EP2696999B1 - Cleaning device - Google Patents
Cleaning device Download PDFInfo
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- EP2696999B1 EP2696999B1 EP12715656.0A EP12715656A EP2696999B1 EP 2696999 B1 EP2696999 B1 EP 2696999B1 EP 12715656 A EP12715656 A EP 12715656A EP 2696999 B1 EP2696999 B1 EP 2696999B1
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- Prior art keywords
- cleaning device
- contaminating particles
- ionizing means
- flow channel
- designed
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- 238000004140 cleaning Methods 0.000 title claims description 45
- 239000002245 particle Substances 0.000 claims description 44
- 238000011109 contamination Methods 0.000 claims description 15
- 230000005684 electric field Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims 1
- 238000002604 ultrasonography Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 239000000356 contaminant Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 12
- 210000002381 plasma Anatomy 0.000 description 11
- 239000012535 impurity Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
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- 238000009792 diffusion process Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
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- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005367 electrostatic precipitation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B6/00—Cleaning by electrostatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/40—Electrode constructions
- B03C3/45—Collecting-electrodes
- B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/34—Constructional details or accessories or operation thereof
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/10—Ionising electrode with two or more serrated ends or sides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C2201/00—Details of magnetic or electrostatic separation
- B03C2201/24—Details of magnetic or electrostatic separation for measuring or calculating of parameters, e.g. efficiency
Definitions
- a high voltage DC plasma may be used for cleaning when an electrostatic or electrodynamic field is generated between 2 electrodes between which the gas or medium to be cleaned flows.
- contaminants in the medium or impurity-forming particles or molecules in the field may be ionized.
- This so-called field ionization leaves a positively charged body of the particle or contaminant, which is directed under the influence of the ionization-inducing field and removed along the field lines from the region of ionization, or along the field lines from the place of ionization to one Cathode drifts.
- the voltage between the electrodes and thus the resulting field strength is suitably chosen, so that approximately all particles or all contaminating particles are ionized, one can speak of a plasma in which all contaminating particles are ionized.
- Some embodiments of the invention use, in addition to an ionization device, which can generate an electric field by means of two opposite electrodes on different sides of a flow channel, additionally an impurity sensor, which detects the degree of contamination of the medium to be cleaned.
- a control device is also coupled to the contamination sensor, which can change an operating mode of the ionization device depending on a determined characteristic of the contaminating particles, for example the concentration or the particle size of the impurities.
- the field strength of the ionization device can be adapted dynamically to the circumstances or to time-varying requirements.
- sensors used to detect contaminants in the medium to be cleaned are IR sensors, laser particle sensors (air particle counter) or ultrasonic sensors.
- IR sensors IR sensors
- laser particle sensors air particle counter
- ultrasonic sensors functioning according to other principles sensors can be used.
- any sensor or device by means of which an impurity in a medium or a substance differing from a medium within the medium can be recognized as an impurity sensor.
- FIG. 1 shows an embodiment of a cleaning device for removing contaminating particles 4 from a medium or from a gas or gas mixture.
- the gas or the contaminated medium flows along a flow channel in a flow direction 6, so that the gas or medium flowing in a flow direction 6 along the flow channel can be removed by means of the cleaning device.
- This is not to be understood as meaning that in fact a volume flow in the flow direction has to take place in order to be able to clean a medium or to ensure the desired functionality.
- the direction of flow 6 indicates that direction with respect to which the contaminating particles can be removed when they enter the cleaning device from the direction of flow 6. This need not necessarily be the case through a directed volumetric flow of the medium in the flow direction 6, but may also be the case, for example, for reasons of diffusion.
- the direction of flow 6 indicates that direction in which a cleaning action takes place, so that in the flow direction 6 downstream of the cleaning device, the concentration of the contaminating particles 4 after passing through the cleaning device is lower than before the passage through the cleaning device.
- the cleaning device comprises at least one ionization device 8, which has a pair of electrodes which oppose each other on different sides of the flow channel.
- a pair of electrodes which oppose each other on different sides of the flow channel.
- FIG. 1 For example, as one of the possible embodiments of the pair of electrodes, an anode 10 having a plurality of tips and a planar cathode 12 are shown.
- the specific shape of the electrodes which the shape of the generated electric field, which may be adapted to other geometric conditions and other conditions.
- the arrangement of cathode and anode can be reversed, ie, an application of voltage to the electrodes may be opposite to that in FIG FIG.
- the cleaning device furthermore has a control device 20 which is coupled both to the ionization device 8 and to the contamination sensor 16 is.
- the control device 20 is designed to vary an operating mode of the ionization device 8 as a function of the characteristic of the contaminating particles 4 determined by the contamination sensor 16. This can be done, for example, by varying the height of the voltage applied to the electrodes 10 and 12.
- a simple further possibility of the regulation is to switch off the concentration of the contaminating particles 4, the ionization device 8, or to ensure that the ionization device 8 no longer generates an electric field when it falls below a predetermined maximum value.
- the ionization device 20 may also be optionally coupled to the power supply 14, for example in an alternative embodiment.
- a power consumption in the cleaning by means of a plasma or by means of an ionizing electric field is reduced. Furthermore, a reduction of the ozone emission can be achieved, as well as a reduction of the wear of the electrodes.
- a characteristic of the contaminating particles in the medium is determined.
- an operation mode of the ionization device is varied.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electrostatic Separation (AREA)
Description
Ausführungsbeispiele der vorliegenden Erfindung befassen sich mit einer Reinigungsvorrichtung zum Entfernen von verunreinigenden Partikeln aus einem Medium, insbesondere unter Verwendung eines elektrischen Feldes.Embodiments of the present invention are concerned with a cleaning device for removing contaminating particles from a medium, in particular using an electric field.
Zur Reinigung von Medien oder Gasen, wie beispielsweise Luft, existieren eine große Anzahl von Verfahren. Abseits von herkömmlichen Methoden, wie beispielsweise der Verwendung eines Filters, können Medien, wie beispielsweise strömende Gase oder dergleichen, auch mittels Plasmen, also mittels vollständig oder großteils ionisierten Gasen oder, allgemein gesprochen, durch Ionisation gereinigt werden. Zusätzlich zu der Möglichkeit, Medien bzw. strömende Gase mittels Hochstromplasmen zu reinigen, also dadurch, dass das zu reinigende Medium einer großen Menge vollständig ionisierten Gases ausgesetzt wird, besteht auch die Möglichkeit, so genannte Hochspannungs- Gleichstrom- Plasmen zu verwenden bzw. zu erzeugen, bei denen eine geringere elektrische Leistung zur Erzeugung des Plasmas erforderlich sein kann. Diese können unter Anderem in Abscheidern, Dichtungen, Filtern, Reinigern, Schabern, Signalübertragern oder weiteren maschinenbaulichen Erzeugnissen eingesetzt werden.For cleaning media or gases, such as air, there are a large number of methods. Apart from conventional methods, such as the use of a filter, media such as flowing gases or the like, by means of plasmas, ie by means of fully or largely ionized gases or, generally speaking, be purified by ionization. In addition to the ability to purify media or flowing gases by means of high-current plasmas, so that the medium to be cleaned is exposed to a large amount of fully ionized gas, it is also possible to use or produce so-called high-voltage DC plasmas in which a lower electrical power may be required to produce the plasma. These can be used, among other things, in separators, seals, filters, cleaners, scrapers, signal transducers or other mechanical engineering products.
Ein Hochspannungs- Gleichstrom- Plasma kann zur Reinigung dann verwendet werden, wenn ein elektrostatisches oder elektrodynamisches Feld zwischen 2 Elektroden erzeugt wird, zwischen denen das zu reinigende Gas bzw. Medium strömt. Bei ausreichend hoher Feldstärke können Verunreinigungen in dem Medium bzw. die Verunreinigungen bildenden Partikel oder Moleküle in dem Feld ionisiert werden. Durch diese so genannte Feldionisation verbleibt ein positiv geladener Rumpf des Partikels bzw. der Verunreinigung, der unter dem Einfluss des die Ionisation hervorrufenden Feldes gerichtet und entlang der Feldlinien aus dem Bereich der Ionisation entfernt wird, bzw. entlang der Feldlinien vom Ort der Ionisation zu einer Kathode driftet. Ist die Spannung zwischen den Elektroden und damit die resultierende Feldstärke passend gewählt, sodass näherungsweise alle Partikel bzw. alle verunreinigenden Partikel ionisiert werden, kann von einem Plasma gesprochen werden, in dem sämtliche verunreinigenden Partikel ionisiert sind.A high voltage DC plasma may be used for cleaning when an electrostatic or electrodynamic field is generated between 2 electrodes between which the gas or medium to be cleaned flows. At a sufficiently high field strength, contaminants in the medium or impurity-forming particles or molecules in the field may be ionized. This so-called field ionization leaves a positively charged body of the particle or contaminant, which is directed under the influence of the ionization-inducing field and removed along the field lines from the region of ionization, or along the field lines from the place of ionization to one Cathode drifts. If the voltage between the electrodes and thus the resulting field strength is suitably chosen, so that approximately all particles or all contaminating particles are ionized, one can speak of a plasma in which all contaminating particles are ionized.
Die Reinigung mit einem Plasma erfordert es allgemein, hohe Felder bzw. die zur Erzeugung eines hohen Feldes erforderlichen hohen Spannungen permanent aufrecht zu erhalten, was äußerst Energieaufwändig ist. Dokument
Dokument
Es besteht somit die Notwendigkeit, eine Reinigungsvorrichtung zur Verfügung zu stellen, die effizienter betrieben werden kann.There is thus a need to provide a cleaning device that can be operated more efficiently.
Einige Ausführungsbeispiele der Erfindung verwenden neben einer Ionisierungseinrichtung, die mittels zweier sich auf unterschiedlichen Seiten eines Strömungskanals gegenüberliegenden Elektroden ein elektrisches Feld erzeugen kann, zusätzlich einen Verunreinigungssensor, der den Grad der Verunreinigung des zu reinigenden Mediums feststellt. Mit dem Verunreinigungssensor ist ferner eine Kontrolleinrichtung gekoppelt, die abhängig von einer ermittelten Charakteristik der verunreinigenden Partikel, beispielsweise der Konzentration oder der Partikelgröße der Verunreinigungen, einen Betriebsmodus der Ionisierungseinrichtung verändern kann. Mit anderen Worten kann bei einigen Ausführungsbeispielen der Erfindung die Feldstärke der Ionisierungseinrichtung dynamisch an die Gegebenheiten bzw. an zeitlich schwankende Anforderungen angepasst werden.Some embodiments of the invention use, in addition to an ionization device, which can generate an electric field by means of two opposite electrodes on different sides of a flow channel, additionally an impurity sensor, which detects the degree of contamination of the medium to be cleaned. A control device is also coupled to the contamination sensor, which can change an operating mode of the ionization device depending on a determined characteristic of the contaminating particles, for example the concentration or the particle size of the impurities. In other words, in some embodiments of the invention, the field strength of the ionization device can be adapted dynamically to the circumstances or to time-varying requirements.
Wird beispielsweise von dem Verunreinigungssensor detektiert, dass aktuell keine verunreinigenden Partikel in einem Strom von Luft bzw. einem anderen Medium enthalten sind, kann die Feldstärke reduziert werden, bzw. es kann eine Spannung an den Elektroden der Ionisierungseinrichtung reduziert werden. Bei einigen Ausführungsbeispielen kann diese Reduzierung optional bis zum Abschalten einer Spannungsversorgung vorgenommen werden, d.h. die Kontrolleinrichtung kann in Form einer binären Steuerung arbeiten und die Spannungsversorgung wahlweise ein- oder ausschalten.If, for example, it is detected by the contamination sensor that currently no contaminating particles are contained in a stream of air or another medium, the field strength can be reduced or a voltage at the electrodes of the ionization device can be reduced. In some embodiments, this reduction may optionally be done until a power supply is turned off, i. the control device can operate in the form of a binary control and optionally switch the power supply on or off.
Dieses Vorgehen kann eine erhebliche Menge Energie zur Aufrechterhaltung des elektrischen Feldes sparen, wobei gleichzeitig eine kontinuierlich hohe Reinigungswirkung sichergestellt ist.This procedure can save a considerable amount of energy to maintain the electric field, while ensuring a continuously high cleaning effect.
Spannungen, mit denen die Elektroden einiger Ausführungsbeispiele von Ionisierungseinrichtungen beaufschlagt werden, um eine Reinigungswirkung zu erzielen, können zwischen 1kV und 100kV, bevorzugt zwischen 3kV und 20kV, liegen.Voltages with which the electrodes of some embodiments are subjected to ionization devices in order to achieve a cleaning effect can be between 1 kV and 100 kV, preferably between 3 kV and 20 kV.
Einige Ausführungsbeispiele der Erfindung weisen eine Kaskade von Ionisierungseinrichtungen auf, die in der Strömungsrichtung des zu reinigenden Mediums hintereinander angeordnet sind. So kann beispielsweise ein weiteres Ausführungsbeispiel eine zweite Ionisierungseinrichtung aufweisen, welche wiederum über zwei einander gegenüberliegende Elektroden verfügt. Bei einigen Ausführungsbeispielen der Erfindung wird lediglich ein nachgelagertes Element der Kaskade, also beispielsweise die zweite Ionisierungseinrichtung, mittels der Kontrolleinrichtung beeinflusst bzw. an- und ausgeschaltet. So kann der Energieverbrauch prinzipiell auf bis zur Hälfte reduziert werden, wobei eine zuverlässige Reinigungswirkung zu jedem Zeitpunkt gegeben ist.Some embodiments of the invention comprise a cascade of ionization devices arranged one behind the other in the flow direction of the medium to be cleaned. For example, another embodiment may include a second ionization device which in turn has two opposing electrodes. In some embodiments of the invention, only one downstream element of the cascade, ie, for example, the second ionization device, is influenced or switched on and off by means of the control device. Thus, the energy consumption can be reduced in principle to half, with a reliable cleaning effect is given at any time.
Bei weiteren Ausführungsbeispielen ist sowohl vor als auch nach der ersten Ionisierungseinrichtung einer Kaskade bzw. einer einzelnen Ionisierungseinrichtung ein Verunreinigungssensor angeordnet. Somit kann sowohl die Reinigungsleistung der Ionisierungseinrichtung variiert werden, bis eine vollständige Reinigung erzielt ist, als auch unschädlich die maximale Energieeinsparung erzielt werden, wenn in dem Medium für einen gewissen Zeitraum a priori keine verunreinigenden Partikel enthalten sind.In further exemplary embodiments, an impurity sensor is arranged both before and after the first ionization device of a cascade or a single ionization device. Thus, both the cleaning performance of Ionization be varied until a complete cleaning is achieved, as well as harmless the maximum energy saving can be achieved if in the medium for a certain period a priori no contaminating particles are included.
Bei einigen Ausführungsbeispielen wird die Konzentration der verunreinigenden Partikel zwischen der ersten und der zweiten Ionisierungseinrichtung bestimmt, um zuverlässig entscheiden zu können, ob die stromabwärts gelegene zweite Ionisierungseinrichtung abgeschaltet oder mit reduzierter Leistung betrieben werden kann.In some embodiments, the concentration of contaminant particles between the first and second ionizers is determined to reliably determine whether the downstream second ionizer can be shut down or operated at reduced power.
Bei einigen Ausführungsbeispielen wird nur die zweite Ionisierungseinrichtung, die stromabwärts von der ersten Ionisierungseinrichtung gelegen ist, mittels der Kontrolleinrichtung beeinflusst, so dass beispielsweise bei Unterschreiten eines vorbestimmten Maximalwerts von tolerierbaren Verunreinigungen die zweite Ionisierungseinrichtung abgeschaltet wird.In some embodiments, only the second ionization device located downstream of the first ionization device is influenced by the controller, such that, for example, if a predetermined maximum value of tolerable contaminants is not reached, the second ionization device is turned off.
Bei einigen Ausführungsbeispielen der vorliegenden Erfindung werden als Sensoren zu der Detektion von Verunreinigungen in dem zu reinigenden Medium IR-Sensoren, Laserpartikelsensoren (Luftpartikelzähler) oder Ultraschallsensoren verwendet. Selbstverständlich können bei weiteren Ausführungsbeispielen auch nach anderen Prinzipien funktionierende Sensoren verwendet werden. Als Verunreinigungssensor soll insoweit jeder Sensor oder jede Vorrichtung verstanden werden, mittels derer eine Verunreinigung in einem Medium bzw. ein von einem Medium abweichender Stoff innerhalb des Mediums erkannt werden kann.In some embodiments of the present invention, sensors used to detect contaminants in the medium to be cleaned are IR sensors, laser particle sensors (air particle counter) or ultrasonic sensors. Of course, in other embodiments, functioning according to other principles sensors can be used. In this respect, any sensor or device by means of which an impurity in a medium or a substance differing from a medium within the medium can be recognized as an impurity sensor.
Bevorzugte Ausführungsbeispiele der vorliegenden Erfindung werden nachfolgen, bezugnehmend auf die beigefügten Figuren, näher erläutert. Es zeigen:
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ein Ausführungsbeispiel einer Reinigungsvorrichtung;Figur 1 -
Figur 2 ein weiteres Ausführungsbeispiel einer Reinigungsvorrichtung mit kaskadierten Ionisierungseinrichtungen; und -
Figur 3 ein Ausführungsbeispiel eines Verfahrens zum Betreiben einer Reinigungsvorrichtung.
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FIG. 1 an embodiment of a cleaning device; -
FIG. 2 a further embodiment of a cleaning device with cascaded ionization devices; and -
FIG. 3 an embodiment of a method for operating a cleaning device.
Die Reinigungsvorrichtung umfasst zumindest eine Ionisierungseinrichtung 8, welche ein Paar von Elektroden aufweist, die sich auf unterschiedlichen Seiten des Strömungskanals gegenüberliegen. In
Die Reinigungsvorrichtung enthält ferner zumindest einen Verunreinigungssensor 16, der ausgebildet ist, um eine Charakteristik, beispielsweise eine Konzentration oder eine Größe der verunreinigenden Partikel in dem Medium zu bestimmen. Wenngleich
Die Reinigungsvorrichtung weist ferner eine Kontrolleinrichtung 20 auf, die sowohl mit der Ionisierungseinrichtung 8 als auch mit dem Verunreinigungssensor 16 gekoppelt ist. Die Kontrolleinrichtung 20 ist ausgebildet, um einen Betriebsmodus der Ionisierungseinrichtung 8 abhängig von der von dem Verunreinigungssensor 16 ermittelten Charakteristik der verunreinigenden Partikel 4 zu variieren. Dies kann beispielsweise durch Variation der Höhe der an den Elektroden 10 und 12 anliegenden Spannung erfolgen. Eine einfache weitere Möglichkeit der Regelung ist, bei unterschreiten eines vorbestimmten Maximalwertes die Konzentration der verunreinigenden Partikel 4 die Ionisierungseinrichtung 8 abzuschalten bzw. dafür zu sorgen, dass die Ionisierungseinrichtung 8 kein elektrisches Feld mehr erzeugt. Zu diesem Zweck kann die die Ionisierungseinrichtung 20 beispielsweise in einem alternativen Ausführungsbeispiel auch optional mit der Spannungsversorgung 14 gekoppelt sein.The cleaning device furthermore has a
Bei weiteren Ausführungsbeispielen, bei denen eine Mehrzahl von kaskadierten Ionisierungseinrichtungen verwendet wird, kann die maximale Reinigungsleistung einer Reinigungsvorrichtung erhöht werden, wenn die verunreinigenden Partikel in der Flussrichtung mehrere hintereinander angeordnete Ionisierungseinrichtungen passieren können.In further embodiments in which a plurality of cascaded ionization devices is used, the maximum cleaning performance of a cleaning device can be increased if the contaminating particles in the flow direction can pass through a plurality of ionization devices arranged one behind the other.
Die Kontrolleinrichtung 20 ist sowohl mit den Verunreinigungssensoren 26a bis 26d als auch mit den Ionisierungseinrichtungen 28a bis 28c gekoppelt, um abhängig von der von den einzelnen Verunreinigungssensoren detektierten Konzentrationen bzw. Charakteristika der verunreinigenden Partikel die Betriebsbedingungen bzw. die Ansteuerung der Ionisierungseinrichtungen 28a bis 28c zu variieren. Dabei können einzelne der Ionisierungseinrichtungen 28a bis 28c entweder zu- oder abgeschalteten werden bzw. es kann die Versorgungsspannung einzelner Ionisierungseinrichtungen selektiv oder kollektiv variiert, d.h. erhöht oder erniedrigt werden.The
Beispielsweise kann, wenn mittels des Verunreinigungssensor 26c kein verunreinigtes Partikel detektiert werden kann bzw. wenn die Konzentration der verunreinigenden Partikel unterhalb eines vorbestimmten Maximalwertes bleibt, die Ionisierungseinrichtung 28c abgeschalteten werden. Selbstverständlich sind auch beliebige andere Steuer- bzw. Regelungsalgorithmen möglich. Durch den Einsatz der Verunreinigungssensoren 26a bis 26d bzw. einer Sensorik vor und/oder in dem Wirkbereich des Plasmas bzw. des elektrischen Feldes kann durch die Detektion beispielsweise der Größe und/oder der Anzahl des zu beeinflussenden Stoffes bzw. der verunreinigenden Partikel der dieses Plasma erzeugende Hochspannungs-Gleichstrom an- oder abgeschaltet bzw. in seiner Höhe variiert werden. Durch eine Kaskadenregelung, wie sie exemplarisch in
Durch Ausführungsbeispiele der Erfindung wird ein Stromverbrauch bei der Reinigung mittels eines Plasmas bzw. mittels eines eine Ionisierung verursachenden elektrischen Feldes verringert. Ferner kann eine Verringerung der Ozon-Emission erreicht werden, sowie eine Verringerung des Verschleißes der Elektroden.By embodiments of the invention, a power consumption in the cleaning by means of a plasma or by means of an ionizing electric field is reduced. Furthermore, a reduction of the ozone emission can be achieved, as well as a reduction of the wear of the electrodes.
In einem Prüfschritt 40 wird eine Charakteristik der verunreinigenden Partikel in dem Medium bestimmt. Abhängig von der bestimmten Charakteristik wird in einem Steuer-/Regel Schritt 42 ein Betriebsmodus der Ionisierungseinrichtung variiert.In a
Obwohl bei den vorhergehenden Betrachtungen der Reinigungsvorrichtungen im Wesentlichen auf die Reinigung eines Mediums abgestellt wurde, versteht es sich von selbst, dass eine solche Reinigungsvorrichtung auch mit anderen Zielsetzungen verwendet werden kann.Although in the foregoing considerations of the cleaning devices has been directed essentially to the cleaning of a medium, it goes without saying that such a cleaning device can also be used with other objectives.
Beispielsweise können Ausführungsbeispiele einer Reinigungsvorrichtung als Dichtung verwendet werden, indem unerwünschte Teile bzw. Partikel aus einem ein Lager oder ein zu schützendes Bauteil umgebendem Medium, wie beispielsweise Luft oder Gas, entfernt werden, so dass diese nicht in das zu schützende Bauteil gelangen können. Beispielsweise können also weitere Ausführungsbeispiele der vorliegenden Reinigungsvorrichtung in Lagern, insbesondere Gleitlagern und Wälzlagern verwendet werden, um das Lager vor Verunreinigung und vorzeitigem Verschleiß zu schützen.For example, embodiments of a cleaning device can be used as a seal by unwanted parts or particles from a bearing or a component to be protected surrounding medium, such as air or gas, are removed so that they can not get into the component to be protected. For example, therefore, further embodiments of the present cleaning device in bearings, in particular plain bearings and bearings can be used to protect the bearing from contamination and premature wear.
- 4 verunreinigende Partikel4 contaminating particles
- 6 Flussrichtung6 flow direction
- 8 Ionisierungseinrichtung8 ionization device
- 10Anode10Anode
- 12 Kathode12 cathode
- 14 Spannungsversorgung14 power supply
- 16 Verunreinigungssensor16 pollution sensor
- 18 weiterer Verunreinigungssensor18 further pollution sensor
- 20 Kontrolleinrichtung20 control device
- 26a - 26d Verunreinigungssensoren26a - 26d pollution sensors
- 28a - 28c Ionisierungseinrichtungen28a-28c ionization devices
- 30a - 30c Anoden30a - 30c anodes
- 32a - 32c Kathoden32a - 32c cathodes
- 40 Prüfschritt40 test step
- 42 Steuer-/Regelschritt42 control step
Claims (10)
- Cleaning device for removing contaminating particles (4) from a medium flowing along a flow channel in a flow direction (6), comprising:an ionizing means (8), which is designed to generate an electric field in the flow channel by means of a pair of electrodes (10, 12) lying opposite one another on different sides of the flow channel;at least one contamination sensor (16), which is designed to determine a characteristic of the contaminating particles in the medium;characterized in thata control means (20) is provided, which is coupled to the contamination sensor (16) and the ionizing means (8) and is designed to vary an operating mode of the ionizing means (8) depending on the characteristic of the contaminating particles (4) that is determined by the contamination sensor (16).
- Cleaning device according to Claim 1, which also has a second ionizing means (28b), which is coupled to the control means (20) and is designed to generate an electric field in the flow channel by means of a second pair of electrodes lying opposite one another on different sides of the flow channel, the second ionizing means (28b) being arranged downstream of the ionizing means (28a) in the flow direction (6).
- Cleaning device according to Claim 1 or 2, in which the contamination sensor (26a) is designed to determine the characteristic of the contaminating particles in the medium upstream of the first ionizing means (28a) or the second ionizing means (28b) in the flow direction (6) or downstream of the second ionizing means (28b) in the flow direction (6).
- Cleaning device according to one of Claims 1 to 3, in which the control means (20) is designed to reduce an operating voltage between an anode and a cathode of the ionizing means (8; 28a) and/or the second ionizing means (28b) when the value for the concentration of the contaminating particles (4) goes below a predetermined maximum.
- Cleaning device according to Claim 4, in which the control means (20) is designed to switch off a voltage supply (14) for the first and/or the second ionizing means (8; 28a, 28b) when the value goes below a predetermined maximum.
- Cleaning device according to one of the preceding claims, in which the contamination sensor comprises an IR sensor, a laser particle sensor, an airborne particle counter or an ultrasound sensor.
- Cleaning device according to one of the preceding claims, further comprising:a first voltage source (14), which is coupled to the first ionizing means (8) in such a way as to generate an electric field between the anode and the cathode.
- Cleaning device according to one of Claims 2 to 7, in which the cathodes (32a, 32b) of the first and second ionizing means (28a, 28b) are short-circuited in order to form a common cathode.
- Method for operating a cleaning device for removing contaminating particles from a medium flowing along a flow channel in a flow direction (6), wherein the cleaning device is designed to generate an electric field in the flow channel by means of a pair of electrodes (10, 12) lying opposite one another on different sides of the flow channel, characterized by the following steps:determining a characteristic of the contaminating particles in the gas; andvarying an operating mode of the ionizing means, depending on the characteristic of the contaminating particles that is determined.
- Use of a cleaning device according to one of Claims 1 to 8 for protecting a bearing, in particular a rolling bearing, from contaminating particles.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201110007470 DE102011007470A1 (en) | 2011-04-15 | 2011-04-15 | cleaning device |
PCT/EP2012/056559 WO2012140069A1 (en) | 2011-04-15 | 2012-04-11 | Cleaning device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2696999A1 EP2696999A1 (en) | 2014-02-19 |
EP2696999B1 true EP2696999B1 (en) | 2016-02-24 |
Family
ID=45992222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12715656.0A Not-in-force EP2696999B1 (en) | 2011-04-15 | 2012-04-11 | Cleaning device |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2696999B1 (en) |
DE (1) | DE102011007470A1 (en) |
WO (1) | WO2012140069A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017100574A1 (en) | 2017-01-13 | 2018-07-19 | Schaeffler Technologies AG & Co. KG | Module for preventing current passage damage in a rolling bearing and rolling bearing assembly |
WO2024068787A1 (en) * | 2022-09-28 | 2024-04-04 | Woco Gmbh & Co. Kg | Room air purifier |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016147127A1 (en) * | 2015-03-19 | 2016-09-22 | Woco Industrietechnik Gmbh | Device and method for separating off contaminants |
EP3722003A1 (en) * | 2019-04-09 | 2020-10-14 | Technische Universität Dortmund | Electrostatic precipitator |
AT525317A1 (en) * | 2021-08-02 | 2023-02-15 | Villinger Markus | Purification device for purifying a gas |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1276001B (en) * | 1965-04-10 | 1968-08-29 | Metallgesellschaft Ag | Procedure for voltage regulation of electrostatic dust collectors |
DD239350A1 (en) * | 1985-07-17 | 1986-09-24 | Entstaubungstech Edgar Andre | CIRCUIT ARRANGEMENT FOR CONTROLLING THE HIGH VOLTAGE SYSTEMS FOR ELECTRICAL SEPARATORS |
DE29615980U1 (en) * | 1996-09-13 | 1997-02-13 | Maxs Ag, Sachseln | Device for the electrostatic separation of impurities |
DE10045369A1 (en) * | 2000-09-14 | 2002-03-28 | Salzgitter Ag | Process gas cleaning method has process gas passing between spray electrode and separation electrodes acted on by magnetic transducer field |
US6785114B2 (en) * | 2001-03-29 | 2004-08-31 | Illinois Tool Works Inc. | Foraminous filter for use in air ionizer |
DE102007048557B3 (en) * | 2007-10-09 | 2009-06-04 | Ab Skf | Arrangement for sealing |
-
2011
- 2011-04-15 DE DE201110007470 patent/DE102011007470A1/en not_active Ceased
-
2012
- 2012-04-11 EP EP12715656.0A patent/EP2696999B1/en not_active Not-in-force
- 2012-04-11 WO PCT/EP2012/056559 patent/WO2012140069A1/en active Application Filing
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017100574A1 (en) | 2017-01-13 | 2018-07-19 | Schaeffler Technologies AG & Co. KG | Module for preventing current passage damage in a rolling bearing and rolling bearing assembly |
WO2024068787A1 (en) * | 2022-09-28 | 2024-04-04 | Woco Gmbh & Co. Kg | Room air purifier |
Also Published As
Publication number | Publication date |
---|---|
DE102011007470A1 (en) | 2012-10-18 |
WO2012140069A1 (en) | 2012-10-18 |
EP2696999A1 (en) | 2014-02-19 |
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