JP2019170597A - Spatial sterilizer - Google Patents

Abstract

In a vaporization type space sterilization apparatus for volatilizing and sterilizing a gas of hypochlorous acid, a gaseous state discharged to an indoor space according to a combination of a required air volume and a concentration of hypochlorous acid gas. To provide a space sterilizer capable of adjusting the concentration of hypochlorous acid in a short time. An opening (24) that connects a ventilation path (5) of an intake port (3) and a ventilation path on the side of an outlet (4) at a position closer to a blower (6) than a filter (7), and a ventilation path opening and closing the opening (24). The provision of the switching device 11 allows a part of the air taken in from the indoor space to be discharged from the outlet 4 into the room without contacting the filter 7. In particular, since the opening 24 is opened and closed at a position closer to the air blower 6 than the filter 7, the amount of air flowing to the filter 7 having a large air path resistance can be easily adjusted. When the opening 24 is opened and closed by the ventilation passage switching device 11, the contact ratio between the air taken in from the indoor space and the filter 7 is changed. [Selection] Figure 2

Description

  The present invention relates to a space sterilization apparatus that removes floating microorganisms such as bacteria and viruses.

  Conventionally, in this type of space sterilization apparatus, a tray is provided in the main body, the filter is impregnated with hypochlorous acid water filled in the tray, and the air taken in from the suction port is brought into contact with the filter. There was a vaporization type sterilizer that volatilizes the gas of chlorous acid, discharges it out of the apparatus by a blowing means, and performs sterilization.

  In such an apparatus, the concentration of volatilized hypochlorous acid was controlled by the concentration of hypochlorous acid water in the tray and the amount of blown air. In order to increase the concentration of hypochlorous acid water in the tray, it is necessary to perform electrolysis, which usually takes several minutes or more. It is more difficult to reduce the concentration of hypochlorous acid water, and draining a part of the hypochlorous acid water in the tray and adding water to the tray reduces the concentration, so the drain tank User troubles such as replacement are required.

JP 2012-052699 A

  In such a conventional air purification apparatus, the concentration of hypochlorous acid gas to be blown out is determined mainly by the amount of air blown out and the concentration of hypochlorous acid water in the tray. The required gas concentration differs between the operation in which hypochlorous acid gas is diffused into the indoor space and the spot operation in which hypochlorous acid gas is directly applied to a person, and the required amount of blown air is determined according to the purpose. In this case, it is difficult to quickly switch the concentration of the hypochlorous acid gas blown out by adjusting the concentration of the hypochlorous acid water in the tray.

  Therefore, a space sterilization device is provided that can adjust the concentration of gaseous hypochlorous acid released into the indoor space in a short time according to the combination of the required air volume and the concentration of hypochlorous acid gas. The purpose is to do.

  And in order to achieve this object, the space sterilizer according to the present invention comprises a main body case having an intake port and an outlet, and an air purification means for volatilizing hypochlorous acid in the main body case. An air passage that communicates from the air inlet to the air outlet through the air purifying means, and a blower that discharges air that is disposed on the air outlet side and passes through the air passage to the outside of the main body case. A control unit that controls the concentration of hypochlorous acid blown out from the outlet, and the air purifying means contacts air with a tray that holds hypochlorous acid water containing hypochlorous acid. And a filter which is a ventilation volatilization means for volatilizing the hypochlorous acid contained therein, and the ventilation path includes a forward path from the intake port to the air purification means and a return path from the air purification means to the blowout port. Separated by a bulkhead, The air purifying means is formed so as to be a turning point, and the partition has an opening communicating the air passage of the intake port and the air passage on the outlet side at a position closer to the blower than the filter, and the opening An air path switching device that opens and closes, and the control unit switches between a diffusion operation in which air containing hypochlorous acid is diffused in an indoor space and a spot operation in which air containing hypochlorous acid is applied to a human body. Control means for performing control, and the control unit is configured to adjust the concentration of gaseous hypochlorous acid released to the indoor space by the air path switching device, and thereby the intended purpose Is achieved.

  According to the present invention, a main body case having an air inlet and an air outlet, an air purification means for volatilizing hypochlorous acid in the main body case, and the air purification means from the air inlet through the air purification means. A ventilation path communicating with the blowout opening, a blower that discharges air that is disposed on the blowout opening side and passes through the ventilation path to the outside of the main body case, and hypochlorous acid blown out from the blowout opening A control unit that controls the concentration of the acid, and the air purification means volatilizes the hypochlorous acid contained by bringing the air into contact with a tray that holds hypochlorous acid water containing hypochlorous acid. A filter that is a ventilation volatilization means to be separated, and the ventilation path is separated by a partition wall between a forward path from the intake port to the air purification means and a return path from the air purification means to the outlet. To be a turning point The partition is provided with an opening that communicates the air path of the intake port and the ventilation path on the outlet side at a position closer to the blower than the filter, and an air path switching device that opens and closes the opening, The control unit includes control means for performing operation control to switch between a diffusion operation in which air containing hypochlorous acid is diffused in an indoor space and a spot operation in which air containing hypochlorous acid is applied to a human body, and the control unit The concentration of gaseous hypochlorous acid released into the indoor space in a short time by adjusting the concentration of gaseous hypochlorous acid released into the indoor space by the air path switching device Thus, it is possible to provide a space sterilization apparatus that can adjust the operation and switch to the target operation.

Schematic of the space sterilizer according to Embodiments 1, 2, and 3 of the present invention Schematic of the cross section of the space sterilizer Schematic of the plane of the tray of the space sterilizer

  A space sterilization apparatus according to claim 1 of the present invention includes a main body case having an air inlet and an air outlet, an air purifying means for volatilizing hypochlorous acid in the main body case, and an air inlet. A ventilation path communicating with the air outlet through the air purifying means; a blower that discharges the air that is disposed on the side of the air outlet and passes through the air passage; and the air outlet; A control unit that controls the concentration of hypochlorous acid blown out from the air, and the air purification means is contained by bringing the air into contact with a tray that holds hypochlorous acid water containing hypochlorous acid. And a filter which is a ventilation volatilization means for volatilizing hypochlorous acid, and the ventilation path separates a forward path from the intake port to the air purification means and a return path from the air purification means to the blowout outlet by a partition wall. And the air purification means The partition is formed so as to be a turning point, and the partition has an opening communicating the ventilation path of the intake port and the ventilation path on the outlet side at a position closer to the blower than the filter, and a ventilation path that opens and closes the opening A switching device, and the control unit performs operation control for switching between a diffusion operation in which air containing hypochlorous acid is diffused in an indoor space and a spot operation in which air containing hypochlorous acid is applied to a human body. Means for adjusting the concentration of gaseous hypochlorous acid released into the indoor space by the ventilation path switching device.

  Thereby, since the flow rate of the air passing through the filter can be adjusted by opening and closing the bypass flow path with the ventilation path switching device, the contact rate between the air taken in from the indoor space and the filter is changed, and the indoor space is changed. It is possible to provide a space sterilization apparatus capable of adjusting the concentration of gaseous hypochlorous acid released into the water in a short time.

  Further, in the space sterilization apparatus according to claim 2, the ventilation path switching device changes the flow rate of air flowing from the ventilation path of the intake port to the ventilation path on the outlet side in a stepwise manner.

  Thereby, the hypochlorous acid concentration to be released by switching the ventilation path from the inlet to the outlet in the casing by the control means at the end of the sterilization operation by the control means. Can be finely adjusted, and the hypochlorous acid remaining in the room can be stirred during the circulation operation to enhance the sterilizing action.

  Moreover, the space sterilization apparatus which concerns on Claim 3 can be calculated from the total time of each operation implementation time of the said indoor diffusion driving | operation and the said spot driving | operation, The hypochlorous acid consumed in the hypochlorous acid water in the said tray The electrolysis time is determined in accordance with the amount of acid consumption, and control means for controlling the electrolysis means so as to perform electrolysis for the determined time within a predetermined time from the start of the main body operation is provided.

  Thereby, the reproducibility of the concentration of hypochlorous acid water in the tray after electrolysis is enhanced, and the space sterilization apparatus can stably perform the sterilization operation.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
FIG. 1 shows the appearance of the space sterilization apparatus 1 of the present embodiment.

  As shown in FIG. 1, a substantially box-shaped main body case 2 is provided. A substantially rectangular air inlet 3 for sucking indoor air is provided on both sides of the main body case 2 and a substantially rectangular air blower for blowing purified air on the top surface. An outlet 4 is provided.

  As shown in FIG. 2, inside the main body case 2, there are a ventilation path 5, a blower 6, a filter 7, a water supply tank 8, a drainage tank 9, a tray 10, a ventilation path switching device 11, and a control. Part 12 is provided.

  The air passage 5 is an air passage that passes through the filter 7 and the blower 6 inside the main body case 2, and communicates the air inlet 3 with the air outlet 4.

  The blower 6 is provided on the upper part of the main body case 2 and connected to the outlet 4. As an example, the blower 6 desirably includes a so-called sirocco fan that includes a motor, an impeller rotated by the motor, and a case surrounding the motor and the impeller.

  The filter 7 is a rotatable hollow cylindrical body having a plurality of openings on the surface thereof, and is provided so that the surface of the filter 7 blocks the air air path on the upstream side of the airflow from the blower 6. .

  The water supply tank 8, the drain tank 9, and the tray 10 are provided in the lower part of the main body case 2, and these can be detached from the main body case 2.

  The water supply tank 8 stores a sodium chloride solution as an electrolysis target solution, and supplies a new sodium chloride solution according to the amount of the sodium chloride solution in the tray 10. In addition, the storage amount of the electrolysis target liquid is an amount in which storage in the water supply tank 8 is eliminated in one sterilization process.

  The drainage tank 9 discharges the dissolved solution inside the storage tank unit 13.

  A drainage means 14 is provided so that the solution in the storage tank 13 can be discharged to the drainage tank 9. The drainage means 14 includes a pump 15 disposed on the storage tank 13 side and a pipe 16 connected from the pump 15 to the drainage tank 9 side.

  In the tray 10, an electrolytic tank unit 18 having an electrode 17 and a storage tank unit 13 having a drainage unit 14 and a water transfer unit 19 are provided. The electrolytic cell unit 18 electrolyzes sodium chloride supplied from the water supply tank 8 at the electrode 17 to generate hypochlorous acid water as a solution. Inside the reservoir 13, the lower part of the filter 7 is immersed in the solution.

  The storage tank unit 13 and the electrolytic cell unit 18 are separated by a partition plate 20. In the partition plate 20, a gap 21 is provided in a lower portion on one end side of the partition plate 20 in order to limit the movement of the solution between the storage tank unit 13 and the electrolytic cell unit 18.

  The water transfer unit 19 includes a pump 15 disposed on the storage tank unit 13 side so that the stored water in the storage tank unit 13 can be transferred to the electrolytic cell unit 18 and a pipe 16 connected from the pump 15 to the electrolytic cell unit 18 side. It is composed. As shown in FIG. 3, the pump 15 is disposed not on the one end side of the partition plate 20 having the gap 21 but on the other end side of the partition plate 20.

  When the stored water in the storage tank section 13 is transferred to the electrolytic tank section 18, the hypochlorous acid water generated in the electrolytic tank section 18 passes through the gap 21 and is supplied to the storage tank section 13 side.

  In the present embodiment, the stored water (hypochlorous acid water) from the electrolytic cell unit 18 to the storage cell unit 13 through the gap 21 is transferred as the stored water in the storage cell unit 13 is transferred to the electrolytic cell unit 18. ) And the stored water in the tray 10 can be circulated.

  In order to supply the electrolyzed hypochlorous acid water to the filter 7, it is preferable to provide the rotating shaft 22 of the filter 7 and the partition plate 20 in parallel as shown in FIG.

  The ventilation path 5 is formed so that the forward path from the inlet 3 to the filter 7 and the return path from the filter 7 to the outlet 4 are separated by a partition wall 23 so that the filter 7 serves as a turning point. The partition wall 23 has an opening 24 that connects the ventilation path 5 on the inlet 3 side and the ventilation path 5 on the outlet 4 side at a position closer to the blower 6 than the filter 7, and the ventilation path switching device 11 that opens and closes the opening. It has. The flow rate of air passing through the filter 7 can be adjusted by opening and closing the bypass flow path by the opening 24.

  The control unit 12 is provided in the main body case 2 and switches between a diffusion operation in which air containing hypochlorous acid is diffused in the indoor space and a spot operation in which air containing hypochlorous acid is applied to the human body. Controls the operation of the water transfer section 19, the electrode 17, the blower 6, and the ventilation path switching device 11, and adjusts the concentration of gaseous hypochlorous acid released into the indoor space. Is.

  The opening 24 is closed by the ventilation path switching device 11 during the diffusion operation, and the opening 24 is opened by the ventilation path switching device 11 during the spot operation.

  Next, the main operation of the portion according to the present embodiment of the operation of the space sterilizer 1 will be described.

  In the above configuration, the water supply tank 8 is attached before the operation of the space sterilizer 1, and the sodium chloride solution is supplied into the tray 10. The contents of the water supply tank 8 may be tap water, and a sodium chloride tablet may be inserted into the tray 10 by the user.

  When the space sterilizer 1 is operated, first, the water transfer unit 19 is operated and the sodium chloride solution is stirred in the tray 10. Next, the electrode 17 operates and sodium chloride existing in the electrolytic cell unit 18 is consumed to generate hypochlorous acid water. The hypochlorous acid water is supplied to the filter 7 provided in the storage tank portion 13 through the gap 21 of the partition plate 20.

  In the sterilization operation, when the air blower 6 operates, the air in the indoor space is sucked into the space sterilizer 1 from the air inlet 3, flows through the ventilation path 5, contacts the filter 7, and is sterilized from the air outlet 4. It is discharged into the indoor space outside the apparatus 1. This air is sterilized and deodorized when it comes into contact with the filter 7. Further, contacting the air with the filter 7 at a predetermined speed improves the volatilization characteristics of hypochlorous acid, and when discharged from the air outlet 4, it becomes air sufficiently containing gaseous hypochlorous acid, and is sterilized and deodorized. Demonstrate the effect. That is, the space sterilizer 1 has a sterilizing and deodorizing effect.

  The control unit 12 switches between a diffusion operation in which air containing hypochlorous acid is diffused in the indoor space and a spot operation in which air containing hypochlorous acid is applied to the human body during the sterilization operation by the user's operation. The control part 12 adjusts the density | concentration of the gaseous hypochlorous acid discharge | released by the ventilation path switching device 11 to indoor space.

  The ventilation path switching device 11 opens and closes an opening 24 provided in the partition wall 23, and the flow rate of air passing through the filter 7 can be adjusted by opening and closing the bypass flow path by the opening 24. During the diffusion operation, the opening 24 is closed by the ventilation path switching device 11, and all the air sucked into the space sterilizer 1 from the air inlet 3 comes into contact with the filter 7 and is outside the space sterilizer 1 from the outlet 4. It is discharged into the indoor space. At this time, in order to sterilize the entire indoor space, gaseous hypochlorous acid in a high concentration range is discharged. At the time of spot operation, the opening 24 is opened by the ventilation path switching device 11, and a part of the air sucked into the space sterilization device 1 from the air inlet 3 flows through the bypass flow path passing through the opening 24 and passes through the air outlet 4. It is discharged into the indoor space outside the sterilizer 1, part of it comes into contact with the filter 7, and is discharged from the outlet 4 into the indoor space outside the space sterilizer 1. At this time, in order to sterilize the human body, low-concentration gaseous hypochlorous acid can be discharged in consideration of safety.

  The partition wall 23 has an opening 24 for connecting the ventilation path 5 of the intake port 3 and the ventilation path on the outlet 4 side at a position closer to the blower 6 than the filter 7, and the ventilation path switching device 11 for opening and closing the opening 24. With this, a part of the air taken in from the indoor space can be discharged into the room through the outlet 4 without contacting the filter 7. In particular, since the opening 24 is opened and closed at a position closer to the blower 6 than the filter 7, the amount of air flowing to the filter 7 side having a large air path resistance can be easily adjusted.

  When the opening 24 is opened and closed by the ventilation path switching device 11 in this way, the contact ratio between the air taken in from the indoor space and the filter 7 is changed, and the concentration of gaseous hypochlorous acid released into the indoor space is changed. Can be adjusted in a short time. That is, adjusting the contact rate between the filter 7 and the air taken in from the indoor space by opening and closing the opening 24 is more gaseous than the adjusting the concentration of hypochlorous acid water. It is possible to provide a space sterilization apparatus that can adjust the concentration of hypochlorous acid in a short time.

(Embodiment 2)
In the configuration of the first embodiment, it is desirable that the space sterilizer 1 can finely adjust the concentration of gaseous hypochlorous acid released from the outlet 4 into the indoor space.

  Therefore, in the present embodiment, as shown in FIG. 2, the ventilation path switching device 11 opens and closes the opening 24 provided in the partition wall 23 in a stepwise manner under the control of the control unit 12. By adjusting the amount of air flowing into the bypass flow path, the flow rate of air passing through the filter 7 can be adjusted.

  By performing this operation, the contact rate between the air taken in from the indoor space and the filter 7 can be finely adjusted.

  In this way, the space sterilizer 1 can finely adjust the concentration of gaseous hypochlorous acid released into the indoor space in a short time according to the purpose, taste, and the like.

(Embodiment 3)
In the configuration of the first and second embodiments, the space sterilization apparatus 1 has a high reproducibility for each operation of the concentration of gaseous hypochlorous acid released from the outlet 4 into the indoor space, and the sterilization performance is stable. It is desirable. Further, as the amount of hypochlorous acid volatilized changes due to the contact rate between the air taken in from the indoor space and the filter 7, the amount of decrease in the concentration of hypochlorous acid water filled in the tray 10 also changes.

  Therefore, in the present embodiment, the controller 12 in the tray 10 can be calculated from each operation execution time of the operation in which the contact ratio between the air taken in from the indoor space and the filter 7 is different at a predetermined time from the start of operation. By determining the electrolysis time according to the amount of hypochlorous acid consumed in the hypochlorous acid water, and controlling the electrode 17 so as to perform electrolysis for a predetermined time from the start of the main body operation. The concentration of hypochlorous acid water in the tray 10 can be made equivalent to that before the operation.

  By performing this operation, the reproducibility of the concentration of hypochlorous acid water in the tray 10 after electrolysis is improved, and the space sterilization apparatus 1 can perform the sterilization operation more stably.

  The space sterilization apparatus according to the present invention is the air volume required by changing the contact rate between the air and the filter taken in from the indoor space by the air path switching device during the operation of space sterilization with gaseous hypochlorous acid, Compared with adjusting the concentration of hypochlorous acid water, the concentration of gaseous hypochlorous acid released into the indoor space can be adjusted in a short time. It is possible to adjust the concentration of gaseous hypochlorous acid released into the indoor space in a short time, and it can be used in a space where there is a clear sterilization and deodorization purpose such as medical facilities and nursing care facilities. In addition, it is useful as a space sterilization apparatus that can easily change the blowing concentration.

DESCRIPTION OF SYMBOLS 1 Space sterilizer 2 Main body case 3 Intake port 4 Outlet 5 Ventilation path 6 Air blower 7 Filter 8 Water supply tank 9 Drainage tank 10 Tray 11 Ventilation path switching device 12 Control part 13 Storage tank part 14 Drainage means 15 Pump 16 Piping 17 Electrode 18 Electrolyzer unit 19 Water transfer unit 20 Partition plate 21 Gap 22 Rotating shaft 23 Partition 24 Opening

Claims (3)

A main body case having an air inlet and an air outlet;
In the main body case,
Air purification means for volatilizing hypochlorous acid, a ventilation path communicating from the intake port to the outlet through the air purification means, and air disposed on the side of the outlet and passed through the ventilation path A blower that discharges the outside of the main body case, and a control unit that controls the concentration of hypochlorous acid blown from the outlet,
The air purifying means has a tray that holds hypochlorous acid water containing hypochlorous acid, and a filter that is a ventilation volatilizing means for volatilizing hypochlorous acid contained by contacting air.
The ventilation path is formed such that a forward path from the intake port to the air purification means and a return path from the air purification means to the outlet are separated by a partition, and the air purification means is formed as a turning point. An opening for communicating the air path of the intake port and the ventilation path on the outlet side at a position closer to the blower than the filter, and a ventilation path switching device for opening and closing the opening,
The control unit includes control means for performing operation control for switching between a diffusion operation in which air containing hypochlorous acid is diffused in an indoor space and a spot operation in which air containing hypochlorous acid is applied to a human body,
The said control part is a space sterilizer which adjusts the density | concentration of the gaseous hypochlorous acid discharge | released to the said indoor space by the said ventilation path switching device. The space sterilizer according to claim 1, wherein the ventilation path switching device changes the flow rate of air flowing from the ventilation path of the intake port to the ventilation path on the outlet side through the opening in a stepwise manner. The electrolysis time is determined according to the amount of hypochlorous acid consumed in the hypochlorous acid water in the tray, which can be calculated from the respective operation times of the diffusion operation and the spot operation. The space sterilization apparatus according to claim 1, further comprising a control unit that controls the electrolysis unit so as to perform electrolysis for a predetermined time.

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