JPS6237487B2 - - Google Patents
Info
- Publication number
- JPS6237487B2 JPS6237487B2 JP13889981A JP13889981A JPS6237487B2 JP S6237487 B2 JPS6237487 B2 JP S6237487B2 JP 13889981 A JP13889981 A JP 13889981A JP 13889981 A JP13889981 A JP 13889981A JP S6237487 B2 JPS6237487 B2 JP S6237487B2
- Authority
- JP
- Japan
- Prior art keywords
- induction heating
- cable
- heat
- resistant
- cable conductor
- 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
Links
- 238000010438 heat treatment Methods 0.000 claims description 28
- 239000004020 conductor Substances 0.000 claims description 24
- 230000006698 induction Effects 0.000 claims description 23
- 238000004132 cross linking Methods 0.000 claims description 14
- 230000001681 protective effect Effects 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 7
- 239000012212 insulator Substances 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims description 4
- 239000003302 ferromagnetic material Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 claims 2
- 230000005291 magnetic effect Effects 0.000 description 9
- 238000009413 insulation Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Processes Specially Adapted For Manufacturing Cables (AREA)
Description
【発明の詳細な説明】
本発明は、ケーブル導体誘導加熱装置に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cable conductor induction heating device.
架橋化ポリエチレン絶縁電力ケーブルで代表さ
れるプラスチツク絶縁電力ケーブルの高電圧化に
より、そのサイズは益々大型化される傾向にある
が、これに伴ないその絶縁層架橋化処理には益々
時間を要するようになつている。 As plastic insulated power cables, typified by crosslinked polyethylene insulated power cables, increase in voltage, their sizes tend to increase, but as a result, crosslinking of the insulation layer takes more and more time. It's getting old.
このことに鑑がみ、従来の外部加熱による架橋
化処理に加え、例えばケーブル導体に誘導加熱を
起こさせてこれを内部からも加熱し、もつて架橋
化効率を高めようと云う手段が提案されている。 In view of this, in addition to the conventional cross-linking treatment by external heating, methods have been proposed to increase the cross-linking efficiency by, for example, causing induction heating in the cable conductor and heating it from within. ing.
しかるに、この内部加熱手段に関しては、未だ
適当なものは実用化されておらず、現在研究者の
間でその開発が進められている状況である。 However, no suitable internal heating means has yet been put into practical use, and researchers are currently working on its development.
本発明は、以上のような実状に鑑みて為された
ものであつて、その目的は、プラスチツク絶縁電
力ケーブルの架橋化処理に当つて内部加熱を起こ
させるのに有用なケーブル導体誘導加熱装置を提
供することにある。 The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a cable conductor induction heating device useful for causing internal heating during crosslinking treatment of plastic insulated power cables. It is about providing.
次に、添付の図面を参照しながら、本発明ケー
ブル導体誘導加熱装置の一実施例を詳細に説明す
ると、図において、１はケーブル被覆架橋処理
筒、２は該架橋処理筒１内を所定の方向へ所定の
速度で走行する架橋化処理すべきポリエチレン絶
縁電力ケーブルである。 Next, an embodiment of the cable conductor induction heating device of the present invention will be described in detail with reference to the attached drawings. A polyethylene insulated power cable to be crosslinked running at a predetermined speed in a direction.
３は上記架橋処理筒１の途中、好ましくは上記
電力ケーブル２の入力側付近において、当該架橋
処理筒１に連設して設けられた、磁器、ガラスな
どのセラミツクを材料とする耐熱性絶縁筒であ
る。特に、図示しなかつたが、耐熱性絶縁筒３に
は、その両端に任意取付金具が設けられていて、
しかして、当該耐熱性絶縁筒３は、この取付金具
を介して架橋処理筒１に対してボルト・ナツトに
より固定される。また、この時、耐熱性絶縁筒３
を鉄製の架橋処理筒１の熱伸縮に追随させるため
に、これら両者間にベローなどの易伸縮部材を設
けると良い。 Reference numeral 3 denotes a heat-resistant insulating tube made of ceramic such as porcelain or glass, which is provided in the middle of the crosslinked tube 1, preferably near the input side of the power cable 2, and is connected to the crosslinked tube 1. It is. In particular, although not shown, the heat-resistant insulating cylinder 3 is provided with optional mounting fittings at both ends.
Thus, the heat-resistant insulating cylinder 3 is fixed to the crosslinking cylinder 1 with bolts and nuts via this fitting. Also, at this time, the heat-resistant insulating cylinder 3
In order to follow the thermal expansion and contraction of the iron crosslinking tube 1, it is preferable to provide an easily expandable member such as a bellows between the two.
架橋処理筒１と耐熱性絶縁筒３間には、パツキ
ングなどを設けることで、これら架橋処理筒１及
び耐熱性絶縁筒３内の熱媒４の漏れを防ぐ必要が
ある。 It is necessary to provide packing or the like between the cross-linking tube 1 and the heat-resistant insulating tube 3 to prevent the heat medium 4 from leaking inside the cross-linking tube 1 and the heat-resistant insulating tube 3.
５は上記耐熱性絶縁筒３の周上に設けられたケ
ーブル導体誘導加熱用コイルにして、特に図示し
なかつたが、当該コイル５はその端部を電源へ接
続されている。しかして、上記コイル５へ任意の
電流を流し、もつて、前記電力ケーブル２の導体
６に誘導加熱を起こさせる。 Reference numeral 5 denotes a cable conductor induction heating coil provided on the circumference of the heat-resistant insulating cylinder 3, and although not particularly shown, the end of the coil 5 is connected to a power source. An arbitrary current is then passed through the coil 5, thereby causing the conductor 6 of the power cable 2 to undergo induction heating.
７は上記ケーブル導体誘導加熱用コイル５の周
上にセラミツクの如き耐熱性絶縁体８を介して設
けられた強磁性体による磁気通路にして、これは
具体的にはパーマロイ、フエライト、ダストコア
などを材料とする鉄心によつて構成される。 Reference numeral 7 denotes a magnetic path made of a ferromagnetic material provided on the circumference of the cable conductor induction heating coil 5 via a heat-resistant insulator 8 such as ceramic. It is composed of an iron core.
９は上記磁気通路７を冷却するための冷却装置
である。 Reference numeral 9 denotes a cooling device for cooling the magnetic path 7.
因に、ここで上記磁気通路７と冷却装置９との
間の熱抵抗を小さくし、もつて磁気通路７に対す
る冷却効率を高めるために、当該磁気通路７を熱
抵抗の小さい樹脂で覆うこともある。 Incidentally, in order to reduce the thermal resistance between the magnetic path 7 and the cooling device 9 and thereby increase the cooling efficiency for the magnetic path 7, the magnetic path 7 may be covered with a resin having low thermal resistance. be.
１０は以上の各部材を密封するようにして設け
られた鉄、ステンレス製の耐圧性保護容器にし
て、これはその両端をケーブル被覆架橋処理筒１
の端部に設けられたフランジ部１１へボルト・ナ
ツト１２で取り付けることで構成される。 Reference numeral 10 denotes a pressure-resistant protective container made of iron or stainless steel, which is provided to seal each of the above members, and this has both ends covered with a cable-coated cross-linked tube 1.
It is constructed by attaching it to a flange portion 11 provided at the end of the frame with bolts and nuts 12.
１３は上記耐熱性絶縁筒３と保護容器１０とで
囲まれた間隙内に充填された加圧媒体にして、こ
れにはシリコン油のような絶縁物を用いるのが良
い。 Reference numeral 13 denotes a pressurized medium filled in the gap between the heat-resistant insulating cylinder 3 and the protective container 10, and preferably an insulating material such as silicone oil is used for this medium.
１４はケーブル被覆架橋処理筒１と上記保護容
器１０とを連結するようにして設けられた連結パ
イプ、１５は該連結パイプ１４の途中に設けられ
た気・液遮断兼圧平衡調整装置である。気・液遮
断兼圧力平衡調整装置１５は、袋状ベロー１６と
これを覆う耐圧容器１７とからなり、そして図示
のようにケーブル被覆架橋処理筒１側へつながる
連結パイプ１４を袋状ベロー１６へ、また保護容
器１０側へつながる連結パイプ１４を耐圧容器１
７へそれぞれ連結せしめられることで構成されて
いる。 Reference numeral 14 designates a connecting pipe provided to connect the cable-coated crosslinking treatment tube 1 and the protective container 10, and 15 designates a gas/liquid blocking/pressure balance adjusting device provided in the middle of the connecting pipe 14. The gas/liquid isolation and pressure balance adjustment device 15 consists of a bag-shaped bellows 16 and a pressure-resistant container 17 that covers it, and as shown in the figure, connects a connecting pipe 14 connected to the cable covering cross-linking tube 1 side to the bag-shaped bellows 16. In addition, the connecting pipe 14 connected to the protective container 10 side is connected to the pressure container 1.
7, respectively.
なお、上記気・液遮断兼圧力平衡調整装置１５
としては、ベロー１６に代えてピストンあるいは
シリンダを用いて構成することも可能である。 In addition, the above-mentioned gas/liquid cutoff and pressure balance adjustment device 15
However, it is also possible to use a piston or a cylinder instead of the bellows 16.
また、シリコン油１３については、絶縁性能を
確保する意味で定期的に交換するのが良い。 Furthermore, the silicone oil 13 is preferably replaced periodically to ensure insulation performance.
前記磁気通路７は、ケーブル導体誘導加熱用コ
イル５より発せられる磁束が保護容器１０に及ぶ
のを防止するためのものである。 The magnetic path 7 is for preventing the magnetic flux emitted from the cable conductor induction heating coil 5 from reaching the protective case 10.
なお必要に応じて架橋処理筒１のフランジ１１
及び保護容器１０の周上に冷却装置を取り付ける
こともある。 Note that the flange 11 of the cross-linked cylinder 1 may be
A cooling device may also be attached to the circumference of the protective container 10.
絶縁体８の外側には静電遮蔽体を取り付けるの
も良い。そして、この時はこの遮蔽体が閉ループ
を作らないよう縁切り部を設けるのが良い。 It is also good to attach an electrostatic shield to the outside of the insulator 8. At this time, it is preferable to provide an edge cut portion so that the shield does not form a closed loop.
さて、以上のようにして構成されてなる本実施
例ケーブル導体誘導加熱装置によれば、ケーブル
被覆架橋処理筒１に連結して設けられた耐熱性絶
縁筒３を支持台として、その周上にケーブル導体
誘導加熱用コイル５を設けるものであることか
ら、当該コイル５を所定の位置に安定した状態で
固定することができる。 Now, according to the cable conductor induction heating device of this embodiment configured as described above, the heat-resistant insulating tube 3 connected to the cable coating cross-linking tube 1 is used as a support base, and the Since the cable conductor induction heating coil 5 is provided, the coil 5 can be stably fixed at a predetermined position.
しかも、上記ケーブル導体誘導加熱用コイル５
の周上には、常時耐熱性絶縁筒３内の熱媒４と同
圧力となるように調整された加圧媒体１３が充填
されてなることから、当該耐熱性絶縁筒３には無
理な圧力が作用する恐れはなく、従つて機械的に
安定した状態を確保できる。 Moreover, the cable conductor induction heating coil 5
The circumference of the heat-resistant insulating cylinder 3 is filled with a pressurized medium 13 that is adjusted to have the same pressure as the heating medium 4 in the heat-resistant insulating cylinder 3 at all times. There is no fear that this will occur, and therefore a mechanically stable state can be ensured.
また、ケーブル導体誘導加熱用コイル５の周上
には、耐熱性絶縁体８を介して強磁性体による磁
気通路７及び冷却装置９が設けられてなることか
ら、上記コイル５より発せられる磁束が保護容器
１０に及ぶ恐れはなく、加えてコイル５付近に熱
がこもる恐れもない。このため、保護容器１０に
あつては、これを上記コイル５の周上に何も介さ
ないで設けた場合に比較して大幅に小さくし得
る。 Moreover, since a magnetic path 7 and a cooling device 9 made of ferromagnetic material are provided on the circumference of the cable conductor induction heating coil 5 via a heat-resistant insulator 8, the magnetic flux emitted from the coil 5 is There is no risk of heat reaching the protective container 10, and in addition, there is no risk of heat being trapped near the coil 5. Therefore, the protective container 10 can be made much smaller than when it is provided around the coil 5 without intervening anything.
このように本発明ケーブル導体誘導加熱装置
は、機械的に安定した構造を提供し、もつてケー
ブル導体に対する誘導加熱を安定して且つ確実に
行なえ得るものを提供するものであり、その実用
的価値はきわめて大である。 As described above, the cable conductor induction heating device of the present invention provides a mechanically stable structure and can stably and reliably perform induction heating on cable conductors, and has its practical value. is extremely large.
図は、本発明ケーブル導体誘導加熱装置の一実
施例説明図である。
１：ケーブル被覆架橋処理筒、２：ポリエチレ
ン絶縁電力ケーブル、３：耐熱性絶縁筒、４：熱
媒、５：ケーブル導体誘導加熱用コイル、６：導
体、７：磁器通路、８：耐熱性絶縁体、９：冷却
装置、１０：耐圧性保護容器、１１：フランジ
部、１２：ボルト・ナツト、１３：加圧媒体、１
４：連結パイプ、１５：気・液遮断兼圧力平調整
装置、１６：袋状ベロー、１７：耐圧容器。
The figure is an explanatory diagram of an embodiment of the cable conductor induction heating device of the present invention. 1: Cable coated crosslinked tube, 2: Polyethylene insulated power cable, 3: Heat resistant insulated tube, 4: Heat medium, 5: Cable conductor induction heating coil, 6: Conductor, 7: Porcelain path, 8: Heat resistant insulation Body, 9: Cooling device, 10: Pressure-resistant protective container, 11: Flange portion, 12: Bolts and nuts, 13: Pressurized medium, 1
4: Connecting pipe, 15: Air/liquid isolation and pressure leveling device, 16: Bag-shaped bellows, 17: Pressure-resistant container.
Claims (1)
れた耐熱性絶縁筒３と、該絶縁筒３の周上に設け
られたケーブル導体誘導加熱用コイル５と、該ケ
ーブル導体誘導加熱用コイル５上に、耐熱性絶縁
体８及び強磁性体７を介して設けられた冷却装置
９と、それ自身の両端をケーブル被覆架橋処理筒
１の端部に設けられたフランジ部１１へ密着固定
することで構成され、上記冷却装置９を密封する
ようにして当該冷却装置９の周上に設けられた耐
圧性保護容器１０と、上記耐熱性絶縁筒３と耐圧
性保護容器１０とで囲まれた間隙内に充填された
加圧媒体１３と、上記ケーブル被覆架橋処理筒１
と耐圧性保護容器１０とをつなぐようにして設け
られた連結パイプ１４と、該連結パイプ１４の途
中に介在されて、当該部分において上記ケーブル
被覆架橋処理筒１側と保護容器１０側とを気・液
遮断し、且つこれら両者の内圧が平衡となるよう
に調整する気・液遮断兼圧力平衡調整装置１５と
よりなることを特徴とするケーブル導体誘導加熱
装置。 ２ 耐熱性絶縁筒３の材料として、磁器・ガラス
などのセラミツクを用いた特許請求の範囲第１項
記載のケーブル導体誘導加熱装置。 ３ 耐圧性保護容器１０の材料として、鉄あるい
はステンレスを用いた特許請求の範囲第１項記載
のケーブル導体誘導加熱装置。 ４ 気・液遮断兼圧力平衡調整装置１５として、
気・液遮断兼圧力平衡調整用ベロー１６と該ベロ
ー１６を覆うようにして設けられた耐圧容器１７
とよりなるものを用いた特許請求の範囲第１項記
載のケーブル導体誘導加熱装置。 ５ 耐熱性絶縁体８の材料として、セラミツクを
用いた特許請求の範囲第１項記載のケーブル導体
誘導加熱装置。[Claims] 1. A heat-resistant insulating tube 3 connected to the cable covering crosslinking tube 1, a cable conductor induction heating coil 5 provided on the circumference of the insulating tube 3, and the cable conductor. A cooling device 9 is provided on the induction heating coil 5 via a heat-resistant insulator 8 and a ferromagnetic material 7, and a flange portion 11 is provided at both ends of the cooling device 9 at the end of the cable-coated crosslinking tube 1. A pressure-resistant protective container 10 is provided on the circumference of the cooling device 9 so as to seal the cooling device 9, and the heat-resistant insulating cylinder 3 and the pressure-resistant protective container 10 are The pressurized medium 13 filled in the gap surrounded by the cable covering crosslinking tube 1
A connecting pipe 14 is provided to connect the pressure-resistant protective container 10 and the connecting pipe 14 is interposed in the middle of the connecting pipe 14 to connect the cable coating cross-linked tube 1 side and the protective container 10 side at that part. - A cable conductor induction heating device characterized by comprising a gas/liquid shutoff/pressure balance adjustment device 15 that shuts off liquid and adjusts the internal pressures of both to be balanced. 2. The cable conductor induction heating device according to claim 1, wherein the heat-resistant insulating cylinder 3 is made of ceramic such as porcelain or glass. 3. The cable conductor induction heating device according to claim 1, wherein iron or stainless steel is used as the material of the pressure-resistant protective container 10. 4 As a gas/liquid cutoff and pressure balance adjustment device 15,
A bellows 16 for gas/liquid isolation and pressure balance adjustment, and a pressure vessel 17 provided to cover the bellows 16.
A cable conductor induction heating device according to claim 1, which uses the following. 5. The cable conductor induction heating device according to claim 1, wherein ceramic is used as the material of the heat-resistant insulator 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13889981A JPS5840709A (en) | 1981-09-03 | 1981-09-03 | Cable conductor induction heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13889981A JPS5840709A (en) | 1981-09-03 | 1981-09-03 | Cable conductor induction heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5840709A JPS5840709A (en) | 1983-03-09 |
| JPS6237487B2 true JPS6237487B2 (en) | 1987-08-12 |
Family
ID=15232718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13889981A Granted JPS5840709A (en) | 1981-09-03 | 1981-09-03 | Cable conductor induction heating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840709A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008526518A (en) * | 2005-01-10 | 2008-07-24 | メルフェ エス．アー． | Conductor heating apparatus and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0174582U (en) * | 1987-11-07 | 1989-05-19 | ||
| US7910045B2 (en) | 2005-01-10 | 2011-03-22 | Maillefer S.A. | Arrangement and method for heating an electrical conductor |
-
1981
- 1981-09-03 JP JP13889981A patent/JPS5840709A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008526518A (en) * | 2005-01-10 | 2008-07-24 | メルフェ エス．アー． | Conductor heating apparatus and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5840709A (en) | 1983-03-09 |
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