KR102148123B1 - Air purification apparatus - Google Patents

Abstract

The present invention relates to a complex filtering module and an air purifier using the same. The complex filtering module comprises: an ultraviolet ray generation unit that irradiates ultraviolet rays to the outside while passing air; a catalytic reaction unit causing a catalytic reaction by transmitting the ultraviolet rays for oxidative decomposition of pollutants in the air passing through the ultraviolet ray generation unit; and a ceramic filter filtering the pollutant decomposed by oxidation and passing the air from which the pollutant has been removed.

Description

Complex filtering module and air purification device using the same {AIR PURIFICATION APPARATUS}

The present invention relates to a composite filtering module and an air purification device using the same, and more particularly, by configuring a photocatalyst part and a ceramic filter part in combination, it is possible to improve air purification performance, and because it is possible to clean pollutants, maintenance cost is reduced. It relates to a composite filtering module capable of saving and an air purification device using the same.

In general, the number of sources of harmful air containing fine dust and pollutants is continuously increasing according to fossil energy consumption.

Fine dust is an organic carbide produced by burning fossil fuels mainly used in factories, automobiles, and homes, and is known to be highly harmful to humans such as lung function failure.

The International Cancer Research Institute (IARC) under the World Health Organization (WHO) classifies volatile organic compounds (VOC), formaldehyde, etc., in addition to fine dust as group 1 carcinogens, and has emerged as a serious social problem as the mortality rate increases due to various diseases. have.

In Korea, special measures are being implemented by the government to manage workplaces, fugitive dust, and automobile exhaust gas to reduce fine dust and harmful air, and air purifiers are operated in homes, offices, and factories to reduce pollution.

Conventional air purifiers use various filters such as a pre-filter, a dehumidifying filter, a HEPA filter, and an activated carbon-based composite filter, and these filters require periodic replacement depending on the degree of contamination.

In addition, since the conventional air purifier has to periodically replace the filter, secondary industrial waste has been generated, and the burden on consumers is increasing as costs for maintenance are incurred.

As a prior document related to the present invention, there is Korean Patent Registration No. 20-0434135 (December 11, 2006), and an air purifier is disclosed in the prior document.

An object of the present invention is to simultaneously remove fine dust and contaminants in the atmosphere by applying a photocatalyst part and a ceramic filter part in combination, and because the ceramic filter part with high durability is used, cleaning and high-pressure surface cleaning are possible and maintenance It is to provide a composite filtering module that can reduce cost and an air purification device using the same.

In addition, an object of the present invention is to monitor the flow rate, pressure, and pollution level in the atmosphere in real time to control the driving timing of the ultraviolet generator and the blower, so that the device is operated only in a preset operating environment, thus extending the life of the device, and It is to provide a composite filtering module capable of reducing consumption and contamination of the ceramic filter unit, and an air purification device using the same.

The composite filtering module according to the present invention includes an ultraviolet ray generator that irradiates ultraviolet rays to the outside while passing air, and a photocatalyst that causes a catalytic reaction by transmitting the ultraviolet rays to oxidatively decompose pollutants in the air that passed through the ultraviolet ray generator, and And a ceramic filter for filtering the oxidized and decomposed contaminants to pass air from which the contaminants have been removed.

In addition, the photocatalyst may be disposed behind the ultraviolet ray generator, and the ceramic filter may be disposed behind the photocatalyst.

In addition, the ceramic filter unit may be disposed behind the ultraviolet ray generator, and the photocatalytic unit may be coated on the surface of the ceramic filter unit.

In addition, the ultraviolet generator may include a body through which a through hole is formed through front and rear, and at least one light source that is coupled to the body and irradiates ultraviolet rays backward when power is supplied from the outside.

In addition, the light source may use either an ultraviolet (UV) LED or an ultraviolet (UV) lamp.

In addition, the light source may have an ultraviolet wavelength range of 315 to 400 nm.

In addition, the photocatalyst may use one or more of a photocatalyst carrier supported with a photocatalyst material and a bead or pellet supported with a photocatalyst material.

In addition, the photocatalytic material is any of titanium dioxide (TiO2), strontium trioxide (SrTiO3), zinc oxide (ZnO), cadmium sulfide (CdS), zirconium oxide (ZrO2), vanadium trioxide (V2O3), tungsten trioxide (WO3). One or a mixture of more than one can be used.

In addition, the ceramic filter unit may use an inorganic material in which microscopic pores are formed in a nano size.

On the other hand, the air purifier according to the present invention includes a housing having an air passage formed therein, an ultraviolet ray generator installed on the air passage and irradiating ultraviolet rays while passing air, and a catalytic reaction by transmitting the ultraviolet rays. , A photocatalyst part for oxidatively decomposing pollutants of the air passing through the ultraviolet ray generator, a ceramic filter part for filtering the oxidatively decomposed pollutants to pass the air from which the pollutants are removed, and installed on the air passage And, it characterized in that it comprises a blower for moving the air to the exhaust port through the intake port of the air passage when driven.

In addition, the photocatalyst may be disposed behind the ultraviolet ray generator, and the ceramic filter may be disposed behind the photocatalyst.

In addition, the ceramic filter unit may be disposed behind the ultraviolet ray generator, and the photocatalytic unit may be coated on the surface of the ceramic filter unit.

In addition, a pretreatment filter unit for filtering air introduced through the intake port may be further disposed in front of the ultraviolet ray generator.

In addition, a control unit for controlling driving may be further electrically connected to the ultraviolet ray generator and the blower, and a sensing unit for sensing external pressure, flow rate, and pollution degree may be further electrically connected to the control unit.

In addition, the control unit stops driving the air blower when the limit range and the reference operation time are preset, and when the pressure and flow rate measured values transmitted from the sensing unit exceed the limit range, and the ultraviolet ray generator is the reference After operating for an operating time, the blower is operated, and when the pressure and flow rate measured values transmitted from the sensing unit exceed the limit range, the ultraviolet ray generator may be additionally operated during the reference operating time.

In addition, the control unit may drive the ultraviolet ray generator and the blower when a contamination detection signal is transmitted from the detection unit.

The present invention can remove fine dust and pollutants in the atmosphere at the same time by applying a photocatalyst part and a ceramic filter part in combination, and because the ceramic filter part with high durability is used, cleaning and high pressure surface cleaning are possible, thereby reducing maintenance costs. It has the effect of saving.

In addition, by monitoring the flow rate, pressure, and pollution level in the atmosphere in real time and controlling the driving timing of the UV generator and the blower, it is operated only in a preset operating environment, so the life of the device can be extended, and unnecessary energy consumption and the ceramic filter unit It has the effect of reducing the degree of contamination.

1 is a combined perspective view showing a complex filtering module according to a first embodiment of the present invention.
2 is an exploded perspective view showing a complex filtering module according to the first embodiment of the present invention.
3 is a side cross-sectional view illustrating a complex filtering module according to a first embodiment of the present invention.
4 is an image showing a state in which the photocatalyst of the composite filtering module according to the first embodiment of the present invention oxidizes contaminants.
5 is a perspective view illustrating an air purifying apparatus according to a second embodiment of the present invention.
6 is a perspective view showing a state in which the housing of the air purifier according to the second embodiment of the present invention is removed.
7 is a side view illustrating an air purifying apparatus according to a second embodiment of the present invention.
8 is a block diagram illustrating a connection relationship between a control unit of an air purifying apparatus according to a second embodiment of the present invention, an ultraviolet ray generator, and a blower.
9 is a block diagram illustrating a process in which an ultraviolet ray generator and a blower part of an air purifying apparatus according to a second embodiment of the present invention are driven according to a pollution level measurement value.

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

Advantages and features of the present invention, and a method of achieving the same will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited by the embodiments disclosed below, but will be implemented in a variety of different forms, only these embodiments are intended to complete the disclosure of the present invention, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims.

In addition, when it is determined that related well-known technologies or the like may obscure the subject matter of the present invention in describing the present invention, detailed descriptions thereof will be omitted.

FIG. 1 is a combined perspective view showing a complex filtering module according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view showing a complex filtering module according to a first embodiment of the present invention, and FIG. It is a side cross-sectional view for showing the complex filtering module according to the first embodiment of the present invention.

4 is an image showing a state in which the photocatalyst of the composite filtering module according to the first embodiment of the present invention oxidizes contaminants, and FIG. 5 is an image for showing an air purification apparatus according to a second embodiment of the present invention. It is a perspective view.

6 is a perspective view showing a state in which the housing of the air purifier according to the second embodiment of the present invention is removed, and FIG. 7 is a side view showing the air purifier according to the second embodiment of the present invention.

FIG. 8 is a block diagram showing a connection relationship between a control unit of an air purifying apparatus according to a second embodiment of the present invention, an ultraviolet ray generator, and a blower, and FIG. 9 is an air purifying apparatus according to a second embodiment of the present invention. It is a block diagram to show the process of driving the ultraviolet ray generator and the air blower according to the pollution level measurement value.

As shown in FIGS. 1 to 5, the composite filtering module according to the first embodiment of the present invention includes an ultraviolet ray generator 100, a photocatalyst 200, and a ceramic filter 300.

First, the ultraviolet ray generator 100 is for irradiating ultraviolet rays (UV) backward while passing air (A), and may be provided as a body 110 and one or more light sources 120.

The main body 110 may be installed in a state that divides the air passage 11 of the air purifier 10 to be described later, and the edge of the main body 110 may be coupled to the air passage 11.

Here, in the main body 110, one or more passage holes 111 may be formed through front and rear so that the air A may pass through the inlet side of the front and the outlet side of the rear.

In addition, a separate air purification filter may be further coupled to the inside of the through hole 111, and various types of air purification filters may be used as necessary.

The light source 120 is for causing a catalytic reaction of the photocatalytic unit 200 to be described later, and the light source 120 irradiates ultraviolet rays (UV) to the rear of the main body 110.

Here, a plurality of light sources 120 may be coupled to the rear surface (air outlet side) of the main body 110, and the arrangement state (number, interval, etc.) of the light sources 120 may be variously applied as necessary.

Further, the light source 120 may use either an ultraviolet (UV) LED or an ultraviolet (UV) lamp, and the light source 120 may have an ultraviolet wavelength region of 315 to 400 nm.

Of course, the ultraviolet (UV) wavelength region of the light source 120 can be applied in various ways as necessary, and the type of the light source 120 is not limited thereto, and can be applied in various ways.

In addition, a circuit board (not shown) on which the light source 120 is mounted may be installed on the rear surface of the main body 110, and a power supply unit (not shown) for supplying power to the light source 120 is electrically Can be more connected.

The photocatalyst unit 200 receives light and causes a chemical reaction (catalytic reaction), and may be disposed behind the ultraviolet ray generator 100 (air outlet side).

Here, the photocatalyst part 200 may be manufactured in a predetermined shape using a photocatalyst material, and the photocatalyst part 200 may be arranged in a state that is spaced apart or coupled to the rear of the ultraviolet ray generator 100.

In addition, the photocatalyst part 200 may use any one of a photocatalyst carrier supported by a photocatalyst material and a bead or pellet supported by a photocatalyst material, but the type of the photocatalyst part 200 is not limited. Does not.

Photocatalytic materials are titanium dioxide in the form of anatase (TiO2, anatase), titanium dioxide in the form of rutile (TiO2, rutile), strontium titanium trioxide (SrTiO3), zinc oxide (ZnO), cadmium sulfide (CdS), zirconium oxide (ZrO2). , Vanadium trioxide (V2O3), tungsten trioxide (WO3) any one or a mixture of one or more may be used.

Such a photocatalytic material is an environmentally friendly material that is semi-permanently used by oxidizing and decomposing pollutants and odors contained in the air (A) to change into water (H2O) and carbon dioxide (CO2) that are harmless to the human body.

For example, when ultraviolet rays (UV) are transmitted from the ultraviolet ray generator 100 described above as a photocatalytic material, electrons and electron holes are formed.

At this time, the electrons (Election) and the electron hole (Electren Hole) move to the surface and combine with oxygen and hydroxyl groups, respectively, to generate hydroxy radicals (-OH) and superoxide anions (O2-) having strong oxidizing power.

Thereafter, the generated hydroxy radical (-OH) and superoxide anion (O2-) adhere to various pollutants contained in air (A) and decompose into water (H2O) and carbon dioxide (CO2).

As such, since most pollutants are organic substances, they can no longer be left as harmful substances when they come into contact with superoxide anions or hydroxyl radicals.

The ceramic filter unit 300 filters pollutants and fine dust that have been oxidatively decomposed by the photocatalyst unit 200 to pass only air from which the pollutants have been removed to the outlet side.

Here, the ceramic filter unit 300 is disposed at the rear (air outlet side) of the photocatalyst unit 200, and the ceramic filter unit 300 may use an inorganic material in which microscopic pores are formed in a nano size.

In addition, the ceramic filter unit 300 may be installed in a state that partitions an air passage such as an air purifier, and the edge of the ceramic filter unit 300 may be detachably coupled to the air passage 11.

In this case, the ceramic filter unit 300 may be installed in a plurality of different inlet and outlet sides, and a coupling portion for coupling the edge of the ceramic filter unit 300 may be provided on the inner circumferential surface of the air passage 11. .

Alternatively, the ceramic filter unit 300 may be disposed behind the above-described ultraviolet ray generator 100, and the above-described photocatalyst 200 may be coated on the surface of the ceramic filter unit 300.

Hereinafter, an air purifying apparatus according to a second embodiment of the present invention will be described with reference to FIGS. 6 to 9.

The air purifying apparatus according to the second embodiment of the present invention includes a housing 10, an ultraviolet ray generator 100, a photocatalyst part 200, a ceramic filter part 300, and a blowing part 400. .

First, the housing 10 has an air passage 11 formed therein, and may be installed with the lower end of the housing 10 seated on the installation surface.

Here, an intake port may be formed in the lower portion of the housing 10 to allow air (A) to be introduced into the air passage 11, and air (A) through the air passage 11 may be provided at the upper portion of the housing 10 An exhaust port may be formed to be discharged to the outside.

The positions of the inlet and the exhaust port are limited for ease of explanation, and the positions of the inlet and the exhaust port can be variously applied as necessary.

First, the ultraviolet generator 100 is for irradiating ultraviolet rays (UV) backward while passing air (A), and may be provided with a body 110 and one or more light sources 120.

The main body 110 may be installed in a state that divides the air passage 11 of the air purifier 10 to be described later, and the edge of the main body 110 may be coupled to the air passage 11.

Here, in the main body 110, one or more passage holes 111 may be formed through front and rear so that the air A may pass through the inlet side of the front and the outlet side of the rear.

In addition, a separate air purification filter may be further coupled to the inside of the through hole 111, and various types of air purification filters may be used as necessary.

The light source 120 is for causing a catalytic reaction of the photocatalytic unit 200 to be described later, and the light source 120 irradiates ultraviolet rays (UV) to the rear of the main body 110.

Here, a plurality of light sources 120 may be coupled to the rear surface (air outlet side) of the main body 110, and the arrangement state (number, interval, etc.) of the light sources 120 may be variously applied as necessary.

Further, the light source 120 may use either an ultraviolet (UV) LED or an ultraviolet (UV) lamp, and the light source 120 may have an ultraviolet wavelength region of 315 to 400 nm.

Of course, the ultraviolet (UV) wavelength region of the light source 120 can be applied in various ways as necessary, and the type of the light source 120 is not limited thereto, and can be applied in various ways.

The photocatalyst unit 200 causes a catalytic reaction by transmitting ultraviolet rays (UV), and the photocatalyst unit 200 may be disposed behind the ultraviolet ray generator 100 (air outlet side).

Here, the photocatalyst part 200 may be manufactured in a predetermined shape using a photocatalyst material, and the photocatalyst part 200 may be arranged in a state that is spaced apart or coupled to the rear of the ultraviolet ray generator 100.

In addition, the photocatalyst part 200 may use any one of a photocatalyst carrier supported by a photocatalyst material and a bead or pellet supported by a photocatalyst material, but the type of the photocatalyst part 200 is not limited. Does not.

Photocatalytic materials include titanium dioxide in the form of anatase (TiO2, anatase), titanium dioxide in the form of rutile (TiO2, rutile), strontium titanium trioxide (SrTiO3), zinc oxide (ZnO), cadmium sulfide (CdS), and zirconium oxide (ZrO2). ), vanadium trioxide (V2O3), tungsten trioxide (WO3), or a mixture of one or more of them may be used.

Such a photocatalytic material is an environmentally friendly material that is semi-permanently used by oxidizing and decomposing pollutants and odors contained in the air (A), converting them into water (H2O) and carbon dioxide, which are harmless to the human body.

For example, when ultraviolet rays (UV) are transmitted from the ultraviolet ray generator 100 described above as a photocatalytic material, electrons and electron holes are formed.

At this time, the electrons (Election) and the electron hole (Electren Hole) move to the surface and combine with oxygen and hydroxyl groups, respectively, to generate hydroxy radicals (-OH) and superoxide anions (O2-) having strong oxidizing power.

Thereafter, the generated hydroxy radical (-OH) and superoxide anion (O2-) adhere to various pollutants contained in air (A) and decompose into water (H2O) and carbon dioxide (CO2).

As described above, most pollutants are organic substances, so if they come into contact with superoxide anions or hydroxyl radicals, they can no longer remain as harmful substances.

The ceramic filter unit 300 filters pollutants that have been oxidatively decomposed by the photocatalyst unit 200 to pass only air from which the pollutants have been removed.

Here, the ceramic filter unit 300 is disposed behind the photocatalyst unit 200 (air outlet side), and may be manufactured using a ceramic material having a plurality of small holes.

In addition, the ceramic filter unit 300 may be installed in a state that divides the air passage 11 of the air purifier 10 to be described later, and the edge of the ceramic filter unit 300 may be coupled to the air passage 11. have.

Alternatively, the ceramic filter unit 300 may be disposed behind the above-described ultraviolet ray generator 100, and the above-described photocatalyst 200 may be coated on the surface of the ceramic filter unit 300.

The ceramic filter unit 300 may be coupled in close contact with the outflow side of the ultraviolet ray generator 100 described above, or may be installed in a state spaced apart from the outflow side of the ultraviolet ray generating unit 100.

The blower 400 is for introducing external air (A) into the air passage 11 through an intake port and outflowing the air (A) through the air passage 11 to the outside through an exhaust port.

For this, the blower 400 may be provided with a blower motor that rotates by power transmitted from the outside, and a rotary blade that is rotatably installed on a drive shaft of the blower motor.

The blower 400 may be installed in the direction of the exhaust port of the air passage 11, but the installation position of the blower 400 is not limited and can be applied in various ways as necessary.

That is, when the rotary blade is rotated by the rotational drive of the blower motor, air (A) is introduced through the inlet, and air (A) moved to the outlet side of the air passage 11 is transferred to the ultraviolet ray generator 100 and the photocatalyst. After passing through the part 200 and the ceramic filter part 300, it may be discharged to the outside through an exhaust port.

Meanwhile, at least one pretreatment filter unit 500 for filtering the air A introduced through the intake port may be further installed in the front (inflow side) of the ultraviolet ray generator 100.

The pretreatment filter unit 500 may include a dust collection filter 510 for filtering dust, and a pre-filter 520 for filtering large dust and hair.

Here, the dust collecting filter 510 may be installed in a state spaced in front (inflow side) of the ultraviolet ray generator 100, and the pre-filter 520 is spaced apart from the front (inflow side) of the dust collecting filter 510 It can be installed in a state to provide a multistage filter structure.

On the other hand, as shown in FIG. 8, a control unit 600 for controlling driving may be further electrically connected to the ultraviolet ray generator 100 and the blower 400.

The control unit 600 is for controlling the driving of the ultraviolet ray generator 100 and the blowing unit 400, and the control unit 600 further includes a sensing unit 610 for sensing external pressure, flow rate, and pollution degree. Can be connected.

Here, the detection unit 610 includes a flow sensor 611 (air flow sensor) for detecting the inflow amount of air (A), a pressure sensor 612, and a harmful gas measurement sensor 613 (gas sensor). It can be provided.

Here, the flow sensor 611, the pressure sensor 612, and the noxious gas measurement sensor 613 may be installed in the air passage 11 of the housing 10.

In addition, a flow sensor 611 and a harmful gas measurement sensor 613 may be installed in the direction of the intake port of the air passage 11, and the flow sensor 611 and the harmful gas measurement sensor 613 are of the pre-filter 520 It can be located on the inlet side.

In addition, a flow sensor 611, a pressure sensor 612, and a harmful gas measurement sensor 613 may be installed in the direction of the intake port of the air passage 11, and the flow sensor 611 and the pressure sensor 612 And, the harmful gas measurement sensor 613 may be located in a state spaced apart from one side of the blower 400.

In addition, the control unit 600 may preset a limit range (pressure and flow rate) and a reference operation time, and the pressure and flow measurement values transmitted from the flow sensor 611 and the pressure sensor 612 of the sensing unit 610 If it exceeds this limit, the drive of the blower 400 is stopped, the ultraviolet ray generator 100 is operated for a reference operation time, and then the blower 400 can be operated.

Thereafter, when the pressure and flow measurement values transmitted from the flow sensor 611 and the pressure sensor 612 of the sensing unit 610 exceed the limit range, the ultraviolet ray generator 100 may be additionally operated during the reference operation time. have.

In addition, the control unit 600 may drive the ultraviolet ray generator 100 and the blower 400 together when a contamination detection signal is transmitted from the harmful gas measurement sensor 613 of the detection unit 610.

That is, only when the harmful gas measurement sensor 613 detects a pollutant, the ultraviolet ray generator 100 and the blower 400 can be driven, and when the detected pressure and flow rate exceed a preset limit range, After stopping the blowing operation, only the ultraviolet ray generator 100 may be driven for a preset time.

As a result, the present invention can simultaneously remove fine dust and pollutants in the atmosphere by applying the photocatalyst unit 200 and the ceramic filter unit 300 in combination, and use the highly durable ceramic filter unit 300 Therefore, cleaning and high-pressure surface cleaning are possible, thereby reducing maintenance costs.

In addition, the present invention monitors the flow rate, pressure, and pollution level in the atmosphere in real time to control the driving timing of the UV generator 100 and the air blower 400, thereby extending the life of the device since it operates only in a preset operating environment. In addition, unnecessary energy consumption and contamination of the ceramic filter can be reduced.

Until now, specific embodiments of the composite filtering module and the air purification apparatus using the same according to the present invention have been described, but it is obvious that various implementation modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention is limited to the described embodiments and should not be transmitted, and should be determined by the claims and equivalents to the claims to be described later.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not limiting, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and All changes or modified forms derived from the equivalent concept should be interpreted as being included in the scope of the present invention.

10: housing 11: air passage
100: ultraviolet generator 110: main body
111: through hole 120: light source
200: photocatalyst part 300: ceramic filter part
400: blower 500: pretreatment filter unit
510: dust collection filter 520: prefilter
600: control unit 610: detection unit
611: flow sensor 612: pressure sensor
613: harmful gas measurement sensor A: air

Claims (16)

delete delete delete delete delete delete delete delete delete A housing with an air passage formed therein, an ultraviolet ray generator installed on the air passage and irradiating ultraviolet rays to the outside while passing air, and air passing through the ultraviolet ray generator by causing a catalytic reaction by transmitting the ultraviolet rays A photocatalyst part for oxidatively decomposing pollutants of the oxidized and decomposed pollutants, a ceramic filter part for filtering the pollutants decomposed by oxidation and passing the air from which the pollutants have been removed, and installed on the air passage. It includes a blower unit for moving air to the exhaust port through the intake port, and a pretreatment filter unit for filtering the air introduced through the intake port is installed in a spaced state in front of the ultraviolet ray generator, and the pretreatment filter unit is in front of the ultraviolet ray generator. A dust collecting filter installed in a state spaced apart from the dust collecting filter, and a pre-filter installed in a state spaced apart in front of the dust collecting filter,
The photocatalyst part is disposed behind the ultraviolet light generating part, the ceramic filter part is disposed behind the photocatalyst part, the ceramic filter part is disposed behind the ultraviolet light generating part, and the photocatalyst part is coated on the surface of the ceramic filter part, and the The ceramic filter unit uses an inorganic material in which microscopic pores are formed in a nano size, and the photocatalyst unit uses one or more of beads and pellets supported by a photocatalyst material, and the photocatalyst material is discretized. Titanium (TiO2), strontium trioxide (SrTiO3), zinc oxide (ZnO), cadmium sulfide (CdS), zirconium dioxide (ZrO2), vanadium trioxide (V2O3), and tungsten trioxide (WO3) Alternatively, one or more mixtures are used, and the ultraviolet ray generator includes a body in which a through hole is formed through front and rear, and at least one light source that is coupled to the body and irradiates ultraviolet rays to the rear when power is supplied from the outside. Uses either a (UV) LED or an ultraviolet (UV) lamp, and the light source has an ultraviolet wavelength range of 315 to 400 nm,
A control unit for controlling driving is further electrically connected to the ultraviolet ray generator and the blower, and a sensing unit for sensing external pressure, flow rate, and pollution level is further electrically connected to the control unit, and the control unit includes a limited range and A reference operation time is preset, and when the pressure and flow rate measured values transmitted from the sensing unit exceed the limit range, the operation of the air blower is stopped, and the ultraviolet ray generator is operated for the reference operation time, and the air blower The unit is operated, and when the pressure and flow rate measured values transmitted from the sensing unit exceed the limit range, the ultraviolet ray generator is additionally operated during the reference operation time, and the control unit transmits a contamination detection signal from the sensing unit. In case of driving the ultraviolet ray generator and the blower,
The sensing unit is provided with a flow sensor, a pressure sensor, and a harmful gas measurement sensor, the flow sensor, the pressure sensor, and the harmful gas measurement sensor are installed in the air passage of the housing, and the flow rate in the direction of the intake port of the air passage A sensor, the pressure sensor, and the harmful gas measurement sensor are installed, and the flow rate sensor and the harmful gas measurement sensor are located at an inlet side of the pre-filter. delete delete delete delete delete delete

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