JPH01142896U - - Google Patents

Info

Publication number
JPH01142896U
JPH01142896U JP1988038364U JP3836488U JPH01142896U JP H01142896 U JPH01142896 U JP H01142896U JP 1988038364 U JP1988038364 U JP 1988038364U JP 3836488 U JP3836488 U JP 3836488U JP H01142896 U JPH01142896 U JP H01142896U
Authority
JP
Japan
Prior art keywords
grid
arranged parallel
guide tubes
control rod
fuel assembly
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
JP1988038364U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1988038364U priority Critical patent/JPH01142896U/ja
Publication of JPH01142896U publication Critical patent/JPH01142896U/ja
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)

Description

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

第１図は本考案による核燃料集合体の一実施例
を示す概略説明図、第２図は本考案の核燃料集合
体に用いられる異物捕獲スクリーンの格子枠内を
示す平面図、第３図は第２図のＡ―Ａ線に沿つて
の断面図、第４図は他の実施例の異物捕獲スクリ
ーンを示す第２図と同様な平面図、第５図は第４
図のＢ―Ｂ線に沿つての断面図、第６図は一般的
な核燃料集合体の正面図、第７図は第６図のＰ―
Ｐ線に沿つての断面図、第８図は従来の核燃料集
合体の下部を示す拡大図である。図中、 １……燃料棒、２′……最下部の支持グリツド
（最下部グリツド）、５……下部ノズル、１０…
…異物捕獲スクリーン、１１……薄板、１２……
格子枠、１３……突起（流路制限部材）、１４…
…ベーン（流路制限部材）、Ｇ１，Ｇ２……異物
。 FIG. 1 is a schematic explanatory diagram showing an embodiment of the nuclear fuel assembly according to the present invention, FIG. 2 is a sectional view taken along the line A-A in FIG. 2, FIG. 4 is a plan view similar to FIG. 2 showing a foreign matter capture screen of another embodiment, and FIG.
6 is a front view of a typical nuclear fuel assembly, and FIG. 7 is a cross-sectional view taken along line B-B in the figure.
A sectional view taken along line P, and FIG. 8 is an enlarged view showing the lower part of a conventional nuclear fuel assembly. In the figure, 1...fuel rod, 2'...lowest support grid (lowest grid), 5...lower nozzle, 10...
...Foreign object capture screen, 11...Thin plate, 12...
Lattice frame, 13...Protrusion (flow path restriction member), 14...
... Vane (flow path restriction member), G 1 , G 2 ... Foreign matter.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 下部ノズルと、上部ノズルと、前記両ノズル間
を連絡すると共に相互に平行に配置された複数の
制御棒案内管と、該制御棒案内管にその長手方向
に適宜間隔を置いて固定された支持グリツドと、
該支持グリツドの各開口に挿通支持され相互に平
行に配置された複数の燃料棒とを備える核燃料集
合体において、複数の薄板を互いに直交して組み
合わせて格子枠を複数画成すると共に該格子枠内
に流路制限部材を設けた異物捕獲スクリーンを、
前記各燃料棒の下端部が対応の前記格子枠により
囲撓されるように、最下部の前記支持グリツドと
前記下部ノズルとの間に配置したことを特徴とす
る核燃料集合体。 A lower nozzle, an upper nozzle, a plurality of control rod guide tubes communicating between the two nozzles and arranged parallel to each other, and supports fixed to the control rod guide tubes at appropriate intervals in the longitudinal direction thereof. Grid and
In a nuclear fuel assembly comprising a plurality of fuel rods inserted and supported through each opening of the support grid and arranged parallel to each other, a plurality of thin plates are combined orthogonally to each other to define a plurality of lattice frames, and the lattice frames are A foreign matter capture screen with a flow path restriction member installed inside.
A nuclear fuel assembly characterized in that the fuel rod is disposed between the lowermost support grid and the lower nozzle so that the lower end of each of the fuel rods is surrounded by the corresponding grid frame.
JP1988038364U 1988-03-25 1988-03-25 Pending JPH01142896U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988038364U JPH01142896U (en) 1988-03-25 1988-03-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988038364U JPH01142896U (en) 1988-03-25 1988-03-25

Publications (1)

Publication Number Publication Date
JPH01142896U true JPH01142896U (en) 1989-09-29

Family

ID=31264918

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988038364U Pending JPH01142896U (en) 1988-03-25 1988-03-25

Country Status (1)

Country Link
JP (1) JPH01142896U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002296379A (en) * 2001-03-30 2002-10-09 Mitsubishi Heavy Ind Ltd Nuclear reactor fuel assembly

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002296379A (en) * 2001-03-30 2002-10-09 Mitsubishi Heavy Ind Ltd Nuclear reactor fuel assembly

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