WO2022197258A1 - Anti-microbial air treatment system - Google Patents

Anti-microbial air treatment system Download PDF

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Publication number
WO2022197258A1
WO2022197258A1 PCT/TR2021/050238 TR2021050238W WO2022197258A1 WO 2022197258 A1 WO2022197258 A1 WO 2022197258A1 TR 2021050238 W TR2021050238 W TR 2021050238W WO 2022197258 A1 WO2022197258 A1 WO 2022197258A1
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WO
WIPO (PCT)
Prior art keywords
air
microbial
bio
line
aerosol
Prior art date
Application number
PCT/TR2021/050238
Other languages
French (fr)
Inventor
Goksu KENANOGLU
Azem Yilmaz ISBECER
Original Assignee
Demaksan Ic Ve Dis Ticaret Limited Sirketi
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 Demaksan Ic Ve Dis Ticaret Limited Sirketi filed Critical Demaksan Ic Ve Dis Ticaret Limited Sirketi
Priority to PCT/TR2021/050238 priority Critical patent/WO2022197258A1/en
Publication of WO2022197258A1 publication Critical patent/WO2022197258A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means

Definitions

  • the disclosed invention is related to an anti-microbial air treatment unit which allows capture and elimination of bio-aerosols in interior space air, which living creatures need to survive, during air passage through air treatment system and ensures clean air continues through the system.
  • the subject of the disclosed invention is related to an anti-microbial air treatment unit which eliminates foreign materials in the form of particles in various sizes which might be hazardous to human health and harmful micro organisms, allowing clean air to pass through the system and continue on.
  • HEPA filters are a type of felt composition comprised of randomly arranged fibres. These fibres generally consist of fibreglass with a diameter ranging between 0.5 pm and 2 pm. The main factors affecting capture function of filters is the fibre diameter, fibre thickness and absorption rate.
  • the air gap between HEPA filter fibres is generally larger than 0.3 pm. The said gap being larger than 0.3 pm has led to the widespread and wrong supposition that particles smaller than the largest gap between HEPA filter fibres will freely move through the filter and thus the filter will act as a sieve.
  • HEPA filters are designed to capture smaller pollutants and particles.
  • the said small sized particles or pollutants are captured by the help of a combination of three capture mechanisms: The first of these mechanisms is the capture effect, which is defined as the particulate capture mechanism of the filters.
  • the second capture mechanism is the inertia effect. Following the curved flow lines generated by air flow, particulates move around the fibres to continue on their way. However, some particles dragged in the flow cannot succeed in moving around the fibres due to their inertia. They cannot avoid the fibres and impact the fibre surface and get captured on the fibre. This effect grows as the fibre diameter decreases, air flow rate increases and particle diameter increases.
  • the last capture mechanism is the diffusion effect.
  • particles with a diameter under 0.1 pm come into collision with gas molecules they start to move in a very irregular pattern. This blocks their passage through the filter and delays their delivery. Referred to as Brownian motion of gas particles, this behaviour allows the particles impacting fibres to adhere onto the fibres. This effect grows as the air flow rate, particle diameter and fibre diameter decreases.
  • HVAC systems might not always be compliant with applicable standards even if it successfully passes performance tests.
  • equipment used in HVAC systems may end up unhygienic due to the HVAC station not being a hygienic type unit, use of equipment requiring maintenance in the sterile area, or use of equipment which cannot be easily and fully cleaned.
  • HVAC systems fail to maintain their hygiene effectiveness through the year due to various reasons like reversal of positive pressure, decreasing air exchange rates, etc.
  • replacement of HEPA filters requires a process which necessitates special precautions. Due to the harmful microorganism load they carry, replacement of HEPA filters involve costly and care-intensive handling requirements like special apparatuses and full personal protection equipment for the maintenance personnel. The limited useful life of this type of filters also necessitates their replacement in periods of 2 to 3 months. Therefore, these conditions result in costs.
  • HEPA filter systems have high cost, their use is generally limited to certain areas by preference.
  • HEPA filter systems are widely used in environments requiring high levels of sterilisation like hospitals and surgery theatres, they are generally not used in environments occupied by large numbers of people like stores, schools and shopping malls due to their high cost.
  • UV air disinfection devices Another type of air treatment device is UV air disinfection devices.
  • the working principle of these devices is the UV lamp found it these devices radiating ultraviolet rays to disrupt and neutralise cell structures of microorganisms like bacteria, viruses and fungi.
  • these systems also have disadvantages.
  • UV light can only disinfect surfaces it directly faces is chief among these disadvantages. UV light is only effective on surfaces it directly radiates on. It cannot pass glass and it is not effective on surfaces which remain under shade or which are illuminated by reflected light. This decreases effectiveness of UV devices in practical application.
  • UV air disinfection devices must be able to face all surfaces in order to be effective, but in the current state of the art only areas covered by the radiation range of the light can be disinfected.
  • UV light also disrupts cell structures of all creatures. Therefore its use requires high levels of care. Harmful effects of UV light are much stronger than that of sunlight and can cause reactions on the skin similar to sunburn. Therefore it must be ensured that people are not present in spaces where devices with UV lights are operated. In addition, exposure to UV light can also harm retina and prolonged exposure may result in cataract, skin cancer and blindness.
  • UV air disinfection devices requires care in regard of safety, particularly in regard of protection from and/or safety against radiation from reflective surfaces.
  • UV lamp integrated into a filter system. Due to the immediate and rapid passage of air some microorganisms can survive in the passing air. The immediate anti-microbial effect of a UV air disinfection device remains insufficient since the inactivation dosage varies for each organism. In order to achieve full effect with a UV lamp on passing air the air must be passed through a large chamber comprising a large number of UV lamps. This, in turn, results in requirement of a large cost and energy consumption. Since UV output of some devices on the market are not compliant with the applicable standards, even described function of devices marketed as UV emitting cannot be guaranteed.
  • UV lamps Due to the limited useful life of UV lamps these devices lose their anti-microbial potential even though they continue to emit black-light after a certain period of time. In systems using such lamps it should be questioned how many hours the UV lamps provide light with micro-biocidal effect and lamps should be replaced and registered with appropriate intervals.
  • the power, potency and contact time of a UV lamp are important to ensure the UV lamp can achieve disinfection. When the useful life of a UV lamp is expired it should be replaced, which results in increased cost of use.
  • the problems detailed above necessitates R&D studies regarding air treatment systems.
  • the disclosed invention is related to an anti-microbial air treatment unit which allows capture and elimination of bio-aerosols in interior space air, which living creatures need to survive, during air passage through air treatment system and ensures clean air continues through the system.
  • the most important purpose of the disclosed invention is to capture and destroy bio-aerosols (harmful microorganisms) in the air in environments with a high number of people like hospitals, school, cafes, stores, markets, shopping malls, sports halls, mass transport and even residential spaces.
  • bio-aerosols harmful microorganisms
  • the purpose of the disclosed invention is to fully treat and recycle internal space air rather than constantly taking in external fresh air in order to decrease heating or cooling costs.
  • Another purpose of the disclosed invention is to provide an anti-microbial air treatment unit which can be produced in various scales from the smallest to the largest for various environments from homes to stores, from school to hospitals, allowing production to meet capacity needs of any size of environment.
  • the disclosed invention is based on the principle of capturing and destroying the bio-aerosols found in the air in a closed space.
  • the anti-microbial air treatment unit (1) subject to the disclosed invention comprises an intake line (2) a bio aerosol sanitation line (3) and an outlet line (4), as shown on Image - 1.
  • the said intake line (2) comprises an air intake (2.1) through which air enters the air treatment unit (1) and a rough filter (2.2) wherein the air taken into the system is cleansed of off dust and pollutants.
  • the rough filter (2.2) captures pollutants with large particles like pollen and dust, and removes pollution that might accumulate in the system in the further treatment stages. This stage prevents generation of potential and unwanted load.
  • the air passed through the rough filter (2.2) reaches the bio-aerosol sanitation line (3).
  • the diameter of the bio aerosol sanitation line is made larger in comparison to the intake line (2) and the outlet line (4). Due to this enlargement the capacity of this unit is increased and the air flow rate in the system is decreased. Therefore it is ensured the air inside the system spends more time in the bio-aerosol sanitation line (3) and contacts a larger surface area during this time. This way, full performance is ensured in the bio-aerosol elimination process in the bio-aerosol sanitation line (3).
  • the inside of the bio-aerosol sanitation line (3) is coated with a specific anti- microbial barrier.
  • the said anti-microbial barrier preferably consists of a biocidal anti-microbial molecular barrier (BAMB) solution.
  • BAMB biocidal anti-microbial molecular barrier
  • the working principle of the said barrier is destruction of microorganisms by its property of immediate disintegration of any type of microorganism coming into contact with the coated area. Therefore all microorganisms impacting this area are killed.
  • the bio-aerosol sanitation line (3) comprises a nozzle system (3.1), a disinfection solution container (3.2), air traps (3.3) and an air/liquid separator safety filter (3.4). The air passing through the rough filter (2.2) reaches the liquid nozzle system in the bio-aerosol sanitation line (3).
  • the content of the disinfection solution container (3.2) located at the lower part of the anti-microbial air treatment unit (1) is pumped upwards through the nozzle system (3.1) with a very strong pulverising effect and made into a mist. This way a mist curtain is formed over the nozzle system (3.1).
  • the microorganisms in the air are coated with fine disinfectant droplets. This allows capture of some of the microorganisms in the air. It is not possible to capture all the organisms with the nozzle system (3.1) which acts as the first stage of the bio-aerosol sanitation line (3). Any microorganisms which escape the nozzle system (3.1) are captured in a second stage.
  • the air After passing through the nozzle system (3.1) the air is passed through the bio-aerosol sanitation line (3) coated in an anti-microbial barrier and impacts air traps (3.3).
  • the air traps (3.3) are positioned on the air passageways and change the air flow path by impacting the passing air, thus increasing the probability of bio-aerosols in the air impacting the anti-microbial barrier by creating air circulation in the air passageways. The entirety of this area where air is impacted is coated with the anti-microbial barrier.
  • the surface area of the said air traps (3.3) is increased, and thus the air passing through the system comes into more contact with the air traps (3.3) coated with the anti-microbial barrier, spending more time in this area.
  • the air/liquid separator safety filter (3.4) is positioned over the air traps (3.3).
  • the air-liquid separator safety filter (3.4) ensures that the disinfection solution which might mix into the air during nozzle/misting stage is separated from the air and prevents release of any chemicals out of the system.
  • the microorganisms which are captured in in the disinfectant droplets in the misting stage are captured in the air/liquid separator safety filter (3.4) upon reaching this filter, being prevented from escaping out of the system and diverted to the disinfectant solution container (3.2) as the lowest part of the system, being disintegrated and killed in this solution.
  • a sensor located in the disinfectant solution container (3.2) monitors the disinfectant solution amount and the amount of microorganisms in the solution and thus facilitate replacement of the disinfectant solution by an automated circulation system or a manual system.
  • the dirty air collected from the internal space is treated by the elements in the intake line (2) and the bio-aerosol sanitation line (3) as detailed above.
  • the treated air is returned to the internal space through the ait outlet (4.1) on the outlet line (4).
  • the nozzle system (3.1), air traps (3.2) and the air/liquid separator safety filter (3.4) in the bio-aerosol sanitation line of the anti-microbial air treatment unit (1) can be used in multiple unit configurations, as well as in multi-position or single positions layouts.
  • the nozzle system (3.1) and the air traps (3.3) can be reused by repetition, and their numbers can be increased or decreased accordingly. This way the anti-microbial air treatment unit (1) can be made to perform its function more effectively.
  • the anti-microbial air treatment unit (1) subject to the disclosed invention can be produced in various scales according to the size of the intended service site and the amount of air volume targeted for treatment. It allows scaled design according to desire for all closed spaces from smallest to largest sites of use. According to the amount of air volume targeted for treatment the numbers of the nozzle system (3.1) and the air traps (3.3) can be increased to strengthen the system. In case these specifications are not sufficient, multiple maximum capacity anti-microbial air treatment units (1) can be serially added to the system to treat the internal space air for even larger sites of use. Rather than continuously taking in external fresh air as seen in heating and cooling systems in the current state of the art, the internal space air is fully treated and cost of reheating or re-cooling is decreased.
  • the system can also be used as a portable unit.
  • air suction is created by a pump placed on the intake line (2) or the outlet line (4).
  • the system can also be mounted on air conditioning systems.

Abstract

The disclosed invention is related to an anti-microbial air treatment unit which allows capture and elimination of bio-aerosols in interior space air, which living creatures need to survive, during air passage through air treatment system and ensures clean air continues through the system. The subject of the disclosed invention is related to an anti-microbial air treatment unit which eliminates foreign materials in the form of particles in various sizes which might be hazardous to human health and harmful micro¬ organisms, allowing clean air to pass through the system and continue on.

Description

ANTI-MICROBIAL AIR TREATMENT SYSTEM
Technical Field of the Invention
The disclosed invention is related to an anti-microbial air treatment unit which allows capture and elimination of bio-aerosols in interior space air, which living creatures need to survive, during air passage through air treatment system and ensures clean air continues through the system.
The subject of the disclosed invention is related to an anti-microbial air treatment unit which eliminates foreign materials in the form of particles in various sizes which might be hazardous to human health and harmful micro organisms, allowing clean air to pass through the system and continue on.
Previous Art
Today, appliances with HEPA filters and UV air disinfection devices are used in HVAC systems utilised to ensure closed space air remains clean and purified of off bio-aerosols. HEPA filters are a type of felt composition comprised of randomly arranged fibres. These fibres generally consist of fibreglass with a diameter ranging between 0.5 pm and 2 pm. The main factors affecting capture function of filters is the fibre diameter, fibre thickness and absorption rate. The air gap between HEPA filter fibres is generally larger than 0.3 pm. The said gap being larger than 0.3 pm has led to the widespread and wrong supposition that particles smaller than the largest gap between HEPA filter fibres will freely move through the filter and thus the filter will act as a sieve. Despite this wrong supposition, unlike the membrane type filters where particles as large as the largest gap or opening between the fibres cannot pass through, HEPA filters are designed to capture smaller pollutants and particles. The said small sized particles or pollutants are captured by the help of a combination of three capture mechanisms: The first of these mechanisms is the capture effect, which is defined as the particulate capture mechanism of the filters.
The second capture mechanism is the inertia effect. Following the curved flow lines generated by air flow, particulates move around the fibres to continue on their way. However, some particles dragged in the flow cannot succeed in moving around the fibres due to their inertia. They cannot avoid the fibres and impact the fibre surface and get captured on the fibre. This effect grows as the fibre diameter decreases, air flow rate increases and particle diameter increases.
The last capture mechanism is the diffusion effect. When particles with a diameter under 0.1 pm come into collision with gas molecules they start to move in a very irregular pattern. This blocks their passage through the filter and delays their delivery. Referred to as Brownian motion of gas particles, this behaviour allows the particles impacting fibres to adhere onto the fibres. This effect grows as the air flow rate, particle diameter and fibre diameter decreases.
A HEPA filter system might not always be compliant with applicable standards even if it successfully passes performance tests. Similarly, equipment used in HVAC systems may end up unhygienic due to the HVAC station not being a hygienic type unit, use of equipment requiring maintenance in the sterile area, or use of equipment which cannot be easily and fully cleaned.
Unless necessary measures are taken, HVAC systems fail to maintain their hygiene effectiveness through the year due to various reasons like reversal of positive pressure, decreasing air exchange rates, etc. In addition, replacement of HEPA filters requires a process which necessitates special precautions. Due to the harmful microorganism load they carry, replacement of HEPA filters involve costly and care-intensive handling requirements like special apparatuses and full personal protection equipment for the maintenance personnel. The limited useful life of this type of filters also necessitates their replacement in periods of 2 to 3 months. Therefore, these conditions result in costs.
Furthermore, in today's Covid-19 pandemic environment, internal space air is not reused and external air is directly supplied through HEPA filter systems. The air passed through HEPA filter system is heated or cooled before use. Therefore, this brings an additional energy cost. In addition, since HEPA filter systems have high cost, their use is generally limited to certain areas by preference. In fact, while HEPA filter systems are widely used in environments requiring high levels of sterilisation like hospitals and surgery theatres, they are generally not used in environments occupied by large numbers of people like stores, schools and shopping malls due to their high cost.
Another type of air treatment device is UV air disinfection devices. The working principle of these devices is the UV lamp found it these devices radiating ultraviolet rays to disrupt and neutralise cell structures of microorganisms like bacteria, viruses and fungi. However, these systems also have disadvantages. The fact that UV light can only disinfect surfaces it directly faces is chief among these disadvantages. UV light is only effective on surfaces it directly radiates on. It cannot pass glass and it is not effective on surfaces which remain under shade or which are illuminated by reflected light. This decreases effectiveness of UV devices in practical application. UV air disinfection devices must be able to face all surfaces in order to be effective, but in the current state of the art only areas covered by the radiation range of the light can be disinfected. Furthermore, in addition to affecting and destroying cell structures of microorganisms, UV light also disrupts cell structures of all creatures. Therefore its use requires high levels of care. Harmful effects of UV light are much stronger than that of sunlight and can cause reactions on the skin similar to sunburn. Therefore it must be ensured that people are not present in spaces where devices with UV lights are operated. In addition, exposure to UV light can also harm retina and prolonged exposure may result in cataract, skin cancer and blindness.
Use of UV air disinfection devices requires care in regard of safety, particularly in regard of protection from and/or safety against radiation from reflective surfaces.
Personal protection equipment must always be worn due to the risk of exposure of skin or eyes to UV light. Furthermore, it is not possible to ensure full bio aerosol disinfection using a UV lamp integrated into a filter system. Due to the immediate and rapid passage of air some microorganisms can survive in the passing air. The immediate anti-microbial effect of a UV air disinfection device remains insufficient since the inactivation dosage varies for each organism. In order to achieve full effect with a UV lamp on passing air the air must be passed through a large chamber comprising a large number of UV lamps. This, in turn, results in requirement of a large cost and energy consumption. Since UV output of some devices on the market are not compliant with the applicable standards, even described function of devices marketed as UV emitting cannot be guaranteed. Due to the limited useful life of UV lamps these devices lose their anti-microbial potential even though they continue to emit black-light after a certain period of time. In systems using such lamps it should be questioned how many hours the UV lamps provide light with micro-biocidal effect and lamps should be replaced and registered with appropriate intervals. The power, potency and contact time of a UV lamp are important to ensure the UV lamp can achieve disinfection. When the useful life of a UV lamp is expired it should be replaced, which results in increased cost of use. The problems detailed above necessitates R&D studies regarding air treatment systems.
Purpose of the Invention
The disclosed invention is related to an anti-microbial air treatment unit which allows capture and elimination of bio-aerosols in interior space air, which living creatures need to survive, during air passage through air treatment system and ensures clean air continues through the system.
The most important purpose of the disclosed invention is to capture and destroy bio-aerosols (harmful microorganisms) in the air in environments with a high number of people like hospitals, school, cafes, stores, markets, shopping malls, sports halls, mass transport and even residential spaces.
The purpose of the disclosed invention is to fully treat and recycle internal space air rather than constantly taking in external fresh air in order to decrease heating or cooling costs.
Another purpose of the disclosed invention is to provide an anti-microbial air treatment unit which can be produced in various scales from the smallest to the largest for various environments from homes to stores, from school to hospitals, allowing production to meet capacity needs of any size of environment. Detailed Description of the Invention:
Definition of Images:
Image - 1 Anti-microbial air treatment unit front perspective cross-section view Reference Numbers:
1. Anti-microbial air treatment unit
2. Intake line
2.1. Air intake
2.2. Rough filter
3. Bio-aerosol sanitation line
3.1. Nozzle system
3.2. Disinfection solution container
3.3. Air traps
3.4. Air/Liquid separator safety filter
4. Outlet line 4.1. Air outlet
The disclosed invention can be better understood when explained by reference to the numbers listed above and the enclosed image.
The disclosed invention is based on the principle of capturing and destroying the bio-aerosols found in the air in a closed space. The anti-microbial air treatment unit (1) subject to the disclosed invention comprises an intake line (2) a bio aerosol sanitation line (3) and an outlet line (4), as shown on Image - 1. The said intake line (2) comprises an air intake (2.1) through which air enters the air treatment unit (1) and a rough filter (2.2) wherein the air taken into the system is cleansed of off dust and pollutants. The rough filter (2.2) captures pollutants with large particles like pollen and dust, and removes pollution that might accumulate in the system in the further treatment stages. This stage prevents generation of potential and unwanted load. The air passed through the rough filter (2.2) reaches the bio-aerosol sanitation line (3). The diameter of the bio aerosol sanitation line is made larger in comparison to the intake line (2) and the outlet line (4). Due to this enlargement the capacity of this unit is increased and the air flow rate in the system is decreased. Therefore it is ensured the air inside the system spends more time in the bio-aerosol sanitation line (3) and contacts a larger surface area during this time. This way, full performance is ensured in the bio-aerosol elimination process in the bio-aerosol sanitation line (3).
The inside of the bio-aerosol sanitation line (3) is coated with a specific anti- microbial barrier. The said anti-microbial barrier preferably consists of a biocidal anti-microbial molecular barrier (BAMB) solution. The working principle of the said barrier is destruction of microorganisms by its property of immediate disintegration of any type of microorganism coming into contact with the coated area. Therefore all microorganisms impacting this area are killed. As shown on Image-1, the bio-aerosol sanitation line (3) comprises a nozzle system (3.1), a disinfection solution container (3.2), air traps (3.3) and an air/liquid separator safety filter (3.4). The air passing through the rough filter (2.2) reaches the liquid nozzle system in the bio-aerosol sanitation line (3). The content of the disinfection solution container (3.2) located at the lower part of the anti-microbial air treatment unit (1) is pumped upwards through the nozzle system (3.1) with a very strong pulverising effect and made into a mist. This way a mist curtain is formed over the nozzle system (3.1). With action of the nozzle system (3.1) the microorganisms in the air are coated with fine disinfectant droplets. This allows capture of some of the microorganisms in the air. It is not possible to capture all the organisms with the nozzle system (3.1) which acts as the first stage of the bio-aerosol sanitation line (3). Any microorganisms which escape the nozzle system (3.1) are captured in a second stage. After passing through the nozzle system (3.1) the air is passed through the bio-aerosol sanitation line (3) coated in an anti-microbial barrier and impacts air traps (3.3). The air traps (3.3) are positioned on the air passageways and change the air flow path by impacting the passing air, thus increasing the probability of bio-aerosols in the air impacting the anti-microbial barrier by creating air circulation in the air passageways. The entirety of this area where air is impacted is coated with the anti-microbial barrier. By increasing the diameter of the bio-aerosol sanitation line (3) the surface area of the said air traps (3.3) is increased, and thus the air passing through the system comes into more contact with the air traps (3.3) coated with the anti-microbial barrier, spending more time in this area. In result, the microorganisms in the air impact the air traps (3.3) coated with the anti microbial barrier and die. The air/liquid separator safety filter (3.4) is positioned over the air traps (3.3). The air-liquid separator safety filter (3.4) ensures that the disinfection solution which might mix into the air during nozzle/misting stage is separated from the air and prevents release of any chemicals out of the system. At the same time, the microorganisms which are captured in in the disinfectant droplets in the misting stage are captured in the air/liquid separator safety filter (3.4) upon reaching this filter, being prevented from escaping out of the system and diverted to the disinfectant solution container (3.2) as the lowest part of the system, being disintegrated and killed in this solution. According to an embodiment of the invention a sensor located in the disinfectant solution container (3.2) monitors the disinfectant solution amount and the amount of microorganisms in the solution and thus facilitate replacement of the disinfectant solution by an automated circulation system or a manual system.
The dirty air collected from the internal space is treated by the elements in the intake line (2) and the bio-aerosol sanitation line (3) as detailed above. The treated air is returned to the internal space through the ait outlet (4.1) on the outlet line (4).
The nozzle system (3.1), air traps (3.2) and the air/liquid separator safety filter (3.4) in the bio-aerosol sanitation line of the anti-microbial air treatment unit (1) can be used in multiple unit configurations, as well as in multi-position or single positions layouts. The nozzle system (3.1) and the air traps (3.3) can be reused by repetition, and their numbers can be increased or decreased accordingly. This way the anti-microbial air treatment unit (1) can be made to perform its function more effectively.
The anti-microbial air treatment unit (1) subject to the disclosed invention can be produced in various scales according to the size of the intended service site and the amount of air volume targeted for treatment. It allows scaled design according to desire for all closed spaces from smallest to largest sites of use. According to the amount of air volume targeted for treatment the numbers of the nozzle system (3.1) and the air traps (3.3) can be increased to strengthen the system. In case these specifications are not sufficient, multiple maximum capacity anti-microbial air treatment units (1) can be serially added to the system to treat the internal space air for even larger sites of use. Rather than continuously taking in external fresh air as seen in heating and cooling systems in the current state of the art, the internal space air is fully treated and cost of reheating or re-cooling is decreased.
According to an embodiment of the invention the system can also be used as a portable unit. In this embodiment designed on a smaller scale air suction is created by a pump placed on the intake line (2) or the outlet line (4).
According to another embodiment of the invention, the system can also be mounted on air conditioning systems.

Claims

1. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms, characterised by comprising; a. At least one intake line (2); b. At least one rough filter (2.2) positioned on the said intake line (2) used to capture large particles; c. At least one bio-aerosol sanitation line (3) starting at the end of the said intake line (2); d. At least one anti-microbial barrier coated disinfectant solution container (3.2), at least one anti-microbial barrier coated air trap (3.3) and at least one anti-microbial barrier coated nozzle system (3.1) positioned on the said bio-aerosol sanitation line (3); and e. At least one outlet line (4) positioned at the end of the said bio aerosol sanitation line.
2. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; the diameter of the said bio-aerosol sanitation line (3) being larger than the diameter of the said intake line (2) and the said outlet line (4).
3. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; comprising at least one pump to provide air suction/thrust on the said intake line (2) and/or outlet line (4).
4. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; comprising at least one sensor positioned in the said disinfectant solution container (3.2) in order to measure the amount of solution therein.
5. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; comprising at least one sensor positioned in the said disinfectant solution container (3.2) in order to measure the amount of bio-aerosol therein.
6. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; comprising at least one barrier on the said air trap (3.3) in order to have the air impact the barrier and change direction.
7. An anti-microbial air treatment system (1) cleansing internal space air from harmful microorganisms according to Claim-1, characterised by; comprising at least one anti-microbial barrier coated air/liquid separator safety filter (3.4) positioned on the said bio-aerosol sanitation line (3).
PCT/TR2021/050238 2021-03-16 2021-03-16 Anti-microbial air treatment system WO2022197258A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030067605A (en) * 2003-05-19 2003-08-14 (주)이에스오디 air purifer
GB2428380A (en) * 2005-02-22 2007-01-31 Robert Paul Pelham Air sterilisation apparatus
EP3081650A1 (en) * 2013-12-10 2016-10-19 Hyundai Motor Company Antimicrobial agent screening method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030067605A (en) * 2003-05-19 2003-08-14 (주)이에스오디 air purifer
GB2428380A (en) * 2005-02-22 2007-01-31 Robert Paul Pelham Air sterilisation apparatus
EP3081650A1 (en) * 2013-12-10 2016-10-19 Hyundai Motor Company Antimicrobial agent screening method

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