JPS58176578A - Wet mortor type control rod drive mechanism - Google Patents
Wet mortor type control rod drive mechanismInfo
- Publication number
- JPS58176578A JPS58176578A JP57059505A JP5950582A JPS58176578A JP S58176578 A JPS58176578 A JP S58176578A JP 57059505 A JP57059505 A JP 57059505A JP 5950582 A JP5950582 A JP 5950582A JP S58176578 A JPS58176578 A JP S58176578A
- Authority
- JP
- Japan
- Prior art keywords
- wet
- control rod
- motor
- rod drive
- mortor
- 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
- Saccharide Compounds (AREA)
- Multiple-Way Valves (AREA)
- Valve Device For Special Equipments (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】
本発明は、沸騰水ａ！！原子炉の制御棒駆動Ｗ＆電に係
り、特に駆動機にウェットモータを採用した制御棒駆動
装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention provides boiling water a! ! The present invention relates to a control rod drive W & electric for a nuclear reactor, and particularly to a control rod drive device that uses a wet motor as a drive unit.
第１図に示される従来の制御棒駆動装置は、原子炉圧力
容器底部ＩＫ据えつけられ、制御棒を下方から炉心内へ
挿入するために通常作動のための憧械的駆動＠電と急速
作動のための水圧値！１１を有している。機械的駆動装
置はモータ７によって回転されるネジ３と、回転しない
ように保持されて前記ネジ３に沿って長手方向に運動す
るナツト４を有した中空ｅ′スト／２よりなる。モータ
７とのシールのためにシール部材６を有し、シール水５
を注入している。しかしこのようなシール部材６は、あ
る期間原子炉が運転されると摩耗が生じ、放射性をおび
た水がシール部より漏れ一次冷却水が圧力容器外ｓＫ漏
洩する恐れがある。The conventional control rod drive device shown in Fig. 1 is installed at the bottom of the reactor pressure vessel in order to insert the control rods into the reactor core from below. Water pressure value for! It has 11. The mechanical drive consists of a hollow e'st/2 having a screw 3 rotated by a motor 7 and a nut 4 held against rotation and moving longitudinally along said screw 3. It has a seal member 6 for sealing with the motor 7, and has seal water 5.
is injected. However, such a sealing member 6 wears out when the reactor is operated for a certain period of time, and there is a risk that radioactive water may leak from the sealing portion and primary cooling water may leak out of the pressure vessel.
本発明の目的は、制御棒駆動装置のシールをなくし炉水
漏洩のＯＴ能性を小さくし２て信頼性の高い１’１ｔｌ
ｌ ＃禅駆勧装置を提供することにある。The purpose of the present invention is to eliminate the seal of the control rod drive device, reduce the OT possibility of reactor water leakage, and provide highly reliable 1'1tl.
l Our goal is to provide a Zen-inducing device.
前記目的を達成するために、駆動機にウェットモータを
採用し、シール部分をなくした。In order to achieve the above objective, a wet motor was adopted as the drive machine and the seal part was eliminated.
以下、本発明の実施ガを第２図により説明する。Hereinafter, the implementation of the present invention will be explained with reference to FIG.
従来と異なり図に示される制御棒駆動装置は、モータ７
がウェットモーターとなり、原子炉圧力容ａｉｍ長した
ハウジング８内に収まっている。Unlike the conventional control rod drive device shown in the figure, the motor 7
serves as a wet motor and is housed in a housing 8 with a length equal to the reactor pressure capacity.
ウェットモータは、モータシャフト９の上下にジャーナ
ルベアリングｌＯが配置され、転方向はスラストペ′ｒ
リング１１で支持されている。モータシャフト９は、モ
ータ巻８１２で生じるＩ４力により回転する。本実施列
によればねじ３とモータシャフト９は一体化していて、
七−夕と被駆ｗＪ部が）１． Ｐ Ｖ容器を延長したハ
ウジング８内に収まっているので構造が簡単になるとい
う効果がある。In the wet motor, journal bearings 1O are arranged above and below the motor shaft 9, and the direction of rotation is the thrust shaft 9.
It is supported by a ring 11. The motor shaft 9 is rotated by the I4 force generated by the motor winding 812. According to this embodiment, the screw 3 and the motor shaft 9 are integrated,
Tanabata and the driven wJ club) 1. Since it is housed in the housing 8 which is an extension of the PV container, it has the effect of simplifying the structure.
父、モータと被駆動部がハウジング８内に収まっている
ので従来と比較して炉水漏洩の可能性が小さくなるとい
う効果がある。Since the motor and driven parts are housed within the housing 8, there is an effect that the possibility of leakage of reactor water is reduced compared to the conventional method.
又、ウェットモータでは放射能をおびた炉水のモータ部
・＼の侵入を防ぐ九めにパージ水１３を注入する会費が
あるが、本発明によれば、急速作動のための水注入口と
かねることができるため、水注入配管の追設を行わなく
て良いという効果がある。In addition, with a wet motor, there is a fee for injecting purge water 13 at the ninth stage to prevent radioactive reactor water from entering the motor part, but according to the present invention, there is a water inlet for rapid operation. This has the effect of eliminating the need for additional water injection piping.
本＋発明によれば、シール部材を削除することができる
ので、放射性をおびた水の漏れを１厘する必較がなくな
り、原子炉の信頼性が向上するという幼果がある。According to the present invention, since the sealing member can be omitted, there is no need to worry about the leakage of radioactive water, and the reliability of the nuclear reactor is improved.
り
第１図は、従来の制御悼駆動装置の縦断面図、第２図は
、本発明の実Ｍ的であるウェットモー−型制御４４１駆
動装首の縦断面図。
１・・・原子炉圧力容器、２・・・中空ピストン、３・
・・ネジ、４・・・ナツト、５・・・シール水通路、６
・・・シール部材、７・・・モータ、８・・・ハウジン
グ、９・・・モータシャフト、ｌＯ川用ャーナルベ′ｒ
リング、１１・・・スラストペｒりング、１２・・・モ
ータｔＭＬ ｌａ・・・第１（２］
第２０FIG. 1 is a vertical cross-sectional view of a conventional control drive device, and FIG. 2 is a vertical cross-sectional view of a wet motor type control 441 driving neck according to the present invention. 1... Reactor pressure vessel, 2... Hollow piston, 3...
...Screw, 4...Nut, 5...Seal water passage, 6
...Seal member, 7...Motor, 8...Housing, 9...Motor shaft, lO river shaft'r
Ring, 11... Thrust ring, 12... Motor tML la... 1st (2) 20th
Claims (1)
方から挿入する装置と前記挿入装置を駆動する電動機か
らなる制御棒駆動装置において、電動機をウェットモー
タ型としたことを特徴とするウェットモータ型制＃捧駆
動装置。1. Control of a boiling water reactor - A control rod drive device comprising a device for inserting the control rod from below into the reactor and an electric motor for driving the insertion device, characterized in that the electric motor is of a wet motor type. Wet motor type dedicated drive device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059505A JPS58176578A (en) | 1982-04-12 | 1982-04-12 | Wet mortor type control rod drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57059505A JPS58176578A (en) | 1982-04-12 | 1982-04-12 | Wet mortor type control rod drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58176578A true JPS58176578A (en) | 1983-10-17 |
Family
ID=13115184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57059505A Pending JPS58176578A (en) | 1982-04-12 | 1982-04-12 | Wet mortor type control rod drive mechanism |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176578A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132194A (en) * | 1985-12-05 | 1987-06-15 | 株式会社東芝 | Electric control-rod drive mechanism for nuclear power plant |
-
1982
- 1982-04-12 JP JP57059505A patent/JPS58176578A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62132194A (en) * | 1985-12-05 | 1987-06-15 | 株式会社東芝 | Electric control-rod drive mechanism for nuclear power plant |
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