JPH04161894A - Fixing structure for fuel assembly to transportation cask - Google Patents
Fixing structure for fuel assembly to transportation caskInfo
- Publication number
- JPH04161894A JPH04161894A JP2289376A JP28937690A JPH04161894A JP H04161894 A JPH04161894 A JP H04161894A JP 2289376 A JP2289376 A JP 2289376A JP 28937690 A JP28937690 A JP 28937690A JP H04161894 A JPH04161894 A JP H04161894A
- Authority
- JP
- Japan
- Prior art keywords
- fuel assembly
- cross frame
- container
- lower container
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 65
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000001105 regulatory effect Effects 0.000 description 11
- 230000000630 rising effect Effects 0.000 description 9
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 2
- 235000001270 Allium sibiricum Nutrition 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000003100 immobilizing effect Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Buffer Packaging (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は輸送容器への燃料集合体取り付け構造に関する
。DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a structure for attaching a fuel assembly to a transportation container.
「従来の技術」
従来、原子炉用燃料集合体を輸送する場合には、第８図
に示すように、軟綱板から形成された両端が閉塞された
半割円筒状の下部容器ｌとこの下部容器１にカムロック
ボルト２により締め付け固定される上Ｉ３とからなる輸
送容器４内に、この輸送容器４内に設けられたマウント
、マウントフレーム（図示せず）、固定用枠部材５，６
を介して並列状に２体の燃料集合体７．７が収納され、
燃料集合体７の各支持格子に対向してそれぞれ緩衝部材
８ａを有するプレッシャーパッド８が当テカわれ、−ご
れらのプレッシャーパッド８を介して輸送容器４に燃料
集合体７が固定され、この状態で輸送容器４と共に燃料
集合体７，７が輸送されている。``Prior Art'' Conventionally, when transporting fuel assemblies for nuclear reactors, as shown in FIG. A mount, a mount frame (not shown), and a fixing frame member 5, 6 are provided inside the transport container 4, which consists of an upper I3 that is tightened and fixed to the lower container 1 by a cam lock bolt 2.
Two fuel assemblies 7.7 are stored in parallel through the
Pressure pads 8 each having a buffer member 8a are applied to each support grid of the fuel assembly 7, and the fuel assembly 7 is fixed to the transport container 4 via these pressure pads 8. The fuel assemblies 7, 7 are being transported together with the transport container 4 in this state.
「発明が解決しようとする課題」
ところが、前記従来の輸送容器への燃料集合体の取り付
け構造においては、輸送容器４への燃料集合体７の固定
に支持格子の数のプレッシャーパッド８を使用している
ため、これらプレッシャーパッド８の取り付け、取り外
しに手間がががり面倒であるという問題があった。``Problems to be Solved by the Invention'' However, in the conventional structure for attaching a fuel assembly to a transport container, pressure pads 8 as many as support grids are used to fix the fuel assembly 7 to the transport container 4. Therefore, there is a problem that attachment and detachment of these pressure pads 8 is time consuming and troublesome.
本発明は、従来の輸送容器への燃料集合体取り付け構造
がもつ以上のような問題点を解決した輸送容器への燃料
集合体取り付け構造を提供することを目的とする。SUMMARY OF THE INVENTION An object of the present invention is to provide a structure for attaching a fuel assembly to a transport container that solves the above-mentioned problems of the conventional structure for attaching a fuel assembly to a transport container.
「課題を解決するための手段」 −本発明は前
記目的を達成させるために次のような構成としている。"Means for Solving the Problems" - The present invention has the following configuration in order to achieve the above object.
即ち、上蓋が着脱自在に取り付けられた下部容器内に着
脱自在に取り付けられたクロスフレームを介して燃料集
合体が保持される輸送容器への燃料集合体取り付け構造
において、離間χ・Ｉ向状態に配設された一対の測成、
該一対の測成の対向面の略中央部を連結した連結板及び
前記一対のｍす阪に固定された底板からなる前記クロス
フレームと、
前記連結板の両側にそれぞれ配設された燃料集合体の各
支持格子の外側を覆うように設けられたエアバッグと、
該エアバッグの外側にスペーサを介して設けられ前記連
結板及び底板に着脱自在に取り付けられたＬ字形のフレ
ームと、
前記燃料集合体の上部ノズルと前記クロスフレームの一
方のｌ１ｌｌＪ板との間及び前記燃料集合体の下部ノズ
ルと前記クロスフレームの他方の側板との間に設けられ
たエアバッグと、
前記各エアバッグに弁を介して連通される空圧源とから
なるものとしている。That is, in a structure for attaching a fuel assembly to a transport container in which the fuel assembly is held via a cross frame that is detachably attached to a lower container to which an upper lid is detachably attached, A pair of measurements arranged,
The cross frame includes a connecting plate that connects substantially central portions of opposing surfaces of the pair of measurement plates, and a bottom plate that is fixed to the pair of slopes; and fuel assemblies respectively disposed on both sides of the connecting plate. an airbag provided to cover the outside of each support grid; an L-shaped frame provided outside the airbag via a spacer and detachably attached to the connecting plate and the bottom plate; and the fuel assembly. an airbag provided between an upper nozzle of the body and one l1lllJ plate of the cross frame and between a lower nozzle of the fuel assembly and the other side plate of the cross frame; and a valve for each of the airbags. and a pneumatic source communicated through the air pressure source.
「作用」
前記構成によれば、燃料集合体輸送容器内にクロスフレ
ームを介して燃料集合体を取り付けた後、空圧源より弁
を介してエアバッグに所要量の空気を供給すれば、支持
格子、フレーム間のｘ７バツグ及び燃料集合体の上部ノ
ズルと前記クロスフレームの一方の側板との間及び前記
燃料集合体の下部ノズルと前記クロスフレームの他方の
側板との間に設けられたエアバッグが膨らみ、燃料集合
体輸送容器内に燃料集合体を傷付けることなく容易に固
定することができ、従来のように、輸送容器へ燃料集合
体を固定する場合に、支持格子の数のブレ・７シヤーパ
ツドを使用する必要がなくなり、これらプレッシャーパ
ッドの取り付け、取り外しに要した手間を省くことがで
きる。"Operation" According to the above configuration, after the fuel assembly is installed in the fuel assembly transport container via the cross frame, if the required amount of air is supplied from the pneumatic source to the airbag via the valve, the support a lattice, a x7 bag between the frames, and an airbag provided between the upper nozzle of the fuel assembly and one side plate of the cross frame, and between the lower nozzle of the fuel assembly and the other side plate of the cross frame. bulges out, making it possible to easily fix the fuel assembly in the fuel assembly transport container without damaging it. There is no need to use a shear pad, and the effort required to attach and remove these pressure pads can be saved.
「実施例」
以下、本発明の一実施例を第１図ないし東？ｒＩ！Ｊに
基づいて説明する。第１図中１１は輸送容器であり、こ
の輸送容器１１は下部容器１２と上１１３とからなって
いる。"Embodiment" An embodiment of the present invention will be described below with reference to FIG. rI! The explanation will be based on J. Reference numeral 11 in FIG. 1 is a transport container, and this transport container 11 is composed of a lower container 12 and an upper container 113.
下部容器１２．上蓋１３は、それぞれ円筒の一端側の円
筒部１２ａあるいは円筒部１３ａを若干！！残してそれ
ら円筒の大部分を半割状態とした形状のらのである。下
部容器Ｉ２の上には上Ｍ１３か肢せられる。下部容器１
２の半割面１２ｂは第４図に示すように外側部が上方へ
立ち上がり鉤形に折れ曲がって立ち下がり立ち下がり部
（係合部）Ｌ２ｅとなって折り返し状に形成されている
。また、上Ｍ１３の半割面１３ｂは内側が立ち下がり鉤
形に折れ曲がって立ち上がり立ち上がり部（係合部）１
３ｅとなって折り返し状に形成されている。下部容器１
２の両半割面１２ｂの立ち下がり部１２ｅと、上１１３
の両半割面１３ｂの立ち上がり部１３ｅとの対向面には
それぞれ断面略半円形の溝１２ｆ、１３ｆが形成されて
いる。また、下部容器１２の内側端面１２ｃと他端面１
２ｄにはそれぞれ溝１２ｆに連通ずる一連の断面略半円
形の溝１２ｇ、１２ｈが形成されている。溝１２ｆ、１
２ｇ、１２ｈにはリング（ループ）状のゴムからなるチ
ューブ（エアバッグ）１５が溝１２ｇ部において立ち上
げられ溝１２ｈ部において立ち下げられて埋設されてい
る。チ；−ブ１５は全長にわたって側壁の片側半分が前
記ｐｔ１２ｔ、１２ｇ、１２ｈに埋設され残りの片側半
分が立ち下がり部１２ｅ、内側端面１２ｃ、池端面１２
ｄから突出している。Lower container 12. The upper lid 13 has a cylindrical portion 12a or 13a on one end of the cylinder, respectively! ! Most of the cylinders are cut in half, leaving the remaining cylinders in half. An upper M13 is placed above the lower container I2. Lower container 1
As shown in FIG. 4, the half-split surface 12b of No. 2 is formed into a folded shape with the outer side rising upward, bent into a hook shape, and falling to form a falling portion (engaging portion) L2e. In addition, the half-split surface 13b of the upper M13 has an inner side that falls downward, bends into a hook shape, and stands up as a rising portion (engaging portion) 1.
3e and is formed in a folded shape. Lower container 1
The falling part 12e of both half-divided surfaces 12b of 2 and the upper part 113
Grooves 12f and 13f each having a substantially semicircular cross section are formed on the surfaces of both half-divided surfaces 13b facing the rising portion 13e. In addition, the inner end surface 12c of the lower container 12 and the other end surface 1
A series of grooves 12g and 12h each having a substantially semicircular cross section are formed in the groove 2d and communicating with the groove 12f. Groove 12f, 1
A ring (loop) tube (airbag) 15 made of rubber is buried in the grooves 2g and 12h, rising up in the groove 12g and falling down in the groove 12h. - One half of the side wall of the PT 15 is buried in the pts 12t, 12g, and 12h over the entire length, and the remaining half is a falling part 12e, an inner end surface 12c, and a pond end surface 12.
It protrudes from d.
下部容器１２に上蓋１３を被せる場合には、下部容器１
２の他端面１２ｄの第１図における上部に上１１３の他
端面１３ｄの下部を突き合わせ状に対向させ、下部容器
１２に対し上蓋１３を下部・容器１２の円筒部１２ａ側
へスライドさせ、下部容器１２の立ち上がり部と立ち下
がりＭ１２ｅとの間に上蓋１３の立ち上がり部１３ｅを
嵌入させ、下部容器１２の内側端面Ｌ２ｃに上蓋１３の
他端面１３ｄを当接させると共に、下部容器１２の他端
面１２ｄに上蓋１３の内側端面１３ｃを当接させて蓋を
し、下部容１１２に上蓋１３を、上蓋１３の円筒部１３
ａ、下部容器１２の他端面１２ｄ側のチーーブ１５が埋
設されていない部分に複数のボルト（固定手段）１４を
ねじ込みこれら複数のボルト１４により締め付け固定す
るようになされている。When covering the lower container 12 with the upper lid 13, the lower container 1
The lower part of the other end surface 13d of the upper 113 is butted against the upper part of the other end surface 12d of the upper part 113 in FIG. The rising part 13e of the upper lid 13 is fitted between the rising part of the upper lid 12 and the falling part M12e, and the other end surface 13d of the upper lid 13 is brought into contact with the inner end surface L2c of the lower container 12, and the other end surface 12d of the lower container 12 is brought into contact with the inner end surface L2c of the lower container 12. The inner end surface 13c of the upper lid 13 is brought into contact with the lid, and the upper lid 13 is attached to the lower container 112, and the cylindrical portion 13 of the upper lid 13 is
a. A plurality of bolts (fixing means) 14 are screwed into a portion of the other end surface 12d of the lower container 12 where the chive 15 is not embedded, and these bolts 14 are tightened and fixed.
従って、下部容Ｍ１２に上１１３を装着したときには、
係合部１２ｅは係合部１３ｅを抱持し、係合部１３ｅは
（Ｉｉ、合部１２ｅを抱持して、円筒部＋２ａ、１３ａ
の軸線方向と直交する方向への下部容！＋２と上Ｍ１３
の離間を阻止するようになされている。Therefore, when the upper part 113 is attached to the lower part M12,
The engaging portion 12e holds the engaging portion 13e, and the engaging portion 13e (Ii) holds the engaging portion 12e and connects the cylindrical portions +2a, 13a.
The lower volume in the direction perpendicular to the axial direction of! +2 and upper M13
It is designed to prevent separation of the
下部容器１２の円筒部１２ａ近傍部には高圧調整弁１６
が取り付けられている。この高圧調整弁１６はチューブ
１５に気密に接続されている。１７は高圧Ｊ１整弁１６
に空圧源を接続するためのコネクタである。A high pressure regulating valve 16 is installed near the cylindrical portion 12a of the lower container 12.
is installed. This high pressure regulating valve 16 is airtightly connected to the tube 15. 17 is high pressure J1 valve 16
This is a connector for connecting a pneumatic source to the
前記輸送容器１１内には第５図に示す燃料集合体保持１
２１が収容される。この燃料集合体保持器２１は、クロ
スフレーム２２と、このクロスフレーム２２内に配置さ
れた燃料集合体２３をクロスフレーム２２に固定するフ
レーム２４とからなっている。Inside the transport container 11 is a fuel assembly holding 1 shown in FIG.
21 is accommodated. This fuel assembly holder 21 consists of a cross frame 22 and a frame 24 that fixes a fuel assembly 23 disposed within this cross frame 22 to the cross frame 22.
クロスフレーム２２は離間対向状態に配設れさた一対の
側板２２ａと、これら一対の鋼板２２ａの対向面の略中
央部を連結した連結板２２ｂと、側板２２ａ、２２ａに
固定れさた底板２２ｃとからなり、側板２２ａ、連結板
２２ｂ、底阪２２ｃはインロー式に組立てられている。The cross frame 22 includes a pair of side plates 22a that are spaced apart and facing each other, a connecting plate 22b that connects substantially central portions of opposing surfaces of the pair of steel plates 22a, and a bottom plate 22c that is fixed to the side plates 22a, 22a. The side plate 22a, the connecting plate 22b, and the bottom plate 22c are assembled in a spigot type.
連結板２２ｂの両側にはそれぞれ燃料集合体２３が側板
２２ａ、２２ａ開に位置させられ、連結板２２ｂ及び底
板２２ｃ側に寄せられて配設されている。Fuel assemblies 23 are located on both sides of the connecting plate 22b, with the side plates 22a and 22a open, and are arranged closer to the connecting plate 22b and the bottom plate 22c.
燃料集合体２３の各支持格子２３ａの外側には第５図に
示すようにＬ字形のフレーム２４が配設され、これらの
フレーム２４は、第７図に示すよ’） Ｌ支持格子２３
ａとの間にパッド２５．エアバッグ２６または２７を
介在させてクロスフレーム２２の連結板２２ｂ及び底板
２２ｃに着脱自在に固定されている。パッド２５は、硬
質ナイロンからなり、燃料集合体２３の燃料棒（図示せ
ず）に直接荷重がかかり損傷するのを防止するために設
けられている。またエアバッグ２６．２７は密閉袋から
なり、これらエアバッグ２６．２７には、下部容器１２
の第１図に示す内周壁に取り付けられた高圧調整弁２８
を介して空圧源に接続されている、
また、燃料集合体２３の上部ノズル２３ｂと燃料束ご体
保持器２１の側板２２ａ間にはパ・ｙド２９、エアバッ
グ３０が介在されている。このエアバッグ３０は密１ｒ
１ｇｔからなり、前記高圧ＩＩ整弁２８に連通されてい
る。また、燃料集合体２３の下部ノズル（図示せず）、
側板２２ａ間にも、上部ノズル２３ｂ、側板２２ａ間同
様にパッド及びエアバッグが介在されている。As shown in FIG. 5, an L-shaped frame 24 is arranged outside each support grid 23a of the fuel assembly 23, and these frames 24 are arranged as shown in FIG. 7') L-shaped support grid 23
Pad 25. It is detachably fixed to the connecting plate 22b and bottom plate 22c of the cross frame 22 with an airbag 26 or 27 interposed therebetween. The pad 25 is made of hard nylon and is provided to prevent direct load from being applied to the fuel rods (not shown) of the fuel assembly 23 and damage them. The airbags 26 and 27 are airtight bags, and these airbags 26 and 27 include a lower container 12
A high pressure regulating valve 28 attached to the inner peripheral wall shown in FIG.
In addition, a pad 29 and an air bag 30 are interposed between the upper nozzle 23b of the fuel assembly 23 and the side plate 22a of the fuel bundle body holder 21. . This airbag 30 is dense 1r
1gt, and is connected to the high pressure II regulating valve 28. In addition, a lower nozzle (not shown) of the fuel assembly 23,
A pad and an airbag are interposed between the side plates 22a as well as between the upper nozzle 23b and the side plates 22a.
このように構成された燃料集合体保持器２１は輸送容Ｓ
ｔｔの下部容器１２から上蓋１３が外された状態で下部
容１１２内に収納され、クロスフレーム２２を下部容器
１２に、この下部容器１２に設けろれたマウント及びマ
ウントフレーム（図示せず）により固定された後、前述
のように下部容器１２の他端面１２ｄの第１図における
上部に上蓋１３の他端面１３ｄの下部を突き合わせ状に
対向させ、下部容器１２に対し上蓋１３を下部容器１２
の円筒部１２ａ側へスライドさせ、下部容器１２の立ち
上がり部と立ち下がり部１２ｅとの間に上１１３の立ち
上がり部１３ｅを嵌入させ、下部容器１２の内側端面１
２ｃに上１ｉ１３の他端面１３ｄを当接させると共に、
下部容１１１２の他端面１２ｄに上ｉ１３の内側端面１
３ｃを当接させて蓋をし、下部容器１２に上Ｍ１３を、
上Ｍ１３の円筒部１３ａ、下部容器１２の他端面１２ｄ
側のチ１−ブ１５が埋設されていない部分に複数のボル
ト１４を螺合してこれら複数のボルト１４により締め付
け固定する。The fuel assembly holder 21 configured in this way has a transportation capacity S
tt is housed in the lower container 112 with the upper lid 13 removed from the lower container 12, and the cross frame 22 is fixed to the lower container 12 by a mount and a mount frame (not shown) provided in the lower container 12. After that, as described above, the lower part of the other end surface 13d of the upper lid 13 is faced to the upper part of the other end surface 12d of the lower container 12 in FIG.
The rising part 13e of the upper part 113 is inserted between the rising part and the falling part 12e of the lower container 12, and the inner end surface 1 of the lower container 12 is slid toward the cylindrical part 12a side.
While bringing the other end surface 13d of the upper 1i13 into contact with 2c,
The inner end surface 1 of the upper i13 is attached to the other end surface 12d of the lower volume 1112.
3c and close the lid, place the upper M13 on the lower container 12,
Cylindrical portion 13a of upper M13, other end surface 12d of lower container 12
A plurality of bolts 14 are screwed into the portion where the side tube 15 is not buried, and the plurality of bolts 14 are tightened and fixed.
この後、高圧調整弁１６．２８に空圧源（図示せず）を
接続して高圧調整弁１６．２８を開状態とし、これら高
圧調整弁１６．２８を介しエアバッグ２６，２７．３０
に所要量の圧縮空気を供給して膨らませる。これにより
、下部容器１２の立ち下がりｍ１２ｅと上蓋１３の立ち
上がり部１３ｄ゛とが互いに抱持状態で係合して円筒部
１２ａ。After this, a pneumatic source (not shown) is connected to the high pressure regulating valve 16.28 to open the high pressure regulating valve 16.28, and the airbags 26, 27.30 are connected to the high pressure regulating valve 16.28.
Supply the required amount of compressed air to inflate it. As a result, the falling portion m12e of the lower container 12 and the rising portion 13d of the upper lid 13 are engaged with each other in a holding state to form the cylindrical portion 12a.
１３ａの軸線方向と直交する方向への下部容器１２と上
１１３の離間を阻止し、下部容器１２に装着された上蓋
１３を、上蓋１３の円筒部１３ａの外側端面からボルト
締めにより下部容器１２に固定した状態で下部容器１２
と上ａ！１３との開を密）１し、クロスフレーム２２の
一方のｅＩＦｉ２２ａと員料果１合体上部ノズルとの間
、他方の側板２２ａと燃料集合体下部ノズルとの間、燃
料集合体２３とフレーム２４との間に緩衝作用が生じる
。ここで、高圧調整弁１６．２８を閉弁し、これら高圧
Ｎ４整ｆＦ１６，２８から空圧源を外すことによりその
状態で輸送容器１１と共に燃料集合体を輸送することが
可能となる。The lower container 12 and the upper 113 are prevented from separating in the direction perpendicular to the axial direction of the upper lid 13a, and the upper lid 13 attached to the lower container 12 is attached to the lower container 12 by bolting from the outer end surface of the cylindrical portion 13a of the upper lid 13. Lower container 12 in fixed state
And upper a! 13), between one eIFi 22a of the cross frame 22 and the upper nozzle of the fuel assembly 1, between the other side plate 22a and the lower nozzle of the fuel assembly, and between the fuel assembly 23 and the frame 24. A buffering effect occurs between the two. Here, by closing the high pressure regulating valves 16 and 28 and removing the air pressure source from these high pressure N4 regulating fFs 16 and 28, it becomes possible to transport the fuel assembly together with the transport container 11 in this state.
従って、本実施例によれば、空圧源より高圧調整弁１６
．２８を介してエアバッグ２６，２７゜３．０に所要量
の空気を供給すれば、下部容器１２の係き部１２ｅと上
蓋１３の係合部１３ｅとが互いに抱持状態で係合して前
記円筒部１２ａ、１３ａの軸線方向と直交する方向への
下部容器１２と上蓋１３の離間を阻止して、下部容器１
２に装着された上蓋１３を、上蓋１３の円筒部外側端面
からボルト締めにより前記下部容器１２に固定した状態
でエアバッグ２６，２７．３０を膨らませて下部容１１
２と上１１３との間を密封することができ、また、燃料
集合体２３の上部ノズルとクロスフレーム２２の一方の
側！１Ｅ２２ａとの間及び燃Ｎ’ｌＡ合体ｚｓの下部ノ
ズルとクロスフレーム２２の他方の側Ｍ ２２ ａとの
間に設けられたエアバ。Therefore, according to this embodiment, the high pressure regulating valve 16 is
．． If the required amount of air is supplied to the airbags 26 and 27°3.0 through the airbags 28, the engaging portion 12e of the lower container 12 and the engaging portion 13e of the upper lid 13 will engage with each other in a hugging state. The lower container 1 is prevented from separating from the lower container 12 and the upper lid 13 in a direction perpendicular to the axial direction of the cylindrical portions 12a and 13a.
2 is fixed to the lower container 12 by bolting from the outer end surface of the cylindrical portion of the upper lid 13, and the airbags 26, 27, 30 are inflated to open the lower container 11.
2 and the upper nozzle of the fuel assembly 23 and one side of the cross frame 22! 1E22a and between the lower nozzle of the fuel N'lA combination zs and the other side M22a of the cross frame 22.
グ３０を膨らませて緩衝作用を生じさせることができ、
この状態で弁を閉弁して、輸送容器と共に燃料集合体を
輸送することが可能となる。The plug 30 can be inflated to create a cushioning effect,
In this state, the valve is closed and the fuel assembly can be transported together with the transport container.
従って、従来のように下部容器と上蓋とを多数のカムロ
ックボルトにより締め付け固定する必要がな（なり、下
部容器への上蓋の固定が極めて容易となり、また、従来
のように、輸送容器へ燃料集合体を固定する場合に、支
持格子の数のプレッシャーパッドを使用する必要がな（
なり、これらプレッシャーパッドの取り付け、取り外し
に要した手間を省（ことができる。Therefore, it is not necessary to tighten and fix the lower container and the upper lid with a large number of cam lock bolts as in the past (this makes it extremely easy to fix the upper lid to the lower container, and it is also necessary to assemble the fuel into the transportation container as in the past). When immobilizing the body, it is not necessary to use as many pressure pads as there are support grids (
This saves the time and effort required to attach and remove these pressure pads.
「発明の効果」
本発明によれば、燃料集合体輸送容器内にクロスフレー
ムを介して燃料集合体を取り付けた後、空圧源より弁を
介してエアバッグに所要量の空気を供給すれば、支持格
子、フレーム間のエアバッグ及び燃ｔ゛１集合体の上部
ノズルと前記クロスフレームの−・方の側板との間及び
前記燃料集合体の下部ノズルと前記クロスフレームの他
方の側板トの間に設けられたエアバＩグか膨らみ、燃料
集合体輸送容器内に燃料集合体を傷付けることなく容易
に固定することができ、従来のように、輸送容器へ燃料
集合体を固定する場合に、支持格子の数のプレソンヤー
バノドを使用する必要がなくなり、これらプレッシャー
パッドの取り付け、取り外しに要した手間を省くことが
できる。"Effects of the Invention" According to the present invention, after a fuel assembly is installed in a fuel assembly transport container via a cross frame, a required amount of air is supplied from a pneumatic source to an airbag via a valve. , a support grid, an airbag between the frames, and between the upper nozzle of the fuel assembly and the - side plate of the cross frame, and between the lower nozzle of the fuel assembly and the other side plate of the cross frame. The air bag provided between the fuel assemblies can be easily fixed in the transportation container without damaging the fuel assembly. It is no longer necessary to use the same number of pressure pads as there are support grids, and the effort required to attach and remove these pressure pads can be saved.
第１図ないし第７図は本発明の一実施例を示すもので、
第１図は上蓋装着時状態を示す斜視図、第２図は斜視図
、第３図は部所面図、第４図は′Ｍ３図の■内部の拡大
詳細図、第５図は燃料集合体保持器の斜視図、第６図は
燃料集合体保持器の一部の側面図、第７図は燃料集合体
保持器の一部の側断面図、第８図は従来の輸送容器への
燃料集合体の取り付け構造の一例を示す斜視図である。
１２・・・・・・下部容器、１２ａ、１３ａ・・・・・
・円筒部、１２ｂ、１３ｂ・・・・・・半割面、１２ｃ
、１３ｃ・・・・・・内側端面、１２ｄ、１３ｄ・・・
・、−他端面、１２ ｅ −９゜・・・立ち下がり部（
係合部）、１３・・・・・・上蓋、１３ｅ・・・・・・
立ち上がり部（係合部）、１４・・・・・・ボルト（固
定手段）、１５・・・・・・チューブ（エアバッグ）、
Ｉ６・・・・・・高圧調整弁、２１・・・・・・燃料集
合体保持器、２３・・・・・・燃料集合体。1 to 7 show an embodiment of the present invention,
Figure 1 is a perspective view showing the state when the top cover is installed, Figure 2 is a perspective view, Figure 3 is a top view of parts, Figure 4 is an enlarged detailed view of the inside of Figure M3, and Figure 5 is a fuel assembly. 6 is a side view of a portion of the fuel assembly holder, FIG. 7 is a side sectional view of a portion of the fuel assembly holder, and FIG. 8 is a view of a conventional transport container. FIG. 3 is a perspective view showing an example of a fuel assembly mounting structure. 12...Lower container, 12a, 13a...
・Cylindrical part, 12b, 13b... Half surface, 12c
, 13c...Inner end surface, 12d, 13d...
・, -Other end face, 12 e -9°... Falling part (
(engaging portion), 13... upper lid, 13e...
Standing part (engaging part), 14... Bolt (fixing means), 15... Tube (air bag),
I6... High pressure regulating valve, 21... Fuel assembly holder, 23... Fuel assembly.
Claims (1)
に取り付けられたクロスフレームを介して燃料集合体が
保持される輸送容器への燃料集合体取り付け構造におい
て、 離間対向状態に配設された一対の側板、該一対の側板の
対向面の略中央部を連結した連結板及び前記一対の側板
に固定された底板からなる前記クロスフレームと、 前記連結板の両側にそれぞれ配設された燃料集合体の各
支持格子の外側を覆うように設けられたエアバッグと、 該エアバッグの外側にスペーサを介して設けられ前記連
結板及び底板に着脱自在に取り付けられたＬ字形のフレ
ームと、 前記燃料集合体の上部ノズルと前記クロスフレームの一
方の側板との間及び前記燃料集合体の下部ノズルと前記
クロスフレームの他方の側板との間に設けられたエアバ
ッグと、 前記各エアバッグに弁を介して連通される空圧源とから
なることを特徴とする輸送容器への燃料集合体取り付け
構造。[Scope of Claims] A structure for mounting a fuel assembly to a transportation container in which the fuel assembly is held via a cross frame removably attached to a lower container to which an upper lid is detachably attached, comprising: The cross frame includes a pair of side plates disposed on the side plates, a connecting plate connecting substantially central portions of opposing surfaces of the pair of side plates, and a bottom plate fixed to the pair of side plates; an L-shaped airbag provided to cover the outside of each support grid of the installed fuel assembly; and an L-shaped airbag provided outside the airbag via a spacer and detachably attached to the connecting plate and the bottom plate. a frame; an airbag provided between the upper nozzle of the fuel assembly and one side plate of the cross frame and between the lower nozzle of the fuel assembly and the other side plate of the cross frame; 1. A structure for mounting a fuel assembly to a transport container, comprising a pneumatic source communicating with an airbag via a valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289376A JP2967124B2 (en) | 1990-10-26 | 1990-10-26 | Fuel assembly transport container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2289376A JP2967124B2 (en) | 1990-10-26 | 1990-10-26 | Fuel assembly transport container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04161894A true JPH04161894A (en) | 1992-06-05 |
| JP2967124B2 JP2967124B2 (en) | 1999-10-25 |
Family
ID=17742411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2289376A Expired - Fee Related JP2967124B2 (en) | 1990-10-26 | 1990-10-26 | Fuel assembly transport container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2967124B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006505780A (en) * | 2002-11-06 | 2006-02-16 | コジェマ ロジスティックス | Containers for storage / transport of unirradiated radioactive material such as nuclear fuel assemblies |
| CN103474119A (en) * | 2013-09-12 | 2013-12-25 | 中国核电工程有限公司 | Conveying container for nuclear fuel assemblies |
-
1990
- 1990-10-26 JP JP2289376A patent/JP2967124B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006505780A (en) * | 2002-11-06 | 2006-02-16 | コジェマ ロジスティックス | Containers for storage / transport of unirradiated radioactive material such as nuclear fuel assemblies |
| JP4727229B2 (en) * | 2002-11-06 | 2011-07-20 | コジェマ ロジスティックス | Containers for storage / transport of unirradiated radioactive material such as nuclear fuel assemblies |
| CN103474119A (en) * | 2013-09-12 | 2013-12-25 | 中国核电工程有限公司 | Conveying container for nuclear fuel assemblies |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2967124B2 (en) | 1999-10-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5745941A (en) | Air support mattress overlay with fitted sheet mounting | |
| US4664254A (en) | Shipping container for works of art | |
| CN100522760C (en) | Plate material packing box, plate material transporting method, and plate material loading or unloading method | |
| EP0583370A1 (en) | Circular vibratory screen separator | |
| US4202452A (en) | Supporting rack for breakable articles | |
| CA2409256A1 (en) | Semi-rigid pelvic compression splint for trauma | |
| JPH04161894A (en) | Fixing structure for fuel assembly to transportation cask | |
| HU192284B (en) | Air-cushion conveyor | |
| CN108202927A (en) | Load securing system and for loading fixed method | |
| KR20130136294A (en) | Transfer jig for pressure safety valve | |
| JPH0328536A (en) | Single action cylinder | |
| EP0679577B1 (en) | Method of and device for packing article by means of athmospheric pressure | |
| JPH04161893A (en) | Fuel assembly transportation cask | |
| JP2602693Y2 (en) | Packaging machine | |
| US4566505A (en) | Packaging machine | |
| CN213801080U (en) | EPP board system packing box | |
| US8123433B2 (en) | Inflatable lift system | |
| JP4219268B2 (en) | Fastener for powder filling device and powder filling device provided with the fastener | |
| JPH01240396A (en) | Method and device for fixing cargo and structure for attaching air bag in said device | |
| JPH01139389A (en) | Hopper device | |
| JP5133627B2 (en) | Variable capacity gas holder | |
| EP0326072A2 (en) | An air cushioned packing device and packing method | |
| JP4564723B2 (en) | Box storage type membrane gas holder | |
| JPS6160335A (en) | Movable wall for securing loaded cargo | |
| JPH0796990A (en) | Flexible container for transportation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20070820 Year of fee payment: 8 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080820 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090820 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100820 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |