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DE10127035A1 - Cleaning and odor neutralizing of air in rooms involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using device made up of levels or cylindrical layers - Google Patents

Cleaning and odor neutralizing of air in rooms involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using device made up of levels or cylindrical layers

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Publication number
DE10127035A1
DE10127035A1 DE10127035A DE10127035A DE10127035A1 DE 10127035 A1 DE10127035 A1 DE 10127035A1 DE 10127035 A DE10127035 A DE 10127035A DE 10127035 A DE10127035 A DE 10127035A DE 10127035 A1 DE10127035 A1 DE 10127035A1
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DE
Germany
Prior art keywords
dielectric
air
thermal
plasma
boundary layer
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Withdrawn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
DE10127035A
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German (de)
Inventor
Hans-Werner Dehne
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE10127035A priority Critical patent/DE10127035A1/en
Publication of DE10127035A1 publication Critical patent/DE10127035A1/en
Priority to IT2002TO000284A priority patent/ITTO20020284A1/en
Withdrawn legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22Ionisation
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/2406Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00Generating plasma; Handling plasma
    • H05H1/24Generating plasma
    • H05H1/2406Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • H05H1/2443Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the plasma fluid flowing through a dielectric tube
    • H05H1/2465Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the plasma fluid flowing through a dielectric tube the plasma being activated by inductive coupling, e.g. using coiled electrodes
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2245/00Applications of plasma devices
    • H05H2245/10Treatment of gases
    • H05H2245/15Ambient air; Ozonisers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Health & Medical Sciences (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Fluid Mechanics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

The method involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using a device with a structured stainless steel wire mesh not exposed to the air to be cleaned held in contact with a dielectric by a spring, a stainless steel wire grid at a distance from the dielectric, a structured boron silicate dielectric between the grid and mesh and an operating voltage of between 1.5, 2 Volts at between 20, 30 kHz. The method involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using a device made up of levels or cylindrical layers with a structured stainless steel wire mesh (1) on the side not exposed to the air to be cleaned and held in contact with a dielectric (3) by a spring, a stainless steel wire grid (2) on the other side at a distance of 0.1 to 0.3 mm. from a dielectric, a structured boron silicate dielectric between the grid and mesh and an operating voltage of between 1.5 and 2 Volts at between 20 and 30 kHz.

Description

Fortschrittliche oxidative Abgas-Reinigungsverfahren setzen vermehrt nichtthermische Plasmen zur Zerstörung von Schadstoffen ein. Diese Plasmen erzeugen hochreaktive Radikale, die eine breite Palette gasgetragener Schadstoffe bei Umgebungsbedingungen ohne Zugabe eines Brennstoffes umsetzen können. Ein nichtthermisches Plasma ist dadurch gekennzeichnet, dass Elektronen nicht im thermischen Gleichgewicht mit den anderen Gasbestandteilen sind.Advanced oxidative exhaust gas purification processes are increasingly used non-thermal plasmas to destroy pollutants. These plasmas generate highly reactive radicals that contain a wide range of gas borne pollutants can implement in ambient conditions without adding a fuel. On Non-thermal plasma is characterized in that electrons are not in the thermal equilibrium with the other gas components.

Großvolumige nichtthermische Plasmen zum Entkeimen und zur Geruchsneutralisation der Luft lassen sich einfach mit Hilfe der stillen dielektrischen Grenzschicht-Entladung erzeugen. Die stille dielektrische Grenzschicht-Entladung tritt auf, wenn eine oder zwei Elektroden mit einem Dielektrikum bedeckt sind. Diese Anordnung wurde bereits von Siemens (1857) zur Bildung von Ozon entwickelt. Die stille dielektrische Grenzschicht-Entladung erzeugt selbst unterbrechende elektrische Entladungen, die relativ unabhängig von der angelegten Wechselspannung sind. Ohne das Dielektrikum würden wenige, örtlich fixierte, intensive Lichtbögen zwischen den Metallelektroden überspringen. Durch Einbringen des Dielektrikums und bei Anlegen einer hohen Wechselspannung wird eine große Anzahl an Mikro-Entladungen erzeugt, die statistisch räumlich und zeitlich über die Elektrodenflächen verteilt sind. Jede Mikro-Entladung ist eine Entstehungsquelle für ein nichtthermisches Plasma, das dadurch gekennzeichnet ist, dass energiereiche Elektronen hochreaktive freie Radikale erzeugen.Large volume non-thermal plasmas for sterilization and for Odor neutralization of the air can easily be done with the help of the silent dielectric Generate boundary layer discharge. The silent dielectric boundary discharge occurs when one or two electrodes are covered with a dielectric. This Arrangement was already developed by Siemens (1857) for the formation of ozone. The silent dielectric boundary layer discharge creates even interrupting ones electrical discharges that are relatively independent of the applied AC voltage are. Without the dielectric, a few, locally fixed, skip intense arcs between the metal electrodes. By bringing in of the dielectric and when a high AC voltage is applied becomes a large one Number of micro-discharges generated that statistically spatially and temporally over the Electrode surfaces are distributed. Every micro-discharge is a source of origin for a non-thermal plasma, which is characterized in that high-energy Electrons generate highly reactive free radicals.

In der üblichen technischen Anwendung werden stille dielektrische Grenzschicht- Entladungen mit Feldstärken bis über 100.000 V/cm bei Spannungen zwischen 5.000 bis über 100.000 V realisiert. Mit der erfindungsgemäßen Vorrichtung lassen sich bereits Feldstärken von über 50.000 V/cm bei Spannungen zwischen 1.500 und 2.000 V erreichen. In the usual technical application, silent dielectric boundary layer Discharges with field strengths up to over 100,000 V / cm at voltages between 5,000 up to 100,000 V. With the device according to the invention already field strengths of over 50,000 V / cm at voltages between 1,500 and 2,000 V to reach.  

Durch die energiereichen Elektronen kann u. a. Sauerstoff in seine zwei Atome aufgespalten werden; diese Atome besitzen ein hohes Energie- bzw. Oxidationspotential, das vor allem zur Zerstörung organischer Luftinhaltsstoffe verwendet werden kann. Nicht an der Oxidation beteiligte Sauerstoffatome können wieder zu Sauerstoffmolekülen - jedoch auch unvorteilhaft zu Ozon - rekombinieren.Due to the high-energy electrons, a. Oxygen into its two atoms be split up; these atoms have a high energy or Oxidation potential, especially for the destruction of organic air constituents can be used. Oxygen atoms not involved in the oxidation can recombine again to form oxygen molecules - but also disadvantageously to ozone.

Die Bildung von Ozon ist bei der Luftreinhaltung unerwünscht, da Ozon als Schadgas eingestuft wird.The formation of ozone is undesirable for air pollution control because ozone is a harmful gas is classified.

Mit der erfindungsgemäßen Vorrichtung (siehe Fig. 1, 2 und 3) wird die Ozon-Bildung so weit unterdrückt, dass sie unter 0,05 ppm liegt. Die Unterdrückung der Ozonbildung wird durch folgende Maßnahmen erreicht:
With the device according to the invention (see FIGS. 1, 2 and 3), the ozone formation is suppressed to such an extent that it is below 0.05 ppm. The following measures are used to suppress ozone formation:

  • - die Vorrichtung besitzt zwei Elektroden (1, 2) und ein Dielektrikum (3),- The device has two electrodes ( 1 , 2 ) and a dielectric ( 3 ),
  • - Elektroden (1, 2) und Dielektrikum (3) sind in zylindrischen oder ebenen Lagen angeordnet,Electrodes ( 1 , 2 ) and dielectric ( 3 ) are arranged in cylindrical or flat layers,
  • - als Elektroden werden Drahtgitter(-gewebe) aus Edelstahl verwendet,- wire meshes made of stainless steel are used as electrodes,
  • - das an der Seite, die der zu reinigenden Luft nicht ausgesetzt ist, befindliche strukturierte Drahtgewebe (1) wird durch Federspannung an das Dielektrikum (3) angepresst und besitzt eine Drahtstärke zwischen 0,1 und 0,5 mm und eine Maschenweite zwischen 1,5-5,5 mm,- The structured wire mesh ( 1 ) on the side that is not exposed to the air to be cleaned is pressed against the dielectric ( 3 ) by spring tension and has a wire thickness between 0.1 and 0.5 mm and a mesh size between 1, 5-5.5 mm,
  • - das an der Seite, die der zu reinigenden Luft ausgesetzt ist, befindliche Drahtgitter (2) ist mit einem Abstand von 0,1 bis 0,3 mm zum Dielektrikum (3) verlegt und besitzt mit eine Drahtstärke zwischen 0,1 und 0,5 mm und eine Maschenweite zwischen 1,5-5,5 mm,- The wire mesh ( 2 ) located on the side that is exposed to the air to be cleaned is laid at a distance of 0.1 to 0.3 mm from the dielectric ( 3 ) and has a wire thickness between 0.1 and 0, 5 mm and a mesh size between 1.5-5.5 mm,
  • - zwischen den beiden Drahtgittern (1, 2) befindet sich ein Dielektrikum (3), das auf der einen Seite glatt ist und auf der anderen Seite eine Struktur (Prägung) aufweist, - Between the two wire grids ( 1 , 2 ) there is a dielectric ( 3 ) which is smooth on one side and has a structure (embossing) on the other side,
  • - die Höhe der Struktur bestimmt den Abstand zwischen Dielektrikum (3) und Drahtgitter (2),- The height of the structure determines the distance between the dielectric ( 3 ) and wire mesh ( 2 ),
  • - das Dielektrikum (3) besteht aus Borosilikatglas mit einer Stärke von 0,5-2 mm,- The dielectric ( 3 ) consists of borosilicate glass with a thickness of 0.5-2 mm,
  • - an die Elektroden (1, 2) wird eine Wechselspannung zwischen 1.500 und 2.000 V mit einer Frequenz zwischen 20 und 30 kHz angelegt.- An alternating voltage between 1,500 and 2,000 V with a frequency between 20 and 30 kHz is applied to the electrodes ( 1 , 2 ).

Das hier beschriebene Verfahren wird zum Reinigen der Luft in Wohn- und Büroräumen und in Arbeitsstätten eingesetzt. Abhängig von der Schadstoffbelastung lassen sich mit der beschriebenen Vorrichtung Räume bis zu 100 m3 reinigen. The procedure described here is used to purify the air in living and office spaces and in workplaces. Depending on the level of pollutants, the described device can be used to clean rooms up to 100 m 3 .

Erläuterungen zu den Fig. 1, 2 und 3Explanations to FIGS. 1, 2 and 3

Fig. 1 ebene Anordnung der Elektroden und des Dielektrikums Fig. 1 flat arrangement of the electrodes and the dielectric

Fig. 2 Drahtgitter Fig. 2 wire mesh

Fig. 3 zylindrische Anordnung der Elektroden und des Dielektrikums 1 Drahtgewebeelektrode, die nicht der schadstoffbeladenen Luft ausgesetzt ist
2 Drahtgitterelektrode, die der schadstoffbeladenen Luft ausgesetzt ist
3 Dielektrikum
Fig. 3 cylindrical arrangement of the electrodes and the dielectric 1 wire mesh electrode, which is not exposed to the polluted air
2 wire grid electrode, which is exposed to the polluted air
3 dielectric

Claims (1)

Verfahren zur Entkeimung und Geruchsneutralisation der Luft in Räumen, nach dem Prinzip der nichtthermischen, plasma-chemischen Umsetzung bzw. der stillen Grenzschicht-Entladung arbeitend, wobei erfindungsgemäß die Ozonbildung soweit unterdrückt ist, dass sie unter der Nachweisgrenze von 0,05 ppm liegt, dadurch gekennzeichnet, dass
die in ebenen oder zylindrischen Lagen aufgebaute Vorrichtung
an der Seite, die der zu reinigenden Luft nicht ausgesetzt ist, ein unter Federspannung an ein Dielektrikum eng anliegendes, strukturiertes Drahtgewebe aus Edelstahl mit einer Drahtstärke zwischen 0,1 und 0,5 mm und einer Maschenweite zwischen 1,5-5,5 mm,
an der Seite, die der zu reinigenden Luft ausgesetzt ist, ein an ein Dielektrikum mit einem Abstand von 0,1 bis 0,3 verlegtes, strukturiertes Drahtgitter aus Edelstahl mit einer Drahtstärke zwischen 0,1 und 0,5 mm und einer Maschenweite zwischen 1,5-5,5 mm und
ein zwischen dem Drahtgitter und dem Drahtgewebe liegendes, auf der einen Seite glattes und auf der anderen Seite strukturiertes Dielektrikum aus Borosilikatglas mit einer Stärke von 0,5-2 mm aufweist und
mit einer Wechselspannung zwischen 1.500 und 2.000 V bei einer Frequenz zwischen 20 und 30 kHz betrieben wird.
Process for disinfection and odor neutralization of the air in rooms, working on the principle of non-thermal, plasma-chemical conversion or the silent boundary layer discharge, whereby according to the invention the ozone formation is suppressed to such an extent that it is below the detection limit of 0.05 ppm, thereby characterized that
the device built up in flat or cylindrical layers
on the side that is not exposed to the air to be cleaned, a structured wire mesh made of stainless steel with spring tension on a dielectric with a wire thickness between 0.1 and 0.5 mm and a mesh size between 1.5-5.5 mm .
On the side that is exposed to the air to be cleaned, a structured wire mesh made of stainless steel with a wire thickness of between 0.1 and 0.5 mm and a mesh size of 1 laid on a dielectric with a distance of 0.1 to 0.3 , 5-5.5 mm and
has a dielectric made of borosilicate glass with a thickness of 0.5-2 mm lying between the wire mesh and the wire mesh, smooth on one side and structured on the other side, and
is operated with an alternating voltage between 1,500 and 2,000 V at a frequency between 20 and 30 kHz.
DE10127035A 2001-06-02 2001-06-02 Cleaning and odor neutralizing of air in rooms involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using device made up of levels or cylindrical layers Withdrawn DE10127035A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10127035A DE10127035A1 (en) 2001-06-02 2001-06-02 Cleaning and odor neutralizing of air in rooms involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using device made up of levels or cylindrical layers
IT2002TO000284A ITTO20020284A1 (en) 2001-06-02 2002-03-29 PROCEDURE FOR THE STERILIZATION AND NEUTRALIZATION OF AIR ODORS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10127035A DE10127035A1 (en) 2001-06-02 2001-06-02 Cleaning and odor neutralizing of air in rooms involves non-thermal, plasma-chemical conversion or passive boundary layer discharge using device made up of levels or cylindrical layers

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IT (1) ITTO20020284A1 (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394477A2 (en) 2002-08-26 2004-03-03 Werner Schröder Ionization tube
DE10316378B3 (en) * 2003-04-10 2004-07-29 Stefan Zimmermann Discharge tube for ionization or ozone generation e.g. for cleaning and sterilizing applications, with inner and outer electrodes respectively associated with inner and outer surfaces of insulation sleeve
DE102004049783A1 (en) * 2004-10-12 2006-04-20 Je Plasmaconsult Gmbh Apparatus for processing goods with the aid of an electrical discharge
DE102007030915A1 (en) * 2007-07-03 2009-01-22 Cinogy Gmbh Device for the treatment of surfaces with a plasma generated by means of an electrode via a solid dielectric by a dielectrically impeded gas discharge
WO2011023478A1 (en) * 2009-08-25 2011-03-03 Inp Greifswald Leibniz-Institut Fuer Plasmaforschung Und Technologie E.V. Device for the planar treatment of areas of human or animal skin or mucous membrane surfaces by means of a cold atmospheric pressure plasma
WO2011110380A1 (en) * 2010-03-11 2011-09-15 Reinhausen Plasma Gmbh Method and arrangement for plasma treating a gas flow
US9345120B2 (en) 2012-08-07 2016-05-17 CYNOGY GmbH Electrode arrangement for a barrier plasma
DE102015118372A1 (en) * 2015-03-05 2016-09-08 Agency For Defense Development A plasma generating electrode module, a plasma generating electrode assembly and a plasma generating device using the same
DE102021203211B3 (en) 2021-03-30 2022-09-29 Dehne Entstaubungstechnik Ag Atmospheric dielectric barrier discharge device and manufacturing method therefor

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394477A2 (en) 2002-08-26 2004-03-03 Werner Schröder Ionization tube
EP1394477A3 (en) * 2002-08-26 2004-07-07 Werner Schröder Ionization tube
DE10316378B3 (en) * 2003-04-10 2004-07-29 Stefan Zimmermann Discharge tube for ionization or ozone generation e.g. for cleaning and sterilizing applications, with inner and outer electrodes respectively associated with inner and outer surfaces of insulation sleeve
DE102004049783A1 (en) * 2004-10-12 2006-04-20 Je Plasmaconsult Gmbh Apparatus for processing goods with the aid of an electrical discharge
DE102004049783B4 (en) * 2004-10-12 2009-03-19 Je Plasmaconsult Gmbh Apparatus for processing goods with the aid of an electrical discharge
DE102007030915A1 (en) * 2007-07-03 2009-01-22 Cinogy Gmbh Device for the treatment of surfaces with a plasma generated by means of an electrode via a solid dielectric by a dielectrically impeded gas discharge
WO2011023478A1 (en) * 2009-08-25 2011-03-03 Inp Greifswald Leibniz-Institut Fuer Plasmaforschung Und Technologie E.V. Device for the planar treatment of areas of human or animal skin or mucous membrane surfaces by means of a cold atmospheric pressure plasma
US10265116B2 (en) 2009-08-25 2019-04-23 Leibniz-Institut Fuer Plasmaforschung Und Technologie E.V Device for the planar treatment of areas of human or animal skin or mucous membrane surfaces by means of a cold atmospheric pressure plasma
WO2011110380A1 (en) * 2010-03-11 2011-09-15 Reinhausen Plasma Gmbh Method and arrangement for plasma treating a gas flow
DE102010011132A1 (en) * 2010-03-11 2011-09-15 Reinhausen Plasma Gmbh Method and arrangement for the plasma treatment of a gas stream
US9345120B2 (en) 2012-08-07 2016-05-17 CYNOGY GmbH Electrode arrangement for a barrier plasma
DE102015118372A1 (en) * 2015-03-05 2016-09-08 Agency For Defense Development A plasma generating electrode module, a plasma generating electrode assembly and a plasma generating device using the same
US9655224B2 (en) 2015-03-05 2017-05-16 Agency For Defense Dvelopment Plasma generation electrode module, plasma generation electrode assembly, and apparatus for generating plasma using the same
DE102015118372B4 (en) 2015-03-05 2020-01-23 Agency For Defense Development Plasma generation electrode module
DE102021203211B3 (en) 2021-03-30 2022-09-29 Dehne Entstaubungstechnik Ag Atmospheric dielectric barrier discharge device and manufacturing method therefor

Also Published As

Publication number Publication date
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ITTO20020284A0 (en) 2002-03-29

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