EP0025157B1 - Verfahren zur Luftwäsche in Klimaanlagen - Google Patents

Verfahren zur Luftwäsche in Klimaanlagen Download PDF

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Publication number
EP0025157B1
EP0025157B1 EP80105021A EP80105021A EP0025157B1 EP 0025157 B1 EP0025157 B1 EP 0025157B1 EP 80105021 A EP80105021 A EP 80105021A EP 80105021 A EP80105021 A EP 80105021A EP 0025157 B1 EP0025157 B1 EP 0025157B1
Authority
EP
European Patent Office
Prior art keywords
air
ozone
water
fluid
spray
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.)
Expired
Application number
EP80105021A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0025157A1 (de
Inventor
Bruno Bachhofer
Anton Locher
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
Priority to AT80105021T priority Critical patent/ATE2633T1/de
Publication of EP0025157A1 publication Critical patent/EP0025157A1/de
Application granted granted Critical
Publication of EP0025157B1 publication Critical patent/EP0025157B1/de
Expired legal-status Critical Current

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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
    • F24F3/12—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
    • F24F3/14—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 humidification; by dehumidification
    • 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
    • F24F8/117—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 wet filtering
    • F24F8/133—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 wet filtering by direct contact with liquid, e.g. with sprayed liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
    • F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles
    • F24F2006/146—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles using pressurised water for spraying
    • 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

Definitions

  • the invention relates to a method for air washing in air conditioning systems using a spray chamber through which the air is passed and in which a spray is generated by spraying and collecting a supply of scrubber water.
  • Such an air wash e.g. known from US-A No. 3065043, causes humidification of the air and flushing out dust particles.
  • air-conditioned rooms with a particularly high number of germs e.g. in hospitals, however, there is the additional problem of air disinfection, which has so far not been solved satisfactorily.
  • chemical disinfectants to the circulating spray water, it is known that extremely high numbers of colonies are found in these spray chambers.
  • disinfectants have their own problems, especially odor problems in the common rooms. Furthermore, bacterial growth in the ventilation ducts of air conditioning systems and the consequent re-germination of the air could not be prevented.
  • Air disinfection with ozone fails due to the control problem of adding only as much ozone as can be reduced by the undesirable organic substances present in the air at the moment. It is important to avoid excess ozone in the air we breathe under all circumstances, as this is toxic.
  • the maximum workplace concentration (MAK value) specified in the relevant regulations of the health authorities is 0.1 ppm ozone.
  • the invention is based on the object of proposing an air disinfection method which can be used in air conditioning systems and which has no annoying or harmful side effects and, in particular in rooms with high demands on air hygiene, substantially improves the previous situation.
  • This object is achieved according to the invention in an air washing process of the type described in the introduction in that the scrubber water is treated with ozone in a circulating circuit and contains a halogen which reacts with ozone.
  • Air disinfection takes place in two stages or can be seen under two aspects.
  • germs as well as other undesirable water constituents are washed out of the air, get into the ozone treatment unit with the water and there are literally burned by contact with concentrated ozone and then filtered out.
  • the bromine (hypobromite or bromine dioxide) activated by ozone creates a germ-free environment in the washer and, as has been shown, also in the ventilation ducts of the air conditioning system. Bacterial colonies no longer occur there.
  • the permanent disinfection of the second type does not only take place in the spray water.
  • active oxygen is rather given to the air flow during air humidification, which results in a considerable reduction in the number of bacteria in the air-conditioned rooms and the well-being of the patients, e.g. during long-term operations or in intensive care units, influenced very favorably.
  • the bromine content of the spray water is not consumed.
  • the oxidation processes and the reduction processes linked to disinfection are reversible and the corresponding bromine states form a balance. This can be measured by measuring the redox potential and can also be controlled by influencing the amount of ozone accordingly.
  • the invention In addition to the reliable killing of all germs and viruses in the conditioned air, the invention also has the advantage that the maintenance and cleaning effort for the laundry chambers can be sustainably reduced.
  • a spray chamber 1 is switched into the collecting duct of an air conditioning system and the air flow passes through it in the direction of the arrow.
  • spray nozzles 2 and in the right part baffle plates 3 are indicated schematically.
  • a circulation pump 5 sucks off the scrubbing water at the bottom of the spray chamber and conveys it to the spray nozzles 2.
  • Another circulation circuit runs from the water supply 4 back to the water supply 4 via a circulation pump 6 and an ozone treatment unit 7.
  • the ozone treatment unit 7 consists of a container which is partially filled with fine filter gravel and has a filter star 9 at the outlet.
  • an ozone generator 10 Arranged on the inside of the container lid is an ozone generator 10, which is fed from the outside with dried compressed air and high voltage.
  • the ozone gas exits through a check valve 11 on the underside of the ozone generator.
  • the check valve 11 is surrounded by a mixer chamber 12, which connects to the ozone generator 10 at the bottom and Contains baffles.
  • the water supply line is inserted through the lid of the container and connected to the bottom of the mixer chamber 12. In the mixer chamber, the water entering through the feed line is mixed intensively with the ozone-containing gas emerging from the check valve 11, after which it leaves the mixer chamber again in the radial direction.
  • the spray water contains a nutrient-free complexing agent to avoid limescale deposits.
  • the filter is backwashed with the help of facilities not shown, using the scrubbing water.
  • This backwashing water discharged into the sewer is then replaced by fresh water, the rinsed substances being replenished by adding an appropriate amount of hydrobromic acid and complexing agents.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Central Air Conditioning (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Treating Waste Gases (AREA)
  • Separation Of Particles Using Liquids (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
EP80105021A 1979-08-29 1980-08-23 Verfahren zur Luftwäsche in Klimaanlagen Expired EP0025157B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80105021T ATE2633T1 (de) 1979-08-29 1980-08-23 Verfahren zur luftwaesche in klimaanlagen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792934846 DE2934846A1 (de) 1979-08-29 1979-08-29 Verfahren zur luftwaesche in klimaanlagen
DE2934846 1979-08-29

Publications (2)

Publication Number Publication Date
EP0025157A1 EP0025157A1 (de) 1981-03-18
EP0025157B1 true EP0025157B1 (de) 1983-02-23

Family

ID=6079535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105021A Expired EP0025157B1 (de) 1979-08-29 1980-08-23 Verfahren zur Luftwäsche in Klimaanlagen

Country Status (5)

Country Link
US (1) US4410339A (enrdf_load_stackoverflow)
EP (1) EP0025157B1 (enrdf_load_stackoverflow)
JP (1) JPS5659141A (enrdf_load_stackoverflow)
AT (1) ATE2633T1 (enrdf_load_stackoverflow)
DE (1) DE2934846A1 (enrdf_load_stackoverflow)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60500851A (ja) * 1983-02-18 1985-06-06 クザルノ，ヤヌ−シユ 空気清浄装置
JPS6058228A (ja) * 1983-09-09 1985-04-04 Senichi Masuda 空気清浄装置
US4601886A (en) * 1984-05-24 1986-07-22 Hudgins Richard G Air treatment apparatus
JPS6261615A (ja) * 1985-09-10 1987-03-18 Fuji Electric Co Ltd 気体の除塵・除菌装置
US5017351A (en) * 1988-02-11 1991-05-21 Rafson Harold J Process for removing volatile organic compounds from air streams
JPH02135110A (ja) * 1988-11-16 1990-05-24 Daiei Sangyo Kk 汚濁空気・汚濁水の浄化処理装置
DE4408303A1 (de) * 1993-09-14 1995-03-16 Hatz Walter Verfahren und Einrichtung zum Entkeimen von Luftwäschern in Klimaanlagen
US5878912A (en) 1995-12-26 1999-03-09 Stein; Myron Duct disinfecting method and apparatus
RU2138321C1 (ru) * 1998-08-25 1999-09-27 Меньщиков Владимир Михайлович Устройство для отсоса и очистки воздуха
SE9903177L (sv) * 1999-09-08 2001-05-08 Otre Ab Apparat och metod för behandling av luft
US6503547B1 (en) * 1999-11-18 2003-01-07 Grupo Interozone Method for diffusing ozone in a closed environment
GB9927617D0 (en) * 1999-11-24 2000-01-19 Ump Co Ltd Biocide air delivery systems
US6743279B2 (en) * 2002-05-17 2004-06-01 Airborne Contaminant Systems, Llc Air purification device for air handling units
US7105039B2 (en) * 2003-02-26 2006-09-12 Scott Decker Ozone remediation apparatus and methods
WO2017143599A1 (zh) * 2016-02-27 2017-08-31 孙华 空气净化方法及系统
DE202018005053U1 (de) * 2018-11-01 2020-02-05 Peter Mittelsdorf Luftreinigungsvorrichtung
CN113074501A (zh) * 2020-01-06 2021-07-06 青岛海尔电冰箱有限公司 用于冰箱的除农残装置以及冰箱

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2090466A (en) * 1935-03-30 1937-08-17 Francis R Bichowsky Means for humidifying and drying air
DE715595C (de) * 1936-12-08 1942-01-03 Henri Bernard Beer Verfahren und Vorrichtung zur Reinigung und Sterilisierung von Luft mittels Ozon
US2207774A (en) * 1938-12-07 1940-07-16 Tubize Chatillon Corp Gas conditioning
US2405553A (en) * 1941-06-07 1946-08-13 Donald K Allison Means and method of ozonizing liquids
US2606150A (en) * 1948-04-08 1952-08-05 Air Reduction Dispersion of gaseous treating agents in liquids
US2771416A (en) * 1950-03-06 1956-11-20 Edmund J Ryan Water purification
US2874032A (en) * 1955-10-04 1959-02-17 Borg Warner Dissolver
FR1176463A (fr) * 1957-06-03 1959-04-10 Dispositif pour l'enrichissement de l'air de salles communes, de salles de spectacles et de tous lieux publics
US3065043A (en) * 1958-05-23 1962-11-20 Midland Ross Corp Air purification
DE1256862B (de) * 1958-12-20 1967-12-21 Otto Heinz Brandi Dipl Ing Luftwaescher fuer Klimaanlagen
US3366441A (en) * 1964-02-10 1968-01-30 Ultra Dynamics Corp Ultraviolet system for control of algae and slime within humidity control and similar systems
US3805481A (en) * 1964-04-23 1974-04-23 E Armstrong Apparatus for and process of treating liquids with a gas
US3326747A (en) * 1965-05-17 1967-06-20 Sol B Wiczer Disinfecting solution and method
US3445001A (en) * 1967-06-02 1969-05-20 Ozonator Corp Water purifier
DE2301127A1 (de) * 1970-06-19 1974-07-18 Plafog Planungs Und Forschungs Verfahren zur langzeitdesinfektion von wasser
DE2060895A1 (de) * 1970-12-10 1972-06-15 Sheikh Morris I Luftsterilisationsverfahren
DE2156571C3 (de) * 1971-11-15 1981-07-30 Hans-Ulrich Ing.(Grad.) 6200 Wiesbaden Klein Verwendung eines Filterbettes in Vorrichtung zur komplexen Wasseraufbereitung mit Ozon
DE2332058A1 (de) * 1973-06-23 1975-01-16 Demag Ag Verfahren zur entkeimung von in abfuellbehaeltern oder flaschen abzufuellendem trinkwasser
DE2450731A1 (de) * 1974-10-25 1976-04-29 Hydro Elektrik Gmbh Verfahren zur wasseraufbereitung mit ozon
DE2632298A1 (de) * 1976-07-17 1978-01-19 Heinz Hoelter Verfahren zur reinigung von rohgasen, vorzugsweise kraftwerksabgasen, durch einsatz von saeuren und oder salzen der halogengruppe
JPS5393170A (en) * 1977-01-28 1978-08-15 Asahi Glass Co Ltd Deodorizing method for exhaust gas or waste liquid
JPS6048219B2 (ja) * 1978-01-24 1985-10-25 三菱電機株式会社 低級アルデヒド類を含む気体の浄化方法
JPS5561920A (en) * 1978-11-01 1980-05-10 Mitsubishi Electric Corp Deodorizing method

Also Published As

Publication number Publication date
EP0025157A1 (de) 1981-03-18
ATE2633T1 (de) 1983-03-15
DE2934846A1 (de) 1981-03-19
JPS5659141A (en) 1981-05-22
DE2934846C2 (enrdf_load_stackoverflow) 1990-10-31
US4410339A (en) 1983-10-18

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