JPS58169584U - nuclear fuel elements - Google Patents

nuclear fuel elements

Info

Publication number
JPS58169584U
JPS58169584U JP1982066584U JP6658482U JPS58169584U JP S58169584 U JPS58169584 U JP S58169584U JP 1982066584 U JP1982066584 U JP 1982066584U JP 6658482 U JP6658482 U JP 6658482U JP S58169584 U JPS58169584 U JP S58169584U
Authority
JP
Japan
Prior art keywords
nuclear fuel
coil spring
cylindrical member
cladding tube
end plug
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.)
Granted
Application number
JP1982066584U
Other languages
Japanese (ja)
Other versions
JPS6317036Y2 (en
Inventor
健治 佐藤
後藤　雅和
大島　正儀
Original Assignee
原子燃料工業株式会社
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 原子燃料工業株式会社 filed Critical 原子燃料工業株式会社
Priority to JP1982066584U priority Critical patent/JPS58169584U/en
Publication of JPS58169584U publication Critical patent/JPS58169584U/en
Application granted granted Critical
Publication of JPS6317036Y2 publication Critical patent/JPS6317036Y2/ja
Granted 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)
  • Butt Welding And Welding Of Specific Article (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図は従来周知の燃料要素の断面図、第２図イは他の
従来燃料要素の断面図、同図口はそのコイルばね上端部
や横ずれ状態を示す断面図、同図ハはコイルばねの押し
込状態を示す断面図、第３図はこの考案の実施例の断面
図、第４図は上部端栓の変形例を示す要素上方部の断面
図。 図中、１．１′・・・被覆管、２．２′・・・燃料ペレ
ット、３．３′・・・上部の端栓、３ａ、　　３ａ’・
・・突き合せ肩部、３ｂ、　　３ｂ’・・・底部、５．
５′・・・ガス溜め室、６．　６’・・・コイルばね、
＄ａ、　　＄ａ’・・・密巻き部、７・・・円筒部材。Fig. 1 is a cross-sectional view of a conventionally known fuel element, Fig. 2 A is a cross-sectional view of another conventional fuel element, the opening in the figure is a cross-sectional view showing the upper end of the coil spring and the state of lateral displacement, and the figure C is a cross-sectional view of the coil spring. FIG. 3 is a sectional view of the embodiment of the invention, and FIG. 4 is a sectional view of the upper part of the element showing a modification of the upper end plug. In the figure, 1.1'...cladding tube, 2.2'...fuel pellets, 3.3'...upper end plug, 3a, 3a'.
...Butt shoulder, 3b, 3b'...bottom, 5.
5'...Gas reservoir chamber, 6. 6'...Coil spring,
$a, $a'...Tightly wound part, 7...Cylindrical member.

Claims (3)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）被覆管１内の上方ガス溜め室５に、上端に細径の
密巻き部６゛ａを形成したコイルばね６を配設し、該コ
イルばね６の密巻き部６ａを上記被覆管１と同材質でコ
イルばね６の外径より若干小径の円筒部材７の下部内側
に嵌合し、被覆管・　　１の上端には該管と材質を同じ
くし底部３ｂの周側面を球状曲面又は円錐面とした端栓
３を被嵌溶接し、上記円筒部材７の上端開口部を端栓、
　　３の底部周側面に圧接させるようにしたことを特徴
とする核燃料要素。(1) A coil spring 6 having a small-diameter tightly wound portion 6a formed at the upper end is disposed in the upper gas reservoir chamber 5 in the cladding tube 1, and the tightly wound portion 6a of the coil spring 6 is connected to the cladding tube. It fits inside the lower part of a cylindrical member 7 made of the same material as 1 and has a slightly smaller diameter than the outer diameter of the coil spring 6, and the upper end of the cladding tube 1 is made of the same material as the tube and the circumferential side of the bottom 3b is formed with a spherical curved surface or The end plug 3 having a conical surface is fitted and welded, and the upper end opening of the cylindrical member 7 is connected to the end plug.
3. A nuclear fuel element characterized in that it is brought into pressure contact with the bottom circumferential side of No. 3. （２）端栓３の底部周面を硬質クロム又はチタンカーバ
イト等で表面処理を施してなる上記登録請求の範囲第１
項記載の核燃料要素。(2) The bottom peripheral surface of the end plug 3 is surface-treated with hard chromium, titanium carbide, etc.
Nuclear fuel elements listed in Section. （３）　　円筒部材７の上端開口部内周縁に座ぐり部を
形成してなる上記登録請求の範囲第１項記載の核燃料要
素。(3) The nuclear fuel element according to claim 1, wherein a counterbore is formed on the inner peripheral edge of the upper end opening of the cylindrical member 7.
JP1982066584U 1982-05-10 1982-05-10 nuclear fuel elements Granted JPS58169584U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982066584U JPS58169584U (en) 1982-05-10 1982-05-10 nuclear fuel elements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982066584U JPS58169584U (en) 1982-05-10 1982-05-10 nuclear fuel elements

Publications (2)

Publication Number Publication Date
JPS58169584U true JPS58169584U (en) 1983-11-12
JPS6317036Y2 JPS6317036Y2 (en) 1988-05-13

Family

ID=30076448

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982066584U Granted JPS58169584U (en) 1982-05-10 1982-05-10 nuclear fuel elements

Country Status (1)

Country Link
JP (1) JPS58169584U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014059193A (en) * 2012-09-18 2014-04-03 Japan Atomic Energy Agency Method and jig for manufacturing cladding tube specimen of fuel rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014059193A (en) * 2012-09-18 2014-04-03 Japan Atomic Energy Agency Method and jig for manufacturing cladding tube specimen of fuel rod

Also Published As

Publication number Publication date
JPS6317036Y2 (en) 1988-05-13

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