WO2022165548A1 - Appareil de purification d'air - Google Patents

Appareil de purification d'air Download PDF

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Publication number
WO2022165548A1
WO2022165548A1 PCT/AU2022/050042 AU2022050042W WO2022165548A1 WO 2022165548 A1 WO2022165548 A1 WO 2022165548A1 AU 2022050042 W AU2022050042 W AU 2022050042W WO 2022165548 A1 WO2022165548 A1 WO 2022165548A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter cartridge
air
treatment apparatus
air purification
outlet
Prior art date
Application number
PCT/AU2022/050042
Other languages
English (en)
Inventor
Suzanne Kambuts
Original Assignee
Vanquish Technologies Holdings Pty Ltd
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
Priority claimed from AU2021900253A external-priority patent/AU2021900253A0/en
Application filed by Vanquish Technologies Holdings Pty Ltd filed Critical Vanquish Technologies Holdings Pty Ltd
Publication of WO2022165548A1 publication Critical patent/WO2022165548A1/fr

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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
    • 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
    • F24F8/108—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 dry filter elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/14—Filtering means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/16—Connections to a HVAC unit
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • F24F11/49—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • 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
    • F24F8/15—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 by chemical means
    • F24F8/158—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 by chemical means using active carbon
    • 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
    • F24F8/15—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 by chemical means
    • F24F8/167—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 by chemical means using catalytic reactions
    • 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
    • F24F8/95—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes
    • F24F8/98—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying specially adapted for specific purposes for removing ozone

Definitions

  • One photocatalytic air treatment device is disclosed in International Patent Application No. PCT/AU2015/000533, in the name of Farmspec Pty Ltd, for an air modifying device configured to extend the shelf life of a fresh product and a method for use thereof.
  • the device comprises a cylindrical hollow body including an inner surface coated with a metal oxide and a source of UV light within the body to direct UV light onto the surface.
  • a fan is used to move air or gas through the hollow body.
  • PCO photocatalytic oxidation
  • the foregoing objects should not necessarily be considered as cumulative and various aspects of the invention may fulfil one or more of the above objects.
  • an air purification or treatment apparatus comprising: a housing including an inlet adjoining an inlet compartment, and an outlet adjoining an outlet compartment; a UV light source positioned within or adjacent the outlet compartment; a filter cartridge including a first side positionable adjacent the inlet compartment and a second side positionable adjacent the outlet compartment, wherein the UV light source is configured to irradiate at least the second side of the filter cartridge; and a catalyst substance coating applied substantially at and adjacent the second side of the filter cartridge, whereby larger particulate matter within an inflow of air from the inlet compartment is capturable at or adjacent the first side of the filter cartridge, to thereby inhibit contamination or fouling of the catalyst substance coating by particulates in the air, at and adjacent the second side of the filter cartridge.
  • An inlet grille may be attached over the inlet and include fixed vanes and/or a mesh.
  • An outlet fan member is hingedly connected to the housing over the outlet.
  • the housing may be generally divided into three compartments, an electronics compartment for retaining the wiring of the power components, the inlet compartment, and the outlet or PCO process compartment.
  • the UV light source may be a bank of UV LED light members or another type of ultraviolet radiation source.
  • the UV source is a high intensity UV LED technology with a specific UV wavelength, that optimises the photochemical reaction.
  • the UV light emitted may have a wavelength between 200nm and 400nm and more preferably between 200nm to 280nm.
  • the housing may comprise a number of connected panels and components.
  • the filter cartridge may be configured to slidably engage a baffle frame member held within the housing.
  • the filter cartridge is preferably configured to pass through the access opening when the filter cartridge cover is open.
  • the outlet fan member may include an outlet fan, gasket and outlet grille.
  • the UV light source may be accessible through a lamp access port, or may be accessible through the openings formed when the filter cartridge cover or outlet fan member are open.
  • the power components may include a power inlet, fuse, transformer and power switch.
  • the transformer may be incorporated into a power plug.
  • the apparatus may alternatively include a battery, where mains power is not available.
  • the power components and circuitry may be configured to control the fan and, in some circumstances, other components, such as but not limited to sensors or transmitters.
  • the filter cartridge may comprise a plurality of corrugated fibrous cellulose sheets forming an array of hollow tubes or open cells therebetween, or an open honeycomb structure, or a fibrous sheet material or any other type of matrix delineating multiple pores or passageways that permit the air to flow therethrough, thereby maximising surface area contact.
  • a number of pathways or pores preferably extend between the first side and second side of the filter cartridge, wherein the UV light source irradiates the second side and inwardly thereof along the number of pathways or pores through the filter cartridge.
  • the apparatus may include prefilter/s and/or activated carbon outlet filter/s.
  • the apparatus may further include sensors to measure air flow, filter efficiency, appropriate fan speed and other quantitative factors, to thereby provide optimal operation of the apparatus.
  • the sensors may also be used to identify carcinogenic compounds in the outgoing airflow or component malfunction/lifespan.
  • the electronics and wiring, or parts thereof, may be contained in any of the aforementioned compartments.
  • Sensors may be positioned at predetermined locations within the apparatus.
  • the sensors monitor the efficiency of the components of the apparatus both locally and centrally and measure the output of each element thereby allowing for continuous monitoring and control.
  • the sensors may be gas sensors, selected from a group including non-optical gas sensors, such as but not limited to, wet electrolyte (electrochemical), metal oxide semiconductor, and FIDs, and optical gas sensors, such as but not limited to, NDIR, FTIR, UV DOAS, chemiluminescence and photoionization (VOCs) sensors.
  • non-optical gas sensors such as but not limited to, wet electrolyte (electrochemical), metal oxide semiconductor, and FIDs
  • optical gas sensors such as but not limited to, NDIR, FTIR, UV DOAS, chemiluminescence and photoionization (VOCs) sensors.
  • the sensor or sensors may alternatively comprise optical sensors for measuring the reflection of the UV light off the catalyst layer to estimate the degree of contamination/fouling which would influence the effectiveness of the device.
  • the sensor or sensor may also comprise flow meters for determine the impedance to the flow of air to thereby estimate the amount of particulates and pollutants captured by the filter cartridge. Furthermore, the sensor or sensors may be configured to measure ethylene concentration in the flow of air.
  • the apparatus may also include network capabilities, wherein the operation of the device can be monitored remotely.
  • Some of the components of the system may be connected by way of a communication device such as, but not limited to, a modem communication path, a computer network such as a local area network (LAN), Internet, or fixed cables.
  • the system may also utilise 3G/4G/5G/XG telecommunications networks or similar, or be connectable to a device that utilises such a network.
  • Communication may also be by way of long-range or short-range networks, such as but not limited to low power radio network, microwave data links, BLUETOOTH®, BLUETOOTH® Low Energy (BLE), Wi-Fi, LoRaTM, NB-loT or any other type of network.
  • the apparatus may further include a memory component, wherein the data is temporarily stored therein, before it is transmitted at predetermined intervals or is interrogated by a device to retrieve the data.
  • the memory component may be a nonvolatile storage device.
  • a processor and the memory component may cooperate with each other and with other components of a computer to perform the functionality described herein. Some of the functionality described herein can be accomplished with dedicated electronics hardwired to perform the described functions.
  • the filter cartridge may be constructed from a bio-waste material being biodegradable or compostable, such that after use the catalyst matrix substrate can be removed from within the apparatus and placed in a common green waste stream or used as compost. This means that the cartridge can be removed from the general waste stream which would otherwise end up in landfill.
  • the apparatus includes a replaceable cartridge including the substrate, which allows for easy slide-in I slide-out replacement, such as when indicated by a relevant sensor system, or via a regular replacement schedule.
  • the apparatus may include a prefilter or prefilters adjacent the inlet for removal of large particulate matter, such as dust and other large diameter pollutants.
  • the prefilter may also be configured to scavenge ammonia from the flow of air being drawn into the apparatus.
  • An inlet sensor may be positioned inwardly of the prefilter to monitor the flow rate.
  • An activated carbon filter/s may be positioned adjacent the outlet.
  • the activated carbon filter/s may be configured to remove ozone (O3), which may be a byproduct of the photocatalytic oxidation process.
  • the photocatalytic material comprises titanium dioxide, and other semi conductive components such as SnO? or Fe2Os coated on an organic matrix of the filter cartridge.
  • One side of the filter cartridge may be impregnated with an oxidation catalyst of precious metal such as Pd, Au, Pr or Ag, or a transition metal oxide of Mo, Nb, V, Ce or Cr.
  • a method of purifying or treating a flow of air including the steps of: providing an apparatus as hereinbefore described; operating the apparatus to undertake a photocatalytic oxidation process; and using a control system configured to modify the flow rate of the flow of air to thereby control the time period that a volume of air is in contact with the catalyst.
  • Figure 1 is a perspective view of the air purification or treatment apparatus of the present invention
  • Figure 2 is a perspective view of the air purification or treatment apparatus of Figure 1 , illustrating the removable screws for holding the filter cartridge cover closed;
  • Figure 3 is a cross-sectional view through A-A of the air purification or treatment apparatus of Figure 2;
  • Figure 4 is the cross-sectional view of Figure 3 illustrating the movement of air through the apparatus
  • Figure 5 is an exploded view of the air purification or treatment apparatus of Figure 1 ;
  • Figure 6 is a perspective view of the air purification or treatment apparatus of Figure 1 , illustrating the removal of the screws and opening of the filter cartridge cover;
  • Figure 7 is the perspective view of Figure 6 illustrating the partial removal of the filter cartridge
  • Figure 8 is the perspective view of Figure 7 illustrating the complete removal of the filter cartridge from within the baffle frame member
  • Figure 9 is a perspective view of the air purification or treatment apparatus of Figure 1 , illustrating the hinging of the filter cartridge cover and the outlet fan member;
  • Figure 10 is an end view of the air purification or treatment apparatus of Figure 1 illustrating the power inlet, fuse and power switch;
  • Figure 11 is an opposite end view of the air purification or treatment apparatus of Figure 1 illustrating the outlet fan member
  • Figure 12 is a front view air purification or treatment apparatus of Figure 1 illustrating the inlet grille attached over the inlet;
  • Figure 13 is a top view of the air purification or treatment apparatus of Figure 1 illustrating the filter cartridge cover
  • Figure 14 is an underside view of the air purification or treatment apparatus of Figure 1 ;
  • Figure 15 is a perspective view of one embodiment of the filter cartridge;
  • Figure 16 is a partial cross-sectional view through B-B of the filter cartridge of
  • Figure 15 positioned adjacent a bank of UV LED lights.
  • the air purification or treatment apparatus 10 includes a housing 12, having a UV light source 14 and filter cartridge 16 retained therein.
  • the filter cartridge 16 can be accessed through a filter cartridge cover 18, for maintenance or replacement purposes.
  • the filter cartridge cover 18 is attached to the housing 12 by way of hinges 20 and is held closed by removable screws 22, as illustrated in Figures 1 and 2.
  • An inlet grille 24 is attached to the housing 12 over an air inlet 26.
  • An outlet fan member 28, is hingedly connected to the housing 12 by way of hinge 30 and held closed by screws 32.
  • the outlet fan member 28 is attached over an air outlet 34, when is a closed configuration.
  • the housing 12 is generally divided into three compartments: an electronics compartment 36 for retaining the wiring of the power components 38; an inlet compartment 40 positioned between the air inlet 26 and a first side 42 of the filter cartridge 16; and an outlet compartment or PCO process compartment 44 positioned between a second side 46 of the filter cartridge 16 and the air outlet 34.
  • the UV light source 14, comprising a bank of UV LED lights, is positioned within the outlet compartment 44 and is configured to irradiate the second side 46 of the filter cartridge 16.
  • the filter cartridge 16 is coated in the catalyst substance 48 adjacent the second side 46 thereof and can be irradiated by the UV light source 14.
  • Figure 4 illustrates the movement of the air through the inlet 26 into the inlet compartment 40.
  • the flow of air indicated by the arrows, then moves in through the first side 42 of the filter cartridge 16 and passes out through the second side 46, which is coated in the catalyst substance 48, into the outlet compartment 44.
  • the flow of air then moves out through the outlet 34 and exits the apparatus 10.
  • the catalytic reaction produces hydroxyl radicals that non-selectively oxidise organic compounds within the flow of air adjacent the second side 46 of the filter cartridge 16.
  • the outlet compartment 44 may be referred to as a photocatalytic oxidation chamber (PCO chamber), which is where the PCO process or a substantial portion thereof occurs, wherein the volatile organic compounds (VOCs), bacteria, mould and/or fungal spores are treated by the photocatalytic oxidation (PCO).
  • PCO chamber photocatalytic oxidation chamber
  • the housing 12 includes a number of panels and components.
  • the fasteners and some components will not be described in detail.
  • Some of the fixing means, in the form of bolts or screws have not been illustrated so as to not obscure details of the invention, however the reader will appreciate that such fixing means are configured to engage one or more of the respective holes shown in the figures.
  • the reader will appreciate that the invention is not limited to the illustrated housing and other configurations are possible.
  • the housing 12 includes side wall panels 50, 52, base panel 54, upper panel 56, internal frame members 58, 60, 62, 64, and baffle frame member 66.
  • the inlet grille 24 is attachable to the side wall panel 50, and the filter cartridge cover 18 is attached to the upper panel 56 by way of hinges 20 and spacers 68.
  • the filter cartridge 16 is configured to slidably engage the baffle frame member 66 and can pass through opening 70 in the upper panel 56, as will be described in relation to Figures 6 to 8.
  • the outlet fan member 28 engages respective cooperating recesses 72 is the base panel 54 and upper panel 56 and are attached thereto by respective fixing means.
  • the outlet fan member 28 includes an outlet fan 74, gasket 76 and outlet grille 78.
  • FIGS 6 to 8 illustrate the removal of the filter cartridge 16 from within the apparatus 10.
  • the three screws 22 are removed such that the filter cartridge cover 18 can be pivoted about hinges 20.
  • a user can then grasp the filter cartridge 16 at either end by utilising the finger slots 80 and slidably remove the filter cartridge 16 from within the baffle frame member 66. In this way the filter cartridge 16 can be easily removed and replaced.
  • both the filter cartridge cover 18 and outlet grille 78 are hingedly connected to the housing 12 to permit access to the internal space of the apparatus 10.
  • the UV light source 14 may also be accessed through a lamp access port (not shown) or may be accessible through the opening formed when the filter cartridge cover 18 or outlet fan member 28 are open.
  • Figure 10 illustrates an end view of the apparatus 10 illustrating the power components 38, comprising the power inlet 82, fuse 84 and power switch 86.
  • Figure 11 illustrates the opposite end of the apparatus 10 illustrating the position of the outlet fan member 28.
  • Figures 12 to 14 illustrate the front, top and underside views of the apparatus 10 showing the respective positions of the filter cartridge cover 18, power components 38, inlet grille 24 and outlet grille 78.
  • FIGs 15 and 16 illustrate one possible configuration of the filter cartridge 16, comprising a plurality of corrugated fibrous cellulose sheets forming an array of hollow tubes or open cells therebetween.
  • the filter cartridge 16 produces turbulent flow of air rather than laminar flow.
  • the figures are provided for illustration purposes only and any type of open cell, open honeycomb structure or fibrous sheet could be used without departing from the scope of the invention.
  • the arrows indicating the movement of air through the filter are straight, this should not be interpreted as laminar air flow, since the configuration of the filter of the preferred embodiments would result in turbulent air flow through the filter.
  • the filter cartridge 16 could be understood to be a matrix delineating multiple pores or passageways that permit the air to flow therethrough, thereby maximising surface area contact.
  • the volatile organic compounds VOCs
  • bacteria, viruses, mould, fungal spores and/or other pathogens are treated by the photocatalytic oxidation (PCO) process adjacent the second side of the filter cartridge 16.
  • PCO photocatalytic oxid
  • the filter cartridge 16 includes a first side 42 which is positioned adjacent the inlet compartment 40 and a second side 46 positioned adjacent the outlet compartment 44.
  • the catalyst substance coating 48 is applied to the filter cartridge 16 adjacent the second side 46 which is irradiated 88 by the UV light source 14.
  • the configuration of the filter cartridge 16 may reduce the need for prefilters, however the reader will appreciate that in some circumstances prefilters may be used.
  • An activated carbon outlet filter (not shown) may also be positioned adjacent the air outlet 34.
  • the activated carbon outlet filter may be configured to act like a sponge wherein any odour-causing vapours are captured. All filters may be replaceable.
  • sensors may be used to measure air flow, filter efficiency, appropriate fan speed and other quantitative factors, to thereby provide the optimum time for photocatalytic oxidation within the PCO process chamber 44.
  • the use of sensors and controllers may assist in the optimal operation of the apparatus 10 and can be used to identify carcinogenic compounds in the outgoing air flow or component malfunction/lifespan.
  • the power components 38 and circuitry may be configured to control the outlet fan 74 and, in some circumstances, other components, such as but not limited to sensors or transmitters.
  • the power components 38 of the present embodiment are configured to operate the outlet fan 74 to thereby draw air in through the air inlet 26.
  • the larger particulate matter 90 is filtered by the fibrous cellulose material adjacent the first side 42 of the filter cartridge 16, this includes dust and other large diameter pollutants which could otherwise foul or contaminate the catalyst substance coating 48, which would influence its efficiency.
  • the apparatus is configured to purify or treat a flow of air passing therethrough by way of photocatalytic oxidation, wherein a single replaceable, biodegradable filter cartridge is used.
  • the speed with which the air is passed through the apparatus may also be monitored and controlled to optimise the photocatalytic oxidation process and minimise the generation of carcinogenic compounds.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

Un appareil de purification ou de traitement d'air pourvu d'un boîtier comprenant une entrée adjacente à un compartiment d'entrée et une sortie adjacente à un compartiment de sortie et une source de lumière UV positionnée à l'intérieur ou à proximité du compartiment de sortie. L'appareil comprend en outre une cartouche filtrante comprenant un premier côté pouvant être positionné à côté du compartiment d'entrée et un second côté pouvant être positionné à côté du compartiment de sortie, la source de lumière UV étant configurée pour irradier au moins le second côté de la cartouche filtrante. Un revêtement de substance catalytique est appliqué sensiblement au niveau et à proximité du second côté de la cartouche filtrante, la matière particulaire plus grande dans l'entrée d'air provenant du compartiment d'entrée étant capturée au niveau et à côté du premier côté de la cartouche filtrante pour empêcher ainsi la contamination ou l'encrassement du revêtement de substance catalytique au niveau et à proximité du second côté de la cartouche filtrante.
PCT/AU2022/050042 2021-02-04 2022-01-28 Appareil de purification d'air WO2022165548A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2021900253A AU2021900253A0 (en) 2021-02-04 Air purification device
AU2021900253 2021-02-04

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WO2022165548A1 true WO2022165548A1 (fr) 2022-08-11

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955208A (en) * 1988-01-22 1990-09-11 Hitachi, Ltd. Refrigerating apparatus having a stink removing device
WO1996037281A1 (fr) * 1995-05-26 1996-11-28 Minnesota Mining And Manufacturing Company Filtre eliminant les odeurs, active par des uv et pouvant se placer sur un plan de travail
KR102148123B1 (ko) * 2019-11-12 2020-08-26 퓨리바이드 주식회사 복합 필터링모듈 및 이를 이용한 공기 정화장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4955208A (en) * 1988-01-22 1990-09-11 Hitachi, Ltd. Refrigerating apparatus having a stink removing device
WO1996037281A1 (fr) * 1995-05-26 1996-11-28 Minnesota Mining And Manufacturing Company Filtre eliminant les odeurs, active par des uv et pouvant se placer sur un plan de travail
KR102148123B1 (ko) * 2019-11-12 2020-08-26 퓨리바이드 주식회사 복합 필터링모듈 및 이를 이용한 공기 정화장치

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