JP3089444U - Air cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce the effect of an air introduction part on an air purification function part, it is possible to prevent a decrease in the performance of the air purification function, and to perform a photocatalytic function when the water vapor content in the air is large. To provide an air purifier capable of suppressing a decrease. SOLUTION: Introducing means 2 for introducing the air A to be treated into a reactor 10, and the air A to be treated introduced by the introducing means 2 are purified by a photocatalyst unit 4 provided therein to purify the purified air. Inlet 1 that is discharged to the outside as P
01 and an exhaust port 102, a photocatalyst unit 4 provided inside the reactor 10 for decomposing a substance to be decomposed in the air A to be treated, and for exciting a photocatalytic function in the photocatalyst unit 4. Light source 3 provided inside the reactor 10
And the introduction unit 2 includes a fan provided on the downstream side of the photocatalyst unit 4 on the air-to-be-processed A channel.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an air purifier, and more particularly to a new improvement of an air purifier using a photocatalyst capable of decomposing and removing bacteria, odorous components, harmful gases and the like contained in the air.

[0002]

[Prior art]

 Typical components of offensive odors and harmful gases include nitrogen compounds such as ammonia, amines, indole and skatole, and sulfur compounds such as hydrogen sulfide, methyl mercaptan, methyl sulfide, methyl disulfide and dimethyl disulfide. Aldehydes such as formaldehyde and acetate aldehyde; ketones such as acetone; and alcohols such as methanol and ethanol.

Conventionally, as a method of removing such bad smells and harmful gases, a method of adsorbing them with an adsorbent such as activated carbon or zeolite has been mainly used. In recent years, however, these harmful gases and the like have been used using a photocatalyst. The technology to decompose water into harmless water and carbon dioxide is widely used, and various air purifiers incorporating photocatalysts have been proposed.

FIG. 8 is an explanatory view of a longitudinal section showing a configuration of a conventional air cleaner. In the figure, a conventional air purifier 100 is provided with an introduction means (fan) 2 for introducing the air A to be treated into the reactor 10 and an air A to be introduced introduced by the introduction means 2 therein. A reactor 10 having an intake port 101 and an exhaust port 102, which is purified by the photocatalyst unit 4 and is discharged as purified air P to the outside, and a substance to be decomposed in the air A to be treated. It has a photocatalyst unit 4 provided inside the reactor 10 for decomposing, and a light source 3 provided inside the reactor 10 for developing a photocatalytic function in the photocatalyst unit 4.

[0005] In the conventional air purifier 100, an air filtering means (filter) 50 is provided in front of the exhaust port 102. The air to be processed A is drawn into the inside of the reactor 10 from the intake port 101 by the rotation of the introduction means (fan) 2, introduced, and flows down the inside of the reactor 10 toward the exhaust port 102. The photocatalyst unit 4 provided inside the reactor 10 is subjected to light excitation by irradiation of light from the light source 3 to exhibit a photocatalytic function, and the air to be treated flowing down to the reaction zone where the photocatalyst unit 4 is provided. A is a substance to be decomposed by a photocatalyst such as a harmful gas contained therein (hereinafter referred to as a “decomposition target substance”), which is oxidatively decomposed and made harmless by contact with the photocatalyst unit 4, and the air to be treated A Becomes the purified air P, and when the air filtering means 50 is provided, the purified air P passes through it while passing through the exhaust port 102 while the substance to be filtered in the air is filtered through the air. It is discharged out of the vessel 10. With the above configuration and operation, the air to be treated A containing the substance to be decomposed is processed into purified air P by the air purifier 100 and delivered to the environment.

That is, in the conventional air purifier, a fan is provided on the upstream side of an air cleaning function unit such as a photocatalyst unit, so that the air to be processed including not only a substance to be decomposed but also a substance to be filtered is removed. In this method, it is attracted by a fan and is forcibly sent out to the reaction zone of the photocatalyst section.

[0007]

[Problems to be solved by the invention]

 However, the conventional air purifier has the following problems. In other words, when the fan attracts the air to be treated, the substances to be filtered and foreign substances having the same level as that contained in the air are mainly attached to the downstream side of the fan itself. The downstream side of the fan itself faces the air purification function section such as the photocatalyst section on the downstream side, and the air to be processed is introduced and sent out to the air purification function section by the fan at the same time. In some cases, the introduction and delivery of the substance may be accompanied, and in this case, an extra load is applied to the air purifying function section such as the photocatalyst section, which may cause a decrease in the performance of the air purifying function. Become. This is because the phenomenon caused by the operation of the fan impairs the function provided in the downflow direction of the flow generated by the operation.

The above problem can be reduced by providing air filtering means (filter) on the downstream side of the fan and on the upstream side of the air cleaning function section. The number of parts increases, which is disadvantageous in terms of manufacturing cost. In addition, the maintenance of the filter requires removal of the fan, which is disadvantageous in terms of maintenance.

[0009] In addition, while various reports have been made on the effects and methods of using a photocatalyst in the air purification function section, one of the problems to be solved is the effect of the moisture content of air in the air on the photocatalytic effect, that is, the effect of humidity. is there. That is, if the moisture in the air to be treated is large, the effect of the photocatalytic function is reduced. There is a demand for the development of an air purifier that can sufficiently exhibit the photocatalytic function even in a high humidity environment. Including this point, the development of a function that complements or assists the photocatalytic function is also desired.

[0010] On the other hand, air purifiers, which are a means of supporting living space production, especially for home use, are also required to have suitability as interiors, but processing that can exhibit such design value. It is of great significance to have a configuration that has a unique nature.

In view of the above-mentioned drawbacks of the prior art and the above-described aspects, the problem of the present invention is to firstly prevent the performance of the air purifying function from deteriorating by reducing the influence of the air introduction unit on the air purifying function unit. It is to provide an air purifier that can be used. Another object of the present invention is to provide an air purifier that can suppress a decrease in the photocatalytic function when the content of water vapor in the air is large when a photocatalyst is used in the air purifying function section.

Still another object is to provide an air purifier having an enhanced air purifying function by adding a function capable of supplementing or assisting the photocatalytic function with a simple configuration.

Another object is to provide an air purifier having workability capable of exhibiting design value as an interior.

[0014]

[Means for Solving the Problems]

 As a result of an examination by the present inventor to solve the above-mentioned problems, as a result of adopting a configuration that reduces the influence of the phenomenon caused by the operation of the fan on the air passage to be processed on the air purification function unit, the above-described structure is adopted. We found that we could solve the problem and came to the present invention. That is, the inventions claimed in the present invention for utility model registration are as follows.

(1) Introducing means for introducing the air to be treated into the reactor to be described later, and the air to be treated introduced by the introducing means is purified and purified by a photocatalyst section provided therein. A reactor having an intake port and an exhaust port, which is converted into air and discharged to the outside, a photocatalyst provided inside the reactor for decomposing a substance to be decomposed in air to be treated, and the photocatalyst A light source provided inside the reactor for exhibiting a photocatalytic function in the section, wherein the introduction means is provided on the downstream side of the photocatalyst section on the air flow path to be treated. An air purifier comprising a fan.

(2) A substance that can be filtered other than the substance to be decomposed in the air to be treated (hereinafter, also referred to as “substance to be filtered”) is filtered on the upstream side of the photocatalyst section on the air flow path to be treated. The air purifier according to (1), further comprising an air filtering means for the air purifier.

(3) The air purifier according to (2), wherein the air filtration means comprises two or more filters having different pore diameters for filtering the substance to be filtered stepwise according to its size. .

(4) A steam adsorbing means for adsorbing water vapor in the air to be treated is provided at least on the upstream side of the photocatalyst section on the air flow path to be treated. The air purifier according to any one of (1) to (3).

(5) The water vapor adsorbing means also serves as a decomposing substance adsorbing means for at least temporarily adsorbing the decomposing substance in the air to be treated. ) Air purifier.

(6) The air purifier according to (5), wherein the water vapor adsorbing means also serving as the decomposition target substance adsorbing means is made of a porous material such as charcoal and earthenware.

(7) The air purifier according to any one of (1) to (6), wherein the reactor is a ceramic.

(8) The exhaust port is provided with one or two or more outlets, and the reactor is used in a state where the direction of an air passage to be treated is substantially vertical. 1) Air purifier according to any of (7).

That is, in the present invention, the position of providing the air introducing unit (fan) is to solve the problem of reducing the effect of the air introducing unit on the air purifying function unit and preventing the performance of the air purifying function from deteriorating. A solution on the downstream side of the air purification function section such as the photocatalyst section on the air flow path to be processed. This eliminates the possibility that the substance adhering to the air introduction section is sent out to the air purification function section, which is the center of the air purifier function, by the operation of the air introduction section. As a result, an extra load is applied to the air purifying function section such as the photocatalyst section, so that it is possible to prevent the air purifying function from being reduced and the performance of the air purifier from deteriorating. In particular, when using a photocatalyst, the performance of the air purifier can be reduced if the oxidative decomposition function of the decomposition target substance, which is handled by the photocatalyst unit, is not fully exhibited due to the impairment of substances not intended for treatment, such as the substance to be filtered, and foreign substances. However, the configuration of the present invention solves this problem.

In addition, the present invention solves the above-mentioned problem of reducing the effect of the air introduction unit on the air purification function unit and preventing the performance of the air purification function from being reduced, and thus, the position of the air introduction unit (fan). On the air flow path to be treated, on the downstream side of the air purification function section such as the photocatalyst section, and on the upstream side of the air purification function section such as the photocatalyst section. provide. As a result, substances to be filtered and foreign substances are removed from the air introduced into the air purifying function, and these substances are prevented from flowing into the air purifying function. It is possible to prevent a decrease in the performance of the air purifier.

The air filtration means can be constituted by two or more filters to process the substance in a stepwise manner according to the size of the substance to be filtered. However, the cost for increasing the number of filters and the effect of the air filtration means are high. The number of installed filters can be determined by considering

[0026] Further, the present invention has a problem in that when a photocatalyst is used in the air cleaning function unit, the problem of suppressing the deterioration of the photocatalyst function when the water vapor content in the air is large is covered on the upstream side of the photocatalyst unit. A solution for providing a water vapor adsorption means capable of at least temporarily adsorbing water vapor in process air is provided. As a result, when the amount of water vapor in the air to be treated is high and the substance is of a high humidity type, the amount of water vapor in the air to be treated is reduced by adsorbing the water vapor in the substance, and the humidity is adjusted appropriately to the photocatalyst section. It is intended to suppress the deterioration of the photocatalytic function in the photocatalyst section. As the water vapor adsorption means, a simple porous material such as charcoal and earthenware can be used.

Here, the water vapor adsorbing means only needs to be able to adsorb water vapor at least temporarily. This is because the water vapor adsorption function only needs to be exerted while the air to be treated flowing into the reactor from the intake port is at a high humidity. Any means that does not cause a rise in humidity that would impair the photocatalytic function, even if it is released into the air, may be used. In other words, temporary adsorption of water vapor includes reversible adsorption and release of water vapor. In the present invention, a simple porous material such as charcoal or earthenware can be used as a means for easily exerting such a humidity control effect.

Further, the present invention solves the problem of enhancing the air purifying function by adding a function capable of supplementing or assisting the photocatalytic function with a simple configuration, so that the upstream side of the photocatalyst section is processed. It is provided as a solution to provide a decomposition target substance adsorption means for at least temporarily adsorbing the decomposition target substance in the air. If the target substance contained in the air to be treated is excessive, the processing limit of the photocatalytic function is exceeded and the air purifying function is not sufficiently exerted. Therefore, even if the substance to be decomposed is not decomposed like a photocatalyst, it is adsorbed and stored at least temporarily inside the photocatalyst so that a suitable amount of the substance to be decomposed flows into the photocatalyst. So that the decomposition reaction can be performed smoothly. When the concentration of the substance to be decomposed in the air to be treated is reduced, the substance to be decomposed adsorbed inside the means for adsorbing the substance to be decomposed is released to the outside of the decomposing substance adsorbing means and the downstream side, as in the case of the steam described above. It can be a means provided for the treatment by the photocatalyst unit.

That is, at least temporarily adsorption includes reversible adsorption and release, and in the present invention, such an effect of concentration control that maintains the concentration of the decomposition target substance at a constant level or within a specific range is considered. A simple porous material such as charcoal or earthenware can be used as a simple means. Therefore, a simple porous material such as charcoal or earthenware can be used as both the above-mentioned water vapor adsorption means and the decomposition target substance adsorption means. Thus, the photocatalytic function of the air purifier can be supplemented or supplemented.

[0030] In addition, the present invention solves the problem of providing a method of manufacturing an air purifier having workability capable of exhibiting the design value as an interior by solving the problem of configuring a reactor with a ceramic material. I will provide a. In other words, apart from the internal structure preparation process for manufacturing and preparing the internal structure parts and units such as the air purification function unit such as the photocatalyst unit, the light source, the fan, the filter, and the control circuit, a reactor manufacturing process using ceramic is provided. It is possible to manufacture an air purifier using the reactor as a ceramic material by passing each part or unit prepared in the internal structure preparation process into the reactor manufactured in the reactor manufacturing process. it can.

Ceramic material is a processed material having high formability and design. By using this material in the manufacture of a reactor, an air purifier having high formability and design and exhibiting design value as an interior is provided. can do. In particular, air purifiers intended for home use and the like are required to have various design and ergonomic characteristics suitable for living space design in the future. By composing the air purifier with a material having workability that can exhibit the value that can be achieved, it can contribute to increasing the wealth of human society.

The type, amount, form, and the like of the photocatalyst used in the present invention are not particularly limited, and any known one can be used.

[0033]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view of a longitudinal section showing the configuration of the air purifier of the present invention. In the figure, an air purifier 1 includes an introduction means 2 for introducing air to be treated A into a reactor 10, and a photocatalyst unit 4 provided with air A to be treated introduced by the introduction means 2. A reactor 10 having an intake port 101 and an exhaust port 102, which is purified and purified air P and discharged to the outside, and inside the reactor 10 for decomposing a substance to be decomposed in the air A to be processed. And a light source 3 provided inside the reactor 10 for exhibiting a photocatalytic function in the photocatalyst unit 4. The main configuration is to include a fan provided on the downstream side of the photocatalyst section 4 on the road. That is, the introduction means 2 can be only the fan (2). An appropriate fan can be used.

In the figure, the air purifier 1 of the present invention is provided with air for filtering a substance (filtration target substance) other than the decomposition target substance in the air A to be treated, which is located upstream of the photocatalyst section 4. A filtering means 5 can be provided, and an appropriately configured filter can be used as the air filtering means.

In the figure, since the air purifier 1 is configured as described above, the air A to be treated is passed through the inlet 101 provided at the most upstream portion of the reactor 10 by the rotation of the introduction means 2, and the reaction is performed. The air to be treated A is drawn and introduced into the inside of the vessel 10, and the air to be treated A is flowed to the reaction zone where the photocatalyst section 4 is provided, while the light emitted from the light source 3 causes photoexcitation in the photocatalyst section 4 and the photocatalytic function is developed. The substance to be decomposed contained in the air to be treated A comes into contact with the photocatalyst of the photocatalyst section 4 and is oxidized and decomposed into a harmless substance, whereby the air to be treated A becomes purified air P, The purified air P is attracted by the introduction means 2 and discharged to the outside of the reactor 10 through the exhaust port 102.

In the drawing, when the air filtering means 5 is provided, the air to be treated A is introduced by the air filtering means 5 after being introduced into the reactor 10 and before flowing down to the reaction zone of the photocatalyst section 4. The substance to be filtered contained therein is filtered, and the substance to be filtered is removed, and flows down to the downstream side in the reactor 10. As a result, no unnecessary load other than the substance to be decomposed is applied to the photocatalyst unit 4, and a smooth photocatalytic reaction is performed.

In the figure, a photocatalyst unit 4 carries a photocatalyst in the form of a crystal, powder, or other shape on a substrate, a paper filter, a silica fiber filter, or another appropriate medium by an appropriate method. It can be installed around the inner wall of the reactor 10. As the photocatalyst, an oxide capable of exhibiting a photocatalytic effect such as titanium oxide can be used as appropriate. As the light source 3, a light source that can generate photoexcitation in a photocatalyst, such as a black light or a germicidal lamp, can be used as appropriate.

FIG. 2 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention. In the figure, the air purifier 1 comprises the air filtering means 5 comprising two or more filters 51, 52,... Having different pore diameters for filtering the substance to be filtered stepwise according to its size. be able to. As a result, in the filtration of the substance to be filtered in the air to be treated A, large-sized substances and foreign substances can be roughly filtered, and the air to be treated A from which this has been removed can be further finely filtered. The effect can be enhanced and the service life of the filter can be extended. The number of filters can be two as shown in the figure, but the present invention is not limited to the number of filters to configure.

FIG. 3 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention. In the figure, the present air purifier 1 is provided with a water vapor adsorption means 8 for adsorbing water vapor in the air to be treated A at least temporarily on the upstream side of the photocatalyst section 4 on the flow path of the air to be treated A. Can be provided. At the same time, on the upstream side of the photocatalyst section 4, a decomposition target substance adsorbing means 9 for at least temporarily adsorbing the decomposition target substance in the air to be treated A can be provided. As a result, the water vapor in the air A to be treated and / or the substances to be decomposed, or both, are at least temporarily adsorbed by the functions of the respective means, and the photocatalytic reaction contained in the air A to be treated is suppressed. The amount of water vapor to be inhibited is reduced or the content is adjusted, or the decomposition target substance in excess of the photocatalytic oxidative decomposition treatment ability is prevented from flowing into the photocatalyst unit 4, that is, the supply of the air A to be processed to the photocatalyst unit 4 is improved. Thus, the function of the photocatalyst unit 4 located downstream of the photocatalyst unit 4 can be complemented and assisted.

As the water vapor adsorption means 8 and the decomposition target substance adsorption means 9, those having an adjustment function capable of irreversibly adsorbing and releasing the adsorption target substance can be used. For example, a porous material such as charcoal and earthenware can be used.

In particular, charcoal is a simple and inexpensive means that has an excellent humidity control effect of dehumidifying and releasing moisture, and also has an excellent effect of adsorbing harmful substances and odorous substances. Can be.

These may be provided only on one side or on both sides. Further, the positional relationship on the air flow path to be processed is not limited to which one is on the upstream side.

FIG. 4 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention. In this figure, the air purifier 1 can use a device 89 in which the water vapor adsorption means 8 also functions as the decomposition target substance adsorption means 9. For example, a simple and inexpensive porous material such as charcoal and earthenware can be used.

[0044]

【Example】

 Hereinafter, the present invention will be described with reference to examples, but the present invention is not limited to the following examples. First Embodiment FIG. 5 is a longitudinal sectional view showing a configuration of a first embodiment of the present invention, FIG. 6 is a component assembly diagram showing a configuration of a first embodiment of the present invention, and FIG. 7 is a first embodiment of the present invention. FIG. 3 is a perspective perspective view showing a configuration. In these figures, the air purifier of the first embodiment includes a fan 22 for introducing the air to be treated into the reactor 210 and a charcoal 289 into which the air to be treated is introduced by the fan 22. A charcoal 289 also serving as a water vapor adsorption means and a substance to be decomposed adsorption means, a coarse filter 251 for filtering the air to be treated passing through or near the charcoal 289, A fine filter 252, a photocatalyst unit 24 in which a substance to be decomposed contained in the air to be processed filtered by the filters 251 and 252 is oxidatively decomposed, and a photoexcitation reaction is caused by irradiating the photocatalyst unit 24 with light. And a reactor 210 containing these air purifying functions. A plurality of exhaust ports 2102 are provided on the side surface of the reactor 210.

In the first embodiment, the reactor 210 is made of a ceramic material. By using appropriate ceramic materials, it is possible to construct products that are unique to ceramic production areas in Japan or around the world. For example, you can use Kokujiyaki, a traditional ceramic in northern Iwate Prefecture. As shown in FIG. 6, by manufacturing the internal structural parts and units and the reactor in separate processes, and incorporating the components and units prepared in these processes into the reactor, the air purifier of the first embodiment is completed. Manufactured.

In the first embodiment, the reactor 210 is used in a state in which the flow path of the air to be treated is substantially vertical. Therefore, the air to be treated is drawn from above by the operation of the fan 22 and is introduced into the reactor 210. At this time, if the amount of water vapor in the air to be treated is large due to the charcoal 289 placed at the intake port, This is at least temporarily adsorbed, and when there is a large amount of the substance to be decomposed in the air to be treated, it is at least temporarily adsorbed, and the air to be treated is used for the photocatalyst unit 24 to smoothly oxidize and decompose the substance to be decomposed. It is adjusted to a suitable amount of water vapor (humidity) and harmful gas concentration. If the amount of water vapor or the concentration of the substance to be decomposed in the air to be treated is low, the water vapor or the substance to be decomposed adsorbed on the charcoal 289 is appropriately released into the air to be treated, and the photocatalyst unit 24 smoothly removes the substance to be decomposed. The concentration of water vapor (humidity) and concentration of harmful gases, etc. within the range suitable for oxidative decomposition are adjusted.

After the above treatment with the charcoal 289, the air to be treated is filtered stepwise through the filters 251 and 252 to remove the substance to be filtered from the air to be treated efficiently and effectively. Is done.

The substance to be decomposed in the air to be treated, from which the substance to be filtered has been removed, is oxidatively decomposed by the photocatalyst unit 24 which is optically excited by the light source 23. As the photocatalyst section 24, an appropriate one can be used as described above. For example, a structure in which a titanium oxide photocatalyst crystal is supported on a sheet-shaped substrate can be provided around the inner wall of the reactor 210.

The air to be treated in which the substance to be decomposed is decomposed in the photocatalyst section 24 is purified air, and the purified air is drawn by the operation of the fan 22 and is located below the side surface of the cylindrical reactor 210. Are discharged to the outside through a plurality of exhaust ports 2102 provided in the air conditioner. In this way, the air to be treated is purified by the air purifier of the first embodiment, becomes purified air, and is supplied to the environment.

Since the purified air is discharged from the plurality of exhaust ports 2102, the diffusion of the purified air into the environment is performed more unconsciously and evenly, so that the environment such as a room can be quickly and calmly reduced. Can be cleaned.

The reactor of the air purifier of the first embodiment is made of a ceramic material such as Kokuji ware, so that the interior can have a high value as an interior.

[0052]

[Effect of the invention]

 According to the air purifier of the present invention, since the air purifier is configured as described above, it is possible to reduce the influence of the air introduction section on the air purification function section and prevent the performance of the air purification function from deteriorating. . In addition, when a photocatalyst is used in the air purifying function section, a decrease in photocatalytic function can be suppressed even when the water vapor content in the air is large.

Further, according to the air purifier of the present invention, when the substance to be decomposed is excessive, it is temporarily adsorbed and the supply of the air to be treated to the photocatalyst unit can be qualitatively adjusted. With such a configuration, the photocatalytic function can be complemented or assisted.

In addition, according to the present invention, it is possible to provide an air purifier having workability capable of exhibiting design value as an interior.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a longitudinal section showing a configuration of an air purifier of the present invention.

FIG. 2 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention.

FIG. 3 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention.

FIG. 4 is an explanatory view of a longitudinal section showing another configuration of the air purifier of the present invention.

FIG. 5 is a longitudinal sectional view showing a configuration of the first embodiment of the present invention.

FIG. 6 is a component assembly view showing the configuration of the first embodiment of the present invention.

FIG. 7 is a perspective perspective view showing the configuration of Embodiment 1 of the present invention.

FIG. 8 is an explanatory view of a longitudinal section showing a configuration of a conventional air purifier.

[Explanation of symbols]

1, 100: air purifier, 2: introduction means, 22: fan, 3, 23: light source, 4, 24: photocatalyst unit, 5
... air filtration means, 51, 52, 251, 252 ... filter 8 ... steam adsorption means, 9 ... decomposition substance adsorption means, 89 ... water vapor adsorption means also serving as decomposition substance adsorption means, 10, 210 ... reactor, 101 … Inlet,
102, 2102 ... exhaust port, 289 ... charcoal, 50 ...
Fan, A: Flow of air to be treated, P: Flow of purified air

Continued on the front page (51) Int.Cl. ⁷ Identification code FI B01D 53/26 101 B01D 53/26 101A 53/28 53/28

Claims (8)

[Utility model registration claims] 1. An introduction means for introducing air to be treated into a reactor described later, and the air to be treated introduced by the introduction means is purified by a photocatalyst unit provided therein to be purified air. A reactor having an intake port and an exhaust port discharged to the outside, a photocatalyst section provided inside the reactor for decomposing substances to be decomposed in air to be treated, and a photocatalytic function in the photocatalyst section. A light source provided inside the reactor for causing the expression, an air purifier comprising:
The air purifier, wherein the introduction means includes a fan provided on a downstream side of the photocatalyst section on the air passage to be processed. 2. A method for filtering a substance that can be filtered other than a substance to be decomposed (hereinafter, also referred to as a “substance to be filtered”) in the air to be processed, on the upstream side of the photocatalyst section on the air channel to be processed. Characterized by providing air filtration means of
The air purifier according to claim 1. 3. The air purifier according to claim 2, wherein the air filtering means comprises two or more filters having different pore diameters for filtering the substance to be filtered stepwise according to its size. Machine. 4. A steam adsorbing means for adsorbing water vapor in air to be processed at least temporarily on the air flow path to be processed upstream of the photocatalyst section. 3. The air purifier according to any one of 3. 5. The apparatus according to claim 4, wherein the water vapor adsorption means also serves as a decomposition substance adsorption means for at least temporarily adsorbing the decomposition substance in the air to be treated. Air purifier. 6. The air purifier according to claim 5, wherein the water vapor adsorbing means also serving as the means for adsorbing the substance to be decomposed is made of a porous material such as charcoal or earthenware. 7. The air purifier according to claim 1, wherein the reactor is a ceramic. 8. The exhaust port is provided with one or two or more,
The air purifier according to any one of claims 1 to 7, wherein the reactor is used in a state where a flow path of an air to be treated is substantially vertical.