JPH04120398U - Radioactive material storage equipment - Google Patents
Radioactive material storage equipmentInfo
- Publication number
- JPH04120398U JPH04120398U JP3434391U JP3434391U JPH04120398U JP H04120398 U JPH04120398 U JP H04120398U JP 3434391 U JP3434391 U JP 3434391U JP 3434391 U JP3434391 U JP 3434391U JP H04120398 U JPH04120398 U JP H04120398U
- Authority
- JP
- Japan
- Prior art keywords
- material storage
- radioactive material
- radioactive
- cylindrical chamber
- constructed
- 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.)
- Withdrawn
Links
- 239000012857 radioactive material Substances 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 claims abstract description 13
- 230000005855 radiation Effects 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000007667 floating Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 239000013535 sea water Substances 0.000 description 6
- 239000002915 spent fuel radioactive waste Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- 239000000941 radioactive substance Substances 0.000 description 1
- 239000002901 radioactive waste Substances 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
(57)【要約】
【目的】 放射性物質貯蔵設備の建設地の確保、該貯蔵
設備までの放射性物質の輸送上の安全対策等を容易にす
る。
【構成】 放射線遮蔽材からなる浮体構造の躯体２を構
築するとともに、該躯体２の内部に、放射性物質貯蔵室
７と、給気シャフト１０と、排気シャフト１１と、放射
性物質貯蔵室７の周囲を囲んだ状態に配置され内部に水
が充填される筒状室１５とを区画形成し、該筒状室１５
を空の状態として海上を曳航し、海に埋め立て建設する
ことを可能にした。据え付け後に筒状室１５に水を充填
すればよく、この水も放射線遮蔽材として機能すること
になる。
【効果】 躯体２を工場等で予め構築しておいて、埋め
立て可能な範囲で任意の場所に建設し得るとともに、臨
海地域に建設される原子力発電所からの放射性物質の輸
送も人家に影響を与えることなく実施することができ、
極めて実用的である。
(57) [Summary] [Purpose] To facilitate securing construction sites for radioactive material storage facilities and safety measures for transporting radioactive materials to the storage facilities. [Structure] A floating frame 2 made of radiation shielding material is constructed, and inside the frame 2 there is a radioactive material storage chamber 7, an air supply shaft 10, an exhaust shaft 11, and the surroundings of the radioactive material storage chamber 7. A cylindrical chamber 15 is arranged surrounding the cylindrical chamber 15 and filled with water, and the cylindrical chamber 15
This made it possible to tow it over the sea in an empty state and construct it on land at sea. After installation, the cylindrical chamber 15 may be filled with water, and this water will also function as a radiation shielding material. [Effect] The frame 2 can be constructed in advance at a factory, etc., and can be constructed at any location within the range that can be reclaimed, and the transportation of radioactive materials from nuclear power plants built in coastal areas will not affect human homes. Can be carried out without giving,
Extremely practical.
Description
【０００１】0001
本考案は臨海地域付近に構築される放射性物質貯蔵設備に関する。 This invention relates to radioactive material storage facilities constructed near coastal areas.
【０００２】0002
一般に、原子炉で発生する使用済み核燃料集合体は、解体処理するとともに、 プルトニウム等の有用物質を取り出す再処理を行うようになっている。しかし、 軽水型原子炉において使用されるウラン燃料が供給過剰で価格が低下している場 合や高速増殖炉の実用化が遅れる場合等であると、経済性の点で使用済み核燃料 を直ちに再処理することが不利になることも考えられるため、このような状況の 際等には使用済み核燃料集合体を必要に応じて適宜貯蔵することが必要であると 考えられている。また、安全上、有用物質を取り出した後の放射性廃棄物もガラ ス固化体として貯蔵する等の必要があると考えられている。 Generally, spent nuclear fuel assemblies generated in nuclear reactors are dismantled and processed. Reprocessing is now being carried out to extract useful substances such as plutonium. but, If the uranium fuel used in light water reactors is in oversupply and the price is falling, If the commercialization of fast breeder reactors is delayed or if the practical application of fast breeder reactors is delayed, it is economically In such situations, it may be disadvantageous to immediately reprocess the In case of emergency, it is necessary to store spent nuclear fuel assemblies as necessary. It is considered. Also, for safety reasons, radioactive waste after useful materials are removed is also It is thought that it is necessary to store it as a solidified substance.
【０００３】 このような放射性物質の貯蔵設備は、その貯蔵室を放射線遮蔽壁で囲むととも に、その貯蔵中に放射性物質の崩壊熱による温度上昇が伴うので、これを冷却す ることが必要であり、この場合、貯蔵設備内の冷却方法を大気を利用した自然滞 留による冷却として運転コストの低減を図ることが好ましい。 この場合、一般には貯蔵設備は地上または地下に建設されるが、放射性物質を 取り扱うものであるため、放射線の遮蔽を確実に行う必要があるとともに、人家 から離れた地域を建設地として選択する必要がある。0003 Storage facilities for such radioactive materials must be constructed by surrounding the storage room with a radiation shielding wall. During storage, the temperature rises due to the decay heat of the radioactive materials, so it is necessary to cool them down. In this case, the cooling method inside the storage facility should be a natural stagnation method using the atmosphere. It is preferable to use distillation for cooling to reduce operating costs. In this case, storage facilities are generally constructed above ground or underground, but they do not contain radioactive materials. Because it is a product that is handled, it is necessary to ensure radiation shielding, and it is also necessary to It is necessary to select an area far away from the area as the construction site.
【０００４】0004
しかしながら、かかる立地条件を満足する建設地を確保することは容易でなく 、また、確保し得たとしても、原子力発電所から貯蔵設備までの間の使用済み核 燃料の輸送手段における安全対策も必要となる。 However, it is not easy to secure a construction site that satisfies these location conditions. , and even if it were possible to secure the spent nuclear weapons between the nuclear power plant and the storage facility. Safety measures for fuel transport methods are also required.
【０００５】 本考案は、建設地の確保、放射性物質の輸送上の安全対策等を容易にし得る貯 蔵設備を提供することを目的とする。[0005] This invention is a storage facility that can facilitate the securing of construction sites and safety measures for transporting radioactive materials. The purpose is to provide storage facilities.
【０００６】[0006]
本考案の放射性物質貯蔵設備は、放射線遮蔽材からなる底壁、側壁及び天井壁 により浮体構造の躯体を構築するとともに、該躯体の内部に、放射性物質貯蔵室 と、該放射性物質貯蔵室の下部に冷却空気を導入させる給気シャフトと、放射性 物質貯蔵室内において放射性物質の崩壊熱により高温となった冷却空気を放射性 物質貯蔵室の上部から排出する排気シャフトと、放射性物質貯蔵室の周囲を囲ん だ状態に配置され内部に水が充填される筒状室とを区画形成したことを特徴とす る。 The radioactive material storage equipment of the present invention has bottom walls, side walls, and ceiling walls made of radiation shielding material. In addition to constructing the framework of the floating structure, a radioactive material storage chamber is installed inside the framework. , an air supply shaft for introducing cooling air into the lower part of the radioactive material storage chamber, and a radioactive material storage chamber. The cooling air that has become hot due to the decay heat of radioactive materials in the material storage room is An exhaust shaft that discharges from the top of the material storage room and an exhaust shaft that surrounds the radioactive material storage room. It is characterized by being divided into a cylindrical chamber which is arranged in an open position and filled with water. Ru.
【０００７】[0007]
本考案の貯蔵設備においては、躯体が浮体構造となっているので、例えば、該 躯体及び貯蔵室の内部構造等を予め工場等で構築しておいて、筒状室を空の状態 として重量が小さい段階で、海上を曳航して海に埋め立て建設することができる 。この場合、筒状壁に海水等を充填することにより、重量を増加させて据え付け の安定化を図ることができる。また、この筒状壁に充填される水は放射線遮蔽材 としても機能し、側壁等と合わせて放射線を二重に遮蔽することができる。 In the storage facility of the present invention, since the frame has a floating structure, for example, The internal structure of the frame and storage chamber is constructed in advance at a factory, etc., and the cylindrical chamber is left empty. When the weight is small, it can be towed over the sea and constructed as a landfill in the sea. . In this case, the weight can be increased by filling the cylindrical wall with seawater etc. can be stabilized. In addition, the water filled in this cylindrical wall is made of radiation shielding material. It also functions as a double shield against radiation when combined with side walls, etc.
【０００８】[0008]
以下、本考案の放射性物質貯蔵設備の一実施例を図面に基づいて説明する。 この放射性物質貯蔵設備１は、その躯体２が浮体構造となっており、コンクリ ート等の放射線遮蔽材により底壁３、側壁４Ａ〜４Ｉ及び天井壁５Ａ〜５Ｇが構 築されるとともに、その底壁３の下面３ａがフラットに形成されている。そして 、この底壁３上面に各側壁４Ａ〜４Ｉが立ち上げられ、これら側壁４Ａ〜４Ｉの 上に天井壁５Ａ〜５Ｇが搭載されていることにより、フラットな底壁下面３ａを 油圧ジャッキ等により支持して全体を持ち上げることができるようになっている 。 Hereinafter, one embodiment of the radioactive material storage facility of the present invention will be described based on the drawings. This radioactive material storage facility 1 has a framework 2 that is a floating structure and is made of concrete. The bottom wall 3, side walls 4A to 4I, and ceiling walls 5A to 5G are constructed with radiation shielding materials such as The lower surface 3a of the bottom wall 3 is formed flat. and , each side wall 4A to 4I is raised on the upper surface of this bottom wall 3, and the side walls 4A to 4I are By mounting the ceiling walls 5A to 5G on top, a flat lower surface 3a of the bottom wall is created. The entire structure can be lifted by supporting it with a hydraulic jack, etc. .
【０００９】 また、この貯蔵設備１の中央部には、使用済み核燃料等の放射性物質６のため の貯蔵室７が区画形成されている。この放射性物質貯蔵室７においては、その天 井壁５Ｃに、放射性物質６を収納する複数の筒状ピット８が上下方向に沿って吊 持されるとともに、該天井壁５Ｃには筒状ピット８を閉塞する遮蔽プラグ９が設 けられている。そして、この貯蔵室７の下部に連通する給気シャフト１０と、上 部に連通する排気シャフト１１とが貯蔵室７の側方位置に設けられ、給気シャフ ト１０から取り入れた冷却空気を貯蔵室７の下部に導入して、放射性物質６の崩 壊熱を受けて高温となった冷却空気を排気シャフト１１を経由して大気に放出す るようになっている。なお、貯蔵室７の上方には、筒状ピット８内への放射性物 質６の出し入れのためのハンドリング装置１２を備えた取扱い室１３が設けられ ている。[0009] In addition, in the center of this storage facility 1, radioactive materials 6 such as spent nuclear fuel are stored. The storage chamber 7 is divided into sections. In this radioactive material storage room 7, A plurality of cylindrical pits 8 for storing radioactive materials 6 are suspended along the vertical direction on the well wall 5C. At the same time, a shielding plug 9 for closing the cylindrical pit 8 is installed on the ceiling wall 5C. I'm being kicked. An air supply shaft 10 that communicates with the lower part of this storage chamber 7 and an upper An exhaust shaft 11 communicating with the storage chamber 7 is provided at a side position of the storage chamber 7, and an air supply shaft The cooling air taken in from the tank 10 is introduced into the lower part of the storage chamber 7 to disintegrate the radioactive materials 6. The cooling air that has become high temperature due to the decomposition is discharged to the atmosphere via the exhaust shaft 11. It has become so. In addition, above the storage chamber 7, radioactive materials are stored in the cylindrical pit 8. A handling room 13 equipped with a handling device 12 for loading and unloading the material 6 is provided. ing.
【００１０】 一方、放射性物質貯蔵室７の回りには、該貯蔵室７を囲むように筒状室１５が 区画形成されており、該筒状室１５は、貯蔵室７の側壁４Ｃまたは給気シャフト １０の側壁４Ｅを内側側壁とし、該内側側壁４Ｃ・４Ｅに対して間隔をおいて外 側側壁４Ａ・４Ｆを立設することにより形成され、内部には海水が充填されてい る。0010 On the other hand, a cylindrical chamber 15 is provided around the radioactive material storage chamber 7 so as to surround the storage chamber 7. The cylindrical chamber 15 is partitioned into a side wall 4C of the storage chamber 7 or an air supply shaft. The side wall 4E of No. 10 is the inner side wall, and the outer wall is spaced apart from the inner side walls 4C and 4E. It is formed by erecting side walls 4A and 4F, and the inside is filled with seawater. Ru.
【００１１】 このように構成した放射性物質貯蔵設備１は、原子力発電所が設置されている 臨海地域近傍等に次のようにして埋め立て建設される。すなわち、工場等で底壁 ３、側壁４Ａ〜４Ｉ、天井壁５Ａ〜５Ｇからなる躯体２及び貯蔵室７の内部構造 等を構築するとともに、設置予定位置の海底２１にアンカー２２を立設しておき 、また、該設置予定位置を囲むように堤防２３を構築しておく。そして、貯蔵設 備１をその筒状室１５内が空の状態で海岸まで運搬して海上に浮かべ、図２に示 すように曳航船２４により曳航しながらアンカー２２の上方まで移動した後、堤 防２３内の海水を排水することにより貯蔵設備１の底壁３の下面３ａをアンカー ２２上に載置する。このとき、前記筒状室１５内に海水を充填することにより、 貯蔵設備１全体の重量を増加させるようにする。そして、このアンカー２２に貯 蔵装置１を固定した後、該貯蔵装置１の周囲の堤防２３に囲まれた範囲に土砂を 充填して、建設作業を完了する。[0011] The radioactive material storage facility 1 configured in this way is equipped with a nuclear power plant. Reclamation will be constructed near waterfront areas as follows. In other words, the bottom wall in factories etc. 3. Internal structure of the frame 2 and storage room 7 consisting of side walls 4A to 4I and ceiling walls 5A to 5G At the same time, an anchor 22 is erected on the seabed 21 at the planned installation location. Furthermore, an embankment 23 is constructed to surround the planned installation position. And storage facility The equipment 1 is transported to the coast with its cylindrical chamber 15 empty and floated on the sea as shown in Figure 2. After moving to above the anchor 22 while being towed by the towing boat 24, By draining the seawater in the barrier 23, the lower surface 3a of the bottom wall 3 of the storage facility 1 is anchored. 22. At this time, by filling the cylindrical chamber 15 with seawater, The weight of the entire storage facility 1 is increased. Then, store it in this anchor 22. After fixing the storage device 1, soil is poured into the area surrounded by the embankment 23 around the storage device 1. Fill and complete the construction work.
【００１２】 このように据え付けられた貯蔵設備１は、アンカー２２及び土砂により確実に 固定状態となるとともに、筒状室１５内に充填した海水により全体の重量が増し て、安定性が向上するものである。そして、放射性物質６を貯蔵した状態である と、給気シャフト１０から導入された外部の冷却空気が排気シャフト１１から放 出されることにより、放射性物質６が冷却される。また、その貯蔵室７は放射線 遮蔽材からなる壁により囲まれているとともに、周囲の筒状室１５内に充填され ている海水も遮蔽材としての機能を有するため、放射線を二重に遮蔽して、その 漏洩を確実に防止することができるものである。0012 The storage equipment 1 installed in this way is securely secured by the anchors 22 and earth and sand. At the same time, the seawater filled in the cylindrical chamber 15 increases the overall weight. As a result, stability is improved. And it is in a state where radioactive material 6 is stored. Then, the external cooling air introduced from the air supply shaft 10 is released from the exhaust shaft 11. By being discharged, the radioactive substance 6 is cooled. In addition, the storage room 7 is exposed to radiation. It is surrounded by a wall made of a shielding material and is filled in the surrounding cylindrical chamber 15. The seawater in the water also functions as a shielding material, so it double shields radiation and It is possible to reliably prevent leakage.
【００１３】 また、原子力発電所は、一般に海に面した臨海地域に建設されるものであり、 したがって、この貯蔵設備１を原子力発電所近傍に埋め立て建設することが可能 で、両者間の放射性物質の輸送上の問題も解消し得て、極めて実用的である。も ちろん、海岸から遠く離れた遠隔地に建設することも可能であり、その場合であ っても、工場で予め構築しておいて、海上を曳航して設置するのであるから、建 設作業が容易で建設期間の短縮化を図ることができる。[0013] Additionally, nuclear power plants are generally constructed in coastal areas facing the sea. Therefore, it is possible to construct this storage facility 1 on land near the nuclear power plant. This also solves the problem of transporting radioactive materials between the two, making it extremely practical. too Of course, it is also possible to build in remote areas far from the coast, in which case However, since it is pre-built in a factory and then towed over the sea and installed, The installation work is easy and the construction period can be shortened.
【００１４】[0014]
以上の説明から明らかなように、本考案の放射性物質貯蔵設備によれば、次の ような効果を奏することができる。 （ａ）躯体が浮体構造となっているから、該躯体を工場等で予め構築しておいて 、海上を曳航して海に埋め立て建設することができ、原子力発電所近傍位置ある いは遠隔地等、埋め立て可能な範囲で任意の場所に建設することができ、また、 臨海地域に建設される原子力発電所からの放射性物質の輸送も人家に影響を与え ることなく実施することができ、極めて実用的である。 （ｂ）海上を曳航して埋め立て建設する場合、曳航時には筒状室内に水を充填せ ずに全体の重量を小さくしておき、据え付け時等に水を充填することにより、作 業に応じて全体重量を調整することができ、建設作業の能率を高めることができ る。 （ｃ）筒状室に充填される水は放射線遮蔽材としても機能するから、躯体の壁と 合わせて放射線を二重に遮蔽することができ、その漏洩を確実に防止することが できる。 As is clear from the above explanation, according to the radioactive material storage equipment of the present invention, the following This effect can be achieved. (a) Since the frame is a floating structure, the frame must be constructed in advance at a factory etc. , it can be towed over the sea and constructed as a landfill in the sea, and it is located near a nuclear power plant. It can be constructed in any location that can be reclaimed, such as in remote areas or in remote areas. The transport of radioactive materials from nuclear power plants being built in coastal areas also has an impact on people's homes. It is extremely practical and can be carried out without any problems. (b) When constructing land by towing the ship over the sea, the cylindrical chamber must be filled with water during towing. By keeping the overall weight small and filling it with water during installation, it is possible to The overall weight can be adjusted according to the job, increasing the efficiency of construction work. Ru. (c) The water filled in the cylindrical chamber also functions as a radiation shielding material, so it In addition, radiation can be double shielded and leakage can be reliably prevented. can.
【図１】本考案の一実施例に係る放射性物質貯蔵設備を
埋め立て建設した後の状態を示す縦断面図である。FIG. 1 is a longitudinal sectional view showing the state of a radioactive material storage facility according to an embodiment of the present invention after construction on a landfill.
【図２】図１の貯蔵設備を海上で曳航している状態を示
す縦断面図である。FIG. 2 is a longitudinal cross-sectional view showing the storage facility of FIG. 1 being towed on the sea.
１ 放射性物質貯蔵設備 ２ 躯体 ３ 底壁 ３ａ 下面 ４Ａ〜４Ｉ 側壁 ５Ａ〜５Ｇ 天井壁 ６ 放射性物質 ７ 放射性物質貯蔵室 ８ 筒状ピット ９ 遮蔽プラグ １０ 給気シャフト １１ 排気シャフト １２ ハンドリング装置 １３ 取扱い室 １５ 筒状室 ２１ 海底 ２２ アンカー ２３ 堤防 1 Radioactive material storage equipment 2 Body 3 Bottom wall 3a Bottom surface 4A~4I side wall 5A~5G Ceiling wall 6 Radioactive materials 7 Radioactive material storage room 8 Cylindrical pit 9 Shielding plug 10 Air supply shaft 11 Exhaust shaft 12 Handling device 13 Handling room 15 Cylindrical chamber 21 Seabed 22 Anchor 23 Embankment
Claims (1)
井壁により浮体構造の躯体を構築するとともに、該躯体
の内部に、放射性物質貯蔵室と、該放射性物質貯蔵室の
下部に冷却空気を導入させる給気シャフトと、放射性物
質貯蔵室内において放射性物質の崩壊熱により高温とな
った冷却空気を放射性物質貯蔵室の上部から排出する排
気シャフトと、放射性物質貯蔵室の周囲を囲んだ状態に
配置され内部に水が充填される筒状室とを区画形成した
ことを特徴とする放射性物質貯蔵設備。Claim 1: A framework of a floating structure is constructed with a bottom wall, side walls, and a ceiling wall made of radiation shielding material, and a radioactive material storage chamber is provided inside the framework, and cooling air is provided below the radioactive material storage chamber. A supply shaft for introducing air, an exhaust shaft for discharging cooling air that has become high in the radioactive material storage room due to the decay heat of the radioactive material from the top of the radioactive material storage room, and an air supply shaft that surrounds the radioactive material storage room. 1. A radioactive material storage facility characterized by having a cylindrical chamber and a cylindrical chamber filled with water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3434391U JPH04120398U (en) | 1991-04-16 | 1991-04-16 | Radioactive material storage equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3434391U JPH04120398U (en) | 1991-04-16 | 1991-04-16 | Radioactive material storage equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04120398U true JPH04120398U (en) | 1992-10-28 |
Family
ID=31916791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3434391U Withdrawn JPH04120398U (en) | 1991-04-16 | 1991-04-16 | Radioactive material storage equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04120398U (en) |
-
1991
- 1991-04-16 JP JP3434391U patent/JPH04120398U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19950713 |