JP2006220510A - Discharge water cooling device for reactor-cooling water purifying system - Google Patents

Discharge water cooling device for reactor-cooling water purifying system Download PDF

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JP2006220510A
JP2006220510A JP2005033486A JP2005033486A JP2006220510A JP 2006220510 A JP2006220510 A JP 2006220510A JP 2005033486 A JP2005033486 A JP 2005033486A JP 2005033486 A JP2005033486 A JP 2005033486A JP 2006220510 A JP2006220510 A JP 2006220510A
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water
temperature
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reactor
purification system
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Junichi Hiraguchi
淳一 平口
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Toshiba Corp
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    • 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
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Abstract

<P>PROBLEM TO BE SOLVED: To precisely and easily control the temperature of water discharged into a waste liquid processing tank, by automatically controlling the temperature of water discharged from dump pipes of a reactor-cooling water purifying system during pressure tightness leakage testing and the like. <P>SOLUTION: A heat exchanger means 9 for cooling water in the dump pipes 4 of the reactor cooling water purifying system or in a waste liquid tank 5 and a cooling temperature control means 10 for controlling the cooling temperature of water by the heat exchanger means 9 are provided. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、原子力発電プラントの原子炉耐圧漏洩検査時における原子炉冷却水浄化系のダンプ水を冷却するための原子炉冷却水浄化系ダンプ水冷却装置に関する。   The present invention relates to a nuclear reactor cooling water purification system dump water cooling device for cooling dump water of a nuclear reactor cooling water purification system at the time of a reactor pressure-resistant leak inspection of a nuclear power plant.

原子炉耐圧漏洩検査とは、例えば沸騰水型原子炉の場合、原子炉圧力容器を高温水で満水にし、制御棒駆動ポンプにて注水しながら原子炉圧力容器内を昇圧し、所定時間（４時間）保持後に、漏洩の有無を確認する検査である。   In the case of a boiling water reactor, for example, in the case of a boiling water reactor, the reactor pressure vessel is filled with high-temperature water, the pressure inside the reactor pressure vessel is increased while water is injected by a control rod drive pump, and a predetermined time (4 (Time) This is an inspection to check for leakage after holding.

この原子炉耐圧漏洩検査時には、制御棒駆動ポンプから絶えず水を原子炉圧力容器に注水するとともに、原子炉冷却水浄化系配管に接続された原子炉冷却水浄化系ダンプ配管から廃液処理タンクに水を抜き、原子炉圧力を調整する。   During this reactor pressure-resistant leak inspection, water is continuously injected into the reactor pressure vessel from the control rod drive pump, and water is supplied to the waste liquid treatment tank from the reactor cooling water purification system dump pipe connected to the reactor cooling water purification system pipe. To adjust the reactor pressure.

この場合、廃液処理タンクに送られる水の温度が高いと、廃液処理に影響が出るため、温度を低下する必要がある。そこで従来では、原子炉冷却水浄化系ダンプ配管から排出される水が高温の場合には、原子炉冷却水浄化系ダンプ配管、廃液処理タンク等に棒状温度計を取付け、指示値を確認しながら、廃液処理タンクに注水する弁を操作し、廃液処理タンク内の温度を調整していた。   In this case, if the temperature of the water sent to the waste liquid treatment tank is high, the waste liquid treatment is affected, and thus the temperature needs to be lowered. Therefore, conventionally, when the water discharged from the reactor cooling water purification system dump pipe is hot, a rod-shaped thermometer is attached to the reactor cooling water purification system dump pipe, waste liquid treatment tank, etc., while checking the indicated value. The temperature of the waste liquid treatment tank was adjusted by operating a valve for pouring water into the waste liquid treatment tank.

図７は、このような原子炉冷却水浄化系ダンプ水冷却を行う従来の装置構成例を示している。   FIG. 7 shows an example of a conventional apparatus configuration that performs such reactor water purification system dump water cooling.

図７において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。制御棒駆動水ポンプ２は、原子炉圧力容器耐圧漏洩検査中に停止することができないため、原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。   In FIG. 7, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. Since the control rod drive water pump 2 cannot be stopped during the reactor pressure vessel pressure leak inspection, the reactor cooling water purification branched from the reactor cooling water purification system piping 3 as the pressure adjustment of the reactor pressure vessel 1 Drainage is performed from the system dump pipe 4.

この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。原子炉冷却水浄化系ダンプ配管４および廃液処理タンク５には、棒状温度計６が設けられている。また、廃液処理タンク５には、冷却用の水を供給するための廃液処理タンク注水配管７が設けられ、この廃液処理タンク注水配管６には廃液処理タンク注水止弁８が取付けられている。   The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5. A rod-shaped thermometer 6 is provided in the reactor cooling water purification system dump pipe 4 and the waste liquid treatment tank 5. The waste liquid treatment tank 5 is provided with a waste liquid treatment tank water injection pipe 7 for supplying cooling water, and a waste liquid treatment tank water injection stop valve 8 is attached to the waste liquid treatment tank water injection pipe 6.

そして、原子炉冷却水浄化系ダンプ配管４から廃液処理タンク５に排出される水の温度が高い場合には、原子炉冷却水浄化系ダンプ配管４及び廃液処理タンク５に取付けられた棒状温度計６の指示値を確認しながら、手動操作により、廃液処理タンク注水止弁７を操作し、廃液処理タンク注水配管７から廃液処理タンク５に注水して冷却を行っている。   When the temperature of the water discharged from the reactor cooling water purification system dump pipe 4 to the waste liquid treatment tank 5 is high, a rod-shaped thermometer attached to the reactor cooling water purification system dump pipe 4 and the waste liquid treatment tank 5 While confirming the indicated value of 6, the waste liquid treatment tank water injection stop valve 7 is operated by manual operation, and water is injected from the waste liquid treatment tank water injection pipe 7 to the waste liquid treatment tank 5 for cooling.

原子炉発電所の定期検査において、原子炉圧力容器耐圧漏洩検査は必須であり、検査時の原子炉冷却水浄化系ダンプ配管から排出される水温を制御する方法が求められている。   In the periodic inspection of a nuclear reactor power plant, a reactor pressure vessel pressure leak inspection is essential, and a method for controlling the water temperature discharged from the reactor cooling water purification system dump pipe at the time of inspection is required.

しかし、従来では上述したように、排水温度の確認、排水温度を下げるための注水量の調整等が手動操作によって行われており、随時廃液処理タンク内への排水温度の確認及び注水量の確認等を行う必要があった。   However, as described above, conventionally, as described above, the confirmation of the drainage temperature and the adjustment of the amount of water injected to lower the temperature of the drainage are performed manually. It was necessary to do etc.

本発明は、このような事情に鑑みてなされたものであり、原子炉冷却水浄化系ダンプ配管から排出される水温を自動的に制御できるようにし、廃液処理タンク内への排水温度管理を的確かつ容易に行うことができる原子炉冷却水浄化系ダンプ水冷却装置を提供することを目的とする。   The present invention has been made in view of such circumstances, and enables the water temperature discharged from the reactor cooling water purification system dump pipe to be automatically controlled to accurately manage the temperature of the waste water into the waste liquid treatment tank. It is another object of the present invention to provide a reactor water purification system dump water cooling device that can be easily performed.

前記の目的を達成するため、請求項１に係る発明では、停止状態の原子炉に水を充填して検査を行う際に適用され、前記原子炉内の高温水を、原子炉冷却水浄化系配管に接続された原子炉冷却水浄化系ダンプ配管により廃液処理タンクに導いて冷却する原子炉冷却水浄化系ダンプ水冷却装置において、前記原子炉冷却水浄化系ダンプ配管内の水または前記廃液タンク内の水を冷却する熱交換手段と、この熱交換手段による前記水の冷却温度を制御する冷却温度制御手段とを備えたことを特徴とする原子炉冷却水浄化系ダンプ水冷却装置を提供する。   In order to achieve the above object, the invention according to claim 1 is applied when water reactor is filled with water and inspected, and high-temperature water in the reactor is converted into a reactor cooling water purification system. In the reactor cooling water purification system dump water cooling apparatus, which is led to the waste liquid treatment tank and cooled by the reactor cooling water purification system dump pipe connected to the pipe, the water in the reactor cooling water purification system dump pipe or the waste liquid tank Provided is a nuclear reactor cooling water purification system dump water cooling device comprising a heat exchanging means for cooling water in the inside and a cooling temperature control means for controlling the cooling temperature of the water by the heat exchanging means. .

請求項２に係る発明では、前記冷却温度制御手段が、前記原子炉冷却水浄化系ダンプ配管内の水または前記廃液タンク内の水の温度を検出する温度検出器と、この温度検出器により検出された水温に基づく温度信号を発する信号発信器と、この信号発信器の温度信号に基づいて前記水の冷却温度を制御する温度制御器とを備えた原子炉冷却水浄化系ダンプ水冷却装置を提供する。   In the invention according to claim 2, the cooling temperature control means detects a temperature of the water in the reactor cooling water purification system dump pipe or the water in the waste liquid tank, and the temperature detector detects the temperature. A reactor cooling water purification system dump water cooling device comprising a signal transmitter for generating a temperature signal based on the water temperature and a temperature controller for controlling the cooling temperature of the water based on the temperature signal of the signal transmitter. provide.

請求項３に係る発明では、前記熱交換手段が、前記高温水を外部水と熱交換する水冷熱交換器、または前記高温水に外部水を注入する水注入冷却装置とされている請求項１または２記載の原子炉冷却水浄化系ダンプ水冷却装置を提供する。   In the invention according to claim 3, the heat exchanging means is a water cooling heat exchanger for exchanging heat of the high temperature water with external water, or a water injection cooling device for injecting external water into the high temperature water. Alternatively, a reactor water purification system dump water cooling device according to 2 is provided.

請求項４に係る発明では、前記原子炉冷却水浄化系ダンプ配管を迂回して前記原子炉冷却水浄化系配管と前記廃液処理タンクとを接続するバイパス配管を備え、前記原子炉冷却水浄化系ダンプ配管または前記バイパス配管の少なくともいずれか一方に、前記熱交換手段が設けられている原子炉冷却水浄化系ダンプ水冷却装置を提供する。   The invention according to claim 4 includes a bypass pipe that bypasses the reactor cooling water purification system dump pipe and connects the reactor cooling water purification system pipe and the waste liquid treatment tank, and includes the reactor cooling water purification system. A reactor coolant purification system dump water cooling device in which the heat exchange means is provided in at least one of a dump pipe and the bypass pipe is provided.

本発明によれば、原子炉冷却水浄化系ダンプ配管内の水または廃液タンク内の水を冷却する熱交換手段と、この熱交換手段による水の冷却温度を制御する冷却温度制御手段とを備えたことにより、原子炉冷却水浄化系ダンプ配管から排出される水温を自動的に制御することができ、廃液処理タンク内への排水温度管理を的確かつ容易に行うことができる。   According to the present invention, it is provided with heat exchange means for cooling water in the reactor cooling water purification system dump pipe or water in the waste liquid tank, and cooling temperature control means for controlling the cooling temperature of water by this heat exchange means. As a result, the water temperature discharged from the reactor cooling water purification system dump pipe can be automatically controlled, and the waste water temperature management into the waste liquid treatment tank can be accurately and easily performed.

以下、本発明に係る原子炉冷却水浄化系ダンプ水冷却装置の実施形態について、図面を参照して説明する。なお、以下の実施形態では、沸騰水型原子炉における原子炉圧力容器冷却水浄化系ダンプ水冷却装置について説明するが、他の型式の原子炉冷却水浄化系ダンプ水冷却装置にも同様に適用することができる。   Hereinafter, an embodiment of a reactor water purification system dump water cooling device according to the present invention will be described with reference to the drawings. In the following embodiments, a reactor pressure vessel cooling water purification system dump water cooling device in a boiling water reactor will be described, but the same applies to other types of reactor cooling water purification system dump water cooling devices. can do.

［第１実施形態（図１）］
図１は、本発明の第１実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [First Embodiment (FIG. 1)]
FIG. 1 is a system configuration diagram showing a nuclear reactor cooling water purification system dump water cooling device according to a first embodiment of the present invention.

図１において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 1, the reactor pressure vessel 1 is filled with high-temperature water, and the pressure in the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

本実施形態ではこのような構成のもとで、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４に、この原子炉冷却水浄化系ダンプ配管４内の水を冷却する熱交換手段としてダンプ水冷却用熱交換器９が設けられるとともに、このダンプ水冷却用熱交換器９による水の冷却温度を制御する冷却温度制御手段として冷却温度設定器１０が設けられている。冷却温度設定器１０では、例えば操作員等からの情報入力あるいは他の入力による運転操作が行われ、運転中にはダンプ水冷却用熱交換器９における熱交換量等の検出値等に基づき、フィードバック制御等により水温を常時所定温度まで低下させる設定が行われる。   In this embodiment, under such a configuration, the water in the reactor cooling water purification system dump pipe 4 is cooled to the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. A heat exchanger 9 for cooling the dump water is provided as a heat exchanging means, and a cooling temperature setting device 10 is provided as a cooling temperature control means for controlling the cooling temperature of the water by the heat exchanger 9 for cooling the dump water. . In the cooling temperature setting device 10, for example, an operation operation by information input from an operator or the like or other input is performed, and during operation, based on a detection value or the like of the heat exchange amount in the heat exchanger 9 for dump water cooling, Setting is made to constantly reduce the water temperature to a predetermined temperature by feedback control or the like.

このように構成された本実施形態によれば、原子炉冷却水浄化系ダンプ配管４の途中にダンプ水冷却用熱交換器９を設置し、原子炉冷却水浄化系ダンプ配管４から廃液処理タンク５に放出される排水を、冷却温度設定器１０の設定値に基づく所定温度まで、ダンプ水冷却用熱交換器９によって冷却することができる。   According to the present embodiment configured as described above, the heat exchanger 9 for cooling the dump water is installed in the middle of the reactor cooling water purification system dump pipe 4, and the waste liquid treatment tank is connected from the reactor cooling water purification system dump pipe 4. The drainage discharged to 5 can be cooled by the dump water cooling heat exchanger 9 to a predetermined temperature based on the set value of the cooling temperature setter 10.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を自動的に制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を的確かつ容易に行うことができる。   Therefore, according to the present embodiment, the water temperature discharged from the reactor cooling water purification system dump pipe 4 can be automatically controlled, so that conventional work such as adjusting water injection to the waste liquid treatment tank 5 can be performed. It becomes unnecessary, and the temperature management of the waste water into the waste liquid treatment tank 5 can be performed accurately and easily.

［第２実施形態（図２）］
図２は、本発明の第２実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [Second Embodiment (FIG. 2)]
FIG. 2 is a system configuration diagram showing a reactor coolant purification system dump water cooling device according to a second embodiment of the present invention.

図２において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 2, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

このような構成のもとで、原子炉冷却水浄化系ダンプ配管４には、この原子炉冷却水浄化系ダンプ配管４内の高温水を冷却する熱交換手段として、ダンプ水冷却用熱交換器９が設けられている。このダンプ水冷却用熱交換器９は、高温水を外部水と熱交換する水冷熱交換器として構成されている。すなわち、ダンプ水冷却用熱交換器９には、外部水ａを循環させる外部水循環配管１１が設けられ、この外部水循環配管１１には外部水制御弁１２が設けられている。   Under such a configuration, the reactor cooling water purification system dump pipe 4 has a dump water cooling heat exchanger as a heat exchange means for cooling the high-temperature water in the reactor cooling water purification system dump pipe 4. 9 is provided. This dump water cooling heat exchanger 9 is configured as a water-cooled heat exchanger for exchanging heat of high-temperature water with external water. That is, the dump water cooling heat exchanger 9 is provided with an external water circulation pipe 11 that circulates the external water a, and the external water circulation valve 11 is provided with an external water control valve 12.

一方、ダンプ水冷却用熱交換器９を制御する冷却温度制御手段として、原子炉冷却水浄化系ダンプ配管４内の水の温度を検出する温度検出器１３と、この温度検出器１３により検出された水温に基づく温度信号を発する信号発信器１４と、この信号発信器１４の温度信号に基づいて水の冷却温度を制御する温度制御器１５とが備えられている。   On the other hand, as a cooling temperature control means for controlling the heat exchanger 9 for cooling the dump water, a temperature detector 13 for detecting the temperature of the water in the reactor cooling water purification system dump pipe 4 and the temperature detector 13 detect the temperature. A signal transmitter 14 for generating a temperature signal based on the water temperature and a temperature controller 15 for controlling the cooling temperature of water based on the temperature signal of the signal transmitter 14 are provided.

そして、温度制御器１５から外部水制御弁１２に制御信号が送られ、温度検出器１３の検出温度に基づいて外部水制御弁１２が所定開度に制御され、これにより外部水循環配管１１を流れる外部水ａの流量が制御され、原子炉冷却水浄化系ダンプ配管４から廃液処理タンク５に放出される排水の温度が、温度制御器１５の設定値に基づいて所定温度まで冷却される。   Then, a control signal is sent from the temperature controller 15 to the external water control valve 12, and the external water control valve 12 is controlled to a predetermined opening based on the temperature detected by the temperature detector 13, thereby flowing through the external water circulation pipe 11. The flow rate of the external water a is controlled, and the temperature of the wastewater discharged from the reactor cooling water purification system dump pipe 4 to the waste liquid treatment tank 5 is cooled to a predetermined temperature based on the set value of the temperature controller 15.

このように構成された本実施形態によれば、温度検出器１３により検出される原子炉冷却水浄化系ダンプ配管４を流れる水の温度に対応して、廃液処理タンク５に放出される排水温度を温度設定器１５の設定値に基づく所定温度まで確実に冷却することができる。   According to the present embodiment configured as described above, the temperature of the drainage discharged to the waste liquid treatment tank 5 corresponding to the temperature of the water flowing through the reactor cooling water purification system dump pipe 4 detected by the temperature detector 13. Can be reliably cooled to a predetermined temperature based on the set value of the temperature setter 15.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を一層的確かつ容易に行うことができる。   Therefore, according to this embodiment, the water temperature discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy, so that the water injection to the waste liquid treatment tank 5 is adjusted, etc. Therefore, the temperature control of the waste water into the waste liquid treatment tank 5 can be more accurately and easily performed.

［第３実施形態（図３）］
図３は、本発明の第３実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [Third Embodiment (FIG. 3)]
FIG. 3 is a system configuration diagram showing a nuclear reactor coolant purification system dump water cooling device according to a third embodiment of the present invention.

図３において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 3, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

本実施形態では、このような構成のもとで、原子炉冷却水浄化系ダンプ配管４から分岐してこれを迂回し、原子炉冷却水浄化系配管３と廃液処理タンク５とを接続するバイパス配管１６が設けられている。   In this embodiment, under such a configuration, the reactor cooling water purification system dump pipe 4 is branched and bypassed to bypass the reactor cooling water purification system pipe 3 and the waste liquid treatment tank 5. A pipe 16 is provided.

そして、原子炉冷却水浄化系ダンプ配管４にはダンプ配管止め弁１７が設置され、バイパス配管１６には、ダンプ水冷却用熱交換器９と、このダンプ水冷却用熱交換器９の上流側に配置される熱交換器前弁１８と、ダンプ水冷却用熱交換器９の下流側に配置される熱交換器後弁１９とが設けられている。   A dump pipe stop valve 17 is installed in the reactor cooling water purification system dump pipe 4, and the bypass pipe 16 includes a dump water cooling heat exchanger 9 and an upstream side of the dump water cooling heat exchanger 9. The heat exchanger pre-valve 18 disposed on the heat exchanger and the heat exchanger rear valve 19 disposed downstream of the dump water cooling heat exchanger 9 are provided.

バイパス配管１６に設けられたダンプ水冷却用熱交換器９には、このダンプ水冷却用熱交換器９による水の冷却温度を制御する冷却温度制御手段として冷却温度設定器１０が設けられている。冷却温度設定器１０では、例えば操作員等からの情報入力あるいは他の入力による運転操作が行われ、運転中には操作員等からの情報入力あるいは他の入力による運転操作が行われ、運転中にはダンプ水冷却用熱交換器９における熱交換量等の検出値等に基づき、フィードバック制御等により水温を常時所定温度まで低下させる設定が行われる。   The dump water cooling heat exchanger 9 provided in the bypass pipe 16 is provided with a cooling temperature setting device 10 as cooling temperature control means for controlling the cooling temperature of water by the dump water cooling heat exchanger 9. . In the cooling temperature setting device 10, for example, an operation input by an information input from an operator or the like or other input is performed, and an operation input by an information input from the operator or the like or other input is performed during the operation. Is set such that the water temperature is always reduced to a predetermined temperature by feedback control or the like based on a detected value such as a heat exchange amount in the heat exchanger 9 for cooling the dump water.

また、原子炉冷却水浄化系ダンプ配管４に設けられたダンプ配管止め弁１７と、バイパス配管１６に設けられた熱交換器前弁１８および熱交換器後弁１９とを制御する弁制御装置２０が設けられている。この弁制御装置２０においても、例えば操作員等からの情報入力あるいは他の入力による運転操作が行われ、運転中には操作員等からの情報入力あるいは他の入力による運転操作が行われる。そして、この弁制御装置２０からの出力により、ダンプ水温度が高い場合にはダンプ配管止め弁１７を閉とする制御が行われ、ダンプ水冷却用熱交換器前弁１８と熱交換器後弁１９を開とする制御が行われ、これによりダンプバイパス配管１６側にダンプ水が流れ、ダンプ水が冷却後廃水処理タンク５に廃水される。   Further, a valve control device 20 that controls a dump pipe stop valve 17 provided in the reactor coolant purification system dump pipe 4 and a heat exchanger front valve 18 and a heat exchanger rear valve 19 provided in the bypass pipe 16. Is provided. Also in this valve control device 20, for example, an operation operation by information input from an operator or the like or other input is performed, and an operation operation by information input from the operator or the like or other input is performed during operation. The output from the valve control device 20 controls the dump pipe stop valve 17 to be closed when the dump water temperature is high. The dump water cooling heat exchanger front valve 18 and the heat exchanger rear valve are controlled. Control is performed to open 19, whereby dump water flows to the dump bypass pipe 16 side, and the dump water is discharged into the wastewater treatment tank 5 after cooling.

また、ダンプ水が水温が低い場合には、ダンプ配管止め弁１７を開とする制御が行われ、ダンプ水冷却用熱交換器前弁１８と熱交換器後弁１９を閉とする制御が行われ、ダンプ水が原子炉冷却水浄化系ダンプ配管４に流れて廃水処理タンク５への廃水が行われる。   Also, when the temperature of the dump water is low, control is performed to open the dump pipe stop valve 17 and control to close the dump water cooling heat exchanger front valve 18 and the heat exchanger rear valve 19 is performed. Then, the dump water flows into the reactor cooling water purification system dump pipe 4 and is discharged into the waste water treatment tank 5.

このように構成された本実施形態においては、必要時のみダンプ水の冷却を行うことができるとともに、廃水処理タンク５に排水する排水の温度が十分低い場合には、ダンプ水冷却用熱交換器９を使用する必要が無く、ダンプ水冷却用熱交換器９の点検が容易に実施できる。   In the present embodiment configured as described above, the dump water can be cooled only when necessary, and when the temperature of the waste water discharged to the waste water treatment tank 5 is sufficiently low, the heat exchanger for cooling the dump water It is not necessary to use 9, and the inspection of the heat exchanger 9 for cooling the dump water can be easily performed.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を一層的確かつ容易に行うことができるとともに、必要時のみダンプ水の冷却を行うことができ、またダンプ水冷却用熱交換器９の点検が容易に実施できる等の効果が奏される。   Therefore, according to this embodiment, the water temperature discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy, so that the water injection to the waste liquid treatment tank 5 is adjusted, etc. This eliminates the need for conventional work, and makes it possible to more accurately and easily control the temperature of the waste water into the waste liquid treatment tank 5 and to cool the dump water only when necessary, and to exchange heat for cooling the dump water. The effect that the inspection of the vessel 9 can be easily performed is exhibited.

なお、本実施形態では、前記構成のほか、ダンプ水冷却用熱交換器９を原子炉冷却水浄化系ダンプ配管４またはバイパス配管１６の少なくともいずれか一方に設ける構成として、種々の態様で実施することができる。   In the present embodiment, in addition to the above-described configuration, the dump water cooling heat exchanger 9 is provided in various modes as a configuration in which at least one of the reactor coolant purification system dump pipe 4 and the bypass pipe 16 is provided. be able to.

［第４実施形態（図４）］
図４は、本発明の第４実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [Fourth Embodiment (FIG. 4)]
FIG. 4 is a system configuration diagram showing a nuclear reactor cooling water purification system dump water cooling device according to a fourth embodiment of the present invention.

図４において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 4, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

本実施形態では、このような構成のもとで、原子炉冷却水浄化系ダンプ配管４から分岐してこれを迂回し、原子炉冷却水浄化系配管３と廃液処理タンク５とを接続するバイパス配管１６が設けられている。   In this embodiment, under such a configuration, the reactor cooling water purification system dump pipe 4 is branched and bypassed to bypass the reactor cooling water purification system pipe 3 and the waste liquid treatment tank 5. A pipe 16 is provided.

そして、原子炉冷却水浄化系ダンプ配管４にはダンプ配管止め弁１７が設置され、バイパス配管１６には、ダンプ水冷却用熱交換器９と、このダンプ水冷却用熱交換器９の上流側に配置される熱交換器前弁１８と、ダンプ水冷却用熱交換器９の下流側に配置される熱交換器後弁１９とが設けられている。   A dump pipe stop valve 17 is installed in the reactor cooling water purification system dump pipe 4, and the bypass pipe 16 includes a dump water cooling heat exchanger 9 and an upstream side of the dump water cooling heat exchanger 9. The heat exchanger pre-valve 18 disposed on the heat exchanger and the heat exchanger rear valve 19 disposed downstream of the dump water cooling heat exchanger 9 are provided.

バイパス配管１６に設けられたダンプ水冷却用熱交換器９は、高温水を外部水と熱交換する水冷熱交換器として構成されている。すなわち、ダンプ水冷却用熱交換器９には、外部水ａを循環させる外部水循環配管１１が設けられ、この外部水循環配管１１には外部水制御弁１２が設けられている。   The heat exchanger 9 for cooling the dump water provided in the bypass pipe 16 is configured as a water-cooled heat exchanger that exchanges heat between high-temperature water and external water. That is, the dump water cooling heat exchanger 9 is provided with an external water circulation pipe 11 that circulates the external water a, and the external water circulation valve 11 is provided with an external water control valve 12.

一方、ダンプ水冷却用熱交換器９を制御する冷却温度制御手段として、原子炉冷却水浄化系ダンプ配管４内の水の温度を検出する温度検出器１３と、この温度検出器１３により検出された水温に基づく温度信号を発する信号発信器１４と、この信号発信器１４の温度信号に基づいて水の冷却温度を制御する温度制御器１５とが備えられている。   On the other hand, as a cooling temperature control means for controlling the heat exchanger 9 for cooling the dump water, a temperature detector 13 for detecting the temperature of the water in the reactor cooling water purification system dump pipe 4 and the temperature detector 13 detect the temperature. A signal transmitter 14 for generating a temperature signal based on the water temperature and a temperature controller 15 for controlling the cooling temperature of water based on the temperature signal of the signal transmitter 14 are provided.

そして、温度制御器１５から外部水制御弁１２に制御信号が送られ、温度検出器１３の検出温度に基づいて外部水制御弁１２が所定開度に制御され、これにより外部水循環配管１１を流れる外部水ａの流量が制御され、原子炉冷却水浄化系ダンプ配管４から廃液処理タンク５に放出される排水の温度が、温度制御器１５の設定値に基づいて所定温度まで冷却される。   Then, a control signal is sent from the temperature controller 15 to the external water control valve 12, and the external water control valve 12 is controlled to a predetermined opening based on the temperature detected by the temperature detector 13, thereby flowing through the external water circulation pipe 11. The flow rate of the external water a is controlled, and the temperature of the wastewater discharged from the reactor cooling water purification system dump pipe 4 to the waste liquid treatment tank 5 is cooled to a predetermined temperature based on the set value of the temperature controller 15.

また、原子炉冷却水浄化系ダンプ配管４に設けられたダンプ配管止め弁１７と、バイパス配管１６に設けられた熱交換器前弁１８および熱交換器後弁１９とを制御する弁制御装置２０が設けられている。この弁制御装置２０においても、例えば操作員等からの情報入力あるいは他の入力による運転操作が行われ、運転中には操作員等からの情報入力あるいは他の入力による運転操作が行われる。そして、この弁制御装置２０からの出力により、ダンプ水温度が高い場合にはダンプ配管止め弁１７を閉とする制御が行われ、ダンプ水冷却用熱交換器前弁１８と熱交換器後弁１９を開とする制御が行われ、これによりダンプバイパス配管１６側にダンプ水が流れ、ダンプ水が冷却後廃水処理タンク５に廃水される。   Further, a valve control device 20 that controls a dump pipe stop valve 17 provided in the reactor coolant purification system dump pipe 4 and a heat exchanger front valve 18 and a heat exchanger rear valve 19 provided in the bypass pipe 16. Is provided. Also in this valve control device 20, for example, an operation operation by information input from an operator or the like or other input is performed, and an operation operation by information input from the operator or the like or other input is performed during operation. The output from the valve control device 20 controls the dump pipe stop valve 17 to be closed when the dump water temperature is high. The dump water cooling heat exchanger front valve 18 and the heat exchanger rear valve are controlled. Control is performed to open 19, whereby dump water flows to the dump bypass pipe 16 side, and the dump water is discharged into the wastewater treatment tank 5 after cooling.

また、ダンプ水が水温が低い場合には、ダンプ配管止め弁１７を開とする制御が行われ、ダンプ水冷却用熱交換器前弁１８と熱交換器後弁１９を閉とする制御が行われ、ダンプ水が原子炉冷却水浄化系ダンプ配管４に流れて廃水処理タンク５への廃水が行われる。   Also, when the temperature of the dump water is low, control is performed to open the dump pipe stop valve 17 and control to close the dump water cooling heat exchanger front valve 18 and the heat exchanger rear valve 19 is performed. Then, the dump water flows into the reactor cooling water purification system dump pipe 4 and is discharged into the waste water treatment tank 5.

このように構成された本実施形態においては、必要時のみダンプ水の冷却を行うことができるとともに、廃水処理タンク５に排水する排水の温度が十分低い場合には、ダンプ水冷却用熱交換器９を使用する必要が無く、ダンプ水冷却用熱交換器９の点検が容易に実施できる。   In the present embodiment configured as described above, the dump water can be cooled only when necessary, and when the temperature of the waste water discharged to the waste water treatment tank 5 is sufficiently low, the heat exchanger for cooling the dump water It is not necessary to use 9, and the inspection of the heat exchanger 9 for cooling the dump water can be easily performed.

また、温度検出器１３により検出される原子炉冷却水浄化系ダンプ配管４を流れる水の温度に対応して、廃液処理タンク５に放出される排水温度を温度設定器１５の設定値に基づく所定温度まで確実に冷却することができる。   Further, the waste water temperature discharged to the waste liquid treatment tank 5 is determined based on the set value of the temperature setter 15 in accordance with the temperature of the water flowing through the reactor cooling water purification system dump pipe 4 detected by the temperature detector 13. It can be reliably cooled to the temperature.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を一層的確かつ容易に行うことができるとともに、必要時のみダンプ水の冷却を行うことができ、またダンプ水冷却用熱交換器９の点検が容易に実施できる等の効果が奏される。   Therefore, according to this embodiment, the water temperature discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy, so that the water injection to the waste liquid treatment tank 5 is adjusted, etc. This eliminates the need for conventional work, and makes it possible to more accurately and easily control the temperature of the waste water into the waste liquid treatment tank 5 and to cool the dump water only when necessary, and to exchange heat for cooling the dump water. The effect that the inspection of the vessel 9 can be easily performed is exhibited.

また、原子炉冷却水浄化系ダンプ配管４から排出される水温を自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を一層的確かつ容易に行うことができる等の効果が奏される。   Moreover, since the water temperature discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy, conventional work such as adjustment of water injection to the waste liquid treatment tank 5 becomes unnecessary. In addition, there are effects that the temperature management of the waste water into the waste liquid treatment tank 5 can be performed more accurately and easily.

なお、本実施形態では、前記構成のほか、ダンプ水冷却用熱交換器９を原子炉冷却水浄化系ダンプ配管４またはバイパス配管１６の少なくともいずれか一方に設ける構成として、種々の態様で実施することができる。   In the present embodiment, in addition to the above-described configuration, the dump water cooling heat exchanger 9 is provided in various modes as a configuration in which at least one of the reactor coolant purification system dump pipe 4 and the bypass pipe 16 is provided. be able to.

［第５実施形態（図５）］
図５は、本発明の第５実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [Fifth Embodiment (FIG. 5)]
FIG. 5 is a system configuration diagram showing a nuclear reactor cooling water purification system dump water cooling device according to a fifth embodiment of the present invention.

図５において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 5, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

このような構成のもとで、原子炉冷却水浄化系ダンプ配管４には、この原子炉冷却水浄化系ダンプ配管４内の高温水を冷却する熱交換手段として、高温水に外部水ａを注入して冷却する水注入冷却装置２１が設けられている。この水注入冷却装置２１は、原子炉冷却水浄化系ダンプ配管４に外部水ａを注入する外部水注入配管２２と、この外部水注入配管２２への注入を制御する外部水注入制御弁２３とを備えた構成とされている。   Under such a configuration, the reactor cooling water purification system dump pipe 4 is supplied with external water a as a heat exchange means for cooling the high temperature water in the reactor cooling water purification system dump pipe 4. A water injection cooling device 21 for injecting and cooling is provided. The water injection cooling device 21 includes an external water injection pipe 22 that injects external water a into the reactor cooling water purification system dump pipe 4, and an external water injection control valve 23 that controls injection into the external water injection pipe 22. It is set as the structure provided with.

一方、ダンプ外部水注入制御弁２３を制御する冷却温度制御手段として、原子炉冷却水浄化系ダンプ配管４内の水の温度を検出する温度検出器１３と、この温度検出器１３により検出された水温に基づく温度信号を発する信号発信器１４と、この信号発信器１４の温度信号に基づいて水の冷却温度を制御する温度制御器１５とが備えられている。   On the other hand, as a cooling temperature control means for controlling the dump external water injection control valve 23, a temperature detector 13 for detecting the temperature of water in the reactor cooling water purification system dump pipe 4, and the temperature detector 13 detects the temperature. A signal transmitter 14 that generates a temperature signal based on the water temperature and a temperature controller 15 that controls the cooling temperature of water based on the temperature signal of the signal transmitter 14 are provided.

そして、温度制御器１５から外部水制御弁１２に制御信号が送られ、温度検出器１３の検出温度に基づいて外部水制御弁１２が所定開度に制御され、これにより外部水注入配管２２から注入される外部水ａの流量が制御され、原子炉冷却水浄化系ダンプ配管４から廃液処理タンク５に放出される排水の温度が、温度制御器１５の設定値に基づいて所定温度まで冷却される。   Then, a control signal is sent from the temperature controller 15 to the external water control valve 12, and the external water control valve 12 is controlled to a predetermined opening based on the temperature detected by the temperature detector 13. The flow rate of the external water a to be injected is controlled, and the temperature of the waste water discharged from the reactor cooling water purification system dump pipe 4 to the waste liquid treatment tank 5 is cooled to a predetermined temperature based on the set value of the temperature controller 15. The

このように構成された本実施形態によれば、温度検出器１３により検出される原子炉冷却水浄化系ダンプ配管４を流れる水の温度に対応して外部水ａの注入量を制御することにより、廃液処理タンク５に放出される排水温度を温度設定器１５の設定値に基づく所定温度まで確実に冷却することができる。   According to this embodiment configured as described above, by controlling the injection amount of the external water a corresponding to the temperature of the water flowing through the reactor cooling water purification system dump pipe 4 detected by the temperature detector 13. The waste water temperature discharged to the waste liquid treatment tank 5 can be reliably cooled to a predetermined temperature based on the set value of the temperature setter 15.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を外部水ａの注入量によって自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内への排水温度管理を一層的確かつ容易に行うことができる。   Therefore, according to the present embodiment, the temperature of the water discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy by the injection amount of the external water a. Conventional work such as adjusting the water injection to the waste water is not necessary, and the temperature of the waste water into the waste liquid treatment tank 5 can be managed more accurately and easily.

［第６実施形態（図６）］
図６は、本発明の第６実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図である。 [Sixth Embodiment (FIG. 6)]
FIG. 6 is a system configuration diagram showing a reactor water purification system dump water cooling device according to a sixth embodiment of the present invention.

図６において、原子炉圧力容器１の内部は高温水で満たされており、この原子炉圧力容器１内は、制御棒駆動水ポンプ２を用いた系統からの注水によって昇圧される。原子炉圧力容器１の圧力調整として、原子炉冷却水浄化系配管３から分岐した原子炉冷却水浄化系ダンプ配管４から排水が行われる。この原子炉冷却水浄化系ダンプ配管４から排出された水は、廃液処理タンク５に送られる。   In FIG. 6, the inside of the reactor pressure vessel 1 is filled with high-temperature water, and the pressure inside the reactor pressure vessel 1 is increased by water injection from a system using a control rod drive water pump 2. As pressure adjustment of the reactor pressure vessel 1, drainage is performed from the reactor cooling water purification system dump pipe 4 branched from the reactor cooling water purification system pipe 3. The water discharged from the reactor cooling water purification system dump pipe 4 is sent to the waste liquid treatment tank 5.

このような構成のもとで、原子炉冷却水浄化系ダンプ配管４には、この原子炉冷却水浄化系ダンプ配管４内の高温水を冷却する熱交換手段として、廃液処理タンク５に外部水ａを注入して冷却するタンク内水注入冷却装置２４が設けられている。このタンク内水注入冷却装置２４は、廃液処理タンク５に外部水ａを注入する外部水注入配管２５と、この外部水注入配管２５への注入を制御する外部水注入制御弁２６とを備えた構成とされている。   Under such a configuration, the reactor cooling water purification system dump pipe 4 has external water in the waste liquid treatment tank 5 as heat exchange means for cooling the high-temperature water in the reactor cooling water purification system dump pipe 4. A tank water injection cooling device 24 for injecting and cooling a is provided. The in-tank water injection / cooling device 24 includes an external water injection pipe 25 for injecting external water a into the waste liquid treatment tank 5 and an external water injection control valve 26 for controlling injection into the external water injection pipe 25. It is configured.

一方、外部水注入制御弁２６を制御する冷却温度制御手段として、廃液処理タンク５内の水の温度を検出する温度検出器１３と、この温度検出器１３により検出された水温に基づく温度信号を発する信号発信器１４と、この信号発信器１４の温度信号に基づいて水の冷却温度を制御する温度制御器１５とが備えられている。   On the other hand, as a cooling temperature control means for controlling the external water injection control valve 26, a temperature detector 13 for detecting the temperature of water in the waste liquid treatment tank 5 and a temperature signal based on the water temperature detected by the temperature detector 13 are provided. A signal transmitter 14 that emits light and a temperature controller 15 that controls the cooling temperature of water based on the temperature signal of the signal transmitter 14 are provided.

そして、温度制御器１５から外部水制御弁１２に制御信号が送られ、温度検出器１３の検出温度に基づいて外部水制御弁１２が所定開度に制御され、これにより外部水注入配管２５から注入される外部水ａの流量が制御され、廃液処理タンク５内の排水の温度が、温度制御器１５の設定値に基づいて所定温度まで低下する。   Then, a control signal is sent from the temperature controller 15 to the external water control valve 12, and the external water control valve 12 is controlled to a predetermined opening based on the temperature detected by the temperature detector 13. The flow rate of the external water a to be injected is controlled, and the temperature of the waste water in the waste liquid treatment tank 5 is lowered to a predetermined temperature based on the set value of the temperature controller 15.

このように構成された本実施形態によれば、温度検出器１３により検出される廃液処理タンク５内の水の温度に対応して、外部水注入制御弁２６を調整しながら廃液処理タンク５に外部水ａを注入することにより、廃液処理タンク５内の排水の温度を設定値に基づく所定温度まで確実に低下することができる。   According to this embodiment configured as described above, the waste liquid treatment tank 5 is adjusted while adjusting the external water injection control valve 26 in accordance with the temperature of the water in the waste liquid treatment tank 5 detected by the temperature detector 13. By injecting the external water a, the temperature of the waste water in the waste liquid treatment tank 5 can be reliably lowered to a predetermined temperature based on the set value.

したがって、本実施形態によれば、原子炉冷却水浄化系ダンプ配管４から排出される水温を外部水ａの注入量によって自動的に、かつ高精度で制御することができるため、廃液処理タンク５への注水を調整する等の従来の作業が不要となり、廃液処理タンク５内の排水温度管理を一層的確かつ容易に行うことができる。   Therefore, according to the present embodiment, the temperature of the water discharged from the reactor cooling water purification system dump pipe 4 can be controlled automatically and with high accuracy by the injection amount of the external water a. Conventional work such as adjusting the water injection to the waste water is unnecessary, and the temperature of the waste water in the waste liquid treatment tank 5 can be managed more accurately and easily.

本発明の第１実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。1 is a system configuration diagram showing a nuclear reactor cooling water purification system dump water cooling device according to a first embodiment of the present invention. 本発明の第２実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system block diagram which shows the nuclear reactor cooling water purification system dump water cooling device by 2nd Embodiment of this invention. 本発明の第３実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system block diagram which shows the nuclear reactor cooling water purification system dump water cooling device by 3rd Embodiment of this invention. 本発明の第４実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system block diagram which shows the nuclear reactor cooling water purification system dump water cooling device by 4th Embodiment of this invention. 本発明の第５実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system block diagram which shows the nuclear reactor cooling water purification system dump water cooling device by 5th Embodiment of this invention. 本発明の第６実施形態による原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system block diagram which shows the nuclear reactor cooling water purification system dump water cooling device by 6th Embodiment of this invention. 従来の原子炉冷却水浄化系ダンプ水冷却装置を示す系統構成図。The system | strain block diagram which shows the conventional nuclear reactor cooling water purification system dump water cooling device.

符号の説明Explanation of symbols

１ 原子炉圧力容器
２ 制御棒駆動水ポンプ
３ 原子炉冷却水浄化系配管
４ 原子炉冷却水浄化系ダンプ配管
５ 廃液処理タンク
９ ダンプ水冷却用熱交換器
１０ 冷却温度設定器
１１ 外部水循環配管
１２ 外部水制御弁
１３ 温度検出器
１４ 信号発信器
１５ 温度制御器
１６ バイパス配管
１７ ダンプ配管止め弁
１８ 熱交換器前弁
１９ 熱交換器後弁
２０ 弁制御装置
２１ 水注入冷却装置
２２ 外部水注入配管
２３ 外部水注入制御弁
２４ タンク内水注入冷却装置
２５ 外部水注入配管
２６ 外部水注入制御弁
ａ 外部水 DESCRIPTION OF SYMBOLS 1 Reactor pressure vessel 2 Control rod drive water pump 3 Reactor cooling water purification system piping 4 Reactor cooling water purification system dump piping 5 Waste liquid processing tank 9 Dump water cooling heat exchanger 10 Cooling temperature setting device 11 External water circulation piping 12 External water control valve 13 Temperature detector 14 Signal transmitter 15 Temperature controller 16 Bypass piping 17 Dump piping stop valve 18 Heat exchanger front valve 19 Heat exchanger rear valve 20 Valve control device 21 Water injection cooling device 22 External water injection piping 23 External water injection control valve 24 Water injection cooling device in tank 25 External water injection piping 26 External water injection control valve a External water

Claims (4)

停止状態の原子炉に水を充填して検査を行う際に適用され、前記原子炉内の高温水を、原子炉冷却水浄化系配管に接続された原子炉冷却水浄化系ダンプ配管により廃液処理タンクに導いて冷却する原子炉冷却水浄化系ダンプ水冷却装置において、前記原子炉冷却水浄化系ダンプ配管内の水または前記廃液タンク内の水を冷却する熱交換手段と、この熱交換手段による前記水の冷却温度を制御する冷却温度制御手段とを備えたことを特徴とする原子炉冷却水浄化系ダンプ水冷却装置。 Applied when water reactors are inspected by filling water into a stopped reactor, and the high-temperature water in the reactor is treated as waste liquid by the reactor cooling water purification system dump pipe connected to the reactor cooling water purification system pipe. In the reactor cooling water purification system dump water cooling device that leads to the tank and cools it, the heat exchange means for cooling the water in the reactor cooling water purification system dump pipe or the water in the waste liquid tank, and the heat exchange means A reactor cooling water purification system dump water cooling device comprising cooling temperature control means for controlling the cooling temperature of the water. 前記冷却温度制御手段は、前記原子炉冷却水浄化系ダンプ配管内の水または前記廃液タンク内の水の温度を検出する温度検出器と、この温度検出器により検出された水温に基づく温度信号を発する信号発信器と、この信号発信器の温度信号に基づいて前記水の冷却温度を制御する温度制御器とを備えた請求項１記載の原子炉冷却水浄化系ダンプ水冷却装置。 The cooling temperature control means includes a temperature detector for detecting the temperature of the water in the reactor cooling water purification system dump pipe or the water in the waste liquid tank, and a temperature signal based on the water temperature detected by the temperature detector. The reactor coolant purification system dump water cooling device according to claim 1, further comprising a signal transmitter that emits and a temperature controller that controls a cooling temperature of the water based on a temperature signal of the signal transmitter. 前記熱交換手段は、前記高温水を外部水と熱交換する水冷熱交換器、または前記高温水に外部水を注入する水注入冷却装置とされている請求項１または２記載の原子炉冷却水浄化系ダンプ水冷却装置。 The reactor cooling water according to claim 1 or 2, wherein the heat exchange means is a water-cooled heat exchanger that exchanges heat between the high-temperature water and external water, or a water injection cooling device that injects external water into the high-temperature water. Purification system dump water cooling device. 前記原子炉冷却水浄化系ダンプ配管を迂回して前記原子炉冷却水浄化系配管と前記廃液処理タンクとを接続するバイパス配管を備え、前記原子炉冷却水浄化系ダンプ配管または前記バイパス配管の少なくともいずれか一方に、前記熱交換手段が設けられている請求項１から３までのいずれかに記載の原子炉冷却水浄化系ダンプ水冷却装置。 A bypass pipe that bypasses the reactor cooling water purification system dump pipe and connects the reactor cooling water purification system pipe and the waste liquid treatment tank, and includes at least the reactor cooling water purification system dump pipe or the bypass pipe The nuclear reactor cooling water purification system dump water cooling device according to any one of claims 1 to 3, wherein the heat exchanging means is provided in either one of them.
JP2005033486A 2005-02-09 2005-02-09 Discharge water cooling device for reactor-cooling water purifying system Pending JP2006220510A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109524136A (en) * 2018-11-22 2019-03-26 西南石油大学 A kind of experimental rig and method of high energy pipe fracture whipping behavior
CN112577711A (en) * 2020-11-27 2021-03-30 中国核动力研究设计院 Parallel channel flow instability behavior characteristic test device and method
CN114349086A (en) * 2021-12-14 2022-04-15 张家港中远海运金港化工物流有限公司 Be used for abluent effluent disposal system of tank

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109524136A (en) * 2018-11-22 2019-03-26 西南石油大学 A kind of experimental rig and method of high energy pipe fracture whipping behavior
CN109524136B (en) * 2018-11-22 2022-05-20 西南石油大学 Device and method for testing high-energy tube fracture whipping behavior
CN112577711A (en) * 2020-11-27 2021-03-30 中国核动力研究设计院 Parallel channel flow instability behavior characteristic test device and method
CN114349086A (en) * 2021-12-14 2022-04-15 张家港中远海运金港化工物流有限公司 Be used for abluent effluent disposal system of tank

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