AU2010361376A1 - Method for disinfecting air in air ducts - Google Patents

Method for disinfecting air in air ducts Download PDF

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Publication number
AU2010361376A1
AU2010361376A1 AU2010361376A AU2010361376A AU2010361376A1 AU 2010361376 A1 AU2010361376 A1 AU 2010361376A1 AU 2010361376 A AU2010361376 A AU 2010361376A AU 2010361376 A AU2010361376 A AU 2010361376A AU 2010361376 A1 AU2010361376 A1 AU 2010361376A1
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AU
Australia
Prior art keywords
air
disinfectant
injection
particles
supply duct
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
AU2010361376A
Inventor
Susanne Kocher-Kunz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kocher Kunz Susanne
Original Assignee
Kocher Kunz Susanne
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 Kocher Kunz Susanne filed Critical Kocher Kunz Susanne
Publication of AU2010361376A1 publication Critical patent/AU2010361376A1/en
Abandoned legal-status Critical Current

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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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/14—Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances including air-liquid contact processes
    • 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
    • A61L9/22—Ionisation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • 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
    • 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
    • A61L2209/16—Connections to a HVAC unit
    • 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
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/22—Cleaning ducts or apparatus
    • F24F2221/225—Cleaning ducts or apparatus using a liquid
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Central Air Conditioning (AREA)

Abstract

The invention relates to a method and a device for disinfecting the air of an air flow (2) inside an air supply duct (1) with a nontoxic disinfectant. The disinfectant is sprayed and injected in the injection direction (31) by means of at least one injection nozzle (30) of an injection device (3), the injection direction (31) approximately corresponding to the direction of the air flow (2). The injection in the region located after a contraction (12) in the duct and the related flow acceleration enables an absorption of the particles on the inner walls (100) of the air supply duct (1), over the entire length of the air supply duct (1).

Description

WO 2012/041362 Al METHOD FOR DISINFECTING AIR IN AIR DUCTS TECHNICAL FIELD The present invention describes a method for disinfecting the air of an air flow in an air supply duct, in particular of an air-conditioning system with a non-toxic disinfectant. PRIOR ART The closest prior art is EP0615603, which discloses a method and a device for disinfecting air in air supply ducts of an air-conditioning system. A non-toxic disinfectant is injected into an air supply duct counter to an air flow by means of an injection device. The non-toxic disinfectant used kills fungi, algae, bacteria and similar organisms and is not only effective in the air flow itself but, as it is deposited on the inner walls of the air supply duct, acts in the long term on the germs deposited on the inner walls, so they no longer pass into the air flow. The disclosed method describes the disinfection of the air in the region of the injection device. The particles of the disinfectant are injected into the air supply duct in the direction of the air flow and the particles are ionised by means of ionisation means. The injection counter to the air flow means that cloud formation around the injection nozzles results, some of the particles being thrown against the adjacent inner walls of the air supply duct in the vicinity of the injection device and being deposited there, preferably in a heaped manner.
- 2 Injected particles are electrically charged owing to the additional ionisation of the particles by ionisation means and, because the air supply duct is earthed, conducted rapidly in the direction of the inner wall of the air supply duct. The ionised particles are thereby deposited onto the inner walls of the air supply duct in the region of the injection nozzle shortly after exiting and therefore do not move around in the air supply duct. A disinfection, which is locally limited to the site of the injection, of the air thus takes place in the region of the injection device. Associated with this are disruptive deposits of the particles in the vicinity of the injection device. The locally disinfected air is circulated in the air supply duct after the disinfection which has taken place in the vicinity of the injection device and is not disinfected further, as the range of the particles inside the air supply duct is limited. The results achieved were only satisfactory initially and in new systems. After a certain time, disruptive deposits, which can also become centres for germs, form in the air supply ducts at different distances from the injection devices. PRESENTATION OF THE INVENTION The object of the present invention is to create a method and a device for disinfecting air in air supply ducts, which allow particles of a disinfectant to be distributed as homogeneously as possible on the inner walls of the air supply duct over virtually the entire length of the air supply ducts. This object and additionally the avoidance of disruptive locally accumulated deposits on the inner wall in the region of the injection nozzles is achieved - 3 by the device according to the invention and the method according to the invention. The injection effects a connection of the disinfectant in the air and then its deposition on the duct inner walls. In a preferred configuration, the disinfectant has a retentive behaviour, which allows its distribution in the entire duct and thus sterilisation of all the inner walls. In the results of conducted tests, the air moves multiple times (approx. 5-6 times) faster in the duct than the particles of the disinfectant, which, owing to their inertia, are deposited on the duct inner walls, entrained again by the air flow and deposited again at another point. This process can be repeated, which allows sufficiently complete wetting and sterilisation of the duct inner walls. As a result of the ionisation and static charge of the air molecules, all micro-organisms are affected. However, ozone formation must be avoided, as ozone destroys the disinfectant or its components. BRIEF DESCRIPTION OF THE DRAWINGS A preferred exemplary embodiment of the subject matter of the invention is described below in connection with the attached drawings. Figure 1 shows a schematic view of an air supply duct. Figure 2 shows a schematic view of a section of a curved air supply duct, whereas Figure 3 shows a schematic view of a straight air supply duct with a chicane for manipulating the air flow.
- 4 DESCRIPTION Figure 1 shows part of an air supply duct 1, the air flow 2 being indicated with arrows 2. In the air supply duct 1, a flow sensor 4 and an injection device 3 having at least one injection nozzle 30 for atomising and injecting the disinfectant are installed one behind the other in the flow direction 2. Further down the air supply duct 1, further injection devices 3 can be provided, which are not shown here. The method and the device described here can be used in particular in air conditioning systems. These elements are connected by electrical lines 7 to a regulation device 8. The injection device 3 having the at least one injection nozzle 30 is connected to a pipeline 9 which leads to a pump 10, which pumps disinfectant dissolved in water from a reservoir 11 to the at least one injection nozzle 30. The flow sensor 4 can switch off the pump 10 when the air flow 2 falls below a certain threshold value. Moreover, the pump operation can be adapted to the air flow rate. The mist of disinfectant produced by the at least one injection nozzle 30 consists of particles having a size of approximately 50 pm, which are injected in an injection direction 31 in the direction of the air flow 2. Owing to this injection in the direction of the air flow 2 inside the air supply duct 1, particles can be transported far through the air supply duct 1, in the best case through the entire air supply duct 1, before they are deposited on the inner walls 100, where they have their disinfectant effect for longer periods. It is advantageous to carry out the injection in a region downstream of a flow acceleration at a site at - 5 which a lower flow speed but a higher pressure prevails. In Figure 1, the injection device 3 is arranged in such a manner that part of the air flow 2 is covered, as a result of which a higher flow speed results at a narrowed portion 12. As known in a Venturi tube, a pressure difference prevails between the narrowed portion 12 of the air supply duct 1 and the regions with maximum cross-sectional area 13. In the region of the narrowed portion 12, the disinfectant is injected in an atomised manner through the injection nozzle 30, as a result of which particles are carried over great distances with the air flow 2 owing to the high flow speed. The high flow speed prevents immediate adsorption of the particles on the inner walls 100 of the air supply duct 1. The curvature of the air supply duct 1 shown in Figure 2 results in an acceleration of the flow, a higher pressure pl prevailing on the side of the smaller radius of curvature, at the exit region of the curve. The pressure p2 at the narrowed portion 12 on the side of the larger radius is less than the pressure p1, and a correspondingly high flow speed of the air flow 2 is present at this point. The high flow speed entrains atomised particles of the disinfectant, as a result of which a desirable distribution of the disinfectant can also be achieved in regions a long way away from the injection device 3. This arrangement of the injection device 3 in the region of a narrowed portion 12 ensures that particles are distributed virtually homogeneously in the air supply duct 1 before they are adsorbed on the inner walls 100.
- 6 In a further embodiment, which allows disinfectant to be deposited over the entire length of the air supply duct 1, a chicane 5 is used, which is arranged inside the cross section of the air supply duct 1. This is shown schematically in Figure 3. The chicane 5 forms a narrowed portion 12 in the air supply duct 1 and forces the air flow 2 in a targeted manner in the direction through the narrowed portion 12, a pressure difference between pl and p2 resulting in this case too. The injection takes place downstream of the chicane 5 through at least one injection nozzle 30, as a result of which atomised disinfectant is deposited in wide regions of the air supply duct 1. The chicane 5 can also be omitted in this embodiment. If the air is to be humidified, water can be evaporated at a suitable point in the air supply duct 1, the amount of which is regulated by the regulation device 8 with the aid of a humidity sensor. The same disinfectant is preferably added to the water in order to prevent introduction of fungi or algae etc. As the air flow ultimately reaches the working or living space from the air supply duct 1, the disinfectant should comply with the strictest health control requirements. It should never contain any mercury, phenol or similar substances, or alcohol. A biocide product comprising lactic acid, vitamin C and citric acid, available under the commercial name "OLLOSTAT" of the applicant, is for example used as a preferred disinfectant for use in the method according to the invention and the device. This disinfectant has been approved for use as a disinfectant by the Swiss Federal Office of Public Health.
- 7 LIST OF REFERENCE SYMBOLS I Air supply duct 100 Inner wall 2 Air flow (arrow) 3 Injection device 30 Injection nozzle 31 Injection direction (arrow) 4 Flow sensor 5 Chicane 7 Electrical lines 8 Regulation device 9 Pipeline 10 Pump 11 Reservoir 12 Narrowed portion 13 Maximum cross-sectional area

Claims (10)

1. A method for disinfecting the air of an air flow (2) in an air supply duct (1), in particular of an air-conditioning system with a non-toxic disinfectant, characterised by atomisation of the disinfectant into particles and injection of the particles by means of at least one injection nozzle (30) of an injection device (3) in an injection direction (31) , wherein the injection direction (31) corresponds approximately to the direction of the air flow (2), and distribution of the particles of the disinfectant in the air flow (2), and subsequent adsorption of the particles to the inner walls (100) can be achieved over the entire length of the air supply duct (1).
2. A method for disinfecting the air of an air flow (2) in an air supply duct (1), in particular of an air-conditioning system with a disinfectant, wherein the air is ionised in the duct, at least the disinfectant particles in the air are electrically charged, while the duct walls are kept at earth potential, so that the charged particles are deposited more rapidly onto the duct walls, characterised by atomisation of the disinfectant into particles and injection of the particles by means of at least - 2 one injection nozzle (30) of an injection device (3) in an injection direction (31), wherein the injection direction (31) corresponds approximately to the direction of the air flow (2), and distribution of the particles of the disinfectant in the air flow (2) and subsequent deposition of the particles on the inner walls (100) is achieved over the entire length of the air supply duct (1).
3. The method for disinfecting air according to Claim 1, characterised in that the injected disinfectant behaves in a retentive manner.
4. The method for disinfecting air according to Claims 1 to 3, characterised in that the injection takes place in a region downstream of a narrowed portion (12) and thus an acceleration in flow, wherein the pressure (pl) downstream of the flow acceleration is greater than the pressure (p2) in the region of the narrowed portion (12).
5. The method for disinfecting air according to Claim 3 or 4, characterised in that the acceleration in flow is achieved by the arrangement of the injection device (3) inside the air supply duct (1).
6. The method for disinfecting air according to Claim 3 or 4, characterised in that the acceleration in flow is achieved by a curvature of the air supply duct (1), wherein the injection device (3) is arranged on the side of the smaller radius in the exit region of the curve.
7. The method for disinfecting air according to Claim 3 or 4, characterised in that the acceleration in flow is achieved by a chicane (5) which is arranged inside the air supply duct (1).
8. The method according to one of the preceding claims, characterised in that a biocide product, in particular comprising a proportion of lactic acid, vitamin C and a proportion of citric acid is used as the disinfectant.
9. A device for disinfecting air according to the method according to one of the preceding claims, characterised in that at least one injection nozzle (30) is provided on the injection device (3), which can be supplied with a disinfectant via a pipeline (9) and a pump (10) from a reservoir (11).
10. The device according to Claim 9, characterised in that the atomised and injected amount of the disinfectant can be varied in a controlled manner by a regulation device (8) by means of electrical lines (7).
AU2010361376A 2010-09-27 2010-09-27 Method for disinfecting air in air ducts Abandoned AU2010361376A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/064255 WO2012041362A1 (en) 2010-09-27 2010-09-27 Method for disinfecting air in air ducts

Publications (1)

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AU2010361376A1 true AU2010361376A1 (en) 2013-04-11

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AU2010361376A Abandoned AU2010361376A1 (en) 2010-09-27 2010-09-27 Method for disinfecting air in air ducts

Country Status (8)

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US (1) US20130255285A1 (en)
EP (1) EP2621547A1 (en)
JP (1) JP5693735B2 (en)
CN (1) CN103282059A (en)
AU (1) AU2010361376A1 (en)
CA (1) CA2812625A1 (en)
RU (1) RU2013119370A (en)
WO (1) WO2012041362A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991436B1 (en) * 2012-05-31 2016-10-14 Stephane Jacky Boiral APPARATUS FOR CONDITIONING THE AIR OF A ROOM OR CLOSED ENCLOSURE
KR101552874B1 (en) * 2015-05-28 2015-09-14 김정우 Supermicellar Atomizing Device
US10758948B1 (en) * 2019-04-01 2020-09-01 William Edmund Harris Apparatus and methods for cleaning and remediating environmental air handling apparatus
CN106739967A (en) * 2016-11-24 2017-05-31 谢馥伊 A kind of air-conditioning device that human-body safety type thimerosal is sprayed with air-supply passage
IT201700064157A1 (en) * 2017-06-09 2018-12-09 Dropsa Spa Device and method of sanitizing an environment
IT201700064091A1 (en) * 2017-06-09 2018-12-09 Dropsa Spa Device and method of sanitizing an environment
IT202100028973A1 (en) * 2021-11-16 2023-05-16 Ras Group Srl SANITIZATION SYSTEM FOR AERAULIC SYSTEMS

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3503704A (en) * 1966-10-03 1970-03-31 Alvin M Marks Method and apparatus for suppressing fumes with charged aerosols
JPH0385180A (en) * 1989-08-15 1991-04-10 Jerome H Remerson Face mask
AU681582B2 (en) * 1992-04-28 1997-09-04 Deso Star Holland B.V. (I.O.) A method and a system for disinfecting air in air conditioning ducts
EP0687869A3 (en) * 1994-06-13 1998-01-07 CEPTER LTD., Switzerland Process and device for eradicating pests from air
JP3501926B2 (en) * 1997-09-19 2004-03-02 プリマハム株式会社 Meat processing method
JP2000257933A (en) * 1999-03-10 2000-09-22 Giken Kogyo Kk Exhaust duct with deodorizing function
JP4677102B2 (en) * 1999-04-23 2011-04-27 バテル・メモリアル・インスティテュート Aerosol feeder and method for feeding aerosol droplets
DE19931185A1 (en) * 1999-07-07 2001-01-18 Joerg Peter Schuer Air disinfection process
JP2003047938A (en) * 2001-08-08 2003-02-18 Eiwa Kogyo:Kk Garbage treatment machine
JP2003147694A (en) * 2001-11-12 2003-05-21 Nakadoi Riken Kk Method for producing hazardous substance-eliminating material for food and daily necessities by mixing vitamin to paper or nonwoven fabric
CN1444999A (en) * 2003-05-07 2003-10-01 李一平 Large atomised disinfection passage
JP4697625B2 (en) * 2004-10-12 2011-06-08 俊介 細川 Sterilization deodorization device
JP4966169B2 (en) * 2007-11-21 2012-07-04 パナソニック株式会社 Blower
JP4915961B2 (en) * 2008-05-27 2012-04-11 パナソニック株式会社 Air cleaner
US20100219259A1 (en) * 2009-02-27 2010-09-02 Mario Starcic Hvac disinfection and aromatization system

Also Published As

Publication number Publication date
EP2621547A1 (en) 2013-08-07
JP5693735B2 (en) 2015-04-01
WO2012041362A1 (en) 2012-04-05
JP2013540008A (en) 2013-10-31
CN103282059A (en) 2013-09-04
US20130255285A1 (en) 2013-10-03
CA2812625A1 (en) 2012-04-05
RU2013119370A (en) 2014-11-10

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