JP2003310724A - Air cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air cleaner capable of reducing the effect of an air introducing part on an air cleaning function part to prevent the lowering of the capacity of an air cleaning function and capable of suppressing the lowering of a photocatalytic function in such a case that the content of steam in air is much. <P>SOLUTION: The air cleaner has an introducing means 2 for introducing air A to be treated into a reactor 10, the reactor 10 having a suction port 101 and an exhaust port 102 and constituted so that air A to be treated introduced by the introducing means 2 is subjected to cleaning treatment by a photocatalyst part 4 in the reactor 10 to be discharged to the outside as cleaned air P, the photocatalyst part 4 provided in the reactor 10 and decomposing a substance to be decomposed in air A to be treated and a light source 3 provided in the reactor 10 to excite the photocatalytic function of the photocatalyst part 4. The introducing means 2 includes a fan provided on the downstream side of the photocatalyst part 4 on the flow channel of air A to be treated. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an air cleaner,
In particular, it relates to a new improvement of an air cleaner using a photocatalyst capable of decomposing and removing bacteria, malodorous components, harmful gases and the like contained in the air.

[0002]

2. Description of the Related Art Typical components of offensive odors and harmful gases are nitrogen compounds such as ammonia, amines, indole and skatole, hydrogen sulfide, methyl mercaptan,
There are sulfur compounds such as methyl sulfide, methyl disulfide, and dimethyl disulfide, aldehydes such as formaldehyde and acetaldehyde, ketones such as acetone, alcohols such as methanol and ethanol, and the like.

Conventionally, a method of adsorbing such an offensive odor or harmful gas with an adsorbent such as activated carbon or zeolite has been the mainstream, but in recent years, such a harmful gas or the like has been adsorbed using a photocatalyst. The technology of decomposing into harmless water and carbon dioxide is widely used, and various air purifiers incorporating a photocatalyst have been proposed.

FIG. 8 is an explanatory view of a vertical section showing the structure of a conventional air cleaner. In the figure, the conventional air cleaner 10
0 is purified by the introduction means (fan) 2 for introducing the air A to be treated into the reactor 10 and the photocatalyst portion 4 provided therein with the 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 discharged as purified air P to the outside, and the reactor 10 for decomposing a substance to be decomposed in the air A to be treated.
It has a photocatalyst part 4 provided inside and a light source 3 provided inside the reactor 10 for expressing a photocatalytic function in the photocatalyst part 4.

In the conventional air cleaner 100, an air filtering means (filter) 50 is provided on the front side of the exhaust port 102. The air A to be treated is attracted and introduced into the reactor 10 from the intake port 101 by the rotation of the introduction means (fan) 2, and flows down inside the reactor 10 toward the exhaust port 102. Photocatalyst part 4 provided inside the reactor 10
Is irradiated with light from the light source 3 to cause photoexcitation to develop a photocatalytic function, and the air A to be treated flowing down to the reaction zone where the photocatalyst section 4 is provided is contacted with the photocatalyst section 4 to Substances that are subject to decomposition by photocatalysts such as harmful gases contained therein (hereinafter referred to as "substances subject to decomposition")
Is oxidatively decomposed and detoxified to become the treated air A and becomes the purified air P. When the air filtering means 50 is provided, the substance to be filtered in the air is filtered by the purified air P.
Passes through it, through the exhaust port 102, to the reactor 1
It is discharged to the outside. With the above configuration and operation, the air A to be treated containing the substance to be decomposed is processed into the purified air P by the air purifier 100 and is delivered to the environment.

That is, in the conventional air cleaner, a fan is provided on the upstream side of the air cleaning function part such as the photocatalyst part, and the air to be treated containing not only the decomposition target substance but also the filtration target substance is blown by the fan. It is a method of being forcibly sent out to the reaction zone of the photocatalyst part by being attracted to.

[0007]

However, the conventional air cleaner has the following problems. That is,
When the fan attracts the air to be treated, the substance to be filtered contained in the air and foreign substances having the same size as that of the air mainly adhere to the wake side of the fan itself. The wake side of the fan itself faces the air purification function section such as the photocatalyst section on the wake side, and the introduction and delivery of the air to be processed into the air purification function section by the fan adhered to the fan at the same time. There is a possibility that the substance may be introduced and sent out. In this case, an extra load is applied to the air purification function unit such as the photocatalyst unit, which causes a reduction in the performance of the air purification function. 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 an 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 is large, which is disadvantageous in terms of manufacturing cost. In addition, it is necessary to remove the fan for the maintenance of the filter, which is disadvantageous in maintenance.

While various effects and methods of using a photocatalyst in the air cleaning function section have been reported, one of the problems to be solved is the effect of the water vapor content in the air, that is, the humidity, on the photocatalytic effect. . That is, the effect of the photocatalytic function decreases when the amount of water in the air to be treated is large. It is desired to develop an air cleaner that can exhibit its photocatalytic function sufficiently even in a high humidity environment. Including this point, further development of a function that complements or assists the photocatalytic function is desired.

On the other hand, especially for home use and the like,
The air purifier, which is one of the means to support the production of living spaces, is also required to have compatibility as an interior.
It is also of great significance to have a structure with workability that can exert such design value.

In view of the above-mentioned drawbacks of the prior art and the above respective points of view, the problem of the present invention is to prevent the deterioration of the performance of the air cleaning function by first reducing the influence of the air introducing section on the air cleaning function section. It is to provide an air purifier that can. Another object of the present invention is to provide an air purifier that can suppress the deterioration of the photocatalytic function when the air purifying function section uses a photocatalyst when the water vapor content in the air is high.

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

Another object is to provide a method of manufacturing an air purifier having a workability capable of exerting a design value as an interior.

[0014]

As a result of a study by the inventors of the present application in order to solve the above problems, as a result, it is possible to reduce the influence of the phenomenon caused by the operation of the fan on the air passage to be treated on the air cleaning function section. The inventors have found that the above problems can be solved by taking the following measures, and have completed the present invention. That is, the invention claimed in this application is as follows.

(1) Introducing means for introducing the air to be treated into the after-mentioned reactor, and the to-be-treated air introduced by the introducing means is purified by the after-mentioned photocatalyst portion provided therein to be purified air. And a photocatalyst part provided inside the reactor for decomposing a substance to be decomposed in the air to be treated, and a photocatalytic function in the photocatalyst part. A light source provided inside the reactor for expressing the above, wherein the introducing means includes a fan provided on the downstream side of the photocatalyst section on the air passage to be treated. An air purifier characterized by.

(2) Introducing means for introducing the air to be treated into the reactor described later, and a tube for purifying the air to be treated introduced by the introducing means by the photocatalyst portion, which is provided therein, and is discharged. -Shaped reactor, a photocatalyst part provided inside the reactor for decomposing the substance to be decomposed in the air to be treated, and a photocatalyst part provided inside the reactor for exciting the photocatalytic function in the photocatalyst part An air purifier having a light source, wherein the introducing means is a fan provided on the downstream side of the photocatalyst section on the air passage to be treated.

(3) A substance that can be filtered other than the substance to be decomposed in the air to be treated (hereinafter, also referred to as "the substance to be filtered") on the upstream side of the photocatalyst portion in the air flow passage to be treated.
An air purifier according to (1) or (2), characterized in that it is provided with an air filtering means for filtering the air.

(4) The air filtering means is composed of two or more filters having different pore diameters for filtering the substance to be filtered stepwise according to its size.
(3) Air purifier.

(5) A water vapor adsorbing means for at least temporarily adsorbing water vapor in the air to be treated is provided on the upstream side of the photocatalyst section in the air passage to be treated. An air purifier according to any one of (4) to (4).

(6) A decomposition target substance adsorbing means for at least temporarily adsorbing the decomposition target substance in the air to be treated is provided on the upstream side of the photocatalyst portion in the air passage to be treated. The air purifier according to any one of (1) to (5).

(7) The water vapor adsorption means also serves as the decomposition object substance adsorption means.
(5) Air purifier.

(8) The air purifier according to (7), characterized in that the water vapor adsorbing means also serving as the decomposition target material adsorbing means is made of a porous material such as charcoal and earthenware.

(9) The air purifier according to any one of (1) to (8), wherein the reactor is a ceramics.

(10) One or more exhaust ports are provided on the side surface of the reactor,
The air purifier according to any one of (1) to (9).

(11) One or two or more exhaust ports are provided, and the reactor is used by being placed in a state where the direction of the air passage to be treated is substantially vertical.
The air purifier according to any one of (1) to (9).

(12) An air cleaning method using the air cleaner according to any one of (1) to (11), wherein the fan provided on the downstream side of the photocatalyst section is rotated, The air to be treated at the position on the upstream side of the photocatalyst portion is introduced into the photocatalyst portion, and the introduced air to be treated is purified in the photocatalyst portion where the photocatalytic function is expressed by the light source to obtain purified air, Purified air is discharged from the said exhaust port, The air purification method characterized by the above-mentioned.

That is, according to the present invention, in order to prevent the deterioration of the performance of the air cleaning function by reducing the influence of the air cleaning section on the air cleaning function section, the position where the air introducing section (fan) is provided is set. , A solution is provided on the air flow path to be treated and on the downstream side of an air cleaning function section such as a photocatalyst section. As a result, it is possible to eliminate the possibility that the substance adhering to the air introduction part will be sent to the air purification function part, which is the center of the air cleaner function, by the operation of the air introduction part. This allows
An extra load is applied to the air purification function part such as the photocatalyst part,
It is possible to prevent the performance of the air purifier from being deteriorated by reducing the air purifying function. In particular, when using a photocatalyst, if the photocatalytic unit's oxidative decomposition function of the substance to be decomposed is impaired by substances that are not scheduled to be processed such as substances to be filtered or foreign substances and cannot be fully exerted, the performance of the air cleaner will be reduced. Although leading to a large reduction, the problem of the present invention is solved by the configuration of the present invention.

Further, according to the present invention, in order to reduce the influence of the air introduction part on the air purification function part and prevent the performance deterioration of the air purification function, the position where the air introduction part (fan) is provided. On the air flow path to be treated, on the downstream side of the air cleaning function section such as the photocatalyst section, and the air filtering means (filter) is installed on the upstream side of the air cleaning function section such as the photocatalyst section. provide. As a result, the substances to be filtered and foreign substances are removed from the air introduced into the air purification function part, and these substances, etc. are prevented from flowing into the air purification function part, and the functional deterioration of the air purification function part is prevented. However, it is possible to prevent the performance of the air purifier from deteriorating.

Since the air filtering means processes the substances to be filtered stepwise depending on the size of the substances to be filtered, it can be composed of two or more filters, but the cost of increasing the number of filters and the effect of the air filtering means are taken into consideration. Then, the number of installed filters can be determined.

Further, in the present invention, when the photocatalyst is used in the air cleaning function part, the problem of suppressing the deterioration of the photocatalytic function when the water vapor content in the air is large is addressed to the front side of the photocatalyst part to be treated. A solution is provided which provides a water vapor adsorbing means that can at least temporarily adsorb water vapor in the air. As a result, when the amount of water vapor in the air to be treated is high and it is a high humidity body, the amount of water vapor in it is adsorbed to reduce the amount of water vapor in the air to be treated, and it is passed to the photocatalyst part as if the humidity was adjusted appropriately. Therefore, the deterioration of the photocatalytic function in the photocatalytic part is suppressed. As the water vapor adsorption means, a simple porous material such as charcoal or earthenware can be used.

Here, it is sufficient that the water vapor adsorbing means can at least temporarily adsorb water vapor. This is because the water vapor adsorption function is exerted while the air to be treated flowing from the intake port into the reactor has a high humidity, and when the air to be treated has a low humidity, the adsorbed water vapor is discharged to the outside. Any means may be used as long as it does not cause an increase in humidity that would impair the photocatalytic function even if it is released. That is, the 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 exhibiting such a humidity control effect.

Further, according to the present invention, the function of supplementing or assisting the photocatalytic function with a simple structure is added to enhance the air cleaning function. It is provided as a solution to provide a decomposition target substance adsorbing means for at least temporarily adsorbing a decomposition target substance in the air. When the decomposition target substance contained in the air to be treated is excessive, the treatment limit of the photocatalytic function is exceeded, and the air cleaning function is not sufficiently exerted. Therefore, even if the substance to be decomposed is not decomposed like a photocatalyst, it is at least temporarily adsorbed and stored internally so that the substance to be decomposed in an appropriate range can flow to the photocatalyst part. Make the decomposition reaction process smooth. When the concentration of the decomposition target substance in the air to be treated decreases, the decomposition target substance adsorbed inside the decomposition target substance adsorbing means is released to the outside of the means as in the case of the above-mentioned water vapor, and the photocatalyst on the downstream side is discharged. It may be a means provided for processing by a department.

That is, at least temporary adsorption includes reversible adsorption and release, and in the present invention, the effect of concentration adjustment for keeping the concentration of the substance to be decomposed constant or within a constant range is simplified. A simple porous material such as charcoal or earthenware can be used as a means for exerting the above.
Therefore, with simple porous materials such as charcoal and earthenware,
The water vapor adsorbing means and the decomposition target substance adsorbing means can also serve as both. As a result, the photocatalytic function of the air purifier can be complemented or supplemented.

In addition, the present invention solves the problem of providing a method of manufacturing an air purifier having workability capable of exerting a design value as an interior, by solving the problem of forming a reactor by a ceramic material. provide. That is, in addition to the internal structure preparation step of manufacturing and preparing internal structural parts and units such as an air purification function section such as a photocatalyst section, a light source, a fan, a filter, a control circuit, etc., a reactor manufacturing step using a ceramic is provided. An air purifier using the reactor as a ceramic material can be manufactured by going through the process of incorporating the respective parts and units prepared in the internal structure preparing process into the reactor manufactured in the reactor manufacturing process.

The ceramic material is a processed material having high formability and design, and by using this in the production of a reactor, it is possible to provide an air cleaner having high formability and design and exhibiting a design value as an interior. You can In particular, air purifiers intended for household use, etc. will be required to have designability and various ergonomic characteristics suitable for living space design in the future. By configuring the air purifier with a material having processability capable of exerting the value to be obtained, it is possible to contribute to further increase in wealth of human society.

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

[0037]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the drawings. FIG. 1 is an explanatory view of a vertical section showing the configuration of the air purifier of the present invention. In the figure, the air purifier 1 has an introduction means 2 for introducing the air A to be treated into the reactor 10.
The air to be treated A introduced by the introduction means 2 is purified by the photocatalyst portion 4 provided therein, and becomes purified air P, which is then discharged to the outside.
02, a photocatalyst part 4 provided inside the reactor 10 for decomposing a substance to be decomposed in the air A to be treated, and a photocatalyst part for exhibiting a photocatalytic function in the photocatalyst part 4. A light source 3 provided inside the reactor 10; and the introducing means 2 includes a fan provided on the downstream side of the photocatalyst section 4 on the flow path A of the air to be treated,
The main configuration. The introduction means 2 can thus only be the fan (2). As the fan, an appropriate one can be used.

In the figure, the air purifier 1 of the present invention has an air for filtering a substance (filtering substance) other than the decomposition target substance in the air A to be treated, on the upstream side of the photocatalyst part 4. A filtering unit 5 can be provided, and a filter having an appropriate structure can be used as the air filtering unit.

In the figure, since the air purifier 1 is constructed as described above, the air A to be treated is rotated by the introduction means 2 so that the air to be treated A is provided at the most upstream portion of the reactor 10.
The air A to be treated is attracted and introduced into the reactor 10 through 1, and the air A to be treated is caused to flow into the reaction zone where the photocatalyst part 4 is provided, while the light emitted from the light source 3 causes photoexcitation in the photocatalyst part 4 and a photocatalytic function. And the substance to be decomposed contained in the air A to be treated is the photocatalyst part 4
Contacting with the photocatalyst of No. 1 and being oxidatively decomposed into a harmless substance, whereby the air A to be treated becomes the purified air P, and 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 figure, when the air filtering means 5 is provided, the air A to be treated 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 inside is filtered,
With the substance to be filtered removed, the reactor 10
It flows down to the inner wake side. As a result, the photocatalyst unit 4 is
A smooth photocatalytic reaction is performed without an extra load other than the substance to be decomposed.

In the figure, the photocatalyst unit 4 is a substrate, a paper filter, a photocatalyst body in the form of crystals, powder, or other shapes.
A photocatalyst-supported material is prepared by supporting it on a silica fiber filter or other suitable medium by a suitable method, and this is used as a reactor 10.
It can be provided by being provided around the inner wall portion inside. As the photocatalyst, an oxide capable of exhibiting a photocatalytic effect such as titanium oxide can be appropriately used. As the light source 3, a light source capable of causing photoexcitation in the photocatalyst, such as a black light germicidal lamp, can be appropriately used.

FIG. 2 is an explanatory view of a vertical section showing another structure of the air purifier of the present invention. In the figure, this air purifier 1
Can be constituted by two or more filters 51, 52, ... Having different pore diameters for stepwise filtering the substance to be filtered according to its size. 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. Can increase the service life of the filter. 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 be configured.

FIG. 3 is an explanatory view of a vertical section showing another structure of the air purifier of the present invention. In the figure, this air purifier 1
The water vapor adsorbing means 8 for at least temporarily adsorbing the water vapor in the air A to be treated can be provided on the front side of the photocatalyst portion 4 on the air A to be treated flow path. At the same time, a decomposition target substance adsorbing means 9 for at least temporarily adsorbing the decomposition target substance in the air A to be treated can be provided on the upstream side of the photocatalyst unit 4. As a result, the water vapor in the air to be treated A, the substance to be decomposed, or both are at least temporarily adsorbed by the functions of the respective means, and inhibit the photocatalytic reaction contained in the air to be treated A. The amount of water vapor is reduced, the content is adjusted, or a substance to be decomposed that exceeds the oxidative decomposition treatment capacity of the photocatalyst is prevented from flowing into the photocatalyst part 4, that is, the supply of the air A to be treated to the photocatalyst part 4 is qualitatively performed. The function of the adjusted photocatalyst unit 4 located on the downstream side can be complemented and assisted.

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

Particularly, charcoal has an excellent humidity control effect for dehumidifying and releasing moisture, an excellent effect of adsorbing harmful substances and malodorous substances, and is a simple and inexpensive means, and can be used in the constitution of the present invention. it can.

These may be provided on one side or on both sides. Further, the positional relationship on the air passage to be treated is not limited to which is on the upstream side.

FIG. 4 is an explanatory view of a vertical cross section showing another structure of the air purifier of the present invention. In the figure, this air purifier 1
The water vapor adsorbing means 8 may be the one 89 which also serves as the decomposition target substance adsorbing means 9.
For example, a simple and inexpensive porous material such as charcoal and earthenware can be used.

[0048]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to the following examples. Example 1 FIG. 5 is a longitudinal sectional view showing the configuration of Example 1 of the present invention, and FIG.
FIG. 7 is a component assembly view showing the configuration of the first embodiment of the present invention, and FIG. 7 is a perspective perspective view showing the configuration of the first embodiment of the present invention. In these figures, the air purifier of the first embodiment has a fan 22 for introducing the air to be treated into the reactor 210.
An intake port in which the air to be treated is introduced by the fan 22 and on which charcoal 289 is partially mounted; and charcoal 289 which also serves as a water vapor adsorption means and a decomposition target substance adsorption means,
A coarse filter 251 for filtering the air to be treated which has passed through the charcoal 289 or its vicinity, a finer filter 252 on the downstream side thereof, and a decomposition target contained in the air to be treated filtered by these filters 251 and 252. A photocatalyst part 24 in which a substance is oxidatively decomposed, and a light source 2 for irradiating the photocatalyst part 24 with light to cause a photoexcitation reaction.
3 and a reactor 210 containing these air cleaning functions
It consists of and. The exhaust port 2102 is used for the reactor 210.
A plurality of them are provided on the side surface of.

In Example 1, the reactor 210 is made of ceramic material. Appropriate materials can be used as the ceramic material to form a product unique to the ceramic production areas in Japan or all over the world. For example, Kokuji ware, which is a traditional pottery in northern Iwate prefecture, can be used.
As shown in FIG. 6, the internal structure parts and units and the reactor are manufactured in separate steps, and the parts and units prepared in these steps are incorporated into the reactor to manufacture the air cleaner of Example 1. To be done.

In the first embodiment, the reactor 210 is placed and used in a state where the direction of the air passage to be treated is substantially vertical. Therefore, the air to be treated is attracted from above by the operation of the fan 22 and is introduced into the reactor 210,
At that time, when the amount of water vapor in the air to be treated is large, it is at least temporarily adsorbed by the charcoal 289 mounted on the intake port, and when the substance to be decomposed in the air to be treated is large, this is at least temporarily. The air to be treated is adsorbed by and is adjusted to a water vapor amount (humidity) and a harmful gas concentration suitable for the photocatalyst portion 24 to smoothly oxidize and decompose the decomposition target substance. When the amount of water vapor in the air to be treated and the concentration of the substance to be decomposed are low, the water vapor and the substance to be decomposed adsorbed on the charcoal 289 are appropriately released into the air to be treated, and the photocatalyst unit 2
4 is adjusted to the amount of water vapor (humidity) and the concentration of harmful gas and the like within a range suitable for smoothly oxidizing and decomposing the substance to be decomposed.

After being treated by the charcoal 289, the air to be treated is filtered step by step with the substances to be filtered by the filters 251 and 252, and the substance to be filtered is efficiently and effectively removed from the air to be treated. It

The substance to be decomposed in the air to be treated from which the substance to be filtered is removed is oxidatively decomposed in the photocatalyst section 24 which is photoexcited by the light source 23. As the photocatalyst portion 24, an appropriate one can be used as described above. For example, a titanium oxide photocatalyst crystal supported on a sheet-shaped base material may 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 portion 24 is the purified air, and the purified air is attracted by the operation of the fan 22 and is directed to the lower side surface of the cylindrical reactor 210. A plurality of exhaust ports 2102 provided
Is discharged from the outside. In this way, the air to be treated is purified by the air purifier of the embodiment 1 into purified air, which is delivered to the environment.

Purified air is discharged through a plurality of exhaust ports 2102.
As a result, the diffusion of the purified air into the environment is performed more unintentionally and evenly, so that the environment such as the room can be cleaned quickly and gently.

The air purifier of Example 1 has a reactor made of a ceramic material such as Kokuji ware, which makes it possible to construct a highly valuable interior.

[0056]

According to the air purifier of the present invention, since it is configured as described above, the influence of the air introducing portion on the air purifying function portion is reduced and the deterioration of the performance of the air purifying function is prevented. can do. Further, when a photocatalyst is used in the air cleaning function section, it is possible to suppress the deterioration of the photocatalytic function even when the water vapor content in the air is large.

Further, according to the air cleaner of the present invention, when the substance to be decomposed is excessive, this substance can be temporarily adsorbed and the air supply to the photocatalyst unit can be qualitatively adjusted.
The photocatalytic function can be complemented or assisted by a simple structure.

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

[Brief description of drawings]

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

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

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

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

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

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

FIG. 7 is a perspective perspective view showing the configuration of the first embodiment of the present invention.

FIG. 8 is an explanatory view of a vertical cross section showing a configuration of a conventional air cleaner.

[Explanation of symbols]

1, 100 ... Air purifier, 2 ... Introducing means, 22 ... Fan, 3, 23 ... Light source, 4, 24 ... Photocatalyst part, 5
... Air filtering means, 51, 52, 251, 252 ... Filter 8 ... Water vapor adsorbing means, 9 ... Decomposition object substance adsorbing means, 89 ... Water vapor adsorbing means also serving as decomposition object substance adsorbing 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

Front page continuation (51) Int.Cl. ⁷ Identification code FI theme code (reference) B01D 46/12 B01D 46/12 53/26 101 53/26 101C 53/86 B01J 35/02 J B01J 35/02 F24F 7 / 00 A F24F 7/00 B01D 53/36 JF term (reference) 4C080 AA05 AA07 AA09 BB02 CC01 HH05 JJ03 KK08 LL02 MM05 QQ20 4D048 AA21 AB03 BB05 CA07 CA10 CC21 CC40 CD01 CD05 EA01 4D0512 B04 CA02 CC04 CC02 KB11 SA04 TA02 TA06 TA07 4G069 AA02 BA48A CA10 CA11 CA17 EE10

Claims (12)

[Claims] 1. Introducing means for introducing the air to be treated into the reactor described below, and the air to be treated introduced by the introducing means is purified by a photocatalyst portion provided therein to be purified air. A reactor provided with an intake port and an exhaust port, which is discharged to the outside, a photocatalyst part provided inside the reactor for decomposing a substance to be decomposed in the air to be treated, and a photocatalytic function in the photocatalyst part. An air purifier having a light source provided inside the reactor for developing,
The air purifier is characterized in that the introducing means includes a fan provided on a downstream side of the photocatalyst section in the air passage to be treated. 2. A tubular unit for introducing the air to be treated into the after-mentioned reactor, and the to-be-treated air introduced by the introducing unit is purified and discharged by the after-mentioned photocatalyst section provided therein. , A photocatalyst part provided inside the reactor for decomposing a substance to be decomposed in the air to be treated, and a light source provided inside the reactor for exciting the photocatalytic function in the photocatalyst part. An air purifier having: and the introducing means is a fan provided on the downstream side of the photocatalyst section on the air passage to be treated. 3. A filterable substance (hereinafter, also referred to as “filtering target substance”) other than a decomposition target substance in the target air is filtered on the upstream side of the photocatalyst portion on the target air flow path. Characterized in that the air filtering means of
The air cleaner according to claim 1 or 2. 4. The air purifier according to claim 3, wherein the air filtering means is composed of two or more filters having different pore diameters for filtering the substance to be filtered stepwise according to its size. Machine. 5. The water vapor adsorbing means for adsorbing water vapor in the air to be treated at least temporarily is provided on the front side of the photocatalyst section in the air to be treated flow path. 4. The air purifier according to any one of 4. 6. A decomposition target substance adsorbing means for at least temporarily adsorbing a decomposition target substance in the air to be treated is provided on the upstream side of the photocatalyst portion in the air passage to be treated. The air purifier according to claim 1. 7. The air purifier according to claim 5, wherein the water vapor adsorption means also serves as the decomposition target substance adsorption means. 8. The air purifier according to claim 7, wherein the water vapor adsorbing means also serving as the decomposition target material adsorbing means is made of a porous material such as charcoal and earthenware. 9. The air purifier according to claim 1, wherein the reactor is a ceramics. 10. The air purifier according to claim 1, wherein one or two or more exhaust ports are provided on a side surface of the reactor. 11. The one or more exhaust ports are provided, and the reactor is used by being placed in a state where the inside air passage direction of the reactor is substantially vertical. The air cleaner according to any one of 1 to 9. 12. An air cleaning method performed by using the air cleaner according to claim 1, wherein the photocatalyst is rotated by rotating a fan provided on the downstream side of the photocatalyst. The air to be treated at the position on the upstream side of the section is introduced into the photocatalyst portion, and the introduced air to be treated is purified in the photocatalyst portion where the photocatalytic function is expressed by the light source to obtain purified air, and the purification is performed. A method for cleaning air, characterized in that air is discharged from the exhaust port.