WO2018020920A1 - Appareil de purification d'air de type mince et système de purification d'air intérieur - Google Patents

Appareil de purification d'air de type mince et système de purification d'air intérieur Download PDF

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Publication number
WO2018020920A1
WO2018020920A1 PCT/JP2017/023110 JP2017023110W WO2018020920A1 WO 2018020920 A1 WO2018020920 A1 WO 2018020920A1 JP 2017023110 W JP2017023110 W JP 2017023110W WO 2018020920 A1 WO2018020920 A1 WO 2018020920A1
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WO
WIPO (PCT)
Prior art keywords
air purification
activated carbon
light emitting
thin air
photocatalyst
Prior art date
Application number
PCT/JP2017/023110
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English (en)
Japanese (ja)
Inventor
勇次 今井
Original Assignee
株式会社Ｎａｎｏ Ｗａｖｅ
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
Application filed by 株式会社Ｎａｎｏ Ｗａｖｅ filed Critical 株式会社Ｎａｎｏ Ｗａｖｅ
Priority to JP2018529447A priority Critical patent/JP6963550B2/ja
Publication of WO2018020920A1 publication Critical patent/WO2018020920A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/003—Ventilation in combination with air cleaning
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation

Definitions

  • the present invention relates to a thin air purification apparatus using a photocatalyst and an indoor air purification system equipped with the same.
  • Photocatalysts such as titanium oxide (TiO 2 ) are activated when irradiated with ultraviolet rays to produce a strong redox effect, and harmful compounds and pollutants such as nitrogen oxides (NO X ) and sulfur oxides (SO X ) Demonstrates the action of effectively decomposing etc.
  • an ultraviolet lamp is housed in a housing having an intake port and an exhaust port, and a photocatalyst is disposed within an irradiation range of ultraviolet rays generated by the ultraviolet lamp. (See Patent Document 1).
  • Patent Document 1 has a problem that the acetaldehyde removal performance is insufficient unless a large number of fluorescent tube black lights are used when exciting titanium oxide. Then, the structure which provides the light emission part containing the some LED element which irradiates an ultraviolet light with respect to a photocatalyst member is proposed (refer patent document 2).
  • the present invention has been made in view of the above circumstances, and the object of the present invention is a thin air purification device capable of dramatically improving quietness and ensuring the degree of freedom of installation location of the device, and It is providing the indoor air purification system provided with this.
  • a thin air purification apparatus comprising: a frame body that grips at least a part of an outer edge of the light emitting unit and the activated carbon member in a state in which the photocatalytic member, the light emitting unit, and the activated carbon member are arranged in a thickness direction.
  • the light emitting unit may be arranged separately on one side of the photocatalytic member, and the activated carbon member may be arranged in contact with the other side of the photocatalytic member.
  • the photocatalyst member may have a portion that does not overlap the light emitting portion in plan view.
  • the thickness direction dimension may be 30 mm or less.
  • the thin air purification apparatus is provided in an indoor partition, and may be arranged in the order of the light emitting unit, the photocatalytic member, and the activated carbon member from the indoor side.
  • an indoor air purification system Comprising: The thin air purification apparatus of any one of Claim 1 to 5 provided in the said room, and the air circulation apparatus which circulates the said indoor air An indoor air purification system is provided.
  • the flow velocity of air in the vicinity of the thin air purification device may be 0.2 m / s or more and 2.0 m / s or less.
  • FIG. 1 is a schematic side cross-sectional view of a thin air purification apparatus showing an embodiment of the present invention.
  • FIG. 2 is a schematic front view of the thin air purification device.
  • FIG. 3 is a rear view of the light emitting unit.
  • FIG. 4 is a graph showing the removal performance of acetaldehyde in Comparative Example 1.
  • FIG. 5 is a graph showing the removal performance of acetaldehyde in Comparative Example 2.
  • FIG. 6 is a graph showing the removal performance of acetaldehyde in the examples.
  • FIG. 7 is a schematic side cross-sectional view of a thin air purification apparatus showing a modification.
  • FIG. 1 is a schematic side sectional view of a thin air purification device
  • FIG. 2 is a schematic front view of the thin air purification device
  • FIG. 3 is a rear view of a light emitting unit.
  • the thin air purification device 1 is formed in a substantially plate shape, a plate-like photocatalyst member 2 containing titanium oxide (TiO 2 ), and a plate that irradiates the photocatalyst member 2 with ultraviolet light.
  • the thickness of the thin air purification apparatus 1 is arbitrary, it can be 30 mm or less, for example.
  • the thin air purification device 1 is used for air purification in a room such as a house or a vehicle, and is suitably provided on a wall or a door that is a partition part inside or outside the house or vehicle.
  • the installation state of the thin air purification device 1 on the wall, door, or the like is arbitrary.
  • the thin air purification device 1 may be placed on a flat surface such as the wall, door, or embedded in the wall, door, etc. Good.
  • FIG. 1 the state mounted on the flat surface 10 of a partition part is shown.
  • the light emitting unit 3, the photocatalytic member 2, and the activated carbon filter 4 are arranged in this order from the indoor side, and a gap 6 is formed between the light emitting unit 3 and the photocatalytic member 2.
  • the frame 5 detachably holds at least a part of the outer edges of the photocatalyst member 2, the light emitting unit 3, and the activated carbon filter 4.
  • the outer edges of the photocatalyst member 2, the light emitting unit 3, and the activated carbon filter 4 are gripped in the circumferential direction.
  • the frame 5 includes a support portion 5 a that enters between the photocatalyst member 2 and the light emitting portion 3 from the outer edge side, a first pressing portion 5 b that presses the outer edge side on the indoor side of the light emitting portion 3, and activated carbon. And a second pressing portion 5c for pressing the outer edge side of the filter 4 opposite to the room.
  • the second pressing portion 5 c comes into contact with the flat surface 10 when the thin air purification device 1 is placed on the flat surface 10, and creates a space 9 between the flat surface 10 and the activated carbon filter 4.
  • the frame 5 has a hole that communicates the photocatalyst member 2, the light emitting unit 3, and the activated carbon filter 4 side with the outside of the apparatus.
  • the material of the frame 5 is arbitrary, but may be a metal material such as aluminum.
  • the plate-like photocatalyst member 2 is made of a plastic material such as polyester, for example, and has a three-dimensional network structure inside.
  • the surface of the plastic material is coated with titanium oxide particles.
  • wavy unevenness is formed on one surface and the other surface of the photocatalyst member 2.
  • Titanium oxide can be excited by light having a wavelength of 410 nm or less, and when it is in an excited state, the surrounding air is purified. If titanium oxide is contained, a liquid such as a ceramic material or water can be used as the photocatalyst member 2.
  • the photocatalytic member 2 has a thickness of 5 mm to 30 mm.
  • the light emitting unit 3 is a plate-like mounting board on which a plurality of LED elements 7 (see FIG. 3) are mounted.
  • the light emitting unit 3 is disposed separately from the one surface side of the photocatalyst member 2 so that the surface on which the LED element 7 is mounted faces the photocatalyst member 2.
  • the light emitting unit 3 is formed in a rectangular shape, and the LED elements 7 are arranged in alignment in the vertical direction and the horizontal direction.
  • the photocatalytic member 2 is configured such that a part of the photocatalytic member 2 does not overlap the light emitting portion 3 in a plan view of the plate-like photocatalytic member 2 and the light emitting portion 3.
  • each long side 3 a of the light emitting unit 3 is formed inside the side of the photocatalyst member 2 in plan view.
  • the air in the room is easy to flow into the gap 6 and the air in the gap 6 is easy to flow out into the room.
  • the photocatalyst member 2 and the activated carbon filter 4 have air permeability, and the air flowing into the apparatus from the room can pass through the photocatalyst member 2 and the activated carbon filter 4 to reach the space 9.
  • the circuit pattern of the mounting substrate has an anode electrode 3 b and a cathode electrode 3 c, and supplies power to each LED element 7.
  • the light emitting unit 3 may be AC driven or DC driven.
  • the light emitting unit 3 has a thickness of 3 mm to 15 mm.
  • the gap between the light emitting part 3 and the photocatalyst member 2 is 3 mm to 15 mm.
  • Each LED element 7 has, for example, an InGaN-based light emitting layer and emits ultraviolet light.
  • the peak wavelength of each LED element 7 is 405 nm.
  • the peak wavelength of each LED element 7 is not limited to this, For example, it can also be 365 nm.
  • each LED element 7 is a face-up type, and is electrically connected to the circuit pattern by wires.
  • the activated carbon filter 4 is disposed in contact with the other surface side of the photocatalytic member 2.
  • the activated carbon filter 4 is made of a porous material containing oxygen, hydrogen, calcium, etc. in addition to most of the carbon, and adsorbs many materials in its fine holes. Since the surface has a nonpolar property, it is possible to selectively adsorb granular organic substances smaller than the pores and obtain a deodorizing action.
  • the thickness of the activated carbon filter 4 is 5 mm to 30 mm.
  • the air in the room where the thin air purification device 1 is provided circulates, and an air flow having a predetermined wind speed is generated in the vicinity of the thin air purification device 1.
  • the indoor air purification system using the thin air purification device 1 has an air circulation device such as an air conditioner, a circulator, and a fan that circulates indoor air.
  • the wind speed in the vicinity of the thin air purification device 1 is preferably set to 0.2 m / s or more.
  • the wind speed in the casing need not be 3.0 m / s or more, and the wind speed in the vicinity of the thin air purification apparatus 1 is 2.0 m / s or less. If so, it has been confirmed that sufficient air purification performance is exhibited.
  • the thin air purification apparatus 1 configured as described above, after the light that has flowed into the frame 5 from inside the room is purified by the photocatalyst member 2 by irradiating the photocatalyst member 2 with ultraviolet light from the light emitting unit 3. , Can flow out into the room again.
  • the air is purified by the activated carbon filter 4 in addition to the photocatalytic member 2, the acetaldehyde removal performance can be greatly improved.
  • no fan since no fan is provided, it is possible to dramatically improve the quietness and to secure the degree of freedom of the installation location of the apparatus.
  • the activated carbon filter 4 since the activated carbon filter 4 is disposed on the opposite side of the room, the air entering the activated carbon filter 4 can be purified in advance by the photocatalyst member 2. Therefore, deterioration of the activated carbon filter 4 can be suppressed, and the purification performance of the activated carbon filter 4 can be maintained over a long period of time. Moreover, since the excitation light irradiated from the light emission part 3 is interrupted
  • FIG. 4 to 6 are graphs showing acetaldehyde removal performance with the horizontal axis representing time and the vertical axis representing acetaldehyde concentration.
  • the photocatalyst member 2 alone hereinafter referred to as Comparative Example 1
  • the activated carbon filter 4 alone hereinafter referred to as Comparative Example 2
  • the photocatalyst member 2 and the activated carbon filter 4 laminated were compared.
  • ultraviolet irradiation was started immediately after the start. As shown in FIG.
  • concentration of acetaldehyde was made to decrease the density
  • the photocatalyst member 2 performs air purification by a decomposition reaction, it can continue to deodorize to a deodorization rate of 100% without saturating the deodorization characteristics. Then, by overlapping the activated carbon filter 4 and the photocatalyst member 2, it is possible to obtain both functions and effects, and it is possible to obtain good deodorization characteristics even if it is thin like a plate.
  • the thin air purification apparatus 1 arranged in order of the light emission part 3, the photocatalyst member 2, and the activated carbon filter 4 from the indoor side was shown, for example, as shown in FIG. Also, the thin air purification device 101 can be provided in the order of the photocatalytic member 2 and the light emitting unit 3.
  • the thin air purification device of the present invention can dramatically improve the quietness and can secure the degree of freedom of the installation location of the device, and includes the thin air purification device of the present invention and the same.
  • Indoor air purification systems are industrially useful.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un appareil de purification d'air de type mince capable d'améliorer considérablement le silence et de garantir le degré de liberté du placement d'installation de l'appareil et un système de purification d'air intérieur comprenant celui-ci. L'invention porte également sur un appareil de purification d'air 1 qui est pourvu d'un élément photocatalyseur 2 comprenant de l'oxyde de titane. L'élément photocatalyseur 2 en forme de plaque, une partie d'émission de lumière en forme de plaque 3 qui irradie l'élément de photocatalyseur 2 avec une lumière ultraviolette et qui comprend une pluralité d'éléments LED, et un élément de charbon actif en forme de plaque 4 sont disposés dans le sens de l'épaisseur de telle sorte qu'au moins une partie des bords extérieurs de l'élément de photocatalyseur2 , la partie d'émission de lumière 3 et l'élément de charbon actif 4 sont saisis à l'aide d'un corps de cadre 5.
PCT/JP2017/023110 2016-07-27 2017-06-22 Appareil de purification d'air de type mince et système de purification d'air intérieur WO2018020920A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2018529447A JP6963550B2 (ja) 2016-07-27 2017-06-22 薄型空気浄化装置及び室内の空気浄化システム

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016147030 2016-07-27
JP2016-147030 2016-07-27

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WO2018020920A1 true WO2018020920A1 (fr) 2018-02-01

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JP (1) JP6963550B2 (fr)
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000167353A (ja) * 1998-12-02 2000-06-20 Denso Corp 空気清浄装置
JP2005261832A (ja) * 2004-03-22 2005-09-29 Shigeaki Kokubo 光触媒による空気洗浄方法及び装置
JP2006007806A (ja) * 2004-06-22 2006-01-12 Shigeaki Kokubo 自動車用空気清浄器
JP2006034771A (ja) * 2004-07-29 2006-02-09 Fujikura Ltd 浄化方法
JP2006271636A (ja) * 2005-03-29 2006-10-12 Lion Corp 消臭用品
JP2015150393A (ja) * 2014-02-19 2015-08-24 シャープ株式会社 ガス分解フィルタユニット及び空気清浄機
JP2016090088A (ja) * 2014-10-30 2016-05-23 日本通運株式会社 鮮度保持装置及びそれを備えたコンテナ

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000167353A (ja) * 1998-12-02 2000-06-20 Denso Corp 空気清浄装置
JP2005261832A (ja) * 2004-03-22 2005-09-29 Shigeaki Kokubo 光触媒による空気洗浄方法及び装置
JP2006007806A (ja) * 2004-06-22 2006-01-12 Shigeaki Kokubo 自動車用空気清浄器
JP2006034771A (ja) * 2004-07-29 2006-02-09 Fujikura Ltd 浄化方法
JP2006271636A (ja) * 2005-03-29 2006-10-12 Lion Corp 消臭用品
JP2015150393A (ja) * 2014-02-19 2015-08-24 シャープ株式会社 ガス分解フィルタユニット及び空気清浄機
JP2016090088A (ja) * 2014-10-30 2016-05-23 日本通運株式会社 鮮度保持装置及びそれを備えたコンテナ

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JP6963550B2 (ja) 2021-11-10

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