JPS58168993A - Tank type fast breeder - Google Patents
Tank type fast breederInfo
- Publication number
- JPS58168993A JPS58168993A JP57051023A JP5102382A JPS58168993A JP S58168993 A JPS58168993 A JP S58168993A JP 57051023 A JP57051023 A JP 57051023A JP 5102382 A JP5102382 A JP 5102382A JP S58168993 A JPS58168993 A JP S58168993A
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- circular opening
- plate
- tank
- roof slab
- 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
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
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (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〕
本発明はタンク形高速増消炉に係り、特に上部遮蔽体の
改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tank-type high-speed intensifier reactor, and particularly to an improvement of an upper shield.
第１図はタンク形高速増殖炉の概略構成を示すもので、
図中１は原子ｆ容器でＴｏ−）て、この原子炉各自１の
上部は上部遮蔽体としてのルーフスフ１２で遮蔽されて
いる。このルーフスラブ２は下面周縁部を円筒状のスカ
ート３を介して周一の基礎４に支持されている。上記原
子炉容器１はルーフスラブ２の下面＠に吊下されている
。そして、原子炉容器１内には炉心１が設けられ一次冷
却材ボンプ６、中間熱交換機１、炉ｒ９上部機構８およ
び冷却材としての液体ナトリウム９が収容されている。Figure 1 shows the schematic configuration of a tank-type fast breeder reactor.
In the figure, 1 is an atomic f container (To-), and the upper part of each reactor 1 is shielded by a roof 12 as an upper shield. This roof slab 2 is supported at its lower peripheral edge by a circumferential foundation 4 via a cylindrical skirt 3. The reactor vessel 1 is suspended from the lower surface of the roof slab 2. A reactor core 1 is provided within the reactor vessel 1, and accommodates a primary coolant pump 6, an intermediate heat exchanger 1, a reactor r9 upper mechanism 8, and liquid sodium 9 as a coolant.
上記ルーフスラブ２の中央部には第２図の如く円形開口
ｆ！Ａｒｏが設けられ、この開口部１０には回転ブラダ
１１が嵌合されている。そして、この回転プラダ１１に
上記炉心上部機構８および制御棒駆動機構１２が支持さ
れている。この制御棒駆動機構１２は制御棒（図示せず
）を炉心５に対して上方より挿入・引抜して炉出力を制
御するように構成さｔｌている。In the center of the roof slab 2, there is a circular opening f! as shown in FIG. Aro is provided, and a rotating bladder 11 is fitted into this opening 10. The rotating Prada 11 supports the core upper mechanism 8 and the control rod drive mechanism 12 . The control rod drive mechanism 12 is configured to control the reactor output by inserting and withdrawing control rods (not shown) from above into the reactor core 5.
第２図はルーフスラブ２の平面図であって、このルーフ
スラブ２は中央部に上記回転！ラダ１１を嵌合させる円
形開口部１０を有する円盤形に形成されている。そして
、上記円形開口部１０の周Ｈには上記−次冷却材４７７
ｍｇ、中間熱交換機ｒ婢を支持するための透孔１３・・
・が設けられている。また、ルーフスラブ２は第３図に
示すように同一板厚の鋼板１４・・・を溶嵌して形成さ
れている。FIG. 2 is a plan view of the roof slab 2, and the roof slab 2 has the above-mentioned rotation in the center! It is formed into a disk shape with a circular opening 10 into which a ladder 11 is fitted. The secondary coolant 477 is disposed around the circumference H of the circular opening 10.
mg, through hole 13 for supporting the intermediate heat exchanger r...
・ is provided. Further, the roof slab 2 is formed by melt-fitting steel plates 14 of the same thickness as shown in FIG.
以上のように構成されたタンク形高速増殖炉では一次冷
却材ポングσ、中間熱交換機７が原子炉容器１内に収容
されているためにルーフスラブ２が大径となる。そして
、このルーフスラブ２はスカート３によって下（３）周
縁部のみを支持されているので大地簀発生時にはルーフ
スラブ２の中央部が上下動することが予想される。In the tank-type fast breeder reactor configured as described above, the primary coolant pump σ and the intermediate heat exchanger 7 are housed in the reactor vessel 1, so the roof slab 2 has a large diameter. Since only the lower (3) peripheral edge of the roof slab 2 is supported by the skirt 3, it is expected that the central portion of the roof slab 2 will move up and down when a landslide occurs.
このトキ、ルーフスラブ２の中央部に支持された制御棒
駆動機構１２もルーフスラブ２と一体に上下動すること
になる。したがって、制御棒も制＃松躯！ｖＩ機構１２
と一体に上下に変位する。At this time, the control rod drive mechanism 12 supported at the center of the roof slab 2 also moves up and down together with the roof slab 2. Therefore, the control rod is also controlled! vI mechanism 12
Displaces up and down together with.
よって制御棒と炉心５との相対位置が変化することにな
り、制御棒の炉心５への挿入量が変化し炉心６の反応度
を変化させてしまい、制御棒駆動機構１２による炉出力
の制御が行なえなくなるおそれがあった。Therefore, the relative position between the control rods and the reactor core 5 changes, the amount of insertion of the control rods into the reactor core 5 changes, and the reactivity of the reactor core 6 changes, causing the control rod drive mechanism 12 to control the reactor power. There was a risk that it would not be possible to do so.
本発明の目的とするところは、上部遮蔽体の重量増加を
最小限にとどめながら剛性を大幅に向上させ、地簀発生
時における上部遮蔽体の上下刃向の蚕輪を減少させて地
震時にも炉出力の制御が１冨に行なえるタンク形高速増
殖炉を提供することにある。The purpose of the present invention is to significantly improve the rigidity while minimizing the increase in weight of the upper shielding body, and to reduce the number of silkworms in the upper and lower blade directions of the upper shielding body at the time of occurrence of a landlock, and to prevent the upper shielding body from being damaged during an earthquake. An object of the present invention is to provide a tank-type fast breeder reactor in which the reactor output can be controlled to a single limit.
本発明によるタンク形高速増殖炉は、原子炉容器の上部
を遮蔽する上部遮蔽体の重量増加を最小限にとどめなが
ら有効に断面係数を増加さ １せて上Ｓａ蔽体の剛
性を大−に向上させたものである。The tank-type fast breeder reactor according to the present invention effectively increases the section modulus while minimizing the increase in the weight of the upper shield that shields the upper part of the reactor vessel. It has been improved.
第４図ないし第６因を参照して本発明の一実施例を説明
する。An embodiment of the present invention will be described with reference to FIGS. 4 to 6.
第４図はタンク形高速増熾炉の概略構成を示すもので、
図中１０１は原子炉容器であって、この原子炉容器１０
１の上部は上部遮蔽体としてのルーフスラブ１０３で遮
蔽されている。このルーフスラブｉｏｘは下面周縁部を
円筒状のスカート１０３を介して周囲の基礎１０４に支
持されて匹る。上記原子炉容器１０１はルーフスラｆ１
０２の下面側に吊下されている。そして、原子炉容器１
０１内には炉心１０５が設けられ一次冷却材４ンｆｚｏ
ｔ；、中間熱交換機１０７、炉心上部機構１０ｇおよび
冷却材としての液体ナトリウム１０９が収容されている
。Figure 4 shows the schematic configuration of a tank-type high-speed enrichment furnace.
In the figure, 101 is a reactor vessel, and this reactor vessel 10
1 is shielded by a roof slab 103 as an upper shield. This roof slab iox is supported by a surrounding foundation 104 via a cylindrical skirt 103 at its lower peripheral edge. The reactor vessel 101 has a roof slab f1.
It is suspended from the bottom side of 02. And reactor vessel 1
A reactor core 105 is installed inside the reactor core 105, and the primary coolant 4fzo
t;, an intermediate heat exchanger 107, an upper core mechanism 10g, and liquid sodium 109 as a coolant are accommodated.
上記ルーフスラブ１０２の中央部には第５図の如く円形
開口部１１０が設けられ、この開口部１１０ｔｌＣは回
絵グヲグ１１１が嵌合されている。As shown in FIG. 5, a circular opening 110 is provided in the center of the roof slab 102, and a rotating gear 111 is fitted into this opening 110tlC.
そして、この回転グラブ１１１に上記炉心上部機構１０
８および制御棒駆動機構１１２が支持されている。この
制御棒駆動機構１１２は制御棒（１示せず）を炉心１０
６に対して上方よシ挿入・引抜して炉出力を制御するよ
うに４１１１成されている。Then, the core upper mechanism 10 is attached to this rotating grab 111.
8 and a control rod drive mechanism 112 are supported. This control rod drive mechanism 112 drives control rods (1 not shown) into the reactor core 10.
4111 is configured to control the furnace output by inserting and withdrawing the upper part from the upper part of the reactor 6.
第５区はルーフスラブ１０１の平面図であって、このル
ーフスラブ１０２は中央部に上記回転プラグ１１１を嵌
合させる円形開口部１１０を有する円盤形に形成されて
い、６．そして、上記円形開口部１１０の周囲には上記
−次冷却材ボング１０６、中間熱交換機１０７等を支持
するための透孔１１３・・・が設けら７ｔている。そし
て、このルーフスラブ１０２は第６図に示すように同一
形状をなす上面板１１４と中間板１１５とで円筒形をな
すリブ板１１６＊、１１６ｂ＋１１６ｃ、１１６４．１
１６ｍおよび補強板１１７・・・と金挾んで溶接して接
合し、また中間板１１５の下面−には外径がやや小径の
下面板１１８が上記リブ板１１６１・・・および補強板
１１７・・・を挾んでＳ接により接合されている。The fifth section is a plan view of the roof slab 101, and the roof slab 102 is formed into a disk shape having a circular opening 110 in the center into which the rotary plug 111 is fitted;6. Further, around the circular opening 110, there are provided 7t through holes 113 for supporting the secondary coolant bong 106, intermediate heat exchanger 107, etc. As shown in FIG. 6, this roof slab 102 has rib plates 116*, 116b+116c, and 1164.1 that form a cylindrical shape with a top plate 114 and an intermediate plate 115 that have the same shape.
16m and the reinforcing plates 117... and are joined by welding with metal clamps, and on the lower surface of the intermediate plate 115, a lower plate 118 with a slightly smaller outer diameter is attached to the rib plates 1161... and the reinforcing plates 117...・It is joined by S-contact by sandwiching it.
そして、上記上面板１１４、中間板７７１およひ下向板
１１８には上に２ａ孔１１３が設けら江この透孔１１３
の内向には円筒体１１９を浴接して上面板１１４と中間
板１１５との閣、および中間板１１ｊと下面板１１８と
の間を密閉構造としている。また、上記リブ板１１６１
・・・のうち最も内側の、すなわち円形開口部１１０の
ＪＩ］壁を形成する板材としてのリブ板１１６ａには他
の板材よシ板厚の厚いものが使用されている。The upper surface plate 114, the intermediate plate 771 and the downward plate 118 are provided with 2a holes 113 at the top.
A cylindrical body 119 is in contact with the inner surface of the cylindrical body to create a sealed structure between the upper plate 114 and the intermediate plate 115, and between the intermediate plate 11j and the lower plate 118. In addition, the rib plate 1161
The rib plate 116a, which is the plate material forming the innermost wall of the circular opening 110, is thicker than other plate materials.
そして、上記構成のものは次のような作用効果を奏する
。すなわち、上記ルーフスラブ１０２を形成している板
材のうち中央部の円形開口部１１０の周壁を形成するリ
ブ板１１６１は他の板材よシ板厚が厚くなっておシ、シ
かもこのリブ板１１＃ａはルーフスラブ１０２の支持部
である外周部から最も離れた位置にある。したがって、
他のリブ板１１６ｂ・・・の板厚を増加させるよシリプ
板１１６ａの板厚を増加させた方がルーフスラブ１０２
全体の断面係数をより多く増加させることができ、最小
の重量増加で最もことができる。よって最小の重Ｉｋ増
加によシ、万一の地襄発生時に４ルーフス２プ１０２の
上下方向の振−を小さくすることができ、制御棒の炉心
１０５に対する相対位置の変化を防止して炉出力の訂」
御を正常に行なうことができる。The above structure has the following effects. That is, among the plate materials forming the roof slab 102, the rib plate 1161 forming the peripheral wall of the circular opening 110 in the center is thicker than other plate materials. #a is located at the farthest position from the outer peripheral portion, which is the support portion of the roof slab 102. therefore,
It is better to increase the thickness of the rib plate 116a than to increase the thickness of the other rib plates 116b... in the roof slab 102.
The overall section modulus can be increased more and the most possible with the least weight increase. Therefore, by minimizing the increase in weight Ik, it is possible to reduce the vertical vibration of the 4-roof 2sp 102 in the event of an earthquake, preventing changes in the relative position of the control rods to the reactor core 105, and "Output correction"
can operate normally.
な−・、本発明のタンク形高速増殖炉は上記−・実施例
に限定される吃のではない。たとえばルーフスラブ１０
２はリブ板１１６＆の板厚を増加させたものに限らず、
第７図に示すように、上面板１１４、下面板１１５のう
ち上記円形開口５１１０の周辺部分の板厚を増加させて
ルーフスラｆｚｏ２の剛性をさらに向上させたものでも
よい。′また、本発明はルーフスラブ１ｏ２の外周部を
支持し、ルーフスラブ１０２の下面側に原子炉容器１０
１を吊下するようにしたタンク形高速増殖炉にのみ適用
されるものではなく他の形式のものにも適用できる。
１〔発明の効果〕
本発明によるタンク形高速増殖炉は、原子炉容器の上部
を遮蔽する上部遮蔽体の断面係叙を増加させかつ上部遮
蔽体の重量増加を極力少なくするようにしたものである
。したがって、上部遮蔽体の剛性を有効に増加させるこ
とができ地層時の上部遮蔽体の上下方向の振幅を小さく
して地震時にも制御棒による炉出力の制御を正常に行な
うことができ、その効果は大である。However, the tank-type fast breeder reactor of the present invention is not limited to the above embodiments. For example, roof slab 10
2 is not limited to the one in which the thickness of the rib plate 116 & is increased;
As shown in FIG. 7, the rigidity of the roof slat fzo2 may be further improved by increasing the thickness of the upper surface plate 114 and the lower surface plate 115 at the portions surrounding the circular opening 5110. 'Furthermore, the present invention supports the outer peripheral part of the roof slab 1o2, and the reactor vessel 10 is placed on the lower surface side of the roof slab 102.
The present invention is applicable not only to tank-type fast breeder reactors in which 1 is suspended, but also to other types of reactors.
1 [Effects of the Invention] The tank-type fast breeder reactor according to the present invention is designed to increase the cross-sectional coverage of the upper shield that shields the upper part of the reactor vessel and to minimize the increase in weight of the upper shield. be. Therefore, the rigidity of the upper shield can be effectively increased, and the vertical amplitude of the upper shield can be reduced when the upper shield is in a geological formation, so that the control rods can normally control the reactor output even in the event of an earthquake. is large.
第１図ないし第３図は従来のタンク形高速増殖炉を説明
する図でおって、第１図はタンク形高速増殖炉の構成図
、第２図はルーフスラブ１の平面図、第３図は第２図の
ＩＩＩ−Ｉ断面図である。
第４図ないし第６図は本発明の一実施例を説明する図で
あって、第４図はタンク形高速増熾炉の構成図、第５図
はルーフスラブ１０１の平面図、第６図は第５図のＩＶ
−■断面図である。
＠７区は本発明の変形例を示す縦断面図でおる。
１０１・・・原子炉容器、１０１・・・ルーフスラブ（
ｉ部遮蔽体）、１０１・・・スカート、１０４・・・基
礎、ｌｌｌ５・・・炉心、１ｆｊ６・・・−次冷却材４
ング、１０１・・・中間熱交換機、１１０・・円形−口
部、１１１・・・回転プラグ、１１２・・・制御棒部（
機構、１１４・・・上面板、１１，５・・・中間板、７
１１）・・・下面板、１１６１〜１１６・・・・リブ板
、１１７・・・補強板。
出−八代帰人 弁理士 鈴 江 ｔ 彦第１図
第２図
第４図Figures 1 to 3 are diagrams explaining a conventional tank-type fast breeder reactor, in which Figure 1 is a block diagram of the tank-type fast breeder reactor, Figure 2 is a plan view of the roof slab 1, and Figure 3 is a diagram illustrating a conventional tank-type fast breeder reactor. is a sectional view taken along line III-I in FIG. 2; 4 to 6 are diagrams illustrating one embodiment of the present invention, in which FIG. 4 is a block diagram of a tank-type high-speed enrichment furnace, FIG. 5 is a plan view of the roof slab 101, and FIG. is IV in Figure 5.
−■ It is a sectional view. Section @7 is a longitudinal sectional view showing a modification of the present invention. 101...Reactor vessel, 101...Roof slab (
i part shield), 101...Skirt, 104...Foundation, lll5...Core, 1fj6...-Next coolant 4
101... Intermediate heat exchanger, 110... Circular mouth part, 111... Rotating plug, 112... Control rod part (
Mechanism, 114... Top plate, 11, 5... Intermediate plate, 7
11)... Bottom plate, 1161-116... Rib plate, 117... Reinforcement plate. Ex-Yatsushiro returnee Patent attorney T. Hiko Suzue Figure 1 Figure 2 Figure 4
Claims (2)
機および冷却材を収容する原子炉容器と、この原子炉容
器の上部を遮蔽し板材を接合して形成され中央部に回転
！フグを嵌合式せる円形開口部を有しこの円形開口部の
周辺を形成する板材の板厚を増加させて断面係数を増加
δせ九上部遮蔽体とｔ−具備したことを特値とするタン
ク形高速増燻炉・(1) It is formed by breaking down the reactor core and accommodating the primary coolant pump, intermediate heat exchanger, and coolant inside the reactor vessel, and the upper part of this reactor vessel is shielded and joined with plate materials, and rotates in the center! A special feature of this tank is that it has a circular opening into which a blowfish can be fitted, and that the section modulus is increased by increasing the thickness of the plate material forming the periphery of this circular opening. Type high speed smoker
うち円形開口部の周壁を形成する＆桐の板厚を増加させ
て断面係数を増加させたことを特値とする前記％ｆＦ請
求の蛇囲第（１）項記載のタンク形高速増殖炉。(2) The above-mentioned upper shield is formed of the peripheral wall of the circular opening among the board materials of the rope side of the circular opening & the special value is that the section modulus is increased by increasing the thickness of the paulownia wood plate. A tank-type fast breeder reactor according to item (1) of claim fF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051023A JPS58168993A (en) | 1982-03-31 | 1982-03-31 | Tank type fast breeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57051023A JPS58168993A (en) | 1982-03-31 | 1982-03-31 | Tank type fast breeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58168993A true JPS58168993A (en) | 1983-10-05 |
Family
ID=12875200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57051023A Pending JPS58168993A (en) | 1982-03-31 | 1982-03-31 | Tank type fast breeder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58168993A (en) |
-
1982
- 1982-03-31 JP JP57051023A patent/JPS58168993A/en active Pending
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