JPS5834090U - nuclear fuel assembly - Google Patents
nuclear fuel assemblyInfo
- Publication number
- JPS5834090U JPS5834090U JP1981129055U JP12905581U JPS5834090U JP S5834090 U JPS5834090 U JP S5834090U JP 1981129055 U JP1981129055 U JP 1981129055U JP 12905581 U JP12905581 U JP 12905581U JP S5834090 U JPS5834090 U JP S5834090U
- Authority
- JP
- Japan
- Prior art keywords
- combined fuel
- fuel rod
- polygonal nut
- hole
- combined
- 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
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
- Fuel-Injection Apparatus (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
第１図は従来と本考案の一実施例とに共通した部分を一
部破断しｔ示す核燃料集合体の斜視図、第２図は第１図
の要部上面図、第３図は第１図の下部タイプレートと結
合燃料棒との結合部を拡大して示す断面図、第４図は第
１図の従来の場合の上部タイプレートと結合燃料棒との
結合部を拡大して示す上面図、第５図は第４図の■−■
線に沿う矢視て多角形ナツトとロッキングタブワッシャ
は断面にしないで示す断面図、第６図は第４図のＶＩ−
ＶＩ線に沿う矢視断面図、第７図は本考案の核燃料集合
体の一実施例の上部タイプレートと結合燃料棒との結合
部を示す断面図、第８図は第７図のロッキングタブワッ
シャを示す平面図、第９図は第７図の結合燃料棒を示す
上面図、第１０図は第９図の立面図である。
１・・・・・・上部タイプレート、３・・・・・・燃料
棒、４・・・・・・結合燃料棒、６・・・・・・下部タ
イプレート、８・・・・・・多角形ナツト、１０・・・
・・・ロッキングタブワッシャ、１１・・・・・・上部
端栓、１４・・・・・・うで、１５・・・・・・４角形
孔、１６・・・・・・４角柱、１７・・・・・・上部タ
イプレータの孔、１８・・・・・・ばか穴、１９・・・
・・・雄ねじ、２０・・・・・・円柱部。FIG. 1 is a perspective view of a nuclear fuel assembly with parts common to the conventional and one embodiment of the present invention partially cut away, FIG. 2 is a top view of the main parts of FIG. 1, and FIG. FIG. 4 is an enlarged cross-sectional view showing the joint between the lower tie plate and the combined fuel rod in the figure, and FIG. 4 is an enlarged top view showing the joint between the upper tie plate and the combined fuel rod in the conventional case shown in FIG. Figure 5 shows ■-■ of Figure 4.
A cross-sectional view showing the polygonal nut and locking tab washer as seen from the arrow along the line, FIG. 6 is the VI- of FIG. 4.
FIG. 7 is a sectional view taken along line VI, FIG. 7 is a sectional view showing the joint between the upper tie plate and the combined fuel rod of an embodiment of the nuclear fuel assembly of the present invention, and FIG. 8 is the locking tab shown in FIG. 7. FIG. 9 is a plan view showing the washer, FIG. 9 is a top view showing the combined fuel rod of FIG. 7, and FIG. 10 is an elevational view of FIG. 9. 1... Upper tie plate, 3... Fuel rod, 4... Combined fuel rod, 6... Lower tie plate, 8... Polygon nut, 10...
... Locking tab washer, 11 ... Upper end plug, 14 ... Arm, 15 ... Square hole, 16 ... Four square column, 17 ... Upper tie plate hole, 18 ... Stupid hole, 19 ...
... Male thread, 20 ... Cylindrical part.
Claims (2)
び下部に装着される上部および下部タイプレートで支持
し、上部タイプレートと結合燃料棒の結合構造は結合燃
料棒の上部を雄ねじとした上部端栓にて上部タイプレー
トの孔を貫通し、前記雄ねじに多角形ナツトを結合させ
、上部タイプレートと多角形ナツトとの間に挾まれ、２
本の結合燃料棒と結合し、折返しうでを多角形ナツトの
側辺に当接して多角形ナツトの廻り止めすると共に、結
合燃料棒と係合して結合燃料棒の廻り止めをするロッキ
ングタブワッシャを゛備えた刻燃料集合体において、結
合燃料棒とロッキングタブワッシャとの係合部は結合燃
料棒側を４角柱とし、ロッキングタブワッシャ側を４角
形穴としたことを特徴とする核燃料集合体。(1) Multiple fuel rods are supported by upper and lower tie plates attached to the upper and lower parts of multiple combined fuel rods, and the connection structure between the upper tie plate and the combined fuel rods is such that the upper part of the combined fuel rods is The upper end plug penetrates the hole in the upper tie plate, connects a polygonal nut to the male thread, and is sandwiched between the upper tie plate and the polygonal nut.
A locking tab that connects to the combined fuel rod of the book, contacts the side of the polygonal nut with its folded arm to prevent the polygonal nut from rotating, and also engages with the combined fuel rod to prevent the combined fuel rod from rotating. A nuclear fuel assembly equipped with a washer, wherein the engaging portion between the combined fuel rod and the locking tab washer has a square column on the side of the combined fuel rod and a square hole on the side of the locking tab washer. body.
ツトの下部をばか穴にしてこのばか穴に挿入したことを
特徴とする実用新案登録請求の範囲第１項記載の核燃料
集合体。(2) The nuclear fuel according to claim 1 of the utility model registration claim, characterized in that the upper part of the four prismatic column of the combined fuel rod is inserted into the hole by making the lower part of the polygonal nut into a hole. Aggregation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981129055U JPS5834090U (en) | 1981-08-31 | 1981-08-31 | nuclear fuel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981129055U JPS5834090U (en) | 1981-08-31 | 1981-08-31 | nuclear fuel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5834090U true JPS5834090U (en) | 1983-03-05 |
Family
ID=29922733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981129055U Pending JPS5834090U (en) | 1981-08-31 | 1981-08-31 | nuclear fuel assembly |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058211A (en) * | 2010-09-13 | 2012-03-22 | Global Nuclear Fuel-Japan Co Ltd | Nut rotation prevention washer for coupled fuel rod of fuel assembly and fuel assembly employing the same |
-
1981
- 1981-08-31 JP JP1981129055U patent/JPS5834090U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058211A (en) * | 2010-09-13 | 2012-03-22 | Global Nuclear Fuel-Japan Co Ltd | Nut rotation prevention washer for coupled fuel rod of fuel assembly and fuel assembly employing the same |
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