JP2023005218A - Pallet for drum can - Google Patents

Pallet for drum can Download PDF

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JP2023005218A
JP2023005218A JP2021106991A JP2021106991A JP2023005218A JP 2023005218 A JP2023005218 A JP 2023005218A JP 2021106991 A JP2021106991 A JP 2021106991A JP 2021106991 A JP2021106991 A JP 2021106991A JP 2023005218 A JP2023005218 A JP 2023005218A
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deck plate
drum
opening
plate
pallet
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JP6979734B1 (en
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洋伸 小野
Hironobu Ono
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Kanto Giken Co Ltd
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Kanto Giken Co Ltd
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    • 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

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Abstract

To provide a pallet for a drum can that secures strength for receiving the load of the drum can while securing openings for checking upper and lower surfaces of the drum can containing radioactive waste.SOLUTION: A pallet for a drum can includes: an upper deck plate having a circular upper opening; a lower deck plate having a lower opening and placed to face the upper deck plate; gateposts interposed at four corners of the upper deck plate and the lower deck plate in order to secure a space between them; middle pillars placed between the gateposts at both ends so that two insertion holes are formed on each side of the upper and lower deck plates; right reinforcing members attached to a lower surface of the upper deck plate in order to reinforce between the gateposts and the right-adjacent middle pillars when the upper opening is viewed from the gateposts; and left reinforcing members attached to the lower surface of the upper deck plate in order to reinforce between the gateposts and the left-adjacent middle pillars.SELECTED DRAWING: Figure 1

Description

本発明は、放射性廃棄物を収納したドラム缶を載置して保管するためのドラム缶用パレットに関する。 The present invention relates to a drum pallet for placing and storing drums containing radioactive waste.

原子力発電所などの施設において発生した使用済み防護服などの放射性廃棄物は、ドラム缶などの廃棄物容器に入れて保管される。廃棄物容器は、金属製のパレットに載置して運搬及び保管される。ドラム缶の場合、１台のパレットに１つ又は４つ載せられる。廃棄物容器は、縦横に並べられ、さらにパレットを介して複数段に重ねられる。 Radioactive waste such as used protective clothing generated in facilities such as nuclear power plants is stored in waste containers such as drums. Waste containers are transported and stored on metal pallets. In the case of drums, one or four cans are placed on one pallet. The waste containers are arranged lengthwise and breadthwise, and stacked in multiple stages via pallets.

廃棄物容器を長期間保管していると容器内の水分が結露する等して容器の底や蓋に水滴が付着し、そこから腐食が進んで空いた孔から放射性物質が外に漏洩するおそれがある。そのため、パレットに開口部を設けて、廃棄物容器の上下面などをカメラ等で撮影して腐食の状況などを確認している。 If the waste container is stored for a long period of time, the moisture inside the container will condense, causing water droplets to adhere to the bottom and lid of the container, which will then become corroded, creating holes that may allow radioactive materials to leak outside. There is Therefore, an opening is provided in the pallet, and the top and bottom surfaces of the waste container are photographed with a camera or the like to confirm the state of corrosion.

特許文献１に記載されているように、放射性廃棄物が収納されている廃棄物容器が大量に並置されている場合でも、廃棄物容器の腐食を推測して放射性物質の漏洩を予防する放射性廃棄物容器検査設備の発明も開示されている。 As described in Patent Document 1, even when a large number of waste containers containing radioactive waste are placed side by side, the radioactive waste prevents leakage of radioactive materials by estimating corrosion of the waste containers. An invention for container inspection equipment is also disclosed.

特許第６６９５５８０号公報Japanese Patent No. 6695580

しかしながら、廃棄物容器の確認範囲を広くするためにパレットの開口部を大きくすると、廃棄物容器の荷重を受け止める部分が小さくなる。円筒状のドラム缶の場合は、廃棄物の入れ方により荷重がバラつくこともあるが、パレットにフォークリフトで移動させる際にツメを差し込む孔が空いているため、強度が弱くなる部分が存在する。 However, if the opening of the pallet is enlarged to increase the viewing range of the waste container, the load-bearing area of the waste container becomes smaller. In the case of cylindrical drums, the load may vary depending on how the waste is put in, but there are parts where the strength is weakened because there are holes into which the claws are inserted when the drum is moved to the pallet by a forklift.

そこで、本発明は、放射性廃棄物を収納したドラム缶の上下面を確認するための開口部を確保しつつドラム缶の荷重を受けるための強度を確保したドラム缶用パレットを提供することを目的とする。 Therefore, an object of the present invention is to provide a pallet for drums that secures strength for receiving the load of the drums while securing openings for checking the upper and lower surfaces of the drums containing radioactive waste.

上記の課題を解決するために、本発明であるドラム缶用パレットは、円形の上開口部が空けられた上デッキプレートと、下開口部が空けられ前記上デッキプレートと対向するように配置された下デッキプレートと、前記上デッキプレートと前記下デッキプレートとの間に空間を確保するためにそれらの四隅に介在させた門柱と、前記上下デッキプレートの各辺に２つの差込孔が形成されるように両端の前記門柱の間に配置された中柱と、前記門柱から前記上開口部を見たときに右隣の前記中柱との間を補強するために前記上デッキプレートの下面に取り付けられた右補強材と、前記門柱の左隣の前記中柱との間を補強するために前記上デッキプレートの下面に取り付けられた左補強材と、を有し、前記左右補強材の内側板と前記中柱の内側壁とが前記上開口部を十二角形状に囲むように配置された、ことを特徴とする。 In order to solve the above problems, the drum pallet of the present invention comprises an upper deck plate having a circular upper opening, and a lower opening having a lower opening arranged so as to face the upper deck plate. A lower deck plate, gateposts interposed at the four corners of the upper deck plate and the lower deck plate to secure a space between them, and two insertion holes are formed on each side of the upper and lower deck plates. on the lower surface of the upper deck plate to reinforce the space between the central pillars arranged between the gate pillars at both ends and the central pillar on the right side when the upper opening is viewed from the gate pillars. and a left reinforcing member attached to the lower surface of the upper deck plate to reinforce the space between the left and right central pillars of the gatepost, and the inner side of the left and right reinforcing members. It is characterized in that the plate and the inner wall of the middle pillar are arranged so as to surround the upper opening in a dodecagonal shape.

前記ドラム缶用パレットにおいて、前記上デッキプレートは、上面に前記上開口部の縁にドラム缶を載置可能に押さえるガイドが設けられ、前記左右補強材の内側板及び前記中柱の内側壁の位置が、前記上開口部と前記ガイドの間に収まる、ことを特徴とする。 In the drum pallet, the upper deck plate is provided with a guide on the upper surface for holding down the drum so that it can be placed on the edge of the upper opening, and the positions of the inner plates of the left and right reinforcing members and the inner walls of the central pillars are , and is fitted between the upper opening and the guide.

前記ドラム缶用パレットにおいて、前記右補強材と前記左補強材とは、左右対称の五角形状の板材であり、各辺の側板を上方に折り曲げて丸みを形成し、前記上デッキプレートよりも下側へ出るように取り付けられる、ことを特徴とする。 In the drum pallet, the right reinforcing member and the left reinforcing member are symmetrical pentagonal plate members, and the side plates on each side are bent upward to form roundness, and are positioned below the upper deck plate. It is characterized in that it is attached so as to protrude out.

前記ドラム缶用パレットにおいて、前記下デッキプレートは、前記上デッキプレートよりも大きいサイズであり、側面の強度を維持するとともに、ドラム缶の上に被せる際の位置決め用にテーパ部が形成された端材を有する、ことを特徴とする。 In the drum pallet, the lower deck plate has a size larger than the upper deck plate, maintains the strength of the side surface, and includes scraps having a tapered portion for positioning when the drum is covered. characterized by having

前記ドラム缶用パレットにおいて、前記差込孔は、前記上開口部又は前記下開口部からドラム缶を撮影する手段を通過可能に設けられる、ことを特徴とする。 In the drum pallet, the insertion hole is provided so as to allow passage of means for photographing the drum from the upper opening or the lower opening.

本発明によれば、放射性廃棄物を収納したドラム缶の上下面を確認するための開口部を確保しつつドラム缶の荷重を受けるための強度を確保することができる。また、パレットにツメを差し込む孔を確保しつつバランス良く補強材を配置しており、ドラム缶の荷重が部分的に集中したとしても安定して載置することができる。 ADVANTAGE OF THE INVENTION According to this invention, the strength for receiving the load of a drum can be ensured, ensuring the opening for confirming the upper-lower surface of the drum which accommodated radioactive waste. In addition, the reinforcement members are arranged in a well-balanced manner while ensuring holes for inserting the claws into the pallet, so that even if the load of the drum is partially concentrated, the drum can be placed stably.

本発明であるドラム缶用パレットを示す斜視図である。1 is a perspective view showing a drum pallet according to the present invention; FIG. 本発明であるドラム缶用パレットを示す平面図である。1 is a plan view showing a drum pallet according to the present invention; FIG. 本発明であるドラム缶用パレットを示す正面図である。It is a front view which shows the pallet for drums which is this invention. 本発明であるドラム缶用パレットのＡ－Ａで切断した断面図である。1 is a cross-sectional view of a pallet for drums according to the present invention cut along line AA. FIG. 本発明であるドラム缶用パレットのＢ－Ｂで切断した断面図である。FIG. 2 is a cross-sectional view of the pallet for drums according to the present invention taken along line BB. 本発明であるドラム缶用パレットの補強材の六面図である。FIG. 4 is a six-sided view of a reinforcing material for a drum pallet according to the present invention. 本発明であるドラム缶用パレットの補強材の形状を説明する図である。It is a figure explaining the shape of the reinforcing material of the pallet for drums which is this invention. 本発明であるドラム缶用パレットの載置部を説明する平面図である。It is a top view explaining the mounting part of the pallet for drums which is this invention. 本発明であるドラム缶用パレットの使用状態を示す図である。It is a figure which shows the use condition of the pallet for drums which is this invention.

以下に、本発明の実施形態について図面を参照して詳細に説明する。なお、同一機能を有するものは同一符号を付け、その繰り返しの説明は省略する場合がある。 BEST MODE FOR CARRYING OUT THE INVENTION Below, embodiments of the present invention will be described in detail with reference to the drawings. Components having the same function are denoted by the same reference numerals, and repeated description may be omitted.

まず、本発明であるドラム缶用パレットの構造について説明する。図１は、ドラム缶用パレットを示す斜視図である。図２は、ドラム缶用パレットを示す平面図である。図３は、ドラム缶用パレットを示す正面図である。図４は、ドラム缶用パレットの（ａ）Ａ－Ａで切断した断面図及び（ｂ）一部の拡大図である。図５は、ドラム缶用パレットのＢ－Ｂで切断した断面図である。 First, the structure of the drum pallet according to the present invention will be described. FIG. 1 is a perspective view showing a drum pallet. FIG. 2 is a plan view showing a drum pallet. FIG. 3 is a front view showing a drum pallet. FIG. 4 is (a) a cross-sectional view taken along line AA and (b) a partially enlarged view of the drum pallet. FIG. 5 is a cross-sectional view of the drum pallet taken along line BB.

図１に示すように、ドラム缶用パレット１００は、円形の上開口部２１０が空けられた上デッキプレート２００、及び下開口部３１０が空けられ上デッキプレート２００と対向するように配置された下デッキプレート３００を有する。 As shown in FIG. 1, the drum pallet 100 includes an upper deck plate 200 having a circular upper opening 210 and a lower deck having a lower opening 310 and facing the upper deck plate 200. It has a plate 300 .

図２に示すように、上デッキプレート２００は、矩形状（略正方形状）の金属板であり、四辺の縁は下方に折り曲げられる。上デッキプレート２００の上に円筒状のドラム缶１１０を載せられるように、縁状に載置部２３０を残して中央を打ち抜いて上開口部２１０を形成すれば良い。上開口部２１０を通してドラム缶１１０の下面を下方から視認可能である。 As shown in FIG. 2, the upper deck plate 200 is a rectangular (substantially square) metal plate with four edges bent downward. The upper opening 210 may be formed by punching out the center of the upper deck plate 200 so that the cylindrical drum can 110 can be placed thereon, leaving the mounting portion 230 on the edge. The lower surface of the drum can 110 can be viewed from below through the upper opening 210 .

ドラム缶１１０を上デッキプレート２００の載置部２３０に載せたとき、ドラム缶１１０の位置がずれないように、載置部２３０を囲むようにガイド２２０を設けても良い。ガイド２２０は、金属板を環状に曲げて上デッキプレート２００の上に突出するように固着すれば良い。 A guide 220 may be provided to surround the mounting portion 230 of the upper deck plate 200 so that the drum 110 is not displaced when the drum 110 is mounted on the mounting portion 230 of the upper deck plate 200 . The guide 220 may be formed by bending a metal plate into an annular shape and fixing it so as to protrude above the upper deck plate 200 .

下デッキプレート３００は、上デッキプレート２００と同様に矩形状の金属板であり、四辺の縁は下方に折り曲げられる。下デッキプレート３００は、上デッキプレート２００よりも縦と横を長くした大きいサイズであるが、下開口部３１０は、上開口部２１０と同じ径で空ければ良い。下開口部３１０を通してドラム缶１１０の上面を上方から視認可能である。 The lower deck plate 300 is a rectangular metal plate similar to the upper deck plate 200, and has four edges bent downward. The lower deck plate 300 is longer in length and width than the upper deck plate 200 and has a larger size. The upper surface of the drum 110 can be viewed from above through the lower opening 310 .

図３に示すように、ドラム缶用パレット１００は、上デッキプレート２００と下デッキプレート３００との間に空間を確保するためにそれらの四隅に介在させた門柱４００、上デッキプレート２００及び下デッキプレート３００の各辺に２つの差込孔４２０が形成されるように両端の門柱４００の間に配置された中柱４１０（４１０ａ、４１０ｂ）を有する。 As shown in FIG. 3, the drum pallet 100 includes gateposts 400 interposed at four corners to secure a space between the upper deck plate 200 and the lower deck plate 300, the upper deck plate 200 and the lower deck plate. It has middle pillars 410 (410a, 410b) arranged between gate pillars 400 at both ends so that two insertion holes 420 are formed on each side of 300 .

門柱４００は、金属板を断面が正方形の角パイプ状に曲げたもので、上部は上デッキプレート２００の折り曲げた縁の角に掛け、下面は下デッキプレート３００の隅に載せて溶接等により固着させれば良い。 The gate post 400 is made by bending a metal plate into a rectangular pipe shape with a square cross section. Let it be.

図４（ａ）に示すように、中柱４１０は、金属板を断面が長方形（短辺は門柱４００と同じ長さ）の角パイプ状に曲げたもので、上部は上デッキプレート２００の折り曲げた縁の中央部に掛け、下面は下デッキプレート３００の端の中央部に載せて溶接等により固着させれば良い。 As shown in FIG. 4( a ), the middle pillar 410 is a metal plate bent into a square pipe shape having a rectangular cross section (the short side is the same length as the gate pillar 400 ), and the upper deck plate 200 is bent. The lower deck plate 300 may be placed on the center of the edge of the lower deck plate 300 and fixed by welding or the like.

差込孔４２０は、門柱４００と中柱４１０の間の空洞であり、フォークリフトのツメを差し込んでドラム缶用パレット１００を持ち上げ移動させる際に使用される。なお、差込孔４２０には、カメラを搭載させて遠隔操作可能な小型車両など、上開口部２１０又は下開口部３１０からドラム缶１１０の下面又は上面を撮影する手段を通過させても良い。 The insertion hole 420 is a cavity between the gate post 400 and the center post 410, and is used when the claws of a forklift are inserted to lift and move the drum pallet 100. As shown in FIG. It should be noted that the insertion hole 420 may be used to pass a means for photographing the bottom or top surface of the drum can 110 from the top opening 210 or the bottom opening 310 , such as a small vehicle equipped with a camera that can be operated remotely.

図４（ｂ）に示すように、下デッキプレート３００は、側面の強度を維持するとともに、ドラム缶１１０の上に被せる際の位置決め用にテーパ部３４０が形成された端材３３０を有する。 As shown in FIG. 4(b), the lower deck plate 300 has end members 330 formed with tapered portions 340 for positioning when covering the drum can 110 while maintaining the strength of the side surfaces.

端材３３０は、下デッキプレート３００の側面に沿って、下デッキプレート３００の折り曲げた縁の内側に収まるように配置される。端材３３０は、金属板を断面が略コ状に折り曲げたもので、下デッキプレート３００の側面に何か当たって破損しても支持能力が維持される。 The offcut 330 is arranged along the side surface of the lower deck plate 300 so as to fit inside the bent edge of the lower deck plate 300 . The edge member 330 is a metal plate bent into a substantially U-shaped cross section, and maintains its supporting ability even if it hits the side surface of the lower deck plate 300 and is damaged.

また、上デッキプレート２００のガイド２２０と同様に、ドラム缶１１０の位置が下デッキプレート３００の中央に来るように、端材３３０のテーパ部３４０で誘導する。なお、端材３３０は、門柱４００及び中柱４１０が載る位置を補強するが、下開口部３１０の縁まで達しなければ良い。 Also, like the guides 220 of the upper deck plate 200 , the drums 110 are guided by the tapered portions 340 of the end members 330 so that the position of the drum cans 110 comes to the center of the lower deck plate 300 . The edge material 330 reinforces the position where the gate post 400 and the middle post 410 are placed, but it is sufficient if the end material 330 does not reach the edge of the lower opening 310 .

図５に示すように、ドラム缶用パレット１００は、門柱４００から上開口部２１０を見たときに右隣の中柱４１０ａとの間（差込孔４２０のある位置）を補強するために上デッキプレート２００の下面に取り付けられた右補強材５００、及び門柱４００の左隣の中柱４１０ｂとの間を補強するために上デッキプレート２００の下面に取り付けられた左補強材５１０を有する。 As shown in FIG. 5, the drum pallet 100 has an upper deck to reinforce the space between the pallet 100 and the central pillar 410a on the right when the upper opening 210 is viewed from the gatepost 400 (the position of the insertion hole 420). It has a right reinforcing member 500 attached to the lower surface of the plate 200 and a left reinforcing member 510 attached to the lower surface of the upper deck plate 200 to reinforce the space between the gate post 400 and the center post 410b on the left side.

例えば、図５における左下の門柱４００の場合、門柱４００の右側に五角形状の右補強材５００が取り付けられ、門柱４００の上側に右補強材５００と対称形状の左補強材５１０が右補強材５００と隣接するように取り付けられる。 For example, in the case of the lower left gatepost 400 in FIG. is mounted adjacent to the

次に、本発明であるドラム缶用パレットの補強材について説明する。図６は、ドラム缶用パレットの補強材の六面図である。図７は、ドラム缶用パレットの補強材の（ａ）斜視図及び（ｂ）形状を説明する図である。図８は、ドラム缶用パレットの載置部を説明する平面図である。 Next, the reinforcing material for the drum pallet according to the present invention will be described. FIG. 6 is a six-sided view of the reinforcing member of the drum pallet. FIG. 7 is (a) a perspective view and (b) a diagram for explaining the shape of the reinforcing member of the drum pallet. FIG. 8 is a plan view for explaining the mounting portion of the drum pallet.

図６及び図７（ａ）に示すように、右補強材５００の場合、五角形の底板５２０の各辺から垂立するように、内側板５３０、隣側板５４０、門側板５５０、中側板５６０、及び外側板５７０を設ける。なお、底板５２０の各辺において垂直に折曲加工し、隣接する各側板同士を溶接などで連結すれば良い。 As shown in FIGS. 6 and 7( a ), in the case of the right reinforcing member 500 , the inner plate 530 , the adjacent side plate 540 , the gate side plate 550 , the middle side plate 560 , and an outer plate 570 are provided. It should be noted that each side of the bottom plate 520 may be vertically bent, and adjacent side plates may be connected by welding or the like.

内側板５３０は上開口部２１０に沿って配置され、隣側板５４０は左補強材５１０と接するように配置され、門側板５５０は門柱４００と接するように配置され、中側板５６０は中柱４１０と接するように配置され、外側板５７０は差込孔４２０に沿って配置される。なお、左補強材５１０は、右補強材５００と左右対称の五角形状の板材のため同様となる。 The inner side plate 530 is arranged along the upper opening 210 , the adjacent side plate 540 is arranged so as to be in contact with the left reinforcing member 510 , the gate side plate 550 is arranged so as to be in contact with the gate post 400 , and the middle side plate 560 is arranged in contact with the middle post 410 . Arranged in contact, the outer plate 570 is arranged along the insertion hole 420 . Note that the left reinforcing member 510 is the same as the right reinforcing member 500 because it is a pentagonal plate member that is bilaterally symmetrical.

各側板は、底板５２０の各辺の側板を上方に折り曲げて丸み５８０を形成する。右補強材５００及び左補強材５１０は、空いた上面側が上デッキプレート２００の下面に溶接などにより接続される。 Each side plate forms a roundness 580 by bending upward the side plate on each side of the bottom plate 520 . The right reinforcing member 500 and the left reinforcing member 510 are connected to the lower surface of the upper deck plate 200 by welding or the like at the empty upper surface sides.

このとき、図３に示すように、差込孔４２０から内部を見たときに、丸み５８０を有する右補強材５００及び左補強材５１０が、上デッキプレート２００の縁よりも下側へ出るように取り付けられる。差込孔４２０に作業者が手などを差し入れたときや、撮影手段が通過するときに、丸み５８０によって上デッキプレート２００の縁（切断面に残ったバリなど）で傷つくことが防止される。また、内側板５３０と隣側板５４０の間の頂角に向かって、差込孔４２０から入った撮影手段が直進するように案内させても良い。 At this time, as shown in FIG. 3, the right reinforcing member 500 and the left reinforcing member 510 having roundnesses 580 protrude below the edge of the upper deck plate 200 when viewed from the insertion hole 420. can be attached to When an operator inserts his or her hand into the insertion hole 420 or when the photographing means passes, the roundness 580 prevents the edge of the upper deck plate 200 (such as burrs remaining on the cut surface) from being damaged. Further, the photographing means entering from the insertion hole 420 may be guided to go straight toward the vertical angle between the inner plate 530 and the adjacent side plate 540 .

図７（ｂ）に示すように、右補強材５００は、内側板５３０が中柱４１０の内側壁４３０と同じ長さで１５０度の角度となっており、右補強材５１０の内側板５３０とも１５０度の角度となることが好ましい。 As shown in FIG. 7B, the right reinforcing member 500 has an inner plate 530 that has the same length as the inner wall 430 of the center post 410 and is angled at 150 degrees. An angle of 150 degrees is preferred.

図８に示すように、右補強材５００及び左補強材５１０の内側板５３０と中柱４１０の内側壁４３０とが上開口部２１０を十二角形状に囲むように配置される。また、右補強材５００及び左補強材５１０の内側板５３０及び中柱４１０の内側壁４３０の位置が、上開口部２１０とガイド２２０の間に収まる。ガイド２２０の内壁に沿ってドラム缶１１０の外周が当接して、ドラム缶１１０が載置部２３０に載るので、ドラム缶１１０の外周より内側で支持されれば良い。 As shown in FIG. 8 , the inner plates 530 of the right reinforcing member 500 and the left reinforcing member 510 and the inner wall 430 of the central pillar 410 are arranged to surround the upper opening 210 in a dodecagonal shape. In addition, the positions of the inner plates 530 of the right reinforcing member 500 and the left reinforcing member 510 and the inner wall 430 of the center post 410 are located between the upper opening 210 and the guide 220 . Since the outer circumference of the drum 110 abuts along the inner wall of the guide 220 and the drum 110 is placed on the mounting portion 230, the drum 110 may be supported inside the outer circumference.

補強材が弧状ではなく、十二角形の線状の板材（内側板５３０及び内側壁４３０）で支持しているので湾曲しづらい。また、四隅の門柱４００から開口部中央に向かって右補強材５００と左補強材５１０の間の隣側板５４０によって対角状に補強される。中柱４１０の横側壁４４０や門柱４００に延びる板材（隣側板５４０）が開口部から放射状に出て支持しているので、さらに強度が向上する。 Since the reinforcing material is not arc-shaped but is supported by dodecagonal linear plate members (inner plate 530 and inner wall 430), it is difficult to bend. In addition, it is diagonally reinforced by adjacent side plates 540 between the right reinforcing member 500 and the left reinforcing member 510 toward the center of the opening from the gateposts 400 at the four corners. Since the lateral side wall 440 of the middle pillar 410 and the plate member (neighboring side plate 540) extending to the gatepost 400 protrude radially from the opening and support it, the strength is further improved.

次に、本発明であるドラム缶用パレットの使用について説明する。図９は、ドラム缶用パレットの使用状態を示す図である。 Next, use of the drum pallet of the present invention will be described. FIG. 9 is a diagram showing how the drum pallet is used.

図９に示すように、ガイド２２０に合わせてドラム缶用パレット１００の上にドラム缶１１０を載せ、さらに、端材３３０に合わせてドラム缶１１０の上に別のドラム缶用パレット１００を載せる。それを数段繰り返し、さらに縦横（前後左右）に並べて保管すれば良い。 As shown in FIG. 9, the drum 110 is placed on the drum pallet 100 in alignment with the guide 220 , and another drum pallet 100 is placed on the drum 110 in alignment with the scrap 330 . You can repeat this process several times, and then arrange them vertically and horizontally (front, back, left, and right) for storage.

ドラム缶用パレット１００は、上開口部２１０及び下開口部３１０が空いており、差込孔４２０から上側のドラム缶１１０の下面と、下側のドラム缶１１０の上面の腐食状況などを確認可能である。上開口部２１０を広くすると載置部２３０が狭くなるが、右補強材５００及び左補強材５１０があることでドラム缶用パレット１００の強度は保持される。 The drum pallet 100 has an upper opening 210 and a lower opening 310, and through the insertion hole 420, it is possible to check the state of corrosion of the lower surface of the upper drum 110 and the upper surface of the lower drum 110. When the upper opening 210 is widened, the mounting portion 230 is narrowed, but the strength of the drum pallet 100 is maintained by the presence of the right reinforcing member 500 and the left reinforcing member 510 .

本発明によれば、放射性廃棄物を収納したドラム缶の上下面を確認するための開口部を確保しつつドラム缶の荷重を受けるための強度を確保することができる。また、パレットにツメを差し込む孔を確保しつつバランス良く補強材を配置しており、ドラム缶の荷重が部分的に集中したとしても安定して載置することができる。 ADVANTAGE OF THE INVENTION According to this invention, the strength for receiving the load of a drum can be ensured, ensuring the opening for confirming the upper-lower surface of the drum which accommodated radioactive waste. In addition, the reinforcement members are arranged in a well-balanced manner while ensuring holes for inserting the claws into the pallet, so that even if the load of the drum is partially concentrated, the drum can be placed stably.

以上、本発明の実施例を述べたが、これらに限定されるものではない。例えば、パレットを介してドラム缶を複数段に重ねた場合に、ツメを差し込む孔を通路としてカメラを搭載した小型の車両を遠隔操作で走行させ、上側のドラム缶の下面および下側のドラム缶の上面を撮影しても良い。 Although the embodiments of the present invention have been described above, the present invention is not limited to these. For example, when drums are stacked on a pallet in multiple layers, a small vehicle equipped with a camera is remotely operated using the hole for inserting the claws as a passageway, and the bottom surface of the upper drum can and the top surface of the lower drum can are moved. You can take pictures.

１００：ドラム缶用パレット
１１０：ドラム缶
２００：上デッキプレート
２１０：上開口部
２２０：ガイド
２３０：載置部
３００：下デッキプレート
３１０：下開口部
３２０：側面
３３０：端材
３４０：テーパ部
３５０：開口面
４００：門柱
４１０：中柱
４２０：差込孔
４３０：内側壁
４４０：横側壁
５００：右補強材
５１０：左補強材
５２０：底板
５３０：内側板
５４０：隣側板
５５０：門側板
５６０：中側板
５７０：外側板
５８０：丸み 100: Pallet for drums 110: Drums 200: Upper deck plate 210: Upper opening 220: Guide 230: Mounting part 300: Lower deck plate 310: Lower opening 320: Side 330: End material 340: Tapered part 350: Opening Surface 400: Gatepost 410: Middle pillar 420: Insertion hole 430: Inner wall 440: Lateral wall 500: Right reinforcing material 510: Left reinforcing material 520: Bottom plate 530: Inner plate 540: Neighboring side plate 550: Gate side plate 560: Middle side plate 570: Outer plate 580: Roundness

Claims (5)

円形の上開口部が空けられた上デッキプレートと、
下開口部が空けられ前記上デッキプレートと対向するように配置された下デッキプレートと、
前記上デッキプレートと前記下デッキプレートとの間に空間を確保するためにそれらの四隅に介在させた門柱と、
前記上下デッキプレートの各辺に２つの差込孔が形成されるように両端の前記門柱の間に配置された中柱と、
前記門柱から前記上開口部を見たときに右隣の前記中柱との間を補強するために前記上デッキプレートの下面に取り付けられた右補強材と、
前記門柱の左隣の前記中柱との間を補強するために前記上デッキプレートの下面に取り付けられた左補強材と、を有し、
前記左右補強材の内側板と前記中柱の内側壁とが前記上開口部を十二角形状に囲むように配置された、
ことを特徴とするドラム缶用パレット。 an upper deck plate having a circular upper opening;
a lower deck plate having a lower opening and arranged to face the upper deck plate;
gateposts interposed at the four corners of the upper deck plate and the lower deck plate to secure a space between them;
a middle pillar disposed between the gate pillars at both ends so that two insertion holes are formed on each side of the upper and lower deck plates;
a right reinforcing member attached to the lower surface of the upper deck plate to reinforce the space between the upper opening and the center pillar on the right side when the upper opening is viewed from the gatepost;
a left reinforcing member attached to the lower surface of the upper deck plate to reinforce the space between the gatepost and the center post on the left side of the gatepost;
The inner plates of the left and right reinforcing members and the inner walls of the central pillar are arranged to surround the upper opening in a dodecagonal shape,
A drum pallet characterized by: 前記上デッキプレートは、上面に前記上開口部の縁にドラム缶を載置可能に押さえるガイドが設けられ、
前記左右補強材の内側板及び前記中柱の内側壁の位置が、前記上開口部と前記ガイドの間に収まる、
ことを特徴とする請求項１に記載のドラム缶用パレット。 The upper deck plate is provided with a guide on the upper surface for holding down the drum so that it can be placed on the edge of the upper opening,
the positions of the inner plates of the left and right reinforcing members and the inner walls of the central pillar are positioned between the upper opening and the guide;
The drum pallet according to claim 1, characterized by: 前記右補強材と前記左補強材とは、左右対称の五角形状の板材であり、各辺の側板を上方に折り曲げて丸みを形成し、前記上デッキプレートよりも下側へ出るように取り付けられる、
ことを特徴とする請求項１又は２に記載のドラム缶用パレット。 The right reinforcing member and the left reinforcing member are symmetrical pentagonal plate members, and the side plates on each side are bent upward to form roundness, and are attached so as to protrude below the upper deck plate. ,
The drum pallet according to claim 1 or 2, characterized in that: 前記下デッキプレートは、前記上デッキプレートよりも大きいサイズであり、側面の強度を維持するとともに、ドラム缶の上に被せる際の位置決め用にテーパ部が形成された端材を有する、
ことを特徴とする請求項１乃至３の何れか一に記載のドラム缶用パレット。 The lower deck plate is larger in size than the upper deck plate, maintains the strength of the side surface, and has an end member with a tapered portion for positioning when covering the drum can.
The drum pallet according to any one of claims 1 to 3, characterized in that: 前記差込孔は、前記上開口部又は前記下開口部からドラム缶を撮影する手段を通過可能に設けられる、
ことを特徴とする請求項１乃至４の何れか一に記載のドラム缶用パレット。 The insertion hole is provided so that means for photographing the drum can pass through from the upper opening or the lower opening.
The drum pallet according to any one of claims 1 to 4, characterized in that:
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