EP2696999A1 - Dispositif de nettoyage - Google Patents

Dispositif de nettoyage

Info

Publication number
EP2696999A1
EP2696999A1 EP12715656.0A EP12715656A EP2696999A1 EP 2696999 A1 EP2696999 A1 EP 2696999A1 EP 12715656 A EP12715656 A EP 12715656A EP 2696999 A1 EP2696999 A1 EP 2696999A1
Authority
EP
European Patent Office
Prior art keywords
cleaning device
ionization
contaminating particles
flow channel
sensor
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
EP12715656.0A
Other languages
German (de)
English (en)
Other versions
EP2696999B1 (fr
Inventor
Jochen Lorenscheit
Ingo Schulz
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP2696999A1 publication Critical patent/EP2696999A1/fr
Application granted granted Critical
Publication of EP2696999B1 publication Critical patent/EP2696999B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B6/00—Cleaning by electrostatic means
    • 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

  • Embodiments of the present invention are concerned with a cleaning device for removing contaminating particles from a medium, in particular using an electric field.
  • 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 site 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.
  • the cleaning with a plasma generally requires to maintain high fields or the high voltages required to generate a high field permanently, which is extremely energy-consuming.
  • Some embodiments of the invention use, in addition to an ionization device, which can generate an electric field by means of two electrodes located opposite on different sides of a flow channel, in addition a Veranalismssensor that 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 Ionisierangs leverage be dynamically adapted to the circumstances or to time-varying requirements.
  • 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, ie, the controller may operate in the form of a binary controller and selectively turn the power on or off.
  • This procedure can save a considerable amount of energy to maintain the electric field, while ensuring a continuously high cleaning effect.
  • Voltages with which the electrodes of some exemplary embodiments are subjected to ionization devices in order to achieve a cleaning effect can lie between 1 kV and 100 kV, preferably between 3 kV and 20 kV.
  • 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.
  • another embodiment may include a second ionization device, which in turn has two opposing electrodes.
  • only one downstream element of the cascade, that is to say, for example, the second ionization device, is influenced or switched on and off by means of the control device.
  • the energy consumption can be reduced in principle to half, with a reliable cleaning effect is given at any time.
  • a Veran invasionssensor is arranged both before and after the first Ionisierangs adopted a cascade or a single Ionisierangs adopted.
  • 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.
  • the concentration of contaminant particles between the first and second ionizer devices is determined to reliably determine whether the downstream second ionizer device can be shut down or operated at reduced power.
  • 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 ionizer device is turned off.
  • 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
  • FIG. 2 shows a further embodiment of a cleaning device with cascaded ionization directions
  • FIG. 3 shows an exemplary embodiment of a method for operating a cleaning device.
  • FIG. 1 shows an exemplary 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. Rather, 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.
  • 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 passing through the cleaning device.
  • the cleaning device comprises at least one ionization device 8, which has a pair of electrodes facing each other on different sides of the flow channel.
  • an ionization device 8 which has a pair of electrodes facing each other on different sides of the flow channel.
  • FIG. 1 as one of the possible embodiments of the pair of electrodes, an anode 10 with a plurality of tips and a flat 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 can be opposite to that in FIG. 1, where an optional high voltage supply 14 is coupled to the electrodes 10 and 12 such that the anode 10 is connected to the electrodes pointed electrodes is formed.
  • the polarity may be the other way around than shown in FIG.
  • only a single electrode can be used for the anode 10 or the number of electrodes or the tips of an electrode can be
  • the cleaning apparatus further includes at least one contaminant sensor 16 configured to determine a characteristic, such as concentration or size of the contaminant particles in the medium.
  • Figure 1 shows an optional second Verancurissensor 18, which is arranged in the flow direction 6 after the Ionisierangs Huawei 8, can be dispensed with alternative AusSteangsbeiard one of the Veranalismssensoren 16 or 18 shown in Figure 1.
  • the contaminant sensor 16 or 18 may determine the concentration and / or the size or other property of the contaminating particles in the medium.
  • the annealing cleaning sensor 16 may be an optical sensor based on the intensity of light emitted from the opposite side of the flow channel or intensity of a light emitted from the annealing sensor 16 itself and reflected from the opposite side to the concentration can close the contaminating particles in the medium.
  • Other possible sensors that can be used as contamination sensor are IR sensors, laser particle sensors (air particle counter) or ultrasonic sensors.
  • the cleaning device furthermore has a control device 20, which is connected both to the ionization device 8 and to the contamination purification sensor 16. is coupled.
  • 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 contaminant 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 control is to switch off the concentration of the contaminating particles 4, the ionization device 8 when it falls below a predetermined maximum value or to ensure that the Ionisierangs worn 8 generates no electric field more.
  • the ionization device 20 may also be optionally coupled to the voltage supply 14, for example in an alternative embodiment.
  • the maximum cleaning performance of a cleaning device can be increased if the contaminating particles in the direction of flow can pass through a plurality of ionization devices arranged one behind the other.
  • FIG. 2 shows an exemplary embodiment or a possible arrangement of such a cleaning device with cascaded ionization devices.
  • FIG. 2 shows, as a possible arrangement, three ionizing devices 28a-28c arranged one behind the other in the flow direction 6, as well as contaminating sensors 26a-26d adjacent to the ionizing devices 28a-28c.
  • FIG. 2 shows an optional possibility of designing the cathodes 32a-32c opposite the anodes 30a-30c, which are short-circuited with one another and thus form a common cathode surface.
  • discrete cathodes or alternative embodiments of the cathodes 32a-32c as well as a reverse polarity are also possible here. Only for the sake of representability is omitted in Figure 2 on the representation of an optional power supply.
  • the control device 20 is coupled to both the purge sensors 26a to 26d and to the ionization devices 28a to 28c to be dependent to vary the operating conditions or the control of the ionization devices 28a to 28c from the concentrations or characteristics of the contaminating particles detected by the individual contamination sensors.
  • individual ones of the ionization devices 28a to 28c can either be switched on or off or the supply voltage of individual ionization devices can be selectively or collectively varied, ie increased or decreased.
  • the ionizer 28c may be turned off.
  • any other control algorithms are possible.
  • the contamination sensors 26a to 26d or a sensor before and / or in the effective range of the plasma or the electric field can by detecting, for example, the size and / or the number of the substance to be influenced or the contaminating particles of this plasma generating high voltage DC switched on or off or be varied in height.
  • a cascade control as shown by way of example in Figure 2, also a demand-dependent control is subdivided into individual plasma zones or zones of a non-disappearance electric field feasible.
  • 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.
  • FIG. 3 shows schematically an embodiment of a method for operating a cleaning device for removing contaminating particles from a medium flowing in a flow direction along a flow channel, wherein the cleaning device is designed to use different Chen sides of the flow channel opposite electrodes to generate an electric field in the flow channel.
  • a characteristic of the contaminating particles in the medium is determined.
  • an operation mode of the ionization device is varied.
  • 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.
  • a cleaning device in bearings, in particular plain bearings and bearings can be used to protect the bearing from contamination and premature wear.

Landscapes

  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Electrostatic Separation (AREA)

Abstract

Dispositif de nettoyage destiné à éliminer les particules polluantes (4) d'un fluide s'écoulant dans un sens d'écoulement (6) le long d'un canal d'écoulement, comportant un dispositif d'ionisation (8) conçu pour créer un champ électrique dans le canal d'écoulement au moyen d'une paire d'électrodes (10, 12) disposées vis à vis sur différents côtés du canal d'écoulement, et au moins un détecteur de contamination (16) permettant de déterminer une caractéristique de la particule polluante dans le fluide. Le détecteur de contamination (16) et le dispositif d'ionisation (8) sont couplés à un dispositif de contrôle (20) permettant de varier le mode de fonctionnement du dispositif d'ionisation (8) suivant la caractéristique de la particule polluante (4), déterminée par le détecteur de contamination (16).
EP12715656.0A 2011-04-15 2012-04-11 Dispositif de nettoyage Not-in-force EP2696999B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110007470 DE102011007470A1 (de) 2011-04-15 2011-04-15 Reinigungsvorrichtung
PCT/EP2012/056559 WO2012140069A1 (fr) 2011-04-15 2012-04-11 Dispositif de nettoyage

Publications (2)

Publication Number Publication Date
EP2696999A1 true EP2696999A1 (fr) 2014-02-19
EP2696999B1 EP2696999B1 (fr) 2016-02-24

Family

ID=45992222

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12715656.0A Not-in-force EP2696999B1 (fr) 2011-04-15 2012-04-11 Dispositif de nettoyage

Country Status (3)

Country Link
EP (1) EP2696999B1 (fr)
DE (1) DE102011007470A1 (fr)
WO (1) WO2012140069A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3271077B1 (fr) 2015-03-19 2021-02-17 WOCO Industrietechnik GmbH Dispositif et procédé d'élimination d'impuretés
DE102017100574A1 (de) 2017-01-13 2018-07-19 Schaeffler Technologies AG & Co. KG Modul zur Verhinderung von Stromdurchgangsschäden bei einem Wälzlager sowie Wälzlageranordnung
AT525317A1 (de) * 2021-08-02 2023-02-15 Villinger Markus Reinigungsvorrichtung zum Reinigen eines Gases
DE102022125024A1 (de) * 2022-09-28 2024-03-28 Woco Gmbh & Co. Kg Raumluftreiniger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1276001B (de) * 1965-04-10 1968-08-29 Metallgesellschaft Ag Verfahren zur Spannungsreglung von elektrostatischen Staubabscheidern
DD239350A1 (de) * 1985-07-17 1986-09-24 Entstaubungstech Edgar Andre Schaltungsanordnung zur steuerung der hochspannungsanlagen fuer elektroabscheider
DE29615980U1 (de) * 1996-09-13 1997-02-13 Maxs Ag, Sachseln Vorrichtung zum elektrostatischen Abscheiden von Verunreinigungen
DE10045369A1 (de) * 2000-09-14 2002-03-28 Salzgitter Ag Verfahren und Vorrichtung zum Reinigen von Prozessgasen
US6785114B2 (en) * 2001-03-29 2004-08-31 Illinois Tool Works Inc. Foraminous filter for use in air ionizer
DE102007048557B3 (de) * 2007-10-09 2009-06-04 Ab Skf Anordnung zum Abdichten

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2012140069A1 *

Also Published As

Publication number Publication date
EP2696999B1 (fr) 2016-02-24
WO2012140069A1 (fr) 2012-10-18
DE102011007470A1 (de) 2012-10-18

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