JP7198987B1 - space purifier - Google Patents

Abstract

A technique for improving the concentration of a sterilizing component gas contained in air bubbles in a bubbling-type space purifier is provided. A space purification device (2) is provided with a storage part (5) for storing a hypochlorous acid aqueous solution (6) as an aqueous solution containing a sterilizing component, and is immersed in the hypochlorous acid aqueous solution (6). and an air supply part 7 for releasing the air 3a taken in from the hypochlorous acid aqueous solution 6 as bubbles 8. The air supply unit 7 mixes the hypochlorous acid aqueous solution 6 taken inside from the storage unit 5 and the air 3a taken in from the outside (private room space 1), while supplying the hypochlorous acid aqueous solution stored in the storage unit 5. Release air bubbles in 6. [Selection drawing] Fig. 2

Description

TECHNICAL FIELD The present invention relates to a space purifier used for sterilization of a private room space or the like.

Conventionally, as a device to sterilize living spaces and reduce the risk of infectious diseases, air is bubbled into an aqueous solution containing hypochlorous acid (for example, hypochlorous acid water) to generate bubbles and float There is known an air conditioner (space purifying device) that releases hypochlorous acid gas contained in bubbles together with air into a target space (see, for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 2005-305100

However, in the conventional space purifying device using the bubbling method, the gas containing the sterilizing component is taken into the bubble in the process in which the generated air bubbles float toward the liquid surface due to buoyancy. If sufficient gas-liquid contact time cannot be secured, there is a problem that it is difficult to secure the required sterilizing component gas concentration.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-described conventional problems, and to provide a technique for improving the concentration of a sterilizing component gas contained in air bubbles in a bubbling-type space purifier.

In order to achieve this object, the space purifier according to the present invention is provided with a storage part for storing an aqueous solution containing a sterilizing component, and a storage part immersed in the aqueous solution containing the sterilizing component, and the air taken in from the outside is provided. and an air supply unit that discharges as air bubbles into the aqueous solution containing the sterilizing component. The air supply unit has a solution suction port for taking in an aqueous solution containing a sterilizing component from the reservoir, an air suction port for taking in air from the outside, and an aqueous solution containing a sterilizing component and air taken in from the solution suction port. a discharge part for discharging the mixture with the air taken in from the mouth. The air supply unit mixes an aqueous solution containing a sterilizing component taken in from the storage unit through the solution suction port and air taken in from the outside through the air suction port, and supplies the solution to the storage unit through the discharge unit. is to release air bubbles into an aqueous solution containing a retained sterilizing component, thereby achieving the intended purpose.

According to the present invention, it is possible to increase the concentration of the sterilizing component gas contained in the air bubbles in a space cleaning apparatus using a bubbling method.

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

The space purification device according to the present invention is provided with a reservoir for storing an aqueous solution containing a sterilizing component, and a storage part that is immersed in the aqueous solution containing the sterilizing component. an air supply that discharges to the The air supply unit releases air bubbles into the aqueous solution containing the sterilizing component stored in the storing unit while mixing the aqueous solution containing the sterilizing component taken inside from the reservoir and the air taken in from the outside.

According to such a configuration, a certain amount of sterilizing component gas can be contained in the air in the process of mixing the air and the aqueous solution containing the sterilizing component inside the air supply section. As a result, the air bubbles can contain the sterilizing component gas taken inside the air supply unit and the sterilizing component gas taken into the bubbles in the process in which the bubbles float 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 increase the concentration of the sterilizing component gas contained in the bubbles, and can supply the sterilizing component gas with a higher concentration to the outside.

Further, in the space purifier according to the present invention, the air supply unit includes a solution suction port that takes in an aqueous solution containing a sterilizing component from the reservoir, an air suction port that takes in air from the outside, and a solution suction port. A discharge part for discharging a mixed state of the aqueous solution containing the taken-in sterilizing component and the air taken in from the air suction port is preferably provided, and the discharge part preferably discharges air bubbles downward in the vertical direction. As a result, the bubbles released from the discharge part descend at least vertically downward in the aqueous solution containing the sterilizing component, and then rise toward the liquid surface, so that the bubbles are in the aqueous solution containing the sterilizing component. The time to circulate inside becomes longer, and the 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 purifier according to the present invention, the reservoir has a partition plate extending vertically upward from the bottom of the reservoir, and the partition plate is provided with the solution suction port. It is preferable to divide the reservoir into a first area that takes in an aqueous solution containing a sterilizing component and a second area in which the discharge part is arranged and in which bubbles discharged from the discharge part flow. Thus, the partition plate can prevent the air bubbles discharged from the ejection part in the second region from being sucked into the solution suction port in the first region. As a result, it is possible to suppress the generation of abnormal noise caused by the intake of the aqueous solution containing the sterilizing component containing air bubbles from the solution suction port. In other words, the space purification device can supply a higher-concentration 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 the discharge part discharges air bubbles so as to blow 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 circulate in a substantially horizontal direction, so that the air bubbles circulate in the aqueous solution containing the sterilizing component. The longer the time, the more the sterilizing component gas taken into the bubbles can be increased.

Further, in the space purifier according to the present invention, the air supply section further includes a flow direction adjusting plate provided at the tip of the discharge section for adjusting the flow direction of the air bubbles discharged downward in the vertical direction from the discharge section. It is preferable that the flow direction adjusting plate changes the flow direction of air bubbles in the direction of the region opposite to the region where the solution suction port is arranged with the flow direction adjusting plate interposed therebetween. 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, thereby suppressing the suction of the air bubbles into the solution suction port. can be done. As a result, it is possible to suppress the generation of abnormal noise caused by the intake of the aqueous solution containing the sterilizing component containing air bubbles from the solution suction port. In other words, the space purification device can supply a higher-concentration sterilization component gas to the outside while suppressing noise.

Further, the space purification apparatus according to the present invention may include a sterilized water generator that adjusts the aqueous solution containing the sterilizing component to a predetermined concentration. By doing so, it becomes easy to control the concentration of the aqueous solution containing the sterilizing component, so that the concentration of the aqueous solution containing the sterilizing component can be stabilized. In other words, the space purifier can stably release a higher-concentration sterilizing component gas to the outside.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. It should be noted that the following embodiment is an example that embodies the present invention, and does not limit the technical scope of the present invention. In addition, each drawing described in the embodiment is a schematic drawing, and the ratio of the size and thickness of each component in each drawing does not necessarily reflect the actual dimensional ratio. .

(Embodiment 1)
First, with reference to FIGS. 1 to 3, the outline of the space cleaning device 2 according to the first embodiment will be described. FIG. 1 is a schematic side view showing an installation example of a space purification device 2 according to Embodiment 1 of the present invention in a private room space 1. FIG. 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 similarly takes in the air 3 ( It is mixed with the air 3b) shown in FIG. 2 and discharged into the private room space 1 as the 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. 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.

A private room space 1 is a space used by a user in daily life, and is composed of structures such as walls and doors. A table or a chair may be installed in the private room space 1 . Further, an air conditioner or the like for air conditioning (cooling, heating) in the private room space 1 may be installed.

Air 3 is the air taken into the space purifier 2 from the private room space 1 . Arrows in FIG. 1 indicate the main flow of air 3 . As shown in FIG. 2, the air 3 is separated into air 3a and air 3b after being introduced into the space cleaning device 2. As shown in FIG. Although details will be described later, the air 3a is air that is sucked into the air supply unit 7 and to which hypochlorous acid (hypochlorous acid gas) is added, and the air 3b is not sucked into the air supply unit 7 and is inside the air. It is the air that passes through the air passage 24 and is mixed with the air 3c added with hypochlorous acid (hypochlorous acid gas) in the mixing section 21 .

The air 4 is the air blown out from the space purification device 2 into the private room space 1 . Arrows in FIG. 1 indicate the main flow of air 4 . Although the 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 described.

As shown in FIG. 2, the space purification device 2 has an air passage portion 17, a storage portion 5, an air supply portion 7, an air release portion 9, an air supply portion holding portion 12, and a hypochlorous acid aqueous solution supply portion 13. Configured.

The air passage portion 17 mixes the air 3c containing hypochlorous acid gas supplied from the air discharge portion 9 and the air 3b of the air 3 taken in from the outside air suction portion 18 that has passed through the internal air passage 24. It is a member that discharges as air 4 . The air passage portion 17 is installed on the upper surface of the air discharge portion 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 3 c from the air discharge portion 9 is supplied into the air passage portion 17 . The air passage portion 17 can also be said to be part of the housing that constitutes the outer frame of the space purification device 2 .

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

The external 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 (private room space 1 ) into the interior of the space purification device 2 . The outside air intake portion 18 is configured by a plurality of circular holes or a plurality of slits formed in the upper surface of the air passage portion 17 .

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

The external air intake portion 18 and the blowout portion 19 are connected to each other by an internal air passage 24 of the air passage portion 17 . An air release portion 9 is connected to the internal air passage 24 so as to communicate therewith.

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

The air blower 22 is a blower fan for circulating air in the air passage 17 and is arranged in the internal air passage 24 of the air passage 17 . By operating the air blowing unit 22, the air 3 is taken in from the outside air intake unit 18, and the air 3b that has passed through the internal air passage 24 out of the air 3 taken in from the outside air intake unit 18 by the mixing unit 21 It can be mixed with the supplied air 3c and blown out as the air 4 from the blowing part 19. - 特許庁

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

The storage part 5 is a container that stores the hypochlorous acid aqueous solution 6 therein. The reservoir 5 has a square prism shape, and the outer dimensions of the reservoir 5 are, for example, 200 mm wide, 100 mm deep, and 115 mm high. Note that the reservoir 5 can also be said to be part of a housing that constitutes the outer frame of the space purification device 2 . Inside the storage unit 5, an air supply unit 7 is installed in a state of being immersed in the stored hypochlorous acid aqueous solution 6, and a water level sensor 16 (a full water sensor 16a and a water shortage sensor 16b) is installed. An opening (not shown) for communicating with the air release portion 9 is provided on the upper surface of the storage portion 5, and the air release portion 9 is installed so as to cover the opening. An internal space 11 is formed in the upper portion of the storage portion 5 between the liquid surface 6 a of the hypochlorous acid aqueous solution 6 to be stored and the lower surface of the air release portion 9 . A hypochlorous acid aqueous solution supply unit 13 is installed on the side surface of the storage unit 5 . Although not shown, the reservoir 5 is provided with an opening for supplying city water, so that city water can be supplied directly when the reservoir 5 experiences a water shortage.

More specifically, the reservoir 5 has a partition plate 25 extending vertically upward from the bottom 5c of the reservoir 5 . Although the details will be described later, the partition plate 25 has a first region 5a in which the air release portion 9 takes in the hypochlorous acid aqueous solution 6, and a second region 5b in which the bubbles 8 released from the air release portion 9 flow. It is a member that divides the storage section 5 .

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

The second region 5b is a region in the reservoir 5 through which the air bubbles 8 released from the air supply portion 7 flow. More specifically, in the second region 5b, a discharge portion 7d of the air supply portion 7, which will be described later, is arranged, and the bubbles 8 discharged from the discharge portion 7d float toward the liquid surface 6a of the hypochlorous acid aqueous solution 6. This is an area through which the ink actually flows, and is also called an “ejection area”.

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

The partition plate 25 is a protrusion extending vertically upward from the bottom portion 5c of the storage portion 5 in order to separate the first region 5a and the second region 5b. The partition plate 25 can also be said to be a projection that separates the area where the solution suction port 7a is installed and the area where the discharge part 7d is installed. As shown in FIG. 3, the partition plate 25 is installed extending from one side surface of the reservoir 5 to the opposite side surface. In addition, the partition plate 25 does not completely separate the two regions (the first region 5a and the second region 5b), but the hypochlorous acid aqueous solution 6 is separated between the two regions on the upper side of the reservoir 5. It is possible to move.

The partition plate 25 has a forward tapered shape (a first tapered portion 25a and a second tapered portion 25b) in which the protrusion width narrows upward from the bottom portion 5c side of the storage portion 5 in the vertical direction. The first tapered portion 25a refers to the tapered shape of the partition plate 25 on the first region 5a side, and the second tapered portion 25b refers to the tapered shape of the partition plate 25 on the second region 5b side.

Both the first tapered portion 25a and the second tapered portion 25b are curved in the direction of the bottom portion 5c from the top of the partition plate 25 to the bottom portion 5c. Although the details will be described later, in the second tapered portion 25b, the air bubbles 8 discharged from the discharge portion 7d are made to follow the curved tapered shape, and the air bubbles 8 are circulated in the opposite direction to the first region 5a. there is

The internal space 11 is an air region generated above the liquid surface 6 a of the hypochlorous acid aqueous solution 6 in the reservoir 5 , and is formed over the entire surface of the reservoir 5 . The internal space 11 is formed above the liquid surface 6 a of the hypochlorous acid aqueous solution 6 even when the reservoir 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, which becomes air 3c containing hypochlorous acid gas.

The hypochlorous acid aqueous solution 6 is an aqueous solution (also referred to as hypochlorous acid water) containing hypochlorous acid 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 while the bubbles 8 supplied from the air supply unit 7 described later circulate in the liquid due to buoyancy. have a role. Therefore, the amount of hypochlorous acid contained in the bubbles 8 can be increased or decreased by increasing or decreasing the concentration of the hypochlorous acid aqueous solution 6 . In addition, by setting the hydrogen ion concentration (pH) of the hypochlorous acid aqueous solution 6 to about 5 to 7, the hypochlorous acid is easily vaporized from the hypochlorous acid aqueous solution 6, and the hypochlorous acid contained in the bubbles 8. The amount of acid can be increased. In addition, by increasing the distance that the bubbles 8 rise due to buoyancy (the distance that the bubbles 8 circulate in 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 contained in the can be increased. For these reasons, in the present 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 based on the outer diameter size of the reservoir 5 described above, The capacity of the hypochlorous acid aqueous solution 6 stored inside is about 2 L (capacity when full). 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 the conventional vaporization type space purifier. Further, the hypochlorous acid aqueous solution 6 corresponds to the "aqueous solution containing the sterilizing component" in the claims.

The air supply unit 7 is a member that draws in air 3a from the private room space 1 and discharges the sucked air 3a into the hypochlorous acid aqueous solution 6 as air bubbles 8 . In the present embodiment, the air supply unit 7 mixes the hypochlorous acid aqueous solution 6 taken inside from the storage unit 5 and the air 3a taken in from the outside (private room space 1), while the storage unit 5 stores It is a pump that releases air bubbles 8 into the hypochlorous acid aqueous solution 6. The air supply portion 7 is installed in the storage portion 5 by being fixed to the storage portion 5 by the air supply portion holding portion 12 . The air supply unit 7 is suspended from the top of the storage unit 5 by the air supply unit holding unit 12 vertically above the partition plate 25 , and most of the members are 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 part 7 is suspended from the upper part of the storage part 5 , the solution suction port 7 a and the air suction port 7 b are positioned in the first region 5 a of the storage part 5 , and the air suction port 7 b is positioned in the second region 5 b of the storage part 5 . It is installed so that the air bubble generation part 7c, the discharge part 7d, and the motor part 7e are positioned.

The solution suction port 7 a is a cylindrical suction port for sucking the hypochlorous acid aqueous solution 6 in the reservoir 5 . The solution suction port 7a is located in the first region 5a of the reservoir 5, is substantially horizontal with respect to the bottom 5c of the reservoir 5, and is located on the side of the reservoir 5 in the direction opposite to the second region 5b. is installed facing the The solution suction port 7a is communicated with the bubble generator 7c. The solution suction port 7a sucks the hypochlorous acid aqueous solution 6 from the storage section 5 by operating the motor section 7e, and feeds 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 draws in the air 3a inside 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 up to the internal air passage 24 vertically upward. The air suction port 7b is, for example, a resin tube. The air suction port 7b sucks the air 3a from the internal air passage 24 by operating the motor part 7e, and sends the sucked air 3a to 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 and upstream of the mixing section 21 in the internal air passage 24 . As a result, the air suction port 7b can take in the air 3a with little dirt after passing through the filter part 23 and feed it into the hypochlorous acid aqueous solution 6. Contamination of the chloric acid aqueous solution 6 can be prevented.

The air bubble generator 7c is a member that stirs and mixes the hypochlorous acid aqueous solution 6 containing the air 3a that flows in from the solution suction port 7a. The bubble generator 7c communicates between the solution inlet 7a and the outlet 7d, and the operation of the motor 7e causes the hypochlorous acid aqueous solution 6 (including the air 3a) flowing in from the solution inlet 7a. A chlorous acid aqueous solution 6) is delivered to the discharge portion 7d. At this time, the bubble generating unit 7c internally agitates and mixes the hypochlorous acid aqueous solution 6 and the air 3a, refines the air 3a into bubbles 8, and discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8. Send to section 7d. It can also be said that the air bubble generating part 7c mixes the hypochlorous acid aqueous solution 6 and the air 3a inside and generates the air bubbles 8 by miniaturizing the air 3a. In the process of stirring and mixing inside the air bubble generator 7c, the air 3a (bubbles 8) contains hypochlorous acid gas.

The discharge part 7 d is a discharge part that discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8 generated by the bubble generation part 7 c into the hypochlorous acid aqueous solution 6 in the storage part 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. Then, the discharge part 7 d discharges the hypochlorous acid aqueous solution 6 containing the bubbles 8 toward the bottom part 5 c of the storage part 5 . Specifically, the discharge part 7 d discharges the hypochlorous acid aqueous solution 6 containing the air bubbles 8 toward the second tapered part 25 b of the partition plate 25 provided on the bottom part 5 c of the storage part 5 . It should be noted that although the ejection part 7d is described as "releasing the hypochlorous acid aqueous solution 6 containing the air bubbles 8", it may be read as "releasing the air bubbles 8".

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

The air supply unit 7 is configured as described above.

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

Specifically, in the air supply unit 7, if the supply amount of the air 3a to the hypochlorous acid aqueous solution 6 increases, the amount (number of generation) of the bubbles 8 generated correspondingly increases, and the air discharge unit 9 Hypochlorous acid gas contained in the discharged air 4 can be increased. In addition, in the air supply unit 7, by lengthening the stirring and mixing time in the bubble generation unit 7c, the contact time between the hypochlorous acid aqueous solution 6 and the air 3a is lengthened, and finally generated bubbles Hypochlorous acid gas contained in 8 can be increased. In addition, in the air supply unit 7, the size (diameter) of the bubbles 8 released to the hypochlorous acid aqueous solution 6 is reduced to reduce the rising speed of the bubbles 8 when floating, and the hypochlorous acid aqueous solution 6 is discharged. and the air bubble 8 can be increased. Furthermore, the contact area between the hypochlorous acid aqueous solution 6 and the bubbles 8 flowing in the liquid can be increased compared to the case where the size (diameter) of the bubbles 8 is large. As a result, the amount of hypochlorous acid taken into the bubbles 8 in the process of floating of the bubbles 8 flowing through the hypochlorous acid aqueous solution 6 increases, and the hypochlorous acid contained in the air 4 released from the air release part 9 Chlorate 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 through the air suction port 7b. Also, the size (diameter) of the air bubble 8 can be controlled by the size of the diameter of the air suction port 7b (and the amount of air suctioned by the air suction port 7b). Further, the reach depth of the air bubbles 8 discharged from the discharge portion 7d can be controlled by the amount of the hypochlorous acid aqueous solution 6 taken in by the air supply portion 7. FIG. Based on these, in the present 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 m ³ /h, and the size of the bubbles 8 generated at the solution suction port 7a is (diameter) is about 1 mm to 2 mm, and the amount of the hypochlorous acid aqueous solution 6 taken in by the air supply unit 7 is 5 L/min.

The air bubbles 8 are fine bubbles of the air 3a sucked from the private room space 1 by the air supply unit 7 (air suction port 7b), and the air is confined by the hypochlorous acid aqueous solution 6. It's becoming The air bubbles 8 released from the air supply unit 7 float while taking in the hypochlorous acid (and moisture) contained in the hypochlorous acid aqueous solution 6 into the internal air. After that, when the bubbles 8 float up to the liquid surface 6a of the hypochlorous acid aqueous solution 6, they burst and disappear. Then, the air in the air bubbles 8 is mixed with the air in the internal space 11 together with the hypochlorous acid (and moisture) contained in the air. After that, the air (air containing hypochlorous acid) in the internal space 11 is supplied from the air release portion 9 to the mixing portion 21 as the air 3c.

The air release portion 9 is a member that allows the storage portion 5 and the air passage portion 17 to communicate with each other, and is installed between the upper surface of the storage portion 5 and the lower surface of the air passage portion 17 . Air discharge section 9 includes eliminator 10 . The air release portion 9 supplies air containing hypochlorous acid (air in the internal space 11) introduced from an opening (not shown) of the storage portion 5 to a supply port (not shown) of the air release portion 9. , the air 3c is led out to the mixing section 21 of the air passage section 17 through the eliminator 10. As shown in FIG.

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

The air supply portion holding portion 12 is a plate-like member that fixes the air supply portion 7 inside the storage portion 5 . The air supply section holding section 12 is fixed to suspend the air supply section 7 below the eliminator 10 .

The hypochlorous acid aqueous solution supply unit 13 is a member that supplies the high-concentration hypochlorous acid aqueous solution 15 to the storage unit 5 . The hypochlorous acid aqueous solution supply unit 13 is installed on the side surface of the storage unit 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 unit 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 in which a high-concentration hypochlorous acid aqueous solution 15 having a predetermined concentration is stored. For the hypochlorous acid aqueous solution tank 13a, for example, a bag-like deformable pouch pack container that seals and accommodates the high-concentration hypochlorous acid aqueous solution 15 as the contents is used. The hypochlorous acid aqueous solution tank 13a can supply the high-concentration hypochlorous acid aqueous solution 15 to the reservoir 5 through the tube 13c by the operation of the hypochlorous acid aqueous solution pump 13b.

The hypochlorous acid aqueous solution pump 13b is a member for sending the high-concentration hypochlorous acid aqueous solution 15 from the hypochlorous acid aqueous solution tank 13a to the storage unit 5 in response to an output signal from a control unit (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 reservoir 5 via the hypochlorous acid aqueous solution pump 13b. It is a member for circulating the high-concentration hypochlorous acid aqueous solution 15 from the chloric acid aqueous solution tank 13 a to the reservoir 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 unit 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 undiluted solution. Since the high-concentration hypochlorous acid aqueous solution 15 is diluted in the reservoir 5 to adjust the hypochlorous acid aqueous solution 6 to a predetermined concentration, it is desirable that the concentration is several times higher than the hypochlorous acid aqueous solution 6 . 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 unit 13 is configured as described above.

Then, the hypochlorous acid aqueous solution supply unit 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 unit through the tube 13c. 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 dry water sensor 16b) will be described.

The water level sensor 16 is a member that detects the water level of the hypochlorous acid aqueous solution 6 stored inside the storage part 5 . The water level sensor 16 has a full water sensor 16a and a water shortage 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 part 5 is full (full water level). On the other hand, the water shortage sensor 16b detects that the water level of the hypochlorous acid aqueous solution 6 stored in the storage unit 5 is in a water shortage state (water shortage level). The water shortage sensor 16 b is provided at a position higher than the solution suction port 7 a of the air supply unit 7 . Prevents noise or anomalies from occurring. In this embodiment, the water level is set to 1.5 L, which is 25% less than the capacity of the hypochlorous acid aqueous solution 6 at the full water level (capacity at full water level) of 2 L.

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 described.

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

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

In the space purifier 2, when the air blowing unit 22 operates, the air 3 in the private room space 1 is sucked into the interior (air passage unit 17) from the outside air intake unit 18 as a basic air flow. The air 3 circulates through the internal air passage 24 and is discharged as the air 4 from the blowing part 19 into the private room space 1 .

On the other hand, when the motor portion 7e of the air supply portion 7 starts operating, part of the air 3 in 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 from the air suction port 7b (the other end of the air suction port 7b) and sent to the hypochlorous acid aqueous solution 6 sucked from 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 stirred and mixed in the bubble generating section 7c. The air 3a in the air bubble generating portion 7c is atomized in the process of stirring and mixing with the hypochlorous acid aqueous solution 6. Then, the atomized air 3a is sent as air bubbles 8 together with the hypochlorous acid aqueous solution 6 into the hypochlorous acid aqueous solution 6 in the reservoir 5 from the discharge portion 7d.

Since the bubbles 8 discharged from the discharge part 7d are discharged toward the bottom part 5c of the storage part 5 located vertically downward, they descend in the hypochlorous acid aqueous solution 6 in the direction of the arrow F1. With the momentum of colliding with the second tapered portion 25b of the partition plate 25, the air bubbles 8 that have descended change their flow direction along the second tapered portion 25b, and flow along the bottom portion 5c of the storage portion 5 in a substantially horizontal direction ( It circulates in 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, so they 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 the 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 release portion 9 as air 3c. As described above, the air 3c contains hypochlorous acid gas.

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

The air 3c (air 3c containing hypochlorous acid gas) led out to the mixing unit 21 is mixed with the air 3b flowing through the internal air passage 24, and the air 4 containing hypochlorous acid gas is discharged from the blowing unit 19 into the compartment. It is released into space 1.

Then, the released air 4 (air 4 containing hypochlorous acid gas) 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 the present embodiment, the air 3a and the hypochlorous acid aqueous solution 6 are stirred and mixed in the air bubble generation unit 7c, and the air bubbles 8 move in the directions of the arrow F1 and the arrow F2. By lengthening the residence time in the hypochlorous acid aqueous solution 6, the concentration of hypochlorous acid gas contained in the bubbles 8 can be increased.

As described above, according to the space purification device 2 according to Embodiment 1, the following effects can be obtained.

(1) The space purifying device 2 is provided with a reservoir 5 that stores the hypochlorous acid aqueous solution 6, and is immersed in the hypochlorous acid aqueous solution 6, and the air 3a taken in from the outside (private room space 1) is and an air supply unit 7 that discharges into the hypochlorous acid aqueous solution 6 as. The air supply unit 7 mixes the hypochlorous acid aqueous solution 6 taken inside from the storage unit 5 and the air 3a taken in from the outside (private room space 1), while supplying the hypochlorous acid aqueous solution stored in the storage unit 5. 6 to release air bubbles.

According to this configuration, in the process of mixing the hypochlorous acid aqueous solution 6 and the air 3a inside the air supply unit 7, the air 3a can contain a certain amount of hypochlorous acid gas. As a result, the bubbles 8 contain hypochlorous acid gas taken inside the air supply unit 7 and hypochlorous acid gas taken into the bubbles 8 during the process in which the bubbles 8 float in the hypochlorous acid aqueous solution 6. and can be included. As a result, when the bubbles 8 reach the liquid surface 6a, the concentration of hypochlorous acid gas released from the bubbles 8 can be increased. That is, the space purifier 2 can increase the concentration of hypochlorous acid gas contained in the bubbles 8, and can supply hypochlorous acid gas of higher concentration to the outside (private room space 1).

(2) In the space purification device 2, the air supply unit 7 includes a solution suction port 7a that takes in the hypochlorous acid aqueous solution 6 from the storage unit 5, and air that takes in the air 3a from the outside (air passage 17). A suction port 7b, and a discharge portion 7d for discharging 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, and the discharge portion 7d includes air bubbles. is emitted downward in the vertical direction. As a result, the bubbles 8 released from the discharge part 7d descend at least vertically downward in the hypochlorous acid aqueous solution 6, and then rise toward the liquid surface 6a. The time of circulation in 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, the concentration of hypochlorous acid gas released from the bubbles 8 can be further increased when the bubbles 8 reach the liquid surface 6a.

(3) In the space purifier 2, the reservoir 5 has a partition plate 25 extending vertically upward from the bottom 5c of the reservoir 5, and the partition plate 25 is provided with the solution suction port 7a. , the storage portion 5 is provided in a first region 5a that takes in the hypochlorous acid aqueous solution 6 from the solution suction port 7a, and a second region 5b in which the discharge portion 7d is arranged and the bubbles 8 discharged from the discharge portion 7d flow. made to distinguish. As a result, the partition plate 25 can prevent the air bubbles 8 discharged from the ejection portion 7d in the second region 5b from being sucked into the solution suction port 7a of the first region 5a. As a result, the generation of abnormal noise due to intake of the hypochlorous acid aqueous solution 6 containing the air bubbles 8 from the solution suction port 7a is suppressed. That is, the space purification device 2 can supply hypochlorous acid gas of 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 to have a forward tapered shape (second tapered portion 25b) on the side of the second region 5b, and the discharge portion 7d blows air bubbles to 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 (the second tapered portion 25b) and flow in a substantially horizontal direction. The time for circulating in the hypochlorous acid aqueous solution 6 is further lengthened, and the hypochlorous acid gas taken into the bubbles 8 can be further increased.

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

A space purifying device 2a according to Embodiment 2 of the present invention differs from Embodiment 1 in that a hypochlorous acid water generating section 29 is provided instead of the hypochlorous acid aqueous solution supply section 13 . Other configurations of the space purification device 2a are the same as those of the space purification device 2 according to the first embodiment. In the following, repetitive explanations of the contents already explained in the first embodiment will be omitted as appropriate, and differences from the first embodiment will be mainly explained.

As shown in FIG. 4 , the space purification device 2 a includes a hypochlorous acid water generator 29 as a means for adjusting the concentration of the hypochlorous acid aqueous solution 6 . The hypochlorous acid water generator 29 has a chloride supplier 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 with the electrode 27 to generate hypochlorous acid, and the hypochlorous acid stored in the storage unit 5 The acid aqueous solution 6 is adjusted to a predetermined concentration. The hypochlorous acid water generator 29 corresponds to the "disinfected water generator" 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 the container that constitutes the storage unit 5. configured to More specifically, the chloride supply unit 26 comprises a chloride aqueous solution tank 26a, a chloride pump 26b, and a tube 26c.

The chloride aqueous solution tank 26a is a container in which a chloride aqueous solution 28 having a predetermined concentration is stored. For the chloride aqueous solution tank 26a, for example, a bag-like deformable pouch pack container that seals and accommodates the chloride aqueous solution 28 as the content is used. The chloride aqueous solution tank 26a can supply the chloride aqueous solution 28 to the reservoir 5 through the tube 26c by the 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 chloride ions even in a small amount. For example, sodium chloride, calcium chloride, or An aqueous solution in which magnesium chloride or the like is dissolved can be mentioned. Also, potassium phosphate or the like may be added to adjust the pH of the aqueous solution. In this embodiment, an aqueous solution obtained by adding potassium phosphate to an aqueous sodium chloride solution (salt water) is used as the aqueous chloride solution 28 . Moreover, it is desirable that the chloride aqueous solution 28 has a high concentration of sodium chloride. By using the high-concentration chloride aqueous solution 28, chloride (chloride aqueous solution) can be supplied to the hypochlorous acid aqueous solution 6 without greatly changing the water amount of the hypochlorous acid aqueous solution 6.

The chloride pump 26b is a member for sending the chloride aqueous solution 28 from the chloride aqueous solution tank 26a to the reservoir 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 that constitutes the reservoir 5 via a chloride pump 26b. It is a member for circulating the aqueous solution 28 .

The chloride supply unit 26 is configured as described above.

Then, the chloride supply unit 26 operates the chloride pump 26b to supply 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. As a result, the chloride aqueous solution 28 is mixed with the hypochlorous acid aqueous solution 6 stored in the storage section 5 .

Electrode 27 is a member for electrolyzing chloride aqueous solution 28, which is an aqueous solution containing chloride ions. The electrode 27 is installed, for example, in a state of being submerged in the hypochlorous acid aqueous solution 6 at the bottom portion 5c of the storage portion 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. Titanium, tantalum, nickel, stainless steel, or the like can be used for the conductive substrate, but titanium is preferred because it has high corrosion resistance to hypochlorous acid. Iridium, a platinum group metal, or the like, for example, is used as the catalyst contained in the catalyst coating. Thereby, the electrolysis reaction at the electrode 27 can be activated.

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

Next, the operation flow of the hypochlorous acid water generator 29 will be described.

The hypochlorous acid water generating unit 29 supplies hypochlorous acid 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 generating unit 29, supply of a predetermined amount of the chloride aqueous solution 28 by the chloride supply unit 26 and electrolysis by the electrode 27 are performed at regular intervals.

In the hypochlorous acid water generating unit 29, first, after a certain period of time has passed, the chloride pump 26b feeds a predetermined amount of the chloride aqueous solution 28 from the chloride aqueous solution tank 26a to the storage unit 5, and the hypochlorous acid aqueous solution 6 An aqueous chloride solution 28 is supplied and mixed therewith. Then, in the hypochlorous acid water generating unit 29, an electric current is passed through the electrode 27 to electrolyze the chloride mixed in the hypochlorous acid aqueous solution 6, that is, sodium chloride, and the sodium chloride supplied as the chloride aqueous solution 28. Generates hypochlorous acid corresponding to the amount of As a result, a state equivalent to that hypochlorous acid is supplied to the hypochlorous acid aqueous solution 6 is obtained. That is, the concentration of the hypochlorous acid aqueous solution 6 (concentration of hypochlorous acid) is adjusted by the hypochlorous acid water generation unit 29 . At this time, by adjusting the amount (supply amount) of the chloride aqueous solution 28 supplied to the hypochlorous acid aqueous solution 6 in the operation of the hypochlorous acid water generating unit 29, You can control the amount of chlorous acid. By electrolyzing sodium chloride, the pH of the hypochlorous acid aqueous solution 6 rises, but is neutralized by potassium phosphate contained in the chloride aqueous solution 28, and is 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 obtained.

(5) The space purification device 2a is configured to include a hypochlorous acid water generating unit 29 that adjusts the hypochlorous acid aqueous solution 6 to a predetermined concentration. With 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. That is, the space purifying 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 Embodiment 3 will be described with reference to FIGS. 5 and 6. FIG. FIG. 5 is a schematic side view showing the configuration of a space cleaning 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 Embodiment 3 of the present invention, bubbles 8 are selectively generated on the side of the fourth region 5e (region corresponding to the side of the second region 5b in Embodiment 1) without providing the partition plate 25. It is different from the first embodiment in that a flow direction adjustment plate 7f is provided at the tip of the discharge portion 7d so as to allow flow. Other configurations of the space purification device 2b are the same as those of the space purification device 2 according to the first embodiment. In the following, repetitive explanations of the contents already explained in the first embodiment will be omitted as appropriate, and differences from the first embodiment will be mainly explained.

As shown in FIG. 5, in the space purifier 2b, the air supply section 7 includes a flow direction adjustment plate 7f that extends vertically downward from the tip of the discharge section 7d and changes the flow direction of the air bubbles 8. As shown in FIG. Although the details will be described later, the flow direction adjusting plate 7f controls the flow direction of the air bubbles 8 discharged vertically downward from the discharge portion 7d in 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. The flow direction adjusting plate 7f has the same role as the partition plate 25 of the space purifier 2, and the solution suction port 7a takes in the hypochlorous acid aqueous solution 6 from the third region 5d and discharges from the discharge portion 7d. It can also be said that the reservoir 5 is divided into the fourth region 5e through which the trapped bubbles 8 mainly flow.

The third region 5 d is a region in which the hypochlorous acid aqueous solution 6 is sucked by the air supply portion 7 within the storage portion 5 . More specifically, the third region 5d is a region in which the solution suction port 7a of the air supply unit 7 is arranged and the hypochlorous acid aqueous solution 6 is taken in from the solution suction port 7a. corresponds to

The fourth region 5e is a region in the reservoir 5 through which the air bubbles 8 released from the air supply portion 7 mainly flow. More specifically, in the fourth region 5e, the ejection portion 7d of the air supply portion 7 is arranged, and when the bubbles 8 released from the ejection portion 7d float toward the liquid surface 6a of the hypochlorous acid aqueous solution 6, This is a circulating area and corresponds to the second area 5b in the space purification device 2. FIG.

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

Specifically, the flow direction adjusting plate 7f is attached extending downward in the vertical direction from the lower end of the bubble generating portion 7c along the side surface of the discharge portion 7d on the side of the solution suction port 7a. The flow direction adjusting plate 7f further extends straight downward in the vertical direction from the tip (lower end) of the discharge portion 7d. 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 portion of the flow direction adjusting plate 7f. Further, as shown in FIG. 6, the flow direction adjusting plate 7f is installed extending from one side surface of the discharge portion 7d to the opposite side surface thereof. In other words, the flow direction adjusting plate 7f is configured to correspond to the opening width of the discharge portion 7d. Bubbles 8 (hypochlorous acid aqueous solution 6 containing bubbles 8) discharged vertically downward from the discharge portion 7d are sprayed onto the curved surface of the flow direction adjusting plate 7f.

Next, referring to FIG. 5, the flow of air bubbles 8 in the space cleaning device 2b will be described.

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

The bubbles 8 flowing in the substantially horizontal direction float toward the liquid surface 6a under the influence of buoyancy, as indicated by an 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 release portion 9 as air 3c. As described above, the air 3c contains hypochlorous acid gas.

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

The air 3c (air 3c containing hypochlorous acid gas) led out to the mixing unit 21 is mixed with the air 3b flowing through the internal air passage 24, and the air 4 containing hypochlorous acid gas is discharged from the blowing unit 19 into the compartment. It is released into space 1.

Then, the released air 4 (air 4 containing hypochlorous acid gas) 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 the present embodiment, the air 3a and the hypochlorous acid aqueous solution 6 are stirred and mixed in the air bubble generator 7c, and the air bubbles 8 move in the directions of the arrows F4 and F5. By lengthening the residence time in the hypochlorous acid aqueous solution 6, the concentration of 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) and (2) described above, the following effects can be obtained.

(6) In the space purification device 2b, the air supply part 7 is provided at the tip of the discharge part 7d, and adjusts the flow direction of the air bubbles 8 discharged downward in the vertical direction from the discharge part 7d. A flow direction adjusting plate 7f is provided. The flow direction adjusting plate 7f changes the flow direction of the air bubbles 8 toward the region (fourth region 5e) on the opposite side of the flow direction adjusting plate 7f from the region (third region 5d) where the solution suction port 7a is arranged. It was configured to As a result, the air bubbles 8 discharged from the discharge portion 7d in the fourth region 5e flow in the direction of the fourth region 5e opposite to the third region 5d where the solution suction port 7a is arranged by the flow direction adjusting plate 7f. , the air bubbles 8 can be suppressed from being sucked into the solution suction port 7a of the third region 5d. As a result, the generation of abnormal noise due to intake of the hypochlorous acid aqueous solution 6 containing the air bubbles 8 from the solution suction port 7a is suppressed. That is, the space purification device 2b can supply hypochlorous acid gas of higher concentration to the outside while suppressing noise.

Although the present invention has been described above based on the embodiments, the present invention is by no means limited to the above-described embodiments, and various modifications and improvements are possible without departing from the scope of the present invention. can be easily guessed.

In the space purifiers 2 and 2a according to the present embodiment, the partition plate 25 is provided at the bottom portion 5c of the storage portion 5, and in the space purifier 2b, the flow direction adjusting plate 7f is provided at the tip of the discharge portion 7d. However, not limited to this, for example, instead of providing the partition plate 25 or the flow direction adjusting plate 7f, the ejection portion 7d itself may be configured so that the air bubbles 8 selectively flow to the second region 5b side or the fourth region 5e side. You may change the blowing direction. Specifically, the direction in which the bubbles 8 (hypochlorous acid aqueous solution 6 containing the bubbles 8) are blown out from the discharge portion 7d is not vertically downward, but obliquely 45 degrees to the vertical direction (first region 5a or third region It may be in a direction of an oblique angle of 45 degrees opposite to the region 5d. Even in this way, it is possible to prevent the air bubbles 8 from being sucked into the solution suction port 7a. In addition, the time during which the bubbles 8 flowing in the hypochlorous acid aqueous solution 6 are in contact with the hypochlorous acid aqueous solution 6 can be lengthened.

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 configuration is not limited to this. For example, the partition plate 25 may be composed of a rectangular plate without a tapered shape. Even in this way, it is possible to suppress the diffusion of the bubbles 8 that collide with the bottom portion 5c of the storage portion 5 toward the first region 5a.

Further, in the space purifying device 2b according to the present embodiment, the tip portion of the flow direction adjusting plate 7f is configured with a curved surface, but the present invention is not limited to this. For example, the leading end portion of the flow direction adjusting plate 7f may be configured with a rectangular plate that is not curved. Even in this way, it is possible to prevent the momentum bubbles 8 colliding with the bottom portion 5c of the storage portion 5 from diffusing toward the third region 5d.

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

Further, the space purification device 2a according to the present embodiment is configured to further include a sensor for measuring 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 by the sensor falls below a specified value, the hypochlorous acid water generating unit 29 is operated so that the concentration of the hypochlorous acid aqueous solution 6 output by the sensor is specified. When the value is reached, the hypochlorous acid water generating unit 29 is controlled to stop. As a result, the concentration of the hypochlorous acid aqueous solution 6 can be more reliably controlled within a certain range.

Further, 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 it is not limited to this. As the aqueous solution containing the 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 contained in the air in the process of mixing the aqueous ozone solution and the air inside the air supply section. As a result, the bubbles 8 can contain the ozone gas taken inside the air supply unit 7 and the ozone gas taken into the bubbles 8 during the process in which the bubbles 8 float in the aqueous ozone solution. As a result, the concentration of the ozone gas released from the bubbles 8 can be increased when the bubbles 8 reach the liquid surface. In addition, for example, a chlorine dioxide aqueous solution obtained by diluting a high-concentration chlorine dioxide aqueous solution may be used. Similarly in this case, in the process of mixing the chlorine dioxide aqueous solution and air inside the air supply unit 7, the air can contain a certain amount of chlorine dioxide gas. Thereby, the bubbles 8 can contain the chlorine dioxide gas taken inside the air supply part 7 and the chlorine dioxide gas taken into the bubbles 8 during the process in which the bubbles 8 float in the chlorine dioxide aqueous solution. . As a result, the concentration of chlorine dioxide gas released from the bubbles 8 can be increased when the bubbles 8 reach the liquid surface.

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

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 reservoir 5a first region 5b second region 5c bottom 5d third region 5e fourth region 6 hypochlorite Acid aqueous solution 6a Liquid surface 7 Air supply part 7a Solution suction port 7b Air suction port 7c Air bubble generation part 7d Discharge part 7e Motor part 7f Flow direction adjusting plate 8 Air bubbles 9 Air discharge part 10 Eliminator 11 Internal space 12 Air supply part holding part 13 Next Chlorous acid aqueous solution supply part 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 passage part 18 Outside air intake part 19 Blowing part 21 mixing section 22 air blowing section 23 filter section 24 internal air passage 25 partition plate 25a first taper section 25b second taper 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 generator

Claims (6)

a reservoir for storing an aqueous solution containing a sterilizing component;
an air supply unit that is immersed in an aqueous solution containing the sterilizing component and that releases air taken in from the outside as bubbles into the aqueous solution containing the sterilizing component;
with
The air supply unit
a solution suction port that takes in an aqueous solution containing the sterilization component from the reservoir;
an air suction port for taking in the air from the outside;
a discharge unit for discharging a mixed state of the aqueous solution containing the sterilizing component taken in from the solution suction port and the air taken in from the air suction port;
has
The air supply unit mixes the aqueous solution containing the sterilizing component taken into the inside from the storage unit through the solution suction port and the air taken in from the outside through the air suction port, while A space purifying device, characterized in that the air bubbles are discharged into the aqueous solution containing the sterilizing component stored in the storage part via a discharge part . 2. The space purification device according to claim 1, wherein the discharge part discharges the bubbles downward in the vertical direction. The reservoir has a partition plate extending vertically upward from the bottom of the reservoir,
The partition plate has a first region in which the solution suction port is arranged and takes in an aqueous solution containing the sterilization component from the solution suction port, and a discharge section in which the air bubbles released from the discharge section are distributed. 3. The space purifying device according to claim 2, wherein the storage portion is divided into a second region that is filled with water. The partition plate is configured to have a forward tapered shape on the second region side,
4. The space purification device according to claim 3, wherein the discharge part discharges the air bubbles so as to blow the forward tapered portion. The air supply unit further includes a flow direction adjusting plate provided at the tip of the discharge unit for adjusting the flow direction of the air bubbles discharged downward in the vertical direction from the discharge unit,
3. The method according to claim 2, wherein the flow direction adjusting plate changes the flow direction of the air bubbles toward a region opposite to the region where the solution suction port is arranged with the flow direction adjusting plate interposed therebetween. Space purifier. The space purification device according to any one of claims 1 to 5, further comprising a sterilized water generator that adjusts the aqueous solution containing the sterilizing component to a predetermined concentration.

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