EP4237016A1 - Device for purifying a fluid comprising suspended particles - Google Patents

Device for purifying a fluid comprising suspended particles

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Publication number
EP4237016A1
EP4237016A1 EP21810408.1A EP21810408A EP4237016A1 EP 4237016 A1 EP4237016 A1 EP 4237016A1 EP 21810408 A EP21810408 A EP 21810408A EP 4237016 A1 EP4237016 A1 EP 4237016A1
Authority
EP
European Patent Office
Prior art keywords
particles
purification
suspension
face
sound wave
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.)
Withdrawn
Application number
EP21810408.1A
Other languages
German (de)
French (fr)
Inventor
Marc Durand
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP4237016A1 publication Critical patent/EP4237016A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/007—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by irradiation
    • 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
    • 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—Ultra-violet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/005—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by heat treatment
    • 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
    • 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
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/702—Hydrocarbons
    • B01D2257/7027—Aromatic hydrocarbons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/45—Gas separation or purification devices adapted for specific applications
    • B01D2259/4508—Gas separation or purification devices adapted for specific applications for cleaning air in buildings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light

Definitions

  • TITLE Device for purifying a fluid comprising particles in suspension
  • the present invention relates to a device for purifying a fluid comprising particles in suspension and its associated method. More specifically, the present invention relates to an air purification device comprising aerosols such as SARS-CoV-2 for example.
  • the document EP0627263 describes an apparatus configured to purify polluted air comprising a polluted air inlet path, a polluted air treatment section as well as an outlet path for the depolluted air.
  • An object of EP0627263 is to provide an apparatus for purifying contaminated air which is capable of significantly reducing particles such as dust or the like contained in the air, particles such as soot or the like contained in exhaust gases. exhaust from a combustion engine and atmospheric pollutants such as NOx or the like.
  • a contaminated air purification device is provided.
  • the contaminated air purifying apparatus includes a contaminated air inlet path, an electrifying mesh section containing a porous conductive material and connected to a negative electrode of a DC power supply, and a purification comprising a layer containing a conductive material and connected to a positive terminal of a direct current supply electrode.
  • the electrifying mesh section and the purifying filter section are in turn arranged in a contaminated air flow direction in the contaminated air inlet path.
  • the present invention aims to solve all or part of the drawbacks mentioned above.
  • the present invention relates to a device for purifying a fluid comprising particles in suspension, said device comprising:
  • a purification unit comprising a purification face configured to receive the particles in suspension and a treatment element configured to treat said particles in suspension received by the purification face;
  • a displacement unit comprising a sound wave generation unit configured to generate a sound wave, in which the generated sound wave is adapted to move the particles in suspension towards the purification face.
  • Such a device makes it possible to purify the fluid by treating the suspended particles included in said fluid.
  • Such a device makes it possible to purify the fluid much faster than a standard purification device insofar as the sound wave generation unit makes it possible to actively direct the particles in suspension towards the purification face of the purification unit .
  • the fluid is in the gaseous state such as air for example.
  • the particles in suspension are aerosols of all kinds such as volatile organic compounds for example.
  • the aerosols, or particles in suspension have a diameter comprised between 10 nm and 20 micron.
  • the aerosols, or particles in suspension have a diameter comprised between 50 nm and 5 micron.
  • the aerosols, or particles in suspension have a diameter comprised between 50 nm and 10 micron.
  • the processing carried out by the processing element can be of any kind such that at least one of the following processing operations:
  • HEPA filter such as an H13 medical filter for example
  • an active filter such as a carbon filter comprising, for example, formaldehyde or benzene.
  • the sound wave generated has a frequency comprised between 20 and 400Hz and preferably between 50 and 150Hz, preferably 100Hz. Indeed, surprisingly, we measure a faster displacement of particles in suspension at a frequency of 100Hz.
  • such a device is suitable for purifying a fluid comprising particles in suspension in spaces of different sizes.
  • the dimensioning of the device will make it possible to purify a fluid in a restricted space such as the space between a surgical mask and the face of the user wearing said mask or even to purify a fluid in an industrial building of several thousand m 3 .
  • the sound wave generated is adapted to move the particles in suspension on the purification face so as to cause said particles in suspension to impact on said purification face.
  • the displacement unit comprises a flow generation unit configured to generate a flow in the fluid comprising the particles in suspension.
  • the flow generation unit can be of any kind, such as a fan for example.
  • Such a configuration makes it possible to agitate the particles in suspension and thus maximize the quantity of particles in suspension displaced by the sound wave in the direction of the purification face.
  • the purification device When the purification device is used in a closed space comprising a fluid, such a configuration also makes it possible to generate particles in suspension on the basis of particles already present on surfaces of the closed space and/or any other element, on which would be placed particles, present in the closed space. The particles are thus displaced and become suspended in the fluid. In this way, the purification device is capable of purifying the fluid contained in the closed space, but also of purifying the closed space of particles in suspension which risk appearing subsequently.
  • the sound wave generation unit is configured to generate a sound wave passing through the flow, in which the generated sound wave is adapted to move the particles in suspension, present in the flow, on the face of purification.
  • the treatment element comprises a heating unit configured to heat the particles in suspension received by the purification face.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
  • eliminating can mean meaning killing, destroying, inactivating or even deactivating, for example.
  • the heating unit is configured to heat the suspended particles received by the purification face to a temperature between 60 and 70°C.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, CoV (volatile organic compound) and more particularly SARS-CoV-2 without however consuming a large amount of energy.
  • organic compounds such as viruses, bacteria or mites, CoV (volatile organic compound) and more particularly SARS-CoV-2 without however consuming a large amount of energy.
  • Such an arrangement thus makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, and more particularly SARS-CoV-2 so as to obtain biosafety before any manipulation of the device by a user.
  • This allows for example a replacement without danger for the user of the purification face when the latter is removable for example.
  • the purification face is a removable filter.
  • the purification device comprises a pre-filter positioned so as to filter at least some of the suspended particles displaced by the sound wave before said suspended particles are received by the purification face during the emitting a sound wave from the sound wave generating unit.
  • Such an arrangement makes it possible to filter the largest suspended particles and thus limit the particles received by the purification face in order to limit the number of particles to be treated by the treatment element.
  • the processing element comprises a light emitting unit configured to emit light on the particles in suspension received by the purification face, in which the light emitted is in the ultraviolet spectrum .
  • light in the ultraviolet spectrum means any electromagnetic radiation having a wavelength between 100 nm and 400 nm.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
  • the light emitted has a wavelength of between 207 and 260 nm and preferably 222 nm.
  • the light emitted has a wavelength of between 207 and 222 nm and preferably 222 nm.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example, and this without danger for human beings. Indeed, a light having such a wavelength does not penetrate the epidermis.
  • the emitted light has a wavelength of 254 nm.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example even more effectively.
  • a light having a wavelength of 222nm is particularly suitable for eliminating SARS-CoV-2 without being harmful to a user, for example.
  • the displacement unit includes a negative ion generating element configured to generate negative ions so as to displace suspended particles on the purification face.
  • the invention also relates to a method for purifying a fluid comprising particles in suspension comprising the following steps:
  • the processing step comprises a step of heating the particles in suspension received by the purification face.
  • the processing step comprises a step of emitting light on the particles in suspension received by the purification face.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
  • the method comprises a step of pre-filtering the particles in suspension displaced by the sound wave before the particles in suspension are received by the purification face.
  • the prefiltration step is carried out using a prefilter.
  • Such an arrangement makes it possible to filter the largest suspended particles and thus limit the number of particles to be treated by the treatment element.
  • the method comprises a step of generating negative ions so as to move the particles in suspension on the purification face.
  • the step of generating a sound wave and the step of processing the particles are repeated.
  • Such an arrangement makes it possible to move more suspended particles on the purification face while ensuring that each suspended particle received by the purification face is treated by the treatment element.
  • FIG. 1 shows a device for purifying a fluid comprising suspended particles in accordance with the present invention
  • FIG. 2 shows the steps of a process for purifying a fluid comprising particles in suspension in accordance with the present invention.
  • FIG. 1 represents a device for purifying a fluid in the gaseous state, and more particularly air comprising particles in suspension 40 such as organic compounds in the form of aerosols.
  • the aerosols, or particles in suspension 40 have a diameter comprised between 50 nm micron and 20 micron or more specifically between 2.5 micron and 10 micron.
  • the purification device comprises a purification unit 10 comprising a purification face 12 configured to receive the particles in suspension 40 and a treatment element 14 configured to treat said particles in suspension 40 received by the purification face 12.
  • the processing that can be performed by the processing element 14 can be of any kind such as at least one of the following processing:
  • HEPA filter such as an H13 medical filter for example
  • an active filter such as a carbon filter comprising, for example, formaldehyde or benzene.
  • the processing element 14 comprises a heating unit 16 configured to heat the particles in suspension 40 received by the purification face 12 to a temperature between 60 and 70°C.
  • a heating unit 16 configured to heat the particles in suspension 40 received by the purification face 12 to a temperature between 60 and 70°C.
  • eliminating can mean meaning killing, destroying, inactivating or even deactivating, for example.
  • a temperature between 60 and 70°C makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, and more particularly SARS-CoV-2, without consuming a large amount of energy.
  • the processing element also includes a light-emitting unit 18, alone or in addition to the heating unit 16.
  • the light-emitting unit 18 is configured to emit light on the suspended particles 40 received by the purification face 22, in which the light emitted is in the ultraviolet spectrum.
  • light in the ultraviolet spectrum means any electromagnetic radiation having a wavelength between lOnm and 400nm.
  • the light emitted by the light emitting unit 18 has a wavelength comprised between 207 and 254 nm and preferably 222 nm.
  • Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example, and this without danger to human beings.
  • a light having such a wavelength does not penetrate the epidermis, moreover, a light having a wavelength of 222 nm is particularly suitable for eliminating certain viruses and bacteria and particularly SARS-CoV-2.
  • the wavelength of the preferred emitted light is 254 nm, in fact, such a wavelength allows better elimination of certain viruses and bacteria and particularly SARS-CoV-2.
  • the purification face 12 comprises a unit for generating a magnetic field configured to keep the particles in suspension 40 received by said purification face 12 in physical or electromagnetic contact with the purification face 12. Such arrangement makes it possible to prevent particles in suspension 40 from escaping from the purification face.
  • the purification device also comprises a displacement unit 30 comprising a sound wave generation unit 31 configured to generate a sound wave 32, in which the sound wave 32 generated is adapted to move the suspended particles 40 in the direction of the purification face 12, and this in such a way as to cause said particles in suspension 40 to impact on said purification face 12.
  • a displacement unit 30 comprising a sound wave generation unit 31 configured to generate a sound wave 32, in which the sound wave 32 generated is adapted to move the suspended particles 40 in the direction of the purification face 12, and this in such a way as to cause said particles in suspension 40 to impact on said purification face 12.
  • a sound wave 32 particularly suitable for moving the particles in suspension 40 and causing them to impact on the purification face 12 is a sound wave 32 generated at a frequency between 20 and 400Hz and preferably 100Hz. Indeed, surprisingly, we measure a faster displacement of suspended particles 40 with a sound wave 32 generated at a frequency of 100Hz.
  • Such a device makes it possible to purify the fluid by treating the particles in suspension 40 included in said fluid. Such a device also makes it possible to purify the fluid much more quickly than a standard purification device insofar as the unit of generation of sound waves 30 makes it possible to actively direct the particles in suspension 40 towards the purification face 12 of the purification unit 10.
  • the purification device comprises a negative ion generating element 36 configured to generate negative ions so as to move the particles in suspension 40 on the purification face 12.
  • a negative ion generating element 36 configured to generate negative ions so as to move the particles in suspension 40 on the purification face 12.
  • the purification device comprises a pre-filter 22 positioned so as to filter at least a portion of the particles in suspension 40 displaced by the sound wave 32 and/or another sub-means, such as the flow previously described or else the generation element of negative ions 36, before said particles in suspension 40 are received by the purification face 12 during the emission of a sound wave 32 by the sound wave generation unit 31.
  • a pre-filter 22 positioned so as to filter at least a portion of the particles in suspension 40 displaced by the sound wave 32 and/or another sub-means, such as the flow previously described or else the generation element of negative ions 36, before said particles in suspension 40 are received by the purification face 12 during the emission of a sound wave 32 by the sound wave generation unit 31.
  • the purification device comprises a flow generation unit 34 configured to generate a flow in the fluid comprising the particles in suspension 40.
  • the flow generation unit 34 can be of any kind such as a fan for example.
  • Such a configuration makes it possible to agitate the suspended particles 40 and thus maximize the quantity of suspended particles 40 displaced by the sound wave 32.
  • the purification device is used in a closed space 42 comprising a fluid, such a configuration allows also to generate particles in suspension 40 on the basis of particles already present on surfaces of the enclosed space 42 and/or any other element, on which particles would be placed, present in the enclosed space 42. The particles are thus displaced and become suspended in the fluid.
  • the purification device is capable of purifying the fluid contained in the closed space, but also of purifying the closed space of particles in suspension 40 which risk appearing, or being formed, in the future.
  • the sound wave generation unit 31 is configured to generate a sound wave 32 passing through the flow, in which the sound wave 31 generated is adapted to move the suspended particles 40, present in the flow, on the purification face. 12. Such an arrangement makes it possible to purify the fluid more quickly while limiting the energy consumption of the generation unit of sound waves 31. Indeed, a sound wave 32 crossing the flow makes it possible to move a greater quantity of particles in suspension 40.
  • the purification device comprises a receiving enclosure comprising the purification unit 10 as previously described as well as the displacement unit as previously described.
  • the receiving enclosure comprises a first orifice crossing right through a face of the enclosure and a second orifice also crossing right through a face of the enclosure such that the fluid comprising the particles in suspension 40 is able to s flow through the first orifice as well as through the second orifice.
  • the flow generating unit 34 is configured to generate a flow in the fluid comprising the particles in suspension such that the flow flows from the first orifice to the second orifice.
  • Such an arrangement allows the movement unit 30 to move the particles in suspension 40, present in the flow flowing from the first orifice to the second orifice, in the direction of the purification face 12 and thus allows the treatment element 14 to treat said suspended particles 40 passing through the enclosure.
  • the flow generation unit 34 is placed at the level of the second orifice.
  • the displacement unit 30 is configured to move the suspended particles 40 present in the flow s flowing from the first orifice to the second orifice and therefore before the second orifice.
  • Such an arrangement makes it possible to avoid the contamination of the emission unit of a flow 34.
  • the invention also relates to a method for purifying a fluid comprising particles in suspension 40.
  • a method for purifying a fluid comprising particles in suspension 40 is implemented by any device such as the purification device described above.
  • the purification method includes a step of generating a sound wave 52, in which the sound wave 32 generated is adapted to move the particles in suspension 40 on a purification face 12 of a purification unit 10.
  • the purification method also includes a step 54 of processing the particles in suspension received by the purification face 12 by a processing element 14.
  • the processing step 54 includes a step of heater 58 of the particles in suspension 40 received by the purification face 12.
  • the treatment step also includes a step 60 for emitting light on the particles in suspension 40 received by the purification face 12 replacing or in addition to the heating step 58.
  • a step 60 for emitting light on the particles in suspension 40 received by the purification face 12 replacing or in addition to the heating step 58.
  • the method comprises a prefiltration step 56 of the particles in suspension 40 displaced by the sound wave 32 before the particles in suspension 40 are received by the purification face 12.
  • This prefiltration step is 56 is carried out using a prefilter 22.
  • Such an arrangement makes it possible to filter the largest suspended particles 40 and thus limit the number of particles to be treated by the treatment element.
  • the method comprises a step of generating negative ions 62 so as to move the particles in suspension 40 on the purification face 12.
  • a step of generating negative ions 62 so as to move the particles in suspension 40 on the purification face 12.

Abstract

A device for purifying a fluid comprising suspended particles. The device comprises a purification unit, itself comprising a purification surface configured to receive the suspended particles, and a treatment element configured to treat said suspended particles received by the purification surface. The device also comprises a sound wave generating unit configured to generate a sound wave, wherein the sound wave generated is suitable for moving the suspended particles to the purification surface.

Description

TITRE : Dispositif de purification d'un fluide comprenant des particules en suspension TITLE: Device for purifying a fluid comprising particles in suspension
Domaine de l’invention Field of invention
La présente invention se rapporte à un dispositif de purification d'un fluide comprenant des particules en suspension et son procédé associé. Plus spécifiquement, la présente invention se rapporte à un dispositif de purification d'air comprenant des aérosols tels que le SARS-CoV-2 par exemple. The present invention relates to a device for purifying a fluid comprising particles in suspension and its associated method. More specifically, the present invention relates to an air purification device comprising aerosols such as SARS-CoV-2 for example.
Art antérieur Prior art
De manière connue, le document EP0627263 décrit un appareil configuré pour purifier un air pollué comprenant un trajet d'arrivé d'air pollué, une section de traitement de l'air pollué ainsi qu'un trajet de sortie de l'air dépolluée. In a known manner, the document EP0627263 describes an apparatus configured to purify polluted air comprising a polluted air inlet path, a polluted air treatment section as well as an outlet path for the depolluted air.
Un objet de EP0627263 est de fournir un appareil de purification d'air contaminé qui est capable de réduire de manière significative les particules telles que la poussière ou similaires contenues dans l'air, les particules telles que la suie ou similaires contenues dans les gaz d'échappement d'un moteur à combustion et les polluants atmosphériques tels que NOx ou similaire. Pour ce faire, un appareil de purification d'air contaminé est fourni. L'appareil de purification d'air contaminé comprend un trajet d'arrivée d'air contaminé, une section de maillage électrisante contenant un matériau conducteur poreux et connectée à une électrode négative d'une alimentation en courant continu, et une section de filtre de purification comprenant une couche contenant un matériau conducteur et connectée à une borne positive d'une électrode d'alimentation en courant continu. La section de maillage électrisante et la section de filtre de purification sont agencées à leur tour dans une direction d'écoulement d'air contaminé dans le trajet d'entrée d'air contaminé. An object of EP0627263 is to provide an apparatus for purifying contaminated air which is capable of significantly reducing particles such as dust or the like contained in the air, particles such as soot or the like contained in exhaust gases. exhaust from a combustion engine and atmospheric pollutants such as NOx or the like. To do this, a contaminated air purification device is provided. The contaminated air purifying apparatus includes a contaminated air inlet path, an electrifying mesh section containing a porous conductive material and connected to a negative electrode of a DC power supply, and a purification comprising a layer containing a conductive material and connected to a positive terminal of a direct current supply electrode. The electrifying mesh section and the purifying filter section are in turn arranged in a contaminated air flow direction in the contaminated air inlet path.
Toutefois, ces solutions ne donnent pas une entière satisfaction. However, these solutions do not give complete satisfaction.
En effet, un tel système nécessite d'envoyer de l'air polluée dans le système et engendre une forte consommation d'énergie. De plus, il est impossible de s'assurer que tout l'air polluée est traité. Indeed, such a system requires sending polluted air into the system and generates high energy consumption. Moreover, it is impossible to ensure that all the polluted air is treated.
La présente invention a pour but de résoudre tout ou partie des inconvénients mentionnés ci-dessus. The present invention aims to solve all or part of the drawbacks mentioned above.
Exposé de l'invention A cet effet, la présente invention concerne un dispositif de purification d'un fluide comprenant des particules en suspension, ledit dispositif comprenant : Disclosure of Invention To this end, the present invention relates to a device for purifying a fluid comprising particles in suspension, said device comprising:
• une unité de purification comprenant une face de purification configurée pour recevoir les particules en suspension et un élément de traitement configuré pour traiter lesdits particules en suspension reçues par la face de purification; • a purification unit comprising a purification face configured to receive the particles in suspension and a treatment element configured to treat said particles in suspension received by the purification face;
• une unité de déplacement comprenant une unité de génération d'ondes sonores configurée pour générer une onde sonore, dans laquelle l'onde sonore générée est adaptée pour déplacer les particules en suspension en direction de la face de purification. • a displacement unit comprising a sound wave generation unit configured to generate a sound wave, in which the generated sound wave is adapted to move the particles in suspension towards the purification face.
Un tel dispositif permet de purifier le fluide par le traitement des particules en suspension compris dans ledit fluide. Such a device makes it possible to purify the fluid by treating the suspended particles included in said fluid.
Un tel dispositif permet de purifier le fluide bien plus rapidement qu'un dispositif de purification standard dans la mesure ou l'unité de génération d'ondes sonores permet de diriger activement les particules en suspension vers la face de purification de l'unité de purification. Such a device makes it possible to purify the fluid much faster than a standard purification device insofar as the sound wave generation unit makes it possible to actively direct the particles in suspension towards the purification face of the purification unit .
Selon un mode de réalisation, le fluide est à l'état gazeux tel que de l'air par exemple. According to one embodiment, the fluid is in the gaseous state such as air for example.
Selon un mode de réalisation, les particules en suspension sont des aérosols de toutes sortes telles que des composés organiques volatiles par exemple. According to one embodiment, the particles in suspension are aerosols of all kinds such as volatile organic compounds for example.
Au sens de la présente invention, les aérosols, ou particules en suspension ont un diamètre comprit entre 10 nm et 20 micron. Within the meaning of the present invention, the aerosols, or particles in suspension have a diameter comprised between 10 nm and 20 micron.
Au sens de la présente invention, les aérosols, ou particules en suspension ont un diamètre comprit entre 50 nm et 5 micron. Within the meaning of the present invention, the aerosols, or particles in suspension have a diameter comprised between 50 nm and 5 micron.
Au sens de la présente invention, les aérosols, ou particules en suspension ont un diamètre comprit entre 50 nm et 10 micron. Within the meaning of the present invention, the aerosols, or particles in suspension have a diameter comprised between 50 nm and 10 micron.
Selon un mode de réalisation, le traitement réalisé par l'élément de traitement peut être de toute sorte telle que au moins un des traitements suivants : According to one embodiment, the processing carried out by the processing element can be of any kind such that at least one of the following processing operations:
• élimination des particules par la chaleur ; • removal of particles by heat;
• élimination des particules par émission de lumière ; • elimination of particles by light emission;
• filtration des particules à l'aide d'un filtre HEPA, tel qu'un filtre médical H13 par exemple ; et • filtration of particles using a HEPA filter, such as an H13 medical filter for example; and
• élimination des particules et odeurs à l'aide d'un filtre actif tel qu'un filtre à charbon comprenant par exemple du formaldéhyde ou du benzène. • elimination of particles and odors using an active filter such as a carbon filter comprising, for example, formaldehyde or benzene.
Selon un mode de réalisation, l'onde sonore générée a une fréquence comprise entre 20 et 400Hz et de préférence entre 50 et 150Hz, de préférence 100Hz. En effet, de manière surprenante, nous mesurons un déplacement plus rapide des particules en suspension à une fréquence de 100Hz. According to one embodiment, the sound wave generated has a frequency comprised between 20 and 400Hz and preferably between 50 and 150Hz, preferably 100Hz. Indeed, surprisingly, we measure a faster displacement of particles in suspension at a frequency of 100Hz.
Selon un mode de réalisation, un tel dispositif est adapté pour purifier un fluide comprenant des particules en suspension dans des espaces de tailles différentes. En effet, le dimensionnement du dispositif va permettre de purifier un fluide dans un espace restreint tel que l'espace entre un masque chirurgical et le visage de l'utilisateur portant ledit masque ou encore de purifier un fluide dans un bâtiment industriel de plusieurs milliers de m3. According to one embodiment, such a device is suitable for purifying a fluid comprising particles in suspension in spaces of different sizes. Indeed, the dimensioning of the device will make it possible to purify a fluid in a restricted space such as the space between a surgical mask and the face of the user wearing said mask or even to purify a fluid in an industrial building of several thousand m 3 .
Selon un mode de réalisation, l'onde sonore générée est adaptée pour déplacer les particules en suspension sur la face de purification de manière à faire impacter lesdites particules en suspension sur ladite face de purification. According to one embodiment, the sound wave generated is adapted to move the particles in suspension on the purification face so as to cause said particles in suspension to impact on said purification face.
Une telle configuration permet de s'assurer que les particules en suspension sont bien présentes sur la face de purification et permet ainsi une purification améliorée. Such a configuration makes it possible to ensure that the particles in suspension are indeed present on the purification face and thus allows improved purification.
Selon un mode de réalisation, l'unité de déplacement comprend une unité de génération d'un flux configurée pour générer un flux dans le fluide comprenant les particules en suspension. According to one embodiment, the displacement unit comprises a flow generation unit configured to generate a flow in the fluid comprising the particles in suspension.
Selon un mode de réalisation, l'unité de génération d'un flux peut être de toute sorte telle qu'un ventilateur par exemple. According to one embodiment, the flow generation unit can be of any kind, such as a fan for example.
Une telle configuration permet d'agiter les particules en suspension et ainsi maximiser la quantité de particules en suspension déplacées par l'onde sonore en direction de la face de purification. Such a configuration makes it possible to agitate the particles in suspension and thus maximize the quantity of particles in suspension displaced by the sound wave in the direction of the purification face.
Lorsque le dispositif de purification est utilisé dans un espace clôt comprenant un fluide, une telle configuration permet également de générer des particules en suspension sur la base de particules déjà présentes sur des surfaces de l'espace clôt et/ou un quelconque autre élément, sur lequel serait posé des particules, présent dans l'espace clôt. Les particules sont ainsi déplacées et se retrouvent en suspension dans le fluide. De cette manière, le dispositif de purification est apte à purifier le fluide contenu dans l'espace clôt, mais également de purifier l'espace clôt des particules en suspension qui risquent d'apparaitre par la suite. When the purification device is used in a closed space comprising a fluid, such a configuration also makes it possible to generate particles in suspension on the basis of particles already present on surfaces of the closed space and/or any other element, on which would be placed particles, present in the closed space. The particles are thus displaced and become suspended in the fluid. In this way, the purification device is capable of purifying the fluid contained in the closed space, but also of purifying the closed space of particles in suspension which risk appearing subsequently.
Selon un mode de réalisation, l'unité de génération d'ondes sonores est configurée pour générer une onde sonore traversant le flux, dans laquelle l'onde sonore générée est adaptée pour déplacer les particules en suspension, présentes dans le flux, sur la face de purification. According to one embodiment, the sound wave generation unit is configured to generate a sound wave passing through the flow, in which the generated sound wave is adapted to move the particles in suspension, present in the flow, on the face of purification.
Une telle disposition permet de purifier le fluide plus rapidement tout en limitant la consommation en énergie de l'unité de génération d'ondes sonores. En effet, une onde sonore traversant le flux permet de déplacer une plus grande quantité de particules en suspension. Such an arrangement makes it possible to purify the fluid more quickly while limiting the energy consumption of the sound wave generation unit. In indeed, a sound wave crossing the flow makes it possible to move a greater quantity of particles in suspension.
Selon un mode de réalisation, l'élément de traitement comprend une unité de chauffage configurée pour chauffer les particules en suspension reçues par la face de purification. According to one embodiment, the treatment element comprises a heating unit configured to heat the particles in suspension received by the purification face.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
Au sens de la présente invention, éliminer peut signifier signifie tuer, détruire, inactiver ou encore désactivé par exemple. Within the meaning of the present invention, eliminating can mean meaning killing, destroying, inactivating or even deactivating, for example.
Selon un mode de réalisation, l'unité de chauffage est configurée pour chauffer les particules en suspension reçues par la face de purification à une température comprise entre 60 et 70°C. According to one embodiment, the heating unit is configured to heat the suspended particles received by the purification face to a temperature between 60 and 70°C.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens, CoV (composé organique volatile) et plus particulièrement le SARS-CoV-2 sans pour autant consommer une importante quantité d'énergie. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, CoV (volatile organic compound) and more particularly SARS-CoV-2 without however consuming a large amount of energy.
Une telle disposition permet ainsi d'éliminer certains composés organiques tels que des virus, bactéries ou acariens, et plus particulièrement le SARS- CoV-2 de sorte à obtenir une biosécurité avant toute manipulation du dispositif par un utilisateur. Cela permet par exemple un remplacement sans danger pour l'utilisateur de la face de purification lorsque celle-ci est amovible par exemple. En particulier, lorsque la face de purification est un filtre amovible. Such an arrangement thus makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, and more particularly SARS-CoV-2 so as to obtain biosafety before any manipulation of the device by a user. This allows for example a replacement without danger for the user of the purification face when the latter is removable for example. In particular, when the purification face is a removable filter.
Selon un mode de réalisation, le dispositif de purification comprend un préfiltre positionné de sorte à filtrer au moins une partie des particules en suspension déplacées par l'onde sonore avant que lesdites particules en suspension ne soient reçues par la face de purification lors de l'émission d'une onde sonore par l'unité de génération d'ondes sonores. According to one embodiment, the purification device comprises a pre-filter positioned so as to filter at least some of the suspended particles displaced by the sound wave before said suspended particles are received by the purification face during the emitting a sound wave from the sound wave generating unit.
Une telle disposition permet de filtrer les particules en suspensions les plus grosses et ainsi limiter les particules reçues par la face de purification afin de limiter le nombre de particules à traiter par l'élément de traitement. Such an arrangement makes it possible to filter the largest suspended particles and thus limit the particles received by the purification face in order to limit the number of particles to be treated by the treatment element.
Selon un mode de réalisation, l'élément de traitement comprend une unité d'émission de lumière configurée pour émettre de la lumière sur les particules en suspension reçues par la face de purification, dans lequel la lumière émise est dans le spectre des ultra-violets. Au sens de la présente invention, de la lumière dans le spectre des ultraviolets signifie toute radiation électromagnétique ayant une longueur d'onde comprise entre lOnm et 400nm. According to one embodiment, the processing element comprises a light emitting unit configured to emit light on the particles in suspension received by the purification face, in which the light emitted is in the ultraviolet spectrum . Within the meaning of the present invention, light in the ultraviolet spectrum means any electromagnetic radiation having a wavelength between 100 nm and 400 nm.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
Selon un mode de réalisation, la lumière émise a un longueur d'onde comprise entre 207 et 260nm et préférablement 222nm. According to one embodiment, the light emitted has a wavelength of between 207 and 260 nm and preferably 222 nm.
Selon un mode de réalisation, la lumière émise a un longueur d'onde comprise entre 207 et 222nm et préférablement 222nm. According to one embodiment, the light emitted has a wavelength of between 207 and 222 nm and preferably 222 nm.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple, et cela sans danger pour les êtres humains. En effet, une lumière ayant une telle longueur d'onde ne pénètre pas l'épiderme. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example, and this without danger for human beings. Indeed, a light having such a wavelength does not penetrate the epidermis.
Selon un mode de réalisation, la lumière émise a une longueur d'onde de 254nm. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple encore plus efficacement. According to one embodiment, the emitted light has a wavelength of 254 nm. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example even more effectively.
Une lumière ayant une longueur d'ondes de 222nm est particulièrement adaptée pour éliminer le SARS-CoV-2 sans pour autant être néfaste à un utilisateur par exemple. A light having a wavelength of 222nm is particularly suitable for eliminating SARS-CoV-2 without being harmful to a user, for example.
Selon un mode de réalisation, l'unité de déplacement comprend un élément de génération d'ions négatifs configuré pour générer des ions négatifs de sorte à déplacer les particules en suspension sur la face de purification. According to one embodiment, the displacement unit includes a negative ion generating element configured to generate negative ions so as to displace suspended particles on the purification face.
Une telle disposition permet d'accélérer le déplacement des particules en suspension sur la face de purification. Such an arrangement makes it possible to accelerate the displacement of the particles in suspension on the purification face.
L'invention concerne également un procédé de purification d'un fluide comprenant des particules en suspension comprenant les étapes suivantes : The invention also relates to a method for purifying a fluid comprising particles in suspension comprising the following steps:
• génération d'une onde sonore, dans laquelle l'onde sonore générée est adaptée pour déplacer les particules en suspension sur une face de purification d'une unité de purification ; • generation of a sound wave, in which the sound wave generated is adapted to move particles in suspension on a purification face of a purification unit;
• traitement des particules en suspension reçues par la face de purification par un élément de traitement. • treatment of suspended particles received by the purification face by a treatment element.
Selon un mode de réalisation, l'étape de traitement comprend une étape de chauffe des particules en suspension reçues par la face de purification. According to one embodiment, the processing step comprises a step of heating the particles in suspension received by the purification face.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Selon un mode de réalisation, l'étape de traitement comprend une étape d'émission de lumière sur les particules en suspension reçues par la face de purification. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example. According to one embodiment, the processing step comprises a step of emitting light on the particles in suspension received by the purification face.
Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
Selon un mode de réalisation, le procédé comprend une étape de préfiltration des particules en suspension déplacées par l'onde sonore avant que les particules en suspension ne soient reçues par la face de purification. According to one embodiment, the method comprises a step of pre-filtering the particles in suspension displaced by the sound wave before the particles in suspension are received by the purification face.
Selon un mode de réalisation, l'étape de préfiltration est réalisée à l'aide d'un préfiltre. According to one embodiment, the prefiltration step is carried out using a prefilter.
Une telle disposition permet de filtrer les particules en suspensions les plus grosses et ainsi limiter le nombre de particules à traiter par l'élément de traitement. Such an arrangement makes it possible to filter the largest suspended particles and thus limit the number of particles to be treated by the treatment element.
Selon un mode de réalisation, le procédé comprend une étape de génération d'ions négatifs de sorte à déplacer les particules en suspension sur la face de purification. According to one embodiment, the method comprises a step of generating negative ions so as to move the particles in suspension on the purification face.
Une telle disposition permet d'accélérer le déplacement des particules en suspension sur la face de purification. Such an arrangement makes it possible to accelerate the displacement of the particles in suspension on the purification face.
Selon un mode de réalisation, l'étape de génération d'une onde sonore et l'étape de traitement des particules sont répétées. According to one embodiment, the step of generating a sound wave and the step of processing the particles are repeated.
Une telle disposition permet de déplacer plus de particules en suspension sur la face de purification tout en s'assurant que chaque particule en suspension reçue par la face de purification soit traitée par l'élément de traitement. Such an arrangement makes it possible to move more suspended particles on the purification face while ensuring that each suspended particle received by the purification face is treated by the treatment element.
Les différents aspects définis ci-dessus non incompatibles peuvent être combinés. The various non-incompatible aspects defined above can be combined.
Brève description des figures Brief description of figures
L'invention sera encore mieux comprise à l'aide de la description détaillée qui est exposée ci-dessous en regard des dessins annexés dans lesquels : The invention will be even better understood with the aid of the detailed description which is set out below with regard to the appended drawings in which:
• [Fig. 1] représente un dispositif de purification d'un fluide comprenant des particules en suspension conformément à la présente invention ; et • [Fig. 1] shows a device for purifying a fluid comprising suspended particles in accordance with the present invention; and
• [Fig. 2] représente les étapes d'un procédé de purification d'un fluide comprenant des particules en suspension conformément à la présente invention. Description en référence aux figures • [Fig. 2] shows the steps of a process for purifying a fluid comprising particles in suspension in accordance with the present invention. Description with reference to figures
La figure 1 représente un dispositif de purification d'un fluide à l'état gazeux, et plus particulièrement de l'air comprenant des particules en suspension 40 telles que des composés organiques sous la forme d'aérosols. Au sens de la présente invention, les aérosols, ou particules en suspension 40 ont un diamètre comprit entre 50nm micron et 20 micron ou plus spécifiquement entre 2.5 micron et 10 micron. FIG. 1 represents a device for purifying a fluid in the gaseous state, and more particularly air comprising particles in suspension 40 such as organic compounds in the form of aerosols. Within the meaning of the present invention, the aerosols, or particles in suspension 40 have a diameter comprised between 50 nm micron and 20 micron or more specifically between 2.5 micron and 10 micron.
Le dispositif de purification comprend une unité de purification 10 comprenant une face de purification 12 configurée pour recevoir les particules en suspension 40 et un élément de traitement 14 configuré pour traiter lesdits particules en suspension 40 reçues par la face de purification 12. Selon un mode de réalisation, le traitement pouvant être réalisé par l'élément de traitement 14 peut être de toute sorte telle que au moins un des traitements suivants : The purification device comprises a purification unit 10 comprising a purification face 12 configured to receive the particles in suspension 40 and a treatment element 14 configured to treat said particles in suspension 40 received by the purification face 12. According to a mode of realization, the processing that can be performed by the processing element 14 can be of any kind such as at least one of the following processing:
• élimination des particules par la chaleur ; • removal of particles by heat;
• élimination des particules par émission de lumière ; • elimination of particles by light emission;
• filtration des particules à l'aide d'un filtre HEPA, tel qu'un filtre médical H13 par exemple ; et • filtration of particles using a HEPA filter, such as an H13 medical filter for example; and
• élimination par traitement à l'ozone ; • elimination by treatment with ozone;
• élimination des particules et odeurs à l'aide d'un filtre actif tel qu'un filtre à charbon comprenant par exemple du formaldéhyde ou du benzène. • elimination of particles and odors using an active filter such as a carbon filter comprising, for example, formaldehyde or benzene.
A cet effet, l'élément de traitement 14 comprend une unité de chauffage 16 configurée pour chauffer les particules en suspension 40 reçues par la face de purification 12 à une température comprise entre 60 et 70°C. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Au sens de la présente invention, éliminer peut signifier signifie tuer, détruire, inactiver ou encore désactivé par exemple. Une température comprise entre 60 et 70°C permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens, et plus particulièrement le SARS- CoV-2 sans pour autant consommer une importante quantité d'énergie. To this end, the processing element 14 comprises a heating unit 16 configured to heat the particles in suspension 40 received by the purification face 12 to a temperature between 60 and 70°C. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example. Within the meaning of the present invention, eliminating can mean meaning killing, destroying, inactivating or even deactivating, for example. A temperature between 60 and 70°C makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites, and more particularly SARS-CoV-2, without consuming a large amount of energy.
L'élément de traitement comprend également une unité d'émission de lumière 18, seule ou en complément de l'unité de chauffage 16. L'unité d'émission de lumière 18 est configurée pour émettre de la lumière sur les particules en suspension 40 reçues par la face de purification 22, dans lequel la lumière émise est dans le spectre des ultra-violets. Au sens de la présente invention, de la lumière dans le spectre des ultra-violets signifie toute radiation électromagnétique ayant une longueur d'onde comprise entre lOnm et 400nm. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. Selon un mode de réalisation préférentiel, la lumière émise par l'unité d'émission de lumière 18 a un longueur d'onde comprise entre 207 et 254nm et préférablement 222nm. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple, et cela sans danger pour les êtres humains. En effet, une lumière ayant une telle longueur d'onde ne pénètre pas l'épiderme, de plus, une lumière ayant une longueur d'ondes de 222nm est particulièrement adaptée pour éliminer certains virus et bactéries et particulièrement le SARS-CoV-2. Selon un mode de réalisation, la longueur d'onde de la lumière émise préférée est de 254nm, en effet, une telle longueur d'onde permet une meilleure élimination de certains virus et bactéries et particulièrement le SARS- CoV-2. The processing element also includes a light-emitting unit 18, alone or in addition to the heating unit 16. The light-emitting unit 18 is configured to emit light on the suspended particles 40 received by the purification face 22, in which the light emitted is in the ultraviolet spectrum. Within the meaning of the present invention, light in the ultraviolet spectrum means any electromagnetic radiation having a wavelength between lOnm and 400nm. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example. According to a preferred embodiment, the light emitted by the light emitting unit 18 has a wavelength comprised between 207 and 254 nm and preferably 222 nm. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example, and this without danger to human beings. Indeed, a light having such a wavelength does not penetrate the epidermis, moreover, a light having a wavelength of 222 nm is particularly suitable for eliminating certain viruses and bacteria and particularly SARS-CoV-2. According to one embodiment, the wavelength of the preferred emitted light is 254 nm, in fact, such a wavelength allows better elimination of certain viruses and bacteria and particularly SARS-CoV-2.
Selon un mode de réalisation, la face de purification 12 comprend une unité de génération d'un champ magnétique configuré pour maintenir les particules en suspension 40 reçues par ladite face de purification 12 en contact physique ou électromagnétique avec la face de purification 12. Une telle disposition permet d'éviter que des particules en suspension 40 ne s'échappent de la face de purification. According to one embodiment, the purification face 12 comprises a unit for generating a magnetic field configured to keep the particles in suspension 40 received by said purification face 12 in physical or electromagnetic contact with the purification face 12. Such arrangement makes it possible to prevent particles in suspension 40 from escaping from the purification face.
Le dispositif de purification comprend également une unité de déplacement 30 comprenant une unité de génération d'ondes sonores 31 configurée pour générer une onde sonore 32, dans laquelle l'onde sonore 32 générée est adaptée pour déplacer les particules en suspension 40 en direction de la face de purification 12, et cela de manière à faire impacter lesdites particules en suspension 40 sur ladite face de purification 12. Une telle configuration permet de s'assurer que les particules en suspension 40 sont bien présentes sur la face de purification 12 et permet ainsi une purification améliorée. Une onde sonore 32 particulièrement adaptée pour déplacer les particules en suspension 40 et les faire impacter sur la face de purification 12 est une onde sonore 32 générée a une fréquence comprise entre 20 et 400Hz et de préférence 100Hz. En effet, de manière surprenante, nous mesurons un déplacement plus rapide des particules en suspension 40 avec une onde sonore 32 générée à une fréquence de 100Hz. Un tel dispositif permet de purifier le fluide par le traitement des particules en suspension 40 compris dans ledit fluide. Un tel dispositif permet également de purifier le fluide bien plus rapidement qu'un dispositif de purification standard dans la mesure ou l'unité de génération d'ondes sonores 30 permet de diriger activement les particules en suspension 40 vers la face de purification 12 de l'unité de purification 10. The purification device also comprises a displacement unit 30 comprising a sound wave generation unit 31 configured to generate a sound wave 32, in which the sound wave 32 generated is adapted to move the suspended particles 40 in the direction of the purification face 12, and this in such a way as to cause said particles in suspension 40 to impact on said purification face 12. Such a configuration makes it possible to ensure that the particles in suspension 40 are indeed present on the purification face 12 and thus allows improved purification. A sound wave 32 particularly suitable for moving the particles in suspension 40 and causing them to impact on the purification face 12 is a sound wave 32 generated at a frequency between 20 and 400Hz and preferably 100Hz. Indeed, surprisingly, we measure a faster displacement of suspended particles 40 with a sound wave 32 generated at a frequency of 100Hz. Such a device makes it possible to purify the fluid by treating the particles in suspension 40 included in said fluid. Such a device also makes it possible to purify the fluid much more quickly than a standard purification device insofar as the unit of generation of sound waves 30 makes it possible to actively direct the particles in suspension 40 towards the purification face 12 of the purification unit 10.
Selon un mode de réalisation, le dispositif de purification comprend un élément de génération d'ions négatifs 36 configuré pour générer des ions négatifs de sorte à déplacer les particules en suspension 40 sur la face de purification 12. Une telle disposition permet d'accélérer le déplacement des particules en suspension 40 sur la face de purification 12. According to one embodiment, the purification device comprises a negative ion generating element 36 configured to generate negative ions so as to move the particles in suspension 40 on the purification face 12. Such an arrangement makes it possible to accelerate the displacement of the particles in suspension 40 on the purification face 12.
Le dispositif de purification comprend un préfiltre 22 positionné de sorte à filtrer au moins une partie des particules en suspension 40 déplacées par l'onde sonore 32 et/ ou un sous autre moyen, tel que le flux précédemment décrit ou encore l'élément de génération d'ions négatifs 36, avant que lesdites particules en suspension 40 ne soient reçues par la face de purification 12 lors de l'émission d'une onde sonore 32 par l'unité de génération d'ondes sonores 31. Une telle disposition permet de filtrer les particules en suspensions 40 les plus grosses et ainsi limiter les particules en suspension 40 reçues par la face de purification 12 afin de limiter le nombre de particules en suspension à traiter par l'élément de traitement 14. The purification device comprises a pre-filter 22 positioned so as to filter at least a portion of the particles in suspension 40 displaced by the sound wave 32 and/or another sub-means, such as the flow previously described or else the generation element of negative ions 36, before said particles in suspension 40 are received by the purification face 12 during the emission of a sound wave 32 by the sound wave generation unit 31. Such an arrangement makes it possible to filter the largest suspended particles 40 and thus limit the suspended particles 40 received by the purification face 12 in order to limit the number of suspended particles to be treated by the treatment element 14.
Le dispositif de purification comprend une unité de génération d'un flux 34 configurée pour générer un flux dans le fluide comprenant les particules en suspension 40. Selon un mode de réalisation, l'unité de génération d'un flux 34 peut être de toute sorte telle qu'un ventilateur par exemple. Une telle configuration permet d'agiter les particules en suspension 40 et ainsi maximiser la quantité de particules en suspension 40 déplacées par l'onde sonore 32. Lorsque le dispositif de purification est utilisé dans un espace clôt 42 comprenant un fluide, une telle configuration permet également de générer des particules en suspension 40 sur la base de particules déjà présentes sur des surfaces de l'espace clôt 42 et/ou un quelconque autre élément, sur lequel serait posé des particules, présent dans l'espace clôt 42. Les particules sont ainsi déplacées et se retrouvent en suspension dans le fluide. De cette manière, le dispositif de purification est apte à purifier le fluide contenu dans l'espace clôt, mais également de purifier l'espace clôt des particules en suspension 40 qui risquent d'apparaitre, ou d'être formée, dans le futur. The purification device comprises a flow generation unit 34 configured to generate a flow in the fluid comprising the particles in suspension 40. According to one embodiment, the flow generation unit 34 can be of any kind such as a fan for example. Such a configuration makes it possible to agitate the suspended particles 40 and thus maximize the quantity of suspended particles 40 displaced by the sound wave 32. When the purification device is used in a closed space 42 comprising a fluid, such a configuration allows also to generate particles in suspension 40 on the basis of particles already present on surfaces of the enclosed space 42 and/or any other element, on which particles would be placed, present in the enclosed space 42. The particles are thus displaced and become suspended in the fluid. In this way, the purification device is capable of purifying the fluid contained in the closed space, but also of purifying the closed space of particles in suspension 40 which risk appearing, or being formed, in the future.
L'unité de génération d'ondes sonores 31 est configurée pour générer une onde sonore 32 traversant le flux, dans laquelle l'onde sonore 31 générée est adaptée pour déplacer les particules en suspension 40, présentes dans le flux, sur la face de purification 12. Une telle disposition permet de purifier le fluide plus rapidement tout en limitant la consommation en énergie de l'unité de génération d'ondes sonores 31. En effet, une onde sonore 32 traversant le flux permet de déplacer une plus grande quantité de particules en suspension 40. The sound wave generation unit 31 is configured to generate a sound wave 32 passing through the flow, in which the sound wave 31 generated is adapted to move the suspended particles 40, present in the flow, on the purification face. 12. Such an arrangement makes it possible to purify the fluid more quickly while limiting the energy consumption of the generation unit of sound waves 31. Indeed, a sound wave 32 crossing the flow makes it possible to move a greater quantity of particles in suspension 40.
Selon un mode de réalisation non représenté, le dispositif de purification comprend une enceinte de réception comprenant l'unité de purification 10 telle que précédemment décrite ainsi que l'unité de déplacement telle que précédemment décrite. L'enceinte de réception comprend un premier orifice traversant de part en part une face de l'enceinte et un deuxième orifice traversant également de part en part une face de l'enceinte tel que le fluide comprenant les particules en suspension 40 est apte à s'écouler à travers le premier orifice ainsi qu'à travers le deuxième orifice. Une telle disposition permet d'obtenir un dispositif de purification transportable. According to an embodiment not shown, the purification device comprises a receiving enclosure comprising the purification unit 10 as previously described as well as the displacement unit as previously described. The receiving enclosure comprises a first orifice crossing right through a face of the enclosure and a second orifice also crossing right through a face of the enclosure such that the fluid comprising the particles in suspension 40 is able to s flow through the first orifice as well as through the second orifice. Such an arrangement makes it possible to obtain a transportable purification device.
Selon un mode de réalisation, l'unité de génération d'un flux 34 est configurée pour générer un flux dans le fluide comprenant les particules en suspension de telle sorte à ce que le flux s'écoule du premier orifice au deuxième orifice. Une telle disposition permet à l'unité de déplacement 30 de déplacer les particules en suspension 40, présentes dans le flux s'écoulant du premier orifice au deuxième orifice, en direction de la face de purification 12 et permet ainsi à l'élément de traitement 14 de traiter lesdites particules en suspension 40 traversant l'enceinte. According to one embodiment, the flow generating unit 34 is configured to generate a flow in the fluid comprising the particles in suspension such that the flow flows from the first orifice to the second orifice. Such an arrangement allows the movement unit 30 to move the particles in suspension 40, present in the flow flowing from the first orifice to the second orifice, in the direction of the purification face 12 and thus allows the treatment element 14 to treat said suspended particles 40 passing through the enclosure.
Selon un mode de réalisation, l'unité de génération d'un flux 34 est disposée au niveau du deuxième orifice. Une telle disposition permet d'éviter que des particules en suspension 40 soient reçues sur l'unité de génération d'un flux 34. En effet, l'unité de déplacement 30 est configurée pour déplacer les particules en suspension 40 présentes dans le flux s'écoulant du premier orifice au deuxième orifice et donc avant le deuxième orifice. Une telle disposition permet d'éviter la contamination de l'unité d'émission d'un flux 34. According to one embodiment, the flow generation unit 34 is placed at the level of the second orifice. Such an arrangement makes it possible to prevent suspended particles 40 from being received on the flow generation unit 34. Indeed, the displacement unit 30 is configured to move the suspended particles 40 present in the flow s flowing from the first orifice to the second orifice and therefore before the second orifice. Such an arrangement makes it possible to avoid the contamination of the emission unit of a flow 34.
Tel que représentée à la figure 2, l'invention concerne également un procédé de purification d'un fluide comprenant des particules en suspension 40. Un tel procédé est mis en œuvre pas un quelconque dispositif tel que le dispositif de purification décrit ci-dessus. As represented in FIG. 2, the invention also relates to a method for purifying a fluid comprising particles in suspension 40. Such a method is implemented by any device such as the purification device described above.
Le procédé de purification comprend une étape de génération d'une onde sonore 52, dans laquelle l'onde sonore 32 générée est adaptée pour déplacer les particules en suspension 40 sur une face de purification 12 d'une unité de purification 10. The purification method includes a step of generating a sound wave 52, in which the sound wave 32 generated is adapted to move the particles in suspension 40 on a purification face 12 of a purification unit 10.
Le procédé de purification comprend également une étape de traitement 54 des particules en suspension reçues par la face de purification 12 par un élément de traitement 14. L'étape de traitement 54 comprend une étape de chauffe 58 des particules en suspension 40 reçues par la face de purification 12. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. The purification method also includes a step 54 of processing the particles in suspension received by the purification face 12 by a processing element 14. The processing step 54 includes a step of heater 58 of the particles in suspension 40 received by the purification face 12. Such an arrangement makes it possible to eliminate certain organic compounds such as viruses, bacteria or mites for example.
L'étape de traitement comprend également une étape d'émission de lumière 60 sur les particules en suspension 40 reçues par la face de purification 12 en remplacement ou en complément de l'étape de chauffe 58. Une telle disposition permet d'éliminer certains composés organiques tels que des virus, bactéries ou acariens par exemple. The treatment step also includes a step 60 for emitting light on the particles in suspension 40 received by the purification face 12 replacing or in addition to the heating step 58. Such an arrangement makes it possible to eliminate certain compounds organisms such as viruses, bacteria or mites for example.
Selon un mode de réalisation, le procédé comprend une étape de préfiltration 56 des particules en suspension 40 déplacées par l'onde sonore 32 avant que les particules en suspension 40 ne soient reçues par la face de purification 12. Cette étape de préfiltration est 56 est réalisée à l'aide d'un préfiltre 22. Une telle disposition permet de filtrer les particules en suspensions 40 les plus grosses et ainsi limiter le nombre de particules à traiter par l'élément de traitement. According to one embodiment, the method comprises a prefiltration step 56 of the particles in suspension 40 displaced by the sound wave 32 before the particles in suspension 40 are received by the purification face 12. This prefiltration step is 56 is carried out using a prefilter 22. Such an arrangement makes it possible to filter the largest suspended particles 40 and thus limit the number of particles to be treated by the treatment element.
Selon un mode de réalisation, le procédé comprend une étape de génération d'ions négatifs 62 de sorte à déplacer les particules en suspension 40 sur la face de purification 12. Une telle disposition permet d'accélérer le déplacement des particules en suspension 40 sur la face de purification. According to one embodiment, the method comprises a step of generating negative ions 62 so as to move the particles in suspension 40 on the purification face 12. Such an arrangement makes it possible to accelerate the movement of the particles in suspension 40 on the face of purification.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation représentés et décrits ci-avant, mais en couvre au contraire toutes les variantes. Of course, the invention is not limited to the embodiments shown and described above, but on the contrary covers all variants thereof.

Claims

REVENDICATIONS
1. Dispositif de purification d'un fluide comprenant des particules en suspension (40), ledit dispositif comprenant : 1. Device for purifying a fluid comprising particles in suspension (40), said device comprising:
• une unité de purification (10) comprenant une face de purification (12) configurée pour recevoir les particules en suspension (40) et un élément de traitement (14) configuré pour traiter lesdites particules en suspension (40) reçues par la face de purification (12); • a purification unit (10) comprising a purification face (12) configured to receive the particles in suspension (40) and a treatment element (14) configured to treat said particles in suspension (40) received by the purification face (12);
• une unité de déplacement (30) comprenant une unité de génération d'ondes sonores (31) configurée pour générer une onde sonore (32) ayant une fréquence comprise entre 20 et 400Hz, dans laquelle l'onde sonore (32) générée est adaptée pour déplacer les particules en suspension (40) en direction de la face de purification (12). • a moving unit (30) comprising a sound wave generating unit (31) configured to generate a sound wave (32) having a frequency of 20 to 400Hz, wherein the generated sound wave (32) is adapted to move the suspended particles (40) towards the purification face (12).
2. Dispositif de purification selon la revendication 1, dans lequel l'onde sonore (32) générée est adaptée pour déplacer les particules en suspension (40) sur la face de purification (12) de manière à faire impacter lesdites particules en suspension (40) sur ladite face de purification (12). 2. Purification device according to claim 1, in which the sound wave (32) generated is adapted to move the particles in suspension (40) on the purification face (12) so as to impact said particles in suspension (40 ) on said purification face (12).
3. Dispositif de purification selon l'une quelconque des revendications 1 ou 2, dans lequel l'unité de déplacement (30) comprend une unité de génération d'un flux (34) configurée pour générer un flux dans le fluide comprenant les particules en suspension (40). 3. Purification device according to any one of claims 1 or 2, wherein the displacement unit (30) comprises a flow generation unit (34) configured to generate a flow in the fluid comprising the particles in suspension (40).
4. Dispositif de purification selon la revendication 3, dans lequel l'unité de génération d'ondes sonores (31) est configurée pour générer une onde sonore (32) traversant le flux, dans laquelle l'onde sonore (31) générée est adaptée pour déplacer les particules en suspension (40), présentes dans le flux, sur la face de purification (12). A purification device according to claim 3, wherein the sound wave generation unit (31) is configured to generate a sound wave (32) passing through the flow, wherein the generated sound wave (31) is adapted to move suspended particles (40), present in the flow, onto the purification face (12).
5. Dispositif de purification selon l'une quelconque des revendications 1 à 4, dans lequel l'élément de traitement (14) comprend une unité de chauffage (16) configurée pour chauffer les particules en suspension (40) reçues par la face de purification (12). 5. A purification device according to any one of claims 1 to 4, wherein the treatment element (14) comprises a heating unit (16) configured to heat the suspended particles (40) received by the purification face. (12).
6. Dispositif de purification selon la revendication 5, dans lequel l'unité de chauffage (16) est configurée pour chauffer les particules en suspension (40) reçues par la face de purification (12) à une température comprise entre 60 et 70°C. 6. Purification device according to claim 5, in which the heating unit (16) is configured to heat the particles in suspension (40) received by the purification face (12) to a temperature comprised between 60 and 70°C. .
7. Dispositif de purification selon l'une quelconque des revendications 1 à7. Purification device according to any one of claims 1 to
6, dans lequel le dispositif de purification comprend un préfiltre (22) positionné de sorte à filtrer au moins une partie des particules en suspension (40) déplacées par l'onde sonore (32) avant que lesdites particules en suspension (40) ne soient reçues par la face de purification (12) lors de l'émission d'une onde sonore (32) par l'unité de génération d'ondes sonores (31). 6, wherein the purification device comprises a pre-filter (22) positioned to filter at least a portion of the suspended particles (40) displaced by the sound wave (32) before said suspended particles (40) are received by the purification face (12) when emitting a sound wave (32) from the sound wave generating unit (31).
8. Dispositif de purification selon l'une quelconque des revendication 1 à8. Purification device according to any one of claims 1 to
7 , dans lequel l'élément de traitement comprend une unité d'émission de lumière (18) configurée pour émettre de la lumière sur les particules en suspension (40) reçues par la face de purification (22), dans lequel la lumière émise est dans le spectre des ultraviolets. 7, wherein the processing element comprises a light emitting unit (18) configured to emit light onto the suspended particles (40) received by the purification face (22), wherein the emitted light is in the ultraviolet spectrum.
9. Dispositif de purification selon la revendication 8, dans lequel la lumière émise a un longueur d'onde comprise entre 207 et 222nm et préférablement 222nm. 9. Purification device according to claim 8, in which the light emitted has a wavelength of between 207 and 222 nm and preferably 222 nm.
10. Dispositif de purification selon l'une quelconque des revendications 1 à 9, dans lequel l'unité de déplacement (30) comprend un élément de génération d'ions négatifs (36) configuré pour générer des ions négatifs de sorte à déplacer les particules en suspension (40) sur la face de purification (12). 10. A purification device according to any one of claims 1 to 9, wherein the displacement unit (30) comprises a negative ion generating element (36) configured to generate negative ions so as to displace the particles. in suspension (40) on the purification face (12).
11. Procédé de purification d'un fluide comprenant des particules en suspension (40) comprenant les étapes suivantes : 11. A method for purifying a fluid comprising suspended particles (40) comprising the following steps:
• génération d'une onde sonore (52) ayant une fréquence comprise entre 20 et 400Hz, dans laquelle l'onde sonore (32) générée est adaptée pour déplacer les particules en suspension (40) sur une face de purification (12) d'une unité de purification (10) ; • generation of a sound wave (52) having a frequency between 20 and 400Hz, in which the sound wave (32) generated is adapted to move the particles in suspension (40) on a purification face (12) of a purification unit (10);
• traitement (54) des particules en suspension reçues par la face de purification (12) par un élément de traitement (14). 14 • treatment (54) of the particles in suspension received by the purification face (12) by a treatment element (14). 14
12. Procédé de purification selon la revendication 11, dans lequel l'étape de traitement (54) comprend une étape de chauffe (58) des particules en suspension (40) reçues par la face de purification (12). 12. Purification process according to claim 11, in which the treatment step (54) comprises a step of heating (58) the particles in suspension (40) received by the purification face (12).
13. Procédé de purification selon l'une quelconque des revendications 11 et 12, dans lequel l'étape de traitement (54) comprend une étape d'émission de lumière (60) sur les particules en suspension (40) reçues par la face de purification (12). 13. Purification method according to any one of claims 11 and 12, in which the treatment step (54) comprises a step of emitting light (60) on the particles in suspension (40) received by the face of cleansing (12).
14. Procédé selon l'une quelconque des revendications 11 à 13, dans lequel le procédé comprend une étape de préfiltration (56) des particules en suspension (40) déplacées par l'onde sonore (32) avant que les particules en suspension (40) ne soient reçues par la face de purification (12). 14. Method according to any one of claims 11 to 13, in which the method comprises a step of prefiltering (56) the particles in suspension (40) displaced by the sound wave (32) before the particles in suspension (40 ) are received by the purification face (12).
15. Procédé selon l'une quelconque des revendications 11 à 14, dans lequel le procédé comprend une étape de génération d'ions négatifs (62) de sorte à déplacer les particules en suspension (40) sur la face de purification (12). 15. Method according to any one of claims 11 to 14, in which the method comprises a step of generating negative ions (62) so as to move the particles in suspension (40) on the purification face (12).
EP21810408.1A 2020-10-29 2021-10-25 Device for purifying a fluid comprising suspended particles Withdrawn EP4237016A1 (en)

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FR2011108A FR3115708A1 (en) 2020-10-29 2020-10-29 Device for purifying a fluid comprising particles in suspension
PCT/FR2021/051868 WO2022090658A1 (en) 2020-10-29 2021-10-25 Device for purifying a fluid comprising suspended particles

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KR950000197A (en) 1993-06-02 1995-01-03 히데오 요시카와 Polluted air purifier
US5558158A (en) * 1994-05-19 1996-09-24 Elmore; Robert L. Hygienic air handler
CA2187700A1 (en) * 1996-10-11 1998-04-11 Pierre Charbonneau Sterilization system
WO2004035100A2 (en) * 2002-10-21 2004-04-29 Uvgi Systems Limited Cleaning of air
WO2005007207A1 (en) * 2003-06-17 2005-01-27 Georges Gau Method and apparatus for the sterilisation of air that is intended to ventilate spaces requiring air with a low micro-organism content
FR2886157B1 (en) * 2005-05-26 2007-12-07 Henri Drean BACTERIAL PURIFIER
US20070053188A1 (en) * 2005-09-06 2007-03-08 Luminator Holding, L.P. LED ultraviolet air sanitizer light fixture
JP5532286B2 (en) * 2008-12-16 2014-06-25 徹 古谷 Fluid processing equipment

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