EP1974822A2 - Filtre à poussière fine électrostatique - Google Patents

Filtre à poussière fine électrostatique Download PDF

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Publication number
EP1974822A2
EP1974822A2 EP08005469A EP08005469A EP1974822A2 EP 1974822 A2 EP1974822 A2 EP 1974822A2 EP 08005469 A EP08005469 A EP 08005469A EP 08005469 A EP08005469 A EP 08005469A EP 1974822 A2 EP1974822 A2 EP 1974822A2
Authority
EP
European Patent Office
Prior art keywords
fine dust
insulator
dust filter
electrostatic
filter according
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Withdrawn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
EP08005469A
Other languages
German (de)
English (en)
Other versions
EP1974822A3 (fr
Inventor
Rudolf Bolliger
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.)
Federal Mogul Ignition GmbH
Original Assignee
Bolliger Rudolf
Federal Mogul Ignition GmbH
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 Bolliger Rudolf, Federal Mogul Ignition GmbH filed Critical Bolliger Rudolf
Publication of EP1974822A2 publication Critical patent/EP1974822A2/fr
Publication of EP1974822A3 publication Critical patent/EP1974822A3/fr
Withdrawn legal-status Critical Current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
    • B03C3/40—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
    • B03C3/49—Collecting-electrodes tubular
    • 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
    • B03C2201/04—Ionising electrode being a wire
    • 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

Definitions

  • the present invention relates to a particulate matter filter according to the principle of electrostatic particle separation, for installation in new or existing chimneys of combustion plants or exhaust chimneys of particulate matter producing facilities, comprising an ionization body carried by an insulator to be connected via a high voltage cable to a high voltage source ,
  • a filter electrode is provided with a holder and provided for radial installation in an exhaust pipe through a mounting opening.
  • the holder is surrounded by an insulator on which a plate is arranged.
  • a chimney filter is known, which consists of a cyclone filter and a downstream soot particle catalyst.
  • the object of the present invention is thus to build an electrostatic fine dust filter which removes the fine dust particles from the chimney smoke and thus operates in the technical language as a so-called PM10 filter, where PM10 is less than 10 micrometers for particulate matter, and thus wood firing systems and other particulate matter generating facilities massively reduces the emission of particulate matter into the environment.
  • this electrostatic fine dust filter should be able to be installed very easily in all standard fireplaces, without the need for a fan or a blower with clean air and without the fireplace additional mounting hole must be installed ,
  • the electrostatic fine dust filter should be able to be introduced from the top of the fireplace, or from below through the chimney cleaning opening in the fireplace. This will allow small wood combustion plants, or other small particulate matter generating facilities to be operated in an environmentally sound manner in the future.
  • the electrostatic fine dust filter is a compact unit consisting of an insulator 1 whose lower part is electrostatically protected by a shielding unit 3 from dust and soot deposits, an ionization body 2 with a draft weight 6 and a frictional holder 4.
  • the electrostatic fine dust filter is a temperature-resistant High voltage cable 7 connected to a high voltage unit, not shown.
  • the electrostatic fine dust filter is made of temperature and chemical resistant material.
  • the supporting metal parts are for example made of chrome steel or spring steel.
  • the high voltage unit may have a positive or negative charge output. With the magnitude of the output voltage and with the shape and size of the ionization body, the amount of ozone gas produced is also adjusted.
  • the ozone converts CO into CO2. Ideally, as much ozone is produced as needed for CO reduction. With the ozone, other pollutants present in the flue gas can be neutralized.
  • the insulating parts of the electrostatic particulate filter such as insulator, draft weight, and high voltage cable may also be made of non-heat resistant material such as plastic.
  • the main feature of this filter is the shielding unit 3, which is made, for example, as a metal bracket arranged centrally around the insulator 1, or as a basket-like metal mesh, or metal pipe.
  • the shielding unit can for example also consist of centrally arranged around the insulator metal rings or metal spirals.
  • the shielding unit 3 is electrically conductively connected to the ionization body 2.
  • the shielding unit 3 thus forms an electrostatic field of the same polarity as the ionization body 2, which surrounds the insulator, whereby the electrically charged dust particles are deflected against the chimney wall 9 and do not settle on the insulator 1. This ensures that the connection point of the Ionisations stresses 2 no electrically conductive bridge of dust or soot particles can form on the insulator surface and no short circuits, flashovers, or leakage currents take place.
  • the ionization body 2 is advantageously formed as a very thin wire of suitable metal.
  • the surrounding air, or the flue gas, is ionized and the dust and soot particles are electrically charged.
  • the charged dust and soot particles are pushed by the electrostatic field to the opposite pole, the chimney pipe wall 9, and stick there as a dust cake.
  • the ionization body may consist of several fine wires ( Fig. 2-3 ). This accelerates the deposition of particles on the chimney wall.
  • the ionization wires can be very long (> 1m).
  • the ionization wire 2 is stretched with the draw weight 6 of non-conductive material, such as glass, porcelain or glass ceramic, and held in a vertical position. This prevents that a short circuit occurs when the draw weight 6 would touch the chimney wall 9 by swinging.
  • the draw weight 6 may have a spherical or elongated shape, wherein the outer structure may be rib-shaped to increase the creepage distance.
  • the ribs can also be arranged in a star shape in order to keep the drafting weight at a distance to the chimney wall when swinging.
  • the draw weight 6 can also be hollow, labyrinth-shaped or vessel-shaped in order to lengthen the creepage distance (FIG. Fig. 3 ).
  • the barrel-shaped drafting weight can also be arranged turned through 180 degrees so that the open side of the pot-shaped body is at the bottom.
  • the ionization wire 2 ends advantageously in the interior of the draw weight 6.
  • the draw weight may also be a metal body which is surrounded by an insulating material. The insulating material may for example be applied to the metal body in a dip, spray, electrochemical or other process.
  • the draw weight 6 depends on the ionization body 2. Due to the mostly turbulent gas flow, the draw weight comes to commute. By pendulum and striking the draw weight of the fireplace wall is in each case a blow to the ionization wire 2, whereby the ionization wire is cleaned of dust deposits.
  • the focus of the draft weight 6 is chosen so that the largest possible Rüttelwirkurig the fonisationsdraht 2 is formed in the blow.
  • the draw weight 6 may also be asymmetric, or be equipped with wings to increase the pendulum motion.
  • the ionization wire 2 is, viewed from the insulator 1, arranged in the opposite direction to the gas flow. Furthermore, the ionization wire 2 is so elongated that a large part of the particle separation takes place on the chimney wall 9 already below the insulator 1. Thus, the insulator 1 is additionally protected against particle deposits.
  • a rigid, elongated metal body may also be provided as the ionization body, for example a profile bar.
  • This preferably has ionization peaks on its surface which are directed at an angle to the longitudinal axis of the ionization body.
  • the ionization peaks can also emanate from recessed areas in the lateral surface of the ionization.
  • the chimney pipe 9 forms the opposite pole to the ionization wire 2 and is grounded via the outer cable sheath 11 of the high-voltage cable 7 or an additional earth connection.
  • the chimney pipe 9 must therefore consist of metal or have a metal layer.
  • a grounded metal pipe may be installed in the chimney for this purpose, or the chimney inside may be lined with a conductive or semi-conductive layer.
  • the high-temperature high-voltage cable 7 leads from above into the insulator 1.
  • the high-voltage leading inner conductor is conductively connected at the lower end of the insulator 1 with the holder of the Ablebügel 3 and the ionization wire 2.
  • the outer cable sheath 11 of the high-voltage cable 7, which is at ground potential, may be electrically connected to the frictional holder 4.
  • the cable sheath 11 may be a metal braid, a metal hose, a metal pipe, or a metal corrugated pipe.
  • the high voltage cable 7 may be surrounded or wrapped with heat-resistant insulating material 13.
  • the insulating material 13 may be made of glass fibers or ceramic fibers or other heat-insulating material.
  • the high-voltage cable 7 can be designed with a cable end closure which projects into the insulator 1.
  • the high voltage cable 7 is connected to a high voltage unit which supplies the necessary DC voltage for the ionization of the flue gas and the charging of the dust particles.
  • the frictional holder 4 may consist of a plurality of radially or spoke-shaped and attached to the insulator 1 spring elements or struts 4. These aim on the one hand the centering of the insulator 1 in the chimney pipe 9 and its vertical orientation and on the other hand the firm attitude of the electrostatic fine dust filter in the chimney pipe 9.
  • the holder 4 may also be mounted directly on the end piece 12.
  • the end piece 12 is fixedly connected to the cable sheath 11 and also carries the insulator 1 ( Fig. 4 ).
  • the struts 4 clamp the electrostatic fine dust filter in the fireplace frictionally.
  • the struts 4 are placed by the frictional connection with the chimney wall at ground potential.
  • the struts 4 consist for example of metal brackets made of aluminum, steel or spring steel.
  • the insulator 1 is made of a heat-resistant material, such as glass or porcelain or glass ceramic and preferably has a rib-like surface to extend the creepage distance.
  • the insulator 1 may be potted or filled inside with a heat-resistant insulating material 8.
  • the insulator 1 may also be vessel-shaped ( Fig. 4 ), or labyrinthine, to lengthen the creepage path.
  • An essential advantage of this electrostatic fine dust filter is its easy installation.
  • the assembly is carried out from below through the chimney cleaning opening 10.
  • the electrostatic fine dust filter is introduced through the chimney cleaning opening 10 in the chimney and then pushed up with a hook in the fireplace.
  • the struts 4 clamp the electrostatic particulate filter in the fireplace and keep the insulator 1 in the correct position.
  • the high voltage cable 7 is fixed with a Duichftihrungs flange in a slot at the chimney cleaning opening 10.
  • the electrostatic fine dust filter with the hook can be pulled out of the chimney.
  • the installation takes place from the end of the fireplace on the roof. After removing the chimney hat, the electrostatic fine dust filter is pushed down with a hook into the chimney.
  • the struts 4 clamp the electrostatic particulate filter in the fireplace and keep the insulator 1 in the correct position.
  • the high voltage cable 7 is led out of the top of the chimney and connected via the high voltage unit to the mains. To clean the chimney, the electrostatic fine dust filter with the hook can be pulled out of the chimney.
  • the high-voltage unit is switched on shortly before or during start-up and thus activates the electrostatic fine dust filter. Some time after completion of the firing, the high-voltage unit and thus the electrostatic fine dust filter can be switched off again become.
  • the switching on and off of the electrostatic fine dust filter can also be done automatically, for example by a built-in fireplace thermostat (not shown in the drawing).
  • the particulate matter filter can also be switched on and off via a wireless or wired remote control (not shown here).
  • the fine dust filter can also be operated independently of the mains, for example with a rechargeable battery, which is charged by a solar cell or by heating elements (Pellier element) (not shown here).
  • the high voltage unit Before or during firing, the high voltage unit is switched on.
  • the chimney pipe 9 is formed in the region of the ionization wire 2, an electric field with high field strength around the wire.
  • the ionization wire 2 of the electrostatic fine dust filter ionizes the surrounding air and charges all particulate matter and soot particles electrically.
  • the electrically charged particles are attracted to the counter electrode, the grounded flue wall, and settle there as a dust cake. Since the particle separation is already far below the insulator 1, it remains clean.
  • the insulator 1 is protected by the Ablebügel 3 in the region of the connection of the ionization wire with an electric field. This prevents fine dust deposition on the insulator 1 and prevents leakage currents and short circuits.
  • This electrostatic fine dust filter brings a significant improvement in the particulate matter and soot particle load of the chimney smoke in wood combustion systems, as well as in other polluted with fine dust exhaust chimneys.

Landscapes

  • Electrostatic Separation (AREA)
EP08005469A 2007-03-27 2008-03-25 Filtre à poussière fine électrostatique Withdrawn EP1974822A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4882007 2007-03-27

Publications (2)

Publication Number Publication Date
EP1974822A2 true EP1974822A2 (fr) 2008-10-01
EP1974822A3 EP1974822A3 (fr) 2010-12-15

Family

ID=39378766

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08005469A Withdrawn EP1974822A3 (fr) 2007-03-27 2008-03-25 Filtre à poussière fine électrostatique

Country Status (2)

Country Link
EP (1) EP1974822A3 (fr)
CH (1) CH702125B1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266702A1 (fr) 2009-06-27 2010-12-29 Karlsruher Institut für Technologie Séparateur électrostatique destiné au nettoyage de gaz de fumée avec un champ de verrouillage électrique
DE102010045508A1 (de) * 2010-09-15 2012-03-15 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung zur Behandlung von Rußpartikel enthaltendem Abgas
CN106765375A (zh) * 2015-11-23 2017-05-31 深圳市力德环保工程有限公司 一种烟道式油烟净化设备
CN110354996A (zh) * 2018-04-10 2019-10-22 Bsh家用电器有限公司 静电的过滤器单元和带有静电的过滤器单元的通风装置
DE102020212450A1 (de) 2020-10-01 2022-04-07 Vitesco Technologies GmbH Vorrichtung zur Abgasnachbehandlung in Feuerungsanlagen
CN116337703A (zh) * 2023-05-25 2023-06-27 江苏中能电力设备有限公司 一种用于烟气排放检测的测量装置

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2730191A (en) * 1954-04-01 1956-01-10 Westinghouse Electric Corp Electrostatic precipitator
US2780305A (en) * 1953-12-01 1957-02-05 Westinghouse Electric Corp Electrostatic precipitators
GB818996A (en) * 1955-08-30 1959-08-26 Westinghouse Electric Int Co Improvements in or relating to electrostatic precipitators
DE3324803A1 (de) * 1983-07-09 1985-01-17 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH, 4000 Düsseldorf Staubabscheidegeraet
JPH08117639A (ja) * 1994-10-18 1996-05-14 Midori Anzen Co Ltd 電気集塵装置
WO1997030274A1 (fr) * 1996-02-12 1997-08-21 Fleck Carl M Dispositif de purification des gaz d'echappement d'un moteur a combustion interne
WO2000033945A1 (fr) * 1998-12-04 2000-06-15 Applied Plasma Physics As Procede et dispositif de nettoyages d'effluents
JP2003086330A (ja) * 2001-09-11 2003-03-20 Kyushu Hitachi Maxell Ltd 放電装置
WO2003074184A1 (fr) * 2002-03-01 2003-09-12 Per-Tec Limited Support d'electrode
WO2004026482A1 (fr) * 2002-09-21 2004-04-01 Per-Tec Limited Amelioration apportee a et relative a des dispositifs d'epuration des gaz
DE102004039118B3 (de) * 2004-08-11 2005-08-11 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Elektrofilter für eine Feuerungsanlage
DE102004039124A1 (de) * 2004-08-11 2006-02-23 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Elektrofilter für eine Feuerungsanlage

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780305A (en) * 1953-12-01 1957-02-05 Westinghouse Electric Corp Electrostatic precipitators
US2730191A (en) * 1954-04-01 1956-01-10 Westinghouse Electric Corp Electrostatic precipitator
GB818996A (en) * 1955-08-30 1959-08-26 Westinghouse Electric Int Co Improvements in or relating to electrostatic precipitators
DE3324803A1 (de) * 1983-07-09 1985-01-17 Betriebsforschungsinstitut VDEh - Institut für angewandte Forschung GmbH, 4000 Düsseldorf Staubabscheidegeraet
JPH08117639A (ja) * 1994-10-18 1996-05-14 Midori Anzen Co Ltd 電気集塵装置
WO1997030274A1 (fr) * 1996-02-12 1997-08-21 Fleck Carl M Dispositif de purification des gaz d'echappement d'un moteur a combustion interne
WO2000033945A1 (fr) * 1998-12-04 2000-06-15 Applied Plasma Physics As Procede et dispositif de nettoyages d'effluents
JP2003086330A (ja) * 2001-09-11 2003-03-20 Kyushu Hitachi Maxell Ltd 放電装置
WO2003074184A1 (fr) * 2002-03-01 2003-09-12 Per-Tec Limited Support d'electrode
WO2004026482A1 (fr) * 2002-09-21 2004-04-01 Per-Tec Limited Amelioration apportee a et relative a des dispositifs d'epuration des gaz
DE102004039118B3 (de) * 2004-08-11 2005-08-11 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Elektrofilter für eine Feuerungsanlage
DE102004039124A1 (de) * 2004-08-11 2006-02-23 Eidgenössische Materialprüfungs- und Forschungsanstalt Empa Elektrofilter für eine Feuerungsanlage

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2266702A1 (fr) 2009-06-27 2010-12-29 Karlsruher Institut für Technologie Séparateur électrostatique destiné au nettoyage de gaz de fumée avec un champ de verrouillage électrique
DE102009030803A1 (de) 2009-06-27 2011-01-05 Karlsruher Institut für Technologie Elektrostatischer Abscheider zur Rauchgasreinigung mit einem elektrischen Sperrfeld
DE102010045508A1 (de) * 2010-09-15 2012-03-15 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung zur Behandlung von Rußpartikel enthaltendem Abgas
US8906315B2 (en) 2010-09-15 2014-12-09 Emitec Gesellschaft Fuer Emissionstechnologie Mbh Device for treating exhaust gas containing soot particles
CN106765375A (zh) * 2015-11-23 2017-05-31 深圳市力德环保工程有限公司 一种烟道式油烟净化设备
CN110354996A (zh) * 2018-04-10 2019-10-22 Bsh家用电器有限公司 静电的过滤器单元和带有静电的过滤器单元的通风装置
DE102020212450A1 (de) 2020-10-01 2022-04-07 Vitesco Technologies GmbH Vorrichtung zur Abgasnachbehandlung in Feuerungsanlagen
CN116337703A (zh) * 2023-05-25 2023-06-27 江苏中能电力设备有限公司 一种用于烟气排放检测的测量装置

Also Published As

Publication number Publication date
CH702125B1 (de) 2011-05-13
EP1974822A3 (fr) 2010-12-15

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