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EP0433152A1 - Elektrofilter mit Abreinigungssystem - Google Patents

Elektrofilter mit Abreinigungssystem Download PDF

Info

Publication number
EP0433152A1
EP0433152A1 EP90403509A EP90403509A EP0433152A1 EP 0433152 A1 EP0433152 A1 EP 0433152A1 EP 90403509 A EP90403509 A EP 90403509A EP 90403509 A EP90403509 A EP 90403509A EP 0433152 A1 EP0433152 A1 EP 0433152A1
Authority
EP
European Patent Office
Prior art keywords
tube
cleaning means
electrostatic filter
filter according
tubes
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Withdrawn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
EP90403509A
Other languages
English (en)
French (fr)
Inventor
Albert Briand
Michel Pourprix
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0433152A1 publication Critical patent/EP0433152A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B03C3/74—Cleaning the electrodes
    • B03C3/743—Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
    • 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
    • B03C3/74—Cleaning the electrodes

Definitions

  • the invention relates to an electrostatic filter provided with an unclogging or cleaning system.
  • an electrostatic filter In the case of a cylindrical geometry, an electrostatic filter generally consists of a tube axially traversed by a tensioned wire, or of a network of such tubes in parallel. One end of the tube leads to an intake pipe and the other end to an exhaust pipe, and an axial circulation of a gas to be dedusted takes place in the tube.
  • the object of the invention is therefore an electrostatic filter provided with an effective unclogging device which is composed, for each of the filtration systems consisting of a tube and a wire, of a cleaning means extending in the section of the tube, a control means capable of engaging the cleaning means in the tube and disengaging it from the tube by axial sliding.
  • the systems further comprise an additional closure means controlled by the control means, for closing the tube when the cleaning means is engaged and opening the tube when the cleaning means is released.
  • the cleaning means can for example be brushes or scraper lips arranged around cores sliding around the wires.
  • the means for closing and opening the tubes can take on the appearance of cups placed on the cleaning means or sealing rings arranged around the cores, and seals arranged on the cores and around the wires.
  • the tubes are constituted with an enlarged upper part in which the respective cup slides and a retaining part, located below the upper part, on which the cups abut.
  • the counterweights are on the other hand, like the cable to which they are suspended, separated from the respective wire by an electrical insulating zone when the corresponding cleaning means slides in the tube to carry out sweeping.
  • the electrical circuit consisting of the wire, the cleaning means, the cup, the counterweight and the cable is interrupted when the brush slides in the tube and the doctor blade.
  • the core can be provided with a wire scraping element.
  • FIG. 1A represents a single electrostatic filter consisting of a vertical tube 1 which opens at its lower end to a gas inlet pipe 2 via a closed tank 3 and at its upper end to an outlet pipe 4 via a funnel 5.
  • the funnel 5 is closed at the top by a cover 6 which is provided with a central opening closed by an insulating plug 7.
  • An electric power cable 8 arrives at the plug 7 and extends downward, in the tube 1, by a conductive wire 9 which passes through the plug 7 and which is stretched by a counterweight 10 inside the tank 3 Thanks to the electric power cable 8, the conducting wire 9 is brought to a potential different from that of the tube 1 connected to earth.
  • the plug 7 is provided with two other openings for the passage of two cables 11 from which is suspended a core 12 of cylindrical shape and which carries on its periphery the bristles, arranged in a radiating manner, of a brush 13.
  • the core 12 comprises a central opening into which the conductive wire 9 has been introduced.
  • the cleaning therefore consists in periodically sliding the brush 13 along the conducting wire 9 and the tube 1.
  • the solid deposits torn off fall to the bottom of the reservoir 3 which, for this purpose, extends notably below the lower end of the tube 1.
  • the brush 13 can be provided on the core 12 with a lip seal 14 which scrapes the conductive wire 9 and removes the deposit which may possibly cover it.
  • the openings of the plug 7 are provided with seals, not shown, which maintain the confinement of the gas flow.
  • the bristles of the brush 13, or of other materials such as felts for example, are of a nature suitable for removing the solid deposit as a function of the nature and the cohesion of this deposit. They can be provided metallic if necessary.
  • a cup 15 is placed on the core 12 and the brush 13 when they are in the funnel 5, and its diameter is greater than that of the tube 1 so that it comes to rest on the funnel 5, effectively obstructing the tube 1, when the cleaning is carried out and the brush 13 scrapes the wall of the tube 1. No rise in dust is to be feared.
  • the ropes 11 and the core 12 are advantageously made of electrical insulating material, but they can also be conductive. In all cases, it is necessary to interrupt the electrical supply to the conductive wire 9 during unclogging in order to avoid short-circuits with the tube 1.
  • the cleaning and sealing system is different in Figure 1B.
  • the central core 13 is replaced by a piston body 16 suspended from the cables 11 and whose diameter is almost equal to that of the tube 1. It carries on a top circumference a sealing ring 17 which rubs on the internal surface of the tube 1 and, on a lower circumference, a scraping lip 18 which scrapes the internal surface of the tube 1 and loosens the deposited dust.
  • the tube has a uniform section in this design.
  • the funnel 5 is therefore replaced by an electrically insulating jacket 20 in the form of a cylinder which extends the tube 1 proper.
  • the outlet pipe 4 opens downwards from the jacket 20; the piston body 16 is hoisted above this connection between two unclogging operations.
  • the filter of Figures 2, 3 and 4 is composed of six parallel vertical tubes 21 regularly distributed over a circle around a central tube 22 inactive.
  • the gas leaves the device via the outlet pipe 4 above the tubes 21 as in the previous embodiment, after passing through a collection tank 25.
  • the tubes 21 are connected to the collection tank 25 by funnels 26 made of insulating material each comprising an upper conical part 27 and a lower cylindrical connection part 28.
  • An insulating cover 29 is mounted on the upper face of the collection tank 25 and supports six motors 30, better represented in FIG. 3 and each of which drives a drum 31 from which hangs a rope 32 to which a brush 33 is suspended.
  • the conducting wires 34 stretched axially in the tubes 21 are fixed by their upper end to the cover 29 and are not directly connected to the electrical potential necessary for filtering.
  • the wires 34 extend into the distribution tank 24 where they are stretched by weights 35; to take account of the vortex circulation of gas, an insulating support piece 36 is incorporated into the device consisting of a plug 37 secured to the central tube 22, a rod 38 secured to the plug 37 and a star 39 secured to the stem 38 and the end of each of the branches has a hole in which a conductive wire 34 is threaded.
  • Figure 4 also shows the star 39.
  • the brushes 33 consist of a core 40 sliding on a respective conductive wire 34, of electrically conductive material and in electrical contact with the wire 34, of brush bristles or other materials for scraping the internal wall of the tubes 21 and d a cup 41 of electrically conductive material placed on the core 40, extending over the entire section of the tube 21 and provided with a passage opening for the rope 32 and the conductive wire 34.
  • the funnels 26 meet at a point-like confluence 42 where six conductive cables 43 are hung, each extending in a funnel 26 and terminated at their end by a counterweight 44.
  • An electric power cable 45 passes through the cover 29 by an insulating lug and carries the conducting cables 43 to the electrical potential intended for the conducting wires 34.
  • the conducting cable 43 corresponding to the tube 21 in question hangs against the funnel 26, and we note that its length is sufficient for the flyweight 44 door against the cylindrical part 28.
  • the funnel 26 is made of insulating material, the potential of the conductive cable 43 cannot be communicated to the conductive wire 34, and therefore no short-circuit due to the brush 33 is to be feared.
  • the cup 41 is used to close the tube 21 subjected to unclogging and rests at this time on an abutment surface 46 established on the cylindrical connection part 28, but which could also be established on the tube 21 itself.
  • the brushes 33 of the other tubes 21 are raised in the funnels 26 and the collection tank 25.
  • the cup 41 has been lifted from the abutment surface 46 by the core 40 and has collected the counterweight 44.
  • the conducting wire 34 is therefore brought to the potential necessary for filtration by means of a circuit comprising the electrical supply cable 45, a conductive cable 43, the cup 41 and the core 40. It is therefore possible to continue filtration even though one of the tubes 21 is subjected to unclogging and that there is a single device for feeding the conductive wires 34, that is to say which only branches out inside the device.
  • the cup 41 on the abutment surface 46 suppresses any gas flow through the tube 21 subjected to unclogging and temporarily unable to ensure filtration.
  • the cables 32 or 11 can be electrically conductive if necessary, for example if the gas is at high temperature.
  • the parts on which the they are wound or suspended, such as the drums 31, are then insulating.
  • the gases advantageously circulate upwardly through the tubes 1 or 21, so that the detached dust moves away falling from the installations downstream of the filter.

Landscapes

  • Electrostatic Separation (AREA)
EP90403509A 1989-12-12 1990-12-10 Elektrofilter mit Abreinigungssystem Withdrawn EP0433152A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916392A FR2655570B1 (fr) 1989-12-12 1989-12-12 Filtre electrostatique pourvu d'un systeme de decolmatage.
FR8916392 1989-12-12

Publications (1)

Publication Number Publication Date
EP0433152A1 true EP0433152A1 (de) 1991-06-19

Family

ID=9388401

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90403509A Withdrawn EP0433152A1 (de) 1989-12-12 1990-12-10 Elektrofilter mit Abreinigungssystem

Country Status (3)

Country Link
EP (1) EP0433152A1 (de)
JP (1) JPH06142551A (de)
FR (1) FR2655570B1 (de)

Cited By (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704776A1 (fr) * 1993-05-06 1994-11-10 Commissariat Energie Atomique Electrofiltre de gaz empoussiérés et procédé de filtration.
DE19822332C1 (de) * 1998-05-19 1999-05-27 Hengst Walter Gmbh & Co Kg Verfahren zum Reinigen von Elektrofiltern und Elektrofilter mit Reinigungsvorrichtung
EP1038582A1 (de) * 1999-03-22 2000-09-27 Chin-Chu Chang Ein elektrostatisches Staubsammelapparat
WO2002004126A1 (de) * 2000-07-11 2002-01-17 Ing. Walter Hengst Gmbh & Co. Kg Elektroabscheider
US6709484B2 (en) * 1998-11-05 2004-03-23 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter conditioner devices
US6749667B2 (en) * 2002-06-20 2004-06-15 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US6855190B1 (en) * 2004-04-12 2005-02-15 Sylmark Holdings Limited Cleaning mechanism for ion emitting air conditioning device
US6896853B2 (en) 1998-11-05 2005-05-24 Sharper Image Corporation Personal electro-kinetic air transporter-conditioner
US6911186B2 (en) 1998-11-05 2005-06-28 Sharper Image Corporation Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability
US6953556B2 (en) 1998-11-05 2005-10-11 Sharper Image Corporation Air conditioner devices
KR100530038B1 (ko) * 1999-10-26 2005-11-22 삼성테크윈 주식회사 파이프 세척장치
US6974560B2 (en) 1998-11-05 2005-12-13 Sharper Image Corporation Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability
US6984987B2 (en) 2003-06-12 2006-01-10 Sharper Image Corporation Electro-kinetic air transporter and conditioner devices with enhanced arching detection and suppression features
US7056370B2 (en) 2002-06-20 2006-06-06 Sharper Image Corporation Electrode self-cleaning mechanism for air conditioner devices
US7077890B2 (en) 2003-09-05 2006-07-18 Sharper Image Corporation Electrostatic precipitators with insulated driver electrodes
US7220295B2 (en) 2003-05-14 2007-05-22 Sharper Image Corporation Electrode self-cleaning mechanisms with anti-arc guard for electro-kinetic air transporter-conditioner devices
US7285155B2 (en) 2004-07-23 2007-10-23 Taylor Charles E Air conditioner device with enhanced ion output production features
US7291207B2 (en) 2004-07-23 2007-11-06 Sharper Image Corporation Air treatment apparatus with attachable grill
US7311762B2 (en) 2004-07-23 2007-12-25 Sharper Image Corporation Air conditioner device with a removable driver electrode
US7318856B2 (en) 1998-11-05 2008-01-15 Sharper Image Corporation Air treatment apparatus having an electrode extending along an axis which is substantially perpendicular to an air flow path
US7405672B2 (en) 2003-04-09 2008-07-29 Sharper Image Corp. Air treatment device having a sensor
US7517503B2 (en) 2004-03-02 2009-04-14 Sharper Image Acquisition Llc Electro-kinetic air transporter and conditioner devices including pin-ring electrode configurations with driver electrode
US7517505B2 (en) 2003-09-05 2009-04-14 Sharper Image Acquisition Llc Electro-kinetic air transporter and conditioner devices with 3/2 configuration having driver electrodes
US7517504B2 (en) 2001-01-29 2009-04-14 Taylor Charles E Air transporter-conditioner device with tubular electrode configurations
EP2056037A1 (de) * 2007-10-30 2009-05-06 Büchi Labortechnik AG Heizung, Verfahen zum Heizen und Laminarisieren, elektrostatischer Abscheider, Sprühtrockner, Abtrennvorrichtung und Verfahren zum Abtrennen von Partikeln
EP2060325A1 (de) 2007-11-19 2009-05-20 Paul Forsthuber Verfahren zum Reinigen von Elektrofiltern sowie Elektrofilter für die Durchführung dieses Verfahrens
ITVI20090034A1 (it) * 2009-02-24 2009-05-26 Daisy Srl Apparato per l'abbattimento delle polveri sottili auto-pulente per canne fumarie
DE102008012151A1 (de) * 2008-03-01 2009-09-10 Forschungszentrum Karlsruhe Gmbh Kollektorstufe eines elektrostatischen Abscheiders zur Reinigung von aus Verbrennungsprozessen entstandenem Rauchgas und Verfahren zum Betreiben
US7638104B2 (en) 2004-03-02 2009-12-29 Sharper Image Acquisition Llc Air conditioner device including pin-ring electrode configurations with driver electrode
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US7724492B2 (en) 2003-09-05 2010-05-25 Tessera, Inc. Emitter electrode having a strip shape
US7767169B2 (en) 2003-12-11 2010-08-03 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds
EP2236209A1 (de) * 2009-04-02 2010-10-06 Georg Hipp Maschinenbau GmbH Elektrofilter für den Einbau in Kamine für Helzanlagen und/oder für Kaminöten und/oder in Abluftkanäle für Entstaubungsanlagen oder Abzugsanlagen.
US7833322B2 (en) 2006-02-28 2010-11-16 Sharper Image Acquisition Llc Air treatment apparatus having a voltage control device responsive to current sensing
US7959869B2 (en) 1998-11-05 2011-06-14 Sharper Image Acquisition Llc Air treatment apparatus with a circuit operable to sense arcing
US8043573B2 (en) 2004-02-18 2011-10-25 Tessera, Inc. Electro-kinetic air transporter with mechanism for emitter electrode travel past cleaning member
US20110308773A1 (en) * 2010-06-21 2011-12-22 Tessera, Inc. Granular abrasive cleaning of an emitter wire
EP2458281A2 (de) 2010-11-26 2012-05-30 Kutzner + Weber GmbH Reinigungsvorrichtung für Kamine
CN102979599A (zh) * 2012-11-27 2013-03-20 上海理工大学 机械式高温静电柴油机尾气颗粒物净化器
EP1958696A3 (de) * 2007-02-16 2013-04-24 Otto Spanner GmbH Elektrofilter
EP2065094A3 (de) * 2007-11-27 2013-04-24 Meister Umwelt Technologie AG Elektrofilter
US8482898B2 (en) 2010-04-30 2013-07-09 Tessera, Inc. Electrode conditioning in an electrohydrodynamic fluid accelerator device
US20140130675A1 (en) * 2011-06-22 2014-05-15 Koninklijke Philips N.V. Cleaning device for cleaning the air-ionizing part of an
CN107185712A (zh) * 2016-03-15 2017-09-22 哈尔滨宏万智科技开发有限公司 一种简易的电除尘过滤装置
CN109433423A (zh) * 2018-11-26 2019-03-08 北京涌阔科技有限公司 一种节能型电收尘装置及其收尘方法
EP3492175A1 (de) 2017-12-04 2019-06-05 PHX Innovation ApS Elektrostatisches abscheidersystem mit einem gitter zum sammeln von partikeln
US11635231B2 (en) 2019-09-03 2023-04-25 Sl-Technik Gmbh Rotating grate with a cleaning device for a biomass heating system
EP4321252A1 (de) * 2022-08-05 2024-02-14 ELFIPROJEKT Sp. z o.o. Vorrichtung und verfahren zur elektrostatischen abscheidung von gasen
USD1028199S1 (en) 2018-06-13 2024-05-21 Exodraft a/s Smoke extractor

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CN105562211B (zh) * 2015-10-16 2017-10-13 建湖隆新石油机械有限公司 静电除尘器
CA3090705C (en) 2018-10-26 2024-02-27 Buffalo Filter Llc Filtering system, apparatus, and method
CN113085489A (zh) * 2021-04-25 2021-07-09 江苏万航车辆科技有限公司 一种具有风口清洁结构的大巴车用风道

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Cited By (72)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2704776A1 (fr) * 1993-05-06 1994-11-10 Commissariat Energie Atomique Electrofiltre de gaz empoussiérés et procédé de filtration.
US6348103B1 (en) 1998-05-19 2002-02-19 Firma Ing. Walter Hengst Gmbh & Co. Kg Method for cleaning electrofilters and electrofilters with a cleaning device
DE19822332C1 (de) * 1998-05-19 1999-05-27 Hengst Walter Gmbh & Co Kg Verfahren zum Reinigen von Elektrofiltern und Elektrofilter mit Reinigungsvorrichtung
WO1999059724A1 (de) * 1998-05-19 1999-11-25 Ing. Walter Hengst Gmbh & Co. Kg Verfahren zum reinigen von elektrofiltern und elektrofilter mit reinigungsvorrichtung
US7097695B2 (en) 1998-11-05 2006-08-29 Sharper Image Corporation Ion emitting air-conditioning devices with electrode cleaning features
US6953556B2 (en) 1998-11-05 2005-10-11 Sharper Image Corporation Air conditioner devices
US8425658B2 (en) 1998-11-05 2013-04-23 Tessera, Inc. Electrode cleaning in an electro-kinetic air mover
US6709484B2 (en) * 1998-11-05 2004-03-23 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter conditioner devices
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US7976615B2 (en) 1998-11-05 2011-07-12 Tessera, Inc. Electro-kinetic air mover with upstream focus electrode surfaces
US6896853B2 (en) 1998-11-05 2005-05-24 Sharper Image Corporation Personal electro-kinetic air transporter-conditioner
US7662348B2 (en) 1998-11-05 2010-02-16 Sharper Image Acquistion LLC Air conditioner devices
US6911186B2 (en) 1998-11-05 2005-06-28 Sharper Image Corporation Electro-kinetic air transporter and conditioner device with enhanced housing configuration and enhanced anti-microorganism capability
US7959869B2 (en) 1998-11-05 2011-06-14 Sharper Image Acquisition Llc Air treatment apparatus with a circuit operable to sense arcing
US7767165B2 (en) 1998-11-05 2010-08-03 Sharper Image Acquisition Llc Personal electro-kinetic air transporter-conditioner
US6972057B2 (en) 1998-11-05 2005-12-06 Sharper Image Corporation Electrode cleaning for air conditioner devices
US6974560B2 (en) 1998-11-05 2005-12-13 Sharper Image Corporation Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability
US7404935B2 (en) 1998-11-05 2008-07-29 Sharper Image Corp Air treatment apparatus having an electrode cleaning element
US7318856B2 (en) 1998-11-05 2008-01-15 Sharper Image Corporation Air treatment apparatus having an electrode extending along an axis which is substantially perpendicular to an air flow path
USRE41812E1 (en) 1998-11-05 2010-10-12 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner
EP1038582A1 (de) * 1999-03-22 2000-09-27 Chin-Chu Chang Ein elektrostatisches Staubsammelapparat
KR100530038B1 (ko) * 1999-10-26 2005-11-22 삼성테크윈 주식회사 파이프 세척장치
WO2002004126A1 (de) * 2000-07-11 2002-01-17 Ing. Walter Hengst Gmbh & Co. Kg Elektroabscheider
US6635105B2 (en) 2000-07-11 2003-10-21 Ing. Walter Hengst Gmbh & Co. Kg Electrostatic precipitator
KR100759638B1 (ko) * 2000-07-11 2007-09-17 헹스트 게엠베하 운트 코. 카게 정전 분리기
US7517504B2 (en) 2001-01-29 2009-04-14 Taylor Charles E Air transporter-conditioner device with tubular electrode configurations
US7056370B2 (en) 2002-06-20 2006-06-06 Sharper Image Corporation Electrode self-cleaning mechanism for air conditioner devices
US6908501B2 (en) * 2002-06-20 2005-06-21 Sharper Image Corporation Electrode self-cleaning mechanism for air conditioner devices
US6749667B2 (en) * 2002-06-20 2004-06-15 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US7405672B2 (en) 2003-04-09 2008-07-29 Sharper Image Corp. Air treatment device having a sensor
US7220295B2 (en) 2003-05-14 2007-05-22 Sharper Image Corporation Electrode self-cleaning mechanisms with anti-arc guard for electro-kinetic air transporter-conditioner devices
US6984987B2 (en) 2003-06-12 2006-01-10 Sharper Image Corporation Electro-kinetic air transporter and conditioner devices with enhanced arching detection and suppression features
US7371354B2 (en) 2003-06-12 2008-05-13 Sharper Image Corporation Treatment apparatus operable to adjust output based on variations in incoming voltage
US7517505B2 (en) 2003-09-05 2009-04-14 Sharper Image Acquisition Llc Electro-kinetic air transporter and conditioner devices with 3/2 configuration having driver electrodes
US7077890B2 (en) 2003-09-05 2006-07-18 Sharper Image Corporation Electrostatic precipitators with insulated driver electrodes
US7724492B2 (en) 2003-09-05 2010-05-25 Tessera, Inc. Emitter electrode having a strip shape
US7767169B2 (en) 2003-12-11 2010-08-03 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds
US8043573B2 (en) 2004-02-18 2011-10-25 Tessera, Inc. Electro-kinetic air transporter with mechanism for emitter electrode travel past cleaning member
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FR2655570A1 (fr) 1991-06-14
FR2655570B1 (fr) 1992-06-19
JPH06142551A (ja) 1994-05-24

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