JPS5941558B2 - Containment vessel cooling system - Google Patents
Containment vessel cooling systemInfo
- Publication number
- JPS5941558B2 JPS5941558B2 JP53120063A JP12006378A JPS5941558B2 JP S5941558 B2 JPS5941558 B2 JP S5941558B2 JP 53120063 A JP53120063 A JP 53120063A JP 12006378 A JP12006378 A JP 12006378A JP S5941558 B2 JPS5941558 B2 JP S5941558B2
- Authority
- JP
- Japan
- Prior art keywords
- containment vessel
- pipes
- spectacle
- pipe
- drain
- 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
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
Landscapes
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Description
【発明の詳細な説明】
本発明は、例えば沸騰水型原子炉のような原子炉におけ
る格納容器の冷房装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling device for a containment vessel in a nuclear reactor, such as a boiling water reactor.
従来、この種の原子炉では定期検査が法律によって義務
付けられており、又原子炉における格納容器（ドライウ
ェル）内に収納された各種制御機器は原子炉の運転停止
中に交換したり、補修するようになっている。Conventionally, periodic inspections have been required by law for this type of nuclear reactor, and various control equipment housed in the containment vessel (dry well) of the reactor must be replaced or repaired while the reactor is out of operation. It looks like this.
しかしながら、運転中の上記格納容器は、原子炉機器の
淡水冷却系（海水）による冷却水で空気調和された状態
に保温され、これにより上記格納容器内は加温された状
態で各種の制御機器を保温し、潤滑材の凝固を防止する
ようになっている関係上、定期検査時の作業員が、運転
停止後、保温状態に維持された格納容器内に入って長時
間に亘って保守点検することは、非常に困難であるばか
りでなく、多数の作業者による発汗による汗が格納容器
内に収容された各種機器や配管上に滴下して汚染すると
、これに起因して腐蝕等を生じるおそれがあり、作業環
境や作業の安全性に大きな妨げとなっている。However, during operation, the containment vessel is kept warm and air-conditioned with cooling water from the fresh water cooling system (seawater) for the reactor equipment, and as a result, the inside of the containment vessel is kept warm and various control equipment Because this system is designed to keep the lubricant warm and prevent the lubricant from coagulating, workers during periodic inspections enter the containment vessel, which is kept warm, after the operation has stopped and perform maintenance and inspections over a long period of time. Not only is it extremely difficult to do so, but sweat from the sweat of many workers drips onto the various equipment and pipes housed in the containment vessel and contaminates them, resulting in corrosion, etc. This poses a serious threat to the work environment and work safety.
本発明は、上述した点に鑑み、格納容器内に設けられだ
熱交換器に原子炉機器の冷却水管を上記格納容器を貫通
して配管し、この冷却水管に常用ローカルクーラー水管
を連結管を介して接続し、上記連結管に一対のスペクタ
クルフランジを設け、この各スペクタクルフランンの前
・後に位置する上記連結管に各開閉弁を設け、これによ
り保守点検時、格納容器内の熱交換器（蒸発器）で格納
容器内を冷房するようにしたことを目的とする格納容器
の冷房装置を提供するにある。In view of the above-mentioned points, the present invention provides cooling water pipes for reactor equipment to a heat exchanger provided in the containment vessel, which is piped through the containment vessel, and a regular local cooler water pipe connected to the cooling water pipe. A pair of spectacle flanges are provided on the connecting pipes, and opening/closing valves are provided on the connecting pipes located before and after each spectacle flange. To provide a cooling device for a containment vessel, the purpose of which is to cool the inside of the containment vessel using an evaporator.
以下、本発明を図示の一実施例について説明する。Hereinafter, the present invention will be described with reference to an illustrated embodiment.
図において、符号１は例えは沸騰水型原子炉のような原
子炉における格納容器であって、この格納容器１内には
例えば原子炉再循環系クーラー、Ｅ、Ｄ、放射サンプク
ーラーによる熱交換器２及びローカルクーラーのような
各熱交換器３が設置されており、通常運転時には熱交換
器２が使用され、運転停止時の保守点検時には曲の熱交
換器３が使用されるように、各止弁４ａ＋ ４ｂ、５ａ
＋ ５ｂｔ６ａ、６ｂ及び７ａ、７ｂが設けられている
。In the figure, reference numeral 1 denotes a containment vessel in a nuclear reactor such as a boiling water reactor, and inside this containment vessel 1 there are, for example, a reactor recirculation system cooler, E, D, and a radiant sump cooler for heat exchange. Each heat exchanger 3 such as a heat exchanger 2 and a local cooler is installed, and the heat exchanger 2 is used during normal operation, and the heat exchanger 3 of the tune is used during maintenance and inspection when the operation is stopped. Each stop valve 4a+ 4b, 5a
+5bt6a, 6b and 7a, 7b are provided.
又、上記各熱交換器２，３の主管８ａ、８ｂには原子炉
機器の冷却水管（海水を冷却水とする）９ａ。In addition, the main pipes 8a and 8b of each of the heat exchangers 2 and 3 are cooling water pipes 9a (using seawater as cooling water) for reactor equipment.
９ｂが上記格納容器１を貫通して接続されており、この
冷却水管９ａ、９ｂの管路上には各開閉弁１０ａ、１０
ｂを介して冷却水の供給源に連結されている。9b is connected through the containment vessel 1, and on-off valves 10a, 10 are provided on the pipes of the cooling water pipes 9a, 9b.
b to a cooling water supply source.
一方、上記冷却水管９ａ、９ｂには常用ローカルクーラ
ー水管１１ａ、１１ｂが各連結管１２ａ。On the other hand, the cooling water pipes 9a, 9b are connected to common local cooler water pipes 11a, 11b, each connecting pipe 12a.
１２’ｂを介して連結しており、上記常用ローカルクー
ラー水管１１ａ、１１’ｂには格納容器１の外がわ（原
子炉建屋内）を冷房する各ローカルクーラー１３が並設
されている。12'b, and local coolers 13 for cooling the outside of the containment vessel 1 (inside the reactor building) are arranged in parallel to the regular local cooler water pipes 11a and 11'b.
なお、この各ローカルクーラー１３の管路上には各一対
の開閉弁１４ａ、１４ｂ及び１５ａ、１５ｂか設けられ
ている。In addition, on the pipe line of each local cooler 13, a pair of on-off valves 14a, 14b and 15a, 15b are provided.
能力、上記各連結管１２ａ、１２ｂの中程には−ｎのス
ペクタクルフランジ１６ａ、１６ｂが設けられており、
この各スペクタクルフランン１６ａ、１６ｂの前・後に
位置する上記各連結管１２ａ、１２ｂには各開閉弁１７
ａ、１７ｂ及び１８ａ、１８ｂが設けられている。-n spectacle flanges 16a, 16b are provided in the middle of each of the connecting pipes 12a, 12b,
Each opening/closing valve 17 is provided in each connecting pipe 12a, 12b located before and after each spectacle flan 16a, 16b.
a, 17b and 18a, 18b are provided.
又、上記各スペクタクルフランジ１６ａ、１６ｂと上記
各開閉弁１７ａ、１７ｂ及び１８ａ、１８ｂとの間に位
置する上記各連結管１２ａ、１２ｂには各ドレン管１９
ａ、１９ｂ、２０ａ、２０ｂが各ドレン弁２１ａ、２１
ｂ、２２ａ、２２ｂを介してドレン受２３に連通してい
る。Further, each drain pipe 19 is connected to each of the connecting pipes 12a, 12b located between each of the spectacle flanges 16a, 16b and each of the on-off valves 17a, 17b and 18a, 18b.
a, 19b, 20a, 20b are respective drain valves 21a, 21
It communicates with the drain receiver 23 via b, 22a, and 22b.
さらに、この各ドレン管１９ａ、１９ｂ、２０ａ、２０
ｂ内には、通常運転時、防蝕剤入りの冷水が充填されて
いる。Furthermore, each drain pipe 19a, 19b, 20a, 20
During normal operation, cold water containing anti-corrosion agent is filled in chamber b.
なお上記各ドＬ／７管１９ａ、１９ｂ、２０ａ、２０ｂ
には各リフト弁２４ａ、２４ｂ、２５ａ、２５ｂが附設
されており、この各リフト弁は温度変化等で配管内圧の
上昇時開弁じ得るようになっている。In addition, each of the above-mentioned L/7 pipes 19a, 19b, 20a, 20b
Lift valves 24a, 24b, 25a, and 25b are attached to the piping, and each of the lift valves can be opened when the internal pressure of the pipe increases due to a change in temperature or the like.
従って、通常運転時において、図に示すように、各開閉
弁１７ａ、１７ｂ及び１８ａ、１８ｂを閉弁しておく。Therefore, during normal operation, the on-off valves 17a, 17b and 18a, 18b are kept closed as shown in the figure.
しかして、海水による冷却水は原子炉機器の冷却水管９
ａ、９ｂから主管８ａ、８ｂを通して格納容器１内の各
熱交換器２，３へ圧送されこ＼で熱交換して、上記格納
容器１内を例えば約２５°〜２８℃程度の温度に保持す
る。However, the cooling water from seawater is the cooling water pipe 9 of the reactor equipment.
a, 9b through the main pipes 8a, 8b to each heat exchanger 2, 3 inside the containment vessel 1, where heat is exchanged and the inside of the containment vessel 1 is maintained at a temperature of, for example, about 25° to 28°C. do.
能力、格納容器１の外がわの原子炉建屋内は、常用ロー
カルクーラー水管１１ａ、１１ｂからの冷媒が各ローカ
ルクーラー１３で熱交換して冷房するようになっている
。Inside the reactor building outside the containment vessel 1, the refrigerant from the regular local cooler water pipes 11a and 11b exchanges heat with each local cooler 13 for cooling.
次に、運転を停止して原子炉の定期検査する場合、上記
格納容器１内を冷房状態にする。Next, when the operation is stopped and the reactor is periodically inspected, the inside of the containment vessel 1 is brought into a cooling state.
即ち、上記格納容器１内を冷房するには、予め、各開閉
弁１０ａ、１０ｂ、１４ａ、１４ｂ及び１５ａ、１５ｂ
を開弁しておく。That is, in order to cool the inside of the containment vessel 1, each on-off valve 10a, 10b, 14a, 14b and 15a, 15b must be
Keep the valve open.
次に、各ドレン管１９ａ、１９ｂ、２０ａ、２０ｂ内の
ドレンを抜くだめに、各ドレン弁２１ａ、２１ｂ、２２
ａ。Next, in order to drain the drain from each drain pipe 19a, 19b, 20a, 20b, each drain valve 21a, 21b, 22 is opened.
a.
２２ｂを開弁してドレン受２３にドレンを排棄して後、
再び閉弁する。After opening the valve 22b and discharging the drain into the drain receiver 23,
Close the valve again.
しかして、各スペクタクルフランジ１６ａ、１６ｂを開
口すると共に、各開閉弁１７ａ、１７ｂ、１８ａ、ｉｓ
ｂを開弁することにより、常用ローカルクーラー水管１
１ａ。Thus, each spectacle flange 16a, 16b is opened, and each on-off valve 17a, 17b, 18a, is
By opening valve b, regular local cooler water pipe 1
1a.
１１ｂの冷媒を各連結管１２ａ、１２ｂから、冷却水管
９ａ、９ｂ及び主管８ａ、８ｂを通して熱交換器２，３
に移送し、こ＼で熱交換して格納容器１内を冷房するよ
うになっている。11b is passed from each connecting pipe 12a, 12b to cooling water pipes 9a, 9b and main pipes 8a, 8b to heat exchangers 2, 3.
The inside of the containment vessel 1 is cooled by heat exchange.
このように、通常運転時には各スペクタクルフランジ１
６ａ、１６ｂ等によって連結管１２ａ。In this way, during normal operation, each spectacle flange 1
Connecting pipe 12a by 6a, 16b, etc.
１２ｂを完全に閉鎖しているから、格納容器１内の温度
を一定の温度に保温される。12b is completely closed, the temperature inside the containment vessel 1 is maintained at a constant temperature.
又、保守点検時には、各スペクタクルフランジ１６ａ、
１６ｂ等を開口して連結管１２ａ、１２ｂを開口するか
ら、格納容器１内を有効に冷房することができるように
なっている。Also, during maintenance and inspection, each spectacle flange 16a,
Since the connecting pipes 12a and 12b are opened by opening the connecting pipes 16b and the like, the inside of the containment vessel 1 can be effectively cooled.
以上述べたように本発明によれは、格納容器１内に設け
られた熱交換器２，３に原子炉機器の冷却水管９ａ、９
ｂに常用ローカルクーラー水管１１ａ、Ｉｌｂを連結管
１２ａ、１２ｂを介して接続し、この連結管１２ａ、１
２ｂに一対のスペクタクルフランジ１６ａ、１６ｂを設
け、この各スペクタクルフランジ１６ａ、１６ｂの前後
Ｋ 位置する上記連結管１２ａ、１２ｂに各開閉弁１７
ａ、１７ｂ、１８ａ、１８ｂを設けであるので、保守点
検時、格納容器１内を効果的に冷房できるばかりでなく
、構成が簡素であるから取扱い操作も簡単である等の唆
れた効果を有するものである。As described above, according to the present invention, the cooling water pipes 9a, 9 of the reactor equipment are connected to the heat exchangers 2, 3 provided in the containment vessel 1.
The regular local cooler water pipes 11a and Ilb are connected to b via connecting pipes 12a and 12b, and these connecting pipes 12a and 1
2b is provided with a pair of spectacle flanges 16a, 16b, and respective on-off valves 17 are installed in the connecting pipes 12a, 12b located at the front and rear K of each spectacle flange 16a, 16b.
a, 17b, 18a, and 18b, it is possible not only to effectively cool the inside of the containment vessel 1 during maintenance and inspection, but also to have a simple structure and easy handling. It is something that you have.
図は本発明による格納容器の冷房装置を示す線図である
。
１・・・格納容器、２，３・・・熱交換器、８ａ、８ｂ
・・・主管、９ａ、９ｂ＝−冷却水管、１１ａ、１１ｂ
・・・常用ローカルクーラー水管、１２ａ、１２ｂ・・
・連結管、１３ａ、１３ｂ・・・ローカルクーラー１６
ａ、１６ｂ・・・スペクタクルフランジ、１７ａ。
１７ｂ、１８ａ、ｉａｂ・・・開閉弁。The figure is a diagram showing a cooling device for a containment vessel according to the present invention. 1... Containment vessel, 2, 3... Heat exchanger, 8a, 8b
...Main pipe, 9a, 9b=-cooling water pipe, 11a, 11b
・・・Common local cooler water pipes, 12a, 12b...
・Connecting pipes, 13a, 13b...Local cooler 16
a, 16b...spectacle flange, 17a. 17b, 18a, iab...on/off valves.
Claims (1)
納容器を貫通して原子炉機器の冷却水管を配管し、この
冷却水管に連結管を介して常用ローカルクーラー水管を
接続し、この常用ローカルクーラー水管の連結管に一対
のスペクタクルフランジを設け、この各スペクタクルフ
ランジの前後に位置する上記連結管に各開閉弁を設け、
上記各スペクタクルフランジと上記各開閉弁との間に位
置する上記各連結管に各ドレン弁を備えた各ドレン管を
設け、この各ドレン管の下位にドレン受を配設したこと
を特徴とする格納容器の冷房装置。1. A heat exchanger is installed in the containment vessel, a cooling water pipe for the reactor equipment is installed through the heat exchanger through the above-mentioned containment vessel, and a regular local cooler water pipe is connected to this cooling water pipe via a connecting pipe. A pair of spectacle flanges are provided on the connecting pipes of the regular local cooler water pipes, and respective open/close valves are provided on the connecting pipes located before and after each of the spectacle flanges,
Each of the connecting pipes located between each of the spectacle flanges and each of the on-off valves is provided with a respective drain pipe having a respective drain valve, and a drain receiver is disposed below each of the drain pipes. Containment vessel cooling system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53120063A JPS5941558B2 (en) | 1978-09-29 | 1978-09-29 | Containment vessel cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53120063A JPS5941558B2 (en) | 1978-09-29 | 1978-09-29 | Containment vessel cooling system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5546169A JPS5546169A (en) | 1980-03-31 |
| JPS5941558B2 true JPS5941558B2 (en) | 1984-10-08 |
Family
ID=14776959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53120063A Expired JPS5941558B2 (en) | 1978-09-29 | 1978-09-29 | Containment vessel cooling system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5941558B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6282907A (en) * | 1985-10-03 | 1987-04-16 | 株式会社くろがね工作所 | Tilt angle adjustment device for desk tops, etc. |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5210410B2 (en) * | 1972-09-01 | 1977-03-24 |
-
1978
- 1978-09-29 JP JP53120063A patent/JPS5941558B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5546169A (en) | 1980-03-31 |
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