KR20230061624A - Photocatalyst based multi use facility air filter - Google Patents

Abstract

The present invention relates to a photocatalyst-based air filtering device for a multi-use facility for improving indoor air quality in a multi-use facility. a chamber forming a first movement path of air and a second movement path of clean air in which germs and viruses are sterilized; a pre-filter installed on the first movement path to filter fine dust included in the polluted air; an SOP filter installed on the second movement path, decomposing pollutants in the polluted air passing through the pre-filter to generate oxygen and simultaneously generating active species, and having a photocatalyst installed therein; a light source installed at an end of an inner wall provided in the chamber to emit light to divide the first movement path and the second movement path; And the light of the light source incident on one side facing the light source is reflected by the pre-filter and the photocatalyst, respectively, to remove fine dust filtered through the pre-filter and remove bacteria and viruses from pollutants decomposed through the SOP filter. and a reflector for generating a photochemical reaction for sterilization, wherein the reflector is configured to form a third movement path on the chamber so that the contaminated air passing through the pre-filter moves to the SOP filter. Can be attached to an exterior wall.

Description

Photocatalyst based multi use facility air filter

The present invention relates to a photocatalyst-based air filtering device for a multi-use facility, and more particularly, to a photocatalyst-based air filter device for a multi-use facility for improving indoor air quality in a multi-use facility.

In general, multi-use facilities are used as underground stations, underground shopping malls, waiting rooms at railway stations or passenger car terminals, libraries, large-scale stores, movie theaters, exhibition facilities, medical institutions, daycare centers, indoor parking lots, indoor sports facilities, indoor performance halls, and business facilities. As a large-scale building facility, the importance of indoor air quality is constantly emphasized because a large number of people stay or work in a large interior space.

Accordingly, through active regulations such as the Indoor Air Quality Management Act, continuous management of air quality measurement in multi-use facilities and improvement of indoor air quality based on the result is being carried out.

As such, in order to improve indoor air quality in multi-use facilities, various pollutants contained in indoor air must be removed and purified air must be supplied back to the room, and air purifiers such as dust collectors are essential.

The dust collector is a device for collecting and removing fine particles of solid or liquid floating in a gas, and a filter type for filtering foreign substances such as dust in the air using a filter and removing dust in the air by attaching it to an electrode while passing through an ionized space. However, there is a problem that the sterilization efficiency of bacteria and viruses contained in the air is poor.

When these viruses in the air are inhaled together with air by users using multi-use facilities, there is a problem that can pose a threat to the body, such as causing an infectious disease, so it is necessary to be sterilized.

Republic of Korea Patent Registration No. 10-1793695 (registered on October 30, 2017) Republic of Korea Patent Registration No. 10-1010559 (registered on January 18, 2011)

Therefore, the present invention has been made to solve the above problems, and in order to improve indoor air quality in multi-use facilities, pollutants are decomposed to generate oxygen and at the same time, SOP (Solid Oxygen Purifier, super It has a solid oxygen) filter and sterilizes bacteria and viruses present in pollutants decomposed through a photochemical reaction of a photocatalyst seated inside the SOP filter. .

In addition, an object of the present invention is to provide a photocatalyst-based multi-use facility air filter capable of arranging a light source in a chamber without space limitation by including a reflector for reflecting light from a light source to a photocatalyst for generating a photochemical reaction. .

However, the technical problems to be achieved in the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clear to those skilled in the art from the description below. You will be able to understand.

In order to achieve the above object, a photocatalyst-based multi-use facility air filtration device according to an embodiment of the present invention provides a first movement path of contaminated air in a multi-use facility and a second path of bacteria and virus-sterilized clean air. A chamber forming a movement path; a pre-filter installed on the first movement path to filter fine dust included in the polluted air; an SOP filter installed on the second movement path, decomposing pollutants in the polluted air passing through the pre-filter to generate oxygen and simultaneously generating active species, and having a photocatalyst installed therein; a light source installed at an end of an inner wall provided in the chamber to emit light to divide the first movement path and the second movement path; And the light of the light source incident on one side facing the light source is reflected by the pre-filter and the photocatalyst, respectively, to remove fine dust filtered through the pre-filter and remove bacteria and viruses from pollutants decomposed through the SOP filter. and a reflector for generating a photochemical reaction for sterilization, wherein the reflector is configured to form a third movement path on the chamber so that contaminated air passing through the pre-filter moves to the SOP filter. Can be attached to an exterior wall.

In the present invention, the SOP filter decomposes contaminants to generate oxygen and sterilizes bacteria and viruses present in the decomposed contaminants through a photochemical reaction between active species generated at the same time and a photocatalyst seated inside the SOP filter. It has the effect of improving the indoor air quality of multi-use facilities.

In addition, according to the present invention, a light source may be disposed in a chamber without space limitations by including a reflector for reflecting the light of the light source toward the photocatalyst so that the light of the light source is incident on the photocatalyst.

However, the effects obtainable in the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description below. You will be able to.

1 is a conceptual diagram of an air filtering device for multi-use facilities based on a photocatalyst according to an embodiment of the present invention.
2 is a block diagram showing components additionally provided in a photocatalyst-based multi-use facility air filtration device according to an embodiment of the present invention.
3 is a conceptual diagram of a multi-use facility air filtering device based on a photocatalyst according to another embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. However, since the description of the present invention is only an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiment can be changed in various ways and can have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, the scope of the present invention should not be construed as being limited thereto.

The meaning of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from another, and the scope of rights should not be limited by these terms. For example, a first element may be termed a second element, and similarly, a second element may be termed a first element. It should be understood that when an element is referred to as “connected” to another element, it may be directly connected to the other element, but other elements may exist in the middle. On the other hand, when an element is referred to as being “directly connected” to another element, it should be understood that no intervening elements exist. Meanwhile, other expressions describing the relationship between components, such as “between” and “immediately between” or “adjacent to” and “directly adjacent to” should be interpreted similarly.

Singular expressions should be understood to include plural expressions unless the context clearly dictates otherwise, and terms such as “comprise” or “having” refer to a described feature, number, step, operation, component, part, or It should be understood that it is intended to indicate that a combination exists, and does not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless defined otherwise. Terms defined in commonly used dictionaries should be interpreted as consistent with meanings in the context of related art, and cannot be interpreted as having ideal or excessively formal meanings unless explicitly defined in the present invention.

The photocatalyst-based multi-use facility air filter 10 (hereinafter referred to as 'air filter 10') according to an embodiment of the present invention is used inside a multi-use facility to improve indoor air quality in the multi-use facility. A chamber 100 is provided in which contaminated air is sucked in and clean air is discharged from which bacteria and viruses contained in fine dust and pollutants are removed. The structure of the chamber 100 is as follows.

1 is a conceptual diagram of an air filtering device for multi-use facilities based on a photocatalyst according to an embodiment of the present invention.

Referring to FIG. 1 , the chamber 100 is formed with a plurality of suction ports 101 and 102 for intake of polluted air and an outlet 103 for discharge of clean air.

The plurality of intake ports 101 and 102 are provided in plurality to suck polluted air from a plurality of indoor spaces in a multi-use facility, and may be added according to the number of indoor spaces in the multi-use facility.

The outlet 103 is provided in the chamber 100 to discharge clean air from which bacteria and viruses contained in fine dust and contaminants are all removed to an indoor space of a multi-use facility.

On the other hand, the chamber 100 is provided with an inner wall 104, a first outer wall 105, and a second outer wall 106 to partition the moving path of contaminated air and clean air, and in the present invention, the chamber The movement path formed inside (100) is as follows.

The chamber 100 has a first movement path 100a through which contaminated air of a multi-use facility is moved through the inner wall 104 and the first outer wall 105 for forming the plurality of inlets 101 and 102. and through the inner wall 104 and the second outer wall 106 for forming the outlet 103, a second movement path 100b through which clean air is moved is formed.

The air filtering device 10 includes a pre-filter 200 for filtering fine dust contained in polluted air of multi-use facilities and an SOP for decomposing pollutants contained in polluted air passing through the pre-filter 200. A filter 300 is provided.

The pre-filter 200 is installed on the first moving path 100a and is made of a material of PP (Polypropylene) or PE (Polyethylene) for multi-use facilities that are inhaled through the plurality of intake ports 101 and 102. It filters fine dust contained in polluted air.

The pre-filter 200 may be coated with titanium dioxide (TiO ₂ ) to improve antibacterial efficiency of bacteria and viruses contained in contaminated air.

The SOP filter 300 is installed on the second movement path 100b after decomposing alkali metals such as calcium oxide (CaO) and magnesium oxide (MgO) and then manufactured through heat and pressure, and the pre-filter ( 200) to generate oxygen by decomposing pollutants in the polluted air that has passed through, and at the same time, active species composed of hydrogen peroxide (H ₂ O ₂ ) and/or radicals (-OH) are generated.

In the SOP filter 300, solid-type super solid oxygen purifiers, in which contaminant decomposition and oxygen are generated at the same time, are placed inside in a form spaced apart at regular intervals, and the solid-type super solid oxygen A photocatalyst is seated in each spaced space.

The photocatalyst of the SOP filter 300 is seated inside the solid super solid oxygen, and generates a photochemical reaction when light is incident to sterilize bacteria and viruses of contaminants decomposed through the SOP filter 300. let it

The air filtering device 10 is provided with a light source 400 for irradiating light for generating a photochemical reaction in the photocatalyst of the SOP 300 .

The light source 400 is installed at the end of the inner wall 104, receives electric energy from a battery provided in the air filter 10, and generates light for the photocatalyst of the SOP filter 300 to generate a photochemical reaction. investigate

In the present invention, the light irradiated by the light source 400 may be ultraviolet (UV) with a wavelength of 10 to 400 nm, and is incident on the photocatalyst of the pre-filter 200 and the SOP filter 300, respectively, and the pre-filter It is possible to sterilize bacteria and viruses of contaminants decomposed through the removal of fine dust filtered in 200 and the SOP filter 300.

Meanwhile, some of the light emitted from the light source 400 may be radiated not toward the pre-filter 200 and the SOP filter 300 according to the light diffusion pattern of the light source 400 .

The air filtering device 10 is provided with a reflector 500 for injecting light not directed toward the pre-filter 200 and the SOP filter 300 to the pre-filter 200 and the SOP filter 300. .

The reflector 500 transmits the light of the light source 400 incident on one side facing the light source 400, that is, the light not directed to the pre-filter 200 and the SOP filter 300, to the pre-filter 200. ) and the photocatalyst of the SOP filter 300, respectively, through which the fine dust filtered through the pre-filter 200 is removed and bacteria and viruses of contaminants decomposed through the SOP filter 300 are sterilized. Let it be.

When the reflector 500 is attached to each end of the first and second outer walls 105 and 106, the polluted air passing through the pre-filter 200 moves to the SOP filter 300. 3 A movement path 100c is formed on the chamber 100 .

In addition, the reflector 500 is not attached to and fixed to each end of the first and second outer walls 105 and 106, but can be detached from each end of the first and second outer walls 105 and 106, This is to clean the contaminants of the polluted air attached to one side while remaining on the third movement path 100c after passing through the pre-filter 200 .

In addition, the reflector 500 has a reflective surface 510 having a concave-convex pattern by cutting one side of the reflector 500 so that light from the light source 400 is reflected to the photocatalyst of the pre-filter 200 and the SOP filter 300, respectively. One side of the reflective surface 510 is curved so that light reflected through the reflective surface 510 is incident on the pre-filter 200 and the photocatalyst of the SOP filter 300, respectively.

Furthermore, the reflective surface 510 causes light to enter the photocatalyst of the pre-filter 200 and the SOP filter 300 by regular or irregular reflection of the light from the light source 400 .

Meanwhile, in the chamber 100, some of the light reflected through the reflective surface 510 is not directed toward the photocatalyst of the pre-filter 200 and the SOP filter 300, and the first outer wall 105 and the second outer wall ( 106), an additional reflector for reflecting the light to the photocatalyst of the pre-filter 200 and the SOP filter 300 is disposed so that the light of the light source 400 is transmitted through the pre-filter 200 ) and the efficiency incident on the SOP filter 300 is maximized.

In addition, in the chamber 100, the reflector 500 is attached to the first and second outer walls 105 and 106 to block polluted air sucked into the inside from being discharged to multi-use facilities before being purified into clean air. It is preferable that the intake of contaminated air is performed only when the third moving path 100c is formed.

Hereinafter, components of the air filtering device 10 for intake of contaminated air when the third movement path 100c is formed on the chamber 100 will be described in detail.

2 is a block diagram showing components additionally provided in a photocatalyst-based multi-use facility air filtration device according to an embodiment of the present invention.

Referring to FIG. 2 , the air filtering device 10 includes a sensor 600 and a controller 700 to control intake of contaminated air.

The sensor 600 is provided on one side of the first outer wall 105 or the second outer wall 106 or the other side of the reflector 500 so that the end of the reflector 500 is connected to the first outer wall 105. It detects whether the third movement path 100c is formed on the chamber 100 through the attachment of the reflector 500 while detecting whether it is attached to the end of the second outer wall 106. The detection method is as follows. .

Both ends of the reflector 500 to be attached to each end of the first outer wall 105 and the second outer wall 106 and each end of the first and second outer walls 105 and 106 are provided with the sensor 600. An electric circuit to transmit an electric signal may be configured, respectively, and the electric circuit transmits an electric signal when both ends of the reflector 500 are attached to each end of the first and second outer walls 105 and 106. can possibly be connected.

Meanwhile, the sensor 600 receives an electrical signal through an electric circuit when both ends of the reflector 600 are attached to each end of the first and second outer walls 105 and 106, and receives the electrical signal. Whether or not the third movement path 100c is formed on the chamber 100 is detected through whether or not the third moving path 100c is formed on the chamber 100 .

Furthermore, the sensor 600 generates a detection signal when the third movement path 100c is formed on the chamber 100 and transmits it to the controller 700 .

When receiving a detection signal from the sensor 600, the controller 700 determines that the third movement path 100c is formed on the chamber 100 through the detection signal, and according to the determination result, the The plurality of intake ports 101 and 102 connected to the first movement path 100a are opened so that contaminated air from multi-use facilities is sucked into the first movement path 100a.

In addition, when the controller 700 determines that the third movement path 100c is generated, the plurality of suction ports 101 and 102 connected to the first movement path 100a are opened to prevent contamination of multi-use facilities. Air is sucked into the first movement path 100a.

On the other hand, the air filtering device 10 is not shown in the drawing, but is connected to the control unit 700 so that the user can check the determination result of the control unit 700, and emits light (light) of a preset color according to the determination result. An LED generating a is provided, and a light irradiation method of the LED is as follows.

In the present invention, the LED turns on green or blue light when the controller 700 determines that the third movement path 100 is formed on the chamber 100, and otherwise, the controller 700 When it determines that both ends of the reflector 500 are not accurately attached to each end of the first and second outer walls 105 and 106 because it does not receive the detection signal, a red light is turned on or off.

In the present invention, the lighting of the LED means continuously irradiating light of a predetermined color until the determination result of the controller 700 is changed, and the blinking of the LED is performed at a certain period (eg, 2 seconds). or 3 seconds) means a process of repeating light irradiation (turning on) and turning off.

Hereinafter, the air filtering device 10 according to another embodiment of the present invention will be described in detail, focusing on differences from the air filtering device 10 according to the embodiment of the present invention.

3 is a conceptual diagram of a multi-use facility air filtering device based on a photocatalyst according to another embodiment of the present invention.

Referring to FIG. 3 , in the air filtering device 10 of another embodiment, a pair of first rails 800 for position change and cleaning of the pre-filter 200 and position change and washing of the SOP filter 300 are provided. A pair of second rails 900 for are provided.

At this time, it is necessary to wash the pre-filter 200 and the SOP filter 300. As the pre-filter 200 filters fine dust whenever polluted air is introduced, the filtering efficiency of fine dust gradually decreases. This is because the decomposition efficiency of pollutants gradually decreases as the SOP filter 300 decomposes (or filters) pollutants in the polluted air.

The pair of first rails 800 are installed on the inner wall 104 and the first outer wall 105 constituting the first movement path 100a, and the position of the pre-filter 200 is changed and cleaned. The pre-filter 200 is installed to be movable on the first movement path 100a.

At this time, the pre-filter 200 moves on the first movement path 100a through the pair of first rails 800, and the contaminated air sucked through the suction port 102, which is one of the plurality of suction ports, It is preferable that the fine dust moves only to a position where it does not pass through the pre-filter 200.

The pair of second rails 900 are installed on the inner wall 104 and the second outer wall 106 constituting the second movement path 100b, and the position of the SOP filter 300 is changed and cleaned. The SOP filter 300 is installed so as to be movable on the second movement path 100b.

On the other hand, the pair of first and second rails 800 and 900 are connected to operating means such as a lever exposed to the outside of the air filtering device 10, and through the operating means, the pre-filter 200 ) and the SOP filter 300 are changed, or remotely controlled through a terminal provided by the user of the air filtering device 100 so that the positions of the pre-filter 200 and the SOP filter 300 are changed. do.

Furthermore, although the pair of first and second rails 800 and 900 are illustrated as being provided only on parts of the inner wall 104 and the first and second outer walls 105 and 106 in FIG. 3 , in reality, the It is preferable that it extends to the movement limit of the pre-filter 200 and the SOP filter 300.

Detailed descriptions of the preferred embodiments of the present invention disclosed as described above are provided to enable those skilled in the art to implement and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will understand that the present invention can be variously modified and changed without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a manner of combining with each other. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the technical spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as limiting in all respects and should be considered as illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention. The invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that do not have an explicit citation relationship in the claims may be combined to form an embodiment or may be included as new claims by amendment after filing.

10: air filter, 100: chamber,
100a: first movement path, 100b: second movement path,
100c: third movement path, 101, 102: inlet,
103: outlet, 104: inner wall,
105: first outer wall, 106: second outer wall,
200: pre-filter, 300: SOP filter,
400: light source, 500: reflector,
510: reflective surface, 600: sensor,
700: control unit, 800: first rail,
900: second rail.

Claims (8)

In the air filtering device of multi-use facilities,
The air filter device,
a chamber forming a first movement path of contaminated air of multi-use facilities and a second movement path of clean air in which bacteria and viruses are sterilized;
a pre-filter installed on the first movement path to filter fine dust included in the polluted air;
an SOP filter installed on the second movement path, decomposing pollutants in the polluted air passing through the pre-filter to generate oxygen and simultaneously generating active species, and having a photocatalyst installed therein;
a light source installed at an end of an inner wall provided in the chamber to emit light to divide the first movement path and the second movement path; and
The light of the light source incident on one side facing the light source is reflected to the pre-filter and the photocatalyst, respectively, to remove fine dust filtered through the pre-filter and to sterilize bacteria and viruses of pollutants decomposed through the SOP filter. Including; a reflector for causing a photochemical reaction to occur;
The reflector is
A photocatalyst-based multi-use facility air filtering device, characterized in that attached to an outer wall of the chamber so that a third movement path is formed on the chamber for allowing the contaminated air passing through the pre-filter to move to the SOP filter. According to claim 1,
The SOP filter,
It decomposes pollutants in the polluted air moving along the third movement path to generate oxygen, and at the same time generates active species composed of hydrogen peroxide and / or radicals, and harmful components of bacteria and viruses included in the decomposed pollutants. Photocatalyst-based multi-use facility air filter, characterized in that for removal. According to claim 1,
The reflector is
Photocatalyst-based multi-use facility air filtering device, characterized in that detached from the outer wall of the chamber in order to wash the contaminants of the polluted air remaining on the third movement path and attached to one side. According to claim 1,
The reflector is
Photocatalyst-based multi-use facility air filtering device, characterized in that the surface of one side is cut to have a concave-convex pattern reflection surface so that the light of the light source is reflected to the pre-filter and the photocatalyst, respectively. According to claim 4,
The reflector is
Photocatalyst-based multi-use facility air filtering device, characterized in that one side is formed to be curved so that the light reflected through the reflective surface is incident on the pre-filter and the photocatalyst, respectively. According to claim 1,
The air filter device,
a sensor attached to an outer wall of the chamber to detect whether the third movement path is formed on the chamber; and
A detection signal is received from the sensor, and when it is determined through the detection signal that the third movement path is formed in the chamber, the intake port connected to the first movement path is opened so that contaminated air enters the first movement path. A photocatalyst-based multi-use facility air filtering device comprising a; According to claim 1,
The pre-filter,
It is movably installed on a pair of rails disposed on the inner and outer walls of the chamber constituting the first movement path, so that it is easy to change the position on the first movement path and replace for cleaning. Multi-use facility air filtration system. According to claim 1,
The SOP filter,
A photocatalyst based photocatalyst characterized in that it is movably installed on a pair of rails disposed on the inner and outer walls of the chamber constituting the second movement path and is easy to change position on the second movement path and replace for cleaning. Multi-use facility air filtration system.

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