JPS62174505A - Turbine control device for steam generator feed water pump - Google Patents
Turbine control device for steam generator feed water pumpInfo
- Publication number
- JPS62174505A JPS62174505A JP29493185A JP29493185A JPS62174505A JP S62174505 A JPS62174505 A JP S62174505A JP 29493185 A JP29493185 A JP 29493185A JP 29493185 A JP29493185 A JP 29493185A JP S62174505 A JPS62174505 A JP S62174505A
- Authority
- JP
- Japan
- Prior art keywords
- rotation speed
- setting device
- output
- water supply
- regular
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Control Of Turbines (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、原子力発電設備等における蒸気発生器給水
ポンプ用タービン制御装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a turbine control device for a steam generator feed water pump in nuclear power generation facilities and the like.
第2図は蒸気発生器給水ポンプ用タービンまわりの概略
構成を示す図である。同図において、1は蒸気発生器(
SG) 、2は高圧タービン、3は中圧及び低圧タービ
ン、4は湿分分離加熱器、5は発電機、6は給水ポンプ
駆動タービン(FWPT)、7は給水ポンプ(FWP)
、8は高圧タービンへの流入蒸気量を制御する主ター
ビン用蒸気加減弁、9は中圧及び低圧タービンへの蒸気
流入量を制御するインタセプト弁、10は高圧タービン
出口より抽気してFWPT6に流入する低圧蒸気の流量
を制御する低圧蒸気加減弁、11は蒸気発生器1からF
WPT6に流入する高圧蒸気の流量を制御する高圧蒸気
加減弁を示し、FWPT6は低圧蒸気加減弁10、高圧
蒸気加減弁11の開度を制御することにより流入する蒸
気量が変化して回転数が変化し、FWP7からSGIへ
供給される給水量の制御を行う。FIG. 2 is a diagram showing a schematic configuration around a turbine for a steam generator feedwater pump. In the figure, 1 is a steam generator (
SG), 2 is a high pressure turbine, 3 is a medium and low pressure turbine, 4 is a moisture separation heater, 5 is a generator, 6 is a feed water pump drive turbine (FWPT), 7 is a feed water pump (FWP)
, 8 is a steam control valve for the main turbine that controls the amount of steam flowing into the high-pressure turbine, 9 is an intercept valve that controls the amount of steam flowing into the intermediate-pressure and low-pressure turbines, and 10 is extracted air from the high-pressure turbine outlet and flows into the FWPT 6. 11 is a low-pressure steam control valve that controls the flow rate of low-pressure steam to
This shows a high-pressure steam control valve that controls the flow rate of high-pressure steam flowing into the WPT6.The FWPT6 changes the amount of steam flowing in by controlling the opening degrees of the low-pressure steam control valve 10 and the high-pressure steam control valve 11, thereby changing the rotation speed. The amount of water supplied from FWP7 to SGI is controlled.
第3図は従来のFWPT制御装置の一例を示すブロック
図である。同図において、12はランアップ回転数設定
器、13は給水量設定器、14はランアップ回転数設定
器12と給水量設定器13の出力を加算する加算器、1
5は起動用回転数設定器、16は加算器14と起動用回
転数設定器15の出力の小さい方を選択する低値選択器
、17はFWPT6の回転数を検出する回転数検出器、
18は低値選択器16の出力を回転数設定信号、回転数
検出器17の出力を回転数帰還信号として両者の偏差信
号に対し比例もしくは比例・積分演算を行う弁コントロ
ーラを示し、該弁コントローラ18の出力を弁開度指令
(信号)として、低圧蒸気加減弁10、高圧蒸気加減弁
11の弁開度が制御される。19は加算器14の出力と
起動用回転数設定器15の出力を比較し両者が一致した
ことによりランアップ回転数に到達したものと判定する
比較回路である。FIG. 3 is a block diagram showing an example of a conventional FWPT control device. In the figure, 12 is a run-up rotation speed setting device, 13 is a water supply amount setting device, 14 is an adder for adding the outputs of the run-up rotation speed setting device 12 and the water supply amount setting device 13;
5 is a starting rotation speed setter, 16 is a low value selector that selects the smaller output of the adder 14 and the starting rotation speed setting device 15, 17 is a rotation speed detector that detects the rotation speed of the FWPT 6,
Reference numeral 18 denotes a valve controller that uses the output of the low value selector 16 as a rotation speed setting signal and the output of the rotation speed detector 17 as a rotation speed feedback signal, and performs proportional or proportional/integral calculations on the difference signals between the two. The valve openings of the low-pressure steam control valve 10 and the high-pressure steam control valve 11 are controlled using the output of 18 as a valve opening command (signal). Reference numeral 19 denotes a comparison circuit that compares the output of the adder 14 and the output of the starting rotation speed setter 15, and determines that the run-up rotation speed has been reached when the two match.
以上の構成においては、通常給水が可能となるランアッ
プ回転数までは、起動用回転数設定器15の内容をプロ
グラム的に変化させ、ランアップ回転数設定器12に設
定された値まで到達すると給水可能となり、蒸気発生器
制御装置から給水量増減指令が給水量設定器13に与え
られると共に起動用回転数設定器15は上限値に設定さ
れるため低値選択器16の出力は加算器14からの出力
となり給水量に必要な回転数に制御される。ランアップ
回転数設定器12にはFWP7の特性と蒸気発生器1の
運転条件から決る固定値に設定される。In the above configuration, the contents of the startup rotation speed setter 15 are changed programmatically until the run-up rotation speed at which normal water supply is possible, and when the value set in the run-up rotation speed setting device 12 is reached. Water supply becomes possible, and a water supply amount increase/decrease command is given to the water supply amount setting device 13 from the steam generator control device, and the starting rotation speed setting device 15 is set to the upper limit value, so the output of the low value selector 16 is set to the adder 14. The output is controlled to the rotation speed required for the amount of water supplied. The run-up rotation speed setting device 12 is set to a fixed value determined from the characteristics of the FWP 7 and the operating conditions of the steam generator 1.
このように、従来のFWPT制御装置は制御系統が1系
統であるため、給水量設定器13、回転数検出器17な
ど該系統の構成要素が故障した場合に具えて、図示しな
いが手動バックアップ手段が設けられているが、該手動
バックアップ手段は、弁開度を一定にして運転を継続す
るものであるので、蒸気条件等が変化した場合には回転
数に変動が生じ、修理のためには運転を停止しなくては
ならないという問題があった。As described above, since the conventional FWPT control device has one control system, a manual backup means (not shown) is provided in case the components of the system, such as the water supply amount setting device 13 and the rotation speed detector 17, fail. However, the manual backup means continues operation with a constant valve opening, so if the steam conditions etc. change, the rotation speed will fluctuate, and it will not be necessary for repairs. There was a problem with having to stop driving.
この発明は上記した問題を解消するためになされたもの
で、制御系統を構成する要素に故障が生じても自動運転
を継続することが可能で、故障修理も運転停止すること
なく行うことができる蒸気発生器給水ポンプ用タービン
制御装置を得ることを目的とする。This invention was made to solve the above-mentioned problems, and it is possible to continue automatic operation even if a failure occurs in the elements that make up the control system, and failure repair can be performed without stopping the operation. The object is to obtain a turbine control device for a steam generator feedwater pump.
この発明は上記目的を達成するため、制御系統を常用と
予備の2系統としたものである。In order to achieve the above object, the present invention has two control systems, one for regular use and one for backup.
この発明では、常用側系統に故障が発生しても予備系統
に切換えることにより、自動運転を継続することができ
る。In this invention, even if a failure occurs in the regular system, automatic operation can be continued by switching to the standby system.
第1図は、この発明の一実施例を示したもので、第3図
に示したランアップ回転数設定器12、給水量設定器1
3、加算器14、起動用回転数設定器15、低値選択器
16、FWPT回転数検出器17、弁コントローラ18
のそれぞれと同一機能を持つランアップ回転数設定器2
2、給水量設定器23、加算器24、低値選択器26、
FWPT回転数検出器27、弁コントローラ28を有し
、これら22〜28により、12〜18が組立てている
系統(常用系統)に対する予備系統を構成している。但
し、起動用回転数設定器15は常用、予備系統に共用し
ている。弁コントローラ28は回転数検出器27の出力
を帰還信号として該出力と低値選択器26の出力との偏
差に対して比例・積分演算を行うが、常用側の弁コント
ローラ18が動作している場合には、この間、常用側の
弁コントローラ18の出力を帰還信号として導かれ常用
側弁コントローラ18の出力にトラッキングする。常用
側の弁コントローラ18が出力する開度指令信号と予備
側の弁コントーラが出力する開度指令信号は常用側−予
備側弁コントローラ切換器30によって切換えられる。FIG. 1 shows an embodiment of the present invention, in which a run-up rotation speed setting device 12 and a water supply amount setting device 1 shown in FIG.
3, adder 14, starting rotation speed setter 15, low value selector 16, FWPT rotation speed detector 17, valve controller 18
Run-up rotation speed setting device 2 with the same functions as each of
2, water supply amount setting device 23, adder 24, low value selector 26,
It has a FWPT rotational speed detector 27 and a valve controller 28, and these 22 to 28 constitute a backup system for the system (common system) assembled by 12 to 18. However, the starting rotation speed setting device 15 is shared by both the regular and standby systems. The valve controller 28 uses the output of the rotation speed detector 27 as a feedback signal and performs proportional/integral calculations on the deviation between the output and the output of the low value selector 26, but the valve controller 18 on the regular side is operating. In this case, during this period, the output of the valve controller 18 on the regular side is guided as a feedback signal and is tracked to the output of the valve controller 18 on the regular side. The opening degree command signal outputted by the regular side valve controller 18 and the opening degree command signal outputted by the standby side valve controller are switched by the regular side/standby side valve controller switch 30.
この弁コントローラ切換器30は常用側故障時には常用
系統除外操作により予備側に切換えられ、予備側故障時
には、予備系統除外操作を行った場合でもそのまま常用
側を選択する。また、給水量設定器23は給水量設定器
13にトラッキングさせである。31は加算器14と2
4を切換えるだめの切換器である。This valve controller switching device 30 is switched to the standby side by the operation of excluding the standby system when the regular side fails, and when the standby side fails, the regular side is selected as is even if the operation of excluding the standby system is performed. Further, the water supply amount setting device 23 is made to track the water supply amount setting device 13. 31 is adder 14 and 2
This is a switch for switching 4.
この構成においては、常用側の制御系統が故障した場合
には、例えば、一度手動バツクアップ手段に切換えたの
ち、常用系統を除外し、常用側−予備側弁コントローラ
切換器30により予備系統に切換え自動運転を継続する
。この場合、勿論、切換器31も予備側へ切換える。In this configuration, if the control system on the regular side breaks down, for example, after switching to the manual backup means, the regular system is excluded, and the regular side/standby side valve controller switch 30 switches to the backup system. Continue automatic operation. In this case, of course, the switch 31 is also switched to the standby side.
本実施例では、弁コントローラ28が弁コントローラ1
8の出力にトラッキングし、給水量設定器23か給水量
設定器13にトラッキングしているので、常用系統−予
備系統の上記切換をバンプレスに行うことができる。In this embodiment, the valve controller 28 is the valve controller 1
8 and the water supply amount setting device 23 or the water supply amount setting device 13, the switching between the regular system and the standby system can be performed bumplessly.
この発明は以上説明した通り、制御系統を多重化したの
で、故障系統が発生した場合にはこれを除外して正常系
統により自動運転を継続することができ、メインテナン
スも運転を停止することなくオンラインで行うことがで
きるので、その効果は極めて大である。As explained above, this invention has multiple control systems, so if a faulty system occurs, it can be excluded and automatic operation can continue using the normal system, and maintenance can be done online without stopping operation. The effect is extremely large because it can be done with
第1図はこの発明の実施例を示すブロック図、第2図は
FWPTまわりの概略構成図、第3図は従来のFWTP
制御装置のブロック図である。
図において、12.22・・・−アップ回転数設定器1
3.23−給水量設定器、14.24−加算器15〜起
動用回転数設定器、16.26−・・低値選択器、17
.27−F W P T回転数検出器、18.2L−弁
コントローラ、30・−・常用側−予備側弁コントロー
ラ切換器。
なお、図中、同一符号は同一または相当部分を示す。Fig. 1 is a block diagram showing an embodiment of the present invention, Fig. 2 is a schematic configuration diagram around the FWPT, and Fig. 3 is a conventional FWTP.
FIG. 2 is a block diagram of a control device. In the figure, 12.22...-up rotation speed setting device 1
3.23-Water supply amount setter, 14.24-Adder 15~Start-up rotation speed setter, 16.26--Low value selector, 17
.. 27-F W PT rotation speed detector, 18.2L-valve controller, 30... Regular side-standby side valve controller switch. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.
Claims (1)
器の出力を加算する加算器、該加算器と起動用回転数設
定器の出力の小さい方を選択する低値選択器、給水用タ
ービンの回転数を検出する回転数検出器、該回転数検出
器の出力と上記低値選択器の出力との偏差が零になるよ
うにタービン弁開度を制御する弁コントローラからなる
制御系を有する上記発生器給水ポンプ用タービン制御装
置において、上記制御系を常用系統と予備系統の2系統
を具えるとともに常用系統と予備系統の出力を切換える
常用−予備切換器を有し、常用系統の運転時、予備系統
の給水量設定器は常用系統の給水量設定器の出力にトラ
ツキングさせ、予備系統の弁コントローラが常用系統の
弁コントローラの出力にトラツキングさせることを特徴
とする蒸気発生器給水ポンプ用タービン制御装置。A water supply amount setting device, an adder that adds the outputs of the water supply amount setting device and the run-up rotation speed setting device, a low value selector that selects the smaller output of the adder and the startup rotation speed setting device, and a water supply turbine. The control system includes a rotation speed detector that detects the rotation speed of the engine, and a valve controller that controls the turbine valve opening so that the deviation between the output of the rotation speed detector and the output of the low value selector becomes zero. In the generator water pump turbine control device, the control system has two systems, a regular system and a standby system, and a regular-standby switch for switching the output of the regular system and the standby system, and when the regular system is in operation. , a turbine for a steam generator water feed pump, characterized in that the water supply amount setting device in the standby system tracks the output of the water supply amount setting device in the regular system, and the valve controller in the backup system tracks the output of the valve controller in the regular system. Control device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29493185A JPS62174505A (en) | 1985-12-24 | 1985-12-24 | Turbine control device for steam generator feed water pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP29493185A JPS62174505A (en) | 1985-12-24 | 1985-12-24 | Turbine control device for steam generator feed water pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62174505A true JPS62174505A (en) | 1987-07-31 |
Family
ID=17814120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP29493185A Pending JPS62174505A (en) | 1985-12-24 | 1985-12-24 | Turbine control device for steam generator feed water pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62174505A (en) |
-
1985
- 1985-12-24 JP JP29493185A patent/JPS62174505A/en active Pending
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