EP2696999B1 - Dispositif de nettoyage - Google Patents

Dispositif de nettoyage Download PDF

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Publication number
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
Authority
EP
European Patent Office
Prior art keywords
cleaning device
contaminating particles
ionizing means
flow channel
designed
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.)
Not-in-force
Application number
EP12715656.0A
Other languages
German (de)
English (en)
Other versions
EP2696999A1 (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
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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

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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 has multiple serrated ends or parts
    • 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 parameters, efficiency, etc.

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.

Landscapes

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

Claims (10)

  1. Ensemble de nettoyage destiné à enlever des particules (4) encrassant un fluide s'écoulant dans une direction d'écoulement (6) dans un canal d'écoulement, l'ensemble présentant :
    un dispositif d'ionisation (8) configuré pour former un champ électrique dans le canal d'écoulement au moyen d'une paire (10, 12) d'électrodes situées face à face sur des côtés différents du canal d'écoulement,
    au moins un capteur d'encrassement (16) configuré pour déterminer une caractéristique des particules encrassant le fluide,
    caractérisé en ce que
    un dispositif de contrôle (20) raccordé au capteur d'encrassement (16) et au dispositif d'ionisation (8) et configuré pour modifier un mode de fonctionnement du dispositif d'ionisation (8) en fonction de la caractéristique des particules d'encrassement (4) déterminées par le capteur d'encrassement (16).
  2. Ensemble de nettoyage selon la revendication 1, présentant en outre un deuxième dispositif d'ionisation (28b) raccordé au dispositif de contrôle (20) et configuré pour former dans le canal d'écoulement un champ électrique au moyen d'une deuxième paire d'électrodes situées face à face sur des côtés différents du canal d'écoulement, le deuxième dispositif d'ionisation (28b) étant disposé en aval du dispositif d'ionisation (28a) dans la direction d'écoulement (6).
  3. Ensemble de nettoyage selon les revendications 1 ou 2, dans lequel le capteur d'encrassement (26a) est configuré pour déterminer la caractéristique des particules d'encrassement dans le fluide en amont du premier dispositif d'ionisation (28a) ou du deuxième dispositif d'ionisation (28b) dans la direction d'écoulement (6) ou en aval du deuxième dispositif d'ionisation (28b) dans la direction d'écoulement (6).
  4. Ensemble de nettoyage selon l'une des revendications 1 à 3, dans lequel le dispositif de contrôle (20) est configuré pour diminuer la tension de service appliquée entre une anode et une cathode du dispositif d'ionisation (8; 28a) et/ou du deuxième dispositif d'ionisation (28b) lorsqu'une valeur maximale prédéterminée de la concentration des particules d'encrassement (4) n'est pas atteinte.
  5. Ensemble de nettoyage selon la revendication 4, dans lequel le dispositif de contrôle (20) est configuré pour débrancher l'alimentation (14) en tension du premier et/ou du deuxième dispositif d'ionisation (8; 28a, 28b) au cas où la valeur maximale prédéterminée n'est pas atteinte.
  6. Ensemble de nettoyage selon l'une des revendications précédentes, dans lequel le capteur d'encrassement comprend un capteur IR, un capteur de particules à laser, un compteur de particules dans l'air ou un capteur à ultrasons.
  7. Ensemble de nettoyage selon l'une des revendications précédentes, comprenant en outre une première source de tension (14) raccordée au premier dispositif d'ionisation (8) de manière à former un champ électrique entre l'anode et la cathode.
  8. Ensemble de nettoyage selon l'une des revendications 2 à 7, dans lequel les cathodes (32a, 32b) du premier et du deuxième dispositif d'ionisation (28a, 28b) sont mises en court-circuit pour former une cathode commune.
  9. Procédé de conduite d'un dispositif de nettoyage destiné à retirer des particules qui encrassent un fluide qui s'écoule le long d'un canal d'écoulement dans une direction d'écoulement (6), l'ensemble de nettoyage étant configuré pour former un champ électrique dans le canal d'écoulement au moyen d'électrodes (10, 12) situées face à face sur des côtés différents du canal d'écoulement, le procédé étant caractérisé par les étapes suivantes :
    détermination d'une caractéristique des particules qui encrassent le gaz et
    modification du mode de fonctionnement du dispositif d'ionisation en fonction de la caractéristique des particules d'encrassement qui a été déterminée.
  10. Utilisation d'un dispositif de nettoyage selon l'une des revendications 1 à 8 pour protéger un palier, en particulier un palier de roulement, de particules d'encrassement.
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 EP2696999A1 (fr) 2014-02-19
EP2696999B1 true EP2696999B1 (fr) 2016-02-24

Family

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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)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100574A1 (de) 2017-01-13 2018-07-19 Schaeffler Technologies AG & Co. KG Modul zur Verhinderung von Stromdurchgangsschäden bei einem Wälzlager sowie Wälzlageranordnung
WO2024068787A1 (fr) * 2022-09-28 2024-04-04 Woco Gmbh & Co. Kg Purificateur d'air ambiant

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107427839B (zh) * 2015-03-19 2020-11-17 沃克工业技术有限公司 用于分离污染物的设备和方法
AT18030U1 (de) * 2021-08-02 2023-11-15 Villinger Markus Reinigungsvorrichtung zum Reinigen eines Gases

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 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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017100574A1 (de) 2017-01-13 2018-07-19 Schaeffler Technologies AG & Co. KG Modul zur Verhinderung von Stromdurchgangsschäden bei einem Wälzlager sowie Wälzlageranordnung
WO2024068787A1 (fr) * 2022-09-28 2024-04-04 Woco Gmbh & Co. Kg Purificateur d'air ambiant

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Publication number Publication date
EP2696999A1 (fr) 2014-02-19
DE102011007470A1 (de) 2012-10-18
WO2012140069A1 (fr) 2012-10-18

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