JPS62252805A - Feedwater controller for nuclear reactor - Google Patents
Feedwater controller for nuclear reactorInfo
- Publication number
- JPS62252805A JPS62252805A JP61094673A JP9467386A JPS62252805A JP S62252805 A JPS62252805 A JP S62252805A JP 61094673 A JP61094673 A JP 61094673A JP 9467386 A JP9467386 A JP 9467386A JP S62252805 A JPS62252805 A JP S62252805A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- reactor
- water supply
- pressure steam
- pressure
- 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 claims description 71
- 238000000605 extraction Methods 0.000 claims 1
- 241000196324 Embryophyta Species 0.000 description 5
- 230000001276 controlling effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000010723 turbine oil Substances 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
Landscapes
- Train Traffic Observation, Control, And Security (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- 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】
〔発明の目的〕
（産業上の利用分野）
本発明は原子炉給水制御装置に係りタービン駆動給水ポ
ンプのみで原子炉の昇圧および水位を制御する機能を有
した原子炉給水制御装置に関する。[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a nuclear reactor feed water control system, and relates to a nuclear reactor having the function of controlling the pressure increase and water level of the reactor using only a turbine-driven water pump. Related to water supply control device.
（従来の技術）
第２図は従来のＢＷＲ原子力発電プラントの給水制御装
置の一例を示す図であり、従来原子炉昇圧方式において
は下流側の復水ポンプ９ａ、 ９ｂを起動し復水ポンプ
揚程で昇圧可能な圧力まで原子炉を昇圧する。その后、
電動駆動給水ポンプ１１を起動し、原子炉定格圧力まで
昇圧する。(Prior art) Fig. 2 is a diagram showing an example of a conventional water supply control system for a BWR nuclear power plant. In the conventional reactor pressure boosting system, the condensate pumps 9a and 9b on the downstream side are started to control the condensate pump head. Pressurize the reactor to a pressure that can be boosted using After that,
The electric drive water supply pump 11 is started and the pressure is increased to the reactor rated pressure.
一方、原子炉１の水位制御は原子炉水位信号１８により
給水制御装置２０を介して電動駆動給水ポンプ１１の出
口に設けられている給水調節弁１３で給水量を制御する
ことによって原子炉水位を一定に保つ方式が一般的に採
用されている。On the other hand, the water level of the reactor 1 is controlled by controlling the amount of water supplied by the water supply control valve 13 provided at the outlet of the electrically driven water supply pump 11 via the water supply control device 20 based on the reactor water level signal 18. A method of keeping it constant is generally adopted.
またタービン駆動給水ポンプ１０は駆動源である蒸気タ
ービン４の油気が発生する負荷あるいはタービン駆動給
水ポンプの給水制御可能範囲までは、上記電動駆動給水
ポンプ１１．給水調節弁で原子炉給水を制御し以降ター
ビン駆動給水ポンプ１ｏに切替えタービン駆動給水ポン
プ制御装置２１で回転数を制御することにより原子炉給
水量を制御することとなる。Further, the turbine-driven water supply pump 10 is operated until the load of the steam turbine 4, which is the drive source, generates oil or the water supply controllable range of the turbine-driven water supply pump 11. The reactor water supply is controlled by the water supply control valve, and then the turbine-driven water supply pump 1o is switched to the turbine-driven water supply pump control device 21 to control the rotation speed, thereby controlling the reactor water supply amount.
（発明が解決しようとする問題点）
しかしながら従来技術ではプラント起動時必ず電動駆動
給水ポンプを起動する必要が生じ起動変圧器容量に電動
機容量も加味する必要があり、かつプラント負荷上昇過
程時に電動駆動給水ポンプとタービン駆動給水ポンプの
切替操作も必要となる欠点があった。(Problem to be solved by the invention) However, in the conventional technology, it is necessary to start the electrically driven water supply pump whenever the plant is started up, and it is necessary to take the electric motor capacity into consideration in the starting transformer capacity. There was a drawback that switching operations between the water supply pump and the turbine-driven water supply pump were also required.
本発明の目的は上記した従来技術の欠点である煩雑な切
替操作をなくシ、かつ起動用変圧器の容量低減に寄与し
、かつ安定な原子炉給水制御装置を提供することにある
。An object of the present invention is to provide a stable nuclear reactor water supply control system that eliminates the complicated switching operations that are the drawbacks of the prior art described above, contributes to reducing the capacity of the startup transformer, and is stable.
（問題点を解決するための手段）
原子炉給水制御系において、原子炉から発生する蒸気を
高圧蒸気としタービン油気を低圧蒸気として使用する原
子炉給水ポンプ駆動タービンの駆動用低圧蒸気ラインに
上記高圧蒸気を供給し、その高圧蒸気から低圧蒸気へ至
る系統に減圧弁を設け、またタービン駆動給水ポンプの
出口に低流量給水調節弁を設け、原子炉起動時にタービ
ン駆動給水ポンプのみで昇圧および炉水位の制御を行な
うことを特徴とする。(Means for solving the problem) In the reactor feedwater control system, the above-mentioned low-pressure steam line for driving the reactor feedwater pump drive turbine, which uses steam generated from the reactor as high-pressure steam and turbine oil as low-pressure steam, is installed. A pressure reducing valve is installed in the system that supplies high-pressure steam and connects the high-pressure steam to low-pressure steam, and a low-flow feedwater control valve is installed at the outlet of the turbine-driven feedwater pump. It is characterized by controlling the water level.
（作用）
本発明は従来電動駆動給水ポンプを用いて原子炉の昇圧
および起動時の炉水位制御を行なっていたものをタービ
ン駆動給水ポンプにその機能を持たせることにより、前
述の電動駆動給水ポンプを削減でき、かつ所内負荷も軽
減できるものである。(Function) The present invention has conventionally used an electric drive feed water pump to boost the reactor pressure and control the reactor water level during startup, but by providing a turbine drive water feed pump with these functions, the electric drive water pump described above It is possible to reduce this and reduce the load within the station.
また原子炉給水への外乱となる給水制御中の電動駆動給
水ポンプとタービン駆動給水ポンプの切替操作もなくな
り安定したものとなる。In addition, there is no switching operation between the electrically driven water supply pump and the turbine-driven water supply pump during water supply control, which would cause disturbance to the reactor water supply, resulting in stable operation.
（実施例） 以下に本発明の詳細を一実施例により説明する。(Example) The details of the present invention will be explained below using an example.
第１図は本発明によるタービン駆動給水ポンプの制御装
置の実施例を示す図である。FIG. 1 is a diagram showing an embodiment of a control device for a turbine-driven water pump according to the present invention.
タービン＊動給水ポンプ１０の従来の制御は第２図に示
した給水制御装置の一例で説明した通り、低圧蒸気加減
弁１６と低圧蒸気加減弁のバックアップである高圧蒸気
加減弁１５の関度を制御することによりタービンの回転
数は給水要求指令相当となる。Conventional control of the turbine* dynamic feedwater pump 10 is based on the relationship between the low pressure steam control valve 16 and the high pressure steam control valve 15, which is a backup of the low pressure steam control valve, as explained in the example of the feedwater control device shown in FIG. By controlling the rotation speed of the turbine, it becomes equivalent to the water supply request command.
従って従来構成によると、低圧蒸気加減弁１６側の蒸気
源が確保されるためには蒸気タービン４および発電機５
が併入され、ある負荷まで上昇して始めて高圧タービン
排気圧力が十分なものとなりタービン駆動給水ポンプ１
０を運転するための軸動力が得られる。Therefore, according to the conventional configuration, in order to secure the steam source on the low-pressure steam control valve 16 side, the steam turbine 4 and the generator 5 must
is added and the high-pressure turbine exhaust pressure becomes sufficient only when the load increases to a certain level and the turbine-driven water supply pump 1
The shaft power for operating 0 can be obtained.
このため高圧タービン４が運転される以前の。Therefore, before the high pressure turbine 4 is operated.
原子炉圧力上昇時は、電動駆動給水ポンプ１１の運転が
必要不可欠であった。When the reactor pressure rose, it was essential to operate the electrically driven water supply pump 11.
本発明では、タービン駆動給水ポンプｌＯのタービン駆
動蒸気を制御する低圧蒸気加減弁１６と電動弁１４の間
に低圧蒸気加減弁のバックアップである高圧蒸気加減弁
１５の主蒸気を供給し、その主蒸気を低圧蒸気圧力に見
合った圧力に加減弁２３を圧力制御器２２で制御する。In the present invention, the main steam of the high-pressure steam control valve 15, which is a backup of the low-pressure steam control valve, is supplied between the low-pressure steam control valve 16 and the electric valve 14, which control the turbine-driven steam of the turbine-driven feedwater pump 1O. A regulating valve 23 is controlled by a pressure controller 22 to control the steam to a pressure commensurate with the low pressure steam pressure.
このことによりタービン駆動給水ポンプＩＯのｖｉＡ動
蒸低蒸気保され、かつ一定圧力となるため低圧加減弁１
６の開度制限により給水ポンプの軸動力は一定となる。As a result, the viA dynamic steam of the turbine-driven water supply pump IO is kept low, and the pressure becomes constant, so the low pressure regulating valve 1
The shaft power of the water pump remains constant due to the opening degree limit in 6.
従ってタービン駆動給水ポンプｌＯ出口圧力も電動Ｗ動
輪水ポンプ１１と同様一定に保たれる。Therefore, the outlet pressure of the turbine-driven water supply pump lO is also kept constant like the electric double-wheel water pump 11.
また、原子炉への給水制御は、タービン駆動給水ポンプ
ｌＯの主ラインのバイパスラインに給水調節弁１３を設
置し、給水制御装置！２０の信号により可能となる。In addition, to control the water supply to the reactor, a water supply control valve 13 is installed in the bypass line of the main line of the turbine-driven water supply pump lO, and a water supply control device! This is possible with 20 signals.
タービン駆動給水ポンプｌＯの出口に設置した給水調節
弁１３は、前述の低圧加減弁１６に高圧蒸気を・供給さ
せ原子炉へ給水可能圧力となるタービン回転数に低圧加
減弁１６は開度保持されているため給水制御は給水調節
弁１３により行なうことを目的としたものである。The water supply control valve 13 installed at the outlet of the turbine-driven water supply pump IO supplies high-pressure steam to the low-pressure control valve 16 described above, and maintains the opening of the low-pressure control valve 16 at a turbine rotational speed at which the pressure is sufficient to supply water to the reactor. Therefore, water supply control is intended to be performed by the water supply control valve 13.
このことにより安定した給水制御が可能となる。This enables stable water supply control.
以上述べたように本発明によれば、プラント起動時の電
源設備容量の削減によるプラントコストの低減、起動用
及予備機用としての電動給水ポンプ削減によるプラント
コストの低減、プラント起動時電動給水ポンプからター
ビン駆動給水ポンプへの切替操作が不要になるための運
転操作のｆｆｉ素化などができる原子炉給水制御装置を
提供することができる。As described above, according to the present invention, plant costs are reduced by reducing power supply equipment capacity at plant startup, plant costs are reduced by reducing electric water supply pumps for startup and backup equipment, and electric water supply pumps are used at plant startup. It is possible to provide a nuclear reactor feed water control device that can perform operations such as FFI, which eliminates the need for switching from a turbine-driven feed water pump to a turbine-driven feed water pump.
第１図は本発明による原子炉給水制御装置の一実施例を
示す構成図、第２図は従来技術の代表的構成例を示す構
成図である。
１・・・原子炉、２・・・主蒸気比メ弁、３・・・蒸気
加減弁、４・・・蒸気タービン、５・・・発電機、６・
・・バイパス弁、７・・・復水器、８・・・循環水、
９ａ、 ９ｂ・・・復水ポンプ、 １０・・・タービン
駆動給水ポンプ、 １１・・・電動駆動給水ポンプ、
１２・・・逆止弁、１３・・・給水調節弁、１４・・・
電動弁、 １５・・・高圧蒸気加減弁、１６・・・低圧
蒸気加減弁、１７・・・主蒸気流量信号、 １８・・・
原子炉水位信号。
１９・・・給水流量信号、 ２０・・・原子炉給水制御
装置、２１・・・タービン駆動給水ポンプ制御装置、２
２・・・圧力調節器、２３・・・減圧弁。
代理人 弁理士 則 近 憲 佑
同 三俣弘文FIG. 1 is a block diagram showing an embodiment of a nuclear reactor feed water control system according to the present invention, and FIG. 2 is a block diagram showing a typical configuration example of the prior art. DESCRIPTION OF SYMBOLS 1... Nuclear reactor, 2... Main steam ratio valve, 3... Steam control valve, 4... Steam turbine, 5... Generator, 6...
... Bypass valve, 7... Condenser, 8... Circulating water,
9a, 9b... Condensate pump, 10... Turbine driven water supply pump, 11... Electrically driven water supply pump,
12...Check valve, 13...Water supply control valve, 14...
Electric valve, 15... High pressure steam regulating valve, 16... Low pressure steam regulating valve, 17... Main steam flow rate signal, 18...
Reactor water level signal. 19... Water supply flow rate signal, 20... Reactor feed water control device, 21... Turbine drive water feed pump control device, 2
2...Pressure regulator, 23...Pressure reducing valve. Agent Patent Attorney Nori Chika Yudo Hirofumi Mitsumata
Claims (1)
子炉から発生する蒸気を高圧蒸気としタービン抽気を低
圧蒸気として使用する原子炉給水ポンプ駆動タービンの
駆動用低圧蒸気ラインに前記高圧蒸気を供給し、その高
圧蒸気から低圧蒸気へ至る系統に減圧弁を設け、またタ
ービン駆動給水ポンプの出口に低流量給水調節弁を設け
、原子炉起動時にタービン駆動給水ポンプのみで昇圧お
よび炉水位の制御を行なうことを特徴とする原子炉給水
制御装置。In the reactor feed water control system of a nuclear power plant, the steam generated from the reactor is converted into high pressure steam and the high pressure steam is supplied to the low pressure steam line for driving the reactor feed water pump driving turbine, which uses turbine extraction air as low pressure steam. A pressure reducing valve is installed in the system leading from high-pressure steam to low-pressure steam, and a low-flow feed water control valve is installed at the outlet of the turbine-driven feed water pump, allowing pressure rise and reactor water level control using only the turbine-driven water pump at reactor startup. A nuclear reactor water supply control device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61094673A JPS62252805A (en) | 1986-04-25 | 1986-04-25 | Feedwater controller for nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61094673A JPS62252805A (en) | 1986-04-25 | 1986-04-25 | Feedwater controller for nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62252805A true JPS62252805A (en) | 1987-11-04 |
Family
ID=14116750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61094673A Pending JPS62252805A (en) | 1986-04-25 | 1986-04-25 | Feedwater controller for nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62252805A (en) |
-
1986
- 1986-04-25 JP JP61094673A patent/JPS62252805A/en active Pending
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