JPS61158570A - Facility for storing highly radioactive substance - Google Patents
Facility for storing highly radioactive substanceInfo
- Publication number
- JPS61158570A JPS61158570A JP59279950A JP27995084A JPS61158570A JP S61158570 A JPS61158570 A JP S61158570A JP 59279950 A JP59279950 A JP 59279950A JP 27995084 A JP27995084 A JP 27995084A JP S61158570 A JPS61158570 A JP S61158570A
- Authority
- JP
- Japan
- Prior art keywords
- building
- silo
- cask
- facility
- silos
- 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.)
- Granted
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
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の目的〕
ｌ 産業上の利用分野
本発明は、原子力発電所から発生する使用済燃料やその
燃料を再処理した結果発生する高レベル放射性廃棄物等
を保管する高レベル放射性物質貯蔵施設に関する。[Detailed Description of the Invention] [Object of the Invention] l Industrial Application Field The present invention is used to store spent fuel generated from nuclear power plants and high-level radioactive waste generated as a result of reprocessing that fuel. Concerning high-level radioactive material storage facilities.
上記使用済燃料、高レベル放射性廃棄物等は、かなりの
放射能を有するため、プールでの水中保管やキャスク（
遮蔽密封容器）に入れて保管されるが、本発明は、特に
後者に属する。The above-mentioned spent fuel, high-level radioactive waste, etc. have considerable radioactivity, so they are stored underwater in pools or in casks (
The present invention particularly belongs to the latter category.
Ｕ 従来の技術
キャスクは、鋼製の大型容器であり、通常、外径１．５
〜２．５ ｆｌＬ％高さ５〜６密、重さ９０〜１３０ｔ
ｏｎ程度のものであって、５〜１０ ｔｏｎの使用済燃
料等を収容する。収容された使用済燃料等は、２０〜５
０ ＫＷ程度の崩壊熱を発生させ、その熱と放射線の一
部がキャスクの外部に現れる。従って、キヤ塁りの保管
施設には、キャスクの冷却と放射線遮蔽が不可欠である
。U Conventional technology A cask is a large container made of steel, usually with an outer diameter of 1.5
~2.5 flL% height 5-6 density, weight 90-130t
It is approximately on the order of 300 meters and can accommodate 5 to 10 tons of spent fuel, etc. The stored spent fuel, etc. is 20 to 5
Decay heat of approximately 0 KW is generated, and a portion of that heat and radiation appears outside the cask. Therefore, cask cooling and radiation shielding are essential for cask storage facilities.
ところで、従来のキャスクの保管施設には、大型の天井
クレーンを備えたコンクリート建屋が用いられ、キャス
クは、床上に起立または横置き状態で配列され、建屋換
気による強制空冷方式（排気または給気７アン）で冷却
されるようになっている。By the way, conventional cask storage facilities use concrete buildings equipped with large overhead cranes, and the casks are arranged either upright or horizontally on the floor, and are forced air-cooled by building ventilation (exhaust or air supply 7). It is designed to be cooled by the
１１１ 発明が解決しようとする問題点しかし、従来
のキャスクの保管施設の場合、キャスクからの放射線に
対して建屋構造体の一部である貯蔵室周壁または外壁を
厚いコンクリート壁として放射線遮蔽性能をもたせる必
要があり、貯蔵室内に大型天井クレーンを要し、且つ、
多大な空間を要し、施設耐震上に問題があった。また、
これに加えて、建屋換気による強制空冷方式のため、放
射線遮蔽のための複雑な迷路形式をとる必要があり、施
設建設費の経済性や建設工期上に難があった。111 Problems to be Solved by the Invention However, in the case of conventional cask storage facilities, the surrounding walls or outer walls of the storage room, which are part of the building structure, are made of thick concrete walls to provide radiation shielding performance against radiation from the casks. It requires a large overhead crane inside the storage room, and
It required a large amount of space, and there were problems with the earthquake resistance of the facility. Also,
In addition, due to the forced air cooling system using ventilation in the building, it was necessary to create a complex labyrinth structure for radiation shielding, which caused problems in terms of economical construction costs and construction schedule.
本発明は、斯る従来の問題点、難点を除去しようとする
ものである。The present invention attempts to eliminate these conventional problems and difficulties.
１ 問題点を解決するための手段
本発明は、コンクリート建屋内で、基礎床上に、キャス
クを遊挿させる放射線遮蔽性能を備えた適宜形状のサイ
ロを適宜数設け、該サイロに冷却空気流通手段を講じ、
また、建屋内に所要の門型クレーンを装備して成る。1 Means for Solving the Problems The present invention provides an appropriate number of silos of an appropriate shape with radiation shielding performance in which casks are loosely inserted on the foundation floor in a concrete building, and the silos are provided with cooling air circulation means. lecture,
The building is also equipped with the necessary gate-type crane.
１ 実施例 図面は、本発明に係る実施例を示している。1 Example The drawings show embodiments according to the invention.
図において、１は、コンクリート建屋、２・・・は、該
建屋の基礎床上に配列した放射線遮蔽性能を備えた複数
のサイロ０．３は、建屋内に設けた門型クレーン、４は
、キャスク運搬車であり、Ａ・・・は、キャスクである
。In the figure, 1 is a concrete building, 2... is a plurality of silos with radiation shielding performance arranged on the foundation floor of the building, 0.3 is a portal crane installed in the building, 4 is a cask It is a transport vehicle, and A... is a cask.
コンクリート建屋１は、地面を少し堀り下げて格子状地
中梁１１を設け（第６図）、該地中梁の間に梁元端レベ
ルよりも低く厚い床版１２を設け、また、中央部に縦貫
させて通路用の上部床１３を設けると共に、これに対応
させて外壁１４に出入口１８を設け、外壁１４の下部適
所に適数の空気取入口１５・・・を配し、屋根１６の中
央部に迷路形式の簡単な排気口１７を設けている。なお
、排気口部分は、放射線遮蔽のため厚くするとよい。ま
た、該部に排気モニターを装備させるとよい。In the concrete building 1, the ground is dug down a little and lattice-shaped underground beams 11 are installed (Fig. 6), and between the underground beams, thick floor slabs 12 are installed lower than the base end level of the beams. An upper floor 13 for passage is provided vertically, an entrance/exit 18 is provided in the outer wall 14 correspondingly, an appropriate number of air intake ports 15 are arranged at appropriate locations in the lower part of the outer wall 14, and an upper floor 13 is provided in the center of the roof 16. A simple labyrinth-shaped exhaust port 17 is provided in the section. Note that the exhaust port portion is preferably thick for radiation shielding. Additionally, it is recommended that this section be equipped with an exhaust monitor.
第２図中、１９は、建屋内に設けた控室である。In Figure 2, 19 is a waiting room provided within the building.
また、３１は、門型クレーン３のレールである。Further, 31 is a rail of the portal crane 3.
サイロ２・・・は、コンクリートで適宜厚さの円筒形に
形成して、上記地中梁１１の間で床版Ｉ２上に一体に突
設し、下端に地中梁の間の空室１１ａ・・・に位置させ
て複数の空気流入口２１・・・を形成し、上端に小さな
内向き７ランジ２２・・・を形成している。なお、サイ
ロは円筒形に限るものではなく、多角形その他適宜であ
る。The silo 2... is formed of concrete into a cylindrical shape with an appropriate thickness, is integrally protruded on the floor slab I2 between the underground beams 11, and has a vacant space 11a between the underground beams at the lower end. A plurality of air inlets 21 are formed at the upper end thereof, and seven small inward flange 22 are formed at the upper end. Note that the silo is not limited to a cylindrical shape, but may be polygonal or other appropriate shape.
地中梁１１の間の空室１１ａ・・・の上部にグレーチン
グｌｌｂ・・・を設けるとよい。It is preferable to provide gratings llb... above the empty spaces 11a... between the underground beams 11.
Ｉｌｌ 作用
如上の構成であり、キャスクＡ・・・の収納に当っては
、キャスクＡを１個宛キャスク運搬車４により建屋１内
に搬入し、門型クレーン３により起立状態でサイロ２・
・・内へ挿入し床版１２上に載置する。The structure is as described above, and when storing casks A..., each cask A is carried into the building 1 by the cask transport vehicle 4, and the silo 2 is placed in an upright position by the portal crane 3.
... and place it on the floor slab 12.
斯様に収納されると、キャスクＡ・・・は、発熱により
周囲に上昇気流を生じさせて、サイロ２・・・内に煙突
に見られる自然通風が発生する。また、これが基になっ
て建屋１の内外に対流作用が生ずる。When stored in this manner, the cask A generates an upward air current around it due to heat generation, and natural ventilation as seen in a chimney is generated inside the silo 2. Also, based on this, convection occurs inside and outside the building 1.
つまり、外気が建屋１の空気取入口１５・・・から建屋
内に流入し、地中梁１１の間の空室１１＆・・・からサ
イロ下部の空気流入口２１・・・を経て、サイロ２・・
・内を高速度で通り抜け、更に、上昇して排気口１７か
ら建屋１外へ排出される。従って、サイロ２・・・内の
キャスクＡ・・・は、効率よく自然空冷される。That is, outside air flows into the building from the air intake ports 15 of the building 1, passes through the air inlets 21 at the bottom of the silo from the empty spaces 11 between the underground beams 11, and then flows into the silo 2.・・・
- Passes through the interior at high speed, rises further, and is discharged from the exhaust port 17 to the outside of the building 1. Therefore, the casks A in the silos 2 are efficiently cooled by natural air.
キャスクＡ・・・から放出される放射線は、前述のよう
に一部分であるが、該放射線は、主として直進性の強い
γ線である。この放射線は、サイロ２・・・に到達する
と熱に変り、サイロの周辺へはほとんど洩れ出ない。Although only a portion of the radiation is emitted from the cask A as described above, this radiation is mainly gamma rays that travel in a straight line. When this radiation reaches Silo 2, it turns into heat and hardly leaks out to the surrounding area of the silo.
なお、サイロ２・・・は、キャスクＡ・・・からの輻射
熱でも温度上昇するが、これは、建屋１内の対流作用を
助長する。Note that the temperature of the silos 2 increases due to the radiant heat from the casks A, which promotes convection within the building 1.
また、サイロ下部の空気流入口２１・・・は、地中梁１
１の間の空室１１ａ・・・内で開口するので、該空気流
入口２１・・・からサイロ周辺へ放射線が洩れることは
なく、作業員が周囲にいても害を及ぼさない。In addition, the air inlet 21 at the bottom of the silo is connected to the underground beam 1.
Since the opening is in the empty chamber 11a between the silos 1 and 1, radiation will not leak from the air inlet 21 to the surrounding area of the silo, and will not harm workers even if they are nearby.
なお、サイロ２・・・は、比較的大きなものに形成して
、複数のキャスクＡ・・・を収容できるようにしてもよ
い。Note that the silos 2... may be formed to be relatively large so as to be able to accommodate a plurality of casks A....
本発明によれば、建屋内の基礎床上に、放射線遮蔽性能
を有するサイロを設け、該サイロに冷却空気流通手段を
講じているので、建屋の構造を極めて簡素化でき、外壁
等は薄い一般的なものでよく、強制空冷のための複雑な
迷路形式をとる必要なく、全体構造をコンパクトにでき
、建設費、建設工期を大幅に低減できる。According to the present invention, a silo with radiation shielding performance is installed on the foundation floor inside the building, and cooling air circulation means are provided to the silo, so the structure of the building can be extremely simplified, and the outer walls are thin and conventional. The overall structure can be made compact without the need for a complicated labyrinth structure for forced air cooling, and construction costs and construction time can be significantly reduced.
また、サイロにより放射線遮蔽性能を向上できるばかり
でなく、煙突で見られる自然通風を得ることができて、
頗る効率の高い自然冷却が得られる。In addition, the silo not only improves radiation shielding performance, but also allows for the natural ventilation found in chimneys.
Extremely efficient natural cooling can be obtained.
更に、上述のように建屋構造を簡素化でき、コンパクト
化できるので、施設耐震上の問題点を簡単に解決できる
。Furthermore, since the building structure can be simplified and made more compact as described above, problems with earthquake resistance of the facility can be easily solved.
図面は、本発明の実施例で、第１図は、裁断正面図、第
２図は、截断平面図、第３図は、第１図の要部拡大断面
図、第４図は、第３図■−■線の断面図、第５図は、第
３図Ｖ−Ｖ＠の断面図、第６図は、他部の截断平面図で
ある。
１・・・コンクリート建屋 ２・・・サイロ３・・・門
型クレーン ４・・・キャスク運搬車ｌ】・・・地
中梁 １１ａ・・・空室１１ｂ・・・グレー
チング 【２・・・床版１３・・・上部床
１４・・・外壁１５・・・空気取入口 １６
・・・屋根１７・・・排気口 １８・・・出
入口１９・・・控室、２１・・・空気流入口２２・・・
内向キ７ランジ ３１・・・レールＡ・・・キャスク
第１図 −゛
第２図
し −ヨThe drawings show examples of the present invention; FIG. 1 is a cutaway front view, FIG. 2 is a cutaway plan view, FIG. 3 is an enlarged sectional view of the main part of FIG. 1, and FIG. FIG. 5 is a sectional view taken along line V-V@ in FIG. 3, and FIG. 6 is a cutaway plan view of other parts. 1... Concrete building 2... Silo 3... Portal crane 4... Cask transport vehicle l]... Underground beam 11a... Vacant room 11b... Grating [2... Floor Version 13...upper floor
14...Outer wall 15...Air intake 16
...Roof 17...Exhaust port 18...Entrance/exit 19...Waiting room, 21...Air inlet 22...
Inward key 7 lunge 31...Rail A...Cask Fig. 1 -゛Fig. 2 -yo
Claims (1)
蔽性能を備えた適宜形状のサイロを適宜数設け、該サイ
ロに冷却空気流通手段を講じたことを特徴とする高レベ
ル放射性物質貯蔵施設。A high-level radioactive material storage facility characterized by having an appropriate number of silos of an appropriate shape with radiation shielding performance for loosely inserting casks on the foundation floor in a building, and providing cooling air circulation means to the silos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279950A JPS61158570A (en) | 1984-12-28 | 1984-12-28 | Facility for storing highly radioactive substance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59279950A JPS61158570A (en) | 1984-12-28 | 1984-12-28 | Facility for storing highly radioactive substance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61158570A true JPS61158570A (en) | 1986-07-18 |
| JPH0458920B2 JPH0458920B2 (en) | 1992-09-18 |
Family
ID=17618179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59279950A Granted JPS61158570A (en) | 1984-12-28 | 1984-12-28 | Facility for storing highly radioactive substance |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61158570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505431A (en) * | 2018-10-15 | 2019-03-22 | 中国核电工程有限公司 | A kind of novel fast reactor fuel plant arragement construction |
| JP2021032679A (en) * | 2019-08-23 | 2021-03-01 | 日立Ｇｅニュークリア・エナジー株式会社 | Storage facility |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS576100U (en) * | 1980-06-11 | 1982-01-12 | ||
| JPS5716400A (en) * | 1980-03-27 | 1982-01-27 | Gen Puuru Re Tekuniku Nuubueru | Shielding material for packing radioactive effluent |
| JPS5863895A (en) * | 1981-10-12 | 1983-04-15 | 三菱マテリアル株式会社 | Dry type storage method of radioactive material and the like |
| JPS58135496A (en) * | 1981-11-06 | 1983-08-12 | ドイツチエ・ゲゼルシヤフト・フユ−ル・ヴイ−ダ−アウフアルバイツンク・フオン・ケルンブレンシユトツフエン・ミツト・ベシユレンクテル・ハフツング | Concrete protection casing for storing nuclear fuel element container |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5242726A (en) * | 1975-10-01 | 1977-04-02 | Fuji Photo Film Co Ltd | Photographic magenta color forming coupler |
-
1984
- 1984-12-28 JP JP59279950A patent/JPS61158570A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5716400A (en) * | 1980-03-27 | 1982-01-27 | Gen Puuru Re Tekuniku Nuubueru | Shielding material for packing radioactive effluent |
| JPS576100U (en) * | 1980-06-11 | 1982-01-12 | ||
| JPS5863895A (en) * | 1981-10-12 | 1983-04-15 | 三菱マテリアル株式会社 | Dry type storage method of radioactive material and the like |
| JPS58135496A (en) * | 1981-11-06 | 1983-08-12 | ドイツチエ・ゲゼルシヤフト・フユ−ル・ヴイ−ダ−アウフアルバイツンク・フオン・ケルンブレンシユトツフエン・ミツト・ベシユレンクテル・ハフツング | Concrete protection casing for storing nuclear fuel element container |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109505431A (en) * | 2018-10-15 | 2019-03-22 | 中国核电工程有限公司 | A kind of novel fast reactor fuel plant arragement construction |
| JP2021032679A (en) * | 2019-08-23 | 2021-03-01 | 日立Ｇｅニュークリア・エナジー株式会社 | Storage facility |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0458920B2 (en) | 1992-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |