WO2020158850A1 - Dispositif de purification d'air - Google Patents

Dispositif de purification d'air Download PDF

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Publication number
WO2020158850A1
WO2020158850A1 PCT/JP2020/003379 JP2020003379W WO2020158850A1 WO 2020158850 A1 WO2020158850 A1 WO 2020158850A1 JP 2020003379 W JP2020003379 W JP 2020003379W WO 2020158850 A1 WO2020158850 A1 WO 2020158850A1
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WO
WIPO (PCT)
Prior art keywords
hypochlorous acid
aqueous solution
water
air
water storage
Prior art date
Application number
PCT/JP2020/003379
Other languages
English (en)
Japanese (ja)
Inventor
陽子 石田
林　智裕
真司 吉田
昌彦 河崎
茂俊 堀切
裕貴 水野
祥太 井深
Original Assignee
パナソニックＩｐマネジメント株式会社
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Application filed by パナソニックＩｐマネジメント株式会社 filed Critical パナソニックＩｐマネジメント株式会社
Priority to JP2020569715A priority Critical patent/JP7345087B2/ja
Publication of WO2020158850A1 publication Critical patent/WO2020158850A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • 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
    • 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
    • A61L9/04—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone using substances evaporated in the air without heating
    • A61L9/12—Apparatus, e.g. holders, therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/16—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using rotating elements

Definitions

  • the present disclosure relates to an air purification device that removes bacteria (bacteria, viruses, airborne bacteria, odors, etc. in the air (sterilization, deodorization) using water containing hypochlorous acid.
  • a method of generating fine water particles such as a drug to sterilize a target space a method of passing air through a filter containing an aqueous solution of a drug (for example, Patent Document 1 below) and a centrifugal force by a rotating body are used.
  • a method of ejecting the drug aqueous solution from the pores using pressurized air for example, Patent Documents 3 and 4 below
  • ultrasonic vibration for example, the following Patent Document 5.
  • ⁇ Hypochlorous acid water can be used in the method of generating fine water particles such as chemicals for the purpose of sterilizing and deodorizing the target space.
  • hypochlorous acid diffuses into the air in the state of being contained in fine water particles or in the state of gas, it can come into contact with bacteria, viruses and odorous components present in the air to remove them.
  • hypochlorous acid In order to maintain the disinfecting and deodorizing effects of such hypochlorous acid for a long time, always adjust the concentration of hypochlorous acid blown from the device to the space into the space It is necessary to maintain a constant concentration of hypochlorous acid.
  • the supply of hypochlorous acid was accompanied by humidification.
  • the target space is excessively humidified.
  • excessive humidification of the space may cause a drop in room temperature.
  • controlling the amount of hypochlorous acid aqueous solution produced by adjusting the electrolysis strength independently of the amount of humidification requires time for electrolysis, and there is a time lag until hypochlorous acid is supplied to the space. It is possible that the sterilization and deodorization effects of the space will not be maintained.
  • the present disclosure aims to provide an air purifying device capable of independently controlling the concentration of hypochlorous acid blown from the device with respect to the humidification amount.
  • the air purification apparatus of the present disclosure includes a housing having a suction port that sucks in air and a blowout port that blows out the air sucked from the suction port.
  • An air blower is provided in the housing to ventilate air from the suction port to the air outlet.
  • An air passage is provided between the suction port and the air outlet.
  • a detection unit that detects the concentration of hypochlorous acid contained in the air sucked from the suction port, and a liquid micronization chamber that contains micronized hypochlorous acid water in the passing air. I have it.
  • the liquid refining chamber is equipped with a collision wall, a pumping pipe, a hypochlorous acid supply unit, and a height adjustment unit.
  • the collision wall collides with the hypochlorous acid water released by the centrifugal force of the rotating plate.
  • the pumping pipe rotates coaxially with the rotary plate and pumps the hypochlorous acid aqueous solution to the central portion side of the rotary plate.
  • the hypochlorous acid supply unit supplies the hypochlorous acid aqueous solution to the inside of the pumping pipe.
  • the height adjusting unit adjusts the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe.
  • the case has a control unit.
  • the control unit adjusts the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe according to the concentration of hypochlorous acid detected by the detection unit.
  • the control unit adjusts the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe, it is possible to adjust the amount of the hypochlorous acid aqueous solution to be pumped to the central portion side of the rotating plate.
  • the particle size of the hypochlorous acid water to be collided with can be changed. That is, the amount of hypochlorous acid volatilized in the air passage can be adjusted.
  • the concentration of hypochlorous acid blown into the space can be controlled with a width larger than the humidification amount. That is, the concentration of hypochlorous acid blown out from the device can be controlled independently of the amount of humidification.
  • FIG. 1 is an external view of an air purification device according to a first embodiment of the present disclosure.
  • FIG. 2 is a diagram illustrating a schematic cross section of the air purification device according to the first embodiment of the present disclosure.
  • FIG. 3A is a perspective view showing a configuration when the number of rotating plates is increased in the water pump of the first embodiment of the present disclosure.
  • FIG. 3B is a side view showing the configuration when the number of rotating plates is increased in the water pump of the first embodiment of the present disclosure.
  • FIG. 3C is a side view showing the configuration when the number of rotary plates is increased in the water pump of the first embodiment of the present disclosure.
  • FIG. 3A is a perspective view showing a configuration when the number of rotating plates is increased in the water pump of the first embodiment of the present disclosure.
  • FIG. 3B is a side view showing the configuration when the number of rotating plates is increased in the water pump of the first embodiment of the present disclosure.
  • FIG. 3C is a side view showing the configuration when the number of rotary
  • FIG. 4A is a diagram showing an example of the liquid level (water level) of the hypochlorous acid aqueous solution in the pumping pipe in the air purification apparatus of the first embodiment of the present disclosure.
  • FIG. 4B is a diagram showing a relationship between the liquid level height (water level) of the hypochlorous acid aqueous solution in the pumping pipe and the blown out hypochlorous acid concentration in the air purification device of the first embodiment of the present disclosure.
  • FIG. 4C is a diagram showing the relationship between the liquid level height (water level) of the hypochlorous acid aqueous solution in the pumping pipe and the humidification amount in the air purification device of the first embodiment of the present disclosure.
  • FIG. 4A is a diagram showing an example of the liquid level (water level) of the hypochlorous acid aqueous solution in the pumping pipe in the air purification apparatus of the first embodiment of the present disclosure.
  • FIG. 4B is a diagram showing a relationship between the liquid level height (water level) of the
  • FIG. 5 is a schematic diagram showing another form of the injection device in the air purification device of the first embodiment of the present disclosure.
  • FIG. 6 is a diagram showing an embodiment of an air purification device in a ventilation air conditioning system according to Embodiment 2 of the present disclosure.
  • FIG. 7 is a figure showing the schematic cross section of the air purification apparatus of Embodiment 3 of this indication.
  • FIG. 8 is a figure showing the schematic cross section of the air purification apparatus of Embodiment 4 of this indication.
  • FIG. 9 is a figure showing the schematic cross section of the air purification apparatus of Embodiment 5 of this indication.
  • the air purification device includes a housing, a blower unit, a liquid atomization chamber, and a concentration detection unit.
  • the housing is provided with a suction port for sucking air and a blowout port for blowing out the air sucked from the suction port.
  • the air blower vents air from the suction port to the air outlet in the housing.
  • An air passage is provided between the suction port and the air outlet.
  • the concentration detector detects the concentration of hypochlorous acid contained in the air sucked from the suction port.
  • the liquid refining chamber is one in which the passing air contains the atomized hypochlorous acid aqueous solution.
  • the liquid atomization chamber is provided with a collision wall, a rotary plate, a pumping pipe, a hypochlorous acid supply unit, and a height detection unit.
  • the collision wall collides with the hypochlorous acid aqueous solution released by the centrifugal force of the rotating plate.
  • the pumping pipe rotates coaxially with the rotary plate and pumps the hypochlorous acid aqueous solution to the central portion side of the rotary plate.
  • the hypochlorous acid supply unit supplies the hypochlorous acid aqueous solution to the inside of the pumping pipe.
  • the height detection unit detects the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe.
  • the housing is provided with a height adjusting unit for adjusting the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe according to the concentration of hypochlorous acid detected by the concentration detecting unit.
  • the air sucked from the suction port passes through the inside of the liquid atomization device, so that the air comes into contact with the fine water particles containing hypochlorous acid and the gaseous hypochlorous acid. That is, since airborne bacteria and odorous components contained in the air are removed, clean air can be obtained from the air outlet.
  • the height of the hypochlorous acid aqueous solution in the pumping pipe is adjusted, the film thickness of the hypochlorous acid pumped to the center side of the rotating plate is adjusted, and the hypochlorous acid water to be collided with the collision wall is Since the particle size can be changed, the amount of hypochlorous acid volatilized in the air passage can be adjusted. That is, it is possible to greatly change the concentration of hypochlorous acid to be blown out, compared with the amount of humidification.
  • the air purification device is equipped with a water storage unit that stores hypochlorous acid water on the bottom surface of the liquid atomization chamber.
  • the pumping pipe is a cylinder whose upper end and lower end are open and whose upper end has a larger cross-sectional area than its lower end.
  • the pumping pipe is arranged with the axis of rotation in the vertical direction and with the lower end of the pumping pipe immersed in the reservoir. ing.
  • the hypochlorous acid supply unit supplies hypochlorous acid to the water storage unit based on an instruction from the height adjustment unit.
  • the inner hypochlorous acid aqueous solution is pumped to the upper end of the pump pipe.
  • the size of the inner circumference and the distance from the water surface to the upper end differ depending on the height (water level) of the water surface of the hypochlorous acid aqueous solution, so the amount of the hypochlorous acid aqueous solution sucked up differs.
  • the hypochlorous acid aqueous solution that has reached the upper end has its thickness adjusted inside the rotating plate, and hypochlorous acid is released from the rotating plate by centrifugal force.
  • the particle size of the acid water can be changed. That is, by adjusting the height of the water surface of the hypochlorous acid aqueous solution, the amount of hypochlorous acid volatilized in the air duct can be adjusted.
  • the pumping pipe of the air purifying device is a tubular body arranged with the rotation axis in the vertical direction, and the cross-sectional area of the upper end is made larger than the lower end, and the upper end is opened and the lower end is closed to form a water storage section.
  • the hypochlorous acid supply unit is provided with a water supply pipe for supplying the hypochlorous acid aqueous solution into the pumping pipe. Hypochlorous acid is supplied to the water storage unit based on the instruction from the height adjustment unit.
  • the size of the inner circumference and the distance from the water surface to the top end differ depending on the height (water level) of the hypochlorous acid aqueous solution, so the amount of hypochlorous acid sucked up. Is adjusted. That is, the thickness of the hypochlorous acid aqueous solution reaching the upper end of the pumping pipe is adjusted at the inner portion of the rotary plate, and the particle size of the hypochlorous acid aqueous solution discharged from the rotary plate by centrifugal force can be changed. .. That is, the amount of hypochlorous acid volatilized in the air passage can be adjusted.
  • the liquid refining chamber of the air purification device has a water storage unit that stores the hypochlorous acid aqueous solution at the bottom. Further, the liquid atomization chamber and the hypochlorous acid supply unit are connected by a water supply flow path and a recovery flow path.
  • the supply flow passage is a flow passage for supplying the hypochlorous acid aqueous solution to the water storage section through the water supply pipe by the operation of the pump.
  • the supply flow path includes a water supply pipe, a pump, and a supply port that is one end of the water supply pipe. The supply port is arranged in the liquid atomization chamber.
  • the recovery channel is a channel for recovering the hypochlorous acid aqueous solution stored in the water storage section from the recovery port through the recovery pipe to the hypochlorous acid supply section by opening the opening/closing valve.
  • the recovery passageway includes a recovery pipe, a pump, and a recovery port that is one end of the recovery pipe.
  • the recovery port is arranged in the water storage section of the liquid atomization chamber.
  • hypochlorous acid supply unit is located lower than the recovery port, and the recovery port is located at the bottom of the water storage unit.
  • the height adjusting unit adjusts the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe by switching the operation of the on-off valve and the pump.
  • the pump By this, by operating the pump, it is possible to supply the hypochlorous acid aqueous solution from the hypochlorous acid supply unit to the liquid supply micronization chamber through the water supply pipe. Further, by opening the on-off valve, the hypochlorous acid aqueous solution stored in the liquid atomizing chamber can be recovered through the recovery pipe to the hypochlorous acid supply unit. That is, the height adjusting unit can switch the operation of the on-off valve and the pump to adjust the height of the liquid level of the hypochlorous acid solution in the pumping pipe.
  • the liquid atomizing chamber of the air purifying apparatus is provided with a water storage section for storing the hypochlorous acid aqueous solution in the upper part. Further, the liquid atomization chamber and the hypochlorous acid supply unit are connected by a water supply flow path and a recovery flow path.
  • the supply flow path is a flow path that supplies the hypochlorous acid aqueous solution to the water storage section through the water supply pipe by opening the on-off valve.
  • the supply flow path includes a water supply pipe, an opening/closing valve, and a supply port that is one end of the water supply pipe.
  • the supply port is arranged in the liquid atomization chamber.
  • the recovery channel is a channel for recovering the hypochlorous acid aqueous solution stored in the water storage part from the recovery port through the recovery pipe to the hypochlorous acid supply part by the operation of the pump.
  • the recovery passageway includes a recovery pipe, a pump, and a recovery port that is one end of the recovery pipe.
  • the recovery port is arranged in the water storage section of the liquid atomization chamber.
  • hypochlorous acid supply part is located higher than the supply port, and the recovery port is located at the bottom of the water storage part.
  • the height adjusting unit adjusts the height of the liquid surface of the hypochlorous acid aqueous solution in the pumping pipe by switching the operation of the on-off valve and the pump.
  • the on-off valve By doing this, by opening the on-off valve, it is possible to supply hypochlorous acid from the hypochlorous acid supply unit to the liquid supply micronization chamber through the water supply pipe. Further, by operating the pump, the hypochlorous acid stored in the liquid atomization chamber can be recovered from the recovery port to the hypochlorous acid supply unit through the recovery pipe. That is, the height adjusting unit can switch the operation of the on-off valve and the pump to adjust the height of the liquid level of the hypochlorous acid solution in the pumping pipe.
  • the air purification device 1 includes a substantially box-shaped housing 2.
  • An intake port 3 is provided on the side surface of the housing 2, and an outlet 4 is provided on the top surface of the housing 2.
  • a liquid atomizing chamber 5, a blower unit 6, a concentration detecting unit 7, and a height adjusting unit 8 are provided in the housing 2.
  • an air passage 9 is formed which communicates with the air outlet 4 from the air inlet 3 through the liquid atomization chamber 5 and the air blower 6. That is, the air sucked from the intake port 3 passes through the liquid atomization chamber 5, and then is exhausted from the outlet port 4.
  • the concentration detection unit 7 is arranged on the upstream side of the air flow with respect to the liquid atomization chamber 5. The concentration detector 7 detects the concentration of hypochlorous acid contained in the passing air.
  • the air passage may be branched so that only a part of the air sucked from the intake port 3 passes through the liquid atomization chamber 5.
  • the air air passage 9 may be branched in the housing 2, and the liquid atomization chamber 5 may be provided in one of the branched air passages.
  • the liquid atomization chamber 5 includes a hypochlorous acid supply unit 11, a collision wall 12, a water storage unit 13, a height detection unit 14, and an injection device 15.
  • the collision wall 12 may be formed integrally with the side wall of the liquid atomization chamber 5.
  • the water storage section 13 is arranged below the liquid atomization chamber 5.
  • the hypochlorous acid supply section 11 has a supply port 17 opened in the liquid atomization chamber 5 via a water supply pipe 16.
  • a method of replenishing the hypochlorous acid supply section 11 with an aqueous solution containing hypochlorous acid, or an electrode inside the hypochlorous acid supply section 11 Can be used, and a method of electrolyzing water containing chloride ions to generate water can be used.
  • At least the hypochlorous acid supply unit 11 is a tank capable of storing the hypochlorous acid aqueous solution therein.
  • the hypochlorous acid supply part 11 should just be equipped with the pump (not shown) which can send the stored hypochlorous acid aqueous solution to the supply port 17.
  • the height detection unit 14 can detect the height of the liquid surface of the hypochlorous acid aqueous solution stored in the water storage unit 13 below the liquid atomization chamber 5. Then, based on the detection signal from the height detection unit 14, the height adjustment unit 8 can issue an instruction to supply the hypochlorous acid aqueous solution to the hypochlorous acid supply unit 11. That is, the hypochlorous acid supply unit 11 can supply the hypochlorous acid aqueous solution to the water storage unit 13 based on the instruction of the height adjustment unit 8. Therefore, in the hypochlorous acid supply unit 11, the relationship between the concentration of hypochlorous acid detected by the concentration detection unit 7 and the height of the liquid surface of the hypochlorous acid aqueous solution stored in the water storage unit 13 should be determined. is important.
  • the injection device 15 is composed of a rotary motor 18, a rotary shaft 19, and a pumping pipe 20.
  • the pumping pipe 20 is arranged vertically in the liquid atomization chamber 5 via a rotary motor 18 and a rotary shaft 19 installed on the top surface 21.
  • the pumping pipe 20 has a cylindrical shape and a truncated cone shape. Both of the two truncated cone-shaped bottom surfaces are open, the bottom surface on the side with the smaller opening area is arranged below the liquid surface of the water storage section 13, and the rotating plate 22 protruding to the outer periphery is provided on the bottom surface with the large opening area. Is equipped with.
  • the diameter of the rotary plate 22 may be changed or the number of the rotary plates 22 may be increased depending on the amount of air processed by the air purification device 1. When the number of the rotary plates 22 is added as shown in FIG.
  • the rotary plates 22 can be provided at predetermined intervals in the direction of the rotary shaft 19 as shown in FIG. 3B.
  • the rotary plate 22a other than the uppermost stage be provided with the opening 20a at the connection point between the rotary plate 22a and the pumping pipe. That is, the side surface of the pumping pipe 20 is provided with the opening 20a connected to the upper surface of the added rotary plate 22a.
  • the openings 20a are preferably provided for each predetermined center angle with respect to one rotating plate 22a (the center angle is 180 degrees in the figure). From the opening 20a, it becomes possible to blow out the hypochlorous acid aqueous solution onto each rotary plate 22a.
  • an obstacle such as an eliminator may be provided in the gap formed between the pumping pipe 20 and the collision wall 12.
  • the collision wall 12 is provided so as to include a position at the same height as the rotary plate 22 in the liquid atomization chamber 5.
  • the rotary motor 18 rotates the rotary shaft 19, and the pumping pipe 20 rotates as the rotary shaft 19 rotates.
  • the water stored in the water storage portion 13 by the rotation of the pumping pipe 20 rises from the lower end side to the upper end side while rotating along the circumference (inner wall surface) of the pumping pipe 20 by the centrifugal force.
  • the water that rises while rotating on the inner wall of the pumping pipe 20 spreads on the circumference along with the increase in the cross section of the pumping pipe 20, moves to the rotating plate 22 at the upper end, and spreads thinly to form a water film. Since the amount of water is adjusted when the water moves from the lower end side to the upper end side in the pumping pipe 20, the thickness of the water film on the rotary plate 22 becomes uniform.
  • the water film formed on the upper surface of the rotating plate 22 spreads from the central portion of the rotating plate 22 to the outer extending portion at high speed due to the centrifugal force generated by the rotation, and is discharged as a water drop from the outer extending portion.
  • the discharged water droplets collide with the collision wall 12, are further miniaturized, and are discharged from the outlet 4 into the target space by the ventilation by the blower unit 6. Or, it is vaporized during transportation by the air.
  • fine droplets can be added to the air blown out from the air purification device 1, the target space can be humidified.
  • the temperature and humidity of the inhaled air are detected by the detection unit provided in the air duct 9, the rotation speed of the pumping pipe 20 of the injection device 15 is changed, and the amount of water droplets emitted from the injection device 15 is changed. You can That is, the amount of moisture contained in the air can be controlled to control the amount of humidification of the target space.
  • hypochlorous acid water is stored in the water storage unit 13.
  • Hypochlorous acid water can be supplied from the hypochlorous acid supply unit 11 to the water storage unit 13 to contain hypochlorous acid in the air, and the hypochlorous acid can be discharged to the target space.
  • the height adjusting unit 8 By supplying the hypochlorous acid aqueous solution to the water storage unit 13 based on the instruction of the height adjusting unit 8, the height (water level) of the liquid level in the pumping pipe 20 can be changed.
  • the height adjusting unit 8 detects the concentration of hypochlorous acid in the air sucked from the target space with the concentration detecting unit 7 provided in the air air passage 9 on the upstream side of the liquid atomizing chamber 5. , And gives an instruction to the hypochlorous acid supply unit 11.
  • the height adjustment unit 8 issues an instruction to supply the hypochlorous acid aqueous solution to the hypochlorous acid supply unit 11, and
  • the chloric acid supply unit 11 changes the supply amount of hypochlorous acid water and controls the water level in which the pumping pipe 20 is immersed (the rotation speed of the pumping pipe 20 is not changed), so that the amount of humidification is not changed and the hypochlorous acid is changed. It is possible to control the concentration of.
  • the height of the liquid surface in the pumping pipe 20 is changed, the size (circumferential length) of the portion where the liquid surface of the hypochlorous acid aqueous solution and the inner wall of the pumping pipe 20 contact changes, and The amount of aqueous acid solution can be varied. Further, the distance from the liquid surface of the hypochlorous acid aqueous solution to the upper end is changed in the pumping pipe 20, and the degree of thinning of the film thickness due to the expansion of the inner diameter of the pumping pipe 20 can be changed. As described above, the two bottom surfaces of the pumping pipe 20 are both open, and the bottom surface on the side with the smaller opening area is submerged in the water in the water storage section 13. Therefore, the water level in the pumping tube 20 is It also agrees with the water level of 13.
  • the thickness of the water film formed by the rotary plate 22 changes, and the particle size of the water droplets jetted from the jet device 15 can be changed. Then, as the particle size changes, the amount of hypochlorous acid volatilized in the air duct 9 changes.
  • FIG. 4A An example of the height (water level) of the liquid level of the hypochlorous acid aqueous solution in the pumping pipe 20 is shown in FIG. 4A.
  • FIG. 4B The relationship between the concentration of hypochlorous acid blown out from the outlet 4 is shown in FIG. 4B, and the relationship between the water level in the pumping pipe 20 and the humidification amount is shown in FIG. 4C.
  • the humidification amount of the target space hardly changes from H1 to H2 and H3 even if the water level in the pumping pipe 20 rises.
  • the humidification amount does not change.
  • the height of the liquid surface of the hypochlorous acid aqueous solution may be increased.
  • the concentration of the hypochlorous acid blown out can be controlled by controlling the height of the liquid surface of the hypochlorous acid water supplied to the water storage unit 13, so It is possible to realize the maintenance of the sterilization/deodorization effect of the space more easily than the generation of new hypochlorous acid water by decomposition.
  • the concentration of hypochlorous acid blown out from the liquid atomization chamber 5 is determined by the wetness of the collision wall 12 and the amount of volatilization that accompanies changes in the surface area of water particles. That is, in the process of forming water droplets in the jetting device 15, by making the particle diameter uniform, it is possible to control the volatilization amount of hypochlorous acid to be blown out. To make the water particles uniform, it is necessary to form a uniform water film on the rotating plate 22.
  • the rotary plate 22 is provided with a structure for sucking water like the pumping pipe 20 of the present embodiment, and is It is preferable to have a function of making the amount of water uniform on one circumference on the plate 22.
  • FIG. 5 shows an injection device 15a different from the injection device 15.
  • the hypochlorous acid supply unit 11 may extend the water supply pipe 16 to guide the hypochlorous acid aqueous solution into the pumping pipe 20, so that the hypochlorous acid aqueous solution may be directly supplied to the inside of the pumping pipe 20.
  • the pumping pipe 20 is a cylindrical body in which the rotary shaft 19 is arranged in the vertical direction, as described above, and has a larger cross-sectional area at the upper end than at the lower end. In particular, it is possible to open the upper end and close the lower end. When the lower end is closed, the lower part of the pumping pipe 20 can be used as the water storage part 13.
  • the height (water level) of the liquid level in the pumping pipe 20 is controlled by supplying the hypochlorous acid aqueous solution from the upper part of the pumping pipe 20 into the pumping pipe 20 using the water supply pipe 16.
  • the amount of hypochlorous acid water to be supplied can be reduced.
  • an air purification device for decontaminating bacteria is installed in a branch chamber in a ventilation air conditioning system.
  • the air purification device 1 includes a substantially box-shaped housing 2, and an intake port 3 is provided on a side surface of the housing 2 and an air outlet 4 is provided on a top surface of the housing 2.
  • the air purification device 31 of the present embodiment is attached to the ceiling or the ceiling of a building as shown in FIG. Since the housing 32 is desired to be thin, both the intake port 3 and the outlet port 4 are provided on the side surface of the box shape.
  • the ventilation air conditioning system 33 has, as its main components, an indoor unit 34, a circulation blower 35, an indoor suction opening 36, an indoor blowout opening 37, an exhaust opening 38, and an introduction.
  • the opening 39 and the ventilation device 40 are provided.
  • a heat exchange device 41 by a refrigeration cycle is provided.
  • the temperature of the air sucked from the indoor suction opening 36 is adjusted by the circulation blower 35, and the air is blown out from the indoor blowout opening 37 arranged in each room. Furthermore, the exhaust opening 38 arranged in the ceiling 42 of the house and the introduction opening 39 arranged in the outer wall 44 are provided.
  • the ventilation device 40 is provided with an exhaust blower 46. When the exhaust blower 46 is operated, a part of the air inside the house is discharged to the outside from the exhaust opening 38 and the outside air is taken into the house from the introduction opening 39.
  • the indoor unit 34 is provided with a branch chamber 47 and a branch duct 48.
  • the branch chamber 47 distributes air to be sent to each room, and is provided with a branch duct 48 that conveys the air to the indoor blowout opening 37 located on the downstream side of the branch chamber 47.
  • the air purification device 31 is arranged in the branch chamber 47.
  • the opening for introducing air into the branch chamber 47 is the intake port 3, and the connection port of the branch duct 48 is the outlet port 4.
  • the sterilization/deodorization performance can be enhanced by the operation of the air purification device 31 that sterilizes and deodorizes while performing ventilation and air conditioning of the indoor space.
  • the configuration in which the hypochlorous acid aqueous solution is supplied from the hypochlorous acid supply section to the water storage section 13 is different. That is, as shown in FIG. 7, the hypochlorous acid supply unit 50 is connected to the liquid atomization chamber 5 by the water supply pipe 16 and the recovery pipe 51. The water supply pipe 16 and the recovery pipe 51 are directly connected to the hypochlorous acid supply unit 50. A supply port 17 is provided at one end of the water supply pipe 16, and the supply port 17 is connected to the liquid atomization chamber 5. A recovery port 52 is provided at one end of the recovery pipe 51, and the recovery port 52 is connected to the lowest position of the water storage section 13.
  • the water supply pipe 16 is provided with a pump 53, and the recovery pipe 51 is provided with an opening/closing valve 54.
  • the water storage unit 13, the recovery port 52, the recovery pipe 51, and the hypochlorous acid supply unit 50 of the liquid atomization chamber 5 are arranged with a head in order from above.
  • the on-off valve 54 By opening the on-off valve 54 according to this arrangement order, the hypochlorous acid aqueous solution is recovered from the water storage section 13 to the hypochlorous acid supply section 50 by atmospheric pressure.
  • the opening/closing valve 54 is opened to cause atmospheric pressure to act on the hypochlorous acid aqueous solution in the water storage unit 13, and the recovery port 52 through the recovery pipe 51 to A recovery channel 55 capable of recovering the hypochlorous acid aqueous solution is formed in the chlorous acid supply unit 50.
  • a supply flow path 56 that can supply the hypochlorous acid aqueous solution stored in the hypochlorous acid supply unit 11 to the water storage unit 13 from the supply port 17 through the water supply pipe 16 is formed. ing. That is, by driving the pump 53, the hypochlorous acid aqueous solution is supplied from the hypochlorous acid supply unit 11 through the water supply pipe 16 and from the supply port 17 to the water storage unit 13.
  • the height adjusting unit 8 also switches the operations of the on-off valve 54 and the pump 53 to adjust the height of the liquid level of the hypochlorous acid solution in the water storage unit 13 and the pumping pipe 20.
  • the on-off valve 54 and the pump 53 are connected to the height adjusting unit 8 and operate according to a command from the height adjusting unit 8.
  • the height h 1 of the lower surface of the pump 53 is higher than the height h 2 of the liquid surface of the hypochlorous acid aqueous solution stored in the hypochlorous acid supply unit 50.
  • the hypochlorous acid aqueous solution is placed inside the pump 53. This is not preferable because it tends to be delayed.
  • the pump 53 operates according to a command from the height adjusting unit 8 to supply the hypochlorous acid aqueous solution from the hypochlorous acid supply unit 50 to the supply port 17 through the water supply pipe 16 (at this time, the opening/closing valve). 54 is closed). That is, the hypochlorous acid aqueous solution can be supplied from the hypochlorous acid supply unit 50 to the water storage unit 13. That is, it is possible to increase the height of the liquid surface of the hypochlorous acid aqueous solution while the height detection unit 14 detects the height of the liquid surface of the hypochlorous acid aqueous solution in the water storage unit 13.
  • the hypochlorous acid aqueous solution stored in the water storage unit 13 is discharged from the recovery port 52 through the recovery pipe 51. It can be recovered to the chloric acid supply unit 50. That is, it is possible to lower the height of the liquid surface of the hypochlorous acid aqueous solution while the height detector 14 detects the height of the liquid surface of the hypochlorous acid aqueous solution in the water storage portion 13.
  • the amount V 1 of the hypochlorous acid aqueous solution stored in the water storage unit 13 is equal to the storage water volume V 2 of the hypochlorous acid supply unit 50. It is desirable to keep it smaller than.
  • the height adjusting unit 8 can switch the operations of the on-off valve 54 and the pump 53 to adjust the height of the liquid level of the hypochlorous acid solution in the pumping pipe 20. Further, the hypochlorous acid aqueous solution drained from the water storage section 13 of the liquid micronization chamber 5 is recovered to the hypochlorous acid supply section 50, and the recovered hypochlorous acid aqueous solution is supplied to the liquid micronization chamber 5 again. And can be reused.
  • the configuration of supplying hypochlorous acid water from the hypochlorous acid supply unit to the water storage unit 13 is different. That is, as shown in FIG. 8, the hypochlorous acid supply unit 61 is connected to the liquid atomization chamber 5 by the water supply pipe 16 and the recovery pipe 51. The water supply pipe 16 and the recovery pipe 51 are directly connected to the hypochlorous acid supply unit 61. A supply port 17 is provided at one end of the water supply pipe 16, and the supply port 17 is connected to the liquid atomization chamber 5. A recovery port 52 is provided at one end of the recovery pipe 51, and the recovery port 52 is connected to the water storage unit 13. The water supply pipe 16 is provided with an opening/closing valve 54, and the recovery pipe 51 is provided with a pump 53. There is.
  • the hypochlorous acid supply unit 61, the water supply pipe 16, the supply port 17, and the water storage unit 13 are arranged with a head in order from above.
  • the on-off valve 54 By opening the on-off valve 54 in this order of arrangement, the hypochlorous acid aqueous solution is supplied to the water reservoir 13 by the atmospheric pressure.
  • the recovery port 52 is provided at the bottom of the liquid atomization chamber 5. More specifically, since the lower part of the liquid atomization chamber 5 is the water storage part 13, the recovery port 52 is provided at the lowest part of the water storage part 13.
  • the atmospheric pressure acts by opening the on-off valve 54, and the hypochlorous acid aqueous solution can be supplied from the hypochlorous acid supply unit 61 through the water supply pipe 16 to the liquid atomization chamber 5 through the supply port 17.
  • a possible supply channel 62 is formed.
  • a recovery passageway 63 is formed which can recover the hypochlorous acid aqueous solution stored in the water storage part 13 to the hypochlorous acid supply part 61 from the recovery port 52 through the recovery pipe 51. There is. That is, when the pump 53 is driven, the hypochlorous acid aqueous solution that has flowed into the recovery port 52 from the water storage unit 13 is recovered by the hypochlorous acid supply unit 61 through the recovery pipe 51.
  • the height adjusting unit 8 switches the operations of the on-off valve 54 and the pump 53 to adjust the height of the liquid level of the hypochlorous acid solution in the water storage unit 13 and the pumping pipe 20.
  • the on-off valve 54 and the pump 53 are connected to the height adjusting unit 8 and operate according to a command from the height adjusting unit 8.
  • the height h 3 of the lower surface of the pump 53 is located above the recovery port 52 with reference to the position of the recovery port 52. Arranging the lower surface of the pump 53 at a position lower than the recovery port 52 is not preferable because the hypochlorous acid aqueous solution is likely to stay inside the pump 53. Further, more preferably, the height h 3 of the lower surface of the pump 53 may be arranged above the liquid level height h 4 in the water storage section 13. This is because when this is done, the time during which the pump 53 is in contact with the hypochlorous acid aqueous solution is shortened, and the life of the pump 53 can be extended.
  • the opening/closing valve 54 is opened by a command from the height adjusting unit 8, and the hypochlorous acid is supplied from the hypochlorous acid supply unit 61 to the liquid atomization chamber 5 through the water supply pipe 16 and the supply port 17.
  • An aqueous solution can be supplied. That is, the height detection unit 14 can increase the liquid level of the hypochlorous acid aqueous solution while detecting the liquid level of the hypochlorous acid aqueous solution in the water storage unit 13.
  • the hypochlorous acid aqueous solution stored in the water storage unit 13 is collected from the recovery port 52 through the recovery pipe 51. It can be collected in the supply unit 61. That is, the height detection unit 14 can lower the liquid level of the hypochlorous acid aqueous solution while detecting the height of the liquid level of the hypochlorous acid aqueous solution in the water storage unit 13.
  • the height adjusting unit 8 can switch the operations of the on-off valve 54 and the pump 53 to adjust the height of the liquid level of the hypochlorous acid solution in the pumping pipe 20.
  • the hypochlorous acid aqueous solution drained from the water storage section 13 of the liquid atomization chamber 5 is recovered by the hypochlorous acid supply unit 61, supplied again to the liquid atomization chamber 5, and reused.
  • the hypochlorous acid supply unit 11, the hypochlorous acid supply unit 50, and the hypochlorous acid supply unit 61 have already been described as the hypochlorous acid supply unit.
  • a hypochlorous acid supply unit 11, a hypochlorous acid supply unit 50, and a hypochlorous acid supply unit are provided in order to continuously remove bacteria, viruses, floating bacteria and odors in the air.
  • a configuration for supplying water to any of the parts 61 will be described.
  • a hypochlorous acid supply unit 11 representing these will be described with reference to FIG. Note that, for ease of understanding, the same components as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.
  • a water supply port 72 is provided above the hypochlorous acid supply unit 11.
  • the water supply port 72 is connected to city water by an intake pipe 73. City water is supplied from the water supply port 72.
  • the intake pipe 73 is equipped with a flow rate control unit 76.
  • the flow rate control at the time of water supply by the flow rate control unit 76 is performed according to the water level detected by the water level detection unit 77 provided in the hypochlorous acid supply unit 11.
  • a signal is sent to the height adjusting unit 8 and the height adjusting unit 8 sends a command to the flow rate adjusting unit 76 to adjust the flow rate.
  • a water retaining part (not shown) may be provided to store city water or a hypochlorous acid aqueous solution.
  • the water retention section is arranged at a position higher than the hypochlorous acid supply section 11.
  • a water softening device (not shown) may be provided in the pipe of the water intake pipe 73.
  • a water supply port 72, an intake pipe 73, a flow rate control unit 76, and a water level detection unit 77 may be provided. it can.
  • the hypochlorous acid aqueous solution stored in the hypochlorous acid supply unit 11 is sent to the liquid atomization chamber 5 and becomes small, the signal based on the water level detected by the water level detection unit 77 becomes high. Is sent to the adjusting unit 8. As a result, the height adjusting unit 8 sends a command to the flow rate adjusting unit 76. In the flow rate adjusting unit 76, the amount of water flowing through the intake pipe 73 is adjusted, and new water (city water or hypochlorous acid aqueous solution) is supplied to the hypochlorous acid supply unit 11 through the water supply port 72. ..
  • hypochlorous acid supply unit 11 since water is always supplied to the hypochlorous acid supply unit 11, it is possible to stably generate an aqueous solution of hypochlorous acid and supply it to the liquid atomization chamber 5. That is, since it becomes possible to continuously supply the aqueous solution of hypochlorous acid to the liquid atomization chamber 5, the concentration of hypochlorous acid blown from the air purifying device into the space can be maintained at a predetermined concentration. The cleanliness of can be maintained.
  • the air purifier is expected to play an active role as an air purifier that removes bacteria and deodorizes household, office, and public spaces.
  • Air Purification Device 2 Housing 3 Inlet 4 Outlet 5 Liquid Refining Chamber 6 Blower 7 Concentration Detector 8 Height Adjuster 9 Air Airway 11 Hypochlorous Acid Supply 12 Collision Wall 13 Water Storage 14 Height Detector 15 Injection device 15a Injection device 16 Water supply pipe 17 Supply port 18 Rotation motor 19 Rotation shaft 20 Pumping pipe 21 Top surface 22 Rotation plate 22a Rotation plate 23 Bottom face 31 on the lower end side 31 Air purification device 32 Housing 33 Ventilation and air conditioning system 34 Indoors Machine 35 Circulation blower 36 Indoor suction opening 37 Indoor blowout opening 38 Exhaust opening 39 Inlet opening 40 Ventilator 41 Heat exchange device 42 House ceiling 44 Outer wall 46 Exhaust blower 47 Branch chamber 48 Branch duct 50 Hypochlorous acid Supply unit 51 Recovery pipe 52 Recovery port 53 Pump 54 Open/close valve 55 Recovery flow path 56 Supply flow path 61 Hypochlorous acid supply unit 62 Supply flow path 63 Recovery flow path 72 Water supply port 73 Water intake pipe 76 Flow rate control unit 77 Water level detection unit

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

Abstract

L'invention concerne un dispositif de désinfection et de désodorisation d'espace qui comprend un boîtier pourvu d'une entrée d'air et d'une sortie d'air. L'intérieur du boîtier est pourvu d'une chambre d'atomisation de liquide, d'un conduit d'air et d'un ventilateur. Le conduit d'air relie l'entrée d'air à la sortie d'air par l'intermédiaire de la chambre d'atomisation de liquide. Le ventilateur souffle de l'air dans le conduit d'air en direction de la sortie d'air. La chambre d'atomisation de liquide comporte une unité d'alimentation en acide hypochloreux, une unité de stockage d'eau et un dispositif d'injection. Le dispositif d'injection aspire l'eau depuis l'unité de stockage d'eau et évacue des gouttelettes d'eau en direction d'une paroi de collision. Dans le dispositif d'injection, la taille de particule des gouttelettes d'eau à évacuer est modifiée et la concentration en acide hypochloreux à expulser dans un espace à traiter est modifiée par régulation du niveau d'eau pour le remplissage des tuyaux d'eau.
PCT/JP2020/003379 2019-01-31 2020-01-30 Dispositif de purification d'air WO2020158850A1 (fr)

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WO2022202071A1 (fr) * 2021-03-22 2022-09-29 パナソニックＩｐマネジメント株式会社 Dispositif de nettoyage d'espace
WO2022209447A1 (fr) * 2021-03-30 2022-10-06 パナソニックＩｐマネジメント株式会社 Dispositif de purification d'espace
WO2022239531A1 (fr) * 2021-05-14 2022-11-17 パナソニックＩｐマネジメント株式会社 Dispositif de purification d'espace
JP2022175542A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム
JP2022175541A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム
JP2022175543A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム

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JPH04108063A (ja) * 1990-08-27 1992-04-09 Hitachi Ltd 車両用空気調和装置及びその運転方法
EP0638773A1 (fr) * 1993-08-10 1995-02-15 Scat Equipment Pte Ltd. Méthode d'épuration d'air, appareil d'épuration et générateur de brouillard
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WO2022202071A1 (fr) * 2021-03-22 2022-09-29 パナソニックＩｐマネジメント株式会社 Dispositif de nettoyage d'espace
JP2022145989A (ja) * 2021-03-22 2022-10-05 パナソニックＩｐマネジメント株式会社 空間浄化装置
JP7266223B2 (ja) 2021-03-22 2023-04-28 パナソニックＩｐマネジメント株式会社 空間浄化装置
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WO2022239531A1 (fr) * 2021-05-14 2022-11-17 パナソニックＩｐマネジメント株式会社 Dispositif de purification d'espace
JP2022175542A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム
JP2022175541A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム
JP2022175543A (ja) * 2021-05-14 2022-11-25 パナソニックＩｐマネジメント株式会社 空調システム
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JP7352784B2 (ja) 2021-05-14 2023-09-29 パナソニックＩｐマネジメント株式会社 空調システム
JP7386402B2 (ja) 2021-05-14 2023-11-27 パナソニックＩｐマネジメント株式会社 空調システム
JP7403048B2 (ja) 2021-05-14 2023-12-22 パナソニックＩｐマネジメント株式会社 空間浄化装置

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