JPS6066183A - Fast breeder reactor - Google Patents
Fast breeder reactorInfo
- Publication number
- JPS6066183A JPS6066183A JP58174997A JP17499783A JPS6066183A JP S6066183 A JPS6066183 A JP S6066183A JP 58174997 A JP58174997 A JP 58174997A JP 17499783 A JP17499783 A JP 17499783A JP S6066183 A JPS6066183 A JP S6066183A
- Authority
- JP
- Japan
- Prior art keywords
- shield
- heat exchanger
- reactor
- fast breeder
- core
- 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
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)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［発明の技術分野］
本発明は高速ハ′７り１炉に係わり、′１；ｊに原子炉
容器内に１重重１．０拐と２重重ム（１月どの熱交換を
行なう熱交換器を備えた高速増ｈ゛１炉に関する、。Detailed Description of the Invention [Technical Field of the Invention] The present invention relates to a high-speed reactor. This invention relates to a high speed increaser 1 furnace equipped with a heat exchanger for heat exchange.
１発明の技術的背景」
第１図は高速増殖炉の一実施例を示づ゛もの一ζ、図に
おい（゛？〕号１は中心に炉心２をイｊＬ１重重７ＪＩ
材を収容す゛る原子炉容器を示しＣいる。1 Technical Background of the Invention Figure 1 shows an embodiment of a fast breeder reactor.
Figure C shows the reactor vessel containing the materials.
この原子炉容器１の上端器［１部は図示しない１１ム蔽
プラグにより遮蔽されＵ Ｊ５す、遮蔽プラグから番は
１次冷却材と２次冷却材どの熱交換をｔｊなうＮ数の熱
交換器３が垂設されＣいる。図示しない炉心支持板によ
り支持される炉心２を囲繞し−＜名ＩＢ２自在とされる
可動遮蔽体４が配設され−（ｄ５つ、この可動遮蔽体４
を囲繞しＣ固定遮蔽体５ｊが配設されている。これらの
遮蔽体４．５１Ｊステンレス３Ｎ月を多重に配設しＣ構
成されＣいる。ぞしＣ１さらに熱交換器３を囲繞して熱
交換器３内（４Ｖ６か配設され石いる。The upper end of the reactor vessel 1 [1 part is shielded by an 11 shielding plug (not shown), and from the shielding plug the number of heat exchangers between the primary coolant and the secondary coolant is tj. An exchanger 3 is installed vertically. A reactor core 2 supported by a core support plate (not shown) is surrounded by movable shields 4 which are freely movable.
A C fixed shield 5j is disposed surrounding the C fixed shield 5j. These shields are constructed by arranging 4.51J stainless steel 3N shields in multiple layers. Next C1 further surrounds the heat exchanger 3, and inside the heat exchanger 3 (4V6 or the like is arranged).
以上のように構成された高速増タメ１炉（・は、炉心２
で発生した熱は例えば液体全屈すトリウムかうなる１次
冷却材を介し−（熱交換器３内に移送され、この熱交１
ｆＡ器３においてこのエネルギは２次冷油材に伝達され
る。そして炉心２内の核分裂により発生した中性子は可
動遮蔽体４、固定遮蔽体５および熱交換器遮蔽体６によ
りＸ蔽される。そしＣ１炉心２から熱交換器遮蔽体６に
至る過程で生み出され、ナトリウム中放射化に対する寄
与の大きい熱中性子は最終的に熱交換器遮蔽体６により
効果的に遮蔽される。The high-speed increaser 1 reactor (・ is the core 2
The heat generated in the
In the fA unit 3, this energy is transmitted to the secondary cold oil material. Neutrons generated by nuclear fission within the reactor core 2 are X-shielded by a movable shield 4, a fixed shield 5, and a heat exchanger shield 6. Thermal neutrons, which are generated in the process from the C1 core 2 to the heat exchanger shield 6 and contribute greatly to activation in sodium, are effectively shielded by the heat exchanger shield 6 in the end.
すなわら、このような高速増夕め炉では、２重重ノｉｌ
ｌ祠の循環する２次冷却系配管表面にＪｊけるγ線線ｔ
ｉｉ ＄をｔ′１容線口１率以下に“す〜ることが設η
１基１１（とされてＪ５す、可動遮蔽体４、固定遮蔽体
５ ｉＪｊよび熱交換器遮蔽体６にＪζり熱交換器３内
の２重重却拐、例えばブトリウムの放射化率を許容レベ
ル以−トにすることが行われ”Ｃいる。In other words, in such a high-speed dusk reactor, double-layered fuel
γ-rays on the surface of the circulating secondary cooling system piping of the shrine
ii.
1 unit 11 (J5, movable shield 4, fixed shield 5 iJj and Jζ to the heat exchanger shield 6) double depletion in the heat exchanger 3, e.g. What is being done is "C".
［背景技術の問題点１
しかしながら、このように炉心２を可動遮蔽体４および
固定遮蔽体５で遮蔽し、さらに熱交換器３を一定の板厚
を右する熱交換器遮蔽体６により遮蔽する場合には、例
えば熱出力２５０ＯＭＷクラスのプール型高速増殖炉で
は、熱交換器３を６基配設した場合、４００〜７００ｔ
の多大／、＜ ｎ’ｔのステンレス鋼が必要どなり、経
済的に望ましくなく、また原子炉が大型化りるという問
題がある。[Problem in the Background Art 1 However, in this way, the core 2 is shielded by the movable shield 4 and the fixed shield 5, and the heat exchanger 3 is further shielded by the heat exchanger shield 6 having a constant plate thickness. For example, in a pool-type fast breeder reactor with a thermal output of 250 OMW class, when six heat exchangers 3 are installed, the total capacity is 400 to 700 tons.
This requires a large amount of stainless steel with <n't, which is economically undesirable, and there is a problem that the reactor becomes larger.
［発明の目的］
本発明はかかる従来の事情に対処しでなされたもので゛
、遮蔽体の総重但を減少し経済的に安１ｌｌｌｌな、ま
た原子炉の小型化を図ることのできる高速増殖炉を提供
しようとするものぐある。[Object of the Invention] The present invention has been made in order to cope with the above-mentioned conventional circumstances. There are also efforts to provide breeder reactors.
［発明の１１λ要〕
ずなわら本発明は、中心に炉心をイｊＬ１重重力ｊ材を
収容する原子炉容器と、この原子炉容器内にかつこの原
子炉容器と前記炉心との間に配設され前記１重重却祠と
２重重ｌｊｌ拐どの熱交換を行なう熱交換器とを、備え
た高速増殖炉にＬ１２いで、前記熱交換器は前記炉心側
Ｃ厚くとられた熱交換器遮蔽体により遮蔽されでいるこ
とを持ｉ１′ｉどりる。！′３１速」１９殖炉０ある。[11λ Requirements of the Invention] The present invention has a reactor vessel in which a reactor core is housed in the center, and a reactor vessel that accommodates heavy gravity materials, and a reactor vessel that is disposed within this reactor vessel and between this reactor vessel and the reactor core. A fast breeder reactor is equipped with a heat exchanger for performing heat exchange such as the single-layer reactor and double-layer reactor, and the heat exchanger is provided with a thick heat exchanger shield on the core side C. i1'i is shielded by i1'i. ! '31 speed' There are 19 breeding furnaces and 0.
［発明の実施例］
以下本発明の詳細を図面に示す一実施例について説明す
る。[Embodiment of the Invention] The details of the present invention will be described below with reference to an embodiment shown in the drawings.
第２図は本発明の一実施例の高速増殖炉を示すものＣ１
図においＣ符号３は熱交換器を示している。この熱交換
器３の炉心２側には中間熱交換器遮蔽体７が配設されて
おり、この熱交換器遮蔽体７は興なるＩ７さを右する３
層の遮蔽体７ａ、７ｂ。Figure 2 shows a fast breeder reactor according to an embodiment of the present invention C1
In the figure, C symbol 3 indicates a heat exchanger. An intermediate heat exchanger shield 7 is disposed on the core 2 side of the heat exchanger 3, and this heat exchanger shield 7
Layer shields 7a, 7b.
７Ｇから４１４成され−Ｃいる。最内層に位置する遮蔽
体７ａは熱交換器３の炉心側半面を遮蔽しＣＪ５す、ま
た中間部に配設される；席蔽体７ｂは約１２０’の面を
′ｍ蔽し、さらに最外周に配設される遮蔽体７Ｇは約（
３０°の範囲を遮蔽している。7G to 414-C. The shielding body 7a located in the innermost layer shields the half surface of the heat exchanger 3 on the core side, and is also arranged in the middle part; The shielding body 7G arranged on the outer periphery is approximately (
It covers a range of 30°.
さらにこの実施例では、第１図で示した炉心２を囲繞し
く Ｆｌｉ！設される固定遮蔽体５が除去され−Ｃいる
。なａ５以上ｊホベた部分を除いて第１図の高速増殖炉
と同様に（１４成されているので、第１図と同一部分に
は同一符号をｆ勺シ説明を省略する。Furthermore, in this embodiment, the reactor core 2 shown in FIG. 1 is surrounded by Fli! The installed fixed shield 5 is removed. The structure is the same as that of the fast breeder reactor shown in FIG. 1 except for the parts that have been moved over A5 and above, so the same parts as in FIG.
以上のように構成された高速増殖炉では、炉心内の核分
裂により発生づる中性子のうち、高速中性子は可動鴻Ｗ
ｉｋ体４・にＪ、り鴻ｉ１’ｔｌｉされ、中速中性子は
１重重却拐であるナトリウム中で減速され、さらに２次
す１〜リウムの放射化に対りる寄与の太きい熱中性子は
３層からなる熱交換器遮蔽体７にＪ、り完全に遮蔽され
る。In the fast breeder reactor configured as described above, among the neutrons generated by nuclear fission in the reactor core, fast neutrons are
The medium-velocity neutron is decelerated in sodium, which is a single-layer neutron, and the thermal neutron, which has a large contribution to the activation of secondary is completely shielded by a heat exchanger shield 7 consisting of three layers.
すなわち、熱交換器３内へ飛び込む中↑（１子は、炉心
２中心と熱交換器３中心とを結ぶ白線（上から最も多く
熱交換器３へ飛び込むため、この部分の熱交換器遮蔽体
７の厚みを最も人８くづることにより最も効率的な熱交
換器遮蔽体７を得ることができる。In other words, while jumping into heat exchanger 3 ↑ (the first child is the white line connecting the center of core 2 and the center of heat exchanger 3 (because it jumps into heat exchanger 3 most from above, By reducing the thickness of 7 to 8, the most efficient heat exchanger shield 7 can be obtained.
この実施例にＪ：れば、前）ホした例えば熱出力２５０
０ＭＷクラスのプール型高速増殖炉ぐ、かつ熱交換器３
を６基配設した場合、遮蔽体であるステンレス鋼の但を
、例えば従）！（の４００ｔ〜７００ｔから２１０ｔま
で低減することか′Ｃきる。さらに材料の放ＪＪ１線損
傷で特に問題となる高速中性子は、可動遮蔽体４により
十分鴻Ｎｉｉ［されているのぐ固定遮蔽体５を除去する
ことができ、原子炉の小型化を図ることがぐきる。In this example, J: If the previous) E is used, for example, the heat output is 250
0MW class pool type fast breeder reactor and heat exchanger 3
If six units are installed, the stainless steel shielding body (for example, sub-)! (It can be reduced from 400t to 700t to 210t.Furthermore, fast neutrons, which are a particular problem in radiation damage to materials, can be sufficiently suppressed by the movable shield 4, but not by the fixed shield 5. can be removed, making it possible to downsize nuclear reactors.
第３図は固定遮蔽体４の厚さとり−１−リウムの放射化
率を許容レベル以下にするという、遮蔽膜ｉＩ基準を満
たす為の遮蔽体総組ｂ１との関係を示づもので、図にお
いＣ曲線ａは、第１図に示した均等厚ステンレスｕＡ製
の熱交換器遮蔽体６と同定遮蔽体４とを組合「だ場合を
、曲線すは第２図に示したステンレス鋼製３層の熱交換
器遮蔽体７と固定遮蔽体４どを組合けだ場合を示してい
る。Figure 3 shows the relationship between the thickness of the fixed shield 4 and the overall shield set b1 in order to satisfy the shielding film iI criteria, which is to keep the activation rate of -1-lium below the permissible level. The odor C curve a is obtained by combining the heat exchanger shield 6 made of uniform thickness stainless steel uA shown in FIG. A case is shown in which a layered heat exchanger shield 7 and a fixed shield 4 are combined.
この図から明らかなように以上述べｌ〔実施例の高速増
殖炉によれば、従来に比べ遮蔽体の総重量を大幅に低減
りることができる。また、図中曲線ｃ、ｄは熱交換器遮
蔽体としてステンレス鋼の代わりにステンレス鋼より中
性子に対Ｊる遮蔽特性の良いボロン鋼およびＢ４Ｇ遮蔽
体を用いた場合につい−（示り。これにＪ、れば、ざら
に大幅な遮蔽体の総重量の低減が可能となる。As is clear from this figure, according to the fast breeder reactor of the embodiment described above, the total weight of the shield can be significantly reduced compared to the conventional one. In addition, curves c and d in the figure are for the case where boron steel and B4G shielding material, which has better shielding properties against neutrons than stainless steel, are used instead of stainless steel as the heat exchanger shielding material. J, it becomes possible to significantly reduce the total weight of the shield.
なお、固定遮蔽体４としＣ黒鉛からなる遮蔽体を用いる
場合には、中高速中性子に対する黒鉛の優れた減速効果
と、黒鉛の密度が低いことがら遮蔽体総重量をステンレ
ス鋼製の固定遮蔽体４を用いる場合に比較してさらに減
少することができる。In addition, when using a shield made of C graphite as the fixed shield 4, the total weight of the shield can be reduced by using a fixed shield made of stainless steel due to graphite's excellent moderating effect on medium-fast neutrons and the low density of graphite. This can be further reduced compared to the case where 4 is used.
そしＣ１熱交換器遮蔽体としＣボロン鋼や８４Ｇを用い
ることにより、さらに遮蔽体総重量を減少することがで
きる。By using C boron steel or 84G for the C1 heat exchanger shield, the total weight of the shield can be further reduced.
第４図は固定遮蔽体４として黒鉛からなる′４蔽体を使
用した場合の固定遮蔽体の厚さとプ用・リウムの放射化
率を檜容レベル以下にするどいつ、遮蔽膜δ１基準を満
たず為の遮蔽体総重量との関係を示す−しのぐ、図にお
いて曲線Ｃは、第１図に示した均等厚ステンレス＃Ａ製
の熱交換器″＆敵体６と黒鉛からなる固定遮蔽体どを組
合せた場合を、曲線［は第２図に示したステンレスｍ′
ｆＡ３層の熱交換器遮蔽体７と黒鉛からなる固定ｉｌ！
！敞体どを組合【！た場合を示している。Figure 4 shows when a fixed shield 4 made of graphite is used, the thickness of the fixed shield 4 and the activation rate of phosphorium must be below the volume level to satisfy the shielding film δ1 criterion. Curve C in the figure shows the relationship between the total weight of the shield and the fixed shield made of uniform thickness stainless #A heat exchanger & enemy body 6 and graphite shown in Figure 1. The curve [is the stainless steel m' shown in Fig. 2]
fA3-layer heat exchanger shield 7 and fixed IL made of graphite!
! The union [! The case is shown below.
この図から明らかなように黒鉛から′／、ｊる固定遮蔽
体を使用した高速増殖炉によれば、従来に比べ遮蔽体の
槽重、量を大幅に低減することがＣきる。As is clear from this figure, a fast breeder reactor using a fixed shield made of graphite can significantly reduce the tank weight and amount of the shield compared to the conventional method.
また、図中曲線ｇ １ｔ＋は熱交換器遮蔽体としＣステ
ンレス鋼の代わりにステンレス鋼より中性子に封する遮
蔽特性の良いボロン鋼ａｊよσ８４Ｃ鴻敵体を用いた場
合についＣ示す。これによれは、ひらに大幅な遮蔽体の
組型■の低減が可能となる。In addition, the curve g1t+ in the figure shows the case where instead of C stainless steel, boron steel aj or σ84C, which has a better shielding property against neutrons than stainless steel, is used as a heat exchanger shield. This makes it possible to significantly reduce the assembly size of the shield.
［発明の効果」
以−［述ｌ＼たＪ、うに本発明の１１１速増殖炉にＪ、
れば、中性子４蔽体の組型１ｖを従来に比較し大幅に低
減りることがＵ″さ、また、Ｐ１１定遮蔽体厚の減小あ
るいはぞの削除を通じて原子炉の小型化を図ることがで
・８、経流的に右利４１原子炉を提供することがＣ′８
゛る。[Effects of the Invention] Hereinafter, the 111 fast breeder reactor of the present invention will be described.
If so, it is possible to significantly reduce the neutron 4 shield assembly type 1v compared to the conventional one, and also to reduce the size of the reactor by reducing the P11 constant shield thickness or eliminating the groove. 8, it is C'8 to provide 41 nuclear reactors in the right direction.
It's true.
９１１図は従来の高速増殖炉の一実施例の４半分を示１
Ｊ４Ｍ ＰＪｉ而図面第２図はＡ（発明の一実施例の高
速増殖炉の４半分を示ブ（＋４断面図、第３図およびａ
（４図は固定連＋ｌ＋１！体の斤８と遮蔽体総重量との
関係を示すグラフＣ゛ある。
１・・・・・・・・・・・・ＩＧｉ子炉容器３・・・・
・・・・・・・・熱交換器
４・・・・・・・・・・・・１１Ｊ動遮蔽体５・・・・
・・・・・・・・固定遮蔽体７・・・・・・・・・・・
・熱交挽器連ｉ１ｉ！ｉ体代理人弁理ｆ 須 山 佐
−
莞３図
固定速１１圭っ厚さくＣ町Figure 911 shows four halves of an embodiment of a conventional fast breeder reactor.
J4M PJi Figure 2 shows four halves of a fast breeder reactor according to an embodiment of the invention (+4 sectional view, Figure 3 and a
(Figure 4 is a graph C showing the relationship between the fixed station + l + 1! body weight 8 and the total weight of the shield. 1... IGi child reactor vessel 3...
......Heat exchanger 4...11J moving shield 5...
・・・・・・Fixed shield 7・・・・・・・・・・・・
・Heat exchanger ren i1i! I-Entity Attorney Patent Attorney Sa Suyama
- Guan 3 fixed speed 11 Kei thick C town
Claims (4)
子炉容器と、この原子炉容器内にかつこの原子炉容器と
前記メツ」心どの間に配設され前記１次冷却材と２次冷
却４Ａどの熱交換を行なう熱交換器どを備えた高速増９
〆１メ）コにおいＣ１前記熱交換器は前記炉心側？ｌ″
即くとられた熱交換器遮蔽体により遮蔽されＣいること
を特徴とする高速増殖炉。(1) A reactor vessel which has a reactor core in the center and which accommodates the primary reactor, and the primary coolant which is disposed within this reactor vessel and between this reactor vessel and the above-mentioned core. A high-speed increaser 9 equipped with a heat exchanger etc. for heat exchange such as secondary cooling 4A etc.
〆1Me) Smell C1 Is the heat exchanger on the core side? l″
A fast breeder reactor, characterized in that it is shielded by a heat exchanger shield that is removed immediately.
る１Ｊｉ晶２１品求の範囲第１項記載の高速ｉ！Ｉｌ殖
炉。(2) Force () exchange l! /I device tracking body is made of stainless steel and is made of stainless steel. Il Breeder.
′［請求の範囲第１項記載の高速増殖炉。(3) The heat exchanger shaking shield A4- is a special 5-piece made of 1" bone steel.
' [Fast breeder reactor according to claim 1.
からなる特晶′ｌ請求の範囲４１１項記載の高速増殖力
」(4) λ() The alternator shield 11iA i is a special crystal consisting of a BnC shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58174997A JPS6066183A (en) | 1983-09-21 | 1983-09-21 | Fast breeder reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58174997A JPS6066183A (en) | 1983-09-21 | 1983-09-21 | Fast breeder reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6066183A true JPS6066183A (en) | 1985-04-16 |
| JPH0155436B2 JPH0155436B2 (en) | 1989-11-24 |
Family
ID=15988410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58174997A Granted JPS6066183A (en) | 1983-09-21 | 1983-09-21 | Fast breeder reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6066183A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706830A (en) * | 2019-10-18 | 2020-01-17 | 中国科学院合肥物质科学研究院 | A shield with integrated heat exchange function |
-
1983
- 1983-09-21 JP JP58174997A patent/JPS6066183A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110706830A (en) * | 2019-10-18 | 2020-01-17 | 中国科学院合肥物质科学研究院 | A shield with integrated heat exchange function |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0155436B2 (en) | 1989-11-24 |
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