FR2617271A1 - Device for setting a mechanically controlled ventilation circuit to atmosphere - Google Patents

Device for setting a mechanically controlled ventilation circuit to atmosphere Download PDF

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Publication number
FR2617271A1
FR2617271A1 FR8709006A FR8709006A FR2617271A1 FR 2617271 A1 FR2617271 A1 FR 2617271A1 FR 8709006 A FR8709006 A FR 8709006A FR 8709006 A FR8709006 A FR 8709006A FR 2617271 A1 FR2617271 A1 FR 2617271A1
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FR
France
Prior art keywords
duct
flap
cover
axis
opening
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.)
Pending
Application number
FR8709006A
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French (fr)
Inventor
Andre Heydt
Michel Roussel
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.)
HCI SA
Original Assignee
HCI SA
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 HCI SA filed Critical HCI SA
Priority to FR8709006A priority Critical patent/FR2617271A1/en
Publication of FR2617271A1 publication Critical patent/FR2617271A1/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24CDOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00Details
    • F24C15/20Removing cooking fumes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L11/00Arrangements of valves or dampers after the fire
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23JREMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00Chimneys or flues
    • F23J2213/70Safety arrangements

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

Abstract

The present invention relates to an automatic device for setting a mechanically controlled ventilation circuit to atmosphere, characterised in that it is essentially constituted by a duct section 1 inserted into the circuit and having a longitudinal opening 2, by a damper (flap) 3 mounted so as to pivot in the duct 1 by means of a spindle 4, by a cover (mask) (5) for closing the longitudinal opening 2 of the duct 1 and mounted so as to be solidly attached to the spindle 4 of the damper (flap) 3, and by a counterweight 6 mounted on the damper (flap) 3, the cover (mask) 5 and the damper (flap) 3 being arranged on the spindle 4 in such a way that, in the closed position of the opening 2 of the duct 1 by the cover (mask) 5, the damper (flap) 3 extends parallel, or substantially parallel, to the longitudinal axis of the duct 1.

Description

La présente invention concerne le domaine de la ventilation de locaux d'habitation et/ou tertiaires, notamment par'ventilation mécanique contrôlée, et a pour objet un dispositif automatique de mise à l'atmosphère d'un réseau de ventilation mécanique contrôlée. The present invention relates to the field of ventilation of residential and / or tertiary premises, in particular by controlled mechanical ventilation, and relates to an automatic device for venting a network of controlled mechanical ventilation.

Actuellement, le règlement relatif à la protection contre l'incendie des immeubles d'habitation ainsi que des immeubles recevant du public, prévoit certaines dispositions afin d'éviter la transmission des fumées par les réseaux de ventilation mécanique contrôlée. Généralement, il est fait appel, à cet effet, à des dispositifs de mise à l'air libre desdits réseaux. Currently, the fire protection regulations for apartment buildings and buildings open to the public include certain provisions to prevent the transmission of smoke by controlled mechanical ventilation networks. Generally, use is made, for this purpose, of devices for venting said networks.

De tels dispositifs connus se présentent, par exemple, sous forme de moyens de mise à l'air libre asservis et complexes, dans lesquels interviennent des capteurs et des clapets motorisés commandés à distance par un automatisme ou autre, qui réalise à nouveau la fermeture automatique desdits clapets. I1 existe également des moyens de mise à l'air libre faisant intervenir des éléments à fonctionnement unique, tels que des fusibles, ou analogues, et qui doivent être réarmés, après chaque usage, par intervention manuelle. Such known devices are, for example, in the form of controlled and complex open air means, in which intervene sensors and motorized valves controlled remotely by an automation or other, which again performs automatic closing. of said valves. There are also means of venting involving elements with a single function, such as fuses, or the like, and which must be reset, after each use, by manual intervention.

Ces dispositifs de mise à l'air libre connus présentent cependant l'inconvénient d'être d'un prix de revient relativement élevé, et de nécessiter des interventions fréquentes. These known venting devices, however, have the disadvantage of being of a relatively high cost price, and of requiring frequent interventions.

Par ailleurs, dans le cas de raccordement de gaines d'évacuation d'appareils à gaz, notamment de chauffe-bains ou chaudières, à des conduits de ventilation mécanique contrôlée, il-se pose un problème de sécurité qui ne peut être résolu avec l'équipement actuel des installations de ventilation mécanique, avec le risque de création d'une surpression dans la partie supérieure du réseau en cas d'arrêt du ventilateur. Furthermore, in the case of the connection of evacuation ducts of gas appliances, in particular of bath heaters or boilers, to controlled mechanical ventilation ducts, there is a security problem which cannot be resolved with the current equipment for mechanical ventilation installations, with the risk of creating an overpressure in the upper part of the network in the event of the fan stopping.

La présente invention a pour but de'pallier ces inconvénients. The object of the present invention is to overcome these drawbacks.

Elle a, en effet, pour objet un dispositif automatique de mise à l'atmosphère d'un réseau de ventilation mécanique contrôlée, caractérisé en ce qu'il est essentiellement constitué par un tronçon'de conduit inséré dans'le réseau et présentant une ouverture longitudinale, par un volet monté de manière pivotante dans le conduit au moyen d'un axe, par un cache de fermeture de l'ouverture longitudinale du conduit monté de manière solidaire sur l'axe du volet, et par un contre-poids monté sur le volet, le cache et le volet étant disposés sur l'axe de telle manière qu'en position de fermeture de l'ouverture du conduit par le cache, le volet s'étende parallèlement, ou sensiblement parallèlement à l'axe longitudinal du conduit. Its purpose is in fact an automatic device for venting a network of controlled mechanical ventilation, characterized in that it is essentially constituted by a section of duct inserted into the network and having an opening longitudinal, by a flap pivotally mounted in the duct by means of an axis, by a cover for closing the longitudinal opening of the duct mounted integrally on the axis of the flap, and by a counterweight mounted on the shutter, the cover and the shutter being arranged on the axis so that in the closed position of the opening of the duct by the cover, the shutter extends parallel, or substantially parallel to the longitudinal axis of the duct .

L'invention sera mieux comprise grâce à la description ci-après, qui se rapporte à un mode de réalisation préféré, donné à titre d'exemple non limitatif, et expliqué avec référence au dessin schématique annexé, dans lequel
la figure 1 est une vue en élévation latérale et en coupe d'un dispositif conforme à l'invention ;
la figure 2 est une vue en élévation frontale et en coupe du dispositif suivant la figure 1, et
les figures 3 et 4 sont des vues analogues aux figures 1 et 2 représentant le dispositif en positionsde fermeture du conduit.
The invention will be better understood from the description below, which relates to a preferred embodiment, given by way of nonlimiting example, and explained with reference to the appended schematic drawing, in which
Figure 1 is a side elevational view in section of a device according to the invention;
FIG. 2 is a front elevation view in section of the device according to FIG. 1, and
Figures 3 and 4 are views similar to Figures 1 and 2 showing the device in the closed position of the conduit.

Conformément à l'invention, et comme le montrent plus particulièrement, à titre exemple, les figures 1 à 4 des dessins annexés, le dispositif automatique de mise à l'atmosphère d'un réseau de ventilation mécanique contrôlée est essentiellement constitué par un tronçon de conduit 1 inséré dans le réseau de ventilation et muni d'une ouverture longitudinale 2. Dans ce tronçon de conduit 1 est monté de manière pivotante, au moyen d'un axe 4, un volet 3, qui est relié audit axe 4, et, par l'intermédiaire de ce dernier, à un cache 5 destiné à recouvrir l'ouverture 2 du conduit 1. A son extrémité opposée à l'axe 4, le'volet 3 est muni, en outre, d'un contre-poids 6. En position de fermeture de l'ouverture 2 du tronçon de conduit 1, le volet 3 est aligné parallèlement, ou sensiblement parallèlement, à l'axe longitudinal du conduit 1. According to the invention, and as shown more particularly, for example, Figures 1 to 4 of the accompanying drawings, the automatic device for venting a network of controlled mechanical ventilation is essentially constituted by a section of duct 1 inserted in the ventilation network and provided with a longitudinal opening 2. In this section of duct 1 is pivotally mounted, by means of an axis 4, a flap 3, which is connected to said axis 4, and, through the latter, to a cover 5 intended to cover the opening 2 of the duct 1. At its end opposite to the axis 4, the flap 3 is further provided with a counterweight 6 In the closed position of the opening 2 of the duct section 1, the flap 3 is aligned parallel, or substantially parallel, to the longitudinal axis of the duct 1.

L'ouverture longitudinale 2 présente avantageusement une section qui est au moins égale à celle du conduit 1, et l'étanchéité périphérique entre cette ouverture 2 et le cache 5, en position de fermeture de ce dernier, est assurée au moyen d'un joint souple 7. The longitudinal opening 2 advantageously has a section which is at least equal to that of the duct 1, and the peripheral sealing between this opening 2 and the cover 5, in the closed position of the latter, is ensured by means of a seal. flexible 7.

L'axe 4 du volet 3 et du cache 5 est excentré par rapport à l'axe du conduit 1 de telle manière que le volet 3 et le cache 5 forment un pendule articulé autour dudit axe 4. Le contre-poids 6 monté sur le volet -3 à l'extrémité opposée de l'axe 4 est destiné à réaliser un pivotement automatique du pendule décrit ci-dessus autour de l'axe 4 en position d'ouverture du cache 5.The axis 4 of the flap 3 and of the cover 5 is eccentric with respect to the axis of the duct 1 so that the flap 3 and the cover 5 form a pendulum articulated around said axis 4. The counterweight 6 mounted on the flap -3 at the opposite end of axis 4 is intended to carry out an automatic pivoting of the pendulum described above around axis 4 in the open position of cover 5.

Le dispositif conforme à l'invention fonctionne de la manière suivante
Lorsque le ventilateur, qui est situé en aval du dispositif de mise à l'atmosphère, est arrêté, il n'existe plus de dépression dans le réseau, et le pendule constitué par le volet 3, l'axe 4 et le cache 5 est maintenu en position verticale sous l'effet du contrepoids 6 solidaire dudit volet 3, et le réseau communique directement avec l'extérieur. Lors de- la mise en marche du ventilateur, l'air aspiré suivant la flèche F (figures 1 et 3), et qui provient essentiellement de l'ou- verture 2 du conduit 1, provoque un basculement du pendule, de sorte que le cache 5 vient se plaquer sur l'ouverture 2 et est maintenu en place par la dépression créée par le ventilateur.Simultanément, la section utile du conduit 1 est libérée, le volet 3 se plaçant sensiblement parallèlement à son axe longitudinal, de telle manière que l'installation de ventilation peut fonctionner normalement. En cas d'arrêt commandé ou accidentel du ventilateur, la dépression au niveau de l'ouverture 2 disparaît et le pendule se remet automatiquement dans sa position verticale, assurant ainsi à nouveau la mise à l'atmosphère du réseau
Conformément à une autre caractéristique de l'invention, le dispositif de mise à l'atmosphère est avantageusement pourvu d'un capotage de protection, non représenté au dessin annexé. Un tel capotage permet notamment d'éviter une altération du fonctionnement de l'ensemble de pendule, notamment du fait d'une prise au vent du cache 5.
The device according to the invention operates in the following manner
When the fan, which is located downstream of the venting device, is stopped, there is no more vacuum in the network, and the pendulum formed by the flap 3, the axis 4 and the cover 5 is maintained in a vertical position under the effect of the counterweight 6 integral with said flap 3, and the network communicates directly with the outside. When the fan is started up, the air sucked in according to arrow F (FIGS. 1 and 3), and which essentially comes from the opening 2 of the duct 1, causes the pendulum to tilt, so that the cover 5 is pressed against the opening 2 and is held in place by the vacuum created by the fan. At the same time, the useful section of the duct 1 is released, the shutter 3 being placed substantially parallel to its longitudinal axis, so that the ventilation system can operate normally. In the event of a controlled or accidental shutdown of the fan, the vacuum at opening 2 disappears and the pendulum automatically returns to its vertical position, thus ensuring that the network is vented again
According to another characteristic of the invention, the venting device is advantageously provided with a protective cover, not shown in the accompanying drawing. Such a rollover makes it possible in particular to avoid an alteration in the operation of the pendulum assembly, in particular due to the windwardness of the cover 5.

Grâce à l'invention, il est possible de réaliser un dispositif automatique de mise à l'atmosphère d'un réseau de ventilation mécanique contrôlée, de constitution et de fonctionnement particulièrement simples et fiables, et d'un prix de revient très faible. Thanks to the invention, it is possible to produce an automatic device for venting a controlled mechanical ventilation network, of particularly simple and reliable constitution and operation, and at a very low cost price.

Bien entendu, l'invention n'est pas limitée au mode de réalisation décrit et représenté au dessin annexé. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments, ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.  Of course, the invention is not limited to the embodiment described and shown in the accompanying drawing. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (4)

- R -E V E N D I C A T I O N S  - R -E V E N D I C A T I O N S 1. Dispositif automatique de mise à l'atmosphère d'un réseau de ventilation mécanique contrôlée, caractérisé en ce qu'il est essentiellement constitué par un tronçon de conduit ( 1) inséré dans le réseau et présentant une ouverture longitudinale (2), par un volet (3) monté de manière pivotante dans le conduit (1) au moyen d'un axe (4), par un cache (5) de fermeture de l'ouverture longitudinale (2) du conduit (l) monté de manière solidaire sur l'axe (4) du volet (3), et par un contre-poids (6) monté sur le volet-(3), le cache (5) et le volet (3) étant disposés sur l'axe (4) de telle manière qu'en position de fermeture de l'ouverture (2) du conduit (l).par le cache (5), le volet (3) s'étende parallèlement, ou sensiblement parallèlement à l'axe longitudinal du conduit (1). 1. Automatic device for venting a controlled mechanical ventilation network, characterized in that it essentially consists of a section of duct (1) inserted into the network and having a longitudinal opening (2), by a flap (3) pivotally mounted in the duct (1) by means of a pin (4), by a cover (5) for closing the longitudinal opening (2) of the duct (l) mounted integrally on the axis (4) of the flap (3), and by a counterweight (6) mounted on the flap- (3), the cover (5) and the flap (3) being arranged on the axis (4 ) in such a way that in the closed position of the opening (2) of the duct (l) .by the cover (5), the flap (3) extends parallel, or substantially parallel to the longitudinal axis of the duct (1). 2. Dispositif suivant la revendication 1, caractérisé en ce que l'ouverture longitudinale (2) présente avantageusement une section qui est au moins égale à celle du conduit (1), et l'étanchéité périphérique entre cette ouverture (2) et le cache (5), en position de fermeture de ce dernier, est assurée au moyen d'un joint souple (7). 2. Device according to claim 1, characterized in that the longitudinal opening (2) advantageously has a section which is at least equal to that of the duct (1), and the peripheral seal between this opening (2) and the cover (5), in the closed position of the latter, is ensured by means of a flexible seal (7). 3. Dispositif suivant l'une quelconque des re-' vendications 1 et 2, caractérisé en ce que l'axe (4) du volet (3) et du cache (5) est excentré par rapport à l'axe du conduit (1) de telle manière que le volet (3) et le cache (5) forment un pendule articulé autour dudit axe (4). 3. Device according to any one of claims 1 and 2, characterized in that the axis (4) of the flap (3) and of the cover (5) is eccentric relative to the axis of the duct (1 ) in such a way that the flap (3) and the cover (5) form a pendulum articulated around said axis (4). 4. Dispositif suivant l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il est avantageusement pourvu d'un capotage de protection.  4. Device according to any one of claims 1 to 3, characterized in that it is advantageously provided with a protective cover.
FR8709006A 1987-06-24 1987-06-24 Device for setting a mechanically controlled ventilation circuit to atmosphere Pending FR2617271A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8709006A FR2617271A1 (en) 1987-06-24 1987-06-24 Device for setting a mechanically controlled ventilation circuit to atmosphere

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Application Number Priority Date Filing Date Title
FR8709006A FR2617271A1 (en) 1987-06-24 1987-06-24 Device for setting a mechanically controlled ventilation circuit to atmosphere

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667964A1 (en) * 1990-10-16 1992-04-17 Tech Ind Fonderie Centre Method for giving an alarm against risks of intoxication in premises in which at least one thermal equipment is found connected to a fume duct and device for implementing it
FR2698434A1 (en) * 1992-11-24 1994-05-27 Delahaye Rene Duct ventilation appts operating should mechanical extraction fail - has slatted shutter held open by spring pressure and closed by electromagnet plunger operated relative to duct air pressure
FR2785977A1 (en) * 1998-11-16 2000-05-19 Michel Bodin Shunt duct for heater chimney has ventilation pipes with casing having flow control shutters operated dependent on blower pressure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186354A (en) * 1938-02-03 1940-01-09 Everett Rosenberg H Draft control means
US2251822A (en) * 1939-06-05 1941-08-05 Master Electric Co Stack damper regulator
NL7502904A (en) * 1975-03-11 1976-09-14 Martinus Laurentius Josef Duin Exhauster hood connection pipe - has port open to atmosphere closed by shutter under fan air pressure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186354A (en) * 1938-02-03 1940-01-09 Everett Rosenberg H Draft control means
US2251822A (en) * 1939-06-05 1941-08-05 Master Electric Co Stack damper regulator
NL7502904A (en) * 1975-03-11 1976-09-14 Martinus Laurentius Josef Duin Exhauster hood connection pipe - has port open to atmosphere closed by shutter under fan air pressure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2667964A1 (en) * 1990-10-16 1992-04-17 Tech Ind Fonderie Centre Method for giving an alarm against risks of intoxication in premises in which at least one thermal equipment is found connected to a fume duct and device for implementing it
FR2698434A1 (en) * 1992-11-24 1994-05-27 Delahaye Rene Duct ventilation appts operating should mechanical extraction fail - has slatted shutter held open by spring pressure and closed by electromagnet plunger operated relative to duct air pressure
FR2785977A1 (en) * 1998-11-16 2000-05-19 Michel Bodin Shunt duct for heater chimney has ventilation pipes with casing having flow control shutters operated dependent on blower pressure

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