JP2023143658A - Space purifier - Google Patents

Abstract

To provide a technology that improves a hypochlorite gas concentration contained in an air bubble in a space purifier according to a bubbling method.SOLUTION: A space purifier 2 is provided with a storage section 5 that stores a hypochlorite aqueous solution 6 and an air supply portion 7 that is provided by immersing in the hypochlorite aqueous solution 6 and discharges air 3a taken in from the outside (private room space 1) as an air bubble 8 in the hypochlorite aqueous solution 6. The air supply section 7 discharges air bubble into the hypochlorite aqueous solution 6 stored by the storage portion 5 while mixing the hypochlorite aqueous solution 6 taken into the interior from the storage section 5 with the air 3a taken in from the outside (private room space 1).SELECTED DRAWING: Figure 2

Description

The present invention relates to a space purification device used for disinfecting a private room space.

Traditionally, devices have been used to sterilize living spaces and reduce the risk of infectious diseases by bubbling air into an aqueous solution containing hypochlorous acid (e.g., hypochlorous acid water) to generate bubbles that float to the surface. BACKGROUND ART An air conditioner (space purification device) that releases hypochlorous acid gas contained in bubbles into a target space together with air is known (for example, see Patent Document 1).

Japanese Patent Application Publication No. 2005-305100

However, in conventional space purification devices using the bubbling method, gas containing sterilizing components is taken into the bubbles as they rise toward the liquid surface due to buoyancy. If sufficient gas-liquid contact time cannot be secured, there is a problem in that it is difficult to secure the necessary sterilization component gas concentration.

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned conventional problems, and aims to provide a technology for improving the concentration of a sterilizing component gas contained in bubbles in a space purification device using a bubbling method.

In order to achieve this objective, the space purification device according to the present invention includes a storage part that stores an aqueous solution containing a sterilizing component, and a storage section that stores air taken in from the outside as bubbles and releases it into the aqueous solution containing a sterilizing component. An air supply section. The air supply section mixes an aqueous solution containing a sterilizing component taken into the interior from the storage section through a solution suction port immersed in the storage section with air taken in from the outside, and the sterilization that the storage section stores. When releasing air bubbles into an aqueous solution containing components, the air bubbles are caused to flow in a direction away from the area where the solution suction port is arranged in the storage part, thereby achieving the intended purpose.

According to the present invention, in the space purification device using the bubbling method, it is possible to improve the concentration of the sterilizing component gas contained in the bubbles.

FIG. 1 is a schematic side view showing an example of installing a space purification device in a private room space according to Embodiment 1 of the present invention. FIG. 2 is a schematic side view showing the configuration of the space purification device. FIG. 3 is a schematic transparent front view showing the configuration of the space purification device. FIG. 4 is a schematic side view showing the configuration of a space purification device according to Embodiment 2 of the present invention. FIG. 5 is a schematic side view showing the configuration of a space purification device according to Embodiment 3 of the present invention. FIG. 6 is a schematic transparent front view showing the configuration of the space purification device.

The space purification device according to the present invention includes a storage part that stores an aqueous solution containing a sterilizing component, and is provided by being immersed in the aqueous solution containing a sterilizing component, and air taken in from the outside is used as bubbles in the aqueous solution containing the sterilizing component. and an air supply section for discharging air to the air. The air supply section mixes the aqueous solution containing the sterilizing component taken into the interior from the storage section with the air taken in from the outside, and releases air bubbles into the aqueous solution containing the sterilizing component stored in the storage section.

According to this configuration, in the process of mixing an aqueous solution containing a sterilizing component with air inside the air supply section, a certain amount of sterilizing component gas can be included in the air. This allows the bubbles to contain the sterilizing component gas that is taken in inside the air supply section and the sterilizing component gas that is taken into the bubbles during the process of the bubbles floating in the aqueous solution containing the sterilizing component. can. As a result, when the bubbles reach the liquid surface, the concentration of the sterilizing component gas released from the bubbles can be increased. In other words, the space purification device can improve the concentration of the sterilizing component gas contained in the bubbles, and can supply a higher concentration of the sterilizing component gas to the outside.

Furthermore, in the space purification device according to the present invention, the air supply section includes a solution suction port that takes an aqueous solution containing a sterilizing component into the inside from the storage section, an air suction port that takes air into the inside from the outside, and a solution suction port that takes air from the outside into the inside. It is preferable to include a discharge part that discharges a mixed state of the aqueous solution containing the taken-in sterilizing component and the air taken in from the air suction port, and the discharge part discharges bubbles vertically downward. As a result, the air bubbles released from the discharge part descend at least vertically downward in the aqueous solution containing the sterilizing component, and then rise to the surface of the liquid, so that the bubbles are removed from the aqueous solution containing the sterilizing component. The time it takes to circulate inside becomes longer, and the amount of sterilizing component gas taken into the bubbles further increases. As a result, when the bubbles reach the liquid surface, the concentration of the sterilizing component gas released from the bubbles can be further increased.

Further, in the space purification device according to the present invention, the storage section has a partition plate extending vertically upward from the bottom of the storage section, and the partition plate has a solution suction port arranged therein, and a solution suction port. It is preferable that the storage section is divided into a first region that takes in an aqueous solution containing a sterilizing component from the reservoir, and a second region where a discharge section is disposed and through which air bubbles released from the discharge section flow. Thereby, the air bubbles discharged from the discharge part in the second region can be prevented from being sucked into the solution suction port in the first region by the partition plate. As a result, the generation of abnormal noise caused by the aqueous solution containing the sterilizing component containing air bubbles being taken in from the solution suction port is suppressed. In other words, the space purification device can supply a higher concentration of sterilization component gas to the outside while suppressing noise.

Further, in the space purification device according to the present invention, it is preferable that the partition plate has a forward tapered shape on the second region side, and that the discharge portion discharges the bubbles so as to spray the bubbles onto the forward tapered portion. As a result, the air bubbles discharged vertically downward from the discharge part change direction along the forward tapered portion and flow approximately horizontally, so that the air bubbles flow through the aqueous solution containing the sterilizing component. The time becomes longer, and the amount of sterilizing component gas taken into the bubbles can be further increased.

Furthermore, in the space purification device according to the present invention, the air supply section further includes a flow direction adjustment plate that is provided at the tip of the discharge section and adjusts the flow direction of the air bubbles discharged vertically downward from the discharge section. It is preferable that the flow direction adjustment plate changes the flow direction of the bubbles toward a region on the opposite side of the flow direction adjustment plate from the region where the solution suction port is arranged. As a result, the air bubbles discharged from the discharge part flow in the direction of the area opposite to the area where the solution suction port is arranged by the flow direction adjusting plate, so that air bubbles are suppressed from being sucked into the solution suction port. I can do it. As a result, the generation of abnormal noise caused by the aqueous solution containing the sterilizing component containing air bubbles being taken in from the solution suction port is suppressed. In other words, the space purification device can supply a higher concentration of sterilization component gas to the outside while suppressing noise.

Further, the space purification device according to the present invention may include a sterilizing water generation unit that adjusts an aqueous solution containing a sterilizing component to a predetermined concentration. By doing so, the concentration of the aqueous solution containing the sterilizing component can be easily controlled, so that the concentration of the aqueous solution containing the sterilizing component can be stabilized. In other words, the space purification device can stably release a higher concentration of sterilizing component gas to the outside.

Embodiments of the present invention will be described below with reference to the drawings. Note that the following embodiments are examples of embodying the present invention, and do not limit the technical scope of the present invention. Furthermore, each figure described in the embodiments is a schematic diagram, and the ratio of the size and thickness of each component in each figure does not necessarily reflect the actual size ratio. .

(Embodiment 1)
First, an outline of the space purification device 2 according to the first embodiment will be explained with reference to FIGS. 1 to 3. FIG. 1 is a schematic side view showing an example of installing a space purification device 2 in a private room space 1 according to Embodiment 1 of the present invention. FIG. 2 is a schematic side view showing the configuration of the space purification device 2. As shown in FIG. FIG. 3 is a schematic transparent front view showing the configuration of the space purification device 2. As shown in FIG.

As shown in FIG. 1, the space purification device 2 is installed at a predetermined height on the wall surface of the private room space 1. The space purification device 2 takes in the air 3 in the private room space 1, adds hypochlorous acid (hypochlorous acid gas) to the taken in air 3 (air 3a shown in FIG. 2), and converts the taken in air 3 ( It is mixed with air 3b) shown in FIG. 2 and released into the private room space 1 as air 4 containing hypochlorous acid. As a result, the private room space 1 is sterilized by the released air 4 (air 4 containing hypochlorous acid). In other words, the space purification device 2 can be said to be a device that releases hypochlorous acid into the private room space 1 to sterilize it. Note that the space purification device 2 is not restricted in its installation location in the private room space 1 as long as it can be connected to an external power source.

The private room space 1 is a space used by users in their daily lives, and is composed of structures such as walls and doors. A table or chairs may be installed in the private room space 1. Furthermore, an air conditioner or the like that performs air conditioning (cooling, heating) in the private room space 1 may be installed.

Air 3 is air taken into the space purification device 2 from the private room space 1. The arrows in FIG. 1 indicate the main flows of air 3. As shown in FIG. 2, after the air 3 is introduced into the space purification device 2, it is separated into air 3a and air 3b. Although the details will be described later, air 3a is air that is sucked into the air supply section 7 and hypochlorous acid (hypochlorous acid gas) is added thereto, and air 3b is air that is not sucked into the air supply section 7 but internally. This air passes through the air passage 24 and is mixed with the air 3c to which hypochlorous acid (hypochlorous acid gas) has been added in the mixing section 21.

Air 4 is air blown out from space purification device 2 into private room space 1 . The arrows in FIG. 1 indicate the main flows of air 4. Although details will be described later, the air 4 contains hypochlorous acid (hypochlorous acid gas) generated inside the space purification device 2.

Next, a specific configuration of the space purification device 2 will be explained.

As shown in FIG. 2, the space purification device 2 includes an air passage section 17, a storage section 5, an air supply section 7, an air discharge section 9, an air supply section holding section 12, and a hypochlorous acid aqueous solution supply section 13. configured.

The air passage section 17 mixes air 3c containing hypochlorous acid gas supplied from the air discharge section 9 with air 3b that has passed through the internal air passage 24 out of the air 3 taken in from the outside air suction section 18. This is a member that emits air 4. The air passage section 17 is installed on the upper surface of the air discharge section 9. An opening that communicates with the air discharge section 9 is provided on the lower surface of the air passage section 17 . As a result, the air 3c from the air discharge section 9 is supplied into the air passage section 17. Note that the air passage section 17 can also be said to be a part of the casing that constitutes the outer frame of the space purification device 2.

More specifically, the air passage section 17 includes an outside air suction section 18 , a blowout section 19 , a mixing section 21 , an air blowing section 22 , and a filter section 23 .

The outside air suction part 18 is an opening through which the air passage part 17 communicates with the outside, and is an intake port for taking in the air 3 from the outside (the private room space 1 ) into the space purifying device 2 . The outside air suction section 18 is configured by a plurality of circular holes or a plurality of slits formed on the upper surface of the air passage section 17 .

The blowout section 19 is an opening through which the air passage section 17 communicates with the outside, and is a member for blowing out the air 4 containing hypochlorous acid gas from the space purification device 2 into the private room space 1 . Specifically, the blowing section 19 includes a blowing outlet 19a and a blowing direction hood 19b. The air outlet 19a is an opening through which air 4 containing hypochlorous acid gas flows out from inside the air passage part 17, and is formed by a plurality of circular holes or a plurality of slits formed on the upper surface of the air passage part 17. be done. The blowout direction hood 19b is a metal air hood installed so as to cover the entire blowout port 19a. The blowing direction hood 19b directs the blowing direction of the air 4 blown out from the blowing outlet 19a toward one direction of the space purifying device 2 (the opposite side to the outside air suction section 18). This prevents the air 4 blown out from the blowout section 19 from mixing with the air 3 sucked into the outside air suction section 18 .

The outside air suction section 18 and the blowout section 19 are connected to each other by an internal air passage 24 of the air passage section 17 . An air discharge section 9 is connected to the internal air passage 24 .

The mixing part 21 is a space in which air 3c containing hypochlorous acid gas supplied from the air discharge part 9 and air 3b passing through the internal air passage 24 out of the air 3 taken in from the outside air suction part 18 are mixed. be. The mixing part 21 is a part of the internal air passage 24, and can also be said to be a space where the air 3c and the air 3b in the internal air passage 24 merge. The air containing hypochlorous acid gas mixed in the mixing part 21 is blown out as air 4 from the blowing part 19 into the private room space 1 through the air passage part 17 .

The blower section 22 is a blower fan for circulating air through the air path section 17 , and is arranged in the internal air path 24 of the air path section 17 . By operating the ventilation section 22, air 3 is taken in from the outside air suction section 18, and in the mixing section 21, out of the air 3 taken in from the outside air suction section 18, air 3b that has passed through the internal air passage 24 and from the air discharge section 9 are mixed. It can be mixed with the supplied air 3c and blown out as air 4 from the blowing section 19.

The filter section 23 is a filter for removing dirt or foreign matter from the air 3 taken in from the outside air suction section 18 , and is arranged near the outside air suction section 18 in the internal air passage 24 .

The storage section 5 is a container that stores an aqueous hypochlorous acid solution 6 inside. The storage section 5 has a quadrangular prism shape, and the external dimensions of the storage section 5 are, for example, a width of 200 mm, a depth of 100 mm, and a height of 115 mm. Note that the storage section 5 can also be said to be a part of the casing that constitutes the outer frame of the space purification device 2. Inside the storage section 5, an air supply section 7 is installed while being immersed in the stored hypochlorous acid aqueous solution 6, and a water level sensor 16 (full water sensor 16a and low water sensor 16b) is installed. An opening (not shown) for communication and connection with the air discharge section 9 is provided on the upper surface of the storage section 5, and the air discharge section 9 is installed so as to cover the opening. An internal space 11 is formed in the upper part of the storage part 5 between the liquid surface 6a of the stored hypochlorous acid aqueous solution 6 and the lower surface of the air discharge part 9. A hypochlorous acid aqueous solution supply section 13 is installed on the side surface of the storage section 5 . Although not particularly shown, the storage section 5 is provided with an opening for supplying city water, and is configured so that city water can be directly supplied when the storage section 5 is in a drought.

More specifically, the storage section 5 includes a partition plate 25 extending vertically upward from the bottom 5c of the storage section 5. Although the details will be described later, the partition plate 25 has a first area 5a where the air release part 9 takes in the hypochlorous acid aqueous solution 6, and a second area 5b where the air bubbles 8 released from the air release part 9 circulate. This is a member that divides the storage section 5.

The first region 5 a is a region in the storage section 5 where the air supply section 7 sucks the hypochlorous acid aqueous solution 6 . More specifically, the first region 5a is a region where a solution suction port 7a of an air supply unit 7, which will be described later, is arranged and takes in the hypochlorous acid aqueous solution 6 from the solution suction port 7a, and is also referred to as a "suction region."

The second region 5b is a region in which the air bubbles 8 released from the air supply section 7 circulate within the storage section 5. More specifically, in the second region 5b, a discharge section 7d of the air supply section 7, which will be described later, is arranged, and air bubbles 8 released from the discharge section 7d float toward the liquid surface 6a of the hypochlorous acid aqueous solution 6. This is the area where the liquid flows, and is also called the "discharge area."

The bottom portion 5c refers to the bottom surface of the storage portion 5, and a partition plate 25 is provided thereon.

The partition plate 25 is a protrusion extending vertically upward from the bottom 5c of the storage section 5 to separate the first region 5a and the second region 5b. The partition plate 25 can also be said to be a protrusion that separates an area where the solution suction port 7a is installed and an area where the discharge part 7d is installed. As shown in FIG. 3, the partition plate 25 is installed so as to extend from one side surface of the storage section 5 to the other opposing side surface. Note that the partition plate 25 does not completely separate the two regions (the first region 5a and the second region 5b), and the hypochlorous acid aqueous solution 6 is separated between the two regions on the upper side of the storage section 5. Movement is possible.

The partition plate 25 is configured to have a forward tapered shape (a first tapered portion 25a and a second tapered portion 25b) in which the protrusion width becomes narrower vertically upward from the bottom 5c side of the storage portion 5. The first tapered portion 25a refers to the tapered shape of the partition plate 25 on the first region 5a side, and the second taper portion 25b refers to the tapered shape of the partition plate 25 on the second region 5b side.

Both the first tapered part 25a and the second tapered part 25b are curved in the direction of the bottom 5c from the apex of the partition plate 25 to the bottom 5c. Although details will be described later, in the second tapered part 25b, the bubbles 8 discharged from the discharge part 7d are made to flow in the opposite direction to the first region 5a so as to follow the curved taper shape. There is.

The internal space 11 is an air region that occurs above the liquid level 6a of the hypochlorous acid aqueous solution 6 in the storage section 5, and is formed over the entire surface of the storage section 5. The internal space 11 is formed above the liquid level 6a of the hypochlorous acid aqueous solution 6 even when the storage section 5 is filled with the hypochlorous acid aqueous solution 6. In the internal space 11, the bubbles 8 floating in the hypochlorous acid aqueous solution 6 burst and release hypochlorous acid gas, becoming air 3c containing hypochlorous acid gas.

The hypochlorous acid aqueous solution 6 is an aqueous solution containing hypochlorous acid (also referred to as hypochlorous acid water) that is generated by diluting a high concentration hypochlorous acid aqueous solution 15 described later. The hypochlorous acid aqueous solution 6 contains hypochlorous acid (hypochlorous acid gas) inside the bubbles 8 during the process in which the bubbles 8 supplied from the air supply section 7 described later circulate through the liquid due to buoyancy. have a role. Therefore, by increasing or decreasing the concentration of the hypochlorous acid aqueous solution 6, the amount of hypochlorous acid contained in the bubbles 8 can be increased or decreased. In addition, by setting the hydrogen ion concentration (pH) of the hypochlorous acid aqueous solution 6 to about 5 to 7,
Hypochlorous acid is easily vaporized from the hypochlorous acid aqueous solution 6, and the amount of hypochlorous acid contained in the bubbles 8 can be increased. In addition, by increasing the distance that the bubbles 8 rise due to buoyancy (the distance that the bubbles 8 flow through the hypochlorous acid aqueous solution 6) and increasing the contact time between the hypochlorous acid aqueous solution 6 and the bubbles 8, the bubbles 8 The amount of hypochlorous acid included in the water can be increased. For these reasons, in this embodiment, the concentration of the hypochlorous acid aqueous solution 6 is set to about 100 mg/L, the pH of the hypochlorous acid aqueous solution 6 is set to about 7, and the The capacity of the hypochlorous acid aqueous solution 6 stored inside (capacity when full) is about 2L. Note that the concentration of the hypochlorous acid aqueous solution 6 is adjusted to be several times higher than the concentration of the hypochlorous acid aqueous solution used in a conventional vaporization-type space purification device. Further, the hypochlorous acid aqueous solution 6 corresponds to the "aqueous solution containing a sterilizing component" in the claims.

The air supply unit 7 is a member that sucks air 3 a into the interior from the private room space 1 and releases the sucked air 3 a into the hypochlorous acid aqueous solution 6 as bubbles 8 . In this embodiment, the air supply section 7 mixes the hypochlorous acid aqueous solution 6 taken into the interior from the storage section 5 with the air 3a taken in from the outside (private room space 1), while the storage section 5 This is a pump that releases air bubbles 8 into an aqueous hypochlorous acid solution 6. The air supply section 7 is installed within the storage section 5 and fixed to the storage section 5 by the air supply section holding section 12 . The air supply section 7 is suspended from the upper part of the storage section 5 by the air supply section holding section 12 above the partition plate 25 in the vertical direction, and most of the member is immersed in the hypochlorous acid aqueous solution 6.

More specifically, the air supply section 7 includes a solution suction port 7a, an air suction port 7b, a bubble generation section 7c, a discharge section 7d, and a motor section 7e. The air supply section 7 is suspended from the upper part of the storage section 5, with a solution suction port 7a and an air suction port 7b located in the first region 5a of the storage section 5, and a solution suction port 7a and an air suction port 7b located in the second region 5b of the storage section 5. It is installed so that the bubble generation part 7c, the discharge part 7d, and the motor part 7e are located.

The solution suction port 7a is a cylindrical suction port that sucks the hypochlorous acid aqueous solution 6 from the storage section 5. The solution suction port 7a is located in the first region 5a of the storage section 5, and is substantially horizontal with respect to the bottom 5c of the storage section 5, and is located on the side surface of the storage section 5 in the direction opposite to the second region 5b side. It is installed facing the direction. The solution suction port 7a is connected to the bubble generating section 7c. The solution suction port 7a sucks the hypochlorous acid aqueous solution 6 from the storage section 5 when the motor section 7e operates, and sends the hypochlorous acid aqueous solution 6 sucked from the storage section 5 to the bubble generation section 7c.

The air suction port 7b is a cylindrical suction port that sucks the air 3a within the internal air passage 24. One end of the air suction port 7b is connected to the side surface of the solution suction port 7a, and the other end of the air suction port 7b extends vertically upward to the internal air passage 24. The air suction port 7b is, for example, a tube made of resin. The air suction port 7b sucks air 3a from the internal air passage 24 when the motor part 7e operates, and sends the sucked air 3a into the hypochlorous acid aqueous solution 6 sucked from the solution suction port 7a.

Here, the other end of the air suction port 7b is arranged downstream of the filter section 23 in the internal air passage 24 and upstream of the mixing section 21. As a result, the air suction port 7b can take in the air 3a with little dirt after passing through the filter section 23 and feed it into the hypochlorous acid aqueous solution 6, which prevents clogging of the air suction port 7b due to dirt accumulation. Contamination of the chloric acid aqueous solution 6 can be prevented.

The bubble generating section 7c is a member that stirs and mixes the hypochlorous acid aqueous solution 6 containing the air 3a flowing in from the solution suction port 7a. The bubble generation section 7c connects the solution suction port 7a and the discharge section 7d, and when the motor section 7e operates, the bubble generation section 7c generates hypochlorous acid aqueous solution 6 (containing air 3a) flowing from the solution suction port 7a. The chlorous acid aqueous solution 6) is delivered to the discharge section 7d. At this time, the bubble generating unit 7c internally stirs and mixes the hypochlorous acid aqueous solution 6 and the air 3a, atomizes the air 3a to form bubbles 8, and discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8. The information is sent to section 7d. It can be said that the bubble generating section 7c atomizes the air 3a and generates the bubbles 8 while mixing the hypochlorous acid aqueous solution 6 and the air 3a inside. Note that hypochlorous acid gas is contained in the air 3a (bubbles 8) during the stirring and mixing process inside the bubble generating section 7c.

The discharge section 7d is a discharge section that discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8 generated in the bubble generation section 7c into the hypochlorous acid aqueous solution 6 in the storage section 5. The discharge part 7d is located in the second region 5b of the storage part 5, and is installed facing the bottom part 5c of the storage part 5 in the vertical direction downward. The discharge section 7d then discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8 toward the bottom 5c of the storage section 5. Specifically, the discharge section 7d discharges the hypochlorous acid aqueous solution 6 containing air bubbles 8 toward the second tapered section 25b of the partition plate 25 provided at the bottom 5c of the storage section 5. In addition, although the discharge part 7d is said to "discharge the hypochlorous acid aqueous solution 6 containing the bubbles 8," it may be read as "discharges the bubbles 8."

The motor section 7e is a member that performs a series of operations of the air supply section 7. The motor section 7e causes the hypochlorous acid aqueous solution 6 to flow inside the air supply section 7 by rotating. Specifically, the hypochlorous acid aqueous solution 6 is sucked in from the solution suction port 7a by the rotational operation of the motor part 7e, and the air 3a is sucked into the solution from the air suction port 7b due to negative pressure inside the solution suction port 7a. It is sucked into the suction port 7a. Then, bubbles 8 are generated during the stirring and mixing process in the bubble generating section 7c, and the generated bubbles 8 are discharged into the hypochlorous acid aqueous solution 6 from the discharge section 7d.

The air supply section 7 is configured as described above.

Then, in the air supply section 7, by controlling the amount of air 3a supplied to the hypochlorous acid aqueous solution 6, the stirring & mixing time in the bubble generation section 7c, and the size (diameter) of the bubbles 8 to be generated, It is possible to adjust the amount of hypochlorous acid (hypochlorous acid gas) contained in the air 4 released from the private room space 1 from the air release section 9, which will be described later.

Specifically, in the air supply unit 7, as the amount of air 3a supplied to the hypochlorous acid aqueous solution 6 increases, the amount (number of generated) of bubbles 8 increases accordingly, and the air bubbles 8 are released from the air discharge unit 9. Hypochlorous acid gas contained in the air 4 to be released can be increased. In addition, in the air supply section 7, by lengthening the stirring and mixing time in the bubble generation section 7c, the contact time between the hypochlorous acid aqueous solution 6 and the air 3a becomes longer, and the bubbles that are finally generated are increased. The amount of hypochlorous acid gas contained in 8 can be increased. In addition, in the air supply unit 7, by reducing the size (diameter) of the bubbles 8 released into the hypochlorous acid aqueous solution 6, the rising speed of the bubbles 8 when floating is reduced, and the hypochlorous acid aqueous solution 6 is The contact time between the air bubbles 8 and the air bubbles 8 can be increased. Furthermore, compared to the case where the size (diameter) of the bubbles 8 is large, the contact area between the hypochlorous acid aqueous solution 6 and the bubbles 8 flowing in the liquid can be increased. As a result, the amount of hypochlorous acid taken into the bubbles 8 during the floating process of the bubbles 8 flowing through the hypochlorous acid aqueous solution 6 increases, and the amount of hypochlorous acid contained in the air 4 released from the air release section 9 increases. Chloric acid can be increased.

Here, the amount of air 3a supplied to the hypochlorous acid aqueous solution 6 by the air supply unit 7 can be controlled by the amount of air sucked into the air suction port 7b. Further, the size (diameter) of the bubble 8 can be controlled by the diameter of the air suction port 7b (and the amount of air sucked into the air suction port 7b). Further, the depth at which the bubbles 8 discharged from the discharge section 7d reach can be controlled by the amount of the hypochlorous acid aqueous solution 6 taken in by the air supply section 7. Based on these considerations, in this embodiment, the amount of air 3a supplied to the hypochlorous acid aqueous solution 6 by the air supply unit 7 is set to about 0.1 m3/h, and the size of the air bubbles 8 generated at the solution suction port 7a ( The diameter) is approximately 1 mm to 2 mm, and the amount of hypochlorous acid aqueous solution 6 taken in by the air supply section 7 is 5 L/min.

The air bubbles 8 are the air 3a sucked from the private room space 1 by the air supply unit 7 (air suction port 7b), which is atomized into bubbles, and the air is trapped by the hypochlorous acid aqueous solution 6. It has become. The air bubbles 8 released from the air supply section 7 float up while taking in the hypochlorous acid (and moisture) contained in the hypochlorous acid aqueous solution 6 into the air inside. Thereafter, when the bubbles 8 rise to the liquid level 6a of the hypochlorous acid aqueous solution 6, they burst and disappear. Then, the air in the bubbles 8 is mixed with the air in the internal space 11 along with the hypochlorous acid (and moisture) contained in the air. Thereafter, the air in the internal space 11 (air containing hypochlorous acid) is supplied from the air discharge section 9 to the mixing section 21 as air 3c.

The air discharge section 9 is a member that communicates the storage section 5 and the air passage section 17, and is installed between the upper surface of the storage section 5 and the lower surface of the air passage section 17. The air discharge section 9 includes an eliminator 10. The air discharge part 9 supplies air containing hypochlorous acid (air in the internal space 11) introduced from the opening (not shown) of the storage part 5 to the supply port (not shown) of the air discharge part 9. The air is then led out through the eliminator 10 to the mixing section 21 of the air passage section 17 as air 3c.

The eliminator 10 is a porous member that removes water droplets and the like generated when the bubbles 8 burst on the liquid surface 6a in the reservoir 5. The eliminator 10 is installed inside the air discharge part 9 so as to cover the entire liquid surface 6a of the hypochlorous acid aqueous solution 6 in the storage part 5. The eliminator 10 allows air 3c containing hypochlorous acid gas to flow through it, but removes water droplets and the like. Thereby, it is possible to prevent water droplets from scattering to the air passage section 17, and furthermore, from spraying water droplets from the space purifying device 2 to the private room space 1.

The air supply section holding section 12 is a flat member that fixes the air supply section 7 within the storage section 5 . The air supply section holding section 12 fixes the air supply section 7 so as to suspend it below the eliminator 10.

The hypochlorous acid aqueous solution supply section 13 is a member that supplies the high concentration hypochlorous acid aqueous solution 15 to the storage section 5 . The hypochlorous acid aqueous solution supply section 13 is installed on the side surface of the storage section 5 . The hypochlorous acid aqueous solution supply unit 13 adjusts the concentration of the hypochlorous acid aqueous solution 6 by supplying the high concentration hypochlorous acid aqueous solution 15 to the hypochlorous acid aqueous solution 6. More specifically, the hypochlorous acid aqueous solution supply section 13 includes a hypochlorous acid aqueous solution tank 13a, a hypochlorous acid aqueous solution pump 13b, and a tube 13c.

The hypochlorous acid aqueous solution tank 13a is a container that stores therein a high concentration hypochlorous acid aqueous solution 15 having a predetermined concentration. The hypochlorous acid aqueous solution tank 13a is, for example, a bag-shaped deformable pouch pack container that seals and stores the high concentration hypochlorous acid aqueous solution 15 as the contents. The hypochlorous acid aqueous solution tank 13a is capable of supplying the high concentration hypochlorous acid aqueous solution 15 to the storage section 5 via the tube 13c by the operation of the hypochlorous acid aqueous solution pump 13b.

The hypochlorous acid aqueous solution pump 13b is a member that sends out the high concentration hypochlorous acid aqueous solution 15 from the hypochlorous acid aqueous solution tank 13a to the storage section 5 in response to an output signal from a control section (not shown). .

The tube 13c connects the hypochlorous acid aqueous solution tank 13a and an inlet (not shown) provided on the side wall of the container constituting the storage section 5 via the hypochlorous acid aqueous solution pump 13b. This is a member for circulating the high concentration hypochlorous acid aqueous solution 15 from the chloric acid aqueous solution tank 13a to the storage section 5.

The high-concentration hypochlorous acid aqueous solution 15 is a chemical solution (hypochlorous acid water) that adjusts the hypochlorous acid aqueous solution 6 stored in the storage section 5 to a predetermined concentration or higher. The high concentration hypochlorous acid aqueous solution 15 can also be said to be a hypochlorous acid water stock solution. The high concentration hypochlorous acid aqueous solution 15 is desirably several times higher in concentration than the hypochlorous acid aqueous solution 6 because it is diluted in the storage section 5 to adjust the hypochlorous acid aqueous solution 6 to a predetermined concentration. Based on this, in the present embodiment, the concentration of the high concentration hypochlorous acid aqueous solution 15 is set to 1000 ppm, and the amount of the high concentration hypochlorous acid aqueous solution 15 supplied by the hypochlorous acid aqueous solution pump 13b is set to 200 mL.

The hypochlorous acid aqueous solution supply section 13 is configured as described above.

Then, the hypochlorous acid aqueous solution supply section 13 operates the hypochlorous acid aqueous solution pump 13b to supply a predetermined amount of the high concentration hypochlorous acid aqueous solution 15 from the hypochlorous acid aqueous solution tank 13a to the storage section through the tube 13c. Supply to 5. As a result, the high concentration hypochlorous acid aqueous solution 15 is mixed with the hypochlorous acid aqueous solution 6 stored in the storage section 5 .

Next, the water level sensor 16 (full water sensor 16a and low water sensor 16b) will be explained.

The water level sensor 16 is a member that detects the water level of the hypochlorous acid aqueous solution 6 stored inside the storage section 5. The water level sensor 16 includes a full water sensor 16a and a low water sensor 16b. Each of the water level sensors 16 is installed at a predetermined height within the reservoir 5.

The full water sensor 16a detects that the water level of the hypochlorous acid aqueous solution 6 stored in the storage section 5 is in a full water state (full water level). On the other hand, the drought sensor 16b detects that the water level of the hypochlorous acid aqueous solution 6 stored in the storage section 5 is in a drought state (drought water level). The water shortage sensor 16b is provided at a higher position than the solution suction port 7a of the air supply section 7, and when the water level of the hypochlorous acid aqueous solution 6 decreases, air flows into the solution suction port 7a and causes an abnormality in the air supply section 7. Prevents noise or abnormalities from occurring. In this embodiment, the dry water level is set to 1.5 L, which is 25% less than the 2 L capacity of the hypochlorous acid aqueous solution 6 at the full water level (capacity at full water level).

As described above, the space purification device 2 is composed of each member.

Next, a method for adjusting the concentration of the hypochlorous acid aqueous solution 6 will be explained.

First, the user supplies city water to the storage section 5 and starts the operation of the space purification device 2. After the start of operation, if the water shortage sensor 16b does not detect water shortage, the hypochlorous acid aqueous solution supply section 13 supplies a predetermined amount of high concentration hypochlorous acid aqueous solution 15 to the storage section 5, so that the storage section 5 has a predetermined concentration. A hypochlorous acid aqueous solution 6 is produced. When the amount of water in the hypochlorous acid aqueous solution 6 in the storage unit 5 decreases during long-term operation and the water shortage sensor 16b detects a water shortage, a drainage lamp (not shown) lights up to notify the user of drainage. do. After draining the remaining hypochlorous acid aqueous solution 6 from the storage section 5, the user supplies city water to the storage section 5 again and starts the operation of the space purification device 2. As a result, a new hypochlorous acid aqueous solution 6 of a predetermined concentration is always stored in the storage section 5.

Next, with reference to FIG. 2, the flow of each air (air 3, air 3a, air 3b, air 3c, air bubbles 8, and air 4) in the space purification device 2 will be explained.

In the space purification device 2, when the blower section 22 operates, the air 3 in the private room space 1 is sucked into the interior (air path section 17) from the outside air suction section 18 as a basic air flow. The air 3 flows through the internal air passage 24 and is released as air 4 from the blow-off section 19 into the private room space 1.

On the other hand, when the motor section 7e of the air supply section 7 starts operating, a portion of the air 3 within the internal air passage 24 is separated as air 3a. That is, the air 3 is separated into a part of the air 3a and the remaining air 3b. The separated air 3a is sucked in through the air suction port 7b (the other end of the air suction port 7b), and sent into the hypochlorous acid aqueous solution 6 sucked in through the solution suction port 7a. The air 3a sent into the hypochlorous acid aqueous solution 6 is introduced into the bubble generating section 7c together with the hypochlorous acid aqueous solution 6, and is stirred and mixed within the bubble generating section 7c. The air 3a in the bubble generating section 7c is made fine in the process of stirring and mixing with the hypochlorous acid aqueous solution 6. Then, the micronized air 3a is sent out as bubbles 8 together with the hypochlorous acid aqueous solution 6 from the discharge section 7d into the hypochlorous acid aqueous solution 6 in the storage section 5.

The bubbles 8 discharged from the discharge part 7d are discharged toward the bottom part 5c of the storage part 5 located vertically downward, so they descend in the hypochlorous acid aqueous solution 6 in the direction of the arrow F1. The descending air bubbles 8 have the force of colliding with the second tapered part 25b of the partition plate 25, change the flow direction so as to continue along the second tapered part 25b, and flow in a substantially horizontal direction ( It is distributed in the direction of arrow F2). At this time, the descending air bubbles 8 flow in the direction opposite to the first region 5a by the partition plate 25, and therefore do not diffuse in the direction of the first region 5a where the solution suction port 7a is located.

Then, the bubbles 8 flowing in the substantially horizontal direction float toward the liquid surface 6a under the influence of buoyancy, as indicated by arrow F3. When the floating bubbles 8 reach the liquid surface 6a, they burst, mix with the air in the internal space 11, and move to the air discharge section 9 as air 3c. As described above, the air 3c contains hypochlorous acid gas.

The air 3c introduced into the air discharge section 9 passes through the eliminator 10 and is led out to the mixing section 21 of the air path section 17.

The air 3c (air 3c containing hypochlorous acid gas) led out to the mixing part 21 is mixed with the air 3b flowing through the internal air passage 24, and is sent from the blowing part 19 to a private room as air 4 containing hypochlorous acid gas. released into space 1.

The released air 4 (air 4 containing hypochlorous acid gas) then diffuses into the private room space 1. As a result, the private room space 1 is sterilized by the air 4 containing hypochlorous acid gas.

In this embodiment, the air 3a and the hypochlorous acid aqueous solution 6 are stirred and mixed in the air bubble generating section 7c, and the air bubbles 8 are generated as the air bubbles 8 move in the direction of the arrow F1 and the direction of the arrow F2. By increasing the residence time in the hypochlorous acid aqueous solution 6, the concentration of the hypochlorous acid gas contained in the bubbles 8 can be increased.

As mentioned above, according to the space purification device 2 according to the first embodiment, the following effects can be enjoyed.

(1) The space purification device 2 includes a storage section 5 that stores an aqueous hypochlorous acid solution 6, and a storage section 5 that is immersed in the aqueous hypochlorous acid solution 6. and an air supply section 7 for discharging the hypochlorous acid into the aqueous hypochlorous acid solution 6. The air supply unit 7 mixes the hypochlorous acid aqueous solution 6 taken into the interior from the storage unit 5 with the air 3a taken in from the outside (private room space 1), and mixes the hypochlorous acid aqueous solution stored in the storage unit 5. 6 to release air bubbles.

According to such a configuration, in the process of mixing the hypochlorous acid aqueous solution 6 and the air 3a inside the air supply unit 7, a certain amount of hypochlorous acid gas can be included in the air 3a. As a result, the bubbles 8 contain hypochlorous acid gas taken in inside the air supply section 7 and hypochlorous acid gas taken into the bubbles 8 in the process of the bubbles 8 floating in the hypochlorous acid aqueous solution 6. can be included. As a result, when the bubbles 8 reach the liquid level 6a, the concentration of hypochlorous acid gas released from the bubbles 8 can be increased. That is, the space purification device 2 can improve the concentration of hypochlorous acid gas contained in the bubbles 8, and can supply a higher concentration of hypochlorous acid gas to the outside (private room space 1).

(2) In the space purification device 2, the air supply section 7 includes a solution suction port 7a that takes in the hypochlorous acid aqueous solution 6 from the storage section 5 into the interior, and an air intake port 7a that takes in the air 3a from the outside (air path section 17) into the inside. The discharge part 7d includes a suction port 7b and a discharge part 7d that discharges a mixed state of the hypochlorous acid aqueous solution 6 taken in from the solution suction port 7a and the air 3a taken in from the air suction port 7b. is now emitted vertically downward. As a result, the bubbles 8 discharged from the discharge part 7d descend at least vertically downward in the hypochlorous acid aqueous solution 6, and then float toward the liquid level 6a, so that the bubbles 8 The time for the hypochlorous acid to flow through the chloric acid aqueous solution 6 becomes longer, and the amount of hypochlorous acid gas taken into the bubbles 8 further increases. As a result, when the bubbles 8 reach the liquid level 6a, the concentration of hypochlorous acid gas released from the bubbles 8 can be further increased.

(3) In the space purification device 2, the storage section 5 has a partition plate 25 extending vertically upward from the bottom 5c of the storage section 5, and the partition plate 25 has the solution suction port 7a arranged therein. , a storage section 5 is provided in a first region 5a that takes in an aqueous hypochlorous acid solution 6 from a solution suction port 7a, and a second region 5b where a discharge section 7d is disposed and through which bubbles 8 released from the discharge section 7d flow. I tried to separate it. Thereby, the air bubbles 8 discharged from the discharge portion 7d in the second region 5b can be prevented from being sucked into the solution suction port 7a of the first region 5a by the partition plate 25. As a result, the generation of abnormal noise caused by the hypochlorous acid aqueous solution 6 containing air bubbles 8 being taken in from the solution suction port 7a is suppressed. In other words, the space purification device 2 can supply hypochlorous acid gas at a higher concentration to the outside (private room space 1) while suppressing noise.

(4) In the space purification device 2, the partition plate 25 is configured such that the second region 5b side has a forward tapered shape (second tapered portion 25b), and the discharge portion 7d blows air bubbles onto the forward tapered portion. 8 was released. As a result, the air bubbles 8 discharged vertically downward from the discharge portion 7d change direction along the forward tapered portion (second tapered portion 25b) and flow approximately horizontally, so that the air bubbles 8 The time for the hypochlorous acid aqueous solution 6 to flow becomes longer, and the amount of hypochlorous acid gas taken into the bubbles 8 can be further increased.

(Embodiment 2)
With reference to FIG. 4, a space purification device 2a according to the second embodiment will be described. FIG. 4 is a schematic side view showing the configuration of a space purification device 2a according to Embodiment 2 of the present invention.

The space purification device 2a according to the second embodiment of the present invention differs from the first embodiment in that it includes a hypochlorous acid water generation section 29 instead of the hypochlorous acid aqueous solution supply section 13. The other configuration of the space purification device 2a is the same as that of the space purification device 2 according to the first embodiment. Hereinafter, the content already explained in Embodiment 1 will be omitted from being explained again, and the points different from Embodiment 1 will be mainly explained.

As shown in FIG. 4, the space purification device 2a includes a hypochlorous acid water generating section 29 as a concentration adjusting means for the hypochlorous acid aqueous solution 6. The hypochlorous acid water generation section 29 has a chloride supply section 26 and an electrode 27. The hypochlorous acid water generation unit 29 electrolyzes the chloride aqueous solution 28 supplied from the chloride supply unit 26 using the electrode 27 to generate hypochlorous acid, and the hypochlorous acid water is stored in the storage unit 5. Adjust the acid aqueous solution 6 to a predetermined concentration. Note that the hypochlorous acid water generation section 29 corresponds to the "sterilized water generation section" in the claims.

The chloride supply unit 26 is a member that supplies a predetermined amount of the chloride aqueous solution 28 to the hypochlorous acid aqueous solution 6 stored in the storage unit 5 . The chloride supply unit 26 is installed outside the storage unit 5 and introduces the chloride aqueous solution 28 into the storage unit 5 through an inlet (not shown) provided on the side wall of a container that constitutes the storage unit 5. configured to do so. More specifically, the chloride supply section 26 includes a chloride aqueous solution tank 26a, a chloride pump 26b, and a tube 26c.

The chloride aqueous solution tank 26a is a container that stores therein a chloride aqueous solution 28 having a predetermined concentration. The chloride aqueous solution tank 26a is, for example, a bag-like deformable pouch pack container that seals and stores the chloride aqueous solution 28 as its contents. The chloride aqueous solution tank 26a can supply the chloride aqueous solution 28 to the storage section 5 via the tube 26c by operation of the chloride pump 26b.

The chloride aqueous solution 28 may be any electrolyte that can generate hypochlorous acid water by electrolysis, and is not particularly limited as long as it contains even a small amount of chloride ions. For example, it may contain sodium chloride, calcium chloride, or solute as a solute. An example is an aqueous solution in which magnesium chloride or the like is dissolved. Additionally, potassium phosphate or the like may be added to adjust the pH of the aqueous solution. In this embodiment, as the chloride aqueous solution 28, an aqueous solution in which potassium phosphate is added to a sodium chloride aqueous solution (salt water) is used. Further, it is desirable that the chloride aqueous solution 28 has a high concentration of sodium chloride. By using the highly concentrated chloride aqueous solution 28, chloride (chloride aqueous solution) can be supplied to the hypochlorous acid aqueous solution 6 without significantly changing the amount of water in the hypochlorous acid aqueous solution 6.

The chloride pump 26b is a member that sends out the chloride aqueous solution 28 from the chloride aqueous solution tank 26a to the storage section 5 in response to an output signal from a control section (not shown).

The tube 26c connects the chloride aqueous solution tank 26a and an inlet provided on the side wall of the container constituting the storage section 5 via the chloride pump 26b, and supplies chloride from the chloride aqueous solution tank 26a to the storage section 5. This is a member for circulating the aqueous solution 28.

The chloride supply section 26 is configured as described above.

Then, the chloride supply unit 26 supplies a predetermined amount of the chloride aqueous solution 28 from the chloride aqueous solution tank 26a to the storage unit 5 through the tube 26c by operating the chloride pump 26b. As a result, the chloride aqueous solution 28 is mixed with the hypochlorous acid aqueous solution 6 stored in the storage section 5 .

The electrode 27 is a member for electrolyzing a chloride aqueous solution 28, which is an aqueous solution containing chloride ions. The electrode 27 is installed, for example, in a submerged state in the hypochlorous acid aqueous solution 6 at the bottom 5c of the storage section 5. The electrode 27 consists of a pair of electrodes, an anode and a cathode, and is constructed by having a catalyst coating on the surface of a conductive substrate. For example, titanium, tantalum, nickel, or stainless steel can be used for the conductive substrate, but titanium is preferred because of its high corrosion resistance against hypochlorous acid. Further, as the catalyst contained in the catalyst film, for example, iridium or a platinum group metal is used. Thereby, the electrolysis reaction at the electrode 27 can be activated.

At the electrode 27, by passing a current between the pair of electrodes, chloride (chloride aqueous solution 28) is electrolyzed, and hypochlorous acid is generated. As a result, the mixed aqueous solution of the hypochlorous acid aqueous solution 6 and the chloride aqueous solution 28 stored in the storage section 5 is adjusted as the hypochlorous acid aqueous solution 6 having a predetermined concentration. Here, the time during which the electrode 27 is energized is set to a time determined experimentally in advance based on the amount of chloride supplied to the reservoir 5, for example.

Next, the flow of operation of the hypochlorous acid water generating section 29 will be explained.

In the hypochlorous acid water generation unit 29, hypochlorous acid is supplied to the hypochlorous acid aqueous solution 6 at regular intervals in order to adjust the hypochlorous acid aqueous solution 6 stored in the storage unit 5 to a predetermined concentration. do. That is, although the details will be described later, in the hypochlorous acid water generation section 29, the chloride supply section 26 supplies a predetermined amount of the chloride aqueous solution 28, and the electrode 27 performs electrolysis at regular intervals.

In the hypochlorous acid water generating section 29, first, after a certain period of time has passed, a predetermined amount of the chloride aqueous solution 28 is sent from the chloride aqueous solution tank 26a to the storage section 5 by the chloride pump 26b, and the hypochlorous acid aqueous solution 6 is A chloride aqueous solution 28 is supplied and mixed. Then, in the hypochlorous acid water generation section 29, a current is applied to the electrode 27 to electrolyze the chloride, that is, sodium chloride, mixed in the hypochlorous acid aqueous solution 6, and the sodium chloride is supplied as the chloride aqueous solution 28. generates hypochlorous acid corresponding to the amount of This results in a state equivalent to when hypochlorous acid is supplied to the hypochlorous acid aqueous solution 6. In other words, the concentration of the hypochlorous acid aqueous solution 6 (concentration of hypochlorous acid) is adjusted by the hypochlorous acid water generation section 29. At this time, in the operation of the hypochlorous acid water generation unit 29, by adjusting the amount (supply amount) of the chloride aqueous solution 28 supplied to the hypochlorous acid aqueous solution 6, The amount of chlorite can be controlled. Note that by electrolyzing sodium chloride, the pH of the hypochlorous acid aqueous solution 6 increases, but it is neutralized by potassium phosphate contained in the chloride aqueous solution 28 and adjusted to a predetermined pH. .

As described above, the space purification device 2a adjusts the hypochlorous acid aqueous solution 6 to a predetermined concentration.

As described above, according to the space purification device 2a according to the second embodiment, in addition to the effects (1) to (4) described above, the following effects can be enjoyed.

(5) The space purification device 2a is configured to include a hypochlorous acid water generation unit 29 that adjusts the hypochlorous acid aqueous solution 6 to a predetermined concentration. According to such a configuration, the concentration of the hypochlorous acid aqueous solution 6 can be easily controlled, so that the concentration of the hypochlorous acid aqueous solution 6 can be stabilized. In other words, the space purification device 2a can stably release higher concentration hypochlorous acid gas to the outside (private room space 1).

(Embodiment 3)
A space purification device 2b according to the third embodiment will be described with reference to FIGS. 5 and 6. FIG. 5 is a schematic side view showing the configuration of a space purification device 2b according to Embodiment 3 of the present invention. FIG. 6 is a schematic transparent front view showing the configuration of the space purification device 2b.

In the space purification device 2b according to the third embodiment of the present invention, the air bubbles 8 are selectively formed on the fourth region 5e side (the region corresponding to the second region 5b side in the first embodiment) without providing the partition plate 25. This differs from Embodiment 1 in that a flow direction adjustment plate 7f is provided at the tip of the discharge portion 7d to allow the flow to flow. The other configuration of the space purification device 2b is the same as that of the space purification device 2 according to the first embodiment. Hereinafter, the content already explained in Embodiment 1 will be omitted from being explained again, and the points different from Embodiment 1 will be mainly explained.

As shown in FIG. 5, in the space purification device 2b, the air supply section 7 is provided extending vertically downward from the tip of the discharge section 7d, and includes a flow direction adjustment plate 7f that changes the flow direction of the air bubbles 8. Although details will be described later, the flow direction adjustment plate 7f has a solution suction port 7a arranged so that the flow direction when the bubbles 8 discharged vertically downward from the discharge portion 7d flows through the hypochlorous acid aqueous solution 6. The region (third region 5d) is a member that changes to the region (fourth region 5e) on the opposite side of the flow direction adjusting plate 7f. Note that the flow direction adjusting plate 7f has the same role as the partition plate 25 of the space purification device 2, and the solution suction port 7a takes in the hypochlorous acid aqueous solution 6 from the third area 5d and discharges it from the discharge part 7d. It can also be said that the storage section 5 is divided into a fourth region 5e through which the bubbles 8 mainly circulate.

The third region 5d is a region in the storage section 5 where the air supply section 7 sucks the hypochlorous acid aqueous solution 6. More specifically, the third region 5d is a region where the solution suction port 7a of the air supply unit 7 is arranged and takes in the hypochlorous acid aqueous solution 6 from the solution suction port 7a, and is the first region 5a in the space purification device 2. corresponds to

The fourth region 5e is a region in which the air bubbles 8 released from the air supply section 7 mainly flow within the storage section 5. More specifically, in the fourth region 5e, the discharge part 7d of the air supply part 7 is arranged, and when the air bubbles 8 released from the discharge part 7d float toward the liquid surface 6a of the hypochlorous acid aqueous solution 6, This is a region where the air circulates, and corresponds to the second region 5b in the space purification device 2.

The flow direction adjustment plate 7f is provided at the tip (lower end) of the discharge part 7d, and directs the flow direction of the bubbles 8 discharged vertically downward from the discharge part 7d in the hypochlorous acid aqueous solution 6 to the fourth region 5e side. This is a member that changes the flow direction in the direction along the bottom 5c of the storage section 5 (the direction away from the flow direction adjusting plate 7f).

Specifically, the flow direction adjusting plate 7f is attached so as to extend vertically downward from the lower end of the bubble generating section 7c along the side surface of the discharge section 7d on the side of the solution suction port 7a. The flow direction adjusting plate 7f extends further straight down in the vertical direction from the tip (lower end) of the discharge portion 7d, and the tip portion of the flow direction adjusting plate 7f is located on the opposite side from the third region 5d in the vicinity of the bottom 5c of the storage portion 5. It is curved in an arc in the direction of the fourth region 5e. That is, a predetermined curved surface (also referred to as an inner curved surface) is formed at the tip of the flow direction adjustment plate 7f. Further, as shown in FIG. 6, the flow direction adjusting plate 7f is installed so as to extend from one side surface of the discharge portion 7d to the other opposing side surface. In other words, the flow direction adjustment plate 7f is configured to correspond to the opening width of the discharge portion 7d. Then, the bubbles 8 (hypochlorous acid aqueous solution 6 containing the bubbles 8) discharged vertically downward from the discharge portion 7d are sprayed onto the curved surface of the flow direction adjusting plate 7f.

Next, with reference to FIG. 5, the flow of bubbles 8 in the space purifying device 2b will be described.

The bubbles 8 discharged from the discharge part 7d are discharged toward the bottom part 5c of the storage part 5 located vertically downward, so they descend in the hypochlorous acid aqueous solution 6 in the direction of the arrow F4. The descending air bubbles 8 have the force of colliding with the curved surface of the flow direction adjustment plate 7f, change the flow direction so as to continue along the curved surface of the flow direction adjustment plate 7f, and flow in a substantially horizontal direction ( It is distributed in the direction shown by arrow F5). At this time, the air bubbles 8 that have descended flow in the direction opposite to the third region 5d by the flow direction adjusting plate 7f, and therefore do not diffuse into the third region 5d where the solution suction port 7a is located.

Then, the bubbles 8 flowing in the substantially horizontal direction float toward the liquid surface 6a under the influence of buoyancy, as indicated by arrow F6. When the floating bubbles 8 reach the liquid surface 6a, they burst, mix with the air in the internal space 11, and move to the air discharge section 9 as air 3c. As described above, the air 3c contains hypochlorous acid gas.

The air 3c introduced into the air discharge section 9 passes through the eliminator 10 and is led out to the mixing section 21 of the air path section 17.

The air 3c (air 3c containing hypochlorous acid gas) led out to the mixing part 21 is mixed with the air 3b flowing through the internal air passage 24, and is sent from the blowing part 19 to a private room as air 4 containing hypochlorous acid gas. released into space 1.

The released air 4 (air 4 containing hypochlorous acid gas) then diffuses into the private room space 1. As a result, the private room space 1 is sterilized by the air 4 containing hypochlorous acid gas.

In this embodiment, the air 3a and the hypochlorous acid aqueous solution 6 are stirred and mixed in the air bubble generating section 7c, and the air bubbles 8 are generated as the air bubbles 8 move in the direction of the arrow F4 and the direction of the arrow F5. By increasing the residence time in the hypochlorous acid aqueous solution 6, the concentration of the hypochlorous acid gas contained in the bubbles 8 can be increased.

As described above, according to the space purification device 2b according to the third embodiment, in addition to the effects (1) to (2) described above, the following effects can be enjoyed.

(6) In the space purification device 2b, the air supply section 7 is provided at the tip of the discharge section 7d, and adjusts the flow direction of the air bubbles 8 discharged vertically downward from the discharge section 7d. The flow direction adjusting plate 7f is provided. The flow direction adjustment plate 7f changes the flow direction of the bubbles 8 toward a region (fourth region 5e) on the opposite side of the flow direction adjustment plate 7f from the region (third region 5d) where the solution suction port 7a is arranged. The configuration was such that As a result, the air bubbles 8 discharged from the discharge part 7d in the fourth region 5e flow in the direction of the fourth region 5e on the opposite side to the third region 5d where the solution suction port 7a is arranged by the flow direction adjusting plate 7f. , it is possible to suppress the air bubbles 8 from being sucked into the solution suction port 7a of the third region 5d. As a result, the generation of abnormal noise caused by the hypochlorous acid aqueous solution 6 containing air bubbles 8 being taken in from the solution suction port 7a is suppressed. In other words, the space purification device 2b can supply hypochlorous acid gas at a higher concentration to the outside while suppressing noise.

Although the present invention has been described above based on the embodiments, the present invention is not limited to the above-described embodiments, and various improvements and modifications can be made without departing from the spirit of the present invention. can be easily inferred.

In the space purification devices 2 and 2a according to the present embodiment, a partition plate 25 is provided at the bottom 5c of the storage portion 5, and in the space purification device 2b, a flow direction adjustment plate 7f is provided at the tip of the discharge portion 7d. However, the present invention is not limited to this, and for example, instead of providing the partition plate 25 or the flow direction adjusting plate 7f, the discharge part 7d itself may be configured such that the air bubbles 8 selectively flow to the second region 5b side or the fourth region 5e side. The blowing direction may be changed. Specifically, the direction in which the bubbles 8 (the hypochlorous acid aqueous solution 6 containing the bubbles 8) are blown out from the discharge part 7d is set at an angle of 45 degrees with respect to the vertical direction (the first region 5a or the third The direction may be at an angle of 45 degrees, which is the opposite side to the region 5d. Even in this case, the air bubbles 8 can be prevented from being sucked into the solution suction port 7a. Moreover, the time during which the bubbles 8 flowing through the hypochlorous acid aqueous solution 6 are in contact with the hypochlorous acid aqueous solution 6 can be increased.

Further, in the space purification devices 2 and 2a according to the present embodiment, the partition plate 25 is configured to have a forward tapered shape, but the present invention is not limited to this. For example, the partition plate 25 may be a rectangular plate without a tapered shape. Even in this case, it is possible to suppress the bubbles 8 having the force of colliding with the bottom portion 5c of the storage portion 5 from diffusing toward the first region 5a side.

Further, in the space purification device 2b according to the present embodiment, the tip portion of the flow direction adjusting plate 7f is configured to have a curved surface, but the present invention is not limited to this. For example, the tip portion of the flow direction adjusting plate 7f may be formed of a non-curved rectangular plate. Even in this case, it is possible to suppress the force bubbles 8 colliding with the bottom 5c of the storage section 5 from diffusing toward the third region 5d.

Further, in the space purification device 2b according to the present embodiment, the flow direction adjusting plate 7f is fixedly provided at the tip of the discharge portion 7d, but the present invention is not limited to this. For example, the flow direction adjustment plate 7f may be a movable adjustment plate whose angle relative to the discharge portion 7d can be adjusted according to the required hypochlorous acid gas concentration. By doing so, the concentration of hypochlorous acid gas blown out can be controlled more accurately.

Moreover, the space purification device 2a according to the present embodiment is configured to further include a sensor that measures the concentration of hypochlorous acid in the hypochlorous acid aqueous solution 6, and the hypochlorous acid water The generation unit 29 may be controlled to control the concentration of the hypochlorous acid aqueous solution 6. Specifically, when the concentration of the hypochlorous acid aqueous solution 6 output from the sensor falls below a specified value, the hypochlorous acid water generation unit 29 is operated, and the concentration of the hypochlorous acid aqueous solution 6 output from the sensor falls below the specified value. When the value is reached, the hypochlorous acid water generating section 29 is controlled to be stopped. Thereby, the concentration of the hypochlorous acid aqueous solution 6 can be more reliably controlled within a certain range.

Furthermore, in the space purification devices 2 and 2b according to the present embodiment, the hypochlorous acid aqueous solution 6 has been described as an example of an aqueous solution containing a sterilizing component, but the present invention is not limited to this. As the aqueous solution containing a sterilizing component, for example, an ozone aqueous solution (also referred to as ozone water) obtained by electrolyzing tap water may be used. Also in this case, a certain amount of ozone gas can be included in the air during the process of mixing the ozone aqueous solution and air inside the air supply section. Thereby, the bubbles 8 can contain ozone gas taken in inside the air supply section 7 and ozone gas taken into the bubbles 8 in the process of the bubbles 8 floating in the ozone aqueous solution. As a result, when the bubbles 8 reach the liquid level, the concentration of ozone gas released from the bubbles 8 can be increased. Alternatively, for example, a chlorine dioxide aqueous solution obtained by diluting a highly concentrated chlorine dioxide aqueous solution may be used. The same applies to this case, and in the process of mixing the chlorine dioxide aqueous solution and air inside the air supply section 7, a certain amount of chlorine dioxide gas can be included in the air. Thereby, the bubbles 8 can contain chlorine dioxide gas taken in inside the air supply section 7 and chlorine dioxide gas taken into the bubbles 8 during the process of the bubbles 8 floating in the chlorine dioxide aqueous solution. . As a result, when the bubbles 8 reach the liquid level, the concentration of chlorine dioxide gas released from the bubbles 8 can be increased.

The space purification device according to the present invention can supply a higher concentration of sterilizing component gas (for example, hypochlorous acid gas) to the target space, so it is useful as a device for sterilizing a private room space or the like.

1 Private room space 2 Space purification device 2a Space purification device 2b Space purification device 3 Air 3a Air 3b Air 3c Air 4 Air 5 Storage part 5a First area 5b Second area 5c Bottom 5d Third area 5e Fourth area 6 Hypochlorite Acid aqueous solution 6a Liquid level 7 Air supply part 7a Solution suction port 7b Air suction port 7c Bubble generation part 7d Discharge part 7e Motor part 7f Flow direction adjustment plate 8 Bubbles 9 Air discharge part 10 Eliminator 11 Internal space 12 Air supply part holding part 13 Next Hypochlorous acid aqueous solution supply section 13a Hypochlorous acid aqueous solution tank 13b Hypochlorous acid aqueous solution pump 13c Tube 15 High concentration hypochlorous acid aqueous solution 16 Water level sensor 16a Full water sensor 16b Water shortage sensor 17 Air path section 18 Outside air suction section 19 Blowout section 21 Mixing section 22 Air blowing section 23 Filter section 24 Internal air passage 25 Partition plate 25a First tapered section 25b Second tapered section 26 Chloride supply section 26a Chloride aqueous solution tank 26b Chloride pump 26c Tube 27 Electrode 28 Chloride aqueous solution 29 Next Chlorous acid water generation section

Claims (3)

a storage section that stores an aqueous solution containing a sterilizing component;
an air supply unit that releases air taken in from the outside into the aqueous solution containing the sterilization component as bubbles;
Equipped with
The air supply unit mixes the aqueous solution containing the sterilizing component taken into the storage unit from the storage unit through a solution suction port immersed in the storage unit, and the air taken in from the outside. When releasing the bubbles into the aqueous solution containing the sterilizing component stored in the storage section, the space purification device causes the bubbles to flow in a direction away from a region where the solution suction port is arranged in the storage section. The air bubbles are selectively discharged vertically downward from the air supply section, flow in a direction away from the area where the solution suction port is arranged along the bottom of the storage section, and then The space purification device according to claim 1, which floats toward the surface of the aqueous solution containing bacterial components. comprising a sterilizing component supply section that supplies an aqueous solution containing the sterilizing component to the storage section,
The space purification device according to claim 1 or 2, wherein the sterilization component supply section is installed outside a region through which the bubbles released from the air supply section flow.