EP2505930A1 - Dispositif de ventilation - Google Patents

Dispositif de ventilation Download PDF

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Publication number
EP2505930A1
EP2505930A1 EP12161646A EP12161646A EP2505930A1 EP 2505930 A1 EP2505930 A1 EP 2505930A1 EP 12161646 A EP12161646 A EP 12161646A EP 12161646 A EP12161646 A EP 12161646A EP 2505930 A1 EP2505930 A1 EP 2505930A1
Authority
EP
European Patent Office
Prior art keywords
valve
ventilation device
air flow
installation position
flow duct
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.)
Granted
Application number
EP12161646A
Other languages
German (de)
English (en)
Other versions
EP2505930B1 (fr
Inventor
Rino Francky De Meulenaere
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.)
Renson Ventilation NV
Original Assignee
Renson Ventilation NV
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 Renson Ventilation NV filed Critical Renson Ventilation NV
Publication of EP2505930A1 publication Critical patent/EP2505930A1/fr
Application granted granted Critical
Publication of EP2505930B1 publication Critical patent/EP2505930B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/75—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity for maintaining constant air flow rate or air velocity
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/745—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity the air flow rate increasing with an increase of air-current or wind pressure

Definitions

  • the present invention relates to a ventilation device, comprising an air flow duct and comprising a self-regulating valve which is arranged in the air flow duct so as to be tiltable between an open position and a closed position in order to regulate the air flow rate through this air flow duct depending on the pressure difference across the valve, in which said valve is arranged on one or more supporting bodies in the air flow duct in order for it to be positioned in the air flow duct.
  • the pressure differences across components of buildings, including ventilation facilities, are subject to constant change due to variations in temperature differences, wind speeds and wind directions, and the way in which the building is used (opening of doors and windows, use of ventilation devices).
  • the air flow rate of conventional ventilation devices is constantly changing.
  • Certain ventilation devices are provided with an automatic adjustment of the air flow opening (cross section of the passage) which consequently also adjusts the air flow rate depending on the pressure difference across the ventilation grille (the ventilation device).
  • Such grilles are known, inter alia, from NL 1 025 600 C2 , EP 0 606 945 A1 , NL 1 014 499 C , EP 2 051 020 A1 , EP 0 362 913 A1 , EP 0503 722 A1 , NL 9 102 132 A , etc. and are usually referred to as self-regulating.
  • such self-regulating ventilation grilles may be provided with a self-regulating valve which automatically changes the cross section of the passage or the air flow opening of a ventilation device when the pressure difference across the ventilation device changes.
  • the present invention relates to such a ventilation device which operates without an actuator or motor (with an autonomous self-regulating valve).
  • the self-regulating valve ensures a more or less constant air flow rate at increasing pressure difference.
  • the nominal pressure difference at which the air flow rate has to be kept constant in order to define the ventilation device as self-regulating differs from country to country due to different standards or legislation; e.g. in the Netherlands from 1 Pa, in Belgium from 2 Pa. In The Netherlands, the Building Decree stipulates that the air flow rate in a self-regulating ventilator should not differ by more than 20% from the nominal flow rate at 1 Pa, and this across a pressure range of 1 to 25 Pa. In Belgium, a similar stipulation applies with respect to the nominal air flow rate at 2 Pa and, furthermore, a distinction is made between classes with a certain degree of adjustment depending on the pressure difference. Except for the difference in nominal air flow rate, the requirements for the most stringent class in Belgium correspond to those of the Netherlands.
  • a ventilation device comprising an air flow duct and comprising a self-regulating valve which is arranged in the air flow duct so as to be tiltable between an open position and a closed position in order to regulate the air flow rate through this air flow duct depending on the pressure difference across the valve, in which this valve is arranged on one or more supporting bodies in the air flow duct in order for it to be positioned in the air flow duct in such a manner that essentially a line contact results between the valve and the one or more supporting bodies, in which the ventilation device can be installed in an installation position between a first outer installation position and a second outer installation position, in which the main direction of the flow of the air in the air flow duct is at an angle of inclination with respect to the main direction of the flow of the air in the air flow duct in the first outer installation position, in which the centre of gravity of the valve is situated next to said line contact at each installation position, viewed in the main direction of the flow of the air in the air flow duct, and in
  • the self-regulating function of the valve can be retained for different installation positions at different angles of inclination of the ventilation body.
  • the range of installation positions will be greater or smaller (the angle of inclination between the first outer installation position and the second outer installation position is then greater or smaller).
  • the line contact assumes different positions when tilting the valve between the open position and the closed position.
  • the valve comprises several ribs which extend essentially in the longitudinal direction of the valve and one or more cavities which are delimited at least partly by the ribs.
  • the one or more supporting bodies in such embodiments comprise several cavities, corresponding to the ribs of the valve and one or more ribs which delimit the cavities at least partly, corresponding to the one or more cavities of the valve.
  • the ribs of the valve and/or of the one or more supporting bodies preferably determine the various positions of the line contact.
  • the valve comprises one or more hook elements, with the ribs and the one or more cavities of the valve being provided in said one or more hook elements.
  • These hook elements may, more specifically, be provided locally.
  • the one or more supporting bodies are also essentially hook-shaped.
  • the one or more hook elements of the valve then preferably hook over the one or more essentially hook-shaped supporting bodies to arrange the valve on the one or more supporting bodies.
  • These hook shapes provide additional security in order to ensure that the valve can always return to its correct position on the one or more supporting bodies.
  • These hook shapes may partly prevent that, for example when a sudden gust of wind passes through the air flow duct, the valve will be lifted off the one or more supporting bodies on account of this gust of wind.
  • the valve is designed as one or more injection mouldings.
  • valve may be designed as different valve parts which are coupled together and adjoin one another in the longitudinal direction.
  • valve By designing the valve as an injection moulding, it is possible to produce hook elements with ribs and cavities in a simpler manner than with the conventional techniques of producing valves for ventilation devices.
  • a valve when such a valve is designed as an injection moulding, its length is more limited than the standard lengths for valves in similar ventilation devices.
  • valve parts In order to be able to couple these valve parts to one another in a simple manner, these valve parts, on the sides by means of which they adjoin one another, may be provided with a pin or a hole which corresponds to the pin, respectively, so that the valve parts can be coupled together by inserting the pin into the corresponding hole.
  • a particular ventilation device according to the present invention can be installed, in its first outer installation position, in a roof having a roof pitch of virtually 30°.
  • a further particular ventilation device according to the present invention can be installed, in its second outer installation position, in a roof having a roof pitch of virtually 60°.
  • Ventilation grilles according to the present invention are designed to be installed in a pitched roof for supplying air from the environment to spaces under this roof.
  • the illustrated ventilation grilles in each case comprise an air flow duct (1).
  • a self-regulating valve (2) is arranged in this air flow duct (1) for regulating the air flow rate between an inlet (9) and an outlet (10) of this air flow duct (1) depending on the pressure difference across the valve (2).
  • the air flow duct (1) comprises a supporting body (3) on which the valve (2) is arranged by means of hook elements (8) in such a manner that essentially a line contact (A) results between the valve (2) and the supporting body (3).
  • the valve (2) is tiltable in the air flow duct (1) between an open position, in which the air flow duct (1) is open virtually completely and a closed position, in which the air flow duct (1) is closed virtually completely by means of this valve (2).
  • the ventilation grilles according to the present invention can be installed in an installation position between a first outer installation position and a second outer installation position.
  • Fig. 1a the first illustrated embodiment of a ventilation grille according to the present invention is shown in its first outer installation position, whereas this embodiment is shown in its second outer installation position in Fig. 3a .
  • the second illustrated embodiment of a ventilation grille according to the present invention is shown in its first outer installation position in Fig. 4
  • this embodiment is shown in its second outer installation position in Fig. 6 .
  • the ventilation grille is in the second outer installation position at a maximum angle of inclination (H) with respect to the first outer installation position.
  • H maximum angle of inclination
  • the first and the second embodiment are shown in an installation position which is virtually in the middle between the first outer installation position and the second outer installation position.
  • the ventilation grille In this central installation position, the ventilation grille is in each case virtually below half the maximum angle of inclination (H/2) with respect to the first outer installation position, whereas the ventilation grille is below half the maximum angle of inclination (H/2) with respect to the central installation position in the second outer installation position.
  • the valve (2) is designed in such a way that the centre of gravity (Z) of this valve (2) is situated next to said line contact (A) in each installation position.
  • Figs. 1b, 2b and 3b for the first embodiment
  • Figs. 4 to 9b for the second embodiment, in which case it can be seen in each case that the distance (X, X', Xmin, Xmax) between the projection of the centre of gravity (Z) of the valve (2) on a horizontal plane through the line contact (A) and the line contact (A) in each case differs from 0.
  • the distance (X) between the line contact (A) and the centre of gravity (Z) of the valve (2) in the central installation position is furthermore in each case chosen such that when the pressure difference across the valve (2) decreases, this valve (2) will tilt to its open position.
  • the supporting body (3) is in each case provided at the top side of the air flow duct (1) and the valve (2) arranged thereon can be tilted counterclockwise from its open position to its closed position.
  • the inlet (9) of the air flow duct (1) is situated on the left and the outlet (10) on the right.
  • the centre of gravity (Z) is then situated to the right of the line contact (A). If the valve (2) were to be designed such that it could tilt clockwise from its open position to its closed position, the centre of gravity (Z) would have to be situated to the left of the line contact (A).
  • the supporting body (3) could also be installed, for example on the bottom side of the air flow duct (1).
  • the supporting body (3) is designed to be essentially hook-shaped and the valve (2) is also essentially hook-shaped, with the valve (2) being hooked over the hook-shaped supporting body (3).
  • the hook shape ensures that the valve (2) will automatically engage on the supporting body (3) back in the correct position on account of the force of gravity.
  • the valve (2) is to this end provided with hook elements (8) which are shorter than the length of the valve (2).
  • each of these hook elements (8) is provided with four ribs (4) which extend essentially in the longitudinal direction of the valve (2) and delimit three cavities.
  • the supporting body (3) is provided with four cavities which correspond to the ribs (4) of the valve (2) and with three ribs (5) which correspond to the cavities of the valve (2).
  • a line contact (A) is produced in this manner, in which case this line contact (A) is determined by the ribs (4, 5) of the valve (2) and the supporting body (3). In this way, the line contact (A) assumes different positions when the valve (2) tilts between its open position and its closed position, as is illustrated in Figs. 7b and 9b .
  • valve (2) Due to the ribs (4) of the valve (2) and the ribs (5) of the supporting body (3) and the corresponding cavities, the tendency of the valve (2) to slide across the supporting body during its tilting or rolling movement is reduced. Even if the valve (2) would like to slide, for example on account of a sudden change in pressure across the valve (2), this valve (2) can automatically return to its correct position due to these ribs (4, 5) and cavities and on account of the force of gravity.
  • the self-regulating valve (2) of the second embodiment is composed of several valve parts (2a, 2b), which are coupled to one another in such a manner that they adjoin one another in the longitudinal direction.
  • the valve (2) By designing the valve (2) as an injection moulding, it is easier to produce local hook elements (8) with ribs (4) and cavities than when using conventional techniques for producing valves (2) for ventilation grilles.
  • the length is more limited than the standard lengths for valves (2) in similar ventilation devices.
  • valve (2) which is produced by injection-moulding across the entire standard length of ventilation devices
  • these valve parts (2a, 2b) are, on the sides by means of which they adjoin one another, provided with a pin (6) or a hole (7) which corresponds to the pin (6), respectively, so that the valve parts (2a, 2b) can be coupled together by inserting the pin (6) into the corresponding hole (7).
  • valve (2) from the first embodiment is simpler and may be produced, for example, by extrusion in a conventional manner.
  • valves (2) are in each case of rigid design. In alternative embodiments, these valves (2) could, for example, also be at least partly made of soft material in order to prevent banging, for example. Valves (2) could also, viewed in cross section, consist of several parts and could, for example, be made from heavier and lighter parts in order to achieve a satisfactory positioning of the centre of gravity (Z).

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
EP20120161646 2011-03-29 2012-03-28 Dispositif de ventilation Active EP2505930B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE2011/0191A BE1019893A3 (nl) 2011-03-29 2011-03-29 Ventilatie-inrichting.

Publications (2)

Publication Number Publication Date
EP2505930A1 true EP2505930A1 (fr) 2012-10-03
EP2505930B1 EP2505930B1 (fr) 2015-05-06

Family

ID=45003109

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20120161646 Active EP2505930B1 (fr) 2011-03-29 2012-03-28 Dispositif de ventilation

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Country Link
EP (1) EP2505930B1 (fr)
BE (1) BE1019893A3 (fr)
DK (1) DK2505930T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111238062A (zh) * 2019-02-12 2020-06-05 上海美福新能源有限公司 应用于倾斜屋顶的太阳能装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105313A5 (fr) * 1970-08-13 1972-04-28 Ogny Jean D
EP0362913A1 (fr) 1988-09-06 1990-04-11 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Registre à réglage automatique
NL9102132A (nl) 1990-12-20 1992-07-16 Heycop Beheer Bv Zelfregelende debietregelklep voor een ventilatiesysteem.
EP0503722A1 (fr) 1991-03-05 1992-09-16 Compri-Aluminium B.V. Grille de ventilation à réglage automatique
EP0606945A1 (fr) 1993-01-15 1994-07-20 Compri-Aluminium B.V. Grille de ventilation à réglage automatique
NL1014499C2 (nl) 1999-04-08 2000-10-10 Remi Emiel Van Parys Zelfregelend verluchtingsrooster.
NL1025600C2 (nl) 2004-02-27 2005-08-30 Renson Ventilation N V Inrichting voor het regelen van het luchtdebiet in een ventilatie-inrichting.
NL1026034C2 (nl) * 2004-04-23 2005-10-25 Vkr Holding As Ventilatie-inrichting.
EP2051020A1 (fr) 2007-10-16 2009-04-22 Demconstruct sarl Dispositif de ventilation

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2105313A5 (fr) * 1970-08-13 1972-04-28 Ogny Jean D
EP0362913A1 (fr) 1988-09-06 1990-04-11 Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno Registre à réglage automatique
NL9102132A (nl) 1990-12-20 1992-07-16 Heycop Beheer Bv Zelfregelende debietregelklep voor een ventilatiesysteem.
EP0503722A1 (fr) 1991-03-05 1992-09-16 Compri-Aluminium B.V. Grille de ventilation à réglage automatique
EP0606945A1 (fr) 1993-01-15 1994-07-20 Compri-Aluminium B.V. Grille de ventilation à réglage automatique
NL1014499C2 (nl) 1999-04-08 2000-10-10 Remi Emiel Van Parys Zelfregelend verluchtingsrooster.
NL1025600C2 (nl) 2004-02-27 2005-08-30 Renson Ventilation N V Inrichting voor het regelen van het luchtdebiet in een ventilatie-inrichting.
EP1568947A1 (fr) * 2004-02-27 2005-08-31 Renson Ventilation NV Dispositif pour la régulation du débit d'air d'un dispositif de ventilation
NL1026034C2 (nl) * 2004-04-23 2005-10-25 Vkr Holding As Ventilatie-inrichting.
EP2051020A1 (fr) 2007-10-16 2009-04-22 Demconstruct sarl Dispositif de ventilation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111238062A (zh) * 2019-02-12 2020-06-05 上海美福新能源有限公司 应用于倾斜屋顶的太阳能装置

Also Published As

Publication number Publication date
EP2505930B1 (fr) 2015-05-06
DK2505930T3 (en) 2015-06-08
BE1019893A3 (nl) 2013-02-05

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