KR102148065B1 - Module for air cleaning comprising ceramic support body - Google Patents

Abstract

The present invention relates to an air purification module including a ceramic support, and more particularly, by placing a sterilization unit above the channel unit, reducing the distance between the polluted atmosphere and the heat source and the light source moving through the channel formed in the channel unit. It relates to an air purification module including a ceramic support capable of effectively removing pollutants and increasing air purification efficiency by facilitating contact between a photocatalyst coated on a channel portion and a polluted atmosphere.

Description

Air purification module including ceramic support {MODULE FOR AIR CLEANING COMPRISING CERAMIC SUPPORT BODY}

The present invention relates to an air purification module including a ceramic support, and more particularly, by placing a sterilization unit above the channel unit, reducing the distance between the polluted atmosphere and the heat source and the light source moving through the channel formed in the channel unit. It relates to an air purification module including a ceramic support capable of effectively removing pollutants and increasing air purification efficiency by facilitating contact between a photocatalyst coated on a channel portion and a polluted atmosphere.

Rapid industrialization brought about the development of science, technology and industry, but 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 the manufacturing process of various petrochemical products.

In general, environmental pollutants caused by air pollution or water pollution are treated by physical, chemical, biological, or a combination thereof. Typically, an adsorption method, a cooling condensation method, a chemical liquid washing method, a direct combustion method, and a catalytic oxidation method have been used.

Adsorption method and cooling condensation method cannot fundamentally treat pollutants, so their use is limited. The chemical cleaning method is a chemical deodorization method through a neutralization reaction of pollutants and chemicals, which shows a high pollutant removal rate in a limited space. However, the chemical cleaning method requires an additional device for spraying chemicals to effectively react with chemicals and pollutants in areas where pollutant sources are wide, and in pollutant sources that generate a large amount of pollutants of high concentration, a large amount for neutralization reactions. There is a downside to using chemicals. In addition, the direct combustion method and the catalytic oxidation method are methods of oxidizing and removing substances that cause pollution, and they have a high removal rate, but generate secondary pollutants such as NO _x and SO _x , and have a problem that the cost is high.

Recently, the photocatalytic oxidation method has been in the spotlight as a treatment method in consideration of the above problems. In the photocatalytic oxidation method, electrons and holes are generated when light energy greater than the band gap energy is irradiated to the photocatalyst. It uses a reaction that decomposes organic matter. The photocatalyst exhibits catalytic activity by absorbing light energy, and it oxidizes and decomposes environmental pollutants with the strong oxidizing power generated at this time. These photocatalytic materials 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 are exemplified. Among them, titanium dioxide (TiO ₂ ) is harmless to the human body, has excellent photocatalytic activity, has excellent light corrosion resistance, and is inexpensive, so it is most often used.

Conventional air purification module using the photocatalytic oxidation method purifies the polluted atmosphere flowing in a bent shape by placing a flat-type photocatalyst sheet without undulations, a photocatalyst sheet formed bent above the flat-type photocatalyst sheet, and a light source located under the flat-type photocatalyst sheet. It is characterized by letting go.

However, conventional air purification modules are far from the energy source, so it takes time to reach the heat or UV emitted from the energy source, and the amount of heat or UV in contact with the polluted atmosphere decreases, reducing the efficiency of removing pollutants. There was a problem that more energy was consumed.

In addition, since heat generated from the energy source is transferred to the photocatalyst sheet (or ceramic support) and the temperature of the air purification module is increased, an additional device for dissipating heat is required, which is an economic problem.

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

Japanese Patent Registration No. 10-5467283

The present invention has been conceived to solve the above-described problems, and an object of the present invention is for air purification including a ceramic support in which a sterilization unit is located above a channel portion in which a channel is formed in order to reduce the distance between the polluted atmosphere and the heat source and the light source. To provide a module.

In addition, it is an object of the present invention to prevent heat or light generated from a heat source and a light source from being transferred to the lower layer and the channel layer to increase the temperature of the ceramic support, so that a material having excellent insulation performance surrounds the outer circumference of the generating unit. It is to provide a module for air purification comprising a.

An air purification module including a ceramic support according to an embodiment of the present invention includes a lower layer; And a first channel portion positioned above the lower layer portion and having a flow path; And a sterilization unit positioned above the channel unit to oxidize/reduce or sterilize the polluted atmosphere.

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

In one embodiment, the flow path is characterized in that the height is 0.5mm to 5mm.

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

In one embodiment, the lower layer is characterized in that it includes pores.

In one embodiment, the pores are characterized in that the average pore diameter is 10㎛ or more.

In one embodiment, the air purification module, the upper layer; And a second ceramic support including a second channel portion disposed between the upper layer portion and the sterilizing portion and having a flow path formed therein.

In one embodiment, the sterilization unit, at least one generator for irradiating the energy of any one of a heat source and a light source to the polluted atmosphere; And a support part surrounding the outer surface of the generator.

In one embodiment, the generator is characterized in that it includes any one or more of an IR lamp, a UV lamp and a UV LED.

In one embodiment, the support is characterized in that it includes any one of ceramic and metal.

According to the present invention, the lower layer is located under the channel portion where the channel is formed to provide a channel shape with an open top, the distance between the polluted atmosphere flowing through the channel and the energy source is reduced, and the photocatalyst coated on the channel portion and the pollution By facilitating contact with the atmosphere The effect of efficiently removing pollutants such as VOC _s , No _x , and SO _x occurs.

In addition, according to the present invention, by being provided by wrapping the generating portion with an insulating material, the heat generated from the generating portion (heat source and light source) is not transferred to the ceramic support, thereby preventing the temperature of the air purification module from rapidly increasing. Occurs.

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

The present invention will be described in detail with reference to the accompanying drawings as follows. Here, repeated descriptions and detailed descriptions of known functions and configurations that may unnecessarily obscure the subject matter of the present invention will be omitted. Embodiments of the present invention are provided to completely explain the present invention to those with average knowledge in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

Throughout the specification, when a part "includes" a certain component, it means that other components may be further included rather than excluding other components unless otherwise stated.

Hereinafter, a preferred embodiment is presented to aid the understanding of the present invention. However, the following examples are only provided to more easily understand the present invention, and the contents of the present invention are not limited by the examples.

<Air purification module>

< Example 1>

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

The ceramic support 10 according to the present invention may include a lower layer portion 1 and a channel portion 2, and the air purification module 100 according to an embodiment of the present invention includes a ceramic support 10 and a sterilization unit ( 20) may be included.

The lower layer part 1 is located at the outermost side of the ceramic support 10 and may be formed by stacking one or more green sheets (not shown). In one embodiment, the lower layer part 1 may be manufactured by stacking 2 to 6 green sheets. At this time, the green sheet may be manufactured by a tape casting method.In more detail, the lower layer part 1 manufacturing method is after preparing a ceramic slurry by mixing ceramic powder, a solvent, a dispersant, a binder, and a plasticizer. , Using a tape caster, spread the ceramic slurry thinly on the base tape. Thereafter, one or more green sheets prepared by removing the base tape after passing the base tape coated with the ceramic slurry through the dry chamber using a rail may be stacked to provide the lower layer portion 1.

And, the lower layer portion 1 may include pores. When the external atmosphere of the air purification module 100 according to an embodiment of the present invention flows into the ceramic support 10 through the lower part 1, the lower part 1 may function as a filter by pores. For example, the external atmosphere flows into the first channel unit 2 to be described later through the pores of the lower layer unit 1, and at this time, the pores may serve as a channel of the first channel unit 2. Therefore, when the external atmosphere flows through the pores, the energy of the sterilization unit 20, which will be described later, is irradiated to the lower layer 1 to oxidize/reduce pollutants in the external atmosphere, so that the lower layer 1 can function as a filter. have.

Here, the average diameter of the pores included in the lower layer portion 1 may be formed to be 10㎛ or more. If the average diameter of the pores is less than 10 μm, the inflow of the external atmosphere is not smooth, and the lower layer 1 cannot function as a filter. In addition, the pores of the lower layer part 1 may be formed in a particle size of ceramic powder, or may be formed by adding a pore former that may be removed during the firing process when preparing the ceramic slurry.

The first channel part 2 forms a channel through which contaminated air is introduced, and can be located between the lower part 1 and the sterilization part 20, so that the gap between the lower part 1 and the sterilization part 20 Can play a role in maintaining.

The channel may serve as a passage for contacting the polluted atmosphere with heat or UV irradiated from the sterilization unit 20 to be described later by introducing and flowing the polluted atmosphere. The air purification module 100 according to the present invention uses a catalytic oxidation method as a method of purifying a polluted atmosphere. In the catalytic oxidation method, pollutants can be efficiently removed as the contact time between the irradiated energy and the air pollution increases. Accordingly, the first channel portion 2 according to the present invention may be coated with a photocatalyst, and the time for the energy contact with the polluted atmosphere may be increased by changing the type of the channel. The catalytic oxidation method is the principle of decomposing pollutants into harmless substances by oxidizing and reducing pollutants by irradiating a heat source or light source (e.g., UV) into the polluted atmosphere.As oxidation and reduction reactions occur on the surface of the catalyst, the surface area and pollutants of the catalyst The efficiency of removing pollutants may vary depending on the distance between the catalyst and the catalyst. That is, as the surface area of the catalyst increases or the distance between the pollutants and the catalyst decreases, the pollutant removal efficiency may increase.

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

In the present specification, "balance" may be a form in which one or more channels serving as a passage through which polluted atmosphere flows in the first channel unit 2 are positioned parallel to each other and provided. When the channels are provided in equilibrium, there are many passages through which the polluted atmosphere flows into the first channel unit 2, so that the effect of purifying a large number of polluted atmospheres in a short time may occur.

In the present specification, the "sand mold" may be provided in a form in which one end of two channels is connected in equilibrium, for example, the upper part of the first and second channels are connected, and the lower part of the second and third channels is connected. Alternatively, a channel may be provided in a'D' shape in the width direction of the ceramic support 10.

In the present specification, the "spiral" may be provided in a form in which a channel rotates in a circular or rectangular shape toward the center of the ceramic support 10.

Here, in the case of the sand mold and the spiral, since the time for the polluted atmosphere to stay in the ceramic support 10 increases rather than the equilibrium, it may be more efficient to remove pollutants.

Here, the photocatalyst is coated only on the surface of the channel of the first channel portion 2, that is, the passage through which the polluted atmosphere flows, thereby reducing the amount of expensive catalyst used, thereby generating an economical effect.

The height of the channel formed in the first channel portion 2 may be 0.5 mm to 5 mm. If the height of the channel is less than 0.5mm, there may be a problem that the flow of the polluted atmosphere is not smooth, and if the height of the channel is more than 5mm, the distance between the polluted atmosphere and the sterilization unit 20 is distant, so that the photocatalyst and the polluted atmosphere It may not be easy to contact with, and thus a problem may occur in that pollutants in the polluted atmosphere are not effectively removed.

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

In the channel cutting method, two or more green sheets manufactured by the tape casting method are stacked to produce a flat sheet, and then cut at regular intervals to remove the stacked body corresponding to the channel, thereby forming the first channel part (2). Can be manufactured.

After laminating the lower layer portion 1 and the first channel portion 2, firing at a temperature of 1300° C. or higher for bonding, and coating a photocatalyst on the channel surface, the ceramic support 10 may be manufactured.

The sterilization unit 20 according to the present invention may serve to oxidize/reduce or sterilize the contaminated atmosphere by a photocatalyst by irradiating a heat source or a light source to the contaminated atmosphere flowing through the channel. In addition, the sterilization unit 20 may include a generation unit 3 and a support unit 4. The generation unit 3 may include energy of any one of a heat source and a light source. For example, an IR lamp may be included as a heat source, and a UV lamp or a UV LED may be included as a light source. In addition, there may be more than one generation unit 3 included in the sterilization unit 20, and may be one type of generation unit 3 or two types of generation unit 3. For example, when the sterilization unit 20 includes three generation units 3, three IR lamps may be included, or one IR lamp, a UV lamp, and a UV LED may be included.

The support part 4 is a configuration for fixing the generator part 3 on the top of the first channel part 2, and the heat generated from the generator part 3 is surrounded by the outer surface of the generator part 3 It can be made of insulating material so that it does not radiate to the outside. For example, after placing the generation part 3 on the same plate as the shape of the ceramic support 10 at regular intervals, the space other than the generation part 3 is filled with an insulating material of ceramic or metal to provide a thermal insulation exterior. Can be manufactured.

Further, the sterilization unit 20 may be coupled to the ceramic support 10 by sealing so that the polluted atmosphere does not escape to the outside.

< Example 2>

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

An air purification module 100 ′ according to another exemplary embodiment of the present invention may include a first ceramic support 10, a second ceramic support 30, and a sterilization unit 20.

Since the ceramic supports 10 and 30 of the same structure are respectively positioned at the top and bottom with the sterilization unit 20 as the center, the generation unit 3 is irradiated in the up/down direction, thereby increasing the air purification efficiency by more than two times. Can occur.

In addition, 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 sterilization unit 20 have the same advantages and effects of the above-described configuration, and the upper layer portion 5 and the second channel portion 6 are the lower layer portion 1 and the first channel portion described above. Since (2) has the same structure, manufacturing method, and effect as in (2), a detailed description thereof will be omitted.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the following claims. You will understand that you can do it.

1: lower level
2: first channel unit
3: generator
4: support
5: upper part
6: second channel unit
10: first ceramic support
20: sterilization unit
30: second ceramic support
100, 100': module for air purification

Claims (10)

A lower layer containing pores; And a first channel portion positioned above the lower portion and having a channel through which the polluted atmosphere flows; And
At least one generator positioned above the first channel part and irradiating energy of one of a heat source and a light source to the polluted atmosphere; And a support unit that surrounds the outer surface of the generator and is formed of an insulating material to prevent heat generated from the generator from being radiated to the outside.
The sterilization unit,
It is characterized in that the sealing combination with the first ceramic support to prevent the polluted atmosphere from escaping to the outside,
Air purification module comprising a ceramic support.
The method of claim 1,
The channel,
Equilibrium (Parallel type), serpentine (Serpentine type) and spiral (spiral type), characterized in that formed in any one of the shape, air purification module including a ceramic support.
The method of claim 1,
The channel,
Air purification module comprising a ceramic support, characterized in that the height is 0.5mm to 5mm.
The method of claim 1,
The channel,
Air purification module comprising a ceramic support, characterized in that the photocatalyst is coated on the surface.
delete The method of claim 1,
The pore is,
An air purification module comprising a ceramic support, characterized in that the average pore diameter is 10 μm or more.
The method of claim 1,
The air purification module,
Upper part; And a second ceramic support comprising a; and a second channel portion positioned between the upper layer portion and the sterilization portion and having a channel formed therein. 2. A module for purifying air including a ceramic support.
delete The method of claim 1,
The generation unit,
An air purification module comprising a ceramic support, characterized in that it comprises at least one of an IR lamp, a UV lamp and a UV LED.
The method of claim 1,
The support part,
Air purification module comprising a ceramic support, characterized in that comprising any one of ceramic and metal.

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