EP3364120B1 - Ventilation cabinet for a smoke-removal installation comprising an adjustment - Google Patents

Ventilation cabinet for a smoke-removal installation comprising an adjustment Download PDF

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Publication number
EP3364120B1
EP3364120B1 EP18157675.2A EP18157675A EP3364120B1 EP 3364120 B1 EP3364120 B1 EP 3364120B1 EP 18157675 A EP18157675 A EP 18157675A EP 3364120 B1 EP3364120 B1 EP 3364120B1
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EP
European Patent Office
Prior art keywords
setting
flap
ventilation box
ventilation
air
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EP18157675.2A
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German (de)
French (fr)
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EP3364120A1 (en
Inventor
Laurent Loos
Grégory CLOUZOT
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Aldes Aeraulique SA
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Aldes Aeraulique SA
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Publication of EP3364120A1 publication Critical patent/EP3364120A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • 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
    • F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F24F2013/205—Mounting a ventilator fan therein

Definitions

  • the present invention relates to a ventilation box for a smoke extraction installation of a building, a method of adjusting the box, and a smoke extraction installation comprising such a box.
  • Receiving buildings in particular residential buildings, commercial premises or public premises such as schools, offices, health centers or retirement homes, must have a smoke evacuation system that evacuates fumes in case of fire.
  • the smoke extraction of buildings is important for various reasons, it limits the spread of the fire, facilitates the access of the building to the fire brigade, and allows an easier and faster evacuation of the people inside as soon as the detection of the presence of the fire is detected. fumes. It should be noted that in the event of a fire in a building, fumes are responsible for 80% of deaths.
  • a type of ventilation box known for the air circulation of smoke extraction installations presented in particular by the document FR-A1-3035457 , comprises a compartment containing an electric motor, and another compartment containing a turbine driven by this motor.
  • the engine has a cooling air flow separate from the ventilation airflow.
  • the document KR 2009 0099639 A shows a ventilation box for a smoke extraction installation of a building, comprising an external air collection compartment having an air inlet, and a compartment containing a turbine and a motorization driving this turbine, where the inlet of the collection compartment comprises a movable flap for adjusting its air passage section.
  • the smoke extraction systems of buildings must have a properly sized flow rate, which meets standards setting the design calculation rules, implemented by consulting firms carrying out the design of these systems.
  • the sizing calculation rules provide for an increase in the flow rate calculated for the fans of approximately 20% compared to the normally sufficient flow in order to provide for a possibility of losses, in particular from leaks from the smoke extraction dampers or ducts.
  • Deviations from the smoke extraction rate standards can cause several problems. If the debit is not large enough, the security commission may refuse approval for the opening of a building intended for the public because there is a risk in case of disaster.
  • the adjustment of the actual flow rate may then require modifications to the ventilation circuit, especially to the ventilation box, which require time as well as suitable equipment.
  • the present invention is intended to avoid these disadvantages of the prior art.
  • This ventilation box is that after the complete installation of the smoke extraction system in the building, one can proceed to tests by measuring the real flow of this system which can work in aspiration of fumes or insufflation in the building of fresh air taken outside, then simply and quickly, without special tools or exchange of equipment, moving the movable adjustment flap is continuously adjusted the passage section of the entrance of air from the air collection compartment to precisely obtain the requested flow rate.
  • the ventilation box according to the invention may furthermore comprise one or more of the following characteristics, which may be combined with each other.
  • the adjustment flap is mounted on a pivot.
  • the pivot is a simple and economical way to obtain a continuous movement of the shutter.
  • the adjustment flap may be formed by a sheet having a bore receiving the pivot.
  • the ventilation box comprises locking means of the adjustment flap in any position. It is thus possible to block the flap after adjustment to avoid any unexpected movement during the lifetime of the smoke extraction system, in order to maintain this setting.
  • the adjustment flap comprises a part accessible from the outside of the box for its adjustment, said part being adapted to allow said adjustment after the introduction of ventilation ducts on its air inlet.
  • the subject of the invention is also a method of adjusting a ventilation box comprising any one of the preceding characteristics, comprising a step of moving the adjustment flap in parallel with airflow adjustment measures of the ventilation box. during the operation of the smoke extraction system installed in a building.
  • the invention furthermore relates to a smoke extraction installation comprising a ventilation box comprising any of the preceding features.
  • the figure 1 has a ventilation box 2 having a first compartment 4 for collecting the extracted air, comprising an air inlet 6 receiving air that can come from several ducts connected to different parts of the building.
  • the ventilation box 2 then comprises a second compartment 8 comprising a centrifugal turbine 10 having a horizontal axis.
  • the centrifugal turbine 10 draws air at its center coming from the first compartment 4, to eject it radially outwards through an air outlet 12.
  • the ventilation box 2 finally comprises a third compartment 14 containing inside an electric motor 16, whose shaft is connected directly to the centrifugal turbine 10 to drive it.
  • the electric motor 16 separated in the third compartment 14, can not receive the smoke in case of fire which ensures its protection.
  • This ventilation box 2 having a passage section of the fixed air inlet 6, and an electric motor 16 rotating at a predetermined constant speed, does not allow adjustment of the air flow quickly and simply in case tests on the complete installation would give too much flow.
  • the figure 2 has a similar ventilation box 2 having on the air inlet 6 a movable adjusting flap 20 fixed to this box by a pivot 22, having a rectangular shape disposed horizontally.
  • the adjustment flap 20 is positioned above the air inlet in its most open position, leaving the largest passage section at the air inlet 6.
  • the adjustment flap 20 is formed economically by a sheet, comprising a bore receiving the pivot 22 which can be achieved by a screw or a rivet.
  • the figure 3 presents an action of an operator who moves manually according to the arrow F the adjustment flap 20, by turning it around its pivot 22.
  • the adjustment flap 20 is shown in this figure after a 90 ° clockwise rotation in the vertically elongated low position, which is its most closed position by plugging about half of the inlet passage section of the inlet. air 6.
  • the adjustment flap 20 can take all the intermediate positions between the open position and the closed position, by a progressive rotation of this flap around its pivot 22 in order to finely adjust the passage section of the air inlet 6, as well as the air flow when all other operating conditions of the smoke extraction system are stable.
  • the adjustment flap 20 may comprise a locking system in any position, such as a clamping screw, allowing the operator after having found the optimal position to block this flap to prevent it from being subsequently moved under the effect of vibrations in particular, or by an operator doing for example control or maintenance operations on the ventilation box 2.
  • the adjustment flap 20 comprises a part accessible from the outside of the casing 2 after putting in place the ventilation ducts on the air inlet 6. In this way an operator can intervene on the adjustment flap 22 of a smoke extraction system completely installed in the building, so as to make a progressive adjustment during the operation of this installation, together with flow measurements.

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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)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Air-Flow Control Members (AREA)

Description

La présente invention concerne un caisson de ventilation pour une installation de désenfumage d'un bâtiment, un procédé de réglage de ce caisson, ainsi qu'une installation de désenfumage comportant un tel caisson.The present invention relates to a ventilation box for a smoke extraction installation of a building, a method of adjusting the box, and a smoke extraction installation comprising such a box.

Les bâtiments recevant des personnes, en particulier les bâtiments à usage d'habitation, les locaux tertiaires ou les locaux recevant du public comme les écoles, les bureaux, les centres de soins ou les maisons de retraite, doivent comporter une installation de désenfumage évacuant les fumées en cas d'incendie.Receiving buildings, in particular residential buildings, commercial premises or public premises such as schools, offices, health centers or retirement homes, must have a smoke evacuation system that evacuates fumes in case of fire.

Le désenfumage des bâtiments est important pour différentes raisons, il limite la propagation de l'incendie, facilite l'accès du bâtiment aux pompiers, et permet une évacuation plus facile et plus rapide des personnes à l'intérieur dès la détection de la présence de fumées. On notera qu'en cas d'incendie dans un bâtiment, les fumées sont responsables de 80% des décès.The smoke extraction of buildings is important for various reasons, it limits the spread of the fire, facilitates the access of the building to the fire brigade, and allows an easier and faster evacuation of the people inside as soon as the detection of the presence of the fire is detected. fumes. It should be noted that in the event of a fire in a building, fumes are responsible for 80% of deaths.

Un type de caisson de ventilation connu pour la circulation d'air d'installations de désenfumage, présenté notamment par le document FR-A1-3035457 , comporte un compartiment contenant un moteur électrique, et un autre compartiment contenant une turbine entraînée par ce moteur. Le moteur dispose d'un flux d'air de refroidissement distinct du flux d'air de ventilation.A type of ventilation box known for the air circulation of smoke extraction installations, presented in particular by the document FR-A1-3035457 , comprises a compartment containing an electric motor, and another compartment containing a turbine driven by this motor. The engine has a cooling air flow separate from the ventilation airflow.

Le document KR 2009 0099639 A montre un caisson de ventilation pour une installation de désenfumage d'un bâtiment, comportant un compartiment de collecte d'air extérieur présentant une entrée d'air, et un compartiment contenant une turbine ainsi qu'une motorisation entraînant cette turbine, où l'entrée d'air du compartiment de collecte comporte un volet mobile de réglage de sa section de passage d'air.The document KR 2009 0099639 A shows a ventilation box for a smoke extraction installation of a building, comprising an external air collection compartment having an air inlet, and a compartment containing a turbine and a motorization driving this turbine, where the inlet of the collection compartment comprises a movable flap for adjusting its air passage section.

D'une manière générale les installations de désenfumage des bâtiments doivent présenter un débit correctement dimensionné, qui répond à des normes établissant les règles de calcul du dimensionnement, mises en œuvre par les bureaux d'études réalisant la conception de ces systèmes.In general, the smoke extraction systems of buildings must have a properly sized flow rate, which meets standards setting the design calculation rules, implemented by consulting firms carrying out the design of these systems.

Cependant après la conception des installations de désenfumage conformément aux règles de calcul, leurs réalisations peuvent présenter certains écarts dus à des problèmes non prévus à l'origine, comme des obstacles présents dans le bâtiment sur les parcours des conduits de fumée, ou des problèmes d'étanchéité des différents composants de ces systèmes, qui donnent un décalage entre le débit d'air théorique prévu et le débit réel mesuré.However, after the design of the smoke extraction installations in accordance with the calculation rules, their achievements may present some deviations due to problems not originally foreseen, such as obstacles in the building on the flue paths, or problems with the chimney system. sealing of the various components of these systems, which give an offset between the predicted theoretical air flow rate and the actual measured flow rate.

Pour prendre en compte différents imprévus, les règles de calcul de dimensionnement prévoient une augmentation du débit calculé pour les ventilateurs d'environ 20% par rapport au débit normalement suffisant afin de prévoir une possibilité de pertes venant notamment de fuites des volets de désenfumage ou des conduits.In order to take into account various unforeseen events, the sizing calculation rules provide for an increase in the flow rate calculated for the fans of approximately 20% compared to the normally sufficient flow in order to provide for a possibility of losses, in particular from leaks from the smoke extraction dampers or ducts.

Toutefois des normes récentes de conception des volets et des conduits ayant permis de limiter les débits de fuites, on obtient souvent un débit trop important par rapport à la norme lors des mesures faites pour la réception des installations de désenfumage terminées.However, recent flap and duct design standards have made it possible to limit the flow of leaks. important to the standard when measuring the reception of completed smoke extraction systems.

Les écarts par rapport aux normes de débit de désenfumage peuvent poser plusieurs problèmes. Si le débit n'est pas assez important, la commission de sécurité peut refuser l'agrément pour l'ouverture d'un bâtiment destiné au public car il existe un risque en cas de sinistre.Deviations from the smoke extraction rate standards can cause several problems. If the debit is not large enough, the security commission may refuse approval for the opening of a building intended for the public because there is a risk in case of disaster.

Si le débit est trop élevé, il peut générer une dépression dans la partie désenfumée dépassant 80Pa, qui empêche l'ouverture des portes par la pression trop forte s'exerçant dessus. Ce problème concerne notamment les centres de soins comme les hôpitaux, ou les locaux comportant des parties pour le couchage.If the flow is too high, it can generate a vacuum in the smoke-free portion exceeding 80Pa, which prevents the opening of the doors by too much pressure exerted on it. This problem concerns especially health centers such as hospitals, or premises with parts for sleeping.

L'ajustement du débit réel peut nécessiter alors des modifications sur le circuit de ventilation, notamment sur le caisson de ventilation, qui demandent du temps ainsi qu'un matériel adapté.The adjustment of the actual flow rate may then require modifications to the ventilation circuit, especially to the ventilation box, which require time as well as suitable equipment.

La présente invention a notamment pour but d'éviter ces inconvénients de la technique antérieure.The present invention is intended to avoid these disadvantages of the prior art.

Elle propose à cet effet un caisson de ventilation selon la revendication 1.It proposes for this purpose a ventilation box according to claim 1.

Un avantage de ce caisson de ventilation est qu'après la mise en place complète de l'installation de désenfumage dans le bâtiment, on peut procéder à des essais en mesurant le débit réel de ce système qui peut travailler en aspiration de fumées ou en insufflation dans le bâtiment d'air frais prélevé à l'extérieur, puis de manière simple et rapide, sans outillage particulier ni échange de matériel, en déplaçant le volet mobile de réglage on ajuste de manière continue la section de passage de l'entrée d'air du compartiment de collecte d'air afin d'obtenir précisément le débit demandé.An advantage of this ventilation box is that after the complete installation of the smoke extraction system in the building, one can proceed to tests by measuring the real flow of this system which can work in aspiration of fumes or insufflation in the building of fresh air taken outside, then simply and quickly, without special tools or exchange of equipment, moving the movable adjustment flap is continuously adjusted the passage section of the entrance of air from the air collection compartment to precisely obtain the requested flow rate.

En particulier, on peut déplacer le volet mobile de réglage tout en maintenant le fonctionnement de l'installation de désenfumage ainsi que la mesure de son débit, pour arriver rapidement et de manière efficace à la valeur demandée.In particular, it is possible to move the movable adjusting flap while maintaining the operation of the smoke extraction installation and the measurement of its flow, to arrive quickly and efficiently at the requested value.

Le caisson de ventilation selon l'invention peut comporter de plus une ou plusieurs des caractéristiques suivantes, qui peuvent être combinées entre elles.The ventilation box according to the invention may furthermore comprise one or more of the following characteristics, which may be combined with each other.

Avantageusement, le volet de réglage est monté sur un pivot. Le pivot est un moyen simple et économique permettant d'obtenir un mouvement continu du volet.Advantageously, the adjustment flap is mounted on a pivot. The pivot is a simple and economical way to obtain a continuous movement of the shutter.

Dans ce cas le volet de réglage peut être formé par une tôle comportant un perçage recevant le pivot.In this case the adjustment flap may be formed by a sheet having a bore receiving the pivot.

Avantageusement, le caisson de ventilation comporte des moyens de blocage du volet de réglage dans une position quelconque. On peut ainsi bloquer le volet après son réglage pour éviter tout déplacement inattendu pendant la durée de vie de l'installation de désenfumage, afin de conserver ce réglage.Advantageously, the ventilation box comprises locking means of the adjustment flap in any position. It is thus possible to block the flap after adjustment to avoid any unexpected movement during the lifetime of the smoke extraction system, in order to maintain this setting.

Selon l'invention, le volet de réglage comporte une partie accessible par l'extérieur du caisson permettant son réglage, ladite partie étant adaptée pour permettre ledit réglage après la mise en place de gaines de ventilation sur son entrée d'air.According to the invention, the adjustment flap comprises a part accessible from the outside of the box for its adjustment, said part being adapted to allow said adjustment after the introduction of ventilation ducts on its air inlet.

L'invention a aussi pour objet un procédé de réglage d'un caisson de ventilation comprenant l'une quelconque des caractéristiques précédentes, comportant une étape de déplacement du volet de réglage en parallèle de mesures de réglage du débit d'air du caisson de ventilation, pendant le fonctionnement de l'installation de désenfumage installée dans un bâtiment.The subject of the invention is also a method of adjusting a ventilation box comprising any one of the preceding characteristics, comprising a step of moving the adjustment flap in parallel with airflow adjustment measures of the ventilation box. during the operation of the smoke extraction system installed in a building.

L'invention a de plus pour objet une installation de désenfumage comportant un caisson de ventilation comprenant l'une quelconque des caractéristiques précédentes.The invention furthermore relates to a smoke extraction installation comprising a ventilation box comprising any of the preceding features.

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui suit, donnée uniquement à titre d'exemple, en référence aux figures annexées suivantes :

  • la figure 1 présente un caisson de ventilation selon l'art antérieur ; et
  • les figures 2 et 3 présentent un caisson de ventilation selon l'invention, comprenant un volet mobile de réglage qui est successivement ouvert et fermé.
Other characteristics and advantages of the invention will emerge on reading the description which follows, given solely by way of example, with reference to the following appended figures:
  • the figure 1 has a ventilation box according to the prior art; and
  • the Figures 2 and 3 have a ventilation box according to the invention, comprising a movable adjusting flap which is successively open and closed.

Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l'ensemble des figures.For the sake of clarity, identical or similar elements are marked with identical reference signs throughout the figures.

La figure 1 présente un caisson de ventilation 2 comportant un premier compartiment 4 de collecte de l'air extrait, comprenant une entrée d'air 6 recevant de l'air qui peut venir de plusieurs conduits reliés à différentes pièces du bâtiment.The figure 1 has a ventilation box 2 having a first compartment 4 for collecting the extracted air, comprising an air inlet 6 receiving air that can come from several ducts connected to different parts of the building.

Le caisson de ventilation 2 comporte ensuite un deuxième compartiment 8 comportant une turbine centrifuge 10 disposant d'un axe horizontal. La turbine centrifuge 10 prélève de l'air en son centre venant du premier compartiment 4, pour l'éjecter radialement vers l'extérieur au travers d'une sortie d'air 12.The ventilation box 2 then comprises a second compartment 8 comprising a centrifugal turbine 10 having a horizontal axis. The centrifugal turbine 10 draws air at its center coming from the first compartment 4, to eject it radially outwards through an air outlet 12.

Le caisson de ventilation 2 comporte enfin un troisième compartiment 14 contenant à l'intérieur un moteur électrique 16, dont l'arbre est relié directement à la turbine centrifuge 10 pour l'entraîner. Le moteur électrique 16 séparé dans le troisième compartiment 14, ne peut pas recevoir les fumées en cas d'incendie ce qui assure sa protection.The ventilation box 2 finally comprises a third compartment 14 containing inside an electric motor 16, whose shaft is connected directly to the centrifugal turbine 10 to drive it. The electric motor 16 separated in the third compartment 14, can not receive the smoke in case of fire which ensures its protection.

Ce caisson de ventilation 2 comportant une section de passage de l'entrée d'air 6 fixe, et un moteur électrique 16 tournant à une vitesse constante prédéfinie, ne permet pas de réglage du débit d'air de manière simple et rapide au cas où des tests sur l'installation complète donneraient un débit trop important.This ventilation box 2 having a passage section of the fixed air inlet 6, and an electric motor 16 rotating at a predetermined constant speed, does not allow adjustment of the air flow quickly and simply in case tests on the complete installation would give too much flow.

La figure 2 présente un caisson de ventilation 2 similaire comportant sur l'entrée d'air 6 un volet mobile de réglage 20 fixé sur ce caisson par un pivot 22, présentant une forme rectangulaire disposée horizontalement. Le volet de réglage 20 est positionné au-dessus de l'entrée d'air dans sa position la plus ouverte, en laissant à l'entrée d'air 6 la plus grande section de passage.The figure 2 has a similar ventilation box 2 having on the air inlet 6 a movable adjusting flap 20 fixed to this box by a pivot 22, having a rectangular shape disposed horizontally. The adjustment flap 20 is positioned above the air inlet in its most open position, leaving the largest passage section at the air inlet 6.

Avantageusement le volet de réglage 20 est formé de manière économique par une tôle, comportant un perçage recevant le pivot 22 qui peut être réalisé par une vis ou un rivet.Advantageously, the adjustment flap 20 is formed economically by a sheet, comprising a bore receiving the pivot 22 which can be achieved by a screw or a rivet.

La figure 3 présente une action d'un opérateur qui déplace manuellement suivant la flèche F le volet de réglage 20, en le faisant tourner autour de son pivot 22.The figure 3 presents an action of an operator who moves manually according to the arrow F the adjustment flap 20, by turning it around its pivot 22.

Le volet de réglage 20 est présenté sur cette figure après une rotation de 90° dans le sens horaire dans la position basse allongée verticalement, qui est sa position la plus fermée en bouchant environ la moitié de la section de passage de l'entrée d'air 6.The adjustment flap 20 is shown in this figure after a 90 ° clockwise rotation in the vertically elongated low position, which is its most closed position by plugging about half of the inlet passage section of the inlet. air 6.

Le volet de réglage 20 peut prendre toutes les positions intermédiaires entre la position ouverte et la position fermée, par une rotation progressive de ce volet autour de son pivot 22 afin d'ajuster finement la section de passage de l'entrée d'air 6, ainsi que le débit d'air lorsque toutes les autres conditions de fonctionnement de l'installation de désenfumage sont stables.The adjustment flap 20 can take all the intermediate positions between the open position and the closed position, by a progressive rotation of this flap around its pivot 22 in order to finely adjust the passage section of the air inlet 6, as well as the air flow when all other operating conditions of the smoke extraction system are stable.

En complément le volet de réglage 20 peut comporter un système de blocage dans une position quelconque, comme une vis de serrage, permettant à l'opérateur après avoir trouvé la position optimale de bloquer ce volet pour éviter qu'il soit déplacé par la suite sous l'effet de vibrations notamment, ou par un opérateur faisant par exemple des opérations de contrôle ou d'entretien sur le caisson de ventilation 2.In addition, the adjustment flap 20 may comprise a locking system in any position, such as a clamping screw, allowing the operator after having found the optimal position to block this flap to prevent it from being subsequently moved under the effect of vibrations in particular, or by an operator doing for example control or maintenance operations on the ventilation box 2.

Selon l'invention le volet de réglage 20 comporte une partie accessible par l'extérieur du caisson 2 après avoir mis en place les gaines de ventilation sur l'entrée d'air 6. De cette manière un opérateur peut intervenir sur le volet de réglage 22 d'une installation de désenfumage complètement installée dans le bâtiment, de manière à effectuer un réglage progressif au cours du fonctionnement de cette installation, en même temps que des mesures de débits.According to the invention, the adjustment flap 20 comprises a part accessible from the outside of the casing 2 after putting in place the ventilation ducts on the air inlet 6. In this way an operator can intervene on the adjustment flap 22 of a smoke extraction system completely installed in the building, so as to make a progressive adjustment during the operation of this installation, together with flow measurements.

On peut ainsi obtenir rapidement et avec précision, de manière simple et économique le réglage optimal du volet 20, sans perdre de temps avec des successions de mises en marche et d'arrêts de l'installation de désenfumage.It is thus possible to obtain quickly and accurately, simply and economically the optimum setting of the flap 20, without wasting time with successions of start-ups and shutdowns of the smoke extraction system.

Claims (6)

  1. A ventilation box for a smoke extraction installation of a building, including a compartment (4) for collecting air extracted from the building or outside air having an air inlet (6), and compartments (8, 14) containing a turbine (10) as well as a motorization (16) driving this turbine (10), characterized in that the air inlet (6) of the collection compartment (4) includes a movable flap (20) for setting its air passage section and the setting flap (20) includes a portion accessible from outside the box (2) enabling the setting thereof, said portion being adapted to enable said setting after the set-up of ventilation ducts on its air inlet.
  2. The ventilation box according to claim 1, characterized in that the setting flap (20) is mounted on a pivot (22).
  3. The ventilation box according to claim 2, characterized in that the setting flap (20) is formed by a sheet metal including a bore receiving the pivot (22).
  4. The ventilation box according to any one of the preceding claims, characterized in that it includes means for blocking the setting flap (20) in any position.
  5. A smoke extraction installation including a ventilation box, characterized in that this box is according to any one of claims 1 to 4.
  6. A method for setting a ventilation box according to any one of claims 1 to 4, characterized in that it includes a step of displacing the setting flap (20) in compliance with air flow rate setting measurements of the ventilation box (2), during the operation of the smoke extraction installation installed in a building.
EP18157675.2A 2017-02-21 2018-02-20 Ventilation cabinet for a smoke-removal installation comprising an adjustment Active EP3364120B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1751362A FR3063131B1 (en) 2017-02-21 2017-02-21 VENTILATION BOX FOR A SMOKE EXHAUST SYSTEM WITH ADJUSTMENT

Publications (2)

Publication Number Publication Date
EP3364120A1 EP3364120A1 (en) 2018-08-22
EP3364120B1 true EP3364120B1 (en) 2019-12-11

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Application Number Title Priority Date Filing Date
EP18157675.2A Active EP3364120B1 (en) 2017-02-21 2018-02-20 Ventilation cabinet for a smoke-removal installation comprising an adjustment

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EP (1) EP3364120B1 (en)
DK (1) DK3364120T3 (en)
FR (1) FR3063131B1 (en)

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CN111023384A (en) * 2019-12-28 2020-04-17 安徽协鼎建设工程有限公司 Smoke exhaust system for fire engineering

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Publication number Priority date Publication date Assignee Title
DE2219380C3 (en) * 1972-04-20 1978-11-16 Ltg Lufttechnische Gmbh, 7000 Stuttgart Volume flow controller
FR2776054B1 (en) * 1998-03-13 2000-08-04 Elge Etablissements Grandvuine COLLECTIVE VENTILATION SYSTEM WITH THERMAL OPENING AIR INTAKE
KR20090099639A (en) * 2008-03-18 2009-09-23 천윤경 Auto smoke removing system for building
FR2995064A1 (en) * 2012-09-06 2014-03-07 Systel Ventilation device for use under roof at ceiling of livestock building of animals, has air inlet opening off-centered with respect to base of air extraction column and comprising edge at extension of rear face of box opposite to frontage
CN205878375U (en) * 2016-06-30 2017-01-11 珀隆有限公司 Fresh air purification machine with filter screen is changed and is reminded function

Non-Patent Citations (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111023384A (en) * 2019-12-28 2020-04-17 安徽协鼎建设工程有限公司 Smoke exhaust system for fire engineering

Also Published As

Publication number Publication date
FR3063131A1 (en) 2018-08-24
DK3364120T3 (en) 2020-03-16
EP3364120A1 (en) 2018-08-22
FR3063131B1 (en) 2021-05-14

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