EP0416452B1 - Câble pour électrofiltre - Google Patents

Câble pour électrofiltre Download PDF

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Publication number
EP0416452B1
EP0416452B1 EP90116546A EP90116546A EP0416452B1 EP 0416452 B1 EP0416452 B1 EP 0416452B1 EP 90116546 A EP90116546 A EP 90116546A EP 90116546 A EP90116546 A EP 90116546A EP 0416452 B1 EP0416452 B1 EP 0416452B1
Authority
EP
European Patent Office
Prior art keywords
electrical filter
filter cable
electrical
conductor
cable 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.)
Expired - Lifetime
Application number
EP90116546A
Other languages
German (de)
English (en)
Other versions
EP0416452A3 (en
EP0416452A2 (fr
Inventor
Wolfgang Krieger
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.)
Suedkabel GmbH
Original Assignee
Suedkabel 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 Suedkabel GmbH filed Critical Suedkabel GmbH
Publication of EP0416452A2 publication Critical patent/EP0416452A2/fr
Publication of EP0416452A3 publication Critical patent/EP0416452A3/de
Application granted granted Critical
Publication of EP0416452B1 publication Critical patent/EP0416452B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/0054—Cables with incorporated electric resistances

Definitions

  • the invention relates to an electrostatic filter cable according to the preamble of claim 1.
  • Such an electrostatic filter cable is e.g. known from the cable + wire publication K + D 1060D (2.78) MGD, page 1.
  • This electrostatic precipitator cable has a round, multi-wire aluminum conductor as the internal electrical conductor and is used in an electrostatic precipitator system to connect a high-voltage rectifier system to a spray wire arranged in a filter housing.
  • the filter housing is at earth potential.
  • EP-A-0 329 188 describes a completely different application for a high-voltage cable. This has a ferrite rubber conductor and is used to suppress interference in the frequency range from 30 to 200 MHz. A core made of polyamide fiber is used to reinforce its tensile strength.
  • FR-A-2 068 780 describes an electrostatic filter cable in which the conductor consists of ferromagnetic material and a layer of plastic made weakly conductive and an insulation is applied over it.
  • the high inductive resistance of the ferromagnetic conductor material dampens the pulse peaks.
  • the conductive plastic layer on the other hand, only has the task of smoothing unevenness on the conductor surface, so that increased field strengths that would lead to stress on the insulation are avoided.
  • the invention has for its object to provide an electrostatic filter cable, with the help of which the structure of an electrostatic filter system can be simplified.
  • the inner electrical conductor consists of a conductive plastic with a specific resistance in the range 2 to 200 ⁇ mm / m.
  • the advantages that can be achieved with the invention consist in particular in that, by using the proposed electrostatic filter cable, damping resistances no longer have to be provided between the spray wire, electrostatic filter cable and rectifier system.
  • the proposed electrostatic precipitator cable also assumes the function of damping the overvoltages which occur in the electrostatic precipitator in accordance with the regulations.
  • the weight of the electrostatic filter cable is advantageously reduced. Handling is also simplified. If the tensile strength of the proposed electrostatic filter cable is not sufficient, additional tensile materials can be introduced into the inner electrical conductor.
  • the electrostatic filter cable has a conductor 1 made of an electrically conductive plastic.
  • conductive polymers e.g. a PE copolymer
  • polypyrroles can be used as conductive plastics for the conductor 1.
  • the specific electrical resistance ranges from 2 to 200 ⁇ mm / m and is preferably 10 ⁇ mm / m. However, the exact value to be selected depends to a large extent on the type, embodiment, operating mode and performance of the electrostatic precipitator used.
  • the conductor 1 made of conductive plastic can be encased by an inner conductive layer 2.
  • This inner conductive layer 2 can be dispensed with if, for example, a conductive polymer with a smooth surface is used as conductor 1, since it is then not necessary to smooth the conductor 1 to ensure that the field strength occurring on the surface is reliably controlled.
  • the inner conductive layer 2 or directly the conductor 1 are surrounded by an insulation 3 made of cross-linked polyethylene (VPE).
  • the insulation 3 is encased by an outer conductive layer 4 made of an electrically conductive application or an extruded one conductive material. This is followed by a further outer conductive layer 5 made of a conductive tape.
  • the outer guiding layers 4, 5 serving to limit the field are covered by a copper screen consisting of copper wires with a counter helix.
  • a separating layer 7 and a PVC outer jacket 8 follow.
  • Fig. 2 shows the use of an electrostatic filter cable in an electrostatic filter system.
  • the electrostatic filter cable 9 can be seen, which is connected on the one hand to a rectifier system 10 and, on the other hand, reaches into the interior of a cylindrical dust filter housing 12 of the electrostatic filter system via an insulator 11 and applies a high direct voltage to a spray wire 13 there.
  • the metallic, electrically conductive dust removal filter housing 12 has a raw gas inlet opening 14 arranged laterally in its lower part, a clean gas outlet opening 15 located laterally in its upper part and a dust outlet opening 16 arranged centrally in its lower part.
  • the raw gas inlet, the clean gas outlet and the dust outlet are each indicated by arrows.
  • the dust originating from the raw gas and driven by the high DC voltage applied to the wall of the dedusting filter housing 12 is shown in dotted lines.
  • Numeral 17 denotes the ground cable of the dust filter housing 12 on the one hand and the rectifier system 10 on the other.
  • the rectifier system 10 is supplied by a three-phase supply 18.
  • FIG. 3 and 4 different variants are shown in the design of the inner electrical conductor of the electrostatic filter cable.
  • the tensile strength of the conductor 1 and thus of the electrostatic filter cable can be considerably increased by the variants shown.
  • a central strand 19 is provided in the inner electrical conductor 1, while according to FIG. 4 several — in the example four — individual strands 20 are arranged symmetrically distributed in the conductor 1.
  • the central strand 19 or the individual strands 20 consist of a tensile, electrically non-conductive material, preferably of a very tensile, electrically non-conductive plastic, such as e.g. Polyamide, polypropylene or similar (against glass fiber reinforced).
  • a very tensile, electrically non-conductive plastic such as e.g. Polyamide, polypropylene or similar (against glass fiber reinforced).
  • it is also possible to dispense with the additional incorporation of these tensile materials if the electrostatic filter cable equipped with a conduct

Landscapes

  • Electrostatic Separation (AREA)
  • Insulated Conductors (AREA)

Claims (8)

  1. Câble pour connecter une électrode d'émission (13) d'un électrofiltre à un système (10) de redressement de courant délivrant une haute tension, lequel câble comprend un conducteur électrique (1) intérieur, un isolant (3) en polyéthylène réticulé, une couche (4, 5) conductrice extérieure, un blindage (6) en cuivre et une enveloppe (8) extérieure en PCV, caractérisé par le fait que le conducteur (1) électrique intérieur est constitué exclusivement d'une matière synthétique susceptible de conduire l'électricité avec une résistance spécifique comprise dans la plage allant de 2 à 200 Ohms mm/m et est dimensionné de manière telle que la résistance ohmique du câble (9) d'électrofiltre provoque une atténuation des surtensions qui apparaissent lors des décharges liées au principe de fonctionnement.
  2. Câble pour électrofiltre selon la revendication 1, caractérisé par le fait que le conducteur (1) électrique intérieur est formé d'un polymère électroconducteur.
  3. Câble pour électrofiltre selon la revendication 1, caractérisé par le fait que le conducteur (1) électrique intérieur est formé d'un polypyrrole.
  4. Câble pour électrofiltre selon l'une des revendications 1 à 3, caractérisé par le fait que la résistance spécifique du conducteur (1) est de 10 Ω mm/m.
  5. Câble pour électrofiltre selon l'une des revendications 1 à 4, caractérisé par le fait qu'au mois un fil (19, 20) en un matériau non conducteur de l'électricité et résistant à la traction est disposé à l'intérieur du conducteur (1) électrique intérieur en matériau électroconducteur.
  6. Câble pour électrofiltre selon la revendication 5, caractérisé par le fait que l'on utilise un polyamide comme matériau résistant à la traction.
  7. Câble pour électrofiltre selon la revendication 5, caractérisé par le fait que l'on utilise un polypropylène comme matériau résistant à la traction.
  8. Câble pour électrofiltre selon l'une des revendications 5 à 7, caractérisé par le fait que le matériau résistant à la traction est renforcé par fibres de verre.
EP90116546A 1989-09-05 1990-08-29 Câble pour électrofiltre Expired - Lifetime EP0416452B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3929450 1989-09-05
DE3929450A DE3929450A1 (de) 1989-09-05 1989-09-05 Elektrofilterkabel

Publications (3)

Publication Number Publication Date
EP0416452A2 EP0416452A2 (fr) 1991-03-13
EP0416452A3 EP0416452A3 (en) 1992-04-29
EP0416452B1 true EP0416452B1 (fr) 1996-02-14

Family

ID=6388662

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116546A Expired - Lifetime EP0416452B1 (fr) 1989-09-05 1990-08-29 Câble pour électrofiltre

Country Status (3)

Country Link
US (1) US5068497A (fr)
EP (1) EP0416452B1 (fr)
DE (2) DE3929450A1 (fr)

Families Citing this family (27)

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Publication number Priority date Publication date Assignee Title
DE4138889A1 (de) * 1991-01-30 1992-08-13 Felten & Guilleaume Energie Roentgenleitung
US5212350A (en) * 1991-09-16 1993-05-18 Cooper Industries, Inc. Flexible composite metal shield cable
WO1994002948A1 (fr) * 1992-07-27 1994-02-03 Motorola, Inc. Cable coaxial enroule
US5418332A (en) * 1993-06-01 1995-05-23 Moncrieff; J. Peter Electrical cable using combination of high resistivity and low resistivity materials as conductors
DE9310993U1 (de) * 1993-07-22 1994-11-17 Gore W L & Ass Gmbh Breitband-Hochfrequenz-taugliches elektrisches Koaxialkabel
DE4328435A1 (de) * 1993-08-24 1995-03-02 Metallgesellschaft Ag Erdungsleitung
US5426264A (en) * 1994-01-18 1995-06-20 Baker Hughes Incorporated Cross-linked polyethylene cable insulation
FR2723245B1 (fr) * 1994-08-01 1996-09-13 Cortaillod Cables Sa Cable de transport d'energie electrique ou de telecommunication et procede de fabrication d'un tel cable
FR2743188B1 (fr) * 1995-12-28 1998-01-23 Alsthom Cge Alcatel Procede de fabrication d'un polymere de conductivite electrique amelioree, application de ce procede a la fabrication de cable et cable obtenu par ce procede
DE19637472A1 (de) * 1996-09-13 1998-03-26 Schnier Elektrostatik Gmbh Schwingungsfreies bedämpftes Hochspannungskabel
JP3501607B2 (ja) 1997-01-21 2004-03-02 コアックス株式会社 遮蔽型多心ケーブル及びその製法
US7154043B2 (en) 1997-04-22 2006-12-26 Belden Technologies, Inc. Data cable with cross-twist cabled core profile
US6074503A (en) 1997-04-22 2000-06-13 Cable Design Technologies, Inc. Making enhanced data cable with cross-twist cabled core profile
BR9811932B1 (pt) 1997-08-14 2011-12-27 cabo coaxial e mÉtodo para a fabricaÇço do mesmo.
US6201190B1 (en) 1998-09-15 2001-03-13 Belden Wire & Cable Company Double foil tape coaxial cable
US6417454B1 (en) 2000-06-21 2002-07-09 Commscope, Inc. Coaxial cable having bimetallic outer conductor
US7244893B2 (en) 2003-06-11 2007-07-17 Belden Technologies, Inc. Cable including non-flammable micro-particles
US20040256139A1 (en) * 2003-06-19 2004-12-23 Clark William T. Electrical cable comprising geometrically optimized conductors
WO2005013292A1 (fr) 2003-07-28 2005-02-10 Belden Cdt Networking, Inc. Cable de donnees a reglage de distribution asymetrique
US7208683B2 (en) 2005-01-28 2007-04-24 Belden Technologies, Inc. Data cable for mechanically dynamic environments
US8664817B2 (en) * 2010-09-13 2014-03-04 Baker Hughes Incorporated Electrical submersible pump system having high temperature insulation materials and buffered lubricant
FR2990791B1 (fr) * 2012-05-16 2015-10-23 Nexans Cable de transmission electrique a haute tension
CN103117126A (zh) * 2013-02-21 2013-05-22 南京全信传输科技股份有限公司 低烟无卤阻燃纵向水密纵向气密电力电缆及其制备方法
DE102015117584A1 (de) * 2015-10-15 2017-04-20 Rwe Power Ag Verfahren und Vorrichtung zum Filtern von Kohlenstäuben aus dem Abdampf der Kohletrockung
CN105976905A (zh) * 2016-06-30 2016-09-28 江苏红峰电缆集团有限公司 一种改进型辐照交联聚乙烯绝缘电缆
US10381897B2 (en) * 2017-07-25 2019-08-13 Wisconsin Alumni Research Foundation Bus bar with integrated voltage rise time filter
US11848120B2 (en) * 2020-06-05 2023-12-19 Pct International, Inc. Quad-shield cable

Citations (1)

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Publication number Priority date Publication date Assignee Title
EP0329188A2 (fr) * 1988-02-19 1989-08-23 Yazaki Corporation Câble haute tension pour suppression du bruit et méthode pour sa fabrication

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US2325549A (en) * 1941-05-24 1943-07-27 Okonite Co Ignition cable
FR1449321A (fr) * 1964-11-02 1966-03-18 Dow Corning Matières conductrices de l'électricité
BE758126A (fr) * 1969-12-05 1971-04-01 Kabel Metallwerke Ghh Cable d'alimentation pour des installations d'electrofiltres
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Patent Citations (1)

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EP0329188A2 (fr) * 1988-02-19 1989-08-23 Yazaki Corporation Câble haute tension pour suppression du bruit et méthode pour sa fabrication

Also Published As

Publication number Publication date
DE3929450A1 (de) 1991-03-07
DE59010130D1 (de) 1996-03-28
EP0416452A3 (en) 1992-04-29
EP0416452A2 (fr) 1991-03-13
US5068497A (en) 1991-11-26

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