JPH02151004A - Connection of poloidal magnetic field coil - Google Patents
Connection of poloidal magnetic field coilInfo
- Publication number
- JPH02151004A JPH02151004A JP63303928A JP30392888A JPH02151004A JP H02151004 A JPH02151004 A JP H02151004A JP 63303928 A JP63303928 A JP 63303928A JP 30392888 A JP30392888 A JP 30392888A JP H02151004 A JPH02151004 A JP H02151004A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic field
- coil
- cooling
- conductor
- poloidal magnetic
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 28
- 239000004020 conductor Substances 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002826 coolant Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000003466 welding Methods 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims abstract description 4
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 abstract description 3
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 11
- 230000004927 fusion Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 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
- Manufacturing Of Electrical Connectors (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は核融合装置のポロイダル磁場コイルの接続方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a method for connecting poloidal magnetic field coils of a nuclear fusion device.
（従来の技術）
第２図ないし第５図を参照して核融合装置のポロイダル
磁場コイルおよびその従来の接続方法を説明する。第２
図はトカマク型核融合装置の縦断面図、第３図は同水平
断面図の一部である。トーラス状のプラズマ真空容器■
に沿ってポロイダル磁場コイル■が設置され、またこれ
らの機器とリンクした状態でトロイダル磁場コイル■が
放射状に設置される。このような装置の組立は一般的に
ポロイダル磁場コイル■およびプラズマ真空容器■の一
部分を切り欠いてこの空間よりトロイダル磁場コイル■
を装置半径方向から挿入し、順次トーラス方向に廻し込
んで組み立てる。そして、最後のトロイダル磁場コイル
（３Ａ）を挿入した後、ポロイダル磁場コイル■の接続
用セクタ（２Ａ）をセットし、両端接続部（ハ）を溶接
等により接続し、電気絶縁処理を施してコイルとして所
定の性能を持たせている。その後、セクタ状に分割され
たプラズマ真空容器セクタ（ＩＡ）をトロイダル磁場コ
イル■の間より挿入し接続してトーラス状の真空容器■
を形成する。(Prior Art) A poloidal magnetic field coil of a nuclear fusion device and a conventional connection method thereof will be described with reference to FIGS. 2 to 5. Second
The figure is a longitudinal cross-sectional view of a tokamak-type nuclear fusion device, and FIG. 3 is a part of a horizontal cross-sectional view of the same. Toroidal plasma vacuum vessel■
Poloidal magnetic field coils (■) are installed along these devices, and toroidal magnetic field coils (■) are installed radially in a state linked to these devices. To assemble such a device, generally, a part of the poloidal magnetic field coil ■ and the plasma vacuum vessel ■ are cut out, and the toroidal magnetic field coil ■ is inserted from this space.
Insert it from the radial direction of the device and turn it sequentially in the torus direction to assemble. After inserting the last toroidal magnetic field coil (3A), set the connection sector (2A) of the poloidal magnetic field coil (■), connect both ends (c) by welding, etc., apply electrical insulation treatment, and then coil It has a predetermined performance. After that, the plasma vacuum vessel sector (IA) divided into sectors is inserted between the toroidal magnetic field coils and connected to form a torus-shaped vacuum vessel.
form.
（発明が解決しようとする課題）
ポロイダル磁場コイルの接続部は第４図に示すように導
体■が複数ターン設置される場合が多く、大地絶縁は現
地絶縁処理部（図示していない）との取り合い部分であ
るテーパー絶縁部（６Ａ）があり、また、予め処理され
た一般絶縁部０がある。(Problem to be Solved by the Invention) As shown in Figure 4, the connection part of a poloidal magnetic field coil is often provided with multiple turns of the conductor, and the ground insulation is connected to the on-site insulation processing part (not shown). There is a tapered insulation part (6A) which is a connecting part, and there is also a general insulation part 0 which has been processed in advance.
また、接続部は第５図に示すように限られた接続空間（
Ｌ）の中で溶接部（イ）から熱勾配区間（Ｑよ）、冷却
区間（ｘｉ ） 、絶縁取り合い部のテーパ一部（６Ａ
）区間（Ｑ３）を確保する必要がある。In addition, the connection part has a limited connection space (as shown in Fig. 5).
L), from the welding part (A) to the thermal gradient section (Q), the cooling section (xi), and the tapered part of the insulation joint (6A
) section (Q3) must be secured.
導体■の接続部（イ）の溶接を行う場合、溶接部に）は
１０００℃以上となり、冷却を行わない場合には熱伝導
によりテーパー絶縁部（６Ａ）の導体温度も上昇し絶縁
材の許容温度を越え絶縁材を損傷、劣化させてしまう。When welding the connection part (a) of conductor (), the temperature at the welded part) will exceed 1000℃, and if cooling is not performed, the conductor temperature of the tapered insulation part (6A) will also rise due to heat conduction, causing the tolerance of the insulation material to rise. Exceeding the temperature will damage and deteriorate the insulation material.
このため前述のように冷却区間（６）、熱勾配区間（Ｑ
、）を設けるが、従来は第５図に示すように、冷却配管
を備えた冷却板■を導体■の両側から押し肖でて冷却す
る方法がとられていた。この方法では冷却板■と導体０
間の平面度。Therefore, as mentioned above, the cooling section (6) and the thermal gradient section (Q
, ), but conventionally, as shown in FIG. 5, a cooling plate (2) equipped with cooling pipes was pushed out from both sides of the conductor (2) for cooling. In this method, the cooling plate ■ and the conductor 0
Flatness between.
面粗さ、溶接進行にともなう変形等のため接触熱抵抗が
大きくなり、有効な冷却を行うには冷却区間（１２２）
の増大となる。Contact thermal resistance increases due to surface roughness, deformation due to welding progress, etc., and cooling section (122) is required for effective cooling.
This results in an increase in
一方、熱勾配区間（１２１）は溶接部の巣を防止し導゛
准率と機械的強度を確保するためには極端に短くするこ
とはできない（溶接部の予加熱の観点から）。On the other hand, the thermal gradient section (121) cannot be made extremely short in order to prevent cavities in the weld zone and ensure conductivity and mechanical strength (from the viewpoint of preheating the weld zone).
限られた接続空間（Ｌ）の中で前記の各必要空間を確保
するためには冷却区間（Ｑ、）を最小化するのが最も有
効である。In order to secure each of the above-mentioned necessary spaces within the limited connection space (L), it is most effective to minimize the cooling section (Q,).
従って本発明の目的は、限られた空間において確実に接
続でき、所定の性能を有するポロイダル磁場コイルの接
続方法を提供することにある。Therefore, an object of the present invention is to provide a method for connecting poloidal magnetic field coils that can be reliably connected in a limited space and has a predetermined performance.
（課題を解決するための手段）
上記問題点を解決するため、本発明のポロイダル磁場コ
イルの接続部においては、冷却板の代りにカバーを設け
て直接、液体窒素又は、冷却された窒素ガス等の冷媒を
吹き付けて冷却を行いながら溶接作業を行う方法とする
。(Means for Solving the Problems) In order to solve the above problems, a cover is provided instead of a cooling plate at the connection part of the poloidal magnetic field coil of the present invention, and liquid nitrogen or cooled nitrogen gas Welding work is performed while cooling by spraying refrigerant.
（作 用）
このようなポロイダル磁場コイルの接続法においては、
冷却管０に設けた噴出孔■等から噴出した冷却媒体は直
接、導体■の表面を冷却するので効果的に冷却すること
ができ、冷却に要する空間も少なくてすみ、限られた接
続空間（Ｌ）の中で処理することができる。(Function) In this connection method of poloidal magnetic field coils,
The cooling medium ejected from the ejection holes (■) etc. provided in the cooling pipe 0 directly cools the surface of the conductor (■), so it can be effectively cooled. L).
（実施例）
以下、本発明の実施例について説明する。第１図はポロ
イダルコイルの接続部の冷却構造を示す。(Example) Examples of the present invention will be described below. FIG. 1 shows a cooling structure for a connection part of a poloidal coil.
カバー（１０）の内側に噴出孔（９）を有する冷却管■
を設けた冷却装置をコイル導体■の両側に設置する。Cooling pipe with a blowout hole (9) inside the cover (10)■
Install a cooling device on both sides of the coil conductor (2).
カバー（１０）には冷媒が溶接部および絶縁部側へ漏れ
出るのを防止するための封止部（１１）を設ける。The cover (10) is provided with a sealing portion (11) for preventing the refrigerant from leaking toward the welded portion and the insulation portion.
次に作用を説明する。Next, the effect will be explained.
冷却管（ハ）に外部より液体窒素あるいは冷却された窒
素ガス等の不活性冷却媒体に導き、噴出孔■から噴出さ
せ直接、導体０の表面に当て冷却する。An inert cooling medium such as liquid nitrogen or cooled nitrogen gas is introduced into the cooling pipe (c) from the outside, and is ejected from the ejection hole (2) to directly contact the surface of the conductor 0 for cooling.
冷却した媒体はカバー（１０）の端面（紙面に垂直方向
）より排出される。この場合カバー（ｌＯ）および封止
部（１１）により冷却媒体が溶接部および絶縁部へ漏れ
出て過度に両箇所を冷却することを防止する。The cooled medium is discharged from the end surface of the cover (10) (in a direction perpendicular to the plane of the paper). In this case, the cover (lO) and the sealing part (11) prevent the cooling medium from leaking into the welded part and the insulation part and excessively cool both parts.
このように不活性冷却媒体を直接導体０に吹き付けて冷
却する構造としたので、効果的に冷却でき少ない冷却区
間で冷却することができる。また、冷却媒体に窒素等の
不活性物質を使用しているので、導体冷却後はガス体と
なって排出されるので、例えば周囲へ漏れ出て飛散して
もコイルの絶縁等に悪影響を与える恐れはない。Since the structure is such that the inert cooling medium is directly sprayed onto the conductor 0 for cooling, the conductor 0 can be cooled effectively and in a small cooling section. In addition, since an inert substance such as nitrogen is used as a cooling medium, it is emitted as a gas after the conductor has been cooled, so even if it leaks into the surrounding area and scatters, it will have a negative impact on the insulation of the coil, etc. There's no fear.
以上のように、本発明によれば不活性冷却媒体を直接導
体に吹き付けて冷却する方法としたので。As described above, according to the present invention, an inert cooling medium is directly sprayed onto the conductor for cooling.
限られたコイルの接続スペースにおいても導体の接続を
確実に行うことができる。Conductors can be reliably connected even in a limited coil connection space.
第１図は本発明の実施例のポロイダル磁場コイルの接続
方法を示す断面図、第２図はトカマク型核融合装置の概
略構造を示す縦断面図、第３図は第２図の■−■線に沿
う水平断面図、第４図は一般的なボロイダル磁場コイル
の接続部を示す断面図、第５図は従来のポロイダルａ場
コイルの接続方法を示す断面図である。
１・・・プラズマ真空容器
ＩＡ・・・プラズマ真空容器セクタ
２・・・ポロイダル磁場コイル
２Ａ゛・°ポロイダル磁場コイル接続セクタ３・・トロ
イダル磁場コイル
４・・溶接部 ５・・・導体６・・・−股部
絶縁 ６Ａ・・・テーパ一部絶縁７・・・冷却板
８・・・冷却管９・・噴出孔
１０・・・カバー１１・・・封止部
代理人 弁理士 則 近 憲 佑
同 第子丸 健
第
図
第
図Fig. 1 is a cross-sectional view showing a method of connecting poloidal magnetic field coils according to an embodiment of the present invention, Fig. 2 is a longitudinal cross-sectional view showing a schematic structure of a tokamak type nuclear fusion device, and Fig. 3 is a cross-sectional view showing the schematic structure of a tokamak-type nuclear fusion device. 4 is a sectional view showing a connecting portion of a general poloidal magnetic field coil, and FIG. 5 is a sectional view showing a conventional method of connecting a poloidal a-field coil. 1... Plasma vacuum vessel IA... Plasma vacuum vessel sector 2... Poloidal magnetic field coil 2A゛・° Poloidal magnetic field coil connection sector 3... Toroidal magnetic field coil 4... Welding part 5... Conductor 6... - Crotch insulation 6A...Tapered partial insulation 7...Cooling plate 8...Cooling pipe 9...Blowout hole
10...Cover 11...Sealing Department Agent Patent Attorney Nori Ken Yudo Chika Ken Daishimaru Figure Figure
Claims (3)
法において、該コイルの溶接箇所から離れた位置に液体
窒素あるいは窒素ガス等の不活性冷却媒体を吹き付け冷
却しながらコイル導体の溶接を行うことを特徴とするポ
ロイダル磁場コイルの接続方法。(1) In the method of connecting a poloidal magnetic field coil divided into two or more parts, it is recommended to weld the coil conductor while cooling the coil by spraying an inert cooling medium such as liquid nitrogen or nitrogen gas at a position away from the welding point of the coil. How to connect the poloidal magnetic field coil.
ことを特徴とする請求項（１）項記載のポロイダル磁場
コイルの接続方法。(2) The method for connecting poloidal magnetic field coils according to claim (1), characterized in that a cover is provided to prevent the cooling medium from scattering.
およびカバーと導体間の封止を行う封止部を備えたこと
を特徴とする請求項（１）項記載のポロイダル磁場コイ
ルの接続方法。(3) Connection of the poloidal magnetic field coil according to claim (1), wherein the cover is provided with a cooling pipe for spouting a cooling medium, a discharge hole, and a sealing part for sealing between the cover and the conductor. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303928A JPH02151004A (en) | 1988-12-02 | 1988-12-02 | Connection of poloidal magnetic field coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63303928A JPH02151004A (en) | 1988-12-02 | 1988-12-02 | Connection of poloidal magnetic field coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02151004A true JPH02151004A (en) | 1990-06-11 |
Family
ID=17926965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63303928A Pending JPH02151004A (en) | 1988-12-02 | 1988-12-02 | Connection of poloidal magnetic field coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02151004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8967450B2 (en) | 2010-12-16 | 2015-03-03 | Air Liquide Industrial U.S. Lp | Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone |
-
1988
- 1988-12-02 JP JP63303928A patent/JPH02151004A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8967450B2 (en) | 2010-12-16 | 2015-03-03 | Air Liquide Industrial U.S. Lp | Method for reduced cycle times in multi-pass welding while providing an inert atmosphere to the welding zone |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2005070583A1 (en) | Apparatus and method for manufacture of a driveshaft | |
| JPH02151004A (en) | Connection of poloidal magnetic field coil | |
| JP4239132B2 (en) | Weldable clamp for conduits made of heat-weldable material | |
| JPS63153398A (en) | Method of repairing or protecting terminal of metallic heat exchanging tube and sleeve used for said method | |
| US4264801A (en) | Method of welding tube to header of heat exchanger | |
| JPS6311242A (en) | Method of bonding ceramic and metal | |
| JP3694364B2 (en) | Induction heating diffusion bonding method | |
| JPH09136160A (en) | Method for seal-welding end plate of heat exchanger and flat tube | |
| CN111477352B (en) | U-shaped device for adjacent cooling channel of first wall of divertor of fusion device and assembly method thereof | |
| JPS59177892A (en) | High frequency coil for moving and quenching cylindrical inner peripheral orbit groove with irregular thick unit | |
| JPS59109818A (en) | Electromagnetic flowmeter | |
| KR200246229Y1 (en) | Heat exchanger of heat storage tank using ice heat storage | |
| JP2517618B2 (en) | ERW pipe forming squeeze roll | |
| JPS6215843A (en) | Liquid feeding pipe for low temperature | |
| JPS6030563A (en) | Production of hot roll | |
| JPS6230600B2 (en) | ||
| JPH0133277Y2 (en) | ||
| KR200141057Y1 (en) | Welding ring | |
| JP3171414B2 (en) | Method of manufacturing copper parts with cooling holes | |
| JP2002257274A (en) | Formation method for insertion projection part in tube | |
| JPS6210222A (en) | Annealing method for weld zone of thin-walled vessel and cooler to be used for said method | |
| JPS625037Y2 (en) | ||
| JPS624305A (en) | Superconducting magnet apparatus | |
| JP3127592B2 (en) | Cryogenic container and superconductive magnet | |
| JPS60196265A (en) | Welding method of pipe |