JPH024120B2 - - Google Patents
Info
- Publication number
- JPH024120B2 JPH024120B2 JP60040519A JP4051985A JPH024120B2 JP H024120 B2 JPH024120 B2 JP H024120B2 JP 60040519 A JP60040519 A JP 60040519A JP 4051985 A JP4051985 A JP 4051985A JP H024120 B2 JPH024120 B2 JP H024120B2
- Authority
- JP
- Japan
- Prior art keywords
- support
- frame
- conductor
- launcher
- cross
- 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 - Lifetime
Links
- 239000004020 conductor Substances 0.000 description 24
- 230000004927 fusion Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- 230000005855 radiation Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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】
〔発明の技術分野〕
本発明は、核融合炉の炉心プラズマを高周波加
熱するときにプラズマと高周波電力とを結合させ
る高周波ランチヤに関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a high-frequency launcher that couples plasma and high-frequency power when performing high-frequency heating of core plasma of a nuclear fusion reactor.
（発明の技術的背景とその問題点〕
周知のように、核融合炉の炉心プラズマを高周
波加熱法で加熱するに当つては高周波電力と炉心
プラズマとを結合させる高周波ランチヤを必要と
する。この高周波ランチヤとしては、従来、第３
図に示すように構成されたものが考えられてい
る。この図は、イオンサイクロトロン共鳴でプラ
ズマを加熱する場合に用いられる高周波ランチヤ
示している。同図において、１は図中左端側が図
示しない核融合炉のプラズマ収容容器の壁を貫通
して炉心に臨むように配置される角筒状の枠体を
示している。この枠体１の炉心側に位置する開口
部は、枠体１に固定されたリターン導体２によつ
て閉塞されている。リターン導体２の前面にはプ
ラズマ収容容器壁の曲率にほぼ合致した曲率を有
する中心導体３ａ，３ｂが平行に配置されてい
る。そして、枠体１の内部にはプラズマを加熱す
るのに必要な高周波電力を伝送するための４つの
同軸線路４ａ，４ｂ，４ｃ，４ｄが破配置されて
いる。これら同軸線路４ａ，４ｂ，４ｃ，４ｄ
は、それぞれ筒状の外部導体５と、この外部導体
５内に同心的に配置された内部導体６とで構成さ
れている。各外部導体５の炉心側に位置する端部
は、リターン導体２の内面で中心導体３ａ，３ｂ
の両端部に対向する位置に気密に接続されてお
り、また各内部導体６の炉心側に位置する端部は
リターン導体２に設けられた孔７をそれぞれ通し
て対応する中心導体３ａ，３ｂの端部に接続され
ている。また、枠体１内には、この枠体１内に位
置している同軸線路４ａ，４ｂ，４ｄの支持と、
炉心からのγ線や中性子等の放射線の遮蔽とをな
す支持体８が枠体１の長手方向に沿つて複数装着
されている。これら支持体８は、通常、ステンレ
ス鋼あるいはステンレス鋼とB4Cとの混成物で構
成されている。(Technical background of the invention and its problems) As is well known, in order to heat the core plasma of a fusion reactor by the high frequency heating method, a high frequency launcher is required to combine high frequency power and the core plasma. Conventionally, as a high frequency launcher, the third
A device configured as shown in the figure is being considered. This figure shows a high-frequency launcher used when heating a plasma by ion cyclotron resonance. In the figure, reference numeral 1 designates a rectangular cylindrical frame whose left end side in the figure is arranged so as to pass through a wall of a plasma container of a fusion reactor (not shown) and face the reactor core. The opening of the frame 1 located on the core side is closed by a return conductor 2 fixed to the frame 1. On the front surface of the return conductor 2, central conductors 3a and 3b having curvatures that approximately match the curvature of the plasma container wall are arranged in parallel. Inside the frame 1, four coaxial lines 4a, 4b, 4c, and 4d for transmitting high frequency power necessary to heat the plasma are disposed. These coaxial lines 4a, 4b, 4c, 4d
Each is composed of a cylindrical outer conductor 5 and an inner conductor 6 disposed concentrically within the outer conductor 5. The end portion of each outer conductor 5 located on the core side is connected to the center conductor 3a, 3b on the inner surface of the return conductor 2.
The end of each internal conductor 6 facing the core side passes through a hole 7 provided in the return conductor 2 to connect to the corresponding center conductor 3a, 3b. connected to the end. Also, within the frame 1, support for coaxial lines 4a, 4b, 4d located within the frame 1,
A plurality of supports 8 are attached along the longitudinal direction of the frame 1 to shield radiation such as gamma rays and neutrons from the core. These supports 8 are usually made of stainless steel or a mixture of stainless steel and B 4 C.
しかしながら、上記のように構成された従来の
高周波ランチヤにあつては次のような問題があつ
た。すなわち、核融合炉の運転時等には高周波ラ
ンチヤに大きな電磁力が作用するので、この力に
耐えさせるために何等かの手段で枠体１、リター
ン導体２および同軸線路４ａ，４ｂ，４ｃ，４ｄ
な強固に支持する必要がある。また、何等かの手
段で枠体１内を通しての放射線の漏れを防止する
必要がある。このようなことから、従来の高周波
ランチヤにあつては、上述した２つの要望を満た
すために枠体１内に充填する形に前記材料で構成
された支持体８を枠体１の長手方向に複数装着し
ている。この支持体８の装着は同軸線路４ａ，４
ｂ，４ｃ，４ｄを配置した後に行なう必要があ
る。このためめ、高周波ランチヤの組立てに長時
間を要する問題があつた。また、機械的強度を確
保するには支持体８を枠体１の長手方向に複数設
置する必要があるので高周波ランチヤの重量が増
大化し、この結何、核融合炉の分解、組立てが困
難になるなどの問題があつた。 However, the conventional high frequency launcher configured as described above has the following problems. That is, during operation of a nuclear fusion reactor, a large electromagnetic force acts on the high-frequency launcher, so in order to withstand this force, the frame 1, the return conductor 2, and the coaxial lines 4a, 4b, 4c, 4d
There is a need for strong support. Furthermore, it is necessary to prevent radiation from leaking through the frame 1 by some means. For this reason, in the conventional high-frequency launcher, in order to satisfy the above-mentioned two demands, the support body 8 made of the above-mentioned material is placed in the frame body 1 in the longitudinal direction. I have multiple installed. This support 8 is attached to the coaxial lines 4a, 4.
It is necessary to perform this after placing b, 4c, and 4d. For this reason, there was a problem in that it took a long time to assemble the high frequency launcher. Furthermore, in order to ensure mechanical strength, it is necessary to install a plurality of supports 8 in the longitudinal direction of the frame 1, which increases the weight of the high-frequency launcher and makes it difficult to disassemble and assemble the fusion reactor. There were some problems.
本発明は、このような事情に鑑みてなされたも
ので、その目的とするところは、電磁力に充分耐
え得る構造であることは勿論のこと製作、組立て
の容易化および軽量化を図ることができ、核融合
炉の分解、組立ての容易化にも寄与できるプラズ
マ加熱用高周波ランチヤを提供することにある。
The present invention was made in view of the above circumstances, and its purpose is to provide a structure that can withstand electromagnetic force sufficiently, as well as to facilitate manufacturing and assembly, and to reduce the weight. An object of the present invention is to provide a high-frequency launcher for plasma heating that can contribute to facilitating the disassembly and assembly of a fusion reactor.
本発明は、電磁力に対する機械的な支持と放射
線遮蔽とをそれぞれ別部材で行なわせる考えに立
脚している。そして、電磁力に対する対策は、枠
体内に４つの同軸線路を分離するように装着さ
れ、リターン導体および上記枠体を支持するとと
もに４つの同軸線路を支持する横断面十字状の支
持体で行なわせるようにしている。なお、放射線
の遮蔽は横断面十字状の支持体と枠体との間の間
隙に液体等を収容することによつておこなわれ
る。
The present invention is based on the idea that mechanical support for electromagnetic force and radiation shielding are provided by separate members. Measures against electromagnetic force are provided by a support body that is installed in the frame so as to separate the four coaxial lines, supports the return conductor and the frame, and has a cross-shaped cross section that supports the four coaxial lines. That's what I do. Note that radiation shielding is performed by storing liquid or the like in the gap between the support body, which has a cross-shaped cross section, and the frame body.
本発明によれば、電磁力に対する機械的な支持
と放射線遮蔽とを別部材で行なわせるようにし、
しかも機械的な支持は枠体内で前記関係に装着さ
れた横断面十字状の支持体で行なわせるようにし
ている。したがつて、電磁力で変形し易いリター
ン導体は、その背面側において支持体の端面で十
字形に支持されているので変形し難く、また各同
軸線路も支持体によつて強固に支持されているの
で動き難く、さらに枠体そのものも支持体の存在
によつて変形し難いことになり、結局、高周波ラ
ンチヤ全体を電磁力に対して充分耐え得る構造に
することができる。また、組立て時には、たとえ
ば枠体内に支持体を設置した後に同軸線路を設置
すると言つた作業のし易い手順を採用できるので
組立ての容易化を図ることができる。また、横断
面十字状と言つた本質的に変形し難い形状の支持
体を使用しているので、支持体としては、それほ
ど肉厚の厚いものを必要としない。このため、高
周波ランチヤの製作、組立てをなお一層容易化で
きるとともに軽量化を実現できる。したがつて、
核融合炉の分解、組立ての容易化にも寄与でき
る。
According to the present invention, mechanical support against electromagnetic force and radiation shielding are performed by separate members,
Moreover, mechanical support is provided by supports having a cross-shaped cross section mounted in the above-mentioned relationship within the frame. Therefore, the return conductor, which is easily deformed by electromagnetic force, is not easily deformed because it is supported in a cross shape on the end face of the support on its back side, and each coaxial line is also firmly supported by the support. The frame body itself is also difficult to deform due to the presence of the support body, and as a result, the entire high frequency launcher can be made to have a structure that can sufficiently withstand electromagnetic force. Further, during assembly, an easy-to-operate procedure can be adopted, such as installing the coaxial line after installing the support in the frame, so that assembly can be facilitated. Further, since a support having a cross-shaped cross section, which is essentially difficult to deform, is used, the support does not need to be very thick. Therefore, the production and assembly of the high-frequency launcher can be made even easier, and the weight can be reduced. Therefore,
It can also contribute to facilitating the disassembly and assembly of fusion reactors.
以下、本発明の実施例を図面を参照しながら説
明する。
Embodiments of the present invention will be described below with reference to the drawings.
第１図は、本発明の一実施例に係るプラズマ加
熱用高周波ランチヤを示すもので、第３図と同一
部分は同一符号で示してある。したがつて、重複
する部分の説明は省略する。 FIG. 1 shows a high-frequency launcher for plasma heating according to an embodiment of the present invention, and the same parts as in FIG. 3 are designated by the same reference numerals. Therefore, the explanation of the overlapping parts will be omitted.
この実施例に係る高周波ランチヤは、枠体１内
に、各同軸線路４ａ，４ｂ，４ｃ，４ｄを分離す
るように横断面十字状の支持体１１を装着してい
る。この支持対１１は、ステンレス鋼板等を十字
状に溶接して形成されている。そして、支持体１
１のリターン導体２側に位置する端面は、リター
ン導体２の背面に溶接等によつて結合されてい
る。また、支持体１１の４つの辺の頂部端面は、
それぞれ枠体１の内面に溶接等によつて結合され
ている。さらに、４つの同軸線路４ａ，４ｂ，４
ｃ，４ｄは、第２図に示すように各外部導体５の
外周で支持体１１および枠体１に接する部分Ａ，
Ｂが溶接等によつて支持体１１および枠体１に結
合されており、しかも第１図に示すように整合部
１２が支持体１１に設けられた孔に挿入された状
態で支持体１１に対して溶接等で結合されてい
る。そして、支持体１１と枠体１との間の間隙に
は、たとえば水等の放射線遮蔽用の液体が充填さ
れている。なお、第１図中１３は中心導体３ａ，
３ｂの中央部とリターン導体２との間に設けられ
た支持材を示している。 In the high-frequency launcher according to this embodiment, a support 11 having a cross-shaped cross section is mounted within a frame 1 so as to separate the coaxial lines 4a, 4b, 4c, and 4d. This support pair 11 is formed by welding stainless steel plates or the like in a cross shape. And support 1
The end face of the return conductor 2 located on the return conductor 2 side is coupled to the back surface of the return conductor 2 by welding or the like. In addition, the top end surfaces of the four sides of the support body 11 are
Each of them is connected to the inner surface of the frame 1 by welding or the like. Furthermore, four coaxial lines 4a, 4b, 4
c, 4d are portions A, 4d, which are in contact with the support 11 and the frame 1 at the outer periphery of each external conductor 5, as shown in FIG.
B is connected to the support 11 and the frame 1 by welding or the like, and the matching part 12 is inserted into the hole provided in the support 11 as shown in FIG. They are connected by welding or the like. The gap between the support body 11 and the frame body 1 is filled with a radiation shielding liquid such as water. In addition, 13 in FIG. 1 indicates the center conductor 3a,
3b and the support material provided between the return conductor 2.
このような構成であると、リターン導体２は、
その背面側において支持体１１によつて十字形に
支持され、しかも外周面は枠体１の内面で支持さ
れているので、電磁力が加わつても変形し難い形
態に保持されている。また、各同軸線路４ａ，４
ｂ，４ｃ，４ｄは、支持体１１に固定されている
ので、電磁力が加わつて動き難い形態に保持され
ている。また、枠体１は、支持体１１の存在によ
つて変形し難い形態に保持されている。したがつ
て、この高周波ランチヤは電磁力に対して充分な
強度を発揮することになる。また、支持体１１
は、横断面が十字状に形成されているので、本質
的に変形し難い。このため、支持体１１の肉厚を
それほど増さなくても充分な強度性を発揮させる
ことができる。したがつて、支持体１１の製作の
容易化は勿論のこと軽量化を図ることができ、高
周波ランチヤ全体の軽量を実現できる。また、上
述した構成であると、支持体１１を装着した後で
同軸線路４ａ，４ｂ，４ｃ，４ｄを組込むと言つ
た作業のし易い手順で組立てることができ、結
局、前述した効果を発揮させることができる。 With such a configuration, the return conductor 2 is
It is supported in a cross shape by a support 11 on its back side, and its outer peripheral surface is supported by the inner surface of the frame 1, so that it is held in a form that is difficult to deform even when electromagnetic force is applied. In addition, each coaxial line 4a, 4
Since b, 4c, and 4d are fixed to the support body 11, they are held in a form where they are difficult to move due to electromagnetic force. Moreover, the frame body 1 is held in a form that is difficult to deform due to the presence of the support body 11. Therefore, this high frequency launcher exhibits sufficient strength against electromagnetic force. In addition, the support body 11
Since the cross section is formed in the shape of a cross, it is essentially difficult to deform. Therefore, sufficient strength can be exhibited without increasing the thickness of the support 11 that much. Therefore, it is possible to make the support 11 easier to manufacture and also to reduce the weight of the entire high-frequency launcher. Further, with the above-described configuration, the assembly can be performed by an easy-to-operate procedure such as installing the support body 11 and then incorporating the coaxial lines 4a, 4b, 4c, and 4d, and as a result, the above-mentioned effects can be achieved. be able to.
なお、上述した実施例では、角筒状に形成され
た枠体を用いているが、円筒状の枠体を使用する
こともできる。 In addition, although the above-mentioned embodiment uses a frame formed in the shape of a rectangular tube, a cylindrical frame can also be used.
第１図は本発明の一実施例に係るプラズマ加熱
用高周波ランチヤを一部切欠して示す斜視図、第
２図は第１図におけるＸ―Ｘ線に沿つて切断し矢
印方向に見た図、第３図は従来のプラズマ加熱用
高周波ランチヤを一部切欠して示す斜視図であ
る。
１……枠体、２……リターン導体、３ａ，３ｂ
……中心導体、４ａ，４ｂ，４ｃ，４ｄ……同軸
線路、１１……横断面十字状の支持体。
FIG. 1 is a partially cutaway perspective view of a high-frequency launcher for plasma heating according to an embodiment of the present invention, and FIG. 2 is a view taken along the line XX in FIG. 1 and viewed in the direction of the arrow. , FIG. 3 is a partially cutaway perspective view of a conventional high-frequency launcher for plasma heating. 1...Frame body, 2...Return conductor, 3a, 3b
. . . Center conductor, 4a, 4b, 4c, 4d . . . Coaxial line, 11 . . . Support with cross-shaped cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60040519A JPS61200697A (en) | 1985-03-01 | 1985-03-01 | High frequency launcher for plasma heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60040519A JPS61200697A (en) | 1985-03-01 | 1985-03-01 | High frequency launcher for plasma heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61200697A JPS61200697A (en) | 1986-09-05 |
| JPH024120B2 true JPH024120B2 (en) | 1990-01-26 |
Family
ID=12582758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60040519A Granted JPS61200697A (en) | 1985-03-01 | 1985-03-01 | High frequency launcher for plasma heating |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61200697A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2610479B2 (en) * | 1988-05-10 | 1997-05-14 | 株式会社日立製作所 | Launcher, method of manufacturing the same, and fusion device having the same |
-
1985
- 1985-03-01 JP JP60040519A patent/JPS61200697A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61200697A (en) | 1986-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3868302A (en) | Thermal shield of a nuclear reactor | |
| JPH024120B2 (en) | ||
| JPH09211163A (en) | Fuel pellet for nuclear fuel rod, fuel rod and nuclear fuel assembly | |
| US4472344A (en) | Simplified segmented magnetic coil assembly for generating a toroidal magnetic field and the method of making same | |
| KR20150076439A (en) | radioactive waste transportation AND STORAGE CONTAINER | |
| JPS6236708B2 (en) | ||
| US8787517B2 (en) | Absorber tube for BWR control rods | |
| JP2915601B2 (en) | Plasma vacuum vessel | |
| JPH07191162A (en) | Nuclear fusion device | |
| KR20150051288A (en) | Radioactive waste transportation and storage container | |
| Singleton | Thermal shield of a nuclear reactor | |
| JPS621739Y2 (en) | ||
| JP2999278B2 (en) | Structure of blanket for fusion reactor | |
| JPH07318671A (en) | Vacuum vessel for fusion reactor | |
| JP3303537B2 (en) | Vacuum container for fusion device | |
| JPS61245500A (en) | Ion cyclotron heater connection system | |
| JPS628500A (en) | High frequency heating antenna | |
| JPH07191163A (en) | Nuclear fusion device and vacuum vessel for it | |
| JPH0235276B2 (en) | ||
| JPS6059558B2 (en) | Vacuum vessel for nuclear fusion | |
| JP3356842B2 (en) | Vacuum container for fusion device | |
| JPS58167998A (en) | Radiation shield of nuclear fusion device | |
| JPS6256472B2 (en) | ||
| JPH09243768A (en) | Neutral particle incident device | |
| JPH01209699A (en) | Antenna for high frequency heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |