JPH0664181B2 - Condensate storage facility at a nuclear power plant - Google Patents
Condensate storage facility at a nuclear power plantInfo
- Publication number
- JPH0664181B2 JPH0664181B2 JP62048746A JP4874687A JPH0664181B2 JP H0664181 B2 JPH0664181 B2 JP H0664181B2 JP 62048746 A JP62048746 A JP 62048746A JP 4874687 A JP4874687 A JP 4874687A JP H0664181 B2 JPH0664181 B2 JP H0664181B2
- Authority
- JP
- Japan
- Prior art keywords
- water
- tank
- water level
- connection
- emergency
- 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 - Lifetime
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
Landscapes
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Hydroponics (AREA)
Description
【発明の詳細な説明】 〔発明の目的〕 （産業上の利用分野） 本発明は原子力発電所の復水貯蔵設備に関する。DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) The present invention relates to a condensate storage facility for a nuclear power plant.
（従来の技術） 原子力発電所における復水貯蔵槽は上部に常用水源，下
部に非常用水源を有しており、それぞれ上部に常用水送
水配管，下部に非常用水移送配管が接続されていた。つ
まり、両送水配管は独立分離したものである。(Prior Art) A condensate storage tank in a nuclear power plant has a regular water source in the upper part and an emergency water source in the lower part, and a regular water supply pipe is connected to the upper part and an emergency water transfer pipe is connected to the lower part, respectively. In other words, both water supply pipes are independently separated.
ところで、常用水源に貯蔵された復水は、原子力発電所
の通常運転及び定期点検（定検）に係わりなく、常に負
荷側の要求量に応じ供給されるものである。但し、その
貯蔵必要容量は、プラント定検時に行われる原子力炉機
器貯蔵プールへの水張り容量が支配的であり、同水張り
容量をもって、常用水源必要容量としている。つまり、
発電所の通常運転時のみ考慮すると必要容量以上の復水
が常用水源として貯蔵されているわけである。By the way, the condensate stored in the regular water source is always supplied according to the required amount on the load side, irrespective of the normal operation and regular inspection (regular inspection) of the nuclear power plant. However, the required storage capacity is dominated by the water filling capacity to the nuclear reactor equipment storage pool that is carried out at the time of regular plant inspection, and the same water filling capacity is used as the required capacity of the regular water source. That is,
Considering only during normal operation of the power plant, the condensate of more than the required capacity is stored as a source of regular water.
一方、非常用水源の必要容量は、工学的安全設備からの
要求により決定されているが、原子力発電所の運用上、
発電所の定検時には必ずしも復水貯蔵槽での非常用水源
の確保は要求されるものではない。On the other hand, the required capacity of the emergency water source is determined by the requirements from engineering safety equipment.
It is not always necessary to secure an emergency water source in the condensate storage tank at the time of regular inspection of the power plant.
つまり、発電所の定検時には、非常用水源を常用水源と
して使用することが可能となる。言い換えれば、非常用
水源と常用水源の共用化が行える。In other words, it is possible to use the emergency water source as a regular water source during a regular inspection of the power plant. In other words, the emergency water source and the regular water source can be shared.
しかしながら、前記の如く常用水移送配管と非常用水移
送配管は独立分離した配管である為、非常用水源を常用
水源として使用することができない構成となっていた。However, since the regular water transfer pipe and the emergency water transfer pipe are separate pipes as described above, the emergency water source cannot be used as the regular water source.
ところで特開昭61-41998号公報には復水貯蔵槽を非常用
復水貯蔵槽及び常用復水貯蔵槽の２基に分けさらに、各
槽間を配管で連結し、発電所の定検時には、この接続配
管を介して、非常用水源を常用水源として使用する技術
が開示されている。しかしながら、槽基数の増加による
コスト増加及び設置スペースの増加等の問題がある。By the way, in JP-A-61-41998, the condensate storage tank is divided into two units, an emergency condensate storage tank and a regular condensate storage tank, and each tank is connected by a pipe, and at the time of regular inspection of the power plant. , A technique of using an emergency water source as a regular water source through this connection pipe is disclosed. However, there are problems such as an increase in cost due to an increase in the number of tanks and an increase in installation space.
（発明が解決しようとする問題点） 以上、問題点に鑑み、槽基数を増加することなくプラン
ト定検時に行われる原子炉機器貯蔵プールの水張り時に
は非常用水源の貯蔵水が使用でき、常用水源の必要容量
を低下させることにより、復水貯蔵設備全体の容量を低
減させる。(Problems to be solved by the invention) In view of the above problems, the stored water of the emergency water source can be used at the time of filling the reactor equipment storage pool during the plant inspection without increasing the number of tanks. The capacity of the entire condensate storage facility will be reduced by reducing the required capacity of.
（問題点を解決するための手段） 上記の目的を達成するために、本発明においては非常用
水源を下部に常用水源を非常用水源の上の部位に貯留し
てなり上部に純水補給弁を介して純水補給配管を接続し
てなる槽と、この槽の常用水源を貯留してなる部位より
導出され補給水ポンプへ導いてなる常用水移送配管と、
上記槽の非常用水源を貯留してなる部位より導出され炉
心冷却設備へ導いてなる非常用水移送配管と、この非常
用水移送配管と常用水移送配管とを接続してなる接続配
管と、この接続配管に介挿されてなる複数の接続弁とを
具備してなり、前記接続弁が閉じている時には前記槽内
水位が前記常用水移送配管の槽接続部上方に設定された
第１の水位以下の場合に前記純水補給弁を開動作させ、
かつ前記第１の水位より低くかつ前記常用水移送配管の
槽接続部の上方に設定された第２の水位以下の場合に前
記補給水ポンプを停止させ、前記接続弁が開いている時
には前記槽内水位が前記常用水移送配管の槽接続部下方
に設定された第３の水位以下の場合に前記純水補給弁を
開動作させ、かつ前記第３の水位より低い位置に設定さ
れた第４の水位以下の場合に前記補給水ポンプを停止さ
せる槽水位制御装置を有して成ることを特徴とする原子
力発電所の復水貯蔵設備を提供する。(Means for Solving Problems) In order to achieve the above-mentioned object, in the present invention, an emergency water source is stored in a lower portion and a regular water source is stored in a portion above the emergency water source, and a pure water supply valve is provided in an upper portion. A tank formed by connecting a pure water supply pipe through the tank, and a common water transfer pipe that is led from a portion of the tank that stores a normal water source and is led to a makeup water pump,
An emergency water transfer pipe derived from the portion of the tank storing the emergency water source and guided to the core cooling facility, a connection pipe connecting the emergency water transfer pipe and the regular water transfer pipe, and this connection A plurality of connection valves inserted in the pipe, and when the connection valve is closed, the water level in the tank is equal to or lower than a first water level set above the tank connection part of the common water transfer pipe. In the case of, open the pure water supply valve,
And, when the water level is lower than the first water level and is equal to or lower than the second water level set above the tank connection part of the regular water transfer pipe, the makeup water pump is stopped, and the tank is opened when the connection valve is opened. When the inner water level is equal to or lower than the third water level set below the tank connection part of the common water transfer pipe, the pure water supply valve is opened, and the fourth level is set lower than the third water level. There is provided a condensate storage facility for a nuclear power plant, comprising a tank water level control device for stopping the makeup water pump when the water level is lower than the water level.
（作用） この様に構成された原子力発電所の復水貯蔵設備におい
ては、通常使用時である接続弁閉の時には槽内水位が第
１の水位まで低下した場合に純水補給弁が開き純水が槽
内に補給され、さらに第２の水位まで低下した場合には
補給水ポンプの自動停止が成される。非常用水源を有効
に使用するために接続弁開の時には槽内水位が第３の水
位まで低下した場合に純水補給弁が開き純水が槽内に補
給され、さらに第４の水位まで低下した場合に補給水ポ
ンプの自動停止が成される。よって、接続弁の開閉に応
じて槽内水位の制御を適正に実施することができ、かつ
水源となる槽の容量を少なく設定することができる。(Operation) In the condensate storage facility of the nuclear power plant configured as described above, the pure water supply valve opens when the water level in the tank drops to the first water level when the connection valve is closed during normal use. When water is replenished into the tank and the water level drops to the second level, the makeup water pump is automatically stopped. In order to use the emergency water source effectively, when the connection valve is opened and the water level in the tank drops to the third water level, the pure water supply valve opens and pure water is replenished in the tank and further drops to the fourth water level. If so, the makeup water pump is automatically stopped. Therefore, the water level in the tank can be properly controlled according to the opening / closing of the connection valve, and the capacity of the tank serving as the water source can be set small.
（実施例） 以下、第１図を参照して本発明の一実施例を説明する。
水源となる槽１には常用水移送配管２及び非常用水移送
配管３が各々接続され、補給水ポンプ及び炉心冷却設備
へ復水が供給される。この両移送配管の間に接続配管４
及び接続弁5,6を設置する。これにより槽１の下部に貯
蔵されている非常用水源が常用水源として使用可能とな
る。Embodiment An embodiment of the present invention will be described below with reference to FIG.
A regular water transfer pipe 2 and an emergency water transfer pipe 3 are connected to the tank 1 as a water source, and condensate is supplied to a makeup water pump and a core cooling facility. Connecting pipe 4 between these two transfer pipes
And connecting valves 5 and 6 will be installed. As a result, the emergency water source stored in the lower part of the tank 1 can be used as a regular water source.
なお第１図では常用水移送配管２と接続配管４の接続点
は槽１の常用水移送配管２用のノズル高さ（レベル）と
同じに図示されているが、実際の高さは槽１の底のレベ
ルより低い位置で接続されている。In FIG. 1, the connection point between the common water transfer pipe 2 and the connection pipe 4 is shown to be the same as the nozzle height (level) for the common water transfer pipe 2 of the tank 1, but the actual height is the tank 1. Connected at a position lower than the bottom level.
一方、槽１には常用水移送配管２及び非常用水移送配管
３などの流出配管だけでなく、液体廃液処理水などが戻
ってくる流入配管７も接続されている。これにより、槽
１の水位は槽１からの流出，流入のバランスにより常時
変動している。そこで、槽１の水位が極端に低下した場
合の対策として、水位がＬまで低下した場合には、純水
補給配管20に配設された純水補給弁８が開き純水補給を
開始し、これにより水位がＨまで回復すると純水補給弁
８が閉じ純水補給を停止する。又、更に水位が下がり、
水位が2Lに達した場合には槽水位低警報を、水位が3Lま
で低下した場合には補給水ポンプの自動停止を行う計測
制御を行っている。On the other hand, not only the outflow pipes such as the regular water transfer pipe 2 and the emergency water transfer pipe 3 but also the inflow pipe 7 through which the liquid waste liquid treated water returns is connected to the tank 1. As a result, the water level in the tank 1 constantly fluctuates due to the balance of outflow and inflow from the tank 1. Therefore, as a countermeasure against the extreme decrease in the water level in the tank 1, when the water level drops to L, the pure water supply valve 8 arranged in the pure water supply pipe 20 opens to start the pure water supply, As a result, when the water level is restored to H, the pure water supply valve 8 is closed and the pure water supply is stopped. In addition, the water level drops further,
When the water level reaches 2L, a low tank water level alarm is issued, and when the water level drops to 3L, measurement control is performed to automatically stop the makeup water pump.
そこで、原子力発電所の定検時に、接続弁を開にして非
常用水源を常用水源として使用する場合には、常用水源
に設定した前記H,L,2L,3Lまでの各設定を非常用水源に
設定する必要がある。これが第１図に示すHA,LA,2LA,3L
Aである。又、更に非常用水源を常用水源として使用す
る場合には、常用水源に設定していたＨから3Lまでの各
設定値での制御は停止する必要がある。そこで、レベル
発信器９から槽水位制御装置21のレベルスイッチ10を経
由して送られてきた信号を接続弁5,6の開閉条件により
自動選択する自動切換スイッチ11を設ける。これにより
接続弁5,6が閉じている場合には、自動切換スイッチ11
により、常用水源部での設定であるＨから3Lのレベルを
制御用信号として許可する。又、接続弁5,6が開いてい
る場合には、非常用水源部での設定であるHAから3LAの
レベルを制御用信号として許可する。つまり、槽１の水
源使用状態により２つの運転モードに分けられる。Therefore, at the time of regular inspection of a nuclear power plant, when the connection valve is opened and the emergency water source is used as a regular water source, the settings of H, L, 2L, and 3L set as the regular water source are set to the emergency water source. Must be set to. This is HA, LA, 2LA, 3L shown in Fig. 1.
A. Further, when the emergency water source is used as the regular water source, it is necessary to stop the control at each set value from H to 3L set in the regular water source. Therefore, an automatic changeover switch 11 is provided for automatically selecting a signal sent from the level transmitter 9 via the level switch 10 of the tank water level control device 21 according to the opening / closing conditions of the connection valves 5 and 6. As a result, when the connecting valves 5 and 6 are closed, the automatic changeover switch 11
By this, the level of H to 3L, which is the setting in the regular water source section, is permitted as a control signal. When the connection valves 5 and 6 are open, the level of 3LA from HA, which is the setting at the emergency water source, is permitted as a control signal. That is, it is divided into two operation modes depending on the water source usage state of the tank 1.
すなわち、接続弁が閉の場合常用水源に設定された水位
のレベルにより水位の制御を、接続弁が開の場合非常用
水源に設定された水位のレベルにより水位の制御がなさ
れる。That is, when the connection valve is closed, the water level is controlled by the level of the water level set in the regular water source, and when the connection valve is opened, the water level is controlled by the level of the water level set in the emergency water source.
尚、本設備の運転監視強化の為、接続弁5,6の各開閉表
示燈12,13及び運転モード表示燈４を中央制御室へ設け
る。In order to strengthen the operation monitoring of this equipment, the opening / closing indicator lights 12 and 13 of the connecting valves 5 and 6 and the operation mode indicator light 4 are provided in the main control room.
このような構成とすることにより、槽の小容量化につい
てのべると、電気出力110万KWeの原子力発電所の場合32
00m3から2700m3程度へ小容量化可能となる。With this structure, we can reduce the capacity of the tank. In the case of a nuclear power plant with an electric output of 1.1 million KWe, 32
The capacity can be reduced from 00m 3 to 2700m 3 .
以上のように、本発明による復水貯蔵設備によれば、水
源となる槽を小容量化することができる。さらには接続
弁が閉の場合に常用水源に設定された水位のレベルによ
り水位の制御が行なえ、かつ接続弁が開の場合に非常用
水源に設定された水位のレベルにより水位の制御が行な
え、常用水使用時に非常用水源の貯蔵水が使用でき、か
つ確実に水位の制御を行なうことができる。As described above, according to the condensate storage facility of the present invention, it is possible to reduce the capacity of the water source tank. Furthermore, when the connection valve is closed, the water level can be controlled by the level of the water level set for the regular water source, and when the connection valve is open, the water level can be controlled by the level of the water level set for the emergency water source. The stored water from the emergency water source can be used when using the regular water, and the water level can be reliably controlled.
第１図は本発明の概略系統図である。 １……槽、２……常用水移送配管 ３……非常用水移送配管、４……接続配管 5,6……接続弁、12,13……開閉表示燈 14……運転モード表示燈 20……純水補給配管 21……槽水位制御装置 H,HA……純水補給停止水位 L,LA……純水補給閉止水位 2L,2LA……水位低警報水位 3L,3LA……補給水ポンプ停止水位 FIG. 1 is a schematic system diagram of the present invention. 1 ... Tank, 2 ... Regular water transfer pipe 3 ... Emergency water transfer pipe, 4 ... Connection pipe 5,6 ... Connection valve, 12, 13 ... Open / close indicator light 14 ... Operation mode indicator light 20 ... … Pure water supply pipe 21 …… Tank water level control device H, HA …… Pure water supply stop water level L, LA …… Pure water supply closed Water level 2L, 2LA …… Low water level alarm water level 3L, 3LA …… Supply water pump stop Water level
Claims (1)
の上の部位に貯留してなり上部に純水補給弁を介して純
水補給配管を接続してなる槽と、この槽の常用水源を貯
留してなる部位より導出され補給水ポンプへ導いてなる
常用水移送配管と、上記槽の非常用水源を貯留してなる
部位より導出され炉心冷却設備へ導いてなる非常用水移
送配管と、この非常用水移送配管と常用水移送配管とを
接続してなる接続配管と、この接続配管に介挿されてな
る複数の接続弁とを具備してなり、前記接続弁が閉じて
いる時には前記槽内水位が前記常用水移送配管の槽接続
部上方に設定された第１の水位以下の場合に前記純水補
給弁を開動作させ、かつ前記第１の水位より低くかつ前
記常用水移送配管の槽接続部の上方に設定された第２の
水位以下の場合に前記補給水ポンプを停止させ、前記接
続弁が開いている時には前記槽内水位が前記常用水移送
配管の槽接続部下方に設定された第３の水位以下の場合
に前記純水補給弁を開動作させ、かつ前記第３の水位よ
り低い位置に設定された第４の水位以下の場合に前記補
給水ポンプを停止させる槽水位制御装置を有して成るこ
とを特徴とする原子力発電所の復水貯蔵設備。1. A tank in which an emergency water source is stored in a lower portion and a regular water source is stored in a portion in an upper portion of the emergency water source, and a pure water supply pipe is connected to an upper portion thereof via a pure water supply valve. Service water transfer pipe that is led from the part that stores the service water source to the makeup water pump, and emergency water transfer pipe that is guided from the part that stores the source of emergency water of the tank to the core cooling facility And a connection pipe connecting the emergency water transfer pipe and the regular water transfer pipe, and a plurality of connection valves inserted in the connection pipe. When the connection valve is closed, When the water level in the tank is equal to or lower than the first water level set above the tank connection portion of the normal water transfer pipe, the pure water supply valve is opened and the normal water transfer is lower than the first water level. When the water level is below the second water level set above the tank connection of the pipe Note that the makeup water pump is stopped, and when the connection valve is open, the pure water supply valve is opened when the water level in the tank is equal to or lower than the third water level set below the tank connection part of the common water transfer pipe. A recovery system for a nuclear power plant, comprising a tank water level control device that is operated and stops the makeup water pump when the water level is lower than a fourth water level set lower than the third water level. Water storage facility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048746A JPH0664181B2 (en) | 1987-03-05 | 1987-03-05 | Condensate storage facility at a nuclear power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62048746A JPH0664181B2 (en) | 1987-03-05 | 1987-03-05 | Condensate storage facility at a nuclear power plant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63215999A JPS63215999A (en) | 1988-09-08 |
| JPH0664181B2 true JPH0664181B2 (en) | 1994-08-22 |
Family
ID=12811847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62048746A Expired - Lifetime JPH0664181B2 (en) | 1987-03-05 | 1987-03-05 | Condensate storage facility at a nuclear power plant |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0664181B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3449583B2 (en) * | 1995-10-03 | 2003-09-22 | 株式会社東芝 | Condensate storage equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59195191A (en) * | 1983-04-20 | 1984-11-06 | 株式会社東芝 | Feedwater reactor for atomic power plant |
-
1987
- 1987-03-05 JP JP62048746A patent/JPH0664181B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63215999A (en) | 1988-09-08 |
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