JPH049088Y2 - - Google Patents
Info
- Publication number
- JPH049088Y2 JPH049088Y2 JP1987174454U JP17445487U JPH049088Y2 JP H049088 Y2 JPH049088 Y2 JP H049088Y2 JP 1987174454 U JP1987174454 U JP 1987174454U JP 17445487 U JP17445487 U JP 17445487U JP H049088 Y2 JPH049088 Y2 JP H049088Y2
- Authority
- JP
- Japan
- Prior art keywords
- welding
- support pin
- spacer
- welding table
- cylindrical member
- 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
Links
- 238000003466 welding Methods 0.000 claims description 43
- 125000006850 spacer group Chemical group 0.000 claims description 27
- 239000003758 nuclear fuel Substances 0.000 claims description 9
- 238000000605 extraction Methods 0.000 claims 1
- 230000000452 restraining effect Effects 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 3
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten 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
【考案の詳細な説明】
〔考案の目的〕
（産業上の利用分野）
本考案は、核燃料スペーサ溶接装置からスペー
サを取り出すためのスペーサ取出装置に関する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to a spacer take-out device for taking out a spacer from a nuclear fuel spacer welding device.
（従来の技術）
一般に、核燃料集合体においては、互いに平行
に配列された多数本の燃料棒を所定間隔に所定位
置に保持するためにスペーサが設けられている。(Prior Art) Generally, in a nuclear fuel assembly, spacers are provided to hold a large number of fuel rods arranged parallel to each other at predetermined positions at predetermined intervals.
第６図および第７図は上記スペーサの平面図お
よび一部縦断面図であつて、上記燃料棒を挿通し
得る内径を有する所定数の円筒部材１が互いに軸
線が平行になるように縦横に配列配設され、その
外周部に外枠を構成するサイドバンド２が装着さ
れており、上記内筒部材１内に挿入された燃料棒
を、上記円筒部材１に設けられたバネ部材３によ
つて円筒部材の内面に形成された突部４に圧接す
ることによつて、上記燃料棒の半径方向の移動が
生じないようにしてある。なお、第６図中符号５
は中央開孔部である。 6 and 7 are a plan view and a partial vertical sectional view of the spacer, in which a predetermined number of cylindrical members 1 having an inner diameter through which the fuel rods can be inserted are arranged vertically and horizontally so that their axes are parallel to each other. A side band 2 constituting an outer frame is attached to the outer periphery of the fuel rods, and the fuel rods inserted into the inner cylindrical member 1 are supported by a spring member 3 provided on the cylindrical member 1. By pressing against a protrusion 4 formed on the inner surface of the cylindrical member, the fuel rod is prevented from moving in the radial direction. In addition, the reference numeral 5 in Figure 6
is the central opening.
ところで、上記円筒部材の溶接に際しては、前
記円筒部材を縦横所定数づつ配列、配置し、外側
４方向から固定して、円筒部材の接触した部位の
各位置をレーザ光または非消耗式のタングステン
電極で溶接することが行なわれている。 By the way, when welding the cylindrical members, the cylindrical members are arranged and arranged in a predetermined number vertically and horizontally, fixed from four directions on the outside, and each contacting part of the cylindrical members is irradiated with a laser beam or a non-consumable tungsten electrode. Welding is done in
すなわち、第８図および第９図は上記スペーサ
の溶接装置の平面図および縦断側面図であつて、
スペーサの組立溶接に際しては、所定位置にセツ
トされたスペーサ保持治具１０上に、隣接する４
個の円筒部材の中心空間にスペーサ保持治具１０
から立設された支持ピン１１が位置するように溶
接されるべき円筒部材１を縦横に整列配設し、そ
の整列された円筒部材の外周部にサイドバンド１
２を当接した後、押圧機構の各移動部材１３をそ
れぞれ円筒部材側に移動させて、各押圧ピン１４
ａ，１４ｂによつて外圧調整可能に押圧して、核
燃料スペーサを適正状態に拘束する。 That is, FIGS. 8 and 9 are a plan view and a vertical side view of the spacer welding device, and
When assembling and welding the spacer, the adjacent four
spacer holding jig 10 in the center space of the cylindrical member.
The cylindrical members 1 to be welded are arranged vertically and horizontally so that the support pins 11 erected from
2, each moving member 13 of the pressing mechanism is moved to the cylindrical member side, and each pressing pin 14 is moved to the side of the cylindrical member.
a and 14b, the nuclear fuel spacer is pressed in an adjustable manner to restrain the nuclear fuel spacer in a proper state.
そこで、溶接チヤンバーを密封し、溶接チヤン
バー内を不活性ガスで置換した後、レーザ光また
は非消耗式電極によつて、溶接されるべき円筒部
材１の各溶接面、円筒部材１とサイドバンド１２
との接合面、および円筒部材１と連結部材１５と
の接合面の溶接が行なわれる。一方この溶接中に
は、各被包ガス導入口から常時不活性ガスが導入
され、この不活性ガスの流通によつて溶接部のシ
ールド、冷却が行なわれる。 Therefore, after sealing the welding chamber and replacing the inside of the welding chamber with an inert gas, each welding surface of the cylindrical member 1 to be welded, the cylindrical member 1 and the side band 12 are welded using a laser beam or a non-consumable electrode.
Welding is performed on the joint surface between the cylindrical member 1 and the connecting member 15, and between the cylindrical member 1 and the connecting member 15. On the other hand, during this welding, inert gas is constantly introduced from each encapsulated gas inlet, and the welded portion is shielded and cooled by the flow of this inert gas.
そして、溶接後においては、押圧機構における
押圧ピン１４ａ，１４ｂを後退させた後、熱収縮
により強固に拘束された核燃料スペーサを、図示
しないエアシリンダにより上動される押し上げピ
ンによつて押し上げ、スペーサ保持治具から取り
出す。 After welding, after the pressing pins 14a and 14b in the pressing mechanism are retreated, the nuclear fuel spacer, which has been firmly restrained by heat contraction, is pushed up by a lifting pin that is moved upward by an air cylinder (not shown), and the spacer is Remove from the holding jig.
（考案が解決しようとする問題点）
しかしながら、このような装置においては溶接
完成品を水平に押し上げることが難かしく、わず
かの傾きが生じても支持ピン１１によつて円筒部
材１の外周面にかじりを生じ、溶接完成品の取出
しに時間を要し、また過大な押し上げ力のために
溶接完成品の一部に押し上げピンによる損傷が発
生する等の問題がある。(Problem to be solved by the invention) However, in such a device, it is difficult to push up the welded finished product horizontally, and even if a slight inclination occurs, the support pin 11 can push the welded product up on the outer peripheral surface of the cylindrical member 1. There are problems such as galling, it takes time to take out the welded finished product, and damage caused by the push-up pin to a part of the welded finished product due to excessive pushing up force.
本考案はこのような点に鑑み、溶接完成品の円
滑な取り出しが可能でスペーサの損傷が発生する
ことがないようにしたスペーサ取出装置を得るこ
とを目的とする。 In view of these points, it is an object of the present invention to provide a spacer take-out device that can smoothly take out a welded finished product and prevent damage to the spacer.
（問題点を解決するための手段）
本考案は、核燃料スペーサにおける縦横等間隔
に連接配置された円筒部材で囲まれる空所内に挿
入される各円筒部材を拘束する複数の支持ピン
を、縦横等間隔に支持ピン取付台に突設するとと
もに、上記支持ピン取付台の支持ピン突出側に上
記各支持ピンが挿脱可能な貫通孔を有する溶接台
を配設し、各支持ピンが溶接台の表面から突出す
る位置および引込んだ位置をとり得るように、上
記溶接台および支持ピン取付台のいずれか一方を
少なくとも前記円筒部材の全高以上のストローク
で昇降可能としたことを特徴とするものである。
(Means for Solving the Problems) The present invention has a plurality of support pins that restrain each cylindrical member inserted into a space surrounded by cylindrical members arranged at equal intervals vertically and horizontally in a nuclear fuel spacer. A welding table is provided on the support pin mount protruding from the support pin mount at intervals, and a welding table having a through hole through which each of the support pins can be inserted and removed is arranged on the support pin protruding side of the support pin mount, so that each support pin is connected to the welding table. Either one of the welding table and the support pin mount is movable up and down with a stroke equal to or greater than the total height of the cylindrical member so that it can take a position protruding from the surface and a position retracted. be.
（作用）
スペーサの溶接作業時には、溶接台或は支持ピ
ン取付台を下降或は上昇せしめて支持ピンを溶接
台の表面から突出せしめ、上記支持ピンによつて
溶接台上に縦横等間隔に連接配置されたスペーサ
の円筒部材を拘束支持し、その状態で各部の溶接
を行なう。(Function) When welding a spacer, the welding table or support pin mount is lowered or raised to make the support pins protrude from the surface of the welding table, and the support pins are connected to the welding table at equal intervals vertically and horizontally. The cylindrical member of the arranged spacer is restrained and supported, and each part is welded in this state.
そこで、溶接台或は支持ピン取付台を逆方向に
移動させ、支持ピンを溶接台の表面から引込める
ことによつて溶接完成品を溶接台から自由に取り
出すことができる。 The welded product can then be freely removed from the welding table by moving the welding table or the support pin mount in the opposite direction and retracting the support pin from the surface of the welding table.
（実施例）
以下、第１図乃至第５図を参照して本考案の実
施例について説明する。(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.
第１図および第２図において、符号２０は溶接
装置の基盤であつて、その基盤２０上には表面に
複数の支持ピン２１を縦横等間隔に突設した支持
ピン取付台２２が載置固定されている。一方、上
記基盤２０の下方には駆動シリンダ取付架台２３
が吊設されており、その駆動シリンダ取付架台２
３の下面に空気圧または油圧の駆動シリンダ２４
が装着されている。上記駆動シリンダ取付架台２
３内には、上記駆動シリンダ２４のピストンロツ
ド２５に連結されそのピストンロツド２５によつ
て上下動される駆動板２６が配設されており、そ
の駆動板２６から上方に突設された連杆２７が前
記基盤２０を貫通し上方に突出せしめられ、その
連杆２７の頂部に溶接台２８が固着されている。
また、上記溶接台２８には、前記支持ピン取付台
２２から突設された各支持ピン２１と対応する位
置にその支持ピン２１に嵌合する貫通孔２８ａが
穿設されている。 In FIGS. 1 and 2, reference numeral 20 denotes a base of the welding device, and a support pin mount 22 having a plurality of support pins 21 protruding from its surface at equal intervals vertically and horizontally is mounted and fixed on the base 20. has been done. On the other hand, below the base 20 is a drive cylinder mounting frame 23.
is suspended, and its drive cylinder mounting frame 2
Pneumatic or hydraulic drive cylinder 24 on the underside of 3
is installed. Above drive cylinder mounting frame 2
A drive plate 26 connected to the piston rod 25 of the drive cylinder 24 and moved up and down by the piston rod 25 is disposed inside the cylinder 3, and a connecting rod 27 projects upward from the drive plate 26. A welding table 28 is fixed to the top of the connecting rod 27 which penetrates the base 20 and projects upward.
Further, the welding table 28 is provided with through holes 28a in positions corresponding to the respective support pins 21 protruding from the support pin mount 22, into which the support pins 21 fit.
しかして、スペーサ３０の溶接に際しては、第
１図に示すように、駆動シリンダ２４によつて作
動される駆動板２６を介して溶接台２８が下降位
置に位置せしめられ、支持ピン２１が溶接台２８
の貫通孔２８ａから、溶接加工されるスペーサ３
０の円筒部材３０ａの全高以上にその表面から突
出せしめられている。そこで上記溶接台２８上に
溶接加工されるスペーサの円筒部材３０ａを装架
していくことにより、各支持ピン２１によつて各
円筒部材３０ａが縦横等間隔に適正に支持拘束さ
れ、この状態において、円筒部材３０ａの相互に
連接した部分の溶接を行なうことができる。 When welding the spacer 30, as shown in FIG. 28
The spacer 3 to be welded from the through hole 28a of
It is made to protrude from the surface of the cylindrical member 30a by an amount greater than the total height of the cylindrical member 30a. Therefore, by mounting the cylindrical members 30a of the spacer to be welded on the welding table 28, each cylindrical member 30a is appropriately supported and restrained at equal intervals vertically and horizontally by each support pin 21, and in this state , the mutually connected portions of the cylindrical member 30a can be welded.
そこで、溶接後一定の冷却時間を経過したら、
駆動シリンダ２４によつて駆動板２６を上昇せし
め、これによつて溶接台２８を、第２図に示すよ
うに、その表面から支持ピン２１の先端が突出し
ない位置まで持ち上げれば、溶接完成品は各支持
ピン２１による拘束かか解除される。したがつ
て、上記溶接完成品は溶接台上に載置されただけ
の状態となり、容易にその取り出しを行なうこと
ができる。 Therefore, after a certain cooling time has passed after welding,
When the drive plate 26 is raised by the drive cylinder 24 and thereby the welding table 28 is lifted to a position where the tip of the support pin 21 does not protrude from the surface as shown in FIG. 2, the welded finished product is produced. is restrained by each support pin 21 or released. Therefore, the welded finished product is simply placed on the welding table and can be easily taken out.
上記実施例おいては、駆動シリンダによつて溶
接台２８を上下動するようにしたものを示した
が、駆動モータ３１によつて回転駆動されるネジ
軸３２に駆動板２６を螺合させ、ネジ軸３２の回
転によつて駆動板２６を案内杆３３に沿つて上下
動させるようにしてもよい。 In the above embodiment, the welding table 28 is moved up and down by a drive cylinder, but the drive plate 26 is screwed onto a screw shaft 32 that is rotationally driven by a drive motor 31. The drive plate 26 may be moved up and down along the guide rod 33 by rotation of the screw shaft 32.
また、上記実施例においては、溶接台２８を支
持ピン取付台２２に対して上下動するようにした
ものを示したが、第４図および第５図に示すよう
に、支持ピン取付台２２を溶接台２８に対して上
下動可能とすることもできる。したがつて、この
場合には支持ピン取付台２２を下降させ、溶接台
２８から支持ピン２１を下方に引き抜くことによ
つて、溶接完成品を溶接台２８から取り出すこと
ができる。 Furthermore, in the above embodiment, the welding table 28 is moved up and down with respect to the support pin mount 22, but as shown in FIGS. 4 and 5, the support pin mount 22 is It can also be made vertically movable relative to the welding table 28. Therefore, in this case, the welded finished product can be taken out from the welding table 28 by lowering the support pin mount 22 and pulling out the support pin 21 downward from the welding table 28.
本考案は上述したように構成したので、溶接完
成品は面基準となる溶接台に載置された状態で、
支持ピンの相対的引き抜きが行なわれる。したが
つて、溶接完成品の取り出しに際してその溶接完
成品に損傷が与えられることがなく、水平状態を
維持したまま円滑に取り出すことができる。
Since the present invention is configured as described above, the welded finished product is placed on the welding table that is the plane reference, and
A relative withdrawal of the support pin takes place. Therefore, when the welded finished product is taken out, the welded finished product is not damaged and can be taken out smoothly while maintaining the horizontal state.
第１図および第２図は本考案のスペーサ取出装
置の一部縦断側面図であり、第１図は溶接時、第
２図は溶接完成品の取出時を示す図、第３図、第
４図、第５図はそれぞれ本考案の他の実施例を示
す図、第６図は核燃料スペーサの平面図、第７図
は同上側面図、第８図は従来のスペーサ溶接装置
の平面図、第９図は同上縦断側面図である。
２１……支持ピン、２２……支持ピン取付台、
２４……駆動シリンダ、２８……溶接台、２８ａ
……貫通孔、３０……スペーサ、３０ａ……円筒
部材。
1 and 2 are partial vertical sectional side views of the spacer take-out device of the present invention, with FIG. 1 showing the welding process, FIG. 2 showing the welded product being taken out, and FIGS. 5 and 5 respectively show other embodiments of the present invention, FIG. 6 is a plan view of a nuclear fuel spacer, FIG. 7 is a side view of the same, and FIG. 8 is a plan view of a conventional spacer welding device. FIG. 9 is a longitudinal sectional side view of the same as above. 21...Support pin, 22...Support pin mounting base,
24... Drive cylinder, 28... Welding table, 28a
...Through hole, 30...Spacer, 30a...Cylindrical member.
Claims (1)
された円筒部材で囲まれる空所内に挿入される各
円筒部材を拘束する複数の支持ピンを、縦横等間
隔に支持ピン取付台に突設するとともに、上記支
持ピン取付台の支持ピン突出側に上記各支持ピン
が挿脱可能な貫通孔を有する溶接台を配設し、各
支持ピンが溶接台の表面から突出する位置および
引込んだ位置をとり得るように、上記溶接台およ
び支持ピン取付台のいずれか一方を少なくとも前
記円筒部材の全高以上のストロークで昇降可能と
したことを特徴とする、核燃料スペーサ装置のス
ペーサ溶接取出装置。 A plurality of support pins for restraining each cylindrical member inserted into a space surrounded by cylindrical members arranged at equal intervals vertically and horizontally in the nuclear fuel spacer are protruded from the support pin mounting base at equal intervals vertically and horizontally, and A welding table having a through hole into which each of the above-mentioned support pins can be inserted and removed is arranged on the support pin protruding side of the pin mount, so that each support pin can take a protruding position or a retracted position from the surface of the welding table. A spacer welding and extraction device for a nuclear fuel spacer device, characterized in that either one of the welding table and the support pin mount can be raised and lowered with a stroke that is at least greater than the total height of the cylindrical member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174454U JPH049088Y2 (en) | 1987-11-17 | 1987-11-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987174454U JPH049088Y2 (en) | 1987-11-17 | 1987-11-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0180271U JPH0180271U (en) | 1989-05-30 |
| JPH049088Y2 true JPH049088Y2 (en) | 1992-03-06 |
Family
ID=31466310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987174454U Expired JPH049088Y2 (en) | 1987-11-17 | 1987-11-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH049088Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965800A (en) * | 1982-09-01 | 1984-04-14 | ウエスチングハウス エレクトリツク コ−ポレ−シヨン | Welding jig and method for lattice and sleeve |
-
1987
- 1987-11-17 JP JP1987174454U patent/JPH049088Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965800A (en) * | 1982-09-01 | 1984-04-14 | ウエスチングハウス エレクトリツク コ−ポレ−シヨン | Welding jig and method for lattice and sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0180271U (en) | 1989-05-30 |
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