EP2621547A1 - Procédé de désinfection de l'air contenu dans des canalisations d'air - Google Patents

Procédé de désinfection de l'air contenu dans des canalisations d'air

Info

Publication number
EP2621547A1
EP2621547A1 EP10757771.0A EP10757771A EP2621547A1 EP 2621547 A1 EP2621547 A1 EP 2621547A1 EP 10757771 A EP10757771 A EP 10757771A EP 2621547 A1 EP2621547 A1 EP 2621547A1
Authority
EP
European Patent Office
Prior art keywords
air
disinfectant
injection
particles
air supply
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.)
Withdrawn
Application number
EP10757771.0A
Other languages
German (de)
English (en)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2621547A1 publication Critical patent/EP2621547A1/fr
Withdrawn legal-status Critical Current

Links

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

Definitions

  • the present invention describes a method for disinfecting air of an air stream in an air supply channel, in particular an air conditioning system with a non-toxic disinfectant.
  • EP0615603 discloses a method and apparatus for disinfecting air in air supply ducts of an air conditioning system.
  • a non-toxic disinfectant is injected against an air flow in an air supply channel 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, since it is reflected on the inner walls of the air supply channel, it acts long-term on the deposited on the inner walls of germs, so this no longer get into the airflow.
  • the disclosed method describes the disinfection of the air in the area of the injection device.
  • the particles of the disinfectant are firstly injected in the direction of the air flow in the air supply channel and on the other hand, the particles are ionized by means of ionization.
  • the injection against the air flow results in the formation of clouds around the injection nozzles, wherein a part of the particles are thrown against the adjacent inner walls of the air supply channel in the vicinity of the injection device and deposit there preferably heaped up.
  • ionization injected particles are electrically charged and, since the air supply channel is grounded, quickly dissipated in the direction of the inner wall of the air supply channel.
  • the ionized particles are thereby deposited in the region of the injection nozzle shortly after emerging on the inner walls of the air supply channel and thus do not migrate further in the air supply channel. There is thus a locally limited to the place of injection limited disinfection of air in the injection device instead.
  • the locally disinfected air is circulated in the air supply channel after disinfection in the vicinity of the injection device and is not further disinfected, since the range of the particles within the air supply channel is limited.
  • the object of the present invention is to provide a method and a device for disinfecting air in air supply ducts, which or a distribution of particles of a disinfectant which extends over almost the entire length of the air supply ducts as homogeneously as possible on the inner walls allows the air supply channel.
  • This task and additionally the avoidance of disturbing locally accumulated deposits on the inner wall in the area of Injection nozzles are achieved by the device according to the invention or the method according to the invention.
  • the injection causes a connection of the disinfectant in the air and then its deposition on the channel inner walls.
  • the disinfectant on a retentive behavior, which allows its distribution throughout the channel and thus sterilization of all inner walls.
  • the air moves as a result of tests carried out in the channel a multiple (about 5-6 times) faster than the particles of the
  • Discharge channel inner walls be carried along by the air flow again and settle again elsewhere. This process can be repeated, which allows a sufficiently complete wetting and sterilization of the channel inner walls.
  • FIG. 1 shows a schematic view of an air supply channel.
  • Figure 2 shows a schematic view of a section of a bent air supply channel, while
  • Figure 3 shows a schematic view of a straight air supply duct with a chicane for manipulating the air flow. description
  • Figure 1 shows a part of an air supply channel 1, wherein the air flow 2 is indicated by arrows 2.
  • a flow sensor 4 and an injection device 3 with at least one injection nozzle 30 for atomizing and injecting the disinfectant are installed in the air supply channel 1 in succession.
  • further injection devices 3 may be provided, which are not shown here. The method described here, as well as the device can be used in particular in air conditioning systems.
  • the injection device 3 with 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 may turn off the pump 10 when the airflow 2 falls below a certain threshold. In addition, the pumping operation of the air flow rate can be adjusted.
  • the mist generated by the at least one injection nozzle 30 of the disinfectant consists of particles with a size of about 50 ⁇ ", which are injected in an injection direction 31 in the direction of the air flow 2.
  • Particles can be transported far through the air supply channel 1 at best through the entire air supply channel 1 before they deposit on the inner walls 100, where they unfold their disinfecting effect for longer periods.
  • the injection device 3 is arranged such that a portion of the air flow 2 is covered, whereby at a constriction 12, a higher flow velocity results.
  • a Venturi tube there is a pressure difference between the constriction 12 of the air supply channel 1 and the areas of maximum cross-sectional area 13.
  • the disinfectant is injected by the injection nozzle 30 dusted, whereby particles due to the high flow velocity with the air stream 2 are carried over long distances.
  • the high flow rate prevents immediate adsorption of the particles on the inner walls 100 of the air supply channel. 1
  • the curvature of the air supply channel 1 shown in Figure 2 leads to a flow acceleration, wherein prevails on the side of the narrower radius of curvature, at the output range of the curvature, a high pressure pl.
  • the pressure p2 at the constriction 12 on the side of the larger radius is less than the pressure pl and a correspondingly high flow velocity of the air flow 2 is present at this point.
  • the high flow rate carries atomized particles of the disinfectant, whereby a desired distribution of the disinfectant in areas far away from the injection device 3 is achievable.
  • This arrangement of the injection device 3 in the region of a constriction 12 ensures that particles are distributed approximately homogeneously in the air supply channel 1 before they adsorb to the inner walls 100.
  • a baffle 5 arranged within the cross section of the air supply channel 1 is used. This is shown schematically in FIG.
  • the baffle 5 forms a constriction 12 in the air supply channel 1 and forces the air flow 2 targeted in the direction of the constriction 12, which again results in a pressure difference between pl and p2.
  • the injection takes place downstream of the baffle 5 through at least one injection nozzle 30, whereby atomized disinfectant is deposited in wide areas of the air supply channel 1.
  • On the baffle 5 in this embodiment can also be omitted.
  • water can be evaporated at a suitable location in the air supply channel 1, the amount of which is regulated by the regulating device 8 with the aid of a moisture sensor.
  • the same disinfectant is added to the water to prevent introduction of fungi or algae, etc.
  • the disinfectant should meet the strictest health control requirements. It should not contain mercury, phenol or similar substances or alcohol.
  • a biocidal product comprising lactic acid, vitamin C and citric acid, available under the tradename "OLLOSTAT" of the Applicant. This disinfectant has been approved by the Swiss Federal Office of Public Health for use as a disinfectant. LIST OF REFERENCE NUMBERS

Landscapes

  • 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

L'invention concerne un procédé et un dispositif pour désinfecter l'air d'un flux d'air (2) dans une canalisation d'alimentation en air (1), avec un agent désinfectant non toxique. Ledit agent désinfectant est pulvérisé au moyen d'au moins une buse d'injection (30) d'un dispositif d'injection (3) et est injecté dans le sens d'injection (31), ledit sens d'injection (31) correspondant approximativement au sens d'écoulement du flux d'air (2). L'injection effectuée dans une zone située après un rétrécissement (12) et par conséquent l'accélération de l'écoulement qui accompagne l'injection permettent une adsorption des particules sur les parois intérieures (100) de la canalisation d'alimentation en air (1) sur toute la longueur de la canalisation d'alimentation en air (1).
EP10757771.0A 2010-09-27 2010-09-27 Procédé de désinfection de l'air contenu dans des canalisations d'air Withdrawn EP2621547A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/064255 WO2012041362A1 (fr) 2010-09-27 2010-09-27 Procédé de désinfection de l'air contenu dans des canalisations d'air

Publications (1)

Publication Number Publication Date
EP2621547A1 true EP2621547A1 (fr) 2013-08-07

Family

ID=43127691

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10757771.0A Withdrawn EP2621547A1 (fr) 2010-09-27 2010-09-27 Procédé de désinfection de l'air contenu dans des canalisations d'air

Country Status (8)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991436B1 (fr) * 2012-05-31 2016-10-14 Stephane Jacky Boiral Appareil pour conditionner l'air d'une piece ou d'une enceinte fermee
KR101552874B1 (ko) * 2015-05-28 2015-09-14 김정우 초입자 분무장치
US10758948B1 (en) * 2019-04-01 2020-09-01 William Edmund Harris Apparatus and methods for cleaning and remediating environmental air handling apparatus
CN106739967A (zh) * 2016-11-24 2017-05-31 谢馥伊 一种随送风通道喷洒人体安全型消毒液的空调装置
IT201700064157A1 (it) * 2017-06-09 2018-12-09 Dropsa Spa Dispositivo e metodo di sanificazione di un ambiente
IT201700064091A1 (it) * 2017-06-09 2018-12-09 Dropsa Spa Dispositivo e metodo di sanificazione di un ambiente
IT202100028973A1 (it) * 2021-11-16 2023-05-16 Ras Group Srl Sistema di sanificazione per impianti aeraulici

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JPH0385180A (ja) * 1989-08-15 1991-04-10 Jerome H Remerson 顔用マスク
KR950701421A (ko) * 1992-04-28 1995-03-23 레네 와이벨 공기 통풍관의 공기를 살균하는 시스템과 방법
EP0687869A3 (fr) * 1994-06-13 1998-01-07 CEPTER LTD., Switzerland Procédé et dispositif pour exterminer les vermines de l'air
JP3501926B2 (ja) * 1997-09-19 2004-03-02 プリマハム株式会社 食肉の処理方法
JP2000257933A (ja) * 1999-03-10 2000-09-22 Giken Kogyo Kk 脱臭機能付き排気用ダクト
WO2000064590A1 (fr) * 1999-04-23 2000-11-02 Battelle Memorial Institute Pulverisateur aerosol electrohydrodynamique (ehd) a commande directionnelle
DE19931185A1 (de) * 1999-07-07 2001-01-18 Joerg Peter Schuer Verfahren zur Entkeimung von Luft
JP2003047938A (ja) * 2001-08-08 2003-02-18 Eiwa Kogyo:Kk ゴミ処理機
JP2003147694A (ja) * 2001-11-12 2003-05-21 Nakadoi Riken Kk 紙、不織布などにビタミン剤を混入し食品や生活必需品の有害物質除去材の製造方法
CN1444999A (zh) * 2003-05-07 2003-10-01 李一平 大型雾化消毒通道
JP4697625B2 (ja) * 2004-10-12 2011-06-08 俊介 細川 殺菌脱臭装置
JP4966169B2 (ja) * 2007-11-21 2012-07-04 パナソニック株式会社 送風装置
JP4915961B2 (ja) * 2008-05-27 2012-04-11 パナソニック株式会社 空気清浄機
US20100219259A1 (en) * 2009-02-27 2010-09-02 Mario Starcic Hvac disinfection and aromatization system

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See also references of WO2012041362A1 *

Also Published As

Publication number Publication date
RU2013119370A (ru) 2014-11-10
CA2812625A1 (fr) 2012-04-05
JP5693735B2 (ja) 2015-04-01
WO2012041362A1 (fr) 2012-04-05
JP2013540008A (ja) 2013-10-31
AU2010361376A1 (en) 2013-04-11
CN103282059A (zh) 2013-09-04
US20130255285A1 (en) 2013-10-03

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