EP0707178A2 - Méthode et dispositif pour le traitement d'air - Google Patents

Méthode et dispositif pour le traitement d'air Download PDF

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Publication number
EP0707178A2
EP0707178A2 EP95116004A EP95116004A EP0707178A2 EP 0707178 A2 EP0707178 A2 EP 0707178A2 EP 95116004 A EP95116004 A EP 95116004A EP 95116004 A EP95116004 A EP 95116004A EP 0707178 A2 EP0707178 A2 EP 0707178A2
Authority
EP
European Patent Office
Prior art keywords
air
ozone
rooms
generators
nitrogen oxide
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.)
Granted
Application number
EP95116004A
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German (de)
English (en)
Other versions
EP0707178A3 (fr
EP0707178B1 (fr
Inventor
Alexander Dr. Med. Balkanyi
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Individual
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Individual
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Publication of EP0707178A3 publication Critical patent/EP0707178A3/fr
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Publication of EP0707178B1 publication Critical patent/EP0707178B1/fr
Anticipated expiration legal-status Critical
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    • 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
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
    • 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
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • 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
    • F24F8/26—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 using ozone
    • 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
    • F24F8/40—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ozonisation

Definitions

  • the invention relates to devices and a method for processing indoor air according to the preamble of the independent claims.
  • the air passes through several sterilization stations, which spaced one behind the other in the ventilation ducts. This allows large areas of the air conditioning or heating system to be kept under aseptic conditions.
  • ultraviolet light sources can be used as the sterilization stations, which emit light with a germicidal effect. By connecting several such sources in series, the individual sources do not have to be particularly powerful, which reduces their price.
  • ozone generators are used as disinfection stations.
  • the series connection of several ozone generators allows large areas of the air conditioning system to be kept under ozone concentrations with only a slight gradient, which makes high peak concentrations unnecessary. This allows the ozone concentration to be adjusted to the effective range of effectiveness. This is why the system manages with a much lower ozone concentration than existing solutions. Operational safety is increased and damage caused by undesired oxidation is reduced.
  • the ozone in the air is broken down by means of ozone catalysts or the like before entering the rooms. These can be at the end of the respective feed channels. Since the ozone concentrations are relatively low, the catalysts can be simply constructed. No ozone catalysts are necessary between the individual ozone sources.
  • an ozone lock with one or more ozone sources is used, the air being passed through a device for reducing nitrogen oxide before entering the rooms. It turns out that this measure often improves the air quality, since many common ozone sources simultaneously generate nitrogen oxide.
  • Figure 1 shows a simplified diagram of an inventive system for air treatment in a building. This can be, for example, an air conditioning system or a circulating air heater.
  • the building has several rooms 1. From these, the air is brought to a control center 5 via exhaust air ducts 2-4.
  • the control center 5 comprises a circulation pump, heating and cooling units, mixing chambers for supplying fresh air, devices for regulating the air humidity, filters, etc. These are designed in a conventional manner and do not need to be described further here.
  • the air then enters the rooms 1 from the control center 5 via supply air channels 6 - 8 and air outlets 9.
  • ozone generators 10 are arranged in the supply air channels 6 and 7 as sterilization stations. With these generators, an ozone concentration is maintained in all supply air channels 6 - 8, which is sufficient to kill none and to break down pollutants and odors. Just before or in the Air outlets 9 are provided 11 for depletion of ozone.
  • the ozone generators 10 can be of various types, which e.g. Convert oxygen in the air to ozone.
  • the devices 11 for ozone depletion can also be conventional.
  • ozone catalysts as described in EP-A-431 648 can be used. (As described below, ultraviolet light sources can be used in place of the ozone generators.)
  • ozone generators generate not only ozone but also nitrogen oxides.
  • devices 12 are provided in front of the air outlets 9 which reduce the nitrogen oxide content of the air. This can be, for example, suitable catalysts or filters.
  • the dismantling devices 11 and 12 can also be combined.
  • the device 12 for reducing nitrogen oxide is preferably arranged in front of the ozone depletion device 11, since many of the known ozone depletion devices are impaired in their function by nitrogen oxide.
  • each ozone generator 10 is preferably regulated. As shown in FIG. 2, each ozone generator 10 can be equipped with an ozone sensor 13 for this purpose. This sensor is located at the end of the effective range of the respective ozone generator 10, ie in front of the following ozone generator 10 or. the following degradation device 11, 12.
  • a control electronics in each ozone generator ensures that the ozone concentration in the sensor 13 is kept at a desired value. This has the advantage the different degrees of pollution of the air (which change the rate of ozone depletion) are automatically taken into account. If the air is very dirty, the ozone depletion in the air is accelerated. In this case, the ozone generation rate is automatically increased so that the target value is maintained at sensor 13.
  • FIG. 3 shows the course of the ozone concentration in the system according to FIG. 2. After each ozone generator 10, the concentration reaches a maximum value Kmax and then drops to a minimum value Kmin at the end of the following effective range. When using ozone sensors 13, the minimum value Kmin corresponds approximately to the specified target value.
  • the minimum value Kmin should be selected so that the effect of the ozone is sufficient for disinfection and pollutant degradation and that the formation of infection sources in the channels is prevented.
  • the specific setpoint depends on the respective operating conditions and is influenced in particular by the air's passage time through the ozone-containing zone, the temperature, the air humidity and the amount of substances to be oxidized.
  • the concrete setpoint can be fixed or set by a central controller based on the current operating parameters, such as. B. humidity, air flow rate and temperature.
  • the maximum value Kmax is preferably regulated via the sensors 13. It gets bigger if the distance between successive ozone generators resp. the distance between the last generator and the mining device 11, 12 increases. This distance is in the meter or ten meter range, for example between 1 and 50 meters. It should be chosen in such a way that in the case of slightly polluted air and medium humidity the ratio Kmax: Kmin is smaller, if possible significantly smaller than 10, so that peak values that are too high are avoided.
  • a further ozone sensor 14 is provided at the outlet 9 (cf. FIG. 2). This can be read in room 1 and indicates whether the ozone concentration of the air coming through the outlet 9 exceeds a limit value.
  • a chemical indicator e.g. wet potassium iodide, or an electronic sensor with display can be used.
  • Such a limit value monitor can also be provided in conventional air treatment plants with only one ozone generator and in compact air conditioning units.
  • the ozone generators 10 are arranged in the supply air channels 6, 7, a first one of the generators immediately after the control center 5.
  • ozone generators 10 can also be arranged in or in front of the control center 5 and in the exhaust air ducts 2 - 4, so that these too Areas under ozone. This further improves the effectiveness of the system and the ozone concentration can be reduced.
  • the ozone generators do not necessarily have to be in continuous operation. They can also be operated at intervals.
  • ultraviolet light sources can also be used as sterilization stations instead of the ozone generators. These light sources preferably generate UV-C radiation. UV light sources can be used individually, but also one after the other in the air duct according to the arrangement described above.
  • UV-C radiation on bacteria and germs can take place directly or through ozone generated by UV light.

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)
  • Central Air Conditioning (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)
  • Treating Waste Gases (AREA)
EP95116004A 1994-10-13 1995-10-11 Méthode et dispositif pour le traitement d'air Expired - Lifetime EP0707178B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH307594 1994-10-13
CH3075/94 1994-10-13
CH307594 1994-10-13

Publications (3)

Publication Number Publication Date
EP0707178A2 true EP0707178A2 (fr) 1996-04-17
EP0707178A3 EP0707178A3 (fr) 1997-05-02
EP0707178B1 EP0707178B1 (fr) 2001-04-18

Family

ID=4248073

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95116004A Expired - Lifetime EP0707178B1 (fr) 1994-10-13 1995-10-11 Méthode et dispositif pour le traitement d'air

Country Status (6)

Country Link
US (1) US5752878A (fr)
EP (1) EP0707178B1 (fr)
AT (1) ATE200706T1 (fr)
DE (1) DE59509203D1 (fr)
ES (1) ES2156176T3 (fr)
IL (1) IL115559A (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014011063A1 (fr) * 2012-07-12 2014-01-16 Sliwinski Bogdan Unité de traitement de l'air et système d'unités de traitement de l'air
WO2018133896A1 (fr) * 2017-01-17 2018-07-26 Fachhochschule Dortmund Procédé et dispositif de désinfection pour la désinfection de circuits de circulation de liquide dans un appareil, en particulier pour des circuits de circulation d'eau dans un appareil d'hypothermie
WO2019134955A1 (fr) * 2018-01-05 2019-07-11 Vinci Construction Systeme de traitement de l'air pour un batiment ou navire

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5961919A (en) * 1996-05-15 1999-10-05 Matsushita Electric Industrial Co., Ltd. Deodorizing and sterilizing device having catalyst deterioration sensing function
CA2226927C (fr) * 1998-03-18 1999-11-02 Robert Crosbie Ozoneur
EP1048303A1 (fr) * 1998-11-03 2000-11-02 Teresa Vilarasau Alegre Systeme de desinfection microbiologique des conduites d'aeration
US7192553B2 (en) * 1999-12-15 2007-03-20 Plasmasol Corporation In situ sterilization and decontamination system using a non-thermal plasma discharge
AU2001259309A1 (en) * 2000-05-01 2001-11-12 Board Of Regents Of University Of Nebraska Office air handling unit
US6855295B2 (en) * 2000-07-17 2005-02-15 John C. Kulp UV air cleaning and disinfecting system
US20030207665A1 (en) * 2001-05-01 2003-11-06 Mingsheng Liu Office air handling unit
US20040184972A1 (en) * 2001-10-02 2004-09-23 Kelly Daniel W Rapid sterilization of an air filter medium
US20040022679A1 (en) * 2001-11-02 2004-02-05 St. Onge Benedict B. Decontamination system for chemical and biological agents
CA2473540C (fr) * 2002-01-16 2008-12-02 Vent Master (Europe) Limited Dispositif et procede de ventilation a lampes a u.v.
DE10203234A1 (de) * 2002-01-28 2003-07-31 Kendro Lab Prod Gmbh Dekontaminierbare Sicherheitswerkbank
US6793897B2 (en) * 2002-03-18 2004-09-21 John O. Shannon Biological and chemical defense apparatus utilizing cold plasma generated pressurized activated oxygen
US7407624B2 (en) * 2002-04-16 2008-08-05 Prompt Care, Inc. Method for abatement of allergens, pathogens and volatile organic compounds
WO2003089017A1 (fr) * 2002-04-16 2003-10-30 Prompt Care, Inc. Procede destine a eliminer les allergenes, les agents pathogenes et les composes organiques volatils
CN100378406C (zh) * 2003-05-26 2008-04-02 金贤 一种中央空调灭菌消毒装置
ATE530203T1 (de) * 2003-07-18 2011-11-15 David Richard Hallam Luftreinigungsvorrichtung
US20050163650A1 (en) * 2004-01-22 2005-07-28 Keith Crawford Particulate neutralization system for air handling equipment
EP1814644B1 (fr) * 2004-10-12 2011-07-20 Pure Solutions LLC Procede de diminution des allergenes dans une enveloppe
BRPI0504499A (pt) * 2004-10-13 2006-05-23 Oreal composição cosmética, uso da composição, processos de tratamento cosmético dos cabelos e kit

Citations (2)

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Publication number Priority date Publication date Assignee Title
EP0431648A1 (fr) 1989-12-08 1991-06-12 Uop Système pour la réduction de pollution
EP0567775A2 (fr) 1992-04-28 1993-11-03 HumanAir Patentverwertungsgesellschaft mbH Procédé de traitement de l'air de locaux pour le domaine humain

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BE622105A (fr) * 1961-09-04
DE2243223A1 (de) * 1972-09-01 1974-03-07 Draegerwerk Ag Filtervorrichtung zur entfernung von bakterien aus der belueftungsluft
DE3418511A1 (de) * 1984-02-14 1985-11-21 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Geruchsabsorber mit fahrbarem schrank und rezirkulation der ansaugluft und zusaetzlichem duftfilterteil, vorzugsweise fuer krankenhaeuser
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JPH02164703A (ja) * 1988-12-19 1990-06-25 Fuji Electric Co Ltd オゾン供給装置
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JPH0829221B2 (ja) * 1989-12-15 1996-03-27 堺化学工業株式会社 オゾン分解方法
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Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0431648A1 (fr) 1989-12-08 1991-06-12 Uop Système pour la réduction de pollution
EP0567775A2 (fr) 1992-04-28 1993-11-03 HumanAir Patentverwertungsgesellschaft mbH Procédé de traitement de l'air de locaux pour le domaine humain

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014011063A1 (fr) * 2012-07-12 2014-01-16 Sliwinski Bogdan Unité de traitement de l'air et système d'unités de traitement de l'air
WO2018133896A1 (fr) * 2017-01-17 2018-07-26 Fachhochschule Dortmund Procédé et dispositif de désinfection pour la désinfection de circuits de circulation de liquide dans un appareil, en particulier pour des circuits de circulation d'eau dans un appareil d'hypothermie
WO2019134955A1 (fr) * 2018-01-05 2019-07-11 Vinci Construction Systeme de traitement de l'air pour un batiment ou navire
FR3076601A1 (fr) * 2018-01-05 2019-07-12 Vinci Construction Systeme de traitement de l'air pour un batiment ou navire

Also Published As

Publication number Publication date
IL115559A (en) 2000-02-29
EP0707178A3 (fr) 1997-05-02
ATE200706T1 (de) 2001-05-15
EP0707178B1 (fr) 2001-04-18
DE59509203D1 (de) 2001-05-23
IL115559A0 (en) 1996-01-19
US5752878A (en) 1998-05-19
ES2156176T3 (es) 2001-06-16

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