WO2021205478A1 - Procédé et dispositif pour la désinfection de surfaces et d'espaces couverts - Google Patents

Procédé et dispositif pour la désinfection de surfaces et d'espaces couverts Download PDF

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Publication number
WO2021205478A1
WO2021205478A1 PCT/IN2021/050355 IN2021050355W WO2021205478A1 WO 2021205478 A1 WO2021205478 A1 WO 2021205478A1 IN 2021050355 W IN2021050355 W IN 2021050355W WO 2021205478 A1 WO2021205478 A1 WO 2021205478A1
Authority
WO
WIPO (PCT)
Prior art keywords
high voltage
voltage generator
ionizer
disinfecting device
process controller
Prior art date
Application number
PCT/IN2021/050355
Other languages
English (en)
Inventor
Bhausaheb Bapurao JANJIRE
Original Assignee
Janjire Bhausaheb Bapurao
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 Janjire Bhausaheb Bapurao filed Critical Janjire Bhausaheb Bapurao
Publication of WO2021205478A1 publication Critical patent/WO2021205478A1/fr

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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
    • A61L2/14—Plasma, i.e. ionised gases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H01T19/04—Devices providing for corona discharge having pointed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • 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
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps

Definitions

  • the present invention relates to a device used for disinfection. More specifically, the present invention relates to a disinfecting device using a process of bipolar ionization.
  • Viral infections have been one of the major threats to human life.
  • the recent pandemic of corononavirus infection has made human life vulnerable to unknown risks.
  • Coronavirus belongs to a virus family, which are large pleomorphic spherical particles with bulbous surface projections. These kind of viruses contain RNA material shielded with a layer of protein. The layer of protein needs to be disintegrated in order to break the protective covering over the RNA material in the virus.
  • UV disinfection is based on absorption of UV radiation by, for example, micro-organisms. With rapid absorption of UV, the DNA and the RNA in a micro organism are damaged and hence, the microorganism can no longer reproduce.
  • UV disinfection technique which include estimation of appropriate amount of energy for the process to be effective on the microorganisms.
  • UV light eliminates microorganisms but not chemicals or other gases. It cannot be used in open areas and/or open surfaces rather it should always be used in closed areas, doing so it uses the access to the disinfection system at every moment.
  • disinfecting chemicals such as sodium hypochloride, soaps and sanitizer are used to kill the virus.
  • one has to spread the disinfecting chemicals on all objects to be disinfected.
  • it is practically impossible to spread the aqueous form of such disinfectants on objects such as printer, files, electronic gadgets and the eatables.
  • the existing techniques for treating micro-organisms have limitations.
  • the present invention discloses a disinfecting device for treating a contaminated surfaces/area.
  • the device includes a power section, a high voltage generator, an ionizer, a mixing chamber and a process controller.
  • the high voltage generator is coupled to the power section to produce one or more high voltage ranges required to generate bipolar ions.
  • the ionizer is coupled to the high voltage generator and is configured to ionize ambient air.
  • the mixing chamber houses the ionizer and includes an inlet opening and an outlet opening.
  • the process controller is configured to monitor and synchronize the other components.
  • the process controller is configured to decode an user input and fetch information regarding area to be disinfected, volume of ions to be generated, and time duration for which ionization is to take place from one or more predefined lookup tables with respect to the user input.
  • the process controller is also configured to instruct the high voltage generator to generate required voltage ranges, each voltage range corresponding to an ionization frequency required to ionize a category of molecules in the ambient air.
  • the one or more high voltage ranges having different frequencies generated by the high voltage generator are fed to the ionizer in the same cycle of operation producing bipolar ions with different ionization frequencies in one cycle of operation for disinfecting the contaminated surfaces/a rea.
  • FIG. 1 illustrates a circuit diagram of a device used for disinfection in accordance with an embodiment of the present invention.
  • FIG. 2 illustrates a process flow diagram of the device in accordance with an embodiment of the present invention.
  • interconnect with may mean to include, be included within, interconnect with, contain, be contained within, connect to or with, couple to or with, be communicable with, cooperate with, interleave, juxtapose, be proximate to, be bound to or with, have, have a property of, or the like;
  • the present invention discloses a disinfecting device that treats a contaminated surface/area for example, an object, a closed environment and the like.
  • the object includes without limitation an electronic gadget, an edible thing, etc.
  • treatment or sanitization of a surface or area refers to removing virus, bacteria, fungi etc from the surface or area using the teachings of the present invention.
  • the present invention uses a single energy source to ionize ambient air.
  • ambient air consists of a variety of particles/molecules having different ionization energies.
  • ambient air is a mixture of nitrogen, hydrogen, oxygen, moisture, and inert gases like carbon, helium, methane, argon, etc.
  • respective ionization voltages are needed. For instance, voltage required to convert nitrogen to ions is very high while voltage required to convert inert gases to ions is low while voltage required to ionize oxygen is in between the two voltage ranges.
  • Particles/molecules having similar ionization energy are ionized at one ionization voltage and bipolar ions are generated.
  • a single energy source generates multiple ionization voltages such that they cater to ionization energies of the variety of particles/molecules.
  • the single energy source ionizes the different molecules in the ambient air by generating respective ionization voltages.
  • ambient air largely includes moisture and oxygen molecules, upon ionization, ionized hydrogen and oxygen molecules along with unstable ozone molecules are generated.
  • bipolar ions of other constituents of ambient air like carbon, sulphur, sodium, chlorine, etc are generated.
  • ozone being a strong oxidizing compound rapidly oxidizes organic materials, iron, manganese and other substances, which makes it an extremely effective disinfectant against bacteria and viruses.
  • ionized hydrogen and oxygen molecules combine together and form highly reactive hydroxyl radicals. These free radicals form clusters and surround airborne viruses and/or other harmful substances such as fungi and allergens, which ultimately results in disintegration of the virus, fungi, etc.
  • the disinfecting device may be used in any closed environment such as offices, showrooms, schools, collages, gym, malls, factory, go downs and hospitals, etc.
  • the disinfecting device of the present invention is compact and user-friendly and hence, may be employed in any area to sanitize it with maximum efficiency.
  • the disinfecting device emits bipolar ions in the ambient air enclosed in any closed infected area.
  • the bipolar ions present in the ambient air are attracted to the oppositely charged ions present over the surface of the virus, bacteria, fungus, dust, pollen, moulds, etc.
  • Highly reactive bipolar ions react with the ions present on the surface of the virus leading to disintegration of an outer protein layer of the virus.
  • the disintegration of the outer layer exposes the RNA material of the virus, bacteria, fungus, dust, pollen, moulds, etc. and terminates the growth of the virus.
  • FIG.l illustrates a disinfecting device 100.
  • the disinfecting device 100 includes a power section 10, a high voltage generator 20, an inlet air booster 30, an ionizer 40, a mixing chamber 50, a process controller 60, and a housing 70.
  • the power section 10 is configured to provide power to the disinfectant device 100.
  • the power section 10 may be a direct power source or an alternate power source.
  • the power section 10 includes without limitation 110 V AC at 60 Hz, 220 V AC at 50 Hz or 12 /24/48/110 V.
  • the high voltage generator 20 is configured to produce one or more high voltage ranges required to generate bipolar ions.
  • the high voltage generator 20 draws its input from the power section 10.
  • the high voltage generator 20 is a high efficiency, high voltage, high frequency HT (high tension) voltage generator.
  • the high voltage generator 20 increases the amplitude of the energy required to boost the negative or the positive energy for electrons and protons respectively.
  • Examples of the high voltage generator 20 include a Bumien generator, or Marx generator, cascaded multilevel generator.
  • the high voltage generator 20 is coupled to a voltage multiplier.
  • the voltage produced by the high voltage generator 20 is fed to the voltage multiplier to generate a predefined range of voltages, each voltage range corresponding to the ionization frequency required to ionize a category of molecules in ambient air. It may generate an output voltage ranging between 5 kV to 100 kV.
  • the high voltage generator 20 may be a multi-tap high voltage generator that produces the predefined voltage ranges in the same cycle of operation.
  • the tap of the high voltage generator 20 may be coupled to an electronic device like IGBT (insulated-gate bipolar transistor), thyristor, MOSFET (metal-oxide-semiconductor field-effect transistor), etc. which is turned on/off by the process controller 60.
  • IGBT insulated-gate bipolar transistor
  • MOSFET metal-oxide-semiconductor field-effect transistor
  • the high voltage generator 20 may be equipped with a protection circuit to limit the output current internally and avoid the risk of shocks due to leakage current, thereby making its operation safe.
  • the inlet air booster 30 increases the pressure of pre-compressed surrounding air or low- pressure compressed air to the required level.
  • the inlet air booster 30 may include a built-in pressure regulator to adjust the maximum air discharge pressure. During operation, the inlet air booster 30 may provide a discharge pressure that is typically 2-10% lower than the maximum discharge pressure.
  • the inlet air booster 30 may be of oil-free, cast iron and steel construction or, plenum intake type. In an embodiment, the inlet air booster 30 has a plastic body.
  • the ionizer 40 is configured to ionize the ambient air.
  • the ionizer 40 includes one or more electrodes to ionize the ambient air, thereby producing bipolar ions.
  • the ionizer 40 may include an AC bipolar ion generator, a pulsed DC bipolar ion generator, a steady-state DC bipolar ion generator, or a nuclear bipolar ion generator.
  • the ionizer 40 is a DC ionizer.
  • the ionizer 40 produces the required amount of bipolar ions depending upon the area to be disinfected by the disinfecting device 100.
  • the ionizer 40 is connected to the output of the high voltage generator 20.
  • the mixing chamber 50 houses the ionizer 40 and includes one or more openings (or channels).
  • the mixing chamber 50 of the disinfecting device 100 includes two openings, an inlet opening 50a and an outlet opening 50b.
  • the openings 50a, 50b may be provided on either side of the mixing chamber 50.
  • the inlet opening 50a and the outlet opening 50b may be provided to enable airflow from the mixing chamber 50 to the surroundings.
  • the inlet opening 50a may be used to pass the surrounding/ambient air into the mixing chamber 50 while the outlet opening 50b may be used to pass the ions from the mixing chamber 50 to the surroundings.
  • the openings (50a, 50b) may be of a predefined shape and dimensions depending upon the area which is to be sanitized by the disinfecting device 100.
  • the mixing chamber 50 may be made of any predefined shape such as circular, rectangular, or square shape depending upon the area where it is to be installed.
  • the mixing chamber 50 is constructed of a durable material such as without limitation polymer, PVC (polyvinyl chloride), metal, glass, etc. Further, the size of the mixing chamber 50 may vary depending upon the area to be disinfected.
  • the inlet opening 50a is coupled to the inlet air booster 30. Further, the inlet opening 50a may be provided with at least one filter for filtering the air that is sucked by the inlet air booster 30.
  • the filter may be any air filter known in the art.
  • the filter may include without limitation, a paper filter, a FIEPA (High Efficiency Particulate Air) filter, or a dust filter.
  • the filter may include or multiple layers depending upon the application.
  • the filter includes a paper filter.
  • the filter may include an absorbent or catalyst such as charcoal (carbon). The catalyst may enhance the removal of odors and gaseous pollutants such as volatile organic compounds from the surrounding air.
  • the filter may be disposed on all the organic and/or inorganic substances.
  • the filter may be provided to remove solid particulates such as dust, pollen, mould, and bacteria from the air.
  • the process controller 60 is configured to monitor and synchronize every component of the disinfecting device 100. Synchronization includes switching on/off a component of the disinfecting device 100.
  • the process controller 60 may be for example, a 8 byte/ 16 byte/ 32 byte microcontroller with a memory.
  • the process controller 60 includes one or more lookup tables stored in the memory having mappings of two or more parameters including, area to be disinfected, volume of ions to be generated, time duration for which ionization is to take place, the suction speed of the inlet air booster, etc.
  • the process controller 60 further enables a user to configure or change settings with respect to pre-defined parameters including the surface area, on/off timming, schedule for sanitization, alarm settings and display warning, etc.
  • the process controller 60 controls the amplitude of the signals of the high voltage generator 20.
  • the process controller 60 further controls the activity of the ionizer 40 for example, the volume of ions to be generated on the basis of the area to be disinfected, the time duration for which the ionization is to take place to disinfect the area, etc.
  • the process controller 60 also selects the inlet opeaning 50a or outlet opening 50b of the mixing chamber 50 as required for the operation of the device 100.
  • the process controller 60 controls the inlet air booster 30 to push the correct volume of ambient air in the mixing chamber 50.
  • the process controller 60 may include without limitation a HMI (Human-Machine Interface), EMI (electromagnetic interference), and/or a surge protection in-built.
  • the housing 70 may be a structural unit used to accommodate all the aforesaid components of the disinfecting device 100.
  • the housing 70 may be made of any durable material such as without limitation, plastic, metal, PVC, or an acrylic body.
  • the housing 70 is made of steel.
  • the housing 70 may be of predetermined dimensions depending upon the different models and the application of the device 100.
  • FIG. 2 of the present invention discloses a process for disinfecting an area using the disinfecting device 100.
  • the process is commenced at step 310.
  • the power section 10 is switched on.
  • the power section 10 turns on the high voltage generator 20, the inlet air booster 30, the ionizer 40 and the process controller 60.
  • a user selects the area to be disinfected.
  • the user may be provided with an option to select the area to be disinfected by way of a switch that toggles between predefined positions with each position indicating an area to be sanitized.
  • an LCD may be provided with the housing 70 to enable a user to select the area to be sanitized.
  • Other implementations that allow a user to select an area to be sanitized are within the scope of the present invention.
  • the process controller 60 decodes the user inputs. The process controller 60 fetches the information regarding the time duration, the inlet air booster 30 speed and the volume of ions to be produced from the predefined lookup tables stored in the memory with respect to the dimensions entered by the user.
  • the process controller 60 instructs the high voltage generator 20 to generate required voltage ranges.
  • the voltage produced by the high voltage generator 20 is fed to the voltage multiplier to generate predefined one or more voltage ranges, each voltage range corresponding to the ionization frequency required to ionize a category of molecules in the ambient air. For example, if the ambient air contains five categories of molecules, five different predefined voltage ranges would be required to ionize molecules of respective category.
  • the predefined voltage ranges are provided in the lookup table stored in the memory of the process controller 60.
  • the high voltage generator 20 may be a multi-tap high voltage generator that produces the predefined voltage ranges in the same cycle of operation.
  • the tap of the high voltage generator is coupled to an electronic device like IGBT, thyristor, Mosfet, etc which is turned on/off by the process controller 60. Once the electronic device receives instructions from the process controller 60, it turns on the high voltage generator 20.
  • Other alternatives for generating predefined voltage ranges are within the scope and teachings of the present invention.
  • the process controller 60 turns on the inlet air booster 30 and controls its speed to direct the required amount of ambient air in the chamber 50 via the inlet opening 50a.
  • the process controller 60 switches on the electrodes of the ionizer 40 to initiate ionization of the molecules in the ambient air in the mixing chamber 50.
  • the process controller 60 switches on the electrodes of the ionizer 40 for the specified time duration as fetched from the lookup table to produce adequate amount of bipolar ions.
  • Variable high voltages having different frequencies generated by the high voltage generator 20 are fed to the ionizer 40 in the same cycle of operation producing bipolar ions with different ionization frequencies in one cycle of operation.
  • the bipolar ions produced in the chamber 50 are released into the surroundings through the outlet opening 50b of the chamber 50 at step 370. [0041] This process is repeated till the end of the the predefined period.
  • the released bipolar ions interact with the molecules in the ambient air and render the mircobes harmless by dissolving their outer layer.
  • the ionized hydrogen and oxygen molecules along with unstable ozone molecules that are generated due to ionization are used for disinfecting the surface.
  • the ionized hydrogen and oxygen molecules along with unstable ozone molecules are below an allowed limit (around 50 ppb) for disinfecting the surfaces.
  • the contaminated surface or area sanitized using the teachings of the present invention is around 99% free of virus, fungi, etc.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • 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)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

L'invention concerne un dispositif de désinfection pour le traitement de surfaces/de zone contaminées. Le dispositif de désinfection (100) comprend une section d'alimentation (10), un générateur haute tension (20) est couplée à la section d'alimentation (10) pour produire une ou plusieurs gamme(s) de haute tension requises pour générer des ions bipolaires, un ioniseur (40) couplé au générateur haute tension (20), une chambre de mélange (50) contenant l'ioniseur (40), et un dispositif de commande de processus (60). L'ioniseur (40) est conçu pour ioniser l'air ambiant. La chambre de mélange (50) comprend une ouverture d'entrée (50a) et une ouverture de sortie (50b). Lors du fonctionnement, ladite ou lesdites gamme(s) de haute tension a/ont des fréquences différentes générées par le générateur haute tension (20) sont alimentées à l'ioniseur (40) dans le même cycle de fonctionnement produisant des ions bipolaires avec différentes fréquences d'ionisation dans un cycle de fonctionnement pour désinfecter les surfaces/la zone contaminées.
PCT/IN2021/050355 2020-04-10 2021-04-09 Procédé et dispositif pour la désinfection de surfaces et d'espaces couverts WO2021205478A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN202021015691 2020-04-10
IN202021015691 2020-04-10

Publications (1)

Publication Number Publication Date
WO2021205478A1 true WO2021205478A1 (fr) 2021-10-14

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160263263A1 (en) * 2014-03-12 2016-09-15 Michael E. Robert Sanitizer
US10145094B2 (en) * 2016-04-28 2018-12-04 Lixil Corporation Sanitary apparatus with a hot air blower equipped with an ion generating device for disinfection, deodorization, or the like

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160263263A1 (en) * 2014-03-12 2016-09-15 Michael E. Robert Sanitizer
US10145094B2 (en) * 2016-04-28 2018-12-04 Lixil Corporation Sanitary apparatus with a hot air blower equipped with an ion generating device for disinfection, deodorization, or the like

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