JPS6363996A - Spent-fuel storage facility for nuclear reactor - Google Patents
Spent-fuel storage facility for nuclear reactorInfo
- Publication number
- JPS6363996A JPS6363996A JP61206717A JP20671786A JPS6363996A JP S6363996 A JPS6363996 A JP S6363996A JP 61206717 A JP61206717 A JP 61206717A JP 20671786 A JP20671786 A JP 20671786A JP S6363996 A JPS6363996 A JP S6363996A
- Authority
- JP
- Japan
- Prior art keywords
- spent fuel
- fuel storage
- outside air
- nuclear reactor
- spent
- 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
- 239000002915 spent fuel radioactive waste Substances 0.000 title claims description 55
- 239000000446 fuel Substances 0.000 claims description 17
- 238000009423 ventilation Methods 0.000 claims description 13
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000001816 cooling Methods 0.000 description 8
- 238000000746 purification Methods 0.000 description 6
- 210000004027 cell Anatomy 0.000 description 4
- 239000011810 insulating material Substances 0.000 description 4
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
- CGVWPQOFHSAKRR-NDEPHWFRSA-N biricodar Chemical compound COC1=C(OC)C(OC)=CC(C(=O)C(=O)N2[C@@H](CCCC2)C(=O)OC(CCCC=2C=NC=CC=2)CCCC=2C=NC=CC=2)=C1 CGVWPQOFHSAKRR-NDEPHWFRSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000009270 solid waste treatment Methods 0.000 description 1
- 210000001912 transporting cell Anatomy 0.000 description 1
- 239000002699 waste material 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
- Structure Of Emergency Protection For Nuclear Reactors (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（発明の目的）
（産業上の利用分野）
本発明は、原子炉の炉心から取出された使用済燃料を原
子炉施設外へ搬出するまでの間貯藏を行なう原子炉の使
用済燃料貯蔵ポットに＋ｉする。Detailed Description of the Invention (Objective of the Invention) (Industrial Application Field) The present invention relates to a nuclear reactor that stores spent fuel taken out from the core of a nuclear reactor until it is transported outside of a nuclear reactor facility. +i to spent fuel storage pot.
（従来の技術）
第３図は従来の液体金属冷却型原子炉における使用済燃
料取扱システムの概要を示Ｊものである。(Prior Art) FIG. 3 shows an overview of a spent fuel handling system in a conventional liquid metal cooled nuclear reactor.
原子炉容器１０１内での使用済窟籾の取扱は、炉心１０
２で十分燃焼した燃料を原子炉８器１０１上部に設置し
た燃料交換機１０３の操作により、炉内燃料貯蔵ラック
１０４に移し、ここで次回の燃料交換時まで貯蔵され、
崩壊熱レベルを低下ざゼる。また、前回の燃ｒ１交換時
から炉内燃料貯蔵ランク１０４に貯蔵され崩壊熱レベル
が低下した使用済燃料は、燃料出入機１０５により原子
１容：！９１０１から取出される。Handling of spent paddy inside the reactor vessel 101 is handled by the reactor core 10.
The fuel that has been sufficiently burned in step 2 is transferred to the in-reactor fuel storage rack 104 by operating the fuel exchange machine 103 installed above the reactor 8 unit 101, where it is stored until the next fuel exchange,
Decrease the level of decay heat. In addition, the spent fuel, which has been stored in the in-core fuel storage rank 104 since the previous fuel r1 exchange and whose decay heat level has decreased, is transferred to the fuel loading/unloading machine 105 by atomic volume:! 9101.
燃料出入機１０５により取出された使用済燃料は−Ｅ１
炉外中継槽１０６へ移され、直ちに、付着ナトリウムの
反応を防ぐため、水分を持込まないドライヒル（不活性
ガス雰囲気に保持された小室）内をインヒルクレーン１
０７によって、回転式洗浄槽１０８に移送される。回転
式洗浄槽１０８は、次々に送られてくる使用済燃料を連
続的に洗浄できるにうに、ターンテーブルに２基の洗浄
槽を搭載した構成となっており、受入れた使用済燃料を
洗浄した後、ターンテーブル毎に反転して、ウェットセ
ル（水分を合む空気雰囲気の小室）１０９側へ受は渡さ
れ、このウェットセル１０９内をインヒルクレーン１１
０にＪ、り移送されて、水プール燃料貯蔵槽１１１内に
収容され、再処理工場への搬出を持つ。The spent fuel taken out by the fuel inlet/output machine 105 is -E1
Immediately after being transferred to the external relay tank 106, the inside of the dry hill (a small chamber maintained in an inert gas atmosphere), which does not contain moisture, is moved by an in-hill crane 1 to prevent the adhering sodium from reacting.
07, it is transferred to the rotary cleaning tank 108. The rotary cleaning tank 108 has two cleaning tanks mounted on a turntable so that the spent fuel that is sent one after another can be continuously cleaned. After that, the receiver is reversed for each turntable and passed to the wet cell (a small chamber with an air atmosphere that combines moisture) 109, and the in-hill crane 11 moves inside this wet cell 109.
The fuel is transferred to the water pool fuel storage tank 111, and then transported to the reprocessing plant.
水プール燃料貯蔵槽１１１内の使用済燃料を■り処理工
場へ搬出する際は、インしルクレーン１１０により使用
済燃料を複数本づつ収容した使用済燃料ＥＴ−スク１１
２を天井クレーン１１３によって搬出トレーラ（図示せ
ず）に積み、港湾設（４６客へ搬送される。When the spent fuel in the water pool fuel storage tank 111 is transported to the processing factory, the spent fuel ET-sk 11 containing a plurality of spent fuels is moved by the inlet crane 110.
2 is loaded onto an unloading trailer (not shown) by an overhead crane 113, and transported to a port facility (46 customers).
（発明が解決しようとする問題点）
上記燃料取扱システムでは、水プール燃料貯′ｉａ槽で
使用済燃料の搬出持貯蔵を行なうため、プール水中に使
用済燃料から放射性物質、腐良生成物等の不純物が流出
すると共に、使用済燃料の崩壊熱によりプール水温が上
界するので、プール水をぴ化・冷ＩＪＪ′ｇるために濾
過脱塩器または脱塩器および熱交換器等で構成されるプ
ール水冷１ｒＩ ｒｐ化糸系統設置する必要がある。ま
た、政道脱塩器あるいＧ、Ｌｌ悦１！器には浄化用のイ
オン交換樹脂が用いられ、浄化能力をＭ持するためイオ
ン交換樹脂を交換する必要があるとともに、交換された
廃樹脂は固体廃棄物処理系で処理する必要があるなどの
取扱上程々の問題点がある。(Problems to be Solved by the Invention) In the above fuel handling system, spent fuel is transported and stored in the water pool fuel storage tank. As impurities flow out and the pool water temperature rises due to the decay heat of the spent fuel, a filter demineralizer or demineralizer and a heat exchanger are used to purify and cool the pool water. It is necessary to install a pool water cooling 1rI RP line system. Also, Masamichi desalination machine or G, Ll Yue 1! The container uses ion exchange resin for purification, and in order to maintain the purification ability, the ion exchange resin must be replaced, and the replaced waste resin must be treated in a solid waste treatment system. There are some problems in handling.
本発明は上記問題点を解決するためになされたもので、
崩壊熱を右する使用済燃料を、水中貯蔵することなり１
１８出持貯蔵し、プール水冷却浄化系統を不要とするこ
とで、配置スペースおよび動力負荷を低減し得る原子炉
の使用済燃料貯蔵設備を捉供することを目的とする。The present invention has been made to solve the above problems,
Spent fuel, which has decay heat, must be stored underwater 1
The purpose of the present invention is to provide a spent fuel storage facility for a nuclear reactor that can reduce the installation space and power load by removing and storing the fuel and eliminating the need for a pool water cooling and purification system.
（問題点を解決するだめの手段）
本発明は、コンクリート類「屋内に配設され、使用済燃
料を原子炉施設外へ搬出するまでの間貯蔵を行なう原子
炉の使用済燃料貯蔵設備において、上記ｌ！屋内に使用
済燃料を貯蔵する使用済燃料貯蔵ポットを収容し、この
使用済燃料貯蔵ポットを外側から囲む通風路カバーを設
番ノ、この通風路カバー内に内側流通路を、その外側に
前記井嗜内面との間で外側流通路をそれぞれ形成し、上
記外側流通路は通ｌ！４１路カバー底部に設けられた連
通孔を介して前記内側流通路に連通される一方、前記外
側流通路Ｊｊ Ｊ、び内側流通路は前記建屋の壁を貝通
して設番ノられた外気流入口および外気流出口により外
気と連通されたものである。(Means for Solving the Problems) The present invention is directed to a spent fuel storage facility for a nuclear reactor that is placed indoors and stores spent fuel until it is transported outside the reactor facility. Above l! A spent fuel storage pot for storing spent fuel is housed indoors, and a ventilation duct cover is installed to surround this spent fuel storage pot from the outside. Outer flow passages are formed on the outside between the inner surface of the well and the outer flow passages, and the outer flow passages are communicated with the inner flow passages through communication holes provided at the bottom of the passage cover. The outer flow path Jj and the inner flow path are communicated with the outside air through an outside air inlet and an outside air outlet that are numbered through the wall of the building.
（作用）
外気流入口から外側流通路に流入した外気は連通孔から
内ｒｓ流通路に流入し、使用済燃料貯蔵ポットの外面を
直接冷却しながらｉ！″！温となって自らの比重を軽く
して外気流出口から大気に流出し、この外気の自然％Ｉ
ＩＴｆ５の繰り返しによって杖用済燃料および使用済燃
料貯蔵ポットは徐々に冷却されていく。(Function) The outside air that has flowed into the outer flow passage from the outside air inlet flows into the inner RS flow passage from the communication hole, and while directly cooling the outer surface of the spent fuel storage pot, the i! ``!It becomes warmer, reduces its own specific gravity, and flows out into the atmosphere from the outside air outlet, and this outside air's natural %I
By repeating ITf5, the cane spent fuel and the spent fuel storage pot are gradually cooled down.
（実施例）
以下、図面を参照して本発明の一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 the drawings.
第１図および第２図は本発明に係る原子炉の使用済燃料
貯蔵設備設備の一実浦Ｉ列を示す図であり、第１図はそ
の縦断面図であり、第２図は第１図における■−■線に
沿って切断して示す断面図である。Figures 1 and 2 are diagrams showing Ichimimura I row of spent fuel storage equipment for a nuclear reactor according to the present invention, Figure 1 is a vertical cross-sectional view thereof, and Figure 2 is a view of the FIG. 2 is a cross-sectional view taken along the line ■-■ in the figure.
第１図において、コンクリート製建屋１内は不粘性ガス
雰囲気のドライセルＡと空気雰囲気の使用済燃料搬出時
Ｂとに支持床２で区画される。前配支１！床２はコンク
リート製で床面に鋼ｍ２ａが張られており、図示してな
い上部フランジを備えた複数本の使用済燃料貯蔵ポット
３を吊設している。前記上部フランジと前記支持床２の
上８１Ｓ鋼板２ａとの問はシールされ、雰囲気の混合を
防いでいる。In FIG. 1, the inside of a concrete building 1 is divided by a supporting floor 2 into a dry cell A having an inviscid gas atmosphere and a spent fuel transporting cell B having an air atmosphere. Mae control 1! The floor 2 is made of concrete and covered with steel m2a, on which a plurality of spent fuel storage pots 3 each having an upper flange (not shown) are suspended. The space between the upper flange and the upper 81S steel plate 2a of the support floor 2 is sealed to prevent mixing of atmospheres.
前記建屋１内の使用流燃料貯′ｉａ槽Ｂには使用済燃料
貯蔵ボッｌ−３を外側から覆う通風路カバー４が支持床
２に設置されており、この通風路カバー４の内側に内側
流通路５が、その外側にＵ屋１の内面との間に外側流通
路６がそれぞれ形成される。In the used fuel storage tank B in the building 1, a ventilation duct cover 4 that covers the spent fuel storage bottle 1-3 from the outside is installed on the support floor 2. An outer flow path 6 is formed between the flow path 5 and the inner surface of the U-shape 1 on the outside thereof.
通風路カバー４は鋼材および断熱材によって構成され、
建屋１の床７およびキャピテイウオール８に設けられた
支持部材９により支持される。通風路カバー４の中央部
には外側流通路６と内側流通路５とを連通させる連通孔
１０が穿設されている。The ventilation duct cover 4 is made of steel and heat insulating material,
It is supported by support members 9 provided on the floor 7 and capacity wall 8 of the building 1 . A communication hole 10 is bored in the center of the ventilation passage cover 4 to allow the outer flow passage 6 and the inner flow passage 5 to communicate with each other.
また、建屋１のキャピテイウオール８内には上部が開放
されて外気と連通する小室１１が形成される。ｊ［１内
と小室１１との間には外気流入口１２Ｊｊよび外気流出
口１３が一１ヤビティウォール８をじ１通し【設けられ
る。この外気流入口１２を介して外側流通路６は外気と
連通し、内側流通路５は外気流出口１３および外気流出
口１３の外側に垂直に設けられたドラフトチムニー１４
を介して外気と連通している。また、外気流出口１３お
よびドラフトチムニ−１４の外周は断熱材によって覆わ
れている。Furthermore, a small chamber 11 is formed in the capacity wall 8 of the building 1 with an open top and communicating with the outside air. An outside air inlet 12Jj and an outside air outlet 13 are provided between the inside of the chamber 1 and the small chamber 11 through one cavity wall 8. The outer flow path 6 communicates with the outside air through the outside air inlet 12, and the inner flow path 5 communicates with the outside air through the outside air outlet 13 and the draft chimney 14 provided perpendicularly outside the outside air outlet 13.
It communicates with the outside air through. Further, the outer peripheries of the outside air outlet 13 and the draft chimney 14 are covered with a heat insulating material.
使用済燃料貯蔵ボット３は頂部に遮ＫＮを備えており、
使用済燃料を使用済燃料貯蔵ボット３に貯蔵する際、崩
壊熱のドライセルＡ内への移行を防止している。使用済
燃料貯蔵ポット３内は不活性ガス雰囲気に形成され、ナ
トリウムの付着した使用済燃料を貯蔵してもナトリウム
反応は起こらないようになっている。また、使用済燃料
貯蔵ボット３は使用済燃料の崩壊熱を有効に除去するた
めに、その外表面に放熱フィンを取付けるようにしても
よい。The spent fuel storage bot 3 is equipped with a KN at the top,
When storing spent fuel in the spent fuel storage bot 3, transfer of decay heat into the dry cell A is prevented. The inside of the spent fuel storage pot 3 is formed in an inert gas atmosphere so that a sodium reaction will not occur even if spent fuel with adhering sodium is stored. Further, the spent fuel storage bot 3 may have heat dissipation fins attached to its outer surface in order to effectively remove the decay heat of the spent fuel.
使用済燃料は受入口１５からインヒルクレーン１７によ
って受渡され、このインセルクレーン１７に支持されて
搬送され、所定の位置の使用済燃料貯蔵ボット３に貯蔵
される。使用済燃料搬出時には、インセルクレーン１７
により使用済燃料貯蔵ボット３から取り出された使用済
燃料はインセルクレーン１７によって受渡口１６から搬
出される。The spent fuel is delivered from the receiving port 15 by the in-hill crane 17, supported by the in-hill crane 17, transported, and stored in the spent fuel storage bot 3 at a predetermined position. When transporting spent fuel, incel crane 17
The spent fuel taken out from the spent fuel storage bot 3 is carried out from the delivery port 16 by the in-cell crane 17.
次に、このような構成からなる本実施例の作用について
説明する。Next, the operation of this embodiment having such a configuration will be explained.
原子炉の使用済燃料貯蔵設備は上部がＩＦｉＭされたｌ
！屋１の小室１１へ外気が侵入し、この外気は外気流入
口１２を通って外側流通路６内に入る。The top of the nuclear reactor's spent fuel storage facility is IFiM.
! Outside air enters the small room 11 of the house 1, and this outside air enters the outside flow path 6 through the outside air inlet 12.
その後外気は通風路カバー４の外面に沿って外側流通路
６内を下方へ流れ、通風路カバー４の中火部に形成され
た連通孔１０を経て内部流通路５内に案内される。内部
流通路５内に流入した外気は使用済燃料貯蔵ボッ１〜３
の外面を直接冷却しながら高温となり、自らの止車を軽
くして上方へ流れ外気流出口１３おＪ：びドラフトチム
ニ−１４内を通って大気中へ放出される。Thereafter, the outside air flows downward in the outer flow passage 6 along the outer surface of the ventilation passage cover 4, and is guided into the inner flow passage 5 through the communication hole 10 formed in the middle heat section of the ventilation passage cover 4. The outside air that has flowed into the internal flow path 5 is transferred to the spent fuel storage boxes 1 to 3.
While directly cooling the outer surface of the vehicle, it becomes high temperature, reduces its own stop, flows upward, passes through the outside air outlet 13 and the draft chimney 14, and is discharged into the atmosphere.
このように外気が自然循環を繰り返すことによって、建
屋１内および使用済燃料貯蔵ボット３は徐々に冷却され
ていく。この外気の自然循環の際、連通孔１０が通風路
カバー４の中央部に設けられているので、内側流通路を
流入した外気はまんべんなく使用済燃料貯蔵ボット３の
外面を上方へ拡散し、使用済Ｍ料貯蔵ボット３の均一な
除熱を行なうことができる。By repeating the natural circulation of outside air in this way, the inside of the building 1 and the spent fuel storage bot 3 are gradually cooled. During this natural circulation of outside air, since the communication hole 10 is provided in the center of the ventilation passage cover 4, the outside air that has flowed in through the inner flow passage is evenly diffused upward over the outer surface of the spent fuel storage bot 3 and used. It is possible to uniformly remove heat from the finished M storage bot 3.
一方、通風路カバー４の外側は断熱材で覆われているの
で、内側流通路５から外Ｍ４４通路６への熱伝導を防止
できる。このため、両者を所定の温度差に保つことかで
きるとともに所定の比重差を確保することができ、外気
の自然循環をスムーズに行なうことができる。外気流出
口１３およびドラフトチムニ−１４の外側は断熱材で覆
われているので、このことも断熱性を確保し自然循環を
する土で都合がよい。On the other hand, since the outside of the ventilation passage cover 4 is covered with a heat insulating material, heat conduction from the inner flow passage 5 to the outer M44 passage 6 can be prevented. Therefore, it is possible to maintain a predetermined temperature difference between the two, and also to ensure a predetermined specific gravity difference, allowing smooth natural circulation of outside air. Since the outside of the outside air outlet 13 and the draft chimney 14 are covered with a heat insulating material, this is also convenient because the soil ensures heat insulation and allows natural circulation.
このように本実施例によれば、外気が自然循環を繰り返
すことによって使用済燃料貯蔵ボット３および建屋１を
冷却することができるので、従来のような水プール設備
およびそれに伴うプール水冷ＪＪＩ浄化系統を設ける必
要がない。As described above, according to this embodiment, the spent fuel storage bot 3 and the building 1 can be cooled by repeating the natural circulation of outside air, so that the conventional water pool equipment and the associated pool water cooling JJI purification system can be cooled. There is no need to provide
（発明の効果）
本発明によれば、水プール設備を用いることなく外気の
自然循環によって建屋内および使用済燃料貯蔵ポットを
冷却することができるので、使用済燃料貯蔵時の崩壊熱
を動力を必要としないで除去できるとともに、水プール
設備およびそれに伴うプール水冷却浄化系統が不要とな
り、簡単な構成で確実かつ安価に冷却することができる
。また、プール水冷却浄化系統が不要であることから、
配置スペースも大きく削減できる。(Effects of the Invention) According to the present invention, the building and the spent fuel storage pot can be cooled by natural circulation of outside air without using water pool equipment, so the decay heat during spent fuel storage can be used as power. In addition to eliminating the need for water pool equipment and its accompanying pool water cooling purification system, cooling can be achieved reliably and at low cost with a simple configuration. In addition, since there is no need for a pool water cooling and purification system,
The installation space can also be greatly reduced.
第１図は本発明による使用済燃料貯蔵時備の一実施１９
４を示す縦断面図、第２図は第１図におけるト」線断面
図、第３図は従来の燃料取扱システムを示す縦断面図で
ある。
１・・・げ屋、２・・・支持床、３・・・使用済燃料貯
蔵ポット、４・・・通風路カバー、５・・・内Ｉ！ＩＲ
通路、６・・・外側流通路、１０・・・連通孔、１１・
・・小室、１２・・・外気流入し１．１３・・・外気流
出］１．１４・・・トラフ１〜／−ムニー。
出願人代理人 波 多 野 久第１図
第２図
第３図FIG. 1 shows an implementation 19 of spent fuel storage preparation according to the present invention.
4, FIG. 2 is a cross-sectional view taken along the line T in FIG. 1, and FIG. 3 is a vertical cross-sectional view showing a conventional fuel handling system. 1...Gager, 2...Support floor, 3...Spent fuel storage pot, 4...Ventilation duct cover, 5...Inner I! IR
Passage, 6... Outer flow path, 10... Communication hole, 11.
...Small chamber, 12...Outside air flows in 1.13...Outside air flows out] 1.14...Trough 1~/-Muni. Applicant's agent Hisashi Hatano Figure 1 Figure 2 Figure 3
Claims (1)
子炉施設外へ搬出するまでの間貯蔵を行なう原子炉の使
用済燃料貯蔵設備において、上記建屋内に使用済燃料を
貯蔵する使用済燃料貯蔵ポットを収容し、この使用済燃
料貯蔵ポットを外側から囲む通風路カバーを設け、この
通風路カバー内に内側流通路を、その外側に前記建屋内
面との間で外側流通路をそれぞれ形成し、上記外側流通
路は通風路カバー底部に設けられた連通孔を介して前記
内側流通路に連通される一方、前記外側流通路および内
側流通路は前記建屋の壁を貫通して設けられた外気流入
口および外気流出口により外気と連通されたことを特徴
とする原子炉の使用済燃料貯蔵設備。 ２、前記外気流出口の外気側にはドラフトチムニーが取
り付けられたことを特徴とする特許請求の範囲第１項に
記載の原子炉の使用済燃料貯蔵設備。 ３、前記使用済燃料貯蔵ポットの外周面には放熱を促進
するようにフィンが取り付けられたことを特徴とする特
許請求の範囲第１項に記載の原子炉の使用済燃料貯蔵設
備。[Scope of Claims] 1. In a spent fuel storage facility for a nuclear reactor, which is installed in a concrete building and stores spent fuel until it is transported outside the reactor facility, A ventilation duct cover is provided that houses a spent fuel storage pot for storing fuel and surrounds the spent fuel storage pot from the outside, and an inner flow passage is provided within the ventilation duct cover, and an inner flow passage is provided outside of the ventilation duct cover between the inside of the building and the spent fuel storage pot. outer flow passages are formed, and the outer flow passages communicate with the inner flow passages through communication holes provided at the bottom of the ventilation passage cover, while the outer flow passages and the inner flow passages communicate with the walls of the building. Spent fuel storage equipment for a nuclear reactor, characterized in that it communicates with outside air through an outside air inlet and an outside air outlet that are provided through it. 2. The spent fuel storage facility for a nuclear reactor according to claim 1, wherein a draft chimney is attached to the outside air side of the outside air outlet. 3. The spent fuel storage facility for a nuclear reactor as set forth in claim 1, wherein fins are attached to the outer peripheral surface of the spent fuel storage pot to promote heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61206717A JPS6363996A (en) | 1986-09-04 | 1986-09-04 | Spent-fuel storage facility for nuclear reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61206717A JPS6363996A (en) | 1986-09-04 | 1986-09-04 | Spent-fuel storage facility for nuclear reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6363996A true JPS6363996A (en) | 1988-03-22 |
Family
ID=16527940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61206717A Pending JPS6363996A (en) | 1986-09-04 | 1986-09-04 | Spent-fuel storage facility for nuclear reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6363996A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57175294A (en) * | 1981-03-30 | 1982-10-28 | English Electric Co Ltd | Storage device for nuclear fuel |
-
1986
- 1986-09-04 JP JP61206717A patent/JPS6363996A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57175294A (en) * | 1981-03-30 | 1982-10-28 | English Electric Co Ltd | Storage device for nuclear fuel |
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