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WO2015179993A1 - Laveur d'air - Google Patents

Laveur d'air Download PDF

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Publication number
WO2015179993A1
WO2015179993A1 PCT/CH2015/000081 CH2015000081W WO2015179993A1 WO 2015179993 A1 WO2015179993 A1 WO 2015179993A1 CH 2015000081 W CH2015000081 W CH 2015000081W WO 2015179993 A1 WO2015179993 A1 WO 2015179993A1
Authority
WO
WIPO (PCT)
Prior art keywords
drum
air
open
washer according
air washer
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.)
Ceased
Application number
PCT/CH2015/000081
Other languages
German (de)
English (en)
Inventor
Manfred Fitsch
Armando HUTTER
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.)
BONECO AG
Original Assignee
BONECO AG
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 BONECO AG filed Critical BONECO AG
Publication of WO2015179993A1 publication Critical patent/WO2015179993A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • 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
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F24F8/133—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering by direct contact with liquid, e.g. with sprayed liquid
    • 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
    • F24F2006/065—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using moving unheated wet elements using slowly rotating discs for evaporation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the invention relates to an air washer.
  • Air scrubbers Impurities in the air such as dust, pollen, bacteria, etc. are a burden for some people. For this reason, there are devices known as "air scrubbers." In these, an air flow in contact with water - which may be effective and / or The result is that, in particular, impurities present in the form of solid particles remain in the water and, secondly, the air is humidified, which also has a positive effect on the indoor climate.
  • a first known principle is to introduce an air stream directly into a water bath, whereupon air bubbles form in the water bath, which rise to the surface thereof.
  • a second, in particular suitable for larger systems principle is to guide an air flow through a curtain of water.
  • Next are also based on the Wasserzerstäuberkin air washers known.
  • It is also known, in an air scrubber, to guide an air flow tangentially over a water surface or through a moistened structure, in particular from an absorbent material immersed in the water. All of these principles have ilire advantages and disadvantages, and in particular disturbing noises arise on devices based on air bubbles and appropriate measures must be taken to prevent hygiene problems in devices based on the atomizer principle.
  • the present invention is concerned with the disadvantages of the other principles with air washers in which the air flow is passed through a humidified structure to impurities there and - depending on the already existing humidity - absorb moisture.
  • air flow is passed through a humidified structure to impurities there and - depending on the already existing humidity - absorb moisture.
  • the air flow on the one hand comes into contact with the largest possible surface of the structure and on the other hand experiences the smallest possible flow resistance.
  • the air washer device as a whole is as compact as possible and takes up little space, which precludes the requirement for the largest possible surface of the structure.
  • an air scrubber comprising:
  • a water tank may be available, from which water flows into the water tank as required, as soon as the water level has fallen below a certain nominal value.
  • the regulation of the water level can be done by an active controller with water level sensor or passive, for example, the so-called “birdbath principle.”
  • a measure to suppress unwanted noise for example, be taken after the principle described in Swiss Patent Application Ol 622/13 ,
  • Both the centrifugal fan and the surrounding drum preferably have at least approximately horizontal axes of rotation, i. the axes of rotation are at least approximately parallel to the water surface (for example at an angle of maximum plus 20 ° to the horizontal).
  • the axes of rotation of radial fan and drum may be substantially parallel to each other (at an angle of at most 20 °, in particular at most 10 ° to each other). Radial fan and drum may be offset from each other or coincide.
  • the axis of rotation of the centrifugal fan may be located on the vertical plane of symmetry of the drum, but slightly above its axis of rotation so that the drum can dive sufficiently into the water tank and still the practical aspects (protection of the centrifugal fan, mountability, etc.) are right.
  • the drum may be mounted on rotatable rollers provided therefor. These may be passive, or at least one of them may be actively powered electrically.
  • the rollers may be disposed above the water level or at least partially below it.
  • the open-pored structure may be different from an evaporative mat (absorbent mat), but positively irrigated.
  • the forced irrigation takes place in the present case by the rotational movement of the drum about its axis.
  • the open-pored structure may in particular be a filter foam.
  • open-cell filter foams of fibrous appearance made of polyurethane or polyester or other plastics are available on the market, which are suitable for use in the context of the present invention.
  • the open-pored structure may be a foam of lattice-like expression, ie be provided with a lattice-like fiber structure which forms the open pores. It can be provided that hardly membranes are formed between the fibers.
  • the open-pored structure may consist of a foamed material, in particular plastic, and have a porosity of between 70% and 95%, in particular between 75% and 90%.
  • the open-pored structure can also be formed by a three-dimensional fabric.
  • the open-pore structure has a large surface due to its open-pored structure and can thus absorb and evaporate a lot of water.
  • the material of the open-pored structure itself is not absorbent - as is the case, for example, with polyurethane or polyester.
  • the moistening then takes place, as already mentioned above, as forced irrigation by the structure being immersed in the water by rotation of the drum.
  • the forced irrigation has the advantage that arrangements such as a drum surrounding the centrifugal fan at all possible.
  • the open-pored structure may in particular form a ring. It can have an axial extent corresponding to the axial extent of the drum, minus an optional outer drum housing.
  • the open-pored structure may have an axial extent that corresponds to at least the axial extent of the radial fan (ie, the axial extent of those parts that drive the air, that is, the fan blade or the like, without any shafts, electric motor, etc.) Also axial expansions of the open-pored structure, which are smaller than that of the radial fan are possible.
  • the mechanism that adjusts the water level in the water trough will regulate the water level in the water trough so that the drum is submerged in the water at least at one location along the ring axis (at the lowest point) over an entire cross section of the open cell structure.
  • the water level will be such that the centrifugal fan does not come into contact with the water in the water tub.
  • the drum may also have a housing, for example in the form of a shell holding the open-pored structure.
  • a shell can rest against the open-pored structure, in particular in the axial direction, while it extends radially inward and / or radially outward, so as not to hinder the air flow as much as possible.
  • Such a housing may in particular be composed of two half-shells which are optionally substantially identical.
  • the housing can surround and receive the open-pored structure in a basket-like manner.
  • the air washer as a whole may have a relatively flat shape, i. a depth (extension in the direction of the axis of the centrifugal fan) can be significantly smaller than the height and the width (horizontal extent perpendicular to the axis of the radial fan). It is thus possible to design the air scrubber as a whole relatively compact, requiring little volume and nevertheless to achieve a large effective area radially outward by the inventive attachment of the drum.
  • FIG. 1 is an exploded view of elements of an air scrubber according to the invention
  • FIG. 1 is an illustration of the elements of which the drum is constructed
  • FIG. 3 is an exploded view of the screw drive for the drum.
  • Figure 4 is a view of the ready-to-use air washer.
  • the air scrubber 1 has, in a housing composed of a plurality of housing parts 3, 4, a radial ventilator 5, which rotates electrically driven about its horizontal axis 6 during normal operation. As a result, it sucks in air from the axial direction, which through suitable openings - eg. A circumferential Slit 31 or lamellar openings is sucked in the corresponding housing part. The sucked air passes through a mechanical pre-filter 8 and held in a filter intermediate wall 10 filter mat 9 in the region of the radial fan 5 and is blown away from this radially outward.
  • the filter intermediate wall 10 serves by its shape with the tuned in its size on the radial fan hole and the leadership of the incoming air flow and as a diffuser.
  • the filter mat can be designed as a simple fluff filter or as a HEPA (High Efficiency Particulate Air Filter) fine dust filter; Combinations of a coarse filter and a HEPA filter are also possible.
  • a HEPA filter with a pleated tissue for example made of PE, can be used, which is characterized by a large area and therefore a low pressure drop in relation to the efficiency.
  • a coarse filter precedes a filter of filter class F13 (also referred to as Hl 3); here reference is made to the valid European standards (as of 2014).
  • HEPA filters are used to filter respirable dusts, pollen, smoke particles, bacteria, etc. from the air.
  • a filter element made of activated carbon, to combat unpleasant odors or the like may be present.
  • the filter mat can be a hybrid structure of fine dust filter and activated carbon.
  • a drum 10 is tuned in its inner diameter to the outer diameter of the radial fan and surrounds it in the ready state.
  • the drum has in a drum housing 12 an open-pored ring 1 1 of a filter foam.
  • a water tank 20 below the centrifugal fan is in the ready state, a water tank 20.
  • This has a chamber 21, in which the bottom of the drum 10 is immersed.
  • the chamber 21 is connected through a lower passage with a second chamber 23, which in turn is continuously refilled from a water tank 24 forth so that the water level is always approximately constant, as long as water is in the water tank 24. This can happen, for example, according to the so-called "birdbath principle".
  • the water tank may be provided with a suitable mechanism that causes its exit to the water tub 20 to close automatically when the water tank is lifted off. Additionally or alternatively, the water tank may be provided with means that prevent disturbing noises caused by air flowing in air bubbles. Such a mechanism is described in the Swiss patent application 01622/13 of 23.9.2013, the contents of which are expressly incorporated herein by reference.
  • the drum is mounted on two rollers 25, which in turn are rotatably mounted on edges of the water tub and, for example, above the water level.
  • the arrangement of these storage means is such that the axis of rotation 16 of the drum 10 in the ready for use, for example, slightly below the axis of rotation 6 of the centrifugal fan and at least approximately parallel to this.
  • the drum is driven by means of a ring gear 17 by a Sclineckenantrieb.
  • the screw drive not visible in FIG. 1 can have its own electric motor, or it can be connected to the electric drive of the centrifugal fan by suitable gear means. Other types of drive than a worm drive are possible, for example. Via a gear which cooperates with the ring gear or - with or without ring gear - via an active driving of the rollers 25; Also, an indirect transfer between the electric drive and the drum, for example. About the air flow generated by the centrifugal fan is not excluded.
  • a ring gear of the drum is arranged outside circumferentially and is driven by a worm drive or a gear mounted in the housing;
  • the drive of the drum may have its own electric motor or be connected via suitable transmission means with the drive of the centrifugal fan.
  • the housing may be provided with a mechanism which ensures that the device can only be put into operation when the housing is closed.
  • an electronic block 41 of a housing part 4 with an element of the other housing part 3 cooperate by this electronic block can detect the presence of this element and the device only unlocks when this element is actually detected.
  • mechanical switches or reed relay circuits are known for this purpose.
  • a permanent magnet for example a rare-earth magnet, for example a neodymium magnet, is arranged in a housing part in such a way that it has a soft-magnetic element in the closed state of the housing. eg a transformer plate) of the other housing part and magnetizes it, wherein the electronics block has a Hall sensor which detects the magnetization of the soft magnetic element and thus indirectly the presence of the other housing part.
  • the electronics block 41 can also form a control panel with display; Also, a separate arrangement of a control panel and / or display and, in addition or alternatively, the provision of operation via a remote control are possible.
  • FIG. 2 shows the elements from which the drum of the embodiment according to FIG. 1 is constructed.
  • the drum housing 12 is formed by two identical with each other housing shells 12.1, 12.2.
  • Each housing shell has an outer ring 13 with the outer side sprocket 17, an inner ring 14 and an intermediate part formed by web-like connections 15 between the rings.
  • the outer ring 13 covers the open-pored ring 1 1 frontally, ie. In the axial direction, for example, and prevents so that from the inside in the ring 1 1 guided air can escape in axial directions.
  • fastening tongues 18 are formed, which engage in openings 19 of the respective other housing shell to connect the two housing shells together.
  • the open-pore ring 1 1 is integrally formed of a polyurethane foam.
  • the intermediate part consists here of the radially-outwardly extending web-like connections 15. Radially within the open-pored ring 11, connections could optionally also be formed; in the illustrated embodiment, however, this is not the case, but the open-pore ring is radially inward open. As a result, the flow resistance is further reduced.
  • the two housing shells non-identical and, for example, to provide the ring gear 17 only on one of the two housing shells.
  • the symmetrical structure has only certain production advantages and also causes the user to be able to use the drum in both possible orientations.
  • a structure with only a single, the open-pore ring 11 basket-like receiving from the one side shell is possible. Even structures without drum housing 12 with a dimensionally stable open-pored structure are not completely excluded.
  • FIG. 3 shows the worm drive with the worm shaft 51, an electric motor 52 and a transmission shaft 53.
  • a holder 54 defines the position.
  • the axes of the worm shaft 51 and the transmission shaft 53 are slightly inclined with respect to the radial plane.
  • FIG. 4 shows a view of the air washer from the side of the water tank 24. One also sees, among other things, a maintenance opening 46.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Un aspect de l'invention concerne un laveur d'air (1) qui présente : un ventilateur radial (5) qui aspire l'air axialement et qui le souffle radialement vers l'extérieur; un tambour (10) entraîné électriquement, rotatif autour d'un axe de tambour, présentant une structure à pores ouverts (11), le tambour étant disposé de manière à entourer le ventilateur radial de manière telle que l'air soufflé radialement vers l'extérieur est soufflé au travers de la structure; et - une cuve à eau (20), une partie inférieure du tambour étant plongée dans la cuve à eau (et, de manière correspondante, lors d'un remplissage prévu dans le mode de fonctionnement normal, dans le bain d'eau qui s'y trouve).
PCT/CH2015/000081 2014-05-27 2015-05-26 Laveur d'air Ceased WO2015179993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00814/14A CH709701B1 (de) 2014-05-27 2014-05-27 Luftwäscher.
CH814/14 2014-05-27

Publications (1)

Publication Number Publication Date
WO2015179993A1 true WO2015179993A1 (fr) 2015-12-03

Family

ID=53276670

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2015/000081 Ceased WO2015179993A1 (fr) 2014-05-27 2015-05-26 Laveur d'air

Country Status (2)

Country Link
CH (1) CH709701B1 (fr)
WO (1) WO2015179993A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219499A1 (fr) 2017-06-01 2018-12-06 Boneco Ag Laveur d'air
CN109442629A (zh) * 2018-11-15 2019-03-08 青岛海尔空调器有限总公司 空气净化加湿器
WO2022205882A1 (fr) * 2021-03-31 2022-10-06 青岛海尔空调器有限总公司 Dispositif de traitement d'air et climatiseur

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH162213A (de) 1932-05-03 1933-06-15 Chem Ind Basel Verfahren zur Herstellung von Deckschichten aus Carbamid-Aldehyd-Kondensationsprodukten.
GB537917A (en) * 1939-08-22 1941-07-14 Nils Olof Harry Styren Methods and means for conditioning air
US3149626A (en) * 1963-05-20 1964-09-22 Lau Blower Co Humidifier
US3471133A (en) * 1968-06-03 1969-10-07 Mc Graw Edison Co Drum-type humidifier
US3796416A (en) * 1972-09-07 1974-03-12 Mc Graw Edison Co Humidifier drum construction
US3895083A (en) * 1973-05-29 1975-07-15 Skuttle Mfg Co Rotary assembly for humidifier
JP2008180397A (ja) * 2007-01-23 2008-08-07 Mitsubishi Electric Corp 加湿装置
JP2008224188A (ja) * 2007-03-15 2008-09-25 Mitsubishi Electric Corp 加湿装置
US20110084414A1 (en) * 2009-10-12 2011-04-14 Samsung Electronics Co., Ltd. Air cleaning humidifier and disc assembly thereof

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH162213A (de) 1932-05-03 1933-06-15 Chem Ind Basel Verfahren zur Herstellung von Deckschichten aus Carbamid-Aldehyd-Kondensationsprodukten.
GB537917A (en) * 1939-08-22 1941-07-14 Nils Olof Harry Styren Methods and means for conditioning air
US3149626A (en) * 1963-05-20 1964-09-22 Lau Blower Co Humidifier
US3471133A (en) * 1968-06-03 1969-10-07 Mc Graw Edison Co Drum-type humidifier
US3796416A (en) * 1972-09-07 1974-03-12 Mc Graw Edison Co Humidifier drum construction
US3895083A (en) * 1973-05-29 1975-07-15 Skuttle Mfg Co Rotary assembly for humidifier
JP2008180397A (ja) * 2007-01-23 2008-08-07 Mitsubishi Electric Corp 加湿装置
JP2008224188A (ja) * 2007-03-15 2008-09-25 Mitsubishi Electric Corp 加湿装置
US20110084414A1 (en) * 2009-10-12 2011-04-14 Samsung Electronics Co., Ltd. Air cleaning humidifier and disc assembly thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018219499A1 (fr) 2017-06-01 2018-12-06 Boneco Ag Laveur d'air
US11085655B2 (en) 2017-06-01 2021-08-10 Boneco Ag Air scrubber
CN109442629A (zh) * 2018-11-15 2019-03-08 青岛海尔空调器有限总公司 空气净化加湿器
WO2022205882A1 (fr) * 2021-03-31 2022-10-06 青岛海尔空调器有限总公司 Dispositif de traitement d'air et climatiseur

Also Published As

Publication number Publication date
CH709701B1 (de) 2018-08-15
CH709701A2 (de) 2015-11-30

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