EP3430322B1 - Air inlet systems for a building having a crosspiece providing a constant flow - Google Patents

Air inlet systems for a building having a crosspiece providing a constant flow Download PDF

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Publication number
EP3430322B1
EP3430322B1 EP17719646.6A EP17719646A EP3430322B1 EP 3430322 B1 EP3430322 B1 EP 3430322B1 EP 17719646 A EP17719646 A EP 17719646A EP 3430322 B1 EP3430322 B1 EP 3430322B1
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EP
European Patent Office
Prior art keywords
air intake
air
spacer
intake system
air inlet
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EP17719646.6A
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German (de)
French (fr)
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EP3430322A1 (en
Inventor
Olivier Burias
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Aereco
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Aereco
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Priority to PL17719646T priority Critical patent/PL3430322T3/en
Publication of EP3430322A1 publication Critical patent/EP3430322A1/en
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Publication of EP3430322B1 publication Critical patent/EP3430322B1/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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
    • 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
    • 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
    • F24F13/18—Air-flow control members, e.g. louvres, grilles, flaps or guide plates specially adapted for insertion in flat panels, e.g. in door or window-pane

Definitions

  • the present invention relates to an air intake system for the interior ventilation of a building, in particular for a dwelling or a tertiary building.
  • Buildings receiving people in particular housing or tertiary premises such as schools or offices, generally include a ventilation system for the various rooms to renew the air, comprising a system for extracting the air from the premises, and air inlets coming from the outside to compensate for this extraction.
  • the main objective of renewing the air in the rooms is to remove pollutants from the air linked to the presence of occupants, the presence of the equipment or machines used in these premises, as well as those emitted by the building itself. Even. Air pollutants are in particular carbon dioxide CO2, humidity and volatile organic compounds called “VOCs”.
  • the ventilation of the premises can be natural, with air ducts from different rooms to the outside, which have a thermal draft activated by the natural pressure difference when the air is colder outside.
  • the outside temperature is higher, the pressure differential between the inside and the outside is lost, and the air flow may be insufficient.
  • the ventilation of the premises can also be carried out by a controlled mechanical ventilation called "VMC", comprising a turbine driven by a continuously rotating electric motor, which generates a vacuum for activate the flow in the air ducts opening to the outside.
  • VMC controlled mechanical ventilation
  • the ventilation can have variable operation, in particular having a fixed, modulated or intermittent flow rate.
  • an intermediate ventilation system also called hybrid ventilation
  • the speed of the turbine can be automatically adjusted according to the outside temperature which activates natural ventilation.
  • the air is extracted through extraction vents placed in technical rooms, such as the kitchen, the toilets or the bathroom, and the air is introduced into living rooms, such as the living room, the office, the living room or the bedrooms.
  • Air inlets generally form grilles placed above doors or windows, or at the top of walls, which first scans living rooms, then technical rooms where air is extracted. , generally representing rooms where pollutants are more numerous.
  • the air intake grilles have a surface fixed to the wall surrounding an opening to the outside, and a shape which directs the air inwards including in some cases a system for adjusting the passage section which can be partially or fully closed. This adjustment can be manual, or automated with automatic modulation according to the detection of a pollutant.
  • the object of the present invention is in particular to avoid these drawbacks of the prior art.
  • this spacer is then fixed on the wall in place of the device without any modification of this wall.
  • the assembly is done in a simple, fast and economical way.
  • the air intake system according to the invention can also include one or more of the following characteristics, which can be combined with one another.
  • the direct passage of air from the spacer towards the interior of the building is designed to be directed upwards. In this way the constant air flow is not directed towards the users.
  • the two faces of the spacer provided for the fasteners are parallel.
  • the air intake device finds the same orientation as it has without the spacer.
  • the two faces of the spacer provided for the fixings form an angle which tilts the air inlet device downwards.
  • the angle formed by the two faces of the spacer may be between 15 and 45 °.
  • the air inlet device comprises a means for adjusting the flow rate. Whatever the setting of the flow rate, the constant air flow is then obtained as a minimum.
  • the flow rate adjustment means may include an automatic mechanism based on a measurement of pollutants in the air.
  • the main air flow is designed to be directed upwards.
  • the air inlet device and the spacer can include aligned holes allowing fixing to the wall with the same screws. In this way, no specific fixing means are added for the spacer, the assembly being fixed in the same way as the air inlet device alone.
  • the outer contour of the spacer corresponds to that of the air inlet device. This gives an assembly having aligned exterior surfaces, which is aesthetic.
  • the figure 1 presents an exterior wall of a building 2 comprising an opening towards the exterior 4 extending horizontally, receiving on its exterior wall disposed on the front side indicated by the arrow "AV", a canopy 6 disposed above this opening protecting it the entry of rain or snow.
  • the air inlet device 10 comprises a rigid structure of thin thickness, having a constant cross section, comprising a lower box of rigidity 14 of substantially square section which is fitted below the opening 4.
  • An adjustable opening valve 18 is held by a longitudinal hinge disposed just below the opening 4, near the wall of the wall 2, which is fixed above the box 14.
  • the valve 18 comprising a slightly rounded shape turned backwards, a in the closed position presented figure 1a its upper edge which bears on a longitudinal sealing bar 20.
  • valve 18 In the open position presented figure 1b , the valve 18 retracted rearwardly bears on a substantially parallel fixed partition 16, which connects the rigidity box 14 to the rear face 12.
  • valve 18 In the closed position the valve 18 completely closes the air inlet facing the opening 4. In the open position the valve 18 forms a progressive guide of the air flow F coming from the outside to direct it upwards. , to avoid pointing it at people in the room.
  • the control of the adjustable valve 18 can be manual or motorized.
  • the figures 2, 3, 4a and 4b present an additional air inlet spacer 30 comprising a flat front face fixed to the wall of the wall 2, and a parallel flat rear face receiving in an adjusted manner along the same contour, the flat front surface of the air inlet device. air 10.
  • the flat front surface of the air inlet device 10 may have a different contour from that of the air inlet spacer 30.
  • the spacer 30 comprises in the lower part a lower box 32 fitted at the bottom of the opening 4, which receives the support of the rigidity box 14 of the air inlet device 10.
  • the spacer 30 comprises in the upper part a flow guide 34 having an aerodynamic profile, comprising a tip facing forward, which separates above a small section allowing a minimum constant air flow F1 directed upwards, and below a large section allowing a main air flow directed horizontally towards the adjustable valve 18 of the air inlet device 10.
  • the small cross section of the constant air flow F1 smaller than the large cross section of the main air flow F advantageously comprised between 15 to 50% of this large cross section, in particular represents approximately 40% of this cross section.
  • the spacer 30 has at each longitudinal end a tip 40 which comes beyond the air passage, having a bore receiving a fixing screw for fixing to the wall of the wall.
  • the outer canopy 6 also comprises end pieces 40 each having a bore receiving a fixing screw on the outer wall of the wall 2.
  • the air inlet device 10, the spacer 30 and the outer canopy 6 comprise partitions or transverse bars 42 regularly spaced, which stiffen these elements in order to avoid their deformation, without hindering the air flow. parallel to these shapes.
  • all the elements 6, 10, 30 are formed by molding a plastic material, which makes it possible to produce complex shapes in a simple and economical manner.
  • a spacer 30 is easily added under a standard adjustable air inlet device 10, which gives at least whatever the state of this inlet the constant flow F1 directed upwards. As a variant, this constant flow F could be directed downwards.
  • a standard air inlet device 10 comprising an automated means for adjusting its flow rate, for example with an integrated sensor for measuring pollutants.
  • the figures 5 and 6 present an air inlet device 10 according to a variant, comprising an adjustable flat opening valve 18, presented in the semi-open position. Compared to the previous air intake device presented figure 2 , this air inlet device 10 has a reduced height, and a greater width ending towards the rear in a rear face 12 which is strongly rounded.
  • a flat fixed internal partition 16 forms a rear stop of the adjustable valve 18 when it is fully open, which comprises on its rear face a succession of parallel horizontal ribs 50.
  • the figures 7 and 8 have a spacer 30 comprising the air outlet of the constant flow F1 facing upwards, and the rear face which is inclined relative to the front face downwards, at an angle advantageously between 15 and 45 °, which is in this example of 30 °.
  • This spacer 30 has at its base an almost zero width, which gives it minimum bulk.
  • the figure 9 presents as a function of the setting R of the opening valve 18, ranging from an almost closed position 0 to a fully open position 1, the air flows D given by all the air inlets.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Building Environments (AREA)
  • Air-Flow Control Members (AREA)

Description

La présente invention concerne un système d'entrée d'air pour l'aération intérieure d'un bâtiment, en particulier pour une habitation ou un bâtiment tertiaire.The present invention relates to an air intake system for the interior ventilation of a building, in particular for a dwelling or a tertiary building.

Les bâtiments recevant des personnes, notamment les logements ou les locaux tertiaires comme les écoles ou les bureaux, comportent généralement un système d'aération des différentes pièces pour renouveler l'air, comprenant un système d'extraction de l'air des locaux, et des entrées d'air venant de l'extérieur afin de compenser cette extraction.Buildings receiving people, in particular housing or tertiary premises such as schools or offices, generally include a ventilation system for the various rooms to renew the air, comprising a system for extracting the air from the premises, and air inlets coming from the outside to compensate for this extraction.

Le renouvellement de l'air des pièces a pour principal objectif d'évacuer les polluants de l'air liés à la présence des occupants, à la présence du matériel ou des machines utilisées dans ces locaux, ainsi que ceux émis par le bâtiment lui-même. Les polluants de l'air sont en particulier le gaz carbonique CO2, l'humidité et les composés organiques volatils appelés « COV ».The main objective of renewing the air in the rooms is to remove pollutants from the air linked to the presence of occupants, the presence of the equipment or machines used in these premises, as well as those emitted by the building itself. even. Air pollutants are in particular carbon dioxide CO2, humidity and volatile organic compounds called “VOCs”.

En particulier chaque personne respirant pendant une journée un volume d'air d'environ 12m3, il est important pour des raisons d'hygiène et de confort de réaliser un renouvellement de l'air des pièces fermées. On renouvelle aussi cet air pour contrôler le taux d'hygrométrie intérieur du bâtiment. De plus il est nécessaire de maîtriser le débit du renouvellement d'air, afin de limiter les déperditions thermiques dues à l'évacuation de l'air intérieur chauffé en hiver.In particular each person breathing during a day an air volume of approximately 12m 3 , it is important for reasons of hygiene and comfort to carry out a renewal of the air of the closed rooms. This air is also renewed to control the humidity level inside the building. In addition, it is necessary to control the flow of air renewal, in order to limit the heat losses due to the evacuation of the indoor air heated in winter.

La ventilation des locaux peut être naturelle, avec des conduits d'air partant de différentes pièces pour déboucher à l'extérieur, qui présentent un tirage thermique activé par la différence de pression naturelle quand l'air est plus froid à l'extérieur. Quand la température extérieure est plus élevée on perd le différentiel de pression entre l'intérieur et l'extérieur, et le débit d'air peut être insuffisant.The ventilation of the premises can be natural, with air ducts from different rooms to the outside, which have a thermal draft activated by the natural pressure difference when the air is colder outside. When the outside temperature is higher, the pressure differential between the inside and the outside is lost, and the air flow may be insufficient.

La ventilation des locaux peut être aussi réalisée par une ventilation mécanique contrôlée appelée « VMC », comportant une turbine entraînée par un moteur électrique tournant en permanence, qui génère une dépression pour activer le débit dans les conduits d'air débouchant à l'extérieur. La ventilation peut comporter un fonctionnement variable, présentant notamment un débit fixe, modulé ou intermittent.The ventilation of the premises can also be carried out by a controlled mechanical ventilation called "VMC", comprising a turbine driven by a continuously rotating electric motor, which generates a vacuum for activate the flow in the air ducts opening to the outside. The ventilation can have variable operation, in particular having a fixed, modulated or intermittent flow rate.

En variante un système de ventilation intermédiaire, appelé aussi ventilation hybride, comporte une turbine présentant à l'arrêt une faible perte de charge dans le conduit, qui est arrêtée quand le tirage thermique de la ventilation naturelle est suffisant, et qui tourne à une vitesse variable adaptée quand la ventilation naturelle est insuffisante pour compenser le débit trop faible. En particulier la vitesse de la turbine peut être ajustée automatiquement en fonction de la température extérieure qui active la ventilation naturelle.As a variant, an intermediate ventilation system, also called hybrid ventilation, comprises a turbine having a low pressure drop in the duct when stopped, which is stopped when the thermal draft of the natural ventilation is sufficient, and which rotates at a speed variable adapted when natural ventilation is insufficient to compensate for the too low flow. In particular, the speed of the turbine can be automatically adjusted according to the outside temperature which activates natural ventilation.

D'une manière générale dans un bâtiment à usage d'habitation on extrait l'air par des bouches d'extraction placées dans des pièces techniques, comme la cuisine, les toilettes ou la salle de bains, et on introduit l'air dans des pièces d'habitation, comme le séjour, le bureau, le salon ou les chambres.In general, in a building for residential use, the air is extracted through extraction vents placed in technical rooms, such as the kitchen, the toilets or the bathroom, and the air is introduced into living rooms, such as the living room, the office, the living room or the bedrooms.

Les entrées d'air forment généralement des grilles placées au-dessus des portes ou des fenêtres, ou en haut des murs, ce qui donne d'abord un balayage des pièces d'habitation, puis ensuite des pièces techniques où l'air est extrait, représentant généralement les locaux où les polluants sont plus nombreux.Air inlets generally form grilles placed above doors or windows, or at the top of walls, which first scans living rooms, then technical rooms where air is extracted. , generally representing rooms where pollutants are more numerous.

Les grilles d'entrée d'air comportent une surface fixée sur la paroi entourant une ouverture vers l'extérieur, et une forme qui dirige l'air vers l'intérieur comprenant dans certains cas un système de réglage de la section de passage qui peut être partiellement ou entièrement fermée. Ce réglage peut être manuel, ou automatisé avec une modulation automatique en fonction de la détection d'un polluant.The air intake grilles have a surface fixed to the wall surrounding an opening to the outside, and a shape which directs the air inwards including in some cases a system for adjusting the passage section which can be partially or fully closed. This adjustment can be manual, or automated with automatic modulation according to the detection of a pollutant.

Un problème qui se pose dans le cas de systèmes d'entrée d'air comprenant un réglage de la section de passage, est qu'un opérateur peut fermer entièrement ce débit dans le cas où on ne souhaite pas aérer la pièce, et par la suite oublier de le réouvrir au moins en partie pour procéder à l'aération normale de la pièce. Il en est de même pour un réglage automatisé de la section de passage d'air, avec un risque de fermeture complète en cas notamment de panne du système de commande. On n'a alors plus de balayage de la pièce d'entrée. Le document EP-A-0165200 décrit un système d'entrée d'air pour l'aération d'un bâtiment selon le préambule de la revendication 1.A problem that arises in the case of air intake systems comprising an adjustment of the passage section, is that an operator can completely shut off this flow in the case where it is not desired to ventilate the room, and by the then forget to reopen it at least in part to proceed with the normal ventilation of the room. The same is true for an automated adjustment of the air passage section, with a risk of complete closure in the event of including failure of the control system. There is then no longer any sweeping of the entrance room. The document EP-A-0165200 describes an air intake system for ventilation of a building according to the preamble of claim 1.

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

Elle propose à cet effet un système d'entrée d'air pour l'aération d'un bâtiment, selon la revendication 1.To this end, it proposes an air intake system for ventilating a building, according to claim 1.

Un avantage de ce système d'entrée d'air est qu'en fixant l'entretoise sur la paroi à la place d'un dispositif d'entrée d'air réglable standard, ce dispositif étant fixé sur cette entretoise, on garantit dans tous les cas le flux d'air constant minimum avec le passage direct vers l'intérieur du bâtiment qui ne peut pas être réduit, quels que soient les réglages du dispositif d'entrée d'air standard.An advantage of this air inlet system is that by fixing the spacer on the wall instead of a standard adjustable air inlet device, this device being fixed on this spacer, it is guaranteed in all cases the minimum constant air flow with the direct passage to the interior of the building which cannot be reduced, regardless of the settings of the standard air inlet device.

De plus en prévoyant des fixations de l'entretoise sur la paroi équivalentes à celles du dispositif d'entrée d'air, on fixe alors cette entretoise sur la paroi à la place du dispositif sans aucune modification de cette paroi. Le montage se fait de manière simple, rapide et économique.In addition by providing fixings of the spacer on the wall equivalent to those of the air inlet device, this spacer is then fixed on the wall in place of the device without any modification of this wall. The assembly is done in a simple, fast and economical way.

Le système d'entrée d'air selon l'invention peut de plus comporter une ou plusieurs des caractéristiques suivantes, qui peuvent être combinées entre elles.The air intake system according to the invention can also include one or more of the following characteristics, which can be combined with one another.

Avantageusement, le passage d'air direct de l'entretoise vers l'intérieur du bâtiment est prévu pour être dirigé vers le haut. De cette manière le flux d'air constant n'est pas dirigé sur les usagers.Advantageously, the direct passage of air from the spacer towards the interior of the building is designed to be directed upwards. In this way the constant air flow is not directed towards the users.

Selon un mode de réalisation, les deux faces de l'entretoise prévues pour les fixations sont parallèles. Le dispositif d'entrée d'air trouve alors la même orientation qu'il a sans l'entretoise.According to one embodiment, the two faces of the spacer provided for the fasteners are parallel. The air intake device then finds the same orientation as it has without the spacer.

Selon un autre mode de réalisation, les deux faces de l'entretoise prévues pour les fixations forment un angle qui incline le dispositif d'entrée d'air vers le bas.According to another embodiment, the two faces of the spacer provided for the fixings form an angle which tilts the air inlet device downwards.

Dans ce cas, l'angle formé par les deux faces de l'entretoise peut être compris entre 15 et 45°.In this case, the angle formed by the two faces of the spacer may be between 15 and 45 °.

Selon l'invention, le dispositif d'entrée d'air comporte un moyen de réglage du débit. Quel que soit le réglage du débit, on obtient alors au minimum le flux d'air constant.According to the invention, the air inlet device comprises a means for adjusting the flow rate. Whatever the setting of the flow rate, the constant air flow is then obtained as a minimum.

Dans ce cas, le moyen de réglage du débit peut comporter un automatisme en fonction d'une mesure de polluants dans l'air.In this case, the flow rate adjustment means may include an automatic mechanism based on a measurement of pollutants in the air.

Avantageusement, le flux d'air principal est prévu pour être dirigé vers le haut.Advantageously, the main air flow is designed to be directed upwards.

Avantageusement, le dispositif d'entrée d'air et l'entretoise peuvent comporter des perçages alignés permettant la fixation sur la paroi avec des mêmes vis. De cette manière on n'ajoute pas de moyen de fixation spécifique pour l'entretoise, l'ensemble étant fixé de la même manière que le dispositif d'entrée d'air seul.Advantageously, the air inlet device and the spacer can include aligned holes allowing fixing to the wall with the same screws. In this way, no specific fixing means are added for the spacer, the assembly being fixed in the same way as the air inlet device alone.

Avantageusement, le contour extérieur de l'entretoise correspond à celui du dispositif d'entrée d'air. On obtient un ensemble présentant des surfaces extérieures alignées, qui est esthétique.Advantageously, the outer contour of the spacer corresponds to that of the air inlet device. This gives an assembly having aligned exterior surfaces, which is aesthetic.

L'invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront plus clairement à la lecture de la description ci-après donnée à titre d'exemple, en référence aux dessins annexés dans lesquels :

  • les figures 1a et 1b présentent en coupe transversale un dispositif d'entrée d'air fixé sur une cloison, présenté successivement en position fermée et en position ouverte ;
  • la figure 2 présente en perspective un système d'entrée d'air selon l'invention, comportant ce dispositif d'entrée d'air fixé sur une entretoise à faces parallèles ;
  • la figure 3 présente cet ensemble en vue éclatée ;
  • les figures 4a et 4b sont des coupes transversales de cet ensemble suivant le plan de coupe IV-IV, présentant successivement le dispositif d'entrée d'air en position fermée et en position ouverte ;
  • les figures 5 et 6 présentent successivement en perspective et en coupe transversale suivant le plan de coupe VI-VI, un autre système d'entrée d'air ;
  • les figures 7 et 8 présentent successivement en perspective et en coupe transversale suivant le plan de coupe VIII-VIII, un système d'entrée d'air suivant une variante, comportant ce dispositif d'entrée d'air fixé sur une entretoise à faces inclinées ; et
  • la figure 9 est un schéma présentant les débits d'air pour un système d'entrée d'air avec et sans l'invention.
The invention will be better understood and other characteristics and advantages will emerge more clearly on reading the description given below by way of example, with reference to the appended drawings in which:
  • the figures 1a and 1b show in cross section an air inlet device fixed to a partition, presented successively in the closed position and in the open position;
  • the figure 2 shows in perspective an air inlet system according to the invention, comprising this air inlet device fixed to a spacer with parallel faces;
  • the figure 3 presents this assembly in exploded view;
  • the figures 4a and 4b are cross sections of this assembly along section IV-IV, successively showing the air inlet device in the closed position and in the open position;
  • the figures 5 and 6 present successively in perspective and in cross section along the section plane VI-VI, another air inlet system;
  • the figures 7 and 8 show successively in perspective and in cross section along the section plane VIII-VIII, an air inlet system according to a variant, comprising this air inlet device fixed on a spacer with inclined faces; and
  • the figure 9 is a diagram showing the air flow rates for an air intake system with and without the invention.

La figure 1 présente un mur extérieur d'un bâtiment 2 comportant une ouverture vers l'extérieur 4 se prolongeant horizontalement, recevant sur sa paroi extérieure disposée du côté avant indiqué par la flèche « AV », un auvent 6 disposé au-dessus de cette ouverture la protégeant l'entrée de pluie ou de neige.The figure 1 presents an exterior wall of a building 2 comprising an opening towards the exterior 4 extending horizontally, receiving on its exterior wall disposed on the front side indicated by the arrow "AV", a canopy 6 disposed above this opening protecting it the entry of rain or snow.

Un dispositif d'entrée d'air 10 fixé sur la paroi intérieure du mur 2, forme un bandeau allongé horizontalement qui recouvre entièrement l'ouverture extérieure 4.An air inlet device 10 fixed to the interior wall of the wall 2, forms a horizontally elongated strip which completely covers the exterior opening 4.

Le dispositif d'entrée d'air 10 comporte une structure rigide d'épaisseur mince, présentant une section transversale constante, comprenant un caisson inférieur de rigidité 14 de section sensiblement carrée qui est ajusté en-dessous de l'ouverture 4. Une face arrière lisse 12 couvrant le côté arrière du caisson de rigidité 14, remonte un peu au-dessus de l'ouverture 4.The air inlet device 10 comprises a rigid structure of thin thickness, having a constant cross section, comprising a lower box of rigidity 14 of substantially square section which is fitted below the opening 4. A rear face smooth 12 covering the rear side of the rigidity box 14, rises a little above the opening 4.

Un clapet réglable d'ouverture 18 est maintenu par une charnière longitudinale disposée juste en dessous de l'ouverture 4, près de la paroi du mur 2, qui est fixée au-dessus du caisson 14. Le clapet 18 comprenant une forme légèrement bombée tournée vers l'arrière, a dans la position fermée présentée figure 1a son bord supérieur qui vient en appui sur une barrette longitudinale d'étanchéité 20.An adjustable opening valve 18 is held by a longitudinal hinge disposed just below the opening 4, near the wall of the wall 2, which is fixed above the box 14. The valve 18 comprising a slightly rounded shape turned backwards, a in the closed position presented figure 1a its upper edge which bears on a longitudinal sealing bar 20.

Dans la position ouverte présentée figure 1b, le clapet 18 reculé vers l'arrière vient en appui sur une cloison fixe 16 sensiblement parallèle, qui relie le caisson de rigidité 14 à la face arrière 12.In the open position presented figure 1b , the valve 18 retracted rearwardly bears on a substantially parallel fixed partition 16, which connects the rigidity box 14 to the rear face 12.

Dans la position fermée le clapet 18 ferme entièrement l'entrée d'air face à l'ouverture 4. Dans la position ouverte le clapet 18 forme un guidage progressif du flux d'air F venant de l'extérieur pour le diriger vers le haut, afin d'éviter de le diriger vers des personnes présentes dans la pièce.In the closed position the valve 18 completely closes the air inlet facing the opening 4. In the open position the valve 18 forms a progressive guide of the air flow F coming from the outside to direct it upwards. , to avoid pointing it at people in the room.

La commande du clapet réglable 18 peut être manuelle ou motorisée.The control of the adjustable valve 18 can be manual or motorized.

Les figures 2, 3, 4a et 4b présentent une entretoise additionnelle d'entrée d'air 30 comportant une face avant plane fixée sur la paroi du mur 2, et une face arrière plane parallèle recevant de manière ajustée suivant un même contour, la surface avant plane du dispositif d'entrée d'air 10.The figures 2, 3, 4a and 4b present an additional air inlet spacer 30 comprising a flat front face fixed to the wall of the wall 2, and a parallel flat rear face receiving in an adjusted manner along the same contour, the flat front surface of the air inlet device. air 10.

En variante la surface avant plane du dispositif d'entrée d'air 10 peut présenter un contour différent de celui de l'entretoise d'entrée d'air 30.As a variant, the flat front surface of the air inlet device 10 may have a different contour from that of the air inlet spacer 30.

L'entretoise 30 comporte en partie inférieure un caisson inférieur 32 ajusté en bas de l'ouverture 4, qui reçoit l'appui du caisson de rigidité 14 du dispositif d'entrée d'air 10.The spacer 30 comprises in the lower part a lower box 32 fitted at the bottom of the opening 4, which receives the support of the rigidity box 14 of the air inlet device 10.

L'entretoise 30 comporte en partie supérieure un guidage de flux 34 présentant un profil aérodynamique, comportant une pointe tournée vers l'avant, qui sépare au-dessus une petite section permettant un flux d'air constant minimum F1 dirigé vers le haut, et en dessous une grande section permettant un flux d'air principal dirigé horizontalement vers le clapet réglable 18 du dispositif d'entrée d'air 10.The spacer 30 comprises in the upper part a flow guide 34 having an aerodynamic profile, comprising a tip facing forward, which separates above a small section allowing a minimum constant air flow F1 directed upwards, and below a large section allowing a main air flow directed horizontally towards the adjustable valve 18 of the air inlet device 10.

La petite section du flux d'air constant F1 inférieure à la grande section du flux d'air principal F, comprise avantageusement entre 15 à 50% de cette grande section, représente en particulier environ 40% de cette section.The small cross section of the constant air flow F1 smaller than the large cross section of the main air flow F, advantageously comprised between 15 to 50% of this large cross section, in particular represents approximately 40% of this cross section.

L'entretoise 30 comporte à chaque extrémité longitudinale un embout 40 qui vient au-delà du passage d'air, présentant un perçage recevant une vis de fixation pour se fixer sur la paroi du mur.The spacer 30 has at each longitudinal end a tip 40 which comes beyond the air passage, having a bore receiving a fixing screw for fixing to the wall of the wall.

L'auvent extérieur 6 comporte aussi des embouts 40 présentant chacun un perçage recevant une vis de fixation sur la paroi extérieure du mur 2.The outer canopy 6 also comprises end pieces 40 each having a bore receiving a fixing screw on the outer wall of the wall 2.

Le dispositif d'entrée d'air 10, l'entretoise 30 et l'auvent extérieur 6 comportent des cloisons ou barrettes transversales 42 régulièrement espacées, qui rigidifient ces éléments afin d'éviter leur déformation, sans pour autant gêner les flux d'air parallèles à ces formes.The air inlet device 10, the spacer 30 and the outer canopy 6 comprise partitions or transverse bars 42 regularly spaced, which stiffen these elements in order to avoid their deformation, without hindering the air flow. parallel to these shapes.

Avantageusement tous les éléments 6, 10, 30 sont formés par un moulage d'une matière plastique, qui permet de réaliser de manière simple et économique des formes complexes.Advantageously, all the elements 6, 10, 30 are formed by molding a plastic material, which makes it possible to produce complex shapes in a simple and economical manner.

On obtient une entretoise 30 facilement ajoutée sous un dispositif d'entrée d'air standard réglable 10, qui donne au minimum quel que soit l'état de cette entrée le flux constant F1 dirigé vers le haut. En variante ce flux constant F pourrait être dirigé vers le bas.A spacer 30 is easily added under a standard adjustable air inlet device 10, which gives at least whatever the state of this inlet the constant flow F1 directed upwards. As a variant, this constant flow F could be directed downwards.

En particulier on peut conserver un dispositif d'entrée d'air standard 10 comportant un moyen automatisé de réglage de son débit, par exemple avec un capteur intégré de mesure de polluants.In particular, it is possible to keep a standard air inlet device 10 comprising an automated means for adjusting its flow rate, for example with an integrated sensor for measuring pollutants.

Les figures 5 et 6 présentent un dispositif d'entrée d'air 10 suivant une variante, comportant un clapet réglable d'ouverture 18 plat, présenté en position semi-ouverte. Par rapport au dispositif d'entrée d'air précédent présenté figure 2, ce dispositif d'entrée d'air 10 présente une hauteur réduite, et une largeur plus importante se terminant vers l'arrière par une face arrière 12 fortement arrondie.The figures 5 and 6 present an air inlet device 10 according to a variant, comprising an adjustable flat opening valve 18, presented in the semi-open position. Compared to the previous air intake device presented figure 2 , this air inlet device 10 has a reduced height, and a greater width ending towards the rear in a rear face 12 which is strongly rounded.

Une cloison interne fixe plate 16 forme une butée arrière du clapet réglable 18 quand il est entièrement ouvert, qui comporte sur sa face arrière une succession de nervures horizontales parallèles 50.A flat fixed internal partition 16 forms a rear stop of the adjustable valve 18 when it is fully open, which comprises on its rear face a succession of parallel horizontal ribs 50.

Les figures 7 et 8 présentent une entretoise 30 comportant la sortie d'air du flux constant F1 tournée vers le haut, et la face arrière qui est inclinée par rapport à la face avant vers le bas, suivant un angle avantageusement compris entre 15 et 45°, qui est dans cet exemple de 30°. Cette entretoise 30 comporte à sa base une largeur quasiment nulle, ce qui lui donne un encombrement minimum.The figures 7 and 8 have a spacer 30 comprising the air outlet of the constant flow F1 facing upwards, and the rear face which is inclined relative to the front face downwards, at an angle advantageously between 15 and 45 °, which is in this example of 30 °. This spacer 30 has at its base an almost zero width, which gives it minimum bulk.

De cette manière on obtient le flux constant F1 dirigé vers le haut, et le flux principal F passant par le dispositif d'entrée d'air 10, qui en sort vers le haut avec un angle vers l'intérieur de la pièce à cause de l'inclinaison de 30° de ce dispositif.In this way one obtains the constant flow F1 directed upwards, and the main flow F passing through the air inlet device 10, which leaves it towards the high with an angle towards the interior of the room due to the 30 ° inclination of this device.

La figure 9 présente en fonction du réglage R du clapet d'ouverture 18, allant d'une position presque fermée 0 à une position entièrement ouverte 1, les débits d'air D donnée par l'ensemble des entrées d'air.The figure 9 presents as a function of the setting R of the opening valve 18, ranging from an almost closed position 0 to a fully open position 1, the air flows D given by all the air inlets.

On a le flux principal F qui va d'un flux minimum Fmin à un flux maximum Fmax, auquel s'ajoute dans tous les cas le flux constant F1 qui ne change pas. Si le dispositif d'entrée d'air comporte un flux minimum Fmin égale à zéro, on a alors toujours le flux constant F1.We have the main flow F which goes from a minimum flow Fmin to a maximum flow Fmax, to which is added in all cases the constant flow F1 which does not change. If the air inlet device has a minimum flow Fmin equal to zero, then there is always the constant flow F1.

Claims (9)

  1. An air intake system for the ventilation of a building, including an air intake device (10) having a fixing surface provided to be fixed to a wall (2) comprising an opening facing towards the outside (4), characterized in that it includes a spacer (30) comprising a first face configured to be fixed to the wall (2) by surrounding the external opening (4), and a second substantially opposite face configured to receive the fixing surface of the air intake device (10), this spacer including from the opening to the outside, a direct air passage towards the interior of the building forming a constant flow (F1), and an inner air passage towards this intake device forming a main flow (F), the air intake system further including a means for adjusting flow rate.
  2. The air intake system according to claim 1, characterized in that the direct air passage from the spacer (30) towards the interior of the building is provided to be directed upwards.
  3. The air intake system according to claim 1 or 2, characterized in that the two faces of the spacer (30) provided for the fixings are parallel.
  4. The air intake system according to claim 2, characterized in that the two faces of the spacer (30) provided for the fixings form an angle which tilts the air intake device (10) downwards.
  5. The air intake system according to claim 4, characterized in that the angle formed by the two faces of the spacer (30) is comprised between 15 and 45°.
  6. The air intake system according to any one of the preceding claims, characterized in that the flow rate adjustment means includes an automatic mechanism based on a measurement of pollutants in the air.
  7. The air intake system according to any one of the preceding claims, characterized in that the main air flow (F) is provided to be directed upwards.
  8. The air intake system according to any one of the preceding claims, characterized in that the air intake device (10) and the spacer (30) include aligned holes allowing the fixing to the wall (2) with the same screws.
  9. The air intake system according to any one of the preceding claims, characterized in that the external contour of the spacer (30) corresponds to that of the air intake device (10).
EP17719646.6A 2016-03-14 2017-03-14 Air inlet systems for a building having a crosspiece providing a constant flow Active EP3430322B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL17719646T PL3430322T3 (en) 2016-03-14 2017-03-14 Air inlet systems for a building having a crosspiece providing a constant flow

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1652123A FR3048759B1 (en) 2016-03-14 2016-03-14 AIR INTAKE SYSTEMS FOR A BUILDING COMPRISING A SPACER GIVING A CONSTANT FLOW
PCT/FR2017/050577 WO2017158279A1 (en) 2016-03-14 2017-03-14 Air inlet systems for a building having a crosspiece providing a constant flow

Publications (2)

Publication Number Publication Date
EP3430322A1 EP3430322A1 (en) 2019-01-23
EP3430322B1 true EP3430322B1 (en) 2021-03-10

Family

ID=56119526

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17719646.6A Active EP3430322B1 (en) 2016-03-14 2017-03-14 Air inlet systems for a building having a crosspiece providing a constant flow

Country Status (6)

Country Link
EP (1) EP3430322B1 (en)
FR (1) FR3048759B1 (en)
HU (1) HUE054321T2 (en)
LT (1) LT3430322T (en)
PL (1) PL3430322T3 (en)
WO (1) WO2017158279A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1527197A (en) * 1967-04-21 1968-05-31 Rech S De Ventilation Et D Aer Flow regulating diffuser intended, in particular, for the intake of fresh air in living quarters
DE7013610U (en) * 1970-04-14 1970-07-09 Vaw Ver Aluminium Werke Ag DEVICE FOR VENTILATING ROOMS.
US4338967A (en) * 1979-03-01 1982-07-13 The United States Of America As Represented By The United States Department Of Energy Universal link bar operator and actuator for rotating blade air, smoke, and fire dampers
US4625629A (en) * 1984-06-11 1986-12-02 Carrier Corporation Heating/cooling diffuser
GB2383124B (en) * 2001-12-13 2005-09-28 Titon Hardware A ventilation device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR3048759A1 (en) 2017-09-15
WO2017158279A1 (en) 2017-09-21
LT3430322T (en) 2021-07-26
FR3048759B1 (en) 2019-08-16
HUE054321T2 (en) 2021-09-28
EP3430322A1 (en) 2019-01-23
PL3430322T3 (en) 2021-09-13

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