JPS6136637B2 - - Google Patents
Info
- Publication number
- JPS6136637B2 JPS6136637B2 JP55006826A JP682680A JPS6136637B2 JP S6136637 B2 JPS6136637 B2 JP S6136637B2 JP 55006826 A JP55006826 A JP 55006826A JP 682680 A JP682680 A JP 682680A JP S6136637 B2 JPS6136637 B2 JP S6136637B2
- Authority
- JP
- Japan
- Prior art keywords
- control rod
- drive mechanism
- rod drive
- attachment
- bolt
- 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.)
- Expired
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 description 7
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005855 radiation Effects 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
- Pressure Vessels And Lids Thereof (AREA)
Description
【発明の詳細な説明】
本発明は制御棒駆動機構交換装置に係り、特に
制御棒駆動機構の取付け、取外しを行う着脱装置
の駆動源であるモータの取付け構造に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a control rod drive mechanism replacement device, and more particularly to a mounting structure for a motor that is a drive source for an attachment/detachment device that attaches and detaches a control rod drive mechanism.
まず図面によつて従来構造を説明する。第１図
において、原子炉の圧力容器１は格納容器２内に
配置されたペテスタル３上に据付けられている。
圧力容器１の下部には制御棒駆動機構ハウジング
４及び中性子束計測用ハウジング５が突出して設
けられ、圧力容器１の一部分を形成している。制
御棒駆動機構６は制御棒駆動機構ハウジング４内
に収納される。ペデスタル３内の圧力容器１の下
方には空間７が形成され、またペデスタル３には
制御棒駆動機構６を空間７内に出入れする搬出入
口８が設けられている。空間７内のペデスタル３
の側壁にはブラケツト９が突出して設けられ、ブ
ラケツト９の上部には環状のレール１０が敷設さ
れている。制御棒駆動機構交換装置１２は前期レ
ール１０上を移動する旋回移動装置１１及び着脱
装置１３並びに取扱装置１４から構成されてい
る。また着脱装置１３は走行台車１５及び着脱ヘ
ツド１６から構成され、制御棒駆動装置マウンテ
イングボルトの着脱、アンカツプリングの確認、
ドレン処理、着脱ヘツドの昇降等の機能を有し、
制御棒駆動機構ハウジング４への制御棒駆動機構
６の取付け、取外しを行うことができる。取扱装
置１４は走行台車１７及びマスト１８から構成さ
れ、前記着脱装置１３で取外した制御棒駆動機構
６の受取り、受渡し及び横転機能を有している。
この取扱装置１４により横転された制御棒駆動機
構６は運搬用カート２１に保持積載され、ペデス
タル３の搬出入口８からブリツジ１９を介して格
納容器２の貫通口２０を通り搬出される。 First, a conventional structure will be explained with reference to the drawings. In FIG. 1, a pressure vessel 1 of a nuclear reactor is installed on a petestal 3 disposed within a containment vessel 2. In FIG.
A control rod drive mechanism housing 4 and a neutron flux measurement housing 5 are provided in a protruding manner at the bottom of the pressure vessel 1 and form a part of the pressure vessel 1 . The control rod drive mechanism 6 is housed within the control rod drive mechanism housing 4. A space 7 is formed below the pressure vessel 1 within the pedestal 3, and the pedestal 3 is provided with an inlet/outlet 8 through which the control rod drive mechanism 6 is taken in and out of the space 7. Pedestal 3 in space 7
A bracket 9 is provided protruding from the side wall of the bracket 9, and an annular rail 10 is installed above the bracket 9. The control rod drive mechanism exchange device 12 is composed of a swing movement device 11 that moves on the first rail 10, an attachment/detachment device 13, and a handling device 14. The attachment/detachment device 13 is composed of a traveling trolley 15 and an attachment/detachment head 16, and is used to attach/detach control rod drive unit mounting bolts, check anchor springs, etc.
It has functions such as drain processing and lifting and lowering the detachable head.
The control rod drive mechanism 6 can be attached to and removed from the control rod drive mechanism housing 4. The handling device 14 is composed of a traveling truck 17 and a mast 18, and has the functions of receiving, delivering, and overturning the control rod drive mechanism 6 that has been removed by the attachment/detachment device 13.
The control rod drive mechanism 6 that has been overturned by the handling device 14 is held and loaded on a transport cart 21, and is carried out from the carrying-out port 8 of the pedestal 3 via the bridge 19 and through the through-hole 20 of the containment vessel 2.
第２図は着脱ヘツド１６の詳細を示す縦断面図
で、着脱ヘツド１６はボルト着脱部２２、ドレン
機構部２３、制御棒駆動機構６と制御棒（図示し
ない）のアンカツプリング機構部２４及びアンカ
ツプリング検出機構部２５から構成されている。
そしてこの図は交換対象の制御棒駆動機構６に着
脱装置１３が位置決めされ、着脱ヘツド１６が制
御棒駆動機構６に接続した状態を示している。こ
の位置からエアモータ２６を駆動させる。エアモ
ータ２６の駆動力は出力軸２７と結合したスリー
ブ２８を介しボルトレンチ２９に伝達され、マウ
ンテイングボルト３０を緩めあるいは締め操作す
るように構成されている。マウンテイングボルト
３０は約50Kg・ｍの締付力により制御棒駆動機構
６を取付けている。 FIG. 2 is a longitudinal cross-sectional view showing the details of the detachable head 16, which includes the bolt attachment/detachment part 22, the drain mechanism part 23, the control rod drive mechanism 6, the anchor spring mechanism part 24 of the control rod (not shown), and the anchor. It is composed of a pull detection mechanism section 25.
This figure shows a state in which the attachment/detachment device 13 is positioned on the control rod drive mechanism 6 to be replaced, and the attachment/detachment head 16 is connected to the control rod drive mechanism 6. The air motor 26 is driven from this position. The driving force of the air motor 26 is transmitted to a bolt wrench 29 via a sleeve 28 coupled to an output shaft 27, and is configured to loosen or tighten a mounting bolt 30. The control rod drive mechanism 6 is attached to the mounting bolt 30 with a tightening force of approximately 50 kg·m.
第３図はエアモータ２６取付構造を示し、エア
モータ２６はハウジング３１にボルト３２によつ
て取付けている。 FIG. 3 shows a mounting structure for the air motor 26, in which the air motor 26 is mounted to a housing 31 with bolts 32.
さて、上述した如くマウンテイングボルト３０
の締付力は約50Kg・ｍと非常に大であり、経年に
よるさび発生などの原因によりその緩めに要する
回転力は最大100Kg・ｍと考えられている。した
がつてエアモータ２６を着脱ヘツド１６のハウジ
ング３１に固定しているボルト３２にその反作用
として50〜100Kg・ｍの回転力が作用し、締め緩
み操作の繰返しによりボルト３２が次第に緩む現
象が発生した。 Now, as mentioned above, the mounting bolt 30
The tightening force is extremely high at approximately 50 kg・m, and due to factors such as rust formation over time, the rotational force required to loosen it is thought to be a maximum of 100 kg・m. As a reaction, a rotational force of 50 to 100 Kg.m was applied to the bolts 32 fixing the air motor 26 to the housing 31 of the detachable head 16, and as a result of repeated tightening and loosening operations, the bolts 32 gradually loosened. .
本発明は上記欠点を改善しようとしてなされた
もので、その目的とするところは、マウンテイン
グボルトの着脱の繰返しによつてエアモータの取
付ボルトが緩むことのないようにすることにあ
る。 The present invention has been made to improve the above-mentioned drawbacks, and its purpose is to prevent the mounting bolts of the air motor from loosening due to repeated attachment and detachment of the mounting bolts.
本発明の制御棒駆動機構交換装置は、原子炉の
圧力容器にマウンテイングボルトを介して装着し
た制御棒駆動機構の取付け、取外しを行う着脱装
置を備え、該着脱装置は前記マウンテイングボル
ト着脱機能を有して前記圧力容器を据付けたペデ
スタル内に設けられ、かつ着脱装置のハウジング
にはマウンテイングボルト着脱用駆動源となるモ
ータが嵌合され、ボルトによつて固定されて成る
制御棒駆動機構交換装置において、前記ハウジン
グとモータとのボルト取付部における前記嵌合部
をいんろう構造とし、かつ両者を噛み合う構造と
したことを特徴とする。 The control rod drive mechanism exchange device of the present invention includes an attachment/detachment device for attaching and detaching a control rod drive mechanism attached to a pressure vessel of a nuclear reactor via a mounting bolt, and the attachment/detachment device has a function of attaching and detaching the mounting bolt. a control rod drive mechanism, which is provided in the pedestal on which the pressure vessel is installed, and in which a motor serving as a drive source for attaching and detaching the mounting bolt is fitted into the housing of the attaching/detaching device, and is fixed by the bolt. The exchange device is characterized in that the fitting portion in the bolt attachment portion between the housing and the motor has a spigot structure, and the two have a structure that meshes with each other.
以下本発明の一実施例を第４図及び第５図の着
脱装置の着脱ヘツドによつて説明する。２６Ａは
着脱ヘツド１６のハウジング３１Ａに取付けられ
たエアモータであり、このハウジング３１Ａとエ
アモータ２６Ａの取付面には噛み合う構造となつ
ているいんろう構造部（以下、単に、いんろう構
造部と称す。）３４が形成され、このいんろう構
造部３４で両者を嵌合すると共にボルト３２で一
体に固定している。２７はエアモータ２６Ａの出
力軸である。 An embodiment of the present invention will be described below with reference to the attachment/detachment head of the attachment/detachment device shown in FIGS. 4 and 5. 26A is an air motor attached to the housing 31A of the detachable head 16, and the mounting surface of the housing 31A and the air motor 26A have an interlocking structure (hereinafter simply referred to as the interlocking structure). 34 is formed, and the two are fitted together by this spigot structure 34 and fixed together with bolts 32. 27 is an output shaft of the air motor 26A.
エアモータ２６Ａを駆動して制御棒駆動機構
（図示せず）を交換する場合、出力軸２７の回転
力の反作用はいんろう構造部３４で受けるためボ
ルト３２には回転力が作用せず、したがつてボル
ト３２が緩むことはない。 When replacing the control rod drive mechanism (not shown) by driving the air motor 26A, the reaction force of the rotational force of the output shaft 27 is received by the spigot structure 34, so no rotational force acts on the bolt 32. The bolt 32 will not loosen.
第６図は第４図と異なるエアモータ２６Ａとハ
ウジング３１Ａとのいんろう構造部３４の他の実
施例であり、いんろう構造部３４にテーパ部３５
を形成したものである。 FIG. 6 shows another embodiment of the spigot structure 34 between the air motor 26A and the housing 31A, which is different from that in FIG.
was formed.
このテーパ部３５を設けることによりいんろう
構造部３４の接触がより確実である効果を有す
る。 Providing this tapered portion 35 has the effect of making the contact of the spigot structure portion 34 more reliable.
本発明によればエアモータの出力軸の回転力の
反作用がボルトに作用せずボルトの緩みを確実に
防止できる。このため、制御棒駆動機構交換作業
中における高放射線雰囲気中での保守、点検作業
を省くことができ、省力化及び放射線被曝作業低
減に寄与する。 According to the present invention, the reaction of the rotational force of the output shaft of the air motor does not act on the bolts, and loosening of the bolts can be reliably prevented. Therefore, maintenance and inspection work in a high radiation atmosphere during the control rod drive mechanism replacement work can be omitted, contributing to labor saving and reduction of radiation exposure work.
第１図は制御棒駆動機構交換装置の全体概要
図、第２図は着脱ヘツドの縦断面図、第３図は従
来のボルト着脱モータの取付部を示す縦断面説明
図、第４図は本発明ボルト着脱モータの取付部の
一実施例を示す縦断面説明図、第５図は第４図の
Ａ−Ａ断面視図、第６図は本発明ボルト着脱モー
タ取付部の他の実施例を示す縦断面説明図であ
る。
１……圧力容器、３……ペデスタル、６……制
御棒駆動機構、１３……着脱装置、２６Ａ……エ
アモータ、３１Ａ……着脱装置のハウジング、３
４……いんろう構造部、３５……テーパ部。
Figure 1 is an overall schematic diagram of the control rod drive mechanism replacement device, Figure 2 is a vertical sectional view of the attachment/detachment head, Figure 3 is a longitudinal sectional explanatory view showing the attachment part of a conventional bolt attachment/detachment motor, and Figure 4 is the main body. A vertical cross-sectional explanatory view showing one embodiment of the mounting part of the bolt-on/detached motor of the invention, FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4, and FIG. FIG. DESCRIPTION OF SYMBOLS 1... Pressure vessel, 3... Pedestal, 6... Control rod drive mechanism, 13... Attachment/detaching device, 26A... Air motor, 31A... Housing of attachment/detachment device, 3
4... Inro structure part, 35... Taper part.
Claims (1)
介して装着した制御棒駆動機構の取付け、取外し
を行う着脱装置を備え、該着脱装置は前記マウン
テイングボルト着脱機能を有して前記圧力容器を
据付けたペデスタル内に設けられ、かつ着脱装置
のハウジング内にはマウンテイングボルト着脱用
駆動源となるモータが嵌合され、ボルトによつて
固定されて成る制御棒駆動機構交換装置におい
て、前記ハウジングとモータとのボルト取付部に
おける前記嵌合部をいんろう構造とし、かつ両者
を噛み合う構造としたことを特徴とする制御棒駆
動機構交換装置。1.Equipped with an attachment/detachment device for attaching and detaching a control rod drive mechanism attached to a pressure vessel of a nuclear reactor via a mounting bolt, and said attachment/detachment device has a function of attaching and detaching said mounting bolt to install said pressure vessel. In a control rod drive mechanism exchange device, a motor serving as a drive source for attaching and detaching a mounting bolt is fitted in a housing of an attaching/detaching device and is installed in a pedestal, and is fixed by a bolt. A control rod drive mechanism exchange device, characterized in that the fitting portion of the bolt attachment portion has a spigot structure, and the two have a structure that engages with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP682680A JPS56104283A (en) | 1980-01-25 | 1980-01-25 | Exchanging device for control rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP682680A JPS56104283A (en) | 1980-01-25 | 1980-01-25 | Exchanging device for control rod drive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56104283A JPS56104283A (en) | 1981-08-19 |
| JPS6136637B2 true JPS6136637B2 (en) | 1986-08-19 |
Family
ID=11649015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP682680A Granted JPS56104283A (en) | 1980-01-25 | 1980-01-25 | Exchanging device for control rod drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56104283A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6395392A (en) * | 1986-10-09 | 1988-04-26 | 株式会社東芝 | Main flange mounting nut detachable device for internal pump |
| JPH0620313B2 (en) * | 1987-06-05 | 1994-03-16 | 日本電気株式会社 | On-screen circuit |
| JPH0638661B2 (en) * | 1987-10-02 | 1994-05-18 | 日本電気株式会社 | RGB interface circuit |
-
1980
- 1980-01-25 JP JP682680A patent/JPS56104283A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56104283A (en) | 1981-08-19 |
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