WO2022074090A1 - Purificateur d'air ambiant comprenant un filtre à plasma - Google Patents

Purificateur d'air ambiant comprenant un filtre à plasma Download PDF

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Publication number
WO2022074090A1
WO2022074090A1 PCT/EP2021/077635 EP2021077635W WO2022074090A1 WO 2022074090 A1 WO2022074090 A1 WO 2022074090A1 EP 2021077635 W EP2021077635 W EP 2021077635W WO 2022074090 A1 WO2022074090 A1 WO 2022074090A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
room air
cleaning device
air
plasma
Prior art date
Application number
PCT/EP2021/077635
Other languages
German (de)
English (en)
Inventor
Franziska FISCHES
Original Assignee
MAVENET GmbH
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 MAVENET GmbH filed Critical MAVENET GmbH
Publication of WO2022074090A1 publication Critical patent/WO2022074090A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
    • 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
    • A61L9/22—Ionisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • F24F8/192—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 electrical means, e.g. by applying electrostatic fields or high voltages
    • F24F8/194—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 electrical means, e.g. by applying electrostatic fields or high voltages by filtering using high voltage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • 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
    • F24F8/96—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 pollen
    • 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

  • the present invention relates to a room air purification device with a plasma filter.
  • the invention relates to a room air cleaning device comprising a particle filter, a plasma filter, a carbon filter and a particulate filter.
  • DE 102018119718 A1 describes a filter with a particle filter, a plasma filter, a particulate filter and a charcoal filter, which are arranged in precisely this order. It was recognized as disadvantageous that the maintenance effort for the individual filter stages was individually different and therefore individual filter stages often had to be serviced. In addition, the HEPA filter stage often required maintenance much earlier than other stages.
  • the object of the invention was to provide a room air cleaning device with a plasma filter that was easier to maintain and can clean the air more reliably, especially with regard to the ozone content, than in the prior art.
  • a room air cleaning device for cleaning air passed through the cleaning device in a feed-through direction, comprising a particle filter, a plasma filter, a carbon filter and a particulate filter, with the particulate filter being arranged behind the carbon filter in the feed-through direction and the carbon filter behind the plasma filter in the feed-through direction is arranged and the plasma filter is arranged in the passage direction behind the particle filter.
  • the particulate filter essentially functions as an air inlet filter for coarse dust.
  • the particle filter removes large particles from the sucked-in room air, in particular fluff from carpets and also human and animal hair.
  • the particle filter can be equipped with lighting to attract insects in the dark.
  • the air inlet filter for coarse dust extends the service life as a protective filter time of the HEPA filter arranged behind it.
  • a stage G4 particle filter is preferably used.
  • the plasma filter is preferably a metallic comb or sawtooth ionizer. Ions are generated through the plasma filter using high voltage. Plasma filters or ionizers are devices for the partial ionization of air. The resulting radicals promote chemical degradation processes, which is used to eliminate odors and disinfect. Ionizers work with high voltage, usually several thousand volts and an electrical discharge at peaks or they contain sources of ionizing radiation (ultraviolet emitters, radioactive isotopes). The achievable currents are usually around 1 pA, which corresponds to several billion ions per second. A plasma field and ozone are preferably generated by means of a dielectric barrier discharge with a high energy input of approx. 1,500 volts and a low current of approx.
  • the charcoal filter preferably comprises activated charcoal.
  • the carbon filter filters out undissolved mechanical particles.
  • the carbon acts as a reducing agent and can absorb oxidizing agents such as ozone and chlorine from the exhaust air. During filtering and adsorption, the substances to be removed are absorbed by the activated carbon and preferably enriched in the carbon mass. In contrast, when reducing ozone, for example, some of the carbon is oxidized to form carbon dioxide and is therefore consumed. The amount of activated carbon is reduced and must be refilled occasionally.
  • the carbon filter is mainly responsible for the fresh, neutral smell that comes out of the device. Ozone 03 is reduced into O2 and other gases are absorbed. The combination of plasma filter and carbon filter results in optimal odor neutralization, including incontinence odors.
  • Filter mats are preferably used that are mounted in metal frames to enable easy replacement.
  • the filter medium preferably consists of a thermoplastic material such as PTFE (polytetrafluoroethylene) or glass fiber mats with a fiber diameter of about 1 to 10 ⁇ m.
  • PTFE polytetrafluoroethylene
  • the mats are preferably built into the frame in a wavy or jagged shape. When changing the filters, this prevents the pollutants that have been separated out from being released and inhaled or touched. For this reason, preference is given to using filter housings that allow contactless filter changes (protective bag change method).
  • the special advantage of the terminal HEPA filter is that the activated carbon absorbs dissolved particles and thus extends the service life of the HEPA filter.
  • the risk of the active carbon being metabolized by the terminal HEPA filter is eliminated even in humid room air, since this protects the filter from humidity and the associated risk of bacteria and fungi growing through.
  • the terminal HEPA filter represents another barrier to particles being blown out into the room air.
  • the particle filter additionally has an activated carbon filter stage.
  • the particle filter is a combination filter made up of particle filter and carbon filter. These combination filter cells are used for filtration in extraction processes in which particulate and gaseous air pollution must be reliably separated. Due to the preferably compact combination of fine dust and suspended matter fi Item (HEPA) with activated carbon filter stages on the one hand and the particle filter and the additional activated carbon filter stage on the other hand, even complex filtration problems can be solved in the smallest of spaces.
  • HEPA fine dust and suspended matter fi Item
  • the pre-filter designed as a combination filter ensures that ozone in the room can be sucked in and removed from the air.
  • the combination filter as a pre-filter represents a further safety level for use in the medical field, since no ozone can flow out of the device even if the blower malfunctions.
  • the room air cleaning device is connected to a fan.
  • the air can be guided through the room air cleaning device by the blower.
  • the room air cleaning device with the blower can therefore be used as a stand-alone solution and does not have to be connected to an air duct and integrated there.
  • the cleaning performance can preferably be regulated by controlling the blower depending on the load on the cleaned room air. For example, when used in a closed room, it is possible to achieve an optimum depending on the rate of air purification quality (air purity at time 2/air purity at time 1) and the total time required to achieve a target air purity by controlling the blower.
  • the blower of the room air purification device can preferably be manually regulated over five stages, but can also be controlled automatically via sensors and regulate itself.
  • the room air cleaning device can be optimally adapted to the requirements of the room air to be cleaned due to the different blower stages, which correspond to different flow rates.
  • the room air cleaning device is preferably equipped with a sensor system that is set up to detect relevant gases, particles, aerosols and/or suspended particles.
  • the room air cleaning device is preferably also equipped with a control/regulating device which is set up to use the measured values detected to control the room air cleaning device. the.
  • the room air cleaning device can always optimally adapt to the conditions of the room or its room air and, for example, initiate special measures.
  • the room air cleaning device comprises a housing, the housing being designed with an air inlet and an air outlet, with the air flowing through the air inlet having a direction of passage through the particle filter (or the combined filter: particle and activated carbon filter) in the plasma filter, into the carbon filter, into the HEPA filter and then into the air outlet.
  • the particle filter or the combined filter: particle and activated carbon filter
  • the air inlet and the air outlet in a housing allow the filter arrangement to be encapsulated between the air inlet and air outlet, thereby preventing air from flowing past the air inlet and the air outlet within the housing.
  • the room air cleaning device is particularly preferably sealed in such a way that over 99.5% of the air flowing through flows through the terminal particulate filter.
  • the sealing in particular of the terminal HEPA filter relative to the air outlet, a high level of cleaning efficiency can be achieved, which would not be the case with a terminal activated carbon filter alone.
  • the sealing also) takes place via a tight fit test groove seal.
  • the HEPA filter preferably includes a HEPA stage, particularly preferably a ULPA stage.
  • a combination of a HEPA stage with a ULPA stage can also be provided.
  • An H14 stage is preferably used as the HEPA stage.
  • the cleaning performance is increased by these terminal HEPA filters in such a way that the room air cleaning device can be used in hospitals and in germ-free areas.
  • maintenance can also be carried out by protected replacement of the terminal HEPA filter without subsequent contamination and can therefore even be carried out on site.
  • FIG. 1 shows a schematic view of a room air cleaning device according to the invention
  • the room air cleaning device 10 has a particle filter 1 , a plasma filter 2 , a carbon filter 3 and a particulate filter 4 .
  • the particle filter 1 is preferably a combination filter made up of a particle filter 1 with an additional activated carbon stage 1.1 (not shown).
  • These filters 1 to 4 are arranged in a housing 8 between an air inlet 5 and an air outlet 6 .
  • the HEPA filter 4 is specially sealed off from the air outlet 6 so that no air that was not previously in the HEPA filter 6 can get into the air outlet 6 .
  • a position for a fan 7 is provided between the particle filter 1 and the plasma filter 2 .
  • An alternative position for a fan is provided between the plasma filter 2 and the carbon filter 3. Fans can also be used in both positions at the same time.
  • Air is now guided through the air inlet 5 into the housing 8 through the particle filter 1 by the negative pressure that the blower 7 generates at the air inlet 5 .
  • the air is cleaned of coarser dust particles and macroscopic objects such as hair, scales, etc.
  • the pre-cleaned air then enters the plasma filter, where a plasma-chemical decomposition process takes place through ionization: gases are oxidized, odors are dissolved, germs, colony-forming units (CFU), viruses, pollen, spores and bacteria of all kinds are inactivated.
  • the air cleaned in this way contains ozone and is passed through the activated carbon filter. There the ozone is reduced back to oxygen and no ozone can get into the room air.
  • a particularly tight seal of the particulate filter 4 relative to the air outlet 6 ensures that only air that has previously passed through the particulate filter can escape. This further increases the quality of the air purification.

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

Abstract

La présente invention concerne un purificateur d'air ambiant pour purifier l'air ambiant qui traverse le purificateur dans une direction d'écoulement, ledit purificateur d'air ambiant comprenant un filtre à particules, un filtre à plasma, un filtre à charbon et un filtre à air à particules à haute efficacité, le filtre à air à particules à haute efficacité étant situé en aval du filtre à charbon dans la direction d'écoulement, le filtre à charbon étant situé en aval du filtre à plasma dans la direction d'écoulement et le filtre à plasma étant situé en aval du filtre à particules dans la direction d'écoulement.
PCT/EP2021/077635 2020-10-09 2021-10-07 Purificateur d'air ambiant comprenant un filtre à plasma WO2022074090A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020126472.0 2020-10-09
DE102020126472.0A DE102020126472A1 (de) 2020-10-09 2020-10-09 Raumluftreinigungseinrichtung mit Plasmafilter

Publications (1)

Publication Number Publication Date
WO2022074090A1 true WO2022074090A1 (fr) 2022-04-14

Family

ID=78179367

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/077635 WO2022074090A1 (fr) 2020-10-09 2021-10-07 Purificateur d'air ambiant comprenant un filtre à plasma

Country Status (2)

Country Link
DE (1) DE102020126472A1 (fr)
WO (1) WO2022074090A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022213109A1 (de) 2022-12-06 2024-06-06 Robert Bosch Gesellschaft mit beschränkter Haftung Raumluftfiltersystem

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1433515A2 (fr) * 2002-12-23 2004-06-30 Samsung Electronics Co., Ltd. Purificateur d'air
DE102013000158A1 (de) * 2013-01-09 2014-07-10 Edelstahl Nord GmbH Belüftungsvorrichtung
DE202014104576U1 (de) * 2014-09-24 2014-10-16 Edelstahl Nord GmbH Lüftungsvorrichtung zur Lüftung eines Innenraumes einer Stallung
DE102018119718A1 (de) 2017-08-14 2019-02-14 O + F A-Line Gmbh Raumluftreinigungseinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10301214B3 (de) 2003-01-15 2004-04-15 Carl Freudenberg Kg Anordnung zur Aufbereitung von Luft

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1433515A2 (fr) * 2002-12-23 2004-06-30 Samsung Electronics Co., Ltd. Purificateur d'air
DE102013000158A1 (de) * 2013-01-09 2014-07-10 Edelstahl Nord GmbH Belüftungsvorrichtung
DE202014104576U1 (de) * 2014-09-24 2014-10-16 Edelstahl Nord GmbH Lüftungsvorrichtung zur Lüftung eines Innenraumes einer Stallung
DE102018119718A1 (de) 2017-08-14 2019-02-14 O + F A-Line Gmbh Raumluftreinigungseinrichtung

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Publication number Publication date
DE102020126472A1 (de) 2022-04-14

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