DE102005013987B3 - Apparatus for neutralizing electrically charged aerosol particles flowing in tube, comprising ante-chamber(s) supplied with ionized gas over gas-permeable region(s) of tube side(s) - Google Patents
Apparatus for neutralizing electrically charged aerosol particles flowing in tube, comprising ante-chamber(s) supplied with ionized gas over gas-permeable region(s) of tube side(s) Download PDFInfo
- Publication number
- DE102005013987B3 DE102005013987B3 DE200510013987 DE102005013987A DE102005013987B3 DE 102005013987 B3 DE102005013987 B3 DE 102005013987B3 DE 200510013987 DE200510013987 DE 200510013987 DE 102005013987 A DE102005013987 A DE 102005013987A DE 102005013987 B3 DE102005013987 B3 DE 102005013987B3
- Authority
- DE
- Germany
- Prior art keywords
- tube
- chamber
- ante
- ionized gas
- antechamber
- 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 - Fee Related
Links
- 239000002245 particle Substances 0.000 title claims abstract description 19
- 239000000443 aerosol Substances 0.000 title claims abstract description 17
- 230000003472 neutralizing effect Effects 0.000 title abstract description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 10
- 150000002500 ions Chemical class 0.000 description 11
- 238000000034 method Methods 0.000 description 3
- 150000001450 anions Chemical class 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000002837 heart atrium Anatomy 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
- H05F3/00—Carrying-off electrostatic charges
- H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Neutralisierung elektrisch geladener, gasgetragener Partikel, auch Aerosole genannt.The The invention relates to a device for neutralization electrically charged, gas-borne particles, also called aerosols.
Partikel tragen häufig nach außen hin eine elektrische Ladung, die unerwünscht ist und mit geeigneten Methoden „neutralisiert" werden muss. Dazu sind verschiedene Lösungen bekannt.particle wear frequently outward towards an electrical charge that is undesirable and with suitable Methods must be "neutralized" are different solutions known.
In
In
Aufgabe der Erfindung ist es, eine Vorrichtung zur Neutralisierung geladener Teilchen anzugeben, die auch bei wechselnder und in der Größe schwankender Ladung der Teilchen gute Ergebnisse erzielt. Zudem soll die Erfindung dies mit möglichst geringem Aufwand an Regelungstechnik tun.task The invention is a device for neutralization of charged Specify particles that fluctuate even when changing and in size Charge the particles achieved good results. In addition, the invention with as little as possible Expenditure of control engineering do.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass an wenigstens einer Längsseite eines Rohres bzw. Kanales (im folgenden Rohr), durch das die elektrisch geladenen Partikel strömen, wenigstens eine Vorkammer angeordnet ist, der Rohrmantel unterhalb jeder Vorkammer gedrosselt gasdurchlässig ist und jede Vorkammer einen äußeren Anschluss zur Zuführung eines ionisierten Gases aufweist.According to the invention Task solved by that on at least one longitudinal side a pipe or channel (hereinafter tube), through which the electrical charged particles flow, at least one pre-chamber is arranged, the pipe jacket below each pre-chamber is throttled gas-permeable and each prechamber an external connection to the feed an ionized gas.
In einer vorzugsweisen Ausführung sind beiderseits des Rohres zwei einander gegenüberliegende, längliche Vorkammern angeordnet, durch die jeweils ein mit Ionen beladener Gasstrom entgegengesetzter Polariät eingeleitet wird. In dieser Ausführung findet eine quasi-gleichzeitige Zugabe der beiden Ionengasströme zum Aerosol statt.In a preferred embodiment are on both sides of the tube two opposite, elongated Prechambers arranged by each one loaded with ions Gas flow of opposite polarity is initiated. In this Execution finds a quasi-simultaneous addition of the two ion gas streams to the aerosol instead of.
Es wurde gefunden, dass die durch das Rohr strömenden Teilchen auch bei unterschiedlicher und in der Größe schwankender Ladung ab einer bestimmten Mindeststärke des Ionenstroms zuverlässig neutralisiert werden. Ein Überschuss an Ionen hat dabei keine negativen Auswirkungen auf das Ergebnis. Die Vorrichtung eignet sich daher zur Neutralisation von Aerosolströmen, die mit verschiedenen Aerosolgeneratoren und Partikelmaterialien und Prozessparametern erzeugt wurden. Es wurde außerdem gefunden, dass die Änderung des Ladungszustandes der Aerosolpartikel erfolgt, ohne dass es zu signifikanten Partikelablagerungen im Rohr kommt.It It was found that the particles flowing through the pipe are also different and fluctuating in size Charge reliably neutralized above a certain minimum intensity of the ion current become. A surplus anions has no negative effects on the result. The device is therefore suitable for the neutralization of aerosol streams, the with different aerosol generators and particulate materials and Process parameters were generated. It was also found that the change the state of charge of the aerosol particles takes place without being significant Particle deposits in the pipe comes.
Bei Verwendung von nur einer Ionenpolarität („unipolar") kann die Vorrichtung auch als Aufladestufe für einen Elektroabscheider eingesetzt werden.at Using only one ion polarity ("unipolar"), the device can also be used as a charging step for one Electric separators are used.
Zur Drosselung des Gasstromes durch eine Vorkammer in das Rohr sind im Mantel des Rohres an der Begrenzungsfläche zur Vorkammer mehrere kleine Bohrungen oder ein poröses Material vorgesehen, deren Durchlässigkeit in der Summe gegenüber dem Ionengasstrom strömungstechnisch eine Drossel darstellt und Ionenpenetration gewährleistet.to Throttling of the gas flow through a prechamber into the pipe in the mantle of the tube at the boundary surface to the antechamber several small Holes or a porous Material provided whose permeability in the sum compared to the Ion gas flow fluidically represents a throttle and ensures ion penetration.
Zur Erzeugung des Ionengasstroms wird z. B. Luft über ein unter Hochspannung stehendes Elektrodenpaar oder über radioaktive Elemente geleitet.to Generation of the ion gas flow is z. B. air over a high voltage standing electrode pair or over passed radioactive elements.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher dargestellt. In den Zeichnungen zeigenThe The invention is illustrated in more detail below with reference to an exemplary embodiment. In the drawings show
Ein
Aerosol mit elektrisch geladenen Teilchen durchströmt ein Rohr
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510013987 DE102005013987B3 (en) | 2005-03-26 | 2005-03-26 | Apparatus for neutralizing electrically charged aerosol particles flowing in tube, comprising ante-chamber(s) supplied with ionized gas over gas-permeable region(s) of tube side(s) |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200510013987 DE102005013987B3 (en) | 2005-03-26 | 2005-03-26 | Apparatus for neutralizing electrically charged aerosol particles flowing in tube, comprising ante-chamber(s) supplied with ionized gas over gas-permeable region(s) of tube side(s) |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102005013987B3 true DE102005013987B3 (en) | 2006-07-20 |
Family
ID=36643281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200510013987 Expired - Fee Related DE102005013987B3 (en) | 2005-03-26 | 2005-03-26 | Apparatus for neutralizing electrically charged aerosol particles flowing in tube, comprising ante-chamber(s) supplied with ionized gas over gas-permeable region(s) of tube side(s) |
Country Status (1)
Country | Link |
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DE (1) | DE102005013987B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007042436B3 (en) * | 2007-09-06 | 2009-03-19 | Brandenburgische Technische Universität Cottbus | Method and device for charging, reloading or discharging of aerosol particles by ions, in particular into a diffusion-based bipolar equilibrium state |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417293A (en) * | 1980-10-14 | 1983-11-22 | Office National D'etudes Et De Recherches Aerospatiales | Methods and apparatus for transferring electric charges of different signs into a space zone, and application to static electricity eliminators |
DE19909333A1 (en) * | 1998-03-04 | 1999-11-11 | Univ Minnesota | Production of standardized sub-micron, neutral particles by evaporation and neutralization of charged aerosols |
US6544484B1 (en) * | 1999-06-18 | 2003-04-08 | Tsi Incorporated | Aerosol charge adjusting apparatus employing a corona discharge |
DE10243338A1 (en) * | 2002-09-18 | 2004-04-08 | Gerhard-Mercator-Universität Duisburg Fakultät für Ingenieurwissenschaften | Production of aerosols, used in production of corona discharges and radioactive preparations, involves applying electrical potential to electrode close to outlet opening from which droplets are released |
-
2005
- 2005-03-26 DE DE200510013987 patent/DE102005013987B3/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4417293A (en) * | 1980-10-14 | 1983-11-22 | Office National D'etudes Et De Recherches Aerospatiales | Methods and apparatus for transferring electric charges of different signs into a space zone, and application to static electricity eliminators |
DE19909333A1 (en) * | 1998-03-04 | 1999-11-11 | Univ Minnesota | Production of standardized sub-micron, neutral particles by evaporation and neutralization of charged aerosols |
US6145391A (en) * | 1998-03-04 | 2000-11-14 | Regents Of The University Of Minnesota | Charged particle neutralizing apparatus and method of neutralizing charged particles |
US6544484B1 (en) * | 1999-06-18 | 2003-04-08 | Tsi Incorporated | Aerosol charge adjusting apparatus employing a corona discharge |
DE10243338A1 (en) * | 2002-09-18 | 2004-04-08 | Gerhard-Mercator-Universität Duisburg Fakultät für Ingenieurwissenschaften | Production of aerosols, used in production of corona discharges and radioactive preparations, involves applying electrical potential to electrode close to outlet opening from which droplets are released |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007042436B3 (en) * | 2007-09-06 | 2009-03-19 | Brandenburgische Technische Universität Cottbus | Method and device for charging, reloading or discharging of aerosol particles by ions, in particular into a diffusion-based bipolar equilibrium state |
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8100 | Publication of patent without earlier publication of application | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |