EP0943072B1 - Procede et appareil permettant de ventiler un espace - Google Patents

Procede et appareil permettant de ventiler un espace Download PDF

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Publication number
EP0943072B1
EP0943072B1 EP97947991A EP97947991A EP0943072B1 EP 0943072 B1 EP0943072 B1 EP 0943072B1 EP 97947991 A EP97947991 A EP 97947991A EP 97947991 A EP97947991 A EP 97947991A EP 0943072 B1 EP0943072 B1 EP 0943072B1
Authority
EP
European Patent Office
Prior art keywords
room
sensor
measurement
ventilation valve
ventilation
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.)
Expired - Lifetime
Application number
EP97947991A
Other languages
German (de)
English (en)
Other versions
EP0943072A1 (fr
Inventor
Willem Antonius Boekelman
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.)
Berli Holding BV
Original Assignee
Berli Holding BV
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 Berli Holding BV filed Critical Berli Holding BV
Publication of EP0943072A1 publication Critical patent/EP0943072A1/fr
Application granted granted Critical
Publication of EP0943072B1 publication Critical patent/EP0943072B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F24F11/0001—Control or safety arrangements for ventilation
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • 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
    • 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
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2120/00—Control inputs relating to users or occupants

Definitions

  • the invention relates to a method for ventilating a room, wherein an air passage is opened or closed to a particular degree by means of a ventilation valve in dependence on at least one measurement made by means of at least one sensor.
  • the invention also relates to a device suitable for carrying out such a method.
  • the ventilation valve is moved to a particular position, which position depends on a measurement made by means of a sensor and on a value concerning the temperature within the room determined on the basis of said measurement. Each value is associated with a particular position of the ventilation valve.
  • the object of the present invention is to provide a method wherein the measurement can be made more accurately.
  • This objective is accomplished with the method according to the invention in that, prior to making the measurement by means of the sensor(s), the air passage is closed by means of the ventilation valve, and subsequently the measurement is made by means of the sensor(s) present in the room, after which the ventilation valve is opened or kept in its closed position in dependence on a value ensuing from said measurement.
  • the ventilation valve Since the ventilation valve is closed before the measurement is made, the measurement cannot be influenced by air flowing into the room. Also the air that flowed into the room just before the ventilation valve closed is prevented from influencing the measurement, if a waiting period is observed before the measurement is carried out. During the waiting period said air mixes with the air that was already present in the room.
  • the changing measuring values provide information with regard to the "freshening" characteristics of the room. On the basis of this information an estimation may be made as to the start of a next control cycle.
  • One embodiment of the method according to the invention is characterized in that the position of the ventilation valve that was adjusted after the measurement is maintained for the duration of a predetermined ventilation period, after which the ventilation valve is closed and a next measurement is made, possibly after the waiting period has elapsed.
  • Another embodiment of the method according to the invention is characterized in that a measurement is also made outside the room by means of at least one further sensor, whereby the ventilation valve is open or kept in its closed position in dependence on both measurements.
  • the invention also relates to a device for carrying out the method. It is an object of the present invention to provide a device which can be mounted near an air passage in a simple and compact manner.
  • the device comprises an adjustable ventilation valve for opening or closing an air passage to a particular degree, at least one sensor disposed near said ventilation valve, a regulating unit comprising said sensor(s), and a drive unit to be controlled by said regulating unit, which is connected to said ventilation valve, whereby the regulation unit comprises means to close the air passage by means of the ventilation valve, prior to making measurement by means of the sensor(s), and to subsequently make the measurement by means of the sensor(s), after which the ventilation valve can be opened or kept in its closed position in dependence on a value ensuing from said measurement.
  • Such a device is relatively simple and can be disposed near an air passage.
  • the device may form part of a window casing or a window.
  • Figures 1A and 1B show a longitudinal section and a cross-section respectively of a first embodiment of a device 1 according to the invention.
  • Device 1 comprises a rectangular housing 2, in which a shaft 3 is rotatably supported in bearings 4.
  • Shaft 3 is connected to a ventilation valve (not shown).
  • Shaft 3 is also connected to a lever 5, which is connected to a shifting mechanism 7 with one end, via a pivot 6, and which lever abuts against a leaf spring 9 with an end 8 remote-from said first end.
  • Elongated leaf spring 9 is connected with its ends to opposing walls 10 of housing 2.
  • Shifting mechanism 7 comprises electrically excitable coils and a pin 11, which is capable of movement within said coils and which is pivotally connected to pivot 6 with one end.
  • Pin 11 comprises a soft-iron portion, which can be attracted by the coils. Shifting mechanism 7 is flexibly connected, via a spring, to the walls of housing 2 at and end remote from pivot 6.
  • Device 1 furthermore comprises a sensor 12, a battery holder 13 with a battery present therein, and a loudspeaker 14, which are mounted on a wall 15 of housing 2, which wall is directed towards a room to be ventilated during operation.
  • Device 1 furthermore comprises a sensor 16, which is mounted on a bottom wall 10 of housing 2. During operation sensor 16 is disposed outside the room to be ventilated.
  • Device 1 furthermore comprises a solar cell 17, which is mounted on a wall 18 opposite wall 15. Sensors 12, 16, battery holder 13, loudspeaker 14 and solar cell 17 are electrically connected to a printed circuit board 19 provided with electronic components.
  • device 1 The operation of device 1 is as follows. In the position of shaft 3 shown in Figures 1A and 1B the air inlet (not shown) is closed by means of the ventilation valve connected to the shaft. A regulating unit built up of electronic components is present on the printed circuit board, by means of which the sensors are controlled to make a measurement. Sensors 12 and 16 may for example be used to measure the air humidity, the temperature, the pressure or the CO 2 -content of the air inside and outside the room to be ventilated. Furthermore it is possible to detect the presence of persons in the room to be ventilated by means of sensor 12. Depending on the measurement made by means of the sensors a value is determined, which is compared with a reference value stored on printed circuit board 19.
  • the regulating unit When the reference value is exceeded, the regulating unit will deliver a signal to shifting mechanism 7, which causes pin 11 to be moved in a direction indicated by arrow P1.
  • Lever 5 thereby pivots in a direction indicated by arrow P2, and leaf spring 9 is bent outwards against spring force in a direction indicated by arrow P3.
  • pivot 6 When lever 5 pivots in the direction indicated by arrow P2, pivot 6 is moved over a relatively small distance in a direction opposed to the direction indicated by arrow P3.
  • Shifting mechanism 7 makes a slight pivoting movement about the spring thereby.
  • Pin 11 is moved in the direction indicated by arrow P1 until lever 5 has been pivoted through an angle of 90°. In this position leaf spring 9 urges lever 5 under spring force in a direction opposed to the direction-indicated by arrow P3.
  • the battery may be charged by means of the solar cell.
  • loudspeaker 14 delivers an acoustic signal, which informs a person present in the room that the battery is running down.
  • Device 1 can be mounted in a window casing in a simple manner. Since the energy supply takes place by means of solar cells and batteries, device 1 can be installed at a random location in a building. It is also possible, of course, to connect device 1 to a 220 V power supply, but this has the drawback that separate power supply wires are necessary.
  • Figures 2A, 2B, 2C and 2D show a longitudinal section, a rear view, a front view and a side view respectively of a second embodiment of a device 20 according to the invention.
  • Device 20 comprises a housing 2 disposed near an air passage, in which a shaft 3 is supported in bearings, which shaft is connected to a tiltable ventilation valve (not shown) with one end.
  • Shaft 3 is connected to a motor 22 via a transmission 21.
  • Transmission 21 is provided with a gear 24, which is coupled to an outgoing shaft 23 of motor 22, which gear is in mesh with a gear 25, which is bearing-mounted on shaft 3.
  • Gear 25 is rigidly connected to a gear 26, which is likewise bearing-mounted on shaft 3, which gear is in mesh with a gear 28, which is rotatable about a shaft 27.
  • Gear 28 is rigidly connected to gear 29, which is in mesh with a gear 30, which is rigidly connected to shaft 3.
  • Device 20 comprises sensors 12, which are directed towards the room to be ventilated, as well as sensors 16, which are disposed outside the room to be ventilated.
  • Device 20 is provided with a solar cell 18 on a side located outside the room.
  • Housing 2 is provided on a bottom side with a flange 31, which comprises a U-shaped section 32. An edge of a double-glass window pane 33 can be clamped down in said U-shaped section 32.
  • Sensors 12, 16, solar cell 18, battery 13 and motor 22 are electrically connected to a printed circuit board 19, which inter alia comprises a regulating unit. Stored in said regulating unit is inter alia the control diagram shown in Figure 3, by means of which device 20 is controlled.
  • the regulating unit comprises a control unit 34, by means of which a closing command 36 is transmitted to motor 22 after a ventilation period 35 stored in the regulating unit has elapsed.
  • Motor 22 is activated, whereby shaft 3 is pivoted by means of motor 22, in such a manner that the ventilation valve is moved to a closed position.
  • a closed position signal 37 is transmitted to a time measuring unit 38.
  • time measuring unit 38 delivers a signal to control unit 34, after which measuring commands 40 are delivered to sensors 12, 16 from control unit 34.
  • the values 41 measured by sensors 12, 16 are delivered to control unit 34 and forwarded to a control position unit 42.
  • Stored in said control position unit 42 are tables or formulas, on the basis of which a position of the ventilation valve associated with the measuring data determined by means of the sensors is determined.
  • Motor 22 is controlled on the basis of the desired position of the ventilation valve, as a result of which the ventilation valve is pivoted to the desired position by means of shaft 3.
  • a signal 43 is delivered, which signal is supplied to time measuring unit 38.
  • the ventilation valve remains open for the duration of the ventilation period 35.
  • a signal is transmitted to control unit 34 by time measuring unit 38 again, after which the cycle is repeated again.
  • the ventilation period may have a fixed value, but a ventilation period may also be adjusted in dependence on the measuring data 41 determined by means of sensors 12, 16. If one of the sensors 12 is a motion sensor, it is possible to lengthen/shorten the ventilation period if the presence of a person in the room to be ventilated is detected, and to shorten/lengthen the ventilation period if such presence is not detected.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Fluid Mechanics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Ventilation (AREA)
  • Building Environments (AREA)

Abstract

Cette invention concerne un procédé et un dispositif permettant de ventiler une pièce, lesquels font appel à une voie d'air que l'on ouvre ou que l'on ferme selon un certain degré à l'aide d'un clapet de ventilation et en fonction d'une ou de plusieurs mesures réalisées à l'aide d'un ou de plusieurs capteurs (12, 16). Avant d'effectuer les mesures à l'aide du capteur (12, 16), la voie d'air est fermée par le clapet de ventilation. On observe de préférence une période d'attente prédéterminée, après quoi on effectue les mesures à l'aide du capteur (12, 16) se trouvant dans la pièce. Le clapet de ventilation est ensuite ouvert ou maintenu en position fermée en fonction de la valeur résultant des mesures effectuées.

Claims (15)

  1. Un procédé de ventilation d'une pièce, dans lequel un passage d'air est ouvert ou fermé à un degré particulier au moyen d'une vanne de ventilation en dépendance d'au moins une mesure effectuée au moyen d'au moins un capteur (12, 16), caractérisé en ce que, avant d'effectuer la mesure au moyen du ou des capteurs (12, 16), le passage d'air est fermé au moyen de la vanne de ventilation, et qu'ensuite la mesure est effectuée au moyen du ou des capteurs (12, 16) présents dans la pièce, après quoi la vanne de ventilation est ouverte ou maintenue dans sa position fermée en dépendance d'une valeur résultant de ladite mesure.
  2. Un procédé selon la revendication 1, caractérisé en ce qu'une période d'attente prédéterminée est observée avant qu'une mesure soit effectuée.
  3. Un procédé selon la revendication 1 ou 2, caractérisé en ce que la position de la vanne de ventilation qui a été réglée après la mesure est maintenue pendant la durée d'une période de ventilation prédéterminée, après quoi la vanne de ventilation est fermée et une nouvelle mesure est effectuée, éventuellement après que la période d'attente s'est écoulée.
  4. Un procédé selon la revendication 1, 2 ou 3, caractérisé en ce qu'une mesure est également effectuée à l'extérieur de la pièce au moyen d'au moins un capteur supplémentaire (16), de sorte que la vanne de ventilation est ouverte ou maintenue dans sa position fermée en dépendance de deux mesures.
  5. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que la période de ventilation est plus longue que la période d'attente.
  6. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'humidité de l'air de la pièce est mesurée au moyen dudit capteur.
  7. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que le niveau de CO2 de la pièce est mesuré au moyen dudit capteur.
  8. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un mouvement dans la pièce est détecté au moyen dudit capteur.
  9. Un procédé selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un son à l'intérieur et à l'extérieur de la pièce est mesuré au moyen des capteurs, après quoi il est établi que la pièce est en cours d'utilisation si le niveau du son à l'intérieur de la pièce est plus élevé qu'on s'y attendrait sur la base du niveau du son à l'extérieur de la pièce.
  10. Un dispositif (1) approprié pour mettre en oeuvre le procédé selon l'une quelconque des revendications précédentes, le dispositif (1) comprenant une vanne de ventilation réglable pour ouvrir ou fermer un passage d'air à un degré particulier, au moins un capteur (12, 16) disposé près de ladite vanne de ventilation, une unité de régulation (34-42) comprenant le ou lesdits . capteurs, et une unité d'entraínement (22) devant être commandée par ladite unité de régulation, laquelle est reliée à ladite vanne de ventilation, caractérisé en ce que l'unité de régulation comprend des moyens (34) pour fermer le passage d'air au moyen de la vanne de ventilation, avant d'effectuer une mesure au moyen du ou des capteurs, et pour effectuer ensuite la mesure au moyen du ou des capteurs (12, 16), après quoi la vanne de ventilation peut être ouverte ou maintenue dans sa position fermée en dépendance d'une valeur résultant de ladite mesure.
  11. Un dispositif selon la revendication 10, caractérisé en ce que le ou lesdits capteurs, ladite unité de régulation (34-42) et ladite unité d'entraínement sont présentes dans un boítier commun proche de la vanne de ventilation.
  12. Un dispositif selon la revendication 10 ou 11, caractérisé en ce que le dispositif comprend une source d'énergie électrique présente à l'intérieur dudit boítier.
  13. Un dispositif selon l'une quelconque des revendications 10 à 12 précédentes, caractérisé en ce que ladite source d'énergie électrique comprend une pile solaire et/ou une batterie.
  14. Un dispositif selon l'une quelconque des revendications 10 à 13 précédentes, caractérisé en ce que ledit dispositif comprend un premier capteur, lequel est présent à l'intérieur de la pièce devant être ventilée pendant le fonctionnement, et un second capteur, lequel est présent à l'extérieur de la pièce devant être ventilée.
  15. Un dispositif selon l'une quelconque des revendications 10 à 14 précédentes, caractérisé en ce que le dispositif peut être monté près d'une ouverture . de ventilation prévue dans un dormant de fenêtre, un mur, un toit ou un conduit d'air.
EP97947991A 1996-11-27 1997-11-25 Procede et appareil permettant de ventiler un espace Expired - Lifetime EP0943072B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL1004626 1996-11-27
NL1004626A NL1004626C2 (nl) 1996-11-27 1996-11-27 Werkwijze voor het ventileren van een ruimte alsmede inrichting geschikt voor het uitvoeren van een dergelijke werkwijze.
PCT/NL1997/000644 WO1998023904A1 (fr) 1996-11-27 1997-11-25 Procede et appareil permettant de ventiler un espace

Publications (2)

Publication Number Publication Date
EP0943072A1 EP0943072A1 (fr) 1999-09-22
EP0943072B1 true EP0943072B1 (fr) 2002-03-06

Family

ID=19763941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97947991A Expired - Lifetime EP0943072B1 (fr) 1996-11-27 1997-11-25 Procede et appareil permettant de ventiler un espace

Country Status (6)

Country Link
EP (1) EP0943072B1 (fr)
AU (1) AU5415298A (fr)
DE (1) DE69710920T2 (fr)
DK (1) DK0943072T3 (fr)
NL (1) NL1004626C2 (fr)
WO (1) WO1998023904A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173185A1 (fr) * 2014-05-12 2015-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Dispositif de commande d'un dispositif de ventilation d'un local et procédé de ventilation d'un local

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10201950A1 (de) * 2002-01-19 2003-07-31 Paragon Ag Verfahren zur Belüftung von Räumen
DE102005027056B4 (de) * 2005-06-10 2007-02-15 Elsner Elektronik Gmbh Steuerung einer Klimaanlage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK112475B (da) * 1965-11-10 1968-12-16 Dansk Akkumulator & Elektromot Anlæg til ventilation af lokaler, navnlig stalde.
US4243174A (en) * 1979-09-27 1981-01-06 Moeller Chris R Method and apparatus for control of air flow to a plurality of rooms
US5462485A (en) * 1993-12-03 1995-10-31 Extraction Systems, Inc. Controlling air quality

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015173185A1 (fr) * 2014-05-12 2015-11-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. Dispositif de commande d'un dispositif de ventilation d'un local et procédé de ventilation d'un local

Also Published As

Publication number Publication date
DE69710920T2 (de) 2002-09-19
DK0943072T3 (da) 2002-04-29
DE69710920D1 (de) 2002-04-11
AU5415298A (en) 1998-06-22
NL1004626C2 (nl) 1998-05-28
EP0943072A1 (fr) 1999-09-22
WO1998023904A1 (fr) 1998-06-04

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