JPS6112647Y2 - - Google Patents
Info
- Publication number
- JPS6112647Y2 JPS6112647Y2 JP1980047048U JP4704880U JPS6112647Y2 JP S6112647 Y2 JPS6112647 Y2 JP S6112647Y2 JP 1980047048 U JP1980047048 U JP 1980047048U JP 4704880 U JP4704880 U JP 4704880U JP S6112647 Y2 JPS6112647 Y2 JP S6112647Y2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- pancake
- helium container
- superconducting magnet
- stacked
- 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
- 235000012771 pancakes Nutrition 0.000 claims description 30
- 229910052734 helium Inorganic materials 0.000 claims description 21
- 239000001307 helium Substances 0.000 claims description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 21
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 230000004927 fusion Effects 0.000 description 5
- 238000010791 quenching Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002085 persistent effect Effects 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910020012 Nb—Ti Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Description
【考案の詳細な説明】
本考案は超電導磁石に係り、特に該融合装置、
あるいは磁気エネルギー貯蔵装置に使用するに好
適な超電導磁石に関する。[Detailed Description of the Invention] The present invention relates to a superconducting magnet, in particular to the fusion device,
The present invention also relates to a superconducting magnet suitable for use in a magnetic energy storage device.
一般に、Nb，Nb−Ti，Nb3Sn，Nb3Geなどの
金属、合金、金属間化合物の臨界温度以下に保持
することによつて、その電気抵抗が零になる、い
わゆる超電導現象については良く知られている。
この現象を利用した各種の超電導装置が研究開
発、または実用化されている。超電導磁石は常電
導磁石に比べ、小形で高磁界を発生することが可
能であるため、該融合装置のトロイダルコイル、
ポロイダルコイルに応用することが各国で進めら
れている。また、永久電流スイツチで超電導磁石
を短絡することにより、殆んど電流の減衰が無い
いわゆる永久電流モードとすることができるか
ら、磁気エネルギー貯蔵装置や磁気浮上列車への
応用が期待されている。 In general, the so-called superconducting phenomenon in which the electrical resistance of metals, alloys, and intermetallic compounds such as Nb, Nb-Ti, Nb 3 Sn, and Nb 3 Ge becomes zero by keeping them below the critical temperature is well known. Are known.
Various superconducting devices utilizing this phenomenon have been researched, developed, or put into practical use. Superconducting magnets are smaller than normal conducting magnets and can generate a high magnetic field, so the toroidal coil of the fusion device,
Applications to poloidal coils are being promoted in various countries. Furthermore, by short-circuiting the superconducting magnet with a persistent current switch, it is possible to create a so-called persistent current mode in which there is almost no current attenuation, so it is expected to be applied to magnetic energy storage devices and magnetically levitated trains.
超電導磁石の概略構造を第１図、及び第２図に
示す。該図の如く、超電導磁石は複数回巻回され
た超電導線より構成されるパンケーキコイル（ダ
ブルパンケーキコイルもある）５と、該パンケー
キコイル５を軸方向に複数個積層し、その各々の
間の絶縁と液体ヘリウムのクーリングチヤンネル
の役割を持つパイ間スペーサ７と、パンケーキコ
イル５とパン間スペーサ７を積層し固定するため
のコイル締付板３、および締付通しボルト４と、
積層固定されたパンケーキコイル５、および冷媒
を収納するヘリウム容器１より成り立つている。
尚、２は対地絶縁物、６は層間絶縁物である。と
ころで、近年、超電導磁石は高磁界、大形化の要
求が強くなつている。上記した従来の超電導磁石
は、積層されたパンケーキコイル５、及びパイ間
スペーサ７がコイル締付板３で挟され締付通しボ
ルト４動かないように固定されている。とそころ
が、超電導磁石が高磁界、大形化すると励磁時に
生ずる強大な電磁力、又は極低温に冷却すること
による材料の熱収縮のために、ヘリウム容器１と
パンケーキコイル５間に隙間が生じることにな
る。ヘリウム容器１とパンケーキコイル５間に隙
間が生じた状態の超電導磁石に転倒力がかかるよ
うな磁界が印加されれば、パンケーキコイル５が
急激に変位することにより、超電導磁石がクエン
チするという問題が生じる。 The schematic structure of a superconducting magnet is shown in FIGS. 1 and 2. As shown in the figure, the superconducting magnet includes a pancake coil (also a double pancake coil) 5 made of superconducting wire wound multiple times, and a plurality of pancake coils 5 stacked in the axial direction, each of which an inter-pi spacer 7 that serves as an insulation between the pancake coils and a cooling channel for liquid helium, a coil tightening plate 3 for stacking and fixing the pancake coil 5 and the inter-pan spacer 7, and a tightening through bolt 4;
It consists of a stacked and fixed pancake coil 5 and a helium container 1 that houses a refrigerant.
Note that 2 is a ground insulator, and 6 is an interlayer insulator. Incidentally, in recent years, there has been a strong demand for higher magnetic fields and larger sizes for superconducting magnets. In the above-mentioned conventional superconducting magnet, the stacked pancake coils 5 and the spacer 7 between the coils are sandwiched between the coil clamping plates 3 and the clamping bolts 4 are fixed so as not to move. However, due to the high magnetic field of the superconducting magnet, the strong electromagnetic force generated during excitation when the magnet is large, or the thermal contraction of the material caused by cooling it to an extremely low temperature, there is a gap between the helium container 1 and the pancake coil 5. will occur. If a magnetic field that causes a toppling force is applied to a superconducting magnet with a gap between the helium container 1 and the pancake coil 5, the pancake coil 5 will suddenly displace, causing the superconducting magnet to quench. A problem arises.
本考案は上述の点に鑑み成されたもので、その
目的とするところは、ヘリウム容器とパンケーキ
コイル間に隙間が生じることがないようにし、ク
エンチが生じることのないようにした超電導磁石
を提供するにある。 The present invention was developed in view of the above points, and its purpose is to create a superconducting magnet that does not create a gap between the helium container and the pancake coil and prevents quenching. It is on offer.
本考案はヘリウム容器に、積層されたパンケー
キコイルに圧縮力を加えるコイル締付機構を設け
ることにより、所期の目的を達成するようになし
たものである。即ち、コイル締付機構によりコイ
ル締付板、および締付通しボルトの外にヘリウム
容器から積層パンケーキに両側面から圧縮力を加
え、電磁力、及び熱収縮によるヘリウム容器とパ
ンケーキ間に隙間が生じないようにしたものであ
る。 The present invention achieves the intended purpose by providing a helium container with a coil tightening mechanism that applies compressive force to the stacked pancake coils. In other words, the coil tightening mechanism applies compressive force from both sides of the helium container to the laminated pancakes outside of the coil tightening plate and tightening bolt, and the gap between the helium container and the pancakes due to electromagnetic force and thermal contraction is reduced. This is to prevent this from occurring.
以下、図面の実施例に基づいて本考案を説明す
る。尚、符号は従来と同一のものは同符号を使用
する。 Hereinafter, the present invention will be explained based on the embodiments shown in the drawings. Incidentally, the same reference numerals are used for the same parts as in the past.
第３図に本考案の一実施例を示す。本実施例で
の超電導磁石の概略構成は従来のものとほとんど
同様のため、ここでの説明は省略する。 FIG. 3 shows an embodiment of the present invention. The schematic structure of the superconducting magnet in this example is almost the same as that of the conventional one, so the explanation here will be omitted.
第３図に示す如く、本実施例ではヘリウム容器
１に締付ボルト８とコイル押え用スペーサ９から
成るコイル締付機構を設け、ヘリウム容器１とパ
ンケーキコイル５間、及びパンケーキコイル５間
を軸方向に圧縮し隙間が生じないようにしてい
る。即ち、パンケーキコイル５、及びパイ間スペ
ーサ７を交互に積層し、コイル締付板３、及び締
付通しボルト６で仮固定してヘリウム容器１に収
納する。積層パンケーキコイルをヘリウム容器１
に収納後、ヘリウム容器１の側面面に設けている
締付ボルト８を回し、スペーサ９を介して積層パ
ンケーキコイルに前もつて圧縮力を与えておくこ
とにより、ヘリウム容器１とパンケーキコイル５
間に隙間が生じないようにすることが出来る。 As shown in FIG. 3, in this embodiment, a coil tightening mechanism consisting of a tightening bolt 8 and a coil holding spacer 9 is provided in the helium container 1, and the coil tightening mechanism is provided between the helium container 1 and the pancake coil 5, and between the pancake coil 5. is compressed in the axial direction to prevent gaps from forming. That is, the pancake coils 5 and the inter-pie spacers 7 are stacked alternately, temporarily fixed with the coil tightening plate 3 and the tightening bolt 6, and then stored in the helium container 1. Laminated pancake coil in helium container 1
After storage, the helium container 1 and the pancake coil are tightened by turning the tightening bolt 8 provided on the side surface of the helium container 1 and applying compressive force to the laminated pancake coil through the spacer 9. 5
It is possible to prevent a gap from occurring between the two.
従つて、超電導磁石が高磁界、大形化しても励
磁時に生じる強大な電磁力、あるいは極低温に冷
却することによる材料の熱収縮があつても、コイ
ル締付機構により締付けられているため、ヘリウ
ム容器１とパンケーキコイル５間に隙間が生じる
ことはない。よつて、超電導磁石に転倒力がかか
るように磁界が印加されても、隙間がないため急
激に変位することはなく、超電導磁石がクエンチ
することが防止される。 Therefore, even if superconducting magnets are subjected to high magnetic fields and become larger, even if there is a strong electromagnetic force generated during excitation or thermal contraction of the material due to cooling to an extremely low temperature, the coil tightening mechanism will still tighten the magnet. There is no gap between the helium container 1 and the pancake coil 5. Therefore, even if a magnetic field is applied to the superconducting magnet so as to cause a falling force, the superconducting magnet will not be suddenly displaced because there is no gap, and the superconducting magnet will be prevented from quenching.
第４図は本考案の応用例を示す。該図は該融合
装置に用いられるトロイダルコイル用の超電導磁
石である。該融合装置に用いるトロイダルコイル
用超電導磁石は、真空容器を取り囲んで放射状に
配列されるため、コイル断面積を有効に取る必要
があり、コイルの断面形状は第４図に示すよう
に、一部台形形状を成し、パンケーキコイル５が
階段状に配置されている。このような場合には、
階段状に合せた角部スペーサ１０を用いることに
より強固に固定でき、その効果は上述した実施例
と全く同様である。 FIG. 4 shows an example of application of the present invention. The figure shows a superconducting magnet for a toroidal coil used in the fusion device. The superconducting magnets for the toroidal coils used in the fusion device are arranged radially surrounding the vacuum vessel, so it is necessary to take advantage of the cross-sectional area of the coils, as shown in Figure 4. It has a trapezoidal shape, and the pancake coils 5 are arranged in a stepwise manner. In such a case,
By using the stepped corner spacers 10, firm fixation can be achieved, and the effect is exactly the same as in the embodiment described above.
以上説明した本考案の超電導磁石によれば、積
層されたパンケーキコイルに圧縮力を加えるコイ
ル締付機構をヘリウム容器に設けたものであるか
ら、ヘリウム容器とパンケーキコイル間に隙間が
生じることがないので、電磁力等が加わつても超
電導磁石はクエンチすることがなく非常に有効で
ある。 According to the superconducting magnet of the present invention as described above, a helium container is provided with a coil tightening mechanism that applies compressive force to the stacked pancake coils, so a gap will not occur between the helium container and the pancake coils. Therefore, superconducting magnets do not quench even when electromagnetic force is applied, making them extremely effective.
第１図は従来の超電導磁石を一部破断して示す
斜視図、第２図は第１図のＡ−A′断面図、第３
図は本考案の超電導磁石の一実施例を示す第２図
に相当する図、第４図は該融合装置のトロイダル
コイルに適用した本考案の応用例を示す第２図に
相当する図である。
１……ヘリウム容器、２……対地間絶縁、３…
…コイル締付板、４……締付通しボルト、５……
パンケーキコイル、６……層間絶縁、７……パイ
間スペーサ、８……締付ボルト、９……スペー
サ、１０……角部スペーサ。
Fig. 1 is a partially cutaway perspective view of a conventional superconducting magnet, Fig. 2 is a sectional view taken along line A-A' in Fig. 1, and Fig.
The figure is a diagram corresponding to FIG. 2 showing an embodiment of the superconducting magnet of the present invention, and FIG. 4 is a diagram corresponding to FIG. 2 showing an application example of the present invention applied to a toroidal coil of the fusion device. . 1... Helium container, 2... Ground insulation, 3...
...Coil tightening plate, 4...Tightening bolt, 5...
Pancake coil, 6... Interlayer insulation, 7... Spacer between pis, 8... Tightening bolt, 9... Spacer, 10... Corner spacer.
Claims (1)
該パンケーキコイルを軸方向に複数積層され、そ
のパンケーキコイル間に挿入されたパイ間スペー
サと、複数積層されて締付固定されたパンケーキ
コイルを液体ヘリウム中に浸漬して収納するヘリ
ウム容器とを備えた超電導磁石において、上記ヘ
リウム容器に積層された前記パンケーキコイルに
圧縮を加えるコイル締付機構を設けたことを特徴
とする超電導磁石。 A pancake coil made by winding superconducting wire,
A helium container in which a plurality of the pancake coils are stacked in the axial direction, an inter-pi spacer inserted between the pancake coils, and a plurality of stacked and tightened pancake coils are immersed and stored in liquid helium. A superconducting magnet comprising: a coil tightening mechanism for applying compression to the pancake coil stacked on the helium container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980047048U JPS6112647Y2 (en) | 1980-04-09 | 1980-04-09 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980047048U JPS6112647Y2 (en) | 1980-04-09 | 1980-04-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56149423U JPS56149423U (en) | 1981-11-10 |
| JPS6112647Y2 true JPS6112647Y2 (en) | 1986-04-19 |
Family
ID=29642056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980047048U Expired JPS6112647Y2 (en) | 1980-04-09 | 1980-04-09 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6112647Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8557950B2 (en) | 2005-06-16 | 2013-10-15 | Grupo Petrotemex, S.A. De C.V. | High intrinsic viscosity melt phase polyester polymers with acceptable acetaldehyde generation rates |
| US9267007B2 (en) | 2005-09-16 | 2016-02-23 | Grupo Petrotemex, S.A. De C.V. | Method for addition of additives into a polymer melt |
-
1980
- 1980-04-09 JP JP1980047048U patent/JPS6112647Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56149423U (en) | 1981-11-10 |
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