JPH0426314A - Formation of electrical penetration through wall - Google Patents

Formation of electrical penetration through wall

Info

Publication number
JPH0426314A
JPH0426314A JP2131060A JP13106090A JPH0426314A JP H0426314 A JPH0426314 A JP H0426314A JP 2131060 A JP2131060 A JP 2131060A JP 13106090 A JP13106090 A JP 13106090A JP H0426314 A JPH0426314 A JP H0426314A
Authority
JP
Japan
Prior art keywords
wall
welding
cable
pipe
penetrating
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
Application number
JP2131060A
Other languages
Japanese (ja)
Inventor
Fumihiko Yoshimura
文彦 吉村
Akitoshi Nakagawa
中川　朗利
Toshikazu Edajima
枝嶋　敏数
Isao Yoshinaga
功夫 好永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Sumitomo Electric Industries Ltd
Original Assignee
Mitsubishi Electric Corp
Sumitomo Electric Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp, Sumitomo Electric Industries Ltd filed Critical Mitsubishi Electric Corp
Priority to JP2131060A priority Critical patent/JPH0426314A/en
Publication of JPH0426314A publication Critical patent/JPH0426314A/en
Pending legal-status Critical Current

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)

Abstract

PURPOSE:To enable a cable which is positioned at an inside to be protected by a related pipe and a wall penetration sleeve and an edge plate to be welded by mounting a welding protecting pipe concentrically with the wall penetration sleeve at an edge part of a cable tray which is placed within the wall penetration sleeve. CONSTITUTION:A welding protection pipe 9 is formed concentrically in one piece so that it may be positioned at a lower part of a welded part 6 through a support 9a at an edge part of a cable tray 8 previously. Since the above cable tray 8 is set into a wall penetration sleeve 2 so that the center is matched by a supporting tool, the pipe 9 is positioned concentrically with the wall penetration sleeve 2 by placing the welding protection pipe 9 concentrically with the cable tray 8. Thus, a cable 7 can be protected from flame and heat due to welding by providing a welding protection pipe within the welded part 6.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明は原子力発電所における原子炉格納容器等の壁貫
通電気バネトレーン１ノの形成方法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for forming a wall-penetrating electric spring train 1 in a nuclear reactor containment vessel or the like in a nuclear power plant.

（従来の技術及び解決しようとする課題）原子炉格納容
器等の壁貫通電気ペネトレーン蜂ンを第１図を参照して
説明する。(Prior Art and Problems to Be Solved) A penetrating electric penetrain through the wall of a nuclear reactor containment vessel will be explained with reference to FIG.

格納容器壁（１）の壁貫通部に、これを貫通して壁貫通
スリーブ（２）が一体に設けられており、上記壁貫通ス
リーブ（２）の格納容器壁（１）の外側の端部に、端板
（３）がその円筒状のフランジ部（３ａ）を溶接（６）
することにより取付けられている。上記壁貫通スリーブ
（２）内にはケーブル（７）を収納するためのケーブル
トレイ（８）が壁貫通スリーブ（２）内に、端板の貫通
部に合わせて配置されており、前記端板（３）の貫通部
には０リングシール（５）を介してケーブル壁貫通モジ
ュール（４）が気密に設けられている。A wall penetrating sleeve (2) is integrally provided at the wall penetrating portion of the containment vessel wall (1), and the wall penetrating sleeve (2) has an outer end of the containment vessel wall (1). The end plate (3) has its cylindrical flange (3a) welded (6).
It is installed by A cable tray (8) for accommodating the cable (7) is arranged in the wall penetrating sleeve (2) in alignment with the penetrating portion of the end plate, and A cable wall penetration module (4) is airtightly installed in the penetration part (3) via an O-ring seal (5).

このような壁貫通電気ペネトレーションにおいて、壁貫
通スリーブ（２）と端板（３）の溶接時、溶接トーチの
炎が２０〜３ｈｍの長さにわたって内部に入ることがあ
り、この部分に位置するケーブル（７）の表面が上記溶
接炎にさらされ、損傷を受けるという問題があった。In such wall-penetrating electrical penetration, when welding the wall-penetrating sleeve (2) and the end plate (3), the flame of the welding torch may enter the interior over a length of 20 to 3 hm, and the cable located in this part may be There was a problem that the surface of (7) was exposed to the welding flame and was damaged.

（課題を解決するための手段） 本発明は上述の問題点を解消した壁貫通電気ベネトレー
シＪンの形成方法を提供するもので、その特徴は、壁貫
通スリーブ内に配置するケーブルトレイの端部に壁貫通
スリーブと同心状に溶接保護パイプを取付け、該パイプ
によりその内部に位置するケーブルを保護して壁貫通ス
リーブと端板の溶接を行なうことにある。(Means for Solving the Problems) The present invention provides a method for forming a wall-penetrating electrical cable tray that eliminates the above-mentioned problems, and is characterized by the fact that the ends of the cable tray disposed within the wall-penetrating sleeve are A welding protection pipe is installed concentrically with the wall penetrating sleeve, and the cable located inside the pipe is protected by the welding protection pipe, and the wall penetrating sleeve and the end plate are welded.

（実施例） 第１図は本発明の方法により形成された壁貫通電気ベネ
トレーシ式ンの縦断面図である。(Example) FIG. 1 is a longitudinal cross-sectional view of a through-wall electric Benetrace type bone formed by the method of the present invention.

壁貫通電気ペネトレーンヨンの形成にあたっては、あら
かじめケーブルトレイ（８）の端部に支持体（９ａ）を
介して溶接保護パイプ（９）が溶接部（６）の下方に位
置するように同心状に一体化しておく。上記ケーブルト
レイ（８）は支持治具により壁貫通スリーブ（２）内に
その中心を合せてセットされるため、溶接保護パイプ（
９）をケーブルトレイ（８）と同心状に一体化しておく
ことによりパイプ（９）は壁貫通スリーブ（２）と同心
状に位置することになる。このように溶接部（６）の内
部に溶接保護パイプを設けることにより、溶接の炎、熱
からケーブル（７）を保護することが出来る。In forming the wall-penetrating electric penetration lane, welded protection pipes (9) are placed concentrically in advance at the ends of the cable trays (8) via supports (9a) so that they are positioned below the welded parts (6). be integrated into. Since the cable tray (8) is set with its center aligned inside the wall penetrating sleeve (2) using a support jig, the welded protection pipe (
By concentrically integrating the pipe (9) with the cable tray (8), the pipe (9) is located concentrically with the wall-through sleeve (2). By providing the welding protection pipe inside the welding part (6) in this way, the cable (7) can be protected from the flame and heat of welding.

溶接部（６）とケーブル（７）の隙間は最小約ｌＯ腸謬
と僅かであるため、厚いパイプを使用することは困難で
、厚さ約２〜３ｍｍ稈度の薄いパイプを使用する。この
ように厚さか薄く、かつケーブル表面を保護する効果が
必要であるが、実験の結果では、ステンレスが耐炎性及
び熱伝導性等の面から最も適当である。又パイプの長さ
は片側Ｈｍｍ（全長１２０ｍｍ）あれば充分保護効果が
あることが判った。Since the gap between the welded part (6) and the cable (7) is as small as a minimum of about 10 mm, it is difficult to use a thick pipe, and a thin pipe with a thickness of about 2 to 3 mm and a culm is used. As described above, it is necessary to be thin and have the effect of protecting the cable surface, but according to the results of experiments, stainless steel is the most suitable in terms of flame resistance and thermal conductivity. It was also found that a pipe length of Hmm on one side (total length 120mm) would provide sufficient protection.

溶接保護パイプ（９１を所定位置に固定する方法として
、壁貫通スリーブ（２）や端板（３）に固定する方法も
あるが、溶接部（６）の超音波検査を行なう場合に、散
乱、エコー等のエラーの原因となるので好ましくない。There is also a method of fixing the weld protection pipe (91) in a predetermined position by fixing it to the wall penetrating sleeve (2) or the end plate (3), but when performing an ultrasonic inspection of the weld (6), scattering This is not preferable because it causes errors such as echo.

（発明の効果） 以上説明したように、本発明の壁貫通電気ベネトレーン
日ンの形成方法によれば、溶接部内部に溶接保護パイプ
を設けることにより、溶接時の炎、熱からケーブルを保
護することが出来、電気ペネトレー／ｌｌンの信頼性が
向上する。(Effects of the Invention) As explained above, according to the method for forming a wall-penetrating electric Benetrene sun of the present invention, by providing a weld protection pipe inside the welding part, the cable is protected from flame and heat during welding. This improves the reliability of the electric penetration tray.

又ケーブルトレイに溶接保護パイプを取付けることによ
り簡単に所定位置にセットすることか出来、かつ溶接後
の検査に悪影響を与えることがない。Furthermore, by attaching the welding protection pipe to the cable tray, it can be easily set in a predetermined position, and inspection after welding will not be adversely affected.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の方法により形成された壁貫通電気ベネ
トレーシ２ンの縦断面図である。 １・・・格納容器壁、２・・・壁貫通スリーブ、３・・
・端板、４・・・壁貫通モジュール、５・・・０リング
／−ル、６・・・溶接部、７・・・ケーブル、８・・・
ケーブルトレイ、９・・・溶接保護パイプ。 ｂ。FIG. 1 is a longitudinal cross-sectional view of a through-wall electrical Benetrace 2 formed by the method of the present invention. 1... Containment vessel wall, 2... Wall penetrating sleeve, 3...
・End plate, 4... Wall penetration module, 5... 0 ring/-le, 6... Welded part, 7... Cable, 8...
Cable tray, 9...welding protection pipe. b.

Claims (1)

【特許請求の範囲】[Claims] （１）壁貫通部に一体に設けた壁貫通スリーブの一端に
端板を溶接により取付け、端板の貫通部にケーブル貫通
部モジュールを気密に設けた壁貫通電気ペネトレーショ
ンにおいて、前記壁貫通スリーブ内に配置するケーブル
トレイの端部に壁貫通スリーブと同心状に溶接保護パイ
プを取付け、該パイプによりその内部に位置するケーブ
ルを保護して壁貫通スリーブと端板の溶接を行なうこと
を特徴とする壁貫通電気ペネトレーションの形成方法。(1) In a wall-penetrating electrical penetration in which an end plate is attached by welding to one end of a wall-penetrating sleeve provided integrally with the wall-penetrating portion, and a cable-penetrating portion module is airtightly provided in the penetrating portion of the end plate, the interior of the wall-penetrating sleeve is A welding protection pipe is installed concentrically with the wall-penetrating sleeve at the end of the cable tray disposed in the cable tray, and the welding of the wall-penetrating sleeve and the end plate is performed while protecting the cables located inside the pipe. How to create through-wall electrical penetration.
JP2131060A 1990-05-21 1990-05-21 Formation of electrical penetration through wall Pending JPH0426314A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2131060A JPH0426314A (en) 1990-05-21 1990-05-21 Formation of electrical penetration through wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2131060A JPH0426314A (en) 1990-05-21 1990-05-21 Formation of electrical penetration through wall

Publications (1)

Publication Number Publication Date
JPH0426314A true JPH0426314A (en) 1992-01-29

Family

ID=15049069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2131060A Pending JPH0426314A (en) 1990-05-21 1990-05-21 Formation of electrical penetration through wall

Country Status (1)

Country Link
JP (1) JPH0426314A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102768867A (en) * 2012-07-18 2012-11-07 安徽省鑫源达有色金属材料有限公司 Electrical penetration piece with ceramic sealing electrode
CN104488033A (en) * 2012-04-17 2015-04-01 巴布科克和威尔科克斯M能量股份有限公司 Electrical feedthroughs for nuclear reactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104488033A (en) * 2012-04-17 2015-04-01 巴布科克和威尔科克斯M能量股份有限公司 Electrical feedthroughs for nuclear reactor
CN102768867A (en) * 2012-07-18 2012-11-07 安徽省鑫源达有色金属材料有限公司 Electrical penetration piece with ceramic sealing electrode

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