WO2023026032A1 - Dispositif de traitement d'air - Google Patents

Dispositif de traitement d'air Download PDF

Info

Publication number
WO2023026032A1
WO2023026032A1 PCT/GB2022/052163 GB2022052163W WO2023026032A1 WO 2023026032 A1 WO2023026032 A1 WO 2023026032A1 GB 2022052163 W GB2022052163 W GB 2022052163W WO 2023026032 A1 WO2023026032 A1 WO 2023026032A1
Authority
WO
WIPO (PCT)
Prior art keywords
chamber
conduit
air
infrared radiation
source
Prior art date
Application number
PCT/GB2022/052163
Other languages
English (en)
Inventor
Aleksander MOCZEK
Original Assignee
Equipmake Limited
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 Equipmake Limited filed Critical Equipmake Limited
Publication of WO2023026032A1 publication Critical patent/WO2023026032A1/fr

Links

Classifications

    • 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/04—Heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • 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
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/12—Microwaves
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00564—Details of ducts or cables of air ducts
    • 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
    • A61L2209/11—Apparatus for controlling air treatment
    • A61L2209/111—Sensor means, e.g. motion, brightness, scent, contaminant sensors

Definitions

  • the present disclosure relates to an air treatment device and more particularly to such a device which is suitable for installation in a vehicle.
  • the present disclosure provides an air treatment device comprising: an air inlet; an air outlet; a conduit defining an air flow path between the air inlet and the air outlet; and a source of infrared radiation in the conduit, wherein the infrared radiation source is configured to emit radiation having a wavelength in the range 820nm to 900pm.
  • the infrared radiation source is configured to emit short-wave infrared radiation having a wavelength in the range 2 to 3.5pm. Radiation in this range has been found to interact particularly strongly with water in particles in the air, such as bacteria and viruses, through absorption of the microwaves by the water, whilst minimising heating of the air.
  • the selected wavelength may be around 3 pm for example.
  • the infrared radiation source is configured to emit radiation having a wavelength in the range 820 to 1200nm, or 900 to HOOnm, and more preferably around lOOOnm.
  • infrared radiation having a wavelength in the range 820 to 1200nm is effective to dry and kill bacteria and viruses in an air flow. There may be minimal transfer of heat energy to the air flow, which may be particularly beneficial when feeding the air into a temperature-controlled environment.
  • the infrared radiation source may be configured to emit radiation having a wavelength in the range 700 to 900pm, or 750 to 850pm, and more preferably around 800pm.
  • a reflector is carried by the conduit (or an inwardly facing surface of the conduit may be reflective) for reflecting infrared radiation from the infrared radiation source back towards the interior of the conduit. This serves increase the intensity of the radiation in the conduit for a given power consumption.
  • the conduit is tubular.
  • the conduit may define a flow path for air passing through the device.
  • the infrared radiation source may be elongate and extend longitudinally along the conduit. Air flowing through the device may therefore be exposed to the infrared radiation along the length of the source, increasing the likelihood of any bacteria or viruses in the air flow receiving sufficient radiation to kill them.
  • the conduit may include a chamber, and a source of microwave radiation for emitting microwaves into the chamber. Accordingly, the air flow may be treated using both infrared and microwave radiation, which in combination enhance the ability of the device to disinfect air flowing through the device.
  • the microwave chamber is downstream of the source of infrared radiation. The heating effect of the microwaves is concentrated on any bacteria or virus particles in the air flow that still hold water so as to dry them further.
  • the present disclosure further provides an air treatment device comprising: an air inlet; an air outlet; a conduit defining an air flow path between the air inlet and the air outlet, wherein the conduit includes a chamber; and a source of microwave radiation for emitting microwaves into the chamber.
  • the microwaves act to heat up water in viruses and/or bacteria carried by the air flow passing through the device and thereby kill them.
  • the microwave radiation source may emit microwaves having a frequency in the range of 2 to 4 GHz, for example, and preferably around 2.54GHz.
  • the air flow path may extend longitudinally through the chamber, with the chamber including a plurality of (preferably planar) microwave reflective surfaces which are disposed circumferentially around the air flow path, the microwave radiation source arranged to emit microwaves transversely into the chamber, and the reflective surfaces arranged to reflect the microwaves transversely across the chamber.
  • the microwaves are transmitted across the chamber multiple times to enhance the effectiveness of the device.
  • the reflective surfaces may be arranged to reflect the microwaves sequentially from one microwave reflective surface to the next, so as to define a path for the microwaves which is incident on all of the reflective surfaces.
  • the chamber may include a cylindrical wall having a diameter corresponding to half (or around half) of the wavelength of the microwave radiation, or a whole number multiple thereof, in examples where the microwaves are reflected across the chamber by the walls of the chamber itself.
  • the radius of the chamber may correspond to the wavelength of the microwaves.
  • the distance from each microwave reflective surface to the next along the defined path for the microwaves may correspond to half (or around half) of the wavelength of the microwave radiation, or a whole number multiple thereof. For example, this distance may correspond to the wavelength of the microwaves.
  • the present disclosure also provides a vehicle including a device as disclosed herein for treating air flowing to an interior passenger space of the vehicle.
  • Figure 1 shows a schematic cross-sectional side view of an infrared-based air treatment device according to an example of the present disclosure
  • Figure 2 shows a perspective view of a micro wave-based air treatment device according to an example of the present disclosure.
  • Figure 3 shows a transverse cross-sectional view of the device shown in Figure 2.
  • Figure 1 is a cross-sectional view of an air treatment device 10 according to one implementation of the present disclosure. It includes an air conduit 12 having an inlet 14 at one end and an outlet 16 at its opposite end. The conduit may have a diameter of around 100mm. An infrared radiation source 18 is located in the conduit. The source may comprise a carbon fibre heating element, for example. The radiation source may be configured to emit radiation having a wavelength in the range 2 to 3.5pm, and preferably around 3 pm.
  • the heating element may be elongate and extend longitudinally along the conduit.
  • the conduit 12 may have a tubular configuration.
  • the heating element may be spaced from the walls of the conduit.
  • the heating element may extend along a central axis of the conduit.
  • a reflective surface may surround the heating element.
  • a reflector 20 may be carried by the inner surface of the conduit to reflect radiation emitted by the infrared source back towards the interior of the conduit.
  • the reflector may provide a mirrored surface.
  • the power rating of the infrared radiation source may be selected having regard to the expected flow rate and humidity of air to pass through the device during its use.
  • a carbon fibre heating element having a power output of between 120W and 1200W may be appropriate for a device to be used in a passenger bus. It may be appropriate to supply around 10 litres/min per passenger in such a vehicle.
  • Figures 2 and 3 show an air treatment device 30 which uses microwave radiation according to a further aspect of the present disclosure.
  • the device 30 includes a conduit 32 having an air inlet 34 and an air outlet 36. Air entering the device in direction A (parallel to a central axis 37 of the device) flows longitudinally through the device along an air flow path to the air outlet 36 where it exits in direction B.
  • the conduit includes a chamber 38 having a magnetron 40 coupled thereto.
  • the magnetron is arranged to generate microwave radiation and to transmit it into the chamber.
  • the chamber includes a central cylindrical portion 42 arranged with its central longitudinal axis aligned with the central axis 37 of the device.
  • the chamber also includes two frustoconical end portions 44 which extend between respective, opposite ends of the cylindrical portion and the adjacent sections of the conduit 32 (and have their longitudinal central axes aligned with the central axis 37).
  • the walls of the end portions 44 may subtend an angle of around 45° with the central axis of the device.
  • the radius of the chamber may correspond to half of the wavelength of the microwave radiation emitted by the magnetron, or a whole number multiple thereof.
  • the microwave radiation has a frequency of 2.54 GHz
  • the chamber has a radius equal to the wavelength of the radiation, that is 11.8cm.
  • the axial length of the chamber may be equal to its radius.
  • the radius of the chamber may be twice that of the conduit, for example.
  • Figure 3 illustrates how the chamber 38 is arranged to reflect microwave radiation emitted by the magnetron across the air flowing through the device 30.
  • a plurality of planar microwave reflective surfaces are arranged circumferentially around the inner surface of the cylindrical portion 42.
  • Microwaves are emitted by the magnetron into the chamber along a transverse direction D. Those waves are then reflected by a reflective surface along another transverse direction which forms an angle with the direction of the waves received from the magnetron. The reflected waves then travel towards another reflective surface within the chamber to be reflected again towards a further reflective surface, causing the waves to travel across the body of the chamber multiple times, as illustrated in Figure 3.
  • the microwaves are reflected towards each reflective surface in turn, so that the path of the microwaves is incident on all of the reflective surfaces.
  • the chamber may include sixteen planar reflective surfaces for example.
  • the reflective surfaces may be provided by polished aluminium mirrors or by the surface of another metal.
  • the power consumption of the microwave device will depend on the humidity of the air flow. In relatively high humidity, such a device designed for use in a vehicle may consume around IkW. In lower humidity conditions, the power consumption may be reduced to about 200W.
  • the term “around” may mean +/-5% of the stated value.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

L'invention concerne un dispositif de traitement de l'air (10) qui comprend une entrée d'air (14), une sortie d'air (16), un conduit (12) définissant un trajet d'écoulement d'air entre l'entrée d'air et la sortie d'air, et une source (18) de rayonnement infrarouge dans le conduit, la source de rayonnement infrarouge étant configurée pour émettre un rayonnement ayant une longueur d'onde comprise dans la plage de 820 nm à 900 µm. L'invention concerne également un dispositif de traitement de l'air comprenant une chambre (38) et une source (40) de rayonnement micro-ondes pour émettre des micro-ondes dans la chambre.
PCT/GB2022/052163 2021-08-23 2022-08-22 Dispositif de traitement d'air WO2023026032A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB2112059.7A GB202112059D0 (en) 2021-08-23 2021-08-23 An air treatment device
GB2112059.7 2021-08-23

Publications (1)

Publication Number Publication Date
WO2023026032A1 true WO2023026032A1 (fr) 2023-03-02

Family

ID=77913979

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2022/052163 WO2023026032A1 (fr) 2021-08-23 2022-08-22 Dispositif de traitement d'air

Country Status (2)

Country Link
GB (2) GB202112059D0 (fr)
WO (1) WO2023026032A1 (fr)

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1456358A (zh) * 2003-06-02 2003-11-19 东南大学 用微波快速灭活气体中病原体的装置及方法
CN200945263Y (zh) * 2006-07-18 2007-09-12 张吉礼 微波消毒空气净化器
KR20080062624A (ko) * 2006-12-29 2008-07-03 엘지전자 주식회사 공기조화장치
KR20100029668A (ko) * 2008-09-08 2010-03-17 권대웅 자외선램프를 이용한 광촉매 공기청정펜
CN104675582A (zh) * 2015-02-05 2015-06-03 吉林大学 车载微波重整器可燃混合气加热装置
WO2017011612A1 (fr) * 2015-07-14 2017-01-19 Vitabeam Ltd. Procédés et dispositifs d'assainissement, de désinfection et de stérilisation
CN109939255A (zh) * 2019-04-26 2019-06-28 刘思聪 一种微波空气消毒器
CN111256251A (zh) * 2020-04-13 2020-06-09 齐丽娜 一种碳纤维空气过滤杀菌消毒机
EP3753397A1 (fr) * 2019-06-20 2020-12-23 GND Solutions Système et procédé de culture d'un stock de plantes
CN212746748U (zh) * 2020-04-27 2021-03-19 陕西青朗万城环保科技有限公司 一种空调新风***消毒杀菌装置及空气净化***
US10959448B2 (en) * 2009-04-21 2021-03-30 Vitabeam Ltd Method and device for disinfection and/or purification of a product
CN112628926A (zh) * 2020-12-25 2021-04-09 西安建筑科技大学 一种基于膜截留及微波加热的空气消毒装置
CN213158097U (zh) * 2020-07-03 2021-05-11 刘巍 一种新型室内微波空气消毒装置
US20210178007A1 (en) * 2020-04-16 2021-06-17 Sichuan University Air purification device able to kill bacteria and viruses

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204845448U (zh) * 2015-06-21 2015-12-09 吉林唯圣能源科技开发有限公司 远红外线热源型车载净化器
CN213056623U (zh) * 2020-03-18 2021-04-27 广汽蔚来新能源汽车科技有限公司 汽车及杀菌灯具
CN212369350U (zh) * 2020-04-28 2021-01-19 无锡市宏宇汽车配件制造有限公司 原子态氧空气灭菌器

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1456358A (zh) * 2003-06-02 2003-11-19 东南大学 用微波快速灭活气体中病原体的装置及方法
CN200945263Y (zh) * 2006-07-18 2007-09-12 张吉礼 微波消毒空气净化器
KR20080062624A (ko) * 2006-12-29 2008-07-03 엘지전자 주식회사 공기조화장치
KR20100029668A (ko) * 2008-09-08 2010-03-17 권대웅 자외선램프를 이용한 광촉매 공기청정펜
US10959448B2 (en) * 2009-04-21 2021-03-30 Vitabeam Ltd Method and device for disinfection and/or purification of a product
CN104675582A (zh) * 2015-02-05 2015-06-03 吉林大学 车载微波重整器可燃混合气加热装置
WO2017011612A1 (fr) * 2015-07-14 2017-01-19 Vitabeam Ltd. Procédés et dispositifs d'assainissement, de désinfection et de stérilisation
CN109939255A (zh) * 2019-04-26 2019-06-28 刘思聪 一种微波空气消毒器
EP3753397A1 (fr) * 2019-06-20 2020-12-23 GND Solutions Système et procédé de culture d'un stock de plantes
CN111256251A (zh) * 2020-04-13 2020-06-09 齐丽娜 一种碳纤维空气过滤杀菌消毒机
US20210178007A1 (en) * 2020-04-16 2021-06-17 Sichuan University Air purification device able to kill bacteria and viruses
CN212746748U (zh) * 2020-04-27 2021-03-19 陕西青朗万城环保科技有限公司 一种空调新风***消毒杀菌装置及空气净化***
CN213158097U (zh) * 2020-07-03 2021-05-11 刘巍 一种新型室内微波空气消毒装置
CN112628926A (zh) * 2020-12-25 2021-04-09 西安建筑科技大学 一种基于膜截留及微波加热的空气消毒装置

Also Published As

Publication number Publication date
GB202212158D0 (en) 2022-10-05
GB2611866A (en) 2023-04-19
GB202112059D0 (en) 2021-10-06

Similar Documents

Publication Publication Date Title
US20230088023A1 (en) Fluid disinfection apparatus and methods
CN108472396B (zh) 流体杀菌装置
JP5791899B2 (ja) 紫外光処理チャンバー
US5932886A (en) Ultraviolet irradiation device
CN111320229B (zh) 流体杀菌装置
RU188297U1 (ru) Бактерицидный облучатель
JP2015531616A (ja) 旅客輸送機関に搭載される、空気を殺菌するためのシステム及び方法
CN111256249A (zh) 防气溶胶病毒中央空调杀菌装置及空调***
US12030646B2 (en) Aircraft air duct system for transmitting power and light
RU2018127817A (ru) Трубчатый концентратор для концентрического излучения электромагнитных волн
WO2023026032A1 (fr) Dispositif de traitement d'air
CN202988798U (zh) 一种紫外消毒装置
TW201510451A (zh) 乾燥爐
US6700128B2 (en) Apparatus and method for simultaneously germicidally cleansing both air and water
US20220362431A1 (en) Visible and infrared light reflective air purification system
CN211011714U (zh) 防气溶胶病毒中央空调杀菌装置及空调***
WO2017060088A1 (fr) Cuve à circulation permettant de réduire les micro-organismes viables dans un fluide
JP2000311768A (ja) 発熱装置および加熱流体発生装置
KR102686645B1 (ko) 유체 소독 장치 및 방법
CN111588879A (zh) Uv杀菌装置及净化器
WO2007082337A1 (fr) Ameliorations liees aux appareils de traitement d'eau
CN215780170U (zh) 一种微波灭杀细菌和病毒装置
CN216384127U (zh) 一种适用于蒸烤箱的红外汽化器
JP7394242B1 (ja) 乾燥装置
RU2757925C2 (ru) Реактор для проксимального и перпендикулярного излучения электромагнитных волн на тонком слое жидкости

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22768900

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE