KR20170105805A

KR20170105805A - Air purifying system using photocatalyst

Info

Publication number: KR20170105805A
Application number: KR1020160028917A
Authority: KR
Inventors: 김태관; 김종률; 이원근
Original assignee: 주식회사 티이
Priority date: 2016-03-10
Filing date: 2016-03-10
Publication date: 2017-09-20

Abstract

The present invention provides an air purification apparatus using a photocatalyst.
The air purifying apparatus using the photocatalyst includes a housing having an inlet through which air flows and an outlet through which air is discharged, a cylindrical body having a hollow inside and extending in the longitudinal direction of the housing, A photocatalytic tube coated with a photocatalyst having a corrugated cross section formed to bend into the photocatalytic tube, and a reactor including a first ultraviolet lamp disposed long in the longitudinal direction inside the photocatalytic tube.

Description

TECHNICAL FIELD [0001] The present invention relates to an air purifying apparatus using a photocatalyst,

The present invention relates to an air purification apparatus using a photocatalyst, and more particularly, to an air purification apparatus using a photocatalyst and a photocatalyst for removing harmful substances from the air by photo-oxidation reaction by ultraviolet rays.

Generally, the exhaust air discharged to the outside from sewage treatment plants or other odor generating facilities contains a large amount of harmful substances, especially harmful substances that generate odor and harmful substances such as bacteria and viruses.

An air purifier is used to solve such a problem. Various methods are applied to such an air purification apparatus. For example, a photocatalyst and a device for treating harmful substances in the air, especially odor-inducing substances and bacteria, are used by photooxidation reaction by ultraviolet rays.

However, in the conventional air purifier using a photocatalyst, there is a problem in that the contact time between the air and the photocatalyst is insufficient because the photocatalyst-coated carrier and the ultraviolet lamp are vertically arranged in the direction of the air flowing into the purifier.

In addition, since the conventional air cleaning apparatus is provided so that the inflow air moves linearly and rapidly passes through the air purification apparatus, the contact time with the photocatalyst carrier is very short, and the ratio of the air contacting the photocatalyst is small. Therefore, the air purification apparatus using the conventional photocatalyst has a problem that the efficiency of purifying the incoming air is low.

SUMMARY OF THE INVENTION The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to accelerate the decomposition of harmful substances in the air by increasing the contact of the incoming air with the photocatalyst.

In order to accomplish the above object, an air purification apparatus using a photocatalyst according to the present invention A housing having an inlet through which air is introduced and an outlet through which air is discharged; a cylindrical body formed into a long shape along the longitudinal direction of the housing and having a hollow therein; A photocatalyst tube coated with a photocatalyst, and a reactor including a first ultraviolet lamp disposed longitudinally in the photocatalytic tube.

The reactor may further include a first coating layer coated on the inner circumferential surface of the photocatalytic tube and a second coating layer coated on the outer circumferential surface of the photocatalytic tube so that the photocatalytic tube is spaced apart from the inner circumferential surface of the housing , And a second ultraviolet lamp may be installed between the reactor and the housing.

The housing may include a first photocatalyst carrier provided on an inner circumferential surface of the housing, the photocatalyst carrier housing the reactor and the second ultraviolet lamp, and having a third coating layer coated on the inner surface thereof.

The first photocatalytic carrier may be formed in a cylindrical shape and may have a corrugated section formed to be bent in the circumferential direction.

The plurality of reactors may be arranged in the housing, and the second ultraviolet lamp may be disposed between neighboring reactors.

The apparatus may further include a cylindrical second photocatalyst carrier disposed inside the housing in a longitudinal direction and coated with a photocatalyst on at least one of an inner circumferential surface and an outer circumferential surface of the second photocatalyst carrier, A second region in which a plurality of second ultraviolet lamps are arranged and a second region in which a plurality of the reactors and the second ultraviolet lamps are arranged is formed between an outer peripheral surface of the second photocatalyst carrier and an inner peripheral surface of the housing .

In addition, the second photocatalytic carrier may be formed in a cylindrical shape and may have a corrugated section formed to be bent in the circumferential direction.

The plurality of reactors are arranged in at least one of the first region, the first region, and the second region along the circumferential direction of the second photocatalyst carrier, and the second ultraviolet lamp is disposed between the reactors .

The apparatus may further include a vortex generating unit installed inside the housing adjacent to the inlet and forming a vortex in the flow of air flowing into the reactor.

The use of the photocatalyst-using air purifying apparatus according to an embodiment of the present invention increases the contact between the incoming air and the photocatalyst, increases the contact area with the irradiated ultraviolet rays, The ability to purify harmful substances such as odor substances and bacteria in the incoming air can be improved.

1 is a side cross-sectional view of an air purification apparatus using a photocatalyst according to an embodiment of the present invention.
2 is a front cross-sectional view of an air purification apparatus using a photocatalyst according to an embodiment of the present invention.
3 is a front sectional view showing a reactor and a second ultraviolet lamp applied to the embodiment of the present invention.
4 is a partially enlarged perspective view showing an end portion of a reactor and a second ultraviolet lamp according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, the embodiments described below are embodiments suitable for understanding the technical characteristics of the air purifier using the photocatalyst according to the present invention. However, the technical features of the present invention are not limited by the embodiments to which the present invention is applied or explained in the following embodiments, and various modifications are possible within the technical scope of the present invention.

1 and 2, the air purification apparatus 100 using a photocatalyst according to an embodiment of the present invention may include a housing 200 and a reactor 300.

The housing 200 may include an inlet 210 through which air flows and an outlet 230 through which air is discharged. The air containing the malodorous substances or harmful bacteria flows through the inlet 210 and the odorous substance decomposed by the reactor 300 inside the housing 200 flows through the outlet 230 shown in FIG. (Not shown).

In addition, the housing 200 may further include a pre-filter 250, a HEPA filter 260, a deodorization filter 270, and an intake fan 280 in the interior of the housing 200. The prefilter 250 and the HEPA filter 260 may be installed at the inlet 210 side or the front end of the reactor 300. The prefilter 250 may be configured to filter and remove dust or foreign matter from the air, And the HEPA filter 260 can filter out fine harmful bacteria and fine dust in the air.

The deodorization filter 270 may be installed at a front end or a rear end of the reactor 300. The deodorization filter 270 may adsorb harmful substances of the air introduced by the operation of the intake fan 280 to remove the harmful substances from the housing 200 Can be discharged. As the deodorization filter 270, for example, a honeycomb type activated carbon filter may be used, but the present invention is not limited thereto.

However, the arrangement and arrangement of the components provided inside the housing 200 are not limited to the illustrated embodiment, and various modifications are possible.

The reactor 300 may include a photocatalytic tube 310 and a first ultraviolet lamp 330 provided inside the photocatalytic tube 310.

The photocatalytic tube 310 is formed to be long along the longitudinal direction of the housing 200 and has a cylindrical shape with a hollow inside. The photocatalytic tube 310 has a corrugated cross section formed to be bent in a circumferential direction and can be coated with a photocatalyst.

The first ultraviolet lamp 330 may be arranged long in the longitudinal direction inside the photocatalytic tube 310.

Specifically, the photocatalytic tube 310 may be formed in a cylindrical shape, and may be disposed in the longitudinal direction of the housing 200 so that the air introduced through the inlet 210 may be discharged through the outlet 230.

At this time, the air introduced through the inlet 210 flows into the reactor 300, and can contact the photocatalyst coated on the photocatalytic tube 310. The photocatalyst coated on the photocatalytic tube 310 is activated by ultraviolet rays irradiated from the first ultraviolet lamp 330 to perform a photooxidation reaction to decompose organic and harmful substances in the air to remove odor .

Meanwhile, the photocatalytic tube 310 may have a cylindrical shape and may include a corrugated section formed to be bent in the circumferential direction (see FIGS. 3 and 4).

For example, aluminum may be used as the photocatalytic tube 310, but the present invention is not limited thereto. The photocatalytic tube 310 may be made of various materials such as paper, metal, non-ferrous metal, synthetic resin, and rubber. For example, aluminum plate may be folded into a fan shape to form a wrinkle and then coated with a photocatalyst to form a cylindrical shape.

However, the material and manufacturing method of the photocatalytic tube 310 are not limited to the above-described embodiments, and various modifications may be made. In the embodiment shown in Figs. 2 to 4, the shape of the corrugated cross section of the photocatalytic tube 310 is shown as a triangular waveform continuously repeated, but the shape of the corrugated cross section is not limited thereto. It is possible to carry out various deformation such as wave shape or square wave shape.

The surface area of the photocatalytic tube 310 can be widened by bending the photocatalytic tube 310 in a curved section so that the contact between the introduced air and the photocatalyst is increased and the contact area with the irradiated ultraviolet The photo-oxidation reaction efficiency can be increased.

The first ultraviolet lamp 330 may be arranged in the longitudinal direction of the photocatalytic tube 310 so that one side of the first ultraviolet lamp 330 may be arranged in the direction of the inlet 210 and the other side thereof may be arranged in the direction of the outlet 230. Accordingly, by arranging the air in the horizontal direction with respect to the incoming air (see FIG. 4A), it is possible to provide a sufficient reaction time between air and the photocatalyst, thereby enhancing the decomposition efficiency of the toxic substances.

In the air purifying apparatus 100 using the photocatalyst, the photocatalytic tube 310 is formed in a cylindrical shape and includes a corrugated section, and the first ultraviolet lamp 330 is disposed in a horizontal direction The contact between the incoming air and the photocatalyst can be increased and the contact area with the irradiated ultraviolet ray can also be increased. Accordingly, the efficiency of photo-oxidation reaction is increased, so that the ability to purify harmful substances such as odorous substances and bacteria in the incoming air can be improved.

3 and 4, the reactor 300 includes a first coating layer 311 coated on the inner circumferential surface of the photocatalytic tube 310 with a photocatalyst, a second coating layer 311 formed on the outer circumferential surface of the photocatalytic tube 310, And the second ultraviolet lamp 400 is installed between the reactor 300 and the housing 200. The second ultraviolet lamp 400 is disposed between the reactor 300 and the housing 200. The second ultraviolet lamp 400 is disposed between the reactor 300 and the housing 200, Can be installed.

The first ultraviolet lamp 330 irradiates the first coating layer 311 on the inner surface of the photocatalytic tube 310 with ultraviolet rays while the second ultraviolet lamp 400 irradiates the second coating layer 313 on the outer surface of the photocatalytic tube 310. [ ) Can be irradiated with ultraviolet rays. At this time, the second ultraviolet lamps 400 may be disposed in the vicinity of the reactor 300, as in the illustrated embodiment.

The distance between the first ultraviolet lamp 330 and the first coating layer 311 and the distance between the second ultraviolet lamp 400 and the second coating layer 313 may be spaced apart from each other by a predetermined distance. It can be adjusted depending on the concentration and type of harmful substances and bacteria and odor substances contained.

The distance between the first ultraviolet lamp 330 and the first coating layer 311 and the distance between the second ultraviolet lamp 400 and the second coating layer 313 may be different from each other, The effective ultraviolet rays irradiated on the first coating layer 311 and the second coating layer 313 can be increased to further promote photo-oxidation of the photocatalyst.

When the concentration of harmful substances in the air is low and the material is resistant to photooxidation and contains a substance which is not readily decomposed, the distance between the first ultraviolet lamp 330 and the first coating layer 311, The distance between the ultraviolet lamp 400 and the second coating layer 313 can be reduced. Therefore, the distance can be controlled by analyzing harmful substances in the air at a place to be treated.

The air introduced through the inlet 210 may be introduced not only into the interior of the reactor 300 but also to the outside and may contact the second coating layer 313 on the outer surface of the photocatalytic tube 310.

Therefore, since the photo-oxidation reaction takes place both inside and outside the photocatalytic tube 310, the reactor 300 according to an embodiment of the present invention can further accelerate the decomposition of the harmful substances flowing into the reactor 300.

The housing 200 may further include a first photocatalyst carrier 500 provided on an inner circumferential surface of the housing 200.

The first photocatalytic support 500 may be formed in a cylindrical shape and may be fitted to the inner circumferential surface of the housing 200 to accommodate the reactor 300 and the second ultraviolet lamp 400. And a third coating layer 510 coated on the inner circumferential surface with a photocatalyst.

The air introduced through the inlet 210 may be introduced not only into the reactor 300 but also to the outside of the reactor 300. The air introduced into the reactor 300 may be introduced into the third coating layer 510 on the inner circumferential surface of the first photocatalyst carrier 500, .

Accordingly, the photocatalyst coated on the third coating layer 510 and the ultraviolet ray irradiated from the second ultraviolet lamp 400 cause the photooxidation reaction to remove harmful substances from the air introduced into the reactor 300.

In addition, the first photocatalytic carrier 500 is formed in a cylindrical shape and may include a corrugated section formed to be bent in the circumferential direction.

Accordingly, since the surface area of the first photocatalytic support 500 is increased, the contact between the introduced air and the photocatalyst of the first photocatalytic support 500 can be increased, and the reaction efficiency can be increased.

Here, the material and manufacturing method of the first photocatalyst carrier 500 may be applied to the material and manufacturing method of the photocatalytic tube 310 described above, and various other modifications may be made.

1 and 2, the reactors 300 may be arranged in the housing 200 in plural, and the second ultraviolet lamps 400 may be arranged between the neighboring reactors 300 .

The plurality of reactors 300 may be disposed at regular intervals in the housing 200. For example, as shown in the illustrated embodiment, the reactor 300 may be disposed at the center of the housing 200, 300 may be spaced a predetermined distance in the circumferential direction of the reactor 300 disposed at the center.

The second ultraviolet lamp 400 may be disposed in one or more of the adjacent reactors 300 among the plurality of reactors 300.

The air introduced into the reactor 200 is distributed to the inside and the outside of the plurality of reactors 300 and flows into the reactor 300 through the first coating layer 311 and the first ultraviolet lamp 300. [ The harmful substance can be removed by the photo-oxidation reaction of the photocatalyst 330. The air introduced into the reactor 300 is uniformly distributed among the plurality of reactors 300 and the plurality of second ultraviolet lamps 400 and the plurality of second coating layers 313 and the third coating layer 510 are uniformly distributed, The harmful substances can be removed by the photooxidation reaction.

1 and 2, an air cleaning apparatus 100 using a photocatalyst according to an exemplary embodiment of the present invention includes a housing 200, which is long inside the housing 200 in the longitudinal direction, And a cylindrical second photocatalyst carrier 600 coated with a photocatalyst on at least one side of the outer circumferential surface.

A first region 601 in which a plurality of the reactors 300 and the second ultraviolet lamps 400 are arranged is formed inside the second photocatalyst carrier 600 and the outer surface of the second photocatalyst carrier 600 A second region 602 in which a plurality of the reactors 300 and the second ultraviolet lamps 400 are arranged may be formed between the inner circumferential surfaces of the reactor 200.

Specifically, the second photocatalyst carrier 600 is arranged in a cylindrical shape, and the interior of the housing 200 can be divided into a first region 601 and a second region 602, and the first region 601 and the second region 602 can be partitioned. A plurality of reactors 300 and a plurality of second ultraviolet lamps 400 may be disposed in the second region 602.

The second photocatalyst carrier 600 may include at least one of a fourth coating layer 610 coated on the inner circumferential surface thereof with a photocatalyst and a fifth coating layer 630 coated on the outer circumferential surface thereof with a photocatalyst. The second ultraviolet lamp 400 may irradiate ultraviolet rays to the fourth coating layer 610 and the fifth coating layer 630.

The plurality of reactors 300 are arranged along the circumferential direction of the second photocatalyst carrier 600 in at least one of the first region 601 and the second region 602 and the second ultraviolet lamp 400 is disposed in at least one of the first region 601 and the second region 602, May be disposed between the reactor (300). However, the reactor 300 and the second ultraviolet lamp 400 disposed in the first area 601 and the second area 602 are not limited to the above-described arrangement, and various modifications are possible.

Accordingly, the air introduced through the inlet 210 can be uniformly distributed and introduced into the first region 601 and the second region 602 partitioned by the second photocatalyst support 600, and the second photocatalyst support Since the photooxidation reaction occurs both inside and outside of the reactor, the decomposition efficiency of harmful substances in the introduced air is increased.

In addition, the second photocatalytic carrier 600 is formed in a cylindrical shape and may include a corrugated section formed to be bent in the circumferential direction.

Accordingly, since the surface area of the second photocatalyst support 600 is increased, the contact between the introduced air and the photocatalyst of the second photocatalyst support 600 can be increased and the reaction efficiency can be increased.

Here, the material and manufacturing method of the second photocatalyst carrier 600 may be applied to the material and manufacturing method of the photocatalytic tube 310 described above, and various other modifications may be made.

1, the air purifier 100 using the photocatalyst according to the embodiment of the present invention may further include a vortex generating means 700 on the inlet 210 side.

The vortex generating means 700 may form a vortex in the flow of air entering the reactor 300. Here, the vortex generating means 700 may be, for example, a pinwheel or the like. However, the vortex generating means 700 is not limited to the vortex generating means 700, and various modifications are possible as long as the vortex can be formed in the housing 200.

More specifically, most of the introduced air can be brought into contact with the photocatalyst by introducing a vortex into the air introduced through the inlet 210 and deforming the flow of the introduced air into a linear type to a rotational type. Accordingly, the amount of air to be photooxidized in contact with the photocatalyst in the introduced air increases, so that the efficiency of decomposition and removal of harmful substances in the introduced air can be increased.

In the air purifying apparatus using the photocatalyst according to the present invention, the photocatalytic tube is formed in a cylindrical shape and includes a corrugated section, and the first ultraviolet lamp is arranged in the horizontal direction with respect to air, And the contact area with the ultraviolet ray to be irradiated can also be increased. Accordingly, the efficiency of photo-oxidation reaction is increased, so that the ability to purify harmful substances such as odorous substances and bacteria in the incoming air can be improved.

While the invention has been described in connection with what is presently considered to be the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And various modifications may be made without departing from the spirit of the invention.

100: air purifier using photocatalyst 200: housing
280: intake fan 300: reactor
310: photocatalytic tube 311: first coating layer
313: Second coating layer 330: First ultraviolet lamp
400: second ultraviolet lamp 500: first photocatalyst carrier
510: Third coating layer 600: Second photocatalyst carrier
601: first region 602: second region
610: fourth coating layer 630: fifth coating layer
700: vortex generating means

Claims

A housing having an inlet through which air flows and an outlet through which air is discharged; And
A photocatalytic tube coated with a photocatalyst, the photocatalytic tube being elongated along the longitudinal direction of the housing, the photocatalytic tube having a cylindrical shape with a hollow inside and having a corrugated section formed to be bent in a circumferential direction; A first ultraviolet lamp disposed in a longitudinal direction;
Wherein the photocatalyst comprises a photocatalyst.

The method according to claim 1,
The reactor includes a first coating layer coated on the inner circumferential surface of the photocatalytic tube with a photocatalyst and a second coating layer coated on the outer circumferential surface of the photocatalytic tube with a photocatalyst,
Wherein the reactor is installed to be spaced apart from the inner circumferential surface of the housing, and a second ultraviolet lamp is installed between the reactor and the housing.

The connector according to claim 2,
And a first photocatalyst carrier provided on an inner circumferential surface of the housing and containing the reactor and the second ultraviolet lamp and having a third coating layer coated with a photocatalyst on an inner surface thereof.

The method of claim 3,
Wherein the first photocatalyst carrier is formed in a cylindrical shape and has a corrugated section formed to be bent in a circumferential direction.

3. The method of claim 2,
Wherein the plurality of reactors are arranged in the housing,
Wherein the second ultraviolet lamp is disposed between neighboring reactors.

3. The method of claim 2,
And a cylindrical second photocatalyst carrier disposed inside the housing in a longitudinal direction and coated with a photocatalyst on at least one of an inner circumferential surface and an outer circumferential surface,
Wherein a first region in which a plurality of the reactors and the second ultraviolet lamps are arranged is formed in the second photocatalyst carrier, and the first ultraviolet lamp is disposed between the outer peripheral surface of the second photocatalyst carrier and the inner circumferential surface of the housing, And a second region in which a plurality of second regions are arranged.

The method according to claim 6,
Wherein the second photocatalyst carrier is formed in a cylindrical shape and has a corrugated cross section formed to be bent in a circumferential direction.

The method according to claim 6,
Wherein the plurality of reactors are arranged in at least one of the first region and the second region along the circumferential direction of the second photocatalyst carrier and the second ultraviolet lamp is disposed between the reactors, Device.

9. The method according to any one of claims 1 to 8,
And vortex generating means provided inside the housing adjacent to the inlet to form a vortex in the flow of air flowing into the reactor.