WO2022149163A1 - Système de développement de propriétés germicides dans des ventilateurs par application d'une lumière ultraviolette - Google Patents

Système de développement de propriétés germicides dans des ventilateurs par application d'une lumière ultraviolette Download PDF

Info

Publication number
WO2022149163A1
WO2022149163A1 PCT/IN2022/050011 IN2022050011W WO2022149163A1 WO 2022149163 A1 WO2022149163 A1 WO 2022149163A1 IN 2022050011 W IN2022050011 W IN 2022050011W WO 2022149163 A1 WO2022149163 A1 WO 2022149163A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
fan
source device
disinfecting
light
Prior art date
Application number
PCT/IN2022/050011
Other languages
English (en)
Inventor
Vaibhav Verma
Original Assignee
Vaibhav Verma
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 Vaibhav Verma filed Critical Vaibhav Verma
Publication of WO2022149163A1 publication Critical patent/WO2022149163A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • F04D25/088—Ceiling fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Definitions

  • the present invention portrays to application of ultraviolet (UV) electromagnetic radiation in disinfection of air flowing through fans such as ceiling fan, wall fan, etc. by installing a UV device.
  • UV ultraviolet
  • Air is essential for all living organisms to stay alive and function. However, air is also a very common medium for microorganisms (pathogens) such as bacteria, virus, etc. to communicate. Air can lead to transmission of pathogens and contamination of whole rooms, houses or even buildings. In recent times, with the rise of virus like COVID-19, it has been observed that if one infected person is present in a room or in a vehicle with other people, then the other people have a very high risk of getting infected through the air circulated in the environment. Many other pathogens, including but not limited to bacteria, virus, fungus, parasite, prion, etc. have the ability to transmit/spread in the same way through air. Such pathogens enter the body while breathing and lead to various diseases.
  • the principal objective of this invention is to provide a system for disinfection of air flowing through fans, from microorganisms and pathogens by exposing the air to ultraviolet electromagnetic radiation emitted by a UV source device.
  • Another objective of this invention is to provide a method for installation of ultraviolet electromagnetic radiation source device in fan units in various locations for the fan unit to disinfect the air flowing through it.
  • Another objective of this invention is to reduce the odour in air by exposing such particles present in the airstream to UV light and also automatically protecting the exposed parts of fan mold formation.
  • Another objective of this invention is to increase the efficiency of the system by use of photocatalyst materials.
  • the present invention discloses an air decontamination technique that can easily facilitate the feature of disinfection of air flowing through fans by installation of UV source device to eliminate the pathogens present in the airstream.
  • the disclosed technique can easily be employed in already installed/active or new/under manufacturing fan units.
  • the present invention provides a method to disinfect airstream flowing through fan units with the use of ultraviolet electromagnetic radiation, in which, the air flowing through the unit is exposed to ultraviolet (UV) electromagnetic radiation emitted by the UV source device and the pathogens in the air are exterminated due to the effect of UV light.
  • UV ultraviolet
  • Ultraviolet range (between 100-400nm specially Ultraviolet-C between 200- 280nm) of electromagnetic radiation has germicidal properties which help in disinfection of surfaces and mediums including air and fluids. UV at these germicidal wavelengths damage a microorganism's DNA/RNA so that it cannot reproduce, hence, making it harmless.
  • the main effect of ultraviolet electromagnetic radiation on biological systems works by two methods, (i) it produces a large number of free radicals that destabilize macromolecules and (ii) it is absorbed by the DNA molecules in the cells of microorganisms and cause alterations that damage the microorganism.
  • this method has additional benefits like reduction of odour from air due to exposure to UV radiation. Since UV light interacts with water molecules in the air to produce free radicals (O- and -OH), these free radicals go on to oxidize the complex molecules found in the air and as an outcome, the end result is a sequential and instantaneous gas breakdown, which eliminates the odour causing molecules from air. Hence, this method is also effective in increasing the ambience of the surrounding. Also, UV radiation protects the exposed fan parts from mold formation by eliminating the mold forming microorganisms.
  • Figure 1 illustrates the architecture of a ceiling fan.
  • Figure 2 visualizes the airflow generated by a fan in a room.
  • Figure 3 illustrates the architecture of a wall fan.
  • Figure 4 illustrates a few UV source devices.
  • Figure 5 visualises a few UV source devices placed in a ceiling fan.
  • Figure 6 visualizes a few UV source devices placed in a ceiling fan.
  • Figure 7 visualizes a few UV source devices placed in a wall fan.
  • FIG. 8 Illustrates a flowchart of working mechanism of this disclosure. Detailed Description:
  • Fans such as ceiling fan, wall fan, etc. are used to generate circulation of air to facilitate climate control and to increase comfort in the surroundings. In all such systems, the air near the fan is forced by the blades to flow. Hence, the present invention does not need any additional power/mechanism for inducing air circulation, since air is already flowing through the fan unit and the UV source device is placed such that the flowing air is exposed to the ultraviolet electromagnetic radiation emitted by the UV source device.
  • Figure 1 illustrates the architecture of a ceiling fan (1) mounted on a ceiling (3). Consisting of blades (2), mounting bracket (4), down rod (5), canopy (6) and a cover (7).
  • Figure 2 visualizes the flow of air generated by a fan (1) in a room (8). The arrows in the figure indicate the flow of the air through the system.
  • Ceiling fans (1) are a very common equipment and are mounted on the ceilings (3) of rooms with the help of a mounting bracket (4) and a down rod (5).
  • the canopy (6) and cover (7) enclose the driving components of the fan (1) and air is circulated with the help of blades (2).
  • Figure 3 illustrates the architecture of a wall fan (9) mounted on a wall (11). Consisting of blades (10), motor (12), mounting clamp (13), control panel (14), fan cover (15) and axle (16). The arrows in the figure indicate the flow of the air through the system.
  • Wall fans (9) also work on a similar manner, where the fan (9) is driven by a motor (12) where the power from motor (12) is transmitted to blades (10) with the help of an axle (16) and the fan (9) is mounted on the wall (11) with the help of a mounting clamp (13) and the characteristics of the fan are controlled with the help of a control panel (14).
  • the blades (10) are usually enclosed in a cover (15) as a protection measure.
  • FIG 4 illustrates a few UV source devices with visualization from different angels, such as quartz lamp (18) with a conventional method of installation of a baten (19) on a holder and power for the same is supplied through electric wires (17).
  • quartz lamp (18) with a conventional method of installation of a baten (19) on a holder and power for the same is supplied through electric wires (17).
  • LED light emitting diode
  • 20) and LED strip (21) which work on the basis of light emitting diodes (22) are also meant to be used in a similar manner as disclosed.
  • These UV source devices are meant to release light of the ultraviolet range (between 100- 400nm specially UV-C between 200-280nm).
  • the power of the UV source device (measured in W ⁇ watt ⁇ ) can vary as per the needs of the user.
  • UV source devices are available that can generate ultraviolet range of electromagnetic radiation, such as LED, Quartz, Low pressure mercury lamp, Excimer Lamp, Pulsed Xenon Lamp, etc. and all such devices even if invented in future can be easily used in a similar manner as disclosed in this application and is/are within the scope of this disclosure.
  • the main effect of ultraviolet electromagnetic radiation on biological systems works by two methods, (i) it produces a large number of free radicals that destabilize macromolecules and (ii) it is absorbed by the DNA molecules in the cells of microorganisms and cause alterations that damage the microorganism.
  • Short wavelength rays such as UV
  • -OH free radicals
  • free radicals lack an electron and attack other molecules such as cell proteins or DNA to absorb their electron.
  • Many free radicals may retrieve electrons from the same large cell molecule and cause changes in the molecule hence making the microorganism disabled.
  • UV radiation exposing the air to ultraviolet electromagnetic radiation disinfects the air stream from any microorganisms/pathogens present in the same.
  • this method has additional benefits like reduction of odour from air due to exposure to UV radiation.
  • UV light interacts with water molecules in the air to produce free radicals (O- and -OH), these free radicals go on to oxidize the complex molecules found in the air and as an outcome, the end result is a sequential and instantaneous gas breakdown, which eliminates the odour causing molecules from air.
  • this method is also effective in increasing the ambience of the surrounding.
  • UV light protects the exposed fan parts from mold formation by eliminating the mold forming microorganisms.
  • Figure 5 visualizes a UV source device (23) placed blades (2) of a fan (1).
  • Figure 6 visualizes a UV source device (24) installed with the help of a bracket (25) and a UV source device (26) placed on the system.
  • the UV source device is placed in the system such that the air is exposed to the UV radiation.
  • the UV source device (23) also, referred as a first UV source device
  • the UV source device (23) is placed/arranged on inner portions of the blades (2) such that the UV radiation emanating from the UV source device (23) is directed towards the ceiling (3).
  • the UV source device (24) (also, referred as a second UV source device) is installed/arranged with the help of a bracket (25) which is fixed on the ceiling (3).
  • the UV source device (24) is placed/arranged help of a bracket (25) such that the UV radiation emanating from the UV source device (24) is directed towards the ceiling (3).
  • the UV source device (26) (also, referred as a third UV source device) is placed near the canopy (6).
  • the sole purpose of the placement of the UV source device is to expose the flowing airstream to UV radiation. Also, since the UV source device is placed such that the rays travel towards the ceiling, it will also eliminate the risk of unwanted exposure to UV rays.
  • Figure 7 visualizes a UV source device (27) (28) installed in a wall fan (9).
  • the air flow is created with the help of blades (10).
  • the UV source device is placed in the system such that the air is exposed to the UV radiation.
  • the UV source device (27) also, referred as a fourth UV source device
  • the UV source device (27) is placed/arranged on inner portions of the blades (10) such that the UV radiation emanating from the UV source device (27) is directed towards the wall (11) on which the wall fan (9) is mounted.
  • the UV source device (28) (also, referred as a fifth UV source device) is placed on the cover (15).
  • the UV source device (28) is placed/arranged on the cover (15) such that the UV radiation emanating from the UV source device (28) is directed towards the wall (11) on which the wall fan (9) is mounted.
  • the sole purpose of the placement of the UV source device is to expose the flowing airstream to UV radiation. Also, since the UV source device is placed such that the rays travel towards the wall, it will also eliminate the risk of unwanted exposure to UV rays.
  • FIG. 8 illustrates a brief flowchart of the working method of this disclosure. Also, since the UV source device is placed such that the rays travel towards the wall/ceiling, it eliminates the risk of unnecessary leakage/escape of UV rays which could lead to unwanted exposure to nearby people and surroundings.
  • photocatalyst materials such as titanium dioxide, strontium titanate, etc. can also be installed along with the UV source device in the system in order to enhance the performance of the UV source device by initiating the process of photocatalysis, which excites the UV light rays inbound/incident on the photocatalyst material, which consequently increases the amount of free radicals and hence increases the efficiency of the system.
  • a method of disinfecting air flowing through a fan comprises the steps of : Installation of UV source device in the system such that the UV source device provides exposure of UV light to air while the air circulates through the fan.
  • the air hence gets disinfected from microorganisms/pathogens by the effect of UV light.
  • the system for disinfecting air may comprise the fan and the at least one ultraviolet (UV) source device arranged on or near the fan to irradiate air flowing through the fan with UV light to eliminate microorganisms/pathogens present in the air.
  • UV ultraviolet
  • At least one UV source device may comprise Light- Emitting Diode (LED), Quartz, Low pressure mercury lamp, Excimer Lamp, Pulsed Xenon Lamp, etc. to generate an electromagnetic radiation with wavelength between 100nm and 400nm.
  • the at least one UV source device may be a water-proof and/or weather proof type of U V source device.
  • the fan is a ceiling fan or a wall fan.
  • a photocatalyst material may be arranged along with the at least one UV source device to initiate a process of photocatalysis for exciting the UV light inbound to/incident on the photocatalyst materials.
  • the at least one UV source device may be powered by a separate power source.

Landscapes

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

Abstract

La présente invention porte sur l'application d'un rayonnement électromagnétique ultraviolet (UV) lors de la désinfection de l'air circulant à travers des ventilateurs par installation d'un dispositif de source UV sur le ventilateur ou à proximité de celui-ci. Dans la présente invention, l'air circulant à travers le ventilateur est exposé à une lumière UV et la lumière UV élimine les micro-organismes et les pathogènes présents dans le flux d'air par endommagement de leur ADN/ARN et également par élimination automatique de l'odeur du flux d'air. La présente invention concerne également des procédés pour davantage améliorer l'efficacité du système à l'aide de substances de photocatalyseur dans le système. Par conséquent, la fourniture de l'installation permet d'éliminer les bactéries, les virus, les champignons, etc., présents dans l'air, ce qui permet de désinfecter le flux d'air circulant à travers le ventilateur.
PCT/IN2022/050011 2021-01-06 2022-01-06 Système de développement de propriétés germicides dans des ventilateurs par application d'une lumière ultraviolette WO2022149163A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202121000624 2021-01-06
IN202121000624 2021-01-06

Publications (1)

Publication Number Publication Date
WO2022149163A1 true WO2022149163A1 (fr) 2022-07-14

Family

ID=82358073

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2022/050011 WO2022149163A1 (fr) 2021-01-06 2022-01-06 Système de développement de propriétés germicides dans des ventilateurs par application d'une lumière ultraviolette

Country Status (1)

Country Link
WO (1) WO2022149163A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242971A (ja) * 2003-02-17 2004-09-02 Amami:Kk 空気清浄装置及び空気清浄用の羽根体
CN112032106A (zh) * 2020-08-06 2020-12-04 洪文振 杀菌叶片及包含杀菌叶片的风扇

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004242971A (ja) * 2003-02-17 2004-09-02 Amami:Kk 空気清浄装置及び空気清浄用の羽根体
CN112032106A (zh) * 2020-08-06 2020-12-04 洪文振 杀菌叶片及包含杀菌叶片的风扇

Similar Documents

Publication Publication Date Title
First et al. Guidelines for the application of upper-room ultraviolet germicidal irradiation for preventing transmission of airborne contagion-Part I: basic principles
US7988923B2 (en) Device, system and method for an advanced oxidation process using photohydroionization
KR20190061183A (ko) 자외선과 플라즈마를 이용한 공기살균기가 적용된 엘리베이터
US20200038542A1 (en) Method for economically disinfecting air using light fixtures
US20090098014A1 (en) Structure and Method of Air Purification
KR100894823B1 (ko) 자외선 ｕｖ램프를 이용한 덕트의 공기정화장치
JP6165177B2 (ja) 空気処理システム
KR102014759B1 (ko) 차량용 공조장치
CN109589441B (zh) 用于使用光氢离子化的高级氧化过程的设备、系统和方法
WO2018093837A1 (fr) Dispositif germicide à air
US20050163652A1 (en) Low level ultraviolet disinfecting system
WO2006023749A2 (fr) Appareil d'epuration d'air
KR102250587B1 (ko) 살균 모듈 및 그를 포함하는 홈 어플라이언스
US20180147312A1 (en) Ventilation Duct to Eradicate Indoor Odor and Microbes
KR101356268B1 (ko) 자외선 공기 살균기
KR102191577B1 (ko) 살균 장치 및 그를 포함하는 홈 어플라이언스
US20050163653A1 (en) Low level ultraviolet disinfecting system
KR200438456Y1 (ko) 자외선램프를 이용한 기능성 냉난방기의 형광조명 송풍장치
WO2022149163A1 (fr) Système de développement de propriétés germicides dans des ventilateurs par application d'une lumière ultraviolette
KR20190001052A (ko) 증발기 코어 살균장치
WO2022130400A1 (fr) Système de développement de propriétés germicides dans des unités de climatisation par installation externe d'un dispositif de source d'ultraviolets
JP2021171621A5 (fr)
WO2022130401A1 (fr) Système de développement de propriétés germicides dans des unités de climatisation par l'application de lumière ultraviolette
WO2022144922A1 (fr) Système de génération de propriétés germicides dans des systèmes de climatisation dans des véhicules à l'aide d'une lumière ultraviolette
KR200367428Y1 (ko) 살균 탈취 맨홀 덮개

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: 22736724

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22736724

Country of ref document: EP

Kind code of ref document: A1