JPH0715512B2 - Reactor fuel storage basket manufacturing method - Google Patents
Reactor fuel storage basket manufacturing methodInfo
- Publication number
- JPH0715512B2 JPH0715512B2 JP63097447A JP9744788A JPH0715512B2 JP H0715512 B2 JPH0715512 B2 JP H0715512B2 JP 63097447 A JP63097447 A JP 63097447A JP 9744788 A JP9744788 A JP 9744788A JP H0715512 B2 JPH0715512 B2 JP H0715512B2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- strip
- shaped
- vertical plate
- horizontal plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000003758 nuclear fuel Substances 0.000 title claims description 6
- 238000003860 storage Methods 0.000 title claims description 6
- 238000003466 welding Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000002915 spent fuel radioactive waste Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、原子炉の使用済燃料棒を収納するためのバ
スケツトの製造方法に関するものである。Description: TECHNICAL FIELD The present invention relates to a method of manufacturing a basket for housing a spent fuel rod of a nuclear reactor.
原子炉において、使用済の廃却すべき燃料集合体を収納
するために、第５図に正面図で、第６図に平面図で、第
７図に部分拡大平面図で示すようなバスケツトが使用さ
れている。バスケツト１は、互いに直交する例えばステ
ンレス鋼製の多数の横板２と帯状縦板３とによつて、内
部が格子状に形成された円筒体からなつている。In a nuclear reactor, a basket as shown in a front view in FIG. 5, a plan view in FIG. 6 and a partially enlarged plan view in FIG. 7 is provided for storing spent fuel assemblies to be discarded. It is used. The basket 1 is composed of a cylindrical body whose inside is formed in a lattice shape by a large number of horizontal plates 2 and strip-shaped vertical plates 3 made of, for example, stainless steel which are orthogonal to each other.
図示の例は、52BWR型と称されている、150mm角の格子中
に、138mm角の燃料集合体が52個収納されるバスケツト
で、直径1485mm、高さが4400mmである。The illustrated example is a 52BWR type basket in which 52 fuel assemblies of 138 mm square are accommodated in a 150 mm square grid, and the diameter is 1485 mm and the height is 4400 mm.
このようなバスケツトは、従来、第８図に示すような方
法により製造されていた。即ち、第８図（イ）に示すよ
うに平板状の横板２の上面に、一定間隔で所定高さの複
数枚の帯状縦板３を互いに平行に配置し、帯状縦板３を
横板２に仮付け溶接する。次いで、同図（ロ）に示すよ
うに、上記により横板２に仮付けされた複数枚の帯状縦
板３の上端に次の平板状の横板２を配置し、横板２と帯
状縦板３の上端とをプラグ溶接する。次いで、同図
（ハ）に示すように、横板２の上面に上記と同じように
複数枚の帯状縦板３を配置し横板２に仮付けする。以下
同様の方法によつて、平板状の横板２と、横板２に仮付
けされた複数枚の帯状縦板３とが交互に複数段にわたつ
て形成された仮付け体を調製する。Conventionally, such a basket has been manufactured by the method shown in FIG. That is, as shown in FIG. 8 (a), a plurality of strip-shaped vertical plates 3 having a predetermined height are arranged in parallel with each other on the upper surface of the flat plate-shaped horizontal plate 2, and the strip-shaped vertical plates 3 are attached to each other. Temporarily weld to No.2. Next, as shown in FIG. 2B, the next flat plate-shaped horizontal plate 2 is arranged on the upper ends of the plurality of strip-shaped vertical plates 3 temporarily attached to the horizontal plate 2 as described above, and the horizontal plate 2 and the strip-shaped vertical plates 3 are arranged. The upper end of the plate 3 is plug-welded. Next, as shown in FIG. 3C, a plurality of strip-shaped vertical plates 3 are arranged on the upper surface of the horizontal plate 2 and temporarily attached to the horizontal plate 2 as described above. In the same manner as described below, a temporary attachment body in which a flat plate-shaped horizontal plate 2 and a plurality of strip-shaped vertical plates 3 temporarily attached to the horizontal plate 2 are alternately formed over a plurality of stages is prepared.
次いで、前記仮付け体における平板状の横板２と帯状縦
板３との仮付けされた両隅部を、TIG溶接により溶接
し、全体の外周に側板を取り付け、かくしてバスケツト
が完成する。Next, the temporarily attached corners of the flat plate-shaped horizontal plate 2 and the strip-shaped vertical plate 3 in the temporary attachment body are welded by TIG welding, and the side plates are attached to the entire outer periphery, thus completing the basket.
上述のようにして製造されたバスケツトの強度は、従
来、横板２と帯状縦板３との溶接部によつて保たれてい
るため、第９図に部分拡大側面図で示すように、横板２
と縦板３との溶接部４には、脚長ａが３〜5mmの隅肉溶
接を施すことが必要となる。Since the strength of the basket produced as described above is conventionally maintained by the welded portion of the horizontal plate 2 and the strip-shaped vertical plate 3, as shown in the partially enlarged side view of FIG. Board 2
It is necessary to perform fillet welding with a leg length a of 3 to 5 mm on the welded portion 4 between the vertical plate 3 and the vertical plate 3.
この結果、溶接入熱が大になり、溶接終了後に変形、歪
および収縮等が生ずるため、バスケツトの寸法精度が低
下する問題が生じた。As a result, the heat input to the welding becomes large, and deformation, distortion, shrinkage, etc. occur after the welding is completed, and the dimensional accuracy of the basket deteriorates.
従つて、この発明の目的は、横板と帯状縦板との溶接終
了後に、変形、歪および収縮等の生ずることがない、優
れた寸法精度の原子炉燃料収納用バスケツトの製造方法
を提供することにある。Therefore, an object of the present invention is to provide a method of manufacturing a reactor fuel storage basket with excellent dimensional accuracy, which is free from deformation, distortion, contraction, etc. after welding of a horizontal plate and a strip vertical plate. Especially.
この発明は、平板状の横板と、前記横板上に一定間隔で
互いに平行に配置された複数枚の帯状縦板とを、複数段
にわたり交互に積層し、前記横板と前記縦板との接合部
両隅を隅肉溶接し、外周全体に側板を取り付けてなる、
内部が格子状に形成された円筒体状の、原子炉燃料収納
用バスケツトの製造方法において、 前記帯状縦板の上下両端に、前記縦板の幅よりも狭い幅
で所定高さの突起をその全長にわたり形成し、前記平板
状の横板における前記帯状縦板の取付け位置に、前記帯
状縦板の前記突起が挿入される互いに平行な複数条の溝
を形成し、前記横板の前記溝に、前記縦板の前記突起を
嵌込み、このようにして組立てられた前記横板と前記帯
状縦板との接合部両隅を、脚長の短い軽度の隅肉溶接に
よつて接合することに特徴を有するものである。This invention is a flat plate-shaped horizontal plate, and a plurality of strip-shaped vertical plates arranged in parallel with each other on the horizontal plate at regular intervals, alternately stacked over a plurality of stages, the horizontal plate and the vertical plate. Weld fillet both corners of the joint and attach side plates to the entire outer circumference.
In the method of manufacturing a reactor fuel storage basket having a lattice-shaped interior, in the upper and lower ends of the strip-shaped vertical plate, a projection of a predetermined height with a width narrower than the width of the vertical plate Formed over the entire length, at the mounting position of the strip-shaped vertical plate on the flat plate-shaped horizontal plate, to form a plurality of parallel grooves into which the protrusion of the strip-shaped vertical plate is inserted, in the groove of the horizontal plate Characterized in that the protrusions of the vertical plate are fitted, and both corners of the joint between the horizontal plate and the strip-shaped vertical plate assembled in this manner are joined by mild fillet welding with a short leg length. Is to have.
次に、この発明を、図面に参照しながら説明する。第１
図はこの発明の方法に使用される帯状縦板の側面図、第
２図は同じく横板の側面図、第３図は横板と帯状縦板と
の組立て部分を示す拡大側面図である。図面に示すよう
に、平板状の横板2,2間に組み込まれる帯状縦板３の上
下両端の各々には、縦板３の幅よりも狭い幅で且つ所定
高さの突起５が、その全長にわたつて形成されている。Next, the present invention will be described with reference to the drawings. First
FIG. 1 is a side view of a strip-shaped vertical plate used in the method of the present invention, FIG. 2 is a side view of the same horizontal plate, and FIG. 3 is an enlarged side view showing an assembled portion of the horizontal plate and the strip-shaped vertical plate. As shown in the drawing, on each of the upper and lower ends of the strip-shaped vertical plate 3 assembled between the flat plate-shaped horizontal plates 2, 2, a projection 5 having a width narrower than the width of the vertical plate 3 and having a predetermined height is formed. It is formed over the entire length.
平板状の横板２における、帯状縦板３の取付け位置に
は、帯状縦板３の突起５が挿入される、突起５の幅およ
び高さとほぼ同じ幅および深さを有する複数条の溝６
が、所定間隔で互いに平行に形成されている。At the mounting position of the strip-shaped vertical plate 3 on the flat plate-shaped horizontal plate 2, a plurality of grooves 6 having the same width and depth as the width and height of the protrusion 5 into which the projection 5 of the strip-shaped vertical plate 3 is inserted.
Are formed in parallel with each other at a predetermined interval.
平板状の横板２の上面の溝６の各々に帯状縦板３をその
下端の突起５によつて挿入し、次いで、帯状縦板３の上
端の突起５に、次の平板状の横板２を、その下面の溝６
によつて挿入する。以下同様の方法によつて、横板２と
帯状縦板３とを組合わせ、横板２と帯状縦板３とが交互
に複数段にわたつて形成された組立て体を調製する。The strip-shaped vertical plate 3 is inserted into each of the grooves 6 on the upper surface of the flat plate-shaped horizontal plate 2 by the projection 5 at the lower end thereof, and then the projection 5 at the upper end of the strip-shaped vertical plate 3 is inserted into the next flat plate-shaped horizontal plate. 2 to the groove 6 on the lower surface
To insert. Thereafter, the horizontal plate 2 and the strip-shaped vertical plate 3 are combined by the same method to prepare an assembly in which the horizontal plate 2 and the strip-shaped vertical plate 3 are alternately formed over a plurality of stages.
次いで、前記組立て体における平板状の横板２と帯状縦
板３との接合部両隅を、脚長の短い軽度の隅肉溶接によ
つて接着し、全体の外周に側板を取り付け、かくしてバ
スケツトが完成する。Then, both corners of the joining portion of the flat plate-shaped horizontal plate 2 and the strip-shaped vertical plate 3 in the assembly are bonded by slight fillet welding with a short leg length, and side plates are attached to the entire outer periphery, thus the basket is formed. Complete.
この発明は、上述のように構成され、平板状の横板２と
帯状縦板３とは、横板２の上下面に形成された溝６に帯
状縦板３の上下両端に形成された突起５を嵌入むことに
より組立てられる。The present invention is configured as described above, and the flat plate-shaped horizontal plate 2 and the strip-shaped vertical plate 3 are the projections formed at the upper and lower ends of the strip-shaped vertical plate 3 in the grooves 6 formed on the upper and lower surfaces of the horizontal plate 2. Assembled by inserting 5.
従つて、強度は主として横板２の溝６と帯状縦板３の突
起５との摩擦力により保たれるので、横板２と帯状縦板
３との溶接部４における隅肉溶接を、脚長ａが1mm位の
軽度の溶接によつて行なうことができる。Therefore, since the strength is maintained mainly by the frictional force between the groove 6 of the horizontal plate 2 and the projection 5 of the strip-shaped vertical plate 3, the fillet welding in the welded portion 4 of the horizontal plate 2 and the strip-shaped vertical plate 3 is performed by the leg length. It can be performed by mild welding with a of about 1 mm.
更に、平板状の横板２と帯状縦板３とは、横板２の溝６
に帯状縦板３の突起５を嵌入むことによつて組立てられ
るから、寸法精度を高めることができる。Further, the horizontal plate 2 in the form of a flat plate and the vertical plate 3 in the form of a strip are provided with grooves 6 in the horizontal plate 2.
Since the assembly is carried out by fitting the projection 5 of the strip-shaped vertical plate 3 in, the dimensional accuracy can be improved.
平板状の横板２と帯状縦板３との接合部分の寸法の一例
を、下記に示す。第４図に示すように、帯状縦板３の幅
をｔ、その突起５の幅をｌ、横板２の溝６の深さをｄ、
溝６における突起５との間隙をｇ、溶接部の脚長をａと
すると、各部の寸法は、次の通りである。An example of the dimensions of the joint between the flat plate 2 and the strip vertical plate 3 is shown below. As shown in FIG. 4, the width of the strip-shaped vertical plate 3 is t, the width of the protrusion 5 thereof is 1, the depth of the groove 6 of the horizontal plate 2 is d,
When the gap between the groove 6 and the projection 5 is g and the leg length of the welded portion is a, the dimensions of each portion are as follows.
〔発明の効果〕 以上述べたように、この発明の方法によれば、強度は主
として平板状の横板の溝と、前記溝に嵌め込まれた帯状
縦板の突起との摩擦力により保たれ、横板と帯状縦板と
の隅肉溶接は、脚長の短い軽度の溶接で済む。従つて、
溶接終了後に、変形、歪および収縮等の生ずることがな
く、優れた寸法精度の原子炉燃料収納用バスケツトが製
造できる工業上有用な効果がもたらされる。 As described above, according to the method of the present invention, the strength is mainly maintained by the frictional force between the groove of the flat plate-shaped horizontal plate and the projection of the strip-shaped vertical plate fitted in the groove, The fillet welding between the horizontal plate and the strip-shaped vertical plate may be a mild welding with a short leg length. Therefore,
After the completion of welding, deformation, distortion, shrinkage, etc. do not occur, and an industrially useful effect that a reactor fuel storage basket with excellent dimensional accuracy can be manufactured is brought about.
第１図はこの発明の方法に使用される帯状縦板の側面
図、第２図は同じく横板の側面図、第３図は横板と帯状
縦板との組立て部分を示す拡大側面図、第４図は各部の
寸法の一例を示す説明図、第５図はバスケツトの概略正
面図、第６図はその平面図、第７図は部分拡大平面図、
第８図は従来の製造方法を示す工程図、第９図は溶接部
分の拡大側面図である。図面において、 １……バスケツト、２……横板、３……帯状縦板、４…
…溶接部、５……突起、６……溝。FIG. 1 is a side view of a strip-shaped vertical plate used in the method of the present invention, FIG. 2 is a side view of the same horizontal plate, and FIG. 3 is an enlarged side view showing an assembled portion of the horizontal plate and the strip-shaped vertical plate. FIG. 4 is an explanatory view showing an example of dimensions of each part, FIG. 5 is a schematic front view of a basket, FIG. 6 is its plan view, FIG. 7 is a partially enlarged plan view,
FIG. 8 is a process diagram showing a conventional manufacturing method, and FIG. 9 is an enlarged side view of a welded portion. In the drawings, 1 ... basket, 2 ... horizontal plate, 3 ... band-shaped vertical plate, 4 ...
… Welded part, 5 …… Protrusion, 6 …… Groove.
Claims (1)
互いに平行に配置された複数枚の帯状縦板とを、複数段
にわたり交互に積層し、前記横板と前記縦板との接合部
両隅を隅肉溶接し、外周全体に側板を取り付けてなる、
内部が格子状に形成された円筒体状の、原子炉燃料収納
用バスケツトの製造方法において、 前記帯状縦板の上下両端に、前記縦板の幅よりも狭い幅
で所定高さの突起をその全長にわたり形成し、前記平板
状の横板における前記帯状縦板の取付け位置に、前記帯
状縦板の前記突起が挿入される互いに平行な複数条の溝
を形成し、前記横板の前記溝に、前記縦板の前記突起を
嵌込み、このようにして組立てられた前記横板と前記帯
状縦板との接合部両隅を、脚長の短い軽度の隅肉溶接に
よつて接着することを特徴とする、原子炉燃料収納用バ
スケツトの製造方法。1. A flat plate-shaped horizontal plate and a plurality of strip-shaped vertical plates arranged on the horizontal plate in parallel with each other at regular intervals are alternately laminated in a plurality of stages to form the horizontal plate and the vertical plate. Weld fillet both corners of the joint with and attach side plates to the entire outer circumference.
In the method of manufacturing a reactor fuel storage basket having a lattice-shaped interior, in the upper and lower ends of the strip-shaped vertical plate, a projection of a predetermined height with a width narrower than the width of the vertical plate Formed over the entire length, at the mounting position of the strip-shaped vertical plate on the flat plate-shaped horizontal plate, to form a plurality of parallel grooves into which the protrusion of the strip-shaped vertical plate is inserted, in the groove of the horizontal plate Characterized in that the projections of the vertical plate are fitted, and both corners of the joint between the horizontal plate and the strip-shaped vertical plate assembled in this manner are bonded by mild fillet welding with a short leg length. A method for manufacturing a reactor fuel storage basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097447A JPH0715512B2 (en) | 1988-04-20 | 1988-04-20 | Reactor fuel storage basket manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63097447A JPH0715512B2 (en) | 1988-04-20 | 1988-04-20 | Reactor fuel storage basket manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01269091A JPH01269091A (en) | 1989-10-26 |
| JPH0715512B2 true JPH0715512B2 (en) | 1995-02-22 |
Family
ID=14192573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63097447A Expired - Lifetime JPH0715512B2 (en) | 1988-04-20 | 1988-04-20 | Reactor fuel storage basket manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715512B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5010491B2 (en) * | 2008-01-30 | 2012-08-29 | 三菱重工業株式会社 | Recycled fuel assembly storage basket, recycled fuel assembly storage container, and method for manufacturing recycled fuel assembly storage basket |
-
1988
- 1988-04-20 JP JP63097447A patent/JPH0715512B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01269091A (en) | 1989-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW200842897A (en) | Spent fuel storage rack | |
| CA1160764A (en) | Spacer grid corner gusset | |
| JPH0715512B2 (en) | Reactor fuel storage basket manufacturing method | |
| US4120751A (en) | Fuel element skeleton | |
| JP3794814B2 (en) | Rack assembly for nuclear reactor fuel assemblies | |
| JP2568317B2 (en) | Storage rack for spent fuel | |
| JP5058089B2 (en) | Spent fuel storage rack and manufacturing method thereof | |
| JP3141491B2 (en) | Spent fuel storage rack | |
| US3197382A (en) | Internally strengthened flat fuel plate | |
| JPH0635200Y2 (en) | Support grid | |
| JP2000121783A (en) | Spent fuel storage rack and method of manufacturing the same | |
| JP2002107485A (en) | Spent fuel storage rack | |
| JPS6342395Y2 (en) | ||
| JP3750032B2 (en) | Structure having cross joint and method for assembling and manufacturing the same | |
| JPH0453599Y2 (en) | ||
| JPS58213293A (en) | Method of making nuclear fuel storage rack | |
| JP2939459B2 (en) | Spent fuel storage rack and its manufacturing method | |
| JP2765854B2 (en) | Storage rack for spent fuel | |
| JPH0580188A (en) | Spent fuel storage rack | |
| JPS61251788A (en) | fuel spacer | |
| JPS61242770A (en) | Metallurgical joining method of different metals | |
| JPH0524236Y2 (en) | ||
| JP2001108783A (en) | Spent fuel storage rack and method of manufacturing the same | |
| JPS6020710B2 (en) | Support grid for nuclear fuel assembly | |
| JPH06186385A (en) | Storage rack for used fuel |