JP2513476Y2 - Storage of radioactive material - Google Patents
Storage of radioactive materialInfo
- Publication number
- JP2513476Y2 JP2513476Y2 JP1991011922U JP1192291U JP2513476Y2 JP 2513476 Y2 JP2513476 Y2 JP 2513476Y2 JP 1991011922 U JP1991011922 U JP 1991011922U JP 1192291 U JP1192291 U JP 1192291U JP 2513476 Y2 JP2513476 Y2 JP 2513476Y2
- Authority
- JP
- Japan
- Prior art keywords
- storage
- pipe
- cooling water
- water supply
- cooling
- 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 - Fee Related
Links
Description
【0001】[0001]
【産業上の利用分野】本考案は、放射性物質の貯蔵庫に
係り、特に、構造の単純化と冷却性能の向上とを図るも
のである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage of radioactive material, and particularly to simplify the structure and improve cooling performance.
【0002】[0002]
【従来の技術】一般に、原子力発電プラント等で発生す
る高レベル放射性廃棄物は、例えばガラス固化処理する
ことによって、取り扱い性を向上させることができる。
そして、ガラス固化等の処理がなされたいわゆる固化パ
ッケージは、図2に示すような放射性廃棄物の貯蔵庫で
長期間保管される計画である。2. Description of the Related Art Generally, high-level radioactive waste generated in a nuclear power plant or the like can be improved in handleability by subjecting it to vitrification treatment, for example.
The so-called solidified package which has been subjected to glass solidification is planned to be stored in a radioactive waste storage for a long period of time as shown in FIG.
【0003】図2において、符号Pは高レベル放射性廃
棄物をガラス固化する等の処理を施してなる固化パッケ
ージ等の貯蔵用パッケージ、1は貯蔵用パッケージPを
多数収納保管するためのセル室、2はセル室1を囲んで
いる放射線遮蔽壁(コンクリート壁)、3はセル室1の
上方に設けられる搬送室、4はセル室1と搬送室3とを
仕切っているコンクリート壁からなる天井スラブ、5は
天井スラブ4から吊持されて放射性廃棄物を縦積み状態
に複数収納するための鋼管等の収納管(内管)、6はセ
ル室1の中に水平に架設されている支持構造物( 支持架
構 )、7は支持構造物6に支持されかつ収納管5を囲ん
でいる外管、8は外気入口、9は空気出口、10は給気
シャフト、11は排気シャフト、12は収納管5の上部
を密閉する閉塞蓋、13は収納管5と外管7との間に形
成されかつ給気シャフト10及び排気シャフト11に連
通させられる筒状冷却流路である。In FIG. 2, reference symbol P is a storage package such as a solidified package obtained by subjecting high-level radioactive waste to glass-solidifying treatment, etc., 1 is a cell chamber for storing and storing a large number of storage packages P, 2 is a radiation shielding wall (concrete wall) surrounding the cell chamber 1, 3 is a transfer chamber provided above the cell chamber 1, and 4 is a ceiling slab made of a concrete wall separating the cell chamber 1 and the transfer chamber 3. 5 is a storage pipe (inner pipe) such as a steel pipe that is suspended from the ceiling slab 4 to store a plurality of radioactive wastes in a vertically stacked state, and 6 is a support structure that is horizontally installed in the cell chamber 1. Object (support frame), 7 is an outer tube which is supported by the support structure 6 and surrounds the storage tube 5, 8 is an outside air inlet, 9 is an air outlet, 10 is an air supply shaft, 11 is an exhaust shaft, and 12 is a housing. A closure lid for sealing the top of the tube 5, Reference numeral 13 denotes a cylindrical cooling flow path formed between the storage pipe 5 and the outer pipe 7 and communicated with the air supply shaft 10 and the exhaust shaft 11.
【0004】このような構造の貯蔵庫では、放射性物質
の崩壊熱によって、収納管5の温度が高くなると、筒状
冷却流路13の空気が上昇する対流が生じて、図2に矢
印で示すように、外気入口8から取り入れた空気によっ
て冷却が行なわれ、加熱された空気が空気出口9から排
出される。したがって、動力源を必要とせず、崩壊熱が
生じている期間、自然の対流による冷却が行なわれ、停
電等に左右されず高い安全性を有するものとなる。In the storage having such a structure, when the temperature of the storage tube 5 rises due to the decay heat of the radioactive material, convection occurs in which the air in the cylindrical cooling passage 13 rises, as shown by the arrow in FIG. Then, the air taken in from the outside air inlet 8 cools it, and the heated air is discharged from the air outlet 9. Therefore, a power source is not required, cooling is performed by natural convection during decay heat generation, and high safety is ensured regardless of power failure or the like.
【0005】[0005]
【考案が解決しようとする課題】しかし、かかる構造の
貯蔵庫であると、放射性物質の長期間保管中に、不慮の
災害等の外部要因や構成部材の腐食等の内部要因に基づ
いて、筒状冷却流路13への通気量が減少した場合に
は、貯蔵用パッケージPの冷却作用が減少して貯蔵庫の
健全性が損われることになる。However, in the storage of such a structure, during storage of radioactive materials for a long period of time, a cylindrical shape is formed due to external factors such as accidental disasters and internal factors such as corrosion of components. When the amount of ventilation to the cooling flow path 13 decreases, the cooling action of the storage package P decreases and the soundness of the storage is impaired.
【0006】本考案は、かかる事情に鑑みてなされたも
ので、貯蔵用パッケージ収納部分の構造の単純化と冷却
性能の向上とを図るとともに、放射線漏洩を低減するこ
と等を目的としているものである。The present invention has been made in view of the above circumstances, and has as its object the simplification of the structure of the storage package housing portion, the improvement of the cooling performance, and the reduction of radiation leakage. is there.
【0007】[0007]
【課題を解決するための手段】本考案は、放射線遮蔽壁
によって囲まれるセル室内に、放射性を有する貯蔵用パ
ッケージが装填される複数の収納管が上下方向に沿って
配設される技術に加えて、前記収納管にその内部に冷却
水を充満させかつ冷却水の循環を行なう冷却水供給手段
が接続状態に配され、該冷却水供給手段に除熱手段が配
設され、前記冷却水供給手段は、除熱手段に接続されて
除熱された冷却水を収納管の内部に送り込む移送管と、
該移送管の途中に介在状態に配される給水ポンプと、移
送管と収納管の上方内部との間に接続状態に配され個々
の収納管の内部に冷却水を送り込む複数の給水管と、収
納管の内底部と除熱手段とを接続状態とするための回収
管と、複数の給水管に配され個々の収納管への送り込み
水量を調整する複数の制御弁とを有する放射性物質の貯
蔵庫としている。SUMMARY OF THE INVENTION In addition to a technique in which a plurality of storage tubes for storing radioactive storage packages are arranged in a vertical direction in a cell chamber surrounded by a radiation shielding wall, the present invention provides Te, wherein the housing tube is filled with cooling water therein and cooling water supply means for the circulation of cooling water is arranged in the connection state, the heat removal means distribution to the cooling water supply means
The cooling water supply means is connected to the heat removal means.
A transfer pipe that sends the cooling water that has been removed of heat to the inside of the storage pipe,
A water supply pump arranged in the middle of the transfer pipe,
Individually arranged in a connected state between the pipe and the upper inside of the storage pipe.
Multiple water supply pipes that send cooling water into the storage pipe of the
Recovery for connecting the inner bottom of the storage pipe to the heat removal means
Pipes and multiple water supply pipes that feed into individual storage pipes
It serves as a storage of radioactive material having a plurality of control valves for adjusting the amount of water .
【0008】[0008]
【作用】冷却水供給手段の作動によって、冷却水が収納
管に送り込まれて、その内部の貯蔵用パッケージと直接
接触することにより除熱を行なう。高温となった冷却水
は、除熱手段に送り込まれて除熱され、その後、再び収
納管に戻される循環をする。これらの冷却水の循環に際
して、除熱された冷却水は給水ポンプにより複数の給水
管を経由することにより分岐状態で個々の収納管の内部
に送り込まれるが、収納管への冷却水の送り込み水量
は、複数の制御弁により個々の収納管毎に、貯蔵用パッ
ケージの発熱量等に応じて調整されて、貯蔵用パッケー
ジの冷却程度に合わせた設定がなされる。また、冷却水
中に貯蔵用パッケージを埋没させた状態とすることによ
って、放射線漏洩を低減する。By the operation of the cooling water supply means, the cooling water is sent into the storage pipe, and heat is removed by directly contacting the storage package inside the storage pipe. The cooling water, which has reached a high temperature, is sent to the heat removal means to remove the heat, and then circulated to be returned to the storage pipe again. When circulating these cooling water
Then, the cooling water that has been deheated is supplied with multiple water by the water supply pump.
Inside each storage pipe in a branched state by passing through the pipe
The amount of cooling water sent to the storage pipe
Is a storage pack for each storage pipe with multiple control valves.
The storage package is adjusted according to the amount of heat generated by the cage.
The setting is made according to the cooling degree of the gyro. In addition, radiation leakage is reduced by immersing the storage package in the cooling water.
【0009】[0009]
【実施例】以下、本考案に係る放射性物質の貯蔵庫の一
実施例について、図1を参照して説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the radioactive substance storage according to the present invention will be described below with reference to FIG.
【0010】図1においても、従来例で引用した図2と
共通する箇所には、同一符号を付して説明する。In FIG. 1 as well, portions common to those of FIG. 2 cited in the conventional example are designated by the same reference numerals and described.
【0011】該一実施例における貯蔵庫にあっては、図
2で示した外管7、外気入口8、空気出口9、給気シャ
フト10、排気シャフト11、筒状冷却流路13等が省
略されており、これらに代えて、セル室1の上方等の外
部位置に、冷却水供給手段21と除熱手段22とが配設
される。In the storage according to the embodiment, the outer pipe 7, the outside air inlet 8, the air outlet 9, the air supply shaft 10, the exhaust shaft 11, the cylindrical cooling passage 13 and the like shown in FIG. 2 are omitted. Instead of these, the cooling water supply means 21 and the heat removal means 22 are arranged at an external position such as above the cell chamber 1.
【0012】前記冷却水供給手段21は、適宜位置に配
され冷却水を供給するための貯水タンク23と、該貯水
タンク23から冷却水を引き出すための移送管24と、
該移送管24に接続される給水ポンプ25と、該給水ポ
ンプ25と収納管5の上部との間に接続状態に配され収
納管5の内部に冷却水を充満させた状態とするための給
水管26と、収納管5の内底部と除熱手段21とを接続
状態とするための回収管27と、各配管路に配される複
数の制御弁28とを有するものとされる。The cooling water supply means 21 is arranged at an appropriate position and stores a water tank 23 for supplying the cooling water, and a transfer pipe 24 for drawing the cooling water from the water tank 23.
Water supply pump 25 connected to the transfer pipe 24, and water supply for connecting the water supply pump 25 and the upper part of the storage pipe 5 so that the inside of the storage pipe 5 is filled with cooling water. It has a pipe 26, a recovery pipe 27 for connecting the inner bottom portion of the storage pipe 5 and the heat removal means 21 to each other, and a plurality of control valves 28 arranged in each pipe passage.
【0013】前記除熱手段22は、熱交換器構造等で、
セル室1の外部の大気中に配された放熱器29に接続さ
れて除熱されるもの等とされる。The heat removing means 22 has a heat exchanger structure or the like,
It is connected to a radiator 29 arranged in the atmosphere outside the cell chamber 1 to remove heat.
【0014】このような構造の貯蔵庫であると、放射性
物質の崩壊熱によって貯蔵用パッケージPの温度が高く
なると、収納管5に充満されている冷却水が加熱され
る。In the storage having such a structure, when the temperature of the storage package P rises due to the decay heat of the radioactive material, the cooling water filled in the storage pipe 5 is heated.
【0015】貯蔵用パッケージPの収納管5への装填作
業とともに、貯水タンク23に貯留しておいた冷却水
を、移送管24、給水ポンプ25、給水管26を経由さ
せて収納管5に供給して充満状態とする。また、冷却水
中に貯蔵用パッケージPを埋没させた状態とすると、貯
蔵用パッケージPの回りが放射線遮蔽物質である冷却水
に囲まれることによって、収納管5からの放射線漏洩を
低減するものとなる。Along with the loading operation of the storage package P into the storage pipe 5, the cooling water stored in the water storage tank 23 is supplied to the storage pipe 5 via the transfer pipe 24, the water supply pump 25, and the water supply pipe 26. And fill up. Further, when the storage package P is immersed in the cooling water, the storage package P is surrounded by the cooling water which is the radiation shielding substance , so that the radiation leakage from the storage pipe 5 is reduced. .
【0016】冷却水供給手段21における給水ポンプ2
5を作動させることによって、低温状態の冷却水を給水
管26を経由して収納管5に送り込むと、冷却水が貯蔵
用パッケージPに直接接触してその除熱を行ない、高温
化した冷却水が収納管5の下方に導かれて、回収管27
を経由して除熱手段22に送られ、熱交換によって低温
状態の冷却水に戻され、さらに移送管24を経由して給
水ポンプ25に送り込まれる循環が行なわれる。Water supply pump 2 in the cooling water supply means 21
When the cooling water in the low temperature state is sent to the storage pipe 5 via the water supply pipe 26 by operating 5, the cooling water comes into direct contact with the storage package P to remove the heat, and the temperature of the cooling water becomes high. Is guided below the storage pipe 5, and the recovery pipe 27
The cooling water is sent to the heat removal means 22 via the heat exchanger 22, is returned to the cooling water in a low temperature state by heat exchange, and is further sent to the water supply pump 25 via the transfer pipe 24 for circulation.
【0017】この冷却水の循環においては、制御弁28
によって各収納管5への水量を調整して平均化を行な
う。In the circulation of the cooling water, the control valve 28
The amount of water to each storage pipe 5 is adjusted by averaging.
【0018】除熱手段22においては、放熱器29との
熱交換によって除熱が行なわれる。In the heat removing means 22, heat is removed by exchanging heat with the radiator 29.
【0019】なお、ここまで説明した一実施例にあって
は、貯蔵用パッケージPがガラス固化等の処理がなされ
たいわゆる固化パッケージであるとしたが、これに限定
されるものではなく、一般の放射性廃棄物をパッケージ
処理したものや、使用済燃料をパッケージ処理したもの
を包含するものである。In the embodiment described so far, the storage package P is a so-called solidified package that has been subjected to a treatment such as vitrification. However, the storage package P is not limited to this and is generally used. It includes packages of radioactive waste and packages of spent fuel.
【0020】また、図1における除熱手段22、貯水タ
ンク23、給水ポンプ25、給水管26及び回収管27
等の設置位置や接続状態は、図示例に限定するものでは
なく、任意に設定することができる。Further, the heat removal means 22, the water storage tank 23, the water supply pump 25, the water supply pipe 26 and the recovery pipe 27 in FIG.
The installation positions and connection states of the above are not limited to the illustrated examples, and can be set arbitrarily.
【0021】[0021]
【考案の効果】本考案に係る放射性物質の貯蔵庫によれ
ば、セル室内に配設される収納管の内部に冷却水を充満
させかつ冷却水の循環を行なう冷却水供給手段と除熱手
段とが配設されるものとしているから、以下のような効
果を奏する。 (1)冷却水供給手段の作動により冷却水が収納管に送
り込まれて、その内部の貯蔵用パッケージと直接接触す
ることにより除熱を行なうために、貯蔵用パッケージの
除熱効率を向上させることができる。 (2)冷却水中に貯蔵用パッケージを埋没させた状態と
することによって、放射線遮蔽物質である冷却水の介在
に基づいて放射線漏洩低減を図ることができる。 (3)収納管の内部の冷却水の粘性に基づいて貯蔵用パ
ッケージの急速移動を抑制する耐震効果が生じ、耐震構
造等の単純化を図ることができる。(4) 個々の収納管毎の冷却水量を、制御弁で調整す
ることにより、貯蔵用パッケージの発熱量に応じた冷却
程度の管理を行ない、貯蔵時の健全性を確保することが
できる。 According to the radioactive substance storage of the present invention, a cooling water supply means and a heat removal means for filling the inside of the storage pipe arranged in the cell chamber with cooling water and circulating the cooling water. Is provided, the following effects can be obtained. (1) Since the cooling water is sent to the storage pipe by the operation of the cooling water supply means and the heat is removed by directly contacting the storage package inside the storage pipe, the heat removal efficiency of the storage package can be improved. it can. (2) Interposition of cooling water, which is a radiation shielding substance, by placing the storage package in the cooling water.
Radiation leakage can be reduced based on the above. (3) Based on the viscosity of the cooling water inside the storage pipe, a seismic resistance effect that suppresses rapid movement of the storage package occurs, and simplification of the seismic structure can be achieved. (4) Adjust the amount of cooling water for each storage pipe with the control valve.
Cooling according to the amount of heat generated by the storage package
It is possible to manage the degree to ensure the soundness during storage.
it can.
【図1】本考案に係る放射性物質の貯蔵庫の一実施例を
示す正断面図である。FIG. 1 is a front sectional view showing an embodiment of a radioactive substance storage according to the present invention.
【図2】放射性廃棄物の貯蔵庫の従来例を示す正断面図
である。FIG. 2 is a front sectional view showing a conventional example of a radioactive waste storage.
P 貯蔵用パッケージ 1 セル室 2 放射線遮蔽壁(コンクリート壁) 3 搬送室 4 天井スラブ 5 収納管(内管) 6 支持構造物( 支持架構 ) 12 閉塞蓋 21 冷却水供給手段 22 除熱手段(熱交換器) 23 貯水タンク 24 移送管 25 給水ポンプ 26 給水管 27 回収管 28 制御弁 29 放熱器 P Storage package 1 Cell room 2 Radiation shielding wall (concrete wall) 3 Transfer room 4 Ceiling slab 5 Storage pipe (inner pipe) 6 Support structure (support frame) 12 Closing lid 21 Cooling water supply means 22 Heat removal means (heat) Exchanger) 23 Water tank 24 Transfer pipe 25 Water supply pump 26 Water supply pipe 27 Recovery pipe 28 Control valve 29 Radiator
Claims (1)
ル室(1)内に、放射性を有する貯蔵用パッケージ
(P)が装填される複数の収納管(5)が上下方向に沿
って配設される放射性物質の貯蔵庫であって、前記収納
管にその内部に冷却水を充満させかつ冷却水の循環を行
なう冷却水供給手段(21)が接続状態に配され、該冷
却水供給手段に除熱手段(22)が配設され、前記冷却
水供給手段は、除熱手段に接続されて除熱された冷却水
を収納管の内部に送り込む移送管(24)と、該移送管
の途中に介在状態に配される給水ポンプ(25)と、移
送管と収納管の上方内部との間に接続状態に配され個々
の収納管の内部に冷却水を送り込む複数の給水管(2
6)と、収納管の内底部と除熱手段とを接続状態とする
ための回収管(27)と、複数の給水管に配され個々の
収納管への送り込み水量を調整する複数の制御弁(2
8)とを有することを特徴とする放射性物質の貯蔵庫。1. A plurality of storage tubes (5) in which a storage package (P) having a radioactive property is loaded are arranged along a vertical direction in a cell chamber (1) surrounded by a radiation shielding wall (2). In the storage of the radioactive substance, cooling water supply means (21) for filling the inside of the storage pipe with cooling water and circulating the cooling water is arranged in a connected state, and is connected to the cooling water supply means. thermal means (22) is arranged, said cooling
The water supply means is connected to the heat removal means to remove the heat of the cooling water.
Pipe (24) for feeding the inside of the storage pipe, and the transfer pipe
The water supply pump (25) placed in the middle of the
Individually arranged in a connected state between the pipe and the upper inside of the storage pipe.
Plural water pipes (2
6) and the inner bottom of the storage tube and the heat removal means are connected.
For collecting water (27) and multiple water supply pipes
Multiple control valves (2 to adjust the amount of water sent to the storage pipe)
8) The storage of radioactive material characterized by having .
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991011922U JP2513476Y2 (en) | 1991-03-06 | 1991-03-06 | Storage of radioactive material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1991011922U JP2513476Y2 (en) | 1991-03-06 | 1991-03-06 | Storage of radioactive material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0515000U JPH0515000U (en) | 1993-02-26 |
JP2513476Y2 true JP2513476Y2 (en) | 1996-10-09 |
Family
ID=11791183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1991011922U Expired - Fee Related JP2513476Y2 (en) | 1991-03-06 | 1991-03-06 | Storage of radioactive material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2513476Y2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58187900A (en) * | 1982-04-27 | 1983-11-02 | 石川島播磨重工業株式会社 | Method of storing solidified body of high level radioactive liquid waste |
JPS5977397A (en) * | 1982-10-26 | 1984-05-02 | 石川島播磨重工業株式会社 | Cooling and storing device for package of solidified radioactive liquid waste |
-
1991
- 1991-03-06 JP JP1991011922U patent/JP2513476Y2/en not_active Expired - Fee Related
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JPH0515000U (en) | 1993-02-26 |
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