JPH0568680B2 - - Google Patents
Info
- Publication number
- JPH0568680B2 JPH0568680B2 JP59254644A JP25464484A JPH0568680B2 JP H0568680 B2 JPH0568680 B2 JP H0568680B2 JP 59254644 A JP59254644 A JP 59254644A JP 25464484 A JP25464484 A JP 25464484A JP H0568680 B2 JPH0568680 B2 JP H0568680B2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- radioactive material
- material storage
- wall
- floor
- 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
- 239000012857 radioactive material Substances 0.000 claims description 21
- 230000005855 radiation Effects 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 13
- 239000011810 insulating material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims 1
- 239000004567 concrete Substances 0.000 description 10
- 230000002093 peripheral effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000011150 reinforced concrete Substances 0.000 description 2
- 101150054854 POU1F1 gene Proteins 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 239000002918 waste heat Substances 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
- Y02E30/30—Nuclear fission reactors
Landscapes
- Compounds Of Unknown Constitution (AREA)
- Building Environments (AREA)
Description
【発明の詳細な説明】
〔発明の目的〕
産業上の利用分野
本発明は、高レベル放射性物質貯蔵施設に関す
る。DETAILED DESCRIPTION OF THE INVENTION OBJECTS OF THE INVENTION Field of Industrial Application The present invention relates to high-level radioactive material storage facilities.
従来の技術
キヤニスタ（放射性物質の缶詰）を貯蔵する放
射性物質貯蔵施設は、通常、下部が多数の貯蔵ピ
ツトを配列した放射性物質貯蔵室、上部がオペレ
ーテイングフロアーとなつており、貯蔵ピツト上
部床で上下に仕切られている。 Conventional technology Radioactive material storage facilities that store canisters (canned radioactive materials) usually have a radioactive material storage room with a large number of storage pits arranged at the bottom, and an operating floor at the top. It is divided into upper and lower parts.
この場合の建屋躯体は、放射線遮蔽性能を有す
る鉄筋コンクリート構造であり、貯蔵ピツト上部
床は、貯蔵ピツト内へ上方からキヤニスタを差入
れるための多数のマンホールを蜂巣状に有し、こ
れらのマンホールに同様にして放射線遮蔽性能を
有するプラグを着脱自在に嵌挿している。 The building frame in this case is a reinforced concrete structure with radiation shielding performance, and the upper floor of the storage pit has a number of honeycomb-like manholes for inserting canisters into the storage pit from above. A plug with radiation shielding performance is removably inserted into the housing.
また、放射性物質貯蔵室は、内部がキヤニスタ
内容物によりかなりの高温となるので、オペレー
テイングフロアーから冷却空気を供給して空冷し
ている。 Furthermore, since the inside of the radioactive material storage room becomes quite hot due to the contents of the canister, cooling air is supplied from the operating floor to cool it.
発明が解決しようとする問題点
しかし、従来の施設では、第５図に示すよう
に、キヤニスタＣからの発熱が輻射熱、対流伝熱
として建屋コンクリート躯体へ伝達されるばかり
でなく、キヤニスタＣからの放射線（主としてγ
線、少量のα線）が建屋コンクリート躯体Ａに達
することにより躯体内で発熱するので、建屋コン
クリート躯体Ａがかなり高温となり、寿命が低下
する欠点がある。 Problems to be Solved by the Invention However, in conventional facilities, as shown in Figure 5, the heat generated from canister C is not only transmitted to the building concrete frame as radiant heat and convection heat transfer, but also Radiation (mainly γ
When the rays and a small amount of alpha rays) reach the concrete building frame A, heat is generated within the building body, so the concrete building frame A becomes quite hot, which has the disadvantage of shortening its lifespan.
本発明は、斯る従来の欠点を除去しようとする
ものである。 The present invention seeks to eliminate such conventional drawbacks.
〔発明の構成〕
問題点を解決するための手段
上記目的達成のため、本発明は、多数の貯蔵ピ
ツトを配列した放射性物質貯蔵室の上に、貯蔵ピ
ツト上部床を介してオペレーテイングフロアーを
設け、該オペレーテイングフロアーから放射性物
質貯蔵室へ冷却空気を供給するようにした高レベ
ル放射性物質貯蔵施設において、その放射性物質
貯蔵施設内に、それらの貯蔵ピツト全体を囲成す
る熱遮蔽壁を配して、該熱遮蔽壁を貯蔵ピツト上
部床乃至梁から下端を開放させて垂設し、而し
て、その熱遮蔽壁は、鋼製の外殻に放射線遮蔽・
断熱材を充填して形成し、上記オペレーテイング
フロアーからの冷却空気をその熱遮蔽壁の外側か
ら内側へと回り込ませるよう構成したことを特徴
とする。[Structure of the Invention] Means for Solving the Problems In order to achieve the above object, the present invention provides an operating floor above a radioactive material storage chamber in which a large number of storage pits are arranged, via a floor above the storage pits. , in a high-level radioactive material storage facility in which cooling air is supplied from the operating floor to the radioactive material storage room, a heat shielding wall is arranged within the radioactive material storage facility to surround the entire storage pit. The heat shielding wall is vertically installed from the upper floor or beam of the storage pit with its lower end open, and the heat shielding wall has a steel outer shell with radiation shielding and radiation shielding.
The heat shielding wall is characterized in that it is filled with a heat insulating material and configured to allow cooling air from the operating floor to flow around from the outside to the inside of the heat shielding wall.
作用
如上の構成であるから、第４図に示すように、
キヤニスタＣから建屋コンクリート躯体Ａへ輻射
熱、対流伝熱として伝達される熱は、熱遮蔽壁と
冷却空気とにより遮断され、また、放射線は、熱
遮蔽壁に達すると該熱遮蔽壁内での放射線遮蔽・
断熱材で発熱して、建屋コンクリート躯体には到
達しない。つまり、放射線も熱遮蔽壁で遮蔽され
る。 Effect Since the above configuration is as shown in Fig. 4,
The heat transferred from the canister C to the building concrete frame A as radiant heat and convection heat transfer is blocked by the heat shield wall and the cooling air, and when the radiation reaches the heat shield wall, it is absorbed by the radiation within the heat shield wall. Shielding/
The heat is generated by the insulation material and does not reach the concrete frame of the building. In other words, radiation is also shielded by the heat shielding wall.
実施例
第１図乃至第３図は、本発明の実施例を示して
いる。 Embodiment FIGS. 1 to 3 show an embodiment of the present invention.
第１図において、１は、多数の貯蔵ピツト１１
……を配列した地下の放射性物質貯蔵室、２は、
該貯蔵室の周壁、３，３は該周壁の上方の梁、４
は、該周壁の外側の外壁、５は、放射性物質貯蔵
室１の上に設けた地上のオペレーテイングフロア
ー、６は、該オペレーテイングフロアーの周壁、
７は、上記梁３，３に架設し、上記貯蔵ピツト１
１……に対応させて多数のマンホールを配した貯
蔵ピツト上部床、７１……は、それらのマンホー
ルへ着脱自在に嵌挿したプラグ、９は、オペレー
テイングフロアー５から放射性物質貯蔵室１に至
る冷却空気導入路、１２は、放射性物質貯蔵室の
床であり、以上の建屋躯体Ａは、放射線遮蔽性能
を有する鉄筋コンクリートから成る。 In FIG. 1, 1 indicates a large number of storage pits 11.
2 is an underground radioactive material storage room arranged with...
A peripheral wall of the storage chamber, 3, 3 is a beam above the peripheral wall, 4
is an outer wall outside the peripheral wall, 5 is an operating floor above the ground provided above the radioactive material storage chamber 1, 6 is a peripheral wall of the operating floor,
7 is installed on the beams 3, 3, and the storage pit 1
The upper floor of the storage pit is equipped with a large number of manholes corresponding to 1..., 71... is a plug that is removably inserted into the manholes, and 9 leads from the operating floor 5 to the radioactive material storage chamber 1. The cooling air introduction path 12 is the floor of the radioactive material storage room, and the building frame A described above is made of reinforced concrete with radiation shielding performance.
８は、上記放射性物質貯蔵室１内で上記貯蔵ピ
ツト１１……全体を囲成させて上記梁３，３から
垂設した熱遮蔽壁であり、該熱遮蔽壁は、第２
図、第３図に示すように、縦に細長い多数の熱遮
蔽板８１……を横方向に無端に組み合わせて成
り、これらの熱遮蔽板は、両側縁を組み合わせ用
に段状に形成した平たい鋼製缶体８１１……を設
け、該鋼製缶体内にコンクリート、モルタル等の
放射線遮蔽・断熱材８１２……を充填している。
図中、８１３は、リブである。 Reference numeral 8 denotes a heat shielding wall that surrounds the entire storage pit 11 in the radioactive material storage chamber 1 and is hung vertically from the beams 3, 3;
As shown in Fig. 3, a large number of vertically elongated heat shielding plates 81... are combined in an endless manner in the horizontal direction. A steel can body 811 is provided, and a radiation shielding/insulating material 812 such as concrete or mortar is filled inside the steel can body.
In the figure, 813 is a rib.
而して、熱遮蔽板８１……は、第２図、第３図
に示すように、上端を梁３，３に設けたアンカー
３１……，３１……により梁へ断熱材３２……，
３２……を介して固定して垂下させ、下部外面に
下方へ向う鈎片８１４……を設けて、該鈎片を放
射性物質貯蔵室１の周壁２内面から突設した支持
具２１……に可動に係合させており、隣接相互を
段状の縁部で互いに組み合わせている。 As shown in FIGS. 2 and 3, the heat shielding plates 81... are attached to the beams by the heat insulating materials 32...
A hook piece 814 facing downward is provided on the outer surface of the lower part, and the hook piece is attached to a support 21... protruding from the inner surface of the peripheral wall 2 of the radioactive material storage chamber 1. They are movably engaged, and adjacent ones are interlocked with stepped edges.
また、熱遮蔽板８１……の外面及び下端は、放
射性物質貯蔵室１の周壁２及び床１２から離間さ
せて、上記冷却空気導入路９から流入する冷却空
気を熱遮蔽板の外側から下方へそして内側へと回
り込ませるようにしている。 The outer surface and lower end of the heat shielding plates 81 are spaced apart from the peripheral wall 2 and floor 12 of the radioactive material storage chamber 1, so that the cooling air flowing in from the cooling air introduction path 9 is directed downward from the outside of the heat shielding plates. And I try to make it go around inward.
如上の構成であるから、第４図に示すように、
キヤニスタＣから建屋コンクリート躯体Ａへ向う
輻射熱及び対流伝熱が熱遮蔽壁８と冷却空気の流
入で遮蔽され、且つ、キヤニスタＣからの放射線
が熱遮蔽壁８内で発熱して躯体Ａへ到達せず、躯
体の温度上昇が阻止される。この際、熱遮蔽壁８
は、熱膨張することとなるが、膨張分は下方への
伸出及び組み合わせ部分の伸出で逃げることがで
きる。 Since the above configuration is as shown in Figure 4,
Radiant heat and convection heat transfer from the canister C to the building concrete frame A are blocked by the heat shield wall 8 and the inflow of cooling air, and radiation from the canister C is prevented from generating heat within the heat shield wall 8 and reaching the frame A. First, the temperature rise of the building body is prevented. At this time, the heat shield wall 8
will undergo thermal expansion, but the expansion can be escaped by extending downward and by extending the combined part.
本発明によれば、キヤニスタから建屋コンクリ
ート躯体へと輻射熱、対流伝熱として伝達される
熱が熱遮蔽壁と冷却空気によつて遮断されること
は勿論、放射線も、熱遮蔽壁に達すると該熱遮蔽
壁内の放射線遮断・断熱材がその放射線を吸収し
て発熱し、建屋コンクリート躯体へは到達せず、
遮蔽される。従つて、建屋躯体の温度上昇を低く
おさえることができ、熱応力を少なくすることが
できて、熱影響わ防止することができ、鉄筋量を
低減でき、長期にわたる健全性を保持できる。
According to the present invention, not only the heat transferred from the canister to the building concrete frame as radiant heat and convection heat transfer is blocked by the heat shield wall and the cooling air, but also the radiation is blocked when it reaches the heat shield wall. The radiation blocking/insulating material inside the heat shielding wall absorbs the radiation and generates heat, which does not reach the concrete building frame.
shielded. Therefore, the temperature rise in the building frame can be suppressed, thermal stress can be reduced, thermal influence can be prevented, the amount of reinforcing bars can be reduced, and long-term soundness can be maintained.
また、冷却空気による排熱温度を高くできて、
排熱利用の効率を上げることができる。 In addition, the exhaust heat temperature by cooling air can be increased,
The efficiency of waste heat utilization can be increased.
更に、熱遮蔽壁を貯蔵ピツト上部床乃至梁から
下端を開放させて垂設しているので、熱膨張・収
縮を許容させることができる。 Furthermore, since the heat shielding wall is vertically disposed from the upper floor or beam of the storage pit with its lower end open, it is possible to allow thermal expansion and contraction.
而して、熱遮蔽壁内の放射線遮蔽・断熱材に
は、コンクリート、モルタル等を使用すればよ
く、斯る放射線遮蔽・断熱材は、放射線により自
身が発熱して劣化するが、鋼製の外殻に充填して
いるので、その熱遮蔽壁の形状を保持でき、構造
力学的健全性を維持できて、支障を生じない。 Therefore, it is sufficient to use concrete, mortar, etc. for the radiation shielding/insulating material inside the heat shielding wall, and such radiation shielding/insulating materials themselves heat up and deteriorate due to radiation, but steel Since it is filled in the outer shell, the shape of the heat shielding wall can be maintained, the structural mechanical soundness can be maintained, and no problems will occur.
第１図は、本発明の実施例を示す縦断面図、第
２図は、要部の拡大縦断面図、第３図は、要部の
拡大横断面図、第４図は、本発明の説明図、第５
図は、従来例の説明図である。
１……放射性物質貯蔵室、２……周壁、３……
梁、４……外壁、５……オペレーテイングフロア
ー、６……周壁、７……貯蔵ピツト上部床、８…
…熱遮蔽壁、９……冷却空気導入路、１１……貯
蔵ピツト、１２……床、７１……プラグ、８１…
…熱遮蔽板、８１１……鋼製缶体、８１２……放
射線遮蔽・断熱材、３１……アンカー、３２……
断熱材、２１……支持具、８１４……鈎片、Ａ…
…建屋躯体。
Fig. 1 is a longitudinal cross-sectional view showing an embodiment of the present invention, Fig. 2 is an enlarged longitudinal cross-sectional view of the main part, Fig. 3 is an enlarged cross-sectional view of the main part, and Fig. 4 is a cross-sectional view of the main part. Explanatory diagram, 5th
The figure is an explanatory diagram of a conventional example. 1... Radioactive material storage room, 2... Surrounding wall, 3...
Beam, 4...Outer wall, 5...Operating floor, 6...Peripheral wall, 7...Storage pit upper floor, 8...
...Heat shielding wall, 9...Cooling air introduction path, 11...Storage pit, 12...Floor, 71...Plug, 81...
...Heat shielding plate, 811...Steel can body, 812...Radiation shielding/insulating material, 31...Anchor, 32...
Insulating material, 21... Support, 814... Hook piece, A...
...Building frame.
Claims (1)
室の上に、貯蔵ピツト上部床を介してオペレーテ
イングフロアーを設け、該オペレーテイングフロ
アーから放射性物質貯蔵室へ冷却空気を供給する
ようにした高レベル放射性物質貯蔵施設におい
て、その放射性物質貯蔵施設内に、それらの貯蔵
ピツト全体を囲成する熱遮蔽壁を配して、該熱遮
蔽壁を貯蔵ピツト上部床乃至梁から下端を開放さ
せて垂設し、而して、その熱遮蔽壁は、鋼製の外
殻に放射線遮蔽・断熱材を充填して形成し、上記
オペレーテイングフロアーからの冷却空気をその
熱遮蔽壁の外側から内側へと回り込ませるよう構
成したことを特徴とする高レベル放射性物質貯蔵
施設。1. An operating floor is provided above the radioactive material storage room in which a large number of storage pits are arranged through the upper floor of the storage pit, and cooling air is supplied from the operating floor to the radioactive material storage room. In a material storage facility, a heat shielding wall that surrounds the entire storage pit is provided within the radioactive material storage facility, and the heat shielding wall is hung vertically from the floor or beam above the storage pit with its lower end open. The heat shield wall is formed by filling a steel outer shell with radiation shielding/insulating material, and allows cooling air from the operating floor to circulate from the outside to the inside of the heat shield wall. A high-level radioactive material storage facility characterized by being configured as follows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254644A JPS61132895A (en) | 1984-11-30 | 1984-11-30 | High-level radioactive substance storage facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254644A JPS61132895A (en) | 1984-11-30 | 1984-11-30 | High-level radioactive substance storage facility |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61132895A JPS61132895A (en) | 1986-06-20 |
| JPH0568680B2 true JPH0568680B2 (en) | 1993-09-29 |
Family
ID=17267881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59254644A Granted JPS61132895A (en) | 1984-11-30 | 1984-11-30 | High-level radioactive substance storage facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61132895A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2753846B2 (en) * | 1989-03-06 | 1998-05-20 | 大成建設株式会社 | Column concrete press-in method |
| ES2320675T3 (en) * | 2004-03-18 | 2009-05-27 | Holtec International, Inc. | SYSTEMS AND METHODS TO STORE HIGH ACTIVITY RADIOACTIVE WASTE. |
| JP2008064462A (en) * | 2006-09-04 | 2008-03-21 | Toyo Eng Corp | Facility for storing radioactive material and its cooling system with natural ventilation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419097A (en) * | 1977-07-07 | 1979-02-13 | Nukem Gmbh | Device for storing irradiated or burned fuel element picked out of highhtemperature nuclear reactor |
| JPS5727437A (en) * | 1980-07-24 | 1982-02-13 | Tdk Corp | Production of magnetic tape |
| JPS5886500A (en) * | 1981-11-18 | 1983-05-24 | 三菱マテリアル株式会社 | Method of storing in dry radioactive material |
-
1984
- 1984-11-30 JP JP59254644A patent/JPS61132895A/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5419097A (en) * | 1977-07-07 | 1979-02-13 | Nukem Gmbh | Device for storing irradiated or burned fuel element picked out of highhtemperature nuclear reactor |
| JPS5727437A (en) * | 1980-07-24 | 1982-02-13 | Tdk Corp | Production of magnetic tape |
| JPS5886500A (en) * | 1981-11-18 | 1983-05-24 | 三菱マテリアル株式会社 | Method of storing in dry radioactive material |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61132895A (en) | 1986-06-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0528674B1 (en) | Passive cooling system for liquid metal cooled nuclear reactors with backup coolant flow path | |
| US9460821B2 (en) | System and method for the ventilated storage of high level radioactive waste in a clustered arrangement | |
| CN101523506B (en) | System and method of storing high level waste | |
| US5909475A (en) | Spent nuclear fuel container | |
| KR20220050975A (en) | Radiation shielding enclosures for spent fuel casks | |
| WO1999063544A1 (en) | Dry storage vault | |
| CN112703563A (en) | Waterproof and windproof ventilation module for spent nuclear fuel storage | |
| JPH0568680B2 (en) | ||
| JP3881545B2 (en) | Cask storage facility | |
| JP3810589B2 (en) | Radioactive waste storage facility | |
| JP2001235582A (en) | Cask for dry transport and storage of spent fuel, etc. | |
| JPH0639360Y2 (en) | Storage pit of radioactive material storage facility | |
| JPS6355496A (en) | Nuclear reactor | |
| JPH05273392A (en) | Storage building for spent nuclear fuel | |
| JPS61158570A (en) | Facility for storing highly radioactive substance | |
| RU2082233C1 (en) | Container from reinforced concrete | |
| JPS61158571A (en) | Facility for storing highly radioactive substance | |
| JPH10104397A (en) | Device for storing solidified package | |
| JPH05879Y2 (en) | ||
| USH51H (en) | Heat insulating system for a fast reactor shield slab | |
| KR970011259B1 (en) | Nuclear fuel storehouse | |
| KR100687096B1 (en) | Permanent reactor cavity seal assembly | |
| KR20240022621A (en) | Ventilated cask for nuclear waste storage | |
| CN117501383A (en) | Ventilation barrel for nuclear waste storage | |
| JPS62140096A (en) | Storage device for radioactive substance vessel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |