JPS62189697U - - Google Patents
Info
- Publication number
- JPS62189697U JPS62189697U JP1986077930U JP7793086U JPS62189697U JP S62189697 U JPS62189697 U JP S62189697U JP 1986077930 U JP1986077930 U JP 1986077930U JP 7793086 U JP7793086 U JP 7793086U JP S62189697 U JPS62189697 U JP S62189697U
- Authority
- JP
- Japan
- Prior art keywords
- upper nozzle
- plate surface
- plate
- slot
- dividing
- 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 3
- 238000005452 bending Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
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)
- Nozzles (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
第１図ないし第３図はこの考案の一実施例のガ
イド部を示す図であつて、第１図はその側面図、
第２図は第１図中矢印方向の矢視図、第３図は
ガイド部を装着する方法を示す斜視図、第４図な
いし第７図はこの考案の他の実施例のガイド部を
示す図であつて、第４図はその側面図、第５図は
第４図中矢印方向の矢視図、第６図はガイド部
を装着する方法を示す第５図と同方向の矢視図、
第７図はガイド部を装着する方法を示す斜視図、
第８図はこの考案の他の実施例のガイド部を示す
斜視図、第９図は原子炉を示す断面図、第１０図
は燃料集合体を示す一部切欠正面図、第１１図な
いし第１４図は従来の上部ノズルを示す図であつ
て、第１１図はその一部切欠斜視図、第１２図は
その一部切欠正面図、第１３図は上部ノズルのガ
イド部を示す斜視図、第１４図は第１３図中
―線に沿う断面図である。
４，６，８…上部ノズル、１４…燃料集合体、
２０…上部ノズル本体、２４…ノズルスプリング
（弾性部材）、２７…基部（一端部）、２９…ガ
イド部（他端部）、３０…下端部（他端）、３１
…係止突起（係止部）、３２…上面、３３…下面
、４２…スロツト、４３…下端縁（他端縁）、４
９…ガイド孔（貫通孔）、５０…外側板面（一方
の板面）、５１…内側板面（他方の板面）、４４
，６１…分割面。
1 to 3 are views showing a guide portion of an embodiment of this invention, and FIG. 1 is a side view thereof;
Fig. 2 is a view taken in the direction of the arrow in Fig. 1, Fig. 3 is a perspective view showing how to attach the guide part, and Figs. 4 to 7 show guide parts of other embodiments of this invention. 4 is a side view thereof, FIG. 5 is a view taken in the direction of the arrow in FIG. 4, and FIG. 6 is a view taken in the same direction as FIG. ,
FIG. 7 is a perspective view showing how to attach the guide part;
FIG. 8 is a perspective view showing a guide section of another embodiment of this invention, FIG. 9 is a sectional view showing a nuclear reactor, FIG. 10 is a partially cutaway front view showing a fuel assembly, and FIGS. 14 is a diagram showing a conventional upper nozzle, FIG. 11 is a partially cutaway perspective view thereof, FIG. 12 is a partially cutaway front view thereof, and FIG. 13 is a perspective view showing a guide portion of the upper nozzle. FIG. 14 is a sectional view taken along the line -- in FIG. 13. 4, 6, 8... Upper nozzle, 14... Fuel assembly,
20... Upper nozzle main body, 24... Nozzle spring (elastic member), 27... Base (one end), 29... Guide part (other end), 30... Lower end (other end), 31
...Locking projection (locking part), 32...Top surface, 33...Bottom surface, 42...Slot, 43...Lower edge (other edge), 4
9... Guide hole (through hole), 50... Outer plate surface (one plate surface), 51... Inner plate surface (other plate surface), 44
, 61...Divided plane.
Claims (1)
体を下方へ向かつて押圧する弾性部材が設けられ
た上部ノズルであつて、前記弾性部材は、長尺の
板体をその中央部がその両端部に対して上方に突
出するように折り曲げて形成され、その一端部が
前記上部ノズル本体上面に固定されるとともに、
その他端部が前記上部ノズル本体にその上面から
下面に貫通して形成された貫通孔に挿入され、そ
の他端に長手方向に対して垂直方向に突出しかつ
前記上部ノズル本体の下面に当接する係止部が形
成された上部ノズルにおいて、前記他端部に、こ
の他端部の一方の板面から他方の板面に貫通しか
つ長手方向が前記他端部の長手方向に沿うスロツ
トを他端縁から離間して形成するとともに、前記
他端縁から前記スロツトに至り前記他端縁と前記
スロツトとの間の部分を分割する分割面を形成し
たことを特徴とする上部ノズル。 (2) 前記分割面は、前記一方の板面と前記他方
の板面との中間に位置し前記両板面に対して平行
になされた第１の直平面と、この第１の直平面の
前記他端部の幅方向の一端から前記一方の板面に
垂直に形成された第２の直平面と、前記第１の直
平面の前記他端部の幅方向の他端から前記他方の
板面に垂直に形成された第３の直平面とを備えて
いることを特徴とする実用新案登録請求の範囲第
１項記載の上部ノズル。[Claims for Utility Model Registration] (1) An upper nozzle that is provided with an elastic member on the periphery of the upper surface of the upper nozzle body that presses the fuel assembly downward, the elastic member being a long It is formed by bending a plate so that its central part protrudes upward from both ends thereof, and one end thereof is fixed to the upper surface of the upper nozzle main body,
The other end is inserted into a through hole formed in the upper nozzle body from the upper surface to the lower surface thereof, and the other end protrudes perpendicularly to the longitudinal direction and is a locking member that abuts the lower surface of the upper nozzle body. In the upper nozzle, the other end is provided with a slot that penetrates from one plate surface of the other end to the other plate surface and whose longitudinal direction is along the longitudinal direction of the other end. An upper nozzle characterized in that the upper nozzle is formed at a distance from the upper nozzle and further includes a dividing surface extending from the other end edge to the slot and dividing a portion between the other end edge and the slot. (2) The dividing plane includes a first perpendicular plane located between the one plate surface and the other plate surface and parallel to both the plate surfaces; a second straight plane formed perpendicularly to the one plate surface from one end in the width direction of the other end; and a second straight plane formed perpendicularly to the one plate surface from the other end in the width direction of the other end of the first straight plane; 2. The upper nozzle according to claim 1, further comprising a third straight plane formed perpendicular to the upper nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986077930U JPH056557Y2 (en) | 1986-05-23 | 1986-05-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986077930U JPH056557Y2 (en) | 1986-05-23 | 1986-05-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62189697U true JPS62189697U (en) | 1987-12-02 |
| JPH056557Y2 JPH056557Y2 (en) | 1993-02-19 |
Family
ID=30926401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986077930U Expired - Lifetime JPH056557Y2 (en) | 1986-05-23 | 1986-05-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH056557Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214838A (en) * | 2004-01-30 | 2005-08-11 | Nuclear Fuel Ind Ltd | Upper nozzle of fuel assembly for pressurized water reactor |
-
1986
- 1986-05-23 JP JP1986077930U patent/JPH056557Y2/ja not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005214838A (en) * | 2004-01-30 | 2005-08-11 | Nuclear Fuel Ind Ltd | Upper nozzle of fuel assembly for pressurized water reactor |
| JP4532127B2 (en) * | 2004-01-30 | 2010-08-25 | 原子燃料工業株式会社 | Fuel assembly upper nozzle for pressurized water reactors |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH056557Y2 (en) | 1993-02-19 |
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