JPS5946883A - Control rod drive control device - Google Patents
Control rod drive control deviceInfo
- Publication number
- JPS5946883A JPS5946883A JP57157711A JP15771182A JPS5946883A JP S5946883 A JPS5946883 A JP S5946883A JP 57157711 A JP57157711 A JP 57157711A JP 15771182 A JP15771182 A JP 15771182A JP S5946883 A JPS5946883 A JP S5946883A
- Authority
- JP
- Japan
- Prior art keywords
- control
- control rod
- selection
- rod drive
- signal
- 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.)
- Granted
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
- Monitoring And Testing Of Nuclear Reactors (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］
本発明は原子力発電所において、水圧制御により制御棒
の挿入、引抜きを行なう制御棒駆動機構装Ｖに関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a control rod drive mechanism V for inserting and withdrawing control rods by hydraulic control in a nuclear power plant.
原子力発電所における制御棒の挿入、引抜きは、通常、
水圧を利用した制御棒駆動制御装置によって行なわれる
。Insertion and withdrawal of control rods in nuclear power plants usually involve
This is done by a control rod drive control device that uses water pressure.
第１図は従来の制御棒駆動制御装置を例示するもので、
制御棒駆動水ポンプ１と各制御棒駆動機構 ２ａ ｔ
２ｂ・・・２ｎの間には、夫々水圧制御ユニツ） ３ａ
＋ ３ｂ・・・３ｎが介挿されている。Figure 1 illustrates a conventional control rod drive control device.
Control rod drive water pump 1 and each control rod drive mechanism 2a t
Between 2b...2n are water pressure control units) 3a
+ 3b...3n are inserted.
水圧制御ユニｙ ） ３ａ ｔ ３ｂ・・・３ｎは、い
ずれも４個の電磁弁４ｕｔ４ｖ＋４Ｗ＋４Ｘ を備え
ている。The water pressure control units y) 3a, 3b, . . . , 3n each include four electromagnetic valves 4ut4v+4W+4X.
これらの電磁弁４ｕ 、 ４ｖ 、 ４ｗ 、 ４ｘ
は２個ずつ直列に接続された上、導水配管５と排水配
管６との間に並列接続されており、制御棒駆動機構２ａ
ｔ ２ｂ・・・２ｎ は夫々、電磁弁４ｕと４ｖの
中間および電磁弁４ｗと４ｘの中間から分岐する引抜き
配管７と挿入配管８との間に接続されている。These solenoid valves 4u, 4v, 4w, 4x
are connected in series two by two, and are connected in parallel between the water supply pipe 5 and the drainage pipe 6, and the control rod drive mechanism 2a
t 2b...2n are connected between the extraction pipe 7 and the insertion pipe 8, which branch from the middle between the solenoid valves 4u and 4v and between the solenoid valves 4w and 4x, respectively.
なお、図示は省略しだが、各水圧制御ユニット３ｇ 、
３ｂ ・＝ ３ｎには電磁弁４ｕ ＋ ４Ｖ ＋ ４ｗ
＋ ４ｘ を開閉制御する制御回路が接続されてい
る。Although not shown, each water pressure control unit 3g,
3b ・= 3n has solenoid valve 4u + 4V + 4w
+4x is connected to a control circuit that controls opening and closing.
上述のように、従来の制御棒駆動制御装置では、各制御
棒駆動機構２ａ ＊ ２ｂ・・・２ｎ毎に４個の電磁弁
４ｕ ？ ４ｖ ｔ ４ｗ ｔ ４Ｘ を備えた水圧
制御ユニット３ａ＋３ｂ・・・３ｎが使用されていたた
め、電磁弁の必要個数が非常に多くなるという欠点があ
った。As mentioned above, in the conventional control rod drive control device, four electromagnetic valves 4u? Since the water pressure control units 3a+3b...3n equipped with 4v t 4w t 4X were used, there was a drawback that the required number of electromagnetic valves was extremely large.
即ち、制御棒の本数をＮ本とすると４Ｎ個の電磁弁を必
要とするので、例えば１８５本の制御棒を備えた１００
Ｍ Ｗｅ級の原子力発電所では７４０個の１１Ｌ磁弁と
１８５個の制御回路が必要となる・〔発明の目的〕
本発明は背型技術における上述の如き不都合を除去し、
電磁弁の必要個数を大巾に低減させてコストダウンを図
った制御棒駆動制御１１１装置を提供することを目的と
する。That is, if the number of control rods is N, 4N solenoid valves are required, so for example, 100 valves with 185 control rods are required.
An M We class nuclear power plant requires 740 11L solenoid valves and 185 control circuits. [Object of the Invention] The present invention eliminates the above-mentioned disadvantages in back type technology,
It is an object of the present invention to provide a control rod drive control 111 device in which the required number of solenoid valves is greatly reduced to reduce costs.
本発明の制御棒駆動制御装置は制御棒駆動水ポンプによ
って送り込まれた駆動水を制御して、共通配管を流れる
駆動水の方向を制御する方向制御ユニットと、この方向
制御ユニットを構成する４個の方向制御電磁弁に向けて
制御棒挿入信号と制御棒引抜き信号を出力する制御棒駆
動制御回路と、前記共通配管から分岐する引抜き配管お
よび挿入配管と各制御棒駆動機構との間に介挿した選択
ユニットと、これらの選択ユニットを構成する２個の選
択′ＷＬ磁弁に向けて制御棒選択信号を出力する制御棒
選択制御回路とから構成されている。The control rod drive control device of the present invention includes a direction control unit that controls drive water sent by a control rod drive water pump and controls the direction of the drive water flowing through a common pipe, and four units that constitute this direction control unit. A control rod drive control circuit that outputs a control rod insertion signal and a control rod withdrawal signal to the directional control solenoid valve, and a control rod drive control circuit that is inserted between the withdrawal pipe and insertion pipe branching from the common pipe and each control rod drive mechanism. The control rod selection control circuit outputs a control rod selection signal to the two selection WL magnetic valves constituting these selection units.
次に、第２図を参照して本発明の詳細な説明する。 Next, the present invention will be explained in detail with reference to FIG.
なお、第２図では第１図におけると同じ部材にはそれと
同一の符号を付しである。In FIG. 2, the same members as in FIG. 1 are given the same reference numerals.
制御棒駆動水ポンプ１によって導水配管５に送り込まれ
た駆動水は、４個の方向制御電磁弁１０ｕ。Driving water sent into the water guide pipe 5 by the control rod-driven water pump 1 is passed through four directional control solenoid valves 10u.
１０ｖ ＝ １０ｖ ｌｌ０Ｘを備えた方向制御ユニッ
ト１１を流れた後、排水配管６から排出される。10v = 10v After flowing through the direction control unit 11 with ll0X, it is discharged from the drain pipe 6.
方向制御電磁弁１０ｕ〜ＩＯＸは２個ずつ直列に接続さ
れた上、導水配管５と排水配管６の間に並列接続されて
おり、また直列接続した方向制御電磁弁１０ｕとｔＯＶ
の中間点およびｌＱｗと１０ｘの中間点には夫々、共通
配管１２ 、１３が接続されている。The directional control solenoid valves 10u to IOX are connected in series in pairs, and are also connected in parallel between the water supply pipe 5 and the drainage pipe 6, and the directional control solenoid valves 10u and tOV connected in series are connected in parallel.
Common pipes 12 and 13 are connected to the intermediate point between 1Qw and 10x, respectively.
これらの共通配管１２ 、１３から分岐する引抜き配９
１４ａ 、１４ｂ −１４ｎと、挿入配ＴＦ １５ａ
＊ １５ｂ −１５ｎ ＶＣは、夫々選択ユニット１６
ａ −１６ｂ −１６ｎを介して制御棒駆動機構２ａ
ｌ ２ｂ・・・２ｎが接続されている。A pull-out pipe 9 branching from these common pipes 12 and 13
14a, 14b -14n and insert TF 15a
*15b -15n VC is the selection unit 16 respectively.
Control rod drive mechanism 2a via a-16b-16n
l 2b...2n are connected.
各選択ユニット１６ａ ｌ １６ｂ・・・１６ｎは２個
の選択電磁弁１７ｕ 、 １７Ｖを備えており、これら
の電磁弁は制御棒選択制御回路１８からの制御棒選択信
号１９ｍ ＋ １９ｂ・・・１９ｎによって開閉制御さ
れる。Each selection unit 16a l 16b...16n is equipped with two selection solenoid valves 17u, 17V, and these solenoid valves are controlled by control rod selection signals 19m+19b...19n from the control rod selection control circuit 18. Opening/closing controlled.
また、前述の方向制御ユニット１１の方向制御電磁弁ｔ
ｏｕと１０ｘ、ＩＯＶと１０ｗは夫々、制御棒駆動制御
回路２０によって開閉制御されるもので、２１ は制御
棒挿入信号を、２２は制御棒引抜き信号を示す。Further, the direction control solenoid valve t of the direction control unit 11 described above is
ou and 10x, IOV and 10w are respectively controlled to open and close by a control rod drive control circuit 20, 21 indicates a control rod insertion signal, and 22 indicates a control rod withdrawal signal.
上述のように構成した本発明の一実施例の制御棒駆動制
御装置において、制御棒を挿入する場合にけ制御棒駆動
制御回路２ｏがらめ制御棒挿入信号２１ により、方向
制御電磁弁１０Ｗを開き、駆動水を共通配管１３に導く
とともに、同じ制御棒挿入信号２１ により方向制御電
磁弁１０ｖを開き、共通配管１２を流れてくる制御棒駆
動機構２ｍ 、 ２ｂ・・・２ｎ からの排水を、排
水配管６へ導く。In the control rod drive control device of one embodiment of the present invention configured as described above, when inserting a control rod, the direction control solenoid valve 10W is opened by the control rod insertion signal 21 in the control rod drive control circuit 2o. , while guiding the drive water to the common pipe 13, the direction control solenoid valve 10v is opened by the same control rod insertion signal 21, and the waste water from the control rod drive mechanisms 2m, 2b...2n flowing through the common pipe 12 is drained. Lead to piping 6.
この場合、制御棒選択信号１９ａ ｅ １９ｂ・・・１
９ｎにより、選択された制御棒の制御棒駆動機構２ａ
＋２ｂ・・・２ｎに接続している引抜き配９ ｉ４ａ
、 １４ｂ・・・１４ｎおよび挿入配管１５ａ 、 １
５ｂ・・・１５ｎに設置されている選択電磁弁１７ｕ
、 １７ｖを開き、選択された制御棒の制御棒駆動機構
２ａ ＋ ２ｂ・・・２ｎのみに共通配管１３から駆動
水が流れ込み、かつ共通配管１２から排水が流出するよ
うに割病１する。In this case, control rod selection signals 19a e 19b...1
9n, the control rod drive mechanism 2a of the selected control rod
+2b...2n connected to pullout line 9 i4a
, 14b...14n and insertion piping 15a, 1
Selection solenoid valve 17u installed in 5b...15n
, 17v is opened, and the opening is made so that driving water flows from the common piping 13 only into the control rod drive mechanisms 2a + 2b, . . . , 2n of the selected control rod, and drainage water flows out from the common piping 12.
これと反対に、制御棒を引抜く場合Ｉ／ｒ−は、制御棒
駆動制御回路２０からの制御棒引抜き信号２２により、
方向制御電磁弁ｔＯＵを開き、駆動水を共通配管１２に
導くとともに、同じ制御棒引抜き信号２２により方向制
御電磁弁１０ｘをｔ３Ｆ１き、共通配管１３ を流れて
くる制御棒駆動機構２ａ ＋ ２ｂ・・・２ｎからの排
水を排水配ｇ６へ導く。On the contrary, when the control rod is withdrawn, I/r- is determined by the control rod withdrawal signal 22 from the control rod drive control circuit 20.
The direction control solenoid valve tOU is opened to guide the drive water to the common pipe 12, and the same control rod withdrawal signal 22 turns the direction control solenoid valve 10x to t3F1, causing the control rod drive mechanism 2a + 2b to flow through the common pipe 13.・Direct wastewater from 2n to drainage distribution g6.
この場合も、制御棒挿入時と同様に制御棒フ゛べ択信号
１９ｍ 、 １９ｂ・・・１９ｎにより選択された制御
棒の制御棒駆動機構２ａ ＋ ２ｂ・・・２ｎに接続し
ている引抜き配ＩＩ １４ａ ｒ Ｊ４ｂ −１４ｎお
よび挿入配管１５ａ ｔ １５ｂ・・・１５ｎに設置さ
れている選択電磁弁１７ｕ 、 ｉ’ｙｖを開き、制御
棒の駆動制御を行なう。In this case, as in the case of control rod insertion, the extraction wiring II connected to the control rod drive mechanism 2a + 2b...2n of the control rod selected by the control rod fiber selection signals 19m, 19b...19n The selection electromagnetic valves 17u and i'yv installed in 14a r J4b - 14n and the insertion pipes 15a t 15b...15n are opened to control the drive of the control rods.
上述のように、本発明の制御棒駆動制御装置は、制御１
ｎの挿入、引抜きの方向制御を行なう方向制御電磁弁を
全ての制御棒に対して共用設備とし、各選択ユニットを
２個の電磁弁で構成できるようにしたため、電磁弁の数
を大幅に削減できる。As described above, the control rod drive control device of the present invention has control 1
The directional control solenoid valve that controls the direction of insertion and withdrawal of the rod is shared by all control rods, and each selection unit can be configured with two solenoid valves, greatly reducing the number of solenoid valves. can.
すなわち、１００ ＭＷ ｅ級原子力発電所では前述の
ように−１８５本の制御棒を備えているので、従来方式
の場合には７４０個の電磁弁を必要としたが本発明の場
合には１８５ｘ２個× ４個＝３７４ 個となり、約半
分で済むことになる。In other words, since a 100 MW e-class nuclear power plant is equipped with -185 control rods as mentioned above, 740 solenoid valves were required in the conventional system, but in the case of the present invention, 185 x 2 solenoid valves are required. × 4 pieces = 374 pieces, which means that the number of pieces is about half.
また、方向制御電磁弁の開閉を制御する制御棒駆動制御
回路が１個でよいためシステム全体ノ簡素化が可能とな
り、信頼性が向上する。Furthermore, since only one control rod drive control circuit is required to control the opening and closing of the directional control solenoid valve, the entire system can be simplified and reliability is improved.
また、複数個選択ユニットに対して制御棒選択信号を同
時に発生させることにより、複数本の制御棒を同時に駆
動させることが可能であり、また定期検査毎に検査する
電磁弁の個数も削減することになるため、作業員の被曝
低減を計ることができる。In addition, by simultaneously generating control rod selection signals to multiple selection units, it is possible to drive multiple control rods at the same time, and the number of solenoid valves to be inspected at each periodic inspection can also be reduced. Therefore, it is possible to reduce the radiation exposure of workers.
第１図は従来の制御棒駆動制御装置を例示する系統図、
第２図は本発明の一実施例を示す系統図である。
１ ・・・・・・・・・・・・・・・・・・・・・・・
・制御棒駆動水ポンプ２ａ ＋ ２ｂ〜２ｎ ・・・
・・・・・・・・制御棒駆動機構３ａ 、 ３ｂ〜３ｎ
・・・・・・・・・・・・水圧制御ユニット４ｕ
、４ｖ 、 ４ｗ 、 ４ｘ−・−・電磁弁５ ・・・
・・・・−・・・・・・・・・・・・・・・・導水配管
６−・・・・・・・・・・・・・・・・・・・・・・・
排水配管７ ・・・・・・・・・・・・・・・・・・・
・・・・・引抜き配管８ ・・・・・・・・・・・・・
・・・・・・・・・・・挿入配管１０ｕ ｖ ］Ｏｖ
、 １０ｗ 、 １０ｘ−−一方向制御電磁弁１１
・・・・・・・・・・・・・・・・・・・・・・・・方
向制御ユニット１２ 、１３ ・・−・・・・・・・
・・・・・・・・共通配管１４ａν１４ｂ〜１４ｎ
・・・・・・・・・引抜き配管ｔＳａν１５ｂ〜１５ｎ
・・・・・・・・・挿入配管１６ａ 、 １６ｂ〜１
ｆｉｎ ・・・・・・・・・選択ユニット１７０ 、
１７Ｖ ・・・・・・・・・−・・・・・選択電磁弁
１８ ・・・・・・・・・・・・・・・・・・・・・
・・・制御棒選択制御回路１９ａ ＊ １９ｂ−１９ｎ
・・・・・・・・・制御棒選択信号２０ ・・・
・・・・・・・−・・−・・・・・・・・・・制御棒駆
動制御回路２１ ・・・・・・・・・・・・・・・・
・・・−・・−・制御棒挿入信号２２ ・・・・・・
・・・・・・・・・・・・・−・・・・制御棒引抜き信
号式３．４１人弁理士 須山 佐−
第１図FIG. 1 is a system diagram illustrating a conventional control rod drive control device;
FIG. 2 is a system diagram showing one embodiment of the present invention. 1 ・・・・・・・・・・・・・・・・・・・・・・・・
・Control rod driven water pump 2a + 2b~2n...
...... Control rod drive mechanism 3a, 3b to 3n
・・・・・・・・・・・・Water pressure control unit 4u
, 4v, 4w, 4x--Solenoid valve 5...
・・・・・・・・・・・・・・・・・・・・・ Water supply piping 6-・・・・・・・・・・・・・・・・・・・・・
Drainage piping 7 ・・・・・・・・・・・・・・・・・・
・・・・・・Pull-out piping 8 ・・・・・・・・・・・・・・・
・・・・・・・・・・・・Insertion piping 10u v ]Ov
, 10w, 10x--one-way control solenoid valve 11
・・・・・・・・・・・・・・・・・・・・・ Direction control units 12, 13 ・・・・・・・・・・・・・・・
......Common piping 14aν14b~14n
...... Pulled piping tSaν15b~15n
......Insertion piping 16a, 16b~1
fin......selection unit 170,
17V ・・・・・・・・・・・・・・・・・・Selection solenoid valve 18 ・・・・・・・・・・・・・・・・・・・・・
...Control rod selection control circuit 19a * 19b-19n
......Control rod selection signal 20...
・・・・・・・・・−・・−・・・・・・・・・・Control rod drive control circuit 21 ・・・・・・・・・・・・・・・・
・・・－・・・－・Control rod insertion signal 22 ・・・・・・
・・・・・・・・・・・・・・・・・・Control rod pull-out signal type 3.41 patent attorney Sasu Suyama - Figure 1
Claims (1)
制御して、共通配管を流れる駆動水の方向を制御する方
向制御ユニットと、この方向制御ユニットを構成する４
個の方向制御電磁弁に向けて制御棒挿入信号と制御棒引
抜き信号を出力する制ｇ’ｌｌ ｇ駆動制御回路と、前
記共通配管から分岐する引抜き配管および挿入配管と各
制御棒駆動機構との間に介挿し・・た選択ユニットと、
これらの選択ユニットを構成する２個の選択電磁弁に向
けて制御棒選択信号を出力する制御棒選択制御回路とか
ら成ることを特徴とする制御棒駆動制御装置。1. A direction control unit that controls the drive water sent in by the control rod drive water pump and controls the direction of the drive water flowing through the common piping, and 4 that constitutes this direction control unit.
A control rod drive control circuit that outputs a control rod insertion signal and a control rod withdrawal signal to each directional control solenoid valve, a control rod drive control circuit that outputs a control rod insertion signal and a control rod withdrawal signal to each directional control solenoid valve, a withdrawal pipe and an insertion pipe that branch from the common pipe, and each control rod drive mechanism. A selection unit inserted between...
A control rod drive control device comprising a control rod selection control circuit that outputs a control rod selection signal to two selection solenoid valves constituting these selection units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57157711A JPS5946883A (en) | 1982-09-10 | 1982-09-10 | Control rod drive control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57157711A JPS5946883A (en) | 1982-09-10 | 1982-09-10 | Control rod drive control device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5946883A true JPS5946883A (en) | 1984-03-16 |
| JPH0353594B2 JPH0353594B2 (en) | 1991-08-15 |
Family
ID=15655697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57157711A Granted JPS5946883A (en) | 1982-09-10 | 1982-09-10 | Control rod drive control device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5946883A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151090A (en) * | 1983-02-17 | 1984-08-29 | 株式会社日立製作所 | Driving water control device for control rod drive mechanism |
| JPS6157885A (en) * | 1984-08-29 | 1986-03-24 | 株式会社東芝 | Control-rod driving hydraulic device |
| JPS62280429A (en) * | 1986-05-28 | 1987-12-05 | 大阪瓦斯株式会社 | Drain controller of bathtub |
-
1982
- 1982-09-10 JP JP57157711A patent/JPS5946883A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59151090A (en) * | 1983-02-17 | 1984-08-29 | 株式会社日立製作所 | Driving water control device for control rod drive mechanism |
| JPH0358075B2 (en) * | 1983-02-17 | 1991-09-04 | Hitachi Ltd | |
| JPS6157885A (en) * | 1984-08-29 | 1986-03-24 | 株式会社東芝 | Control-rod driving hydraulic device |
| JPH0523395B2 (en) * | 1984-08-29 | 1993-04-02 | Tokyo Shibaura Electric Co | |
| JPS62280429A (en) * | 1986-05-28 | 1987-12-05 | 大阪瓦斯株式会社 | Drain controller of bathtub |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0353594B2 (en) | 1991-08-15 |
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