EP1880146B1 - Dispositif d'humidification d'air - Google Patents

Dispositif d'humidification d'air Download PDF

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Publication number
EP1880146B1
EP1880146B1 EP06740998.7A EP06740998A EP1880146B1 EP 1880146 B1 EP1880146 B1 EP 1880146B1 EP 06740998 A EP06740998 A EP 06740998A EP 1880146 B1 EP1880146 B1 EP 1880146B1
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EP
European Patent Office
Prior art keywords
air
rotor
liquid
humidification
humidified
Prior art date
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Application number
EP06740998.7A
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German (de)
English (en)
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EP1880146A1 (fr
Inventor
Reinhard Kalch
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Individual
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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
    • F24F6/06—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving 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
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/34—Heater, e.g. gas burner, electric air heater

Definitions

  • the invention relates to a device for humidification with the features of the introductory part of claim 1.
  • a generic device is from the BE 352813 A known. Similar devices for humidification are off US 2 045 698 A or US Pat. No. 3,730,497 known.
  • the invention is based on the object, a device for humidification of the type described with simple structural means in such a way that an effective humidification can be ensured without having to take a substantial increase in the flow resistance in purchasing.
  • the invention achieves the stated object with a device having the features of claim 1.
  • the inventive measures wetted with the moistening liquid from the liquid bath fins of the rotor in the flow direction and form flow channels for partial flows of the air to be humidified, resulting for the axial flow of air through the housing advantageous flow conditions, especially the flow cross-section of the individual flow channels and the resulting by the individual flow channels total cross section for the air flow through the housing in a simple manner by an appropriate choice of the rotor diameter and depending on the housing diameter can be adapted to each favorable flow conditions.
  • the wettable surface can be adapted to the respective requirements via the axial length of the lamellae, so that constructive influence on the performance of such a humidifier can be taken in many respects.
  • the individual lamellae In order to ensure the wetting of the individual lamellae distributed over the circumference of the rotor during one rotor revolution, the individual lamellae must at least partially submerge in the liquid bath. This means that the fins must extend over a radial region whose outer radius is greater than the distance of the axis of rotation of the rotor from the mirror of the liquid bath.
  • a UV sterilization device is provided in the container for the moistening liquid of the device according to the invention, which can be accommodated due to the axial extent of the container over the rotor length without requiring much space.
  • the rotational speed of the rotor will be changed.
  • the liquid level of the liquid bath in the container is controlled in dependence on the moisture of the air flowing out of the rotor, because in this case the wetting of the fins can be influenced. With increasing liquid level of the liquid thus the humidity is increased and lowered with decreasing level.
  • the slats can be provided with a surface structure. Particularly advantageous results are obtained in this context, if the lamellae have a blade-like cross-section, so that when immersing the lamellae in the liquid bath moistening liquid is distributed by a kind of scooping action on the lamellae.
  • the air to be humidified is removed by the evaporating humidifying liquid evaporation heat, so that the air is cooled. If such air cooling is to be prevented, it is possible to provide for the humidification liquid a heating device which can be regulated as a function of the temperature of the humidifying air, via which additional influence on the air temperature can be taken if not only the heat of evaporation is replaced. In order to limit the absorbed moisture for higher air temperatures, however, it is advisable to preheat the air upstream of the rotor.
  • the rotor with the lamellae, between which the air to be humidified passes axially through the rotor in partial flows, is an advantageous prerequisite for cleaning the air of solid particles when these solid particles accumulate on the lamellae and are washed away in the liquid bath by the lamellae.
  • the rotor can be preceded in the flow direction of the air to be humidified electrodes for ionization of entrained with the air solid particles, so that attracted at a opposite ionized particles to the potential of the lamellae, the ionized solid particles to the lamellae and then with the lamellae in the Liquid bath are registered.
  • electrically non-conductive fins and the moistening liquid can be used as a counter electrode.
  • the illustrated device for air humidification has a housing 1 with two connecting pieces, an inlet pipe 2 and an outlet 3, for incorporation into a flow channel, for example, sucked outside air leads to rooms to be supplied with fresh air.
  • the inlet connection 2 expands to form a cylindrical housing section 4 which receives a rotor 5 with a rotation axis coaxial with the housing section 4.
  • the shaft 6 of this rotor 5 is mounted in radially extending housing struts 7 and is driven by a geared motor 8.
  • the rotor 5 itself comprises a plurality of combined to form a ring, distributed over the rotor circumference fins 9, which extend parallel to the axis of rotation of the rotor 5 and form between them axial flow channels 10 for the air to be humidified.
  • the arrangement is made such that the slats 9 are fixed with their inner longitudinal edges on a support tube 11 and supported with their outer longitudinal edges of outer, the lamellar ring surrounding support rings 12, which, however, need not necessarily be provided.
  • the front side sealed, mounted on the shaft 6 support tube 11 is a distributor cone 13 upstream in the expanding portion of the inlet nozzle 2, so that the sucked outside air distributed over the circumference flows through the rotor 5 in the flow channels 10 between the lamellae 9 and the housing 1 through leaves the outlet 3 again.
  • the cylindrical housing portion 4 forms a container 14 for a liquid bath 15, whose mirror is denoted by 16.
  • the outer radius of the disk rim is greater than the distance of the bath mirror 16 from the axis of rotation of the rotor 5.
  • the rotor 5 therefore immersed in the region of a segment of the disk rim in the liquid bath 15, so that the fins 9 with the Befeuchtungsillonkeit, usually Water, to be wetted. So that moistening liquid can advantageously be taken up by the lamellae 9 from the liquid bath 15, the lamellae 9 are provided with a blade-like bend 17 in the region of their outer longitudinal edge.
  • a heating device 19 For heating the liquid bath 15, a heating device 19 is provided, which is formed in the embodiment of hot water pipes 20 which extend inside and outside of the container 14, but can also be replaced by an electrical resistance heater.
  • the heater 19 is regulated depending on the temperature of the humidified air.
  • a temperature sensor 21 is provided in the outlet port 3, which controls a control 22 with the measured actual value, for example, a mixing valve 23 between a heating flow 24 and a heater return 25 to control a target actual value comparison, that at a desired actual value difference of Actual value is returned to the setpoint.
  • a UV sterilization device 26 is also provided, which extends along the container bottom.
  • the bath level 16 can be kept substantially constant, for example, be achieved by an overflow or a level control, as both are known per se. Particularly advantageous conditions arise, however, if the filling level of the liquid bath is controlled as a function of the humidity of the air flowing out of the rotor 5 for controlling the moisture content of the air.
  • a humidity sensor 27 is provided which acts on the controller 22 with the respective actual value of the humidity.
  • a control valve 28 can be controlled for the liquid feed 29 to regulate the humidity according to a setpoint determining specification on the level height, so the mirror 16 of the bath liquid 15.
  • the air to be humidified flows through the rotor 5 in the axial direction in the flow channels 10 between the lamellae 9 wetted with wetting liquid due to the rotor rotation, wherein due to the large number of slats 9 extending in the axial direction a comparatively large wetting area results which is swept by the air to be humidified, so that the partial flows of the air past the wetted surfaces of the fins 9 can advantageously absorb the evaporating wetting liquid.
  • the heat of evaporation can be made available by the heater 19, which allows a constant air temperature during moisture absorption.
  • the moisture absorption can be controlled with otherwise constant parameters by the rotational speed of the rotor 5, but more advantageous is the control of the filling level of the bath liquid 15th
  • the rotor 5 also represents a good design prerequisite for the separation of solid particles from the air flow to be humidified, because these solid particles can be attracted to the fins 9 with a corresponding ionization and then washed off by the fins 9 in the liquid bath 15. For this purpose, it is only necessary to provide upstream of the rotor 5 in the housing 1 electrodes 30, which provide a sufficient electric field for the ionization of the solid particles. If the lamellar ring of the rotor 5 has a potential that is opposite to that of the ionized particles, then the solid particles are separated from the airflow in the manner described.
  • the voltage supply of the electrodes 30 is in the Fig. 1 indicated by a voltage source 31, which is connected between the electrodes 30 and the electrically conductive with the rotor 5 housing portion 4.

Landscapes

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

Claims (4)

  1. Dispositif d'humidification d'air comportant un boîtier (1) présentant un axe horizontal et parcouru axialement par l'air à humidifier, et un système d'humidification qui comprend un récipient (14) pour un liquide d'humidification et un support rotatif pour le liquide d'humidification, immergé dans le bain de liquide (15) du récipient (14) et s'étendant dans le boîtier (1), le support étant conçu sous la forme d'un rotor (5) ayant un axe de rotation coaxial au boîtier (1) et présentant une pluralité de lamelles (9) réparties sur la périphérie du rotor (5), qui s'étendent parallèlement à l'axe de rotation, forment entre elles des canaux d'écoulement axiaux (10) pour l'air à humidifier et couvrent une zone radiale dont le rayon extérieur est supérieur à la distance entre l'axe de rotation du rotor (5) et le niveau (16) du bain de liquide (15), caractérisé en ce qu'un moyen de stérilisation par UV (26) pour le liquide d'humidification est prévu dans le récipient (14) et que le niveau de remplissage du bain de liquide (15) est commandé en fonction du taux d'humidité de l'air sortant du rotor (5).
  2. Dispositif selon la revendication 1, caractérisé en ce que les lamelles (9) présentent une section transversale en forme de pale.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'un moyen de chauffage (19) réglable en fonction de la température de l'air humidifié est prévu pour le liquide d'humidification.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que le rotor (5) est précédé, dans la direction d'écoulement de l'air à humidifier, d'électrodes (30) destinées à ioniser les particules solides entraînées avec l'air et que les lamelles (9) du rotor (5) et/ou le liquide d'humidification présentent un potentiel opposé à celui des particules ionisées.
EP06740998.7A 2005-05-12 2006-05-10 Dispositif d'humidification d'air Active EP1880146B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0080905A AT501613B1 (de) 2005-05-12 2005-05-12 Vorrichtung zur luftbefeuchtung
PCT/AT2006/000190 WO2006119524A1 (fr) 2005-05-12 2006-05-10 Dispositif d'humidification d'air

Publications (2)

Publication Number Publication Date
EP1880146A1 EP1880146A1 (fr) 2008-01-23
EP1880146B1 true EP1880146B1 (fr) 2017-10-18

Family

ID=36648287

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06740998.7A Active EP1880146B1 (fr) 2005-05-12 2006-05-10 Dispositif d'humidification d'air

Country Status (3)

Country Link
EP (1) EP1880146B1 (fr)
AT (1) AT501613B1 (fr)
WO (1) WO2006119524A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101634530B1 (ko) * 2014-10-16 2016-06-29 엘지전자 주식회사 에어워셔

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE352813A (fr)
US2045698A (en) 1935-10-15 1936-06-30 Christoffersen Viggo Air conditioning device
GB1031522A (en) * 1962-01-29 1966-06-02 Bahnson Co Rotating eliminator
FR1452040A (fr) * 1965-04-24 1966-02-25 Humidificateur d'air
US3730497A (en) 1971-02-03 1973-05-01 West Bend Co Portable humidifier
US3856279A (en) 1972-09-21 1974-12-24 Skuttle Mfg Co Humidifier assembly
FR2304385A1 (fr) * 1975-03-20 1976-10-15 Ferrand Jack Dispositif automatique permettant la filtration de tout fluide gazeux en continu
SU730360A1 (ru) * 1978-07-18 1980-04-30 Грузинский научно-исследовательский институт энергетики и гидротехнических сооружений Ротационный тепломассообменник
DE9304910U1 (de) * 1993-03-31 1993-06-09 Jocham, Gerd, 8961 Sulzberg Luftionisator
DE10253842A1 (de) * 2002-11-14 2004-06-03 Annick Reiner Heilklimagerät

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
WO2006119524A1 (fr) 2006-11-16
AT501613A4 (de) 2006-10-15
AT501613B1 (de) 2006-10-15
EP1880146A1 (fr) 2008-01-23

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