KR20180131843A - Module for air cleaning comprising ceramic support body - Google Patents

Abstract

The present invention relates to an air cleaning module comprising a ceramic support. More specifically, the present invention relates to an air cleaning module including a ceramic support. By disposing a sterilizing part on the upper side of a channel part, a distance between a light source and the polluted atmosphere flowing through a channel formed on the channel part is reduced, thereby effectively removing contaminants. In addition, by making contact between the polluted atmosphere and a photocatalyst coated on the channel part easy, it is possible to increase air cleaning efficiency.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a module for air cleaning,

The present invention relates to an air cleaning module including a ceramic support, and more particularly, to a sterilizing unit for sterilizing air by reducing a distance between a pollution atmosphere and a heat source and a light source moved through a channel formed in a channel portion, And a ceramic support capable of effectively removing contaminants and increasing air purification efficiency by facilitating contact between the photocatalyst coated on the channel portion and the polluting atmosphere.

Rapid industrialization has led to the development of science and technology and industry, but has also caused serious environmental problems. Air pollution and water pollution are representative. Air pollution is mainly caused by soot or toxic gas, and water pollution is mainly caused by wastewater containing toxic substances generated during manufacturing processes of various petrochemical products.

In general, environmental pollutants caused by air pollution or water pollution are treated physically, chemically, biologically or in a parallel manner. Typically, adsorption methods, cooling condensation methods, chemical liquid cleaning methods, direct combustion methods, and catalytic oxidation methods have been used.

The adsorption method and the cooling condensation method are limited in their use because they can not fundamentally treat contaminants. The chemical solution washing method is a chemical deodorization method through neutralization reaction between a pollutant and a chemical, which shows a high pollutant removal rate in a limited space. However, the chemical solution cleaning method requires an additional device for spraying the chemical agent so that the chemical agent and the contaminant react effectively in a wide area where the pollutant source is generated. In the case of the pollutant source generating a high concentration of pollutants, There is a disadvantage that it is necessary to use the chemical of the chemical. In addition, the direct combustion method and the catalytic oxidation method are methods of oxidizing and removing pollutants, and they have a high removal rate, but generate secondary pollutants such as NO _x and SO _x , and are expensive.

Recently, a photocatalytic oxidation method has been popular as a treatment method considering the above problems. In photocatalytic oxidation, electrons and holes are generated when light energy of band gap energy or more is irradiated to photocatalyst, and vapor or liquid phase adsorbed on the photocatalyst surface due to strong oxidizing power of hydroxide radical (OH) And the reaction in which organic matter is decomposed is used. The photocatalyst absorbs light energy and exhibits catalytic activity. The strong oxidizing power generated at this time oxidizes and decomposes the environmental pollutants. Examples of the photocatalyst material include TiO ₂ , ZnO ₂ , ZnO, SrTiO ₃ , CdS, GaP, InP, GaAs, BaTiO ₃ , KNbO ₃ , Fe ₂ O ₃ , Ta ₂ O ₅ , WO ₃ , SnO ₂ , Bi ₂ O ₃ , NiO, Cu ₂ O, SiO, SiO ₂ , MoS ₂ , InPb, RuO ₂ , CeO ₂ and the like. Of these, titanium dioxide (TiO ₂ ) is most harmless to human body, has excellent photocatalytic activity, is excellent in light corrosion resistance, and is inexpensive.

Conventional air purification module using photocatalytic oxidation has a flat plate type photocatalytic sheet having no undulation, a photocatalytic sheet bent on the top of a flat type photocatalytic sheet, and a light source positioned below the flat type photocatalytic sheet to purify the polluted atmosphere flowing in a bending form .

Conventional air purification modules, however, are far from the energy source, so it takes time to reach the heat or UV that emanates from the energy source and reduces the amount of heat or UV in contact with the polluting atmosphere, There is a problem that more energy is consumed.

Further, the heat generated from the energy source is transferred to the photocatalytic sheet (or the ceramic support), and the temperature of the module for purifying the air is increased.

In this regard, there is a need for an air purification module that includes a ceramic support capable of reducing the distance between the energy source and the polluting atmosphere, and removing heat generated from the energy source without adding additional equipment.

Japanese Patent No. 10-5467283

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide an air purifying method, which comprises a ceramic support on which a sterilizing part is located above a channel part where a channel is formed to reduce a distance between a pollution atmosphere, Module.

It is another object of the present invention to provide a ceramic supporting body which surrounds the outer circumferential surface of the generating part in order to prevent heat or light generated from a heat source and a light source from being transmitted to a lower layer and a channel layer, And an air purifying module.

An air purifying module including a ceramic support according to an embodiment of the present invention includes a lower layer portion; And a first channel portion located above the lower layer portion and having a channel formed therein; And a sterilizing unit located above the channel unit and oxidizing / reducing or sterilizing the pollution atmosphere.

In one embodiment, the flow path is formed in any one of a parallel type, a serpentine type, and a spiral type.

In one embodiment, the channel is characterized by a height of 0.5 mm to 5 mm.

In one embodiment, the flow path is characterized in that the surface is coated with a photocatalyst.

In one embodiment, the lower layer portion is characterized by including pores.

In one embodiment, the pores are characterized by an average pore diameter of at least 10 mu m.

In one embodiment, the air cleaning module comprises: an upper layer; And a second channel portion located between the upper layer portion and the sterilizing portion and having a flow channel formed therein.

In one embodiment, the sterilizing unit includes at least one generating unit for irradiating the polluting atmosphere with energy of any one of a heat source and a light source; And a support portion surrounding the outer surface of the generation portion.

In one embodiment, the generator is characterized in that it comprises at least one of an IR lamp, a UV lamp, and a UV LED.

In one embodiment, the support is characterized by comprising any one of ceramic and metal.

According to the present invention, there is provided a channel shape in which a lower portion is located below a channel portion where a channel is formed, and a top is opened, a distance between the pollution atmosphere flowing through the channel and the energy source is reduced, Facilitates contact with the atmosphere The contaminants such as VOC _s, No _x, SO _x is an effect of effectively removing occurs.

Further, according to the present invention, heat generated from the generating portion (heat source and light source) is not transmitted to the ceramic support by providing the generating portion by wrapping with the heat insulating material, thereby preventing the temperature of the air cleaning module from rising sharply .

1 is a perspective view of a first ceramic support according to an embodiment of the present invention.
2 is a perspective view illustrating an air purification module including a ceramic support according to an embodiment of the present invention.
3 is a perspective view illustrating an air purification module including first and second ceramic supports according to another embodiment of the present invention.

The present invention will now be described in detail with reference to the accompanying drawings. Hereinafter, a detailed description of known functions and configurations that may unnecessarily obscure the gist of the present invention will be omitted. The embodiments of the present invention are provided to fully explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of the elements in the drawings and the like can be exaggerated for clarity.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

Hereinafter, preferred embodiments of the present invention will be described in order to facilitate understanding of the present invention. However, the following examples are provided only for the better understanding of the present invention, and the present invention is not limited by the examples.

<Air purification module>

< Example  1>

FIG. 1 is a perspective view of a first ceramic support 10 according to an embodiment of the present invention. FIG. 2 is a perspective view of an air purification module 100 including a first ceramic support 10 according to an embodiment of the present invention. Fig.

The ceramic support 10 according to the present invention may include a lower layer portion 1 and a channel portion 2 and an air purification module 100 according to an embodiment of the present invention may include a ceramic support 10 and a sterilizing portion 20).

The lower layer portion 1 is located at the outermost portion of the ceramic support body 10 and may be formed by stacking one or more green sheets (not shown). In one embodiment, the lower layer portion 1 can be manufactured by laminating two to six green sheets. At this time, the green sheet can be produced by a tape casting method. More specifically, the method of manufacturing the lower layer portion 1 is a method in which a ceramic slurry is prepared by mixing ceramic powder, solvent, dispersant, binder and plasticizer , The ceramic slurry is spread thinly on the base tape using a tape caster. Thereafter, one or more green sheets produced by passing the base tape on which the ceramic slurry has been applied by using the rails to the dry chamber, and then removing the base tape may be laminated to provide the lower layer portion 1.

The lower layer portion 1 may include pores. When the external atmosphere of the air purifying module 100 according to an embodiment of the present invention is introduced into the ceramic support body 10 through the lower layer portion 1, the lower layer portion 1 may serve as a filter by pores. For example, the external atmosphere is introduced into the first channel part 2, which will be described later, through the pores of the lower layer part 1, and the pore may serve as a channel of the first channel part 2. Therefore, when the outside air is introduced through the pores, the energy of the sterilizing unit 20, which will be described later, is irradiated to the lower layer 1 to oxidize / reduce pollutants in the outside air, have.

Here, the average diameter of the pores included in the lower layer portion 1 may be 10 m or more. If the average diameter of the pores is less than 10 mu m, the inflow of outside air is not smooth, and the lower layer portion 1 can not function as a filter. The pores of the lower layer portion 1 may be formed with the particle size of the ceramic powder, or may be formed by adding a pore-forming agent that can be removed during the firing process in the production of the ceramic slurry.

The first channel part 2 forms a channel through which a pollution atmosphere flows and can be positioned between the lower layer part 1 and the sterilizing part 20 so that the gap between the lower layer part 1 and the sterilizing part 20 And the like.

The channel can flow through the polluted atmosphere and thereby serve as a passage for bringing the heat irradiated by the sterilizing unit 20, which will be described later, or the UV and the polluting atmosphere into contact with each other. The air cleaning module 100 according to the present invention uses a catalytic oxidation method as a method for purifying polluted air. In the catalytic oxidation method, contaminants can be efficiently removed as the contact time between the irradiated energy and the air pollution is increased. Accordingly, the first channel part 2 according to the present invention can be coated with a photocatalyst and can change the type of channel, thereby increasing the time for energy to contact the pollution atmosphere. The catalytic oxidation method is a principle of decomposing pollutants into harmless substances by oxidizing and reducing the pollutants by irradiating a heat source or a light source (for example, UV) to the pollutant atmosphere. Oxidation and reduction reactions occur on the surface of the catalyst, The removal efficiency of pollutants may be changed according to the distance between the catalyst and the catalyst. That is, as the surface area of the catalyst increases or the distance between the pollutant and the catalyst decreases, the pollutant removal efficiency may increase.

Accordingly, the first channel part 2 according to the present invention can modify the channel structure to increase the length of the passage through which the pollution atmosphere flows. The channel according to an exemplary embodiment may be formed in any one of a parallel type, a serpentine type, and a spiral type.

In the present specification, the term "equilibrium" may be a form in which one or more channels serving as a passage through which the pollution atmosphere flows in the first channel part 2 are provided in parallel with each other. When the channels are provided in equilibrium, there are many paths through which the pollution atmosphere flows into the first channel part 2, so that the pollution atmosphere can be purified in a short time.

As used herein, the term "hanging" may be provided in the form of an equilibrium in which two ends of one channel are connected, for example, the first of the first and second channels is continuous and the second and third of the channel are continuous. Alternatively, the channel may be provided in a 'd' shape in the width direction of the ceramic support 10.

As used herein, "helical" may be provided in the form of a circular or square rotating channel to the center of the ceramic support 10.

Here, in the case of the hanging and spiral type, the pollution atmosphere can be more efficiently removed by increasing the time for the pollution atmosphere to stay on the ceramic support 10 than the equilibrium.

Here, the photocatalyst is coated only on the channel of the first channel part 2, that is, on the surface of the passage through which the pollution atmosphere flows, so that an economical effect can be obtained by reducing the amount of expensive catalyst used.

The height of the channel formed in the first channel part 2 may be 0.5 mm to 5 mm. If the height of the channel is less than 0.5 mm, the flow of the pollution atmosphere may not be smooth. If the height of the channel is more than 5 mm, the distance between the pollution atmosphere and the sterilizing unit 20 becomes long, So that the contamination of the polluting atmosphere can not be effectively removed.

The first channel portion 2 can be manufactured by two methods. A multi-channel tape casting method and a channel cutting method. The multi-channel tape casting may be performed by alternately applying a ceramic slurry and a carbon slurry to a tape casting die divided in the longitudinal direction of the first channel portion 2 to manufacture and laminate one or more tapes to manufacture the first channel portion 2 can do. Here, the carbon slurry may be oxidized to form a channel in the process of firing to bond the lower layer portion 1 and the first channel portion 2.

The channel cutting method includes the steps of laminating two or more green sheets manufactured by the tape casting method to produce a flat sheet, cutting the laminated sheet at a predetermined interval to remove the stacked portion corresponding to the channel, Can be produced.

After the lower layer portion 1 and the first channel portion 2 are laminated and fired at a temperature of 1300 ° C or higher to bind them, the ceramic substrate 10 can be manufactured by coating a channel surface with a photocatalyst.

The sterilizing unit 20 according to the present invention may function to oxidize / reduce or sterilize the polluted atmosphere by a photocatalyst by irradiating a heat source or a light source to the polluted atmosphere flowing in the channel. The sterilizing unit 20 may include the generating unit 3 and the supporting unit 4. [ The generating unit 3 may include energy of any one of a heat source and a light source. For example, the heat source may include an IR lamp, and the light source may include a UV lamp or a UV LED. The sterilizing unit 20 may include at least one generating unit 3, which may be one type of generating unit 3 or two types of generating units 3. For example, when the sterilizing unit 20 includes three generating units 3, three IR lamps may be included, or one IR lamp, one UV lamp, and one UV LED may be included.

The supporting portion 4 is configured to fix the generating portion 3 to the upper portion of the first channel portion 2. The supporting portion 4 surrounds the outer surface of the generating portion 3, And may be made of a heat insulating material so as not to radiate to the outside. For example, after the generator 3 is positioned at a predetermined distance on the same plate as the ceramic support 10, a space other than the generator 3 is filled with a heat insulating material such as ceramic or metal, Can be prepared.

The sterilizing unit 20 may be sealed and bonded to the ceramic support 10 so that the pollution atmosphere does not escape to the outside.

< Example  2>

3 is a perspective view illustrating an air cleaning module 100 'including first and second ceramic supports 10 and 30 according to another embodiment of the present invention.

The air cleaning module 100 'according to another embodiment of the present invention may include a first ceramic support 10, a second ceramic support 30, and a sterilizing portion 20. [

The ceramic support bodies 10 and 30 having the same structure are disposed on the upper and lower sides of the sterilizing unit 20 so that the generating unit 3 is irradiated in the upward and downward directions, Lt; / RTI &gt;

The second ceramic support 30 according to another embodiment of the present invention may include an upper layer portion 5 and a second channel portion 6.

The first ceramic support 10 and the sterilizing portion 20 have the same advantages and effects as those of the configuration described above and the upper layer portion 5 and the second channel portion 6 have the advantages of the lower layer portion 1 and the first channel portion 6 described above, And the structure, manufacturing method, and effect of the second embodiment are the same as those of the first embodiment, and a detailed description thereof will be omitted.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1: Lower layer
2:
3: Generator
4: Support
5: Upper layer
6:
10: first ceramic support
20: sterilizing unit
30: second ceramic support
100, 100 ': air purifying module

Claims (10)

Lower layer; And a first channel portion located above the lower layer portion, the first channel portion including a channel through which a pollution atmosphere flows; And
And a sterilizing unit located above the first channel unit and oxidizing / reducing or sterilizing the pollution atmosphere.
An air purification module comprising a ceramic support.
The method according to claim 1,
The channel may comprise:
Wherein the ceramic support is formed in a shape of a parallel type, a serpentine type, or a spiral type.
The method according to claim 1,
The channel may comprise:
Wherein the ceramic support has a height of 0.5 mm to 5 mm.
The method according to claim 1,
The channel may comprise:
A module for air purification comprising a ceramic support, characterized in that the surface is coated with a photocatalyst.
The method according to claim 1,
The lower-
Wherein the ceramic support comprises pores. &Lt; RTI ID = 0.0 &gt; 11. &lt; / RTI &gt;
6. The method of claim 5,
The pore may be,
And an average pore diameter of 10 占 퐉 or more.
The method according to claim 1,
Wherein the air-
Upper layer; And a second ceramic support located between the upper layer and the sterilizing part, the second ceramic support including a channel and a channel formed therein.
The method according to claim 1,
The sterilizing unit includes:
At least one generating unit for irradiating the polluting atmosphere with energy of any one of a heat source and a light source; And
And a support portion surrounding the outer surface of the generating portion.
9. The method of claim 8,
The generating unit includes:
An infrared lamp, an IR lamp, a UV lamp, and a UV LED.
9. The method of claim 8,
The support portion
Wherein the ceramic support comprises at least one of ceramic and metal.

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