JP2021115119A - Air purification system - Google Patents

Abstract

To provide an air purification system capable of sterilizing quickly, and creating a comfortable space where bacteria do not grow easily after finish of sterilization operation.SOLUTION: A control part 19 includes sterilization operation means 26 for operating an air purification device 2 as a sterilization operation, ventilation operation means 27 for operating a ventilator 3 as a ventilation operation, and ventilation operation determination means 28 for determining operation or stop of the ventilator 3 from signals of a room humidity detection part 17 and an outdoor humidity detection part 18. The ventilation operation determination means 28 operates the ventilator 3 so that a relative humidity in an indoor space 4 agrees with a prescribed value or lower after the sterilization operation.SELECTED DRAWING: Figure 1

Description

The present invention relates to an air purification system that sterilizes a target space represented by a room.

Conventionally, as this type of air purification device, a sterilization treatment device for sterilizing a space by discharging hypochlorous acid as a mist by a spray device using a nozzle has been devised (for example, Patent Document 1).

Hereinafter, the conventional air purification device will be described.

As shown in FIG. 10, a bifluid nozzle 103 was arranged on the wall surface 102 of the sterilization target chamber 101, and a mist-like chemical solution was sprayed to sterilize the chamber. In order to enhance the effect of sterilization, an air conditioner 104 was provided in the sterilization target room to humidify and dehumidify. In such a sterilization target room, the relative humidity of the target room was adjusted before spraying the chemical solution.

Specifically, if the relative humidity after spraying the chemical solution is less than 72%, the sterilization effect will be low, so the relative humidity of the sterilization target room will be 70% to 88%. The initial relative humidity before spraying the chemical was adjusted to prevent condensation.

Japanese Unexamined Patent Publication No. 2016-27849

In such a conventional sterilization treatment device, since the relative humidity is set to 70% to 88% after spraying the chemical solution, the comfort is impaired, the sterilization operation is completed, and the effect of the remaining hypochlorous acid remains. When it disappeared, it was in an environment where bacteria could easily grow due to the high humidity.

That is, in the conventional sterilization treatment device, the space humidity after the sterilization operation tends to rise, and after the device is stopped, there is a possibility that the space becomes a space where bacteria and mold easily grow.

In other words, if bacteria are brought in by the invasion of people immediately after the end of operation, there is a high risk of reproduction.

Therefore, the present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an air purification system that promptly sterilizes bacteria and creates a comfortable space in which bacteria do not easily grow after the sterilization operation is completed. ..

Then, in order to achieve this object, the air purification system according to the present invention is provided with an air purification device and a ventilation device, and the air purification device transfers a finely divided hypochlorous acid aqueous solution into an indoor space. An indoor humidity detection unit that detects the relative humidity of the indoor space, an outdoor humidity detection unit that detects the relative humidity of the outdoor air, and a control unit that determines the operation of the air purification device and the ventilation device. The ventilation device includes an air supply air passage having an exhaust air passage and an air purification filter, and an operation device that operates by a signal of the control unit, and the control unit uses the air purification device as a sterilization operation. A sterilization operation means to be operated, a ventilation operation means for operating the ventilation device as a ventilation operation, and a ventilation operation determination means for determining the operation and stop of the ventilation device from the signals of the indoor humidity detection unit and the outdoor humidity detection unit. The ventilation operation determination means operates the ventilation device so that the relative humidity of the indoor space becomes equal to or less than a predetermined value after the sterilization operation, thereby achieving the intended purpose. be.

According to the present invention, the air purifying device and the ventilation device are provided, and the air purifying device supplies a finely divided hypochlorous acid aqueous solution to the indoor space, and determines the relative humidity of the indoor space. The ventilation device includes an indoor humidity detection unit for detecting, an outdoor humidity detection unit for detecting the relative humidity of the outdoor air, and a control unit for determining the operation of the air purification device and the ventilation device. The ventilation device includes an exhaust air passage and air. The air supply air passage having a purification filter and an operation device that operates by the signal of the control unit are provided, and the control unit includes a sterilization operation means for operating the air purification device as a sterilization operation and the ventilation as a ventilation operation. The ventilation operation means for operating the device and the ventilation operation determination means for determining the operation and stop of the ventilation device from the signals of the indoor humidity detection unit and the outdoor humidity detection unit are provided, and the ventilation operation determination means is a sterilization operation. Later, the ventilation device is operated so that the relative humidity of the indoor space becomes equal to or less than a predetermined value, and a condition that is comfortable and difficult for bacteria and mold to grow is quickly created, and a space with few bacteria is maintained. You can get the effect of being able to.

The figure which shows the outline of the air purification system of Embodiment 1 of this invention. Block diagram of the air purification system of the first embodiment The figure which shows the structure of the liquid miniaturization chamber of the same Embodiment 1. A flowchart illustrating the operation of the air purification system according to the first embodiment. The figure which shows the structure of the liquid miniaturization chamber of Embodiment 2. Block diagram of the air purification system of the second embodiment A flowchart illustrating the operation of the air purification system according to the second embodiment. The figure which shows the outline of the air purification system of Embodiment 3 Block diagram of the air purification system of the third embodiment The figure which shows the structure of the conventional sterilization processing apparatus

The air purification system according to claim 1 of the present invention includes an air purification device and a ventilation device, and the air purification device supplies a finely divided hypochlorous acid aqueous solution to an indoor space. The ventilation device includes an indoor humidity detection unit that detects the relative humidity of the indoor space, an outdoor humidity detection unit that detects the relative humidity of the outdoor air, and a control unit that determines the operation of the air purification device and the ventilation device. Is provided with an air supply air passage having an exhaust air passage and an air purification filter, and an operating device that operates by a signal of the control unit, and the control unit operates the air purification device as a disinfecting operation. The ventilation operation means for operating the ventilation device as the ventilation operation, and the ventilation operation determination means for determining the operation and stop of the ventilation device from the signals of the indoor humidity detection unit and the outdoor humidity detection unit. The determination means is to operate the ventilation device so that the relative humidity of the indoor space becomes equal to or less than a predetermined value after the sterilization operation.

As a result, immediately after the indoor space is sufficiently sterilized, the relative humidity of the indoor space is lowered by ventilation operation, which quickly creates a comfortable space and quickly creates conditions that make it difficult for bacteria and mold to grow. It is possible to maintain a space with little space.

Further, in the air purification system according to claim 2, after the sterilization operation means finishes the sterilization operation, the ventilation operation determination means detects the relative humidity of the indoor space by the indoor humidity detection unit, and the indoor space has a relative humidity. When it is determined that the relative humidity is 60% or more, the relative humidity of the outdoor air detected by the outdoor humidity detector is compared with the relative humidity of the indoor space, and when the relative humidity in the room is high, the ventilation device After that, the humidity is detected by the indoor humidity detecting means, and the operation of the ventilation device is stopped when the relative humidity of the indoor space becomes lower than 60%.

As a result, the humidity of the indoor space immediately after the space is sufficiently sterilized is lowered to less than 60% by operating the ventilation device, thereby quickly creating comfortable conditions and preventing the growth of bacteria and molds. A small space can be maintained.

Further, the air purification system according to claim 3 is provided with a liquid supply device that selectively supplies one of a hypochlorite aqueous solution and water for the liquid to be supplied to the indoor space, and the control unit needs to be humidified. The humidifying operation determining means detects the relative humidity of the indoor space by the indoor humidity detecting unit, and the relative humidity of the indoor space is detected before the start of the sterilizing operation by the sterilizing operation means. Is supplied with water from the liquid supply device so that the relative humidity of the indoor space is increased by the finely divided water.

As a result, before the start of the sterilization operation, the relative humidity of the indoor space is increased based on the judgment of the humidifying operation determination means, so that the sterilization effect of the hypochlorous acid aqueous solution in the sterilization operation is enhanced and the indoor space is sufficient. Immediately after the bacteria are sterilized, the relative humidity in the room is returned to the state before the start by operating the ventilation device, creating conditions that are comfortable and difficult for bacteria and mold to grow, and maintain a space free of bacteria. can do.

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

(Embodiment 1)
The air purification system 1 of the present embodiment includes an air purification device 2 and a ventilation device 3. The air purification device 2 supplies a finely divided hypochlorous acid aqueous solution to the air in the indoor space.

In FIG. 1, the suction port 5 and the air outlet 6 of the air purification device 2 and the air outlet 7 of the ventilation device 3 are opened in the indoor space 4. Further, the indoor space 4 is provided with a ventilation port 8 as an exhaust air passage according to the air volume of the ventilation device 3.

The air purification device 2 of the present embodiment has a housing 9 having a suction port 5 for sucking air in the indoor space and an outlet 6 for blowing out the air sucked from the suction port 5 to the indoor space 4. .. An air passage 10 from the suction port 5 to the air outlet 6 is formed in the housing 9. The air passage 10 includes a blower portion 11 for ventilating air from the suction port 5 to the air outlet 6, and a liquid miniaturization chamber 12 for containing a finely divided hypochlorous acid aqueous solution in the passing air. Further, the housing 9 is provided with a liquid supply device 13 for supplying an aqueous hypochlorous acid solution to the liquid miniaturization chamber 12. The liquid supply device 13 includes a hypochlorous acid supply unit 14 that stores a hypochlorous acid aqueous solution and a pump 15 that sends the stored hypochlorous acid aqueous solution to the liquid micronization chamber 12.

Although not essential in the present embodiment, the liquid supply device 13 is a water supply unit 16 that stores water in place of the hypochlorous acid supply unit 14 that stores the hypochlorous acid aqueous solution (in the second embodiment). It is also possible to change the liquid contained in the air to water by switching to receive the liquid supply from (described). By receiving the water supply from the water supply unit 16, the liquid miniaturization chamber 12 can perform humidification.

Further, the air purification device 2 includes an indoor humidity detection unit 17 that detects the relative humidity of the indoor space 4, an outdoor humidity detection unit 18 that detects the relative humidity of the outdoor air, a blower unit 11, and a liquid miniaturization chamber 12. It includes a liquid supply device 13 and a control unit 19 that determines the operation of the ventilation device 3.

As shown in FIG. 2, the liquid micronization chamber 12 collides the hypochlorous acid aqueous solution released by the centrifugal force of the rotating plate 20 with the collision wall 21 to make it finer, and by operating the blower portion 11. Hypochlorous acid can be contained in the air flowing through the air passage 10. More specifically, it includes a motor 23, a rotating plate 20, a collision wall 21, and a pumping pipe 22 coaxially supported by the rotating shaft 32 with the rotating plate 20. The pumping pipe 22 is a pipe whose upper end side is wider than that of the lower end. Due to this shape, water can be sucked up to the upper end side by rotating around the axis of the pipe.

The inner bottom of the liquid miniaturization chamber 12 is shaped so that the hypochlorous acid aqueous solution supplied from the liquid supply device 13 can be stored.

When the pumping pipe 22 and the rotating plate 20 are rotated by the motor 23, hypochlorous acid can be pumped to the surface of the rotating plate 20 inside the pumping pipe 22. The hypochlorous acid aqueous solution pumped up to the surface of the rotating plate 20 is scattered by centrifugal force, collides with the collision wall 21, and is crushed into fine particles. Fine particles are more likely to be contained in the passing air.

As shown in FIG. 3, the control unit 19 includes a timer 24 for counting a predetermined time, a sterilization operation means 26, a ventilation operation means 27, and a ventilation operation determination means 28.

The sterilization operation means 26 operates the timer 24 to operate the liquid supply device 13, the blower unit 11, and the liquid miniaturization chamber 12 for a predetermined time as the sterilization operation.

The ventilation operation determining means 28 operates the ventilation operation means 27 until the relative humidity of the indoor space 4 becomes equal to or less than a predetermined value after the sterilization operation to operate the ventilation device 3. Therefore, the ventilation operation determination means 28 determines the operation and stop of the ventilation device 3 from the signals of the indoor humidity detection unit 17 and the outdoor humidity detection unit 18.

The ventilation operation means 27 operates the timer 24 as the ventilation operation as the ventilation operation based on the determination of the ventilation operation determination means 28 to operate the ventilation device 3 for a predetermined time.

As described above, the sterilization operation means 26 operates the timer 24 to perform the sterilization operation. Similarly, the ventilation operation means 27 operates the timer 24 to perform the ventilation operation. However, the predetermined time in the sterilization operation means 26 and the ventilation operation means 27 is independent. That is, each predetermined time is a different time.

As shown in FIG. 1, the ventilation device 3 has a housing 30 including an intake port 29 that sucks in outdoor air and an outlet 7 that blows out the sucked outdoor air into the indoor space 4. An air supply air passage 31 communicating from the intake port 29 to the air outlet 7 is formed in the housing 30.

The air supply air passage 31 is provided with a blower device 33 that blows air from the intake port 29 to the air outlet 7. Further, on the upstream side of the blower 33, an air purification filter 34 for removing dust contained in the outdoor air taken in from the intake port 29 is arranged.

Further, the housing 30 is provided with an operation device 35 that operates the blower device 33 in response to the signal of the control unit 19.

An outdoor humidity detection unit 18 is arranged on the upstream side of the intake port 29 of the ventilation device 3. Further, the indoor humidity detection unit 17 is arranged on the upstream side of the suction port 5.

The indoor humidity detection unit 17 and the outdoor humidity detection unit 18 each detect the relative humidity at the installation location and transmit the detected signal to the control unit 19.

In the above configuration, as shown in FIG. 4, when the user starts the sterilization operation of the device, the timer 24 starts counting by the command of the sterilization operation means 26, and the blower 11 and the liquid supply device 13 (hypochlorous acid). The chloric acid supply unit 14) and the liquid miniaturization chamber 12 operate. By the operation of the pump 15, the hypochlorous acid aqueous solution is supplied from the liquid supply device 13 into the liquid miniaturization chamber 12. When the pumping pipe 22 and the rotating plate 20 rotate, the hypochlorous acid aqueous solution that has become fine particles becomes hypochlorous acid gas. The hypochlorous acid gas generated in this way is absorbed by the air passing through the air passage 10 by the operation of the blower portion 11 and is supplied into the room from the air outlet 6. The supplied hypochlorous acid gas sterilizes the indoor space 4. At this time, water vaporizes at the same time, and as a result, humidification is also performed. As shown in FIG. 4, the sterilization operation ends when a predetermined time elapses according to the count of the timer 24.

When the sterilization operation is completed, the indoor humidity detection unit 17 detects the relative humidity of the indoor space 4. At this time, when the relative humidity exceeds 60% of the threshold value, the ventilation operation determining means 28 detects the relative humidity of the outdoor air by the outdoor humidity detecting unit 18. Then, when the relative humidity of the outdoor air is lower than the relative humidity of the room, the timer 24 starts counting, a signal is sent from the ventilation operation means 27 to the ventilation device 3 side, and the operation device 35 operates the blower device 33. Let me. The outdoor air is sent to the indoor space 4 by the operation of the blower 33, and the air in the indoor space 4 is discharged to the outside from the ventilation port 8. That is, ventilation operation is carried out. During the ventilation operation, the humidity is determined based on the relative humidity detection of the indoor space 4 at regular intervals by the timer operation, and when the relative humidity becomes less than 60%, a signal is sent from the ventilation operation means 27 to the operation device 35 to perform the ventilation operation. finish.

The sterilization operation is preferably about 6 to 12 hours, and a relatively low concentration of hypochlorous acid gas (about 5 to 20 ppb) is expected to have a sterilization effect of 99% or more.

(Embodiment 2)
In order to enhance the effect of sterilization by hypochlorous acid, it is important to keep the indoor space high humidity in advance. In the present embodiment, an air purification system in the case where the indoor space 4 is set to high humidity for sterilization will be described in advance. The same configurations as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In the air purification system 1 of the present embodiment, the air purification device 2 includes a humidification operation determination means 36, and the liquid supply device 13 includes a water supply unit 16.

As shown in FIG. 5, the liquid supply device 13 includes a hypochlorous acid supply unit 14 that stores a hypochlorous acid aqueous solution and a water supply unit 16 that stores water, and includes a hypochlorous acid aqueous solution and water. Each supply can be selected. The hypochlorous acid supply unit 14 and the water supply unit 16 store the hypochlorous acid aqueous solution or water as the liquid to be delivered to the liquid miniaturization chamber 12, respectively.

Each of the hypochlorous acid supply unit 14 and the water supply unit 16 is provided with a pump 15, and the pump 15 that receives the signal of the control unit 19 supplies the liquid to the liquid micronization chamber 12 and supplies the liquid to the indoor space 4. The liquid is selected from hypochlorous acid aqueous solution or water.

As shown in FIG. 6, the control unit 19 is provided with a humidifying operation determining means 36. The humidifying operation determining means 36 determines the necessity of the humidifying operation.

The humidifying operation determining means 36 detects the relative humidity of the indoor space 4 by the indoor humidity detecting unit 17 so that the relative humidity of the indoor space 4 exceeds a predetermined value before the start of the sterilizing operation by the sterilizing operation means 26. It is a thing. In this case, according to the determination of the humidifying operation determining means 36, the liquid supply device 13 supplies water from the water supply unit 16 to the liquid miniaturization chamber 12, and raises the relative humidity of the indoor space 4 by the miniaturized water. ..

In the above configuration, when the user starts the sterilization operation of the device, as shown in FIG. 7, the indoor humidity detection unit 17 detects the relative humidity of the indoor space 4, and the humidification operation determination means 36 determines the indoor space. The relative humidity of 4 will be increased. When the relative humidity of the indoor space 4 detected by the indoor humidity detection unit 17 is equal to or higher than a predetermined value, the humidification operation is not performed. If it is less than a predetermined value, the timer 24 starts counting by the command of the humidification operation determination means 36, and the water supply unit 16 supplies water to the liquid miniaturization chamber 12 by the pump 15. Further, the blower portion 11 and the liquid miniaturization chamber 12 are operated for a predetermined time by the count of the timer 24. In the liquid miniaturization chamber 12, when the pumping pipe 22 and the rotating plate 20 rotate, water collides with the collision wall 21 and becomes fine particles. These fine water particles are easily contained in the air. The fine water droplets generated in this way are absorbed by the air passing through the air passage 10 by the operation of the blower portion 11 and are supplied into the room from the air outlet 6. The supplied air humidifies the indoor space 4 until the relative humidity of the indoor space 4 exceeds a predetermined value.

When the relative humidity of the indoor space 4 becomes equal to or higher than a predetermined value, the timer 24 starts counting by the command of the sterilization operation means 26, and the blower 11, the liquid supply device 13, and the liquid miniaturization chamber 12 operate. By the operation of the pump 15, the hypochlorous acid aqueous solution is supplied from the hypochlorous acid supply unit 14 into the liquid miniaturization chamber 12 in the liquid supply device 13. When the pumping pipe 22 and the rotating plate 20 rotate, the hypochlorous acid aqueous solution that has become fine particles becomes hypochlorous acid gas. The hypochlorous acid gas generated in this way is absorbed by the air passing through the air passage 10 by the operation of the blower portion 11 and is supplied into the room from the air outlet 6. The room is sterilized by the hypochlorous acid gas supplied to the room. At this time, water vaporizes at the same time, and as a result, humidification is also performed. As shown in FIG. 4, the sterilization operation ends when a predetermined time elapses according to the count of the timer 24.

In this way, the humidifying operation determining means 36 supplies water from the water supply unit 16 to the liquid miniaturization chamber 12, and the relative humidity of the indoor space 4 can be increased by the miniaturized water. Thereby, the effect of sterilization by hypochlorous acid can be enhanced.

When the sterilization operation is completed, the indoor humidity detection unit 17 detects the relative humidity of the indoor space 4. At this time, when the relative humidity exceeds 60% of the threshold value, the ventilation operation determining means 28 detects the relative humidity of the outdoor air by the outdoor humidity detecting unit 18. Then, when the relative humidity of the outdoor air is lower than the relative humidity of the room, the timer 24 starts counting, a signal is sent from the ventilation operation means 27 to the ventilation device 3 side, and the operation device 35 operates the blower device 33. Let me. The outdoor air is sent to the indoor space 4 by the operation of the blower 33, and the air in the indoor space 4 is discharged to the outside from the ventilation port 8. That is, ventilation operation is carried out. During the ventilation operation, the humidity is determined based on the detection of the relative humidity in the indoor space 4 at regular intervals by the timer operation, and when the relative humidity becomes less than 60%, a signal is sent from the ventilation operation means 27 to the operation device 35 to perform the ventilation operation. Is finished.

That is, before the start of the sterilization operation, the relative humidity of the indoor space 4 is increased based on the determination of the humidifying operation determination means 36 to enhance the sterilization effect of the hypochlorous acid aqueous solution in the sterilization operation, and the indoor space is improved. Immediately after the bacteria have been sufficiently sterilized, the relative humidity of the indoor space 4 is returned to the state before the start by operating the ventilation device 3, thereby quickly creating comfortable conditions and preventing the growth of bacteria and molds. A small space can be maintained.

Although it is not an essential configuration, in order to quickly switch between the hypochlorous acid aqueous solution supplied to the liquid miniaturization chamber 12 and water, a drain hole (not shown) is provided in the liquid miniaturization chamber 12. It is also effective to drain the remaining liquid.

(Embodiment 3)
In this embodiment, another embodiment of the air purification device 2 of the first embodiment will be described. The same configurations as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

In the first embodiment, a housing 9 having a suction port 5 and an air outlet 6 is provided, and an air passage 10 from the suction port 5 to the air outlet 6 is formed in the housing 9. The air passage 10 is provided with a blower portion 11 for ventilating air from the suction port 5 to the air outlet 6, and a liquid miniaturization chamber 12 for containing a finely divided hypochlorous acid aqueous solution in the passing air. rice field.

The air purification device 42 of the present embodiment is different in the form of supplying the particles of the hypochlorous acid aqueous solution to the indoor space 4. As shown in FIGS. 8 and 9, a bifluid nozzle 44 is provided on each wall surface of the indoor space 4, and an aqueous hypochlorous acid solution is sprayed as a chemical solution.

In addition to such a configuration, the air purification device 42 has an indoor humidity detection unit 17 that detects the relative humidity of the indoor space 4 and an outdoor humidity detection unit that detects the relative humidity of the outdoor air, similarly to the air purification device 2. It includes 18, and a control unit 19 that determines the operation of the air purification device 42 and the ventilation device 3. In this case, the indoor humidity detection unit 17 may be arranged on the wall surface in the indoor space 4.

In the above configuration, when the user starts the sterilization operation of the device, the hypochlorous acid aqueous solution in fine particles is supplied from the bifluid nozzle 44 into the indoor space 4 with the hypochlorous acid gas, and the sterilization is performed. Will be done. At the same time, the water contained in the hypochlorous acid aqueous solution is vaporized, and as a result, humidification is also performed.

As shown in FIG. 4, the sterilization operation ends when a predetermined time elapses according to the count of the timer 24. When the sterilization operation is completed, the indoor humidity detection unit 17 detects the relative humidity of the indoor space 4.

When the relative humidity exceeds 60% of the threshold value at this time, the ventilation operation determining means 28 detects the outdoor humidity by the outdoor humidity detecting unit 18. When the relative humidity of the outdoor air is lower than the relative humidity of the indoor space 4, a signal is sent from the ventilation operation means 27 to the ventilation device 3 side, and the operation device 35 operates the blower device 33. The outdoor air is sent to the indoor space 4 by the operation of the blower 33, and the air in the indoor space 4 is discharged to the outside from the ventilation port 8. That is, ventilation operation is carried out. During the ventilation operation, the humidity is determined based on the relative humidity detection of the indoor space 4 at regular intervals by the timer operation, and when the relative humidity of the indoor space 4 becomes less than 60%, a signal is sent from the ventilation operation means 27 to the operation device 35. The ventilation operation is completed.

In addition, also in this embodiment, the liquid supply device 13 and the humidification operation determination means 36 can be provided as in the second embodiment.

That is, as shown in FIG. 8, the air purification device 42 includes a liquid supply device 13. The liquid supply device 13 includes a hypochlorous acid supply unit 14 that stores a hypochlorous acid aqueous solution and a water supply unit 16 that stores water, and supplies either the hypochlorous acid aqueous solution or water. It is possible to select. The hypochlorous acid supply unit 14 and the water supply unit 16 supply the stored liquid to the indoor space 4.

A pump 15 and a compressor 46 (not shown) are provided in each of the hypochlorite supply unit 14 and the water supply unit 16, and the pump 15 and the compressor 46 that receive the signal of the control unit 19 liquid to the bifluid nozzle 44. Can be selected from the supply of hypochlorous acid aqueous solution and water.

That is, water can be supplied from the water supply unit 16 to the two-fluid nozzle 44, and the relative humidity of the indoor space 4 can be increased by the finely divided water. Thereby, the effect of sterilization by hypochlorous acid can be enhanced.

As described above, the liquid supply device 13 is provided with the hypochlorous acid supply unit 14 storing the hypochlorous acid aqueous solution and the water supply unit 16 storing water, and either one of the hypochlorous acid aqueous solution and water is provided. Being able to select the supply also facilitates humidification. That is, it is not necessary to provide a special humidifying device.

It relates to an air purification system that sterilizes a target space represented by a room, and is useful because the humidity of the target space can be adjusted to improve the sterilization effect.

1 Air purification system 2 Air purification device 3 Ventilation device 4 Indoor space 5 Suction port 6 Air outlet 7 Air outlet 8 Ventilation port 9 Housing 10 Air passage 11 Blower 12 Liquid miniaturization room 13 Liquid supply device 14 Hypochlorite supply Unit 15 Pump 16 Water supply unit 17 Indoor humidity detection unit 18 Outdoor humidity detection unit 19 Control unit 20 Rotating plate 21 Collision wall 22 Pumping pipe 23 Motor 24 Timer 26 Bactericidal operation means 27 Ventilation operation means 28 Ventilation operation judgment means 29 Intake port 30 Housing 31 Air supply air passage 32 Rotating shaft 33 Blower 34 Air purification filter 35 Operation device 36 Humidity operation judgment means 44 Two-fluid nozzle 46 Compressor

Claims (3)

It is equipped with an air purification device and a ventilation device, and the air purification device supplies a finely divided hypochlorous acid aqueous solution to the indoor space, and has an indoor humidity detector that detects the relative humidity of the indoor space. The ventilation device includes an outdoor humidity detection unit that detects the relative humidity of the outdoor air and a control unit that determines the operation of the air purification device and the ventilation device, and the ventilation device has an exhaust air passage and an air purification filter. The control unit includes an operating device that operates according to the signal of the control unit, and the control unit operates a sterilization operation means for operating the air purification device as a sterilization operation and a ventilation operation for operating the ventilation device as a ventilation operation. The ventilation operation determination means includes means and a ventilation operation determination means for determining the operation and stop of the ventilation device from the signals of the indoor humidity detection unit and the outdoor humidity detection unit, and the ventilation operation determination means determines the indoor humidity after the sterilization operation. An air purification system that operates the ventilation device so that it is below the value. After the sterilization operation means finishes the sterilization operation, the ventilation operation determination means detects the relative humidity of the indoor space by the indoor humidity detection unit and determines that the relative humidity of the indoor space is 60% or more. In addition, the relative humidity of the outdoor air detected by the outdoor humidity detector is compared with the relative humidity of the indoor space, and when the relative humidity in the room is high, the ventilation device is operated, and then the indoor humidity is detected. The air purification system according to claim 1, wherein the unit detects humidity and stops the operation of the ventilation device when the relative humidity in the indoor space becomes lower than 60%. A liquid supply device for selectively supplying one of a hypochlorous acid aqueous solution and water for the liquid to be supplied to the indoor space is provided, and the control unit is provided with a humidification operation determination means for determining the necessity of the humidification operation. The humidifying operation determining means detects the relative humidity of the indoor space by the indoor humidity detecting unit, and the liquid supply device so that the relative humidity of the indoor space exceeds a predetermined value before the start of the sterilizing operation by the sterilizing operation means. The air purification system according to claim 1 or 2, wherein the air purification system receives water from the air and raises the relative humidity of the indoor space with the finely divided water.

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