WO2022176711A1 - Purificateur d'air - Google Patents

Purificateur d'air Download PDF

Info

Publication number
WO2022176711A1
WO2022176711A1 PCT/JP2022/004924 JP2022004924W WO2022176711A1 WO 2022176711 A1 WO2022176711 A1 WO 2022176711A1 JP 2022004924 W JP2022004924 W JP 2022004924W WO 2022176711 A1 WO2022176711 A1 WO 2022176711A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
discharge
charging device
outlet
internal space
Prior art date
Application number
PCT/JP2022/004924
Other languages
English (en)
Japanese (ja)
Inventor
啓輔 山城
規 浅田
伸 松本
延章 大栗
章朝 瑞慶覧
裕俊 杉山
翔 寺沢
Original Assignee
富士電機株式会社
学校法人幾徳学園
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 富士電機株式会社, 学校法人幾徳学園 filed Critical 富士電機株式会社
Publication of WO2022176711A1 publication Critical patent/WO2022176711A1/fr

Links

Images

Classifications

    • 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
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • 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
    • F24F8/80—Self-contained air purifiers
    • 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 disclosure relates to air purifiers.
  • Patent Document 1 an electric dust collection type air cleaner that charges dust particles contained in the air and collects the charged dust particles by electrostatic adsorption is known (see Patent Document 1, for example).
  • the electrostatic precipitator function alone can collect fine particles (viruses or bacteria. Microscopic substances such as dust containing viruses or bacteria can also be collected), the collected viruses or bacteria cannot be inactivated.
  • the present disclosure provides an air purifier capable of inactivating captured viruses or bacteria.
  • This disclosure is an internal space interposed between the inlet and the outlet; a charging device that charges fine particles contained in the air flowing from the suction port into the internal space; a humidifying device for humidifying the air; a collection device that collects charged fine particles from the air by electrostatic force; and a discharging device for discharging the air from the collecting device to the outlet.
  • an air cleaner capable of inactivating the collected viruses or bacteria.
  • FIG. 1 is a schematic diagram showing a first configuration example of a charging device in an air cleaner of one embodiment
  • FIG. FIG. 4 is a schematic diagram showing a second configuration example of the charging device in the air cleaner of one embodiment
  • It is a schematic diagram which shows the structural example of the collection apparatus in the air cleaner of one Embodiment.
  • It is a schematic diagram which shows the 1st structural example of the air cleaner of one Embodiment.
  • FIG. 10 is a diagram showing an example of verification results of the survival rate of Staphylococcus aureus before humidification at each position in the internal space.
  • FIG. 10 is a diagram showing an example of verification results of the survival rate of Staphylococcus aureus before humidification at each position in the internal space.
  • FIG. 10 is a diagram showing an example of verification results of the survival rate of Staphylococcus aureus after humidification at each position in the internal space.
  • FIG. 10 is a diagram showing an example of the results of verification of virus viability before humidification at each position in the internal space.
  • FIG. 10 is a diagram showing an example of the verification result of virus viability after humidification at each position in the internal space.
  • FIG. 5 is a diagram showing an example of the relationship between the applied voltage and the discharge current depending on the difference in the polarity of the discharge electrodes in the charging device;
  • FIG. 5 is a diagram showing an example of the relationship between discharge current and ozone concentration depending on the difference in polarity of discharge electrodes in a charging device;
  • FIG. 1 is a diagram showing an example of an air purifier according to one embodiment.
  • An air purifier 100 shown in FIG. 1 is a device for purifying air.
  • the air purifier 100 includes a housing 10 that houses devices for purifying air.
  • the housing 10 has an intake port 11 for sucking air from the outside of the air cleaner 100 and an outlet port 12 for blowing out the air cleaned by devices inside the housing 10 to the outside of the air cleaner 100 .
  • the suction port 11 is provided at one end (eg, lower portion) of the housing 10, and the outlet 12 is provided at the other end (eg, upper portion) of the housing 10. .
  • the respective positions of the suction port 11 and the blowing port 12 are not limited to this, and may be other locations.
  • the installation number of each of the suction port 11 and the blowing port 12 may be one or more.
  • the air cleaner 100 includes an internal space 20, a charging device 30, a humidifying device 40, a collecting device 50, a discharging device 60 and a control device 80.
  • the positional relationship of each device shown in FIG. 1 is merely an example, and is not limited to this as long as the desired effect of inactivating viruses or bacteria is achieved.
  • the internal space 20 is a space that exists inside the housing 10 and is interposed between the inlet 11 and the outlet 12 .
  • the internal space 20 is a flow path that connects the suction port 11 to the blowout port 12, and the air flowing in from the suction port 11 flows.
  • the charging device 30 is a device that charges fine particles contained in the air flowing from the suction port 11 into the internal space 20 (hereinafter also referred to as "air A").
  • Microparticles are viruses or bacteria, but may also be minute substances such as dust containing viruses or bacteria.
  • Particulates may include microparticulate matter (PM2.5).
  • PM2.5 refers to particles with a size of 2.5 ⁇ m or less among particles floating in the air.
  • the collection device 50 collects charged fine particles from the air A flowing in the internal space 20 by electrostatic force. For example, when the collection device 50 has the ability to collect fine particles with a size of 10 nm or more and 100 ⁇ m or less, a small virus of about 30 nm, a novel coronavirus (COVID-19) of about 100 nm, or virus droplets of several ⁇ m. It can collect pathogenic bacteria.
  • the size of fine particles that can be collected by the collecting device 50 is not particularly limited.
  • the discharge device 60 discharges the air A from the collection device 50 to the outlet 12 .
  • the discharge device 60 introduces the air outside the air cleaner 100 into the internal space 20 through the suction port 11 and discharges the air A that has passed through the collection device 50 to the discharge port 12 .
  • the discharge device 60 has, for example, a fan and a motor, and discharges the air A to the outlet 12 by rotating the fan with the motor.
  • the control device 80 operates or stops the charging device 30, the humidifying device 40, the collecting device 50, and the discharging device 60 according to the contents of the operation instruction from the user.
  • the air cleaner 100 includes the humidifying device 40 that humidifies the air A flowing in the internal space 20 .
  • the humidifying device 40 that humidifies the air A flowing in the internal space 20 .
  • ozone (O 3 ) contained in air A and moisture (H 2 O) contained in air A are mixed, hydroxyl radicals (OH radicals) that inactivate viruses or bacteria are generated. Therefore, by humidifying the air A with the humidifier 40, OH radicals can be generated, so viruses or bacteria contained in the air A and viruses or bacteria collected by the collection device 50 can be inactivated.
  • the air purifier 100 of the present embodiment can efficiently generate OH radicals that inactivate viruses or bacteria by humidifying the air A with the humidifier 40 even with a relatively small amount of ozone. Therefore, the air cleaner 100 can inactivate viruses or bacteria contained in the air A and viruses or bacteria collected by the collecting device 50 .
  • the charging device 30 may charge fine particles contained in the air A by corona discharge. Moisture contained in the air A humidified by the humidifier 40 readily reacts with ozone generated in the air A by corona discharge. Therefore, the air cleaner 100 can efficiently generate OH radicals that inactivate viruses or bacteria. As a result, the effect of inactivating the viruses or bacteria contained in the air A and the viruses or bacteria collected by the collecting device 50 is enhanced.
  • the ozone contained in the air A (which may include ozone generated by corona discharge) reacts with the moisture contained in the air A humidified by the humidifier 40 and is easily decomposed. As a result, the concentration of ozone contained in the air A is reduced, so that the discharge device 60 can discharge air having an ozone concentration of 0.1 ppm or less from the outlet 12 .
  • the humidifier 40 humidifies the air A to a humidity of 67% or higher, the moisture contained in the humidified air A reacts with the ozone contained in the air A (which may include ozone generated by corona discharge). promotes. This increases the efficiency of generating OH radicals and further improves the effect of inactivating viruses or bacteria.
  • the humidifier 40 preferably humidifies the air A to a humidity of 70% or more, more preferably 75% or more, in terms of increasing the efficiency of generating OH radicals (increasing the effect of inactivating viruses or bacteria). It is preferable, and it is more preferable to humidify to 80% or more.
  • the position of the humidifying device 40 is not particularly limited as long as it satisfies the desired humidifying function.
  • the humidifying device 40 humidifies the gas A between the suction port 11 and the charging device 30 .
  • the air A humidified by the humidifying device 40 is easily supplied to the charging device 30, so that the reaction between the moisture contained in the air A and ozone (which may include ozone generated by corona discharge) is further enhanced.
  • the efficiency of generating OH radicals is increased, and the effect of inactivating viruses or bacteria is further improved.
  • the humidifying device 40 may humidify the air A passing through the charging device 30 . This further promotes the reaction between the moisture contained in the air A and ozone (which may include ozone generated by corona discharge). As a result, the efficiency of generating OH radicals is increased, and the effect of inactivating viruses is further improved.
  • the arrangement position of the collection device 50 is not particularly limited as long as it satisfies the desired collection function.
  • the collecting device 50 collects charged fine particles from the air A by electrostatic force between the charging device 30 and the outlet 12 .
  • the particles charged in the charging device 30 are more likely to be supplied to the collecting device 50, so that the capability of collecting the charged particles is improved.
  • the discharging device 60 is interposed between the charging device 30 and the outlet 12, the collecting device 50 collects the charged fine particles from the air A by electrostatic force between the charging device 30 and the discharging device 60. is preferred. This improves the ability to collect charged fine particles.
  • the placement position of the ejection device 60 is not particularly limited as long as it satisfies the desired ejection function.
  • the discharge device 60 is arranged between the collection device 50 and the outlet 12 . Since the fine particles contained in the air A are collected by the collecting device 50, the discharging device 60 is disposed between the collecting device 50 and the blowout port 12, so that the discharging device 60 can collect the dirty air A. less likely to be polluted. As a result, for example, safety in maintenance such as replacement and cleaning of the discharging device 60 is improved.
  • the air purifier 100 may include a filter 90 for filtering ozone between the collecting device 50 and the outlet 12 .
  • a filter 90 for filtering ozone between the collecting device 50 and the outlet 12 .
  • the filter 90 is preferably interposed between the discharge device 60 and the outlet 12 .
  • the effect of reducing the concentration of ozone contained in the air blown from the outlet 12 is enhanced.
  • manganese oxide as the catalyst of the filter 90, the effect of reducing the ozone concentration is improved.
  • FIG. 2 is a schematic diagram showing a first configuration example of the charging device in the air cleaner of one embodiment.
  • a charging device 30A shown in FIG. 2 is an example of the charging device 30 described above.
  • the charging device 30A has a discharge section 31 that generates corona discharge.
  • the discharge part 31 has a discharge wire 32 arranged in the internal space 20 and ground electrodes 33 and 34 facing the discharge wire 32 .
  • the discharge wire 32 is an example of a discharge electrode.
  • the ground electrode 34 is grounded at the same potential as the ground electrode 33 .
  • the charging device 30A applies a high voltage HV1 between the discharge wire 32 and the ground electrodes 33, 34 to generate corona discharge between the discharge wire 32 and the ground electrodes 33, 34.
  • FIG. 1 high voltage
  • FIG. 3 is a schematic diagram showing a second configuration example of the charging device in the air cleaner of one embodiment.
  • a charging device 30B shown in FIG. 3 is an example of the charging device 30 described above.
  • the charging device 30B has a discharge section 36 that generates corona discharge.
  • the discharge section 36 has a discharge electrode 37 arranged in the internal space 20, a ground electrode 38 facing the discharge electrode 37, and an insulator 39 for insulating between the discharge electrode 37 and a support section (inner wall, etc.).
  • the discharge electrode 37 is a disk-shaped electrode with a plurality of sharp projections extending radially.
  • the discharge section 36 has a discharge electrode group 35 in which a plurality of discharge electrodes 37 are laminated with a space therebetween.
  • a plurality of discharge electrode groups 35 are arranged in a plurality of spaces partitioned by grid-like ground electrodes 38 .
  • the charging device 30B applies a high voltage HV1 between the discharge electrode 37 (the plurality of discharge electrode groups 35) and the ground electrode 38, thereby causing the discharge electrodes 37 (the plurality of discharge electrode groups 35) and the ground electrode 38 to A corona discharge is generated between
  • the discharge electrode of the charging device 30 may have a positive polarity or a negative polarity.
  • the positive discharge electrode is an electrode to which a positive high voltage is applied with respect to the ground electrode
  • the negative discharge electrode is an electrode to which a negative high voltage is applied with respect to the ground electrode.
  • the charging device 30 applies a positive high voltage HV1 between the ground electrode and the positive discharge electrode to generate corona discharge between the two electrodes, thereby suppressing the concentration of ozone in the internal space 20 and trapping the ozone. It is possible to improve the collection rate of fine particles in the collection device 50 .
  • FIG. 4 is a schematic diagram showing a configuration example of a collecting device in an air purifier according to one embodiment.
  • a collection device 50A shown in FIG. 4 is an example of the collection device 50 described above.
  • 50 A of collection apparatuses have the electric field generation part 51 which generates an electrostatic field.
  • the electric field generator 51 has a high voltage electrode 54 arranged in the internal space 20 and collection electrodes 52 and 53 facing the high voltage electrode 54 .
  • High voltage electrode 54 is, for example, a conductive plate.
  • the collection electrode 53 is grounded at the same potential as the collection electrode 53 .
  • the collection device 50A applies a high voltage HV2 between the high voltage electrode 54 and the collection electrodes 52, 53 to generate an electrostatic field between the high voltage electrode 54 and the collection electrodes 52, 53. .
  • the charged fine particles are attracted to the collecting electrodes 52 and 53 by electrostatic force and adhere to the collecting electrodes 52 and 53 .
  • FIG. 5 is a schematic diagram showing a first structural example of the air purifier of one embodiment.
  • An air cleaner 100A shown in FIG. 5 is an example of the air cleaner 100 described above.
  • the air cleaner 100A has a structure in which the discharge section 31 of the charging device and the electric field generation section 51 of the collection device are separated.
  • the discharge line 32 and the high voltage electrode 54 are arranged in the air flow direction within the internal space 20 .
  • the discharge device 60 discharges the air A in the internal space 20 to the outlet by rotating the fan 61 with a motor.
  • FIG. 6 is a schematic diagram showing a second structural example of the air purifier of one embodiment.
  • An air cleaner 100B shown in FIG. 6 is an example of the air cleaner 100 described above.
  • the air cleaner 100B has a structure in which the discharge section 31 of the charging device and the electric field generation section 51 of the collection device are integrated.
  • the plurality of discharge lines 32 are arranged in the air flow direction within the internal space 20 .
  • the discharge device 60 discharges the air A in the internal space 20 to the outlet by rotating the fan 61 with a motor.
  • FIG. 7 is a diagram showing an example of the verification result of the survival rate of bacteria before humidification (humidity of air A: 38% to 66%) at each position B1 to B6 in the internal space 20.
  • FIG. FIG. 8 is a diagram showing an example of the verification result of the survival rate of bacteria after humidification (humidity of air A: 75% to 90%) at positions B1 to B6 in internal space 20.
  • FIG. 7 and 8 show an example of the verification result of the survival rate of bacteria arranged in the same number at positions B1 to B6 in the internal space 20 in the air purifier 100A (see FIG. 5). The survival rate on the vertical axis in FIGS.
  • FIG. 7 and 8 indicates the ratio of the survival number of bacteria arranged at each position to the survival number of bacteria arranged at the position B0 on the most upstream side in the internal space 20.
  • FIG. 7 and 8 “with electric field” indicates the case where the electric field generator 51 generates an electric field, and "without electric field” indicates the case where the electric field generator 51 does not generate the electric field.
  • the bacterium placed at each position B1 to B6 is Staphylococcus aureus NBRC13276.
  • the processing conditions at the time of verification were as follows: flow velocity (wind speed) of air A in internal space 20: 0.5 m/s; processing time: 1 hour; humidity of air A: 90%; HV1 is -8.5 kV to 9.5 kV, and the high voltage HV2 applied in the electric field generator 51 is -5 kV.
  • the results shown in FIGS. 7 and 8 are examples when the ozone concentration in the internal space 20 is 1 ppm. and the same results as those with an electric field were obtained.
  • the above results were about the inactivation effect on Staphylococcus aureus, but the inactivation effect of corona discharge was also confirmed for viruses.
  • the experimental apparatus is the same as in FIG. Escherichia coli phage MS2 was applied to each position B1 to B6 on the ground electrode and subjected to corona discharge treatment.
  • FIG. 9 shows the survival rate of MS2 at each application position after 5 hours of operation at a normal humidity of 22% to 28% and an ozone concentration of 8 ppm. Viability at each position B1-B6 was 70%-100% and could hardly be inactivated.
  • FIG. 10 shows the survival rate when the relative humidity of the flowing gas is humidified to 75 to 90% and the corona discharge treatment is performed for 1 hour. The survival rate at each position B2 to B6 was 11 to 39%, and the virus could be inactivated at a low ozone concentration in a short period of time compared to the case of normal humidity in FIG.
  • the position B1 is located upstream of the discharge line 32, and ozone and OH radicals do not reach it, so no deactivation effect is obtained.
  • the MS2 used in the test is Escherichia coli phage, which is recommended by the Japan Electrical Manufacturers' Association standard JEM1467 and is known as a virus often used for alternative evaluation.
  • FIG. 11 is a diagram showing an example of the relationship between the applied voltage and the discharge current due to the different polarities of the discharge electrodes in the charging device.
  • FIG. 12 is a diagram showing an example of the relationship between the discharge current and the ozone concentration depending on the difference in the polarity of the discharge electrode in the charging device.
  • 11 and 12 show an example of the result of verifying the characteristic change due to the difference in polarity of the discharge wire 32 in the air cleaner 100A (see FIG. 5).
  • 11 and 12 illustrate the case where the flow velocity (wind velocity) of the air A inside the internal space 20 is 9 m/s.
  • the voltage on the horizontal axis indicates the high voltage HV1 applied to the discharge wire 32
  • the current on the vertical axis indicates the discharge current flowing through the discharge wire 32.
  • the high voltage HV1 applied to the discharge wire 32 is higher when the polarity of the discharge wire 32 is positive than when the polarity of the discharge wire 32 is negative.
  • the higher the high voltage HV1 applied to the discharge wire 32 the higher the fine particle collection efficiency of the collection device 50. Therefore, by setting the polarity of the discharge wire 32 to the positive polarity, it is possible to improve the collection rate of fine particles in the collection device 50 .
  • the current on the horizontal axis indicates the discharge current flowing through the discharge wire 32
  • the ozone concentration on the horizontal axis indicates the ozone concentration in the internal space 20 .
  • the ozone concentration at positive polarity was about 1/8 of the ozone concentration at negative polarity. Therefore, by making the polarity of the discharge wire 32 positive, the ozone concentration in the internal space 20 was suppressed.
  • the air cleaner may further include an irradiation device that irradiates the internal space 20 with ultraviolet rays that inactivate viruses. This further improves the effect of inactivating viruses.
  • REFERENCE SIGNS LIST 10 housing 11 suction port 12 outlet 20 internal space 30, 30A, 30B charging device 31 discharge section 32 discharge wire 33, 34 ground electrode 35 discharge electrode group 36 discharge section 37 discharge electrode 38 ground electrode 39 insulator 40 humidifier 50, 50A collection device 51 electric field generator 52, 53 collection electrode 54 high voltage electrode 60 discharge device 61 fan 80 control device 90 filter 100, 100A, 100B air cleaner

Abstract

La présente invention concerne un purificateur d'air comprenant : un espace intérieur qui est interposé entre un orifice d'aspiration et un orifice de soufflage ; un dispositif de charge qui charge des microparticules contenues dans l'air qui s'écoule dans l'espace intérieur à partir de l'orifice d'aspiration ; un dispositif d'humidification qui humidifie l'air ; un dispositif de collecte qui utilise une force électrostatique pour collecter les microparticules chargées à partir de l'air ; et un dispositif d'éjection qui éjecte l'air du dispositif de collecte à l'orifice de soufflage. Le dispositif de charge charge les microparticules en utilisant une décharge corona, par exemple.
PCT/JP2022/004924 2021-02-17 2022-02-08 Purificateur d'air WO2022176711A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2021023166A JP7041930B1 (ja) 2021-02-17 2021-02-17 空気清浄機
JP2021-023166 2021-10-25

Publications (1)

Publication Number Publication Date
WO2022176711A1 true WO2022176711A1 (fr) 2022-08-25

Family

ID=81214388

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2022/004924 WO2022176711A1 (fr) 2021-02-17 2022-02-08 Purificateur d'air

Country Status (2)

Country Link
JP (1) JP7041930B1 (fr)
WO (1) WO2022176711A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257662A (ja) * 1985-09-05 1987-03-13 Nippon Denso Co Ltd 空気清浄器
JPH01194922A (ja) * 1988-01-29 1989-08-04 Nippon Light Metal Co Ltd 空気清浄化方法及びその装置
JPH04317753A (ja) * 1991-04-17 1992-11-09 Sawafuji Electric Co Ltd 加湿器付き空気清浄装置
JPH0544959A (ja) * 1991-08-09 1993-02-23 Takasago Thermal Eng Co Ltd 空気浄化調和装置
JPH1015333A (ja) * 1996-06-28 1998-01-20 Geochto:Kk 空気清浄化方法とその装置
JPH10202144A (ja) * 1997-01-23 1998-08-04 Fuji Electric Co Ltd トンネル用電気集じん機
JP2001137741A (ja) * 1999-11-15 2001-05-22 Ooden:Kk 電気集塵ユニット
JP2005125070A (ja) * 2003-10-03 2005-05-19 Daikin Ind Ltd 空気浄化装置
JP2009125653A (ja) * 2007-11-22 2009-06-11 Daikin Ind Ltd 空気浄化装置
JP2012075485A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 空気清浄装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51104476A (ja) * 1975-03-13 1976-09-16 Kochiwa Seisakusho Kk Kiekisetsushokuhohooyobisochi
JPH01274852A (ja) * 1988-04-27 1989-11-02 Mitsubishi Heavy Ind Ltd ダクト型電気集じん器
JP3393270B2 (ja) * 1994-10-17 2003-04-07 増田 佳子 コロナ放電ユニット
JPH10113577A (ja) * 1996-10-10 1998-05-06 Yasukawa Control Kk 空気清浄装置の荷電部
JP2003275291A (ja) * 2002-03-27 2003-09-30 Mitsubishi Electric Corp 空気清浄装置
JP2005021736A (ja) * 2003-06-30 2005-01-27 Erudekku:Kk クロスフロー式の湿式電気集塵機
JP2007330898A (ja) * 2006-06-15 2007-12-27 Daikin Ind Ltd 集塵装置
EP2431681A1 (fr) * 2007-10-30 2012-03-21 Büchi Labortechnik AG Chauffage, procédé de chauffage et de laminage et séchoir de pulvérisation
JP5714955B2 (ja) * 2011-03-25 2015-05-07 大阪瓦斯株式会社 空調装置
KR101233390B1 (ko) * 2012-03-12 2013-02-19 주식회사 지홈 전기집진 장치 및 전기집진 방법
CN102692043B (zh) * 2012-05-08 2013-09-11 广东德塑科技有限公司 一种免拆洗油烟净化机

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6257662A (ja) * 1985-09-05 1987-03-13 Nippon Denso Co Ltd 空気清浄器
JPH01194922A (ja) * 1988-01-29 1989-08-04 Nippon Light Metal Co Ltd 空気清浄化方法及びその装置
JPH04317753A (ja) * 1991-04-17 1992-11-09 Sawafuji Electric Co Ltd 加湿器付き空気清浄装置
JPH0544959A (ja) * 1991-08-09 1993-02-23 Takasago Thermal Eng Co Ltd 空気浄化調和装置
JPH1015333A (ja) * 1996-06-28 1998-01-20 Geochto:Kk 空気清浄化方法とその装置
JPH10202144A (ja) * 1997-01-23 1998-08-04 Fuji Electric Co Ltd トンネル用電気集じん機
JP2001137741A (ja) * 1999-11-15 2001-05-22 Ooden:Kk 電気集塵ユニット
JP2005125070A (ja) * 2003-10-03 2005-05-19 Daikin Ind Ltd 空気浄化装置
JP2009125653A (ja) * 2007-11-22 2009-06-11 Daikin Ind Ltd 空気浄化装置
JP2012075485A (ja) * 2010-09-30 2012-04-19 Daikin Industries Ltd 空気清浄装置

Also Published As

Publication number Publication date
JP7041930B1 (ja) 2022-03-25
JP2022125531A (ja) 2022-08-29

Similar Documents

Publication Publication Date Title
JP3852429B2 (ja) 空気清浄機
CN104501313B (zh) 一种无需更换滤网的空气净化器
WO2016024419A1 (fr) Dispositif de purification de l'air et d'humidification équipé d'une fonction d'élimination des bactéries
US7803213B2 (en) Apparatus and method for enhancing filtration
CN104819519A (zh) 一种复合型交叉静电电场空气净化装置
JP5774119B2 (ja) 微生物・ウイルスの捕捉・不活化方法
US10744515B2 (en) Gas purifying apparatus
KR20200067380A (ko) X선 선량이 자동 제어되어 분사하는 x선을 이용한 공기청정기
JP2008034220A (ja) 放電電極素子およびイオナイザー
US11117138B2 (en) Systems and methods for gas cleaning using electrostatic precipitation and photoionization
WO2022176711A1 (fr) Purificateur d'air
CN203964196U (zh) 一种高处理净化器
CN209726377U (zh) 一种等离子空气消毒机
KR101942658B1 (ko) 입자를 대전시킬 수 있는 플라즈마 발생장치를 이용한 미세먼지 제거기
US20210039112A1 (en) An air purification system
WO2022176700A1 (fr) Purificateur d'air
JP2011092897A (ja) 高効率迷路式空気処理装置
KR20200067388A (ko) X선을 이용한 공기청정기
JP3520137B2 (ja) 集塵装置
JP2002319471A (ja) イオン発生素子及びそれを備えた装置
WO2022014110A1 (fr) Dispositif de purification d'air et dispositif de climatisation
CN116697512A (zh) 水雾洗装置
RU2790421C1 (ru) Устройство электростатической очистки воздуха и способ его применения
JP7196550B2 (ja) 空気清浄装置
JP3159313U (ja) 高効率迷路式空気処理装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22756032

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22756032

Country of ref document: EP

Kind code of ref document: A1