JPH0260159B2 - - Google Patents
Info
- Publication number
- JPH0260159B2 JPH0260159B2 JP59058795A JP5879584A JPH0260159B2 JP H0260159 B2 JPH0260159 B2 JP H0260159B2 JP 59058795 A JP59058795 A JP 59058795A JP 5879584 A JP5879584 A JP 5879584A JP H0260159 B2 JPH0260159 B2 JP H0260159B2
- Authority
- JP
- Japan
- Prior art keywords
- storage
- container
- pellets
- cladding tube
- volume
- 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
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
- Carbon And Carbon Compounds (AREA)
- Packages (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は加圧水型原子炉の燃料集合体に使用さ
れるバーナブルポイズン集合体（BPA）の使用
済バーナブルポイズンロツド（以下、BPRと略
記する）の保管方法に関するものである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to spent burnable poison rods (hereinafter referred to as BPR) of burnable poison aggregates (BPA) used in fuel assemblies of pressurized water reactors. (abbreviated)).
（従来技術と問題点）
加圧水型原子炉発電所では燃料集合体の制御材
の１つとしてバーナブルポイズンロツド（BPR）
及びシンブルプラグと、ホールドダウンスプリン
グ、ホールドダウンバー取り付けナツトを含む上
部構造体からなるバーナブルポイズン集合体
（BPA）が使用されており、これは通常、１サイ
クル使用後に使用済として取り出されるが、燃料
ではないため再処理されることなく廃棄物として
使用済燃料保管プールに貯蔵されている。(Prior art and problems) Burnable poison rod (BPR) is used as one of the control materials for fuel assemblies in pressurized water reactor power plants.
Burnable poison assemblies (BPA), which consist of a superstructure including a thimble plug, a hold-down spring, and a hold-down bar attachment nut, are used, and are usually removed as used after one cycle. Since it is not a fuel, it is stored in spent fuel storage pools as waste without being reprocessed.
しかしこのBPAは今後、原子力発電の拡大と
共に益々増加する見込みであり、その処理法、な
らびに保管法は極めて緊急の課題となつている。 However, this BPA is expected to increase in the future with the expansion of nuclear power generation, and methods for its disposal and storage have become extremely urgent issues.
従来、かかるBPAはその保管に際して大型切
断装置でBPRと上部構造体に切断してプール内
に保管しているが、この保管は単に一時的保管の
域を出ず、半永久的な保管処理としては未だ確立
されていない。しかも、切断されたとは云え、
BPRは全長４ｍ前後に及ぶ長さであり、その容
積が大きく、保管容器、保管施設も尨大なものが
要求され、これが適切な保管方法は現下の重要な
問題点である。 Conventionally, such BPA is stored by cutting it into BPR and superstructure using a large cutting device and storing it in a pool, but this storage is not only temporary storage, but also a semi-permanent storage process. Not yet established. Moreover, even though it was severed,
BPR has a total length of around 4 m, and its volume is large, requiring large storage containers and storage facilities, and the appropriate storage method is an important issue at present.
（発明の目的）
本発明は上述の如き実状に対処し、その問題の
解決を図るもので、BPRを切断し減容化して保
管容器に入れることにより効率的にBPRの保管
を達成することを目的とするものである。(Objective of the Invention) The present invention addresses the above-mentioned actual situation and aims to solve the problem, and aims to efficiently store BPR by cutting the BPR, reducing its volume, and placing it in a storage container. This is the purpose.
（発明の構成）
即ち、本発明の特徴とするところは、その１つ
は、BPRをその上下部端栓を切断し、中のペレ
ツトを取り出すと共に一方、被覆管を巻きとつて
減容化し、これを夫々個別にまとめて保管するこ
とであり、他の１つは、前記取り出したペレツト
及び巻きとつた被覆管の好適な保管方法、即ち、
それらペレツトと被覆管とを保管容器内に内外、
又は一側と他側にまとめて収納し、運搬容器で運
搬して地下設置の貯蔵庫に段積み保管する点にあ
る。(Structure of the Invention) That is, one of the features of the present invention is that the upper and lower end plugs of the BPR are cut off, the pellets inside are taken out, and the cladding tube is wound up to reduce the volume. The other method is to store the pellets and the wound cladding tube separately.
The pellets and cladding tube are stored inside and outside the storage container.
Alternatively, they can be stored together on one side and the other, transported in a transport container, and stored in stacks in an underground storage room.
ここで、使用する保管容器としては円筒型のも
のでも、直方体型のものでも、又、他の任意形状
のものでもよいが、貯蔵庫に効率よく収納し、か
つ作業性からは円筒型、直方体型の容器が最も実
用的である。そして、運搬容器はこの保管容器の
形状に適合したものが使用される。 The storage container used here may be cylindrical, rectangular, or any other shape, but from the viewpoint of efficient storage and workability, cylindrical or rectangular shapes are preferred. containers are the most practical. The transport container used is one that matches the shape of the storage container.
（実施の態様）
以下、更に添付図面を参照し、本発明保管方法
の具体的な態様な説明する。(Embodiments) Hereinafter, specific embodiments of the storage method of the present invention will be explained with further reference to the accompanying drawings.
第１図は本発明の１つの要部をなすBPRの減
容化工程を示しており、上部構造体から取り出さ
れたBPR１の下部及び上部端栓２，３を適宜切
断装置４を用いて順次切断し、中のペレツト６を
取り出して被覆管５を単なる管体となして分離
し、次いでこの被覆管５を径方向に潰して帯状に
減容化し、更に容積を減少させるため過巻状に巻
き取つている。 FIG. 1 shows the BPR volume reduction process which is one of the main parts of the present invention, in which the lower and upper end plugs 2 and 3 of the BPR 1 taken out from the upper structure are sequentially cut using a cutting device 4 as appropriate. It is cut, the pellets 6 inside are taken out and the cladding tube 5 is separated as a simple tube body, and then the cladding tube 5 is crushed in the radial direction to reduce the volume into a band shape, and in order to further reduce the volume, it is rolled into an overwound shape. It's being rolled up.
第２図、第３図は、以上のようにして分離、巻
き取られたペレツト６と被覆管５′を保管するた
めの保管容器７ならびに該保管容器７を後述の地
下貯蔵庫位置まで運搬するための運搬容器８を示
している。 Figures 2 and 3 show a storage container 7 for storing the pellets 6 and cladding tube 5' that have been separated and rolled up as described above, and a storage container 7 for transporting the storage container 7 to an underground storage location to be described later. A transportation container 8 is shown.
即ち、第２図では、同保管容器７は円筒型容器
にて形成され、外側と内側の２重構造になつてい
て、内側にペレツト６、外側に巻装された被覆管
５′が夫々区分収納されるようになつている。そ
して運搬容器８も前記保管容器７に適合して円筒
型形状の容器となつており、適宜、運搬貯蔵に更
なる如く引手９及び吊手９′が設けられている。 That is, in FIG. 2, the storage container 7 is formed of a cylindrical container and has a double structure of an outer and an inner layer, with pellets 6 on the inside and a wrapped cladding tube 5' on the outside. It is now being stored. The transportation container 8 is also a cylindrical container that matches the storage container 7, and is appropriately provided with a handle 9 and a hanger 9' for further transportation and storage.
なお、図では運搬容器８は保管容器７を１個分
収容する構成となつているが、必要ならば複数個
収容可能な大きさとすることもできる。 In the figure, the transport container 8 is configured to accommodate one storage container 7, but if necessary, it can be made large enough to accommodate a plurality of containers.
一方、第３図は、直方体型の保管容器の例であ
り、この場合にはペレツト６と巻装被覆管５′と
を内外に区分収納することもできるが、又、上記
ペレツト６を一方の側に、巻装被覆管５′を他方
の側に、あるいはペレツト６を巻装被覆管５′で
挾むサンドイツチ状に収納することもできる。そ
して、この場合には運搬容器８も直方体形状とな
している。 On the other hand, FIG. 3 shows an example of a rectangular parallelepiped storage container. In this case, the pellets 6 and the wrapped cladding tube 5' can be stored separately inside and outside, but it is also possible to store the pellets 6 in one side. It is also possible to store the wrapped cladding tube 5' on one side, or in the form of a sandwich in which the pellets 6 are sandwiched between the wrapped cladding tubes 5'. In this case, the transport container 8 also has a rectangular parallelepiped shape.
なお、上記保管容器７、運搬容器８は適宜、鉛
被覆を施し得るが、とりわけ運搬容器は鉛被覆を
施しておくことが取扱い上、効果的である。 The storage container 7 and the transport container 8 may be coated with lead as appropriate, but it is particularly effective for handling that the transport container is coated with lead.
第４図は、上記のようにして保管容器７に収納
され、運搬容器８で運搬したBPRを半永久的に
貯蔵するための貯蔵庫１０を示しており、地下に
設置され、周囲は鉛遮蔽壁１０ａで作られてい
て、上部開口部１０ｂには鉛の上蓋１１が開閉可
能に取り付けられている。 FIG. 4 shows a storage 10 for semi-permanently storing the BPR stored in the storage container 7 and transported in the transportation container 8 as described above, and is installed underground and surrounded by a lead shielding wall 10a. A top lid 11 made of lead is attached to the top opening 10b so that it can be opened and closed.
この貯蔵庫１０は通常、保管容器７を段積み保
管可能な広さ、容積となつており、図示していな
いが、必要に応じ上部に保管容器７を収納するた
めの上下動可能なクレーンがレールによつて移動
可能に設置されている。 This storage 10 usually has a size and capacity that allows the storage containers 7 to be stacked and stored.Although not shown, a crane that can move up and down to store the storage containers 7 in the upper part can be installed on rails if necessary. It is movably installed.
そこで、次に上記の各容器、施設を用いて
BPRを保管する態様を説明すると、先ず、第１
図イ〜ニに示す工程に従つてBPRの切断が行な
われるが、この作業は普通、水中で行なわれ、切
断装置４により下部端栓２を切断し（イ図参照）、
次いで上部端栓３を切断して（ロ図参照）、中に
入つているペレツト６、例えばAl2O3ペレツトを
取り出し（ハ図参照）、空の被覆管５を適宜径方
向に潰してロール（図示せず）によつて巻きと
り、減容化する（ニ図参照）。 Therefore, next, we will use each container and facility mentioned above.
To explain how BPR is stored, first
The BPR is cut according to the steps shown in Figures A to D. This work is usually done underwater, and the lower end plug 2 is cut by the cutting device 4 (see Figure A).
Next, the upper end plug 3 is cut off (see figure B), the pellets 6 contained therein, such as Al 2 O 3 pellets, are taken out (see figure C), and the empty cladding tube 5 is appropriately crushed in the radial direction and rolled. (not shown) to reduce the volume (see Figure 2).
そして、この減容化された上記BPRを次に第
２図、第３図に示す保管容器７に巻装被覆管５′
は容器内の外側あるいは一方側に、又、ペレツト
６は容器内の内側あるいは他側に入れて容器内を
満杯となし、運搬容器８に入れて所定の貯蔵庫位
置まで運搬し、クレーンなど適宜手段を併用して
運搬容器８内に入つている保管容器７を取り出
し、貯蔵庫１０の上部の蓋１１を開放状態にして
貯蔵庫内に収納する。 The reduced volume of the BPR is then wrapped around the storage container 7 shown in FIGS. 2 and 3, and the cladding tube 5'
The pellets 6 are placed on the outside or one side of the container, and the pellets 6 are placed inside or on the other side of the container until the container is full.Then, the pellets 6 are placed in a transport container 8 and transported to a predetermined storage location, using an appropriate means such as a crane. The storage container 7 contained in the transport container 8 is taken out using the .
これを順次繰り返し、保管容器７を貯蔵庫１０
内に図示の何く段積みして保管する。 This is repeated one after another, and the storage container 7 is
Store them in the number of stacks shown in the diagram.
かくして、BPRは保管容器７に収納され、地
下に設けられた貯蔵庫１０内で半永久的に保管・
貯蔵される。 In this way, the BPR is stored in the storage container 7 and stored semi-permanently in the underground storage 10.
stored.
（発明の効果）
本発明は以上の如く使用済BPRの上下部端栓
を切断し、中のペレツトを取り出し被覆管を巻き
とることによつてBPRを減容化し、これを保管
する方法であり、使用済BPRをペレツトと被覆
管に分離し、かつ被覆管を巻きとつて保管するも
のであるから、保管のためのスペースが効率よく
利用でき、従来の如き発電所内のプールに収納す
る必要を解消して放射性化されたBPRの保管を
容易ならしめると共に、被覆管を過巻状に巻きと
り保管するため、従来の如き長大な容積の容器を
使用することもなく、保管容器の製作、取扱いを
簡易ならしめBPRの半永久的保管方法として極
めて顕著な効果を奏する。(Effects of the Invention) As described above, the present invention is a method for reducing the volume of BPR by cutting the upper and lower end plugs of used BPR, taking out the pellets inside and winding up the cladding tube, and storing the same. Since the used BPR is separated into pellets and cladding tube, and the cladding tube is rolled up and stored, storage space can be used efficiently and there is no need to store it in the pool inside the power plant as in the case of conventional methods. In addition to making it easier to store dissolved and radioactive BPR, since the cladding tube is rolled up and stored, there is no need to use a container with a large capacity as in the past, making it easier to manufacture and handle storage containers. It is extremely effective as a semi-permanent storage method for BPR.
しかも、保管容器はペレツトと被覆管を区別し
て１つの容器内に収納し、段積みすることによつ
て貯蔵庫に保管するので従来の単にBPRをその
まま保管するのとは根本的に異なり、体積充填率
を大きくして貯蔵庫内容積の有効な利用ができ、
地下設置の貯蔵庫形成と相俟つて今後、その増加
が予測されるBPRの保管方法として実用的効果
が大である。 Moreover, the storage container separates pellets and cladding tubes into one container and stores them in a storage warehouse by stacking them, which is fundamentally different from the conventional method of simply storing BPR as is. By increasing the ratio, the internal volume of the storage can be used effectively,
This has great practical effects as a storage method for BPR, which is expected to increase in the future as underground storage is formed.
第１図イ〜ニはBPRの減容化のための工程図、
第２図はイ，ロは本発明において用いられる
BPR保管容器と運搬容器の各１例を示す斜視図
で、前者は一部切欠して示す。第３図イ，ロは、
本発明において用いられるBPR保管容器と運搬
容器の他の実施例を示す斜視図で、前者は第２図
同様一部切欠して示している。第４図は本発明に
用いられる保管容器貯蔵庫の１例を示す断面図で
ある。
１……BPR、２……BPR下部端栓、３……
BPR上部端栓、４……切断装置、５……被覆管、
５′……巻装被覆管、６……ペレツト、７……保
管容器、８……運搬容器、１０……貯蔵庫、１０
ａ……鉛遮蔽壁、１１……貯蔵庫の上蓋。
Figure 1 A to D are process diagrams for BPR volume reduction.
Figure 2 shows A and B used in the present invention.
FIG. 2 is a perspective view showing one example of a BPR storage container and one example of a transport container, with the former partially cut away. Figure 3 A and B are
FIG. 2 is a perspective view showing another embodiment of the BPR storage container and transportation container used in the present invention, with the former partially cut away as in FIG. 2; FIG. 4 is a sectional view showing an example of a storage container storage used in the present invention. 1...BPR, 2...BPR lower end plug, 3...
BPR upper end plug, 4... cutting device, 5... cladding tube,
5'...Wrapped cladding tube, 6...Pellet, 7...Storage container, 8...Transportation container, 10...Storage, 10
a...Lead shielding wall, 11...Top lid of storage.
Claims (1)
下部端栓を切断し、中のペレツトを取り出すと共
に、被覆管を巻きとつて減容化し、取り出したペ
レツトと、巻きとつた被覆管を夫々個別に集め保
管することを特徴とするバーナブルポイズンロツ
ドの減容保管方法。 ２ 使用済バーナブルポイズンロツドを、その上
下部端栓を切断し、中のペレツトを取り出すと共
に、被覆管を巻きとつて減容化し、次いで前記被
覆管とペレツトを夫々保管容器内部に区分して収
納した後、該保管容器を運搬容器に入れて運搬
し、地下に設置した貯蔵庫内に順次段積みして保
管することを特徴とするバーナブルポイズンロツ
ドの減容保管方法。 ３ 被覆管を保管容器内において、外側に入れ、
一方、取り出したペレツトを内側に収納する特許
請求の範囲第２項記載のバーナブルポイズンロツ
ドの減容保管方法。 ４ 被覆管を保管容器内において、一方側に入
れ、一方、取り出したペレツトを容器内他方側に
収納する特許請求の範囲第２項記載のバーナブル
ポイズンロツドの減容保管方法。 ５ 保管容器及び運搬容器が円筒型容器である特
許請求の範囲第２項、第３項又は第４項記載のバ
ーナブルポイズンロツドの減容保管方法。 ６ 保管容器及び運搬容器が直方体容器である特
許請求の範囲第２項、第３項又は第４項記載のバ
ーナブルポイズンロツドの減容保管方法。[Claims] 1 A used burnable poison rod is cut off at its upper and lower end plugs, the pellets inside are taken out, and the cladding tube is rolled up to reduce the volume, and the taken out pellets and the unrolled pellets are removed. A method for reducing and storing the volume of burnable poison rods, which is characterized by collecting and storing each cladding tube individually. 2 Cut off the upper and lower end plugs of the used burnable poison rod, take out the pellets inside, reduce the volume by winding up the cladding tube, and then separate the cladding tube and pellets into storage containers, respectively. This method for reducing the volume of burnable poison rods is characterized in that the storage containers are transported in a transport container and then stacked and stored in a storage warehouse installed underground. 3 Place the cladding tube inside the storage container and place it on the outside.
On the other hand, the volume reduction storage method for burnable poison rods according to claim 2, wherein the pellets taken out are stored inside. 4. A method for reducing the volume of burnable poison rods according to claim 2, wherein the cladding tube is placed in one side of a storage container, and the pellets taken out are stored in the other side of the container. 5. The volume reduction storage method for burnable poison rods according to claim 2, 3, or 4, wherein the storage container and the transportation container are cylindrical containers. 6. The volume reduction storage method for burnable poison rods according to claim 2, 3, or 4, wherein the storage container and the transportation container are rectangular parallelepiped containers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59058795A JPS60201293A (en) | 1984-03-26 | 1984-03-26 | Volume-reduction custody method of burnable poison rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59058795A JPS60201293A (en) | 1984-03-26 | 1984-03-26 | Volume-reduction custody method of burnable poison rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60201293A JPS60201293A (en) | 1985-10-11 |
| JPH0260159B2 true JPH0260159B2 (en) | 1990-12-14 |
Family
ID=13094510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59058795A Granted JPS60201293A (en) | 1984-03-26 | 1984-03-26 | Volume-reduction custody method of burnable poison rod |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60201293A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05188185A (en) * | 1992-01-10 | 1993-07-30 | Nuclear Fuel Ind Ltd | Burnable-poison-rod processing apparatus |
| US9153349B2 (en) * | 2012-03-12 | 2015-10-06 | Areva Inc. | Method for recycling nuclear control rods and recycled control rod section |
-
1984
- 1984-03-26 JP JP59058795A patent/JPS60201293A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60201293A (en) | 1985-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9666318B2 (en) | Storage, transportation and disposal system for used nuclear fuel assemblies | |
| EP0520438B1 (en) | Metal hydride neutron absorber arrangement for a nuclear fuel storage body | |
| US5848111A (en) | Spent nuclear fuel container | |
| US4908515A (en) | Method of efficiently storing spent nuclear fuel rods in a cylindrical container | |
| US20120201340A1 (en) | System and Method for Integration of Wet and Dry Nuclear Fuel Storage | |
| JPS60201293A (en) | Volume-reduction custody method of burnable poison rod | |
| US5881120A (en) | Nuclear fuel assembly storage rack whose cells contain a neutrophage section | |
| JPH0224599A (en) | Cask for transporting radioactive material | |
| US5180540A (en) | Fuel rod consolidation structure | |
| JP2713644B2 (en) | Post-test preparation of irradiated reactor fuel assemblies | |
| JPH05281395A (en) | Fuel container | |
| JPH09211192A (en) | Transport method of nuclear fuel material | |
| JPH0719033Y2 (en) | Drip tray | |
| JP2003315488A (en) | Spent nuclear fuel container | |
| Schneider et al. | Foreign experience on effects of extended dry storage on the integrity of spent nuclear fuel | |
| JPS645675B2 (en) | ||
| CN115527699A (en) | A modular critical safety storage tank | |
| JPS6328276B2 (en) | ||
| JPH0262029B2 (en) | ||
| Roland et al. | Choosing a spent fuel interim storage system | |
| JPS62140097A (en) | Fuel storage device for nuclear reactor | |
| XA9642800 | MANAGEMENT AND STORAGE OF SPENT FUEL FROM CEA RESEARCH REACTORS | |
| Hunter et al. | Adapting the NUHOMS Interim Storage System for international spent fuel storage needs | |
| Roberts et al. | The Idaho Spent Fuel Project Update-January, 2003 | |
| RU2679007C1 (en) | Storage cover of spent heat-manufacturing assemblies from vver-1000 type reactors |