JP2008109984A - Air disinfection apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air disinfection apparatus capable of reducing the labor of maintaining respective apparatuses disposed inside a housing. <P>SOLUTION: The inside of the housing 11 is sectioned into upper and lower parts by a support plate 21; an electrolytic water generation unit for generating electrolytic water by electrolyzing water and a gas-liquid contact member to which the electrolytic water is to be supplied are disposed in a chamber 22 on the upper side; a discharge water tank 57 for receiving water discharged from the electrolytic water generation unit, a blowing fan 31 for sending air sucked into the housing 11 through a suction port 15 to the gas-liquid contact member 53 and a pre-filter 34 between the blowing fan 31 and the suction port 15 are disposed in a chamber 23 on the lower side, and a freely detachable lower side cover member 19 is disposed to the front surface of the housing 11 facing the pre-filter 34 and the discharge water tank 57. <P>COPYRIGHT: (C)2008,JPO&INPIT

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, a sterilization apparatus has been proposed in which water is electrolyzed by applying a voltage to an electrode to produce electrolyzed water, and viruses etc. floating in the air are removed using this electrolyzed water (for example, , See Patent Document 1). This sterilization device removes air by supplying electrolyzed water to a humidifying element made of non-woven fabric, etc., and bringing virus in the air into contact with the electrolyzed water on the humidifying element, thereby inactivating the virus. It is something that tries to be fungus.
JP 2002-181358 A

By the way, in this type of sterilization apparatus, a maintenance frequency is low, such as a humidifying element (gas-liquid contact member) or an electrolyzed water generating unit that generates electrolyzed water, inside the casing, Like the pre-filter that removes dust and the like in the intake air and the drainage tank in which the water discharged from the electrolyzed water generation unit accumulates, it is often mixed with equipment that is frequently maintained and mainly maintained by the user. ing.
For this reason, in the conventional configuration, for example, when the user performs maintenance, the maintenance target devices (for example, the prefilter and the drainage tank) are scattered in the casing, so that the maintenance labor is large. There is a problem of becoming.
Therefore, an object of the present invention is to provide an air sterilization apparatus that can reduce labor for maintenance of each device arranged in a housing.

In order to solve the above-mentioned problems, the present invention divides the inside of a housing into upper and lower portions by a support plate, and electrolyzes water into an upper chamber to generate electrolyzed water, and the electrolyzed water is supplied. A gas-liquid contact member is disposed, and a drain tank receiving water discharged from the electrolyzed water generation unit in a lower chamber and air sucked into the housing through the suction port are sent to the gas-liquid contact member A pre-filter is disposed between the blower fan, the blower fan and the suction port, and a removable cover member is disposed on one side of the casing facing the pre-filter and the drainage tank. To do.
According to this configuration, since the prefilter and the drainage tank are exposed when the cover member is removed, the prefilter and the drainage tank can be easily accessed, and the water accumulated in the drainage tank can be cleaned. Maintenance such as removal can be easily performed.

  In this case, the drain tank may be arranged so as to be able to be pulled out to one side of the casing, and the prefilter may be detachably arranged from the one side. The cover member may include an upper cover member and a lower cover member that allow the upper chamber and the lower chamber to be opened and closed separately.

  Further, the lower cover member includes a lower hook formed at a lower portion of the lower cover member and an upper hook formed at an upper portion, and the housing includes a hooking groove portion for hooking the lower hook, A latch part for latching the upper hook, and the upper hook is latched to the latch part in a state where the lower hook is hooked on the hooking groove part, whereby the lower cover member is secured to the housing. It is good also as a structure attached to a body. Moreover, it is good also as a structure by which the said suction inlet is formed in the lower end part of the said lower side cover member.

  According to the present invention, the inside of the housing is divided into upper and lower portions by the support plate, the electrolyzed water generating unit that electrolyzes water in the upper chamber to generate electrolyzed water, and the gas-liquid contact member to which the electrolyzed water is supplied, A drainage tank that receives water discharged from the electrolyzed water generation unit in a lower chamber, a blower fan that sends air sucked into the housing through a suction port to the gas-liquid contact member, and Since a prefilter is disposed between the blower fan and the suction port, and a detachable cover member is disposed on one side of the casing facing the prefilter and the drainage tank, the prefilter is removed when the cover member is removed. Since the pre-filter and the drain tank are exposed to the outside, the pre-filter and the drain tank can be easily accessed, and maintenance such as cleaning the pre-filter and removing the water accumulated in the drain tank is possible. It is possible to perform Nsu easily.

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.
As shown in FIG. 1, the air sterilization apparatus 1 has a box-shaped housing 11 formed in a vertically long shape, and is installed on the floor, for example. A suction grill 12 is formed in the lower portion of both side surfaces of the casing 11, and a suction port 15 is formed in the lower end portion of the front surface of the casing 11.
An air outlet 13 is formed on the upper surface of the housing 11, and the air outlet 13 is provided with a louver 20 for changing the direction in which air is blown out. The louver 20 is configured to close the outlet 13 when operation is stopped.
The air sterilizer 1 sucks and sterilizes the air in the installation room through the suction grill 12 and the suction port 15, and exhausts the sterilized air from the air outlet 13 to clean the room air. Device.

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, the operation panel 16 (FIG. 2) for performing various operations of the air sterilization apparatus 1 is exposed, and when the tank opening / closing lid 14A is opened, a water supply tank 41 (to be described later) via the tank outlet 14 ( Figure 2) 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, an upper cover member 18 and a lower cover member 19 arranged in the vertical direction are detachably arranged on the front surface (one side surface) of the housing 11, respectively. The upper cover member 18 and the lower cover member When 19 is removed, the internal structure of the housing 11 is exposed. The lower cover member 19 includes an arc portion 19A that is curved toward the back side of the housing 11 at the lower end of the lower cover member 19, and the suction port 15 is formed in the arc portion 19A. Yes.

Next, the internal structure of the air sterilizer 1 will be described.
As shown in FIG. 2, the housing 11 is provided with a support plate 21 that divides the interior of the housing 11 into upper and lower portions, 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 prefilter 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 such as dust in the air sucked through the suction grill 12 and the suction port 15, and passes through the first filter 25, for example, a particle size of 10 (Μm) and a second filter 26 that collects the above objects. Pollen and dust floating in the air are removed by the prefilter 34, and the removed air is supplied to the upper chamber 22 via the blower fan 31.

  On the other hand, in the upper chamber 22, an electrical box 39 is disposed above the blower fan 31 and the fan motor 32, and a gas-liquid contact member 53 is disposed above the electrical box 39. Between the gas-liquid contact member 53 and the electrical equipment box 39, a water tray 42 for receiving water dripped from the gas-liquid contact member 53 is disposed. The water receiving tray 42 includes a storage portion 42 </ b> A formed at a deep bottom, and the storage portion 42 </ b> A extends above the drainage tank 57. In the electrical box 39, various electrical components such as a control board on which various devices constituting a control unit (not shown) for controlling the air sterilizer 1 are mounted, and a power supply circuit for supplying a power supply voltage to the fan motor 32 are provided. Contained.

A water supply tank 41 is disposed on the storage part 42A, and water can be supplied from the water supply tank 41 to the storage part 42A. Specifically, the water supply port formed at the lower end of the water supply tank 41 is provided with a float valve. When the water level of the storage portion 42A is lower than the water supply port, the float valve is opened, whereby the water supply tank 41 is opened. Thus, a necessary amount of water is supplied, and the water level of the reservoir 42A is kept constant.
Moreover, as shown in FIG. 3, the electrolyzed water production | generation unit 45 which produces | generates the electrolyzed water supplied to the gas-liquid contact member 53 is arrange | positioned on the storage part 42A. The electrolyzed water generation unit 45 includes a circulation pump 44 and an electrolyzer 46, and the circulation pump 44 operates so that the circulation amount can be changed by changing the number of rotations according to the control of the control unit. A supply pipe 71 is connected to the discharge port of the circulation pump 44 to pump up water stored in the storage portion 42 </ b> A and supply it to the gas-liquid contact member 53. The supply pipe 71 is connected to the circulation pump 44 and the gas-liquid contact member 53. The electrolytic cell 46 is connected through a branch pipe 72 that branches between the two. As will be described later, the electrolytic bath 46 includes a plurality of electrodes, and a voltage supplied from the control unit is applied between the electrodes to electrolyze water to generate electrolyzed water. A discharge port 46A for discharging the electrolyzed water generated in the electrolyzer 46 is formed on the upper surface of the electrolyzer 46, and a return pipe 73 for returning the electrolyzed water to the storage part 42A is connected to the discharge port 46A. .

In addition, a filter member 74 that collects solid matter mixed in the water flowing into the storage section 42A is disposed on the storage section 42A at the inlet portion of the storage section 42A. In this configuration, the outlet of the return pipe 73 is disposed above the filter member 74 and can collect solid matter (for example, a scale component formed on the electrode surface) discharged from the electrolytic cell 46 together with water. It has become. The filter member 74 collects the solid matter contained in the water circulated through the gas-liquid contact member 53 and the electrolyzed water generating unit 45 via the water receiving tray 42, so that the solid matter is collected in the gas-liquid contact member 53. The gas-liquid contact member 53 is prevented from being clogged.
Moreover, since the filter member 74 is formed in the storage part 42A of the water receiving tray 42 with the upper part opened, it is possible to easily determine the replacement time of the filter member 74 visually. Further, when the filter member 74 is replaced, the filter member 74 disposed at the inlet portion of the storage portion 42A may be removed and replaced with fingers, so that maintenance can be easily performed without using a tool or the like. it can.

  Moreover, in this embodiment, it is comprised so that the water stored in the water receiving tray 42 can be discharged | emitted suitably. Specifically, a drain pipe 55 (FIG. 5A) is connected to the lower portion of the storage portion 42A, and a drain valve 56 (FIG. 5A) for opening and closing the drain pipe 55 is provided. The tip of the drain pipe 55 extends above the drain tank 57, and the water on the water receiving tray 42 is discharged to the drain tank 57 by opening the drain valve 56.

On the upper part of the gas-liquid contact member 53, a watering box 51 for assembling electrolyzed water uniformly on the gas-liquid contact member 53 is assembled. The watering box 51 includes a tray member that temporarily stores electrolyzed water. A plurality of watering holes (not shown) are opened on the side surface of the tray member, and the gas-liquid contact member 53 is electrolyzed through the watering holes. Water is dripped.
The gas-liquid contact member 53 is a filter member having a honeycomb structure. Specifically, the gas-liquid contact member 53 has a structure in which an element portion that contacts gas is supported by a frame. The element portion is configured by laminating a corrugated plate member and a flat plate member, and a plurality of substantially triangular openings are formed between the corrugated member and the flat plate member. Accordingly, a wide gas contact area is ensured when air is passed through the element portion, electrolyzed water can be dripped, and clogging is difficult.

In addition, a diversion sheet (not shown) is disposed on the upper surface of the gas-liquid contact member 53 in order to efficiently disperse the electrolyzed water dropped from the watering box 51 in the element portion. The diversion sheet is a sheet (woven fabric, non-woven fabric, or the like) made of a fiber material having liquid permeability, and one or more are provided along the cross section in the thickness direction of the gas-liquid contact member 53.
Here, each part (including the frame, the element part, and the flow dividing sheet) of the gas-liquid contact member 53 is made of a material that is hardly deteriorated by electrolyzed water, such as polyolefin resin (polyethylene resin, polypropylene resin, etc.), PET (polyethylene). -Materials such as terephthalate) resin, vinyl chloride resin, fluorine resin (PTFE, PFA, ETFE, etc.) or ceramic material are used. In this configuration, PET resin is used.
Further, each part of the gas-liquid contact member 53 is subjected to a hydrophilic treatment to enhance the affinity for the electrolyzed water, whereby the water retention (wetability) of the electrolyzed water of the gas-liquid contact member 53 is maintained. The contact between the active oxygen species (active oxygen substance) described later and the room air is maintained for a long time. Furthermore, since electrolyzed water having fungicidal action is dripped onto the gas-liquid contact member 53, it is possible to propagate the mold without taking anti-fungal measures (such as application of fungicides) on the gas-liquid contact member 53. Can be avoided.

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. 4, the blower fan 31 </ b> A is provided upward in the rear side portion of the housing 11, and the support plate 21 is provided with an opening at a position overlapping the blower opening 31 </ b> A. The opening of the support plate 21 communicates with a space 1 </ b> A that extends vertically on the back side of the upper chamber 22. For this reason, the air blown out from the blower opening 31A of the blower fan 31 passes through the space 1A as shown by an arrow in FIG. 4 and is blown to the back surface of the gas-liquid contact member 53.
In this configuration, the space 1 </ b> A includes a first air guide member 81 disposed on the back side of the housing 11. On the upper part of the first air guide member 81, a flow dividing plate 82 is disposed, and the air flowing through the space 1A can be uniformly blown to the back surface of the gas-liquid contact member 53.
In addition, a second air guide member 83 that guides the air that has passed through the gas-liquid contact member 53 to the air outlet 13 is disposed in the space 1 </ b> B on the front surface side of the housing 11 via the gas-liquid contact member 53. . The second air guide member 83 has a function of guiding the air in the space 1B to the outlet 13 and a function of receiving water (so-called flying water) blown into the space 1B from the gas-liquid contact member 53 together with the air. . Specifically, the second air guide member 83 has a bottom surface 83A inside the second air guide member 83 formed in a downward slope toward the gas-liquid contact member 53, and the tip of the bottom surface 83A is water. It extends above the saucer 42. For this reason, the water blown into the space 1 </ b> B is returned to the water receiving tray 42 through the bottom surface 83 </ b> A inside the second air guide member 83.
The air that has passed through the gas-liquid contact member 53 is exhausted through the air outlet filter 36 that is guided to the second air guide member 83 and disposed below the air outlet 13. The air outlet filter 36 is a filter for preventing entry of foreign matter from the air outlet 13 into the housing 11. The blower outlet filter 36 includes a net, a woven fabric, a nonwoven fabric, or the like (not shown). As these materials, a synthetic resin, preferably a material constituting the gas-liquid contact member 53 is preferable. Moreover, it is preferable that the blower outlet filter 36 is a moderately coarse thing so that the ventilation resistance of the air which passed the gas-liquid contact member 53 may not increase remarkably.

FIG. 5 is a diagram for explaining the state of supply of electrolyzed water, FIG. 5 (A) is a schematic diagram showing the configuration of the air sterilization mechanism, and FIG. 5 (B) shows the configuration of the electrolytic cell 46 in detail. FIG.
With reference to this FIG. 5, the supply of the electrolyzed water with respect to the gas-liquid contact member 53 is demonstrated. In the present embodiment, a case where tap water is put into the water supply tank 41 and the air sterilizer 1 is operated will be described.

  When the water supply tank 41 containing the tap water is set in the air sterilizer 1, the tap water is supplied from the water supply tank 41 to the water tray 42 as described above, and the water level of the water tray 42 reaches a predetermined level. . The water in the water receiving tray 42 is pumped up by the circulation pump 44 and a part thereof is supplied to the electrolytic cell 46. As shown in FIG. 5B, the electrolytic cell 46 includes a pair of electrodes 47 and 48, one of which is positive and the other is negative. By applying a voltage between these electrodes 47 and 48, The flowing tap water is electrolyzed to generate electrolyzed water containing active oxygen species. Here, the active oxygen species are oxygen having higher oxidation activity than normal oxygen and related substances, such as superoxide anion, singlet oxygen, hydroxyl radical, or hydrogen peroxide, in a narrow sense. The active oxygen includes so-called broad active oxygen such as ozone and hypohalous acid.

The electrodes 47 and 48 are, for example, electrode plates in which the base is made of titanium (Ti) and the coating layer is made of iridium (Ir) and platinum (Pt). It is set to be in the range of mA (milliampere) / cm ² (square centimeter) to several tens of mA / cm ² to generate a predetermined free residual chlorine concentration (for example, 1 mg (milligram) / l (liter)).

Specifically, when the tap water is energized by the electrodes 47 and 48, the cathode electrode
4H ⁺ + 4e ⁻ + (4OH ⁻ ) → 2H ₂ + (4OH ⁻ )
And the anode electrode
2H ₂ O → 4H ⁺ + O ₂ + 4e ⁻
As soon as the reaction of
Chloride ion contained in water (Cl ^-: those previously added in tap water),
2Cl ⁻ → Cl ₂ + 2e ⁻
As a result, chlorine (Cl ₂ ) is generated. Furthermore, this chlorine reacts with water,
Cl ₂ + H ₂ O → HClO + HCl
Hypochlorous acid (HClO) and hydrogen chloride (HCl) are generated.

  Hypochlorous acid generated at the anode electrode is contained in a broad sense of active oxygen species and has a strong oxidizing action and bleaching action. The aqueous solution in which hypochlorous acid is dissolved, that is, the electrolyzed water generated by the air sterilizer 1 exhibits various air cleaning effects such as inactivation of viruses, sterilization, and decomposition of organic compounds. Thus, when electrolyzed water containing hypochlorous acid is dropped from the water spray box 51 onto the gas-liquid contact member 53, the air blown out by the blower fan 31 comes into contact with hypochlorous acid at the gas-liquid contact member 53. . As a result, viruses or the like floating in the air are inactivated, and odorous substances contained in the air react with hypochlorous acid to be decomposed or ionized and dissolved. Accordingly, the air is sterilized and deodorized, and the purified air is discharged from the gas-liquid contact member 53.

  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 when this air sterilization apparatus 1 is installed in a so-called large space such as a kindergarten, elementary / middle / high school, a nursing care insurance facility, a hospital, etc., it is cleaned with sterilized water (disinfection, deodorization). Etc.) can be spread widely in the large space, and air sterilization and deodorization in the large space can be performed efficiently.

  In addition, the electrolyzed water dropped from the water spray box 51 to the gas-liquid contact member 53 moves downward through the gas-liquid contact member 53 and falls to the water tray 42. The electrolyzed water that has fallen in the water receiving tray 42 is again pumped up by the circulation pump 44 and supplied to the gas-liquid contact member 53 through the electrolytic bath 46. Thus, in the structure in this embodiment, water becomes a circulation type, and air can be sterilized efficiently for a long time by effectively using a small amount of water. Further, when the amount of water circulating through the electrolyzed water circulation unit 2 is reduced due to evaporation or the like, an appropriate amount of water in the water supply tank 41 is supplied to the water receiving tray 42.

Incidentally, in the air sterilization apparatus 1 according to the present embodiment, as described above, the upper cover member 18 and the lower cover member 19 are detachably disposed on the front surface of the housing 11. As shown in FIG. 6, the lower cover member 19 includes a lower hook 84 formed on the lower end portion (arc portion 19 </ b> A) of the lower cover member 19 and an upper hook 85 formed on the upper end portion. The lower hook 84 is a claw member extending in a direction substantially parallel to the panel surface 19B of the lower cover member 19, and is a hooking groove portion 92 (see FIG. ) To be engaged.
Further, the upper hook 85 is a protrusion that extends in a direction substantially perpendicular to the panel surface 19B of the lower cover member 19, and the distal end portion 85A is formed with a diameter larger than that of the base portion 85B. When the lower cover member 19 is attached to the housing 11, a latch portion 93 to which the upper hook 85 is locked is formed on the front side of the both side plates 91 of the housing 11 at a position corresponding to the upper hook 85. ing.
The latch portion 93 includes a base portion 93A that moves in the depth direction of the housing 11, and a claw portion 93B that is hinged to the top and bottom of the base portion 93A. These claw parts 93B open and close according to the position of the base part 93A. When the distal end portion 85A of the upper hook 85 comes into contact with the surface of the base portion 93A and the base portion 93A is pushed in the depth direction of the housing 11, the claw portion 93B is closed along with the movement of the base portion 93A. Once the base portion 93A is pushed in the depth direction, the base portion 93A is held at the pushed-in position (not shown), so that the lower cover member 19 can be easily closed by holding the distal end portion 85A with the claw portion 93B. Can do.
On the other hand, when the base portion 93A of the latch portion 93 is pushed in again through the upper hook 85, the holding of the base portion 93A is released and the base portion 93A returns to the initial position (FIG. 6). Accordingly, when the claw portion 93B is opened, the tip end portion 85A of the upper hook 85 is detached from the claw portion 93B, so that the lower cover member 19 can be easily opened. Thus, the lower cover member 19 can be easily attached to and detached from the housing 11 without using a tool or the like.
The upper cover member 18 has the same configuration as that of the lower cover member 19 described above, and thus the description thereof is omitted.

FIG. 7 is a perspective view showing a state where the lower cover member 19 is opened (removed), and FIG. 8 is a perspective view showing a state where the upper cover member 18 is opened (removed).
In the present embodiment, as described above, the pre-filter 34 and the drain tank 57 as maintenance targets are disposed in the lower chamber 23 of the casing 11, and the lower position is opposed to the pre-filter 34 and the drain tank 57. A side cover member 19 is disposed. According to this configuration, the pre-filter 34 and the drain tank 57 are exposed by removing the lower cover member 19. Here, since the drainage tank 57 is accommodated in the front side so that it can be pulled out, the drainage tank 57 can be easily pulled out to the front side of the housing 11 with the handle 57A of the drainage tank 57. It is possible to throw away the water accumulated in the water.
Further, as shown in FIG. 7, the prefilter 34 is disposed by being fitted into a frame portion 94 formed by the partition plate 24, the support plate 21, and the like, and a fastening member 95 formed on the frame portion 94. Is fixed to the frame portion 94. When the fastening member 95 is rotated, the prefilter 34 is detached from the frame portion 94, so that the prefilter 34 can be easily removed to the front side of the housing 11, and dust adhering to the prefilter 34 is removed. Can be removed by cleaning.
When the upper cover member 18 is opened, the gas-liquid contact member 53 is covered with the second air guide member 82 and is not exposed to the outside as shown in FIG. For this reason, even when the user accidentally removes the upper cover member 18, the user is prevented from touching the gas-liquid contact member 53.

  According to this embodiment, the inside of the housing 11 is divided into upper and lower portions by the support plate 21, and the electrolyzed water generating unit 45 that electrolyzes water into the upper chamber 22 to generate electrolyzed water, and the electrolyzed water are supplied. The gas-liquid contact member 53 is disposed, and the lower chamber 23 receives the water discharged from the electrolyzed water generating unit 45 and the air sucked into the housing 11 through the suction port 15. A blower fan 31 to be sent to the gas-liquid contact member 53, and a prefilter 34 is disposed between the blower fan 31 and the suction port 15, and is attached to and detached from the front surface of the housing 11 facing the prefilter 34 and the drainage tank 57. Since the lower cover member 19 is arranged freely, the prefilter 34 and the drain tank 57 are exposed when the lower cover member 19 is removed, so that the prefilter 34 and the drain tank 57 can be easily accessed. It can be. Accordingly, maintenance such as cleaning of the prefilter 34 and removal of water accumulated in the drainage tank 57 can be easily performed.

In addition, according to the present embodiment, the drain tank 57 is disposed so as to be able to be pulled out to the front side of the casing 11, and the prefilter 34 is detachably disposed from the front side of the casing 11. Maintenance of the pre-filter 34 and the drainage tank 57 can be easily performed from the front side of the housing 11 with the cover member 19 removed.
According to the present embodiment, the upper cover member 18 and the lower cover member 19 arranged one above the other are arranged on the front surface of the housing 11, and the upper cover member 18 and the lower cover member 19 are arranged in the housing. Since the upper chamber 22 and the lower chamber 23 formed inside the body 11 can be opened and closed separately, maintenance of equipment (for example, the gas-liquid contact member 53) disposed in the upper chamber 22 is possible. If only the upper cover member 18 is opened and maintenance is performed on equipment (for example, the prefilter 34 or the drainage tank 57) disposed in the lower chamber 23, only the lower cover member 19 is opened. good. Accordingly, since the area of the cover member to be removed is small compared to the case where one cover member is arranged on the front surface of the housing, the space for placing the cover member is also reduced, and the maintenance space can be used effectively. it can.

  Further, according to the present embodiment, the lower cover member 19 includes the lower hook 84 formed at the lower portion of the lower cover member 19 and the upper hook 85 formed at the upper portion. A hooking groove portion 92 for hooking the lower hook 84 on the front side of the side plate 91 of the housing 11 and a latch portion 93 for locking the upper hook 85 are provided, and the lower hook 84 is hooked on the hooking groove portion 92. Since the lower cover member 19 is attached to the housing 11 by engaging the upper hook 85 with the latch portion 93, the lower cover member 19 is attached to the housing 11 without using a tool or the like. Easy to attach and detach.

  Further, according to the present embodiment, the lower end portion of the lower cover member 19 includes the arc portion 19A curved toward the back side of the housing 11, and the suction port 15 is formed in the arc portion 19A. Since the suction port 15 is not visually recognized from the front, the air sterilization apparatus 1 can be improved in appearance, and the suction port 15 can secure a sufficient opening area.

The air sterilization apparatus 1 according to the present embodiment is an aspect of the present invention, and it is needless to say that the air sterilization apparatus 1 can be appropriately changed without departing from the spirit of the present invention.
For example, ozone (O ₃ ) or hydrogen peroxide (H ₂ O ₂ ) may be generated as the active oxygen species. In this case, when a platinum tantalum electrode is used as the electrode, active oxygen species can be stably generated with high efficiency by electrolysis even if the ion species is dilute water.
At this time, in the anode electrode,
2H ₂ O → 4H ⁺ + O ₂ + 4e ⁻
At the same time as
3H ₂ O → O ₃ + 6H ⁺ + 6e ⁻
2H ₂ O → O ₃ + 4H ⁺ + 4e ⁻
This reaction occurs and ozone (O ₃ ) is generated. In the cathode electrode,
4H ⁺ + 4e ⁻ + (4OH ⁻ ) → 2H ₂ + (4OH ⁻ )
O ₂ ⁻ + e ⁻ + 2H ⁺ → H ₂ O ₂
Thus, O ₂ ⁻ produced by the electrode reaction and H ⁺ in the solution are combined to produce hydrogen peroxide (H ₂ O ₂ ).

Moreover, in this embodiment, the example which supplies tap water with the water supply tank 41 is demonstrated. Since a chlorine compound is added to tap water for the purpose of sterilization, it contains chloride ions, and these chloride ions react to produce hypochlorous acid and hydrochloric acid. This is not limited to the case where tap water is used. If the water supplied to the electrolytic cell 46 is water containing halide ions due to the addition or mixing of a halogen compound, the same reaction is performed to generate halogen. A reactive oxygen species containing is generated.
Further, in the air sterilization apparatus 1, the same reaction can be caused when water with a dilute ionic species (including pure water, purified water, well water, some tap water, etc.) is used. That is, if a halogen compound (salt, etc.) is added to water with dilute ionic species, a similar reaction occurs, and active oxygen species can be obtained. Moreover, in this embodiment, although it was set as the water supply system by the water tank 41 which can be taken in and out freely, it is good also as a water pipe water supply system which connects a water pipe and guides city water directly instead of this water tank 41, for example. Needless to say.

It is a perspective view which shows the external appearance of the air sanitization apparatus which concerns on this Embodiment. It is a perspective view which shows the internal structure of an air sanitizer. It is a perspective view which shows a gas-liquid contact member and an electrolyzed water production | generation unit. It is a right side sectional view showing the internal configuration of the air sterilizer. It is a figure explaining the mode of supply of electrolysis water, (A) is a mimetic diagram showing the composition of an air sanitization mechanism, and (B) is a figure showing the composition of an electrolysis tank in detail. It is a figure for demonstrating the mechanism which attaches or detaches an upper cover member and a lower cover member. It is a perspective view which shows the state which removed the lower side cover member. It is a perspective view which shows the state which removed the upper cover member.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air sanitizer 11 Case 15 Suction port 18 Upper cover member (cover member)
19 Lower cover member (cover member)
DESCRIPTION OF SYMBOLS 21 Support plate 22 Upper chamber 23 Lower chamber 31 Blower fan 34 Pre filter 42 Water tray 42A Reservoir 44 Circulating pump 45 Electrolyzed water generation unit 46 Electrolyzer 53 Gas-liquid contact member 57 Drain tank 84 Lower hook 85 Upper hook 92 Hook groove 93 Latch part

Claims (5)

  The housing is divided into upper and lower portions by a support plate, and an electrolyzed water generating unit that electrolyzes water to generate electrolyzed water in the upper chamber and a gas-liquid contact member to which the electrolyzed water is supplied are arranged on the lower side. A drainage tank that receives water discharged from the electrolyzed water generation unit in the chamber, a blower fan that sends the air sucked into the housing through the suction port to the gas-liquid contact member, the blower fan and the suction port A pre-filter is disposed between the two and a detachable cover member is disposed on one side of the casing facing the pre-filter and the drain tank.   2. The air sterilization according to claim 1, wherein the drain tank is detachably disposed on one side of the housing, and the prefilter is detachably disposed on the one side. apparatus.   The air disinfection according to claim 1 or 2, wherein the cover member includes an upper cover member and a lower cover member that allow the upper chamber and the lower chamber to be opened and closed separately. apparatus.   The lower cover member includes a lower hook formed at a lower portion of the lower cover member and an upper hook formed at an upper portion, and the housing includes a hook groove portion for hooking the lower hook, and the upper hook member. A latch portion that latches the hook, and the lower hook member is latched to the housing by latching the upper hook to the latch portion in a state where the lower hook is hooked on the hooking groove portion. The air disinfection device according to claim 3, wherein the device is attached.   The air sterilizer according to claim 3 or 4, wherein the suction port is formed in a lower end portion of the lower cover member.

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