WO2022145925A1 - Appareil de stérilisation photocatalytique utilisant une lumière uv de lampe à del - Google Patents

Appareil de stérilisation photocatalytique utilisant une lumière uv de lampe à del Download PDF

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Publication number
WO2022145925A1
WO2022145925A1 PCT/KR2021/019946 KR2021019946W WO2022145925A1 WO 2022145925 A1 WO2022145925 A1 WO 2022145925A1 KR 2021019946 W KR2021019946 W KR 2021019946W WO 2022145925 A1 WO2022145925 A1 WO 2022145925A1
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WO
WIPO (PCT)
Prior art keywords
sterilization
photocatalytic
photocatalyst
led
plate
Prior art date
Application number
PCT/KR2021/019946
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English (en)
Korean (ko)
Inventor
방승섭
장해영
Original Assignee
방승섭
장해영
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Filing date
Publication date
Application filed by 방승섭, 장해영 filed Critical 방승섭
Publication of WO2022145925A1 publication Critical patent/WO2022145925A1/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
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • A61L9/205—Ultraviolet radiation using a photocatalyst or photosensitiser
    • 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
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/14—Filtering means
    • 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
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/15—Supporting means, e.g. stands, hooks, holes for hanging

Definitions

  • the present invention relates to a photocatalytic sterilization device, in particular, by using the ultraviolet light of an LED lamp, the service life is prolonged, the generation of more radicals is possible by increasing the area of the photochemical reaction, and the volume of the LED lamp is small and the blow obstruction is reduced by reducing the radical
  • a photocatalytic sterilization device using ultraviolet rays of an LED lamp to increase the sterilization power by increasing the emission efficiency of
  • Photocatalytic reaction is being put to practical use in various fields such as home appliances, roads, vehicles, air treatment, medical treatment, and water quality treatment.
  • various volatile organic compounds, formaldehyde, etc. which are commonly referred to as sick house syndrome and old house syndrome, are decomposed and removed using photocatalytic reaction.
  • photocatalytic reaction is one of the representative future technologies that are in the spotlight in terms of energy and environment. Accordingly, it is currently being actively used in the energy and environmental fields. It is being actively used to decompose and remove harmful organic matter and air pollutants because it can easily remove pollutants spread all over the earth with only light without much energy.
  • a photocatalytic purification device is used for the purpose of purifying and sterilizing indoor air.
  • Korean Patent Registration No. 10-0874130 a 'purifying device using a photocatalyst' is proposed. It is configured to be connected in series or in parallel by installing each UV lamp and ozone (O3) lamp in an independent tube, independent of each wavelength, and the inner end of the spiral photocatalyst plate into which each lamp is inserted is wrinkled to form air Alternatively, the contact area with water is further increased, and at the same time, wrinkles are formed at the end contacting the lamp to increase the contact area with the lamp to prevent damage to the lamp.
  • the background art has a problem in that the sterilization power is lowered by the spiral photocatalyst plate causing an airflow obstruction and lowering the exhaust efficiency of the fan.
  • Patent Document 1 Korean Patent Registration No. 10-0874130
  • the present invention uses LED lamp ultraviolet rays to prolong the service life, generate more radicals by increasing the area of photochemical reaction, and decrease the volume of the LED lamp to reduce blowing disturbances. It is an object of the present invention to provide a photocatalytic sterilization device using ultraviolet light from an LED lamp to be increased.
  • a photocatalytic sterilization device using an LED lamp ultraviolet light according to a preferred embodiment of the present invention
  • a housing having an air inlet at one location and a first air outlet at another location;
  • a photocatalytic sterilization module having a sterilization duct that causes a reaction between LED ultraviolet rays and a photocatalytic material to kill organic substances such as bacteria and viruses, and is inserted into the housing and fixedly installed;
  • a blower for generating a blowing force, sucking outside air from an air intake port, and injecting it into the sterilization duct;
  • an air filter installed on the side of the air intake to remove fine dust and contaminants in the air.
  • the housing includes a housing body having a sterilization module storage room, a housing lower cover installed openly and openably on a lower portion of the housing body and having the air inlet, and an openable and openable installation on the upper portion of the housing body and the first It is characterized in that it consists of a housing upper cover having an air outlet.
  • the housing body is characterized in that it has a predetermined radius of curvature on both left and right sides to form a circular column shape.
  • an air filter holder for mounting an air filter is further installed on the inner surface of the housing lower cover, and an air filter replacement opening for replacing the air filter is formed on one side of the air filter holder.
  • the photocatalyst sterilization module includes a photocatalytic sterilization chamber of a trapezoidal cross section by a front plate and a rear plate that are parallel to each other by a certain height, and a trapezoidal cross-section by an inclined plate that is connected to the front plate and the rear plate and inclined at a predetermined angle, but photocatalyst material on all inner surfaces a sterilization duct coated with a blast inlet to the lower part of the photocatalytic sterilization chamber; a photocatalyst inclined scattering plate and a photocatalyst front scattering plate disposed inside each of the both swash plates and the front plate of the sterilization duct and coated with a photocatalytic material to induce scattering of ultraviolet rays;
  • One or more LED ultraviolet emitters arranged in the photocatalytic sterilization room, the LED strip installation rod having a circular cross section over a certain length, the LED strip being circularly disposed on the outer circumferential surface of the LED strip installation rod to generate LED ultraviolet rays
  • the LED ultraviolet emitter support is characterized in that the emitter fastening clamps are further installed to be fastened to and separated from the LED ultraviolet emitter support with bolts in order to facilitate replacement of the LED ultraviolet emitter.
  • the photocatalyst inclined scattering plate and the photocatalyst front scattering plate are characterized in that the steel plate is bent to increase scattering efficiency, so that the ridges each having an angle of 60 degrees have a certain width and are continuously connected to form a wrinkled shape.
  • the LED ultraviolet emitter is characterized in that a pair is installed symmetrically left and right in the photocatalytic sterilization room.
  • the inclined plate is characterized in that installed inclined at an angle of 50 degrees with respect to the rear plate.
  • the outer peripheral surface of the LED strip installation rod is coated with titanium dioxide as a photocatalytic material.
  • the back plate is characterized in that the photocatalyst back scattering plate coated with a photocatalyst material that causes the LED ultraviolet rays generated from the LED strip and the photocatalyst half is further installed.
  • the mountain shape of the photocatalyst inclined scattering plate is disposed in a direction perpendicular to the mountain shape of the photocatalyst front scattering plate. It is characterized in that it is arranged to coincide with the direction.
  • an opening for duct management is formed on the front plate of the sterilization duct, and the photocatalyst front scattering plate base on which the photocatalyst front scattering plate is mounted is detachably installed in the duct management opening.
  • a photocatalyst recirculation outlet is further formed at the upper portion of the sterilization duct, and between the housing and the sterilization duct is in communication with the photocatalyst recirculation outlet and the blower inlet of the blower It is characterized in that a photocatalyst recirculation passage is provided.
  • the installation safety is increased because the housing has a double pillar shape on both sides.
  • a photocatalyst recirculation path is provided between the housing and the sterilization duct to increase sterilization efficiency.
  • the LED strip installed on the LED UV emitter uses a UV LED of 200 to 300 nm to increase the replacement cycle and lifespan.
  • the sterilization duct and the photocatalyst scattering plate by applying the sterilization duct and the photocatalyst scattering plate, the area of photochemical reaction is increased, so more radicals (OH-) can be generated, and the volume of the LED lamp is reduced, so the blowing resistance of the blowing fan is reduced and the emission efficiency of radicals is decreased. It has the advantage of increasing the sterilization power.
  • FIG. 1 is a perspective view of a photocatalytic sterilization apparatus according to an embodiment of the present invention
  • Figure 2 is an exploded perspective view of Figure 1;
  • Fig. 3 is a front view of Fig. 1;
  • Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3;
  • Fig. 5 is a cross-sectional view taken along line B-B of Fig. 3;
  • FIG. 6 is a cross-sectional view taken along line C-C of FIG. 3 ;
  • FIG. 7 is an enlarged view of the main part of the photocatalyst front scattering plate shown in FIG. 5;
  • FIG. 8 is a cross-sectional view in which a rear scattering plate is additionally installed in the photocatalytic sterilizer shown in FIG. 1;
  • FIG. 9 is a state diagram in which the emitter fastening clamp is separated from the LED ultraviolet emitter applied in FIG. 1;
  • FIG. 10 is a longitudinal cross-sectional view of one side of FIG.
  • the photocatalytic sterilization apparatus 10 is provided with a housing 12 having an air inlet 122a at one location and a first air outlet 123a at another location as shown in FIGS. 1 to 3 .
  • the air inlet 122a is formed in the form of a long hole in the lower portion of the housing 12 and is arranged in plurality
  • the first air outlet 123a is in the form of a long hole in the upper surface and the front surface of the upper side of the housing 12. It is arranged in multiple numbers.
  • the housing 12 includes a housing body 121 having a sterilization module storage chamber 121a therein, and a housing lower cover that is installed in a lower portion of the housing body 121 to be opened and closed by screw fastening and has the air intake port 122a. 122 and a housing upper cover 123 installed on the upper portion of the housing body 121 to be opened and closed by screw fastening and having the first air outlet 123a.
  • the housing body 121 has a predetermined radius of curvature R on the left and right sides as shown in FIG. 4 to form a circular column shape.
  • the housing body 121 has a beautiful appearance as if an arch column is formed by forming a radius of curvature R on both sides of the housing body 121 .
  • housing lower cover 122 and the housing upper cover 123 can be separated by disassembling the screws, so that the photocatalytic sterilization module 20 to be described later can be easily inserted into the sterilization module storage chamber 121a in the housing 12 and installed. have.
  • a second air outlet 122b may be additionally installed on the upper front side of the housing body 121 . Therefore, in this embodiment, the purified air is discharged through the first air outlet 123a and the second air outlet 122b.
  • a plurality of moving wheels 5 may be installed on the lower surface of the housing 12 as shown in FIG. 3 . Therefore, the photocatalytic sterilizer 10 can be easily moved through the housing 12 side moving wheel 5 .
  • An air filter holder 124 for mounting the air filter 40 is installed on the inner surface of the housing lower cover 122 .
  • the air filter holder 124 has an air filter replacement opening 125 for replacing the air filter 40 on one side as shown in FIG. 1 . Therefore, it is possible to easily install the air filter 40 by simply inserting it into the air filter holder 124 .
  • the photocatalytic sterilization module 20 is installed inside the housing 12 .
  • the photocatalyst sterilization module 20 has a sterilization duct 210 and generates LED ultraviolet rays inside it to oxidize hydroxyl radicals (OH-) (hereinafter referred to as 'radicals') generated by a reaction between photocatalytic materials. It decomposes and destroys organic substances such as bacteria and viruses.
  • OH- hydroxyl radicals
  • a blower 30 is provided for sucking the outside air in the room where the photocatalytic sterilization device 10 is disposed and injecting it into the sterilization duct 210 .
  • the blower 30 is mounted in the blowing chamber 217 on the lower side of the sterilization duct 210 as shown in FIGS. 2 and 6 .
  • the blower 30 generates blowing force, sucks in outside air through the air intake port 122a on the housing lower cover 122 side, and injects it into the sterilization duct 210 , and then the upper front surface of the housing upper cover 123 and the housing 12 . It is discharged through the first and second air outlets (123a, 122b) formed in the .
  • An air filter 40 for removing fine dust and contaminants in the air is installed on the side of the air intake 122a of the housing lower cover 122 .
  • the air filter 40 is accommodated in a replaceable air filter holder 124 installed on the inner surface of the housing lower cover (122).
  • the air filter 40 may be any one or more of a pre-filter, a HEPA filter, and an ultra-high performance filter (ULPA, Ultra Low Penetration Air filter).
  • ULPA Ultra Low Penetration Air filter
  • the photocatalytic sterilizer 10 is equipped with an air filter 40, so that fine dust filtration of indoor air is also performed.
  • the air filter 40 may be replaced with an antibacterial filter or an activated carbon filter or used together with them.
  • the photocatalytic sterilization module 20 is a sterilization duct 210 that provides a blowing passage and a photocatalytic reaction chamber, both sides of the swash plate 213 and the front plate 211 of the sterilization duct 210. At least one disposed and coated with a photocatalytic material to emit ultraviolet rays to the photocatalytic inclined scattering plate 220 and the photocatalyst front scattering plate 230, the photocatalytic inclined scattering plate 220 and the photocatalytic front scattering plate 230 for light scattering and diffusion
  • the LED UV emitter 240 and the LED UV emitter support 250 for supporting the LED UV emitter 240 in the sterilization duct 210 are included.
  • the sterilization duct 210 is connected to the front plate 211 and the rear plate 212 and the front plate 211 and the rear plate 212 parallel to each other by a predetermined height by a swash plate 213 inclined at a predetermined angle. It is composed of a photocatalytic sterilization chamber 214 having a trapezoidal cross section. Preferably, all inner surfaces of the sterilization duct 210 are coated with a photocatalytic material to increase the photocatalytic reaction area.
  • the inclined plate 213 is inclined at an angle of 50 degrees with respect to the rear plate 212 to further promote the light reaction.
  • the sterilization duct 210 is made of a corrosion-resistant stainless steel plate in this embodiment, but is not limited to such a metal material.
  • the sterilization duct 210 is formed with a blower inlet 214a at which the outlet of the blower 30 is located as shown in FIGS. 2 and 4 as a lower portion of the photocatalytic sterilization chamber 214 . Therefore, when the blower 30 is driven, a blowing flow is generated into the photocatalytic sterilization chamber 214 .
  • an opening 211a for duct management is formed on the front plate 211 of the sterilization duct 210 as shown in FIG.
  • a photocatalyst front scattering plate base 232 on which the plate 230 is mounted is detachably installed.
  • the photocatalyst inclined scattering plate 220 and the photocatalyst front scattering plate 230 are formed by bending a stainless steel plate so that the ridges 220a and 230a each having a wrinkle angle ⁇ are continuously connected with a certain width to form a wrinkled shape.
  • the ridges 220a and 230a form a wrinkle angle ⁇ of 60 degrees so that light scattering and diffusion are efficiently performed in the sterilization duct 210 .
  • the ridges 220a of the photocatalyst inclined scattering plate 220 are disposed in a direction perpendicular to the ridges 230a of the photocatalyst front scattering plate 230, and the photocatalyst front scattering plate 230 ridges ( The longitudinal direction of 230a) is preferably arranged to coincide with the blowing direction of the blower 30 in order to minimize the resistance of the air flow.
  • a photocatalyst rear scattering plate 270 coated with a photocatalyst material that generates half of the LED ultraviolet rays and the photocatalyst generated from the LED strip 242 may be further installed on the rear plate 212 in order to increase the sterilization ability.
  • the LED ultraviolet emitter 240 is a photocatalytic sterilization room ( 214) is located.
  • the outer peripheral surface of the LED strip installation rod 241 is preferably coated with a photocatalytic material.
  • a pair of LED ultraviolet emitters 240 are symmetrically positioned in the photocatalytic sterilization chamber 214 to increase the amount of radiation.
  • LED UV rays generated from the LED strip 242 may have a wavelength in the range of 200 to 300 nm.
  • the LED UV emitter support 250 is installed on the rear plate 212 to fix and support the LED UV emitter 230 .
  • the LED ultraviolet emitter support 250 has a radiator fastening clamp 260 that is fastened to and separated from the LED ultraviolet emitter support 250 with a bolt 261 to facilitate replacement of the LED ultraviolet emitter 230 . have.
  • a photocatalyst recirculation outlet 215 is further formed on the upper portion of the sterilization duct 210 as shown in FIGS. 2 and 3, and the housing 12 and the sterilization duct Between the 210, a photocatalyst recirculation outlet 215 and a photocatalyst recirculation passage 13 communicating with the air inlet 301 of the blower 30 may be provided (see FIGS. 5 and 10).
  • Titanium dioxide (TiO 2 ) was used as the photocatalytic material applied in this example. Titanium dioxide has a higher oxidizing power than chlorine or ozone, so it has excellent sterilization power, and has the ability to decompose all organic substances into carbon dioxide and water. As a photocatalyst, titanium dioxide has excellent durability and abrasion resistance, and does not change itself because it functions as a catalyst. However, the present invention is not limited to titanium dioxide (TiO 2 ), and other known photocatalytic materials (ZnO, CdS, ZrO2, V2O3, WO3, perovskite-type composite metal oxide (SrTiO3), etc.) may be applied.
  • photocatalytic materials ZnO, CdS, ZrO2, V2O3, WO3, perovskite-type composite metal oxide (SrTiO3), etc.
  • the blowing flow is generated inside the sterilization duct 210 to which the outlet of the blower 30 is connected. At this time, outside air (contaminants, bacteria, viruses, etc.) is sucked through the air inlet 122a of the housing cover 122 .
  • the ultraviolet rays generated from the LED strip 242 of the LED ultraviolet emitter 240 are emitted and collide with the inner surface of the sterilization duct 210 as well as the photocatalytic inclined scattering plate 220 and the photocatalytic inclined scattering plate 200 . Electrons are formed from the coated titanium dioxide to generate strong oxidizing power, and hydroxyl radicals (-OH) and superoxide (-O2) are generated to oxidize organic compounds such as pollutants, bacteria and viruses contained in inhaled outdoor air. , decomposes and kills.
  • dust contained in the outside air through the air intake port 122a of the housing cover 122 is primarily filtered through the air filter 40, and then organic materials such as bacteria and viruses are decomposed and killed by oxidation power. Accordingly, the air from which dust is removed and organic substances such as viruses are decomposed and purified is discharged through the first air outlet 123a and the second air outlet 122b.
  • the blower 30 reduces the blown obstruction, and the emission efficiency of radicals (OH-) is increased, so that the sterilization power is increased.
  • the present invention uses an LED-type photocatalyst, and the replacement cycle of the LED strip 242 is longer, and thus has an advantage in that the lifespan of the LED strip 242 is increased several times longer than that of the conventional screw-type or filter-type photocatalyst.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

La présente invention concerne un appareil de stérilisation photocatalytique utilisant une lumière ultraviolette de lampe à DEL, l'appareil de stérilisation photocatalytique présentant une durée de vie prolongée grâce à l'utilisation de la lumière ultraviolette de lampe à DEL, ce qui permet la génération d'un plus grand nombre de radicaux grâce à l'augmentation de la surface d'une réaction photochimique, et ce qui renforce l'efficacité d'émission de radicaux en réduisant les freins au soufflage en raison d'un volume réduit d'une lampe à DEL et en augmentant ainsi la capacité de stérilisation. L'appareil de stérilisation photocatalytique utilisant une lumière ultraviolette de lampe à DEL, selon un mode de réalisation approprié de la présente invention, comprend : un boîtier comportant un orifice d'admission d'air à un emplacement et un premier orifice d'évacuation d'air à un autre emplacement ; un module de stérilisation photocatalytique comportant un conduit de stérilisation pour permettre à une réaction d'avoir lieu entre une lumière ultraviolette de DEL et un matériau photocatalytique afin de tuer des substances organiques, telles que des bactéries, des virus, etc., le conduit de stérilisation étant inséré dans le boîtier pour être installé à demeure ; une soufflante qui génère une force de soufflage pour aspirer l'air extérieur à partir de l'orifice d'admission d'air et injecter celui-ci dans le conduit de stérilisation ; et un filtre à air installé sur un côté de l'orifice d'admission d'air pour éliminer les poussières fines et les contaminants de l'air.
PCT/KR2021/019946 2020-12-28 2021-12-27 Appareil de stérilisation photocatalytique utilisant une lumière uv de lampe à del WO2022145925A1 (fr)

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KR1020200184091A KR102266703B1 (ko) 2020-12-28 2020-12-28 Led 램프 자외선을 이용한 광촉매 살균장치
KR10-2020-0184091 2020-12-28

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Cited By (1)

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CN115192757A (zh) * 2022-09-01 2022-10-18 潍坊生命方舟生物技术有限公司 一种复合紫外线高效杀菌消毒装置

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KR102266703B1 (ko) * 2020-12-28 2021-06-18 방승섭 Led 램프 자외선을 이용한 광촉매 살균장치
KR102445091B1 (ko) 2021-08-04 2022-09-20 주식회사 디엠엘이디 항균 및 살균 기능을 갖는 led 조명

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KR20150071255A (ko) * 2013-12-18 2015-06-26 서울바이오시스 주식회사 자외선 발광 다이오드가 구비된 공기청정기
KR101924133B1 (ko) * 2017-06-14 2018-12-03 (주)세화하이테크 살균기능이 포함된 공기청정기
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KR102266703B1 (ko) * 2020-12-28 2021-06-18 방승섭 Led 램프 자외선을 이용한 광촉매 살균장치

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115192757A (zh) * 2022-09-01 2022-10-18 潍坊生命方舟生物技术有限公司 一种复合紫外线高效杀菌消毒装置
CN115192757B (zh) * 2022-09-01 2023-08-29 潍坊生命方舟生物技术有限公司 一种复合紫外线高效杀菌消毒装置

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