EP3508794B1 - Dispositif d'humidification d'air et mèthode d'humidification d'air - Google Patents

Dispositif d'humidification d'air et mèthode d'humidification d'air Download PDF

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Publication number
EP3508794B1
EP3508794B1 EP18150372.3A EP18150372A EP3508794B1 EP 3508794 B1 EP3508794 B1 EP 3508794B1 EP 18150372 A EP18150372 A EP 18150372A EP 3508794 B1 EP3508794 B1 EP 3508794B1
Authority
EP
European Patent Office
Prior art keywords
air
water
humidification apparatus
air humidification
medium
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.)
Active
Application number
EP18150372.3A
Other languages
German (de)
English (en)
Other versions
EP3508794A1 (fr
Inventor
Roland Lüthi
Urs Bédert
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.)
Bedert AG
Original Assignee
Bedert AG
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Publication date
Application filed by Bedert AG filed Critical Bedert AG
Priority to EP18150372.3A priority Critical patent/EP3508794B1/fr
Publication of EP3508794A1 publication Critical patent/EP3508794A1/fr
Application granted granted Critical
Publication of EP3508794B1 publication Critical patent/EP3508794B1/fr
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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
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/08—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using heated wet elements

Definitions

  • the present invention relates to an air humidification device. Furthermore, the present invention relates to a method for air humidification.
  • Air humidification devices are known in which a humidification medium is arranged in an air stream and the air stream is humidified by means of water trickling down in the humidification medium and/or by spraying the humidification medium.
  • Such known air humidification devices have proven themselves. However, when they are used, a considerable amount of wasted water is created which cannot be fed into the air stream and which must be collected and drained away using a water bath. Accordingly, a larger amount of fresh water must be fed in for humidification or a return of wasted water to the spray nozzles must be provided.
  • the water bath can cause hygiene problems.
  • the presence of a water bath means that the air stream must be guided horizontally over the water bath through the humidification medium, which limits the installation options for the air humidification device.
  • a humidifying medium is partially immersed in a water bath and absorbs water there, which is then conveyed into an air stream by rotating the humidifying medium.
  • the water bath can cause hygiene problems.
  • the presence of a water bath means that the air stream must be guided horizontally over the water bath through the humidifying medium, which limits the installation options for the air humidification device.
  • EP1 519 118 discloses an air humidification device according to the preamble of claim 1.
  • the present invention is therefore based on the object of creating an improved air humidification device which reduces or does not have the aforementioned disadvantages.
  • an air humidification device which can be installed vertically in a ventilation system, comprising an air duct section through which flow can pass vertically and at least one hydrophilic or hydrophobic, air-permeable humidifier medium arranged in the air duct section essentially perpendicular to its longitudinal axis, which is wetted with water by means of a water distribution, that the water supply is regulated according to the measured value of a return air sensor which is located in the return air flow, that a humidity sensor measures a supply air humidity in order to regulate the maximum water supply, wherein the amount of water to be applied is regulated in such a way that only as much water is applied as is necessary for humidifying the humidifier medium and no water escapes from the bottom of the humidifier medium.
  • the object of the present invention is also achieved by a method for air humidification by means of such an air humidification device according to the invention.
  • FIG 1 shows a first preferred embodiment of the invention, with an air humidification device with air direction from bottom to top.
  • a heater (6) is first drawn, which preheats the air to a predetermined temperature.
  • a temperature sensor (8) is used, which measures the air temperature and transmits this information to a control (not shown) which regulates the heater (6).
  • the humidifying medium (2) is in the embodiment in Figure 1 from bottom to top and the air flowing through is humidified. At the same time, the air is cooled by this humidification.
  • a water distributor (3) is used to distribute the required water to the humidification medium (2).
  • the water supply (4) is regulated according to the measured value of a return air sensor (9) which is located in the return air flow.
  • a humidity sensor (7) advantageously measures the supply air humidity, which is used to regulate the maximum water supply.
  • FIG. 2 shows a second preferred embodiment of the invention, with an air humidification device with air direction from top to bottom.
  • a heater (6) is also shown first, which preheats the air to a predetermined temperature.
  • a temperature sensor (8) is used again, which measures the temperature and transmits this information to a control (not shown), which then regulates the heater (6).
  • the humidifying medium (2) is in the embodiment in Figure 2 from top to bottom and the air flowing through is humidified. At the same time, the air is cooled by this humidification.
  • a water distributor (3) is also used to distribute the required water to the humidifier medium (2).
  • the water supply (4) is also regulated here according to the measured value of a return air sensor (9), which is located in the return air flow.
  • a humidity sensor (7) advantageously measures the supply air humidity, which is used to regulate the maximum water supply.
  • FIG 3 shows a third preferred embodiment of the invention, which can be used if the return air is to be humidified and then flows through a hygrophilic heat exchanger, which transfers the moisture to the supply air.
  • a return air sensor (9) is first drawn, which is used to regulate the water supply (4).
  • the heater (6) which also preheats the air, is regulated to a temperature which is measured by the temperature sensor (8).
  • the humidification medium (2) flows through from top to bottom and humidifies the air. At the same time, the air is This humidification is cooled.
  • the water distribution (3) also distributes the water on the humidification medium (2) and the humidity sensor (7) is used to limit the maximum supply air humidity.
  • FIG 4 shows a fourth preferred embodiment of the invention, which can be used if the return air is to be cooled and then flows through a non-hygrophilic heat exchanger, which transfers the cooling to the supply air (so-called adiabatic return air cooling).
  • the humidification medium (2) is flowed through from top to bottom and the air is humidified in the process. At the same time, the air is also cooled by the humidification.
  • the water distribution (3) again distributes the water on the humidification medium (2) and the humidity sensor (7) is used to limit the water supply (4) and the maximum humidity.
  • the water distributor (3) can have an atomizing device or a sprinkling device.
  • the humidifying medium (2) can be circular-cylindrical or rectangular. It is also conceivable to use several humidifying media (2) instead of just one, which are advantageously arranged one behind the other in the air duct section (1) in the direction of air flow.
  • the heater (6) can be an electric or a hot water heater. An air flow sensor installed before or after the humidifying medium (2) can prevent humidification from occurring without air flow.
  • a safety tray can also be provided, which can collect the water, especially in the event of a malfunction of the humidification device.
  • This safety tray can have a water detection device, which In an emergency, further humidification is prevented and/or an alarm is triggered.
  • the safety tray can also be advantageously constructed in such a way that air can flow through this safety tray.

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

Claims (14)

  1. Dispositif d'humidification d'air (LB), pouvant être installé verticalement dans un système de ventilation, comprenant une section de conduite de l'air (1) pouvant être traversée verticalement et au moins un humidificateur d'air (2) hydrophile ou hydrophobe, perméable à l'air qui est agencé dans la section de conduite de l'air (1) substantiellement perpendiculaire à son axe longitudinal et qui est humidifié avec de l'eau au moyen d'un distributeur d'eau (3), et un capteur d'humidité (7) mesurant l'humidité de l'air soufflé afin de réguler l'approvisionnement maximal en eau
    caractérisé en ce que
    l'approvisionnement en eau (4) est régulé selon la valeur mesurée par un capteur de retour d'air (9) qui est situé dans le flux de retour d'air,
    et que la quantité d'eau à appliquer est contrôlée de telle sorte que seulement la quantité d'eau nécessaire à l'humidification de l'humidificateur d'air (2) est appliquée, et que l'eau ne s'échappe pas par le bas de l'humidificateur d'air (2).
  2. Dispositif d'humidification d'air (LB) selon la revendication 1, la distribution d'eau (2) comprenant un dispositif de pulvérisation ou d'aspersion.
  3. Dispositif d'humidification d'air (LB) selon la revendication 1 ou 2, l'humidificateur d'air (2) étant de forme circulaire-cylindrique ou rectangulaire.
  4. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 3 comprenant une pluralité d'humidificateurs d'air (2) qui sont agencés l'un derrière l'autre dans la section de conduite de l'air (1) selon la direction du flux d'air.
  5. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 4, un chauffe-eau (6) étant prévu avant ou après l'humidificateur d'air (2).
  6. Dispositif d'humidification d'air (LB) selon la revendication 5, le chauffe-eau (6) étant un chauffe-eau électrique ou un réchauffeur d'eau chaude.
  7. Dispositif d'humidification d'air (LB) selon la revendication 5 ou 6, un capteur de température (8) étant prévu pour régler la puissance de chauffe du chauffe-eau (6).
  8. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 7, un capteur de débit d'air étant prévu avant ou après l'humidificateur d'air (2), et qui empêche l'humidification sans flux d'air.
  9. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 8, un bac de sécurité étant prévu pour capter l'eau en cas de dysfonctionnement du dispositif d'humidification de l'air (LB).
  10. Dispositif d'humidification d'air (LB) selon la revendication 9, le bac de sécurité possédant un dispositif de détection de l'eau qui empêche une humidification supplémentaire et/ou le déclenchement d'une alarme.
  11. Dispositif d'humidification d'air (LB) selon la revendication 9 ou 10, le bac de sécurité étant conçu de telle manière que l'air puisse circuler dans le bac de sécurité.
  12. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 11, un filtre à air étant installé avant ou après l'humidificateur (2), lequel filtre à air recueillant les poussières provenant de l'humidificateur (2).
  13. Dispositif d'humidification d'air (LB) selon l'une des revendications 1 à 12, dans lequel, afin de contrôler l'humidification du flux d'air, l'humidité après l'humidificateur (2) est mesurée par un capteur d'humidité (7) et/ou par un capteur de reprise d'air ou d'humidité ambiante (9).
  14. Méthode d'humidification d'air au moyen d'un dispositif d'humidification de l'air (LB) selon l'une des revendications 1 à 13.
EP18150372.3A 2018-01-04 2018-01-04 Dispositif d'humidification d'air et mèthode d'humidification d'air Active EP3508794B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP18150372.3A EP3508794B1 (fr) 2018-01-04 2018-01-04 Dispositif d'humidification d'air et mèthode d'humidification d'air

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP18150372.3A EP3508794B1 (fr) 2018-01-04 2018-01-04 Dispositif d'humidification d'air et mèthode d'humidification d'air

Publications (2)

Publication Number Publication Date
EP3508794A1 EP3508794A1 (fr) 2019-07-10
EP3508794B1 true EP3508794B1 (fr) 2024-04-10

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ID=60923423

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Application Number Title Priority Date Filing Date
EP18150372.3A Active EP3508794B1 (fr) 2018-01-04 2018-01-04 Dispositif d'humidification d'air et mèthode d'humidification d'air

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EP (1) EP3508794B1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL143271A0 (en) * 2001-05-21 2002-04-21 Electra Consumer Products Ltd Air conditioner humidifier
EP1519118B1 (fr) * 2003-09-18 2007-08-08 Martin Dr.-Ing. Möritz Méthode et appareil pour humidifier l'air de locaux et de véhicules
CH712107A1 (de) * 2016-02-10 2017-08-15 Condair Group Ag Luftbefeuchtungsvorrichtung und Verfahren zur Luftbefeuchtung.

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EP3508794A1 (fr) 2019-07-10

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