JP2627874B2 - Oxide superconductor cable - Google Patents
Oxide superconductor cableInfo
- Publication number
- JP2627874B2 JP2627874B2 JP7270753A JP27075395A JP2627874B2 JP 2627874 B2 JP2627874 B2 JP 2627874B2 JP 7270753 A JP7270753 A JP 7270753A JP 27075395 A JP27075395 A JP 27075395A JP 2627874 B2 JP2627874 B2 JP 2627874B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- oxide superconductor
- insulating layer
- superconductor
- cable
- 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 - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、テープ状の酸化
物超電導線材の外周に電気絶縁層、断熱層等を施した超
電導体を有するケーブルに関する。The present invention relates to a cable having a superconductor in which a tape-shaped oxide superconducting wire is provided with an electric insulating layer, a heat insulating layer and the like on the outer periphery.
【０００２】[0002]
【従来の技術】近時単体金属を中心とした超電導現象の
発見に始まり、その後セラミックス（無機）超電導体お
よび有機超電導体を工業材料として、電力応用分野ある
いは磁場を用いる科学技術分野において、実用化研究が
行なわれ、特に次に発表される無機超電導体の新素材に
関する最近の技術情報を契機として、その実用化の開発
が活発に行なわれ、この技術の一環として信頼性の高い
超電導体をコアーにした多岐にわたるケーブル構造の研
究開発が急速に行なわれるようになり、その実用化が望
まれている。2. Description of the Related Art Recently, the discovery of superconductivity phenomena centered on simple metals has been started, and thereafter, ceramics (inorganic) superconductors and organic superconductors have been used as industrial materials in power application fields or in science and technology fields using magnetic fields. Research has been carried out, and in particular, recent technical information on new materials for inorganic superconductors, which will be announced next, has led to active development of practical applications. Research and development of a wide variety of cable structures have been rapidly carried out, and their practical use is desired.
【０００３】[0003]
【発明が解決しようとする課題】この発明はかかる現況
に鑑みて、酸化物系の超電導ユニットを用い優れた絶縁
性と安定した構造のケーブルを提供するものであって、
屈曲等によって破損変形のおそれがなく、特性の低下す
るおそれのない信頼度の高い超電導ケーブルを提供する
ことを目的とする。SUMMARY OF THE INVENTION In view of the above situation, the present invention provides a cable having an excellent insulating property and a stable structure using an oxide superconducting unit.
It is an object of the present invention to provide a highly reliable superconducting cable which is free from the possibility of breakage and deformation due to bending or the like, and of not deteriorating characteristics.
【０００４】[0004]
【課題を解決するための手段】本発明は上記の目的を達
成するためになされたもので、超電導ユニットとして
は、テープ状の銅箔の両面に酸化物超電導体の薄膜を設
け、その表面に絶縁層を設けたものを用い、その任意の
数を重ねて金属管内に収納して、超電導ユニット収納金
属管とし、その複数条を支持体を中心として、これを囲
むように配置し、その外側にはリング状の断熱層と、コ
ルゲートメタルシースとを順次設けたケーブル構造で、
前記超電導ユニットを収納した金属管内に冷媒を流通さ
せるようにしたものである。DISCLOSURE OF THE INVENTION The present invention has been made to achieve the above object, and as a superconducting unit, a thin film of an oxide superconductor is provided on both sides of a tape-shaped copper foil, and the surface thereof is provided. Using an insulating layer provided, an arbitrary number of them are stacked and housed in a metal tube to form a superconducting unit housing metal tube. Has a cable structure in which a ring-shaped heat insulating layer and a corrugated metal sheath are sequentially provided,
The refrigerant is circulated in a metal tube containing the superconducting unit.
【０００５】[0005]
【発明の実施の形態】本発明の実施形態を以下に説明す
る。図１は本発明で用いる酸化物超電導体の基本的な構
成を示す断面図で、図１（ａ）において、１はＣｕ等で
形成されたテープ状の箔１ａの両面に酸化物超電導体１
ｂを焼成等によって固着した超電導体テープ、２はこの
超電導体テープ１の周囲に形成するようにした４ふっ化
エチレン樹脂、ポリイミド、窒化ガラス、石英系ガラス
等を素材にした絶縁層で、３は絶縁被覆をした超電導体
を示す。図１（ｂ）は上記の超電導体テープ１に中間絶
縁層２ａを介装させ、複数の層状に配列して周囲を絶縁
層２で覆うようにしてユニット化したもので図１（ａ）
と同一部分には同一符号が付されている。Embodiments of the present invention will be described below. FIG. 1 is a sectional view showing a basic structure of an oxide superconductor used in the present invention. In FIG. 1 (a), reference numeral 1 denotes an oxide superconductor 1 on both sides of a tape-like foil 1a formed of Cu or the like.
b is a superconducting tape to which b is fixed by baking or the like; 2 is an insulating layer made of a material such as ethylene fluoride resin, polyimide, nitride glass, quartz glass or the like formed around the superconducting tape 1; Indicates a superconductor with an insulating coating. FIG. 1 (b) shows a unit formed by interposing an intermediate insulating layer 2a on the above-described superconductor tape 1, arranging the layers in a plurality of layers, and covering the periphery with an insulating layer 2.
The same reference numerals are given to the same parts.
【０００６】図２（ａ）は、たとえば上記図１（ａ）の
ような絶縁被覆した超電導体３のそれぞれの間に支持体
１６を介して空隙４ａを設けて複数本を配列し、これら
の空隙４ａを含めた空間部４を方形に形成し、これにた
とえば液体窒素のような冷媒を流通させるように形成
し、その外周を円形の断熱材５によって覆うようにした
ものである。図２（ｂ）は、上記図２（ａ）と基本構成
を同じくして、空間部４の外周を円形に断熱材によって
覆うように形成し、これに冷媒を流通させるようにした
ものである。In FIG. 2A, for example, a plurality of superconductors 3 having insulating coatings as shown in FIG. A space 4 including a space 4a is formed in a rectangular shape, a coolant such as liquid nitrogen is allowed to flow therethrough, and the outer periphery thereof is covered with a circular heat insulating material 5. FIG. 2 (b) has the same basic configuration as that of FIG. 2 (a) described above, and is formed so that the outer periphery of the space portion 4 is circularly covered with a heat insulating material, and the refrigerant is circulated through this. .
【０００７】[0007]
【具体例】図３は厚さ０．５ｍｍ、幅１０ｍｍの圧延銅
箔２０の両面に、ＹＢａＣｕＯｘ系で厚さ３μｍの酸化
物単結晶超電導体を形成した超電導テープ２１の両側よ
り厚さ０．５ｍｍの四フッ化エチレン樹脂シート２２を
圧着した超電導体素線２３の断面を示し、図４はこの超
電導体素線２３を１０層重ね合わせ、その周囲をＣｕパ
イプ２９で蔽って超電導体ユニット２５に構成し、この
超電導体ユニット２５を支持体２６の周囲に６本配設
し、その外周部に断熱層２７を設け、さらにその外周を
コルゲートメタルシース２８によって外装して、Ｃｕパ
イプ２９内に液体窒素を流通させるようにしたものであ
る。この図４の構成の酸化物超電導体ケーブルに液体窒
素を流通させて得た導電電流容量は超電導体ユニット２
５あたり３００Ａであり、臨界電流密度Ｊｃは上述のよ
うに電導体の酸化物が単結晶であるので、５００００Ａ
／ｃｍ2 であった。FIG. 3 shows a rolled copper foil 20 having a thickness of 0.5 mm and a width of 10 mm, and YBaCuOx-based superconducting tape 21 having a 3 μm-thick oxide single-crystal superconductor formed on both sides. FIG. 4 shows a cross section of a superconducting element wire 23 to which a 5 mm tetrafluoroethylene resin sheet 22 is crimped. FIG. 25, six superconductor units 25 are provided around a support 26, a heat insulating layer 27 is provided on the outer periphery thereof, and the outer periphery is further covered with a corrugated metal sheath 28, and a Cu pipe 29 is provided. Liquid nitrogen is allowed to flow through the device. The conductive current capacity obtained by flowing liquid nitrogen through the oxide superconductor cable having the configuration shown in FIG.
The critical current density Jc is 50,000 A since the oxide of the conductor is a single crystal as described above.
/ Cm 2 .
【０００８】[0008]
【発明の効果】以上説明したように、この発明はテープ
状の銅箔に酸化物超電導体の薄膜を形成させ、この薄膜
に絶縁層を施したものを超電導体素線とし、その複数箇
を金属パイプ中に入れてその内部に冷媒を通して超電導
体を冷却し得るようにし、かくしたものを複数条支持体
の周囲にバンランス良く配置して（必要に応じて撚り合
わせ）、しかも、これらの外周部にはリング状に断熱層
が形成されているので、前記した超電導体が各層ごとに
絶縁されることによって超電導体の耐久性を向上させ、
かつ、中心に支持体をおきその周囲に均等にケーブルの
超電導ユニットを収納した金属管が配置されているの
で、屈曲によってはケーブルが破損し難く、比較的軽量
で安定したケーブル特性を示し得る等の効果を奏するこ
とができる。As described above, according to the present invention, a thin film of an oxide superconductor is formed on a tape-shaped copper foil, and an insulating layer is formed on the thin film to form a superconductor element wire. The superconductor is cooled by passing it into a metal pipe to allow the superconductor to cool through the inside of the pipe, and the superconductor is arranged in a well-balanced manner around the plurality of support members (twisted as necessary). Since the portion is formed with a heat insulating layer in a ring shape, the above-described superconductor is insulated for each layer to improve the durability of the superconductor,
In addition, since the metal tube that houses the superconducting unit of the cable is placed around the support body at the center and the cable superconducting unit is evenly distributed, the cable is hardly damaged depending on bending, and it can show relatively lightweight and stable cable characteristics etc. The effect can be achieved.
【図１】本発明で用いられる酸化物超電導体の基本的な
構成の断面。FIG. 1 is a cross section of a basic structure of an oxide superconductor used in the present invention.
【図２】本発明で用いられる酸化物超電導体の基本的な
構成の断面。FIG. 2 is a cross section of a basic configuration of an oxide superconductor used in the present invention.
【図３】本発明の具体例の酸化物超電導体の断面図FIG. 3 is a sectional view of an oxide superconductor according to an embodiment of the present invention.
【図４】本発明の超電導ケーブルの構造例を示す断面図FIG. 4 is a cross-sectional view showing a structural example of a superconducting cable of the present invention.
１ａ 箔 １ｂ 酸化物超電導体 ２ 絶縁層 ２０ 圧延銅箔 ２１ 超電導テープ ２２ 四フッ化エチレン樹脂シート ２３ 超電導体素線 ２５ 超電導体ユニット ２６ 支持体 ２７ 断熱層 ２８ コルゲートメタルシース ２９ Ｃｕパイプ Reference Signs List 1a foil 1b oxide superconductor 2 insulating layer 20 rolled copper foil 21 superconducting tape 22 tetrafluoroethylene resin sheet 23 superconducting element wire 25 superconducting unit 26 support 27 heat insulating layer 28 corrugated metal sheath 29 Cu pipe
───────────────────────────────────────────────────── フロントページの続き (72)発明者 福田 長 千葉県佐倉市六崎1440番地 株式会社フ ジラク佐倉工場内 (56)参考文献 特開 昭54−148286（ＪＰ，Ａ) 特開 昭64−615（ＪＰ，Ａ) 特開 昭62−264508（ＪＰ，Ａ) 特開 昭59−56311（ＪＰ，Ａ) ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Naga Fukuda 1440 Mutsuzaki, Sakura City, Chiba Prefecture Fujikura Sakura Factory Co., Ltd. (56) References JP-A-54-148286 (JP, A) JP-A-64-615 (JP, A) JP-A-62-264508 (JP, A) JP-A-59-56311 (JP, A)
Claims (1)
された複数条の超電導ユニットを収納した金属管と、そ
の外周部に設けられたリング状の断熱層と、その外側の
コルゲートメタルシースとからなり、前記超電導ユニッ
トはテープ状の銅箔の両面に酸化物超電導体の薄膜とそ
の表面の絶縁層とを順次設けた構成で、かつ前記超電導
ユニットを収納した金属管内には冷媒を流通させるよう
にしたことを特徴とする酸化物超電導体ケーブル1. A center support, a metal tube containing a plurality of superconducting units arranged so as to surround the center support, a ring-shaped heat insulating layer provided on an outer peripheral portion thereof, and a corrugated metal on the outside thereof. The superconducting unit comprises a sheath, a thin film of an oxide superconductor and an insulating layer on the surface are sequentially provided on both surfaces of a tape-shaped copper foil, and a refrigerant is contained in a metal tube containing the superconducting unit. Oxide superconductor cable characterized by being distributed
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7270753A JP2627874B2 (en) | 1995-08-30 | 1995-08-30 | Oxide superconductor cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7270753A JP2627874B2 (en) | 1995-08-30 | 1995-08-30 | Oxide superconductor cable |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62157553A Division JP2530165B2 (en) | 1987-06-26 | 1987-06-26 | Oxide superconductor cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08212844A JPH08212844A (en) | 1996-08-20 |
| JP2627874B2 true JP2627874B2 (en) | 1997-07-09 |
Family
ID=17490509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7270753A Expired - Fee Related JP2627874B2 (en) | 1995-08-30 | 1995-08-30 | Oxide superconductor cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2627874B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4517879B2 (en) * | 2004-10-15 | 2010-08-04 | 住友電気工業株式会社 | Superconducting cable |
| CA2581348A1 (en) | 2006-04-10 | 2007-10-10 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| DE102011107313A1 (en) * | 2011-07-06 | 2013-01-10 | Karlsruher Institut für Technologie | Insulated high-temperature superconductor tape and method for its production |
-
1995
- 1995-08-30 JP JP7270753A patent/JP2627874B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH08212844A (en) | 1996-08-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |