JPH08150195A - Ozone fumigating device with residual ozone removing function - Google Patents

Abstract

PURPOSE: To shorten the time for the fumigating operation and permit any person in charge to come into the room safely immediately after the completion of the fumigating operation by performing ozone fumigation, and removing away or circulating the intra-room air containing residual ozone upon passing through an ozone removing part. CONSTITUTION: The second opening 18 is opened and the first opening 14 is shut while ozone generation with an ozonizer 27 is operated, and a suction fan 24 is actuated so that the intra-room air is sucked from the second opening 18, passed through an ozone generating part 28, and supplied into the room from an air outlet 29 as ozonized air. Thus ozone fumigation is performed. Then the ozone generating part 28 is stopped while the suction fan 24 is left in operation, and the intra-room air containing residual ozone after fumigation is sucked from the air inlet 2 and passed through an ozone removing part 5 to get rid of the residual ozone, and this air without ozone is fed circulating. Thereby the concentration of the residual ozone in the intra-room air can be sunk to the safe level in a short time prematurely before natural decay, and one can safely enter the room immediately after the fumigating process.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supplies a certain amount of ozonized air into a room to perform ozone fumigation, and the ceiling, wall, floor,
Decomposes malodorous substances adhering to the surfaces of furniture, machinery and equipment, and sterilizes bacteria, viruses, molds, etc., and after a certain standing time, removes residual ozone in the room to bring its concentration to a safe value. The present invention relates to a novel ozone fumigation apparatus with a residual ozone removing function for rapidly reducing and almost completely eliminating the residual ozone odor upon re-entry to make the indoor air quality comfortable and healthy.

[0002]

2. Description of the Related Art An apparatus for supplying ozoned air into a room for fumigation of ozone is known per se. However, it is necessary to wait for the ozone remaining in the air to fall to a safe value (about 0.05 ppm) due to spontaneous decomposition before entering the room again after the fumigation operation, which requires a considerably long time,
For this reason, it is inevitable that the time efficiency of the ozone fumigation service is significantly reduced.

Further, even after entering the room after the safety value is lowered to the above value, the ozone adsorbed / remaining on the indoor surface is re-released into the air and an unpleasant ozone odor remains, which is unavoidable. Moreover, the conventional ozonizer is large and expensive in both main body and power source and lacks in practicality, and it was impossible to make it portable when the processing capacity was increased.

[0004]

The first problem to be solved by the present invention is to enable entry into the room immediately after fumigation work or after a short standing time, and to eliminate unpleasant residual ozone odor upon entry. To completely eliminate it. A second object is to provide a small and inexpensive ozone fumigation apparatus.
Furthermore, the third problem is to provide a portable ozone fumigating apparatus which is easy to carry.

[0005]

The ozone fumigating apparatus of the present invention is provided with an ozone removing section for removing ozone in addition to an ozonizer necessary for fumigation, and immediately after a predetermined ozone fumigating operation, it is allowed to stand still or at a constant temperature. The first problem is solved by lowering the residual ozone concentration of the indoor air to a safe value in a short time without allowing the indoor air to circulate through the ozone removing section for a certain period of time and waiting for natural decay.

That is, a novel ozone fumigating apparatus according to the present invention comprises an ozone removing section comprising at least one of an activated carbon layer and an ozone decomposing catalyst layer and suction air from the upstream side inside a casing having an air inlet and an air outlet. A switching unit, a suction fan, and an ozone generator are sequentially connected and arranged.

The suction switching section is provided with an airtight partition having a first opening on the upstream side thereof and a second opening communicating with the outside air, and the suction fan has its air suction port. The suction air switching unit is communicated with the air exhaust port, and the air outlet is communicated with the air outlet through the ozone generating unit.

A switching valve for switching between the first opening and the second opening to open and close the suction air switching section,
The actuator is provided for driving the switching operation by an external signal. In addition, the ozone generator is provided with an ozonizer and an ozonizer power source for applying a voltage to the ozone generator by an external signal. Further, a fumigation control unit for controlling the operation of the actuator and the power supply for the ozonizer according to a predetermined control program is provided.

As a result, first, only the second opening is opened, room air is sucked from the second opening, and the ozone generating section is operated while passing through the ozone generating section via the suction air switching section and the suction fan. , Ozone is fumigated by supplying it as ozonized air from the air outlet into the room.

Then, only the first opening is opened, the operation of the ozone generating section is stopped, the room air containing the residual ozone after fumigation is sucked from the air inlet, and the residual ozone is removed through the ozone removing section. Removed, the suction air switching unit,
The ozone is discharged into the room through the suction fan, the ozone generator, and the air outlet, thereby rapidly removing the ozone remaining in the room.

The fumigation control section is provided with a timer, an ozone concentration measuring section, or both, and is used to perform either timer-driven or ozone concentration-led sequence control described below.

First, in the timer-driven sequence control,
(1) At the same time when the start switch is turned on, the switching valve of the suction air switching section operates its actuator so as to close the first opening and open the second opening for a predetermined fumigation time T1. , The power for the suction fan and the ozonizer is turned on to suck the air in the room from the second opening, and then the air is circulated through the suction fan and the ozone generator to generate ozone generated in the ozone generator. After gas is added, it is supplied to the room as ozonized air from the air outlet, and the room is fumigated with ozone.

(2) Then, for a predetermined standing time T2, the suction fan and the power for the ozonizer are turned off to stop the supply of the ozonized air into the room and to remove the residual ozone in the room air. Automatically switch to stationary fumigation work to continue the fumigation action. In this case, it goes without saying that the stationary fumigation operation may be omitted and the stationary time T2 = 0.

(3) Then, during a predetermined ozone removal time T3, the switching valve of the suction air switching section operates its actuator so as to close the second opening and open the first opening, and While the power for the ozonizer is turned off, the suction fan is turned on so that the ozonized air in the room containing the residual ozone is supplied to the air inlet, the ozone removal section, the suction air switching section, the suction fan, and the ozone generation in the ozone generation stopped state. To remove the residual ozone in the ozone removal section and then supply and circulate it indoors from the air outlet to reduce the residual ozone gas in the room air to a safe value. Automatically switch to.

Finally, (4) the power supply for the suction fan and the ozonizer is turned off to automatically complete all the operations.

Next, in the case of ozone concentration-led sequence control, the fumigation control section is provided with an ozone concentration measuring section for measuring the concentration of ozone in the gas, in addition to the timer, and the ozone sensor section is provided with the ozone sensor section. It is arranged in the suction air switching section, and first, (1) the ozone fumigation operation is started.

(2) When the ozone concentration detected by the ozone concentration measuring section reaches a predetermined set value, the suction fan and the power for the ozonizer are turned off to automatically switch to the stationary fumigation working mode. . Then, (3) after a predetermined stationary fumigation time T2, the remaining ozone removal operation is automatically switched by the timer control, and finally (4) the ozone concentration detected by the ozone concentration measuring unit is set to a predetermined safety level. When it falls below the value, turn off the power to the suction fan and the ozonizer to automatically complete all operations.

Also in this case, the stationary fumigation operation is omitted and T2 =
Alternatively, the fumigation operation of (1) may be immediately set to the residual ozone removal operation of (3). In that case, the timer is unnecessary and can be omitted.

Next, the ozonizer used in the present invention originally has an insulating layer such as a glass layer or a ceramic layer interposed between a pair of plate-shaped or cylindrical parallel electrodes and applies a high AC voltage between the electrodes. Any suitable type, type and material may be used including a so-called silent discharge type ozonizer that generates a silent discharge in the gap to generate ozone. In order to achieve this, a linear discharge electrode is provided on one surface of a flat ceramic substrate or a cylindrical ceramic substrate, and the linear discharge electrode is provided on the other surface or inside the substrate. It is preferable to use a high-frequency creeping discharge type ceramic ozonizer in which a planar induction electrode is arranged so as to cover a portion facing to and a region outside thereof.

In this case, a high-frequency high-voltage power source is used as the power source for the ozonizer, and its output voltage is applied between the linear discharge electrode and the planar induction electrode, so that the ceramic is discharged from the peripheral edge of the linear discharge electrode. A high-frequency creeping discharge is generated on the surface of the substrate, which produces ozone. In addition, this ozonizer is equipped with an appropriate heating electric heating element and its heating power source, and if the ozonizer is heated and dried for a short time before fumigation work, even if the air humidity is extremely high, the occurrence of high-frequency creeping discharge due to humidity is not obstructed It is suitable.

Further, in order to achieve the third object of the present invention, a handle is provided on an upper portion of a casing of the ozone fumigating apparatus, and a pair of wheels and a support leg are provided on a lower portion thereof, and the ozone is provided by the handle. The fumigation device is tilted so that the entire pair is supported by the pair of wheels and the supporting leg is lifted from the floor, and the handle is pulled to move.

[0022]

[Function] During the first ozone fumigation period T1, ozonized air is supplied to the room, and the ceiling, walls, floor, fixtures, machinery,
It diffuses on the surface of equipment and oxidizes and decomposes the malodorous substances already adsorbed on the surface to deodorize it, and sterilizes bacteria, viruses and molds adhering to the surface.

During the subsequent stationary period T2, the supply of the ozonized air is stopped, but the ozone remaining in the room air continues the fumigation operation, and the remaining ozone is effectively used. Then, the remaining ozone removal period T that follows
In Fig. 3, the ozonized air in the room containing the residual ozone is circulated through the ozone removing section of the present apparatus, and the residual ozone concentration rapidly decreases to a safe value. Further, during this period, the ozone-free clean air supplied from the apparatus to the room cleans the above-mentioned surface in the room, and the surface residual ozone adsorbed on the surface is stripped off, and all the ozone is removed. As a result, it is safe to enter the room immediately after the completion of all operations, and there is no unpleasant residual ozone odor.

In the high-frequency creeping discharge type ceramic ozonizer used in the present fumigation apparatus, the plasma region for generating ozone, which generates heat, adheres to the surface of the ceramic substrate having good heat conduction, and its cooling effect is extremely good, so that the temperature rises even when high frequency is used. Thermal decomposition of ozone generated by is avoided. On the other hand, the amount of ozone generated is greatly improved by using high frequencies, and the power source is also downsized by this, so that both the ozonizer body and the power source are small and inexpensive.

As a result of the miniaturization of both the ozonizer body and the power source, the novel ozone fumigating apparatus with a residual ozone removing function according to the present invention is remarkably compact and lightweight, and is easily portable even if its processing capacity increases. You can do it.
In addition, a handle can be attached to the upper part and a pair of wheels and a supporting leg can be attached to the lower part for stable installation. Also, the main body can be tilted by the handle to float the supporting leg, and only one pair of wheels can support it. By pulling it up, easy transportation becomes possible.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a vertical sectional view of an embodiment of an ozone fumigation apparatus with a residual ozone removing function according to the present invention. FIG. 2 is a perspective view thereof. FIG. 3 is an enlarged vertical cross-sectional view of the ozone generator 28 and the flat plate type high frequency creeping discharge type ceramic ozonizer 27 and a diagram showing a connection relationship between the ozonizer power supply 47. FIG. 4 shows a top view of the flat plate high frequency creeping discharge ceramic ozonizer 27.

In the figure, 1 is a main body casing, 2 is an air inlet provided in the upper part of the main casing, and there is a metal perforated plate 3 for preventing foreign matter from entering, and an upstream side filter for collecting coarse dust inside thereof. There is 4. Reference numeral 5 denotes an ozone removing unit provided below the ozone removing unit, and in this example, it comprises an activated carbon layer 9 housed in a detachable container 8 having a gas permeable upper lid 6 and a bottom plate 7.

Reference numeral 10 is a downstream filter provided below the filter, which prevents the activated carbon from scattering. An air collection chamber 11 is provided on the downstream side, and communicates with a suction air switching unit 13 provided below with an airtight partition 12 through a first opening 14.

Reference numeral 15 is an outside air intake port, and a metal mesh 1
6, the filter 17, and the second opening 18 communicates with the gas switching unit 13. Reference numeral 19 is an air flow switching valve composed of a flap plate, which is rotatably supported by a support shaft 21 via an arm 20, and is rotated 90 degrees by forward / reverse rotation of an actuator 22 composed of a geared motor to rotate the first opening 14 or the first opening 14. 2 Open one of the openings 18 and close the other in an airtight manner.

A suction fan 24 having a drive motor 23 is provided below the suction air switching unit 13.
The suction port 25 opens and communicates with the inside of the suction air switching unit 13. Further, the discharge port 26 is connected to the upstream end side of a rectangular duct-shaped ozone generating section 28 having a flat plate-shaped high frequency creeping discharge ceramic ozonizer 27 therein, and its downstream end communicates with an air outlet 29. 30
Is a metal mesh provided at the air outlet 29 to prevent foreign matter from entering and ensure safety.

Reference numeral 31 denotes a pair of wheels, the axles 32 of which are rotatably supported by a support member 33 attached to the rear bottom portion of the main body 1, and together with the support legs 34 attached to the front bottom portion of the main body 1, the main body 1. 1 is stably supported on the floor 35. Reference numeral 36 denotes a handle attached to the upper rear part of the main body 1. When the handle is grasped and the main body 1 is tilted rearward around the wheel 33, the support leg 34 separates from the floor 35 upward, and in that state. The main body 1 can be easily moved leftward by pulling the wheel 36 by the wheel 31. Further, 37 is a front door plate, which is removed to activate the activated carbon container 8 of the ozone removing section,
The upstream filter 4 and the downstream filter 10 can be replaced.

Reference numeral 38 is a fumigation control unit, which has its power input terminal 3
Reference numerals 9 and 39 'are connected to a power outlet (not shown) via conductors 40 and 40', a switch portion 41, a power cord 42, and a plug 43.

Further, the fumigation control unit 38 in this example has both a timer and a timer-driven sequence control circuit, and an ozone concentration measuring unit and an ozone concentration-led sequence control circuit, which are not shown in the figure. According to this, either timer-driven sequence control or ozone concentration-led sequence control can be selected. An ozone sensor unit 44 is connected to an ozone concentration measuring unit built in the fumigation control unit 38 via a lead wire 45 and a terminal 46.

Reference numeral 47 is an ozonizer power supply for supplying electric power to the ozonizer 27, the input side of which is a conducting wire 48,
48 'is connected to the power supply terminals 49, 49' for the ozonizer of the fumigation control unit 38, and its four output terminals 50, 51, 52, 53 are shown in FIGS. 3 and 4, respectively. It is connected to both ends of the linear discharge electrode 54, the planar induction electrode 55 and the heating heater wire 56 of the flat plate high frequency creeping discharge ceramic ozonizer 27.

Reference numerals 57 and 57 'denote power input terminals of the suction fan driving motor 23, which are connected to the suction fan driving terminals 59 and 59' of the fumigation control section 47 through conductors 58 and 58 '.

Reference numerals 60, 60 'denote air flow switching valve drive terminals for supplying electric power to the geared motor for driving the air flow switching valve 19, which are connected to the actuator 22 via the lead wires 61, 61', and have a positive or negative polarity. By supplying a DC voltage, the geared motor is normally or reversely rotated, and the air flow switching valve 19 is rotated 90 degrees to selectively open and close the opening 1 or 2 in an airtight manner.

3 and 4, reference numeral 62 denotes a flat plate-shaped ceramic substrate, which is a rectangular high-purity alumina ceramic substrate in this example. A linear discharge electrode 54 made of tungsten is disposed in the center of the surface in the longitudinal direction, and both ends thereof have soldering points 63, 63 'for connection. A protective layer 64 of thin high-purity alumina is formed except for the soldering points. It is covered and is connected to the high-frequency high-voltage output terminal 50 of the ozonizer power supply 47 via a soldering point 63 and a conducting wire 65.

Reference numeral 55 denotes a planar induction electrode made of tungsten, which is embedded in the substrate 62 so as to face the linear discharge electrode 54 and its peripheral region with a portion 66 of the substrate being separated, and the ozonizer through a conductor 67. The power supply 47 is connected to the pressure output side ground terminal 51. Reference numeral 56 is a heating wire made of tungsten for heating the substrate, which is embedded in the back side of the planar induction electrode 55 in the substrate 62, and both ends of the heating wire 68, 6
It is connected via 8'to the output terminals 52 and 53 of the heating power source built in the power source 47 for the ozonizer.

Now, when the switch 69 of the switch section 41 is turned on, its output is the conductors 40, 40 'terminals 39, 3
It is inputted to the fumigation control unit 38 via 9 ', and a series of fumigation operation starts. That is, in this embodiment, first, the output for the ozonizer power source is input to the power source 47 for the ozonizer through the output terminals 49, 49 'of the fumigation control unit 38, and first, the lead wire 68 is output from the output terminals 52, 53 of the built-in heating power source. , 6
A heating current is supplied to the heating wire 56 via the 8'for a short time To, the ceramic substrate 62 of the ozonizer 27 is heated and dried, and a preliminary operation for facilitating the generation of discharge is performed.

Then, the heating current is turned off, and instead, a high-frequency high voltage is applied between the linear discharge electrode 54 and the planar induction electrode 55 from the output terminals 50 and 51 of the ozonizer power source 47 through the conductive wires 65 and 67. Is supplied. As a result, the high-purity alumina protective layer 6 is removed from both side edges of the linear discharge electrode 54.
A high-frequency creeping discharge is generated along the surface of No. 4, and abundant ozone generation starts.

At the same time, the output terminal 60 of the fumigation control section 38,
From 60 ', the output for the actuator is lead wires 61, 6
1'is input to the actuator 22, the air flow switching valve 19 rotates counterclockwise to hermetically close the first opening and open the second opening, and the fumigation controller 38
The output for the suction fan from the output terminals 59, 59 ′ of the suction fan 24 is supplied to the drive motor 23 of the suction fan 24 via the lead wires 58, 58 ′ and the terminals 57, 57 ′.
Also started working.

As a result, the room air passes through the outside air intake port 15 through the metal mesh 16, the filter 17, the second opening 18, the air flow switching unit 13, the suction fan 24, and the ozone generating unit 28, and the ozone generating unit 28. At this time, ozone is added to form ozonized air, which is supplied from the air outlet 29 through the metal mesh 30 into the room to perform ozone fumigation.

Next, when the fumigation control section 38 is set to the timer-driven control, after the predetermined fumigation time T1,
When the ozone concentration control is set, the indoor ozone concentration detected by the ozone sensor unit 44 and measured by the ozone concentration measuring unit built in the fumigation control unit 38 reaches a predetermined set value. At this time, the output from the fumigation control unit 38 to the suction fan drive motor 23 is turned off and the suction fan 24 is stopped, the output to the ozonizer power supply 47 is also turned off, and the ozone generation of the ozonizer 27 is stopped,
An output of opposite polarity is supplied to the actuator, and the air flow switching valve 19 is rotated 90 degrees in the clockwise direction to rotate the first air flow switching valve 19.
Open the opening and hermetically close the second opening. As a result, the supply of ozonized air to the room is cut off, and the stationary fumigation is performed by the residual ozone in the indoor air for the predetermined stationary fumigation time T2. As described above, T2 = 0, that is, the operation of the actuator may be immediately followed by the operation of removing the remaining ozone.

Next, the operation for removing the residual ozone starts, and the output to the suction fan drive motor 23 is turned on again while the output from the fumigation control unit 38 to the power supply 47 for the ozonizer and the actuator 22 is stopped. Suction fan 2
4 starts to work again, and starts to work to remove residual ozone. As a result, the room air containing the residual ozone becomes the above-mentioned air inlet 2
It is further sucked, passes through the porous metal plate 3, the upstream dust filter 4, and the ozone removing section 5, and the residual ozone is adsorbed and removed by the activated carbon layer 9, and the indoor dust and activated carbon layer is obtained by the downstream dust filter 10. The coal dust from 9 is removed to obtain clean air.

This clean air further passes through the air collection chamber 11, the first opening portion 14, the air flow switching portion 13, the suction fan 24, and the ozone generation portion 28 in the inoperative state, and the air outlet 2
It is returned to the room from 9 and circulates, during which the residual ozone is rapidly removed from the room air.

When the fumigation controller 38 is set to the timer-led control, a predetermined ozone removal time T
After 3 and when the ozone concentration driven control is set, the indoor ozone concentration detected by the ozone sensor unit 44 and measured by the ozone concentration measuring unit built in the fumigation control unit 38 is set to a predetermined value. When the safe value is reached, the output from the fumigation controller 38 to the suction fan drive motor 23 is turned off, the suction fan 24 is stopped, and all the operations are completed.

[0045]

According to the present invention, after performing the fumigation of ozone as described above, the residual ozone concentration is rapidly reduced to a safe value because it is removed and circulated through the indoor air ozone removal section containing the residual ozone. It is safe to enter the room immediately after completion, and work time can be shortened. Further, since the adsorbed ozone on the indoor surface is also removed by cleaning with clean air, there is no unpleasant residual ozone odor.

By using a high frequency creeping discharge type ceramic ozonizer as the ozonizer, both the ozonizer main body and the power source can be made small and inexpensive. Further, as a result, the main body is remarkably small and lightweight, and even if its processing capacity is increased, it can be easily made portable.
Further, by attaching a handle to the upper part and a pair of wheels and a supporting leg to the lower part, stable installation and easy transportation can be performed.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of an embodiment of the present invention.

2 is a perspective view of the embodiment of FIG. 1. FIG.

FIG. 3 is a diagram showing an ozone generating part 28 and its flat plate high frequency creeping discharge type ceramic ozonizer 27 in the embodiment of FIG.
FIG. 3 is an enlarged vertical cross-sectional view of FIG. 1 and a view showing a connection relationship with the power supply 47 for an ozonizer.

4 is a top view of the flat plate high frequency creeping discharge ceramic ozonizer 27 of FIG. 3. FIG.

[Explanation of symbols]

1 Main Body Casing 2 Air Inlet 3 Metal Perforated Plate 4 Upstream Filter 5 Ozone Removal Section 6 Breathable Top Cover 7 Breathable Bottom Plate 8 Activated Carbon Container 9 Activated Carbon Layer 10 Downstream Filter 11 Air Collection Chamber 12 Partition Wall 13 Suction Air Switching Section 14 1st Opening 15 Outside air intake 16 Metal mesh 17 Filter 18 Second opening 19 Airflow switching valve 20 Same as above Support arm 21 Spindle 22 Actuator 23 Drive motor 24 Suction fan 25 Same above suction port 26 Same as discharge port 27 Flat plate high-frequency creeping discharge Ceramic ozonizer 28 Ozone generator 29 Air outlet 30 Metal mesh 31 Wheel 32 Same axle 33 Same support 34 Support leg 35 Floor 36 Handle 37 Front door plate 38 Fumigation controller 39, 39 ', 46, 49, 49', 50, 51, 5
2, 53, 57, 57 ', 59, 59', 60, 6
0 ', 65 terminals 40, 40', 45, 48, 48 ', 58, 61, 6
1 ', 67, 68, 68' Conductor 41 Switch part 42 Power cord 43 Same as above Insert plug 44 Ozone sensor part 47 Ozonizer power supply 54 Linear discharge electrode 55 Planar induction electrode 56 Heating wire for heating 62 Flat ceramic substrate 63 , 63 'Connection solder point 64 High-purity alumina protective layer 66 Substrate layer 69 Switch

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI technical display location B01D 53/74 53/86

Claims (5)

[Claims] 1. An ozone removing unit, a suction air switching unit, a suction fan, and an ozone generating unit, which are formed from at least one of an activated carbon layer and an ozone decomposition catalyst layer, from the upstream side into a casing having an air inlet and an air outlet. Units are sequentially communicated and arranged, and the suction air switching unit has a first upstream side.
The suction fan has a second opening communicating with the outside air, and the suction fan has an air suction port communicating with the suction air switching unit and an air discharge port having the ozone generating unit. Through the air outlet, the suction air switching unit includes a switching valve that switches between the first opening and the second opening to open and close, and an actuator that drives the switching operation. The unit includes an ozonizer and an ozonizer power source for applying a voltage to the ozonizer, and further includes a fumigation control unit for controlling the operation of the actuator and the ozonizer power source according to a predetermined control program. First, while operating the ozone generation of the ozonizer, the second opening is opened and the first opening is closed, and the suction fan is operated. Room air is sucked through the second opening, and the ozone is switched through the suction air switching section and the suction fan to be supplied to the room as ozonized air from the air outlet to perform ozone fumigation. The second opening is closed and the first opening is opened. While the suction fan operates, the ozone generator stops operating, and the room air containing residual ozone after fumigation is sucked from the air inlet. Residual ozone is removed through the ozone removing unit, and the first opening is
An ozone fumigating apparatus with a residual ozone removing function, characterized in that it is supplied into a room through a suction air switching section, a suction fan, an ozone generating section in a stopped state, and an air outlet, thereby rapidly removing residual ozone in the room. 2. The fumigation control section is provided with a timer, and (1) first, a start switch is turned on, and at the same time, a switching valve of the gas switching section closes the first opening and opens the second opening. The actuator is actuated in the same manner, the suction fan and the power for the ozonizer are turned on, air in the room is sucked through the second opening, and then the air is circulated through the suction fan and the ozone generator. The ozone gas generated in the ozone generator is added to make ozoned air, and then the air is supplied from the air outlet to the room to perform fumigation of ozone in the room for a predetermined fumigation time T1. Turn off the fan and the power for the ozonizer to stop the supply of the above-mentioned ozonized air to the room and at the same time to perform the fumigation operation of the stationary ozone that continues the fumigation action of the residual ozone in the room air. Automatically switch and keep this stationary fumigation state for a predetermined stationary time T2 including zero time,
(3) Next, the switching valve of the gas switching unit is the second
While closing the opening and operating the actuator so as to open the first opening, the suction fan is turned on while the power for the ozonizer is off, and the room air containing residual ozone is introduced into the air inlet, The ozone removal section, the suction air switching section, the suction fan, and the ozone generation section in the ozone generation stopped state are sequentially passed through the ozone removal section to remove the residual ozone, and the air is supplied and circulated from the air outlet to the room. The ozone gas remaining in the air is automatically switched to the residual ozone removal operation for rapidly reducing it to a safe value, and this ozone removal operation is continued for a predetermined ozone removal time T3. (4) Finally, Having a timer-driven sequence control function that automatically turns off the power to the suction fan and ozonizer to complete all operations. Residual ozone removal function with ozone fumigation device according to claim 1, wherein. 3. The fumigation control section is provided with an ozone concentration measuring section and a timer, and an ozone sensor section of the ozone concentration measuring section is arranged in the sucked air switching section. At the same time when the switch is turned on
The actuator of the suction air switching unit operates so that the switching valve closes the first opening and opens the second opening, and the suction fan and the power for the ozonizer are turned on to remove the air in the room. (2) Suction from the opening and then circulate through the suction fan and the ozone generator, add ozone gas generated in the ozone generator and supply it as ozonized air from the air outlet into the room to supply ozone in the room. (2) When the ozone concentration detected by the ozone concentration measuring section reaches a predetermined set value, the suction fan and the power for the ozonizer are turned off to supply the ozonized air into the room. Is stopped and the fumigation action of the residual ozone in the room air is continuously switched to a static fumigation operation, and the static fumigation state is set to a predetermined static fumigation time T including zero time. (3) Next, the actuator of the suction air switching unit operates so that the switching valve of the suction air switching unit closes the second opening and opens the first opening, and the power for the ozonizer is kept off. , The suction fan is turned on, room air containing residual ozone is sucked from the air inlet, and then the ozone removal section, the gas switching section, the suction fan, and the ozone generation section in the ozone generation stopped state are sequentially passed to remove the ozone. After removing the residual ozone in the room, it is automatically switched to the residual ozone removal operation that supplies and circulates indoors from the air outlet and rapidly reduces the ozone gas remaining in the indoor air to a safe value.
(4) Finally, when the ozone concentration detected by the ozone concentration measuring unit falls below a predetermined safe value, the suction fan and the power for the ozonizer are turned off to automatically complete all the operations. The ozone fumigation apparatus with a residual ozone removing function according to claim 1, further comprising an ozone concentration initiative type sequence control function. 4. A dust removing filter is provided on at least one of the upstream side, the downstream side, and the second opening of the ozone removing section, according to any one of claims 1 to 3. Ozone fumigation device with the residual ozone removal function described. 5. The ozonizer has a linear discharge electrode disposed on one surface of a flat ceramic substrate or a cylindrical ceramic substrate, and the linear discharge electrode on the other surface or inside the substrate. A high-frequency creeping discharge ceramic ozonizer in which a planar induction electrode is arranged so as to cover a portion facing the discharge electrode and its outer region, and the power supply for the ozonizer is a high-frequency high-voltage power supply, and its output voltage is The ozone is generated by applying a high-frequency creeping discharge from the peripheral portion of the linear discharge electrode to the surface of the ceramic substrate by applying between the linear discharge electrode and the planar induction electrode to generate ozone. An ozone fumigation apparatus with a residual ozone removing function according to any one of items 1 to 4. 6. The ozonizer is provided with a heating electric heating element and a heating power source for heating the ozonizer for a predetermined heating time To before starting the fumigation operation. Ozone fumigation device with residual ozone removal function. 7. A handle is provided on the upper part of the casing, and one is provided on the lower part of the casing.
The ozone fumigating apparatus with a residual ozone removing function according to any one of claims 1 to 6, wherein a pair of wheels and a supporting leg are provided to be portable.