JPS6022756B2 - Vacuum vessel structure in plasma generator - Google Patents
Vacuum vessel structure in plasma generatorInfo
- Publication number
- JPS6022756B2 JPS6022756B2 JP53112299A JP11229978A JPS6022756B2 JP S6022756 B2 JPS6022756 B2 JP S6022756B2 JP 53112299 A JP53112299 A JP 53112299A JP 11229978 A JP11229978 A JP 11229978A JP S6022756 B2 JPS6022756 B2 JP S6022756B2
- Authority
- JP
- Japan
- Prior art keywords
- vacuum vessel
- bellows
- thick
- vacuum
- vacuum container
- 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
- 239000012212 insulator Substances 0.000 claims description 8
- 239000011810 insulating material Substances 0.000 claims description 4
- 241000270666 Testudines Species 0.000 description 5
- 230000004927 fusion Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 235000012489 doughnuts Nutrition 0.000 description 2
- 241000270708 Testudinidae Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 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
- Plasma Technology (AREA)
Description
【発明の詳細な説明】
この発明はプラズマ試験装置や核融合装置に使用する真
空容器の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a vacuum vessel used in a plasma test device or a nuclear fusion device.
プラズマ試験装置或いは核融合装置の真空容器において
は譲導電流を減少させるために真空容器のトロイダル方
向の１ターン抵抗は数ミリオーム（肌Ｑ）から無限大ま
での電気抵抗値が設計条件として与えられている。この
電気抵抗を与えるために真空容器構造としては薄肉のべ
ローズ部或いは絶縁部を真空容器の一部として使用した
例が多い。すなわちこのような真空容器１は第１図に示
すように、ステンレス鋼等による真空容器厚肉部２とべ
ローズ若しくは絶縁部３とを接続して環状（ドーナツ状
）に成形される。一方この真空容器には第１図に示すよ
うに渦電流が発生し、特にべローズや絶縁部との接続部
に近い厚肉部にはポロィダル方向に流れる渦電流が発生
する。この渦電流とトロイダル磁場との相互作用により
、第２図に示すように、真空容器壁に垂直な電磁力が発
生し、これが、真空容器を変形させるように作用する。
この電磁力による真空容器の変形を防止するため、従来
はべローズ若しくは絶縁部両端の真空容器厚肉部を第３
図に示す如く内側若しくは外側に延出するリブ４，４′
構造とし、真空容器の変形を防ぎ、且つ、装置外周部に
設置される架台等に支持構造物を取付け、この支持構造
物によって真空容器厚肉部の変形を防いでいる。このた
め従来の真空容器においては、ＩＪブ構造による寸法の
増大があり、また支持構造のスペースを確保する必要か
ら空間取合設計が困難であった。この発明は上記の如き
事情に鑑みてなされたものであって、上記従来技術にお
ける欠点を解消し、真空容器内で発生する電磁力を真空
容器内で相互に打消すようにし、これによって真空容器
の厚肉部の変形を防ぎ、したがって真空容器の厚肉部の
リブ構造と支持構造物をなくし、装置及び空間取合設計
を容易にしたプラズマ発生装置における真空容器を提供
することを目的とするものである。In the vacuum vessel of a plasma test device or nuclear fusion device, in order to reduce the yield current, the one turn resistance in the toroidal direction of the vacuum vessel is given an electrical resistance value from several milliohms (skin Q) to infinity as a design condition. ing. In order to provide this electrical resistance, there are many examples in which a thin bellows portion or an insulating portion is used as a part of the vacuum container structure. That is, as shown in FIG. 1, such a vacuum container 1 is formed into an annular (doughnut-like) shape by connecting a thick-walled part 2 of the vacuum container made of stainless steel or the like and a bellows or insulating part 3. On the other hand, as shown in FIG. 1, eddy currents are generated in this vacuum container, and in particular, eddy currents flowing in the poloidal direction are generated in the thick wall portions near the connection portions with the bellows and insulating portions. As shown in FIG. 2, the interaction between this eddy current and the toroidal magnetic field generates an electromagnetic force perpendicular to the wall of the vacuum container, which acts to deform the vacuum container.
In order to prevent deformation of the vacuum container due to this electromagnetic force, conventionally the thick walled parts of the vacuum container at both ends of the bellows or insulating part were
Ribs 4, 4' extending inwardly or outwardly as shown in the figure.
In addition, a support structure is attached to a pedestal or the like installed on the outer periphery of the device, and this support structure prevents deformation of the thick part of the vacuum container. For this reason, in conventional vacuum containers, the dimensions have increased due to the IJ tube structure, and space allocation design has been difficult due to the need to secure space for the support structure. The present invention has been made in view of the above-mentioned circumstances, and eliminates the drawbacks of the above-mentioned prior art, by making the electromagnetic forces generated within the vacuum container mutually cancel each other out, and thereby It is an object of the present invention to provide a vacuum vessel in a plasma generator which prevents deformation of the thick wall part of the vacuum vessel, eliminates the rib structure and support structure of the thick wall part of the vacuum vessel, and facilitates the device and space arrangement design. It is something.
−この目的に対応してこの発明プラズマ発生装置に
おける真空容器簾造は真空容器厚肉部とべローズ若しく
は絶縁物とを接続して環状に形成した真空容器において
「ベローズ若しくは絶縁物をはさんで対向する厚肉部の
接続様部の少なくとも一方の外方部分をべローズ若しく
は絶縁物の外側において環状方向に延長させ「真空容器
壁にほぼ垂直な面内で他方の接続端部の外方部分に絶縁
物を介しキー構造により接続したことを特徴としている
。- Corresponding to this purpose, the vacuum vessel screen in the plasma generator of the present invention is a vacuum vessel formed into an annular shape by connecting the thick part of the vacuum vessel and a bellows or an insulator. The outer part of at least one of the connection-like parts of the thick walled part is extended in an annular direction on the outside of the bellows or the insulator, and It is characterized by being connected by a key structure through an insulator.
以下この発明の詳細を、一実施例を示す図面について説
明する。The details of this invention will be explained below with reference to the drawings showing one embodiment.
第４図、第６図及び第Ｓ図において富川ま真空容器であ
る。In Figures 4, 6, and S, Tomikawa is a vacuum vessel.
真空容器亀川ま環状断面を有しもかつ長さ方向に環状（
ドーナツ状）に形成される。真空容器富舵ま二つの厚肉
部亀２亀 １２′とおよび厚肉部亀盛り 亀２ｒの間に
環状方向に接続する一つのべ。ーズ軍翁とから成ってい
る。厚肉部とべローズとの接続部の構造は特に第富図及
び第餐図に示すように、厚肉部の接続端両軍８，竃４′
が環状方向（ドーナツの長さ方向）に対向しトかつ両接
続端面竃乳 富４′にべローズ翼３の両端が気密に接続
している。べロ−ズの内径は厚肉部亀２，１２「の環状
断面富蚤の内蓬と一致している。厚肉部の接続部１８附
近はべローズ軍３の外側に膨出し、かつ環状方向にべロ
ーズ電３を跨ぐように延長し、他方の真空容器陣肉部の
接続部亀６′の外方部分に接続している。両接続部３６
９１Ｓ′の端面２１９２亀「は真空容器壁に垂直な面内
において対向し〜かつボルト貴７１とよって接続される
。両接続部１６，貴６′の端面の間及びボルトと厚肉部
の間はそれぞれ絶縁物竃富及び絶縁カラ−１９によって
絶縁されている。両接続部の接続構造は図示の如くキー
構造とすることが望ましい。もっとも図示する実施例で
は、一方の厚肉部１２の接続部１銭だけがべローズ亀３
の外側に延長した構造となっているが、この他に、他方
の厚肉部１２′の接続部ｉ６′をべローズ亀３の外側に
延長する構造としてもよいし「また両者がべローズ１３
の外側の中間まで延長する構造としてもよい。このよう
な構成の真空容器においてはべローズ或いは絶縁部に対
向する真空容器の厚肉部端面２１，２１′の相互間には
逆方向（一方は第２図に示す方向〜他方はその逆方向）
の電磁力が発生するが、接続部の両端２１，２１′が絶
縁物を介して接続され〜 したがって厚肉部の壁に垂直
な互に逆方向な電磁力は相互に打消されることになる。The vacuum container Kamegawa has an annular cross section and an annular shape in the length direction (
It is formed into a donut shape. One bar connected in an annular direction between the two thick-walled part turtles 12' and the thick-walled part turtles 2r. It is made up of a group of military men. The structure of the connection between the thick wall part and the bellows is particularly as shown in Figures 1 and 2.
are opposed to each other in the annular direction (lengthwise direction of the donut), and both ends of the bellows blades 3 are airtightly connected to the connecting end faces 4'. The inner diameter of the bellows matches the inner diameter of the annular cross-section of the thick-walled portions 2 and 12. The area around the connection portion 18 of the thick-walled portion bulges out to the outside of the bellows portion 3, and has an annular shape. It extends so as to straddle the bellows electric conductor 3 in the direction, and is connected to the outer part of the connection part turtle 6' of the other vacuum container wall.Both connection parts 36
The end faces 2192 of 91S' face each other in a plane perpendicular to the wall of the vacuum vessel and are connected by the bolt nozzle 71. Between the end faces of the two connecting parts 16 and the nozzle 6' and between the bolt and the thick part. are insulated by an insulating material and an insulating collar 19. It is desirable that the connection structure of both connection parts be a key structure as shown in the figure. However, in the illustrated embodiment, the connection of one thick part 12 is Only part 1 sen is bellows turtle 3
However, in addition to this structure, the connection part i6' of the other thick part 12' may be extended to the outside of the bellows turtle 3.
It may have a structure that extends to the middle of the outside. In a vacuum container having such a structure, the end surfaces 21 and 21' of the thick part of the vacuum container facing the bellows or the insulating part are arranged in opposite directions (one in the direction shown in FIG. 2 and the other in the opposite direction). )
An electromagnetic force is generated, but both ends 21 and 21' of the connection part are connected through an insulator ~ Therefore, the electromagnetic forces in opposite directions perpendicular to the wall of the thick part cancel each other out. .
このため絶縁物附近では真空容器を変形させる力が作用
せずち真空容器の変形を防ぐことができる。また真空容
器全体に作用する電磁力はキー構造により連結されるた
め真空容器内で打消され外部へ力を伝達しない。したが
ってこのような真空容器の構造をプラズマ試験装置或い
は核融合装置の真空容器に採用すると「従来の真空容器
構造に採用していたリブ構造に与えていた空間が節約で
き、アスペクト比（プラズマ主半径／プラズマ断面半径
）の小さい装置ができる。このことは特に池機器との寸
法敬合が厳しく、各機器の寸法をできるだけ小さくさせ
ることを要求されるトカマク型核融合装置の真空容器の
設計、製造をきわめて有利にする。またこれは装置の４
・型化につながり「装置コストの低減を図ることもでき
る。さらにまたこの発明の構造によれば従来真空容器支
持のため採用していた支持構造物が不要になり、空間的
に余裕のある構造とすることができ、プラズマ計測用ボ
ート等の空間をより多く確保することができるため計測
のしやすい装置となる。しかも真空容器厚肉部の接続部
がキー構造であるため、接続部を強固にすることができ
る。以上の説明から明らかな通り、この発明によれば真
空容器内で発生する電磁力を真空容器内で相互に打消す
ようにし、これによって真空容器の厚肉部の変形を防ぎ
、したがって真空容器の厚肉部のリブ構造と支持構造物
をなくし、装置及び空間取合設計を容易にしたプラズマ
発生装置における真空容器構造を得ることができる。Therefore, no force that deforms the vacuum container is applied near the insulator, and deformation of the vacuum container can be prevented. Further, since the electromagnetic force acting on the entire vacuum vessel is connected by the key structure, it is canceled within the vacuum vessel and no force is transmitted to the outside. Therefore, if such a vacuum vessel structure is adopted for the vacuum vessel of a plasma test equipment or nuclear fusion device, the space given to the rib structure adopted in the conventional vacuum vessel structure can be saved, and the aspect ratio (plasma main radius This makes it possible to design and manufacture vacuum vessels for tokamak-type fusion devices, which have particularly strict dimensions with pond equipment and require the dimensions of each equipment to be as small as possible. This makes the device extremely advantageous.
・The structure of the present invention eliminates the need for the support structure conventionally used to support the vacuum container, resulting in a structure with more space. This makes it possible to secure more space for plasma measurement boats, etc., making the device easier to measure.Furthermore, since the connection part of the thick wall part of the vacuum vessel has a key structure, the connection part is strong. As is clear from the above description, according to the present invention, the electromagnetic forces generated within the vacuum container are mutually canceled out within the vacuum container, thereby preventing deformation of the thick portion of the vacuum container. Therefore, it is possible to obtain a vacuum vessel structure in a plasma generating device that eliminates the rib structure and support structure of the thick wall portion of the vacuum vessel, and facilitates the device and space arrangement design.
第１図は従来の真空容器を示す斜視説明図ト第２図は真
空容器厚肉部断面における電磁力分布を示す説明図、第
３図は真空容器厚肉部の端部のリブ構造の例を示す縦断
面説明図、第４図はこの発明の一実施例に係る真空容器
を示す斜視説明図、第５図は真空容器のべローズ接続部
を示す縦断面図、及び第６図は厚肉部の接続構造を示す
縦断面である。
１１・肌”真空容器、１２，１２′・・・・・・厚肉部
、１３……べ。
ーズ、１４，１４′・・…・接続端面、竃６，１６′…
…接続部、亀７・…・・ボルト、１８・・・・・・絶縁
物、１９…・・・絶縁カラー。第１図第２図
第３図
第４図
第５図
第６図Fig. 1 is a perspective explanatory diagram showing a conventional vacuum vessel; Fig. 2 is an explanatory diagram showing the electromagnetic force distribution in a cross section of the thick wall part of the vacuum vessel; and Fig. 3 is an example of the rib structure at the end of the thick wall part of the vacuum vessel. 4 is a perspective explanatory view showing a vacuum container according to an embodiment of the present invention, FIG. 5 is a longitudinal sectional view showing a bellows connection part of the vacuum container, and FIG. It is a longitudinal section showing the connection structure of the meat part. 11. Skin" vacuum container, 12, 12'... Thick walled part, 13... Bead, 14, 14'... Connection end surface, 6, 16'...
...Connection part, Tortoise 7...Bolt, 18...Insulator, 19...Insulation collar. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6
Claims (1)
して環状に形成した真空容器において、ベローズ若しく
は絶縁物をはさんで対向する厚肉部の接続端部の少なく
とも一方の外方部分をベローズ若しくは絶縁物の外側に
おいて環状方向に延長させ、真空容器壁にほぼ垂直な面
内で他方の接続端部の外方部分に絶縁物を介しキー構造
により接続して成ることを特徴とするプラズマ発生装置
における真空容器構造。1. In a vacuum vessel formed into an annular shape by connecting a thick walled part of the vacuum vessel and a bellows or an insulating material, at least one outer part of the connection end of the thick walled part facing each other with the bellows or insulating material in between is connected to a bellows or an insulating material. Alternatively, plasma generation characterized by extending in an annular direction on the outside of the insulator and connecting to the outer part of the other connection end in a plane substantially perpendicular to the wall of the vacuum chamber through the insulator with a key structure. Vacuum vessel structure in the device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53112299A JPS6022756B2 (en) | 1978-09-14 | 1978-09-14 | Vacuum vessel structure in plasma generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53112299A JPS6022756B2 (en) | 1978-09-14 | 1978-09-14 | Vacuum vessel structure in plasma generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5539147A JPS5539147A (en) | 1980-03-18 |
| JPS6022756B2 true JPS6022756B2 (en) | 1985-06-04 |
Family
ID=14583198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53112299A Expired JPS6022756B2 (en) | 1978-09-14 | 1978-09-14 | Vacuum vessel structure in plasma generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022756B2 (en) |
-
1978
- 1978-09-14 JP JP53112299A patent/JPS6022756B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5539147A (en) | 1980-03-18 |
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