JPS62104192U - - Google Patents
Info
- Publication number
- JPS62104192U JPS62104192U JP1985196154U JP19615485U JPS62104192U JP S62104192 U JPS62104192 U JP S62104192U JP 1985196154 U JP1985196154 U JP 1985196154U JP 19615485 U JP19615485 U JP 19615485U JP S62104192 U JPS62104192 U JP S62104192U
- Authority
- JP
- Japan
- Prior art keywords
- elastic member
- engagement groove
- temperature
- upper nozzle
- protrusion
- 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
Links
- 239000000446 fuel Substances 0.000 claims description 2
- 239000003758 nuclear fuel Substances 0.000 claims 2
- 230000002093 peripheral effect Effects 0.000 claims 2
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)
- Fuel-Injection Apparatus (AREA)
Description
第１図ないし第４図はこの考案の一実施例を示
す図であつて、第１図はその一部破断斜視図、第
２図は第１図における一部拡大図、第３図は第２
図で示される部分の平面図、第４図は第２図で示
される部分の一部破断側面図、第５図は燃料集合
体を示す一部切欠正面図、第６図ないし第８図は
従来の上部ノズルを示す図であつて、第６図はそ
の一部破断斜視図、第７図は第６図におけるＡ―
Ａ線断面図、第８図は第６図におけるＢ―Ｂ線断
面図である。
３０……上部ノズル本体、３１……上部ノズル
上面周辺部、３３，３３ａ……弾性部材を構成す
る主ノズルスプリング及び副ノズルスプリング、
３３ｂ，３３ｃ……貫通孔、３４……突出部、３
４ｂ……係合溝。
Figures 1 to 4 are views showing one embodiment of this invention, in which Figure 1 is a partially cutaway perspective view, Figure 2 is a partially enlarged view of Figure 1, and Figure 3 is a partially cutaway perspective view of the invention. 2
4 is a partially cutaway side view of the portion shown in FIG. 2, FIG. 5 is a partially cutaway front view showing the fuel assembly, and FIGS. 6 to 8 are FIG. 6 is a partially cutaway perspective view of a conventional upper nozzle, and FIG. 7 is a view showing A- in FIG.
8 is a sectional view taken along line A and FIG. 8 is a sectional view taken along line BB in FIG. 6. 30... Upper nozzle main body, 31... Upper nozzle upper surface periphery, 33, 33a... Main nozzle spring and sub-nozzle spring constituting the elastic member,
33b, 33c...Through hole, 34...Protrusion, 3
4b...Engagement groove.
Claims (1)
へ向かつて押圧する弾性部材を設けた原子炉燃料
集合体の上部ノズルにおいて、前記上部ノズル本
体上面周辺部の一部を上方に突出させて突出部を
形成し、この突出部に前記弾性部材を係合する係
合溝を設けるとともに、この係合溝の寸法を、前
記弾性部材の一端部の温度を前記突出部の温度よ
り低くした場合に前記弾性部材が前記係合溝に挿
脱自在となり、該係合溝に前記弾性部材の一端部
を係合した状態で該弾性部材の一端部の温度を前
記突出部の温度と同じくした場合に前記係合溝に
前記弾性部材の一端部が固く締め付け固定される
ような値に選定したことを特徴とする原子炉燃料
集合体の上部ノズル。 In an upper nozzle of a nuclear reactor fuel assembly, in which an elastic member is provided on a peripheral part of the upper surface of the upper nozzle body to press the fuel assembly downward, a part of the peripheral part of the upper surface of the upper nozzle body is made to protrude upward to form a protruding part. and an engagement groove for engaging the elastic member is provided in the protrusion, and the dimensions of the engagement groove are such that when the temperature of one end of the elastic member is lower than the temperature of the protrusion, The elastic member can be freely inserted into and removed from the engagement groove, and when one end of the elastic member is engaged with the engagement groove and the temperature of the one end of the elastic member is made the same as the temperature of the protrusion, the An upper nozzle for a nuclear reactor fuel assembly, characterized in that the value is selected such that one end of the elastic member is firmly tightened and fixed in the engagement groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985196154U JPH023193Y2 (en) | 1985-12-20 | 1985-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985196154U JPH023193Y2 (en) | 1985-12-20 | 1985-12-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62104192U true JPS62104192U (en) | 1987-07-02 |
| JPH023193Y2 JPH023193Y2 (en) | 1990-01-25 |
Family
ID=31154713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985196154U Expired JPH023193Y2 (en) | 1985-12-20 | 1985-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023193Y2 (en) |
-
1985
- 1985-12-20 JP JP1985196154U patent/JPH023193Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH023193Y2 (en) | 1990-01-25 |