JPH0558516B2 - - Google Patents
Info
- Publication number
- JPH0558516B2 JPH0558516B2 JP60217330A JP21733085A JPH0558516B2 JP H0558516 B2 JPH0558516 B2 JP H0558516B2 JP 60217330 A JP60217330 A JP 60217330A JP 21733085 A JP21733085 A JP 21733085A JP H0558516 B2 JPH0558516 B2 JP H0558516B2
- Authority
- JP
- Japan
- Prior art keywords
- rabbit
- inner cylinder
- irradiation
- cylinder
- flow
- 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
- 241000283973 Oryctolagus cuniculus Species 0.000 claims description 40
- 238000005192 partition Methods 0.000 claims description 14
- 239000012530 fluid Substances 0.000 description 12
- 230000005855 radiation Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000126 substance 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
Description
【発明の詳細な説明】
産業上の利用分野
本発明は原子炉の照射筒の改良に関し、更に詳
細にのべると、原子力関係の利用設備等で、原子
炉内において試料に放射線を照射し、中性子照射
による化学的性質や、物理的性質等の変化を調べ
るため、及びラジオアイソトープの生産等のため
に、原子炉内での試料照射場所となる照射筒の改
良に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to the improvement of irradiation tubes for nuclear reactors, and more specifically, in nuclear power-related equipment, etc., a sample is irradiated with radiation in a nuclear reactor and neutrons are emitted. This project relates to the improvement of irradiation tubes, which serve as sample irradiation sites within nuclear reactors, in order to investigate changes in chemical and physical properties due to irradiation, and for the production of radioisotopes.
本発明による照射筒は、試料取出し方向への気
体又は液体の流れを与えるための専用流路を付属
させることにより、複数の試料を内蔵した容器
（以下ラビツトという）の個別取出しを可能にす
ることを特徴とする。 The irradiation tube according to the present invention enables containers containing multiple samples (hereinafter referred to as rabbits) to be taken out individually by being attached with a dedicated channel for providing a flow of gas or liquid in the sample removal direction. It is characterized by
従来技術と問題点
従来の照射筒は第１図に示す様にラビツト１０
を照射筒内まで導く案内管１を有する内筒４、ラ
ビツトを受け止めかつラビツトの搬送用及び冷却
用気体又は液体が自由に通過出来を多孔を有し内
筒の底に設けられた受座２、外側流路を形成する
ように内筒４を囲む外筒３並びに外筒に接続され
て内筒と外筒の間の流体を外部へ導く導管５等に
より構成される。この照射筒は原子炉５０に設け
られる。Conventional technology and problems The conventional irradiation tube is Rabbit 10 as shown in Figure 1.
an inner cylinder 4 having a guide tube 1 that guides the rabbit into the irradiation cylinder; a receiving seat 2 provided at the bottom of the inner cylinder that receives the rabbit and has porous holes through which gas or liquid for transporting and cooling the rabbit can freely pass through; , an outer cylinder 3 surrounding the inner cylinder 4 to form an outer flow path, and a conduit 5 connected to the outer cylinder to guide fluid between the inner cylinder and the outer cylinder to the outside. This irradiation tube is provided in the nuclear reactor 50.
ラビツトは搬送用流体によつて案内管を通つて
照射筒内へ送り込まれる。複数個挿入すると、ラ
ビツトは段重ねとなる。 The rabbit is transported into the irradiation cylinder through the guide tube by the transport fluid. If you insert multiple rabbits, the rabbits will be stacked.
ラビツトを取出す場合は流体の流れを逆にする
が段重ねとなつているラビツトは全数同時に取出
される。このような照射筒では試料への放射線照
射は様々に時間を変えて行なうことが要求される
が上記の如き従来技術では前述の如き照射筒構造
であるためにラビツトの挿入時刻を変えることで
個々の試料の照射時間を調整していた。しかし全
てのラビツトは同時にしか取出し出来ないため、
照射時間の短かい試料でもその照射回数は、照射
時間の長い試料の回数に支配され効率の良い照射
が出来ない欠点があり、その改善が望まれてい
た。 When taking out the rabbits, the flow of the fluid is reversed, but all the rabbits stacked in stacks are taken out at the same time. In such an irradiation tube, it is required to irradiate the sample with radiation at various times, but in the conventional technology as described above, because the irradiation tube has the structure described above, it is possible to individually irradiate the sample by changing the insertion time of the rabbit. The irradiation time of the sample was adjusted. However, all rabbits can only be taken out at the same time, so
Even for samples with a short irradiation time, the number of irradiations is dominated by the number of samples with a long irradiation time, so there is a drawback that efficient irradiation cannot be performed, and an improvement has been desired.
発明の目的
本発明の目的は、上記の如き従来技術の有する
欠点を改善すべく照射時間の長い試料に独立に照
射時間の短かい試料の照射筒へへの挿入及び取出
しを可能にし、照射回数の向上に寄与する原子炉
の照射筒を提供することにある。Purpose of the Invention The purpose of the present invention is to improve the drawbacks of the prior art as described above by making it possible to insert and take out a sample with a short irradiation time into the irradiation tube independently of a sample with a long irradiation time, and to improve the number of irradiation times. The object of the present invention is to provide an irradiation tube for a nuclear reactor that contributes to the improvement of nuclear reactor performance.
問題点を解決するための手段
本発明は、内筒と外筒の間を複数の仕切室に区
切り、かつ内筒に孔を設けることによつて複数流
路を形成するものである。Means for Solving the Problems According to the present invention, a plurality of flow paths are formed by dividing the space between the inner cylinder and the outer cylinder into a plurality of partition chambers, and providing holes in the inner cylinder.
実施例
以下、本発明の一実施例を図面を参照しつつ説
明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
第２図において符号１１は、内筒を示し、この
内筒は照射筒の中心に位置する。この内筒１１の
底にはラビツト１０の受座２が配置されている。
この受座には多くの孔が設けられ（第８図）流体
が自由に流れる構造になつている。 In FIG. 2, reference numeral 11 indicates an inner cylinder, and this inner cylinder is located at the center of the irradiation tube. A receiving seat 2 for a rabbit 10 is arranged at the bottom of this inner cylinder 11.
This seat is provided with many holes (FIG. 8) so that fluid can freely flow through it.
内筒１１の上部８は、外部配管に接続され、流
体の出入りを行なうと同時にラビツトの案内筒で
もある。内筒１１の外側には、外筒１２が配置さ
れ、これら内筒１１と外筒１２の間は、円周方向
へ３等分となるように配置された３つのリブ１５
（第６図参照）によつて３つの仕切室２０，２１，
２２に分割されている。３つのリブ１５は図示の
実施例では内筒１１及び外筒１２と一体に成形さ
れている。仕切室２０，２１の底には、底板７が
設けられている。従つて、仕切室２０，２１，２
２は互いに完全に独立した仕切室に形成されてい
る。 The upper part 8 of the inner cylinder 11 is connected to external piping, allows fluid to enter and exit, and at the same time serves as a guide cylinder for the rabbit. An outer cylinder 12 is arranged on the outside of the inner cylinder 11, and between the inner cylinder 11 and the outer cylinder 12 are three ribs 15 arranged so as to divide the cylinder into three equal parts in the circumferential direction.
(See Fig. 6) into three compartments 20, 21,
It is divided into 22 parts. In the illustrated embodiment, the three ribs 15 are integrally formed with the inner cylinder 11 and the outer cylinder 12. A bottom plate 7 is provided at the bottom of the partitions 20 and 21. Therefore, the partitions 20, 21, 2
2 are formed into partition chambers completely independent from each other.
外筒１２の上部には３本の連続管６Ａ，６Ｂ及
び６Ｃが接続されこれら連続管は流体の出し入れ
のため外部配管に接続されている。３本の連結管
６Ａ，６Ｂ及び６Ｃは、それぞれ３つの仕切室２
０，２１，２２の夫々に接続されている。仕切室
２０，２１はそれぞれ内筒１１に設けられた孔３
０，３１によつて内筒内に通じている。 Three continuous pipes 6A, 6B, and 6C are connected to the upper part of the outer cylinder 12, and these continuous pipes are connected to external piping for taking in and out fluid. The three connecting pipes 6A, 6B and 6C each have three partitions 2.
0, 21, and 22, respectively. The partition chambers 20 and 21 each have a hole 3 provided in the inner cylinder 11.
0,31 communicates with the inside of the inner cylinder.
第３図は、１番上のラビツトの取出しを示した
ものである。まず、連結管６Ａを通じて仕切室２
０へ流体を導入する。導入された流体は、内筒１
１にあげられた孔３０を通つて内筒内に流れ込
む。この孔３０は１番上のラビツトと中間ラビツ
トの境に位置しており、孔３０からの流体はここ
で上下に分かれて流れる。上方への流れは１番上
のラビツトの脇を通り内筒上部の案内管８を通つ
て照射筒外へ出て行く。この流れは１番上のラビ
ツトに上側の圧力が下側の圧力よりも低くなる差
圧を生じる。その結果ラビツトは、下からの圧力
で押される形で上昇し、案内管８を通つて照射筒
外に取り出される。 FIG. 3 shows the removal of the top rabbit. First, the partition chamber 2 is connected through the connecting pipe 6A.
Introduce fluid to 0. The introduced fluid flows into the inner cylinder 1
It flows into the inner cylinder through the hole 30 listed in 1. This hole 30 is located at the boundary between the uppermost rabbit and the middle rabbit, and the fluid from the hole 30 is divided into upper and lower parts and flows there. The upward flow passes by the top rabbit, passes through the guide tube 8 at the top of the inner cylinder, and exits the irradiation cylinder. This flow creates a pressure differential in the top rabbit such that the pressure above is lower than the pressure below. As a result, the rabbit rises under pressure from below and is taken out of the irradiation tube through the guide tube 8.
一方、下方への流れは、残されたラビツトの脇
を通つて流れて行くときに放射線の照射によつて
ラビツトから発生する熱を奪いラビツトの冷却を
しつつ、内筒１１の受座２の多孔１３を通つて仕
切室２２へ流れ込み連結管６Ｃから出て行く。 On the other hand, when the downward flow passes by the remaining rabbit, it removes the heat generated from the rabbit by radiation irradiation and cools the rabbit, while also cooling the rabbit. It flows into the partition chamber 22 through the porous hole 13 and exits from the connecting pipe 6C.
中間部ラビツトの取出しは、仕切室２０，２１
を結ぶことにより前述と同じ要領で行なうことが
出来るので、説明は省略する。最下部のラビツト
取出しは、連結管６Ｃから導入し、内筒上部の案
内管８から流れ出る流路を結べば良い。これは、
従来の方式と同様である。 The middle rabbit can be removed from the partitions 20 and 21.
This can be done in the same manner as described above by tying the , so the explanation will be omitted. To take out the rabbit at the bottom, it is sufficient to connect the flow path that is introduced from the connecting pipe 6C and flows out from the guide pipe 8 at the upper part of the inner cylinder. this is,
This is the same as the conventional method.
第１１図で前述のラビツト取出しにそくした管
路形成を説明する。１番上のラビツト取出しは、
方向切換弁６０を取出し位置にし、ライン４６と
４０を結ぶ。次に弁６１を開にして仕切室２０へ
流体を流し内筒内上方への流れはライン４１から
ライン４７へ戻される。同じく下方への流れは弁
６４を開にして仕切室２２からライン４２を経て
ライン４７へ戻される。 With reference to FIG. 11, the formation of the conduit in accordance with the above-mentioned rabbit extraction will be explained. The top rabbit removal is
Directional switching valve 60 is placed in the removal position and lines 46 and 40 are connected. Next, the valve 61 is opened to allow the fluid to flow into the partition chamber 20 and the flow upward in the inner cylinder is returned from the line 41 to the line 47. Similarly, the downward flow is returned from the compartment 22 to the line 47 via the line 42 with the valve 64 open.
但し、この場合弁６２と６３は閉とする。 However, in this case, valves 62 and 63 are closed.
中間部ラビツト取出しは弁６２を開いて仕切室
２１へ流体を流し、内筒内上方への流れは、ライ
ン４１からライン４７へ戻される。同じく下方へ
の流れは弁６４を開にして仕切弁２２からライン
４２を経てライン４７へ戻る。但し弁６１と６３
は閉とする。 To take out the intermediate rabbit, the valve 62 is opened to allow the fluid to flow into the partition chamber 21, and the flow upward into the inner cylinder is returned from the line 41 to the line 47. Similarly, the downward flow returns from gate valve 22 to line 47 via line 42 with valve 64 open. However, valves 61 and 63
shall be closed.
最下部のラビツト取出しは、弁６３を開として
仕切室２２へ流体を流し、弁６１，６２及び６４
を閉とする。 To take out the rabbit at the bottom, valve 63 is opened to allow fluid to flow into the partition chamber 22, and valves 61, 62 and 64 are opened.
Let be closed.
尚、符号７０はラビツトを挿入又は取出すため
の装置である。 Incidentally, reference numeral 70 is a device for inserting or removing the rabbit.
発明の効果
本発明によれば、上記のように、下方ラビツト
に影響を与えることなく、上方ラビツトの挿入及
び取出しが随意に行なうことが出来るので、試料
の照射回数を大巾に向上出来、照射筒の利用効率
が向上するとともに、内筒と外筒の間に個別取出
し流路を形成することにより、照射筒外形が複雑
形状にならず、原子炉等への設置、交換が容易と
なる。またラビツトを取出し中にも、残りのラビ
ツトの冷却が十分行なえる等、多くの利点が期待
できる等の実益がある。Effects of the Invention According to the present invention, as described above, the upper rabbit can be inserted and removed at will without affecting the lower rabbit, so the number of times the sample is irradiated can be greatly increased. In addition to improving the utilization efficiency of the cylinder, by forming an individual extraction flow path between the inner cylinder and the outer cylinder, the external shape of the irradiation cylinder does not become complicated, and installation and replacement in a nuclear reactor or the like is facilitated. Further, even while the rabbit is being removed, the remaining rabbit can be sufficiently cooled, and many other benefits can be expected.
第１図は従来の照射筒の概略断面図、第２図は
本発明に係る照射筒の概略断面図、第３図は最上
部のラビツトを取出している状態を示す一部断面
図、第４図は中間のラビツトを取出している状態
を示す一部断面図、第５図は第１図のＥ−Ｅ線断
面図、第６図は第１図のＡ−Ａ線断面図、第７図
は第１図のＢ−Ｂ線断面図、第８図は第１図のＣ
−Ｃ線断面図、第９図は第７図のＤ−Ｄ線断面
図、第１０図は内筒の展開図、第１１図は流路の
系統図、第１２図は方向切換弁の一つの作動状態
を示す説明図である。
１０…ラビツト、１１…内筒、１２…外筒、２
０，２１，２２…仕切室、３０，３１…孔。
FIG. 1 is a schematic sectional view of a conventional irradiation tube, FIG. 2 is a schematic sectional view of an irradiation tube according to the present invention, FIG. 3 is a partial sectional view showing a state in which the uppermost rabbit is taken out, and FIG. The figure is a partial sectional view showing a state in which the middle rabbit is taken out, Figure 5 is a sectional view taken along line E-E in Figure 1, Figure 6 is a sectional view taken along line A-A in Figure 1, and Figure 7 is a sectional view taken along the line B-B in Fig. 1, and Fig. 8 is a sectional view taken along line C in Fig. 1.
9 is a sectional view taken along line D-D in FIG. FIG. 3 is an explanatory diagram showing two operating states. 10... Rabbit, 11... Inner cylinder, 12... Outer cylinder, 2
0, 21, 22... partition, 30, 31... hole.
Claims (1)
ツトが重ねて配置される内筒と、前記外筒と内筒
との間に設けられた複数の独立の仕切室と、前記
内筒に設けられた複数の孔とを備えて成り、該複
数の孔は前記ラビツト間に配置されていることを
特徴とする原子炉の照射筒。1. An outer cylinder, an inner cylinder inserted into the outer cylinder and in which a plurality of rabbits are arranged one on top of the other, a plurality of independent partitions provided between the outer cylinder and the inner cylinder, and the inner cylinder. 1. A nuclear reactor irradiation tube comprising: a plurality of holes provided in the irradiation tube, the plurality of holes being arranged between the rabbits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217330A JPS6276499A (en) | 1985-09-30 | 1985-09-30 | Irradiation cylinder for nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60217330A JPS6276499A (en) | 1985-09-30 | 1985-09-30 | Irradiation cylinder for nuclear reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6276499A JPS6276499A (en) | 1987-04-08 |
| JPH0558516B2 true JPH0558516B2 (en) | 1993-08-26 |
Family
ID=16702484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60217330A Granted JPS6276499A (en) | 1985-09-30 | 1985-09-30 | Irradiation cylinder for nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6276499A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107481775B (en) * | 2017-08-18 | 2019-04-09 | 中国工程物理研究院核物理与化学研究所 | A kind of reactor sample irradiation device |
| WO2020066557A1 (en) | 2018-09-25 | 2020-04-02 | 日本メジフィジックス株式会社 | Target conveyance system, target body, and target transport method |
-
1985
- 1985-09-30 JP JP60217330A patent/JPS6276499A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6276499A (en) | 1987-04-08 |
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