EP1562202A1 - Procédé et dispositif pour la préparation de câbles a couches isolantes ou semiconductrices réticulées avec un péroxyde - Google Patents

Procédé et dispositif pour la préparation de câbles a couches isolantes ou semiconductrices réticulées avec un péroxyde Download PDF

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Publication number
EP1562202A1
EP1562202A1 EP05001330A EP05001330A EP1562202A1 EP 1562202 A1 EP1562202 A1 EP 1562202A1 EP 05001330 A EP05001330 A EP 05001330A EP 05001330 A EP05001330 A EP 05001330A EP 1562202 A1 EP1562202 A1 EP 1562202A1
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EP
European Patent Office
Prior art keywords
degassing
inert gas
cable
crosslinking
linking
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.)
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Application number
EP05001330A
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German (de)
English (en)
Inventor
Hans Walter Dr.-Ing. Gitschner
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.)
Troester GmbH and Co KG
Original Assignee
Troester GmbH and Co KG
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Filing date
Publication date
Application filed by Troester GmbH and Co KG filed Critical Troester GmbH and Co KG
Publication of EP1562202A1 publication Critical patent/EP1562202A1/fr
Withdrawn legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/14—Insulating conductors or cables by extrusion

Definitions

  • the invention relates to a method for crosslinking the insulation or semiconductor layer a cable in the making, the one under pressure passes through standing, filled with hot inert gas reaction chamber.
  • the cross-linking process Since in the crosslinking reaction by the decomposition of the dicumyl peroxide gaseous Forming fission products, the cross-linking process to avoid a Gasens and pore formation under pressure of 10 to 16 bar out. Directly following the cross-linking process, it also starts under overpressure carried out cooling process, which usually takes place in the same tube. In order to due to a high content of fissile in which the conductor or conductors ummantelnden Extrudate no pore formation takes place, it requires a long-lasting aftertreatment during storage of the finished cable.
  • a very rapid degassing takes place in extruders in a degassing zone, where by reducing the screw core diameter on a short Range of otherwise high degree of filling greatly reduced and the pressure through external gas can be sucked into the vacuum source. That is here, however in the treatment of the insulation and / or semiconductor layers of a cable not possible because this treatment must be carried out under overpressure and a vacuum can not stand.
  • the invention avoids the disadvantages of the prior art. It is the task invention, networking and degassing faster and less expensive perform.
  • the invention achieves this acceleration of crosslinking in that the one or more conductors with the progress of networking in the Crosslinking zone of the reaction chamber heated by inductive heating stronger. Behind the cross-linking zone is before cooling in the reaction chamber introduced a zone in which a degassing by strong inductive heating the leader is performed.
  • the heated inert gas atmosphere surrounding the cable in the reactor chamber is heated to a greater extent.
  • This can be done by heating the reactor chamber from the outside, it can also be done by guiding the inert gas in a circulation stream and heating this circulation stream.
  • the progressing from the inside and outside to the middle of the insulation or semiconductor layer networking which entails an increase in dimensional stability, used to progress by raising the temperature in the interior, ie in the conductor, the networking faster.
  • the increase in dimensional stability occurring as the crosslinking progresses is utilized in order to further increase the temperature of the conductor.
  • one can achieve an exponential progression of the cross-linking with time (residence time in the reactor) or with the length of the passage of the reactor and thereby also shorten the usual reactor length.
  • the inductive heating is carried out only then, if the cross-linking on the inside of the or the conductors facing the Insulation or semiconductor layer through the initially fed into the conductor or conductors Heat a dimensionally stable networking of the inner layer of the insulation or Has caused semiconductor layer.
  • the networking succeeds faster and less expensive to perform in a shorter reactor chamber. That applies to Cables that require degassing, as well as cables that are not degassed have to.
  • the invention goes with the same Inductive heating means before and consists in that the networked cable even before it cools down in a degassing section by increasing its Temperature levels is degassed in the pressure atmosphere.
  • This degassing conveniently takes place in the same reactor chamber the same pressure in an inert gas atmosphere.
  • a (pre) cooling zone is here in the invention in the reactor chamber behind the cross-linking zone another zone, the degassing zone with further internal and external heat input into the cable, downstream.
  • These Degassing zone is upstream of the cooling zone.
  • the inert gas must be cleaned from time to time, better but constantly, so that the cleavage products are not too high partial pressure in the overpressure atmosphere occupy the cross-linking and degassing, resulting in surface influences of the cable, but also can cause the gaseous fission products impeded in their exit from the or to be crosslinked layers become. Conveniently, therefore, and for further energy savings the inert gas of the degassing of a purification of gaseous fission products from the crosslinking reaction.
  • the inert gas of the degassing together with the inert gas from the crosslinking path in a through the cleaning device leading circuit is performed.
  • the temperatures in the degassing line and can be significantly different in the networking route In this case, it is expedient if the inert gas of the degassing section separated from the inert gas of the crosslinking section by the cleaning device (s) leading circuit is performed.
  • the gaseous fission products can be reduced Part even when leaving the reactor tube in the insulation and / or Semiconductor layer of the cable may be present.
  • a final degassing finds if necessary shortly before or during winding in Temperaturhaltestrekken at a temperature of 40 ° to 100 ° C, preferably 55 ° to 75 ° C, instead or in temper chambers.
  • resulting from the cooling deformations on the cable can by reheating to a temperature range just below the Melting point or higher for activation of restoring forces and memory effects be eliminated.
  • the degassing is advantageous if in the degassing a conductor heating done by an induction heater. Then the fission products preferably released in Leiteaufähe and can with the further migration of the cable migrate to the outside, where they enter the compressed gas atmosphere of the degassing diffuse.
  • crosslinking, the Degassing and subsequent pre-cooling in a common pipe in which the individual sections for the cross-linking, the degassing and the subsequent pre-cooling through the inlet and outlet nozzles for the warm, heated and cooled inert gas are divided.
  • Another possibility of delineating the individual pipe sections exists in that the networking, the degassing and the subsequent pre-cooling in a common pipe, in which the individual sections for the Networking, degassing and subsequent pre-cooling through locks or bottlenecks for the warm, heated and cooled inert gas are divided.
  • the plant with which the above-described method for producing cables with peroxidically crosslinked insulation and / or semiconductor layers can be carried out consists of a conductor unwinder, an insulating and / or semiconductor layer applying crosshead, a heated reactor for networking, a Cooling section and a cable rewinder.
  • the innovative feature is that the conductor (s) are progressively heated to a greater extent as the movement in the reactor chamber progresses, and thus as inductive heating progresses. It is also inventive that between the crosslinking section and the cooling section in the reactor, a degassing section filled with inert gas and operating at elevated temperature level and overpressure is arranged.
  • This degassing is used to dispense the gaseous fission products from the crosslinking extrudate on the conductor or conductor bundle already in the state of origin, so that the cable enters the cooling section with a smooth surface and greatly reduced content of fission products, thus not after passing through the cooling section more under particular energy and expense for special and particularly complex downstream equipment parts must be removed. This allows to perform the degassing faster and less expensive.
  • the temperature level of the cable which is particularly high immediately in front of the cooling section, is used to increase the temperature for a short time by further inductive energy input into the conductor (s) in order to remove the main part of the gaseous fission products even before entry into the cooling section.
  • the separation of the crosslinking distance from the degassing line and the Cooling section can be done by pipe constrictions.
  • inert gas circulation of the degassing section is expediently at least a heater for replenishing occurred heat losses provide. So it is advantageous if at the entrance of the degassing in this an induction heater is provided for conductor heating. At the end of the Degassing path associated cleaning path is a heating system for provided the purified inert gas.
  • This system is particularly advantageous in that for networking, the degassing and the subsequent cooling a common pipe is provided, in which the individual sections for the cross-linking, degassing and the final cooling through the inlet and outlet nozzles for the warm, heated and cooled inert gas are divided.
  • the mentioned various systems are shown, in which the Ladder 1 is first guided over a deflection wheel 2. This conductor 1 is then in fed by a non-illustrated extruder transverse spray head 3 with a Insulation and / or semiconductor layer sheathed and leaves the crosshead 3 as not yet finished cable 4, its insulation and / or semiconductor layer still requires networking.
  • This networking takes place in an assembled from several pieces of pipe, serving as a reactor tube 6 under heat and pressure in a Inert gas atmosphere.
  • the insulation and / or semiconductor layer may initially not higher than the melting temperature of the insulating and / or semiconductor layer to be heated. The temperature must after reaching a certain dimensional stability but by setting the cross-linking as high as possible, so that the networking then progresses quickly. From the outside, the heating takes place cable 4 by hot, the cable flowing around inert gas.
  • the cable 4 is but also heated from the inside by an induction heating of the conductor 1 by means the induction heating device 5, which is arranged immediately in front of the cross-spray head 3 is, so that the conductor 1 already preheated with the isolation and / or Semiconductor layer is coated and thus heat from the inside to the isolation and / or Semiconductor layer outputs.
  • This induction heating can be one or more times, for example, in the places where individual tubes of the reactor are flanged together, be installed.
  • the cross-linking and the exit of the gaseous decomposition products can be accelerated become. This is done by heating above the melting temperature of the insulation and / or semiconductor layer. That is possible if the networking is so is far advanced that the insulation and / or semiconductor layer by a Heating above its melting temperature no longer loses its dimensional stability.
  • the crosslinking region 6 and the degassing region 8 are through a bottleneck separated in the reactor tube, so that the different temperatures in both areas are kept at their intended level can.
  • This bottleneck is formed by the induction heater 7.
  • the reactor tube Constriction 9 which serves the networking area 8 of one of the pre-cooling Cooling zone 10 separates, in which an inert gas atmosphere of lower temperature and in the same pressure as in the cross-linking zone 6 and the degassing zone 8 prevails.
  • a lock 11 At the end of the cooling zone 10 is a lock 11, the inert gas inside the reactor tube of the with a Coolant operated cooling zone 12 separates. In this cooling zone 12 is the Cooled down the cable so that it is wound onto a cable drum can.
  • the inert gas at the point 13 is withdrawn from the reaction tube 6,8,10 and passes through a serving as a regeneration path 14 tube, which through a cleaning device 15 and a heating device 16 leads.
  • a cleaning device 15 is the withdrawn from the reactor tube inert gas released from the gaseous decomposition products, in the heating device 16 it is brought back to the desired temperature for the degassing to then be reintroduced into the reactor tube at the point of entry 17.
  • the Flow direction of the inert gas is indicated by an arrow.
  • this inert gas circuit is divided into two different circuits 18. One for the crosslinking region 6 and the other for the degassing 8. That has energetic advantages.
  • the flow directions of the inert gas in the two Circuits is indicated by an arrow.
  • Fig. 3 a vertically constructed system is shown.
  • like reference numerals refer to the same items as in the previous ones Characters.
  • Fig. 4 shows the further treatment of the from the Vorkühlzone 10 of the chainline Reactor tube exiting cable 4 in the cooling zone 12.
  • the cable runs after Passing the lock 11 in a water-filled pressure cooling pipe 21, from which it exits through the lock 22.
  • the invention thus relates to a method and a system for networking the Insulation or semiconductor layer of a cable being manufactured, the one under pressure, filled with hot inert gas reaction chamber passes.
  • the plant is dominated by a very long reactor tube, the requires a particularly long and therefore complex production hall.
  • the networking and possibly subsequent degassing perform faster and less expensive.
  • the invention exists in that one or the ladder as the movement in the reactor chamber progresses and thus with progressive networking by inductive heating heated more. By this measure, the inside and outside to the middle the insulating or semiconductor layer progressing networking, the enlargement the dimensional stability is used, in order to increase by increasing the Temperature inside, so in the conductor, the networking to progress faster to let.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
EP05001330A 2004-01-30 2005-01-24 Procédé et dispositif pour la préparation de câbles a couches isolantes ou semiconductrices réticulées avec un péroxyde Withdrawn EP1562202A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004004910 2004-01-30
DE102004004910A DE102004004910A1 (de) 2004-01-30 2004-01-30 Verfahren und Anordnungen zur Fertigung von peroxidisch vernetzbaren Polyethylenadern für Mittel- und Hochspannungskabel

Publications (1)

Publication Number Publication Date
EP1562202A1 true EP1562202A1 (fr) 2005-08-10

Family

ID=34673123

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05001330A Withdrawn EP1562202A1 (fr) 2004-01-30 2005-01-24 Procédé et dispositif pour la préparation de câbles a couches isolantes ou semiconductrices réticulées avec un péroxyde

Country Status (5)

Country Link
US (1) US20060182880A1 (fr)
EP (1) EP1562202A1 (fr)
JP (1) JP2005216864A (fr)
CN (1) CN1652262A (fr)
DE (1) DE102004004910A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010002973A1 (fr) * 2008-07-02 2010-01-07 Dow Global Technologies Inc. Procédé amélioré pour dégazer des câbles
EP2755211B1 (fr) 2013-01-09 2019-03-06 Maillefer S.A. Procédé et agencement pour réticuler ou vulcaniser un élément allongé

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2015315B1 (fr) * 2007-07-12 2012-12-12 Borealis Technology Oy Processus de préparation et réticulation d'un câble comportant une composition de polymère et câble réticulé
EP2015314B1 (fr) * 2007-07-12 2012-04-04 Borealis Technology Oy Processus de préparation et réticulation d'un câble comportant une composition de polymère et câble réticulé
US8822824B2 (en) 2011-04-12 2014-09-02 Prestolite Wire Llc Methods of manufacturing wire, multi-layer wire pre-products and wires
US20120261160A1 (en) 2011-04-13 2012-10-18 Prestolite Wire Llc Methods of manufacturing wire, wire pre-products and wires
FI20115960A0 (fi) * 2011-09-30 2011-09-30 Maillefer Sa Menetelmä ja sovitelma pitkänomaisen elementin ristisilloittamiseksi ja vulkanoimiseksi
CN102932786B (zh) * 2012-09-27 2017-12-15 腾讯科技（深圳）有限公司 一种信息传输方法及终端
DE102015100735A1 (de) * 2015-01-20 2016-07-21 Atlas Elektronik Gmbh Verfahren zur Fertigung eines Unterwasserkabels, Unterwasserkabel, Unterseekabel, Schlepp-Sonar und Fahrzeug
CN104979051B (zh) * 2015-06-03 2017-01-11 浙江万马股份有限公司 66-500kV交联电缆短脱气在线处理工艺
CN105548825B (zh) * 2015-12-03 2018-04-06 四川明星电缆股份有限公司 高压超高压交联电缆去气试验装置、方法及效果检测方法
CN106128653A (zh) * 2016-08-15 2016-11-16 河南开启电力实业有限公司 中高压电缆交联生产线用除气装置
CN113571255B (zh) * 2021-07-20 2022-12-16 宁波东方电缆股份有限公司 一种电缆去气系统及去气控制方法
CN117672638B (zh) * 2024-02-01 2024-04-05 四川新东方电缆集团有限公司 一种高效便捷的铝合金电缆制作工艺

Citations (2)

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Publication number Priority date Publication date Assignee Title
DE2906173A1 (de) * 1979-02-17 1980-08-21 Harald Sikora Verfahren und vorrichtung zur kontinuierlichen vernetzung von isoliermaterial fuer elektrische leiter
US4222980A (en) * 1977-09-29 1980-09-16 Anaconda Wire And Cable Company Method for continuously making cable

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DE2311947A1 (de) * 1973-03-07 1974-09-12 Siemens Ag Einschneckenextruder mit entgasungszone
DE2707297B1 (de) * 1977-02-19 1978-05-24 Felten & Guilleaume Carlswerk Verfahren zur Herstellung einer isolierenden Umhuellung aus vernetztem Isolierstoff
DE3909036C1 (fr) * 1989-03-18 1990-01-25 Paguag Gmbh & Co, 4000 Duesseldorf, De
FI89987C (fi) * 1991-10-30 1993-12-10 Maillefer Nokia Oy Foerfarande foer vaermebehandling av en kabel
EP0830386B2 (fr) * 1995-06-07 2008-06-11 Cryovac, Inc. Compositions a squelette ethylenique et a chaines laterales benzyliques, allyliques ou contenant de l'ether, compositions desoxygenantes contenant ces compositions et procede de fabrication de ces compositions par esterification ou transesterification d'un polymere fondu
DE29622976U1 (de) * 1996-08-28 1997-09-04 Felten & Guilleaume Energie Tempervorrichtung für Kabel-Adern

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222980A (en) * 1977-09-29 1980-09-16 Anaconda Wire And Cable Company Method for continuously making cable
DE2906173A1 (de) * 1979-02-17 1980-08-21 Harald Sikora Verfahren und vorrichtung zur kontinuierlichen vernetzung von isoliermaterial fuer elektrische leiter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010002973A1 (fr) * 2008-07-02 2010-01-07 Dow Global Technologies Inc. Procédé amélioré pour dégazer des câbles
EP2755211B1 (fr) 2013-01-09 2019-03-06 Maillefer S.A. Procédé et agencement pour réticuler ou vulcaniser un élément allongé

Also Published As

Publication number Publication date
JP2005216864A (ja) 2005-08-11
US20060182880A1 (en) 2006-08-17
DE102004004910A1 (de) 2005-08-25
CN1652262A (zh) 2005-08-10

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