JPS6189584A - Driving mechanism of control rod - Google Patents
Driving mechanism of control rodInfo
- Publication number
- JPS6189584A JPS6189584A JP59210410A JP21041084A JPS6189584A JP S6189584 A JPS6189584 A JP S6189584A JP 59210410 A JP59210410 A JP 59210410A JP 21041084 A JP21041084 A JP 21041084A JP S6189584 A JPS6189584 A JP S6189584A
- Authority
- JP
- Japan
- Prior art keywords
- control rod
- drive mechanism
- rod drive
- piping
- extraction
- 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
- Vehicle Body Suspensions (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Threshing Machine Elements (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、沸ｎを木型原子炉の制御棒駆！ＩＪＪ１式（
ト冒こ係り、特に内部へ駆動水を給排する配管を１１１
ｉ強してなる制御棒駆動機構にＢ’ｌ ？Ｉる。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention provides a control rod drive for a wooden nuclear reactor. IJJ1 type (
Particularly, the piping for supplying and discharging driving water to the inside is 111.
B'l in the control rod drive mechanism formed by i? I.
（′Ｒ，明の技術的ｉ！’ｌ’姐）
一般に、沸騰水型原子炉にＪ３いては、原子炉圧力容器
下部に水圧制御ユニッ１−から給１ｊトされる駆動水に
よって駆動される制御棒駆動機構が設けられている。こ
の駆動水は水圧制御ユニット部にｄ５いて、ポンプにＪ
、って加圧され、その水圧制御−１ニツトから配管を通
して原子炉圧力容器の下部の制御棒駆動機（１℃まで送
られる。一方、駆動１１．冒こ刊本された水【よ、制御
棒駆動機構から配管を通しく水圧制御ユニットへ送られ
る。('R, Ming's technical i! 'l' 姐) Generally, in a boiling water reactor, the reactor is driven by driving water supplied from the water pressure control unit 1 to the lower part of the reactor pressure vessel. A control rod drive mechanism is provided. This driving water is supplied to the water pressure control unit section d5, and the pump is supplied with J
is pressurized and sent from the water pressure control unit to the control rod drive unit (1°C) at the bottom of the reactor pressure vessel through piping. It is sent from the drive mechanism to the water pressure control unit through piping.
第６図は、従来の制御棒駆動（幾構へ水圧制量−１ニッ
トから駆動水を給排する配管系を示しでいる１゜ＩＮＩ
御俸駆動にＩ Ｍｉ １は原子炉圧ツノ容器２の゛ト部
に設ＬＪられでおり、水圧制御ユニット３は原子炉格納
容器４の外側に設けられている。この水圧制御ユニツ（
・３内の駆動水は、駆動水ポンプ５により加圧され、そ
して挿入引抜配管６，７を介して原子炉格納容器４、ペ
デスタル８を日通して制御棒駆動機構１へ給排される。Figure 6 shows a conventional control rod drive (1° INI
The I Mi 1 is installed at the top of the reactor pressure vessel 2, and the water pressure control unit 3 is installed outside the reactor containment vessel 4. This water pressure control unit (
- The drive water in the control rod drive mechanism 3 is pressurized by the drive water pump 5, and is supplied to and discharged from the control rod drive mechanism 1 through the reactor containment vessel 4 and the pedestal 8 via the insertion/extraction pipes 6 and 7.
これらの挿入引抜配管６．７はかなり長距離に亘って配
設されており、制御棒駆動機構１の部分では他の制御棒
駆動機構１を内装した駆動機構ハウジング１ａ、ｌａの
間を通って配設されている。These insertion/extraction piping 6.7 is arranged over a fairly long distance, and in the control rod drive mechanism 1 part, it passes between the drive mechanism housings 1a and la containing other control rod drive mechanisms 1. It is arranged.
ところが、挿入引抜配管６．７のうち、ペデスタル８の
貫通部から制御棒駆ｆＪＪｍ構１までの部分は、伯の駆
動ＩＪ％？ハウジングｉａ、１ａの間を通って配設され
ており、この間隔が狭いので固定部からのザボートを設
ける等をして補強をすることができない。However, in the insertion/extraction piping 6.7, the portion from the penetration part of the pedestal 8 to the control rod drive fJJm structure 1 has a drive IJ%? It is arranged to pass between the housings ia and 1a, and since this gap is narrow, it is not possible to reinforce it by providing a support from the fixed part.
一方、原子炉は、事故時あるいは地震時等には、原子炉
を急速に停止する必要があるため、制御棒を急速挿入（
スクラム）させる。この時、制＠棒をスクラムさせるた
め制御棒駆動機構１に爆発的な高圧水が送給される。従
って、挿入引抜配管６゜７にも高圧水が流れ、大きな力
がかかることになり、特に、地震時にスクラムすると挿
入引抜配置″ｌ。On the other hand, control rods are rapidly inserted (
scrum). At this time, explosive high-pressure water is supplied to the control rod drive mechanism 1 to scram the control rods. Therefore, high-pressure water flows also into the insertion/pull-out piping 6.7, and a large force is applied to the insertion/pull-out piping 6.
６．７に作用する力も大変大きなものとなる。よつ−て
、挿入引抜配管６，７の補強（Ｉナボー１−）ができな
い原子炉圧力容器２の下部の部分は、他の部分とくらべ
、大ぎな力が作用することになり、強度的に大変きびし
い要求を受け、管径を１［（の部分より大きくしたり、
管肉厚を（ｌｑの部分よりｇくしたりしなければならな
い。The force acting on 6.7 is also very large. Therefore, the lower part of the reactor pressure vessel 2, where the insertion/extraction piping 6, 7 cannot be reinforced (I nabo 1-), will be subjected to a greater force than other parts, and the strength will be reduced. In response to very strict requirements, we made the pipe diameter larger than 1 [(),
The tube wall thickness must be made g greater than the 1q portion.
本発明はこれらの点に篤みてなされたものであり、従来
補強が不可能であった原子炉圧力容器の下部の挿入引抜
配管を補強することができ、事故時や地震時等にスクラ
ムした場合にその挿入引抜配管へ作用する力を軽減する
ことができ、安全性および信頼性の高い制御棒駆動機構
を提供ブることを目的とする。The present invention has been made with these points in mind, and it is possible to reinforce the insertion and withdrawal piping at the bottom of the reactor pressure vessel, which was conventionally impossible to reinforce, so that it can be used in the event of a scram during an accident or earthquake. The purpose of this invention is to provide a highly safe and reliable control rod drive mechanism that can reduce the force acting on the insertion and withdrawal piping.
本発明の制御棒駆動機構は、本体下部から駆動Ｒｈ’＋
５ハウジングに沿って立上がっている挿入引抜配管の立
上がり部を、上下方向動を許容しつつ水平方向動を抑え
る補強機構を設けたことを特徴とする。The control rod drive mechanism of the present invention drives Rh'+ from the bottom of the main body.
5. The present invention is characterized in that a reinforcing mechanism is provided for suppressing horizontal movement while allowing vertical movement of the rising portion of the insertion/extraction piping rising along the housing.
以下、本発明の実施例を第１図から第５図について説明
り゛る。Embodiments of the present invention will be described below with reference to FIGS. 1 to 5.
第１図（Ａ）（Ｂ）は本発明の第１の実施例を示す。FIGS. 1A and 1B show a first embodiment of the present invention.
本実燕例の制御棒駆動機構１０は、その下端フランジ１
０ｂから駆動機構ハウジング１０ａに添って立上がって
いる挿入引抜配管１１．１２の立上がり部分１１ａ、１
２ａの上部を補強ｄ構であるバンド１３によって、各配
管１１．１２と駆動８３ Ｎ４ハウジング１０ａとが直
接接触覆るのを防ぐバッド１４を挾持して駆動ｖ３椙ハ
ウジング１０ａに固定して形成されている。The control rod drive mechanism 10 of this example has a lower end flange 1
Rising portions 11a, 1 of the insertion/extraction piping 11.12 rising from 0b along the drive mechanism housing 10a
The band 13, which is a reinforcing structure, holds the pad 14 which prevents each pipe 11, 12 and the drive 83 housing 10a from coming into direct contact with each other, and is fixed to the drive housing 10a. There is.
この第１図に示Ｊ実施例においては、制御棒駆動（４構
１０へ水圧制御ユニツ］・３から高圧ａ駆動水を給排す
る挿入引抜配管１１，１２１；Ｌ、原子炉圧力容器２の
下部の部分において、駆動機構ハウジング１０ａに添っ
て立上がっている立上がり部分１１８．１２ａを右し、
この立上がり部分の上部を補強機構としてのバンド１３
により、バッド１４を介して駆動機１１がハウジング１
０ａに強固に固定されているため、スクラム時に＾圧な
駆動水が流通しても各配管１１．１２が振動することな
く、また、地震等の外力が作用しても各配管が大きく移
動することがない。さらに、各配管１１゜１２や駆！Ｉ
’、ｌ］殿構ハウジング１０ａが熱膨張しても、補強！
１構であるバンド１３が８配ｆｆ１１．１２ど駆！ｉｌ
Ｊ別構ハウジング１０ａの上下方向移動を許容するので
、各配管１１．１２や駆動改悟ハウジング１０ａ等に応
力が生じることがない。In the J embodiment shown in FIG. 1, insertion and withdrawal piping 11, 121; In the lower part, turn the rising part 118.12a rising along the drive mechanism housing 10a to the right,
The upper part of this rising part is a band 13 as a reinforcing mechanism.
As a result, the drive unit 11 is connected to the housing 1 via the pad 14.
Because it is firmly fixed at 0a, each pipe 11 and 12 does not vibrate even when high-pressure driving water flows during scram, and each pipe does not move significantly even when external forces such as earthquakes are applied. Never. Furthermore, each piping 11°12 and drive! I
', l] Even if the temple housing 10a expands due to thermal expansion, it will be reinforced!
Band 13, which is one structure, has an 8-distribution ff11.12 drive! il
Since the vertical movement of the J-separate housing 10a is allowed, stress is not generated in each piping 11, 12, the drive housing 10a, etc.
第２図（Ａ）（Ｂ）は本発明の第２の実施例を示し、駆
動機構ハウジング１０ａに添っている１１５人引１友配
管１１．１２の立上がり部分１１ａ、１２ａの上部を隣
り合うどうしの４本をまとめて、補強機構であるバンド
１３により一体的に締縛したものである。本実施例も、
前記実施例と同様に作用し、耐振動性、耐外力性に浸れ
てａ３す、各配色１１．１２等の熱膨張も許容する。FIGS. 2(A) and 2(B) show a second embodiment of the present invention, in which the upper portions of the rising portions 11a and 12a of the 115-pulling pipe 11 and 12 attached to the drive mechanism housing 10a are connected to each other. These four pieces are tied together by a band 13, which is a reinforcing mechanism. This example also has
It functions in the same manner as in the previous embodiment, and has excellent vibration resistance and external force resistance, and also allows thermal expansion of each color scheme 11, 12, etc.
第３１図は本発明の第３の実施例を示し、駆動低槽ハウ
ジング１０ａに添っている挿入引抜配管１１．１２の立
上がり部分１１ａ、１２ａの上部のうち、隣り合う２本
を間に補強材１５を挟んで補強桂１栴であるバンド１３
により固定したものである。本実施例も前記２実施例と
同様に作用する。FIG. 31 shows a third embodiment of the present invention, in which two adjacent of the upper parts of the rising portions 11a and 12a of the insertion/extraction piping 11. Band 13 which is reinforced Katsura 1 on both sides of 15
It is fixed by This embodiment also operates in the same manner as the above two embodiments.
第４図は、本発明の第４の実施例を示し、駆動８３ （
Ｍハウジング１０ａに添っている挿入引抜配管１１．１
２の立上がり部分１１ａ、１２ａの上部を、隣りあうど
うしずべて補強機構であるバンド１３により固定し、外
周部のバンド１３はペデスタル８の内面に固定する。本
実施例においては、バンド１３をペデスタル８に固着す
るので補強強度かより高くなる。FIG. 4 shows a fourth embodiment of the present invention, in which the drive 83 (
Insertion/extraction piping 11.1 attached to M housing 10a
The upper portions of the rising portions 11a and 12a of the pedestal 8 are fixed together by a band 13 which is a reinforcing mechanism, and the band 13 on the outer periphery is fixed to the inner surface of the pedestal 8. In this embodiment, since the band 13 is fixed to the pedestal 8, the reinforcing strength is higher.
第５図は、本発明の第５の実施例を示し、制御棒駆動機
構１０１７）沼下防止のため、サポートビーム１６から
ハンガロッド１７が垂下されているが、この号ボートビ
ーム１６から挿入引抜配管１１゜１２ヘサボー１〜１８
を垂下して各配管１１．１２を水平方向より挾持支承づ
ることにより固定したしのである。FIG. 5 shows a fifth embodiment of the present invention, in which a control rod drive mechanism (1017) is shown in which a hanger rod 17 is suspended from a support beam 16 to prevent swamping. 11゜12 Hesabo 1-18
The pipes 11 and 12 are fixed by hanging and supporting each pipe horizontally.
この第５の実施例においては、１ノボートビーム１６か
ら垂下したサポートにより各配管１１，１２を挾持支承
したので、前記各実施例と同様に各配管１１．１２が振
動するのを確実に防止することができる。また、クラン
プして固定されているので、各配管１１．１２が外力を
受けて６サポート１８により補強されているため強度的
に強い。In this fifth embodiment, each pipe 11, 12 is supported by a support hanging from a single boat beam 16, so that vibration of each pipe 11, 12 is reliably prevented as in each of the previous embodiments. can do. In addition, since the pipes 11 and 12 are clamped and fixed, each pipe 11 and 12 receives external force and is reinforced by the six supports 18, so that the pipes are strong.
また、配管ははさまれているだけなので、上下方向及び
配管の長手方向に自由なため、熱膨張による熱変位も許
容づる。Furthermore, since the piping is only sandwiched, it is free in the vertical direction and in the longitudinal direction of the piping, allowing for thermal displacement due to thermal expansion.
このように、本発明の制御棒駆動機構は、挿入引抜配管
のうち、従来原子炉圧力容器の下の部分の支持されてい
なかった部分を補強機構によって振動に強く、外ノ〕に
対しても強くなるように形成したので、事故時あるいは
地震時等においてスクラムしても、挿入引抜配管等が振
動することなく外力についても強くなり、スクラムを確
実に行なうことができ、信頼性および安全性が向上する
等の効果を奏り−る。In this way, the control rod drive mechanism of the present invention has a reinforcement mechanism that strengthens the part of the insertion/extraction piping that was previously unsupported at the bottom of the reactor pressure vessel. Since it is formed to be strong, even if it is scrammed in the event of an accident or an earthquake, the inserted and withdrawn piping will not vibrate and will be strong against external forces, making it possible to perform scramming reliably and ensuring reliability and safety. It produces effects such as improvement.
第１図から第５図は本発明の制御棒駆動Ｒｔ５ｉの実施
例を示し、第１図（Ａ）は一実施例の側面図、第１図（
Ｂ）は同図（Ａ）のＩｂ−１ｂ線に沿った断面図、第２
図（Ａ）（Ｂ）は他の実施例を示す第１図（Ａ＞ＣＢ）
ど同様の図、第３図および第４図はそれぞれ更に使の実
施例を示す第１図（Ｂ）と同様の図、第５図（Ａ）は更
に他の実施例を示ず側面図、第５図（Ｂ）は同図（Ａ）
の右側面図、第６図は従来の制御棒駆動機構と水圧制御
ユニットとの連結状態を示ず概略断面図である。
３・・・水圧制御ユニツｌ−１１０・・・制御棒駆動機
（１へ、１０ａ・・・駆動機構ハウジング、１１．１２
・・・挿入引抜配管、１１ａ、１２ａ・・・立上がり部
、１３・・・バンド、１６・・・サポートビーム、１８
・・・サポート。
第１図
（Ａ）
第２図
（Ａ）
第３図
第４図
１０Ｇ ｌ（、）０
第５図
第６図1 to 5 show an embodiment of the control rod drive Rt5i of the present invention, FIG. 1(A) is a side view of one embodiment, and FIG.
B) is a cross-sectional view taken along line Ib-1b in the same figure (A),
Figures (A) and (B) are Figure 1 showing other embodiments (A>CB)
FIGS. 3 and 4 are similar views to FIG. 1(B) showing further embodiments, and FIG. 5(A) is a side view without showing another embodiment; Figure 5 (B) is the same figure (A)
The right side view and FIG. 6 are schematic cross-sectional views that do not show the connection state between the conventional control rod drive mechanism and the hydraulic control unit. 3... Water pressure control unit l-110... Control rod drive machine (to 1, 10a... Drive mechanism housing, 11.12
...Insertion and extraction piping, 11a, 12a...rising portion, 13...band, 16...support beam, 18
···support. Figure 1 (A) Figure 2 (A) Figure 3 Figure 4 10G l(,)0 Figure 5 Figure 6
Claims (1)
挿入引抜配管が、その先端部を制御棒駆動機構の本体下
部に接続されるとともに駆動機構ハウジングの外側に沿
うようにして立上がらせて配設された制御棒駆動機構に
おいて、前記挿入引抜配管の立上がり部を上下方向動を
許容しつつ水平方向動を抑える補強機構を設けたことを
特徴とする制御棒駆動機構。 ２、補強機構は、複数の挿入引抜配管を立上がり部にお
いてバンドにより相互に締縛することにより形成されて
いることを特徴とする特許請求の範囲第１項記載の制御
棒駆動機構。 ３、補強機構は、サポートビームから垂下したサポート
により挿入引抜配管を水平方向より挾持して支承するよ
うに形成されていることを特徴とする特許請求の範囲第
１項記載の制御棒駆動機構。[Claims] 1. An insertion/removal pipe for supplying and discharging drive water led out from the hydraulic control unit has its tip connected to the lower part of the main body of the control rod drive mechanism and extends along the outside of the drive mechanism housing. The control rod drive mechanism is provided with a reinforcing mechanism that allows vertical movement of the rising portion of the insertion/extraction pipe while suppressing horizontal movement. . 2. The control rod drive mechanism according to claim 1, wherein the reinforcing mechanism is formed by mutually binding a plurality of insertion/extraction pipes with a band at a rising portion. 3. The control rod drive mechanism according to claim 1, wherein the reinforcing mechanism is formed so as to horizontally sandwich and support the insertion/extraction piping by supports hanging from the support beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59210410A JPS6189584A (en) | 1984-10-09 | 1984-10-09 | Driving mechanism of control rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59210410A JPS6189584A (en) | 1984-10-09 | 1984-10-09 | Driving mechanism of control rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6189584A true JPS6189584A (en) | 1986-05-07 |
Family
ID=16588852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59210410A Pending JPS6189584A (en) | 1984-10-09 | 1984-10-09 | Driving mechanism of control rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6189584A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264979B1 (en) * | 1994-05-10 | 2001-07-24 | Pal Svedman | Transdermal device for administration through de-epithelialized skin |
| JP2012112893A (en) * | 2010-11-26 | 2012-06-14 | Hitachi Plant Technologies Ltd | Pipe support, attachment fixture of pipe support and attachment method of pipe support |
-
1984
- 1984-10-09 JP JP59210410A patent/JPS6189584A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6264979B1 (en) * | 1994-05-10 | 2001-07-24 | Pal Svedman | Transdermal device for administration through de-epithelialized skin |
| JP2012112893A (en) * | 2010-11-26 | 2012-06-14 | Hitachi Plant Technologies Ltd | Pipe support, attachment fixture of pipe support and attachment method of pipe support |
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| US6563900B2 (en) | Ring plate around openings in reinforced concrete containment vessel | |
| JPS60222793A (en) | Nuclear reactor structure | |
| JPS5892892A (en) | Reactor pressure container | |
| JPS60117191A (en) | Tank type fast breeder reactor | |
| JPS62132199A (en) | Connecting structure of exhaust pipe for main-steam relief safety valve of nuclear reactor container | |
| JPS63118691A (en) | Nuclear reactor container | |
| JPS58179393A (en) | Reactor building | |
| JPS5810695A (en) | Stabilizer for monitor guide tube of neutron flux | |
| JPS61153585A (en) | Fast breeder reactor | |
| JPS6193997A (en) | Turbine housing | |
| JPS593293A (en) | Fast breeder container | |
| JPS6232391A (en) | Pressure vessel for nuclear reactor |