CN110621353A - Fluid treatment device - Google Patents

Fluid treatment device Download PDF

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Publication number
CN110621353A
CN110621353A CN201880031386.9A CN201880031386A CN110621353A CN 110621353 A CN110621353 A CN 110621353A CN 201880031386 A CN201880031386 A CN 201880031386A CN 110621353 A CN110621353 A CN 110621353A
Authority
CN
China
Prior art keywords
fluid
fluid treatment
light source
partition
region
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201880031386.9A
Other languages
Chinese (zh)
Inventor
金锺晚
金智元
申相哲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seoul Viosys Co Ltd
Original Assignee
Seoul Viosys Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR10-2017-0059333 priority Critical
Priority to KR1020170059333A priority patent/KR20180124569A/en
Application filed by Seoul Viosys Co Ltd filed Critical Seoul Viosys Co Ltd
Priority to PCT/KR2018/005368 priority patent/WO2018208098A1/en
Publication of CN110621353A publication Critical patent/CN110621353A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultra-violet radiation
    • A61L9/205Ultra-violet radiation using a photocatalyst or photosensitiser
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultra-violet radiation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D39/00Filtering material for liquid or gaseous fluids
    • B01D39/14Other self-supporting filtering material ; Other filtering material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters, i.e. particle separators or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86Catalytic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • C02F1/32Treatment of water, waste water, or sewage by irradiation with ultra-violet light
    • C02F1/325Irradiation devices or lamp constructions
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L2209/00Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10Apparatus features
    • A61L2209/12Lighting means
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L2209/00Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10Apparatus features
    • A61L2209/14Filtering means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2239/00Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04Additives and treatments of the filtering material
    • B01D2239/0471Surface coating material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/80Type of catalytic reaction
    • B01D2255/802Photocatalytic

Abstract

The fluid treatment device comprises: a housing including an inflow port, a main body, and an outflow port; a light source unit that is provided in the main body and emits light; a photocatalyst filter provided in the main body and surrounding at least a part of the light source unit; and a partition wall separating the inside of the main body into a first region and a second region together with the photocatalyst filter. The fluid passes through the photocatalyst filter and moves from the first region to the second region, and the width of the main body is larger than the width of the inlet.

Description

Fluid treatment device
Technical Field
The present invention relates to a fluid treatment device, and more particularly, to a device for treating water or air.
Background
Recently, pollution due to industrialization is becoming serious, and people's attention to the environment is increasing, and the trend of healthy life (well-wearing) is also spreading. Accordingly, the demand for clean air or clean water is gradually increasing, and thus various related products of an air cleaner, a water cleaner, and the like, which can provide clean air and clean water, are being developed.
Disclosure of Invention
Technical problem
The invention aims to provide a device for effectively treating fluid such as air or water.
Technical scheme
The invention relates to a device for treating a fluid, comprising: a housing including an inflow port, a main body, and an outflow port; a light source unit that is provided in the main body and emits light; a photocatalyst filter provided in the main body and surrounding at least a part of the light source unit; and a partition wall separating the inside of the main body into a first region and a second region together with the photocatalyst filter. The fluid passes through the photocatalyst filter and moves from the first region to the second region, and the width of the main body is larger than the width of the inlet.
In an embodiment of the present invention, a width of the body may be greater than a width of the outflow port.
In an embodiment of the present invention, the first region is disposed outside the second region, and in another embodiment of the present invention, the first region may be disposed inside the second region.
In an embodiment of the present invention, the partition wall may include: a first partition wall facing the inflow port; and a second partition wall facing the outlet and having at least one opening for allowing the fluid to pass therethrough. At least a part of the first partition wall may be inclined with respect to the inflow port, and the width may be larger as being farther from the inflow port. Further, the width of at least a part of the body may be larger as it is farther from the inflow port. At least a portion of the second partition wall may be inclined with respect to the outflow port, and a width may be larger as being farther from the outflow port. And, a width of at least a portion of the body may be larger as being farther away from the outflow port.
In an embodiment of the present invention, a diameter of the opening portion may be differently set according to a velocity of the fluid. Also, a part of the second partition wall may be provided in a mesh shape.
In an embodiment of the invention, at least a portion of the body may be inclined with respect to the outflow opening, and a width of the at least a portion of the body may be smaller closer to the outflow opening.
In an embodiment of the present invention, the light source unit may include at least one light source emitting light in at least one wavelength range of ultraviolet light and visible light. In an embodiment of the present invention, the light source unit may include at least two light sources emitting ultraviolet rays of different wavelength ranges from each other.
In an embodiment of the present invention, the light source part may include: a substrate; and at least one light source unit including at least one light emitting element mounted on the substrate. In an embodiment of the present invention, the light source unit may be provided in plurality and emit the light in different directions from each other.
In an embodiment of the present invention, the photocatalyst filter may have a closed shape when viewed in cross section. The photocatalyst filter may be any one of circular, elliptical, polygonal, semicircular, and semi-elliptical when viewed in cross section.
In an embodiment of the present invention, the photocatalyst filter may have a surface coated with a photocatalyst material and include a plurality of beads sintered and have pores arranged between the beads sintered. In an embodiment of the invention, the size of the hole may become larger or smaller from the first region to the second region. In an embodiment of the invention, the size of the holes may become larger or smaller along the extending direction of the photocatalyst filter.
In an embodiment of the present invention, the photocatalyst filter may have coating layers coated on a first surface contacting the first region and a second surface contacting the second region, the coating layers coated on the first surface and the second surface having different thicknesses from each other.
In an embodiment of the present invention, a distance between the light source part and the photocatalyst filter may have a value different from a distance between the photocatalyst filter and the case.
In an embodiment of the present invention, the fluid processing apparatus may further include: and an additional filter connected to at least one of the inflow port and the outflow port.
In one embodiment of the invention, the fluid may be air or water.
In an embodiment of the present invention, the fluid processing apparatus may further include: a fan or a pump connected to at least one of the inflow port and the outflow port, and flowing the air or water into the body or discharging the air or water from the body.
In an embodiment of the present invention, the fluid treatment devices may be provided in plurality and connected in parallel, or may be connected in series.
Advantageous effects
The fluid treatment apparatus according to an embodiment of the present invention has a significantly improved fluid treatment effect, such as a sterilization effect, a deodorization effect, a purification effect, etc., compared to the conventional fluid treatment apparatus. Also, the internal structure of the fluid processing device according to an embodiment of the present invention is very simple and can be easily manufactured in a small size.
Drawings
Fig. 1 is a perspective view illustrating a fluid treatment apparatus according to an embodiment of the present invention.
Fig. 2a is a longitudinal sectional view of fig. 1, and fig. 2b is a transverse sectional view of fig. 1.
Fig. 3a is a perspective view illustrating a light source unit according to an embodiment of the present invention, and fig. 3b is a sectional view illustrating a cross-section of the light source of fig. 3 a.
Fig. 4a to 4c are sectional views illustrating a light source part according to an embodiment of the present invention.
Fig. 5a to 5d are sectional views illustrating a photocatalyst filter according to an embodiment of the present invention.
Fig. 6a to 6e illustrate an embodiment of a photocatalyst filter as sectional views illustrating a portion P1 of fig. 2 a.
Fig. 7 is a cross-sectional view illustrating a fluid treatment device according to an embodiment of the present invention.
Fig. 8 is a cross-sectional view of a fluid treatment device according to an embodiment of the present invention.
Fig. 9 is a sectional view showing a fluid handling device according to an embodiment of the present invention.
Fig. 10a and 10b are perspective views illustrating a state where a plurality of fluid processing modules are connected, respectively.
Fig. 11 is a schematic diagram illustrating an air purifier according to an embodiment of the present invention.
Fig. 12 is a schematic view illustrating a water purifier according to an embodiment of the present invention.
Fig. 13 is a block diagram schematically illustrating an internet of things based fluid treatment system.
Fig. 14 is a graph illustrating the results of treating air using the fluid treatment device of fig. 1, and shows acetaldehyde concentration over time.
Fig. 15a and 15b show the time-dependent concentration of trimethylamine and methanethiol for the comparative example and the example of table 1, respectively.
Fig. 16a and 16b are graphs showing the degree of bacterial inactivation of Escherichia coli (e.coli) and Staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 1.
Fig. 17a and 17b are graphs showing the degree of bacterial inactivation of escherichia coli (e.coli) and staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 2.
Fig. 18a and 18b are graphs showing the degree of bacterial inactivation of escherichia coli (e.coli) and staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 3.
Fig. 19a and 19b are graphs illustrating the results of air treatment using the fluid treatment device of fig. 1, showing the concentration of trimethylamine and methylmercaptan, respectively, over time.
Best mode for carrying out the invention
The present invention may take various forms and modifications, and specific embodiments thereof are shown in the drawings and will herein be described in detail. However, the present invention is not intended to be limited to the specific forms disclosed, and all modifications, equivalents, and alternatives included in the spirit and technical scope of the present invention are to be understood as included therein.
In the description of the respective drawings, like reference numerals are used for like components. In the drawings, the size of the structures is shown exaggerated compared to the actual size for clarity of the present invention. The terms first, second, etc. may be used to describe various elements, but the elements should not be limited by the terms. The terms are only used to distinguish one constituent element from other constituent elements. For example, a first component may be named a second component, and similarly, a second component may also be named a first component, without departing from the scope of the invention. Where the context does not clearly imply a contrary, singular references include plural references.
In the present application, terms such as "including" or "having" are used to designate the presence of features, numerals, steps, operations, constituent elements, components or combinations thereof described in the specification, and should not be construed as excluding the presence or addition possibility of one or more other features, numerals, steps, operations, constituent elements, components or combinations thereof in advance.
Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.
Fig. 1 is a perspective view illustrating a fluid treatment apparatus according to an embodiment of the present invention. Fig. 2a is a longitudinal sectional view of fig. 1, and fig. 2b is a transverse sectional view of fig. 1.
One embodiment of the present invention relates to a fluid processing device. In one embodiment, the fluid is a target substance to be treated with the fluid treatment device. In one embodiment of the invention, the fluid may be air or water.
In an embodiment, treating the fluid means performing an operation such as sterilizing, purifying, deodorizing, etc. on the fluid by the fluid treatment device. However, in an embodiment of the present invention, the processing of the fluid is not limited thereto, and may include other operations implemented by a fluid processing apparatus described later.
Referring to fig. 1, 2a and 2b, a fluid treatment apparatus according to an embodiment of the present invention includes: a case 10 forming an external appearance; a light source unit 20 for emitting light; a photocatalyst filter 30 that reacts to light from the light source unit 20; and a partition wall 40 partitioning the inside of the case 10.
The housing 10 forms the appearance of the treatment device and provides an inner space for treating the fluid. The housing 20 is disposed inside the housing 10 and emits light. The photocatalyst filter 30 is disposed between the light source part 20 and the case 10, and includes a photocatalyst reacting with light emitted from the light source part 20. The partition wall 40 is provided inside the case 10 to separate an area inside the case 10 together with the photocatalyst filter 30.
The respective components will be described in detail below with reference to the drawings.
The casing 10 may form an external appearance of the fluid processing apparatus as a constituent element disposed at an outermost side of the fluid processing apparatus. However, according to embodiments, additional housings or components may also be provided on the outside of the housing 10.
The housing 10 includes: an inflow port 11 into which a fluid flows; a body 13 for treating a fluid; and an outlet 15 for discharging the treated fluid.
The inflow port 11 may be formed in a cylinder shape having a flow path formed therein and having one end opened so that the fluid can flow into the body 13. The fluid flowing into the body 13 through the inlet 11 is a target object to be sterilized, purified, deodorized, and the like.
The cross section of the inflow port 11 may have a circular shape or an elliptical shape, but is not limited thereto. In an embodiment of the present invention, the cross section of the inflow port 11 may be provided in various shapes, such as a polygon like a quadrangle. Here, the cross section of the inflow port 11 may be a cross section in a direction along which the inflow port 11 extends or a direction intersecting with a direction in which the flow path is formed.
Although not shown, a separate pipe for supplying the fluid may be provided at the inlet 11, and the pipe may supply the fluid to the inlet 11 through a nozzle connected to the inlet 11. The nozzle can be coupled to the inflow opening 11 in various ways, for example, the nozzle can be screwed to the inflow opening 11.
The main body 13 accommodates components, such as the light source unit 20 and the photocatalyst filter 30, for treating the fluid flowing into the main body through the inlet 11. The light source 20 and the photocatalyst filter 30 will be described later. The body 13 may have a cylinder shape with a hollow space and a shape with both ends in the extending direction closed. In one embodiment of the present invention, the body 13 may be cylindrical in shape. In this case, the cross section intersecting the longitudinal direction of the cylinder is circular in shape. However, the shape of the cross section of the body 13 is not limited thereto, and may be provided in various shapes, for example, an ellipse, a polygon such as a quadrangle, or the like.
The inflow port 11 may be connected to one side of the body 13 to communicate with a space inside the body 13. The outlet 15 may be provided at a position spaced apart from the inlet 11 and connected to and communicated with the body 13. The outlet port 15 may be provided in a cylinder shape having a flow path formed therein and having one end opened so that the fluid can be discharged from the body 13. The fluid discharged from the main body 13 through the outflow port 15 is a subject that has been subjected to sterilization, purification, deodorization, and other processes.
The cross section of the outflow port 15 may have a circular shape or an elliptical shape similarly to the inflow port 11, but is not limited thereto, and may be provided in various shapes, such as a polygon. Here, the cross section of the inlet 11 may be a cross section along a direction extending from the inlet 11 or a direction intersecting a direction forming the flow path.
Although not shown, a separate pipe for discharging the fluid may be provided at the outlet 15, and the pipe may be connected to a nozzle connected to the outlet 15. The nozzle can be coupled to the outflow opening 15 in various ways, for example, it can be screwed.
Therefore, the fluid passes through the inlet 11, the body 13, and the outlet 15 in this order and is discharged to the outside. The inflow port 11, the body 13, and the outflow port 15 may be sequentially arranged to facilitate the flow of fluid. For example, as shown in fig. 1, the inflow port 11, the body 13, and the outflow port 15 may be sequentially arranged in the first direction D1, in which case the inflow port 11 may be disposed on an upper surface of the body 13 and the outflow port 15 may be disposed on a lower surface of the body 13. Although the direction of a portion of the fluid changes within the body 13, the fluid generally moves in a first direction D1.
Here, for convenience of explanation, in fig. 1, the direction in which the inlet 11, the body 13, and the outlet 15 are arranged is referred to as a first direction D1, and two directions of a plane intersecting the first direction D1 are referred to as a second direction D2 and a third direction D3. In the following description, the first direction D1 will be referred to as a lower direction, and a direction opposite to the first direction D1 will be referred to as an upper direction. However, the first direction D1, the second direction D2, the third direction D3, the upper direction, the lower direction, and the like are merely for convenience of explanation, and the actual directions may be set differently, and thus they should be simply understood as relative concepts.
In an embodiment of the present invention, the arrangement directions of the inflow port 11, the body 13, and the outflow port 15 are not limited to the above, and may be set in various forms. For example, the body 13 may extend in the first direction D1, and the inflow port 11 and the outflow port 15 are disposed along a side of the body 13, i.e., in the second direction D2 or the third direction D3. In this case, the moving direction of the fluid from the inflow port 11 to the body 13 or from the body 13 to the outflow port 15 may be a direction other than the first direction D1, and the moving direction of the fluid may be changed.
The light source unit 20 is disposed inside the case 10 and emits light. In an embodiment of the present invention, the light source is disposed inside the main body 13 in the housing 10, i.e., in the space inside the main body 13.
The light emitted from the light source unit 20 may have a plurality of wavelength ranges. The light from the light source unit 20 may be light in a visible light wavelength range, an ultraviolet light wavelength range, or other wavelength ranges.
In an embodiment of the present invention, the wavelength range of the light emitted from the light source 20 may be changed according to a photocatalyst material provided in a photocatalyst filter 30 described later. The wavelength range of the light from the light source 20 can be set according to the reaction wavelength range of the photocatalyst.
The light source unit 20 may emit only a part of the wavelength range from the photocatalyst material. For example, the light source section 20 may emit light in the ultraviolet wavelength range, in which case the light source section 20 may emit light in the wavelength range of about 100 nanometers to about 420 nanometers, and in which light in the wavelength range of about 240 nanometers to about 400 nanometers may be emitted. In an embodiment of the present invention, the light source unit 20 may emit light having a wavelength range between about 250 nm and about 285 nm and/or a wavelength range between about 350 nm and about 280 nm. In an embodiment of the present invention, the light source unit 20 may emit light of 275 nm and/or 365 nm.
In order to emit the light, the light source unit 20 may include at least one light source that emits the light. The light source is not limited to a large extent as long as it emits light in a wavelength range that reacts with the photocatalyst material. For example, when the light source unit 20 emits light in the ultraviolet wavelength range, various light sources emitting ultraviolet rays may be used. As a light source for emitting ultraviolet rays, a Light Emitting Diode (LED) element is typically used. When the light source unit 20 emits light in other wavelength ranges, it is needless to say that other known light sources may be used.
In the case of using a light emitting element as the light source of the light source section 20, the light source may be mounted on the substrate 23. The substrate 23 and the at least one light source may constitute a light source unit.
Fig. 3a is a perspective view illustrating the light source part 20 according to an embodiment of the present invention, and fig. 3b is a sectional view illustrating a cross-section of the light source part 20 of fig. 3 a.
Referring to fig. 3a and 3b, the light source part 20 may include: a light source unit 21 including a substrate 23 and a light source 25; and a protection tube 27 for protecting the light source unit 21.
The substrate 23 may be provided to extend long in a predetermined direction, for example, the first direction D1 (see fig. 1). On the substrate 23, a plurality of light sources 25 may be arranged in a predetermined direction, for example, a first direction.
In the case where the light source unit 21 includes a plurality of light sources 25, the respective light sources 25 may emit light of the same wavelength range or light of wavelength ranges different from each other. For example, in one embodiment, each light source 25 may emit light in the ultraviolet wavelength range. In another embodiment, a portion of the light sources 25 may emit a portion of the ultraviolet wavelength range and the remaining light sources 25 may emit a portion of the remaining wavelength range of the ultraviolet wavelength range. For example, some of the light sources 25 may emit light having a wavelength of 275 nm, and the remaining light sources 25 may emit light having a wavelength of 365 nm.
In the case where the light sources 25 have different wavelength ranges from each other, the light sources 25 may be arranged in various orders. For example, if the light source 25 emitting light in a first wavelength range is referred to as a first light source and the light source emitting light in a second wavelength range different from the first wavelength range is referred to as a second light source 25, the first light source and the second light source may be alternately arranged.
The protective tube 27 protects the substrate 23 and the light source 25. The protection tube 27 is made of a transparent insulating material, and transmits light emitted from the light source 25 while protecting the light source 25 and the substrate 23. The protective tube 27 may be made of various materials as long as it satisfies the above-described functions, and the material is not limited thereto. For example, the protection tube 27 may be made of quartz or a polymer organic material. Here, the wavelength of absorption/transmission of the polymer glass material differs depending on the kind of the monomer, the molding method, and the conditions, and therefore, the wavelength can be selected in consideration of the wavelength emitted from the light source 25. For example, organic polymers such as poly (methyl methacrylate) (PMMA), polyvinyl alcohol (PVA), polypropylene (PP), low density Polyethylene (PE), etc., hardly absorb ultraviolet rays, whereas organic polymers such as polyester (polyester), etc., can absorb ultraviolet rays.
The protection pipe 27 may have a cylindrical shape that is long in the extending direction of the substrate 23, and is provided in a structure that one side is open and the other side is closed. A cover 29 for drawing the wiring to the outside may be provided at the opened portion. The cover 29 may serve as a mounting part so that the light source unit can be stably seated in the protection tube 27, and power wiring connected to the substrate 23 to supply power to the light source 25 may be connected to the outside of the cover 29.
In an embodiment of the present invention, the form of the protection tube 27 is not limited to this, and may have other shapes. For example, the protection tube 27 may have a shape opened at both sides, in which case, covers 29 may be provided at both sides of the protection tube 27. In the case where the covers 29 are formed at both sides, a power supply wiring for supplying power to the light source 25 through at least one of the covers 29 at both sides may be provided.
In an embodiment of the present invention, the light source part 20 may provide light in a direction. As shown in the figure, in the case where the light source 25 is provided on one surface of the substrate 23, light may be emitted mainly in a direction perpendicular to the surface on which the light source 25 is provided. However, the direction of the light emitted from the light source unit 20 can be variously modified.
Fig. 4a to 4c are sectional views illustrating the light source part 20 according to an embodiment of the present invention. Referring to fig. 4a to 4c, the light source part 20 may include at least one substrate 23 and a plurality of light sources 25 mounted on the substrate 23.
Referring first to fig. 4a, a plurality of light sources may be disposed on one substrate 23, and the light sources may be disposed on both sides of the substrate 23, respectively. That is, in the case where the substrate 23 has a front surface and a back surface, the light source may be provided on the front surface or the back surface of the substrate 23. According to the present embodiment, the light source unit 20 emits light in both the front and back directions of the substrate 23.
In the present embodiment, the following is illustrated: the substrate 23 is provided as one, and the light sources 25 are disposed on both sides of the substrate 23, thereby constituting one light source unit. However, the present invention is not limited to this, and a plurality of light source units may be provided. That is, two substrates 23 and two light source units in which light sources are arranged on one surface of the substrate 23 may be prepared, and light may be emitted in both surfaces by attaching the substrates 23 so that the back surfaces thereof face each other.
Referring to fig. 4b and 4c, the substrate 23 of the light source unit may have various shapes in cross section so that light can be emitted in various directions, for example, as much as possible in a radiation type. Since fig. 4b illustrates a case where the substrate 23 has a triangular cross section and fig. 4c illustrates a case where the substrate 23 has a quadrangular cross section, the substrate 23 of fig. 4b and 4c may be provided in the form of a triangular prism or a quadrangular prism as a whole. In this embodiment, the light sources may be arranged on the side surfaces of the respective triangular and quadrangular prisms, and emit light from the respective side surfaces, so that the light can travel in various directions instead of one direction.
In the present embodiment, the substrate 23 may be provided as one substrate 23 having a triangular prism or quadrangular prism shape, but is not limited thereto. For example, a plurality of light source units having a flat plate shape may be assembled in a triangular prism or quadrangular prism shape, thereby forming a triangular prism or quadrangular prism type light source section 20.
In the above-described embodiment, the case where the cross section of the light source unit is linear, triangular, or quadrangular is illustrated, but the light source unit may have a circular or polygonal shape according to the embodiment.
Referring again to fig. 1, 2a and 2b, a photocatalyst filter 30 is provided in the main body 13 of the housing 10.
The photocatalytic filter 30 divides the main body 13 of the housing 10 into a first region 51 and a second region 53 together with a partition wall 40 described later. That is, the photocatalyst filter 30 is interposed between a first region 51 on one side and a second region 53 on the other side. Here, the first region 51 is a region into which the fluid flows from the inlet 11, and the second region 53 is a region separated from the first region 51 and from which the fluid flows out to the outlet 15. As a result, the fluid passes through the photocatalytic filter 30 and moves from the first region 51 toward the second region 53. In the present embodiment, the first region 51 is disposed outside the photocatalyst filter 30, and the second region 53 is disposed inside the photocatalyst filter 30.
The photocatalyst filter 30 has a plurality of holes (not shown) formed therein, and serves as a filter through which a fluid passes. The photocatalyst filter 30 includes a photocatalyst that reacts with light emitted from the light source unit 20 to treat the fluid.
The photocatalyst is a material that catalyzes a reaction by irradiated light. The photocatalyst may react to light in various wavelength ranges depending on the material constituting the photocatalyst. In an embodiment of the present invention, a material that performs a photocatalytic reaction on light in an ultraviolet wavelength range among light in a plurality of wavelength ranges may be used, and this will be described. However, the kind of the photocatalyst is not limited thereto, and other photocatalysts having the same or similar mechanism may be used according to the light emitted from the light source.
The photocatalyst is activated by ultraviolet rays to cause a chemical reaction, and various pollutants, bacteria, and the like in the fluid in contact with the photocatalyst are decomposed by an oxidation-reduction reaction.
When a photocatalyst is exposed to light above band gap energy, a chemical reaction occurs that generates electrons and holes. Therefore, compounds in the fluid, such as water or organic substances, may be decomposed by hydroxyl radicals (Hydroxy Radical) and Superoxide ions (Superoxide Ion) formed by the photocatalytic reaction. Hydroxyl radicals, as substances with very strong oxidizing power, decompose pollutants in the fluid or kill bacteria. Such a photocatalyst material may be titanium oxide (TiO)2) Zinc oxide (ZnO), tin oxide (SnO)2) And the like. In the inventionIn one embodiment, since the rate of recombination of holes and electrons generated on the surface of the photocatalyst is very fast, and thus there is a limit in using the photocatalyst in photochemical reactions, metals such as Pt, Ni, Mn, Ag, W, Cr, Mo, Zn, or oxides thereof may be added to retard the rate of recombination of holes and electrons. In the case where the recombination rate of holes and electrons is delayed, the possibility of contact with the target substance to be oxidized and/or decomposed increases, and as a result, the degree of reaction can be increased. By using the above-mentioned photocatalyst reaction, the fluid can be sterilized, purified, deodorized, and the like. In particular, in the case of sterilization, enzymes in bacterial cells, enzymes acting on the respiratory system, and the like are destroyed to exert a sterilizing or antibacterial effect, and therefore, the propagation of bacteria or mold can be prevented, and toxins released therefrom can be decomposed.
In one embodiment of the present invention, the photocatalyst is used as a catalyst only without changing itself, and thus can be used semi-permanently, and the effect can be semi-permanently maintained as long as the corresponding light is provided.
In one embodiment of the present invention, the photocatalyst filter 30 may be formed by a plurality of sintered beads (not shown). The surface of each bead may be coated with a photocatalyst material, and the photocatalyst filter 30 may be manufactured by sintering the coated bead to have a predetermined shape.
The photocatalyst filter 30 is provided in a shape surrounding the light source unit 20 so that light emitted from the light source unit 20 can reach as large an area as possible. Therefore, the photocatalyst filter 30 surrounds at least a part of the light source unit 20, and the photocatalyst filter 30 may not be provided in a portion where light from the light source unit 20 does not reach.
The photocatalyst filter 30 may have a cylinder shape with openings on both sides and a through-hole. The photocatalyst filter 30 may be extended long in the extending direction of the light source. The inner diameter of the photocatalyst filter 30 is larger than the outer diameter of the protection tube 27 of the light source part 20 so that the light source part 20 can be easily inserted into the inside thereof and spaced apart by a predetermined distance. The light source unit 20 is inserted into the photocatalyst filter 30.
Here, the distance d1 between the case 10 and the photocatalyst filter 30 and the distance d2 between the light source unit 20 and the photocatalyst filter 30 can be variously changed. The amount of light from the light source unit 20, the thickness of the photocatalyst filter 30, the type and flow rate of the fluid, and the like can be set in consideration.
The photocatalyst filter 30 may have substantially the same length as the light source section 20 or a longer length so as to maximally receive the light from the light source section 20. However, the size and shape of the light source unit 20 are not limited as long as the light can sufficiently reach the light source unit.
Fig. 5a to 5d are sectional views illustrating a photocatalyst filter 30 according to an embodiment of the present invention. Referring to fig. 5a to 5d, the photocatalyst filter 30 may have various shapes corresponding to the emitting direction of light. The photocatalyst filter 30 may have a cylindrical shape as shown in fig. 5a, a triangular prism shape as shown in fig. 5b, or a quadrangular prism shape as shown in fig. 5 c. Also, as shown in fig. 5d, it may have a cylindrical shape as a whole and a part thereof may be provided as a flat surface. In other words, the photocatalyst filter 30 may have a closed shape (closed shape) when viewed in cross section, and for example, may be provided in a circular shape, an oval shape, a polygonal shape, a semicircular shape, a semi-oval shape, or the like when viewed in cross section.
The shape of the photocatalyst filter 30 may be selected in consideration of the irradiation direction of light and the flow of fluid. In particular, the inside of the photocatalyst filter 30 may be selected to be a shape that is irradiated with as high a density as possible. For example, when the light source unit 20 emits light in three directions, the light efficiency can be maximized by providing the photocatalyst filter 30 having a triangular prism shape. However, the shape of the light source unit 20 and the shape of the photocatalyst filter 30 are not limited to these, and may be combined by a plurality of numbers.
Fig. 6a to 6e illustrate an embodiment of the photocatalyst filter 30 as sectional views illustrating a portion P1 of fig. 2 a. In fig. 6a to 6e, only a part of the hole 31 is illustrated for convenience of explanation, and the form thereof is also illustrated as a sphere. However, the holes 31 may actually be provided at a higher density than the illustrated degree through which the fluid can pass, and the size or shape of each hole 31 may be different. The following description is not intended to be specific to individual pores 31, and the size or density should be judged primarily by the average trend.
Referring to fig. 6a to 6e, in an embodiment of the present invention, the photocatalyst filter 30 is formed by sintering a plurality of beads such that the pores 31 are located between the sintered beads inside the photocatalyst filter 30. The fluid flows from one side to the other side of the photocatalyst filter 30 through the holes 31. The contact area of the fluid with the photocatalyst filter 30 can be adjusted according to the density of the holes 31. For this reason, the size of the beads forming the photocatalyst filter 30 and the conditions in the sintering process can be adjusted, and as a result, the pores 31 can have various sizes and distributions. That is, the arrangement regarding the size of the holes 31 may be set in various ways in consideration of the kind of fluid, the moving speed of the fluid, the reactivity with the photocatalyst, and the like. For example, in the case where the reactivity of the fluid with the photocatalyst is to be improved in a specific direction, the size and density of the holes 31 may be sequentially reduced in order to increase the residence time of the fluid.
Referring to fig. 6a, the same size of the holes 31 may be arranged at substantially the same density throughout the photocatalyst filter 30. That is, the size or density of the holes 31 in the longitudinal direction (first direction) or the transverse direction (second direction) of the photocatalyst filter 30 may be substantially the same.
Referring to fig. 6b, the holes 31 may be provided in different sizes from each other in the lateral direction of the photocatalyst filter 30. For example, as shown in fig. 6b, the size of the hole 31 may be larger closer to the side of the first region 51, and the size of the hole 31 may be smaller closer to the side of the second region 53. In other words, the size of the hole 31 may be smaller from the first region 51 toward the second region 53. Alternatively, in another embodiment of the present invention, although not shown, the size of the hole 31 may be decreased from the second region 53 toward the first region 51.
Referring to fig. 6c, the holes 31 may be provided in different sizes from each other in the up-down direction of the photocatalyst filter 30. For example, as shown in fig. 6c, the size of the hole 31 may be larger closer to the upper side and the size of the hole 31 may be smaller closer to the lower side. In other words, the size of the holes 31 may become smaller from one side to the other side in the extending direction of the photocatalyst filter 30. In another embodiment of the present invention, conversely, the size of the pores 31 may be larger from the upper side to the lower side in the extending direction of the photocatalyst filter 30.
In an embodiment of the present invention, in order to maximize the contact area and time between the fluid and the photocatalyst material, the photocatalyst material may be additionally coated on at least any one of the outer surface and the inner surface of the photocatalyst filter 30. The photocatalyst filter 30 after coating may be provided to have a thickness to which the fluid can pass through.
Fig. 6d and 6e illustrate the case where the photocatalyst filter 30 includes coating layers 33 made of a photocatalyst material on both sides thereof. In fig. 6d and 6e, if the surface of the photocatalyst filter 30 contacting the first region 51 is referred to as a first surface 30a and the surface contacting the second region 53 is referred to as a second surface 30b, the coating layers 33 are respectively provided on the first surface 30a and the second surface 30 b.
In fig. 6d and 6e, the coating layer 33 is formed on both the first and second surfaces 30a and 30b of the photocatalyst filter 30 using the photocatalyst material, but is not limited thereto, and the coating may be performed on only one of the surfaces. In another embodiment, not shown, the coating may be applied only to a part of the first surface 30a and the second surface 30b, but not to the entire surface.
Referring to fig. 6d, the coating layer 33 may be formed at substantially the same thickness on the first and second sides 30a and 30 b. In contrast, referring to fig. 6e, the coating layer 33 may be formed at the first and second faces 30a and 30b with different thicknesses from each other. In the present embodiment, the case where the coating layer 33 of the first side 30a has a thickness greater than that of the coating layer 33 of the second side 30b is illustrated, but in another embodiment, the coating layer 33 of the first side 30a may have a thickness less than that of the coating layer 33 of the second side 30 b.
The size or density of the pores 31 can be produced in various ways depending on the process conditions such as the size of the beads before sintering and the degree of pressurization at the time of sintering. For example, in the case where sintering is performed after arranging the beads in order of size from large to small, the sizes of the pores 31 between the respective beads may be arranged in a similar form to the beads. The coating layer may be manufactured by coating a photocatalyst material on the surface after the beads are sintered.
Referring again to fig. 1, 2a and 2b, a partition wall 40 is connected to the photocatalyst filter 30, and the partition wall 40 separates the inside of the case 10 into a first region 51 and a second region 53 together with the photocatalyst filter 30. Here, as described above, the first region 51 is a region connected to the inlet 11, and the second region 53 is a region connected to the outlet 15.
The partition wall 40 includes a first partition wall 41 provided on the upper side of the photocatalyst filter 30 and a second partition wall 42 provided on the lower side of the photocatalyst filter 30.
The first partition wall 41 is disposed at a position facing the inflow port 11. The first partition wall 41 is located on the upper side of the photocatalyst filter 30 and corresponds to a cover covering the upper end of the photocatalyst filter 30. Unlike the photocatalyst filter 30, the first partition wall 41 is made of a material that does not allow fluid to pass therethrough. The first partition wall 41 completely covers the upper end of the photocatalyst filter 30, thereby dividing the upper region in the main body 13 into a first region 51 and a second region 53. However, the material of the first partition wall 41 is not limited to this, and may be a material that allows fluid to pass therethrough. For example, the first partition wall 41 may be formed of the same material as the photocatalyst filter 30, and in this case, may extend from the photocatalyst filter 30.
The second partition wall 42 is disposed at a position facing the outflow port 15. The second partition wall 42 is disposed at a lower end of the photocatalyst filter 30 and is connected to the main body 13 of the case 10, thereby supporting the photocatalyst filter 30. And, the second partition wall 42 is disposed between the photocatalyst filter 30 and the main body 13, thereby separating a space between the photocatalyst filter 30 and the main body 13 into a first region 51 and a second region 53. In addition, unlike the photocatalyst filter 30, the second partition wall 42 may be made of a material that does not allow fluid to pass therethrough. However, the material of the second partition wall 42 is not limited to this, and may be a material that allows fluid to pass therethrough. For example, the second partition wall 42 may be formed of the same material as the photocatalyst filter 30, and in this case, may extend from the photocatalyst filter 30.
The second partition wall 42 may be formed in a portion corresponding to the inside of the photocatalyst filter 30 when viewed in plan, and at least one opening 45 through which a fluid passes may be provided in a portion corresponding to the inside of the photocatalyst filter 30. The fluid can be discharged to the outlet 15 through the opening 45. Here, the openings 45 provided in the second partition wall 42 may be provided in various forms and numbers. In the drawing, a plurality of small openings 45 are shown to be formed in the second partition wall 42, but the shape is not limited to a large size as long as the second partition wall 42 can move a fluid, such as by providing one large opening 45 or by providing the second partition wall 42 directly in a mesh shape (mesh shape). In one embodiment of the present invention, the speed of the fluid moving in the second region 53 can be adjusted by adjusting the shape, size, number, and the like of the opening portions 45. In order to reduce the moving speed of the fluid, the size of the opening 45 may be reduced, or the number of openings 45 may be reduced. Conversely, if the moving speed of the fluid is increased, the size of the openings 45 may be increased or the number of the openings 45 may be increased.
Although not shown in detail, the second partition wall 42 may be provided with various fastening portions, support protrusions, and the like, so as to stably support the photocatalyst filter 30 or the light source unit 20.
In the case of using the fluid treatment apparatus described above, the movement path of the fluid is shown by arrows in fig. 2a, and the following description is given.
The fluid flows into the first region 51 in the body 13 through the inflow port 11. Since the first partition wall 41 that is impermeable to the fluid is formed in the portion facing the inlet 11, the fluid moves along the empty portion and further moves to the second region 53 through the photocatalyst filter 30. Since the second partition wall 42 is formed between the housing 10 and the photocatalyst filter 30 to block the space between the first region 51 and the outlet 15, the fluid cannot flow directly from the first region 51 to the outlet 15. The fluid that has passed through the photocatalyst filter 30 and moved to the second region 53 is finally discharged to the outside through the outlet port 15. In the process of the fluid passing through the first and second regions 51 and 53, the treatment of the fluid is performed by the light and the photocatalyst filter 30.
In one embodiment of the present invention, the diameters of the inflow port 11, the body 13, or the outflow port 15 may be different from each other. In particular, the width of the body 13 may have a value greater than the width of the inflow port 11 and the outflow port 15. In other words, when the width of the inlet 11 is referred to as the first width W1, the width of the body 13 is referred to as the second width W2, and the width of the outlet 15 is referred to as the third width W3, the second width W2 has a value larger than the first width W1 and the third width W3, respectively. When the flow path is formed in the order of the inlet 11, the body 13, and the outlet 15, the moving speed of the fluid is inversely proportional to the sectional area in the direction perpendicular to the flow path, and the larger the sectional area in the direction perpendicular to the flow path, the smaller the moving speed of the fluid. In the embodiment of the present invention, the second width W2, which is the width of the body 13, has a value greater than the first width W1 and the third width W3, which are the widths of the inflow port 11 and the outflow port 15, so that the moving speed of the fluid is significantly reduced within the body 13. Here, the first width W1 of the inlet 11 and the third width W3 of the outlet 15 may be the same as or different from each other. The first width W1 and the third width W3 may be determined in consideration of a connection relationship with other components, a required speed of the fluid, and the like.
As described above, the fluid treatment apparatus according to an embodiment of the present invention is manufactured such that the body 13 has a width wider than the inflow port 11 or the outflow port 15, thereby improving the treatment efficiency of the fluid. This is because if the flow velocity of the fluid in the main body 13 is reduced, the time during which the fluid stays in the main body 13 increases, and eventually, the contact area and the contact time with the photocatalyst filter 30 increase. Further, the fluid treatment apparatus according to an embodiment of the present invention is designed to pass through the photocatalyst filter 30 unconditionally after the fluid flows in until the fluid flows out. Therefore, the efficiency of fluid treatment, such as sterilization, deodorization, purification, etc., is significantly improved. In the fluid treatment device according to the related art, the fluid is generally treated by arranging the photocatalyst filter on a path along which the fluid moves, and in this case, a contact area with the photocatalyst filter is very small, a contact time is very short, and thus a treatment effect of the fluid is not good.
The fluid treatment effect of the fluid treatment apparatus of the present invention will be additionally described in the examples.
The fluid processing device according to an embodiment of the present invention is very simple in internal structure and can be easily manufactured in a small size. Further, since the size is small, the present invention can be applied not only to a placement device but also to a portable device.
Detailed Description
In the fluid treatment apparatus according to an embodiment of the present invention, various modifications may be made to the respective components in order to improve the fluid treatment efficiency. In order to avoid redundant description, the following examples are mainly described in terms of differences from the above-described examples, and redundant contents are omitted.
Fig. 7 is a cross-sectional view illustrating a fluid treatment device according to an embodiment of the present invention.
Referring to fig. 7, the main body 13 of the casing 10 and a part of the partition wall 40 in the fluid treatment apparatus according to the present embodiment are formed differently from the above-described embodiments.
In this embodiment, the first partition wall 41 may be inclined with respect to the inlet 11 so that the fluid flowing in from the inlet 11 can smoothly move toward the photocatalyst filter 30. The first partition wall 41 may have a funnel shape in which the width gradually increases in a first direction away from the inflow port 11. The main body 13 of the housing 10 corresponds to the shape of the first partition wall 41. The portion of the main body 13 of the housing 10 corresponding to the first partition wall 41 may have a funnel shape in which the width gradually increases in a direction away from the inflow port 11 (for example, the first direction D1). A portion of the main body 13 of the housing 10 corresponding to the photocatalyst filter 30 is provided in a cylindrical shape.
The first partition wall 41 and the housing 10 are formed in an inclined direction which is not perpendicular to the inlet port 11, so that the fluid flowing in through the inlet port 11 smoothly moves toward the photocatalyst filter 30 along a shortened path compared to the above embodiment. This is because, when the first partition wall 41 is disposed at a position facing the inlet port 11 and inclined, the resistance to the flow of the fluid is reduced as compared with a configuration in which the first partition wall is disposed perpendicular to the inlet port 11. Also, in the case where the cross section of the first partition wall 41 and the case 10 has a substantially right-angled shape, a vortex may occur at the corner portion. Such vortices may disturb the flow of the fluid. Also, the vortex flow occurring at the corner portion causes a part of the fluid to stay continuously at the corner portion, thereby failing to be treated by the photocatalyst filter 30. However, according to an embodiment of the present invention, such a problem can be solved by arranging the first partition wall 41 and a part of the body 13 to be inclined to the inflow port 11.
In the present embodiment, only the case where the first partition wall 41 and the main body 13 corresponding thereto are inclined with respect to the inflow port 11 is illustrated, but the present invention is not limited thereto. For example, the second partition wall 42 may be inclined with respect to the outlet 15 in the same manner, and the portion of the casing 10 corresponding to the second partition wall 42 may be inclined with respect to the outlet 15.
Fig. 8 is a sectional view of a fluid treatment apparatus according to an embodiment of the present invention, and a portion of the casing 10 and the first partition wall 41 are differently formed, similar to fig. 7.
Referring to fig. 8, in the present embodiment, the first partition wall 41 may have a streamline shape with respect to the inlet port 11 so that the fluid flowing in from the inlet port 11 can smoothly move toward the photocatalyst filter 30. Since the streamline shape is a form that minimizes resistance to the fluid, the fluid flowing in through the inlet port 11 moves more smoothly toward the photocatalyst filter 30 without a vortex. In this embodiment, the main body 13 of the housing 10 may also be inclined at least in part with respect to the outlet, and in particular may be provided in a streamlined configuration so as to minimize resistance when drawing the fluid.
As can be seen from fig. 7 and 8, the first partition wall 41, the second partition wall 42, and the main body 13 may be provided in various forms, or may be combined in a form different from that shown in the drawings.
In an embodiment of the present invention, the above embodiment has described the case where the first region 51 is located outside the photocatalyst filter 30 and the second region 53 is located inside the photocatalyst filter 30, but the present invention is not limited thereto.
Fig. 9 shows a fluid processing device according to an embodiment of the present invention, illustrating a case where the first region 51 and the second region 53 are formed differently from the above-described embodiment.
Referring to fig. 9, the first region 51 and the second region 53 are distinguished by the photocatalyst filter 30 and the partition wall 40. The partition wall 40 includes a first partition wall 41 disposed at a position facing the inflow port 11 and a second partition wall 42 disposed at a position facing the outflow port 15.
The first partition wall 41 is positioned above the photocatalyst filter 30, and provides a path so that the fluid passing through the inlet 11 can directly flow into the inside of the photocatalyst filter 30. For this, the first partition wall 41 connects between the upper end of the photocatalyst filter 30 and the main body 13 and separates a space between the outside of the photocatalyst filter 30 and the case 10 into a first region 51 and a second region 53.
The second partition wall 42 is located below the photocatalyst filter 30 and is disposed at a position facing the outflow port 15. The second partition wall 42 includes at least one opening 45 for allowing a fluid to pass therethrough in a portion corresponding to the outside of the photocatalyst filter 30 when viewed in a plan view, and blocks a portion corresponding to the inside of the photocatalyst filter 30. The fluid can be discharged to the outlet 15 through the opening 45.
Observing the moving path of the fluid in this embodiment, the fluid flows into the first region 51 through the inflow port 11. The first region 51 is located inside the photocatalyst filter 30. The fluid that has reached the first region 51 passes through the photocatalytic filter 30 and moves to the second region 53. The second region 53 is located outside the photocatalyst filter 30. The fluid flowing into the second region 53 is discharged to the outside through the outlet 15.
The fluid processing device according to the present embodiment may be combined with at least a part thereof in a range not conflicting with the above-described embodiment, and substantially the same effects as those of the above-described embodiment can be obtained.
In an embodiment of the present invention, although not shown, the fluid treatment device may further include an additional component for guiding the flow of the fluid. For example, when the fluid is a gas such as air, a fan connected to the inlet 11 or the outlet 15 may be provided to guide the flow of the gas. Alternatively, when the fluid is a liquid such as water, a pump connected to the inlet 11 or the outlet 15 may be provided to guide the flow of the liquid. Such a fluid flow guide device may use various devices other than a fan or a pump, and the kind thereof is not limited.
As described above, the fluid processing device according to an embodiment of the present invention can be provided as a single device and applied to a variety of devices. When the fluid treatment apparatus according to the above-described embodiment is referred to as one fluid treatment module, two or more fluid treatment modules may be applied to various apparatuses.
Fig. 10a and 10b are perspective views illustrating connection of a plurality of fluid process modules 100 (two fluid process modules 100 as an example).
Referring to fig. 10a and 10b, the fluid treatment modules 100 according to an embodiment of the present invention may be connected in parallel as shown in fig. 10a, or in series as shown in fig. 10 b.
In fig. 10a, a fluid process module 100 may include a first fluid process module 101 and a second fluid process module 102. The first fluid process module 101 may include a first inlet 111, a first body 131, and a first outlet 151, and the second fluid process module 102 may include a second inlet 112, a second body 132, and a second outlet 152. In the present embodiment, the inflow port 11 connected to the entire fluid processing module 100 is branched and connected to the first inflow port 111 and the second inflow port 112, and the first outflow port 151 and the second outflow port 152 are connected to the outflow port 15 in combination.
According to the present embodiment, the fluid flowing into the inflow port 11 can be processed by any one of the first fluid process module 101 and the second fluid process module 102, and the processing capacity is relatively increased.
In fig. 10b, the fluid process module 100 may include a first fluid process module 101 and a second fluid process module 102, and the inflow port 11, the first fluid process module 101, the second fluid process module 102, and the outflow port 15 may be connected in sequence. That is, in this case, the first outlet port 151 of the first fluid process module 101 is connected to the second inlet port 112 of the second fluid process module 102.
According to the present embodiment, the fluid flowing into the inflow port 11 may be processed twice by passing through the first fluid processing module 101 and the second fluid processing module 102 in sequence. Thus, the fluid treatment effect is increased.
In the above-described embodiment, the case where two fluid treatment modules are connected in series or in parallel is illustrated, but the present invention is not limited thereto, and a configuration in which a greater number of fluid treatment modules are combined in series and in parallel may be adopted.
The fluid treatment module 100 according to an embodiment of the present invention described above may be applied when treating various fluids (e.g., air or water). For example, the present invention can be used as purifiers, sterilizers, deodorants, and the like used in homes, factories, restaurants, plumbing facilities, laboratories, medical facilities, and the like. Further, the present invention can be used as a purifier, a sterilizer, a deodorant, etc. to be mounted on various devices (for example, home electric appliances such as a refrigerator, a humidifier, an air cleaner, a coffee maker, etc.). Hereinafter, a case where the fluid treatment module 100 is used in an air purifier and a water purifier will be described as an example.
Fig. 11 is a schematic diagram illustrating an air purifier according to an embodiment of the present invention.
Referring to fig. 11, an air purifier according to an embodiment of the present invention may include: a fan 63 for flowing air; a filter module 60 filtering the inflow air; the fluid treatment module 100 sterilizes/purifies air filtered at the filtering module 60.
Fan 63 is used to move air into filtration module 60 and fluid treatment module 100. Here, other devices such as a pump may be used to allow air to flow. Also, the position of the fan 63 may be changed within a limit that enables air movement.
The filter module 60 is used for filtering foreign materials in the air, and may include at least one filter 61 therein. As the filter 61, various types of filters such as a carbon filter made of activated carbon and a porous filter made of a woven fabric can be used.
Fluid treatment module 100 is connected to filtration module 60 by connection 7765. The air filtered by the filter module 60 flows into the fluid treatment module 100 through the inlet 11 of the fluid treatment module 100, is treated in the main body 13, and is then discharged through the outlet 15.
The fluid treatment module 100 treats the air from the filter module 60. Here, the processing of the fluid processing module 100 may be various operations such as sterilization, purification, deodorization, and the like, as described above.
Fig. 12 is a schematic view illustrating a water purifier according to an embodiment of the present invention.
Referring to fig. 12, a water purifier according to an embodiment of the present invention includes: a filter 61 for filtering the water once; a water storage tank 67 for storing water passing through the filter 61; the fluid treatment module 100 is connected to the reservoir 67.
The filter 61 serves to remove foreign substances from the supplied water. The water purifier may further include a pump (not shown) connected to the filter 61, and water may be supplied to the filter 61 by the pump. The filter 61 may be provided in various numbers such as a filter for removing relatively large impurities, a filter for removing heavy metals, bacteria, and the like, and the filter 61 may be omitted when the water is to be sufficiently purified by the fluid treatment apparatus.
The water from which foreign matter and the like are removed by the filter 61 moves to the water storage tank 67 through the connection portion 7765. At least one water storage tank 67 may be provided, or a plurality of water storage tanks 67 may be provided. Here, in the case where water to be purified is directly supplied to the fluid treatment module 100, the water storage tank 67 may be omitted.
The fluid treatment module 100 treats the water from the reservoir 67. Here, the processing performed in the fluid treatment module 100 may be various operations such as sterilization, purification, deodorization, and the like as described above. As shown, the fluid treatment module 100 may be additionally equipped with a water extraction valve or the like so that a user can take water immediately.
As described above, according to the fluid treatment module 100 of the present invention, it is possible to realize an apparatus having a very simple structure and a high air or water treatment effect.
When an apparatus including one or more fluid process modules 100 according to an embodiment of the present invention is referred to as a fluid process apparatus, the fluid process apparatus may be implemented as an internet-of-things-based fluid process system.
Fig. 13 is a block diagram schematically illustrating an internet of things based fluid treatment system.
The internet of things based fluid treatment system according to the present invention is configured such that at least one fluid treatment module 100 is selectively turned on/off according to whether a user uses it, and the operating condition of the light source part 20, etc. are monitored in real time.
Referring to fig. 13, the fluid processing system according to an embodiment of the present invention includes a central processing unit 70, a user terminal 79, and a fluid processing apparatus 1000.
The central processing portion 70 may store and manage status information on whether the fluid treatment device 1000 is operating, whether it is malfunctioning, operating time, and the like, and transmit a control signal to the control portion 75 of the fluid treatment device 1000.
The user terminal 79 may transmit a control instruction (e.g., fluid processing device on/off) or an information request instruction, etc., regarding the fluid processing device 1000, which is remotely selected by the user, to the central processing portion 70, and receive information from the central processing portion 70.
The fluid treatment apparatus 1000 includes: a fluid treatment module 100 for treating a fluid; a sensing unit 71 for sensing the amount of light from the light source unit 20 in the fluid treatment module 100; a communication unit 73 that receives various signals from the user terminal 79 and the central processing unit 70 and transmits various signals from the fluid processing device to the user terminal 79 and the central processing unit 70; and a control unit 75 for controlling the fluid processing module 100, the sensing unit 71, and the communication unit 73.
The fluid processing module 100 can be turned on/off according to a signal from the control section 75, and control the flow rate of processing and the like.
The sensing part 71 may sense the degree of a contaminant in the fluid or the like, or the amount of light from the light source part 20 in the fluid processing module 100, or the presence or absence of a user or the like.
The communication unit 73 can receive signals from the user terminal 79 and the central processing unit 70 or transmit signals to the user terminal 79 and the central processing unit 70 via the wired/wireless communication network 77.
The control section 75 may control on/off of the fluid process module 100 according to a command from the central processing section 70. For example, when the user turns on the fluid treatment device using the external terminal 79, the control unit 75 receives a signal via the wired/wireless communication network 77 and the communication unit 73, and turns on the fluid treatment module 100 based on the signal. Alternatively, in the case where the light amount of the light source section 20 sensed from the sensing section 71 is excessively small, the light source replacement signal may be transmitted to the user terminal 79 through the communication section 73 by using the wired/wireless communication network 77. Alternatively, in the event that the concentration of contaminant material within the fluid (e.g., within the air) sensed from sensing portion 71 is too high, fluid treatment module 100 may be turned on and the flow rate may be maximally controlled. Alternatively, a signal is received from sensing portion 71 as to whether a user is present, and in the absence of a user, fluid treatment module 100 may be turned off and on.
The internet-of-things based fluid treatment system as described above can implement selective control of driving the fluid treatment device or the like to the extent of meeting the situation, if necessary, by user sensing or the like. Therefore, power consumption can be minimized, and it is easy to confirm the current operation state or whether the light source is abnormal or not, etc. Therefore, efficient management and management can be achieved.
In an embodiment of the present invention, the results of experiments performed on the embodiment and the comparative example using the fluid treatment apparatus are as follows.
(1) Experimental example 1
FIG. 14 is a graph illustrating the results of treating air with the fluid treatment device of FIG. 1, showing acetaldehyde concentration over time.
In fig. 14, the portion marked with an X symbol represents the acetaldehyde concentration in the state where the fluid processing apparatus is not used, and the portion marked with a square shape represents the relative concentration with time when the initial acetaldehyde concentration of 10ppm is set to 1.0 in the state where the fluid processing apparatus of fig. 1 is used.
The experiment is carried out at 1m3The cubic stainless steel chamber of (2) was filled, and the flow rate of air flowing into the fluid treatment apparatus was 0.33cm m. At this time, the light sources used were ultraviolet light emitting elements in the 365nm wavelength range, and three were used. Light source and photocatalyst filterThe distance between the two layers is 20mm, and the average ultraviolet light quantity applied to the photocatalyst filter is 20.0mW/cm2
Referring to fig. 14, in the case of using the fluid treatment apparatus according to an embodiment of the present invention, about 50% or more of acetaldehyde is removed in 90 minutes, and about 70% or more of acetaldehyde is removed in about 180 minutes.
(2) Experimental example 2
Table 1 below shows experimental conditions of the fluid treatment apparatus according to the prior invention and the fluid treatment apparatus according to the embodiment of the present invention. In the following examples 1 to 3, the portions described below were manufactured differently, and the conditions with respect to the remaining portions not mentioned were all kept the same. In the comparative example, the fluid treatment device of the related art was manufactured in such a manner that the fluid moved along the side surface of the photocatalyst filter, rather than the fluid passed through the photocatalyst filter.
[ Table 1]
1) Deodorization experiment
Fig. 15a and 15b show the concentration over time of trimethylamine (trimethyamine) and methylmercaptan (methylmercaptan) for comparative example and example of table 1, respectively. Trimethylamine and methanethiol are typical substances that generate offensive odors, and a high removal effect of trimethylamine and methanethiol means that the deodorizing and/or odor eliminating effect is very high.
In fig. 15a and 15b, Δ is a curve of example 1, o is a curve of example 2, o is a curve of example 3, and □ is a curve of a comparative example.
In FIGS. 15a and 15b, the initial concentration of trimethylamine and methylmercaptan was 2.5ppm, respectively, and the experiment was performed in a 422L volume chamber. The temperature in the chamber is maintained between 4 and 7 degrees celsius.
In fig. 15a, the effect of removing trimethylamine is very small with the passage of time in the comparative example. In particular, only trimethylamine 9.0% relative to trimethylamine was removed over two hours.
However, in examples 1 to 3, the concentration of trimethylamine significantly decreased with the passage of time. In particular, for example 3, about 79.1% of trimethylamine was removed in two hours, and examples 1 and 2 also removed 52.65% and 46.0% of trimethylamine, respectively.
Accordingly, the removal effect of trimethylamine partially differs depending on the wavelength range of the light source, the number of light sources, the flow rate, and the like, but the embodiment shows a significant removal effect of trimethylamine as a whole.
In fig. 15b, the effect of removing methyl mercaptan is very small even with the passage of time for the comparative example. In particular, only 3.1% of trimethylamine relative to 3.1% was removed over two hours.
However, for examples 1 to 3, the concentration of methyl mercaptan decreased significantly with the passage of time. In particular, for example 3, about 64.1% of the methyl mercaptan was removed in two hours, and examples 1 and 2 also removed 42.7% and 40.9% of the methyl mercaptan, respectively.
Accordingly, the removal effect of methyl mercaptan partially differs depending on the wavelength range of the light source, the number of light sources, the flow rate, and the like, but the embodiments generally exhibit a significant methyl mercaptan removal effect.
In particular, the experimental results of fig. 15a and 15b were performed at substantially the same temperature as the temperature inside the refrigerator, and it can be seen that the fluid treatment device according to an embodiment of the present invention can be used as a deodorant for the refrigerator.
2) Sterilization test 1
Fig. 16a and 16b are graphs showing the degree of bacterial inactivation of Escherichia coli (e.coli) and staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 1. The graphs of fig. 16a and 16b are illustrated on a logarithmic scale.
In FIGS. 16a and 16b, the initial concentration of E.coli was 7.8X 107~5.2×108CFU/mL, initial concentration of Staphylococcus aureus was 2.3X 109~2.5×109CFU/mL, experiment atIn a 400L volume acrylic chamber. Here, CFU means a colony forming unit (colony forming unit).
Referring to fig. 16a and 16b, it was confirmed that escherichia coli and staphylococcus aureus were inactivated at a rapid rate with the passage of time. In particular, Escherichia coli is inactivated by 99.999% or more in 60 minutes, and Staphylococcus aureus is inactivated by 99% or more in 60 minutes.
3) Sterilization test 2
Fig. 17a and 17b are graphs showing the degree of bacterial inactivation of escherichia coli (e.coli) and staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 2. The graphs of fig. 17a and 17b are illustrated on a logarithmic scale.
In FIGS. 17a and 17b, the initial concentration of E.coli was 3.2X 108~5.9×108CFU/mL, initial concentration of 1.1X 10 Staphylococcus aureus9~2.4×109CFU/mL, experiments were performed in a 400L volume acrylic chamber.
Referring to fig. 17a and 17b, it was confirmed that escherichia coli and staphylococcus aureus were inactivated at a rapid rate with the passage of time. In particular, Escherichia coli is inactivated by 99.999% or more within 40 minutes, and Staphylococcus aureus is inactivated by 99% or more within 60 minutes.
4) Sterilization test 3
Fig. 18a and 18b are graphs showing the degree of bacterial inactivation of escherichia coli (e.coli) and staphylococcus aureus (s.aureus) in the air, respectively, using the fluid treatment apparatus of example 3. The graphs of fig. 18a and 18b are illustrated on a logarithmic scale.
In FIGS. 18a and 18b, the initial concentration of E.coli was 8.5X 107~4.4×108CFU/mL, initial concentration of Staphylococcus aureus of 7.2X 107~4.4×109CFU/mL, experiments were performed in 400L volume chamber.
Referring to fig. 18a and 18b, it was confirmed that escherichia coli and staphylococcus aureus were inactivated at a rapid rate with the passage of time. In particular, Escherichia coli was inactivated by 99.99999% or more in 20 minutes, and Staphylococcus aureus was inactivated by 99.9% or so in 60 minutes.
(3) Experimental example 3
Fig. 19a and 19b are graphs illustrating the results of air treatment using the fluid treatment device of fig. 1, showing the concentration of trimethylamine and methylmercaptan, respectively, over time. The part marked with the X symbol indicates the concentration of trimethylamine and methylmercaptan in a state where the fluid processing apparatus is not used.
In the fluid treatment apparatus used in this experiment, the light source used three light emitting elements in the 365nm wavelength range. The thickness of the photocatalyst filter is 10 mm. In FIGS. 19a and 19b, the initial concentration of trimethylamine and methylmercaptan was 2.5ppm, respectively, and the experiment was performed in a 422L volume chamber. The temperature in the chamber is maintained between 4 and 7 degrees celsius.
In fig. 19a, the trimethylamine concentration significantly decreases with time in the case of using the fluid treatment apparatus of the present invention. In particular, after one hour had elapsed, 74.6% of the trimethylamine was removed, and after two hours up to 80.7% of the trimethylamine was removed.
Referring to fig. 19b, after one hour had elapsed, about 58.2% of the methyl mercaptan was removed, and after two hours about 65.2% of the methyl mercaptan was removed.
Here, the experimental results of fig. 19a and 19b are performed at substantially the same temperature as the temperature inside the refrigerator, and it can be seen that the fluid treatment device according to an embodiment of the present invention can be used as a deodorant for the refrigerator.
As can be confirmed from the above experimental examples, the fluid treatment apparatus according to an embodiment of the present invention has a remarkable deodorizing effect, sterilizing effect, and the like.
Although the present invention has been described above with reference to the preferred embodiments thereof, it is to be understood that various modifications and alterations can be made by those skilled in the art or those having ordinary knowledge in the art without departing from the spirit and scope of the present invention as set forth in the claims.
Therefore, the technical scope of the present invention should be determined only by the scope of the claims, and not limited to the contents described in the detailed description of the specification.
Industrial applicability
The present invention can be used for a fluid treatment apparatus for treating water or air.

Claims (26)

1. A fluid treatment apparatus as an apparatus for treating a fluid, comprising:
a housing including an inflow port, a main body, and an outflow port;
a light source unit that is provided in the main body and emits light;
a photocatalyst filter provided in the main body and surrounding at least a part of the light source unit; and
a partition wall separating the inside of the main body into a first region and a second region together with the photocatalyst filter,
wherein the fluid passes through the photocatalyst filter and moves from the first region to the second region,
the width of the body is greater than the width of the inflow port.
2. The fluid treatment device of claim 1,
the width of the body is greater than the width of the outflow opening.
3. The fluid treatment device of claim 1,
the first region is disposed outside the second region.
4. The fluid treatment device of claim 3,
the partition wall includes: a first partition wall facing the inflow port; and a second partition wall facing the outlet and having at least one opening for allowing the fluid to pass therethrough.
5. The fluid treatment device of claim 4,
at least a part of the first partition is inclined with respect to the inflow port.
6. The fluid treatment device of claim 5,
the width of the first partition wall is larger as the first partition wall is farther from the inlet.
7. The fluid treatment device of claim 5,
the width of at least a portion of the body is greater the further away from the inflow port.
8. The fluid treatment device of claim 4,
at least a part of the second partition wall is inclined with respect to the outflow port.
9. The fluid treatment device of claim 8,
the width of the second partition wall is larger as the second partition wall is farther from the outflow port.
10. The fluid treatment device of claim 9,
at least a portion of the body is inclined relative to the outflow opening.
11. The fluid treatment device of claim 10,
the width of at least a portion of the body is smaller closer to the outflow opening.
12. The fluid treatment device of claim 4,
the diameter of the opening portion is set differently according to the velocity of the fluid.
13. The fluid treatment device of claim 12,
a part of the second partition wall is provided in a mesh shape.
14. The fluid treatment device of claim 1,
the first region is disposed inside the second region.
15. The fluid treatment device of claim 1,
the light source unit includes at least one light source that emits light in at least one wavelength range of ultraviolet light and visible light.
16. The fluid treatment device of claim 15,
the light source unit includes at least two light sources that emit ultraviolet rays having different wavelength ranges from each other.
17. The fluid treatment device of claim 15,
the light source unit includes a plurality of light source units including at least one light emitting element, and the light source units emit the light in different directions from each other.
18. The fluid treatment device of claim 1,
the photocatalyst filter has a closed shape when viewed in cross section.
19. The fluid treatment device of claim 1,
the surface of the photocatalyst filter is coated with a photocatalyst material and includes a plurality of sintered beads, and has pores arranged between the sintered beads.
20. The fluid treatment device of claim 19,
the size of the hole becomes larger or smaller from the first region toward the second region.
21. The fluid treatment device of claim 19,
the size of the pores becomes larger or smaller along the extending direction of the photocatalyst filter.
22. The fluid treatment device of claim 19,
the photocatalyst filter is provided with coating layers coated on a first surface connected with the first area and a second surface connected with the second area, and the coating layers coated on the first surface and the second surface have different thicknesses.
23. The fluid treatment device of claim 1,
the distance between the light source unit and the photocatalyst filter has a value different from the distance between the photocatalyst filter and the case.
24. The fluid treatment device of claim 1, further comprising:
and an additional filter connected to at least one of the inflow port and the outflow port.
25. The fluid treatment device of claim 1, further comprising:
and a fan connected to at least one of the inflow port and the outflow port, and configured to flow the fluid into the body or discharge the fluid from the body.
26. The fluid treatment device of claim 1, further comprising:
and a pump connected to at least one of the inlet port and the outlet port, and configured to flow the fluid into the body or discharge the fluid from the body.
CN201880031386.9A 2017-05-12 2018-05-10 Fluid treatment device Pending CN110621353A (en)

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