (17) qui est approprié pour purger la seconde chambre de compression (2).
  3. Agencement de circuit pneumatique selon la revendication 1 ou 2, caractérisé en ce que les moyens de réarmement du robinet à piston (4) comprennent un perçage de raccordement (16) « Palpeur de réinitialisation » dans le boîtier, auquel peut être raccordé un palpeur de réinitialisation externe qui est approprié pour purger la seconde chambre de compression (2).
  4. Agencement de circuit pneumatique selon l'une des revendications 1 à 3, caractérisé en ce que dans le boîtier (3) est disposé un perçage de raccordement (7) « Alimentation en air comprimé » qui peut être relié au réservoir de stockage du compresseur et
    en ce que le perçage de raccordement (7) « Alimentation en air comprimé » dans le boîtier (3) et une rainure annulaire (40) dans le robinet à piston (4) sont conçus de façon telle que dans la position de base du robinet à piston (4), le perçage de raccordement (7) « Alimentation en air comprimé » est relié au perçage de raccordement (13) « Réservoir d'air auxiliaire ».
  5. Agencement de circuit pneumatique selon la revendication 4, caractérisé en ce qu'entre le perçage de raccordement (7) « Alimentation en air comprimé » et le réservoir de stockage du compresseur est disposée une soupape de retenue (8).
  6. Agencement de circuit pneumatique selon l'une des revendications 1 à 5, caractérisé
    en ce que la première et la seconde chambres de compression (1, 2) se trouvent en relation l'une avec l'autre par un perçage longitudinal (38) dans le robinet à piston (4) et respectivement un papillon (5, 6) disposé au niveau de chacune des deux extrémités du perçage longitudinal, et
    en ce que dans le perçage longitudinal (38) débouche un perçage transversal (39) qui est relié à l'une (40) des rainures annulaires dans le robinet à piston (4), qui est approprié pour relier le perçage de raccordement (7) « Alimentation en air comprimé » au perçage de raccordement (13) « Réservoir d'air auxiliaire » dans la position de base du robinet à piston (4).
  7. Agencement de circuit pneumatique selon l'une des revendications 1 à 6, caractérisé
    en ce que le perçage de raccordement (12) « palpeur d'évacuation des fumées » et le robinet à piston (4) sont montés au niveau de la première chambre de compression (1) de façon telle que le perçage de raccordement « palpeur d'évacuation des fumées » est fermé par le robinet à piston lorsque, par actionnement du palpeur d'évacuation des fumées (18) et par la réduction de pression qui s'ensuit dans la première chambre de compression (1), le robinet à piston est poussé dans la position de déclenchement.
  8. Agencement de circuit pneumatique selon l'une des revendications 1 à 7, caractérisé par une soupape bidirectionnelle 9/2 en tant que soupape à robinet à piston (36).
  9. Agencement de circuit pneumatique selon l'une des revendications précédentes, caractérisé en ce que le palpeur d'évacuation des fumées (18) comporte une soupape de ventilation pouvant être actionnée depuis l'extérieur.
  10. Agencement de circuit pneumatique selon la revendication 9,
    caractérisé
    en ce que la soupape de ventilation présente un corps de soupape (25) avec une purge (24) pouvant être bloquée par un robinet à piston (27),
    en ce que le robinet à piston (27) est soumis à la force d'un ressort de rappel de robinet (26),
    en ce que dans le palpeur d'évacuation des fumées (18) est logé un bouton de déclenchement (21), pouvant être poussé dans la direction axiale contre la force d'un ressort de rappel de déclenchement (22), qui présente une rainure circonférentielle (45),
    en ce que dans le palpeur d'évacuation des fumées (18) est logée une tôle de levier de réinitialisation (23) qui peut pivoter autour d'un axe (28) qui est orienté parallèlement à la direction axiale du bouton de déclenchement (21), en ce que la tôle de levier de réinitialisation (23) d'une part repose contre le robinet à piston (27) et d'autre contre le bouton de déclenchement (21) de façon à ce que le bouton de déclenchement (21) puisse être enfoncé en s'opposant au ressort de rappel de déclenchement (22) jusqu'à ce que la tôle de levier de réinitialisation (23) s'engrène dans la rainure circonférentielle (45) du bouton de déclenchement (21) et ouvre la purge (24).
  11. Agencement de circuit pneumatique selon la revendication 10, caractérisé en ce que la tôle de levier de réinitialisation (23), pour réarmer le palpeur d'évacuation des fumées (18), peut pivoter hors de la rainure circonférentielle (45).
  12. Agencement de circuit pneumatique selon la revendication 10 ou 11, caractérisé en ce que la tôle de levier de réinitialisation (23) est disposée parallèlement à un côté de base (30) du boîtier.
EP06011193A 2005-06-06 2006-05-31 Circuit pneumatique pour un système d'extraction de fumée et de ventilation Not-in-force EP1731770B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005026178 2005-06-06

Publications (3)

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EP1731770A2 EP1731770A2 (fr) 2006-12-13
EP1731770A3 EP1731770A3 (fr) 2007-11-21
EP1731770B1 true EP1731770B1 (fr) 2010-05-05

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Application Number Title Priority Date Filing Date
EP06011193A Not-in-force EP1731770B1 (fr) 2005-06-06 2006-05-31 Circuit pneumatique pour un système d'extraction de fumée et de ventilation

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EP (1) EP1731770B1 (fr)
AT (1) ATE467055T1 (fr)
DE (1) DE502006006885D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524492B1 (de) * 2020-11-18 2022-07-15 Grasl Pneumatic-Mechanik Gmbh System zur belüftung und/oder zum rauch -und wärmeabzug

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3400142A1 (de) * 1984-01-04 1985-07-11 Fa. J. Eberspächer, 7300 Esslingen Sicherheitsausloeseeinrichtung fuer rauch- und waermeabzugsgeraete
DE4342117B4 (de) 1992-12-24 2006-05-18 Grützmann Feinmechanic GmbH Fluidbetriebene Steueranordnung für die Betätigung einer Schutztür, insbesondere Feuerschutztür auf Schiffen
DE19627738C2 (de) * 1996-07-10 1998-12-24 Colt Int Holdings Vorrichtung zur Betätigung von Lüftungsklappen oder dergl.
DE20009253U1 (de) * 2000-05-23 2000-08-31 Bürkert GmbH & Co. KG, 01900 Großröhrsdorf Elektropneumatisch gesteuerte Rauchabzugs- und/oder Entlüftungsanlage

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ATE467055T1 (de) 2010-05-15
DE502006006885D1 (de) 2010-06-17
EP1731770A2 (fr) 2006-12-13
EP1731770A3 (fr) 2007-11-21

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