JPH03172796A - Guide for fuel rod insertion - Google Patents
Guide for fuel rod insertionInfo
- Publication number
- JPH03172796A JPH03172796A JP1310518A JP31051889A JPH03172796A JP H03172796 A JPH03172796 A JP H03172796A JP 1310518 A JP1310518 A JP 1310518A JP 31051889 A JP31051889 A JP 31051889A JP H03172796 A JPH03172796 A JP H03172796A
- Authority
- JP
- Japan
- Prior art keywords
- guide
- fuel rod
- fuel
- spacer
- holder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 88
- 238000003780 insertion Methods 0.000 title claims abstract description 44
- 230000037431 insertion Effects 0.000 title claims abstract description 44
- 125000006850 spacer group Chemical group 0.000 claims abstract description 35
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 8
- 239000000057 synthetic resin Substances 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 206010073306 Exposure to radiation Diseases 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002023 wood 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
- Fuel-Injection Apparatus (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野
本発明は、原子炉施設の燃料集合体の組み立て装置に関
し、さらに詳しくは該燃料枠組み立て装置において燃料
棒を燃料棒スペーサに挿入する際に使用される挿入用ガ
イドに関する。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a fuel assembly assembly device for a nuclear reactor facility, and more particularly to a device used when inserting a fuel rod into a fuel rod spacer in the fuel assembly assembly device. Regarding the insertion guide.
（従来の技術）
原子炉施設の燃料集合体は、ステンレスまた１まニッケ
ル合金から成る燃料棒スペーサに形成された複数の保持
孔に燃料棒を挿入して、その両端を閉じ、燃料棒相互の
間隔を保つと同時に一体としている。(Prior art) Fuel assemblies for nuclear reactor facilities are constructed by inserting fuel rods into a plurality of holding holes formed in a fuel rod spacer made of stainless steel or a nickel alloy, closing both ends of the fuel rods, and connecting the fuel rods to each other. Maintaining distance and at the same time being unified.
従来、燃料棒スペーサに燃料棒を挿入するには、集束装
置の上に間隔をおいて複数設けられたスペーサ保持具に
金属製の燃料棒スペーサを固定し、燃料棒供給装置から
燃料棒を押し出して燃料棒スペーサに挿入し、挿入後に
燃料棒の束の両端部にタイプレートをＶＣ着して一体の
燃料集合体を製作していた。Conventionally, in order to insert a fuel rod into a fuel rod spacer, a metal fuel rod spacer is fixed to a plurality of spacer holders provided at intervals above a focusing device, and the fuel rod is pushed out from a fuel rod feeding device. After insertion, tie plates were attached to both ends of the bundle of fuel rods to form an integrated fuel assembly.
しかしながら、この従来の挿入装置によると燃料棒が最
初の燃料棒スペーサの保持孔に挿入される前にその自重
により撓んでしまい、そのままでは燃料棒スペーサの保
持孔に挿入できなくなってしまう．このため、手で燃料
棒を支持して撓みを防止しながら挿入せざるをえア、そ
のために作業員の放射能被曝という危険が避けられない
ものであった。However, with this conventional insertion device, the fuel rod bends due to its own weight before it is inserted into the holding hole of the first fuel rod spacer, and it cannot be inserted into the holding hole of the fuel rod spacer as it is. For this reason, the fuel rods had to be supported by hand to prevent bending while being inserted, which inevitably exposed workers to the risk of radiation exposure.
また、手作業であるため挿入位置がずれて金属製の燃料
棒スペーサに燃料棒の端部が衝突して燃料棒スペーサま
たは燃料棒自体が傷つき、燃料集合体に欠陥が生ずるお
それがあった。Furthermore, since the insertion is done manually, there is a risk that the end of the fuel rod will collide with the metal fuel rod spacer due to the insertion position being misaligned, damaging the fuel rod spacer or the fuel rod itself, and causing a defect in the fuel assembly.
このような欠点を解決するため、前記スペーサ保持共の
前にガイド保持共を設け、燃料棒スペーサの保持孔と同
数かつ同位置にガイド孔の形成された金属製の挿入用ガ
イドを該ガイド保持共に固定した燃料棒の組み立てｇ、
置は公知である。（特公昭５５−２８０３９号参照）前
記公知の組み立て装置では、挿入用ガイドにより燃料枠
を案内して燃料棒スペーサに挿入するようにしているの
で、燃料棒の撓みを防止して簡単に燃料棒挿入作業が行
なわれるものとなっていた。In order to solve this problem, a guide holder is provided in front of the spacer holder, and a metal insertion guide with guide holes formed in the same number and at the same position as the fuel rod spacer holding holes is used to hold the guide. assembly of fuel rods fixed together g;
The location is known. (Refer to Japanese Patent Publication No. 55-28039.) In the above-mentioned known assembly device, the fuel frame is guided by an insertion guide and inserted into the fuel rod spacer, so that the fuel rod can be easily assembled without bending. The insertion work was to be carried out.
（発明が解決しようとする？Ｓ題）
ところで、挿入用ガイドは燃料棒挿入時の案内に用いる
ものであるから、燃料棒挿入終了後には速やかにこれを
取外し、燃料棒スペーサに保持された燃料棒の束の両端
にタイプレートを装着して、燃料集合体製作を完了し、
引き続いて直ぐに次の燃料集合体製作のための準備をし
なければならない。(Problem S to be solved by the invention) By the way, since the insertion guide is used to guide the fuel rods when they are inserted, they should be removed immediately after the fuel rods have been inserted, and the fuel held in the fuel rod spacers should be removed. Attach tie plates to both ends of the bundle of rods to complete the fuel assembly fabrication.
Immediately thereafter, preparations must be made for the fabrication of the next fuel assembly.
ところが、上記の従来公知の挿入用ガイドはけ金ＩＡ！
！！であり、このため、重量がかさみ取付け・取外しの
作業性が悪くなるとり・う課題があった。However, the above-mentioned conventionally known insertion guide bar IA!
! ! Therefore, there was a problem that the weight increased and the workability of mounting and dismounting became poor.
さらに、上記公知の挿入用ガイドは金属製であるため、
燃料棒と該金属製の挿入用ガイドとが衝突し、燃料棒が
破損するおそれがあった。Furthermore, since the above-mentioned known insertion guide is made of metal,
There was a risk that the fuel rod would collide with the metal insertion guide and the fuel rod would be damaged.
また、燃料棒が金属製の挿入用ガイドを挿通している時
に金属同士の摩擦によって傷を受けるおそれがあった。Furthermore, when the fuel rods are inserted through the metal insertion guides, there is a risk of damage due to friction between metals.
そこで本発明の目的は、挿入用ガイドをガイド保持共に
取付け・取外しする作業が容易であると同時に燃料棒の
破損を防止した燃料棒挿入用ガイドを提供することにあ
る。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a fuel rod insertion guide that facilitates the work of attaching and removing the insertion guide while holding the guide, and at the same time prevents damage to the fuel rods.
（？Ｓ、題を解決するための手段）
上記目的を達成するため、本発明では、燃料棒の挿入用
ガイドを合成ｏｆ脂製としたものである。(?S, Means for Solving the Problem) In order to achieve the above object, in the present invention, the fuel rod insertion guide is made of synthetic resin.
（実施例）
以下に、本発明の実施例を第１図ないし第４図を参照し
て説明する。(Example) Examples of the present invention will be described below with reference to FIGS. 1 to 4.
第３図を参照して、集束波ｒ！１１上にｒｒｒＪ隔をお
いて複数のスペーサ保持共２が設けられ、各スペーサ保
持共２に燃料棒スペーサ３が着脱自在に保持されるよう
になっている。すなわち、スペーサ保持共２はｆＩＳ４
図に示されているように、受体４にキャップ５が開閉自
在に取り付けられζ受体４とキヤ・ンプ５との間には開
放用スプリング６が介装されている。Referring to FIG. 3, the focused wave r! A plurality of spacer holders 2 are provided on the fuel rod 11 at rrrJ intervals, and a fuel rod spacer 3 is detachably held in each spacer holder 2. In other words, spacer holding both 2 is fIS4
As shown in the figure, a cap 5 is attached to the receiver 4 so as to be openable and closable, and an opening spring 6 is interposed between the receiver 4 and the cap 5.
前記燃料棒スペーサ３は、ステンレス、ニッケル合金な
どからなり、燃料棒を保持するための保持孔７が複数形
成されている。The fuel rod spacer 3 is made of stainless steel, nickel alloy, etc., and has a plurality of holding holes 7 for holding the fuel rods.
そして、最も燃料棒挿入側に近い側のスペーサ保持共２
の前には挿入用ガイド８を保持するためのガイド保持共
９が設けられている。このガイド保持共９は前記スペー
サ保持共２と同様な構造となっており、ｔ５４図に示さ
れているように、受体１０にキャップ１１が開閉自在に
支持され、受体１０とキャップ１１との間には開放用ス
プリング１２が介装されている。挿入用ガイド８の構造
については後述する。Then, hold the spacer on the side closest to the fuel rod insertion side.
A guide holder 9 for holding the insertion guide 8 is provided in front of the insertion guide 8. This guide holder 9 has the same structure as the spacer holder 2, and as shown in Fig. An opening spring 12 is interposed between them. The structure of the insertion guide 8 will be described later.
前記集束装置１の前には、第３図に示されているように
燃料棒供給装置１３が配置され、燃料棒１４をガイドす
るための固定ＶＯ−２１５が設けられている。In front of the focusing device 1, as shown in FIG. 3, a fuel rod feeding device 13 is arranged, and a fixed VO-215 for guiding the fuel rods 14 is provided.
本実施例の挿入用ガイド８には、第４図と第１図に示さ
れているように、前記燃料棒スペーサ３の保持孔７と同
数かつ同位置の〃イド孔１６が形成されており、ガイド
保持具９に対する取付け・取外し作業性を良好とするた
め合成１Ｊ（脂から形成され、これによって軽量化され
ている。As shown in FIGS. 4 and 1, the insertion guide 8 of this embodiment has the same number and position of the id holes 16 as the holding holes 7 of the fuel rod spacer 3. In order to improve the workability of attaching and detaching the guide holder 9, it is made of synthetic 1J (oil), thereby reducing the weight.
また燃料棒１４をスムーズに案内するために前記ガイド
孔１６には第２図に示されているようにテーパ１７が形
成されている。本実施例ではガイド孔の両端側にテーパ
が形成されているが、燃料棒挿入側だけに形成してもよ
い。Further, in order to guide the fuel rod 14 smoothly, the guide hole 16 is formed with a taper 17 as shown in FIG. Although tapers are formed on both ends of the guide hole in this embodiment, they may be formed only on the fuel rod insertion side.
以上のように４３威された実施例は、次のように作ｍす
る。The embodiment described above is constructed as follows.
第１図ないし第４図を参照して、スペーサ保持具２とガ
イド保持共９とにそれぞれ燃料棒スペーサ３と挿入用ガ
イド８とを取り付けて固定し、燃料棒供給装置１３から
給送された燃料棒１４は挿入用ガイド８の〃イド孔１６
により案内されて最初の燃料棒スペーサ３の保持孔７に
挿入され、順次後段の燃料棒スペーサ３に挿入される。Referring to FIGS. 1 to 4, the fuel rod spacer 3 and the insertion guide 8 are attached and fixed to the spacer holder 2 and the guide holder 9, respectively, and the fuel rods are fed from the fuel rod supply device 13. The fuel rod 14 is inserted into the id hole 16 of the insertion guide 8.
It is guided by and inserted into the holding hole 7 of the first fuel rod spacer 3, and then sequentially inserted into the subsequent fuel rod spacer 3.
挿入用ガイド８は、合成樹脂から成形され、かつ〃イド
孔１Ｇにテーパ１７が形Ｊ＆されているので、案内がス
ムーズにいく。The insertion guide 8 is molded from synthetic resin, and the guide hole 1G has a taper 17 shaped like J&, so that the guide can be guided smoothly.
燃料棒１４を燃料棒スペーサ３に挿入した後、挿入用ガ
イド８をガイド保持共１４から取り外し、図示しないタ
イプレートを燃料棒１４の束の両端に装着し、組み立て
られた燃料集合体を移動させた後、次の燃料集合体製作
のため、挿入用がイド８を再びガイド保持共９に取り付
ける。燃料棒挿入用ガイド８が合成樹ｍ製で軽量である
ので、この取付け・取外しの作業性が良好なものとなる
。After inserting the fuel rods 14 into the fuel rod spacers 3, the insertion guide 8 is removed from the guide holder 14, tie plates (not shown) are attached to both ends of the bundle of fuel rods 14, and the assembled fuel assembly is moved. After that, the insertion guide 8 is reattached to the guide holder 9 for manufacturing the next fuel assembly. Since the fuel rod insertion guide 8 is made of synthetic wood and is lightweight, the workability of attachment and detachment is good.
（発明の効果）
本発明によれば、燃料棒を燃料棒スペーサに挿入する際
に案内用に用いる燃料棒１申入用ガイドを合成（Ｊｆ
ＪＪｌｔ製で軽量のものとしたので、燃料集合体ごとの
ガイド保持共への取付けおよびガイド保持共からの取外
しの作業性が良好なものとなる。(Effects of the Invention) According to the present invention, a fuel rod 1 application guide used for guiding when inserting a fuel rod into a fuel rod spacer is synthesized (Jf
Since it is made by JJlt and is lightweight, it is easy to attach and remove each fuel assembly from the guide holder.
また、挿入用ガイドが合成樹脂製であるため、燃料棒が
挿入用ガイドに衝突したとしても、燃料が傷ついたりあ
るいは破損したりすることがない。Further, since the insertion guide is made of synthetic resin, even if the fuel rod collides with the insertion guide, the fuel will not be damaged or damaged.
さらに、合成樹脂はそれ自体が潤滑性を有しているので
、金属同士と違って挿入時に摩擦による傷つきや摩耗が
なく、かつ挿入作業もスムーズである。Furthermore, since the synthetic resin itself has lubricating properties, unlike metals, there is no damage or wear due to friction during insertion, and the insertion process is also smooth.
さらにまた、燃料棒挿入用ガイドのガイド孔にテーパを
形成しであるから、燃料棒の案内がスムーズにいく。Furthermore, since the guide hole of the fuel rod insertion guide is tapered, the fuel rod can be guided smoothly.
第１図は、本発明に係る方法を実施するための挿入用ガ
イドの斜視図である。
第２図は、第１図の一部の断面図である。
第３図は、本発明に係る方法を実施するための装置類の
正面図である。
第４図は、１３図と第５図に示すガイド保持共にガイド
を取り付けた状態を示す正面図である。
第１図
１：１１立ベツト ２ニスペーサ保持共３：燃料棒スペ
ーサ ７：保持孔
８：挿入用ガイド ９：〃イド保持共
１３：燃料棒供給装置 １４：燃料棒
１６：ガイド孔 １７：テーパFIG. 1 is a perspective view of an insertion guide for carrying out the method according to the invention. FIG. 2 is a cross-sectional view of a portion of FIG. 1. FIG. 3 is a front view of equipment for carrying out the method according to the invention. FIG. 4 is a front view showing a state in which the guides are attached to both the guide holders shown in FIGS. 13 and 5. FIG. Figure 1: 11 vertical bed 2 Spacer holding 3: Fuel rod spacer 7: Holding hole 8: Insertion guide 9: Id holding 13: Fuel rod supply device 14: Fuel rod 16: Guide hole 17: Taper
Claims (2)
ド孔が形成された燃料棒挿入用ガイドにおいて、該燃料
棒挿入ガイドが合成樹脂から形成されて成ることを特徴
とする挿入用ガイド。(1) A fuel rod insertion guide in which guide holes are formed in the same number and at the same positions as the holding holes of the fuel rod spacer, characterized in that the fuel rod insertion guide is made of synthetic resin.
を特徴とする特許請求の範囲第１項記載の挿入用ガイド
。(2) The insertion guide according to claim 1, wherein a taper is formed on the insertion side of the guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1310518A JPH03172796A (en) | 1989-12-01 | 1989-12-01 | Guide for fuel rod insertion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1310518A JPH03172796A (en) | 1989-12-01 | 1989-12-01 | Guide for fuel rod insertion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03172796A true JPH03172796A (en) | 1991-07-26 |
Family
ID=18006197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1310518A Pending JPH03172796A (en) | 1989-12-01 | 1989-12-01 | Guide for fuel rod insertion |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03172796A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111997A (en) * | 1983-10-28 | 1985-06-18 | レアクトルブレンエレメント、ウニオン、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | Method of assembling nuclear reactor fuel aggregate |
-
1989
- 1989-12-01 JP JP1310518A patent/JPH03172796A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60111997A (en) * | 1983-10-28 | 1985-06-18 | レアクトルブレンエレメント、ウニオン、ゲゼルシヤフト、ミツト、ベシユレンクテル、ハフツング | Method of assembling nuclear reactor fuel aggregate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102017206139A1 (en) | Plant and method for the automated production of a cable set | |
| ES8701416A1 (en) | Set-up for repairing a nuclear fuel assembly. | |
| JPH02257097A (en) | Takeoff method and apparatus for locking sleeve from detachable guide tube of fuel assembly of nuclear reactor | |
| JPH03172796A (en) | Guide for fuel rod insertion | |
| GR3023796T3 (en) | Method to carry out bends and relative devices | |
| DE102017206141B4 (en) | System and method for the automated preparation and provision of individual line elements for a cable set | |
| US3016081A (en) | Waveguides and methods of bending waveguides | |
| CN111600110A (en) | 5G base station filter production process and system | |
| CN215281127U (en) | Scale guard shield suitable for cutting machine | |
| JPS5913209A (en) | Handling structure for excessive length of optical fiber | |
| JP2002315122A (en) | Hanging pulley for aerial transmission line | |
| CN209593221U (en) | A kind of fully automatic electric machine stator substandard products recycling excision tooling | |
| CN213400861U (en) | Amorphous magnetic core is with coiling machine of being convenient for location | |
| CN209520650U (en) | Walk the feeding mechanism of scheming | |
| CN221796755U (en) | Portable unhooking device of lifting hook | |
| CN216067521U (en) | Buckle pick-up mechanism and jig | |
| CN217570569U (en) | Bending device for hardware machining | |
| CN210633316U (en) | Bevel edge grinding clamp convenient to disassemble and assemble | |
| JP4664468B2 (en) | Radiation shield and its installation method | |
| CN216462229U (en) | Stainless steel bar convenient to process | |
| CN213602313U (en) | Wire stripping machine equipment | |
| CN212310503U (en) | Bending one-step forming tool for electric power anchor rod | |
| CN216781111U (en) | Milling tool for minimally invasive scalpel bracket | |
| CN210359418U (en) | Curved surface part spot facing work anchor clamps | |
| KR101498357B1 (en) | Jig for heat treatment of bull gear |