JPH01189595A - Fixing structure of nuclear reactor vessel - Google Patents
Fixing structure of nuclear reactor vesselInfo
- Publication number
- JPH01189595A JPH01189595A JP63013658A JP1365888A JPH01189595A JP H01189595 A JPH01189595 A JP H01189595A JP 63013658 A JP63013658 A JP 63013658A JP 1365888 A JP1365888 A JP 1365888A JP H01189595 A JPH01189595 A JP H01189595A
- Authority
- JP
- Japan
- Prior art keywords
- reactor vessel
- vessel
- pedestal
- bolts
- mounting
- 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
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 238000003754 machining Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 4
- 239000002826 coolant Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 238000003466 welding Methods 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
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は原子力発電プラントの原子炉容器に係り、特に
高速増殖炉の原子炉容器の取付構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a reactor vessel for a nuclear power plant, and particularly to a mounting structure for a reactor vessel for a fast breeder reactor.
（従来の技術）
従来、発電出力の増大に伴い原子炉容器の径寸法および
ｌｆｆ１が共に増大するため、経済性向上の要求から原
子炉容器の取付構造について種々の構造が開発されて来
た。従来の典型的取付構造としては、ペデスタル直付は
方式、スカート支持方式およびリングガータ支持方式が
ある。(Prior Art) Conventionally, since both the diameter and lff1 of the reactor vessel increase with the increase in power generation output, various structures have been developed for the attachment structure of the reactor vessel in order to improve economic efficiency. Typical conventional mounting structures include the pedestal direct mounting method, the skirt support method, and the ring gutter support method.
ペデスタル直付は方式は第７図に示すように、原子炉容
器１の上部開口にルーフスラブ２が嵌合され、このルー
フスラブ２の中央部に回転プラグ３が回転自在に設けら
れる。原子炉容器１内には炉心４および冷却材６が収容
される。炉心４の上部には炉心上部機構７が設けられ、
この炉心上部機１ｌ１７は回転プラグ３に支持される。As shown in FIG. 7, the direct attachment of the pedestal involves a roof slab 2 fitted into the upper opening of the reactor vessel 1, and a rotary plug 3 rotatably provided in the center of the roof slab 2. A reactor core 4 and a coolant 6 are housed within the reactor vessel 1 . A core upper mechanism 7 is provided in the upper part of the reactor core 4,
This core upper machine 1l17 is supported by the rotating plug 3.
また、ルーフスラブ２にはポンプ８および熱交換器９が
支持される。原子炉容器１はルーフスラブ２の外周縁が
ペデスタル１０に直接支持されることにより支持される
。なお符号１１は安全容器を示す。Further, a pump 8 and a heat exchanger 9 are supported on the roof slab 2. The reactor vessel 1 is supported by the outer peripheral edge of the roof slab 2 being directly supported by the pedestal 10 . Note that numeral 11 indicates a safety container.
スカート支持方式は第８図に示すように、原子炉容器１
の上部開口にルーフスラブ２が設けられ、原子炉容器１
の上縁部外側にスカート１２が設けられる。スカート１
２はペデスタル１０に支持されると共に、取付ボルト１
３によりペデスタル１０に固定される。As shown in Figure 8, the skirt support method is used to support the reactor vessel 1.
A roof slab 2 is provided at the upper opening of the reactor vessel 1.
A skirt 12 is provided on the outside of the upper edge. skirt 1
2 is supported by the pedestal 10, and the mounting bolt 1
3, it is fixed to the pedestal 10.
リングガータ支持方式は第９図に示すように、原子炉容
器１の上縁部にフランジ１４が設けられ、このフランジ
１４がペデスタル１０に設けられたリングガータ１５に
支持されると共に、取付ボルト１６によりリングガータ
１５に固定される。As shown in FIG. 9, in the ring garter support system, a flange 14 is provided at the upper edge of the reactor vessel 1, and this flange 14 is supported by a ring garter 15 provided on the pedestal 10. It is fixed to the ring gutter 15 by.
（発明が解決しようとする課題）
タンク型高速増殖炉の場合、出力１００万ＫＷから１３
０万ＫＷ級の実用炉にあっては、原子炉容器１が直径１
６〜１９ｍを有する超大型器となる。従来の取付構造で
は、スカート１２やリングガータ１５等はさらに大口径
、超重量機器となり、物量増大、据付工事の困難度増大
や製造能力の限界の問題が生じる。また、構造が複雑と
なり、超大形器の場合信頼性が充分でないという問題が
生じる。(Problem to be solved by the invention) In the case of a tank-type fast breeder reactor, the output is 1 million KW to 13
In a 00,000 KW class practical reactor, the reactor vessel 1 has a diameter of 1
It is an extremely large vessel measuring 6 to 19 meters. In the conventional mounting structure, the skirt 12, ring gutter 15, etc. have a larger diameter and are extremely heavy equipment, which causes problems such as an increase in the amount of materials, an increase in the difficulty of installation work, and a limit in manufacturing capacity. Further, the structure becomes complicated, and in the case of an extremely large device, there arises a problem that reliability is insufficient.
ずなわちペデスタル直は方式の場合、構造は単純である
が、ルーフスラブ２の直径が増大すると、剛性確保のた
め厚肉化され、物量が増大するとともに、改械加工限界
を越える結果となる。また機械と土木の複合工事となる
ため、据付工事が困難である。In the case of the direct pedestal type, the structure is simple, but as the diameter of the roof slab 2 increases, the wall thickness increases to ensure rigidity, the amount of material increases, and the machining limit is exceeded. . In addition, installation work is difficult because it involves a combination of mechanical and civil engineering work.
また、スカート支持方式の場合には、同様に構造は単純
であり、据付工事は容易であるが、スカート形状の制約
上、取付フランジの外径が増大すると、重量が増大する
とともに、機械加工限界を越える結果となる。また、ス
カート１２および取付フランジは耐震強度上、高剛性が
必要であり、厚肉化により重量が増大する。In addition, in the case of the skirt support method, the structure is similarly simple and the installation work is easy, but due to the constraints of the skirt shape, if the outside diameter of the mounting flange increases, the weight increases and there are limits to machining. The result is more than . Further, the skirt 12 and the mounting flange need to have high rigidity for earthquake resistance, and thickening increases the weight.
リングガータ支持方式の場合には、原子炉容器１やルー
フスラブ２単体の直径を縮小することができ、物量の減
少を図ることができるとともに、製造・運搬が容易であ
る。しかし、リングガータ１５の直径が増大し、剛性確
保のため厚肉化すると物量が増大し、機械加工限界を越
える結果となる。また、原子炉容器１をリングガータ１
５に据付ける構造が複雑となり、据付工事が繁雑となる
。In the case of the ring gutter support method, the diameter of the reactor vessel 1 and the roof slab 2 alone can be reduced, the amount of material can be reduced, and manufacturing and transportation are easy. However, if the diameter of the ring gutter 15 increases and the thickness is increased to ensure rigidity, the amount of material increases, resulting in exceeding the machining limit. In addition, the reactor vessel 1 is attached to the ring gutter 1.
5, the structure to be installed becomes complicated, and the installation work becomes complicated.
そのため、これらの問題を解決することができる原子炉
容器の取付構造の開発が望まれていた。Therefore, it has been desired to develop a mounting structure for a reactor vessel that can solve these problems.
本発明は上記の事情を考慮してなされたもので、構造が
簡単で、製造および据付が容易で、信頼性が高く、しか
も物量が少なく経済性が高い原子炉容器の取付構造を提
供することを目的とする。The present invention has been made in consideration of the above circumstances, and it is an object of the present invention to provide a mounting structure for a nuclear reactor vessel that has a simple structure, is easy to manufacture and install, is highly reliable, and has a small amount of materials and is highly economical. With the goal.
（課題を解決するための手段）
本発明に係る原子炉容器の取付構造は、原子炉容器の上
縁部に半径方向外方に突出した取付フランジが設けられ
、この取付フランジは補強リブにより補強される一方、
原子炉容器を囲んでペデスタルが設けられ、このペデス
タルに原子炉容器据付金物が設けられ、この原子炉容器
据付金物に上記取付フランジを介して原子炉容器が支持
されるとともに、原子炉容器の上縁部が多数の取付ボル
トによりペデスタルに固定され、上記取付ボルトはその
軸線の延長線が原子炉容器の軸心を通るように放射状に
かつ水平に設けられたものである。(Means for Solving the Problems) In the reactor vessel mounting structure according to the present invention, a mounting flange protruding radially outward is provided at the upper edge of the reactor vessel, and this mounting flange is reinforced with reinforcing ribs. On the other hand,
A pedestal is provided surrounding the reactor vessel, a reactor vessel installation hardware is provided on the pedestal, the reactor vessel is supported on the reactor vessel installation hardware via the mounting flange, and the reactor vessel is The edge is fixed to the pedestal by a large number of mounting bolts, and the mounting bolts are provided radially and horizontally so that the extension of their axis passes through the axis of the reactor vessel.
（作用）
原子炉容器は補強リブにより補強された取付フランジを
介して原子炉容器据付金物に支持され、原子炉容器の上
縁部が取付ボルトにより１ペデスタルに固定される。取
付ボルトはその軸線の延長線が原子炉容器の軸線を通る
ように放射状にかつ水平に設けられる。そのため、取付
ボルトは取付フランジに働く荷重を分散して分担するこ
とができる。したがって、構造が簡単で、製造および据
付が容易で、信頼性が高く、しかも物量が少なく経済性
が高い原子炉容器の取付構造を提供することができる。(Function) The reactor vessel is supported by the reactor vessel installation hardware via a mounting flange reinforced by reinforcing ribs, and the upper edge of the reactor vessel is fixed to one pedestal by a mounting bolt. The mounting bolts are provided radially and horizontally so that the extension of their axes passes through the axis of the reactor vessel. Therefore, the mounting bolts can distribute and share the load acting on the mounting flange. Therefore, it is possible to provide a reactor vessel mounting structure that has a simple structure, is easy to manufacture and install, is highly reliable, has a small amount of materials, and is highly economical.
（実施例）
本発明に係る原子炉容器の取付構造の一実施例について
図面を参照して説明する。(Embodiment) An embodiment of the reactor vessel mounting structure according to the present invention will be described with reference to the drawings.
第２図は本発明に係る原子炉容器の取付構造の一実施例
を備えたタンク型高速増殖炉を示す断面図である。第２
図において原子炉容器１の上部開口を覆ってルーフスラ
ブ２が設けられ、このルーフスラブ２の中央部に回転プ
ラグ３が回転可能に設けられる。原子炉容器１には炉心
４および冷却材６が収容される。炉心４の上部には炉心
上部機構７が設けられ、この炉心上部機構７は回転プラ
グ３に支持される。また、ルーフスラブ２にはポンプ８
および熱交換器９が搭載される。原子炉容器１の外周に
は安全容器１１が設けられ、この安全容器１１は取付フ
ランジ１８によりペデスタル１０に支持される。FIG. 2 is a sectional view showing a tank-type fast breeder reactor equipped with an embodiment of the reactor vessel mounting structure according to the present invention. Second
In the figure, a roof slab 2 is provided to cover the upper opening of a reactor vessel 1, and a rotary plug 3 is rotatably provided in the center of the roof slab 2. The reactor vessel 1 houses a reactor core 4 and a coolant 6. A core upper mechanism 7 is provided at the upper part of the reactor core 4 , and this core upper mechanism 7 is supported by the rotating plug 3 . Also, a pump 8 is installed on the roof slab 2.
and a heat exchanger 9 are installed. A safety vessel 11 is provided around the outer periphery of the reactor vessel 1, and this safety vessel 11 is supported on the pedestal 10 by a mounting flange 18.
原子炉容器１の上縁部には、第１図に示すように、吊り
スカート１９が形成されると共に、ルーフスラブ２が溶
接・結合されている。吊りスカート１９には半径方向外
方に突出した取付フランジ２０が設けられ、この取付フ
ランジ２０は補強リブ２１により補強される。As shown in FIG. 1, a hanging skirt 19 is formed on the upper edge of the reactor vessel 1, and a roof slab 2 is welded and connected thereto. The hanging skirt 19 is provided with a mounting flange 20 that projects radially outward, and this mounting flange 20 is reinforced by reinforcing ribs 21 .
一方、原子炉容器１を囲んでペデスタル１０が設けられ
、このペデスタル１０に原子炉容器据付金物２２が設け
られる。そして、この原子炉容器据付金物２２の上に、
調整ライナ２３を介して、取付フランジ２０により原子
炉容器１が支持される。さらに、吊りスカート１９は多
数の取付ボルト２４によりペデスタル１０に固定される
。取付ボルト２４は、第３図に示すように、その軸線の
延長線が原子炉容器１の軸心を通るように放射状にかつ
水平に設けられる。On the other hand, a pedestal 10 is provided surrounding the reactor vessel 1, and a reactor vessel installation hardware 22 is provided on this pedestal 10. Then, on this reactor vessel installation hardware 22,
The reactor vessel 1 is supported by a mounting flange 20 via an adjustment liner 23 . Furthermore, the hanging skirt 19 is secured to the pedestal 10 by a number of mounting bolts 24. As shown in FIG. 3, the mounting bolts 24 are provided radially and horizontally so that the extension of their axes passes through the axis of the reactor vessel 1.
なお、取付ボルト２４の組立作業を容易にし、かつ据付
完了後の取付構造の剛性強化のために、取付ボルト２４
のペデスタル１０側の端部に、−旦キュービクルを設け
ておき、原子炉容器１および取付ポル］・２４等の据付
終了後に、キユービクルを後打ちコンクリート２５で埋
める構造としている。In addition, in order to facilitate the assembly work of the mounting bolts 24 and to strengthen the rigidity of the mounting structure after the installation is completed, the mounting bolts 24 are
A cubicle is provided at the end of the reactor vessel 1 on the pedestal 10 side, and the cubicle is filled with post-cast concrete 25 after the installation of the reactor vessel 1, mounting pole 24, etc. is completed.
次に、原子炉容器１の取付構造の製造工程を第４図ない
し第６図を用いて説明する。Next, the manufacturing process of the mounting structure for the reactor vessel 1 will be explained using FIGS. 4 to 6.
まず、第４図に示すようにペデスタル１０をコンクリー
ト打設により製造し、同時に原子炉容器据付金物２２お
よびスリーブ２６を固定する。この際、取付ボルト２４
の組立作業を容易にするために、キユービクル２７を形
成しておく。その後、第５図に示すように原子炉容器１
を調整ライナ２３を介して原子炉容器据付金物２２上に
据え付ける。そして、吊りスカート１９を取付ボルト２
４によりペデスタル１０に固定する。取付ボルト２４は
スリーブ２６およびスリーブ２日を通して設けられ、吊
りスカート１９側およびキユービクル２７側からナツト
により固定される。取付ボルト２４の取付後は、第６図
に示すようにキユービクル２７に後打ちコンクリート２
５を埋め込み、取付構造の剛性を強化する。なお、第４
図ないし第６図においては、ペデスタル１０の配筋を省
略して示している。First, as shown in FIG. 4, the pedestal 10 is manufactured by pouring concrete, and at the same time, the reactor vessel installation hardware 22 and the sleeve 26 are fixed. At this time, attach the mounting bolt 24
A cubicle 27 is formed in order to facilitate the assembly work. After that, as shown in Fig. 5, the reactor vessel 1
is installed on the reactor vessel installation hardware 22 via the adjustment liner 23. Then, attach the hanging skirt 19 to the mounting bolt 2.
4 to fix it to the pedestal 10. The mounting bolts 24 are provided through the sleeve 26 and the sleeve 2, and are fixed with nuts from the suspension skirt 19 side and the cubicle 27 side. After installing the mounting bolts 24, post-cast concrete 2 is placed on the cubicle 27 as shown in FIG.
5 to strengthen the rigidity of the mounting structure. In addition, the fourth
In the figures through FIG. 6, the reinforcement of the pedestal 10 is omitted.
このように、上記実施例によれば、補強リブ２１により
補強された取付フランジ２０を介して原子炉容器１を原
子炉容器据付金物２２上に支持すると共に、吊りスカー
ト１９を取付ボルト２４によりペデスタル１０に固定し
、取付ボルト２４をその軸線の延長線が原子炉容器１の
軸心を通るように放射状にかつ水平に設けたから、原子
炉容器１の取付フランジ２０に働く荷重を、多数本の取
付ボルト２４が分散して分担することができる。As described above, according to the above embodiment, the reactor vessel 1 is supported on the reactor vessel installation hardware 22 via the mounting flange 20 reinforced by the reinforcing ribs 21, and the hanging skirt 19 is attached to the pedestal by the mounting bolts 24. 10, and the mounting bolts 24 are installed radially and horizontally so that the extension of their axes passes through the axis of the reactor vessel 1. Therefore, the load acting on the mounting flange 20 of the reactor vessel 1 is reduced by a large number of bolts. The mounting bolts 24 can be distributed and shared.
したがって、取付フランジ２０に生じる曲げモーメント
を小さく抑えることができ、各部分を薄肉化して原子炉
容器１の取付構造を小型化、軽量化することができると
共に、構造を簡単にすることができ、さらに物量を少な
くして経済性を高めることができ、信頼性を向上させる
ことができる。Therefore, the bending moment generated in the mounting flange 20 can be suppressed to a small level, each part can be made thinner, the mounting structure of the reactor vessel 1 can be made smaller and lighter, and the structure can be simplified. Furthermore, it is possible to improve economical efficiency by reducing the amount of material, and it is possible to improve reliability.
また、取イ４ボルト２４として普通の真直ぐな取付ポル
１−を用いることができ、コンクリートの曲がった配筋
を敷設する場合のような困難さもなく、また調整ライナ
２３上に据え付けるため、容易に据え付けることができ
、剛性の一層の強化のために、プレス１−レスを与える
ことも容易に行なうことができる。In addition, an ordinary straight mounting bolt 1- can be used as the mounting bolt 24, and there is no difficulty such as when laying curved concrete reinforcement, and since it is installed on the adjustment liner 23, it is easy to install. It can be easily installed and provided with a press 1-less for further reinforcement of rigidity.
また、精密機械加工を必要とするような超大形部量を用
いていないため、大形化に伴う製造能力の限界の問題も
回避することができる。さらに、原子炉容器１やルーフ
スラブ２の直径が小となり、′Ｉ！Ｊ造・運搬が容易と
なる。Furthermore, since extremely large parts that require precision machining are not used, the problem of limited manufacturing capacity due to increased size can be avoided. Furthermore, the diameters of the reactor vessel 1 and roof slab 2 become smaller, and 'I! Easy to construct and transport.
なお、上記実施例においては、原子炉容器１とルーフス
ラブ２の結合方式を、溶接による直接結合方式としたが
、本発明はこれに限定されず、他の結合方式であっても
よい。また、取付フランジ２０および補強リブ２１の形
状および相対位置関係も上記実施例に示したものには限
定されない。In the above embodiment, the reactor vessel 1 and the roof slab 2 are connected by a direct connection method by welding, but the present invention is not limited to this, and other connection methods may be used. Furthermore, the shapes and relative positions of the mounting flange 20 and reinforcing ribs 21 are not limited to those shown in the above embodiments.
補強リブ２１を吊りスカート１９の内周側に設けるよう
にしてもよい。さらに、取付ボルト２４の周囲に、設け
るスリーブ２６．２８の形状も上記実施例には限定され
ず、他の形状であってもよい。The reinforcing ribs 21 may be provided on the inner peripheral side of the hanging skirt 19. Further, the shape of the sleeves 26 and 28 provided around the mounting bolt 24 is not limited to the above embodiment, and may have other shapes.
（発明の効果〕
本発明に係る原子炉容器の取付構造は、原子炉容器の上
縁部に半径方向外方に突出した取付フランジが設けられ
、この取付フランジは補強リブにより補強される一方、
原子炉容器を囲ｌνでペデスタルが設けられ、このペデ
スタルに原子炉容器据付金物が設けられ、この原子炉容
器据付金物に上記取付フランジを介して原子炉容器が支
持されるとともに、原子炉容器の上縁部が多数の取付ボ
ルトによりペデスタルに固定され、上記取付ボルトはそ
の軸線の延長線が原子炉容器の軸心を通るように放射状
にかつ水平に設けられたから、取付フランジに働く荷重
を多数の取付ボルトが分散して分担することができ、取
付フランジに生じる曲げモーメントを小さく抑えること
ができる。したがって、構造が簡単で、製造および据付
が容易で、信頼性が高く、しかも物量が少なく、経演性
が高い原子炉容器の取付構造を提供することができる。(Effects of the Invention) In the reactor vessel mounting structure according to the present invention, a mounting flange protruding radially outward is provided at the upper edge of the reactor vessel, and this mounting flange is reinforced by reinforcing ribs, while
A pedestal is provided surrounding the reactor vessel, and a reactor vessel installation hardware is provided on this pedestal. The upper edge is fixed to the pedestal with a large number of mounting bolts, and the mounting bolts are installed radially and horizontally so that the extension of their axes passes through the axis of the reactor vessel, so that many loads are applied to the mounting flange. The mounting bolts can be distributed and shared, and the bending moment generated at the mounting flange can be kept small. Therefore, it is possible to provide a reactor vessel mounting structure that has a simple structure, is easy to manufacture and install, is highly reliable, has a small amount of materials, and is highly operable.
第１図は本発明に係る原子炉容器の取付構造の一実施例
を示す断面図、第２図は上記実施例を備えたタンク型高
速増殖炉を示す断面図、第３図は上記実施例において取
付ボルトの配置状態を示す断面図、第４図ないし第６図
は上記実施例の製造工程を示す工程図、第７図は従来の
ペデスタル直付は方式の取付構造を示す断面図、第８図
は従来のスカート支持方式の取付構造を示す断面図、第
９図は従来のリングガータ支持方式の取付構造を示す断
面図である。
１・・・原子炉容器、２・・・ルーフスラブ、１０・・
・ペデスタル、２０・・・取付フランジ、２１・・・補
強リブ、２２・・・原子炉容器据付金物、２４・・・取
付ボルト、２５・・・後打ちコンクリート。
出願人代理人 波 多 野 久第１図
第３図
第４図 第５図
第９図FIG. 1 is a sectional view showing an embodiment of the reactor vessel mounting structure according to the present invention, FIG. 2 is a sectional view showing a tank-type fast breeder reactor equipped with the above embodiment, and FIG. 3 is a sectional view showing the above embodiment. 4 to 6 are process diagrams showing the manufacturing process of the above embodiment. FIG. 7 is a sectional view showing the mounting structure of the conventional pedestal direct mounting method. FIG. 8 is a sectional view showing a conventional skirt support type mounting structure, and FIG. 9 is a sectional view showing a conventional ring garter support type mounting structure. 1... Reactor vessel, 2... Roof slab, 10...
- Pedestal, 20... Mounting flange, 21... Reinforcement rib, 22... Reactor vessel installation hardware, 24... Mounting bolt, 25... Post-cast concrete. Applicant's agent Hisashi Hatano Figure 1 Figure 3 Figure 4 Figure 5 Figure 9
Claims (1)
ンジが設けられ、この取付フランジは補強リブにより補
強される一方、原子炉容器を囲んでペデスタルが設けら
れ、このペデスタルに原子炉容器据付金物が設けられ、
この原子炉容器据付金物に上記取付フランジを介して原
子炉容器が支持されるとともに、原子炉容器の上縁部が
多数の取付ボルトによりペデスタルに固定され、上記取
付ボルトはその軸線の延長線が原子炉容器の軸心を通る
ように放射状にかつ水平に設けられたことを特徴とする
原子炉容器の取付構造。A radially outwardly projecting mounting flange is provided at the upper edge of the reactor vessel, and this mounting flange is reinforced by reinforcing ribs, while a pedestal is provided surrounding the reactor vessel, and the pedestal is provided with a pedestal that extends outwardly in the radial direction. Installation hardware is provided,
The reactor vessel is supported by this reactor vessel installation hardware via the above-mentioned mounting flange, and the upper edge of the reactor vessel is fixed to the pedestal with a large number of mounting bolts. A mounting structure for a nuclear reactor vessel, characterized in that it is installed radially and horizontally so as to pass through the axis of the reactor vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013658A JPH01189595A (en) | 1988-01-26 | 1988-01-26 | Fixing structure of nuclear reactor vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63013658A JPH01189595A (en) | 1988-01-26 | 1988-01-26 | Fixing structure of nuclear reactor vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01189595A true JPH01189595A (en) | 1989-07-28 |
Family
ID=11839303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63013658A Pending JPH01189595A (en) | 1988-01-26 | 1988-01-26 | Fixing structure of nuclear reactor vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01189595A (en) |
-
1988
- 1988-01-26 JP JP63013658A patent/JPH01189595A/en active Pending
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