JPS6079285A - Tokamak type nuclear fusion device - Google Patents
Tokamak type nuclear fusion deviceInfo
- Publication number
- JPS6079285A JPS6079285A JP58186969A JP18696983A JPS6079285A JP S6079285 A JPS6079285 A JP S6079285A JP 58186969 A JP58186969 A JP 58186969A JP 18696983 A JP18696983 A JP 18696983A JP S6079285 A JPS6079285 A JP S6079285A
- Authority
- JP
- Japan
- Prior art keywords
- toroidal coil
- tokamak
- centripetal force
- coil
- center column
- 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.)
- Pending
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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Plasma Technology (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、トロイダルコイルの向心力支持用として、装
置中心に設置される中心柱構造を改良したトカマク型、
核融合装置に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a tokamak type tokamak with an improved central column structure installed at the center of the device for supporting the centripetal force of a toroidal coil.
Regarding nuclear fusion devices.
核融合装置におけるトロイダルコイルはプラズマ閉じ込
めのため、トロイダル磁場を発生させるが、それに伴い
ｌ・ロイダルコイルには電磁力が生する。第１１’＋／
！ 、第２図にトロイダルコイル（１）への電磁力作用
を模式的に示す。電磁力は拡張力（２）と呼ばれ、トロ
イダルコイル（１）を外側へ拡げようとする力で、その
半径方向分力がいわゆる向心力（３）と呼ばれ、トロイ
ダルコイル（１）を装置甲心へ押し付ける方向に作用す
る。The toroidal coil in a nuclear fusion device generates a toroidal magnetic field for plasma confinement, and along with this, an electromagnetic force is generated in the l-roidal coil. 11th +/
! , FIG. 2 schematically shows the action of electromagnetic force on the toroidal coil (1). The electromagnetic force is called the expansion force (2), and is a force that tries to expand the toroidal coil (1) outward.The radial component of the force is called the centripetal force (3), which causes the toroidal coil (1) to expand outward. It acts in a direction that pushes it towards the heart.
この向心力（３）は装置の中心に設置された中心柱（４
）で支持される。（５）は真空容器を示す。This centripetal force (3) is caused by the central column (4) installed at the center of the device.
) is supported. (5) indicates a vacuum container.
従来の中心柱（４）の代表的構造を第３図、および第４
図に示す。第３図に示すように中心柱（４）の高さ方向
に断面一様か、もしくは、第４図に示すようにコイル中
心水平面位置（７）で断面が小さくなるような構造であ
った。中心水平断面で上−ト端断面よりも小さくなるの
は、主として、トロイダルコイル（１）が円形状の時に
みられ、コイル形状からくるスペース的制約によるもの
である。第３図に、向心力の高さ方向分布（６）を模式
的に示すが、一般に向心力はコイル中心水平面（力で大
きく、上下端に行くに従って減少する傾向をもつ。従っ
て向心力による中心柱（４）の装置半径方向変形量（８
）も水平面で大きく、上下端で小さく、向心力分布（６
）に応じて減少する。The typical structure of the conventional central pillar (4) is shown in Figures 3 and 4.
As shown in the figure. As shown in FIG. 3, the cross section was uniform in the height direction of the central column (4), or as shown in FIG. 4, the cross section became smaller at the coil center horizontal plane position (7). The reason why the center horizontal cross section is smaller than the top end cross section is mainly observed when the toroidal coil (1) is circular, and is due to space constraints caused by the coil shape. Figure 3 schematically shows the distribution (6) of centripetal force in the height direction. Generally speaking, centripetal force is large in the coil center horizontal plane (force) and tends to decrease toward the upper and lower ends. ) of device radial deformation (8
) is also large on the horizontal plane, small on the top and bottom edges, and the centripetal force distribution (6
) decreases according to
ところで、トロイダルコイル（１） （ａｌ、中心柱回
りに放射状に配置さＪするため、コイル内側で且つ水平
面上でのスば一部の制約が大きく、この部分σ）コイル
断面が最も小さい、即ち、剛性が最も小さい。従って、
向心力分布（６）に加えてコイル断面のＦ）’Ｊ ｔの
高さ方向分布のため、中心水ｉＦ−面（力で変形搦１８
）は増々顕著になる。By the way, toroidal coil (1) (al, because it is arranged radially around the central column, there is a big restriction on the part inside the coil and on the horizontal plane, and this part σ) has the smallest coil cross section, i.e. , the stiffness is the smallest. Therefore,
In addition to the centripetal force distribution (6), due to the height distribution of the coil cross section F)'Jt, the center water iF-plane (deformed by force
) becomes increasingly prominent.
これは、トロイダルコイル（１）の強度設計上大きな問
題であった。４１？にｌカマク型核１５”１（合装置す
′のよう々大型装置で（ｒよ、トロイダルコイル（１）
の強度的健全性にとって、大きな問題となる。This was a major problem in designing the strength of the toroidal coil (1). 41? In a large device like a kamak type nucleus 15"1 (combined device) (r, toroidal coil (1)
This poses a major problem for the strength and soundness of the system.
本発明はトロイダルコイルの向心力によるトロイダルコ
イルの装置半径方向変位量（８）を高さ方向にはホ等し
くし、トロイダルコイル強度上安全々ものにするための
、中心柱構造を有するトカマク型核融合装置を提供する
ことを目的とする。The present invention is a tokamak-type nuclear fusion device having a central column structure in order to make the device radial displacement amount (8) of the toroidal coil equal to E in the height direction due to the centripetal force of the toroidal coil, and to make the toroidal coil safe in terms of strength. The purpose is to provide equipment.
本発明においては、中心柱は、装置高さ方向の向心力分
布に応じて、各位Ｖ７の板厚を内側に変化させた円筒形
状で、且つ、中心柱の装置半径方向変位量が各高さでほ
ぼ均一になるように板厚を定めることにより、トロイダ
ルコイルの強度上の安全性を犬にし、トカマク型核を渉
合装置の信頼性を高めるものである。In the present invention, the center column has a cylindrical shape in which the plate thickness of each V7 is changed inward according to the centripetal force distribution in the device height direction, and the amount of displacement of the center column in the device radial direction changes at each height. By determining the plate thickness so that it is almost uniform, the strength and safety of the toroidal coil can be improved, and the reliability of the tokamak type core welding device can be increased.
以下、本発明の一実施例について、第５図を参照して説
、明する。尚このトカマク型核ｉ？１１合装置の概、略
断面図は第１図および１’４２１ヌ１の叫１りでｐ）シ
、中心柱（４）の詳Ｘ１ｌｌ構造が第５図のようになっ
ているのであるから、第１図、第２図も参照されたい。Hereinafter, one embodiment of the present invention will be described and explained with reference to FIG. Furthermore, this tokamak-shaped nucleus i? The outline and schematic cross-sectional view of the 11-coupling device are shown in Figure 1 and 1'421-1, and the detailed structure of the central column (4) is as shown in Figure 5. , FIG. 1, and FIG. 2.
この実施例の中心柱（４）は外径一定の中空円筒形状で
中空部（９）は中心柱（４）の高さ方向Ｕこ、向心力分
布に応じて内径を変化させている。即ち、中心柱板厚ｔ
は向心力の大きい中心水平面（７）で厚く、上下端部で
薄くなる構造である。The center column (4) of this embodiment has a hollow cylindrical shape with a constant outer diameter, and the inner diameter of the hollow portion (9) changes in accordance with the centripetal force distribution in the height direction U of the center column (4). That is, the center column plate thickness t
has a structure that is thick at the central horizontal plane (7) where the centripetal force is large and thinner at the upper and lower ends.
中心柱高さ方向の任意の位置における中心柱板厚をｔ、
向心力圧力をＰ、円筒の中立紳半径をｒ、又、中心柱ヤ
ング率をＥとし、中心柱の半径方向変位量をδｉ（一定
）とすると、
ここでｒ。は中心柱外径
となる。従って、中心柱（円筒）の高さ方向の板厚分布
は（１０１）、 （１０２）式からめられたものである
Ｏ
次に作用について説明する。The thickness of the center column at any position in the height direction of the center column is t,
Assuming that the centripetal pressure is P, the neutral radius of the cylinder is r, the Young's modulus of the center column is E, and the amount of radial displacement of the center column is δi (constant), then r. is the outer diameter of the central column. Therefore, the plate thickness distribution in the height direction of the central column (cylinder) is obtained from equations (101) and (102).Next, the effect will be explained.
上記（１０１）、 （１０２）式からめられた板厚分布
を有する中心柱（円筒）は、トロイダルコイル（１）の
向心力が作用しても、半径方向にほぼ均一に変形し、よ
って、トロイダルコイル内側部分に、曲げは生じにくく
、トロイダルコイル強度上有効である。又、トロイダル
コイル内側の装置半径方向変位がほぼ均一のため、負荷
時にトロイダルコイル（１）ト中心柱（４）との接触面
の片当りのような問題も大幅に低減出来る。片当りが一
部存在すると、トロイダルコイル強度は大巾に低下する
のであるが、これが大幅に低減できるので、トカマク型
核融合装置の信頼性が大幅に向上する。Even if the centripetal force of the toroidal coil (1) acts on the central column (cylindrical) having the plate thickness distribution determined by the above equations (101) and (102), it deforms almost uniformly in the radial direction, and therefore, the toroidal coil Bending is less likely to occur in the inner portion, which is effective in improving the strength of the toroidal coil. Furthermore, since the displacement in the radial direction of the device inside the toroidal coil is almost uniform, problems such as uneven contact between the toroidal coil (1) and the center column (4) during loading can be greatly reduced. If there is some partial contact, the toroidal coil strength will be significantly reduced, but this can be significantly reduced, and the reliability of the tokamak-type fusion device is greatly improved.
以上説明したように、本発明によれば、トロイダルコイ
ル向心力を支持する中心柱構造において、装置高さ方向
の向心力分布に応じて、各位ｆ６−における板厚を内側
に変化させだ円筒形状を有する中心柱構造としたので、
これによって、トロイダルコイルの装置半径方向変位を
ほぼ均一に保つことが出来、トロイダルコイルの強度上
有効になるとともに、さらに、負荷時にトロイダルコイ
ルと中心柱接触面（支持面）で片当りのような現象を大
幅に低減出来る。従って強度上安全で信頼性の高いトカ
マク型核融合装価を提（Ｊにすることができる。As explained above, according to the present invention, the central column structure supporting the centripetal force of the toroidal coil has a cylindrical shape in which the plate thickness at each point f6- is changed inward according to the centripetal force distribution in the device height direction. Because it has a central column structure,
This makes it possible to keep the displacement of the toroidal coil in the radial direction of the device almost uniform, which is effective for improving the strength of the toroidal coil, and also prevents uneven contact between the toroidal coil and the center column contact surface (support surface) during loading. The phenomenon can be significantly reduced. Therefore, it is possible to provide a strong, safe and reliable tokamak-type fusion charge (J).
第１図は従来および本発明の一実施例に共通しだ部分を
示すトカマク型核融合装置の縦断面図にトロイダルコイ
ルの！磁力作用を模式的に図示した説明図、鶴２図は第
１図の横断面図、第３図および第４図は第１図の従来の
場合のそれぞれ異なる中心柱を示す斜視図、第５図は第
１図の本発明の一実施例の場合の中心柱を示す斜視図で
ある。
１ トロイダルコイル ２ 拡張力
３・・向心力 ４・中心柱
５・・真空容器 ６・・向心力分布
７ コイル中心水平面 ８−装置半径方向変位量９−中
空部 ｔ・・・中心柱の板厚
代理人 弁理士 井 上 −夕」
第 １ 図
第 ２ 図FIG. 1 is a vertical sectional view of a tokamak-type nuclear fusion device showing the common parts of the conventional and one embodiment of the present invention, and a toroidal coil. An explanatory diagram schematically illustrating the magnetic force action, Figure 2 is a cross-sectional view of Figure 1, Figures 3 and 4 are perspective views showing different central pillars in the conventional case of Figure 1, and Figure 5 is a cross-sectional view of Figure 1. This figure is a perspective view showing the central column in the case of one embodiment of the present invention shown in FIG. 1 Toroidal coil 2 Expansion force 3 Centripetal force 4 Center column 5 Vacuum vessel 6 Centripetal force distribution 7 Coil center horizontal plane 8 - Device radial displacement 9 - Hollow part t... Thickness agent of center column Patent Attorney Yu Inoue Figure 1 Figure 2
Claims (1)
カマク型核融合装置ｉ１において、中心柱は装置高さ方
向の向心力分布に応じて、各位置の板厚を内側に変化さ
せた円筒形状で、且つ、中心柱の装置半径方向変位量が
各高さでほぼ均一になるように板厚を定めたことを特徴
とするトカマク型核ｒｙ＋を合装置。In the tokamak-type nuclear fusion device i1 having a center column that supports the centripetal force of the toroidal coil, the center column has a cylindrical shape with the plate thickness at each position changed inward according to the centripetal force distribution in the device height direction, and A tokamak-type nuclear RY+ device, characterized in that the plate thickness is determined so that the amount of radial displacement of the center column of the device is approximately uniform at each height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58186969A JPS6079285A (en) | 1983-10-07 | 1983-10-07 | Tokamak type nuclear fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58186969A JPS6079285A (en) | 1983-10-07 | 1983-10-07 | Tokamak type nuclear fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6079285A true JPS6079285A (en) | 1985-05-07 |
Family
ID=16197890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58186969A Pending JPS6079285A (en) | 1983-10-07 | 1983-10-07 | Tokamak type nuclear fusion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6079285A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002050513A (en) * | 2000-07-31 | 2002-02-15 | Mitsubishi Electric Corp | Toroidal magnetic-field coil |
-
1983
- 1983-10-07 JP JP58186969A patent/JPS6079285A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002050513A (en) * | 2000-07-31 | 2002-02-15 | Mitsubishi Electric Corp | Toroidal magnetic-field coil |
| JP4672117B2 (en) * | 2000-07-31 | 2011-04-20 | 三菱電機株式会社 | Toroidal field coil |
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