JPH06214081A - Vent device for nuclear reactor containment vessel - Google Patents
Vent device for nuclear reactor containment vesselInfo
- Publication number
- JPH06214081A JPH06214081A JP5005852A JP585293A JPH06214081A JP H06214081 A JPH06214081 A JP H06214081A JP 5005852 A JP5005852 A JP 5005852A JP 585293 A JP585293 A JP 585293A JP H06214081 A JPH06214081 A JP H06214081A
- Authority
- JP
- Japan
- Prior art keywords
- water
- water supply
- scrubbing
- containment vessel
- supply tank
- 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
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は原子炉発電所に使用され
る重力落下方式でスクラビング用水を給水する原子炉格
納容器ベント装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reactor containment vessel venting device for supplying scrubbing water by a gravity drop method used in a nuclear power plant.
【０００２】[0002]
【従来の技術】原子力発電所に用いられる原子炉格納容
器は、事故発生時に原子炉と外部の環境を隔離し、放射
能を有する核***生成物（以下、ＦＰという）が原子炉
圧力容器外に放出された場合にも、ＦＰの外部環境への
放出の障壁となり放射能が外部の環境に放出することを
防止する目的で設置されている。2. Description of the Related Art A reactor containment vessel used in a nuclear power plant isolates the reactor from the external environment when an accident occurs, and radioactive fission products (hereinafter referred to as FP) are placed outside the reactor pressure vessel. Even when it is released, it serves as a barrier to the release of FP to the external environment and is installed for the purpose of preventing radioactivity from being released to the external environment.
【０００３】図２に示したように原子炉建屋16に立設さ
れた沸騰水型原子炉（以下、ＢＷＲという）の原子炉格
納容器17は一般にドライウェル18とウエットウェル19の
２つのコンパートメントに分割されている。ドライウェ
ル18内には原子炉圧力容器20が収納され、ウエットウェ
ル19内には圧力抑制水21が貯蔵される。As shown in FIG. 2, a reactor containment vessel 17 of a boiling water reactor (hereinafter referred to as BWR) installed upright in a reactor building 16 generally has two compartments, a dry well 18 and a wet well 19. It is divided. A reactor pressure vessel 20 is housed in the dry well 18, and a pressure suppression water 21 is stored in the wet well 19.
【０００４】原子炉圧力容器20に接続される配管（図示
せず）が破断し高温高圧の一次冷却水がドライウェル18
に放出される事故（以下、ＬＯＣＡという）時には、ド
ライウェル18内の水蒸気を主成分とする雰囲気ガスがベ
ント管22を介して圧力抑制水21中に導かれ冷却凝縮さ
れ、原子炉格納容器17内の圧力上昇を抑制する構造とな
っている。A pipe (not shown) connected to the reactor pressure vessel 20 is broken, and the high-temperature and high-pressure primary cooling water is transferred to the dry well 18
At the time of an accident (hereinafter referred to as LOCA) that is discharged to the reactor, the atmospheric gas containing steam as a main component in the dry well 18 is introduced into the pressure suppression water 21 through the vent pipe 22 to be cooled and condensed, and the reactor containment vessel 17 It has a structure that suppresses the rise in internal pressure.
【０００５】また、ＬＯＣＡ時には喪失した一次冷却水
を補給するため非常用炉心冷却系（図示せず）が作動し
炉心冷却を確保すると同時に、圧力抑制水21からの除熱
を行うため崩壊熱除去系（図示せず）が作動され圧力抑
制水21の温度上昇が抑制される。At the time of LOCA, an emergency core cooling system (not shown) is activated to replenish the lost primary cooling water to secure core cooling, and at the same time, heat is removed from the pressure suppression water 21 to remove decay heat. A system (not shown) is activated to suppress the temperature rise of the pressure suppression water 21.
【０００６】このような原子炉格納容器を有する原子力
発電所において、現実的にはあり得ないことであるが、
異常な事象が発生し原子炉圧力容器20内への冷却水補給
手段が常用および非常用ともに喪失し炉心冷却機能が完
全に喪失してしまう事故や、あるいは、原子炉格納容器
17からの除熱機能が完全に喪失してしまう事故（以下、
苛酷事故という）を想定し、それでも原子力発電所の安
全性が喪失しないように対策を実施することがあり得
る。In a nuclear power plant having such a reactor containment vessel, it is impossible in reality.
An accident where an abnormal event occurs and the cooling water supply means to the reactor pressure vessel 20 is lost for both regular and emergency use, and the core cooling function is completely lost, or the reactor containment vessel
Accident that the heat removal function from 17 is completely lost (hereinafter,
Severe accidents) and still take measures to prevent the safety of the nuclear power plant from being lost.
【０００７】苛酷事故の発生確率は極めて小さいことが
確率論的安全評価の結果わかっているが、ＦＰを多量に
環境に放出するという結果の重要性に鑑み近年諸外国で
苛酷事故時の原子炉格納容器破損を防止する装置が検討
されている。Probabilistic safety assessments have revealed that the probability of occurrence of severe accidents is extremely low. However, in view of the importance of the result of releasing a large amount of FP into the environment, nuclear reactors at times of severe accidents in various foreign countries in recent years. A device for preventing damage to the containment vessel is under consideration.
【０００８】苛酷事故時の原子炉格納容器破損の防止対
策として、原子炉格納容器17が加圧破損する破損圧力ま
で到達する前にＦＰ除去を施した原子炉格納容器17内の
雰囲気ガスを環境に放出し原子炉格納容器17の上昇を抑
える格納容器ベントが挙げられる。As a measure for preventing damage to the reactor containment vessel in the event of a severe accident, the atmosphere gas inside the reactor containment vessel 17, which has been subjected to FP removal before reaching the damage pressure at which the reactor containment vessel 17 is damaged by pressure, is used as an environment. An example is a containment vessel vent that is released to the reactor and suppresses the rise of the reactor containment vessel 17.
【０００９】格納容器ベントを行う格納容器ベント装置
のうち、ＦＰを含む気体が液相を通過する際、気泡状と
なって液相中を上昇する過程でＦＰが除去されるいわゆ
るスクラビング効果によりＦＰを除去する方法を採用す
るものが例えば特開平3-077096号公報に開示されてい
る。Among the containment vessel venting apparatus for performing containment vessel venting, when the gas containing FP passes through the liquid phase, it becomes bubbles and is removed in the process of rising in the liquid phase. For example, Japanese Patent Application Laid-Open No. 3-077096 discloses a method that employs a method of removing the above.
【００１０】すなわち、図２に示したようにドライウェ
ル18とウエットウェル19からそれぞれ吸入配管23とスク
ラビング配管25を連絡弁24とスクラビング弁26とを介し
て気密容器１内のスクラビング用水２に先端部が没する
連絡配管３に接続している。そして、連絡配管３に放出
配管４を接続し、この放出配管の上流側を大気放出口と
気密容器１内の気相部に接続している。That is, as shown in FIG. 2, from the dry well 18 and the wet well 19, the suction pipe 23 and the scrubbing pipe 25 are respectively connected to the scrubbing water 2 in the airtight container 1 through the connecting valve 24 and the scrubbing valve 26. It is connected to the communication pipe 3 where the part is submerged. Then, the discharge pipe 4 is connected to the communication pipe 3, and the upstream side of the discharge pipe is connected to the atmosphere discharge port and the gas phase portion in the airtight container 1.
【００１１】[0011]
【発明が解決しようとする課題】しかしながら、原子炉
格納容器から格納容器ベント装置に導入される原子炉格
納容器内雰囲気ガスは高温であり、またガス中に含まれ
るＦＰの崩壊熱も発生する。スクラビング用の液体とし
ては水を主成分とするスクラビング用水２が使用される
が、原子炉格納容器内雰囲気ガスのスクラビング用水２
への熱供与によりスクラビング用水２の蒸発が起こり、
その減少は避けられない。However, the atmospheric gas in the reactor containment vessel introduced from the reactor containment vessel to the containment vessel venting apparatus is at a high temperature, and the decay heat of FP contained in the gas is also generated. As the scrubbing liquid, scrubbing water 2 containing water as a main component is used, but scrubbing water 2 of the atmospheric gas in the reactor containment vessel is used.
By the heat donation to the scrubbing water 2,
The decrease is inevitable.
【００１２】以上のようにスクラビング効果を利用した
ＦＰ除去方法を採用した格納容器ベント装置の場合、苛
酷事故時の使用に際して、スクラビング用水２の減少は
不可避である。In the case of the containment vessel venting apparatus which employs the FP removal method utilizing the scrubbing effect as described above, it is inevitable that the scrubbing water 2 is reduced when used in a severe accident.
【００１３】ここで、使用中に外部からのスクラビング
用水を供給しないタイプの装置を仮定すると、スクラビ
ング用水の減少を考慮した上で装置の機能を保持しなけ
ればならず、そのため、装置の規模が膨大なものとな
り、コスト面および既設プラントの実情から判断すれば
非現実的である。Assuming an apparatus of the type that does not supply scrubbing water from the outside during use, the function of the apparatus must be maintained in consideration of the decrease in scrubbing water, and therefore the scale of the apparatus is reduced. It will be enormous, and it is unrealistic from the viewpoint of cost and the actual situation of the existing plant.
【００１４】したがって、使用中に外部からのスクラビ
ング用水２を供給するタイプの装置が現実的であるが、
苛酷事故時の使用を想定している装置であり、機能の重
要性を考えた場合、信頼性が高くなければならない。Therefore, although a device of the type that supplies the scrubbing water 2 from the outside during use is practical,
This device is intended for use in severe accidents, and must have high reliability when considering the importance of its function.
【００１５】動的機器はその故障率、および苛酷事故時
の全交流電源喪失等の事象の発生頻度を考慮すると、信
頼性が低い。よって、ポンプ等の動的機器を使用して格
納容器ベント装置へスクラビング用水を供給する方式で
は機能喪失の課題がある。Dynamic equipment is unreliable in view of its failure rate and the frequency of occurrence of events such as loss of all AC power during a severe accident. Therefore, the method of supplying scrubbing water to the containment vessel vent device using a dynamic device such as a pump has a problem of loss of function.
【００１６】本発明は上記課題を解決するためになされ
たもので、信頼性が高くかつその駆動に交流電源を必要
としない原子炉格納容器ベント装置を提供することにあ
る。The present invention has been made to solve the above problems, and it is an object of the present invention to provide a reactor containment vessel venting apparatus which is highly reliable and does not require an AC power source for its driving.
【００１７】[0017]
【課題を解決するための手段】本発明は下部にスクラビ
ング用水を貯蔵した液相部を有する気密容器と、その液
相部液面よりも高い位置に設置され貯蔵した水の自重で
気密容器内に給水を行う給水タンクと、この給水タンク
よりも高い位置に設置され貯蔵水の水頭圧で給水タンク
に給水を行うスクラビング用水貯蔵タンクと、スクラビ
ング用水貯蔵タンク底部と給水タンク頂部を接続しスク
ラビング用水貯蔵タンクの水を給水タンクに導く連絡配
管と、この連絡配管に設置され常時は閉状態で給水タン
クへの給水時に開作動を行う連絡弁と、給水タンク頂部
に設置され給水タンクへの給水時に給水タンク内の雰囲
気を外部に解放するための逃がし配管と、この逃がし配
管に設置され常時は閉状態で給水タンクへの給水時に開
作動を行う開閉弁と、気密容器気相部と給水タンク頂部
を接続し気密容器内の雰囲気を給水タンク内上部に導く
連絡配管と、この連絡配管に設置され常時は閉状態で気
密容器内への給水時に開作動を行う連絡弁と、気密容器
液相部と給水タンク底部を接続し給水タンク内のスクラ
ビング用水を気密容器内に導く給水配管と、この給水配
管に設置され常時は閉状態で気密容器内への給水時に開
作動を行う給水弁とからなることを特徴とする。According to the present invention, there is provided an airtight container having a liquid phase portion for storing scrubbing water at a lower portion thereof, and a self-weight of the stored water which is installed at a position higher than the liquid surface of the liquid phase portion. Water tank for supplying water to the water supply tank, a water storage tank for scrubbing that is installed at a higher position than this water tank and supplies water to the water supply tank with the head pressure of the stored water, and a bottom of the water storage tank for scrubbing and a water supply tank for the scrubbing water are connected. A connecting pipe that guides the water from the storage tank to the water supply tank, a connecting valve that is installed on this connecting pipe and that is normally closed and that opens when water is supplied to the water supply tank, and a water supply tank that is installed at the top of the water supply tank when supplying water to the water supply tank. A relief pipe for releasing the atmosphere in the water tank to the outside, and an on-off valve installed in this relief pipe that opens normally when water is supplied to the water tank in a normally closed state. , A connecting pipe that connects the gas phase part of the airtight container to the top of the water tank and connects the atmosphere inside the airtight container to the upper part of the water tank, and it is installed in this connecting pipe and is normally closed and opens when supplying water to the airtight container. A water supply pipe that connects the liquid phase part of the airtight container and the bottom of the water supply tank to guide the scrubbing water in the water supply tank into the airtight container, and the water supply pipe installed in this water supply pipe and normally closed to supply water to the airtight container. It is characterized by comprising a water supply valve which is sometimes opened.
【００１８】[0018]
【作用】苛酷事故時に発生したＦＰを含む原子炉格納容
器内雰囲気ガスは第１の連絡配管を通して気密容器内の
スクラビング用水中に導入され、スクラビング用水を通
過する。Operation The atmospheric gas in the reactor containment vessel containing FP generated at the time of a severe accident is introduced into the scrubbing water in the airtight vessel through the first connecting pipe and passes through the scrubbing water.
【００１９】この気体が気泡状となって水中を上昇する
過程でスクラビング効果によりＦＰが除去されるが、気
体の高温度とＦＰの崩壊熱によるスクラビング用水への
熱供与によりスクラビング用水の一部は蒸発し、気密容
器内のスクラビング用水は減少する。このスクラビング
用水の減少により、スクラビング効果に有為な低下が確
認された時点でスクラビング用水の給水を行うこととな
る。The FP is removed by the scrubbing effect in the process in which the gas becomes bubbles and rises in the water. However, due to the high temperature of the gas and the heat of decay of the FP, heat is supplied to the scrubbing water so that part of the scrubbing water is removed. Evaporate and reduce scrubbing water in the airtight container. Due to this decrease in scrubbing water, scrubbing water will be supplied when a significant decrease in the scrubbing effect is confirmed.
【００２０】本発明においては、原子炉格納容器ベント
装置の本体である気密容器内のスクラビング用水の液面
より高い位置に、気密容器内へスクラビング用水を給水
するための給水タンクが設置され、また、給水タンクよ
り高い位置に、給水タンクにスクラビング用水を給水す
るためのスクラビング用水貯蔵タンクが設置されてい
る。In the present invention, a water supply tank for supplying scrubbing water into the airtight container is installed at a position higher than the liquid level of the scrubbing water in the airtight container which is the main body of the reactor containment vessel venting device, and , A scrubbing water storage tank for supplying scrubbing water to the water supply tank is installed at a position higher than the water supply tank.
【００２１】気密容器の気相部と給水タンク頂部を接続
している第２の連絡配管に接続されてる連絡弁、および
気密容器内のスクラビング用水と給水タンク底部を接続
している給水配管に接続されている給水弁の開動作によ
り、給水タンク内の貯蔵水を、その液面にかかる圧力と
貯蔵水の自重により気密容器内に導入する。A connecting valve connected to a second connecting pipe connecting the gas phase portion of the airtight container to the top of the water tank, and a water connecting pipe connecting the scrubbing water in the airtight container to the bottom of the water tank. The stored water in the water supply tank is introduced into the airtight container by the pressure applied to the liquid level and the weight of the stored water by the opening operation of the water supply valve.
【００２２】気密容器内への給水を終了した後、第２の
連絡配管の連絡弁および給水配管の給水弁の閉動作によ
り、気密容器と給水タンクを隔離する。この結果、気密
容器内にスクラビング用水が給水される。After the water supply into the airtight container is completed, the airtight container and the water supply tank are separated by closing the connection valve of the second communication pipe and the water supply valve of the water supply pipe. As a result, scrubbing water is supplied into the airtight container.
【００２３】次に、給水タンク頂部に接続している逃が
し配管に設置されている開閉弁の開動作により、気密容
器の気相部と等圧である給水タンク内部の雰囲気を外部
に解放し、給水タンクとスクラビング用水貯蔵タンクを
接続している第３の連絡配管に接続されている連絡弁の
開動作により、スクラビング用水貯蔵タンクの貯蔵水
を、その水頭圧により第３の連絡配管を介して給水タン
クに導入する。Next, the opening operation of the opening / closing valve installed in the relief pipe connected to the top of the water supply tank releases the atmosphere inside the water supply tank, which has the same pressure as the gas phase portion of the airtight container, to the outside. By the opening operation of the communication valve connected to the third communication pipe connecting the water supply tank and the scrubbing water storage tank, the stored water in the scrubbing water storage tank is caused to flow through the third communication pipe by its head pressure. Install in water tank.
【００２４】給水タンクへの給水を終了した後、第２の
連絡配管の連絡弁と逃がし配管の開閉弁の閉動作によ
り、給水タンクとスクラビング用水貯蔵タンク、および
外部雰囲気を隔離する。この結果、給水タンクにスクラ
ビング用水が給水される。After the water supply to the water supply tank is completed, the water supply tank and the scrubbing water storage tank and the external atmosphere are isolated by closing the connection valve of the second communication pipe and the opening / closing valve of the relief pipe. As a result, scrubbing water is supplied to the water supply tank.
【００２５】再び気密容器内への給水を行う場合には上
記の操作を繰り返す。このようにして、格納容器ベント
装置の機能保持のためのスクラビング用水の給水を、駆
動源として交流電源等を使用せず、かつ信頼性の高い方
法で行うことができる。When water is again supplied to the airtight container, the above operation is repeated. In this way, scrubbing water for maintaining the function of the containment vessel venting device can be supplied by a highly reliable method without using an AC power source or the like as a drive source.
【００２６】[0026]
【実施例】図１を参照しながら本発明に係る原子炉格納
容器ベント装置の一実施例を説明する。なお、図１中、
図２と同一部分には同一符号を付して重複する部分の説
明は省略する。したがって、図１における左側の原子炉
格納容器17内の説明は割愛する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a reactor containment vessel vent device according to the present invention will be described with reference to FIG. In addition, in FIG.
The same parts as those in FIG. 2 are designated by the same reference numerals, and the description of the overlapping parts will be omitted. Therefore, the description of the inside of the reactor containment vessel 17 on the left side in FIG. 1 will be omitted.
【００２７】すなわち、原子炉格納容器ベント装置の気
密容器１にはスクラビング用水２が収容され、原子炉格
納容器17内の雰囲気ガスをスクラビング用水２に導入す
るための第１の連絡配管３が接続されている。気密容器
１には気相部１ａの気体を大気放出口５から外部の環境
に放出するための放出配管４が接続されている。That is, the scrubbing water 2 is contained in the airtight container 1 of the reactor containment vessel venting device, and the first connecting pipe 3 for introducing the atmospheric gas in the reactor containment container 17 into the scrubbing water 2 is connected. Has been done. The airtight container 1 is connected with a discharge pipe 4 for discharging the gas in the gas phase portion 1a from the atmosphere discharge port 5 to the outside environment.
【００２８】気密容器１の気相部１ａの気体を給水タン
ク６に導くため、気密容器１の気相部１ａと給水タンク
６の要部は第２の連絡配管７で接続されている。この第
２の連絡配管７には常時は閉状態で給水時に開動作させ
る連絡弁８が設置されている。また、給水タンク６内の
貯蔵水を気密容器１に導くため、気密容器１の気相部１
ａと給水タンク６の底部は給水配管９で接続される。こ
の給水配管９には常時は閉状態で給水時に開動作させる
給水弁10が接続されている。In order to guide the gas in the gas phase portion 1a of the airtight container 1 to the water supply tank 6, the gas phase portion 1a of the airtight container 1 and the main part of the water supply tank 6 are connected by the second connecting pipe 7. The second communication pipe 7 is provided with a communication valve 8 which is normally closed and is opened when water is supplied. Further, since the stored water in the water supply tank 6 is guided to the airtight container 1, the gas phase portion 1 of the airtight container 1
a and the bottom of the water supply tank 6 are connected by a water supply pipe 9. A water supply valve 10 that is normally closed and opens when water is supplied is connected to the water supply pipe 9.
【００２９】スクラビング用水貯蔵タンク11に貯蔵水を
給水タンク６に導くため、スクラビング用水貯蔵タンク
11の底部と給水タンク６の頂部は第３の連絡配管12で接
続されている。この第３の連絡配管12には常時は閉状態
で給水時に開動作させる連絡弁13が設置されている。給
水タンク６内部の雰囲気を外部に解放するため、給水タ
ンク６頂部には逃がし配管14が接続されている。この逃
がし配管14には常時は閉状態で給水時に開動作させる開
閉弁15が接続されている。In order to guide the stored water to the water supply tank 6 for the scrubbing water storage tank 11, the scrubbing water storage tank
The bottom of 11 and the top of the water supply tank 6 are connected by a third connecting pipe 12. The third communication pipe 12 is provided with a communication valve 13 which is normally closed and is opened when water is supplied. A relief pipe 14 is connected to the top of the water supply tank 6 in order to release the atmosphere inside the water supply tank 6 to the outside. An on-off valve 15 that is normally closed and opens when water is supplied is connected to the relief pipe 14.
【００３０】給水タンク６は気密容器１のスクラビング
効果に有為な低下を及ぼすようなスクラビング用水２の
蒸発量に相当する量の供給水を貯蔵するものでなければ
ならず、その貯蔵水を完全に気密容器１に給水する必要
から、気密容器１のスクラビング用水２の液面よりも十
分に高い位置に設置されている。The water supply tank 6 must store a quantity of supply water corresponding to the amount of evaporation of the scrubbing water 2 which causes a significant reduction in the scrubbing effect of the airtight container 1, and the stored water is completely stored. Since it is necessary to supply water to the airtight container 1, it is installed at a position sufficiently higher than the liquid level of the scrubbing water 2 in the airtight container 1.
【００３１】スクラビング用水貯蔵タンク11はその貯蔵
水の水頭圧により給水タンク６に給水するものであり、
その底部が給水タンク要部より高い位置になるように設
置される。The scrubbing water storage tank 11 supplies water to the water supply tank 6 by the head pressure of the stored water.
It is installed so that its bottom is higher than the main part of the water tank.
【００３２】また、図中の各弁は全交流電源喪失事象時
にも機能し得るように、直流電動弁の使用、空気作動弁
の使用等を行う。Further, each valve in the figure uses a DC motor operated valve, an air operated valve, etc. so that it can function even in the event of a loss of all AC power supplies.
【００３３】[0033]
【発明の効果】本発明によれば、苛酷事故時に発生した
気体の原子炉格納容器ベント装置でのスクラビングによ
り蒸発減少したスクラビング用水の供給が自然に働く物
理作用のみで可能である。According to the present invention, it is possible to supply scrubbing water, which has been vaporized and reduced by scrubbing of the gas generated at the time of a severe accident in the reactor containment vessel venting device, only by a physical action that works naturally.
【００３４】この結果、ポンプ等の動的機器を使用した
格納容器ベント装置へのスクラビング用水の供給方式と
比較して駆動源としての交流電源を必要とせず、かつ高
い信頼性を有することとなり、このスクラビング用水給
水装置を有する原子炉格納容器ベント装置の信頼性も向
上する。As a result, as compared with the method of supplying scrubbing water to the containment vessel venting device using a dynamic device such as a pump, it does not require an AC power source as a drive source and has high reliability, The reliability of the reactor containment vessel vent device having this scrubbing water supply device is also improved.
【図１】本発明に係る原子炉格納容器ベント装置の一実
施例を示す概略系統図。FIG. 1 is a schematic system diagram showing an embodiment of a reactor containment vessel vent device according to the present invention.
【図２】従来の原子炉格納容器ベント装置を示す概略系
統図。FIG. 2 is a schematic system diagram showing a conventional reactor containment vessel venting device.
１…気密容器、１ａ…気相部、２…スクラビング用水、
３…第１の連絡配管、４…放出配管、５…大気放出口、
６…給水タンク、７…第２の連絡配管、８…連絡弁、９
…気密容器給水配管、10…給水弁、11…スクラビング用
水貯蔵タンク、12…第３の連絡配管、13…連絡弁、14…
逃がし配管、15…開閉弁、16…原子炉建屋、17…原子炉
格納容器、18…ドライウェル、19…ウエットウェル、20
…原子炉圧力容器、21…圧力抑制水、22…ベント管、23
…吸入配管、24…連絡弁、25…スクラビング配管、26…
スクラビング弁。1 ... Airtight container, 1a ... Gas phase part, 2 ... Scrubbing water,
3 ... 1st communication piping, 4 ... discharge piping, 5 ... atmosphere discharge port,
6 ... Water tank, 7 ... Second communication pipe, 8 ... Communication valve, 9
… Airtight container water supply pipe, 10… Water supply valve, 11… Scrubbing water storage tank, 12… Third communication pipe, 13… Communication valve, 14…
Relief piping, 15 ... On-off valve, 16 ... Reactor building, 17 ... Reactor containment vessel, 18 ... Dry well, 19 ... Wet well, 20
… Reactor pressure vessel, 21… Pressure suppression water, 22… Vent pipe, 23
… Suction line, 24… Communication valve, 25… Scrubbing line, 26…
Scrubbing valve.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.5 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ２１Ｃ 13/00 ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 5 Identification code Office reference number FI technical display location G21C 13/00
Claims (1)
ットウェルとを接続する第１の連絡配管を介して接続さ
れたスクラビング用水を収容する気密容器と、この気密
容器の気相部から第２の連絡配管を介してその頂部に接
続された給水タンクと、この給水タンクに第３の連絡配
管を介して該給水タンクよりも高い位置に設けられて接
続されたスクラビング用水貯蔵タンクと、前記気密タン
クに接続された放出配管と、前記気密容器の下部と給水
タンクの下部との間に接続された給水配管と、前記給水
タンクの頂部に接続された逃がし配管と、前記各々の配
管に設けられた弁とを具備したことを特徴とする原子炉
格納容器ベント装置。1. An airtight container for containing scrubbing water, which is connected through a first connecting pipe connecting a dry well and a wet well in a reactor containment vessel, and a gas phase portion of the airtight container to a second portion. A water supply tank connected to the top of the water supply tank via a communication pipe, a scrubbing water storage tank connected to the water supply tank via a third communication pipe at a position higher than the water supply tank, and the airtight A discharge pipe connected to the tank, a water supply pipe connected between the lower part of the airtight container and the lower part of the water supply tank, a relief pipe connected to the top of the water supply tank, and each of the pipes. A reactor containment vessel venting device, comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5005852A JPH06214081A (en) | 1993-01-18 | 1993-01-18 | Vent device for nuclear reactor containment vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5005852A JPH06214081A (en) | 1993-01-18 | 1993-01-18 | Vent device for nuclear reactor containment vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06214081A true JPH06214081A (en) | 1994-08-05 |
Family
ID=11622526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5005852A Pending JPH06214081A (en) | 1993-01-18 | 1993-01-18 | Vent device for nuclear reactor containment vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06214081A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013205524A1 (en) * | 2013-03-27 | 2014-10-02 | Areva Gmbh | Venting system for the containment of a nuclear facility |
| JP2015175775A (en) * | 2014-03-17 | 2015-10-05 | 日立Ｇｅニュークリア・エナジー株式会社 | Ph adjusting system for reactor containment vessel |
| JP2018136172A (en) * | 2017-02-21 | 2018-08-30 | 株式会社東芝 | Emergency core cooling system and boiling-water nuclear power plant using the same |
-
1993
- 1993-01-18 JP JP5005852A patent/JPH06214081A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013205524A1 (en) * | 2013-03-27 | 2014-10-02 | Areva Gmbh | Venting system for the containment of a nuclear facility |
| US10438706B2 (en) | 2013-03-27 | 2019-10-08 | Framatome Gmbh | Venting system for the containment of a nuclear plant and method of operating the venting system |
| JP2015175775A (en) * | 2014-03-17 | 2015-10-05 | 日立Ｇｅニュークリア・エナジー株式会社 | Ph adjusting system for reactor containment vessel |
| JP2018136172A (en) * | 2017-02-21 | 2018-08-30 | 株式会社東芝 | Emergency core cooling system and boiling-water nuclear power plant using the same |
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