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EP3497375B1 - Climatiseur pour humidifier de l'air ambiant avec de l'eau minéralisée - Google Patents

Climatiseur pour humidifier de l'air ambiant avec de l'eau minéralisée Download PDF

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Publication number
EP3497375B1
EP3497375B1 EP17758451.3A EP17758451A EP3497375B1 EP 3497375 B1 EP3497375 B1 EP 3497375B1 EP 17758451 A EP17758451 A EP 17758451A EP 3497375 B1 EP3497375 B1 EP 3497375B1
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EP
European Patent Office
Prior art keywords
air
water
flow
evaporator
evaporator block
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EP17758451.3A
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German (de)
English (en)
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EP3497375A1 (fr
Inventor
Markus PFIFFNER
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Beurer GmbH
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Beurer GmbH
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    • 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
    • F24F6/043—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with self-sucking action, e.g. wicks

Definitions

  • the present invention relates to a device for humidifying indoor air according to the preamble of claim 1.
  • a device for humidifying room air with mineralized, in particular sea salt-containing water, with an air inlet, a fan arranged at the air inlet to generate an air flow, a water container open at the top and a humidification device through which the air flow can flow and is arranged in the direction of flow, is available the DE 10 2014 204 916 A1 known.
  • the marine air conditioning device described there has, as a humidification device, a grading unit made of a non-absorbent material, through which water flows vertically and the air flow flows through horizontally. For this purpose, the water is pumped into a distribution trough from which it flows over the grading unit.
  • a medical air conditioning device which has, as a humidification device, a spray device for generating a mist of sea water and a fan for generating an air flow that traverses the spray mist and takes it into the outside space.
  • the main disadvantage of this is that spraying salt-containing water leads to salt incrustation inside the device and that the salt-containing water Spray mist can attack and damage metallic and electrical components of the device.
  • a medical air conditioning device in which an air flow generated by a fan is passed through a curtain of water drops and thus humidified. This device also requires a pump, which can fail due to constant contact with salt water.
  • a medical air conditioning device in which humidification of an air stream takes place by means of a water-soaked fleece through which the air stream flows.
  • a humidifier in which an air stream is humidified by means of an air-permeable medium such as a porous sponge which is immersed in a water-filled tub and rotates slowly.
  • an air-permeable medium such as a porous sponge which is immersed in a water-filled tub and rotates slowly.
  • the evaporation rate is relatively low.
  • a humidifier is described whose evaporator unit is supplied with an air flow generated by a fan and can be sterilized.
  • the evaporator unit draws water from a water bath in which silver ions, which have a sterilizing effect, are dissolved electrolytically.
  • the water enriched with silver ions soaks the evaporator unit, which is irradiated by a UV lamp, which further promotes the sterilizing effect.
  • the JP S54 13141 A describes a compact air humidifier for automobiles with the features of the preamble of claim 1, in which water is sucked in from a tank via a plurality of capillary tubes immersed in the tank.
  • the capillary tubes open below a moisture release cylinder, in which a fan sucks in air together with water drops released by the capillary tubes and nebulizes them in a gap between the moisture release cylinder and the fan housing.
  • the present invention has set itself the task of providing an air humidification device for operation with mineralized water, which on the one hand is robust and durable, and on the other hand enables a higher evaporation performance.
  • the task is solved by the features of claim 1. Advantageous refinements can be found in the dependent claims.
  • the object is achieved according to the invention in that the humidification device is designed as a capillary-acting evaporator block provided with flow openings, which is immersed in the water container.
  • the capillary-acting evaporator block which is immersed in the water tank and which automatically fills itself with water, there is no need for a pump, so that a common source of error for device failure can be eliminated and the device can therefore be built to be more robust, more durable and, above all, more cost-effective can.
  • the flow openings cause the evaporator block to have a reduced flow resistance to the air flow opposite, so that a larger air volume flow can be circulated even with a comparatively small fan. Effective humidification of the air flow can be achieved by extending the evaporator block longitudinally in the direction of flow. This allows a significantly higher evaporation rate to be achieved than when flowing through a liquid-soaked fleece or sponge.
  • the air flow generated by the fan is directed or guided within the device in such a way that at least part of the air flow hits the water surface of the water contained in the water container and sets it in motion.
  • This measure takes into account the fact that the device design according to the invention does not require a water pump.
  • a continuous circulation of the water supply in the water tank which otherwise occurs due to the circulation by the water pump, is carried out by the air flow or partial air flow directed towards the water surface.
  • constant mixing takes place, which on the one hand accelerates the dissolution of salt added to the water and on the other hand is conducive to disinfection, since water volumes in areas of the water container that may be shaded, for example in front of a UV light source are also subjected to sterilizing UV radiation due to the mixing.
  • the fan be designed as an axial fan, which is arranged with its fan axis approximately perpendicular to the water surface. Studies have shown that the best mixing effect is achieved when the air flow hits the water surface approximately vertically.
  • axial fans are cost-effective and robust and enable high air volume flows and low-noise operation even with a comparatively low fan output.
  • the air flow generated by the fan is guided within the device over the surface of the water contained in the water container before it hits the evaporator block. This leads even before impact of the air flow onto the evaporator block to "pre-humidify” the air flow and thus increases the evaporation capacity of the device.
  • the arrangement of the evaporator block in front of an air outlet opening of the air humidification device is particularly advantageous.
  • the humidified, salty air stream does not come into contact with electrical or metal components of the air humidification device, which could be damaged over time. This also leads to an increased release of salt into the room air, since salt particles carried by the air flow cannot precipitate again inside the air humidification device.
  • the evaporator block can be positioned on the air outlet side of the device be arranged behind the fan. Locating the fan at the air inlet ensures that the fan does not come into contact with the humidified, salty air, thereby preventing salt encrustation and corrosion on the fan.
  • the evaporator block has a plurality of adjacent lamellas that extend in the direction of flow and at least partially surround the flow openings.
  • this arrangement leads to a high air permeability of the evaporator block and, on the other hand, to a high evaporation performance due to the large contact area between the air flow and the slats.
  • the slats of the evaporator block can be connected to one another in a honeycomb shape.
  • a honeycomb structure is easy to produce, but on the other hand, it makes it possible to produce evaporator blocks with flow openings of different sizes and thus different evaporation performance by pulling them apart or pushing them together in an accordion shape.
  • a particularly practical arrangement results when the slats of the evaporator block are arranged in a frame-shaped cassette. This takes into account the fact that the evaporator block is designed as a cost-effective and easy-to-change replacement part of the humidification device. Such a cassette enables simple and reliable handling when inserting or replacing the evaporator block.
  • the cassette is preferably designed so that it is to be arranged perpendicular to the direction of flow.
  • the cassette is held in guide rails running laterally on the housing of the air humidification device.
  • the evaporator block is arranged slightly inclined towards the air outlet opening relative to the air flow.
  • the air flow can hit the evaporator block at an oblique angle between 45° and 90°.
  • the flow openings of the evaporator block which are inclined at an angle to the air flow, lead to a deflection of the air flow in the direction of the air outlet opening. This can lead to improved moisture release into the airflow.
  • the inclined position of the evaporator block ensures that it becomes opaque and thus protects against views into the interior of the device. This means that there is no need for additional privacy protection through slanted slatted grilles, which is often provided for aesthetic reasons.
  • a significant advantage of the inclined position of the evaporator block is that if a UV light source is used to disinfect water contained in the water container, the escape of UV radiation from the device, which can have harmful consequences for health, is reliably avoided.
  • the evaporator block for the air humidification device according to the invention can preferably consist at least partially of an absorbent fiber fleece, in particular of cellulose.
  • a fiber fleece enables rapid and high water absorption, is cost-effective to produce and environmentally friendly to dispose of.
  • Particularly suitable for producing a corresponding evaporator block with slats connected in a honeycomb shape is filter paper or non-woven paper, i.e. unglued and lightly pressed Paper, which, thanks to its loose structure, forms fine capillaries that quickly absorb water and release it easily into the air flow.
  • the invention also provides that the evaporator block has a longitudinal extension in the direction of flow. In a preferred embodiment, this is between 1 cm and 5 cm, more preferably at least 3 cm.
  • a UV light source is further provided, which serves to disinfect water contained in the water container. This prevents the formation of germs inside the air humidification device and thus ensures that the humidified and mineralized air flow released into the room air is hygienically perfect.
  • the UV light source is preferably arranged in an inlet-side area of the air humidification device, i.e. in front of the evaporator block, so that it does not come into contact with the salty, moist air flow.
  • the UV light source can be arranged in a luminaire installation space that is preferably set back from the air flow in the upper area or cover area of the air humidification device. This ensures effective UV irradiation of the water container or the water surface arranged underneath.
  • the circulation of the water volume according to the invention by an air or partial air flow directed onto the water surface can be improved in a preferred embodiment in that at least one flow channel is arranged between the air inlet and the fan, which has a particularly helical surface contouring on the inside, which is suitable to cause the air sucked in by the fan to rotate.
  • Such an air stream rotating around the direction of flow proves to be particularly efficient in terms of mixing the volume of water blown into it.
  • an ionizing device for ionizing gas particles contained in the air stream can be provided in the air humidification device.
  • Such an ionizing device increases the effectiveness of the sea-climate-like healing climate created by the device.
  • Such an ionizing device can, for example can be realized by the arc discharge of a high-voltage discharge unit biased to approx. 10 kV.
  • evaporator blocks which differ in terms of the number and/or size of the flow openings and/or longitudinal extension in the flow direction.
  • the evaporation performance can be adjusted to external conditions, such as room size, outside temperature or weather-related humidity.
  • the different evaporator blocks each have a large number of adjacent slats connected to one another in a honeycomb shape and the slats of the different evaporator blocks are pulled apart to different distances in an accordion shape. This means that evaporator blocks with different evaporation capacities can be easily produced from the same starting materials.
  • the air duct according to the invention has a further advantage with regard to the filtering of fine dust in the device.
  • a vertical arrangement of the fan in which the sucked in air hits the water surface at an approximately right angle, ensures that the air comes into contact with the water surface and thus binds the fine dust in the water becomes. This means that the remaining fine dust still contained in the sucked-in air behind the fine dust filter is washed out when it comes into contact with the water surface and is later bound in the evaporator block by capillary action.
  • Figures 8 and 9 a schematic view of a honeycomb structure that can be used in an evaporator block, which has been pulled apart in an accordion shape to adjust the evaporation performance and
  • Figures 10 and 11 those in the evaporator block Fig. 7 Honeycomb structure used, stretched to different extents in the transverse direction for different evaporation performance.
  • FIG. 1 An air humidification device according to the invention is shown schematically.
  • the device comprises a housing 2, the lower area 3 of which is designed as a water container that is open at the top and into which water 4 mixed with sea salt is filled.
  • the housing 2 has an air inlet opening 5 with a ventilation grille arranged in front of it consisting of a large number of parallel ventilation slots, in front of which an additional filter for suspended matter, fine particles, pollen dust and the like can be provided on the inside.
  • the housing 2 On the upper right side, the housing 2 has an air outlet opening 6. Below the air inlet opening 5, a downwardly directed radial fan 7 is arranged within the housing 2, which sucks in room air through the air inlet opening 5 and generates an air flow 8 that is initially directed downwards onto the water surface.
  • the air stream 8 hits the water surface and sets it in motion. On the water surface, the air flow 8 is deflected laterally and runs approximately parallel to the water surface between it and an upper boundary wall 9 provided on the housing cover in the direction of an evaporator block 10 arranged in front of the air outlet opening 6, the structure of which will be explained in more detail below.
  • the lower end of the evaporator block 10 is immersed in the water-filled water container and is filled with water due to its capillary structure.
  • the air stream 8 flows through the evaporator block 10, which is provided with flow openings, and is thereby moistened and mixed with salt minerals.
  • the mineralized and humidified air flow 8' then exits to the air outlet opening 6.
  • a UV lamp 11 arranged in the area of the upper boundary wall 9 illuminates the interior of the device and in particular the water surface of the sea salt-containing water 4 contained in the water tank 3.
  • the high-energy UV radiation ensures that the water 4 is sterilized. This is caused by the air flow 8 Water movement also ensures that the water 4 is mixed and thus contributes to complete sterilization of the water.
  • FIG. 2 a sectional drawing through the air humidification device of an exemplary embodiment is shown.
  • the housing 2 of the device consists of the lower housing part 3, which also serves as a water container, and an upper housing part 13, in which the electrical components of the device are housed.
  • a lower boundary wall 9 of the upper housing part 13 limits the air-flowing interior of the device upwards.
  • the radial fan 7 is inserted into a cylindrical shaft 15 that is open at the bottom and draws in outside air through the air inlet openings 5, which are arranged offset to the side.
  • the air flow flows from the air inlet openings 5 via air ducts running approximately perpendicular to the plane of the drawing to the shaft area 15 arranged in the plane of the drawing with the fan 7 arranged therein.
  • the air ducts which cannot be seen in the figure, are helical on the inside with surface contouring running grooves or elevations or grooves or recesses that cause the air flowing through to rotate, similar to the principle of a rifled rifle barrel.
  • the air turbulence of the air stream 8 created in this way leads to increased water movement when it hits the water surface.
  • the UV lamp 11 is accommodated in the upper part of the housing in a lamp installation space 12, which is set back upwards compared to the flow space delimited by the boundary wall 9.
  • the lower boundary wall 9 of the upper housing part 13 runs upwards in a step or slight incline and thus forms an air outlet shaft 6' together with the outer housing wall.
  • the evaporator block 10 is arranged in front of this, the lower area of which is immersed in the water-filled container formed by the lower housing shell 3.
  • FIGs 3 and 4 The dimensioning and arrangement of the air inlet openings 5 and the air outlet opening 6 is in Figures 3 and 4 to recognize.
  • This shows Figure 3 one Side view of the in Figure 2 right side of the device and Figure 4 a side view of the in Figure 2 left side of the device.
  • a power cable connection 14 for powering the device in the middle between the two air inlet openings 5 in the upper area.
  • a corresponding electronic circuit, which controls the fan 7 and the UV lamp 11, is also housed in the upper housing part 13.
  • a control panel 14 'with control buttons, which can be used to switch on the device and, if necessary, regulate the fan speed, is arranged on the top of the upper housing part 13.
  • FIG. 5 An exploded view of the air humidification device is shown again, in which the lower housing part 3, upper housing part 13, evaporator block 10 and UV lamp 11 are shown separately.
  • the air inlet side housing part 13' of the upper part of the device 13 with the ventilation grilles 5' can be removed separately in order to clean or replace an air filter behind it.
  • the evaporator block 10 consists of a honeycomb structure 16 made of a cellulose fleece, for example a special filter paper, which has a high absorbency. Honeycombs made of cellulose fleece arranged next to each other and running in a tubular shape in the direction of flow form flow openings and release moisture and minerals into the air stream 8 as it flows through.
  • the honeycomb structure 16 is inserted into a frame 17, which forms an insert cassette provided with guide grooves 18 on the side, which is inserted into corresponding guide rails 19, which are arranged laterally on the lower housing part 13 in front of the air outlet opening 6.
  • FIG. 6 first shows schematically the frame-shaped cassette 17 with a honeycomb structure 16 accommodated therein, which has a large number of tubular flow openings with a hexagonal cross section arranged next to one another.
  • Figure 7 shows the evaporator block 10 designed as a slide-in cassette of an exemplary embodiment.
  • a circumferential frame 17 is provided, in which a honeycomb structure 16 provided with flow openings is accommodated. This is compared to the regular hexagonal shape, as in Figure 6 shown, pushed together in an accordion shape so that the individual honeycombs appear as slots running in a vertical direction.
  • FIG. 8 to 11 This accordion property of the honeycomb structure 16 is shown in detail.
  • the Figures 8 and 9 first show the honeycomb structure schematically in an idealized manner, with the honeycomb structure 16a in Figure 8 pulled apart, the corresponding honeycomb structure 16b in Figure 9 is pushed together more laterally, so that there are more flow openings per area.
  • the Figures 10 and 11 show actual honeycomb structures made of non-woven paper in a top view.
  • the honeycomb structure 16a is in Figure 10 pulled apart in an accordion shape, the honeycomb structure 16b in Figure 11 pushed together more.
  • the number and size of the flow openings can be varied in a simple manner in order to change the evaporation performance of the evaporation block 10 or to provide evaporation blocks with different evaporation performance, which can optionally be used in the device.
  • Such a honeycomb structure 16 is produced, for example, by attaching individual, vertical and correspondingly folded strips of nonwoven paper or cellulose nonwoven to strip-shaped, in Figures 10 and 11 Contact surfaces extending into the drawing plane are connected to one another, for example glued or embossed.
  • each hexagon in Figure 10 is therefore formed by a left and a right lamella strip, each running in a vertical direction.
  • cellulose fleece or fleece paper other materials made from natural fibers are also suitable as the material for the evaporator block 10, but also clay, expanded clay or polymeric plastics or synthetic fibers.
  • the evaporator block can also be made from any mixture of the materials mentioned. What is important here is a hydrophilic or capillary suction property that ensures passive and permanent moisture penetration of the evaporator block when its lower area is immersed in water. In other words, when it comes into contact with water, the evaporator block 10 automatically soaks up water like a sponge and releases it into an air stream flowing through.
  • the device is designed to operate with mineralized water, i.e. water containing sea salt, with the salt concentration preferably being ⁇ 2%.

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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 (12)

  1. Appareil destiné à l'humidification de l'air ambiant, avec une admission d'air (5), un aérateur (7) réalisé en tant qu'aérateur axial et agencé au niveau de l'admission d'air (5) destiné à la génération d'un flux d'air (8), avec un récipient d'eau (3) ouvert vers le haut et un système d'humidification (10) qui peut être parcouru par le flux d'air (8) et est agencé dans la direction d'écoulement,
    dans lequel l'aérateur (7) est agencé avec son axe d'aérateur à peu près perpendiculairement à la surface de l'eau et le flux d'air (8) généré par l'aérateur (7) est dirigé ou guidé à l'intérieur de l'appareil de telle sorte qu'au moins une partie du flux d'air entre en contact avec la surface de l'eau de l'eau (4) absorbée dans le récipient d'eau (3) et met celle-ci en mouvement,
    caractérisé en ce que
    l'appareil sert à l'humidification de l'air ambiant avec de l'eau minéralisée (4) et en particulier contenant du sel de mer et
    le système d'humidification (10) est réalisé en tant que bloc évaporateur à action capillaire et doté d'ouvertures d'écoulement qui s'immerge dans le récipient d'eau (3),
    dans lequel l'appareil possède une paroi de délimitation supérieure (9) prévue au niveau d'un couvercle de boîtier et dans lequel le flux d'air (8) généré par l'aérateur (7) est guidé à l'intérieur de l'appareil via la surface de l'eau de l'eau (4) absorbée dans le récipient d'eau (3), avant d'entrer en contact avec le bloc évaporateur (10), en détournant latéralement le flux d'air (8) au niveau de la surface de l'eau et en l'écoulant à peu près parallèlement à la surface de l'eau entre celle-ci et la paroi de délimitation supérieure (9) prévue dans la direction du bloc évaporateur (10) agencé devant une ouverture de sortie d'air (6).
  2. Appareil d'humidification de l'air selon la revendication 1, dans lequel le bloc évaporateur (10) présente une pluralité de lamelles (16) s'étendant dans la direction d'écoulement et entourant au moins partiellement les ouvertures d'écoulement, en particulier dans lequel les lamelles (16) du bloc évaporateur (10) sont reliées entre elles en forme d'alvéoles.
  3. Appareil d'humidification de l'air selon la revendication 2, dans lequel les lamelles (16) du bloc évaporateur (10) sont agencées dans une cassette en forme de cadre (17), en particulier dans lequel la cassette (17) est agencée perpendiculairement ou selon un angle aigu par rapport à la direction d'écoulement (8).
  4. Appareil d'humidification de l'air selon la revendication 3, dans lequel la cassette (17) est portée dans des rails de guidage (19) s'étendant latéralement.
  5. Appareil d'humification de l'air selon l'une quelconque des revendications précédentes, dans lequel le bloc évaporateur (10) se compose au moins partiellement d'un tissu non tissé absorbant, en particulier à base de cellulose.
  6. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes, dans lequel le bloc évaporateur (10) présente dans la direction d'écoulement (8) une étendue longitudinale de 1 cm à 5 cm, de préférence d'au moins 3 cm.
  7. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes avec une source de lumière UV (11) destinée à la désinfection de l'eau (4) absorbée dans le récipient d'eau (3).
  8. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes, dans lequel au moins un canal d'écoulement (5') est agencé entre l'admission d'air (5) et l'aérateur (7), lequel canal présente côté intérieur un contour de surface s'étendant en forme de spirale qui est adéquat pour mettre en rotation l'air aspiré par l'aérateur (7).
  9. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes, dans lequel est prévu en outre un système d'ionisation destiné à l'ionisation de particules de gaz contenues dans le flux d'air (8).
  10. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes, dans lequel plusieurs blocs évaporateurs (10 ; 16a, 16b) utilisables alternativement sont prévus pour l'adaptation d'une puissance d'évaporation, lesquels se différencient en termes de nombre et/ou de taille des ouvertures d'écoulement et/ou de l'étendue longitudinale dans la direction d'écoulement.
  11. Appareil d'humidification de l'air selon la revendication 10, dans lequel les différents blocs évaporateurs (10) présentent respectivement une pluralité de lamelles (16a, 16b) adjacentes et reliées les unes aux autres en forme d'alvéoles, dans lequel les lamelles (16a, 16b) des différents blocs évaporateurs (10) sont étirées à différentes longueurs à la manière d'un accordéon.
  12. Appareil d'humidification de l'air selon l'une quelconque des revendications précédentes, dans lequel au niveau de l'admission d'air (5) est agencé un filtre à particules fines destiné au filtrage de particules en suspension contenues dans l'air ambiant aspiré.
EP17758451.3A 2016-08-12 2017-08-11 Climatiseur pour humidifier de l'air ambiant avec de l'eau minéralisée Active EP3497375B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016104471.5U DE202016104471U1 (de) 2016-08-12 2016-08-12 Gerät zur Befeuchtung von Raumluft
PCT/EP2017/070437 WO2018029343A1 (fr) 2016-08-12 2017-08-11 Appareil de conditionnement d'air servant à l'humidification d'air ambiant à l'aide d'eau minéralisée

Publications (2)

Publication Number Publication Date
EP3497375A1 EP3497375A1 (fr) 2019-06-19
EP3497375B1 true EP3497375B1 (fr) 2023-11-15

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EP (1) EP3497375B1 (fr)
CN (1) CN109642744B (fr)
DE (1) DE202016104471U1 (fr)
WO (1) WO2018029343A1 (fr)

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RU2722977C1 (ru) * 2019-04-26 2020-06-05 Общество с ограниченной ответственностью "Экологические инновации" Увлажнитель воздуха
CN110594925A (zh) * 2019-10-29 2019-12-20 广东美的制冷设备有限公司 加湿膜及制备方法、空气调节设备
CN110965916A (zh) * 2019-11-13 2020-04-07 合肥四周建筑装饰有限公司 一种对雾霾具有杀菌作用的防雾霾窗户
CN113739302A (zh) * 2021-06-23 2021-12-03 陈文辉 一种新型蒸发式加湿器

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CN109642744A (zh) 2019-04-16
WO2018029343A1 (fr) 2018-02-15
EP3497375A1 (fr) 2019-06-19
CN109642744B (zh) 2022-02-18

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