JP2001051095A - Inner containing vessel - Google Patents
Inner containing vesselInfo
- Publication number
- JP2001051095A JP2001051095A JP11226658A JP22665899A JP2001051095A JP 2001051095 A JP2001051095 A JP 2001051095A JP 11226658 A JP11226658 A JP 11226658A JP 22665899 A JP22665899 A JP 22665899A JP 2001051095 A JP2001051095 A JP 2001051095A
- Authority
- JP
- Japan
- Prior art keywords
- container
- lid
- container body
- internal
- vessel
- 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.)
- Pending
Links
Landscapes
- Stackable Containers (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は核燃料の製造、核施
設のメンテナンス、核物質の廃棄処理或いは医療放射線
の利用等の過程で生じる放射性廃棄物をドラム缶等の外
部容器に収納する内部収納容器に関し、特に外部容器へ
の収納効率の向上を図った内部収納容器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal storage container for storing radioactive waste generated in the process of manufacturing nuclear fuel, maintaining nuclear facilities, disposing of nuclear material, or utilizing medical radiation, in an external container such as a drum can. In particular, the present invention relates to an internal storage container that improves storage efficiency in an external container.
【０００２】[0002]
【従来の技術】従来、前記のような核施設で発生する放
射性廃素物は、カートンボックスやポリエチレンパック
等と呼ばれる容器に入れた後、これをドラム缶に収納
し、保管倉庫に保管する方法が取られている。ところ
が、前記のカートンボックスやポリエチレンパックは、
円筒型の容器であり、これをより大きなドラム缶に収納
するので、ドラム缶内に空隙が多く発生し、収納効率が
低くなる。その結果として、ドラム缶を保管する保管倉
庫の収納効率も低くなるという欠点があった。2. Description of the Related Art Conventionally, there has been a method in which radioactive waste generated in a nuclear facility as described above is placed in a container called a carton box or a polyethylene pack and then stored in a drum and stored in a storage warehouse. Has been taken. However, the carton box and polyethylene pack are
Since this is a cylindrical container, which is stored in a larger drum, many voids are generated in the drum and the storage efficiency is reduced. As a result, there is a drawback that the storage efficiency of the storage warehouse for storing the drums is reduced.
【０００３】例えば、従来において一般に使用されてい
るカートンボックスは、収納容積が２０Ｌであり、これ
は収納容積２０６Ｌのドラム缶に６個収納できる。その
ため、実質的な収納容積は２０Ｌ×６個＝１２０Ｌとな
り、ドラム缶の収納容積に対する実質的な収納容積の比
である収納効率は、５８．９％に過ぎない。For example, a carton box generally used in the past has a storage volume of 20 L, which can be stored in a drum having a storage volume of 206 L by six. Therefore, the substantial storage volume is 20 L × 6 pieces = 120 L, and the storage efficiency, which is the ratio of the substantial storage volume to the storage volume of the drum, is only 58.9%.
【０００４】また、従来において一般に使用されている
ポリエチレンパックは、収納容積が１３．５Ｌであり、
これは前記のドラム缶に８個収納できるる。そのため、
実質的な収納容積は１３．５Ｌ×８個＝１０８Ｌとな
り、ドラム缶の収納容積に対する実質的な収納容積の比
である収納効率は、５２．４％に過ぎない。[0004] In addition, a polyethylene pack generally used in the past has a storage volume of 13.5 L,
This can be stored in eight pieces in the drum. for that reason,
The actual storage volume is 13.5 L × 8 = 108 L, and the storage efficiency, which is the ratio of the substantial storage volume to the storage volume of the drum, is only 52.4%.
【０００５】[0005]
【発明が解決しようとしている課題】前述のように、従
来のカートンボックスやポリエチレンパックを用いた放
射性廃棄物の外部容器であるドラム缶への収納効率は低
いものであったが、実際の放射性廃棄物の廃棄作業の観
点から、放射性廃棄物を一旦内部容器に収納し、この内
部容器をドラム缶に収納することが不可欠である。As described above, the efficiency of storing radioactive waste in a drum can, which is an external container using a conventional carton box or polyethylene pack, is low as described above. From the viewpoint of disposal work, it is indispensable to temporarily store radioactive waste in an internal container and store the internal container in a drum.
【０００６】そこで本発明は、放射性廃棄物のドラム缶
等の外部容器ヘの収納効率が高く、しかも放射性廃棄物
が外部に漏れない構造で、人手による取り扱いが容易
で、容器内圧の変化を吸収できる構造を有し、必要な強
度を持ち、且つ可燃性の内部収納容器を提供することを
目的とする。Therefore, the present invention has a structure in which radioactive waste is stored in an external container such as a drum can at a high efficiency, has a structure in which radioactive waste does not leak outside, is easy to handle by hand, and can absorb a change in the internal pressure of the container. An object of the present invention is to provide an internal storage container having a structure, having a required strength, and being flammable.
【０００７】[0007]
【課題を解決するための手段】前記の目的を達成するた
め、本発明では、ドラム缶等の外部容器１０に収納する
内部容器の容器本体１の外形を、外部容器１の内部空間
を複数に分割した形状であって、定形的な形状とし、こ
の上面開口部５を対応する平面形状を有する蓋体２で閉
じるものである。蓋体２は容器本体１の上面開口部５を
気密に閉じる構造とし、さらに内圧変化に応答してそれ
を吸収できるように緩衝リブ６を設けた。In order to achieve the above object, according to the present invention, the outer shape of the container body 1 of the internal container housed in the external container 10 such as a drum can is divided into a plurality of internal spaces of the external container 1. The upper surface opening 5 is closed by a lid 2 having a corresponding planar shape. The lid 2 has a structure in which the upper opening 5 of the container body 1 is airtightly closed, and furthermore, a buffer rib 6 is provided so as to be able to absorb the internal pressure in response to a change.
【０００８】すなわち、本発明による内部収納容器は、
円筒形の外部容器１０の中に収納する内部収納容器であ
って、円柱体をその中心軸を一辺とする等角度間隔の放
射方向の面で複数に分割した外面形状を有し、内部空間
５と上面開口部７とを有する容器本体１と、この容器本
体１の上面開口部７に対応した形状を有し、容器本体１
の上部に嵌め込んでその上面開口部７を閉じる蓋体２と
を有し、容器本体１に蓋体２を嵌合した容器は、その複
数が円柱形に円形配列されると共に、１段または複数段
積み重ねられた状態で、円筒形の外部容器１０に収納可
能であることを特徴とするものである。That is, the internal container according to the present invention comprises:
An inner storage container that is stored in a cylindrical outer container 10 and has an outer surface shape in which a cylindrical body is divided into a plurality of parts at equal angular intervals in a radial direction with the central axis as one side, and an inner space 5 And a container body 1 having an upper surface opening 7 and a shape corresponding to the upper surface opening 7 of the container body 1.
And a lid 2 fitted in the upper part of the container and closing the upper opening 7 thereof. It is characterized in that it can be stored in a cylindrical outer container 10 in a state of being stacked in a plurality of stages.
【０００９】このような内部収納容器は、容器本体１に
蓋体２を嵌合した容器が、その複数を円柱形に円形配列
されると共に、１段または複数段積み重ねられた状態
で、円筒形の外部容器１０に収納可能であるため、定形
の複数の内部収納容器を外部容器１０の中に殆ど隙間無
く収納することができる。このため、内部収納容器の収
納容積の総和と外部容器１０の収納容積とはきわめて近
くなり、外部容器１０の収納容積に対する実質的な内部
容器の収納容積の総和の比である収納効率が高くなる。In such an internal storage container, a plurality of containers, each having a lid body 2 fitted to a container body 1 are arranged in a circular shape in a columnar shape, and are stacked in a single-stage or a plurality of stages. Can be stored in the outer container 10 with almost no gap. Therefore, the total storage volume of the internal storage container and the storage volume of the external container 10 are extremely close to each other, and the storage efficiency, which is the ratio of the substantial total storage volume of the internal container to the storage volume of the external container 10, increases. .
【００１０】しかも、内部収納容器は定形であるため、
その取り扱い、特に外部容器１０への収納が容易であ
る。また、蓋体２の上壁４には、その中心部の周囲に断
面波形の緩衝リブ６が設けられていると、内圧変動によ
る容器本体１や蓋体２の変形を吸収し、耐圧性を高める
ことができる。In addition, since the internal storage container is of a fixed shape,
The handling, especially the storage in the external container 10, is easy. When the upper wall 4 of the lid 2 is provided with a buffer rib 6 having a corrugated cross section around the center thereof, the deformation of the container body 1 and the lid 2 due to the internal pressure fluctuation is absorbed, and the pressure resistance is improved. Can be enhanced.
【００１１】前記の蓋体２の内面に顎状の爪１２が設け
られ、容器本体１の上部外面に蓋体２の嵌合時にその爪
１２が係合する凹部１１が設けられている。こうするこ
とにより、蓋体２が容器本体１の上面開口部を気密に閉
じた状態で簡単に蓋体２が外れなくなる。A jaw-shaped claw 12 is provided on the inner surface of the lid 2, and a concave portion 11 with which the claw 12 is engaged when the lid 2 is fitted is provided on an upper outer surface of the container body 1. By doing so, the lid 2 does not easily come off in a state where the lid 2 hermetically closes the upper opening of the container body 1.
【００１２】さらに、容器本体１の上面開口部７の周囲
から内側に鍔状のパッキン受３が延設され、蓋体２の容
器本体１への嵌合時に蓋体２の内面の前記パッキン受３
に当たる部分に弾性を有するパッキン１３が貼られてい
る。Further, a flange-shaped packing receiver 3 extends from the periphery of the upper surface opening 7 of the container body 1 to the inside, and when the lid 2 is fitted to the container body 1, the packing receiver 3 on the inner surface of the lid 2 is fitted. 3
A packing 13 having elasticity is attached to a portion corresponding to.
【００１３】このような容器本体１と蓋体２の構造で
は、蓋体２を容器本体１の上面開口部に嵌合したとき、
弾性を有するパッキン１３が蓋体２と容器本体１のパッ
キン受３との間に挟持され、前記の凹部１１と爪１２と
の係合により圧縮状態で固定されるので、高い気密性が
得られる。特に、容器本体１の上面開口部７の周囲のパ
ッキン受３に突状のリブ８が形成されているものでは、
パッキン１３がこのリブ８により局部的に圧縮されるた
め、より高い気密性が得られる。。容器本体１と蓋体２
が可燃物からなるものでは、焼却処理が可能な廃棄物を
収納した状態で内部収納容器ごと廃棄物の焼却処理が可
能である。In such a structure of the container body 1 and the lid 2, when the lid 2 is fitted into the upper opening of the container body 1,
Since the packing 13 having elasticity is sandwiched between the lid 2 and the packing receiver 3 of the container body 1 and is fixed in a compressed state by the engagement between the concave portion 11 and the claw 12, high airtightness is obtained. . In particular, in the case where the projecting rib 8 is formed on the packing receiver 3 around the upper opening 7 of the container body 1,
Since the packing 13 is locally compressed by the rib 8, higher airtightness can be obtained. . Container body 1 and lid 2
Is made of combustible material, the waste can be incinerated together with the internal storage container in a state where the waste that can be incinerated is stored.
【００１４】[0014]
【発明の実施の形態】次に、図面を参照しながら、本発
明の実施の形態について、具体的且つ詳細に説明する。
図１は、本発明の一実施形態としての内部収納容器の例
を示している。この図１に示すように、内部収納容器
は、上面を開口した中空の容器本体１と、この容器本体
１の上部に嵌合され、その上面開口部７を閉じる蓋体３
とからなる。Embodiments of the present invention will now be described specifically and in detail with reference to the drawings.
FIG. 1 shows an example of an internal storage container as one embodiment of the present invention. As shown in FIG. 1, the internal storage container has a hollow container body 1 having an open upper surface, and a lid body 3 fitted to the upper portion of the container body 1 and closing an upper surface opening 7 thereof.
Consists of
【００１５】容器本体１は、円筒形の外部容器１０（図
３参照）であるドラム缶の円柱形の内部空間を、その中
心軸を通る９０゜間隔の平面で切断し、且つ同外部容器
１０の内部空間を高さ方向に約半分の高さの平面で切断
した外形よりやや小さな外形を有している。すなわち、
容器本体１は、９０゜の角度で交差する２つの垂直な面
と、この垂直な面の交差線を中心とする１／４の円筒面
とに囲まれた周面を有し、且つ底面が閉じられ、上面の
みが開口した形状を有する。この容器本体１の中空な内
部は内部空間５となっており、上面はその内部空間５の
上面開口部７となっている。前記１／４の円筒面の曲率
半径は、外部容器１０の内部空間の周面の曲率半径より
やや小さい。The container body 1 cuts a cylindrical internal space of a drum, which is a cylindrical external container 10 (see FIG. 3), at a plane passing through its central axis at intervals of 90 °. It has an outer shape that is slightly smaller than the outer shape obtained by cutting the internal space along a plane that is about half the height in the height direction. That is,
The container body 1 has a peripheral surface surrounded by two vertical surfaces intersecting at an angle of 90 ° and a quarter cylindrical surface centered on the line of intersection of the vertical surfaces, and has a bottom surface. It has a shape that is closed and only the upper surface is open. The hollow interior of the container body 1 is an internal space 5, and the upper surface is an upper opening 7 of the internal space 5. The radius of curvature of the quarter cylindrical surface is slightly smaller than the radius of curvature of the peripheral surface of the internal space of the outer container 10.
【００１６】この容器本体１の上面開口部５の縁には、
内側に向けて鍔状のパッキン受３が一定の幅で延設され
ている。図２に示すように、このパッキン受３の上面に
は、平行に２条の突状のリブ８が***している。また、
図１に示すように、容器本体１の周面の前記上面開口部
５の近くには、一定の間隔で凹部１１が設けられてい
る。図２に示すように、この凹部１１の上縁部分は、後
述する蓋体２の爪１２の先端形状に対応して内側から外
側に向かって下がるような勾配を有している。At the edge of the upper opening 5 of the container body 1,
A flange-shaped packing receiver 3 extends inward at a constant width. As shown in FIG. 2, two projecting ribs 8 are protruded in parallel on the upper surface of the packing receiver 3. Also,
As shown in FIG. 1, recesses 11 are provided at regular intervals near the upper surface opening 5 on the peripheral surface of the container body 1. As shown in FIG. 2, the upper edge portion of the concave portion 11 has a gradient that goes down from the inside to the outside in accordance with the tip shape of the claw 12 of the lid 2 described later.
【００１７】図１に示すように、蓋体３は容器本体１と
同様の外径を有するが、容器本体１よりは浅く、且つの
内側平面寸法が容器本体１の外側平面寸法とほぼ同じに
なっている。この蓋体３は、その上面が上壁４によって
閉じられており、下面は容器本体１の上部に嵌合するた
めに開口されている。As shown in FIG. 1, the lid 3 has the same outer diameter as the container main body 1, but is shallower than the container main body 1 and the inner plane dimension is substantially the same as the outer plane dimension of the container main body 1. Has become. The upper surface of the lid 3 is closed by the upper wall 4, and the lower surface is opened to fit into the upper portion of the container body 1.
【００１８】この蓋体２の上壁４には、その中心部の周
囲に断面波形の緩衝リブ６が設けられている。この緩衝
リブ６は、蓋体の上壁４の縁から一定の距離だけ離れた
位置に扇形状に形成されており、図示の例では、外側と
内側に２条の緩衝リブ６が設けられている。図２に示す
ように、外側の緩衝リブ６は上からみて２つの連続する
凹溝を有する波状のリブからなり、内側の緩衝リブ６は
上からみて単一の凹溝を有する波状のリブからなる。The upper wall 4 of the lid 2 is provided with a buffer rib 6 having a corrugated cross section around the center thereof. The cushioning rib 6 is formed in a fan shape at a position away from the edge of the upper wall 4 of the lid by a predetermined distance. In the illustrated example, two cushioning ribs 6 are provided on the outside and the inside. I have. As shown in FIG. 2, the outer buffer rib 6 is formed of a wavy rib having two continuous concave grooves as viewed from above, and the inner buffer rib 6 is formed of a wavy rib having a single concave groove as viewed from above. Become.
【００１９】蓋体２の周壁の下縁側の内面には、一定の
間隔で爪１２が突設されている。図２に示すように、こ
の爪１２の上縁には先にいくに従って高くなるような勾
配が形成されている。図２に示すように、蓋体２を容器
本体１の上部に嵌め込んでその上面開口部７を閉じたと
き、この爪１２の先端が容器本体１の周壁の前記凹部１
１に係合し、蓋体２と容器本体１とを互いに固定する。On the inner surface on the lower edge side of the peripheral wall of the lid 2, claws 12 are protruded at regular intervals. As shown in FIG. 2, the upper edge of the claw 12 is formed with a gradient that becomes higher as it goes further. As shown in FIG. 2, when the lid 2 is fitted into the upper part of the container body 1 and the upper opening 7 is closed, the tip of the claw 12 is
1 to fix the lid 2 and the container body 1 to each other.
【００２０】蓋体２の周壁に隣接する上壁４の下面周辺
部分には、弾性を有するパッキン１３が貼られている。
図２に示すように、蓋体２を容器本体１の上部に嵌め込
んだとき、前記のパッキン１３は、蓋体２の上壁４と前
記容器本体１のパッキン受３との間に挟まれる。さら
に、蓋体２の爪１２が容器本体１の周壁の前記凹部１１
に係合した状態では、前記のパッキン１３は、蓋体２の
上壁４と前記容器本体１のパッキン受３との間に圧縮さ
れる。特に、パッキン１３はパッキン受３の上面に***
したリブ８の部分で局部的により高い圧縮率で圧縮され
る。An elastic packing 13 is attached to a peripheral portion of the lower surface of the upper wall 4 adjacent to the peripheral wall of the lid 2.
As shown in FIG. 2, when the lid 2 is fitted on the upper portion of the container body 1, the packing 13 is sandwiched between the upper wall 4 of the lid 2 and the packing receiver 3 of the container body 1. . Further, the claw 12 of the lid 2 is connected to the recess 11 of the peripheral wall of the container body 1.
The packing 13 is compressed between the upper wall 4 of the lid 2 and the packing receiver 3 of the container body 1 in the state where the packing 13 is engaged. In particular, the packing 13 is locally compressed at a higher compression ratio at the portion of the rib 8 raised on the upper surface of the packing receiver 3.
【００２１】このような容器本体１と蓋体２は、可燃物
により作るのがよい。可燃物でも、特に焼却時に有害物
質が発生する塩素系合成樹脂を使用するのは避け、でき
るだけ焼却時に有害物質が発生しないポリエチレン系等
の樹脂を使用するのが好ましい。The container body 1 and the lid 2 are preferably made of a combustible material. Even among combustible materials, it is preferable to avoid using a chlorine-based synthetic resin that generates harmful substances during incineration, and to use a polyethylene-based resin that does not generate harmful substances during incineration as much as possible.
【００２２】このような容器本体１と蓋体２とからなる
内部収納容器では、まず蓋体２の爪１２を容器本体１の
周壁の前記凹部１１から外し、蓋体２を容器本体１の上
部から外し、図１の右側のように、容器本体１の上面開
口部７を開ける。この状態で容器本体１の中に放射性廃
棄物等を収納した後、蓋体２を容器本体１の上部に嵌め
込み、容器本体１の上面開口部７を閉じる。このとき、
蓋体２の周囲に圧力を加えて嵌め込むことにより、図２
に示すように、蓋体２の爪１２が、その弾力により容器
本体１の周壁の前記凹部１１に係合し、蓋体２が容器本
体１に確実に固定される。またこの状態では、パッキン
１３が蓋体２の上壁４と前記容器本体１のパッキン受３
との間に圧縮される。特に、パッキン１３はパッキン受
３の上面に***したリブ８により強く圧縮されるので、
パッキン１３のリブ８に当たった部分が凹み、高い気密
性が得られる。In such an internal storage container comprising the container body 1 and the lid 2, first, the claws 12 of the lid 2 are removed from the recesses 11 on the peripheral wall of the container body 1, and the lid 2 is placed on the upper part of the container body 1. And opening the upper opening 7 of the container body 1 as shown on the right side of FIG. After storing radioactive waste and the like in the container body 1 in this state, the lid 2 is fitted into the upper portion of the container body 1 and the upper opening 7 of the container body 1 is closed. At this time,
As shown in FIG.
As shown in (2), the claw 12 of the lid 2 engages with the concave portion 11 of the peripheral wall of the container body 1 by its elasticity, and the lid 2 is securely fixed to the container body 1. In this state, the packing 13 is provided between the upper wall 4 of the lid 2 and the packing holder 3 of the container body 1.
Compressed between In particular, since the packing 13 is strongly compressed by the rib 8 raised on the upper surface of the packing receiver 3,
The portion of the packing 13 that contacts the rib 8 is dented, and high airtightness is obtained.
【００２３】このように容器本体１の上部に蓋体２を嵌
合した状態で内部収納容器をドラム缶等の外部容器１０
に収納する。図３に示すように、容器本体１及び蓋体２
からなる内部収納容器は、外部容器１０の内部空間を平
面において４分割し、且つ上下に２分割した形状より僅
かに小さい寸法を有するため、外部容器１０の中に上下
２段にそれぞれ４個ずつ、合計８個の内部収納容器を収
納することができる。With the lid 2 fitted on the upper portion of the container body 1, the internal container is replaced with an external container 10 such as a drum.
To be stored. As shown in FIG. 3, the container body 1 and the lid 2
Since the internal storage container made of is divided into four parts in the plane of the internal space of the external container 10 and has a size slightly smaller than the shape obtained by dividing the upper and lower parts into two parts, the inner container has four upper and lower parts in the outer container 10 , And a total of eight internal storage containers can be stored.
【００２４】このとき、内部収納容器の間にできる隙間
はごく僅かである。本件発明者らが試作した前述のよう
な内部収納容器の１個当たりの収納容積は２３．３Ｌで
あり、これが収納容積２０６Ｌのドラム缶である外部容
器１０に合計８個収納できる。この８つの内部収納容器
に収納可能な容積の総和は、２３．３Ｌ×８個＝１８
６．４Ｌとなり、ドラム缶の収納容積に対する実質的な
収納容積の比である収納効率は、９０．５％に達する。
しかも、外部容器１０に収納すべき放射性廃棄物等の収
納物を８つに分けて取り扱うことができるので、その取
り扱いも容易となる。At this time, the gap formed between the internal storage containers is very small. The storage volume per unit of the above-mentioned internal storage container prototyped by the present inventors is 23.3 L, and a total of eight storage containers can be stored in the outer container 10 which is a drum with a storage volume of 206 L. The total volume that can be stored in these eight internal storage containers is 23.3 L × 8 = 18
6.4 L, and the storage efficiency, which is the ratio of the substantial storage volume to the storage volume of the drum, reaches 90.5%.
Moreover, since the stored items such as radioactive wastes to be stored in the outer container 10 can be divided into eight and handled, the handling becomes easy.
【００２５】また、このようにして内部収納容器を外部
容器１０に収納した状態では、前述のようにして各内部
収納容器の気密性が確保できるだけでなく、蓋体２の緩
衝リブ６の外力吸収作用により、温度変化等による空気
の膨張等に伴う内部収納容器の内部気圧の変動にも確実
に対応することができる。In the state where the internal storage containers are stored in the external container 10 in this manner, not only the airtightness of each internal storage container can be ensured as described above, but also the external force of the buffer rib 6 of the lid 2 can be absorbed. By the action, it is possible to reliably cope with the fluctuation of the internal pressure of the internal storage container caused by the expansion of the air due to the temperature change or the like.
【００２６】図４は、容器本体１及び蓋体２からなる内
部収納容器が、外部容器１０の内部空間を平面において
３分割し、上下に２分割した形状より僅かに小さい寸法
を有する場合である。この場合は、外部容器１０の中に
上下２段にそれぞれ３個ずつ、合計６個の内部収納容器
を収納することができる。FIG. 4 shows a case where the internal storage container composed of the container main body 1 and the lid 2 has a size slightly smaller than a shape obtained by dividing the internal space of the external container 10 into three parts in a plane and dividing it into two parts vertically. . In this case, a total of six internal storage containers can be stored in the external container 10, three each in two upper and lower tiers.
【００２７】このときも内部収納容器の間にできる隙間
はごく僅かである。本件発明者らが試作した図４に示す
ような内部収納容器の１個当たりの収納容積は３３Ｌで
あり、これが収納容積２０６Ｌのドラム缶である外部容
器１０に合計６個収納できる。この６つの内部収納容器
に収納可能な容積の総和は、は３３Ｌ×６個＝１９８Ｌ
となり、ドラム缶の収納容積に対する実質的な収納容積
の比である収納効率は、９６．１％に達する。At this time, too, the gap formed between the internal storage containers is very small. The storage capacity per one internal storage container as shown in FIG. 4 which was prototyped by the present inventors is 33 L, which can be stored in a total of six in the outer container 10 which is a drum with a storage capacity of 206 L. The total volume that can be stored in these six internal storage containers is 33 L x 6 pieces = 198 L
The storage efficiency, which is the ratio of the substantial storage volume to the storage volume of the drum, reaches 96.1%.
【００２８】なお、以上の実施形態では、内部収納容器
が平面上で円周方向に３分割または４分割されたもの
で、上下に２段に積まれて外部容器１０に収納したもで
あるが、外部容器１０の大きさによっては、平面上で円
周方向に２分割また５分割以上されたり、或いは上下に
１段のみ或いは３段以上に積まれて外部容器１０に収納
されることもある。これらは、内部収納容器の取扱性の
最適化を考慮して適宜選択される。In the above embodiment, the internal storage container is divided into three or four in the circumferential direction on a plane, and is stacked in two stages vertically and stored in the external container 10. Depending on the size of the outer container 10, the outer container 10 may be divided into two or five or more in the circumferential direction on a plane, or may be stacked in only one step or three or more steps vertically and stored in the outer container 10. . These are appropriately selected in consideration of optimizing the handleability of the internal storage container.
【００２９】[0029]
【発明の効果】以上説明した通り、本願発明による内部
収納容器では、放射性廃棄物のドラム缶ヘの収納効率が
高く、しかも放射性廃棄物が外部に漏れない構造で、人
手による取り扱いが容易で、容器内圧の変化を吸収でき
る構造を有し、必要な強度を持った内部収納容器を得る
ことができる。また、可燃物で容器本体１と蓋体２を作
ることにより、廃棄物と共に焼却処理が可能な内部収納
容器が得られる。As described above, the internal storage container according to the present invention has a structure in which radioactive waste is efficiently stored in the drum, and has a structure in which the radioactive waste does not leak to the outside. An internal storage container having a structure capable of absorbing a change in internal pressure and having a necessary strength can be obtained. Further, by making the container body 1 and the lid 2 from a combustible material, an internal storage container that can be incinerated with waste can be obtained.
【図１】本発明の一実施形態である内部収納容器の容器
本体に蓋体を嵌め込んだ状態と蓋体を取り外した状態を
示す斜視図である。FIG. 1 is a perspective view showing a state where a lid is fitted to a container body of an internal storage container according to an embodiment of the present invention and a state where the lid is removed.
【図２】本発明の一実施形態である内部収納容器の容器
本体と蓋体との嵌合部分を示す要部拡大縦断側面図であ
る。FIG. 2 is an enlarged vertical cross-sectional side view of a main part showing a fitting portion between a container main body and a lid of the internal storage container according to one embodiment of the present invention.
【図３】本発明の一実施形態である内部収納容器をドラ
ム缶である外部容器に収納する状態の斜視図である。FIG. 3 is a perspective view showing a state where the internal storage container according to one embodiment of the present invention is stored in an external container which is a drum.
【図４】本発明の他の実施形態である内部収納容器をド
ラム缶である外部容器に収納する状態の斜視図である。FIG. 4 is a perspective view showing a state in which an internal storage container according to another embodiment of the present invention is stored in an external container which is a drum.
１ 容器本体 ２ 蓋体 ３ 容器本体のパッキン受 ４ 蓋体の上壁 ５ 容器本体の内部空間 ６ 蓋体の上壁４の緩衝リブ ７ 容器本体の上面開口部 ８ 容器本体のパッキン受のリブ １０ 外部容器 １１ 容器本体の凹部 １２ 蓋体の爪 １３ パッキン DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid 3 Packing receiving of container main body 4 Upper wall of lid 5 Internal space of container main body 6 Buffer rib of upper wall 4 of lid 7 Upper opening of container main body 8 Rib of packing receiving of container main body 10 Outer container 11 Recessed part of container body 12 Lid of lid 13 Packing
Claims (6)
る内部収納容器であって、円柱体をその中心軸を一辺と
する等角度間隔の放射方向の面で複数に分割した外面形
状を有し、内部空間（５）と上面開口部（７）とを有す
る容器本体（１）と、この容器本体（１）の上面開口部
（７）に対応した形状を有し、容器本体（１）の上部に
嵌め込んでその上面開口部（７）を閉じる蓋体（２）と
を有し、容器本体（１）に蓋体（２）を嵌合した容器
は、その複数が円柱形に円形配列されると共に、１段ま
たは複数段積み重ねられた状態で、円筒形の外部容器
（１０）に収納可能であることを特徴とする内部収納容
器。1. An internal storage container to be stored in a cylindrical external container (10), wherein a cylindrical body is divided into a plurality of parts at equal angular intervals in a radial direction having a center axis as one side. A container body (1) having an internal space (5) and an upper surface opening (7); and a container body (1) having a shape corresponding to the upper surface opening (7) of the container body (1). A lid (2) fitted to the upper part of (1) to close the upper opening (7), and a plurality of containers having the lid (2) fitted to the container body (1) are cylindrical. An internal storage container characterized in that it can be stored in a cylindrical outer container (10) in a state of being circularly arranged and stacked in one or more stages.
部の周囲に断面波形の緩衝リブ（６）が設けられている
ことを特徴とする請求項１に記載の内部収納容器。2. The interior according to claim 1, wherein the upper wall of the lid is provided with a damping rib having a corrugated cross section around its center. Storage container.
設けられ、容器本体（１）の上部外面に蓋体（２）の嵌
合時にその爪（１２）が係合する凹部（１１）が設けら
れていることを特徴とする請求項１または２に記載の内
部収納容器。3. A jaw-shaped claw (12) is provided on the inner surface of the lid (2), and the claw (12) is engaged with the upper outer surface of the container body (1) when the lid (2) is fitted. The internal storage container according to claim 1 or 2, wherein a concave portion (11) is provided.
囲から内側に鍔状のパッキン受（３）が延設され、蓋体
（２）の容器本体（１）への嵌合時に蓋体（２）の内面
の前記パッキン受（３）に当たる部分に弾性を有するパ
ッキン（１３）が貼られていることを特徴とする請求項
１〜３の何れかに記載の内部収納容器。4. A flange-shaped packing receiver (3) extends from the periphery of the upper opening (7) of the container body (1) to the inside, and fits the lid (2) to the container body (1). 4. The internal container according to claim 1, wherein an elastic packing (13) is attached to a portion of the inner surface of the lid (2) which is in contact with the packing receiver (3).
囲のパッキン受（３）に突状のリブ（８）が形成されて
いることを特徴とする請求項４に記載の内部収納容器。5. The inner part according to claim 4, wherein a projecting rib is formed in the packing receiver around the upper surface opening of the container body. Storage container.
からなることを特徴とする請求項５に記載の内部収納容
器。6. The internal container according to claim 5, wherein the container body (1) and the lid (2) are made of a combustible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11226658A JP2001051095A (en) | 1999-08-10 | 1999-08-10 | Inner containing vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11226658A JP2001051095A (en) | 1999-08-10 | 1999-08-10 | Inner containing vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001051095A true JP2001051095A (en) | 2001-02-23 |
Family
ID=16848637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11226658A Pending JP2001051095A (en) | 1999-08-10 | 1999-08-10 | Inner containing vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001051095A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112053A1 (en) * | 2003-06-12 | 2004-12-23 | Rolls-Roycs Marine Power Operations Limited | A container for a fissile material and a method of making the same |
| JP2010507791A (en) * | 2006-10-26 | 2010-03-11 | アレヴァ・エヌセー | Radioactive waste storage container |
| CN102959640A (en) * | 2010-06-25 | 2013-03-06 | Tn国际公司 | Container for transporting and/or storing radioactive materials |
-
1999
- 1999-08-10 JP JP11226658A patent/JP2001051095A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004112053A1 (en) * | 2003-06-12 | 2004-12-23 | Rolls-Roycs Marine Power Operations Limited | A container for a fissile material and a method of making the same |
| JP2006527377A (en) * | 2003-06-12 | 2006-11-30 | ロールス−ロイス・マリン・パワー・オペレイションズ・リミテッド | Fissile material container and manufacturing method thereof |
| US7372060B2 (en) | 2003-06-12 | 2008-05-13 | Rolls-Royce Plc | Container for fissile material and a method of making the same |
| JP2011174938A (en) * | 2003-06-12 | 2011-09-08 | Rolls-Royce Marine Power Operations Ltd | Container for fissile material and method of making the same |
| JP2010507791A (en) * | 2006-10-26 | 2010-03-11 | アレヴァ・エヌセー | Radioactive waste storage container |
| CN102959640A (en) * | 2010-06-25 | 2013-03-06 | Tn国际公司 | Container for transporting and/or storing radioactive materials |
| JP2013536405A (en) * | 2010-06-25 | 2013-09-19 | テーエヌ・アンテルナシオナル | Container for transport and / or storage of radioactive material |
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