JPH0363720B2 - - Google Patents
Info
- Publication number
- JPH0363720B2 JPH0363720B2 JP58175743A JP17574383A JPH0363720B2 JP H0363720 B2 JPH0363720 B2 JP H0363720B2 JP 58175743 A JP58175743 A JP 58175743A JP 17574383 A JP17574383 A JP 17574383A JP H0363720 B2 JPH0363720 B2 JP H0363720B2
- Authority
- JP
- Japan
- Prior art keywords
- valve
- load
- emergency
- instrument air
- shutoff valve
- 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
- 239000000498 cooling water Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000007789 gas Substances 0.000 description 5
- 230000007257 malfunction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
Landscapes
- Separation By Low-Temperature Treatments (AREA)
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は、原子力発電所においてデイーゼル発
電設備、余熱除去熱交換器などの非常用系負荷や
原子炉再循環ポンプ、MGセツトなどの常用系負
荷、計器用空気圧縮機などの計器用空気系負荷を
冷却する原子炉補機冷却設備に係り、特に常用系
負荷および計器用空気系の管路に設けられた緊急
遮断弁を開かせる手段を備えている原子炉補機冷
却設備に関する。[Detailed Description of the Invention] [Technical Field of the Invention] The present invention applies to emergency system loads such as diesel power generation equipment and residual heat removal heat exchangers, and regular system loads such as reactor recirculation pumps and MG sets in nuclear power plants. , relates to reactor auxiliary equipment cooling equipment that cools instrument air system loads such as instrument air compressors, and is particularly equipped with means for opening emergency shutoff valves installed in the regular system loads and instrument air system pipes. Concerning reactor auxiliary cooling equipment.
まず、従来の原子炉補機冷却設備を第１図によ
り説明する。
First, a conventional nuclear reactor auxiliary cooling equipment will be explained with reference to FIG.
冷却水供給管路１および戻り管路２間には熱交
換器３が介装された管路４が接続されており、こ
の熱交換器８において冷却水が海水との熱交換に
より冷却されるようになつている。また、前記供
給管路１にはポンプ５が介装されており、冷却水
を循環せしめるようになつている。 A pipe 4 in which a heat exchanger 3 is interposed is connected between the cooling water supply pipe 1 and the return pipe 2, and the cooling water is cooled by heat exchange with seawater in the heat exchanger 8. It's becoming like that. Further, a pump 5 is interposed in the supply pipe line 1 to circulate cooling water.
前記供給管路１および戻り管路２間には一対の
管路６および７が並列に接続されており、管路６
には、デイーゼル発電設備、余熱除去熱交換器な
どの非常用系負荷８が介装されている。また、他
の管路７には、計器用空気圧縮機のような計器用
空気系負荷を含む常用系負荷９が介装されてお
り、この常用系負荷９の下流側管路７Ｂには逆止
弁１１が介装されている。一方、常用系負荷９の
上流側管路７Ａには通常時開、非常時閉の緊急遮
断弁１０が介装されており、この緊急遮断弁１０
が閉じると、この緊急遮断弁１０および前記逆止
弁１１により計器用空気系負荷を含む常用系負荷
９が隔離され得るようになつている。この緊急遮
断弁１０としては、短かい時間で弁閉操作が行な
え、しかも大口径管に適用できるようにするため
空気作動弁が用いられる。空気作動弁によれば、
約５秒で弁閉操作を行なえ、しかも管路７の約
300Aという口径にも適用できる。このように緊
急遮断弁１０を空気作動弁とした関係上、この緊
急遮断弁１０には、空気供給管路１２を介して計
器用空気系１３が接続されている。 A pair of pipes 6 and 7 are connected in parallel between the supply pipe 1 and the return pipe 2, and the pipe 6
An emergency system load 8 such as a diesel power generation facility and a residual heat removal heat exchanger is installed in the system. In addition, a regular system load 9 including an instrument air system load such as an instrument air compressor is interposed in another pipe line 7, and a downstream pipe line 7B of this regular system load 9 has an opposite A stop valve 11 is interposed. On the other hand, an emergency shutoff valve 10 that is normally open and closed in an emergency is installed in the upstream pipe line 7A of the regular system load 9.
When the valve is closed, the emergency shutoff valve 10 and the check valve 11 can isolate the normal system load 9 including the instrument air system load. As the emergency shutoff valve 10, an air-operated valve is used so that the valve can be closed in a short time and can be applied to large diameter pipes. According to the air operated valve,
The valve can be closed in about 5 seconds, and the valve can be closed in about 5 seconds.
It can also be applied to a caliber of 300A. Since the emergency shutoff valve 10 is thus an air-operated valve, the instrument air system 13 is connected to the emergency shutoff valve 10 via the air supply pipe 12.
前述した常用系負荷９を隔離する条件は、冷却
材喪失事故が発生するか、あるいは地震により計
器用空気系負荷を含む常用系負荷９の機器、配管
などから冷却水の漏洩が生じた場合である。これ
は、計器用空気系負荷を含む常用系負荷９の耐震
性が非常用系負荷８や熱交換器３、ポンプ５など
と比較して低いため、この部分のみの管路７の破
断による冷却水の漏洩が考えられるからである。 The above-mentioned conditions for isolating the regular system load 9 are when a loss of coolant accident occurs, or when cooling water leaks from the equipment, piping, etc. of the regular system load 9, including the instrument air system load, due to an earthquake. be. This is because the seismic resistance of the regular system load 9, including the instrument air system load, is lower than that of the emergency system load 8, heat exchanger 3, pump 5, etc. This is because there is a possibility of water leakage.
前述した構成によれば、地震など何らかの理由
で緊急遮断弁１０が閉じると、計器用空気系負荷
を含む常用系負荷９へ冷却水が供給されなくな
り、他方、管路６の非常用系負荷８にのみ冷却水
が供給される。 According to the above-described configuration, when the emergency shutoff valve 10 closes for some reason such as an earthquake, cooling water is no longer supplied to the regular system load 9 including the instrument air system load, and on the other hand, the emergency system load 8 of the pipe line 6 Cooling water is supplied only to
ところで、計器用空気系負荷を含む常用系負荷
９への冷却水の供給が止まると、この負荷９の中
にはその機能が喪失されるだけでなく、温度上昇
などに伴ない破損しやすくなる機器もある。した
がつて、誤作動により緊急遮断弁１０が閉じた場
合、全く健全な機器なども使用不能にしてしまう
おそれがある。 By the way, when the supply of cooling water to the regular system loads 9, including the instrument air system loads, is stopped, some of the loads 9 not only lose their functions, but also become susceptible to damage due to temperature rises, etc. There is also equipment. Therefore, if the emergency shutoff valve 10 closes due to malfunction, there is a risk that even perfectly healthy equipment may become unusable.
しかしながら、前記緊急遮断弁１０は前述した
ように計器用空気を駆動源とする空気作動弁であ
り、この計器用空気は常用系負荷９内の計器用空
気系負荷から供給されるため、緊急遮断弁１０は
閉じることにより自らの駆動源を失い、開くこと
ができなくなつてしまう。すると、計器用空気系
負荷を含む常用系負荷の機能回復を行なえなくな
つてしまう。 However, as described above, the emergency shutoff valve 10 is an air-operated valve that uses instrument air as a driving source, and since this instrument air is supplied from the instrument air system load in the regular system load 9, the emergency shutoff valve 10 is When the valve 10 closes, it loses its own driving source and becomes unable to open. Then, it becomes impossible to restore the functions of the regular system loads including the instrument air system loads.
本発明は、前述した点に鑑み、閉じた緊急遮断
弁を簡単に開き得るようにした原子炉補機冷却設
備を提供することを目的とする。
In view of the above-mentioned points, an object of the present invention is to provide a nuclear reactor auxiliary equipment cooling facility that allows a closed emergency shutoff valve to be easily opened.
前述した目的は、本願の特許請求の範囲第１番
目に記載の発明によれば、緊急遮断弁をバイパス
するバイパス管路を常用系負荷上流側管路に設
け、このバイパス管路に電動弁を介装し、前記緊
急遮断弁の閉鎖後にバイパス管路から常用系負荷
に冷却水を供給して緊急遮断弁を開くようにした
ことにより達成される。
According to the invention described in the first claim of the present application, the above-mentioned object is achieved by providing a bypass line for bypassing the emergency shutoff valve in the line on the upstream side of the load in the regular system, and installing an electric valve in this bypass line. This is achieved by opening the emergency shutoff valve by supplying cooling water from the bypass pipe to the regular system load after the emergency shutoff valve is closed.
また、前述した目的は、本願の特許請求の範囲
第２番目に記載の発明によれば、高圧ガスを封入
したボンベが仕切弁を介して設けられている管路
を前記計器用空気系からの導管に接続し、前記緊
急遮断弁の閉鎖後に前記ボンベの高圧ガスを緊急
遮断弁に供給し、この緊急遮断弁を開くようにし
たことにより達成される。 According to the second claim of the present application, the above-mentioned object is achieved by connecting a pipe line in which a cylinder filled with high-pressure gas is provided via a gate valve from the instrument air system. This is achieved by connecting the emergency shutoff valve to a conduit and supplying the high pressure gas in the cylinder to the emergency shutoff valve to open the emergency shutoff valve after the emergency shutoff valve is closed.
以下、本発明を図面に示す実施例により説明す
る。なお、前述した従来のものと同一の構成につ
いては、図面中に同一の符号を付し、その説明は
省略する。
The present invention will be explained below with reference to embodiments shown in the drawings. Note that the same components as those of the conventional device described above are denoted by the same reference numerals in the drawings, and the explanation thereof will be omitted.
第２図は本願の特許請求の範囲第１番目に記載
の発明に対応する実施例を示すものであり、計器
用空気系負荷を含む常用系負荷９の介装されてい
る管路７には、この負荷９の上流側の緊急遮断弁
１０をバイパスするバイパス管路１４が設けられ
ている。そして、このバイパス管路１４には常閉
の電動弁１５が介装されている。 FIG. 2 shows an embodiment corresponding to the invention described in the first claim of the present application, in which a pipe line 7 in which a regular system load 9 including an instrument air system load is interposed is A bypass line 14 is provided to bypass the emergency shutoff valve 10 on the upstream side of the load 9. A normally closed motor-operated valve 15 is interposed in this bypass conduit 14.
このような構成によれば、緊急遮断弁１０を閉
とした後に何らかの事情で計器用空気系負荷を含
む常用系負荷９の隔離を解除したい場合には、前
記バイパス管路１４の電動弁１５を遠隔操作によ
り開いてやる。すると、このバイパス管路１４を
介して計器用空気系負荷を含む常用系負荷９に冷
却水が供給され、これらの負荷９の機能が回復す
る。したがつて、誤作動により緊急遮断弁１０が
閉じたとしても負荷９は安全に保護される。ま
た、常用系負荷９には前述したように計器用空気
系負荷が設けられているので、空気作動弁である
緊急遮断弁１０を開動作することも可能になる。 According to such a configuration, if for some reason it is desired to release the isolation of the regular system load 9 including the instrument air system load after the emergency shutoff valve 10 is closed, the electric valve 15 of the bypass pipe 14 is operated. It will be opened by remote control. Then, cooling water is supplied to the regular system loads 9 including the instrument air system loads through this bypass pipe line 14, and the functions of these loads 9 are restored. Therefore, even if the emergency shutoff valve 10 closes due to malfunction, the load 9 is safely protected. Further, since the regular system load 9 includes the instrument air system load as described above, it is also possible to open the emergency shutoff valve 10, which is an air-operated valve.
第３図は本願の特許請求の範囲第２番目に記載
の発明に対応する実施例を示すものであり、緊急
遮断弁１０に計器用空気系１３からの空気を供給
する空気供給管路１２には、圧縮空気あるいは高
圧窒素ガスといつた高圧ガスを封入したボンベ１
６と連通する導管１７が接続されており、この導
管１７には仕切弁１８が介装されている。 FIG. 3 shows an embodiment corresponding to the invention described in the second claim of the present application, in which an air supply pipe 12 for supplying air from an instrument air system 13 to an emergency shutoff valve 10 is shown. is a cylinder filled with high-pressure gas such as compressed air or high-pressure nitrogen gas.
A conduit 17 communicating with 6 is connected, and a gate valve 18 is interposed in this conduit 17.
このような構成によれば、閉とされた緊急遮断
弁１０を開くには、導管１７の仕切弁１８を遠隔
操作により開き、ボンベ１６の高圧ガスを空気作
動弁たる緊急遮断弁１０に供給してやればよい。 According to such a configuration, in order to open the closed emergency shutoff valve 10, the gate valve 18 of the conduit 17 is opened by remote control, and the high pressure gas in the cylinder 16 is supplied to the emergency shutoff valve 10, which is an air-operated valve. Bye.
したがつて、本実施例においても前述した第１
実施例と同様、緊急遮断弁１０の誤作動による負
荷９における機器の損傷を防止することができ
る。 Therefore, in this embodiment as well, the above-mentioned first
As in the embodiment, damage to equipment under load 9 due to malfunction of emergency shutoff valve 10 can be prevented.
以上説明したように、本発明に係る原子炉補機
冷却設備は、バイパス管路を介して計器用空気系
負荷を含む常用系負荷に冷却水を供給するか、あ
るいはボンベの高圧ガスにより緊急遮断弁を開動
作するようにしたので、緊急遮断弁を必要に応じ
て簡単に開くことができ、計器用空気系負荷を含
む常用系負荷における機器の機能を回復すること
ができる。
As explained above, the reactor auxiliary equipment cooling equipment according to the present invention supplies cooling water to the regular system loads including the instrument air system loads via the bypass pipe, or makes an emergency shutdown using the high pressure gas in the cylinder. Since the valve is configured to open, the emergency shutoff valve can be easily opened as needed, and the function of the equipment can be restored under normal system loads including instrument air system loads.
第１図は従来の原子炉補機冷却設備を示す回路
図、第２図および第３図はそれぞれ本発明に係る
原子炉補機冷却設備の実施例を示す回路図であ
る。
１……供給管路、２……戻り管路、３……熱交
換器、５……ポンプ、８……非常用系負荷、９…
…計器用空気系を含む常用系負荷、１０……緊急
遮断弁（空気作動弁）、１１……逆止弁、１３…
…計器用空気系、１４……バイパス管路、１５…
…電動弁、１６……ボンベ、１８……仕切弁。
FIG. 1 is a circuit diagram showing a conventional reactor auxiliary cooling equipment, and FIGS. 2 and 3 are circuit diagrams showing embodiments of the nuclear reactor auxiliary cooling equipment according to the present invention. 1... Supply pipe line, 2... Return pipe line, 3... Heat exchanger, 5... Pump, 8... Emergency system load, 9...
... Regular system load including instrument air system, 10 ... Emergency shutoff valve (air operated valve), 11 ... Check valve, 13 ...
...Instrument air system, 14...Bypass pipe line, 15...
...Electric valve, 16...Cylinder, 18...Gate valve.
Claims (1)
管路に計器用空気系から導管を介して供給される
空気により駆動される緊急遮断弁を介装するとと
もに前記負荷の下流側管路に逆止弁を介装し、前
記負荷に冷却水を供給して負荷を冷却するように
した原子炉補機冷却設備において、前記緊急遮断
弁をバイパスするバイパス管路を前記上流側管路
に設け、このバイパス管路に電動弁を介装し、前
記緊急遮断弁の閉鎖後にバイパス管路から前記負
荷に冷却水を供給して緊急遮断弁を開くようにし
たことを特徴とする原子炉補機冷却設備。 ２ 計器用空気系負荷を含む常用系負荷の上流側
管路に計器用空気系から導管を介して供給される
空気により駆動される緊急遮断弁を介装するとと
もに前記負荷の下流側管路に逆止弁を介装し、前
記負荷に冷却水を供給して負荷を冷却するように
した原子炉補機冷却設備において、高圧ガスを封
入したボンベが仕切弁を介して設けられている管
路を前記計器用空気系からの導管に接続し、前記
緊急遮断弁の閉鎖後に前記ボンベの高圧ガスを緊
急遮断弁に供給し、この緊急遮断弁を開くように
したことを特徴とする原子炉補機冷却設備。[Scope of Claims] 1. An emergency shutoff valve driven by air supplied from the instrument air system through a conduit is interposed in the upstream pipe line of the regular system load including the instrument air system load, and the load In the reactor auxiliary equipment cooling equipment in which a check valve is interposed in the downstream pipe line of the reactor to cool the load by supplying cooling water to the load, the bypass pipe bypassing the emergency shutoff valve is connected to the A motor-operated valve is provided in the upstream pipe, and the bypass pipe is interposed with an electric valve, and after the emergency cutoff valve is closed, cooling water is supplied from the bypass pipe to the load to open the emergency cutoff valve. Reactor auxiliary cooling equipment. 2 An emergency shutoff valve driven by air supplied from the instrument air system via a conduit is installed in the upstream pipe line of the regular system load including the instrument air system load, and an emergency shutoff valve is installed in the downstream pipe line of the load. In nuclear reactor auxiliary equipment cooling equipment equipped with a check valve to supply cooling water to the load to cool the load, a pipe line in which a cylinder filled with high-pressure gas is installed via a gate valve. is connected to the conduit from the instrument air system, and after the emergency shut-off valve is closed, the high-pressure gas in the cylinder is supplied to the emergency shut-off valve, and the emergency shut-off valve is opened. Machine cooling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58175743A JPS6067892A (en) | 1983-09-22 | 1983-09-22 | Reactor auxiliary machinery cooling facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58175743A JPS6067892A (en) | 1983-09-22 | 1983-09-22 | Reactor auxiliary machinery cooling facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6067892A JPS6067892A (en) | 1985-04-18 |
| JPH0363720B2 true JPH0363720B2 (en) | 1991-10-02 |
Family
ID=16001468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58175743A Granted JPS6067892A (en) | 1983-09-22 | 1983-09-22 | Reactor auxiliary machinery cooling facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6067892A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6396689A (en) * | 1986-10-13 | 1988-04-27 | Toppan Printing Co Ltd | Production of hologram transfer foil |
| JPS63106779A (en) * | 1986-10-24 | 1988-05-11 | Toppan Printing Co Ltd | Production of hologram transfer foil |
-
1983
- 1983-09-22 JP JP58175743A patent/JPS6067892A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6067892A (en) | 1985-04-18 |
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