JPH05273394A - Storage building for spent nuclear fuel - Google Patents

Storage building for spent nuclear fuel

Info

Publication number
JPH05273394A
JPH05273394A JP4067681A JP6768192A JPH05273394A JP H05273394 A JPH05273394 A JP H05273394A JP 4067681 A JP4067681 A JP 4067681A JP 6768192 A JP6768192 A JP 6768192A JP H05273394 A JPH05273394 A JP H05273394A
Authority
JP
Japan
Prior art keywords
nuclear fuel
heat
spent nuclear
storage
columnar container
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.)
Granted
Application number
JP4067681A
Other languages
Japanese (ja)
Other versions
JP3010889B2 (en
Inventor
Tatsuya Futami
達也 二見
Kazuaki Sakamoto
和昭 坂本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Metal Mining Co Ltd
Original Assignee
Sumitomo Metal Mining Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co Ltd filed Critical Sumitomo Metal Mining Co Ltd
Priority to JP4067681A priority Critical patent/JP3010889B2/en
Priority to TW082102045A priority patent/TW235365B/zh
Priority to KR1019930004823A priority patent/KR970011259B1/en
Publication of JPH05273394A publication Critical patent/JPH05273394A/en
Application granted granted Critical
Publication of JP3010889B2 publication Critical patent/JP3010889B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin
    • Y02E30/30Nuclear fission reactors

Landscapes

  • Monitoring And Testing Of Nuclear Reactors (AREA)

Abstract

PURPOSE:To obtain a dry spent nuclear fuel storage building capable of raising radiation efficiency out of a vessel containing spent nuclear fuel and reserving even high temperature spent nuclear fuel. CONSTITUTION:A storage cell 5 vertically supporting column shape vessels containing spent nuclear fuel is constituted of metal blocks and the column shape vessels 17 containing spent muclear fuel is inserted in the holes formed in the metal blocks. The heat dischaged out of the column shape vessels 17 is radiated to the metal blocks to transmit the heat to the metal blocks. By this, the radiation area of the column shape vessels is practically expanded and the radiation efficiency of the column shape vessels is improved.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は例えば原子力発電所か
ら出される使用済核燃料を貯蔵する乾式の使用済核燃料
貯蔵庫に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry spent nuclear fuel storage for storing spent nuclear fuel emitted from, for example, a nuclear power plant.

【0002】[0002]

【従来の技術】原子力発電所では原子炉に装架された核
燃料集合体を使用年数に応じて順次新品と交換する作業
が行なわれている。炉から取出された使用済核燃料は核
***物質の崩壊のために、未だに強い放射能と熱を放出
し続ける。このため一般には、発電所内に設けた貯蔵プ
ールに水沈させて冷却している。
2. Description of the Related Art In a nuclear power plant, a nuclear fuel assembly mounted on a nuclear reactor is replaced with a new one in accordance with the years of use. The spent nuclear fuel taken out of the reactor still emits strong radioactivity and heat due to the decay of fissionable materials. For this reason, generally, water is submerged in a storage pool provided in the power plant for cooling.

【0003】貯蔵プールに使用済核燃料を水沈させて冷
却する場合、冷却水は放射能に汚染されるため、その処
理に多大なコストが掛る。このため使用済核燃料の発熱
量が規準以下に減少した時点で可及的速やかに貯蔵プー
ルから引き出し、再処理を行なうか又は中間貯蔵を行な
うかを選択し、なるべく貯蔵プールに保管している間の
時間を短かくし、貯蔵コストの低減をはかっている。
When the spent nuclear fuel is submerged in the storage pool to be cooled, the cooling water is radioactively contaminated, so that its treatment is very expensive. Therefore, when the calorific value of the spent nuclear fuel falls below the standard, it is selected as soon as possible from the storage pool and either reprocessed or intermediate storage is selected and stored in the storage pool as much as possible. The time is shortened and the storage cost is reduced.

【0004】本出願人はこの中間貯蔵に適した乾式の使
用済核燃料貯蔵庫を「特願昭60−3357」により提
案した。図3を用いて先に提案した乾式の使用済核燃料
貯蔵庫の構造を簡単に説明する。先に提案した使用済核
燃料貯蔵庫は例えばコンクリートのような放射線遮蔽材
料から成る隔壁3によって外気から隔離された空間を地
下に構築し、この空間の内の上部にハンドリングエリア
4を、下部に貯蔵セル5を配置する。
The applicant of the present invention has proposed a dry type spent nuclear fuel storage suitable for this intermediate storage in Japanese Patent Application No. 60-3357. The structure of the previously proposed dry type spent nuclear fuel storage will be briefly described with reference to FIG. The previously proposed spent nuclear fuel storage has a space underground which is isolated from the outside air by a partition wall 3 made of a radiation shielding material such as concrete. A handling area 4 is provided in the upper part of the space and a storage cell is provided in the lower part. Place 5

【0005】貯蔵セル5は例えばコンクリート製のブロ
ック体に縦方向に孔を形成して貯蔵ピット5Aを構成
し、この貯蔵ピット5Aに図4に示した柱状容器1を収
納し、使用済核燃料2を保管する。ハンドリングエリア
4には天井クレーン6と、自走式装荷機7とを有し、天
井クレーン6と自走式装荷機7を使って柱状容器1をハ
ンドリングエリア4の床面に形成した孔を通じて貯蔵セ
ル5に設けた貯蔵ピット5Aに挿入し、貯蔵セル5に鉛
直に立った姿勢で柱状容器1を格納し保管する。
The storage cell 5 constitutes a storage pit 5A by forming a hole in the longitudinal direction in a block body made of concrete, for example, and the columnar container 1 shown in FIG. To store. The handling area 4 has an overhead crane 6 and a self-propelled loader 7, and the columnar container 1 is stored through a hole formed on the floor surface of the handling area 4 using the overhead crane 6 and the self-propelled loader 7. It is inserted into the storage pit 5A provided in the cell 5, and the columnar container 1 is stored and stored in the storage cell 5 in an upright posture.

【0006】貯蔵セル5に形成された貯蔵ピット5Aは
上面及び下面が開放される。貯蔵ピット5Aを構成する
孔と柱状容器1との間には空気が流通できる程度の空隙
が形成される。従ってこの空隙内で柱状容器1から出さ
れる熱によって暖められた空気は上方に移動し対流が形
成される。この対流により柱状容器1は冷却される。貯
蔵ピット5Aから吐き出された暖気はハンドリングエリ
ア4の床下に集められ、ハンドリングエリア4の側壁4
Aと隔壁3との間に形成した暖気循環路8を通じてハン
ドリングエリア4の上部に移動させる。
The storage pit 5A formed in the storage cell 5 has an upper surface and a lower surface opened. A gap is formed between the hole forming the storage pit 5A and the columnar container 1 to allow air to flow therethrough. Therefore, the air warmed by the heat emitted from the columnar container 1 moves upward in the voids to form convection. The columnar container 1 is cooled by this convection. The warm air discharged from the storage pit 5A is collected under the floor of the handling area 4, and the side wall 4 of the handling area 4 is collected.
It is moved to the upper part of the handling area 4 through the warm air circulation path 8 formed between A and the partition wall 3.

【0007】ハンドリングエリア4の上部には例えばヒ
ートパイプのような熱交換手段9が設けられ、この熱交
換手段9に暖気の熱を吸収させ暖気を冷却する。熱交換
手段9の他端側は隔壁3を貫通して外気通路11に露出
され、外気通路11を通る外気に熱を放出させる。熱交
換手段9によって冷却された空気は冷気循環路12に案
内されて貯蔵セル5の下部に移され、貯蔵セル5に形成
された貯蔵ピット5Aに吸い込まれる。このようにして
先に提案した使用済核燃料貯蔵庫は隔壁3で隔離された
空間内を自然対流によって冷却空気を循環させ、柱状容
器1に格納された使用済核燃料2を冷却し、放射能を外
気に洩らすことなく温度の上昇を抑え、使用済核燃料2
を安全に然も低コストで保管することができるように構
成されている。
A heat exchange means 9 such as a heat pipe is provided above the handling area 4, and the heat exchange means 9 absorbs the heat of the warm air to cool the warm air. The other end side of the heat exchange means 9 penetrates the partition wall 3 and is exposed to the outside air passage 11, and releases heat to the outside air passing through the outside air passage 11. The air cooled by the heat exchanging means 9 is guided to the cold air circulation path 12 and transferred to the lower part of the storage cell 5, and is sucked into the storage pit 5A formed in the storage cell 5. In this way, the previously proposed spent nuclear fuel storage circulates the cooling air by natural convection in the space separated by the partition wall 3 to cool the spent nuclear fuel 2 stored in the columnar container 1 and remove the radioactivity from the outside air. Suppressed temperature rise without leaking to the spent nuclear fuel 2
Is configured so that it can be safely stored at low cost.

【0008】[0008]

【発明が解決しようとする課題】冒頭で説明したように
貯蔵プールでは管理にコストが掛る欠点がある。従って
原子炉から取出した使用済核燃料を直接乾式の使用済核
燃料貯蔵庫に保管できると低コストで保管でき都合がよ
い。然し乍ら原子炉から取出したばかりの使用済核燃料
は温度が高く、また放射能の発生も高レベルであるか
ら、先に提案した乾式の使用済核燃料貯蔵庫では保管す
ることはできない。
As described at the beginning, the storage pool has the drawback of being expensive to manage. Therefore, if the spent nuclear fuel taken out from the nuclear reactor can be directly stored in the dry spent fuel storage, it is convenient because it can be stored at a low cost. However, since the spent nuclear fuel just taken out of the nuclear reactor has a high temperature and a high level of radioactivity, it cannot be stored in the previously proposed dry spent nuclear fuel storage.

【0009】その理由としては先に提案した使用済核燃
料貯蔵庫では貯蔵セル5は一般にコンクリートで形成さ
れるがコンクリートは元々熱伝導度が悪く、柱状容器1
の表面から空気へ熱を伝えるだけの経路で熱を放出して
いる。このため原子炉から取出したばかりの使用済核燃
料を柱状容器1に収納し、この柱状容器1を先に提案し
た使用済核燃料貯蔵庫に貯蔵したとすると貯蔵セルの温
度が異常に上昇し柱状容器1を破損してしまう欠点があ
る。また貯蔵セルを傷めてしまう事故が起きるおそれが
ある。
The reason for this is that in the previously proposed spent nuclear fuel storage, the storage cells 5 are generally made of concrete, but the concrete originally has poor thermal conductivity and the columnar container 1
The heat is released from the surface of the body only by transferring heat to the air. For this reason, if the spent nuclear fuel just taken out of the nuclear reactor is stored in the columnar container 1 and the columnar container 1 is stored in the previously proposed spent nuclear fuel storage, the temperature of the storage cell rises abnormally and It has the drawback of being damaged. In addition, there is a risk that the storage cell may be damaged.

【0010】この発明の目的は、仮に原子炉から取出し
たばかりの使用済核燃料でも、安全に保管することがで
きる、乾式の使用済核燃料貯蔵庫を提供しようとするも
のである。
An object of the present invention is to provide a dry type spent nuclear fuel storage which can safely store even spent nuclear fuel just taken out of a nuclear reactor.

【0011】[0011]

【課題を解決するための手段】この発明では乾式の使用
済核燃料貯蔵庫において、貯蔵セルを熱の良導体である
金属で構成する。つまり金属ブロックに鉛直方向に孔を
形成して貯蔵ピットを形成し、この貯蔵ピットに使用済
核燃料を収納した柱状容器を挿入する。このように構成
することにより、柱状容器から放出される熱は柱状容器
の周面に接する空気を暖めるだけでなく、貯蔵セルを構
成する金属ブロックに輻射して金属ブロックを暖める。
この結果金属ブロックからも熱が放散され、金属ブロッ
クが柱状容器の放熱手段の一部として働き、柱状容器の
放熱効率を高める。
According to the present invention, in a dry spent nuclear fuel storage, the storage cell is made of metal which is a good conductor of heat. That is, a hole is formed in the metal block in the vertical direction to form a storage pit, and a columnar container containing spent nuclear fuel is inserted into the storage pit. With this configuration, the heat released from the columnar container not only warms the air in contact with the peripheral surface of the columnar container, but also radiates the metal block forming the storage cell to warm the metal block.
As a result, heat is also dissipated from the metal block, and the metal block functions as a part of the heat dissipation means of the columnar container, thereby enhancing the heat dissipation efficiency of the columnar container.

【0012】従ってこの発明による使用済核燃料貯蔵庫
によれば柱状容器の温度が高くても、放熱効率が高いか
ら、柱状容器の温度が徐々に上昇することを抑制するこ
とができる。よって仮に原子炉から取出したばかりの使
用済核燃料でも貯蔵することができる利点が得られる。
Therefore, according to the spent nuclear fuel storage according to the present invention, even if the temperature of the columnar container is high, the heat radiation efficiency is high, so that the temperature of the columnar container can be prevented from gradually rising. Therefore, there is an advantage that the spent nuclear fuel just taken out of the nuclear reactor can be stored.

【0013】[0013]

【実施例】図1にこの発明による使用済核燃料貯蔵庫の
実施例を示す。図1において、図3と対応する部分には
同一符号を付して示す。この実施例では放射線遮蔽材料
によって形成される隔壁3によって地下に空間を構築す
ると共に、この空間に貯蔵セル5だけを格納し、ハンド
リングエリア4は隔壁3の外側に配置した構造とした場
合を示す。この実施構造のように隔壁3で囲まれる空間
内に貯蔵セル5だけを配置した構造とすることにより隔
壁3で囲まれる空間の容積を小さくすることができる。
ほかに地下に埋設しなければならない部分の容積を小さ
くできることから、建設コストを大きく低減することが
できる利点が得られる。
FIG. 1 shows an embodiment of a spent nuclear fuel storage according to the present invention. In FIG. 1, parts corresponding to those in FIG. 3 are designated by the same reference numerals. In this embodiment, a space is constructed underground by the partition wall 3 formed of a radiation shielding material, and only the storage cell 5 is stored in this space, and the handling area 4 is arranged outside the partition wall 3. .. By adopting a structure in which only the storage cells 5 are arranged in the space surrounded by the partition walls 3 as in this embodiment, the volume of the space surrounded by the partition walls 3 can be reduced.
In addition, since the volume of the part that must be buried underground can be reduced, the construction cost can be greatly reduced.

【0014】この発明の特徴とする点は貯蔵セル5の構
造にある。この発明では貯蔵セル5を、例えばステンレ
スのように熱の良導体から成る金属ブロックによって構
成する。金属ブロックには鉛直方向に例えば500〜6
00mm程度の直径を持つ孔を多数配列形成し、この孔
によって貯蔵ピット5Aを構成する。貯蔵ピット5Aと
この貯蔵ピット5Aに挿入した柱状容器との関係を図2
に拡大して示す。この実施例では図3で説明した柱状容
器1を更に大形の第2の柱状容器17に収納し、放熱面
積を大きく得るように構成した場合を示す。つまり使用
済核燃料2を第1柱状容器1に格納し、第1柱状容器1
を更に形状が大きい第2柱状容器17に格納する。この
ようにして容器を2重構造とすることにより安全性を高
め放射能洩れを防ぐ構造にすると共に放熱面積を大きく
得るように構成した場合を示す。第2柱状容器17の開
口部には金属プラグ13を嵌着し、封止する。
The feature of the present invention lies in the structure of the storage cell 5. In the present invention, the storage cell 5 is composed of a metal block made of a good heat conductor such as stainless steel. For example, 500-6 in the vertical direction on the metal block.
A large number of holes having a diameter of about 00 mm are formed in an array, and the holes form storage pits 5A. FIG. 2 shows the relationship between the storage pit 5A and the columnar container inserted in the storage pit 5A.
Enlarged to show. In this embodiment, the columnar container 1 described in FIG. 3 is housed in a larger second columnar container 17 so as to obtain a large heat radiation area. That is, the spent nuclear fuel 2 is stored in the first columnar container 1, and the first columnar container 1
Is stored in the second columnar container 17 having a larger shape. The case where the container has a double structure in this manner to enhance safety and prevent leakage of radioactivity and to have a large heat dissipation area is shown. The metal plug 13 is fitted into the opening of the second columnar container 17 and sealed.

【0015】第1柱状容器1及び第2柱状容器17は共
に例えばステンレスのような耐久性の高い金属材料で形
成し、内周面は熱吸収色例えば黒色とし、外周面は熱放
散色例えば白色或は鏡面とし、使用済核燃料2から放散
される熱を有効に第2柱状容器17の外側に伝達するよ
うに構成するとよい。更に貯蔵ピット5Aを構成する孔
の内周面には例えば黒色のような熱吸収色を付すことに
より第2柱状容器17の表面から輻射される熱を、貯蔵
セル5を構成する金属ブロックに効率よく伝達させるこ
とができる。
Both the first columnar container 1 and the second columnar container 17 are formed of a highly durable metal material such as stainless steel, and the inner peripheral surface has a heat absorbing color such as black and the outer peripheral surface has a heat dissipating color such as white. Alternatively, a mirror surface may be used so that the heat radiated from the spent nuclear fuel 2 is effectively transmitted to the outside of the second columnar container 17. Further, the heat radiated from the surface of the second columnar container 17 is efficiently supplied to the metal block forming the storage cell 5 by giving a heat absorbing color such as black to the inner peripheral surface of the hole forming the storage pit 5A. Can be well communicated.

【0016】第2柱状容器17はハンドリングエリア4
の床となる隔壁3に形成された孔から挿入され、下端は
貯蔵セル5を構成する金属ブロックの下面近くまで延長
され、全長が約7〜8メートル程度となる。貯蔵セル5
の上面とハンドリングエリア4の床を構成する隔壁3と
の間に暖気収集室14を形成し、この暖気収集室14の
端部側に例えばヒートパイプのような熱交換手段9を配
置する。
The second columnar container 17 has a handling area 4
It is inserted through a hole formed in the partition wall 3 that serves as the floor of the storage cell, and the lower end extends to the vicinity of the lower surface of the metal block that constitutes the storage cell 5, and the total length is about 7 to 8 meters. Storage cell 5
A warm air collecting chamber 14 is formed between the upper surface of the hot air collecting chamber 14 and the partition wall 3 that constitutes the floor of the handling area 4, and a heat exchanging means 9 such as a heat pipe is arranged on the end side of the warm air collecting chamber 14.

【0017】熱交換手段9の他端側は隔壁3を貫通して
外気通路11に導出し、外気通路11を通る外気に熱を
放出する。この熱の放出により暖気収集室14に収集し
た暖気は冷却され、冷気循環路12に案内されて貯蔵セ
ル5の下側に送られる。冷気循環路12に案内されて送
られて来た冷気は貯蔵セル5の下側に設けた冷気送給室
15に送り込まれる。冷気送給室15に送り込まれた冷
気は貯蔵セル5の貯蔵ピット5Aに吸い込まれ第2柱状
容器17の周面及び貯蔵ピット5Aの内周面を冷却しつ
つ上昇し、再び暖気となって暖気収集室14に収集され
る。
The other end of the heat exchanging means 9 penetrates the partition wall 3 and is led out to the outside air passage 11 to release heat to the outside air passing through the outside air passage 11. Due to the release of this heat, the warm air collected in the warm air collecting chamber 14 is cooled, guided to the cold air circulation path 12, and sent to the lower side of the storage cell 5. The cold air guided and sent to the cold air circulation path 12 is sent to the cold air supply chamber 15 provided below the storage cell 5. The cold air sent to the cold air supply chamber 15 is sucked into the storage pit 5A of the storage cell 5, rises while cooling the peripheral surface of the second columnar container 17 and the inner peripheral surface of the storage pit 5A, and becomes warm air again and becomes warm air. It is collected in the collection chamber 14.

【0018】ハンドリングエリア4には例えば天井クレ
ーン6と自走式装荷機7が設けられ、これら天井クレー
ン6と自走式装荷機7を使って第1柱状容器1を第2柱
状容器17に挿入する作業及び第2柱状容器17から引
出す作業、または第2柱状容器17を貯蔵セル5に挿入
する作業、及び貯蔵セル5から引出す作業を行なう。熱
交換手段9はこの例ではヒートパイプのように熱交換効
率が高い熱交換手段を用いる。更にこの例では熱交換手
段9を上下方向に移動できるように支持し、上部に保守
室16を構築し、必要に応じて保守室16に引き上げ保
守、点検を行なえるように構成した場合を示す。
In the handling area 4, for example, an overhead crane 6 and a self-propelled loader 7 are provided, and the first columnar container 1 is inserted into the second columnar container 17 using the overhead crane 6 and the self-propelled loader 7. The work of pulling out from the second columnar container 17, the work of inserting the second columnar container 17 into the storage cell 5, and the work of pulling out from the storage cell 5 are performed. As the heat exchange means 9, in this example, a heat exchange means having a high heat exchange efficiency such as a heat pipe is used. Further, in this example, the heat exchanging means 9 is supported so as to be movable in the vertical direction, a maintenance room 16 is constructed in the upper part, and the maintenance room 16 is pulled up to the maintenance room 16 as necessary to perform maintenance and inspection. ..

【0019】[0019]

【発明の効果】以上説明したように、この発明によれば
貯蔵セル5を熱の良導体から成る金属ブロックによって
構成し、使用済核燃料2を格納した第2柱状容器17か
ら発散する熱を金属ブックに輻射して伝達し、この金属
ブロックからも熱を放出させる構造としたから、実質的
に第2柱状容器17の放熱面積を拡げたのと等価とな
り、効率よく放熱させることができる。
As described above, according to the present invention, the storage cell 5 is constituted by the metal block made of a good heat conductor, and the heat radiated from the second columnar container 17 storing the spent nuclear fuel 2 is transferred to the metal book. Since it has a structure in which the heat is radiated to and transmitted to the metal block and the heat is also released from the metal block, it is substantially equivalent to expanding the heat radiation area of the second columnar container 17, and heat can be efficiently radiated.

【0020】よって仮に原子炉から取出したばかりの使
用済核燃料のように比較的温度が高い場合でも、放熱効
率が高いことから柱状容器の温度が徐々に上昇する現象
を抑えることができる。この結果管理にコストが掛る貯
蔵プールを使うことなく、直接管理コストが安い乾式の
使用済核燃料貯蔵庫で貯蔵することができる利点が得ら
れる。
Therefore, even if the temperature of the spent nuclear fuel just taken out of the nuclear reactor is relatively high, the heat dissipation efficiency is high, so that the phenomenon that the temperature of the columnar container gradually rises can be suppressed. As a result, there is an advantage that it can be stored directly in a dry spent nuclear fuel storage with low management cost without using a storage pool which is expensive to manage.

【0021】尚上述ではこの発明を図1に示したように
隔壁3に囲まれた空間内に貯蔵セル5だけを収納した建
屋の構造に適用した場合を説明したが、これに限られる
ことなく、図3に示した建屋の構造にも適用できること
は容易に理解できよう。
In the above description, the present invention is applied to the structure of the building in which only the storage cells 5 are housed in the space surrounded by the partition walls 3 as shown in FIG. 1, but the present invention is not limited to this. It can be easily understood that the structure of the building shown in FIG. 3 can be applied.

【図面の簡単な説明】[Brief description of drawings]

【図1】この発明の一実施例を説明するための断面図。FIG. 1 is a sectional view for explaining an embodiment of the present invention.

【図2】この発明の要部の構造を説明するための拡大断
面図。
FIG. 2 is an enlarged cross-sectional view for explaining the structure of the main part of the present invention.

【図3】従来の技術を説明するための断面図。FIG. 3 is a cross-sectional view for explaining a conventional technique.

【図4】使用済核燃料の収納容器の構造を説明するため
の一部を切開いた斜視図。
FIG. 4 is a partially cut-away perspective view for explaining the structure of a spent nuclear fuel storage container.

【符号の説明】 1 第1柱状容器 2 使用済核燃料 3 隔壁 4 ハンドリングエリア 5 貯蔵セル 5A 貯蔵ピット 9 熱交換手段 11 外気通路 12 冷気循環路 13 金属プラグ 14 暖気収集室 15 冷気送給室 17 第2柱状容器[Explanation of reference symbols] 1st columnar container 2 spent nuclear fuel 3 partition wall 4 handling area 5 storage cell 5A storage pit 9 heat exchange means 11 outside air passage 12 cold air circulation passage 13 metal plug 14 warm air collection chamber 15 cold air supply chamber 17th 2-column container

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成4年11月25日[Submission date] November 25, 1992

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0010[Correction target item name] 0010

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0010】この発明の目的は、仮に原子炉から取出し
たばかりの使用済核燃料でも、安全に保管することがで
きる、乾式の使用済核燃料貯蔵庫を提供しようとするも
のである。尚、原子炉から取り出したばかりの使用済核
燃料を貯蔵プールに貯蔵する場合には、その貯蔵期間を
短縮することができる。
An object of the present invention is to provide a dry type spent nuclear fuel storage which can safely store even spent nuclear fuel just taken out of a nuclear reactor. It should be noted that the used nucleus just removed from the reactor
If you store fuel in a storage pool,
It can be shortened.

【手続補正2】[Procedure Amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0019[Name of item to be corrected] 0019

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0019】[0019]

【発明の効果】以上説明したように、この発明によれば
貯蔵セル5を熱の良導体から成る金属ブロックによって
構成し、使用済核燃料2を格納した第2柱状容器17か
ら発散する熱を金属ブックに輻射して伝達し、この金属
ブロックからも熱を放出させる構造としたから、実質的
に第2柱状容器17の放熱面積を拡げたのと等価とな
り、効率よく放熱させることができる。尚、原子炉から
取り出したばかりの使用済核燃料を貯蔵プールに貯蔵す
る場合には、その貯蔵期間を短縮することができる。
As described above, according to the present invention, the storage cell 5 is constituted by the metal block made of a good heat conductor, and the heat radiated from the second columnar container 17 storing the spent nuclear fuel 2 is transferred to the metal book. Since it has a structure in which the heat is radiated to and transmitted to the metal block and the heat is also released from the metal block, it is substantially equivalent to expanding the heat radiation area of the second columnar container 17, and heat can be efficiently radiated. From the reactor
Store spent nuclear fuel just taken out in a storage pool
Storage period, the storage period can be shortened.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 A.放射線遮蔽材料によって構成される
隔壁によって外気から隔離されて構築された空間内に、
使用済核燃料を収納した柱状容器を鉛直な姿勢を保って
保管する貯蔵セルと、この貯蔵セルから発生する熱を空
気に移し、この空気を循環させて上記柱状容器を冷却す
る空気循環路と、この空気循環路を循環する空気から熱
を吸収して上記隔壁の外側に熱を放出させる熱交換手段
とを設けて構成される使用済核燃料貯蔵庫において、 B.上記貯蔵セルを熱の良導体から成る金属ブロックに
上記柱状容器を収納する孔を形成して構成し、この金属
ブロックによって構成した貯蔵セルの孔に上記柱状容器
を挿入し、柱状容器から発散される熱を上記金属ブロッ
クに輻射させ上記金属ブロックを上記柱状容器の放熱手
段の一部として利用するように構成したことを特徴とす
る使用済核燃料貯蔵庫。
1. A. In the space constructed by being isolated from the outside air by the partition wall composed of radiation shielding material,
A storage cell for storing the columnar container containing the spent nuclear fuel in a vertical posture and storing it, and transferring heat generated from the storage cell to air, and an air circulation path for circulating the air to cool the columnar container, A spent nuclear fuel storage configured to include heat exchange means for absorbing heat from the air circulating in the air circulation path and releasing the heat to the outside of the partition wall; The storage cell is constructed by forming a hole for accommodating the columnar container in a metal block made of a good conductor of heat, and inserting the columnar container in the hole of the storage cell formed by the metal block, and diverging from the columnar container. A spent nuclear fuel storage characterized in that heat is radiated to the metal block and the metal block is used as a part of a heat radiating means of the columnar container.
JP4067681A 1992-03-26 1992-03-26 Spent nuclear fuel storage Expired - Lifetime JP3010889B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP4067681A JP3010889B2 (en) 1992-03-26 1992-03-26 Spent nuclear fuel storage
TW082102045A TW235365B (en) 1992-03-26 1993-03-19
KR1019930004823A KR970011259B1 (en) 1992-03-26 1993-03-26 Nuclear fuel storehouse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4067681A JP3010889B2 (en) 1992-03-26 1992-03-26 Spent nuclear fuel storage

Publications (2)

Publication Number Publication Date
JPH05273394A true JPH05273394A (en) 1993-10-22
JP3010889B2 JP3010889B2 (en) 2000-02-21

Family

ID=13351985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4067681A Expired - Lifetime JP3010889B2 (en) 1992-03-26 1992-03-26 Spent nuclear fuel storage

Country Status (1)

Country Link
JP (1) JP3010889B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008522155A (en) * 2004-11-24 2008-06-26 オイスター・インターナショナル・ナムローゼ・フエンノートシャップ Nuclear power generation facility and construction method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008522155A (en) * 2004-11-24 2008-06-26 オイスター・インターナショナル・ナムローゼ・フエンノートシャップ Nuclear power generation facility and construction method thereof

Also Published As

Publication number Publication date
JP3010889B2 (en) 2000-02-21

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