JP3516380B2 - Air purifier - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaning device equipped with sterilizing / deodorizing means. More specifically, the present invention relates to an air cleaning device equipped with a sterilizing / deodorizing means in medical facilities such as hospitals and food manufacturing facilities.

[0002]

2. Description of the Related Art Heretofore, various sterilizing devices and methods have been proposed for air purifying devices as follows.

(1) There is a device provided with a sterilizing / deodorizing means such as an activated carbon layer, a photocatalyst layer, and ultraviolet rays in the air inside an air purifying device or a hospital room (for example, JP-A-63-315).
138).

(2) An electric dust collector inside the air purifier,
There is one provided with an ozone generator and an ozone decomposition catalyst (see, for example, JP-A-2-48050).

(3) An ozone generator inside the air purifier,
There is an anion generator provided with a sterilizing / deodorizing means (see, for example, JP-A-4-260732).

(4) There is an air purifier equipped with an ultraviolet lamp for sterilization and deodorization inside (for example, see Japanese Patent Laid-Open No. 7-239140).

(5) Some air purifiers include an ozone generator, an ozone decomposition catalyst, and a sheet filter containing an antibacterial agent such as silver zeolite in addition to the ozone generator (for example, Japanese Patent Laid-Open No. 6-323571). reference). (6) There is one in which a sheet filter containing an antibacterial agent such as silver zeolite is attached or a coating film is formed on the inside or inside wall of an air purifying device, the surface of a fan, a filter, etc. (for example, see JP-A-5-55176). ).

[0008]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In the sterilization treatment performed by the above-mentioned conventional air purifying apparatus, sterilization was not sufficient. Therefore, the air in which the bacteria have propagated may be sent to, for example, a hospital room or a food manufacturing room.

In the above-mentioned prior art, the sterilizing means is simply provided inside the air purifying device or in the flow path, and it is not possible to effectively sterilize the airborne bacteria in the room.

In particular, conventionally, since a sterilizing means is provided in the air conditioner, when it is desired to sterilize the interior of the room in a concentrated manner,
I couldn't do that.

Further, because of the structure in which ozone is generated inside the air purifier to perform sterilization treatment and ozone is immediately decomposed by the ozone decomposition catalyst, there is a limit to the spatial sterilization ability, and the air cleaning The size and capacity of the aircraft were limited.

[0012] Further, in the conventionally used ultraviolet lamp, since the sterilization can be performed only in the irradiated portion or within the reach of irradiation, the sterilization in the non-irradiated portion was incomplete, so that the propagation of bacteria However, the bactericidal effect was annihilated.

Further, even if the antibacterial agent sheet is used for a long period of time, dust, oil smoke, etc. adhere to the surface of the coating film containing the antibacterial agent, and direct contact with microorganisms or immediate approach is prevented. And the antibacterial effect is significantly reduced. Therefore, the antibacterial action is significantly impaired, and the sterilization treatment carried out by the above-mentioned conventional air cleaning device is not sufficient for sterilization. Therefore, the air in which the bacteria have propagated may be sent to, for example, a hospital room or a food manufacturing room.

It is an object of the present invention to obtain an apparatus capable of sufficiently performing sterilization and deodorizing treatment in a room or the like, which solves the above problems. More specifically, sterilization and
It is an object of the present invention to obtain an apparatus and method capable of deodorizing necessary and sufficient.

[0015]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention provides an air purifying apparatus equipped with an ozone generator and an ozone decomposing catalyst device, such as sterilizing / deodorizing means and air blowing means, which is corroded by ozone. In order to prevent this, it is divided into an ozone fumigation section having an ozone fumigation path 16 and an air cleaning section having an air cleaning path 15, and each flow path has an ozone fumigation path 16 and an air cleaning section. It is provided independently of the path 15.

Further, in addition to an ozone generator and an ozone decomposition catalyst device, an ultraviolet lamp, a photocatalyst, and a photocatalyst excitation lamp are used as a sterilizing / deodorizing means and an air purifying device equipped with an air blowing means.

In addition to strong ozone gas, an ultraviolet lamp, a photocatalyst and a photocatalyst excitation lamp, and an antibacterial coating or a photocatalyst coating can be provided in the air purifying device. In combination with the above, it is possible to provide more sufficient sterilization and deodorizing action.

Further, a sterilizing / deodorizing means and an air blowing means including an ultraviolet lamp, a photocatalyst exciting lamp, a photocatalyst, an ozone generator, and an ozone decomposing catalyst device are provided, and the devices are provided in the air cleaning path 15. The ozone generator and blower for sterilization are provided in the ozone fumigation path 16.

At the time of ozone sterilization (fumigation), the fan, which is a blowing means on the upstream side of the ozone generator in the ozone fumigation route 16, is controlled by an inverter to reduce the number of revolutions and the air volume / speed, Avoid exhaustion due to ozone decomposition so that ozone can be supplied at a high concentration.

When deodorizing ozone, increase the number of revolutions of the fan in the air purifying passage 15 to increase the wind speed and volume and the ozone decomposition amount to supply detoxified air. Is also possible.

Ozone gas is used as the sterilizing / deodorizing means. Ozone is used not only for its powerful sterilization but also for its deodorizing effect.

When the room is unoccupied, the ozone fumigation route 16
After sterilizing and deodorizing the room with ozone gas-containing air from the inside, maintain the state of the flow that circulates to the air purifier again.
Maintain the ozone concentration at a predetermined value for a predetermined time, then
By operating the ozone decomposing device in the air cleaning path 15 to pass the ozone-containing air, the ozone-containing air is decomposed and rendered harmless.

When the room is manned, the air from the room is guided into the air cleaning path 15 in the air cleaning device, and the ozone gas-containing air from the air cleaning device is caused to pass through by operating the ozone decomposing device. It decomposes ozone to make it harmless and sends it to the room.

At the time of ozone deodorization, it is possible to deodorize the air detoxified by the ozone decomposition catalyst by an electrostatic precipitator or a photocatalyst.

When a fan is provided on the downstream side of the ozone generator in the air cleaning path 15 and on the upstream side in the ozone fumigation path 16, ozone is generated or generated when used for ozone fumigation or air cleaning, respectively. It can be more favorable for degradation.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described based on examples with reference to the drawings. FIG. 1 is one embodiment of the present invention.

FIG. 1 shows an embodiment of the present invention. The air purifying apparatus 1 is made of an inorganic antibacterial agent or a photocatalyst as a paint, and the inside and outside surfaces of the antibacterial steel sheet are baked and coated as a casing.
A housing can be constructed.

On the inner surface of these air cleaners,
The antibacterial agent may be contained in a coating film or the like and held.
In this case, the antibacterial agent is contained in paint or the like, and the work is performed by baking coating, roller coating, spraying, or the like.

As the antibacterial agent, an inorganic material such as silver, zinc oxide or copper is used alone or in a mixture. By the action of the antibacterial agent, the growth of bacteria such as bacteria and mold on or near the surface of the coating film is suppressed, and the sterilization can be reduced.

As shown in FIG. 2, inside the air purifying device 1, inside the air purifying path 15 of the air purifying portion, the antibacterial medium-performance filter 2, the ultraviolet lamp 3, the photocatalyst exciting lamp 4, and the photocatalyst are provided. A filter 5, a deodorizing ozone generator 7, an ozone decomposing catalyst device 8, an electric dust collector 9 or a photocatalyst 10, an air cleaning fan 11, an ozone concentration sensor 13 and the like are provided. In addition, the ozone fumigation route 16 of the ozone fumigation unit
Inside, an ozone generator 6 for sterilization, an ozone fumigation fan 12 and the like are provided.

The ozone generator is an ozone generator 6 for sterilization.
And an ozone generator 7 for deodorization. Sterilization is for the purpose of sterilization, and deodorization is for the purpose of reducing ozone generation.

The fans 11 and 12 can be provided either upstream or downstream of the path, but if the fan 11 is provided on the downstream side of the air cleaning path 15 of the air cleaning apparatus 1, it becomes a suction type. Compared to the pressurization type in which ozone gas is pushed in,
There is no leakage to the outside. In addition, if a fan 12 is provided in the ozone fumigation path 16, a push-in type is used, but in this case, it is possible to carry out a treatment so that ozone is not destroyed, as will be described later. Although a centrifugal fan is shown in FIG. 1, it is needless to say that a lateral flow fan or a sirocco fan can also be used.

The fan 12 which is a blowing means in the ozone fumigation path 16 can be arbitrarily changed in rotation speed by inverter control. During ozone fumigation, the rotation speed of the fan 12 can be changed arbitrarily to change the environment. The ozone generation amount can be adjusted in an optimum operating condition depending on the conditions, for example, the size of the room, temperature and humidity. That is, the fan 12
This is because the amount of ozone decomposition can be adjusted by the number of revolutions, and if it is provided on the downstream side, ozone that is actually generated will be adsorbed by the fan and ozone decomposed by the rotating action, which will affect the ozone generation efficiency. Here, the term "during ozone fumigation" refers to a case where the ozone concentration is high and sterilization and deodorization are performed directly indoors when there is no person.

When ozone is deodorized in the air purifying path 15, the rotation speed of the fan 11 is increased to increase the wind speed and the air volume, and the ozone decomposition amount is increased to supply harmless air. It is also possible. Here, when ozone is deodorized, sterilization is performed in the air purifying apparatus 1. However, ozone is decomposed by an ozone decomposing catalyst in the apparatus 1, and deodorization is performed by the deodorizing action at this time. When to do.

When ozone is used for sterilization and deodorization,
For sterilization, an ozone generator with an ozone generation rate of several hundred to several thousand mg / h is used.
By using an ozone generator of about h, ozone can be effectively used, safety is ensured during deodorization, and the life of the ozone decomposition catalyst can be extended. It is also possible to adjust the ozone generation amount by adjusting the output of the ozone generator.

An electrostatic precipitator 9 or a photocatalyst 10 can be provided downstream of the ozone decomposition catalyst 8. When the electric dust collector 9 is used, it electrically decomposes the residual ozone odor. Further, at this time, negative ions are obtained, and it is possible to supply air in an environment favorable to the human body. When a photocatalyst is used, the residual ozone odor is decomposed by the redox action.

Since ozone has a low reactivity to, for example, ammonia, it may be possible to place an activated carbon filter on the downstream side of the ozone decomposition catalyst. However, activated carbon cannot adsorb a substance having a small molecular weight and deodorizes. The function has a life problem mainly due to the adsorption action.

If, for example, a photocatalyst is used instead of the activated carbon filter, it is possible to deodorize and sterilize not only ammonia but also acetoaldehyde, trimethylamine, acetic acid, methyl mercaptan, styrene, hydrogen sulfide, nitrogen oxides over a wide range. Become. The deodorizing function has a long life, mainly due to the redox action, and also has a deodorizing and bactericidal action. In addition, activated carbon itself does not have a bactericidal effect, so that it easily becomes a hotbed for bacteria, but photocatalyst does not have such a phenomenon.

The features of the sterilizing / deodorizing system for pathogenic bacteria will be described in detail below. In the air cleaning device 1, as a constituent element of the sterilization / deodorization system, untreated air is used. 2, ultraviolet lamp 3, photocatalyst excitation pump 4, photocatalyst filter 5, deodorizing ozone generator 7, ozone decomposition catalyst device 8, electrostatic precipitator 9
Alternatively, the photocatalyst 10, the air cleaning fan 11, the ozone sensor 13 and the like are provided, and the ozone fumigating path 16 is provided with the ozone generator 6 for sterilization, the ozone fumigating fan 12 and the like in the ozone fumigating route 16. . Further, in the drawing, an embodiment is shown in which the ozone fumigation path 16 is provided in parallel adjacent to the air cleaning path 15.

In FIG. 2A, a long lamp type ozone generator 6 which does not generate NOx is shown, but as shown in 2 of FIG. 2, the discharge type ozone generator 6 is also used. It can be carried out. An ozone generator power supply 60 is provided for that purpose. In this case, the shape can be further reduced, which results in compactness and downsizing. It is also possible to change the ozone generation amount to some extent by adjusting the voltage.

Further, in the present invention, since the air cleaning device 1 is provided in two systems, one for air cleaning and the other for fumigation of ozone,
When the ozone generator 6 is installed in the ozone fumigation path 16, it is possible to install it along the flow path with a sufficient margin even if the shape is long, even if the capacity is increased. Become.

First, an ultraviolet lamp 3 having a wavelength of 254 nm
When the irradiation is carried out by this, the airborne bacteria contained in the untreated air, here, the thermal energy of the ultraviolet lamp 3 damages the DNA of the bacterium, and as a result, the self-propagating function is formed by the formation of the chimming dimer. Lower.

For airborne bacteria contained in untreated air, a combination of ultraviolet rays of a specific wavelength and a photocatalyst is effective. That is, the characteristic feature of the titanium oxide photocatalyst system is that the reaction occurs when its surface comes into contact with water. Due to its adsorptivity, if it is not completely dry, a reaction will occur even if it comes into contact with air.

For the titanium oxide photocatalyst, preferably UV radiation in the wavelength range 315-400 nm is suitable for exciting the photocatalyst. When the ultraviolet lamp 4 having a wavelength of about 400 nm hits the surface of titanium oxide, a strong oxidation potential of 3 V is generated, water is decomposed and active oxygen is generated. This has a larger oxidation potential than chlorine, hydrogen peroxide, ozone, etc., and can decompose and oxidize almost everything.

Therefore, if a photocatalyst excitation lamp 4 (also referred to as a black light lamp), which is a type of ultraviolet lamp, is provided, the redox potential of 3 V is generated by irradiation of the light.
The titanium oxide photocatalyst (anatase type) photocatalytic filter 5 is further activated, active oxygen is generated, and bacterial spores and verotoxin are destroyed.

On the other hand, the ultraviolet lamp 3 without a photocatalyst in the preceding stage may be a normal germicidal lamp having a wavelength of 100 to 280 nm. This is because the photocatalyst has an effect of causing the action, but it is low. In this way, if the normal UV irradiation is performed in the previous stage and the photocatalyst is irradiated by changing the wavelength of the UV, the bactericidal effect can be further enhanced.

When the irradiation of ultraviolet rays in the previous stage is reversed,
This is because the active oxygen changes the surface layer of the spores and a part of the DNA inside, and the generation of TDHT in the spores is suppressed during UV irradiation, and the bactericidal effect is reduced because some bacteria cannot be completely sterilized.

After that, ozone gas having a redox potential of 2.8 V generated by the ozone generator 6 for sterilization or the ozone generator 7 for deodorization again damages the spores of the DNA-deformed bacteria to cause a bacteriolysis phenomenon, Stop the growth of bacteria.

As described above, when the ultraviolet lamp 3 and the photocatalyst are used in addition to the ozone gas, the sterilizing action can be complemented with each other by their advantages. That is, ozone gas can be filled and sterilized even outside the range where ultraviolet rays cannot reach, and when ultraviolet rays or a photocatalyst is used, ozone gas easily damages the spores of cells and further sterilization effect is obtained.

When air is supplied to the room, the ozone generator 7 for deodorization is used, ozone is decomposed by the ozone decomposition catalyst device 8, and 0.1 ppm or less of ozonized air is supplied. Since the ozone decomposition catalyst device 8 is made of manganese dioxide, ozone decomposition can be performed efficiently even in a low temperature range, and sterilization and deodorizing effects can be expected even with active oxygen generated during ozone decomposition.

A heater (not shown) may be provided in order to avoid a decrease in effect due to a water film, dirt, etc. generated on the surface of the ozone decomposition catalyst device 8. The hot air from the heater heated to about 50 degrees provides desorption and regeneration functions.

In the air purifying apparatus 1, an antibacterial agent which can be expected to be effective at all times can be used for the constituent equipment of the apparatus or the casing steel plate of the apparatus. As the antibacterial agent, an inorganic antibacterial agent that is safe and has high heat resistance is used.

The inorganic antibacterial agent has a broad antibacterial spectrum and is effective in not causing resistant bacteria. As a method of maximizing the sterilization / deodorization effect, when an antibacterial agent is mixed in a paint, the dispersibility is improved and the antibacterial effect can be improved by floating the antibacterial agent on the surface.

When an inorganic antibacterial agent is mixed in a coating material, in order to improve dispersibility, the antibacterial agent is agglomerated to disperse the coating material by thoroughly mixing and dispersing it in a solvent or the like and then mixing with the coating material. And

Bacteria that have come into contact with the antibacterial agent die by causing metal cations (eg, silver, zinc, copper ions, etc.) to destroy the protein and cause a bacteriolysis phenomenon. The air purifying device 1 mainly has a function of sterilizing and deodorizing falling adherent bacteria. The above configuration enables systematic sterilization and deodorization.

If a coating film containing an antibacterial agent is applied to the inside of the air cleaning device 1, the growth of bacteria or the like is usually suppressed inside the air cleaning device 1, and sterilization is always performed regardless of whether ozone gas is generated or not. Be affected.

As described above, the antibacterial agent can be expected to have a sterilizing action not only when a gas is generated like ozone gas, but also when it is used in combination with ozone gas, it becomes possible to further extinguish bacteria, and it is possible to use only ozone gas. The sterilization time can be shortened and the cost can be reduced.

In performing sterilization and deodorization, the following treatment methods in the outline, the room and the air cleaning device are performed when manned or unmanned. (1) Indoor sterilization and deodorization when unattended (2) Indoor sterilization and deodorization when manned

The sterilization and deodorization of the room when unattended will be described.

When there are no people in the room, such as at night,
Guide ozone into the room and fumigate the room with ozone. That is,
Maintain a high ozone concentration for a period of time. This makes it possible to strongly sterilize the inside of the room.

Specifically, when there is no person inside the room, that is, when there is no person in the room, such as at night, the ozone generator 6 for sterilizing the ozone fumigation unit is operated to cause the ozone fumigation fan 12 to operate.
While operating the, only the air containing ozone is introduced into the interior of the chamber.

In this case, as described above, the fan 12, which is the air blowing means, can have its rotation speed arbitrarily changed by the inverter control, and the ozone generator can be adapted to the environmental conditions. Here, the term "during ozone fumigation" means that the ozone concentration is high, that is, the case where sterilization is performed directly in a room when there is no person.

While maintaining this state, the ozone concentration is applied for a certain period of time to sterilize the room.

After this, the operation of the air cleaning fan 11 of the air cleaning device 1 is restarted again. The untreated residual ozone air is sucked into the ozone decomposition catalyst device 8. In this way, the air inside the chamber circulates and the ozone is decomposed by the action of the ozone decomposition catalyst device 8. Hereinafter, the operation of the ozone decomposition catalyst device after sterilization and deodorization is similarly performed.

Thus, the ozone concentration in the zero atmosphere inside the chamber decreases and reaches the human safety limit or less. At that time, the operation of the air cleaning device 1 is stopped.

Next, the supply of the sterilized and deodorized circulating air to the room when manned is described.

Further, even when a person is always present in the room, the air is guided into the air cleaning path 15 of the air cleaning device 1 so that the ozone generated by the ozone generator 7 is supplied to the ozone decomposition catalyst device 8. By the decomposition action, a bactericidal action and a deodorizing action can be performed at the same time.

The sterilized and deodorized air from the air cleaning device 1 maximizes the number of rotations of the fan 11 and increases the wind speed and volume, so that the residual ozone air is forced by the flow of strong and strong wind in the fan 11. It can also be naturally decomposed, and is supplied to the room after it is made harmless and odorless.

If the electric dust collector 9 or the photocatalyst 10 is used in addition to spontaneously decomposing the residual ozone gas by the high speed rotation of the fan 11, the synergistic effect on the human body
You can supply safer air.

When the ozone decomposing catalyst device 8 is operated and the air cleaning device 1 is operated in the air cleaning passage 15 of the air cleaning device 1, the air passing through the device 1 is subjected to a sterilizing action.

The air that has been subjected to this sterilizing action is supplied to the room through a duct or the like. By performing such air circulation, the sterilizing action in the air in the room is continuously performed. The ozone from the ozone generator 7 is naturally decomposed and rendered harmless by the action of the ozone decomposition catalyst device 8.

As the antibacterial means, it is possible to remove dust and oil smoke attached to the antibacterial sheet or the painted portion by circulating ozone gas or simply by circulating air.

Further, in the air purifying apparatus 1, the ozone concentration is constantly controlled by the ozone sensor 13 at the fan outlet, and when the ozone sensor 13 detects a value above the allowable value, the ozone generator 7 is immediately activated. Stop so that it is below the allowable value.

As described above, according to the present invention, the circulating air can be sent for sterilization / deodorization as needed, or for sterilization / deodorization when manned.

By providing the above configuration, the present invention can exhibit the expected operation.

[0076]

The air cleaning apparatus of the present invention is provided with an ozone generator, an ozone decomposition catalyst device, a sterilizing / deodorizing means, and a blowing means, and the inside of the apparatus is for ozone fumigation having a path 16 for ozone fumigation. Section and the air cleaning section having the air cleaning path 15 are sufficient for sterilizing and deodorizing the air in the room and the associated flow paths, etc., depending on the time when manned or unmanned. It became possible to sterilize and deodorize both manned and unmanned.

Since an ozone generator and an ozone decomposition catalyst device are provided as sterilizing / deodorizing means, not only the strong sterilizing power of ozone gas but also the deodorizing effect can be expected sufficiently.

Conventionally, when there are people, that is, people,
Since it was impossible to sterilize and deodorize,
Although it was significantly restricted at night, it became possible to respond to occupancy and deodorization of each room, air purifying device, and associated flow paths at any time, even when manned.

In the above-mentioned prior art, a sterilizing means is additionally provided only inside the air conditioner or in the flow path, and since it temporarily passes through the room, it is difficult to completely sterilize it. However, since the real sterilization method was effectively arranged, it became possible to do it intensively and continuously. In particular, according to the present invention, it is possible to surely and intensively perform sterilization and deodorization, particularly in the room.

Further, in the conventionally used ultraviolet lamp, since the sterilization can be carried out only in the irradiated portion or within the reach of irradiation, the sterilization in the non-irradiated portion was incomplete, so that the propagation of bacteria Inevitably, the bactericidal effect was extinguished, but ozone gas, even outside the reach of ultraviolet rays,
It could be filled and sterilized, and when it was used together with ozone gas, a further effect was obtained.

Further, if an antibacterial means is provided in the air purifier, in addition to the strong sterilizing power of ozone gas, the bactericidal action can be expected at all times regardless of whether ozone gas is generated or not. When used together, it becomes possible to more strongly exterminate bacteria, and the sterilization time can be shortened and the cost can be reduced by using only ozone gas.

In addition to ozone gas, if an ultraviolet lamp and a photocatalyst are used and normal ultraviolet irradiation is carried out in the preceding stage to irradiate a UV wavelength that produces active oxygen of the photocatalyst, the ozone gas In addition, the bactericidal effect can be further enhanced.

Further, even when the antibacterial agent sheet has been used for a long period of time, dust, oily smoke, etc. have adhered near the surface of the antibacterial agent-containing coating film, but ozone gas or circulating air is circulated in the air cleaning device. Therefore, dust and oil smoke are prevented from adhering.

Further, by separately providing the ozone fumigation route and the air cleaning route, it is possible to minimize the deterioration of the equipment due to corrosion during ozone fumigation,
It facilitates maintenance and maintenance.

In particular, in the ozone fumigation route, since there is no equipment provided downstream of the ozone generator that may be affected by corrosion, use an ozone generator that produces a large amount of ozone. In addition, since the ozone generator has two systems, a sufficient space is provided for installing the ozone generator, so that the ability during fumigation of ozone can be significantly improved.

In the air purifying route, since the ozone decomposing catalyst is provided on the downstream side, the ozone concentration is in the ozone fumigating route due to the strong sterilizing / deodorizing action of active oxygen generated during ozone decomposing. Compared with, less is required. Furthermore, the effect of the photocatalytic action is added, which is even more so.

In the present invention, by providing the above two systems separately, the height of the center of gravity of the apparatus can be further lowered, which is preferable for stability. Therefore, it becomes possible to freely move to each room by attaching a moving caster.

If a fan is provided on the downstream side of the ozone generator in the air cleaning path 15 and on the upstream side in the ozone fumigation path 16, ozone is generated when used for ozone fumigation or air cleaning, respectively. And can be more preferable for decomposition.

[Brief description of drawings]

FIG. 1 shows an embodiment of an air cleaning device of the present invention.

FIG. 2 shows a conceptual diagram of the air cleaning device of the present invention.

[Explanation of symbols]

1 Air purifier 2 Antibacterial medium performance filter 3 UV lamp 4 Photocatalyst excitation lamp 5 Photocatalytic filter 6 Ozone generator 60 Ozone generator power supply 7 Ozone generator for deodorization 8 Ozone decomposition catalyst device 9 Electric dust collector 10 Photocatalyst 11 Air cleaning fan 12 Ozone fumigation fan 13 Ozone sensor 15 Air cleaning route 16 Ozone fumigation route

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-221166 (JP, A) JP-A-6-165910 (JP, A) JP-A-1-269846 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) B01D 53 / 86,53 / 94 B01J 21/00-38/00 A61L 9/00

Claims (2)

(57) [Claims] 1. An air purifying apparatus equipped with an ozone generator, a sterilizing / deodorizing means which is an ozone decomposing catalyst device, and a fan, wherein an ozone fumigating section having an ozone fumigating path and an air purifying path are provided in the apparatus. And a fan is provided upstream of the ozone generator in the ozone fumigation path, and a fan is provided downstream of the ozone generator in the air purification path. An air purifier characterized by 2. An air purifying path of an air purifying section in an air purifier is provided with an ultraviolet lamp, a photocatalyst excitation lamp, a photocatalyst, an ozone generator, a sterilizing / deodorizing means for an ozone decomposing catalyst device, and a fan. A fan and an ozone generator are provided in the ozone fumigation path of the fumigation unit, and the fan of the air cleaning path is downstream of the ozone generator, and the fan of the ozone fumigation path is the ozone generator. Air cleaner installed upstream of the