EP2539906A1 - Device for hardening resin - Google Patents

Device for hardening resin

Info

Publication number
EP2539906A1
EP2539906A1 EP11708751A EP11708751A EP2539906A1 EP 2539906 A1 EP2539906 A1 EP 2539906A1 EP 11708751 A EP11708751 A EP 11708751A EP 11708751 A EP11708751 A EP 11708751A EP 2539906 A1 EP2539906 A1 EP 2539906A1
Authority
EP
European Patent Office
Prior art keywords
heat exchange
winding
reaction chamber
winding body
heat
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Withdrawn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
EP11708751A
Other languages
German (de)
French (fr)
Inventor
Engelbert Engels
Michael Koch
Achim Langens
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP2539906A1 publication Critical patent/EP2539906A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/02—Casings
    • H01F27/04—Leading of conductors or axles through casings, e.g. for tap-changing arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/005—Impregnating or encapsulating

Definitions

  • the invention relates to a device for curing resin, with which a winding body of a high-voltage bushing has been impregnated, with a reaction chamber arranged to receive the Wick ⁇ ment body, which is bounded by a reaction chamber housing, and nickel-zinc-silicon carbide, and zinc-silicon carbide, and zinc-silicon carbide, calcium carbonate, calcium carbonate, calcium carbonate, calcium carbonate, calcium carbonate, calcium carbonate, calcium carbonate, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicates, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate, calcium silicate
  • Such a device is known from practice.
  • So-called resin-impregnated high-voltage feedthroughs are produced by first winding layers of creped paper onto a copper high-voltage conductor.
  • electrically conductive inserts are introduced into the winding body in addition to the paper layers. After winding of the said layers of the thus obtained coil body with liquid resin is defined impregnation and then cured, the resin in a reaction chamber from ⁇ .
  • High-voltage bushings of this type are characterized in English with the Passus RIP (Resin Impregnated Paper). They usually serve to lead high voltages through a Ge ⁇ housing wall, which is at a ground potential. In order to be able to be used even at high voltage ranges, for example at DC voltages of up to 500 kV or more, it is important to reliably avoid partial discharges during operation of the high-voltage bushing. For this reason, the resin of the winding body should be freezing and stress free ⁇ cured. Especially with large winding ⁇ bodies, for extremely high DC voltages of over 800 kV are necessary, due to the exothermic Christsab ⁇ run during curing of the resin correspondingly large heat ⁇ gen generated. These large amounts of heat can not be dissipated quickly enough when using reaction chambers according to the prior art, so that when curing large winding body temperature gradients arise, which led to voids, so cavities in the resin composition.
  • the object of the invention is to provide a device of the type mentioned, with which the resin of a designed for high voltage ranges winding body can be cured voids and stress-free.
  • the invention achieves this object in that the heat from ⁇ exchange means are both adapted for direct heat exchange with the reaction chamber as well as with the coil body.
  • heat exchange means are provided which allow so ⁇ well a heat transfer between the reaction chamber and the heat exchange means as well as a direct heat transfer between the winding body and the heat exchange means.
  • the winding body is not cooled indirectly via the reaction chamber or the reaction chamber housing. Rather, in the context of the invention, a direct heat transfer between the heat exchange means and the winding body.
  • the heat of reaction generated during curing of the resin at least partially passes directly into the heat exchange means and is removed therefrom, so that the winding body is better able to is cool. High temperature gradients with mechanical stresses and voids in the wake are avoided in this way.
  • a direct heat transfer is achieved when the heat generated in the winding body is not delivered to the reaction chamber, but directly to the heat exchange means, which provide a separate cooling for the winding body.
  • the heat exchange means comprises at least one winding ⁇ heat exchange unit for direct heat exchange with the coil body and at least one chamber heat exchange unit for direct heat exchange with the reaction chamber housing.
  • the reaction chamber housing is cooled or heated by at least one chamber heat exchange unit. The heat ⁇ transition thus takes place directly between the Kammer Hadaus ⁇ exchange aggregate and the reaction chamber housing. The interior of the reaction chamber is then indirectly cooled via the thus cooled or heated heat reaction chamber housing.
  • a winding heat exchange unit is provided, which is in heat-conducting contact with the winding body.
  • a direct heat transfer between the winding heat exchange unit and the Wicklungskör ⁇ per takes place.
  • winding heat exchange unit for heat exchange with the Wi ⁇ ckelkern of the winding body.
  • the generally electrically and thus highly thermally conductive winding core is according to this variant of the invention in direct heat-conducting contact with the wound heat exchange unit.
  • the heat output Exchange thus takes place directly between the winding core and the winding heat exchange unit.
  • the winding core is hollow, wherein the Wickel139aus ⁇ (2004)aggregat attachment means for integrating the hollow Wi ⁇ ckelkerns in the winding heat exchange unit, wherein a fluid heat exchange means for heat transfer is used.
  • a fluid ie gaseous or liquid coolant
  • Winding core so for example, a high-voltage ⁇ conductor, out.
  • the fluid heat exchange medium transported ⁇ advantage of heat between the high voltage conductor and a heating and / or cooling unit of the winding heat exchange unit. This can be done, for example, by forming a closed heat exchange circuit in which the hollow high-voltage conductor is integrated.
  • regulating means are provided for adjusting the temperature of the winding body as a function of a predetermined setpoint temperature.
  • the removal of the exothermic heat of reaction is carried out regulated in the sense that, for example in egg ⁇ nem closed heat circuit, the circulation rate and / or the temperature of the heat exchange medium is so verän- changed that a predetermined temperature as accurately as possible setting in the coil body.
  • the Control means to a logic unit, with the aid of a comparison between the predetermined setpoint and actual temperature values is carried out while obtaining a control difference. The control difference is then fed to a suitable controller.
  • cooling coil in the hollow winding core of the winding body.
  • the cooling coil is example ⁇ part of a cooling circuit.
  • the length of this cooling ⁇ snake depends on the particular requirements.
  • the figure shows an embodiment of the device 1 according to the invention in a schematic representation.
  • the device 1 shown has a reaction chamber 2, which is circumferentially bounded by a reaction chamber housing 3.
  • the reaction chamber 3 is provided for receiving a ge with ge ⁇ impregnated winding body 4 a high-voltage feedthrough, which is designed for voltages up to 800 kV.
  • the winding body 4 is dimensioned accordingly and has a tubular and thus inside hollow winding core or a tubular high-voltage conductor 5, which is shown in dashed lines.
  • insulating layers of creped paper and electrically conductive potential control inserts were wound so that the potential control inserts are separated by the insulating layers.
  • the winding body 5 consisting of creped paper and potential control pads was then dipped in liquid resin. In the reaction ⁇ chamber 2 of the thus-formed winding body 4 is to be cured.
  • the curing of the resin is an exothermic process in which heat of reaction is released.
  • the chamber heat exchange unit 7 is in direct thermal contact with the reaction chamber housing 3 and is part of a heat cycle, which is only indicated in the Fi ⁇ gur.
  • the heat cycle has a heat exchange liquid, which is circulated in the heat cycle of the chamber heat exchange unit 7 by means of a circulation pump, not shown.
  • the wound heat exchange unit 8 has, for example, a rod-shaped support, not shown in the FIGURE. prepare, where a cooling coil is fastened. The heat exchange fluid is circulated through this cooling coil . Thus, a direct heat transfer between the winding heat exchange unit 8 and winding body 4 is provided because a detour via the reaction chamber 3 is avoided.
  • a hollow winding core of the winding body 4 can also be used as a pipeline and be integrated into a heat exchange circuit of the Wi ⁇ ckel139-based aggregates 8, so that the winding core is continuously flowed through by a heat exchange fluid.
  • the winding core for example, the high voltage conductor ⁇ 5.
  • a heat exchange fluid is circulated kontinuier ⁇ Lich not like the Kammer Creekaus ⁇ exchange aggregate. 7 Rather, as indicated by the double arrow in the figure, a heat exchange fluid is used, which is moved within the winding heat exchange unit 8, for example by a pump back and forth. This also leads to a heat transfer, in which the heat is dissipated from the high-voltage conductor 5.
  • the heat can be so supplied or removed even with large winding bodies 4, that a stress-free and lun ⁇ kerlusters curing in the resin composition is possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Insulating Of Coils (AREA)

Abstract

The aim of the invention is to provide a device (1) for hardening resin with which a winding body (4) of a high-voltage duct has been impregnated, said device comprising a reaction chamber (2) designed to receive the winding body (4) and defined by a reaction chamber housing (3), and heat exchanging means (6) for cooling or heating the reaction chamber (2), the resin of the winding body (4) being able to be hardened by said device, without the formation of cavities or stress. To this end, the heat exchanging means (6) are designed for direct heat exchange with both the reaction chamber (2) and the winding body (4).

Description

Beschreibung description
Vorrichtung zum Aushärten von Harz Die Erfindung betrifft eine Vorrichtung zum Aushärten von Harz, mit dem ein Wicklungskörper einer Hochspannungsdurchführung imprägniert wurde, mit einer zur Aufnahme des Wick¬ lungskörpers eingerichteten Reaktionskammer, die von einem Reaktionskammergehäuse begrenzt ist, und Wärmeaustauschmit- teln zum Kühlen oder Heizen der Reaktionskammer. The invention relates to a device for curing resin, with which a winding body of a high-voltage bushing has been impregnated, with a reaction chamber arranged to receive the Wick ¬ ment body, which is bounded by a reaction chamber housing, and Wärmeaustauschmit- means for cooling or heating the reaction chamber.
Eine solche Vorrichtung ist aus der Praxis bekannt. So werden so genannte harzimprägnierte Hochspannungsdurchführungen hergestellt, indem zunächst Lagen aus gekrepptem Papier auf ei- nem Hochspannungsleiter aus Kupfer gewickelt werden. Zur Ab- steuerung hoher elektrischer Feldstärken werden neben den Papierlagen elektrisch leitfähige Einlagen in den Wicklungskörper eingebracht. Nach dem Aufwickeln der besagten Lagen wird der so gewonnenen Wicklungskörper mit flüssigem Harz impräg- niert und das Harz anschließend in einer Reaktionskammer aus¬ gehärtet . Such a device is known from practice. So-called resin-impregnated high-voltage feedthroughs are produced by first winding layers of creped paper onto a copper high-voltage conductor. To control high electric field strengths, electrically conductive inserts are introduced into the winding body in addition to the paper layers. After winding of the said layers of the thus obtained coil body with liquid resin is defined impregnation and then cured, the resin in a reaction chamber from ¬.
Hochspannungsdurchführungen dieser Art werden im Englischen mit dem Passus RIP (Resin Impregnated Paper) charakterisiert. Sie dienen in der Regel dazu, hohe Spannungen durch eine Ge¬ häusewand zu führen, die auf einem Erdpotential liegt. Um auch bei hohen Spannungsbereichen, beispielsweise bei Gleichspannungen bis zu 500 kV oder mehr, einsetzbar zu sein, ist es wichtig, Teilentladungen während des Betriebs der Hoch- spannungsdurchführung sicher zu vermeiden. Aus diesem Grunde sollte das Harz des Wicklungskörpers lunker- und spannungs¬ frei ausgehärtet werden. Insbesondere bei großen Wicklungs¬ körpern, die für extrem hohe Gleichspannungen von über 800 kV notwendig sind, werden aufgrund des exothermen Reaktionsab¬ laufes beim Aushärten des Harzes entsprechend große Wärmemen¬ gen erzeugt. Diese großen Wärmemengen können bei Verwendung von Reaktionskammern gemäß dem Stand der Technik nicht schnell genug abgeführt werden, so dass beim Aushärten großer Wicklungskörper Temperaturgradienten entstehen, welche zu Lunkern, also zu Hohlräumen, in der Harzmasse führten. High-voltage bushings of this type are characterized in English with the Passus RIP (Resin Impregnated Paper). They usually serve to lead high voltages through a Ge ¬ housing wall, which is at a ground potential. In order to be able to be used even at high voltage ranges, for example at DC voltages of up to 500 kV or more, it is important to reliably avoid partial discharges during operation of the high-voltage bushing. For this reason, the resin of the winding body should be freezing and stress free ¬ cured. Especially with large winding ¬ bodies, for extremely high DC voltages of over 800 kV are necessary, due to the exothermic Reaktionsab ¬ run during curing of the resin correspondingly large heat ¬ gen generated. These large amounts of heat can not be dissipated quickly enough when using reaction chambers according to the prior art, so that when curing large winding body temperature gradients arise, which led to voids, so cavities in the resin composition.
Aus der DE 10 2004 045 537 D3 ist eine Reaktionskammer bekannt, die im Innern eine Kühlvorrichtung aufweist. From DE 10 2004 045 537 D3 a reaction chamber is known, which has a cooling device inside.
Aufgabe der Erfindung ist es, eine Vorrichtung der eingangs genannten Art bereitzustellen, mit der das Harz eines für hohe Spannungsbereiche ausgelegten Wicklungskörpers lunker- und spannungsfrei ausgehärtet werden kann. The object of the invention is to provide a device of the type mentioned, with which the resin of a designed for high voltage ranges winding body can be cured voids and stress-free.
Die Erfindung löst diese Aufgabe dadurch, dass die Wärmeaus¬ tauschmittel sowohl zum unmittelbaren Wärmeaustausch mit der Reaktionskammer als auch mit dem Wicklungskörper eingerichtet sind . The invention achieves this object in that the heat from ¬ exchange means are both adapted for direct heat exchange with the reaction chamber as well as with the coil body.
Erfindungsgemäß sind Wärmeaustauschmittel vorgesehen, die so¬ wohl einen Wärmeübergang zwischen der Reaktionskammer und den Wärmeaustauschmitteln als auch einen direkten Wärmeübergang zwischen dem Wicklungskörper und den Wärmeaustauschmitteln ermöglichen. Mit anderen Worten wird erfindungsgemäß der Wicklungskörper nicht indirekt über die Reaktionskammer oder das Reaktionskammergehäuse gekühlt. Vielmehr erfolg im Rahmen der Erfindung auch ein direkter Wärmeübergang zwischen den Wärmeaustauschmitteln und dem Wicklungskörper. Somit geht die beim Aushärten des Harzes erzeugte Reaktionswärme zumindest teilweise direkt in die Wärmeaustauschmittel über und wird von diesen abgeführt, so dass der Wicklungskörper besser ge- kühlt ist. Hohe Temperaturgradienten mit mechanischen Spannungen und Lunkern im Gefolge sind auf diese Weise vermieden. Ein direkter Wärmeübergang ist dann erreicht, wenn die im Wicklungskörper erzeugte Wärme nicht an die Reaktionskammer abgegeben wird, sondern unmittelbar an die Wärmeaustauschmittel, die eine gesonderte Kühlung für den Wicklungskörper bereitstellen . According to the invention, heat exchange means are provided which allow so ¬ well a heat transfer between the reaction chamber and the heat exchange means as well as a direct heat transfer between the winding body and the heat exchange means. In other words, according to the invention, the winding body is not cooled indirectly via the reaction chamber or the reaction chamber housing. Rather, in the context of the invention, a direct heat transfer between the heat exchange means and the winding body. Thus, the heat of reaction generated during curing of the resin at least partially passes directly into the heat exchange means and is removed therefrom, so that the winding body is better able to is cool. High temperature gradients with mechanical stresses and voids in the wake are avoided in this way. A direct heat transfer is achieved when the heat generated in the winding body is not delivered to the reaction chamber, but directly to the heat exchange means, which provide a separate cooling for the winding body.
In einer vorteilhaften Weiterentwicklung der Erfindung weisen die Wärmeaustauschmittel mindestens ein Wickelwärmeaustausch¬ aggregat zum unmittelbaren Wärmeaustausch mit dem Wicklungskörper und wenigstens ein Kammerwärmeaustauschaggregat zum unmittelbaren Wärmeaustausch mit dem Reaktionskammergehäuse auf. Gemäß dieser vorteilhaften Weiterentwicklung der Erfindung wird durch wenigstens ein Kammerwärmeaustauschaggregat das Reaktionskammergehäuse gekühlt oder erwärmt. Der Wärme¬ übergang findet somit direkt zwischen dem Kammerwärmeaus¬ tauschaggregat und dem Reaktionskammergehäuse statt. Über das so gekühlte oder aufgeheizte Wärmereaktionskammergehäuse wird anschließend der Innenraum der Reaktionskammer indirekt gekühlt. Darüber hinaus ist ein Wickelwärmeaustauschaggregat vorgesehen, das in wärmeleitendem Kontakt mit dem Wicklungskörper steht. Hierbei findet ein direkter Wärmeübergang zwischen dem Wickelwärmeaustauschaggregat und dem Wicklungskör¬ per statt. In an advantageous further development of the invention, the heat exchange means comprises at least one winding ¬ heat exchange unit for direct heat exchange with the coil body and at least one chamber heat exchange unit for direct heat exchange with the reaction chamber housing. According to this advantageous development of the invention, the reaction chamber housing is cooled or heated by at least one chamber heat exchange unit. The heat ¬ transition thus takes place directly between the Kammerwärmeaus ¬ exchange aggregate and the reaction chamber housing. The interior of the reaction chamber is then indirectly cooled via the thus cooled or heated heat reaction chamber housing. In addition, a winding heat exchange unit is provided, which is in heat-conducting contact with the winding body. Here, a direct heat transfer between the winding heat exchange unit and the Wicklungskör ¬ per takes place.
In der diesbezüglich zweckmäßigen Weiterentwicklung ist das Wickelwärmeaustauschaggregat zum Wärmeaustausch mit dem Wi¬ ckelkern des Wicklungskörpers eingerichtet. Der in der Regel elektrisch und somit gut wärmeleitende Wickelkern steht gemäß dieser Variante der Erfindung in unmittelbarem wärmeleitenden Kontakt mit dem Wickelwärmeaustauschaggregat. Der Wärmeaus- tausch erfolgt somit direkt zwischen dem Wickelkern und dem Wickelwärmeaustauschaggregat . In this regard, appropriate development of the winding heat exchange unit is set up for heat exchange with the Wi ¬ ckelkern of the winding body. The generally electrically and thus highly thermally conductive winding core is according to this variant of the invention in direct heat-conducting contact with the wound heat exchange unit. The heat output Exchange thus takes place directly between the winding core and the winding heat exchange unit.
Gemäß einer diesbezüglich zweckmäßigen Weiterentwicklung ist der Wickelkern hohl ausgebildet, wobei das Wickelwärmeaus¬ tauschaggregat Aufsatzmittel zum Integrieren des hohlen Wi¬ ckelkerns in das Wickelwärmeaustauschaggregat aufweist, wobei ein fluides Wärmeaustauschmittel zum Wärmetransport dient. Gemäß dieser vorteilhaften Weiterentwicklung wird ein fluides also gasförmiges oder flüssiges Kühlmittel in den hohlenAccording to an expedient further development of this, the winding core is hollow, wherein the Wickelwärmeaus ¬ tauschaggregat attachment means for integrating the hollow Wi ¬ ckelkerns in the winding heat exchange unit, wherein a fluid heat exchange means for heat transfer is used. According to this advantageous further development, a fluid, ie gaseous or liquid coolant, becomes hollow
Wicklungskern, also beispielsweise einen hohen Hochspannungs¬ leiter, geführt. Das fluide Wärmeaustauschmittel transpor¬ tiert Wärme zwischen dem Hochspannungsleiter und einem Heiz- und/oder Kühlaggregat des Wickelwärmeaustauschaggregats. Dies kann beispielsweise durch Ausbilden eines geschlossenen Wärmeaustauschkreises erfolgen, in den der hohle Hochspannungs¬ leiter integriert ist. Winding core, so for example, a high-voltage ¬ conductor, out. The fluid heat exchange medium transported ¬ advantage of heat between the high voltage conductor and a heating and / or cooling unit of the winding heat exchange unit. This can be done, for example, by forming a closed heat exchange circuit in which the hollow high-voltage conductor is integrated.
Zum Umwälzen des Wärmeaustauschmittels in dem so gebildeten geschlossenen Kühl- oder Heizkreis dient eine zweckmäßige Um¬ wälzpumpe . Is an appropriate order ¬ circulation pump for circulating the heat exchange medium into the thus formed closed cooling or heating circuit.
Gemäß einer vorteilhaften Weiterentwicklung sind Reglungsmit- tel zum Einstellen der Temperatur des Wicklungskörpers in Ab- hängigkeit einer vorgegebenen Sollwerttemperatur vorgesehen. Mit anderen Worten erfolgt das Abführen der exothermen Reaktionswärme geregelt in dem Sinne, dass beispielsweise bei ei¬ nem geschlossenen Wärmekreis die Umwälzgeschwindigkeit und/oder die Temperatur des Wärmeaustauschmittels so verän- dert wird, dass sich in dem Wicklungskörper eine vorgegebene Temperatur möglichst genau einstellt. Zum Erfassen der jewei¬ ligen Ist-Temperatur am Wicklungskörper sind zweckmäßig angeordnete Temperaturgeber vorgesehen. Darüber hinaus weisen die Reglungsmittel eine Logikeinheit auf, mit deren Hilfe ein Vergleich zwischen dem vorgegebenen Soll- und Ist- Temperaturwerten unter Gewinnung einer Regeldifferenz durchgeführt wird. Die Regeldifferenz wird anschließend einem zweckmäßigen Regler zugeführt. According to an advantageous further development, regulating means are provided for adjusting the temperature of the winding body as a function of a predetermined setpoint temperature. In other words, the removal of the exothermic heat of reaction is carried out regulated in the sense that, for example in egg ¬ nem closed heat circuit, the circulation rate and / or the temperature of the heat exchange medium is so verän- changed that a predetermined temperature as accurately as possible setting in the coil body. For detecting the time jewei ¬ actual temperature at the winding body suitably arranged temperature sensors are provided. In addition, the Control means to a logic unit, with the aid of a comparison between the predetermined setpoint and actual temperature values is carried out while obtaining a control difference. The control difference is then fed to a suitable controller.
Selbstverständlich ist es im Rahmen der Erfindung auch möglich eine längliche Kühlschlange in den hohlen Wickelkern des Wicklungskörpers einzuführen. Die Kühlschlange ist beispiels¬ weise Teil eines Kühlkreislaufes. Die Länge dieser Kühl¬ schlange ist von den jeweiligen Anforderungen abhängig. Of course, it is within the scope of the invention also possible to introduce an elongated cooling coil in the hollow winding core of the winding body. The cooling coil is example ¬ part of a cooling circuit. The length of this cooling ¬ snake depends on the particular requirements.
Weitere zweckmäßige Ausgestaltungen und Vorteile der Erfin¬ dung sind Gegenstand der nachfolgenden Beschreibung von Ausführungsbeispielen unter Bezug auf die Figur der Zeichnung, wobei die Further expedient embodiments and advantages of the inven ¬ tion are the subject of the following description of exemplary embodiments with reference to the figure of the drawing, wherein the
Figur ein Ausführungsbeispiel der erfindungsgemäßen Figure an embodiment of the invention
Vorrichtung in einer schematischen Darstellung zeigt .  Device in a schematic representation shows.
Die Figur zeigt ein Ausführungsbeispiel der erfindungsgemäßen Vorrichtung 1 in einer schematischen Darstellung. Die gezeigte Vorrichtung 1 verfügt über eine Reaktionskammer 2, die von einem Reaktionskammergehäuse 3 umfänglich begrenzt ist. The figure shows an embodiment of the device 1 according to the invention in a schematic representation. The device 1 shown has a reaction chamber 2, which is circumferentially bounded by a reaction chamber housing 3.
Die Reaktionskammer 3 ist zur Aufnahme eines mit Harz ge¬ tränkten Wicklungskörpers 4 einer Hochspannungsdurchführung vorgesehen, die für Spannungen bis zu 800 kV ausgelegt ist. Der Wicklungskörper 4 ist entsprechend dimensioniert und weist einen rohrförmigen und somit innen hohlen Wickelkern oder einen rohrförmigen Hochspannungsleiter 5 auf, der gestrichelt dargestellt ist. Auf diesen hohlen Hochspannungs- leiter 5 wurden Isolierlagen aus gekrepptem Papier und elektrisch leitfähige Potentialsteuerungseinlagen so gewickelt, dass die Potentialsteuerungseinlagen durch die Isolierlagen voneinander getrennt sind. Der aus gekreppten Papier und Potentialsteuereinlagen bestehende Wicklungskörper 5 wurde anschließend in flüssiges Harz eingetaucht. In der Reaktions¬ kammer 2 soll der so geformte Wicklungskörper 4 ausgehärtet werden . The reaction chamber 3 is provided for receiving a ge with ge ¬ impregnated winding body 4 a high-voltage feedthrough, which is designed for voltages up to 800 kV. The winding body 4 is dimensioned accordingly and has a tubular and thus inside hollow winding core or a tubular high-voltage conductor 5, which is shown in dashed lines. On this hollow high voltage Conductor 5, insulating layers of creped paper and electrically conductive potential control inserts were wound so that the potential control inserts are separated by the insulating layers. The winding body 5 consisting of creped paper and potential control pads was then dipped in liquid resin. In the reaction ¬ chamber 2 of the thus-formed winding body 4 is to be cured.
Wie bereits ausgeführt wurde, ist das Aushärten des Harzes ein exothermer Prozess, bei dem Reaktionswärme frei gesetzt wird. Zum Abführen dieser Reaktionswärme dienen Wärmeaus- tauchmittel 6, die ein Kammerwärmeaustauschaggregat 7 und ein gestrichelt dargestelltes Wickelwärmeaustauschaggregat 8 um¬ fassen, wobei der Hochspannungsleiter 5 Teil des Wickelwärmeaustauschaggregates 8 ist. Das Kammerwärmeaustauschaggregat 7 steht in unmittelbarem Wärmekontakt mit dem Reaktionskammergehäuse 3 und ist Teil eines Wärmekreislaufs, der in der Fi¬ gur nur angedeutet ist. Der Wärmekreislauf verfügt über eine Wärmeaustauschflüssigkeit, welche in dem Wärmekreislauf des Kammerwärmeaustauschaggregats 7 mittels einer nicht gezeigten Umwälzpumpe umgewälzt wird. As already stated, the curing of the resin is an exothermic process in which heat of reaction is released. For discharging this heat of reaction serve Wärmeaus- immersion 6, which include a Kammerwärmeaustauschaggregat 7 and a dashed coil winding heat exchanger unit 8 ¬ , wherein the high-voltage conductor 5 is part of the Wickelwärmeaustauschaggregates 8. The chamber heat exchange unit 7 is in direct thermal contact with the reaction chamber housing 3 and is part of a heat cycle, which is only indicated in the Fi ¬ gur. The heat cycle has a heat exchange liquid, which is circulated in the heat cycle of the chamber heat exchange unit 7 by means of a circulation pump, not shown.
Die Integration des Hochspannungsleiters 5 in das Wickelwär¬ meaustauschaggregat 8 erfolgt mittels eines Einlassstutzens 9. Eine in der Figur ebenfalls nicht dargestellte Pumpe Wi¬ ckelwärmeaustauschaggregats 8 sorgt für die gewünschte Bewe¬ gung eines Wärmeaustauschfluids . Weiterhin sind Heizmittel zum Aufheizen des Wärmeaustauschfluids und ein Kühlaggregat zum Abkühlen in des Wärmeaustauschfluids vorgesehen. The integration of the high-voltage conductor 5 in the Wickelwär ¬ meaustauschaggregat 8 by means of an inlet nozzle 9. A in the figure also not shown pump Wi ¬ ckelwärmeaustauschaggregats 8 provides the desired BEWE ¬ tion of a heat exchange fluid. Furthermore, heating means for heating the heat exchange fluid and a cooling unit for cooling in the heat exchange fluid are provided.
Das Wickelwärmeaustauschaggregat 8 verfügt beispielsweise über ein figürlich nicht dargestelltes stabförmiges Tragge- rüst, an dem eine Kühlschlange festigt ist. Über diese Kühl¬ schlange wird das Wärmeaustauschfluid umgewälzt. Somit ist ein direkter Wärmeübergang zwischen dem Wickelwärmeaustauschaggregat 8 und Wicklungskörper 4 bereitgestellt, da ein Umweg über die Reaktionskammer 3 vermieden ist. The wound heat exchange unit 8 has, for example, a rod-shaped support, not shown in the FIGURE. prepare, where a cooling coil is fastened. The heat exchange fluid is circulated through this cooling coil . Thus, a direct heat transfer between the winding heat exchange unit 8 and winding body 4 is provided because a detour via the reaction chamber 3 is avoided.
Ein hohler Wickelkern des Wicklungskörpers 4 kann auch als Rohrleitung genutzt und in einen Wärmeaustauschkreis des Wi¬ ckelwärmeaustauschaggregats 8 integriert werden, so dass der Wickelkern von einem Wärmeaustauschfluid kontinuierlich durchströmt wird. Der Wickelkern ist beispielsweise der Hoch¬ spannungsleiter 5. Bei einer weiteren Variante des Wickelwärmeaustauschsaggregats 8 wird nicht wie beim Kammerwärmeaus¬ tauschaggregat 7 eine Wärmeaustauschflüssigkeit kontinuier¬ lich umgewälzt. Vielmehr wird, wie durch den Doppelpfeil in der Figur angedeutet, ein Wärmeaustauschfluid eingesetzt, das innerhalb des Wickelwärmeaustauschaggregats 8 beispielsweise durch eine Pumpe hin und her bewegt wird. Hierbei kommt es ebenfalls zu einem Wärmetransport, bei dem die Wärme aus dem Hochspannungsleiter 5 abgeführt wird. A hollow winding core of the winding body 4 can also be used as a pipeline and be integrated into a heat exchange circuit of the Wi ¬ ckelwärmeaustauschaggregats 8, so that the winding core is continuously flowed through by a heat exchange fluid. The winding core, for example, the high voltage conductor ¬ 5. In a further variant of the winding heat exchange unit 8 is a heat exchange fluid is circulated kontinuier ¬ Lich not like the Kammerwärmeaus ¬ exchange aggregate. 7 Rather, as indicated by the double arrow in the figure, a heat exchange fluid is used, which is moved within the winding heat exchange unit 8, for example by a pump back and forth. This also leads to a heat transfer, in which the heat is dissipated from the high-voltage conductor 5.
Aufgrund des erfindungsgemäßen Wärmeaustausches an mehreren Stellen kann auch bei großen Wicklungskörpern 4 die Wärme so zu- bzw. abgeführt werden, dass ein spannungsfreies und lun¬ kerfreies Aushärten in der Harzmasse ermöglicht ist. Due to the heat exchange according to the invention at several points, the heat can be so supplied or removed even with large winding bodies 4, that a stress-free and lun ¬ kerfreies curing in the resin composition is possible.

Claims

Patentansprüche claims
1. Vorrichtung (1) zum Aushärten von Harz, mit dem ein Wicklungskörper (4) einer Hochspannungsdurchführung imprägniert wurde, mit einer zur Aufnahme des Wicklungskörpers (4) einge¬ richteten Reaktionskammer (2), die von einem Reaktionskammergehäuse (3) begrenzt ist, und Wärmeaustauschmitteln (6) zum Kühlen oder Heizen der Reaktionskammer (2), 1. Apparatus (1) for curing resin, with which a winding body (4) of a high-voltage leadthrough was impregnated, with a receptacle for the winding body (4) turned ¬ reaction chamber (2), which is bounded by a reaction chamber housing (3), and heat exchange means (6) for cooling or heating the reaction chamber (2),
d a d u r c h g e k e n n z e i c h n e t, dass d a d u r c h e c e n c i n e s that
die Wärmeaustauschmittel (6) sowohl zum unmittelbaren Wärme¬ austausch mit der Reaktionskammer (2) als auch mit dem Wicklungskörper (4) eingerichtet sind. the heat exchange means (6) both for direct heat exchange ¬ with the reaction chamber (2) and with the winding body (4) are arranged.
2. Vorrichtung (1) nach Anspruch 1, 2. Device (1) according to claim 1,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
die Wärmeaustauschmittel (6) wenigstens ein Wickelwärmeaus¬ tauschaggregat (8) zum unmittelbaren Wärmeaustausch mit dem Wicklungskörper (4) und wenigstens ein Kammerwärmeaustauschaggregat (7) zum unmittelbaren Wärmeaustausch mit dem Reakti- onskammergehäuse (3) aufweisen. the heat exchange means (6) at least one Wickelwärmeaus ¬ exchange unit (8) for direct heat exchange with the winding body (4) and at least one Kammerwärmeaustauschaggregat (7) for direct heat exchange with the reaction onskammergehäuse (3).
3. Vorrichtung (1) nach Anspruch 2, 3. Device (1) according to claim 2,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
wenigstens ein Wickelwärmeraustauschaggregat (8) zum Wärme- austausch mit dem Wickelkern (5) des Wicklungskörpers (4) eingerichtet ist. at least one heat exchanger exchange unit (8) is set up for heat exchange with the winding core (5) of the winding body (4).
4. Vorrichtung (1) nach Anspruch 3, 4. Device (1) according to claim 3,
d a d u r c h g e k e n n z e i c h n e t , dass d a d u r c h e c e n c i n e s that
der Wickelkern (5) hohl ausgebildet ist, wobei das Wickelwär¬ meaustauschaggregat (8) Aufsatzmittel (9) zum Integrieren des hohlen Wickelkerns (5) in das Wickelwärmeaustauschaggregat (8) aufweist, wobei ein fluides Wärmeaustauschmittel zum War metransport dient. the winding core (5) is hollow, wherein the Wickelwär ¬ meaustauschaggregat (8) attachment means (9) for integrating the hollow winding core (5) in the winding heat exchange unit (8), wherein a fluid heat exchange means for war metransport is used.
5. Vorrichtung (1) nach einem der vorhergehenden Ansprüche, d a d u r c h g e k e n n z e i c h n e t , dass 5. Device (1) according to one of the preceding claims, characterized in that a
Regelungsmittel zum Einstellen der Temperatur des Wicklungs¬ körpers (4) in Abhängigkeit einer vorgegebenen Sollwerttempe ratur vorgesehen sind. Control means for adjusting the temperature of the winding ¬ body (4) are provided in dependence on a predetermined setpoint Tempera ture.
EP11708751A 2010-02-24 2011-02-21 Device for hardening resin Withdrawn EP2539906A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201010009428 DE102010009428A1 (en) 2010-02-24 2010-02-24 Primer for curing resin
PCT/EP2011/052513 WO2011104204A1 (en) 2010-02-24 2011-02-21 Device for hardening resin

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EP2539906A1 true EP2539906A1 (en) 2013-01-02

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EP (1) EP2539906A1 (en)
CN (1) CN102792392A (en)
DE (1) DE102010009428A1 (en)
WO (1) WO2011104204A1 (en)

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Publication number Priority date Publication date Assignee Title
JP2606973B2 (en) * 1991-02-22 1997-05-07 日本碍子株式会社 Manufacturing method of capacitor bushing.
JPH07156166A (en) * 1993-12-09 1995-06-20 Toshiba Corp Resin molded product and production thereof
DE102004045537B3 (en) 2004-09-20 2006-03-02 Atlas Elektronik Gmbh Cooling device for heat-creating unit has a heat removal means to take a heat from room by physical or chemical process
EP1889265A1 (en) * 2005-06-07 2008-02-20 Abb Research Ltd. High-voltage bushing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011104204A1 *

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DE102010009428A1 (en) 2011-08-25
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