JP7394047B2 - 炉心構造および原子炉 - Google Patents
炉心構造および原子炉 Download PDFInfo
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- JP7394047B2 JP7394047B2 JP2020203982A JP2020203982A JP7394047B2 JP 7394047 B2 JP7394047 B2 JP 7394047B2 JP 2020203982 A JP2020203982 A JP 2020203982A JP 2020203982 A JP2020203982 A JP 2020203982A JP 7394047 B2 JP7394047 B2 JP 7394047B2
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- core
- control member
- reactor
- fuel rods
- support plate
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- 239000000446 fuel Substances 0.000 claims description 135
- 239000002826 coolant Substances 0.000 claims description 46
- 230000007246 mechanism Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 description 29
- 239000003758 nuclear fuel Substances 0.000 description 12
- 230000009257 reactivity Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000006096 absorbing agent Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 4
- 229910052790 beryllium Inorganic materials 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 239000002574 poison Substances 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 239000012779 reinforcing material Substances 0.000 description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 3
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 229910052749 magnesium Inorganic materials 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 229910052580 B4C Inorganic materials 0.000 description 2
- LTPBRCUWZOMYOC-UHFFFAOYSA-N Beryllium oxide Chemical compound O=[Be] LTPBRCUWZOMYOC-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000002139 neutron reflectometry Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- FRWYFWZENXDZMU-UHFFFAOYSA-N 2-iodoquinoline Chemical compound C1=CC=CC2=NC(I)=CC=C21 FRWYFWZENXDZMU-UHFFFAOYSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 150000001572 beryllium Chemical class 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- ZXGIFJXRQHZCGJ-UHFFFAOYSA-N erbium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Er+3].[Er+3] ZXGIFJXRQHZCGJ-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- CMIHHWBVHJVIGI-UHFFFAOYSA-N gadolinium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Gd+3].[Gd+3] CMIHHWBVHJVIGI-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000001956 neutron scattering Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- DNYWZCXLKNTFFI-UHFFFAOYSA-N uranium Chemical compound [U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U][U] DNYWZCXLKNTFFI-UHFFFAOYSA-N 0.000 description 1
Images
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
2 原子炉容器
2A 容器本体
2B 容器蓋
3 炉心支持構造物
3A 炉心槽
3Aa 貫通孔
3B 上部炉心支持板
3Ba 貫通孔
3C 下部炉心支持板
3Ca 貫通孔
3Cb 上面
4 制御部材駆動機構
5 蒸気発生器
6 一次冷却材ポンプ
7 炉心
8 燃料棒
8A 核燃料
8B 筒部材
8C 上部端栓
8D 下部端栓
8Da 底面
8Db 側面
8Dc 切欠(連通部)
8E 弾性部材
9 グリッド
9A セル
9Aa 隙間
10 制御部材
10A 板体
10Aa 制御材
10Ab 被覆材
10Ac 格子
11 制御部材案内管
12 中性子反射体
12A 反射材
12B 補強材
20 支持部材
Claims (6)
- 上部炉心板あるいは上部炉心支持板と、下部炉心板あるいは下部炉心支持板とを備える炉心構造であって、
複数の燃料棒が前記上部炉心板あるいは前記上部炉心支持板と前記下部炉心板あるいは前記下部炉心支持板との間に配置され、下端が前記下部炉心板あるいは前記下部炉心支持板の上面に直接置かれて支持され、上端と前記上部炉心支持板との間に間隔が形成される、炉心構造。 - 前記燃料棒が独立して三角格子状に配置されている、請求項1に記載の炉心構造。
- 所定の前記燃料棒の間に配置された制御部材案内管と、前記制御部材案内管に挿入される制御部材と、を備え、
前記制御部材は、前記燃料棒の三角格子状の配置に沿う板体として形成され、前制御部材案内管は、板体である前記制御部材を挿入可能に前記燃料棒の三角格子状の配置に沿って設けられている、請求項2に記載の炉心構造。 - 前記制御部材は、挿入方向から視て前記板体を組み合わせた三等方配置板形状に形成されている、請求項3に記載の炉心構造。
- 各前記燃料棒が挿通されるセルを有するグリッドを備え、
前記グリッドは、前記セルが6角形状に形成されたハニカム構造に構成されている、請求項2から4のいずれか1項に記載の炉心構造。 - 原子炉容器と、
請求項1から5のいずれか1項に記載の炉心構造を有して前記原子炉容器の内部に配置された炉心と、
前記原子炉容器の内部に配置され前記原子炉容器の外部から二次冷却材が供給される一方で前記二次冷却材の蒸気が前記原子炉容器の外部に排出される蒸気発生器と、
前記原子炉容器の内部に配置され前記二次冷却材と熱交換する一次冷却材を前記炉心と前記蒸気発生器とに循環させる一次冷却材ポンプと、
前記原子炉容器の内部に配置され前記炉心に制御部材を抜き差しする制御部材駆動機構と、
を備える、原子炉。
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JP7394047B2 true JP7394047B2 (ja) | 2023-12-07 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003222694A (ja) | 2002-12-02 | 2003-08-08 | Hitachi Ltd | 軽水炉炉心及び燃料集合体並びに制御棒 |
JP2014510897A (ja) | 2010-09-27 | 2014-05-01 | バブコック・アンド・ウィルコックス・ニュークリアー・エナジー・インコーポレイテッド | 蒸気発生機を一体化した小型原子炉 |
JP2017106836A (ja) | 2015-12-10 | 2017-06-15 | 日立Geニュークリア・エナジー株式会社 | 沸騰水型原子炉 |
-
2020
- 2020-12-09 JP JP2020203982A patent/JP7394047B2/ja active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003222694A (ja) | 2002-12-02 | 2003-08-08 | Hitachi Ltd | 軽水炉炉心及び燃料集合体並びに制御棒 |
JP2014510897A (ja) | 2010-09-27 | 2014-05-01 | バブコック・アンド・ウィルコックス・ニュークリアー・エナジー・インコーポレイテッド | 蒸気発生機を一体化した小型原子炉 |
JP2017106836A (ja) | 2015-12-10 | 2017-06-15 | 日立Geニュークリア・エナジー株式会社 | 沸騰水型原子炉 |
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