WO1993022603A1 - Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation - Google Patents

Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation Download PDF

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Publication number
WO1993022603A1
WO1993022603A1 PCT/NL1993/000089 NL9300089W WO9322603A1 WO 1993022603 A1 WO1993022603 A1 WO 1993022603A1 NL 9300089 W NL9300089 W NL 9300089W WO 9322603 A1 WO9322603 A1 WO 9322603A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
duct
disinfectant
flow
electrodes
Prior art date
Application number
PCT/NL1993/000089
Other languages
English (en)
Inventor
René WEIBEL
Original Assignee
Deso Star Holland B.V. (I.O.)
Liwihold B.V.
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 Deso Star Holland B.V. (I.O.), Liwihold B.V. filed Critical Deso Star Holland B.V. (I.O.)
Priority to BR9306305A priority Critical patent/BR9306305A/pt
Priority to AU40917/93A priority patent/AU681582B2/en
Priority to PCT/NL1993/000089 priority patent/WO1993022603A1/fr
Priority to CA002134202A priority patent/CA2134202C/fr
Priority to US08/325,418 priority patent/US5648046A/en
Priority to JP51914193A priority patent/JP3357056B2/ja
Priority to EP93910438A priority patent/EP0615603B1/fr
Priority to DE69301457T priority patent/DE69301457T2/de
Publication of WO1993022603A1 publication Critical patent/WO1993022603A1/fr
Priority to FI945022A priority patent/FI101103B/fi
Priority to NO944088A priority patent/NO179957C/no

Links

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
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • 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

Definitions

  • a good air disinfection is especially important when a substantial part of the air introduced into the closed space is recycled, as, for instance, in aeroplanes.
  • Eliminating germs by means of poisonous substances is not allowed in most countries, if these substances can reach the space in which persons are present.
  • the invention provides a method for the above-mentioned purpose, which does not have these objections, which method is defined in claims 1..5.
  • the non-poisonous disinfectant kills fungi, algae and similar organisms, and is active not only in the air flow itself, but, by precipitation thereof on the walls of the duct, also in a prolonged way on the germs precipitating thereon which may return again in the airflow later, so that also these germs can be effectively suppressed.
  • the air is ionised, not only microbes and viruses will be effectively suppressed, but also the vapourised disinfectant particles will be charged, so that they will deposit faster on the duct walls.
  • the air flowing through the duct is to be moistened, preferably the same disinfectant is added to the water used therefor, in order to counteract thereby the introduction of harmful germs into the duct.
  • the system shown in the drawing comprises a part of an air ventilation duct 1, the air flow flowing therein being indicated by arrows 2.
  • a flow sensor 3 In the duct 1, as seen in the flow sense, are consecutively arranged a flow sensor 3, an assembly 4 of particularly needle-shaped air ionisation electrodes, an assembly 5 of disinfectant vaporisers, and an ozone sensor 6.
  • the flow sensor 3 is adapted to disconnect the pump 10, and, if required, also the electrodes 4, if the air flow 2 decreases below a given threshold value, and it is also possible to adapt the operation of the pump 10 to the air flow rate.
  • the ozone sensor 6 is adapted to lower the voltage at the electrodes 4 if an ozone content threshold is exceeded. This voltage should, generally, be lower than 10 kV. In this manner >10 12 ions/s can be produced at a current intensity of some ⁇ A.
  • the disinfectant should comply with the most severe requirements imposed by public health services. Therefore it definitely should not contain mercury, formaldehyde, phenol or the like, and, because of fire hazard, in particular in the case of ionisation, the use of alcohol is not allowed either.
  • the disinfectant used according to the invention is a quaternary ammonium compound, commercially available under the name "Duner 2000", and being approved by the Swiss inspection service as being non-poisonous ("Gifttre” BAG T 73512 DC).
  • This disinfectant consists of a quaternary ammonium complex, in particular a benzyl ammonium chloride, such as n-octyldimethyl, 1,1,3,3-tetrabutyl phenoxy ethyldimethyl or 1,1,3,3-tetrabutyl-o-ethoxydimethyl benzyl ammonium chloride.
  • a benzyl ammonium chloride such as n-octyldimethyl, 1,1,3,3-tetrabutyl phenoxy ethyldimethyl or 1,1,3,3-tetrabutyl-o-ethoxydimethyl benzyl ammonium chloride.
  • the invention is, however, not restricted to these examples.
  • This disinfectant is sold in concentrated form (16 % active substance), and the concentrate will, for example, be added to the water in the reservoir 11 in a ratio of 1:100.
  • Preferably demineralised water is used therefor.
  • water can be vaporised in a suitable point of the duct 1 and under control of the control apparatus 8, and, as a matter of fact, a humidity sensor can be used then.
  • a humidity sensor can be used then.
  • the same disinfectant is added to the water used therefor so as to counteract the introduction of fungi, algae and the like.
  • the system can, for instance, comprise a microprocessor, and can be connected to remote indicating and/or adjusting means allowing remote control or measurement.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Procédé de désinfection de l'air dans les conduits d'air de ventilation, selon lequel on vaporise sous forme d'aérosol dans l'air en écoulement dans le conduit, un désinfectant non toxique et sensiblement non volatil, notamment un complexe d'ammonium quaternaire, à l'aide de micro-pulvérisateurs, et on permet au désinfectant de se précipiter sur les parois du conduit. En outre, on peut ioniser l'air sensiblement sans produire d'ozone. On a également prévu un système de mise en ÷uvre de ce procédé, comportant un conduit d'air (1) possédant un dispositif de désinfection de l'air (2) en écoulement dans celui-ci, constitué d'un ensemble de buses de pulvérisation (5) reliées par l'intermédiaire d'une pompe de dosage (10) à un réservoir (11) à désinfectant dissous, et d'un débitmètre (3) destiné à réguler la pompe de dosage (10). Par ailleurs, des électrodes d'ionisation (4) sont prévues dans le conduit (1) et reliées à une source de haute tension, et un détecteur d'ozone (6) est monté à une certaine distance en aval de ces électrodes (4) et est relié à une unité de commande (8) adaptée pour commander la source de haute tension.
PCT/NL1993/000089 1992-04-28 1993-04-28 Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation WO1993022603A1 (fr)

Priority Applications (10)

Application Number Priority Date Filing Date Title
BR9306305A BR9306305A (pt) 1992-04-28 1993-04-28 Processo e sistema para desingecção de ar em dutos de ar condicionado
AU40917/93A AU681582B2 (en) 1992-04-28 1993-04-28 A method and a system for disinfecting air in air conditioning ducts
PCT/NL1993/000089 WO1993022603A1 (fr) 1992-04-28 1993-04-28 Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation
CA002134202A CA2134202C (fr) 1992-04-28 1993-04-28 Methode et systeme servant a desinfecter l'air dans des gaines de conditionnement
US08/325,418 US5648046A (en) 1992-04-28 1993-04-28 Method and a system for disinfecting air in air conditioning ducts
JP51914193A JP3357056B2 (ja) 1992-04-28 1993-04-28 空調ダクト内空気の殺菌方法及び装置
EP93910438A EP0615603B1 (fr) 1992-04-28 1993-04-28 Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation
DE69301457T DE69301457T2 (de) 1992-04-28 1993-04-28 Verfahren und vorrichtung zur desinfektion von luft in klimaanlagen
FI945022A FI101103B (fi) 1992-04-28 1994-10-26 Menetelmä ja järjestelmä ilman definfioimiseksi ilmastointikanavissa
NO944088A NO179957C (no) 1992-04-28 1994-10-27 Framgangsmåte og system for desinfisering av luft i ventilasjonskanaler

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH137592 1992-04-28
CH1375/92-3 1992-07-28
PCT/NL1993/000089 WO1993022603A1 (fr) 1992-04-28 1993-04-28 Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation

Publications (1)

Publication Number Publication Date
WO1993022603A1 true WO1993022603A1 (fr) 1993-11-11

Family

ID=25687481

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1993/000089 WO1993022603A1 (fr) 1992-04-28 1993-04-28 Procede et systeme de desinfection de l'air dans les conduits d'air de climatisation

Country Status (1)

Country Link
WO (1) WO1993022603A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687869A3 (fr) * 1994-06-13 1998-01-07 CEPTER LTD., Switzerland Procédé et dispositif pour exterminer les vermines de l'air
WO1998026482A1 (fr) * 1996-12-11 1998-06-18 T.E.M. Technische Entwicklungen Und Management Gm Bh Dispositif de production d'ions d'oxygene actifs dans l'air pour la purification de l'air, au moyen d'un ionisateur d'air
US6103190A (en) * 1995-10-24 2000-08-15 Mitsubishi Denki Kabushiki Kaisha Microorganism multiplication preventing method and apparatus
EP1139735B1 (fr) * 1998-12-24 2006-07-12 University Of Southampton Procede et appareil de dispersion d'une composition volatile
FR2928272A1 (fr) * 2008-03-04 2009-09-11 Dalkia France Soc En Commandit Procede de desinfection d'un reseau de ventilation et son dispositif.
NL2010520C2 (en) * 2013-03-26 2014-09-29 Virus Free Air B V Air duct product.
WO2015002607A1 (fr) * 2013-07-05 2015-01-08 Sem Yam Gan Ionisateurs interactifs et procédés pour la fourniture d'ions
US9562702B2 (en) 2011-01-14 2017-02-07 Akos R&D Ltd. Air treatment apparatus and method
US20170128611A1 (en) * 2015-07-16 2017-05-11 Xavier Rex Prax Hvac fluid dispersant system
US10139118B2 (en) 2011-01-14 2018-11-27 Akos R&D Ltd. Air treatment apparatus and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414337A1 (fr) * 1978-01-13 1979-08-10 Paragerm France Procede et dispositif pour la decontamination de locaux
EP0355765A2 (fr) * 1988-08-22 1990-02-28 Dow Corning Corporation Procédé pour inhiber la propagation de maladies et d'infections dans des structures

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2414337A1 (fr) * 1978-01-13 1979-08-10 Paragerm France Procede et dispositif pour la decontamination de locaux
EP0355765A2 (fr) * 1988-08-22 1990-02-28 Dow Corning Corporation Procédé pour inhiber la propagation de maladies et d'infections dans des structures

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0687869A3 (fr) * 1994-06-13 1998-01-07 CEPTER LTD., Switzerland Procédé et dispositif pour exterminer les vermines de l'air
US6103190A (en) * 1995-10-24 2000-08-15 Mitsubishi Denki Kabushiki Kaisha Microorganism multiplication preventing method and apparatus
WO1998026482A1 (fr) * 1996-12-11 1998-06-18 T.E.M. Technische Entwicklungen Und Management Gm Bh Dispositif de production d'ions d'oxygene actifs dans l'air pour la purification de l'air, au moyen d'un ionisateur d'air
US6375714B1 (en) 1996-12-11 2002-04-23 T.E.M.! Technishe Entwicklungen Und Managament Gmbh Device and process to produce active oxygen ions in the air for improved air quality
EP1139735B1 (fr) * 1998-12-24 2006-07-12 University Of Southampton Procede et appareil de dispersion d'une composition volatile
WO2009112408A1 (fr) * 2008-03-04 2009-09-17 Dalkia France Procède de désinfection d'un réseau de ventilation et son dispositif
FR2928272A1 (fr) * 2008-03-04 2009-09-11 Dalkia France Soc En Commandit Procede de desinfection d'un reseau de ventilation et son dispositif.
US9562702B2 (en) 2011-01-14 2017-02-07 Akos R&D Ltd. Air treatment apparatus and method
US10139118B2 (en) 2011-01-14 2018-11-27 Akos R&D Ltd. Air treatment apparatus and method
NL2010520C2 (en) * 2013-03-26 2014-09-29 Virus Free Air B V Air duct product.
WO2015002607A1 (fr) * 2013-07-05 2015-01-08 Sem Yam Gan Ionisateurs interactifs et procédés pour la fourniture d'ions
US20170128611A1 (en) * 2015-07-16 2017-05-11 Xavier Rex Prax Hvac fluid dispersant system
US10251969B2 (en) * 2015-07-16 2019-04-09 Xavier Rex Prax HVAC fluid dispersant system

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