JP2012010829A - Air sterilization device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air sterilization device that has improved a contact efficiency of air with an electrolylic water on a gas-liquid contact member by almost evenly applying the air to the entire gas-liquid contact member.SOLUTION: The gas-liquid contact member 53 held by a base substrate 83 is gapped thereon and is disposed to face a wind direction plate 84 with a through-hole 85, and air suctioned from a suction grille 12 is sent toward the wind direction plate 84 so that the suctioned air contacts with the electrolylic water flowing down the gas-liquid contact member 53 flowing in the gap 86 through the through-hole 85.

Description

  The present invention relates to an air sterilization apparatus capable of removing airborne microorganisms (hereinafter simply referred to as “virus etc.”) such as bacteria, viruses and fungi.

  Conventionally, an air sterilization apparatus has been proposed in which electrolyzed tap water is electrolyzed to produce electrolyzed water containing active oxygen species, and viruses etc. floating in the air are removed using this electrolyzed water (for example, , See Patent Document 1). This type of air sterilization apparatus includes a non-ventilated base, and a gas-liquid contact member that is held by the base and at least the surface is made of a material that is inert to the active species. The electrolyzed water flows down from the upper part to the lower part of the gas, and by passing the air from the lower part to the upper part of the gas-liquid contact member, the virus in the air is brought into contact with the electrolyzed water on the gas-liquid contact member. It is intended to sterilize air by inactivating.

JP 2009-189729 A

However, in the conventional configuration, the air supplied to the gas-liquid contact member held on the base body is in a state of being biased toward the contact surface of the gas-liquid contact member depending on the position of the air circulation blower (ventilating means). There was a problem that the entire surface of the gas-liquid contact member could not be used effectively.
The present invention has been made in view of the above-described circumstances, and the air is almost uniformly applied to the entire surface of the gas-liquid contact member, thereby improving the contact efficiency between the air and the electrolyzed water on the gas-liquid contact member. An object of the present invention is to provide an air sterilization apparatus that achieves the above.

  In order to solve the above-described problems, the present invention provides an electrolyzed water generating means that is disposed in a housing and generates electrolyzed water containing active oxygen species by electrolyzing water, and is held by a non-ventilated base in the housing. A gas-liquid contact member formed of a material that is less reactive with the active oxygen species, and an electrolyzed water supply means for supplying the electrolyzed water above the gas-liquid contact member, The gas-liquid held by the base body, comprising: a blower fan for blowing air to a gas-liquid contact member; a suction port provided below the housing; and a blower port provided above the suction port A wind direction member having an opening with a gap in the contact member is disposed oppositely, air sucked from the suction port is sent toward the wind direction member, and air flowing into the gap through the opening is contacted with the gas-liquid Contact with electrolyzed water flowing down on the member And wherein the door.

  The present invention also provides an electrolyzed water generating means for electrolyzing water to generate electrolyzed water containing active oxygen species, a gas-liquid contact member that is held by a non-ventilated base and is supplied with the electrolyzed water. The gas-liquid contact member includes a blower fan that blows air, and a wind direction member having an opening is provided opposite to the gas-liquid contact member held by the base so as to be blown out from the blower fan. Air is sent toward the wind direction member, and the air flowing into the gap through the opening is brought into contact with electrolyzed water on the gas-liquid contact member.

  In these inventions, the opening formed in the wind direction member may be formed so that the opening area gradually decreases from the upstream side to the downstream side.

  In addition, the gas-liquid contact member and the airflow direction member are inclined substantially in parallel, and the electrolytic water flows down from the upper part to the lower part of the gas-liquid contact member held by the base, and the blower fan The air gap may be blown from the lower part to the upper part of the gas-liquid contact member.

  Moreover, the drain pan which receives the water which flows down from the said gas-liquid contact member may be provided, the water collect | recovered with this drain pan may be electrolyzed in the said electrolyzed water production | generation means, and it may supply to the said gas-liquid contact member again. The gas-liquid contact member may be made of any one of glass, ceramic, stainless steel, fluororesin, vinyl chloride resin, and epoxy resin, or a combination thereof.

  According to the present invention, a wind direction member having an opening with a gap formed in the gas-liquid contact member held on the base is disposed oppositely, air sucked from the suction port is sent toward the wind direction member, and the gap is formed through the opening. Since the inflowing air is brought into contact with the electrolyzed water flowing down on the gas-liquid contact member, the air can be applied almost evenly to the entire surface of the gas-liquid contact member, and the air and electrolyzed water on the gas-liquid contact member The contact efficiency is improved, and the sterilization performance can be improved.

It is an external appearance perspective view of the air sterilizer concerning this embodiment. It is a perspective view which shows the internal structure of an air sanitizer. It is a right side sectional view showing the internal configuration of the air sterilizer. It is a schematic diagram which shows the structure which circulates and supplies electrolyzed water to a gas-liquid contact member. It is a figure which shows the wind speed distribution of an air sanitizer. It is a figure which shows the wind speed distribution in the state which does not provide a wind direction board. It is a figure which shows the disinfection effect of the apparatus which provided the wind direction board, and the apparatus which does not provide the wind direction board.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an external perspective view of an air sterilization apparatus 1 according to an embodiment to which the present invention is applied, FIG. 2 is a perspective view showing an internal configuration of the air sterilization apparatus 1, and FIG. 2 is a right side cross-sectional view showing the internal configuration of the sterilization apparatus 1. FIG.
This air sterilizer 1 electrolyzes water to generate electrolyzed water containing a predetermined active oxygen species, and sterilizes indoor air sucked into the air sterilizer 1 using this electrolyzed water. This is a device for blowing clean air after sterilization into the room.
As shown in FIG. 1, the air sterilization apparatus 1 has a box-shaped casing 11 formed in a vertically long shape, and is installed on the floor, for example. In the housing 11, a suction grill (suction port) 12 is formed in the lower part of both side surfaces of the housing 11, and a suction port 15 is formed in the lower end portion of the front surface of the housing 11.
Further, an air outlet 13 is formed on the upper surface of the casing 11, and an auto louver 20 is provided at the air outlet 13 for changing the direction in which air is blown out. The auto louver 20 is configured to close the air outlet 13 when operation is stopped.

On the upper surface of the housing 11, an operation lid 16A disposed on the front surface side of the air outlet 13 and a tank opening / closing lid 14A disposed side by side on the operation lid 16A are formed. When the operation lid 16A is opened, as shown in FIG. 2, the operation panel 16 for performing various operations of the air sterilization apparatus 1 is exposed, and when the tank opening / closing lid 14A is opened, water supply to be described later via the tank outlet 14 The tank 41 can be taken in and out. In addition, gripping portions 17 are formed on the upper portions of both side surfaces of the housing 11. These gripping portions 17 are concave portions for holding the case 11 by hand, and the air sterilizer 1 can be lifted and moved by one person during transportation.
Further, as shown in FIG. 1, an upper cover member 18 and a lower cover member 19 arranged in the vertical direction are detachably disposed on the front surface of the housing 11, respectively. When the side cover member 19 is removed, the internal structure of the air sterilizer 1 is exposed. The lower cover member 19 includes an arc portion 19A curved toward the back side of the housing 11 at the lower end portion of the lower cover member 19, and the suction port 15 is formed in the arc portion 19A.

Next, the internal structure of the air sterilizer 1 will be described.
As shown in FIGS. 2 and 3, the housing 11 is provided with a support plate 21 that divides the interior of the housing 11 in the vertical direction, and is divided into an upper chamber 22 and a lower chamber 23. In the lower chamber 23, a blower fan 31 and a fan motor 32 are arranged, and a drainage tank 57 having a handle 57 </ b> A is accommodated through the partition plate 24 so as to be drawn out to the front side of the housing 11. ing. The blower fan 31, the fan motor 32, and the drainage tank 57 are arranged side by side.
A pre-filter 34 is detachably disposed between the blower fan 31 and the suction port 15, that is, at a position facing the lower cover member 19 (FIG. 1) in the lower chamber 23. The pre-filter 34 collects a large particle size filter 25 such as dust in the air sucked through the suction grill 12 and the suction port 15, and passes through the coarse dust filter 25. (Μm) A medium-performance filter 26 that collects the above-mentioned substances (for example, pollen) is provided. The prefilter 34 removes pollen, dust, and the like floating in the air sucked from the suction grill 12 and the suction port 15, and the removed air is supplied to the upper chamber 22 via the blower fan 31. .

In the upper chamber 22, an electrical box 39 is disposed on the support plate 21 above the blower fan 31 and the fan motor 32, and this electrical box 39 constitutes a control unit that controls the air sterilizer 1. Various electrical components such as a control board on which various devices are mounted and a power supply circuit for supplying a power supply voltage to the fan motor 32 are accommodated.
Above the electrical box 39, a gas-liquid contact member 53 for disinfecting the air supplied by the blower fan 31 to the electrolyzed water to disinfect the air is disposed. Below the gas-liquid contact member 53, a water receiving tray (drain pan) 42 having a water receiving portion 42A for receiving the electrolyzed water flowing down from the gas-liquid contact member 53 is disposed. The water receiving tray 42 includes a storage portion 42B formed on the deep bottom, and the storage portion 42B can store a large amount of electrolyzed water. The storage unit 42B is configured such that the electrolyzed water dropped into the water receiving unit 42A flows therein, and the electrolytic water is stored in the storage unit 42B. Further, the reservoir 42B extends above the drain tank 57.
Further, a water supply tank 41 is disposed on the storage part 42B, and water can be supplied from the water supply tank 41 to the storage part 42B.

Next, the flow of air in the air sterilizer 1 will be described.
As described above, the blower fan 31 is provided in the lower chamber 23 of the housing 11. As shown in FIG. 3, the blower port 31 </ b> A of the blower fan 31 is provided upward in the rear side portion of the housing 11, and communicates with a space 1 </ b> A as an air path extending vertically on the back side of the upper chamber 22. The space 1 </ b> A is formed by an air guide member 81 disposed on the back side of the housing 11 and an air guide plate 82 that is disposed to face the air guide member 81 and extends from the support plate 21 to the water tray 42. Yes. The air blown from the blower port 31A of the blower fan 31 passes through the space 1A as shown by an arrow X in FIG. 3 and is blown to the gas-liquid contact member 53.

The gas-liquid contact member 53 is made of a material inert to the active oxygen species described later, for example, glass wool formed in a fiber shape. In the present embodiment, glass wool (quartz wool) is used which is formed in a fiber shape in which water easily infiltrates due to capillary action in order to ensure water retention in the gas-liquid contact member 53, but is not limited thereto. The gas-liquid contact member 53 has a shape that can ensure a larger surface area, for example, frosted glass (cloudy glass) having irregularities formed on the glass surface, silica gel powder or glass wool supported or baked on the glass surface. You may use what was tied. Further, as a material of the gas-liquid contact member 53, a material in which active oxygen species such as hypochlorous acid, ozone and hydrogen peroxide are not destroyed or inactivated by the gas-liquid contact member 53, for example, ceramic , Stainless steel, fluororesin, vinyl chloride resin, epoxy resin, or other solid material, powdered material, or fibrous material. In addition, the gas-liquid contact member 53 to be used is not limited to any of the materials inactive to the active species as described above, and may be a combination thereof.
The gas-liquid contact member 53 is held by a base body 83 disposed on the front side of the housing 11. The base 83 is a plate-like member made of a material, for example, glass, which is non-ventilating so as not to allow air to pass therethrough and is inactive to active oxygen species like the gas-liquid contact member 53. The gas-liquid contact member 53 is held on the back surface 83A side of the base 83 by a fixing means that can be fixed by being hooked or pinched, and is provided with a predetermined inclination angle θ with respect to the horizontal direction. It arrange | positions on the water receiving tray 42A. In addition, the said inclination | tilt angle (theta) ensures the suitable contact time of the electrolyzed water and supply air in the gas-liquid contact member 53, and secures the path | route which reaches the blower outlet 13 of the air after the process in the air sanitizer 1. FIG. Therefore, an acute angle of 30 ° or more is desirable. In the present embodiment, the inclination angle is set to 65 °.

On the other hand, on the back side of the gas-liquid contact member 53, a wind direction plate (wind direction member) 84 is arranged with a gap 86 from the gas-liquid contact member 53. The wind direction plate 84 has substantially the same size as the gas-liquid contact member 53, and is provided substantially parallel to the base 83 that holds the gas-liquid contact member 53.
The wind direction plate 84 is formed with a through hole (opening) 85 for guiding the air supplied to the space 1 </ b> A to the gas-liquid contact member 53. The size of the through hole 85 is changed depending on the height position. In the present embodiment, the through hole 85 gradually opens from the lower part of the wind direction plate 84 on the upstream side of the air toward the upper part of the wind direction plate 84 on the downstream side of the air. The area is reduced. Specifically, the wind direction plate 84 is provided with seven rows of through-hole rows at the top and bottom, and the opening area of the through-hole of a certain step is about 70 to 80% of the opening area of the lower-stage through-hole. Is set. Further, the opening area of all the through holes 85 with respect to the wind direction plate 84 is desirably 40 to 50%, and is set to 45% in the present embodiment. If it is set to be smaller than the above range, the pressure loss increases and the blown air volume is reduced. If it is set to be larger than this range, there is a problem that the air supplied to the gas-liquid contact member 53 is biased.
The air that has flowed into the gap 86 through the through hole 85 of the wind direction plate 84 is guided upward along the surface of the gas-liquid contact member 53 and passes through the outlet filter 36 disposed below the outlet 13. Exhausted.

Next, a configuration in which electrolytic water is circulated and supplied to the gas-liquid contact member will be described.
As shown in FIG. 2, a water supply tank 41 is disposed on the front side of the reservoir 42B of the water tray 42, and water stored in advance in the water supply tank 41 is supplied to the reservoir 42B. The water supply tank 41 is a tank that supplies tap water containing chloride ions, and may be supplied with water from city water or the like through a water supply valve.

  Further, as shown in FIG. 4, a circulation pump 44 in which a water inlet 44A extends into the reservoir 42B is disposed on the back side of the reservoir 42B. The electrolytic cell 46 is connected. An electrolytic water supply pipe (electrolyzed water supply means) 71 is connected to the electrolytic tank 46. The electrolyzed water supply pipe 71 is disposed along the upper edge of the gas-liquid contact member 53 and has a water sprinkling part 71A having a large number of water spray holes. The electrolyzed water supply pipe 71 sprays electrolyzed water from the upper part of the gas-liquid contact member 53. .

  The electrolytic cell 46 includes a plurality of pairs of electrodes (not shown), and when these electrodes are energized, the tap water flowing into the electrolytic cell 46 is electrolyzed to generate active oxygen species. Here, the reactive oxygen species are oxygen molecules having an oxidation activity higher than that of normal oxygen and related substances, and in a narrow sense such as superoxide anion, singlet oxygen, hydroxy radical, or hydrogen peroxide. The active oxygen includes active oxygen in a broad sense such as ozone and hypohalous acid. The electrolytic cell 46 is arranged in the vicinity of the gas-liquid contact member 53 and is configured to be able to quickly supply the active oxygen species generated by electrolyzing tap water to the gas-liquid contact member 53.

  As the electrode, a metal material capable of easily generating hypochlorous acid by electrolysis, for example, a sintered electrode of platinum and iridium is used as an anode and a cathode. Electrolytic treatment is performed with these electrodes at predetermined current values while performing inversion at predetermined time intervals. In addition, the electrolyzed water (tap water etc.) used contains about 10 ppm or more of chloride ions, for example.

  Thus, at the anode, chloride ions emit electrons and react with water to produce hypochlorous acid. In addition, since chloride ions are present in water used for electrolysis, the potential rises, and hydroxide ions in the water to be electrolyzed generate active oxygen such as oxygen or ozone.

Next, the operation of the air sterilizer 1 will be described.
When the operation of the air sterilizer 1 is started, the circulation pump 44 is driven, and the tap water stored in the storage part 42B of the water receiving tray 42 is supplied to the electrolytic cell 46. In this electrolytic cell 46, the tap water is electrolyzed by energization of the electrodes to generate electrolyzed water containing active oxygen species (for example, hypochlorous acid). The electrolyzed water is sprayed to the upper edge portion of the gas-liquid contact member 53 through the sprinkling portion 71A of the electrolyzed water supply pipe 71.

  The electrolyzed water sprayed on the upper edge of the gas-liquid contact member 53 is provided at an angle with a predetermined angle as described above. Flow down toward The water dropped from the gas-liquid contact member 53 is received by the water receiving portion 42A of the water receiving tray 42, flows into the storage portion 42B through the water receiving portion 42A, and is supplied again to the electrolytic cell 46 by the circulation pump 44. The Thus, in this configuration, the water is a circulation type, and when the amount of water decreases due to evaporation or the like, the tap water in the water supply tank 41 is appropriately supplied to the storage portion 42B of the water tray 42.

  Air sucked into the casing 11 by the blower fan 31 is supplied to the gas-liquid contact member 53 from which the electrolyzed water flows down from the upper part to the lower part. In this case, the air blown out by the blower fan 31 flows into the gap 86 between the gas-liquid contact member 53 and the wind direction plate 84 through the through hole 85 of the wind direction plate 84. Since the gas-liquid contact member 53 is provided on the non-ventilated base 83, the air that has flowed into the gap 86 collides with the electrolyzed water on the gas-liquid contact member 53, and then the casing 11 through the blowout port 13. Be blown out.

  In this configuration, since the gas-liquid contact member 53 is inclined at a predetermined angle, the residence time of the electrolyzed water flowing down from the upper part to the lower part can be secured, and the gas-liquid contact member 53 Is formed of fibrous glass wool and held on the base 83, so that new electrolyzed water can be circulated sequentially while retaining a predetermined amount of electrolyzed water even by the capillary phenomenon of the gas-liquid contact member 53. it can. Therefore, the air colliding with the gas-liquid contact member 53 comes into contact with a sufficient amount of the electrolyzed water and can be treated effectively.

Next, the difference in wind speed distribution depending on the presence or absence of the wind direction plate will be described.
FIG. 5 is a diagram showing the wind speed distribution of the air sterilizer according to the present configuration, and FIG. 6 is a diagram showing the wind speed distribution in a state where no wind direction plate is provided. In these figures, the region where the wind speed is fast is represented by a dark color, and the region where the wind speed is slow is represented by a light color.
When the wind direction plate 84 is not provided, as shown in FIG. 6, the wind speed in the region near the surface of the gas-liquid contact member 53 tends to be slow, and the wind speed in the region away from the gas-liquid contact member 53 tends to increase. is there. For this reason, in the configuration in which the wind direction plate 84 is not provided, a part of the air sucked into the housing 11 is blown out from the outlet 13 without coming into contact with the electrolyzed water at the gas-liquid contact member 53. Accordingly, there is a problem that the contact efficiency between the electrolyzed water and air in the gas-liquid contact member 53 is not sufficient.
On the other hand, in the configuration in which the airflow direction plate 84 is provided with a gap 86 in the gas-liquid contact member 53, the wind speed is high when flowing into the gap 86 through each through hole 85 as shown in FIG. The wind speed flowing through the gap 86 along the surface of the gas-liquid contact member 53 can be increased. In particular, by making the opening area of the through-hole 85 gradually smaller from the air downstream toward the air upstream, air can be applied to the gas-liquid contact member 53 substantially evenly. For this reason, in this structure, the contact efficiency with the electrolyzed water and air in the gas-liquid contact member 53 can be improved, and the inactivation of the virus in air can be implement | achieved more effectively.

FIG. 7 is a diagram showing the sterilization effect of a device provided with the wind direction plate 84 and a device not provided with the wind direction plate 84.
In the experiment, the configuration except the wind direction plate 84 was the same, and a fungus mist containing 10 ⁶ (CFU / 100L_air) of Staphylococcus aureus was supplied into the laboratory, and the air sanitizer was operated under the same conditions. Thereafter, air in the laboratory was periodically collected, and the number of Staphylococcus aureus contained therein was measured.
According to this, in the apparatus not provided with the wind direction plate 84, S. aureus is set to approximately 0 (CFU / 100L_air), that is, until S. aureus contained in the air to be treated is killed to a detection limit or less. Whereas this time was 45 minutes, the apparatus provided with the wind direction plate 84 can kill Staphylococcus aureus contained in the air to be treated in 30 minutes, greatly reducing the processing time. I was able to.
As described above, the airflow direction plate 84 having the through hole 85 is provided opposite to the gas-liquid contact member 53 held by the base 83 so that the air sucked from the suction grill 12 is sent toward the wind direction plate 84 and penetrated. Since the air flowing into the gap 86 through the hole 85 is brought into contact with the electrolyzed water flowing down on the gas-liquid contact member 53, the air can be applied almost evenly to the entire surface of the gas-liquid contact member 53. The contact efficiency between air and electrolytic water on 53 is improved.
Therefore, by efficiently bringing the air and the electrolyzed water into contact with each other through the gas-liquid contact member 53, inactivation of viruses or the like floating in the air is promoted, and the odorous substance contained in the air is hypochlorous acid. It decomposes by reacting with or ionizes and dissolves. Accordingly, the sterilization and deodorization of the air are efficiently performed, and the cleaned air is discharged from the outlet 13.

  An example of influenza virus is given as an action mechanism for inactivating viruses and the like by reactive oxygen species. The above-mentioned reactive oxygen species have the action of destroying and eliminating (removing) the surface protein (spike) of influenza virus, which is essential for influenza infection. When this surface protein is destroyed, the influenza virus and a receptor (receptor) necessary for the infection of the influenza virus are not bound, and the infection is prevented. For this reason, the influenza virus floating in the air loses infectivity by contacting the electrolyzed water containing the active oxygen species in the gas-liquid contact member 53, so that the infection is prevented.

  Therefore, even if this air sterilization apparatus 1 is installed in a so-called large space such as a kindergarten, elementary / middle / high school, long-term care insurance facility, hospital, etc. Etc.) can be spread widely in the large space, and air sterilization and deodorization in the large space can be performed efficiently.

  Moreover, according to this embodiment, since the through-hole 85 formed in the wind direction plate has an opening area gradually reduced from the air upstream side toward the downstream side, the gas-liquid contact member is passed through these through-holes 85. The wind speed hitting 53 can be made substantially uniform, the contact efficiency between the air and the electrolyzed water in the gas-liquid contact member 53 can be improved, and the virus floating in the air can be inactivated efficiently. .

  Moreover, according to this embodiment, since the gas-liquid contact member 53 and the wind direction board 84 are provided inclining substantially in parallel, the residence time of the electrolyzed water flowing down the gas-liquid contact member 53 can be ensured. In addition, the air velocity of the air flowing through the gap 86 between the gas-liquid contact member 53 and the wind direction plate 84 can be kept substantially constant, and the contact efficiency between the air and the electrolyzed water in the gas-liquid contact member 53 can be improved. it can. Further, the electrolyzed water flows down from the upper part of the gas-liquid contact member 53 toward the lower part, and the blower fan 31 blows the gap 86 from the lower part of the gas-liquid contact member 53 toward the upper part. The electrolyzed water that flows down from the upper part to the lower part and the air that flows from the lower part to the upper part of the gas-liquid contact member 53 can be made to counter flow, and their contact time, that is, the gas-liquid contact member It becomes possible to maintain the processing time by the electrolyzed water of the air supplied to 53 long.

  Moreover, according to this embodiment, the water receiving tray 42 which receives the water which flows down from the gas-liquid contact member 53 is provided, the water collect | recovered in this water receiving tray 42 is electrolyzed in the electrolytic vessel 46, and gas liquid again Since it supplies to the contact member 53, it becomes possible to reuse electrolyzed water and it becomes unnecessary to discard the electrolyzed water used for the process of to-be-processed air. Thereby, maintenance workability | operativity can be improved. In addition, since the electrolyzed water is subjected to electrolytic treatment again, it can always maintain a clean state, and can realize continuous effective cleaning treatment of the air to be treated, and less by repeatedly performing electrolysis. Electrolyzed water containing active oxygen species at a predetermined concentration can be generated with electric power.

As described above, the present invention has been described based on the embodiment. However, the above embodiment shows a specific application example, and the present invention is not limited to this. For example, in the above embodiment, the through hole 85 formed in the wind direction plate 84 is a round hole. However, if the opening area is gradually reduced from the upstream side to the downstream side, the through hole 85 is a square hole. Alternatively, it may be a slit-shaped opening.
Further, in the present embodiment, the base 83 that holds the gas-liquid contact member 53 is formed as a plate-like member, and the base 83 is disposed on the water receiving tray 42. However, the base and the water receiving tray are integrally formed. Of course, you may do.

In the present embodiment, the configuration using hypochlorous acid as the active oxygen species has been described. However, for example, ozone (O ₃ ) or hydrogen peroxide (H ₂ O ₂ ) may be generated as the active oxygen species. good. In this configuration, electrolyzed water containing active oxygen species can be generated even from water with low chloride ions such as city water.

DESCRIPTION OF SYMBOLS 1 Air sanitizer 1A Space 11 Case 12 Suction grill (suction inlet)
13 Air outlet 15 Air inlet 31 Blower fan 42 Water pan (drain pan)
44 Circulating pump 46 Electrolytic tank (electrolyzed water generating means)
53 Gas-liquid contact member 71 Electrolyzed water supply pipe (electrolyzed water supply means)
71A Watering part 83 Base body 84 Wind direction board (wind direction member)
85 Through hole (opening)
86 Clearance

Claims (6)

  An electrolyzed water generating means disposed in a housing and electrolyzing water to generate electrolyzed water containing active oxygen species, and disposed in a non-ventilated base in the housing, and the active oxygen species A gas-liquid contact member formed of a material less reactive to the gas, an electrolyzed water supply means for supplying the electrolyzed water above the gas-liquid contact member, and a blower fan for blowing air to the gas-liquid contact member And a suction port provided below the housing, and an air outlet provided above the suction port, and has an opening with a gap in the gas-liquid contact member held by the base A wind direction member is arranged oppositely, the air sucked from the suction port is sent toward the wind direction member, and the air flowing into the gap through the opening is brought into contact with the electrolyzed water flowing down on the gas-liquid contact member. An air sterilizer characterized by that.   Electrolyzed water generating means for electrolyzing water to generate electrolyzed water containing active oxygen species, a gas-liquid contact member that is held by a non-ventilated base and supplied with the electrolyzed water, and the gas-liquid contact member An air blowing member that blows air to the gas-liquid contact member held by the base body, and a wind direction member having an opening is provided opposite to the air-liquid contact member. The air sterilization apparatus is characterized in that the air flowing into the gap and flowing into the gap through the opening is brought into contact with the electrolyzed water on the gas-liquid contact member.   The air sterilizer according to claim 1 or 2, wherein the opening formed in the airflow direction member has an opening area that is gradually reduced from the air upstream side toward the downstream side.   The gas-liquid contact member and the airflow direction member are provided so as to be inclined substantially in parallel, and the electrolyzed water flows down from the upper part to the lower part of the gas-liquid contact member held by the base, The air sterilizer according to any one of claims 1 to 3, wherein the gap is blown from the lower part to the upper part of the gas-liquid contact member.   A drain pan that receives water flowing down from the gas-liquid contact member is provided, and the water collected by the drain pan is electrolyzed by the electrolyzed water generating means and supplied again to the gas-liquid contact member. Item 5. The air sterilizer according to any one of Items 1 to 4.   6. The gas-liquid contact member is formed of any one of glass, ceramic, stainless steel, fluororesin, vinyl chloride resin, and epoxy resin, or a combination thereof. The air disinfection device described in 1.