JPH0233398U - - Google Patents
Info
- Publication number
- JPH0233398U JPH0233398U JP1988113017U JP11301788U JPH0233398U JP H0233398 U JPH0233398 U JP H0233398U JP 1988113017 U JP1988113017 U JP 1988113017U JP 11301788 U JP11301788 U JP 11301788U JP H0233398 U JPH0233398 U JP H0233398U
- Authority
- JP
- Japan
- Prior art keywords
- water rod
- fuel assembly
- diameter
- rod
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000000446 fuel Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 3
- 239000003758 nuclear fuel Substances 0.000 claims 2
- 238000009835 boiling Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Description
第１図ないし第３図は本考案燃料集合体の要部
をなすウオーターロツド下部構造の各実施例を示
す部分断面図、第４図はＢＷＲ炉心における軸方
向相対出力分布図、第５図は下部細径管構造の太
径ウオーターロツドを有する燃料集合体を示す一
部省略内部構造図、第６図は従来の太径ウオータ
ーロツドの構造を示す一部省略部分断面図である
。
１……ウオーターロツド、１ａ……太径管部、
１ｂ……細径管部、２……燃料棒、８……冷却材
流入孔、１０……下部端栓、１０ａ……下部端栓
延長部。
Figures 1 to 3 are partial sectional views showing each embodiment of the water rod lower structure that forms the main part of the fuel assembly of the present invention, Figure 4 is a diagram of the axial relative power distribution in the BWR core, and Figure 5 6 is a partially omitted internal structure diagram showing a fuel assembly having a large-diameter water rod with a lower narrow-diameter tube structure, and FIG. 6 is a partially omitted partially sectional view showing the structure of a conventional large-diameter water rod. 1... Water rod, 1a... Large diameter pipe section,
1b...Small diameter pipe portion, 2...Fuel rod, 8...Coolant inflow hole, 10...Lower end plug, 10a...Lower end plug extension.
Claims (1)
て、集合体内部に燃料棒に比較し太径で、かつそ
の下部に細径管部を設けたウオーターロツドを有
する集合体において、ウオーターロツドの冷却材
流入孔を前記細径管部下端の下部端栓部に設けた
ことを特徴とする核燃料集合体。 ２ 冷却材流入孔を設けた下部端栓部の外径がウ
オーターロツド下部の細径管部の外径と略同等も
しくは約２倍程度の大きさである請求項１記載の
核燃料集合体。[Scope of Claim for Utility Model Registration] 1. A fuel assembly used in a boiling water nuclear reactor, which has a water rod inside the assembly that has a larger diameter than a fuel rod and has a smaller diameter pipe section at its lower part. 1. A nuclear fuel assembly having a water rod, wherein the coolant inflow hole of the water rod is provided in a lower end plug portion at the lower end of the narrow diameter tube. 2. The nuclear fuel assembly according to claim 1, wherein the outer diameter of the lower end plug provided with the coolant inflow hole is approximately equal to or about twice as large as the outer diameter of the small diameter tube at the lower part of the water rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988113017U JPH0233398U (en) | 1988-08-29 | 1988-08-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988113017U JPH0233398U (en) | 1988-08-29 | 1988-08-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0233398U true JPH0233398U (en) | 1990-03-02 |
Family
ID=31352484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988113017U Pending JPH0233398U (en) | 1988-08-29 | 1988-08-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0233398U (en) |
-
1988
- 1988-08-29 JP JP1988113017U patent/JPH0233398U/ja active Pending
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