JPH0557005A - Ozone deodorizing and germicidal device - Google Patents

Abstract

PURPOSE:To enable both deodorized and disinfected space itself, and the air existing therein to be deodorized and disinfected. CONSTITUTION:There are provided a germicidal circulation system 20 to mix the air drawn through a blower 2 with ozone generated via an ozone generator 4 in a mixing box 3 for blowing the ozone contained air to the inside of a room 15, and an ozone removal system 30 constituted of an ozone decomposing catalyst 7 to remove ozone from the ozone contained air circulated through the room 15 via the system 20, and the blower 2. Both of the systems 20 and 30 are automatically regulated with a controller 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ozone deodorizing and sterilizing apparatus for deodorizing and sterilizing a predetermined space such as a vehicle room or a room of a normal house.

[0002]

2. Description of the Related Art Conventionally, as this type of ozone deodorant sterilizer, for example, one disclosed in Japanese Patent Laid-Open No. 63-317155 is known.

In this prior art, after introducing indoor air into the apparatus, deodorizing and sterilizing the air with ozone, ozone and harmful substances are removed from the air, and the purified air is indoors. It was something to put back.

[0004]

However, in the above-mentioned prior art, although it is possible to deodorize and sterilize the air in the room, the objects existing in the room (for example, walls and desks, other equipment and devices, etc.) ) There is a drawback that the deodorant sterilization of the room itself cannot be performed, and the deodorant sterilization of the room itself must be performed using another device or the like.

In view of the above problems, the present invention aims to sterilize both the space to be deodorized and sterilized where deodorant sterilization is required and the air present in the space to be deodorized and sterilized. An object is to provide a deodorant sterilizer.

[0006]

In order to achieve the above object, the ozone deodorant sterilizer according to the present invention sucks ozone generated by the ozone generator and the deodorized sterilization space through the air suction means. While mixing with air, the air containing the ozone is returned to the deodorant sterilization space to circulate the air,
A sterilization / reflux system for deodorizing and sterilizing air in the deodorized sterilization space and the air in the deodorized sterilization space, and air in the deodorized sterilization space is sucked through the air suction means, and from the sucked air It is provided with an ozone removing system for removing ozone, and a system control means for operating the ozone removing system by stopping the sterilizing reflux system after driving the sterilizing reflux system for a predetermined time.

[0007]

[Operation] Therefore, when the sterilization / reflux system is activated, the air containing ozone circulates in the deodorized sterilization space,
At this time, the inside of the deodorized and sterilized space itself and the air therein are deodorized and sterilized. After the operation of the sterilization / reflux system, the ozone removal system is operated after a predetermined time has passed, whereby ozone is removed from the deodorized sterilization space, and the process of deodorization sterilization ends. The above problem is solved by the operation of each system. The control of each system is automatically performed through the system control means, and it is not necessary for a person to intervene in the deodorized sterilization space during the deodorization sterilization process.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the ozone deodorant sterilizer 1 is
The blower 2, the mixing box 3, the ozone generator (ozonizer) 4 and the oxygen generator (PSA) 5, the humidifier 6, the ozone decomposition catalyst 7, the controller 8, and the first to third solenoid valves 9, 10 and 11 are basically configured, and the suction port 12 and the first and second outlets 13 and 14 of the device 1 are opened in a closed room (deodorant sterilization space) 15. Has been done. In this embodiment, the ozone deodorant sterilizer 1 is placed outdoors, but it may be placed indoors, and is basically formed in a small portable size. It is a thing.

The blower 2 is of a scroll type,
Air is sucked from the room 15 through the suction port 12 and blown into the mixing box 3 described below.

The mixing box 3 is for mixing the ozone sent from the ozone generator 4 described below and the air sent from the blower 2, and the air containing the ozone is the second part described later. The air is blown from the first outlet 13 into the room 15 via the electromagnetic valve 10 and the humidifier 6.

The ozone generator 4 is for generating ozone for deodorizing and sterilizing the room 15. The ozone generated here is sent to the mixing box 3 via the first solenoid valve 9. It has become. The oxygen generator 5 serves to supply oxygen so that the ozone generator 4 can generate high-concentration ozone, and the oxygen component is supplied from the pump 16.

The humidifier 6 is for giving humidity to the ozone-containing air sent from the mixing box 3, and the humidification improves the deodorizing and sterilizing effect of the ozone-containing air. ing.

However, the sterilization / reflux system for deodorizing and sterilizing the room 15 from the blower 2, the mixing box 3, the ozone generator 4, the oxygen generator 5, the humidifier 6, and the first and second solenoid valves 9 and 10. 20 is constituted, and the operation of the sterilization / reflux system 20 is automatically controlled by the controller 8 having a built-in CPU.

The sterilization / reflux system 20 is provided with the blower 2
When the first solenoid valve 9 and the second solenoid valve 10 are opened, the indoor air is sucked into the mixing box 3 through the suction port 12, and the ozone generated by the ozone generator 4 and the ozone are generated. By mixing with air, the air containing ozone is returned to the room 15 from the first outlet 13 via the humidifier 6, and this operation is performed for a predetermined time to recirculate the air containing ozone in the room 15. It is designed to let you.

When the air containing ozone is recirculated in the room 15, the ozone contained in the air sterilizes all of the inside of the room 15, for example, the wall 23 and the articles 24 such as a desk, and the air in the room 15 is discharged. Is deodorized and sterilized at the same time.

After the sterilization / reflux system 20 is operated, ozone is removed from the air in the room 15 by the ozone removal system 30 described below.

The ozone removing system 30 includes the blower 2 described above.
And a known ozone decomposing catalyst 7 and a third solenoid valve 11.

That is, this ozone removal system 30
When the blower 2 is operated and the third solenoid valve 11 is opened in response to a command from the controller 8, the indoor 1
The ozone-containing air of No. 5 is sucked into the mixing box 3, the ozone is removed from the air by the ozone decomposition catalyst 7, and the ozone-free air is blown back from the third outlet 14. There is.

As described above, the ozone-removed air is blown back into the room 15 through the ozone decomposing catalyst 7, whereby the ozone after deodorant sterilization is removed from the air in the room 15. There is.

The operation of the ozone removing system 30 is also automatically controlled by the controller 8. During the operation of the sterilization / reflux system 20 and the ozone removing system 30, a person enters the room 15. It is not necessary to do so, and it is possible to avoid the harmful effects of ozone on the human body.

A specific operation example of the ozone deodorizing sterilization apparatus 1 having the above-mentioned configuration will be described with reference to FIG.

First, when the sterilization / reflux system 20 is started, the blower 2 is driven to operate the ozone generator 4 for about 1 hour to raise the ozone concentration to about 300 ppm (curve A), and then the humidifier 6 To activate the sterilization / reflux system 20 for about 4 hours (curve B), and
Perform deodorant sterilization. At this time, the degree of humidification by the humidifier 6 is set to, for example, about 100% RH so that deodorant sterilization can be effectively performed. The dependency of humidity on the deodorant sterilization will be briefly described below.

The humidity condition in ozone sterilization must be 80% RH or more in relative humidity. This is
Bacil is generally said to be the most difficult to sterilize
It has been demonstrated by experiments using spores of the genus us. The experimental results are shown in the table shown in FIG. 3 under the experimental conditions described below.

The experimental conditions are ozone concentration of 200 ppm ±
10 ppm, and used bacterial cells as Bacillus lic
No. of Henniformis Spore (spore). Two
2 strains and No. 43 strains were used. Also, FIG.
In the table, the D value means the time required for the number of viable cells to be 1/10 (90% killed) when the survival curve of the cells follows the logarithmic death side.

Since it is practical for the D value to be within 60 minutes, it is deduced from this experimental result that the condition is that the ozone concentration is 200 ppm and the humidity is 80% RH or more.

Under such a humidity condition, the equipment and air in the room 15 are effectively deodorized and sterilized by operating the sterilization / reflux system 20 for about 4 hours, and a comfortable indoor space can be set.

After the sterilization / reflux system 20 has been operated for a predetermined time, the sterilization / reflux system 20 is stopped and the ozone removal system 30 is operated to remove ozone from the air in the room 15.

The time required for removing ozone is, for example, 1
It is about time (curve C), and when the ozone removal system 30 is operated for about 1 hour, it approaches zero almost completely,
Ozone removal is completed, and deodorant sterilization in the room 15 is completed.

In this embodiment, the ozone deodorant sterilizer 1 is operated in a room such as a house, but the present invention is not limited to this, and the ozone deodorant sterilizer 1 can be used in a vehicle, for example.

[0031]

As described above, according to the present invention,
Since the air containing ozone is circulated in the deodorized sterilization space, not only the air in the deodorized sterilization space but also the deodorized sterilization space itself can be deodorized and sterilized. Further, since the control of the sterilization / reflux system and the ozone removal system is automatically performed, it is not necessary for a person to intervene in the deodorized sterilization space, and the safety can be maintained.

[Brief description of drawings]

FIG. 1 is a system configuration diagram of an ozone deodorizing sterilizer according to the present invention.

FIG. 2 is a diagram illustrating an example of use of an ozone deodorizing sterilizer.

FIG. 3 is a table showing experimental results for setting humidification conditions.

[Explanation of symbols]

 1 Ozone deodorizing sterilizer 2 Blower 3 Mixing box 4 Ozone generator 5 Oxygen generator 6 Humidifier 7 Ozone decomposition catalyst 8 Controller 9, 10, 11 1st, 2nd, 3rd solenoid valve 12 Intake port 13, 14 1st And second outlet 15 Indoor (deodorant sterilization space) 20 Sterilization / reflux system 30 Ozone removal system

Claims (1)

[Claims] 1. The ozone produced by the ozone generator is mixed with the air sucked from the deodorized sterilization space through the air suction means, and the air containing the ozone is returned to the deodorized sterilization space. And a sterilization / recirculation system for deodorizing and sterilizing the air in the deodorized sterilization space and the air in the deodorized sterilization space, and inhaling the air in the deodorization sterilization space through the air suction means, An ozone removal system for removing ozone from the inhaled air, and a system control means for driving the sterilization / reflux system for a predetermined time, then stopping the sterilization / reflux system, and operating the ozone removal system. Ozone deodorant sterilizer.