JP2684921B2 - Penetration structure of inorganic insulated cable to fixed plate for shielding - Google Patents
Penetration structure of inorganic insulated cable to fixed plate for shieldingInfo
- Publication number
- JP2684921B2 JP2684921B2 JP4113605A JP11360592A JP2684921B2 JP 2684921 B2 JP2684921 B2 JP 2684921B2 JP 4113605 A JP4113605 A JP 4113605A JP 11360592 A JP11360592 A JP 11360592A JP 2684921 B2 JP2684921 B2 JP 2684921B2
- Authority
- JP
- Japan
- Prior art keywords
- shielding
- insulated cable
- cable
- fixing plate
- inorganic insulated
- 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
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
-
- 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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【産業上の利用分野】本発明は、放射線遮蔽壁でのケー
ブル貫通部に関し、より具体的には遮蔽用固定プレート
に対する無機絶縁ケーブルの貫通固定構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable penetrating portion in a radiation shielding wall, and more particularly to a penetrating fixing structure for an inorganic insulating cable with respect to a fixing plate for shielding.
【０００２】[0002]
【従来の技術】無機絶縁ケーブルは、放射線に晒されて
も劣化しないため、原子炉格納容器を貫通するケーブル
として良く用いられているが、外被となる金属シースが
非常に薄いために、通常の金属パイプのように遮蔽プレ
ートに直接溶接にてシールするとケーブル自身に損傷を
受ける恐れがあった。2. Description of the Related Art An inorganic insulated cable is often used as a cable that penetrates a reactor containment vessel because it does not deteriorate even when exposed to radiation. However, it is usually used because a metal sheath as an outer sheath is very thin. There is a risk that the cable itself may be damaged if the shield plate is directly welded and sealed like the metal pipe of.
【０００３】そのため、遮蔽用プレートへの貫通部分に
おいて気密にシールし固定する場合には、図２に示すよ
うに、遮蔽用固定プレート２の無機絶縁ケーブル１が貫
通する抜け穴２ａの中及びその両側開口部をエポキシ系
の樹脂３で固めるか、或いは図３に示すように、無機絶
縁ケーブル１を細径の金属管４に通し、その金属管と無
機絶縁ケーブルの金属シースとを溶接し、金属管４を遮
蔽用固定プレート２に溶接していた。Therefore, when airtightly sealing and fixing at a portion penetrating the shielding plate, as shown in FIG. 2, the through hole 2a through which the inorganic insulated cable 1 of the shielding fixing plate 2 penetrates and both sides thereof. The opening is fixed with an epoxy resin 3, or as shown in FIG. 3, the inorganic insulated cable 1 is passed through a small-diameter metal pipe 4, and the metal pipe and the metal sheath of the inorganic insulated cable are welded together to form a metal. The tube 4 was welded to the fixed shield plate 2.
【０００４】[0004]
【発明が解決しようとする課題】樹脂で固めただけの構
造では、それ自体で十分なシール性能を発揮する反面、
容器内外の温度差に基づくケーブル自身の熱膨張収縮や
その他の外力で無機絶縁ケーブルに軸方向の移動力が働
いた場合、それを引き留めることができず、シール部分
に損傷を受ける恐れがあった。With a structure that is simply solidified with resin, while it exhibits sufficient sealing performance by itself,
When the axial movement force acts on the inorganic insulated cable due to the thermal expansion and contraction of the cable itself due to the temperature difference between the inside and outside of the container or other external force, it could not be retained and the seal part might be damaged. .
【０００５】また、金属管を介した溶接構造によれば、
シール及び引き留め力ともに十分なものが得られるが、
溶接するためには溶接トーチで作業するスペースを必要
とし、複数本の無機絶縁ケーブルを貫通させる場合、隣
接するケーブルの間隔が大きくなり、単位面積当りのケ
ーブル収納効率が低下するという問題が生じる。細径金
属管に対する微小な部分への気密な溶接が要求されるた
め、製作コストが上昇する難点があった。Further, according to the welded structure through the metal pipe,
Sufficient sealing and retaining force can be obtained,
A space for working with a welding torch is required for welding, and when a plurality of inorganic insulated cables are penetrated, a space between adjacent cables becomes large, which causes a problem that a cable storage efficiency per unit area decreases. Since it is required to hermetically weld a minute portion to a small-diameter metal pipe, there is a problem that the manufacturing cost increases.
【０００６】本発明は、前述した従来技術の問題点に鑑
み、薄肉の金属シースからなる無機絶縁ケーブルを遮蔽
用固定プレートの抜け穴に貫通した部分での引き留め力
が十分でシールが容易に行え、製作コストを押さえられ
るこの種のケーブル貫通構造を提供することに目的があ
る。In view of the above-mentioned problems of the prior art, the present invention has a sufficient retaining force at the portion where the inorganic insulating cable made of a thin metal sheath penetrates through the through hole of the shielding fixing plate and can be easily sealed. It is an object to provide a cable penetrating structure of this type that can be manufactured at low cost.
【０００７】[0007]
【課題を解決するための手段】本発明による解決手段
は、リークモニター空間の前後一方に設けられる一次遮
蔽用固定プレートを貫通する無機絶縁ケーブルの金属シ
ース上に固定用金属リングがロー付け一体化されている
とともに、前記一次遮蔽用固定プレートには、リークモ
ニター空間の側からリークモニター空間外にに貫通して
いて、リークモニター空間の側に前記無機絶縁ケーブル
を貫通させる抜け穴を形成し、リークモニター空間外の
側に拡大された穴を形成し、この拡大された穴と前記抜
け穴との間に段部を形成しており、前記固定用金属リン
グがリークモニター外から前記拡大された穴の中に装填
され且つ段部に押し付けられた状態で外部からナットに
より締め付け固定されたこととしたものである。The solution according to the present invention is a metal ring for fixing on a metal sheath of an inorganic insulated cable which penetrates a fixing plate for primary shielding provided on one side of the leak monitor space. Is integrated by brazing, and the primary shield fixing plate has a leak module.
From the side of the niter space to the outside of the leak monitor space
And the inorganic insulated cable on the side of the leak monitor space.
A through hole that penetrates the
Form an enlarged hole on the side, and
A step is formed between the hole and the fixing hole, and the fixing metal ring is loaded into the enlarged hole from outside the leak monitor and is pressed against the step from the outside to the nut.
It was decided to be more tightly fixed .
【０００８】[0008]
【実施例】図１は、本発明の好ましい一実施例を示した
ものである。本実施例の構造は、高速増殖炉（ＦＢＲ）
の気密貫通部に適用できる。DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 shows a preferred embodiment of the present invention. The structure of this embodiment is a fast breeder reactor (FBR).
It can be applied to the airtight penetration part.
【０００９】無機絶縁ケーブル１は、リークモニター空
間８の前後に設けられた鋼板またはステンレス鋼板製の
一次遮蔽用固定プレート２と二次遮蔽用固定プレート
２′を貫通し、一次側の遮蔽用固定プレート２において
本発明の構造が適用されているThe inorganic insulated cable 1 penetrates through a steel plate or stainless steel plate primary shield fixing plate 2 and a secondary shield fixing plate 2'provided in front of and behind the leak monitor space 8 to fix the primary side shield. The structure of the present invention is applied to the plate 2
【００１０】すなわち、無機絶縁ケーブル１の金属シー
ス上には、銅またはその合金により無垢に形成された固
定用金属リング６が銀ロー付け９により一体化されてお
り、一方の一次遮蔽用固定プレート２には、リークモニ
ター空間８の側において無機絶縁ケーブル１貫通させる
抜け穴２ａを形成し、一方のリークモニター空間外の側
に拡大された穴２ｃを形成し、この拡大された穴２ｃと
前記抜け穴２ａとの間に段部２ｂを形成しており、なお
また、拡大された穴２ｃの開口側でねじ加工されてい
る。無機絶縁ケーブル１には、予め中空のナット５が通
されている。That is, on the metal sheath of the inorganic insulated cable 1, a fixing metal ring 6 made of pure copper or its alloy is integrated by silver brazing 9, and one fixing plate for primary shielding is provided. 2 is Leakmoni
The inorganic insulated cable 1 is passed through on the side of the target space 8.
Forming the through hole 2a, one side outside the leak monitor space
The enlarged hole 2c is formed in the
A step portion 2b is formed between the through hole 2a and
Further , screwing is performed on the opening side of the enlarged hole 2c. A hollow nut 5 is passed through the inorganic insulated cable 1 in advance.
【００１１】しかして、固定用金属リング６は、無機絶
縁ケーブル１の抜け穴２ａへの貫通とともに拡大された
穴２ｃの中に装填され、一方の側面が段部２ｂに押し付
けられる。Then, the fixing metal ring 6 is loaded into the hole 2c enlarged as the inorganic insulating cable 1 penetrates the through hole 2a, and one side surface thereof is pressed against the step portion 2b.
【００１２】段部２ｂ及びそれに押し付けられる固定用
金属リング６の側面は、テーパが付与されていて、段部
２ｂとの金属接触による一次シールを形成できるように
してある。無機絶縁ケーブルに通されたナット５を拡大
された穴２ｃのねじ加工部に捩じ込んで締め付けること
で、無機絶縁ケーブル１の一次遮蔽用固定プレート２に
対する固定が図られているとともに、かかる段部２ｂと
固定用金属リング６との金属接触シールをより確実にし
てある。[0012] step portion 2b and the side surface of the fixed metal ring 6 is pressed against thereto, taper have been granted, step portion
The primary seal can be formed by metal contact with 2b . By fixing the nut 5 passed through the inorganic insulated cable to the threaded portion of the enlarged hole 2c by tightening it, the inorganic insulated cable 1 is fixed to the primary shielding fixing plate 2 and the step The metal contact seal between the portion 2b and the fixing metal ring 6 is made more reliable.
【００１３】上記のようにして無機絶縁ケーブル１を貫
通固定した一次遮蔽用固定プレート２には、その両面か
らエポキシ系の樹能３，３が注型され、その注型樹脂
３，３は抜け穴２ａ内のケーブル貫通部分の隙間とその
開口部を塞ぐとともに、ナット５の外表面及びその中空
部内の隙間も塞ぎ、もってケーブル貫通部に対する最終
シールを形成している。Epoxy resin 3,3 is cast from both sides of the primary shielding fixing plate 2 through which the inorganic insulated cable 1 is fixed through as described above, and the casting resins 3,3 are through holes. The gap between the cable penetrating portion in 2a and the opening thereof are closed, and the gap on the outer surface of the nut 5 and the hollow portion thereof is also closed, thereby forming a final seal for the cable penetrating portion.
【００１４】本実施例では、かかる一次遮蔽用固定プレ
ート２の外側でリークモニター空間８を設けるため、二
次遮蔽用固定プレート２′が設けられている。この二次
遮蔽用固定プレート２′の抜け穴には、パッキング７が
圧入されて二次的なシールが図られ、さらにプレートの
両面から樹胞３，３が注型されて最終のシールが形成さ
れている。[0014] In this embodiment, to provide a leak monitor space 8 outside of such primary shielding fixed pre <br/> over preparative 2, the fixed plate 2 'is provided for a secondary shield. A packing 7 is press-fitted into the through hole of the secondary shield fixing plate 2'to provide a secondary seal, and further, the resin 3, 3 is cast from both sides of the plate to form a final seal. ing.
【００１５】かかる一次遮蔽用固定プレート２と二次遮
蔽用固定プレート２′は、筒状の箱の両側の開口を塞
ぎ、もって閉鎖されたモニター空間８を設定している。
この空間の圧力を監視すれば、漏洩の有無をチェックで
きる。The primary shield fixing plate 2 and the secondary shield fixing plate 2'close the openings on both sides of the cylindrical box, thereby setting a closed monitor space 8.
The pressure in this space can be monitored to check for leaks.
【００１６】図では、便宜上１本の無機絶縁ケーブル１
のみについて示したが、実際には遮蔽用固定プレート
２，２′に多数の抜け穴が蜂の巣状に穿たれ、その各々
に無機絶縁ケーブルが貫通され、前述した気密シール・
固定が図られる。そのシール・固定は、従来の溶接によ
る場合よりも作業半径を小さくでき、従って、単位面積
当りのケーブル収納効率を向上して高密度の配線を可能
にする。In the figure, one inorganic insulated cable 1 is shown for convenience.
However, in actuality, a large number of through holes were made in the fixing plates 2 and 2'for shielding in the shape of a honeycomb, and an inorganic insulated cable was pierced through each of them, and the above-mentioned airtight seal
It is fixed. The sealing and fixing can make the working radius smaller than in the case of the conventional welding, thus improving the cable storage efficiency per unit area and enabling high-density wiring.
【００１７】[0017]
【発明の作用・効果】以上説明したように、本発明の遮
蔽用固定プレートに対する無機絶縁ケーブの貫通構造に
よれば、無機絶縁ケーブルの金属シース上にロー付け一
体化された固定用金属リングを遮蔽用固定用プレートの
抜け穴の拡大された穴に装填し同穴に連なる段部に押し
付けるようにしたため、ケーブルに対する引き留めを十
分なものにでき、シールも簡単に形成できる。また、前
記の構造を得るのにさほど熟練した難しい作業を必要と
せず、製作コストの低減が図れる。As described above, according to the penetrating structure of the inorganic insulating cable for the shielding fixing plate of the present invention, the fixing metal ring brazed and integrated on the metal sheath of the inorganic insulating cable is provided. Since the shield fixing plate is loaded into the enlarged hole of the through hole and pressed against the step portion connected to the hole, the cable can be sufficiently retained and the seal can be easily formed. Further, it does not require much skilled work to obtain the above structure, and the manufacturing cost can be reduced.
【００１８】さらに、本発明の貫通構造によれば、従来
の溶接方式に比べて高密度の実装が可能となる。因み
に、１６Ｂ配管に対して８ｍｍ２ＭＩケーブルを４５０
本収納可能。Further, according to the penetrating structure of the present invention, high-density mounting can be performed as compared with the conventional welding method. By the way, 8mm 2 MI cable for 16B piping is 450
Can store books.
【００１９】なおまた、本発明の貫通構造によれば、無
機絶縁ケーブルに損傷を与えるポテンシャルがなく、気
密に対する信頼性が向上でき、また、無機絶縁ケーブル
を一点で強固に固定できるため、熱膨張、収縮時の拳動
を解析するのが容易である。Further, according to the penetrating structure of the present invention, there is no potential for damaging the inorganic insulated cable, the reliability against airtightness can be improved, and the inorganic insulated cable can be firmly fixed at one point, so that the thermal expansion can be achieved. , It is easy to analyze fist movements during contraction.
【図面の簡単な説明】[Brief description of the drawings]
【図１】本発明の遮蔽用固定プレートに対する無機絶縁
ケーブルの貫通構造の一実施例を示す断面的説明図。FIG. 1 is a cross-sectional explanatory view showing an example of a penetrating structure of an inorganic insulated cable for a shielding fixing plate of the present invention.
【図２】従来の遮蔽用固定プレートに対する無機絶縁ケ
ーブルの貫通構造の例を示す断面的説明図。FIG. 2 is a cross-sectional explanatory view showing an example of a penetrating structure of an inorganic insulated cable with respect to a conventional shielding fixing plate.
【図３】従来の遮蔽用固定プレートに対する無機絶縁ケ
ーブルの貫通構造の他の例を示す断面的説明図。FIG. 3 is a cross-sectional explanatory view showing another example of the penetration structure of the inorganic insulated cable with respect to the conventional shielding fixing plate.
１ 無機絶縁ケーブル ２ 一次遮蔽用固定プレート ２ａ 抜け穴 ２ｂ 段部 ２ｃ 拡大された穴 ２′ 二次遮蔽用固定プレート ３ 注型樹脂 ５ ナット ６ 固定用金属リング ７ パッキング ８ リークモニター用空間 1 inorganic insulated cable 2 primary shield fixing plate 2a through hole 2b step 2c enlarged hole 2'secondary shield fixing plate 3 casting resin 5 nut 6 fixing metal ring 7 packing 8 leak monitor space
フロントページの続き (72)発明者 夏井 幸雄 茨城県日立市日高町５丁目１番１号 日 立電線株式会社日高工場内 (72)発明者 井上 政一 茨城県日立市日高町５丁目１番１号 日 立電線株式会社日高工場内 (56)参考文献 特開 昭59−6712（ＪＰ，Ａ) 特開 昭50−9792（ＪＰ，Ａ) 特開 昭61−132022（ＪＰ，Ａ) 実開 平２−48672（ＪＰ，Ｕ) 実開 昭57−83498（ＪＰ，Ｕ) 実公 昭53−7437（ＪＰ，Ｙ２)Front Page Continuation (72) Inventor Yukio Natsui 5-1-1 Hidakacho, Hitachi City, Ibaraki Prefecture Hidaka Electric Cable Co., Ltd. Hidaka Factory (72) Inventor Masakazu Inoue 5-chome Hidakacho, Hitachi City, Ibaraki Prefecture No. 1-1 Hidaka Electric Cable Co., Ltd. Hidaka Factory (56) Reference JP 59-6712 (JP, A) JP 50-9792 (JP, A) JP 61-132022 (JP, A) ) Actually open 2-48672 (JP, U) Actually open 57-83498 (JP, U) Actually open 53-7437 (JP, Y2)
Claims (1)
る一次遮蔽用固定プレートを貫通する無機絶縁ケーブル
の金属シース上に固定用金属リングがロー付け一体化さ
れているとともに、前記一次遮蔽用固定プレートには、
リークモニター空間の側からリークモニター空間外にに
貫通していて、リークモニター空間の側に前記無機絶縁
ケーブルを貫通させる抜け穴を形成し、リークモニター
空間外の側に拡大された穴を形成し、この拡大された穴
と前記抜け穴との間に段部を形成しており、前記固定用
金属リングがリークモニター外から前記拡大された穴の
中に装填され且つ段部に押し付けられた状態で外部から
ナットにより締め付け固定されたことを特徴とする遮蔽
用固定プレートに対する無機絶縁ケーブルの貫通構造。1. A leak monitor is provided at one of the front and rear of the space.
The metal ring for fixing is integrally brazed on the metal sheath of the inorganic insulated cable penetrating the fixing plate for primary shielding, and the fixing plate for primary shielding is
From the leak monitor space side to outside the leak monitor space
It penetrates and the inorganic insulation is on the side of the leak monitor space.
A leak hole is formed to allow the cable to pass through, and a leak monitor
Form an enlarged hole on the side outside the space, and this enlarged hole
The stepped portion forms, from the outside in a state in which the fixing metal ring is pressed against the and stepped portion is loaded into the enlarged hole from outside the leak monitor between the loopholes and
A penetration structure for an inorganic insulated cable to a shielding fixing plate, which is tightened and fixed by a nut .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4113605A JP2684921B2 (en) | 1992-05-06 | 1992-05-06 | Penetration structure of inorganic insulated cable to fixed plate for shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4113605A JP2684921B2 (en) | 1992-05-06 | 1992-05-06 | Penetration structure of inorganic insulated cable to fixed plate for shielding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05316623A JPH05316623A (en) | 1993-11-26 |
| JP2684921B2 true JP2684921B2 (en) | 1997-12-03 |
Family
ID=14616456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4113605A Expired - Lifetime JP2684921B2 (en) | 1992-05-06 | 1992-05-06 | Penetration structure of inorganic insulated cable to fixed plate for shielding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2684921B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115148382A (en) * | 2022-06-30 | 2022-10-04 | 中国原子能科学研究院 | Electrical penetration for a pressure vessel, method of assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS565088B2 (en) * | 1973-05-15 | 1981-02-03 | ||
| JPS537437U (en) * | 1976-07-05 | 1978-01-23 | ||
| JPS645954Y2 (en) * | 1980-11-10 | 1989-02-15 | ||
| EP0096205A1 (en) * | 1982-06-11 | 1983-12-21 | Combustion Engineering, Inc. | Nuclear containment building penetrator |
| JPS61132022A (en) * | 1984-11-30 | 1986-06-19 | 住友電気工業株式会社 | Formation of wire piercing section module |
| JPH0248672U (en) * | 1988-09-30 | 1990-04-04 |
-
1992
- 1992-05-06 JP JP4113605A patent/JP2684921B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05316623A (en) | 1993-11-26 |
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