JP2022030134A - Ozone sterilization device - Google Patents

Abstract

To provide an ozone sterilization device that has excellent safety management of ozone that affects the human body.SOLUTION: Provided is an ozone sterilization device 1 that comprises one or more ozone sterilization device main bodies 10 including an intake fan, an ozone generator, a send-out fan and an ozone decomposer, an ozone sensor 11 as a detector that is placed outside the ozone sterilization device main bodies 10 and monitors the ozone concentration in the enclosed space 2, and a controller 12 for controlling the operation of at least the intake fan, ozone generator and send-out fan based on the ozone concentration detected by the ozone sensor 11.SELECTED DRAWING: Figure 1

Description

The present invention relates to an ozone sterilizer that sterilizes a closed space with ozone, particularly an ozone sterilizer that is excellent in safety management of ozone that affects the human body.

Ozone is a gas with strong oxidizing power and is used in sterilization technology for water purification equipment and air purification equipment. With the spread of the new coronavirus (COVID-19), the demand for sterilizers is increasing, and the use of ozone is increasing. In university research, on May 14, 2nd year of Reiwa, a research group at Nara Medical University announced that it was the first in the world to confirm the inactivation of the new coronavirus by exposure to ozone gas.

As a technique using an ozone sterilizer, for example, as shown in Document 1, an ozone generator is installed at a required position on the inner surface surrounding the storage space, clothes such as a lab coat are stored in the space, and the hygiene of the clothes is hygiene. Some are designed to increase the degree.

Japanese Unexamined Patent Publication No. 8-150194

However, since high-concentration ozone has a risk of affecting the human body, it is indispensable to control the ozone concentration in the space when using an ozone sterilizer.

Therefore, an object of the present invention is to provide an ozone sterilizer having excellent safety management of ozone that affects the human body.

Hereinafter, a plurality of aspects will be described as means for solving the problem. These aspects can be arbitrarily combined as needed.

The characteristic configuration of the ozone sterilizer according to the present invention is an intake fan that takes in air in a closed space from an intake port, an ozone generator that generates ozone, and an air outlet that sends out air that has passed through the ozone generator and seals it. One or more ozone sterilizer main bodies equipped with a sending fan that fills the space and an ozone decomposer that decomposes ozone, and ozone that is arranged as a detector outside the ozone sterilizer main body and monitors the ozone concentration in a closed space. It is equipped with a sensor and a controller that is located inside the ozone sterilizer body or outside the ozone sterilizer body and controls at least the operation of the intake fan, ozone generator, and transmission fan based on the ozone concentration detected by the ozone sensor. ing.

With this configuration, the sterilization process is performed from the start to the end (more specifically, the three stages of generation, sterilization, and decomposition) while monitoring the ozone concentration in the enclosed space, so a CT value (Concentration-Time) that provides a sufficient sterilization effect can be obtained. Value: Gas concentration ppm x time min) is reached in a short time from the start of sterilization treatment, and after that, the ozone concentration in the enclosed space becomes non-harmful to the human body without continuing unnecessary sterilization treatment. It can be reached in a short time and is extremely efficient. Therefore, the ozone sterilizer of the present invention is excellent in safety management of a closed space.

As one embodiment, it is preferable that a plurality of ozone sensors are dispersed and arranged in a closed space. For example, it is more preferable that the ozone sensor is arranged at least near the ceiling in the closed space.

With this configuration, the ozone concentration is monitored at a plurality of dispersed locations, so that the ozone filling condition in the enclosed space can be accurately grasped. Ozone is heavier than air and descends toward the floor of a closed space, so the degree of ozone diffusion varies depending on the location even in a closed space. For example, in the vicinity of the ceiling of a closed space, especially in a cubic closed space, the arrival of ozone at the four corners is delayed. Therefore, by distributing the ozone sensors in a closed space, it is confirmed that ozone is distributed to every corner.

As one embodiment, the controller is provided with one or more ozone sterilizer bodies while the outlet is further provided with a sending side wind direction adjusting plate to send air containing ozone generated from an ozone generator to a closed space. It is preferable to control the sending side wind direction adjusting plate so that the air containing ozone is preferentially sent out in the direction where the ozone concentration is low in the closed space.

With this configuration, when there is a variation in the ozone concentration detected by multiple ozone sensors dispersed in the closed space at the ozone generation stage and the ozone sterilization stage, priority is given to the direction in which the ozone concentration is low in the closed space. By sending out air containing ozone, it is possible to eliminate the variation in ozone concentration in the enclosed space. As a result, a sufficient sterilizing effect can be obtained at all points in the closed space, and the CT value can be reached in a short time from the start of the sterilizing treatment.

As another aspect of providing a wind direction adjusting plate on the sending side, the controller increases the amount of ozone sterilizer sent out for the ozone sterilizer main body that preferentially sends out air containing ozone in the direction of low ozone concentration. In addition, it is preferable to control the transmission fan.

With this configuration, it becomes easier to eliminate the variation in ozone concentration in the enclosed space at the ozone generation stage and the ozone sterilization stage.

As one embodiment, the intake port is further provided with an intake side wind direction adjusting plate, and a controller is provided for one or more ozone sterilizer main bodies while the ozone decomposer decomposes ozone contained in the air taken in from the closed space. However, it is preferable to control the intake side wind direction adjusting plate so that the air containing ozone is preferentially taken in from the direction in which the ozone concentration is high in the closed space.

With this configuration, when there is a variation in the ozone concentration detected by multiple ozone sensors dispersed in a closed space at the ozone decomposition stage, ozone is preferentially contained in the closed space from the direction in which the ozone concentration is high. By inhaling air, it is possible to eliminate variations in the ozone concentration in the enclosed space. As a result, it is possible to reach a state in which the ozone concentration is not harmful to the human body in a short time at all points in the enclosed space.

As another aspect of providing the intake side wind direction adjusting plate, the controller increases the intake amount of the ozone sterilizer main body for the ozone sterilizer main body that preferentially sucks the air containing ozone from the direction where the ozone concentration is high. In addition, it is preferable to control the intake fan.

With this configuration, it becomes easier to eliminate the variation in ozone concentration in the enclosed space at the ozone decomposition stage.

In one embodiment, the outlet is further provided with a delivery side wind direction adjusting plate.
While sending air into the enclosed space
For one or more ozone sterilizer bodies, the controller sets the sending side wind direction adjustment plate toward the floor so that the air in the enclosed space is agitated based on the ozone concentration detected by the ozone sensors arranged in a distributed manner. It is preferable to control toward.

With this configuration, when there are variations in the ozone concentration detected by multiple ozone sensors distributed in a closed space during the ozone generation, sterilization, and decomposition stages, the air is directed toward the floor on the sending side wind direction adjustment plate. By sending out, the air in the closed space is agitated, and the variation in ozone concentration in the closed space can be eliminated. More preferably, the air delivered toward the floor is changed horizontally in order to increase the degree of stirring.

As one embodiment, an air circulator that agitates the air in the enclosed space is further provided toward the floor.
It is preferable that the controller controls the operation of the air circulator based on the ozone concentration detected by the ozone sensors arranged in a plurality of dispersed areas.

With this configuration, when there is a variation in the ozone concentration detected by multiple ozone sensors distributed in a closed space during the ozone generation, sterilization, and decomposition stages, the air is sent from the air circulator toward the floor. As a result, the air in the closed space is agitated, and the variation in the ozone concentration in the closed space can be eliminated.

In one embodiment, the enclosed space or the ozone sterilizer body further comprises an exhaust means for exhausting air containing 0.1 ppm or less of ozone from the enclosed space, and the controller exhausts the air based on the ozone concentration detected by the ozone sensor. It is preferable to control the operation of the means.

With this configuration, after the ozone concentration reaches 0.1 ppm or less, which is not harmful to the human body, at all parts of the closed space at the ozone decomposition stage, the air that is not harmful to the human body is exhausted from the closed space by the exhaust means. Ozone in a closed space can be removed at once. Therefore, since the decomposition time by the ozone decomposer (filter) in the main body of the ozone sterilizer is reduced, the life of the ozone decomposer can be extended and the number of replacements of the ozone decomposer can be reduced.

As one embodiment, a status indicator is further provided, which is arranged outside the closed space and variably displays whether or not access to the closed space is possible, and the controller operates the status indicator based on the ozone concentration detected by the ozone sensor. It is preferable to control it.

With this configuration, when the ozone sensor detects that the ozone concentration in the enclosed space is high in a state harmful to the human body, the controller operates the status indicator to indicate that the enclosed space cannot be entered. On the contrary, when the ozone sensor detects that the ozone concentration in the closed space is low enough to be harmless to humans, the controller operates the status display to indicate that the closed space can be entered. As a result, it is possible to visually know whether or not to enter the closed space by staying outside the closed space.

As one embodiment, it is preferable that an electric lock for locking and unlocking the door of the entrance / exit of the closed space is further provided, and the controller controls the operation of the electric lock based on the ozone concentration detected by the ozone sensor.

With this configuration, when the ozone sensor detects that the ozone concentration in the closed space has become harmful to the human body, the controller operates an electric lock to lock the door of the entrance / exit of the closed space. On the contrary, when the ozone sensor detects that the ozone concentration in the closed space is low enough to be harmless to humans, the controller activates the electric lock to unlock the door of the entrance / exit of the closed space. As a result, even if a person tries to enter the closed space without knowing that the air having a harmful ozone concentration is filled in the closed space, the door cannot be opened because it is locked.

As one embodiment, the controller is arranged as another detector in the enclosed space, further equipped with a motion sensor for monitoring the movement of a person, and the controller is ozone based on the movement of the person in the enclosed space detected by the motion sensor. It is preferable to control the operation of the generator.

With this configuration, when the ozone sensor detects the presence of a person in the enclosed space before or at the start of ozone sterilization, the controller does not start the operation of the ozone generator, or even if it starts, it stops immediately. Conversely, if the ozone sensor does not detect the presence of a person in the enclosed space before or at the start of ozone sterilization, the controller will start or continue to operate the ozone generator. As a result, when there is a person in the closed space, the air in the closed space does not have an ozone concentration harmful to the human body.

As one embodiment, a motion sensor arranged as another detector near the entrance / exit of the enclosed space and an alarm for issuing an alarm are further provided, and based on the movement of a person near the entrance / exit detected by the motion sensor. Therefore, it is preferable that the controller controls the operation of the alarm.

With this configuration, when the ozone sensor detects the presence of a person near the entrance / exit of the closed space during ozone sterilization, the controller activates an alarm to warn the person near the entrance / exit of the closed space that ozone sterilization is in progress. do. As a result, it is possible to prevent people from entering the closed space during ozone sterilization.

As another aspect of having a motion sensor and an alarm, it is arranged as a separate detector near the doorway of the enclosed space, further equipped with a camera for monitoring the movement of a person, and near the doorway detected by the motion sensor and the camera. It is preferable that the controller controls the operation of the alarm based on the movement of a person.

With this configuration, if the presence of a person near the entrance / exit of a closed space is detected not only by the ozone sensor but also by the camera during ozone sterilization, double monitoring is performed, which further enhances safety.

In one embodiment, it is preferred that at least one of the detectors, the controller and the communication between the devices controlled by the controller is wireless.

This configuration eliminates the need for cables for communication, increasing the degree of freedom in installing each device in a closed space. This is particularly remarkable in the mode in which a plurality of ozone sensors are dispersed and arranged in a closed space.

As one embodiment, it is preferable to further include an administrator terminal in which the detection information from the detector and the operation status information from the controller are transmitted wirelessly.

With this configuration, the information transmitted wirelessly is displayed on the administrator terminal, so that the operating status of the ozone sterilizer can be easily managed from a remote location.

In one embodiment, it is preferred that the enclosed space is indoors, floors, indoors or in a vehicle.

In the present invention, it is possible to obtain an ozone sterilizer having excellent safety management of ozone that affects the human body.

Explanatory drawing which shows ozone sterilization apparatus which is 1st Embodiment of this invention Explanatory drawing which shows an example of the structure of the ozone sterilizer main body in this invention. Explanatory drawing which shows an example of arrangement of ozone sensor in this invention Explanatory drawing which shows an example of a delivery port in 2nd Embodiment of this invention. Explanatory drawing which shows an example of the air flow from a delivery port in 2nd Embodiment of this invention. Explanatory drawing which shows an example of the intake port in 3rd Embodiment of this invention Explanatory drawing which shows an example of the air flow to an intake port in 3rd Embodiment of this invention. Explanatory drawing which shows an example of air circulation in 4th Embodiment of this invention. Explanatory drawing which shows an example of air circulation in 5th Embodiment of this invention. Explanatory drawing which shows an example of exhaust in 6th Embodiment of this invention Explanatory drawing which shows an example of access permission display in 7th Embodiment of this invention Explanatory drawing which shows an example of the doorway lock in 8th Embodiment of this invention Explanatory drawing which shows an example of absence confirmation in 9th Embodiment of this invention Explanatory drawing which shows an example of approach alarm in 10th Embodiment of this invention Explanatory drawing which shows another example of the structure of the ozone sterilizer main body in this invention. Explanatory drawing which shows another example of arrangement of ozone sterilizer main body in this invention Explanatory drawing which shows another example of arrangement of ozone sterilizer main body in this invention Explanatory drawing which shows an example of an administrator terminal in this invention

[First Embodiment]
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. In the drawings submitted with respect to the present invention, parts of the drawings that overlap with the drawings described above may be partially omitted or simplified in order to make the drawings easier to understand.
FIG. 1 is an explanatory diagram showing an ozone sterilizer according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram showing an example of the structure of the ozone sterilizer main body in the present invention. FIG. 3 is an explanatory diagram showing an example of the arrangement of the ozone sensor in the present invention.

(1) Overall Structure of Ozone Sterilizer The ozone sterilizer 1 of the present invention sterilizes the enclosed space 2 with ozone. The closed space 2 is sealed during ozone sterilization treatment and normally allows people to enter and exit by opening and closing the door of the doorway. For example, it is indoors, in a floor, indoors, or in a vehicle. A bus will be described as an example.
As shown in FIG. 1, the ozone sterilizer 1 of the present invention is arranged outside the ozone sterilizer main body 10, the ozone sensor 11 arranged as a detector outside the ozone sterilizer main body 10, and the ozone sterilizer main body 10. The controller 12 and the like are provided. In the example shown in FIG. 1, the ozone sterilizer main body 10 is arranged at one location on each side between the ceiling and the center of the side surface.

(2) Ozone sterilizer main body As shown in FIG. 2, the ozone sterilizer main body 10 has an intake fan 5 for sucking air 3 in a closed space 2 from an intake port 4, an ozone generator 6 for generating ozone, and ozone. It includes a delivery fan 8 that sends out the air 3 that has passed through the generator 6 from the delivery port 7 to fill the enclosed space 2, and an ozone decomposer 9 that decomposes ozone.
In the example shown in FIG. 2, the intake fan 5, ozone decomposer 9, ozone generator 6, and transmission fan 8 constituting the ozone sterilizer main body 10 are arranged in series in this order, and air 3 moves between them. .. The order of the ozone decomposer 9 and the ozone generator 6 may be changed, or the ozone decomposer 9 and the ozone generator 6 may be arranged in parallel (see FIG. 15).
Further, the air 3 that has moved in the ozone sterilizer main body 10 enters and exits the closed space 2 through the intake port 4 and the delivery port 7. In the example shown in FIG. 1, two ozone sterilizer main bodies 10 are integrally arranged outside the bus constituting the enclosed space 2, and as shown in FIG. 2, only the intake port 4 and the delivery port 7 are buses. It is in contact with the closed space 2 inside.

As the ozone generator 6, a known ozone generator 6 can be used.
The ozone generation method of the ozone generator 6 is roughly classified into a silent discharge method, an ultraviolet lamp method, a corona discharge method, and the like, and the most common method is a silent discharge method or a corona discharge method.
Dielectric discharge is a discharge phenomenon observed when a dielectric is provided between parallel electrodes, oxygen gas, dry air, or the like is supplied between them, and an AC high voltage is applied between the two electrodes. Further, there is creeping discharge as a kind of silent discharge. For creeping discharge, a surface electrode (dielectric electrode) is provided on one side and a wire electrode (discharge electrode) is provided on the other side of the dielectric, and when an AC high voltage is applied between these two electrodes, discharge occurs between the discharge electrode and the dielectric. At this time, a pale discharge is observed along the periphery of the wire electrode. The corona discharge is also a discharge similar to the silent discharge.
In the ozone generation principle, as the first step, the electrons released into the gas by the above-mentioned various discharges are made to collide with stable oxygen molecules and dissociated into oxygen atoms. As the second step, ozone is formed by the collision of three bodies.

As the ozone decomposer 9, a known one can be used.
As the ozone decomposition method of the ozone decomposition device 9, an activated carbon adsorption method is generally used in the low concentration range, and a filter such as the catalytic decomposition method is suitable in the high concentration range. Further, the catalytic decomposition method and the activated carbon adsorption method may be combined to decompose high-concentration ozone at once.
In the activated carbon adsorption method, ozone reacts with activated carbon and is decomposed. That is, carbon is oxidized to produce carbon dioxide gas and carbon monoxide. In the catalytic decomposition method, the catalyst is heated to 50 to 150 ° C. and used to reduce the activation energy of the ozone self-decomposition reaction. Examples of the ozone decomposition catalyst include silica (SiO ₂ ), alumina (Al ₂ O ₃ ), manganese dioxide (Mn O ₂ ) and the like. Among them, manganese dioxide-based catalysts are widely used because of their high ozone decomposition efficiency. Further, efficiency can be improved by using a catalyst having a honeycomb structure.

As shown in FIG. 2, the intake fan 5 is arranged in the vicinity of the intake port 4 in the ozone sterilizer main body 10 and rotates to generate an air flow from the intake port 4 to the delivery port 7. As described above, in the present embodiment, the intake fan 5, the ozone decomposer 9, the ozone generator 6, and the transmission fan 8 are arranged in series in this order, so that the air 3 taken in from the closed space 2 by the intake fan 5 Flows in the order of the ozone decomposer 9 and the ozone generator 6. As the intake fan 5, a known one can be used.

As shown in FIG. 2, the delivery fan 8 is arranged in the vicinity of the delivery port 7 in the ozone sterilizer main body 10 and rotates to generate an air flow from the intake port 4 to the delivery port 7. As described above, in the present embodiment, the intake fan 5, the ozone decomposer 9, the ozone generator 6, and the transmission fan 8 are arranged in series in this order, so that the ozone decomposer 9 and the ozone generator 6 flow in this order. The air 3 that has arrived is sent out to the enclosed space 2 by the sending fan 8. As the transmission fan 8, a known one can be used.

Since ozone gas is heavier than air, it naturally falls over time. Utilizing this property, it is efficient to provide the delivery port 7 of the ozone sterilizer main body 10 near the ceiling of the closed space 2.

(3) Ozone sensor The ozone sensor 11 monitors the ozone concentration in the enclosed space 2.
The ozone concentration of the closed space 2 is monitored firstly by ensuring the safety of the closed space 2 so that when a person enters the closed space 2 sterilized by the high concentration ozone, there is no influence on the person. This is to secure it. Specifically, it monitors whether the ozone concentration is sufficiently low to 0.1 ppm or less, which is a safety standard. The ACGIH (American Government-related Industrial Hygiene Council) in the United States and the Japan Society for Occupational Health Allowable Concentration Committee have set 0.1 ppm as the allowable concentration in the working environment (8-hour average value).

The ozone concentration in the closed space 2 is monitored secondly to ensure the necessary sterilizing effect when the inside of the closed space 2 is sterilized by a high concentration of ozone. Specifically, it is monitored whether or not the ozone concentration is sufficiently high to at least about 0.5 ppm required for sterilization.

As the ozone sensor 11, for example, a semiconductor gas sensor using ITO (indium-tin composite oxide) as a gas sensitive material can be used. The semiconductor type gas sensor detects gas by using the redox reaction that occurs when a thin film of gas-sensitive material formed on an alumina substrate is heated by a heater. Further, another type of gas sensor may be used.

It is preferable that a plurality of ozone sensors 11 are dispersed and arranged in the closed space 2. For example, in the example shown in FIG. 3, the enclosed space 2 has a cubic shape, and ozone sensors 11 are arranged at four corners near the ceiling.
Since the ozone sterilizer 1 configured in this way monitors the ozone concentration at a plurality of dispersed locations, it is possible to accurately grasp the degree of ozone filling in the enclosed space 2.
For example, ozone is heavier than air and descends toward the floor of the closed space 2, so that the degree of ozone diffusion tends to differ depending on the location even in the closed space 2. That is, the ozone concentration is low near the ceiling of the closed space 2, and the ozone concentration is high near the floor of the closed space 2.
Further, as shown in FIG. 2, when only the intake port 4 and the delivery port 7 are in contact with the closed space 2 inside the bus, the opening surfaces of the intake port 4 and the delivery port 7 are parallel to the wall surface of the closed space 2. be. This is because the efficiency of sending or taking in air 3 to the entire inside of the enclosed space 2 is the highest. However, in the case of the cubic closed space 2 as in the example bath, the ozone arrival to the four corners is delayed, so that the ozone diffusion condition tends to differ depending on the location even in the closed space 2. That is, the ozone concentration is low near the four corners of the closed space 2, and the ozone concentration is high near the floor of the central space 2.
Therefore, by arranging the ozone sensors 11 in the enclosed space 2 in a dispersed manner, it can be confirmed that ozone is distributed to every corner.

The distributed arrangement of the ozone sensor 11 in the present embodiment is not limited to the vicinity of the ceiling, and as shown in FIG. 3, the ozone sensor 11 can be appropriately arranged in other places as well.

(4) Controller In the present embodiment, the controller 12 controls the operation of the intake fan 5, the ozone generator 6, and the transmission fan 8 based on the ozone concentration detected by the ozone sensor.
For example, the amount of ozone in the enclosed space 2 is adjusted by controlling the on / off of the intake fan 5, the ozone generator 6 and the transmission fan 8 and the rotation speeds of the intake fan 5 and the transmission fan 8. Further, when the ozone decomposer 9 is a catalytic decomposition method, the on / off of the heater is also controlled.

(5) Wireless communication In the present embodiment, all communication between the above-mentioned devices controlled by the ozone sensor 11, the controller 12, and the controller 12 is wireless 21 (see FIGS. 1 and 2). In addition, in FIG. 1, the depiction of the radio 21 is partially omitted for the sake of simplification of the drawing.
Wireless communication eliminates the need for cables connecting devices, increasing the degree of freedom in installing each device in the enclosed space 2. This is particularly remarkable in the present embodiment in which a plurality of ozone sensors 11 are dispersed and arranged in the enclosed space 2.

(6) Ozone sterilization treatment Ozone is extremely unstable and decomposes to release oxygen (O) in the developmental stage, which is highly reactive. Therefore, substances that come into contact with ozone are immediately oxidized. It is thought that such a strong oxidizing power changes the function by acting on the cell wall and cell membrane of the bacterium, and finally dissolves the bacterium. It has also been confirmed that the virus directly destroys RNA and DNA by ozone and loses its activity. In the present specification, it is referred to as sterilization including inactivation.

Various bacteria and viruses that are sterilized by ozone include, for example, Escherichia coli, Staphylococcus aureus (MRSA), green pus, influenza virus, rabbit disease, coccidiodes fungus, Ebola virus, variola virus, salmonella, O-157, and so on. Examples include cholera, seleus, and coronavirus.

The ozone sterilization process consists of three stages: generation, sterilization, and decomposition. Each will be described below.

In the ozone generation stage, the intake fan 5, the ozone generator 6, and the transmission fan 8 of the ozone sterilizer main body 10 are on (here, the case where the ozone decomposer 9 is an activated carbon adsorption method will be mainly described).
In the example shown in FIGS. 1 and 2, by rotating the intake fan 5, the air 3 in the closed space 2 is sucked into the ozone sterilizer main body 10 from the intake port 4. The intake air 3 moves in the order of the ozone decomposer 9 and the ozone generator 6. The ozone in the air 3 is decomposed by the ozone decomposer 9, and the ozone newly generated by the ozone generator 6 is contained in the air 3. At this time, the amount of ozone generated is larger than the amount of ozone decomposition. do. By rotating the sending fan 8, the newly generated air 3 containing ozone is sent out one after another from the sending port 7. By repeating this, the air 3 is circulated between the ozone sterilizer main body 10 and the closed space 2, and the closed space 2 is filled with ozone.
The same applies to the case where the ozone decomposer 9 and the ozone generator 6 are arranged in the same order.
Further, in the case where the ozone decomposer 9 and the ozone generator 6 are arranged in parallel, the ozone generation amount may be larger than the ozone decomposition amount, and as shown in FIG. 15, the intake fan 5 and the ozone may be arranged. An on-off valve 30 may be provided between the decomposer 9 and the ozone generator 6 to allow the air 3 to pass only through the ozone generator 6. In the latter case, the controller 12 controls the opening and closing of the on-off valve 30.
Further, when the ozone cracker 9 is a catalytic cracking method, the heater heating is off, so that ozone is less likely to be decomposed at the ozone generation stage.

When the ozone concentration becomes sufficiently high to the ozone concentration required for sterilization, that is, to at least about 0.5 ppm, the ozone generation stage shifts to the ozone sterilization stage.
In the ozone sterilization step, the ozone concentration in the closed space 2 is maintained until a predetermined time so as to have a CT value at which a sufficient sterilization effect can be obtained. The CT value depends on the type of bacteria and virus that are sterilized by ozone. For example, there is a document that 99% of E. coli is killed in 1 ppm 60 minutes (CT value 60).
At this time, the intake fan 5, the ozone generator 6, and the transmission fan 8 of the ozone sterilizer main body 10 may be completely turned off, but as described above, the ozone concentration is low near the ceiling of the closed space 2 and the closed space. Since the ozone concentration tends to be high near the floor of 2, when it is detected that the ozone concentration near the ceiling of the closed space 2 is too low, on / off is appropriately controlled.

After reaching a CT value at which a sufficient sterilizing effect can be obtained, the ozone sterilization stage is shifted to the ozone decomposition stage.
In the ozone decomposition stage, the intake fan 5 and the transmission fan 8 of the ozone sterilizer main body 10 are in the on state, and the ozone generator 6 is in the off state (here, the case where the ozone decomposition device 9 is the activated carbon adsorption method will be mainly described. do).
In the example shown in FIGS. 1 and 2, by rotating the intake fan 5, the air 3 containing ozone in the enclosed space 2 is sucked into the ozone sterilizer main body 10 from the intake port 4. The intake air 3 moves in the order of the ozone decomposer 9 and the ozone generator 6. At this time, the ozone in the air 3 is decomposed by the ozone decomposer 9, but is not newly generated by the ozone generator 6 in the off state. Therefore, ozone is only decomposed at this time. By rotating the delivery fan 8, the decomposed air 3 containing ozone is sent out to the closed space 2 one after another from the delivery port 7. By repeating this, the ozone in the closed space 2 is removed while the air 3 is circulated between the ozone sterilizer main body 10 and the closed space 2.
The same applies to the case where the ozone decomposer 9 and the ozone generator 6 are arranged in the same order, and the case where the ozone decomposer 9 and the ozone generator 6 are arranged in parallel.
Further, when the ozone cracker 9 is a catalytic cracking method, it is necessary to turn on the heater heating.

After that, the ozone concentration in the closed space 2 is monitored, and the ozone sterilization treatment is completed when at least the state is not harmful to the human body.

As described above, the ozone sterilizer 1 of the present invention performs from the start to the completion of the sterilization process while monitoring the ozone concentration in the closed space 2, so that the CT value at which a sufficient sterilization effect can be obtained is short from the start of the sterilization process. It can be reached in a short time until the sterilization treatment is completed so that the ozone concentration in the sealed space 2 is not harmful to the human body without continuing unnecessary sterilization treatment.

[Second Embodiment]
FIG. 4 is an explanatory diagram showing an example of a delivery port according to the second embodiment of the present invention. FIG. 5 is an explanatory diagram showing an example of the air flow from the delivery port in the second embodiment of the present invention.
In the present embodiment, in addition to the configuration of the first embodiment, the delivery port 7 further includes a delivery side wind direction adjusting plate 13 (see FIG. 4). While the air 3 containing ozone generated from the ozone generator 6 is sent out to the closed space 2, the controller 12 preferentially emits ozone in the closed space 2 in the direction where the ozone concentration is low. The sending side wind direction adjusting plate 13 is configured to be controlled by radio 21 so as to send out the contained air 3 (see FIG. 5).

As described in the section on the distributed arrangement of the ozone sensor 11, ozone is heavier than air and descends toward the floor of the closed space 2, so that the degree of ozone diffusion varies depending on the location even in the closed space 2. In this embodiment, the efficiency of ozone generation and ozone sterilization is improved in consideration of this difference between the ozone generation stage and the ozone sterilization stage. “Low”, “medium”, and “high” in FIG. 5 indicate that the ozone concentrations detected by the ozone sensor 11 at the time of generation were low concentration, medium concentration, and high concentration, respectively.

As shown in FIG. 4, a flap 24 and a louver 25 for changing the flow of the air to be sent out 3 are installed at the delivery port 7 as an example of the wind direction adjusting plate 13 on the delivery side.

The flap 24 is a long plate-shaped member, and is installed at the delivery port 7 so that the longitudinal direction is parallel to the horizontal direction. The flap 24 rotates about an axis parallel to the longitudinal direction of the flap 24. As a result, the flap 5 can adjust the wind direction of the air 3 sent out from the outlet 7 in the vertical direction.

The louver 25 is a long plate-shaped member, and is installed at the delivery port 7 so that the longitudinal direction is parallel to the vertical direction. The louver 25 rotates about an axis parallel to the longitudinal direction of the louver 25. As a result, the louver 25 can adjust the wind direction of the air 3 blown out from the delivery port 7 in the left-right direction.

Only one of the flap 24 and the louver 25 may be installed at the delivery port 7. Further, the number of flaps 24 and louvers 25 is not limited to that shown in FIG. 4, and a necessary number of flaps 24 can be appropriately installed. For example, only one flap 24 or louver 25 may be used.

In the ozone sterilizer 1 configured in this way, when there is a variation in the ozone concentration detected by a plurality of ozone sensors 11 dispersed in the closed space 2 at the ozone generation stage and the ozone sterilization stage, the closed space By preferentially sending out the air 3 containing ozone in the direction in which the ozone concentration is low, it is possible to eliminate the variation in the ozone concentration in the closed space 3. As a result, a sufficient sterilizing effect can be obtained in all the parts of the closed space 2, and the CT value can be reached in a short time from the start of the sterilizing treatment.

If the controller 12 further controls the delivery fan 8 so as to increase the delivery amount of the ozone sterilizer main body 10, it becomes easier to eliminate the variation.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Third Embodiment]
FIG. 6 is an explanatory diagram showing an example of an intake port according to a third embodiment of the present invention. FIG. 7 is an explanatory diagram showing an example of air flow to the intake port according to the third embodiment of the present invention.
In the present embodiment, in addition to the configuration of the first embodiment, the intake port 4 further includes an intake side wind direction adjusting plate 14 (see FIG. 6). Further, in the present embodiment, while the ozone decomposer 9 decomposes ozone contained in the air 3 taken in from the closed space 2, the controller 12 of the ozone sterilizer main body 10 causes the ozone concentration in the closed space 2. The intake side wind direction adjusting plate 14 is configured to be controlled by the radio 21 so that the air 3 containing ozone is preferentially taken in from the dark direction (see FIG. 7).

As described in the section on the distributed arrangement of the ozone sensor 11, ozone is heavier than air and descends toward the floor of the closed space 2, so that the degree of ozone diffusion varies depending on the location even in the closed space 2. In this embodiment, the efficiency of ozone decomposition is improved in consideration of this difference at the stage of ozone decomposition. “Low”, “medium”, and “high” in FIG. 7 indicate that the ozone concentrations detected by the ozone sensor 11 at the time of decomposition were low concentration, medium concentration, and high concentration, respectively.

As shown in FIG. 6, a flap 28 and a louver 29 for changing the flow of the intake air 3 are installed in the intake port 4 as an example of the intake side wind direction adjusting plate 14.

The flap 28 is a long plate-shaped member, and is installed at the intake port 4 so that the longitudinal direction is parallel to the horizontal direction. The flap 28 rotates about an axis parallel to the longitudinal direction of the flap 28. As a result, the flap 28 can adjust the wind direction of the air 3 sent from the intake port 4 in the vertical direction.

The louver 29 is a long plate-shaped member, and is installed at the intake port 4 so that the longitudinal direction is parallel to the vertical direction. The louver 29 rotates about an axis parallel to the longitudinal direction of the louver 29. As a result, the louver 29 can adjust the wind direction of the air 3 blown from the intake port 4 in the left-right direction.

Only one of the flap 28 and the louver 29 may be installed in the intake port 4. The number of flaps 28 and louvers 29 is not limited to that shown in FIG. 6, and a necessary number can be appropriately installed. For example, only one flap 28 or louver 29 may be used.

In the ozone sterilizer 1 configured in this way, when there is a variation in the ozone concentration detected by a plurality of ozone sensors 11 dispersed in the closed space 2 at the ozone decomposition stage, ozone in the closed space 2 is used. By preferentially sucking in the air 3 containing ozone from the direction of high concentration, it is possible to eliminate the variation in ozone concentration in the closed space 2. As a result, it is possible to reach a state in which the ozone concentration is not harmful to the human body in a short time at all the locations of the closed space 2.

If the controller 12 further controls the delivery fan 8 so as to increase the delivery amount of the ozone sterilizer main body 10, it becomes easier to eliminate the variation.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Fourth Embodiment]
FIG. 8 is an explanatory diagram showing an example of air circulation in the fourth embodiment of the present invention.
In the present embodiment, the outlet 7 is further provided with the delivery side wind direction adjusting plate 13 as in the second embodiment, and as shown in FIG. 8, the ozone sterilizer is provided while the air 3 is sent to the closed space 2. With respect to the main body 10, based on the ozone concentration detected by a plurality of dispersed ozone sensors 11, the controller 12 sets the sending side wind direction adjusting plate 13 toward the floor so that the air 3 in the closed space 2 is agitated. It is configured to be controlled by radio 21 toward.

Since the structure of the delivery side wind direction adjusting plate 13 of the delivery port 7 is the same as that described in the second embodiment, the description thereof will be omitted.

In the ozone sterilizer 1 configured in this way, there are variations in the ozone concentration detected by the ozone sensors 11 dispersed in the enclosed space 2 at at least one stage of ozone generation, sterilization, and decomposition. At this time, by sending the air toward the floor with the sending side wind direction adjusting plate 13, the air 3 in the closed space 2 is agitated, and the variation in the ozone concentration in the closed space 2 can be eliminated. More preferably, the air delivered toward the floor is changed horizontally in order to increase the degree of stirring.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Fifth Embodiment]
FIG. 9 is an explanatory diagram showing an example of air circulation in the tenth embodiment of the present invention.
In the present embodiment, as shown in FIG. 9, an air circulator 43 for stirring the air 3 in the enclosed space 2 is further provided toward the floor, and ozone detected by a plurality of dispersed ozone sensors 11 is provided. Based on the concentration, the controller 12 is configured to wirelessly control the operation of the air circulator 32.

As the air circulator 32, a known air circulator (circulator) can be used. A similar effect can also be obtained by using an electric fan. Further, a plurality of air circulators 32 may be arranged.

In the ozone sterilizer 1 configured in this way, there are variations in the ozone concentration detected by the ozone sensors 11 dispersed in the enclosed space 2 at at least one stage of ozone generation, sterilization, and decomposition. At this time, by sending air from the air circulator 32 toward the floor, the air 3 in the closed space 2 is agitated, and the variation in the ozone concentration in the closed space 2 can be eliminated.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Sixth Embodiment]
FIG. 10 is an explanatory diagram showing an example of exhaust in the sixth embodiment of the present invention.
In the present embodiment, as shown in FIG. 10, in addition to the configuration of the first embodiment, the closed space 2 further includes an exhaust means 15 for exhausting air 3 containing ozone of 0.1 ppm or less from the closed space 2. The controller 12 is configured to wirelessly control the operation of the exhaust means 15 based on the ozone concentration detected by the ozone sensor 11.

Examples of the exhaust means 15 include a ventilation fan, an automatic opening / closing window (including a skylight), an automatic opening / closing door, and the like.
When the closed space 2 is used as a bus, an automatic opening / closing door, which is an existing facility, can also be used.

In the ozone sterilizer 1 configured in this way, after the ozone concentration reaches a state of 0.1 ppm or less that is not harmful to the human body at all points of the enclosed space 2 at the ozone decomposition stage, the air 3 that is not harmful to the human body is blown. Since the air is exhausted from the closed space 2 by the exhaust means 15, ozone in the closed space 2 can be removed at once. Therefore, since the decomposition time by the ozone decomposer 9 (filter) in the ozone sterilizer main body 10 is reduced, the life of the ozone decomposer 9 can be extended and the number of replacements of the ozone decomposer 9 can be reduced.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[7th Embodiment]
FIG. 11 is an explanatory diagram showing an example of an access permission display according to the seventh embodiment of the present invention.
In the present embodiment, as shown in FIG. 11, in addition to the configuration of the first embodiment, a state indicator 16 is further provided, which is arranged outside the closed space 2 and variably displays whether or not access to the closed space 2 is possible. The controller 12 is configured to wirelessly control the operation of the status display 16 based on the ozone concentration detected by the ozone sensor 11.

A doorway 2a is formed in the closed space 2, and a door 2b that shields the closed space 2 from the outside is provided in the doorway 2a. That is, a person can enter and exit the closed space 2 by opening and closing the door 2b of the doorway 2a.
However, as mentioned above, air 3 containing ozone exceeding 0.1 ppm is harmful to humans. Therefore, it is necessary to know whether or not to enter the closed space 2 by staying outside the closed space 2 so as not to enter the closed space 2 filled with harmful air.

The status display 16 includes, for example, an electric bulletin board that transmits characters and image information using a light emitting diode (LED), a liquid crystal display, a light bulb, or the like, as well as a rotating light or an indicator light that is also used as an alarm device described later. include. As an example of the display, for example, as shown in FIG. 11, "no entry during sterilization", "30 minutes until access is possible" and the like.
When the closed space 2 is used as a bus, as shown in FIG. 11, an electric bulletin board for destination guidance on the front and side surfaces, which is an existing facility, can be used.

In the ozone sterilizer 1 configured in this way, when the ozone sensor 11 detects that the ozone concentration in the sealed space 2 is high in a state harmful to the human body, the controller 12 operates the status display 16 to seal the ozone. It is displayed that the space 2 is inaccessible. On the contrary, when the ozone sensor 11 detects that the ozone concentration in the closed space 2 is low enough to be harmless to humans, the controller 12 operates the state display 16 to allow access to the closed space 2. indicate. As a result, it is possible to visually know whether or not access to the closed space 2 is possible by being outside the closed space 2.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Eighth Embodiment]
FIG. 12 is an explanatory diagram showing an example of an entrance / exit lock according to the eighth embodiment of the present invention.
In the present embodiment, as shown in FIG. 12, in addition to the configuration of the first embodiment, an electric lock 17 for locking and unlocking the door 2b of the entrance / exit 2a of the closed space 2 is further provided, and ozone detected by the ozone sensor 11 is provided. The controller 12 is configured to wirelessly control the operation of the electric lock 17 based on the concentration.

The electric lock 17 is a lock system incorporating a mechanism for electrically locking and unlocking, and a known one can be used.

In the ozone sterilizer 1 configured in this way, when the ozone sensor 11 detects that the ozone concentration in the closed space 2 is high in a state harmful to the human body, the controller 12 operates the electric lock 17 to operate the closed space. The door 2b of the doorway 2a of 2 is locked. On the contrary, when the ozone sensor 11 detects that the ozone concentration in the closed space 2 is low enough to be harmless to humans, the controller 12 operates the electric lock 17 to open the door 2b of the doorway 2a of the closed space 2. Lock. As a result, even if a person tries to enter the closed space 2 without knowing that the air having a harmful ozone concentration is filled in the closed space 2, the door 2b does not open because it is locked.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[9th Embodiment]
FIG. 13 is an explanatory diagram showing an example of absence confirmation in the ninth embodiment of the present invention.
In this embodiment, as shown in FIG. 13, in addition to the configuration of the first embodiment, a motion sensor 18 is arranged in the closed space 2 as a detector separate from the ozone sensor 11 to monitor the movement of a person. Further, the controller 12 is configured to wirelessly control the operation of the ozone generator 6 based on the movement of a person in the enclosed space 2 detected by the motion sensor 18.

The motion sensor 18 is a sensor for detecting the location of a human being.
In the motion sensor 18, infrared rays, ultrasonic waves, visible light, radio waves, combinations thereof, and the like are used.

In the ozone sterilizer 1 configured in this way, when the ozone sensor 11 detects the presence of a person in the enclosed space 2 during ozone sterilization, the controller 12 does not start the operation of the ozone generator 6 or has started. Also stops immediately. On the contrary, if the ozone sensor 11 does not detect the presence of a person in the enclosed space 2 before or at the start of ozone sterilization, the controller 12 starts the operation of the ozone generator 6 or continues even after the start. As a result, when there is a person in the closed space 2, the air in the closed space 2 does not have an ozone concentration harmful to the human body. Further, the controller 12 may not start the operation of not only the ozone generator 6 but also the transmission fan 8, or even if it has started, it may be stopped immediately.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[10th Embodiment]
FIG. 14 is an explanatory diagram showing an example of an approach alarm according to the tenth embodiment of the present invention.
In this embodiment, as shown in FIG. 14, in addition to the configuration of the first embodiment, a motion sensor 18 arranged as another detector near the entrance / exit 2a of the enclosed space 2 and an alarm device 19 that issues an alarm The controller 12 is configured to wirelessly control the operation of the alarm 19 based on the movement of a person in the vicinity of the doorway 2a detected by the motion sensor 18.

Examples of the alarm device 19 include a buzzer, a bell, a synthetic voice, a rotating light, an indicator light, and a combination thereof. Further, the electric bulletin board mentioned in the above-mentioned explanation of the status indicator can be used as an alarm device 19 by displaying it in a dangerous color or blinking it.
When the closed space 2 is used as a bus, as shown in FIG. 14, an intercom speaker, which is an existing facility, can be used.

In the ozone sterilization device 1 configured in this way, when the presence of a person near the entrance / exit 2a of the enclosed space 2 is detected by the ozone sensor during ozone sterilization, the controller 12 operates an alarm device to perform ozone sterilization. To warn a person near the doorway 2a of the closed space 2. As a result, it is possible to prevent a person from entering the seal 2 during ozone sterilization.

More preferably, as shown in FIG. 14, a camera 20 is further provided as another detector in the vicinity of the entrance / exit 2a of the enclosed space 2 to monitor the movement of a person, and is detected by the motion sensor 18 and the camera 20. It is preferable that the controller 12 controls the operation of the alarm 19 based on the movement of a person near the doorway 2a.

The camera 20 is a camera that automatically shoots moving images and still images in conjunction with the motion sensor 18. As shown in FIG. 14, the camera 20 includes a device that is separate from the motion sensor 18 and a device that is integrated with the motion sensor 18.

In the ozone sterilizer 1 configured in this way, if the presence of a person near the entrance / exit 2a of the enclosed space 2 is detected not only by the ozone sensor 11 but also by the camera 20 during ozone sterilization, double monitoring is performed. Increased safety.

Since other points are the same as those of the first embodiment, the description thereof will be omitted.

[Other embodiments]
(1) In each of the above embodiments, an example in which two ozone sterilizer main bodies 10 are arranged in a bus constituting a closed space 2 (see FIG. 1) has been described, but the ozone sterilizer 1 of the present invention has been described. Not limited to this.
For example, only one ozone sterilizer main body 10 may be arranged, or three or more may be arranged.

(2) Further, in each of the above embodiments, the ozone sterilizer main body 10 is integrated on the outside of the bus constituting the closed space 2, and only the intake port 4 and the delivery port 7 are in contact with the closed space 2 inside the bus. Although an example (see FIGS. 1 and 2) has been described, the ozone sterilizer 1 of the present invention is not limited thereto.
For example, the ozone sterilizer main body 10 may be separate from the bath constituting the closed space 2. For example, the ozone sterilizer main body 10 may be a stationary type or a robot type that can be brought into the bus (see FIG. 16). In the case of the robot type, the air 3 can be freely sent out by moving in the horizontal direction by the radio 21 or by rotating a part or the whole of the robot around the vertical line. Further, as a modification of the robot type, it may float and move in the air like a drone. Further, the outlet 7 and the intake port 4 may be fitted in the gap of the window via the hose 31 or the like by arranging the ozone sterilizer main body 10 near the bus (see FIG. 17).
Since the ozone sterilizer 1 configured in this way is separate from the ozone sterilizer main body 10 and the bus constituting the enclosed space 2, one ozone sterilizer main body 10 can be shared by a plurality of buses, and the equipment cost is low. It's done.

(3) Further, in each of the above embodiments, an example in which the controller 12 is installed in the vehicle of the bus constituting the enclosed space 2 (see FIG. 1) has been described, but the ozone sterilizer 1 of the present invention is the same. Not limited to.
For example, the controller 12 may be built in the ozone sterilizer main body 10.

(4) Further, in each of the above embodiments, all the communication between the detector, the controller 12, and each device controlled by the controller 12 is described as the radio 21, but the present invention is not limited thereto.
For example, only some communications may be wireless 21 and the rest may be wired.

(5) Further, in addition to the configuration of each of the above embodiments, the administrator terminal 22 may further include the detection information from the detector and the operation status information from the controller 12 to be wirelessly transmitted.
Examples of the administrator terminal 22 include tablets and smartphones, and information transmitted wirelessly, such as ozone filling state, decomposition state, and human movement, is displayed by software such as an application (the administrator terminal 22). See FIG. 18). As a result, the operating status of the ozone sterilizer 1 can be easily managed from a remote location. In the example shown in FIG. 18, a plurality of ozone sterilizers 1 are collectively managed.
On the contrary, from the administrator terminal 22, items necessary for operation such as the concentration to be filled, the CT value consisting of time, and the concentration setting to allow access to the enclosed space 2 are set by software such as an application, and the information thereof. Can be wirelessly transmitted to the controller 12 to enable efficient operation.

(6) In the second embodiment, there is an example (see FIG. 5) in which the sending side wind direction adjusting plate 13 is controlled so that the air 3 containing ozone is preferentially sent out in the direction in which the ozone concentration is low in the closed space 2. explained. However, the control of the wind direction adjusting plate 13 on the sending side can be used not only for eliminating the variation in the ozone concentration in the enclosed space 2 but also for another purpose.
For example, when it is desired to intensively fill the enclosed space 2 with ozone to have a higher concentration than other places, the sending side wind direction adjusting plate 13 is controlled so as to send out the air 3 containing ozone in that direction. You may. The ozone sensor 11 may be used to specify this direction.

(7) Further, in each of the above embodiments, the enclosed space 2 has been described as a bus, but the present invention is not limited to this.
For example, it may be a hospital room, an operating room, a room such as a nursing home, a room such as a hotel, a school classroom, a private room of a karaoke box, or another room. Further, it may be in each floor of a department store or an office building and other floors. Further, it may be a restaurant, a factory, a warehouse, or other indoors. It may also be in a car, truck, train, ship or other vehicle carrying a person or cargo other than a bus.
Further, the shape of the closed space 2 is not limited to the cubic shape shown in each of the above embodiments, and may have other shapes.

The ozone sterilizer of the present invention can be effectively used in the various enclosed spaces described above, and can be used to improve the safety and work efficiency of the ozone sterilization process.

1: Ozone sterilizer 2: Closed space 2a: Doorway 2b: Door 3: Air 4: Intake port 5: Intake fan 6: Ozone generator 7: Outlet 8: Sending fan 9: Ozone decomposer 10: Ozone sterilizer body 11: Ozone sensor 12: Controller 13: Sending side air direction adjusting plate 14: Intake side air direction adjusting plate 15: Exhaust means 16: Status indicator 17: Electric lock 18: Human sensor 19: Alarm device 20: Camera 21: Wireless 22 : Administrator terminal 24, 28: Flap 25, 29: Louver 30: On-off valve 31: Hose 32: Air circulator

Claims (18)

An intake fan that takes in air from an enclosed space from an intake port, an ozone generator that generates ozone, and
A delivery fan that sends out the air that has passed through the ozone generator from the delivery port and fills the enclosed space.
The ozone decomposer that decomposes ozone and
With one or more ozone sterilizer bodies equipped with
An ozone sensor, which is arranged as a detector outside the main body of the ozone sterilizer and monitors the ozone concentration in the enclosed space,
A controller that is arranged inside the ozone sterilizer main body or outside the ozone sterilizer main body and controls the operation of at least the intake fan, the ozone generator, and the transmission fan based on the ozone concentration detected by the ozone sensor. When,
Ozone sterilizer equipped with. The ozone sterilizer according to claim 1, wherein a plurality of ozone sensors are dispersed and arranged in the enclosed space. The ozone sterilizer according to claim 2, wherein the ozone sensor is arranged at least near the ceiling in the enclosed space. The outlet further comprises a delivery side wind direction adjusting plate.
While sending the air containing the ozone generated from the ozone generator to the enclosed space,
For one or more ozone sterilizer main bodies, the controller controls the sending side wind direction adjusting plate so that the air containing the ozone is preferentially sent out in the direction in which the ozone concentration is low in the closed space. , The ozone sterilizer according to claim 2. With respect to the ozone sterilizer main body that preferentially sends out the air containing the ozone in the direction in which the ozone concentration is low, the controller controls the sending fan so as to increase the sending amount of the ozone sterilizer main body. The ozone sterilizer according to claim 4. The intake port further includes an intake side wind direction adjusting plate.
While the ozone decomposer decomposes the ozone contained in the air taken in from the enclosed space,
For one or more ozone sterilizer main bodies, the controller controls the intake side wind direction adjusting plate so that the air containing the ozone is preferentially taken in from the direction in which the ozone concentration is high in the enclosed space. , The ozone sterilizer according to claims 2, 4 and 5. With respect to the ozone sterilizer main body that preferentially sucks the air containing the ozone from the direction in which the ozone concentration is high, the controller controls the intake fan so as to increase the intake amount of the ozone sterilizer main body. The ozone sterilizer according to claim 6. The outlet further comprises a delivery side wind direction adjusting plate.
While delivering the air to the enclosed space
With respect to one or more ozone sterilizer main bodies, the controller controls the sending side so that the air in the closed space is agitated based on the ozone concentration detected by the ozone sensors arranged in a distributed manner. The ozone sterilizer according to claim 2, which controls the wind direction adjusting plate toward the floor. An air circulator that agitates the air in the enclosed space is further provided toward the floor.
2. The controller controls the operation of the air circulator so that the air in the enclosed space is agitated based on the ozone concentration detected by the ozone sensors arranged in a plurality of dispersed areas. Ozone sterilizer. The enclosed space or the ozone sterilizer main body further comprises an exhaust means for exhausting the air containing the ozone of 0.1 ppm or less from the enclosed space.
The ozone sterilizer according to claim 1 to 9, wherein the controller controls the operation of the exhaust means based on the ozone concentration detected by the ozone sensor. Further provided with a status indicator arranged outside the closed space to variably display whether or not access to the closed space is possible.
The ozone sterilizer according to claim 1 to 10, wherein the controller controls the operation of the status indicator based on the ozone concentration detected by the ozone sensor. Further equipped with an electric lock that locks and unlocks the door of the entrance and exit of the enclosed space.
The ozone sterilizer according to claim 1 to 11, wherein the controller controls the operation of the electric lock based on the ozone concentration detected by the ozone sensor. It is arranged as a separate detector in the enclosed space, and is further equipped with a motion sensor that monitors the movement of a person.
The ozone sterilizer according to claim 1 to 12, wherein the controller controls the operation of the ozone generator based on the movement of the person in the enclosed space detected by the motion sensor. The motion sensor arranged as another detector near the entrance / exit in the enclosed space,
Further equipped with an alarm that issues an alarm,
The ozone sterilizer according to claim 1 to 13, wherein the controller controls the operation of the alarm based on the movement of the person near the doorway detected by the motion sensor. A camera, which is arranged as another detector near the entrance / exit in the enclosed space and monitors the movement of a person, is further provided.
The ozone sterilizer according to claim 14, wherein the controller controls the operation of the alarm based on the movement of the person near the doorway detected by the motion sensor and the camera. The ozone sterilizer according to claim 1 to 15, wherein at least one of the communication between the detector, the controller, and each device controlled by the controller is wireless. The ozone sterilizer according to claim 1 to 16, further comprising an administrator terminal for wirelessly transmitting detection information from the detector and operating status information from the controller. The ozone sterilizer according to claim 1 to 17, wherein the enclosed space is indoors, in a floor, indoors, or in a vehicle.

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