WO2024135426A1 - Dispositif de purification d'espace - Google Patents

Dispositif de purification d'espace Download PDF

Info

Publication number
WO2024135426A1
WO2024135426A1 PCT/JP2023/044148 JP2023044148W WO2024135426A1 WO 2024135426 A1 WO2024135426 A1 WO 2024135426A1 JP 2023044148 W JP2023044148 W JP 2023044148W WO 2024135426 A1 WO2024135426 A1 WO 2024135426A1
Authority
WO
WIPO (PCT)
Prior art keywords
aqueous solution
air
hypochlorous acid
electrolyte
electrolysis
Prior art date
Application number
PCT/JP2023/044148
Other languages
English (en)
Japanese (ja)
Inventor
正太郎 山口
拓也 和田
将秀 福本
真司 吉田
Original Assignee
パナソニックＩｐマネジメント株式会社
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 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
Publication of WO2024135426A1 publication Critical patent/WO2024135426A1/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
    • A61L9/01—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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • 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

Definitions

  • This disclosure relates to a space purification device used to disinfect living spaces, etc.
  • a space purification device has been known as a device for disinfecting living spaces and reducing the risk of infectious diseases, in which an aqueous solution containing hypochlorous acid (hereinafter, hypochlorous acid aqueous solution) is impregnated into an evaporation filter, and air containing hypochlorous acid gas is released to the outside by passing the air through the evaporation filter (see, for example, Patent Document 1).
  • hypochlorous acid aqueous solution an aqueous solution containing hypochlorous acid
  • evaporation filter air containing hypochlorous acid gas is released to the outside by passing the air through the evaporation filter
  • an aqueous solution of hypochlorous acid is generated by electrolyzing an aqueous solution of sodium chloride or potassium chloride (hereinafter referred to as electrolyte) stored in a storage section.
  • the space purification device then passes the generated hypochlorous acid aqueous solution through a vaporization filter and exposes it to circulating air, thereby releasing air containing hypochlorous acid gas to the outside and purifying the living space.
  • electrolyte sodium chloride or potassium chloride
  • electrolysis is performed with a small amount of electrolyte stored in the storage section, the amount of electrolyte is small compared to the consumption associated with the electrolysis of sodium chloride or potassium chloride (hereinafter referred to as electrolyte), and the electrolyte concentration of the entire electrolyte is more likely to decrease.
  • the amount of electrolyte that can be stored in the storage section is small due to the miniaturization of the space purification device, if the generation of a hypochlorous acid aqueous solution by electrolysis of the electrolyte and the purification operation using the generated hypochlorous acid aqueous solution are repeatedly performed, the electrolyte concentration decreases over time, and the generation efficiency of hypochlorous acid by electrolysis of the electrolyte (the ratio of generated hypochlorous acid to the current value passed through the electrolyte) decreases. As a result, the amount of hypochlorous acid generated by electrolysis of the electrolyte decreases.
  • the amount of hypochlorous acid contained in the hypochlorous acid aqueous solution decreases over time, and as a result, there is a concern that the amount of hypochlorous acid gas contained in the air circulating during the purification operation cannot be stably maintained.
  • the present disclosure aims to solve the above-mentioned problems of the past and provide a space purification device that can stably maintain the amount of hypochlorous acid gas contained in the released air even when the device is compact and the amount of electrolyte that can be stored in the storage section is small.
  • the spatial purification device comprises a storage section that stores an aqueous solution containing sodium chloride or potassium chloride inside a housing, an electrolysis section that is provided inside the storage section and that electrolyzes the aqueous solution to produce an aqueous hypochlorous acid solution, an air introduction section that introduces air from outside the housing into the storage section, and an air discharge section that discharges air in the space above the aqueous hypochlorous acid solution in the storage section to the outside of the housing.
  • the electrolysis section electrolyzes the aqueous solution with sodium chloride or potassium chloride precipitated in the aqueous solution to produce an aqueous hypochlorous acid solution.
  • the present disclosure even if the amount of electrolyte that can be stored in the storage section is small due to miniaturization, it is possible to provide a space purification device that can stably maintain the amount of hypochlorous acid gas contained in the released air.
  • FIG. 1 is a perspective view showing a space purification device including a space purification device according to a first embodiment of the present disclosure being used indoors.
  • FIG. 2 is a schematic diagram showing the configuration of the space purification device.
  • FIG. 3 is a perspective view showing the appearance of the space purification device.
  • FIG. 4 is a transparent perspective view showing the configuration of the space purification device.
  • FIG. 5 is a transparent side view showing the flow of the aqueous solution and the flow of air in a storage portion of the space purification device.
  • FIG. 6 is a see-through side view showing the flow of the aqueous solution and the flow of air in a storage portion in a space purification device according to a modified example.
  • the spatial purification device includes a storage section that stores an aqueous solution containing sodium chloride or potassium chloride (hereinafter, electrolyte) inside a housing, an electrolysis section that is provided inside the storage section and that electrolyzes the electrolyte to produce an aqueous hypochlorous acid solution, an air introduction section that introduces air from outside the housing into the storage section, and an air discharge section that discharges air in the space above the aqueous hypochlorous acid solution in the storage section to the outside of the housing.
  • the electrolysis section generates an aqueous hypochlorous acid solution by electrolyzing the electrolyte with sodium chloride or potassium chloride (hereinafter, electrolyte) precipitated in the electrolyte.
  • the storage section may be provided with a precipitate filter that prevents electrolyte precipitates from floating up from the solute region where the electrolyte precipitates to the solution region located above the solute region and in which the electrolysis section is installed.
  • a precipitate filter that prevents electrolyte precipitates from floating up from the solute region where the electrolyte precipitates to the solution region located above the solute region and in which the electrolysis section is installed.
  • the stirring section has an aqueous solution suction port that draws in the electrolyte solution, and an aqueous solution outlet that blows the electrolyte solution drawn in from the aqueous solution suction port into the storage section, and it is preferable that the aqueous solution outlet blows the electrolyte solution toward the electrolysis section to generate a water flow.
  • the water flow can be generated by concentrating it on the electrolysis section, so that it is possible to reliably prevent the oxygen gas and hydrogen gas bubbles generated on the surface of the electrode section by electrolysis from adhering to the electrolysis section as they are.
  • the spatial purification device is provided in the storage section and includes a stirring section for stirring the hypochlorous acid aqueous solution, and the stirring section has an aqueous solution suction port for sucking in the hypochlorous acid aqueous solution and an aqueous solution outlet for blowing out the hypochlorous acid aqueous solution sucked in from the aqueous solution suction port into the storage section, and the aqueous solution outlet may be configured to blow out the hypochlorous acid aqueous solution toward the upper space between the air introduction section and the air discharge section.
  • the hypochlorous acid aqueous solution is present in the upper space between the air introduction section and the air discharge section in the form of a water column or water droplets.
  • the air introduced from the air introduction section can come into contact with the hypochlorous acid aqueous solution over a wider area in the upper space by the hypochlorous acid aqueous solution that has become a water column or water droplets until the air introduced from the air introduction section is discharged from the air discharge section.
  • This allows the amount of hypochlorous acid gas contained in the circulating air to be increased even with the same hypochlorous acid concentration of the hypochlorous acid aqueous solution.
  • the amount of hypochlorous acid solution that can be stored in the storage section by miniaturizing the device is small, it is possible to generate the necessary amount of hypochlorous acid gas to be contained in the released air.
  • Fig. 1 is a perspective view showing a state in which a space purification device 2 equipped with a space purification device 11 according to the embodiment 1 of the present disclosure is used in a room 1.
  • FIG. 2 is a schematic diagram showing the configuration of the space purification device 2.
  • the space purification device 2 has a space purification device 11 inside. More specifically, as shown in FIG. 2, the space purification device 2 is configured with an intake port 8, a dust collection filter 9, a blower 10, the space purification device 11, and an outlet port 12.
  • the space purification device 2 draws in the intake air 3 from the intake port 8, removes dust, and blows it out from the outlet 12 into the room 1 as blown air 4 containing hypochlorous acid gas.
  • the space purification device 2 blows out the blown air 4 from the outlet 12
  • the space purification device 2 causes the blown air 4 to contain hypochlorous acid gas by the space purification device 11.
  • the intake port 8 is located on the lower right side of the front of the space purification device 2, and takes in intake air 3 from the room 1 into the interior of the space purification device 2.
  • the space purifier 11 takes in a part of the dust-removed air 5 as the introduced air 6, and after adding hypochlorous acid gas to the introduced air 6 inside the space purifier 11 (the upper space 23 in the storage section 13 described later), merges it with the dust-removed air 5 as the discharged air 7. As a result, the dust-removed air 5 becomes air containing hypochlorous acid gas.
  • the wind pressure of the blower 10 can be used as the driving force for sucking in the introduced air 6 and releasing it as the discharged air 7.
  • the introduced air 6 can be introduced into the space purifier 11 by the wind pressure of the blower 10, and the discharged air 7 can be released from the space purifier 11. Details of the space purifier 11 will be described later.
  • the air outlet 12 is provided on the top surface of the space purification device 2, and blows out the dust-free air 5 containing hypochlorous acid gas as blown air 4 into the room 1 after flowing through the internal air passage.
  • the spatial purification device 11 is configured to have an air inlet section 15, an air outlet section 16, a storage section 13, an electrolysis section 14, an agitation section 20, and a sediment filter 19.
  • the air discharge section 16 blows the introduced air 6 taken into the interior of the space purification device 11 from the air introduction section 15 into the internal air passage of the space purification device 2 as discharged air 7 containing hypochlorous acid gas.
  • the outlet of the air release section 16 is located downstream of the inlet of the air introduction section 15 in the internal air passage. The process by which the introduced air 6 contains hypochlorous acid gas will be described later.
  • the electrolyte 13a is an aqueous solution for generating the hypochlorous acid aqueous solution 13b by electrolysis, and is an aqueous solution in which sodium chloride or potassium chloride is dissolved.
  • the electrolyte 13a is stored in the storage section 13 in a state in which the electrolyte 13c made of sodium chloride or potassium chloride is precipitated without being completely dissolved. The reaction that occurs in the electrolysis section 14 using this electrolyte 13a will be described later.
  • sodium chloride or potassium chloride is used as the electrolyte 13c, but this is not limited thereto.
  • chloride ions since the presence of chloride ions is sufficient to generate the hypochlorous acid aqueous solution 13b, it is also possible to use other chlorides such as calcium chloride or lithium chloride. Therefore, in this disclosure, “sodium chloride or potassium chloride” means “broadly including those that contain chloride ions,” including calcium chloride, lithium chloride, etc.
  • the hypochlorous acid aqueous solution 13b is a solution produced by electrolyzing the electrolyte 13a in a state in which the electrolyte 13c is precipitated in the electrolyte 13a, and is a so-called aqueous solution containing hypochlorous acid.
  • the hydrogen ion concentration (pH) of the hypochlorous acid aqueous solution 13b is preferably 5 to 13, and more preferably 5 to 7. This is because there is a risk that the hypochlorous acid aqueous solution 13b will evaporate into chlorine gas if the pH falls below 5, and also because, if the pH is 5 or higher, the lower the pH, the more likely it is to evaporate into hypochlorous acid gas.
  • the solute region 17 is located at the bottom side of the storage section 13 and is a region that holds the electrolyte solution 13a that contains a precipitate of electrolyte 13c.
  • the solution region 18 is located above the solute region 17, and is a region that holds the electrolyte solution 13a that does not contain precipitates of the electrolyte 13c.
  • the electrolysis section 14 and the stirring section 20 are installed in a state in which they are immersed in the solution region 18.
  • a precipitate filter 19 is provided between the solute region 17 and the solution region 18.
  • the precipitate filter 19 is provided on the bottom side (solute region 17 side) of the solution region 18 so as to block the opening that connects the solute region 17 and the solution region 18, which are partitioned from each other. The precipitate filter 19 will be described later.
  • electrolyte 13a in the solute region 17 and solution region 18 described above may be read as an aqueous hypochlorous acid solution 13b, or as a mixture of the electrolyte 13a and the aqueous hypochlorous acid solution 13b.
  • the upper space 23 is an air region that occurs above the liquid surface of the electrolyte 13a and the hypochlorous acid aqueous solution 13b inside the storage section 13.
  • the upper space 23 is connected in communication with the internal air passage of the space purification device 2 by the air inlet section 15 and the air outlet section 16.
  • introduced air 6 is introduced into the upper space 23 from the internal air passage of the space purification device 2 through the air inlet section 15.
  • the air in the upper space 23 air containing hypochlorous acid gas
  • the electrolysis unit 14 is a member that electrolyzes the electrolyte 13a stored in the storage unit 13 to generate an aqueous hypochlorous acid solution 13b.
  • the electrolysis unit 14 is installed on the bottom side of the solution region 18 and immersed in the electrolyte 13a in the solution region 18.
  • the electrolysis unit 14 is, for example, a pair of electrodes, an anode and a cathode, configured with a catalytic coating on the surface of a conductive substrate.
  • the electrolysis unit 14 electrolyzes the electrolyte 13a by passing a current through the pair of electrodes.
  • the chloride ions contained in the electrolyte 13a are electrolyzed in the electrolysis unit 14, and hypochlorous acid is generated.
  • the electrolyte 13a is electrolyzed in the electrolysis unit 14 the following three types of reactions mainly occur:
  • the electrolysis unit 14 generates hypochlorous acid from chloride ions contained in the electrolytic solution 13a by causing a reaction of formula (1) at the anode, and generates an aqueous hypochlorous acid solution 13b.
  • the electrolysis unit 14 generates oxygen and hydrogen ions from water by causing the reaction of formula (2).
  • the electrolysis unit 14 generates hydrogen from the hydrogen ions contained in the electrolyte 13a by causing the reaction of formula (3) at the cathode.
  • the ratio of the reaction of formula (1) occurring among the reactions of formula (1) and formula (2) occurring due to the electrolysis of the electrolyte 13a (hereinafter, referred to as the hypochlorous acid generation efficiency) is , depends on the concentration of chloride ions contained in the left side of formula (1). Specifically, the higher the concentration of chloride ions, the higher the efficiency of hypochlorous acid generation. In order to generate hypochlorous acid efficiently, it is important to maintain a constant concentration of chloride ions. In this embodiment, the precipitated electrolyte 13c supplies the chloride ions consumed from the electrolytic solution 13a by the reaction of formula (1) to the electrolytic solution 13a.
  • the electrolyte has a role of always keeping the electrolyte saturated (about 4.4 mol/L in the case of sodium chloride, about 3.4 mol/L in the case of potassium chloride). This allows the electrolyte to be stored in the storage unit 13 in a compact size. Even if the amount of 13a is small, the concentration of chloride ions contained in the electrolyte 13a can be maintained constant, and the efficiency of hypochlorous acid generation can be maintained.
  • the chloride ion concentration of the electrolyte 13a that decreases due to electrolysis is proportional to the volume of the electrolyte 13a. If the volume of the electrolyte 13a is 55 mL and the volume of the electrolyte in a conventional device that uses a lot of electrolyte is 1.5 L, the rate of decrease in the chloride ion concentration due to electrolysis will be about 27 times.
  • the amount of hypochlorous acid contained in the hypochlorous acid aqueous solution 13b will decrease over time, and as a result, it will be impossible to maintain a stable amount of hypochlorous acid gas contained in the air circulating during purification operation.
  • the stirring unit 20 is a member that stirs the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b stored in the storage unit 13 within the storage unit 13.
  • the stirring unit 20 is installed with its main part immersed in the electrolyte solution 13a in the solution area 18, vertically above the electrolysis unit 14.
  • the stirring unit 20 has an aqueous solution suction port 20a, an aqueous solution outlet 20b, and a drive unit 20c, and by operating the drive unit 20c, the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b are sucked in through the aqueous solution suction port 20a, and the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b are blown out through the aqueous solution outlet 20b.
  • the aqueous solution suction port 20a is a cylindrical suction port that draws in the electrolyte 13a and the aqueous hypochlorous acid solution 13b in the storage section 13.
  • the aqueous solution suction port 20a is installed in a substantially horizontal position relative to the bottom of the storage section 13 and facing the side of the storage section 13.
  • the aqueous solution outlet 20b is an outlet that discharges the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b sucked in from the aqueous solution suction port 20a into the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b in the storage section 13.
  • the aqueous solution outlet 20b is installed facing the liquid surface of the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b vertically upward.
  • the aqueous solution outlet 20b then blows the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b toward the upper space 23 between the air introduction section 15 and the air discharge section 16, generating a water flow 21 (see FIG. 5).
  • the drive unit 20c is a motor member that generates a water flow 21 (see FIG. 5) for stirring the solution. More specifically, the drive unit 20c rotates to generate a flow that sucks in the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b from the aqueous solution suction port 20a and blows out the electrolyte solution 13a and the hypochlorous acid aqueous solution 13b from the aqueous solution outlet 20b. Unlike the main part (the aqueous solution suction port 20a and the aqueous solution outlet 20b), the drive unit 20c is installed outside the storage unit 13.
  • the stirring unit 20 has the role of accelerating the electrolysis of the electrolyte 13a and the generation of hypochlorous acid gas.
  • the operation of the stirring unit 20 generates a stirred water flow 21b, which will be described later, and this can suppress the adhesion of air bubbles generated in the electrolysis unit 14 to the electrolysis unit 14.
  • the amount of hypochlorous acid gas contained in the introduced air 6 introduced from the air introduction unit 15 can be increased by blowing the hypochlorous acid aqueous solution 13b toward the upper space 23. Details of the water flow 21 generated by the stirring unit 20 will be described later.
  • the precipitate filter 19 is a filter that prevents the electrolyte 13c that has precipitated in the solute region 17 from floating up due to the water flow 21 generated by the agitator 20 and reaching the electrolysis section 14.
  • the precipitate filter 19 is provided between the solute region 17 and the solution region 18. As a result, the precipitate filter 19 prevents the precipitate of the electrolyte 13c from floating up and flowing from the solute region 17, where the electrolyte 13c precipitates, into the solution region 18, where the electrolysis section 14 is installed.
  • the space purification device 11 can take in dust-free air 5 from the internal air passage of the space purification equipment 2 as introduced air 6 and release it into the internal air passage as discharged air 7 containing hypochlorous acid gas.
  • Figure 5 is a transparent side view showing the flow of the aqueous solution and the flow of air in the storage unit 13 of the space purification device 11.
  • Air flow when the blower 10 is in operation, an air flow 22 is generated in the upper space 23 of the storage section 13, which is a flow from when the intake air 6 is introduced through the air intake section 15 until it is released from the air release section 16 as released air 7.
  • the air flow 22 can also be said to be a flow in which the intake air 6 introduced through the air intake section 15 pushes out the air in the upper space 23 as released air 7.
  • the water column or water droplets are present in the upper space 23 due to the blown water flow 21a, so the air flow 22 can come into gas-liquid contact with the hypochlorous acid aqueous solution 13b over a wider area than in the absence of a water column or water droplets.
  • the blown water flow 21a is a flow of water that is blown out from the aqueous solution outlet 20b of the stirring section 20 into the upper space 23.
  • the electrolyte solution 13a and the aqueous hypochlorous acid solution 13b that are blown out toward the upper space 23 can be present in the upper space 23 by the force of the blown water flow 21a causing the liquid surface to rise and become a water column, or by scattering into droplets.
  • the blown water flow 21a of the hypochlorous acid aqueous solution 13b is present in the upper space 23 in the form of a water column or water droplets, and thus can come into gas-liquid contact with the air flow 22 over a wider area than when there is no water column or water droplets. Therefore, even if the hypochlorous acid concentration of the hypochlorous acid aqueous solution 13b is the same, the amount of hypochlorous acid gas contained in the air flow 22 can be increased.
  • the agitated water flow 21b is a water flow that is created inside the electrolyte 13a and the hypochlorous acid aqueous solution 13b after the blown water flow 21a hits the liquid surface. After flowing from the liquid surface toward the bottom, the agitated water flow 21b reaches the sediment filter 19, which prevents water flow from occurring in the solute region 17, and the wall surface, where it changes direction and is sucked into the agitation unit 20 through the aqueous solution suction port 20a of the agitation unit 20.
  • the agitated water flow 21b of the electrolyte 13a flows through the electrolysis unit 14, which prevents the oxygen gas and hydrogen gas bubbles that are generated on the surface of the electrolysis unit 14 from adhering to the electrolysis unit 14.
  • the spatial purification device 11 is controlled so that it continuously supplies hypochlorous acid gas while generating hypochlorous acid by electrolysis for about 4 minutes every predetermined time (e.g., 10 minutes). Therefore, during the period when the supply of hypochlorous acid gas and electrolysis are performed simultaneously, the effects of the blown water flow 21a and stirred water flow 21b generated by the operation of the stirring unit 20 are obtained simultaneously.
  • the spatial purification device 11 according to the first embodiment can provide the following effects.
  • the space purification device 11 includes a storage section 13 that stores an aqueous solution containing sodium chloride or potassium chloride (hereinafter, electrolyte 13a) inside a housing, an electrolysis section 14 that is provided inside the storage section 13 and electrolyzes the electrolyte 13a to generate an aqueous hypochlorous acid solution 13b, an air introduction section 15 that draws in introduced air 6 from the outside of the housing (the internal air passage of the space purification device 2) and introduces it into the storage section 13, and an air discharge section 16 that discharges air in the space 23 above the aqueous hypochlorous acid solution 13b in the storage section 13 to the outside of the housing (the internal air passage of the space purification device 2).
  • electrolyte 13a an aqueous solution containing sodium chloride or potassium chloride
  • the spatial purification device 11 includes an agitation unit 20 that is provided in the storage unit 13 and that agitates the electrolyte 13a.
  • the agitation unit 20 is provided so as to generate a water flow in the electrolysis unit 14.
  • the water flow 21 agitated water flow 21b
  • the electrolysis unit 14 is electrolyzing the electrolyte 13a
  • the water flow 21 can prevent bubbles of oxygen gas and hydrogen gas generated on the surface of the electrolysis unit 14 by electrolysis from adhering to the electrolysis unit 14.
  • the space purification device 11 is provided in the storage section 13 and includes an agitation section 20 for agitating the hypochlorous acid aqueous solution 13b.
  • the agitation section 20 has an aqueous solution suction port 20a for sucking in the hypochlorous acid aqueous solution 13b and an aqueous solution outlet 20b for blowing out the hypochlorous acid aqueous solution 13b sucked in from the aqueous solution suction port 20a into the storage section 13.
  • the aqueous solution outlet 20b blows out the hypochlorous acid aqueous solution 13b toward the upper space 23 between the air introduction section 15 and the air discharge section 16.
  • the hypochlorous acid aqueous solution 13b is present in the upper space 23 between the air introduction section 15 and the air discharge section 16 in the form of a water column or water droplets.
  • the introduced air 6 introduced from the air introduction section 15 can come into contact with the hypochlorous acid aqueous solution 13b over a wider area in the upper space 23 before being discharged as discharged air 7 from the air discharge section 16.
  • hypochlorous acid concentration of the hypochlorous acid aqueous solution 13b required to release the desired amount of hypochlorous acid gas into the room 1 can be reduced, and the time required to electrolyze the electrolyte 13a and produce the hypochlorous acid aqueous solution 13b capable of releasing the desired amount of hypochlorous acid gas can be shortened.
  • the time required from starting operation of the device until the desired amount of hypochlorous acid gas can be released can be shortened, resulting in a space purification device 11 that can stabilize the amount of hypochlorous acid gas contained in the circulating air from an early stage.
  • Fig. 6 is a see-through side view showing the flow of air and the flow of aqueous solution in the storage unit 13 of the modified spatial purification device 11a.
  • the spatial purification device 11 according to the modified example differs from the spatial purification device 11 according to the first embodiment in that the direction of the aqueous solution outlet 20b1 of the stirring unit 20 is directed toward the electrolysis unit 14.
  • the rest of the configuration of the spatial purification device 11a is the same as that of the spatial purification device 11 according to the first embodiment.
  • the outlet direction of the aqueous solution outlet 20b1 in the stirring section 20 faces the electrolysis section 14 located diagonally below the stirring section 20.
  • the blowout water flow 21c flows toward the electrolysis unit 14, collides with the walls of the electrolysis unit 14 and the storage unit 13, changes direction, and is then sucked in from the aqueous solution suction port 20a of the stirring unit 20. In this way, the blowout water flow 21c also plays the role of a stirred water flow that stirs the electrolyte 13a and the hypochlorous acid aqueous solution 13b.
  • the stirring unit 20 has an aqueous solution suction port 20a that draws in the electrolyte 13a, and an aqueous solution outlet 20b1 that blows the electrolyte 13a drawn in from the aqueous solution suction port 20a into the storage unit 13, and the aqueous solution outlet 20b1 blows the electrolyte 13a toward the electrolysis unit 14 to generate a water flow 21 (blowout water flow 21c).
  • the water flow 21 can be generated by concentrating on the electrolysis unit 14, so that it is possible to reliably prevent the oxygen gas and hydrogen gas bubbles generated on the surface of the electrolysis unit 14 by electrolysis from adhering to the electrolysis unit 14 as they are.
  • the stirring unit 20 is a member having an aqueous solution suction port 20a and an aqueous solution outlet 20b that blows the electrolyte 13a sucked in from the aqueous solution suction port 20a into the storage unit 13, but this is not limited to this.
  • the water flow may be generated by a rotating fin or screw.
  • the spatial purification device disclosed herein is useful because it can stably maintain the amount of hypochlorous acid gas contained in the released air even when the amount of electrolyte that can be stored in the storage section is small due to its compact size.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Engineering & Computer Science (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

L'invention concerne un dispositif de purification d'espace (11) qui comprend : une unité de stockage (13) qui stocke, à l'intérieur d'un boîtier, une solution aqueuse (la solution d'électrolyse (13a) dans ce qui suit) qui contient du chlorure de sodium ou du chlorure de potassium ; une unité d'électrolyse (14) qui est disposée à l'intérieur de l'unité de stockage (13) et effectue une électrolyse de la solution d'électrolyse (13a) pour produire une solution aqueuse d'acide hypochloreux (13b) ; une unité d'admission d'air (15) qui aspire l'air depuis l'extérieur du boîtier et introduit l'air dans l'unité de stockage (13) ; et une unité d'évacuation d'air (16) qui évacue, vers l'extérieur du boîtier, de l'air dans un espace (23) au-dessus de la solution aqueuse d'acide hypochloreux (13b) dans l'unité de stockage (13). De plus, l'unité d'électrolyse (14) produit la solution aqueuse d'acide hypochloreux (13b) en effectuant une électrolyse de la solution d'électrolyse (13a) dans un état dans lequel du chlorure de sodium ou du chlorure de potassium (l'électrolyte (13c) dans ce qui suit) dans la solution d'électrolyse (13a) est précipité.
PCT/JP2023/044148 2022-12-22 2023-12-11 Dispositif de purification d'espace WO2024135426A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022-205780 2022-12-22
JP2022205780A JP2024090111A (ja) 2022-12-22 2022-12-22 空間浄化装置

Publications (1)

Publication Number Publication Date
WO2024135426A1 true WO2024135426A1 (fr) 2024-06-27

Family

ID=91588640

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2023/044148 WO2024135426A1 (fr) 2022-12-22 2023-12-11 Dispositif de purification d'espace

Country Status (2)

Country Link
JP (1) JP2024090111A (fr)
WO (1) WO2024135426A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162891A (ja) * 1986-12-26 1988-07-06 Matsushita Electric Ind Co Ltd 塩素ガス供給装置
JPH0899087A (ja) * 1994-09-29 1996-04-16 Tokico Ltd 電解水生成器
JP2000070945A (ja) * 1998-08-28 2000-03-07 Matsushita Electric Ind Co Ltd 電解装置
JP2002018250A (ja) * 2000-07-05 2002-01-22 Jonan Denki Kogyosho:Kk 飽和溶液生成タンク
JP2012046773A (ja) * 2010-08-24 2012-03-08 Japan Organo Co Ltd 塩類溶解槽および電解装置
JP2019069163A (ja) * 2015-05-22 2019-05-09 株式会社東芝 空間殺菌方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63162891A (ja) * 1986-12-26 1988-07-06 Matsushita Electric Ind Co Ltd 塩素ガス供給装置
JPH0899087A (ja) * 1994-09-29 1996-04-16 Tokico Ltd 電解水生成器
JP2000070945A (ja) * 1998-08-28 2000-03-07 Matsushita Electric Ind Co Ltd 電解装置
JP2002018250A (ja) * 2000-07-05 2002-01-22 Jonan Denki Kogyosho:Kk 飽和溶液生成タンク
JP2012046773A (ja) * 2010-08-24 2012-03-08 Japan Organo Co Ltd 塩類溶解槽および電解装置
JP2019069163A (ja) * 2015-05-22 2019-05-09 株式会社東芝 空間殺菌方法

Also Published As

Publication number Publication date
JP2024090111A (ja) 2024-07-04

Similar Documents

Publication Publication Date Title
JP4928869B2 (ja) 空気除菌装置
CN101032628A (zh) 空气除菌装置
CN1652879A (zh) 电解水喷雾装置
EP1798493A2 (fr) Appareil de filtrage de l'air
JP2007283180A (ja) オゾン水生成装置およびオゾン水生成方法
US20080072757A1 (en) Air filtering apparatus having scale removal detecting mechanism
CN1924475A (zh) 空调机
JP2008036135A (ja) 空気除菌装置
WO2024135426A1 (fr) Dispositif de purification d'espace
JP7198987B1 (ja) 空間浄化装置
WO2024176778A1 (fr) Purificateur d'espace
EP1788315A2 (fr) Dispositif de filtration d'air monté sur le sol
WO2023181590A1 (fr) Dispositif de purification d'espace
WO2024161816A1 (fr) Dispositif de purification d'air
WO2023228472A1 (fr) Dispositif de désinfection d'espace
JP2024139864A (ja) 空間浄化装置
JP2022049780A (ja) 次亜塩素酸水生成装置
JP2003311274A (ja) 水処理装置
JP2024119647A (ja) 空気浄化装置
WO2022209123A1 (fr) Dispositif de purification d'air
JPH07118002A (ja) 過酸化水素の製造方法及び製造装置
WO2022190613A1 (fr) Dispositif de purification d'air
JP2023027808A (ja) 空間除菌装置
JP2022182222A (ja) 空気調和装置
JP2023142338A (ja) 空気調和装置

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: 23906791

Country of ref document: EP

Kind code of ref document: A1