JPH0385594U - - Google Patents
Info
- Publication number
- JPH0385594U JPH0385594U JP1989147194U JP14719489U JPH0385594U JP H0385594 U JPH0385594 U JP H0385594U JP 1989147194 U JP1989147194 U JP 1989147194U JP 14719489 U JP14719489 U JP 14719489U JP H0385594 U JPH0385594 U JP H0385594U
- Authority
- JP
- Japan
- Prior art keywords
- fuel assembly
- lower nozzle
- pressurized water
- nozzle
- water reactor
- 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
- 239000000446 fuel Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 239000003758 nuclear fuel Substances 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
- Monitoring And Testing Of Nuclear Reactors (AREA)
Description
第１図は本考案の下部ノズルで薄板をねじ込み
方式で取りつけることおよび下部炉心板との関係
説明図、第２図は第１図の下部ノズルを下方から
見た説明図、第３図は本考案の下部ノズルのばね
押さえ方式の実施例説明図、第４図は第３図にお
ける薄板が使用されている下部ノズルの下方から
見た説明図、第５図は原子燃料集合体の説明図で
ある。
１……燃料集合体、２……燃料棒、３……下部
ノズル、４……上部ノズル、５……支持格子、１
０……薄板、１１……ねじ、１２……下部炉心板
、１３……突起物、１４……固定用穴、１５……
穴、１６……押さえねじ、１７……ばね、１８…
…小孔。
Figure 1 is an explanatory diagram of the lower nozzle of the present invention, in which the thin plate is attached by screwing, and its relationship with the lower core plate. Figure 2 is an explanatory diagram of the lower nozzle of Figure 1 seen from below. Figure 3 is the main part of the lower nozzle. An explanatory diagram of an embodiment of the spring-holding method of the lower nozzle of the invention, Figure 4 is an explanatory diagram of the lower nozzle in which the thin plate in Figure 3 is used, seen from below, and Figure 5 is an explanatory diagram of a nuclear fuel assembly. be. DESCRIPTION OF SYMBOLS 1...Fuel assembly, 2...Fuel rod, 3...Lower nozzle, 4...Upper nozzle, 5...Support grid, 1
0...Thin plate, 11...Screw, 12...Lower core plate, 13...Protrusion, 14...Fixing hole, 15...
Hole, 16... Cap screw, 17... Spring, 18...
...Small hole.
Claims (1)
ズルの底面にねじ込み方式、あるいはばね押さえ
方式を用いて、燃料集合体の伸びに対して上部ノ
ズルと上部炉心板とが接触しないように余裕を確
保できる約１〜４mm程度の厚さを有する脱着可能
な薄板を取りつけてなることを特徴とする加圧水
型原子炉用燃料集合体の下部ノズル。 In a pressurized water reactor, by using a screw-in method or a spring-holding method on the bottom of the lower nozzle of the fuel assembly, it is possible to secure a margin so that the upper nozzle and the upper core plate do not come into contact with each other as the fuel assembly expands. A lower nozzle of a fuel assembly for a pressurized water reactor, characterized in that a removable thin plate having a thickness of about 1 to 4 mm is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989147194U JPH0385594U (en) | 1989-12-20 | 1989-12-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989147194U JPH0385594U (en) | 1989-12-20 | 1989-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0385594U true JPH0385594U (en) | 1991-08-29 |
Family
ID=31693722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989147194U Pending JPH0385594U (en) | 1989-12-20 | 1989-12-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0385594U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007537003A (en) * | 2004-05-13 | 2007-12-20 | ヒューマンスケール コーポレイション | Chair with column base with membrane panel |
| JP2008157943A (en) * | 2006-12-22 | 2008-07-10 | Global Nuclear Fuel Americas Llc | Assembly and method for mounting a fuel assembly having a predetermined orientation in a nuclear reactor |
-
1989
- 1989-12-20 JP JP1989147194U patent/JPH0385594U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007537003A (en) * | 2004-05-13 | 2007-12-20 | ヒューマンスケール コーポレイション | Chair with column base with membrane panel |
| JP2008157943A (en) * | 2006-12-22 | 2008-07-10 | Global Nuclear Fuel Americas Llc | Assembly and method for mounting a fuel assembly having a predetermined orientation in a nuclear reactor |