JPS5810099U - Shipper cap for detecting damaged fuel - Google Patents

Shipper cap for detecting damaged fuel

Info

Publication number
JPS5810099U
JPS5810099U JP1981103994U JP10399481U JPS5810099U JP S5810099 U JPS5810099 U JP S5810099U JP 1981103994 U JP1981103994 U JP 1981103994U JP 10399481 U JP10399481 U JP 10399481U JP S5810099 U JPS5810099 U JP S5810099U
Authority
JP
Japan
Prior art keywords
coolant
fuel
fuel assembly
cap
zipper
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
JP1981103994U
Other languages
Japanese (ja)
Inventor
石崎　英昭
鈴村　武
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP1981103994U priority Critical patent/JPS5810099U/en
Publication of JPS5810099U publication Critical patent/JPS5810099U/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
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

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

第１図は従来のジッパ−ギャップを用いた破損燃料検出
装置の系統図、第２図はアイソレーション破認機構を備
えたジッパ−キャップを用いた破損燃料検出装置の系統
図、第３図はアイソレーション呻認機構を備えたジッパ
−キャップの構造図、第４図は着座確認機構の構成断面
図である。 １・・・燃料集合体、２・・・チャンネルボックス、３
・・・ジッパ−キャップ、４・・・ナラターキャップ、
５・・・インナーキャップ、６・・・採水管、７・・・
空気供給管、１０・・・ポンプ、１６・・・上部格子、
１７・・・アイソレーション確認機構、１８・・・表示
ランプ、１９・・・電極棒。Fig. 1 is a system diagram of a damaged fuel detection device using a conventional zipper gap, Fig. 2 is a system diagram of a damaged fuel detection device using a zipper cap equipped with an isolation mechanism, and Fig. 3 is a system diagram of a damaged fuel detection device using a zipper cap equipped with an isolation mechanism. FIG. 4 is a structural diagram of a zipper cap equipped with an isolation recognition mechanism, and FIG. 4 is a sectional view of the structure of the seating confirmation mechanism. 1...Fuel assembly, 2...Channel box, 3
... Zipper cap, 4... Narrator cap,
5... Inner cap, 6... Water sampling tube, 7...
Air supply pipe, 10... pump, 16... upper grid,
17... Isolation confirmation mechanism, 18... Display lamp, 19... Electrode rod.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 冷却材中に設置された燃料集合体の上部にジッパ−キャ
ップを装着し、前記ジッパ−キャップ内に空気を送り込
むことによって、前記燃料集合体中を上昇する前記冷却
材の流れを止め、前記燃料集合体中の前記冷却材液面を
低下させ、前記燃料集合体内冷却材を周囲冷却材と隔離
し、その後ある時間保持した後、前記燃料集合体内上部
冷却材をサンプリングし、サンプリング水の放射能を測
定して、破損燃料の検出を行なう装置において、前記ジ
ッパ−キャップ内に空気を送り込み前記燃料集合体内の
前記冷却材液面を低下させる際、前記ジッパ−キャップ
に設置されたレベルスイッチで前記燃料集合体内冷却材
が周囲冷却材と隔離されたことを電気的に検知する機構
を特徴とする破損燃料検出用ジッパ−キャップ。A zipper cap is attached to the top of a fuel assembly placed in the coolant, and air is forced into the zipper cap to stop the flow of the coolant rising through the fuel assembly and remove the fuel. After lowering the coolant level in the assembly and isolating the coolant within the fuel assembly from surrounding coolant and then holding for a period of time, the upper coolant within the fuel assembly is sampled and the radioactivity of the sampled water is In an apparatus for detecting damaged fuel by measuring the amount of fuel, when air is sent into the zipper cap to lower the coolant liquid level in the fuel assembly, a level switch installed in the zipper cap detects the level of the coolant. A zipper cap for detecting damaged fuel, which features a mechanism for electrically detecting that the coolant in the fuel assembly is isolated from the surrounding coolant.
JP1981103994U 1981-07-15 1981-07-15 Shipper cap for detecting damaged fuel Pending JPS5810099U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1981103994U JPS5810099U (en) 1981-07-15 1981-07-15 Shipper cap for detecting damaged fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1981103994U JPS5810099U (en) 1981-07-15 1981-07-15 Shipper cap for detecting damaged fuel

Publications (1)

Publication Number Publication Date
JPS5810099U true JPS5810099U (en) 1983-01-22

Family

ID=29898600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1981103994U Pending JPS5810099U (en) 1981-07-15 1981-07-15 Shipper cap for detecting damaged fuel

Country Status (1)

Country Link
JP (1) JPS5810099U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169167U (en) * 1984-10-13 1986-05-12

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977094A (en) * 1972-11-29 1974-07-25

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4977094A (en) * 1972-11-29 1974-07-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6169167U (en) * 1984-10-13 1986-05-12

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