JPH0694864A - Port opening structure of vacuum container for nuclear fusion device - Google Patents
Port opening structure of vacuum container for nuclear fusion deviceInfo
- Publication number
- JPH0694864A JPH0694864A JP4243513A JP24351392A JPH0694864A JP H0694864 A JPH0694864 A JP H0694864A JP 4243513 A JP4243513 A JP 4243513A JP 24351392 A JP24351392 A JP 24351392A JP H0694864 A JPH0694864 A JP H0694864A
- Authority
- JP
- Japan
- Prior art keywords
- wall
- frame
- welded
- port opening
- outer frame
- 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.)
- Withdrawn
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
- Pressure Vessels And Lids Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、核融合炉のような核融
合装置においてプラズマを封じ込めるための真空容器に
関し、特に、そのポート管を接続するためのポート開口
部構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum container for confining plasma in a nuclear fusion apparatus such as a nuclear fusion reactor, and more particularly to a port opening structure for connecting a port tube of the vacuum vessel.
【０００２】[0002]
【従来の技術】核融合装置の真空容器は、トーラス型の
場合、円環状壁体を有するドーナツ形状をなし、その円
環状壁体には、複数のトロイダルコイルがトーラス中心
軸を中心として一定角度で円周方向に離間して設置され
ている。この真空容器は一般に非常に大型であるため、
装置の搬入、組立、取り外し、再設置等は、真空容器を
複数のセクタから構成し、セクタ単位で行われる。隣接
するセクタは、通常、各トロイダルコイルの両脇にある
対の円環状壁体部分の半径方向中心を通る平面に沿って
分割される。従って、隣接するトロイダルコイル間の円
環状壁体部分には、必ず分割によって生じた線（セクタ
分割線と称する）が存在する。2. Description of the Related Art In the case of a torus type vacuum vessel of a nuclear fusion device, it has a donut shape having an annular wall body. It is installed in the circumferential direction at a distance. Since this vacuum container is generally very large,
Loading, assembling, dismounting, re-installation, etc. of the apparatus are performed in units of sectors, with the vacuum container being composed of a plurality of sectors. Adjacent sectors are typically split along a plane that passes through the radial centers of the pair of toroidal wall portions flanking each toroidal coil. Therefore, a line (referred to as a sector division line) that is generated by the division is always present in the annular wall body portion between the adjacent toroidal coils.
【０００３】図１は、トロイダルコイル間のかかる円環
状壁体部分Ｐの一例を代表的に示すもので、１は薄肉二
重壁構造の真空容器の内壁、２は外壁、３はセクタ分割
線をそれぞれ表している。また、トロイダルコイル間の
円環状壁体部分Ｐには、ブランケット装入用の垂直ポー
ト４や、作業用ロボット等の出入用に供される水平ポー
ト５や、排気装置の接続等に供される図示しないポート
が形成されている。FIG. 1 typically shows an example of the annular wall portion P between the toroidal coils. Reference numeral 1 is an inner wall of a vacuum container having a thin double wall structure, 2 is an outer wall, and 3 is a sector dividing line. Respectively. Further, the annular wall portion P between the toroidal coils is used for connecting a blanket vertical port 4, a horizontal port 5 for loading and unloading a working robot, an exhaust device connection, and the like. A port not shown is formed.
【０００４】セクタ分割線３は、図示のように上述のポ
ート４、５等を横断して延びる場合の他に、ポート４、
５から外れその脇を通って延びる場合もあるが、従来の
技術に関しては前者について説明する。In addition to the case where the sector division line 3 extends across the above-mentioned ports 4, 5 etc. as shown in the figure,
Although it may extend from 5 to the side thereof, the former will be described with respect to the conventional technique.
【０００５】さて、装置の組立に際し、隣接するセクタ
Ｓ1、Ｓ2はそのセクタ分割線３に沿って溶接により互い
に接続されるが、各円環状壁体部分Ｐの両側にはトロイ
ダルコイルが存在するため、円環状壁体部分Ｐの特に半
径方向内側の部位の近辺には狭小な空間しか残されてお
らず、真空容器の内側からしか溶接施工できない。その
ため、内側からの現場溶接を可能とすべく、図２及び図
３に示すような構造が採られていた。When assembling the apparatus, the adjacent sectors S 1 and S 2 are connected to each other by welding along the sector dividing line 3, but toroidal coils are present on both sides of each annular wall portion P. Therefore, only a narrow space is left in the vicinity of the portion of the annular wall portion P on the inner side in the radial direction, and welding can be performed only from the inside of the vacuum container. Therefore, in order to enable on-site welding from the inside, the structures shown in FIGS. 2 and 3 have been adopted.
【０００６】即ち、図２は図１の円環状壁体部分Ｐをセ
クタ分割線に沿って破断して示す部分拡大斜視図、図３
は図１のＡ−Ａ線に沿う水平断面図であり、図１〜図３
から了解されるように、隣接するセクタＳ1、Ｓ2の各々
には、後述するように溶接した時に、内壁１及び外壁２
間に介在して水平ポート５を画成するように（垂直ポー
ト４の場合もほぼ同様）、同水平ポートの形状に見合っ
た矩形の枠体を構成するポート廻り厚肉部６と、この厚
肉部６の外側端面６ａに沿って延び、同様に矩形の枠体
を構成するポート台座７と、セクタ分割線３に沿って断
続的に延びるセクタ分割部ビーム８とが設けられてい
る。各セクタ分割部ビーム８は、断面がほぼＪ字形であ
り、隣接するセクタＳ1、Ｓ2を合体した時に、図３に最
も良く示すようにＵ字形となる。That is, FIG. 2 is a partially enlarged perspective view showing the annular wall portion P of FIG. 1 broken along the sector dividing line, and FIG.
1 is a horizontal sectional view taken along line AA of FIG.
As will be understood from the above, each of the adjacent sectors S 1 and S 2 has an inner wall 1 and an outer wall 2 when they are welded as described later.
A thick portion 6 around the port that forms a rectangular frame body that matches the shape of the horizontal port so that the horizontal port 5 is defined therebetween (almost the same in the case of the vertical port 4), and this thickness. A port pedestal 7 that extends along the outer end surface 6a of the flesh portion 6 and also constitutes a rectangular frame body, and a sector division portion beam 8 that extends intermittently along the sector division line 3 are provided. Each of the sector division beams 8 has a substantially J-shaped cross section, and when adjacent sectors S 1 and S 2 are united, it becomes U-shaped as best shown in FIG.
【０００７】Ｕ字形となった分割部ビーム８の底部８ａ
は外壁２側に位置していてそこから真空容器外側に露出
し、Ｕ字の開放部８ｂは内壁１側に位置していてそこか
ら真空容器内側に露出している。そして、セクタＳ1、
Ｓ2の合体状態では、この開放部８ｂには蓋板９が固着
されている。The bottom 8a of the U-shaped split beam 8
Is located on the outer wall 2 side and is exposed to the outside of the vacuum container from there, and the U-shaped opening 8b is located on the inner wall 1 side and is exposed to the inside of the vacuum container from there. And sector S 1 ,
In the combined state of S 2, the lid plate 9 is fixed to the open portion 8b.
【０００８】セクタＳ1、Ｓ2間の現場溶接を行うには、
上記蓋板９の固着前に、ほぼＪ形の２つの分割部ビーム
８の底部端（そこがセクタ分割線となる）を開放部８ｂ
側から先ず溶接してから、蓋板９を図３の位置におき、
該蓋板９をＪ形の各分割部ビーム８の頭部に溶接施工す
るものである。To perform field welding between sectors S 1 and S 2 ,
Before the lid plate 9 is fixed, the bottom ends (that are the sector dividing lines) of the two substantially J-shaped split beams 8 are opened.
First weld from the side, then put the lid plate 9 in the position of FIG.
The lid plate 9 is welded to the head of each J-shaped split beam 8.
【０００９】また、ポート廻りについては、水平ポート
５について説明すると、ポート開口部１６を画成する厚
肉部６の端面６ｂ同士がＵ字形に結合された分割部ビー
ム８の開口部８ｂ側から溶接され、また、各分割部ビー
ム８に取り付けられたポート台座７の端面７ａ同士が真
空容器外部から溶接される。Regarding the port surroundings, the horizontal port 5 will be described. From the side of the opening 8b of the split beam 8 in which the end faces 6b of the thick portion 6 defining the port opening 16 are joined in a U shape. The end faces 7a of the port pedestals 7 that are welded and attached to the respective split beam 8 are welded from the outside of the vacuum container.
【００１０】[0010]
【発明が解決しようとする課題】以上の構成によると、
ポート廻り厚肉部６もポート台座７もかなり厚肉である
ため、それ等同士を溶接するには、複雑な形状の溶接部
開先加工が必要となる。また、厚肉部６及びポート台座
７の上述の溶接後、蓋板９を厚肉部６の符号６ｃで示す
部分に溶接するためには、同様に部分６ｃの開先加工が
必要である。According to the above configuration,
Since both the thick portion 6 around the port and the port pedestal 7 are considerably thick, welding of these portions requires complicated groove welding. Further, in order to weld the cover plate 9 to the portion of the thick portion 6 indicated by reference numeral 6c after the above-described welding of the thick portion 6 and the port pedestal 7, it is necessary to similarly groove the portion 6c.
【００１１】そして、図２から諒解されるように、内壁
１及び外壁２間の溶接線がこの部分６ｃで繋がることに
なるので、二重の真空シールを確保できず、信頼性に問
題がある。また、水平ポート５に接続されるポート管
（図示せず）は、各ポート台座７のコ字形の表面７ｂに
溶接されるが、対のポート台座７の端面７ａ同士も溶接
されるため、表面７ｂ間に溶接線が存在することにな
り、これがポート管との溶接における信頼性を低下させ
ることになる。As is clear from FIG. 2, since the welding line between the inner wall 1 and the outer wall 2 is connected at this portion 6c, a double vacuum seal cannot be secured and there is a problem in reliability. . A port pipe (not shown) connected to the horizontal port 5 is welded to the U-shaped surface 7b of each port pedestal 7, but since the end surfaces 7a of the pair of port pedestals 7 are also welded to each other, There will be a weld line between 7b, which will reduce reliability in welding with the port pipe.
【００１２】従って、本発明の目的は、複雑な開先加工
の必要がなく、どの部分においても二重の真空シールを
確保でき、しかも溶接信頼性の高い核融合装置用真空容
器を提供することである。Therefore, an object of the present invention is to provide a vacuum container for a fusion device, which does not require complicated groove processing, can secure a double vacuum seal in any portion, and has high welding reliability. Is.
【００１３】[0013]
【課題を解決するための手段】上述の目的を達成するた
め、請求項１に記載の本発明によるポート開口部構造
は、円環状の内壁と、該内壁を取り囲む円環状の外壁
と、該内壁及び該外壁を貫通して形成されたポート開口
部とを有する核融合装置用真空容器において、前記ポー
ト開口部に挿入され前記内壁及び前記外壁に溶接される
外枠と、該外枠内に挿入される内枠とを備え、該外枠及
び該内枠の各々は、前記外壁側に位置して相互に端縁で
溶接される鍔部と、前記内壁側に位置して相互に離間す
る段差部とを有し、前記外枠及び前記内枠の該段差部に
蓋板を溶接接合し離間部を閉じるように構成したことを
特徴とするものである。In order to achieve the above-mentioned object, a port opening structure according to the present invention as defined in claim 1 has an annular inner wall, an annular outer wall surrounding the inner wall, and the inner wall. And a vacuum container for a fusion device having a port opening formed by penetrating the outer wall, and an outer frame inserted into the port opening and welded to the inner wall and the outer wall, and inserted into the outer frame. An outer frame, and each of the outer frame and the inner frame is a flange portion located on the outer wall side and welded to each other at an edge, and a step located on the inner wall side and separated from each other. And a cover plate is welded to the stepped portions of the outer frame and the inner frame to close the spacing portion.
【００１４】また、上述の目的を達成するため、請求項
２に記載の本発明によるポート開口部構造は、円環状の
内壁と、該内壁を取り囲む円環状の外壁とからドーナツ
状に形成されると共に、該内壁及び該外壁を半径方向に
切断するセクタ分割線に沿って複数のセクタに分割可能
であり、該セクタ分割線を横断して前記内壁及び前記外
壁に貫通形成されたポート開口部を有し、隣接するセク
タ間には該ポート開口部を除いて、Ｕ字形のセクタ分割
部ビームが、Ｕ字の開放部を前記内壁側にして設置され
ている核融合装置用真空容器において、前記ポート開口
部に挿入され前記内壁及び前記外壁に溶接される外枠
と、該外枠内に挿入される内枠とを備え、該外枠及び該
内枠の各々は、前記外壁側に位置して相互に端縁で溶接
される鍔部と、前記内壁側に位置して相互に離間する段
差部とを有し、前記外枠及び前記内枠の該段差部に蓋板
を溶接接合し離間部を閉じると共に、前記セクタ分割部
ビームのＵ字形の前記開放部にも蓋板を溶接するように
構成したことを特徴とするものである。In order to achieve the above object, the port opening structure according to the present invention as defined in claim 2 is formed in a donut shape from an annular inner wall and an annular outer wall surrounding the inner wall. At the same time, it can be divided into a plurality of sectors along a sector dividing line that cuts the inner wall and the outer wall in the radial direction, and a port opening formed penetrating the inner wall and the outer wall across the sector dividing line. In a vacuum container for a nuclear fusion device, wherein a U-shaped sector division beam is installed between adjacent sectors except for the port opening, and the U-shaped opening is installed on the inner wall side. An outer frame inserted into the port opening and welded to the inner wall and the outer wall; and an inner frame inserted into the outer frame, each of the outer frame and the inner frame being located on the outer wall side. And a collar portion that is welded to each other at the edge, A step portion located on the wall side and spaced apart from each other, a cover plate is welded to the step portions of the outer frame and the inner frame to close the spacing portion, and the U-shaped sector dividing portion beam is formed. The lid plate is also welded to the opening portion.
【００１５】[0015]
【作用】ポート管が取り付けられるポート開口部構造を
外枠及び内枠からなる中空の箱状にすると、剛性が増す
ため溶接部を厚肉にする必要がなくなり、複雑な開先加
工が不要である。また、上述の構造にすると、真空容器
の外壁側にある溶接線は外壁側だけで閉じ、内壁側にあ
る溶接線は内壁側だけで閉じるため、両方の溶接線が繋
がらないので、二重のシールが確保される。[Function] When the port opening structure to which the port pipe is attached is formed in a hollow box shape consisting of an outer frame and an inner frame, rigidity is increased, so that it is not necessary to make the welded portion thick, and complicated groove processing is unnecessary. is there. Further, with the above structure, the welding line on the outer wall side of the vacuum container is closed only on the outer wall side, and the welding line on the inner wall side is closed only on the inner wall side, so both welding lines are not connected, so a double The seal is secured.
【００１６】[0016]
【実施例】次に、本発明の好適な実施例について添付図
面を参照して詳細に説明するが、図中、同一符号は同一
又は対応部分を示すものとする。Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts.
【００１７】冒頭に述べたように、ポート開口部はセク
タ分割線を横断して設けられる場合だけでなく、セクタ
分割線を完全に外れて設けられる場合もある。本発明は
いずれの場合にも実施可能であり、各場合について以下
に説明する。As mentioned at the beginning, the port opening may be provided not only across the sector dividing line but also completely outside the sector dividing line. The present invention can be implemented in either case, and each case will be described below.
【００１８】本発明の真空容器でポート開口部１６を画
成する主要部材は、図４の(ａ)及び(ｂ)に示した矩形状
の外枠１０及び内枠１１である。外枠１０は、その一方
の開口部側に環状の鍔部１０ａを有し、他の開口部側に
後述する蓋板を装着するための環状の段差部１０ｂを有
する。また、外枠１０内に後述するように挿入される内
枠１１も、外枠１０の鍔部１０ａ及び段差部１０ｂに対
応する側に鍔部１１ａと段差部１１ｂとを有する。外枠
１０及び内枠１１の厚さ即ちその開口部の中心軸方向の
長さは実質的に等しい。The main members that define the port opening 16 in the vacuum container of the present invention are the rectangular outer frame 10 and inner frame 11 shown in FIGS. 4 (a) and 4 (b). The outer frame 10 has an annular flange portion 10a on one opening side thereof and an annular step portion 10b for mounting a lid plate described later on the other opening side. Further, the inner frame 11 inserted into the outer frame 10 as described later also has a flange portion 11a and a step portion 11b on the side corresponding to the flange portion 10a and the step portion 10b of the outer frame 10. The thicknesses of the outer frame 10 and the inner frame 11, that is, the lengths of the openings in the central axis direction are substantially equal.
【００１９】上述した外枠１０及び内枠１１は、組立状
態において、セクタ分割線を横断して取り付けられる場
合でも、セクタ分割線から外れて取り付けられる場合で
もほぼ同様に、図５に示すように、鍔部１０ａ、１１ａ
を外壁２側にし、段差部１０ｂ、１１ｂを内壁１側にし
てそれぞれポート開口部に挿入される。内壁１及び外壁
２は、外枠１０の外表面に溶接され、鍔部１０ａ、１１
ａ同士はそれ等の端縁に沿って溶接され、また、段差部
１０ｂ、１１ｂには種々の蓋板１２が溶接で取り付けら
れる。また、ポート管１３は内枠１１の鍔部１１ａの基
部に沿って取着される。In the assembled state, the outer frame 10 and the inner frame 11 described above are almost the same when they are attached across the sector dividing line or when they are attached outside the sector dividing line, as shown in FIG. , Collar parts 10a, 11a
On the outer wall 2 side and the stepped portions 10b and 11b on the inner wall 1 side, respectively. The inner wall 1 and the outer wall 2 are welded to the outer surface of the outer frame 10 to form the collar portions 10a, 11
The a's are welded to each other along their edges, and various lid plates 12 are attached to the stepped portions 10b, 11b by welding. Further, the port pipe 13 is attached along the base of the flange portion 11 a of the inner frame 11.
【００２０】上述した外枠１０及び内枠１１がセクタ分
割線を横断して装着される場合、隣接するセクタ間に
は、図２に示した従来例と同様のセクタ分割部ビーム８
が存在する。図６には片側のセクタのみを示すが、外枠
１０は左右の半部分からなっていて、両者を突き合わせ
て接合し一体化されるようになっている。そして、組み
上がった外枠１０内に上述したように内枠１１が挿入さ
れる。When the outer frame 10 and the inner frame 11 described above are mounted across the sector division line, the sector division beam 8 similar to the conventional example shown in FIG. 2 is provided between adjacent sectors.
Exists. Although only one sector is shown in FIG. 6, the outer frame 10 is composed of left and right halves, and both are butted and joined together to be integrated. Then, the inner frame 11 is inserted into the assembled outer frame 10 as described above.
【００２１】図７の（ａ）は、このようにしてポート開
口部１６で挿入された外枠１０及び内枠１１を内壁１側
から見た、蓋板取着前の図である。この状態で、外枠１
０及び内枠１１の鍔部１０ａ、１１ａは溶接線１４に沿
って内壁側から溶接される。その前に、勿論、対のセク
タ分割部ビーム８、８が溶接線１５に沿って溶接され、
また、各セクタ分割部ビーム８が外枠１０の外周面に溶
接されていてよい。その後、図７の（ｂ）に示すよう
に、セクタ分割部ビーム８、８間と、外枠１０及び内枠
１１の段差部１０ｂ、１１ｂ間の環状スペースとに、蓋
板１２ａ、１２ｂ、１２ｃが内壁側から溶接接合され
る。隣接する蓋板の端縁同士も溶接接合される。蓋板１
２ｃが蓋板１２ｂ間にあるが、Ｌ字形蓋板１２ｂの形状
を若干変更して、その一方の脚部を蓋板１２ｃの長さの
半分に相当するだけ延長すれば、蓋板１２ｃを省略する
ことができる。FIG. 7A is a view of the outer frame 10 and the inner frame 11 inserted in the port opening 16 in this way, as seen from the inner wall 1 side, before the cover plate is attached. In this state, the outer frame 1
0 and the flange portions 10a and 11a of the inner frame 11 are welded along the welding line 14 from the inner wall side. Before that, of course, the pair of sector division beams 8, 8 are welded along the weld line 15,
Further, each sector division beam 8 may be welded to the outer peripheral surface of the outer frame 10. Thereafter, as shown in FIG. 7B, the cover plates 12a, 12b, 12c are provided between the sector division beams 8 and 8 and the annular space between the step portions 10b and 11b of the outer frame 10 and the inner frame 11. Are welded from the inner wall side. The edges of adjacent lid plates are also welded to each other. Cover plate 1
2c is between the cover plates 12b, but if the shape of the L-shaped cover plate 12b is slightly changed and one of the legs is extended by half the length of the cover plate 12c, the cover plate 12c is omitted. can do.
【００２２】次に、図８の（ａ）及び（ｂ）は、ポート
管１３（図５参照）をセクタ分割線のないポート開口部
１６に装着した場合を内壁１側から見た図で、外枠１０
及び内枠１１は図４に示したものが使用される。外枠１
０及び内枠１１の装着は、図５からも諒解されるよう
に、ポート開口部１６に先ず外枠１０を挿入し、該ポー
ト開口部１６を画成する内壁１及び外壁２の環状端縁を
この外枠１０の外表面に溶接する。次に、内枠１１を外
枠１０内に挿入してから、それ等の鍔部１０ａ、１１ａ
同士を溶接線１４に沿って溶接する。この状態が図８の
（ａ）である。そして、内壁１側から、外枠１０及び内
枠１１の段差部１０ｂ、１１ｂに蓋板１２ｂ、１２ｃが
置かれ溶接接合される。この状態が図８の（ｂ）であ
る。Next, FIGS. 8A and 8B are views of the case where the port tube 13 (see FIG. 5) is attached to the port opening 16 having no sector dividing line as seen from the inner wall 1 side. Outer frame 10
As the inner frame 11, the one shown in FIG. 4 is used. Outer frame 1
As can be understood from FIG. 5, the outer frame 10 is first inserted into the port opening 16 and the annular edges of the inner wall 1 and the outer wall 2 that define the port opening 16 are attached. Are welded to the outer surface of the outer frame 10. Next, the inner frame 11 is inserted into the outer frame 10, and then the collar portions 10a, 11a thereof are inserted.
The two are welded to each other along the welding line 14. This state is shown in FIG. Then, from the inner wall 1 side, the cover plates 12b and 12c are placed on the step portions 10b and 11b of the outer frame 10 and the inner frame 11 and welded to each other. This state is shown in FIG.
【００２３】[0023]
【発明の効果】以上のように、本発明によれば、ポート
管が取り付けられるポート開口部構造を外枠及び内枠か
らなる中空の箱状にしたので、剛性が増して溶接部を厚
肉にする必要がなくなり、複雑な開先加工が不要となる
ため、作業性が向上すると共に強度上の信頼性が向上
し、また、真空容器の外壁側にある溶接線は外壁側だけ
で閉じ、内壁側にある溶接線は内壁側だけで閉じるた
め、両方の溶接線が繋がらないので、二重のシールが確
保され、真空の信頼度が向上する。更に、ポート管の接
続部に溶接線が生じないため、当該溶接部の溶接信頼性
が向上する。As described above, according to the present invention, since the port opening structure to which the port pipe is attached is formed into a hollow box-like shape including the outer frame and the inner frame, the rigidity is increased and the welded portion is thickened. Since it does not need to be complicated, and complicated groove processing is unnecessary, workability is improved and strength reliability is improved.The welding line on the outer wall side of the vacuum container is closed only on the outer wall side. Since the welding line on the inner wall side is closed only on the inner wall side, both welding lines are not connected, so a double seal is secured and the reliability of the vacuum is improved. Furthermore, since no weld line is generated at the connection portion of the port pipe, the welding reliability of the weld portion is improved.
【図１】 従来の核融合装置の真空容器におけるセクタ
分割線の両側にあるセクタを一部断面で示す斜視図であ
る。FIG. 1 is a perspective view showing a partial cross-section of sectors on both sides of a sector division line in a vacuum container of a conventional nuclear fusion device.
【図２】 図１のセクタ分割線を横断して形成されたポ
ート開口部の詳細を一部断面で示す斜視図である。FIG. 2 is a perspective view showing a partial cross-section of details of a port opening formed across the sector dividing line of FIG.
【図３】 図１のＡ−Ａ線に沿った断面図である。3 is a cross-sectional view taken along the line AA of FIG.
【図４】 (ａ)は本発明のポート開口部構造で使用する
外枠の斜視図、(ｂ)は内枠の斜視図である。4A is a perspective view of an outer frame used in the port opening structure of the present invention, and FIG. 4B is a perspective view of an inner frame.
【図５】 図４の外枠及び内枠をポート開口部に装着し
た状態の垂直断面図である。5 is a vertical cross-sectional view showing a state in which the outer frame and the inner frame of FIG. 4 are attached to the port openings.
【図６】 図４の外枠をポート開口部に装着した状態を
セクタ分割部ビームに沿って２分して示す斜視図であ
る。FIG. 6 is a perspective view showing a state in which the outer frame of FIG. 4 is attached to a port opening portion, divided into two along a sector division beam.
【図７】 (ａ)は図４の外枠及び内枠を、セクタ分割部
ビームを横断するポート開口部に装着した状態を真空容
器内壁側から見た正面図、(ｂ)は外枠及び内枠間に蓋板
を装着して示す真空容器内壁側から見た正面図である。FIG. 7A is a front view of the outer frame and the inner frame of FIG. 4 mounted on a port opening that crosses a sector division beam, as viewed from the inner wall side of the vacuum container, and FIG. It is the front view seen from the inner wall side of a vacuum container shown by attaching a cover plate between inner frames.
【図８】 (ａ)は図４の外枠及び内枠を、セクタ分割部
ビームから外れたポート開口部に装着した状態を真空容
器内壁側から見た正面図、(ｂ)は外枠及び内枠間に蓋板
を装着して示す真空容器内壁側から見た正面図である。8A is a front view of the state in which the outer frame and the inner frame shown in FIG. 4 are attached to a port opening that is separated from the sector division beam, as viewed from the inner wall side of the vacuum container, and FIG. It is the front view seen from the inner wall side of a vacuum container shown by attaching a cover plate between inner frames.
１は真空容器の内壁、２は外壁、３はセクタ分割線、４
は垂直ポート、５は水平ポート、８はセクタ分割部ビー
ム、１０は外枠、１０ａは外枠の鍔部、１０ｂは外枠の
段差部、１１は内枠、１１ａは内枠の鍔部、１１ｂは内
枠の段差部、１２ａ、１２ｂ、１２ｃは蓋板、１３はポ
ート管、１４は外枠及び内枠の溶接線、１６はポート開
口部である。1 is the inner wall of the vacuum container, 2 is the outer wall, 3 is the sector dividing line, 4
Is a vertical port, 5 is a horizontal port, 8 is a sector division beam, 10 is an outer frame, 10a is a flange part of the outer frame, 10b is a step part of the outer frame, 11 is an inner frame, 11a is a flange part of the inner frame, Reference numeral 11b is a stepped portion of the inner frame, 12a, 12b and 12c are cover plates, 13 is a port pipe, 14 is a welding line between the outer frame and the inner frame, and 16 is a port opening.
フロントページの続き (72)発明者 松岡 不識 東京都千代田区丸の内二丁目５番１号 三 菱重工業株式会社内 (72)発明者 藤田 淳哉 東京都港区芝公園二丁目４番１号 三菱原 子力工業株式会社内 (72)発明者 伊尾木 公裕 東京都港区芝公園二丁目４番１号 三菱原 子力工業株式会社内 (72)発明者 山田 政男 東京都港区芝公園二丁目４番１号 三菱原 子力工業株式会社内Front page continuation (72) Inventor Matsuoka Unfamiliar Marunouchi, 5-1, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd. (72) Inventor, Junya Fujita 2-4-1, Shiba Park, Minato-ku, Tokyo Mitsubishibara Child Power Industry Co., Ltd. (72) Inventor, Kimihiro Ioki 2-4-1, Shiba Park, Minato-ku, Tokyo Mitsubishi Hara Child-power Industry Co., Ltd. (72) Inventor Masao Yamada, 2-4 Shiba Park, Minato-ku, Tokyo No. 1 Mitsubishi Harajuku Industry Co., Ltd.
Claims (2)
状の外壁と、該内壁及び該外壁を貫通して形成されたポ
ート開口部とを有する核融合装置用真空容器において、
前記ポート開口部に挿入され前記内壁及び前記外壁に溶
接される外枠と、該外枠内に挿入される内枠とを備え、
該外枠及び該内枠の各々は、前記外壁側に位置して相互
に端縁で溶接される鍔部と、前記内壁側に位置して相互
に離間する段差部とを有し、前記外枠及び前記内枠の該
段差部に蓋板を溶接接合し離間部を閉じるように構成し
たことを特徴とする、核融合装置用真空容器のポート開
口部構造。1. A vacuum container for a nuclear fusion device having an annular inner wall, an annular outer wall surrounding the inner wall, and a port opening formed through the inner wall and the outer wall,
An outer frame inserted into the port opening and welded to the inner wall and the outer wall; and an inner frame inserted into the outer frame,
Each of the outer frame and the inner frame has a collar portion located on the outer wall side and welded to each other at an edge, and a step portion located on the inner wall side and separated from each other, the outer frame A port opening structure of a vacuum container for a nuclear fusion device, characterized in that a lid plate is welded to the frame and the stepped portion of the inner frame to close a separating portion.
状の外壁とからドーナツ状に形成されると共に、該内壁
及び該外壁を半径方向に切断するセクタ分割線に沿って
複数のセクタに分割可能であり、該セクタ分割線を横断
して前記内壁及び前記外壁に貫通形成されたポート開口
部を有し、隣接するセクタ間には該ポート開口部を除い
て、Ｕ字形のセクタ分割部ビームが、Ｕ字の開放部を前
記内壁側にして設置されている核融合装置用真空容器に
おいて、前記ポート開口部に挿入され前記内壁及び前記
外壁に溶接される外枠と、該外枠内に挿入される内枠と
を備え、該外枠及び該内枠の各々は、前記外壁側に位置
して相互に端縁で溶接される鍔部と、前記内壁側に位置
して相互に離間する段差部とを有し、前記外枠及び前記
内枠の該段差部に蓋板を溶接接合し離間部を閉じると共
に、前記セクタ分割部ビームのＵ字形の前記開放部にも
蓋板を溶接するように構成したことを特徴とする、核融
合装置用真空容器のポート開口部構造。2. An annular inner wall and an annular outer wall that surrounds the inner wall are formed in a donut shape, and a plurality of sectors are formed along a sector dividing line that radially cuts the inner wall and the outer wall. It is divisible and has a port opening penetrating through the inner wall and the outer wall across the sector dividing line, and a U-shaped sector dividing part between adjacent sectors except for the port opening. In a vacuum container for a nuclear fusion device in which a beam is installed with a U-shaped open portion on the inner wall side, an outer frame inserted into the port opening and welded to the inner wall and the outer wall, and an inner frame An inner frame to be inserted into the outer frame and the inner frame, wherein the outer frame and the inner frame are located on the outer wall side and are welded to each other at their edges. And a lid on the step portions of the outer frame and the inner frame. A port opening portion of a vacuum container for a nuclear fusion device, characterized in that the plates are welded and joined to each other to close the spacing portion, and the lid plate is also welded to the U-shaped opening portion of the sector division beam. Construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4243513A JPH0694864A (en) | 1992-09-11 | 1992-09-11 | Port opening structure of vacuum container for nuclear fusion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4243513A JPH0694864A (en) | 1992-09-11 | 1992-09-11 | Port opening structure of vacuum container for nuclear fusion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0694864A true JPH0694864A (en) | 1994-04-08 |
Family
ID=17105028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4243513A Withdrawn JPH0694864A (en) | 1992-09-11 | 1992-09-11 | Port opening structure of vacuum container for nuclear fusion device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0694864A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082344A (en) * | 1997-06-26 | 2000-07-04 | Hitachi, Ltd. | Ignition device for an internal combustion engine |
-
1992
- 1992-09-11 JP JP4243513A patent/JPH0694864A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6082344A (en) * | 1997-06-26 | 2000-07-04 | Hitachi, Ltd. | Ignition device for an internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19991130 |