EP0000738A1 - An air purifier of the regenerating type. - Google Patents

An air purifier of the regenerating type. Download PDF

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Publication number
EP0000738A1
EP0000738A1 EP7878100517A EP78100517A EP0000738A1 EP 0000738 A1 EP0000738 A1 EP 0000738A1 EP 7878100517 A EP7878100517 A EP 7878100517A EP 78100517 A EP78100517 A EP 78100517A EP 0000738 A1 EP0000738 A1 EP 0000738A1
Authority
EP
European Patent Office
Prior art keywords
air purifier
molecules
radiating means
ozone
electron
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
EP7878100517A
Other languages
German (de)
French (fr)
Other versions
EP0000738B1 (en
Inventor
Niels Brundbjerg
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 EP0000738A1 publication Critical patent/EP0000738A1/en
Application granted granted Critical
Publication of EP0000738B1 publication Critical patent/EP0000738B1/en
Expired 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
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation

Definitions

  • the invention relates to an air purifier of the regenerating type, which comprises a radiating means such as a.mercury lamp, and in which the air flows through an electric field in an electron-cloud forming member.
  • An air purifier comprising a mercury vapour lamp is known from, for example, British patent specification No. 1,400,519.
  • the irradiation with ultraviolet rays changes the nature of the passing pollutant.
  • the invention as claimed is intended to provide an air purifier which is able to sterilize air and neutralize the ozone molecules in a more efficient manner.
  • the air purifier according to the invention is characterised by the radiating means being surrounded by a charge absorbing, non-conductive casing.
  • the non-conductive casing is made of a soft, optionally plumbiferous plastic.
  • the air purifier according to the invention operates in accordance with the regeneration principle. It comprises a radiating means 1 such as a mercury lamp, emitting both electrons and X-rays.
  • a radiating means 1 such as a mercury lamp, emitting both electrons and X-rays.
  • the X-ray wave length is in the range of 300-400 nm.
  • a voltage of 8000 V the wave length range is increased to about 165 nm.
  • a destruction of DNA molecules and consequently a destruction of germs and viruses takes place.
  • a cell division takes place so quickly that the cells produced cannot survive.
  • the electron bombardment the oxygen, hydrogen and nitrogen bound to heavy molecules such as sulphur, chlorine or metals, are liberated.
  • the heavy molecules are detected and captured by the chamber material, while the liberated oxygen molecules produce ozone molecules. These ozone molecules are, however, positively charged due to the fact that the heavy particles detected and captured by the chamber material are negatively charged (the chamber material must be non-conductive).
  • An electron-cloud forming member preferably a capacitor-like member 4, is placed behind the radiating means 1, said member generating negatively charged 0 3 molecules. When a positively charged 0 3 molecule meets a negatively charged 0 3 molecule, the oppositely charged molecules recombine to produce 0 2 molecules.
  • the tension across the capacitor-like member 4 is for instance of the magnitude 8000 V, which,corresponds substantially to the voltage necessary for the radiating means 1 to emit X-rays having wave lengths down to 165 nm.
  • Fig. 2 shows a voltage multiplier M comprising a sufficient number of capacitors C mutually connected through rectifier diodes in such a manner that the charge can only be transmitted in one direction.
  • Fig. 2 only shows 10 capacitors.
  • the capacitor-like member 4 is composed of circuit carts 7 having metal coatings 7a and 7b on both sides. The surfaces of these coatings are suited for emission of electrons.
  • the number of plates 7 may be varied.
  • the surface area of each plate is 10 x 10 cm 2 .
  • the mutual distance between the plates is for instance 1 cm.
  • the casing 2 surrounding the radiating means 1 and the capacitor-like member 4 is composed of a soft, optionally plumbiferous plastic.
  • a separate plumbi- . ferous coating may also be provided on the outside of the casing 2.
  • a blower 3 is situated at an inlet opening 9 constructed in such a manner that radiation direct to the surroundings is impossible.
  • An air purifier with a power consumption of 80 W can treat 6 0 m 3 air per hour.
  • a choke coil is inserted between the output of the voltage multiplier M and the phase terminal.
  • the power supplied at the high voltage is relatively low. Furthermore, a DC-discharge from the multiplier only occurs at every other half wave of the voltage of the mains.
  • the air purifier according to the invention is inexpensive to produce.
  • the most expensive component is the casing.
  • the oxygen content in a room is increased no more than 6-8%.
  • the air purifier which may be varied in many ways without deviating from the scope of the invention, is mainly intended for aircrafts, automobiles or hospitals.
  • the purifier may, however, also be used industrially or in offices.
  • the air purifier improves the air for the employees. It is easy to mount, since it does not require ventilating ducts to the surroundings. Furthermore, no thermal loss occurs. In slaughterhouses it increases the keeping quality of the meat since only viruses and bacteria are killed.

Abstract

An air purifier comprising a mercury lamp (1) emitting electrons and generating ozone during the purification. The air purifier is surrounded by a non-conductive casing (2) absorbing molecules negatively charged due to the emitted electrons. As a result the ozone molecules become positively charged and may therefore recombine with negatively charged ozone molecules to produce neutral oxygen molecules, of. Figure 1.

Description

  • The invention relates to an air purifier of the regenerating type, which comprises a radiating means such as a.mercury lamp, and in which the air flows through an electric field in an electron-cloud forming member.
  • An air purifier comprising a mercury vapour lamp is known from, for example, British patent specification No. 1,400,519. The irradiation with ultraviolet rays changes the nature of the passing pollutant.
  • It is also known to treat and purify air by passing the air through an electrostatic field. As a result ozone is, however, produced, cf. e.g. the German Offenlegungsschrift Nos. 2,452,824 and 2,205,885. 03 can be reduced to 02 by oxidizing a metallic material,.cf. the above-mentioned British patent specification. This filter method is, however, not particularly efficient. Furthermore, the filter material must be replaced from time to time.
  • The invention as claimed is intended to provide an air purifier which is able to sterilize air and neutralize the ozone molecules in a more efficient manner.
  • The air purifier according to the invention is characterised by the radiating means being surrounded by a charge absorbing, non-conductive casing.
  • As a result the ozone molecules become positively charged, whereby a reaction with negatively charged ozone molecules and consequently a neutralisation is facilitated.
  • According to a preferred embodiment of the invention the non-conductive casing is made of a soft, optionally plumbiferous plastic.
  • One method of carrying out the invention is described in detail below with reference to drawings, which illustrate only one specific embodiment, in which
    • Fig. 1 illustrates the air purifier according to the invention, and
    • Fig. 2 illustrates a voltage multiplier forming part of the air purifier.
  • The air purifier according to the invention operates in accordance with the regeneration principle. It comprises a radiating means 1 such as a mercury lamp, emitting both electrons and X-rays. By applying a voltage of 220 VAC, the X-ray wave length is in the range of 300-400 nm. By applying a voltage of 8000 V, the wave length range is increased to about 165 nm. At a wave length of 210 nm a destruction of DNA molecules and consequently a destruction of germs and viruses takes place. At a wave length of 250 nm a cell division takes place so quickly that the cells produced cannot survive. By the electron bombardment the oxygen, hydrogen and nitrogen bound to heavy molecules such as sulphur, chlorine or metals, are liberated. The heavy molecules are detected and captured by the chamber material, while the liberated oxygen molecules produce ozone molecules. These ozone molecules are, however, positively charged due to the fact that the heavy particles detected and captured by the chamber material are negatively charged (the chamber material must be non-conductive). An electron-cloud forming member, preferably a capacitor-like member 4, is placed behind the radiating means 1, said member generating negatively charged 03 molecules. When a positively charged 03 molecule meets a negatively charged 03 molecule, the oppositely charged molecules recombine to produce 02 molecules.
  • The tension across the capacitor-like member 4 is for instance of the magnitude 8000 V, which,corresponds substantially to the voltage necessary for the radiating means 1 to emit X-rays having wave lengths down to 165 nm.
  • Fig. 2 shows a voltage multiplier M comprising a sufficient number of capacitors C mutually connected through rectifier diodes in such a manner that the charge can only be transmitted in one direction. Fig. 2 only shows 10 capacitors.
  • The capacitor-like member 4 is composed of circuit carts 7 having metal coatings 7a and 7b on both sides. The surfaces of these coatings are suited for emission of electrons. The number of plates 7 may be varied. The surface area of each plate is 10 x 10 cm2. The mutual distance between the plates is for instance 1 cm. The casing 2 surrounding the radiating means 1 and the capacitor-like member 4 is composed of a soft, optionally plumbiferous plastic. A separate plumbi- . ferous coating may also be provided on the outside of the casing 2. A blower 3 is situated at an inlet opening 9 constructed in such a manner that radiation direct to the surroundings is impossible.
  • An air purifier with a power consumption of 80 W can treat 60 m3 air per hour.
  • A choke coil is inserted between the output of the voltage multiplier M and the phase terminal.
  • The power supplied at the high voltage is relatively low. Furthermore, a DC-discharge from the multiplier only occurs at every other half wave of the voltage of the mains.
  • The air purifier according to the invention is inexpensive to produce. The most expensive component is the casing.
  • By using the air purifier according to the invention the oxygen content in a room is increased no more than 6-8%.
  • The air purifier, which may be varied in many ways without deviating from the scope of the invention, is mainly intended for aircrafts, automobiles or hospitals. The purifier may, however, also be used industrially or in offices. -When used industrially, the air purifier improves the air for the employees. It is easy to mount, since it does not require ventilating ducts to the surroundings. Furthermore, no thermal loss occurs. In slaughterhouses it increases the keeping quality of the meat since only viruses and bacteria are killed.

Claims (4)

1. An air purifier of the regenerating type, which comprises a radiating means such as a mercury lamp (1), and in which the air flows through an electric field in an electron-cloud forming member (4), characterised by
the radiating means (1) being surrounded by a charge absorbing, non-conductive casing (2).
2. An air purifier as claimed-in claim 1, characterised by the non-conductive casing (2) being of a soft, optionally plumbiferous plastic.
3. An air purifier as claimed in claim 1 or 2, characterised in that both the radiating means (1) and the electron-cloud forming member (4) are actuated by a voltage multiplier connected to the mains.
4. An air purifier as claimed in claims 1 - 3, characterised by the electron-cloud forming member (4) being a capacitor-like member.
EP78100517A 1977-08-04 1978-07-27 An air purifier of the regenerating type. Expired EP0000738B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK3499/77 1977-08-04
DK349977AA DK141541B (en) 1977-08-04 1977-08-04 Regeneration-type air purifier comprising an ozone lamp.

Publications (2)

Publication Number Publication Date
EP0000738A1 true EP0000738A1 (en) 1979-02-21
EP0000738B1 EP0000738B1 (en) 1981-04-08

Family

ID=8123588

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100517A Expired EP0000738B1 (en) 1977-08-04 1978-07-27 An air purifier of the regenerating type.

Country Status (7)

Country Link
US (1) US4203948A (en)
EP (1) EP0000738B1 (en)
CA (1) CA1076770A (en)
DE (1) DE2860600D1 (en)
DK (1) DK141541B (en)
IT (1) IT1112648B (en)
NO (1) NO144840C (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL57677A0 (en) * 1979-06-27 1979-10-31 Amcor Ltd An improved electrostatic air filter
US5667563A (en) * 1995-07-13 1997-09-16 Silva, Jr.; John C. Air ionization system
DE19650585C2 (en) * 1996-12-06 2001-11-22 Appbau Rothemuehle Brandt Method and device for electrically charging and separating particles that are difficult to separate from a gas fluid
US6149717A (en) * 1997-01-06 2000-11-21 Carrier Corporation Electronic air cleaner with germicidal lamp
US5879435A (en) * 1997-01-06 1999-03-09 Carrier Corporation Electronic air cleaner with germicidal lamp
US5938823A (en) * 1997-04-18 1999-08-17 Carrier Corporation Integrated electrostatic collection and microwave sterilization for bioaerosol air purification
US20020098109A1 (en) * 1997-09-17 2002-07-25 Jerry Nelson Method and apparatus for producing purified or ozone enriched air to remove contaminants from fluids
US6086657A (en) * 1999-02-16 2000-07-11 Freije; Joseph P. Exhaust emissions filtering system
JP2001239131A (en) * 2000-02-29 2001-09-04 Mamoru Nakasuji Desulfurization/denitration equipment and boiler equipment
DE10133831C1 (en) * 2001-07-12 2003-04-10 Eads Deutschland Gmbh Method and device for the selective removal of gaseous pollutants from the ambient air
WO2003026799A1 (en) * 2001-09-24 2003-04-03 The Johns Hopkins University Removal of elemental mercury by photoionization
US7156897B2 (en) * 2001-11-27 2007-01-02 Wen Sheree H Anti-infection and toxin elimination device
US6787782B1 (en) 2003-04-23 2004-09-07 B/E Aerospace, Inc. Ultraviolet-light vehicle air cleaning system
WO2004101101A2 (en) * 2003-05-08 2004-11-25 Eco-Rx, Inc. System for purifying and removing contaminants from gaseous fluids
US8211374B2 (en) 2003-07-18 2012-07-03 David Richard Hallam Air cleaning device
US20050016378A1 (en) * 2003-07-22 2005-01-27 Yuen Se Kit Electro-optical air sterilizer with ionizer & lights
HK1063577A2 (en) * 2004-06-23 2004-11-26 John Mfg Ltd Photoelectron air-purifying disinfecting and air conditioning machine.
HK1063576A2 (en) * 2004-06-23 2004-11-26 John Mfg Ltd Multi-function optoelectronic air purifier.
HK1063575A2 (en) * 2004-06-23 2004-11-26 John Mfg Ltd Multi-function optoelectronic air-conditioner.
US20060005703A1 (en) * 2004-06-30 2006-01-12 Chi-Hsiang Wang Ultraviolet air purifier having multiple charged collection plates
CN100424428C (en) * 2004-07-19 2008-10-08 袁仕杰 Three-in-one photoelectronic air purifier
EP1679123A1 (en) * 2005-01-11 2006-07-12 Balcke-Dürr GmbH Process and apparatus for electrical charging and separation of hardly removable particle
US7465338B2 (en) 2005-07-28 2008-12-16 Kurasek Christian F Electrostatic air-purifying window screen
US7300499B1 (en) * 2006-05-19 2007-11-27 Fleisher Aaron L Airplane air purifier
EP1864840A1 (en) * 2006-06-09 2007-12-12 Mario Besi Air filtration device for closed environments
US7559976B2 (en) * 2006-10-24 2009-07-14 Henry Krigmont Multi-stage collector for multi-pollutant control
US7582145B2 (en) * 2007-12-17 2009-09-01 Krigmont Henry V Space efficient hybrid collector
US7582144B2 (en) * 2007-12-17 2009-09-01 Henry Krigmont Space efficient hybrid air purifier
US7597750B1 (en) * 2008-05-12 2009-10-06 Henry Krigmont Hybrid wet electrostatic collector
DE102009042113A1 (en) * 2009-09-18 2011-04-21 Kma Umwelttechnik Gmbh Electrostatic precipitators and methods for separating particles from gases

Citations (2)

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FR2227017A1 (en) * 1973-04-24 1974-11-22 Gouttebessis Rene Air purificn. appts. for rooms - using discharge tube producing ozone with excess of negative ions
FR2240021A1 (en) * 1973-08-06 1975-03-07 Roche Janine Negative ion generating appts. - for re-establishing ionic equilibrium in dwelling houses, work rooms and hospitals

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US2489786A (en) * 1946-06-20 1949-11-29 Raytheon Mfg Co Electrical precipitator
US2490979A (en) * 1947-06-28 1949-12-13 Westinghouse Electric Corp Electrostatic precipitator
US2449681A (en) * 1947-07-23 1948-09-21 Richard R Cook Air purifier
US2980202A (en) * 1954-01-12 1961-04-18 Fred J Meyer Irradiating apparatus
US3072978A (en) * 1959-03-17 1963-01-15 Modern Aids Inc Air purifier
GB931625A (en) * 1961-02-24 1963-07-17 Engelhard Hanovia Inc Improvements in or relating to electrostatic precipitators
US3937967A (en) * 1974-04-16 1976-02-10 Kurt Steinitz Electronic air purifier with ozone suppression
FR2360199A1 (en) * 1976-07-27 1978-02-24 Pellin Henri NEGATIVE IONIZER

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2227017A1 (en) * 1973-04-24 1974-11-22 Gouttebessis Rene Air purificn. appts. for rooms - using discharge tube producing ozone with excess of negative ions
FR2240021A1 (en) * 1973-08-06 1975-03-07 Roche Janine Negative ion generating appts. - for re-establishing ionic equilibrium in dwelling houses, work rooms and hospitals

Also Published As

Publication number Publication date
IT1112648B (en) 1986-01-20
DK349977A (en) 1979-02-05
DK141541B (en) 1980-04-14
DE2860600D1 (en) 1981-04-30
US4203948A (en) 1980-05-20
EP0000738B1 (en) 1981-04-08
NO144840B (en) 1981-08-17
IT7826125A0 (en) 1978-07-26
DK141541C (en) 1980-10-06
NO144840C (en) 1981-11-25
CA1076770A (en) 1980-05-06
NO782503L (en) 1979-02-06

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