JPS63256896A - Method of utilizing waste heat from spent fuel storage facility - Google Patents
Method of utilizing waste heat from spent fuel storage facilityInfo
- Publication number
- JPS63256896A JPS63256896A JP62089811A JP8981187A JPS63256896A JP S63256896 A JPS63256896 A JP S63256896A JP 62089811 A JP62089811 A JP 62089811A JP 8981187 A JP8981187 A JP 8981187A JP S63256896 A JPS63256896 A JP S63256896A
- Authority
- JP
- Japan
- Prior art keywords
- spent fuel
- heat
- waste heat
- storage silo
- nitrogen
- 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 24
- 239000002918 waste heat Substances 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 27
- 239000008188 pellet Substances 0.000 claims description 20
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000000446 fuel Substances 0.000 claims description 5
- 239000011819 refractory material Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 description 3
- OOAWCECZEHPMBX-UHFFFAOYSA-N oxygen(2-);uranium(4+) Chemical compound [O-2].[O-2].[U+4] OOAWCECZEHPMBX-UHFFFAOYSA-N 0.000 description 2
- FCTBKIHDJGHPPO-UHFFFAOYSA-N uranium dioxide Inorganic materials O=[U]=O FCTBKIHDJGHPPO-UHFFFAOYSA-N 0.000 description 2
- MVXWAZXVYXTENN-UHFFFAOYSA-N azanylidyneuranium Chemical compound [U]#N MVXWAZXVYXTENN-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 238000011084 recovery Methods 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
-
- 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
- Solid Fuels And Fuel-Associated Substances (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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は使用済の核燃料からの崩壊熱を回収する方法に
係り、特に使用済燃料ペレットを貯蔵しながら、その崩
壊熱を回収するための使用済燃料貯蔵設備の廃熱利用方
法に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a method for recovering decay heat from spent nuclear fuel, and in particular to a method for recovering decay heat from spent fuel pellets while storing them. This paper relates to a method for utilizing waste heat from spent fuel storage facilities.
［従来の技術］
原子炉燃料として、二酸化ウラン（ＵＯ２）、窒化ウラ
ン（ＵＮ）などセラミック燃料をペレット状にした燃料
ペレットが使用されている。[Prior Art] Fuel pellets made of ceramic fuel such as uranium dioxide (UO2) and uranium nitride (UN) are used as nuclear reactor fuel.
従来この照射侵の使用済燃料ペレットの処理は単に′格
納貯蔵庫に収納している。Conventionally, the irradiated spent fuel pellets are simply stored in storage.
［発明が解決しようとする問題点］
しかしながら、使用済燃料ペレットは、その崩壊熱が１
トン当り数キロワット近くあり、これをそのまま捨てた
のではエネルギーが無駄となる。[Problems to be solved by the invention] However, spent fuel pellets have a decay heat of 1
Each ton is close to several kilowatts, so if you just throw it away, it would be a waste of energy.
本発明は、上記事情を考慮してなされたもので、使用済
燃料ペレットを貯蔵しながら、その崩壊熱を有効に回収
できる使用済燃料計＊設備の廃熱利用方法を提供するこ
とを目的とする。The present invention has been made in consideration of the above circumstances, and an object thereof is to provide a method for utilizing waste heat of a spent fuel meter* facility, which can effectively recover the decay heat of spent fuel pellets while storing them. do.
［問題点を解決するための手段及び作用］本発明は上記
の目的を達成するために、使用済燃料ペレットを耐火物
よりなる貯蔵サイロに充填し、その貯蔵サイロの下部よ
り窒素を吹き込んで燃料ペレットの崩壊熱を吸収し、そ
の高温となった窒素を中間熱交換器を通して冷却水と熱
交換させたのち貯蔵サイロへ循環するようにしたもので
、使用済燃料を貯蔵した貯蔵サイロ内に窒素を吹き込む
ことでその崩壊熱を吸収し、その吸収熱を中間熱交換器
にて冷却水に回収することで廃熱を有効に使用できるよ
゛）にしたものである。[Means and effects for solving the problems] In order to achieve the above object, the present invention charges spent fuel pellets into a storage silo made of refractory material, blows nitrogen into the storage silo from the lower part of the storage silo, and injects fuel into the silo. This system absorbs the decay heat of the pellets, exchanges heat with cooling water through an intermediate heat exchanger, and then circulates the nitrogen into the storage silo where the spent fuel is stored. The waste heat can be used effectively by absorbing the decay heat by blowing it into the tank, and recovering the absorbed heat as cooling water in an intermediate heat exchanger.
［実施例］
以下、本発明の使用済燃料貯１ｉ１２設備の廃熱利用方
法の好適一実施例を添付図面に基づいて説明する。[Embodiment] Hereinafter, a preferred embodiment of the method for utilizing waste heat of a spent fuel storage 1i12 facility of the present invention will be described based on the accompanying drawings.
添付図面は本発明の方法を実施する装置を示し、図にお
いて、１は耐火物からなる貯蔵サイ］コで、その上部に
、使用済燃ｆ’ｌペレット２の投入口３が形成され、そ
の投入口３から貯蔵サイロ１内に使用済燃料ペレット２
が投入され充填される。The accompanying drawing shows an apparatus for carrying out the method of the present invention, and in the drawing, 1 is a storage cylinder made of refractory material, in the upper part of which an input port 3 for spent fuel pellets 2 is formed; Spent fuel pellets 2 are placed in the storage silo 1 from the input port 3.
is added and filled.
この貯蔵サイロ１の底部には窒素吹込口４が設けられ、
また頂部には窒素吹出口５が設けられる。A nitrogen inlet 4 is provided at the bottom of the storage silo 1,
Further, a nitrogen outlet 5 is provided at the top.
貯蔵サイロ１には、その吹出口５から中間熱交換器６、
送風機７を介し吹込口４を通じて貯蔵サイロ１内に空気
を循環する循環路８が接続される。The storage silo 1 has an intermediate heat exchanger 6 from its outlet 5,
A circulation path 8 is connected to circulate air inside the storage silo 1 through the blower 7 and the air inlet 4 .
中間熱交換器６は、その中間熱交換器６を通る空気と熱
交換する伝熱管９を有し、その伝熱管９に冷却水が供給
される。The intermediate heat exchanger 6 has heat exchanger tubes 9 that exchange heat with the air passing through the intermediate heat exchanger 6, and cooling water is supplied to the heat exchanger tubes 9.
以上において、送風機７により窒素が吹出口４より貯蔵
サイロ１内に吹き込まれ、その窒素が使用済燃料ペレッ
ト２と接触しながら上昇する間に、使用済燃料ペレット
２の崩壊熱をうばって昇温される。この窒素は、使用済
燃料ペレット２の温度が１０００℃程度でも安定である
ため、約８００℃程度までＩＱすることができる。In the above, nitrogen is blown into the storage silo 1 from the air outlet 4 by the blower 7, and while the nitrogen rises while contacting the spent fuel pellets 2, the temperature rises by absorbing the decay heat of the spent fuel pellets 2. be done. Since this nitrogen is stable even when the temperature of the spent fuel pellets 2 is about 1000°C, the IQ can be increased to about 800°C.
次いで高温の窒素は、循環路８より中間熱交換器６に導
入され、そこで伝熱管９内を通る冷ＩＪ＋水を加熱して
高渇水としたのち、再度送Ｉｉ１機７により貯蔵サイロ
゛１内に循環され、上述のように使用済燃料ペレット１
の崩壊熱を回収することとなる。Next, the high temperature nitrogen is introduced into the intermediate heat exchanger 6 from the circulation path 8, where it heats the cold IJ+ water passing through the heat transfer tube 9 to make it highly dry, and then returns it to the storage silo 1 by the transfer Ii 1 unit 7. The spent fuel pellets 1 are recycled as described above.
The decay heat will be recovered.
使用済燃料ペレット２の冷却用窒素は高温にすることが
できるため、熱効率よく廃熱を回収することができる。Since the nitrogen for cooling the spent fuel pellets 2 can be heated to a high temperature, waste heat can be recovered with high thermal efficiency.
また貯蔵サイロ１は耐火物で形成されるため、使用済燃
料ペレット２の貯蔵に充分耐え得る熱強瓜を有する。Moreover, since the storage silo 1 is made of refractory material, it has a heat resistant capacity that can sufficiently withstand the storage of the spent fuel pellets 2.
［発明の効果］
以上説明してきたことから明らかなように本発明によれ
ば次のごとき優れた効果を発揮する。[Effects of the Invention] As is clear from the above explanation, the present invention exhibits the following excellent effects.
貯蔵サイロ内に使用済燃料ペレットを充填し、その燃料
ペレットの崩壊熱を循環窒素で回収すると共に、その循
環窒素の熱を中間熱交換器を通して高温水として回収す
ることで、廃熱回収が有効に行なえる。Waste heat recovery is effective by filling a storage silo with spent fuel pellets, recovering the decay heat of the fuel pellets with circulating nitrogen, and recovering the heat of the circulating nitrogen as high-temperature water through an intermediate heat exchanger. can be done.
添付図面は本発明の使用済燃料計ｊｉ！設備の廃熱利用
方法を実施する装置の一例を示す図である。
図中、１は貯蔵サイロ、２は使用済燃料ペレット、６は
中間熱交換器、８は窒素の循環路である。
特許出願人 石川島播磨重工業株式会社代理人弁理士
絹 谷 信 雄１・・・貝宇仄プイロ
２・・・イ火Ｗじｔｇ然゛イ牛へ°し０．７ト６・・・
ｑフ間然史Ｔ衾芳Ｌ
δ ゛イ届壊工谷−The attached drawing shows the spent fuel meter of the present invention! FIG. 2 is a diagram showing an example of a device that implements a method for utilizing waste heat of equipment. In the figure, 1 is a storage silo, 2 is a spent fuel pellet, 6 is an intermediate heat exchanger, and 8 is a nitrogen circulation path. Patent applicant: Ishikawajima-Harima Heavy Industries Co., Ltd. Representative Patent Attorney Nobuo Kinutani 1...Kai Uchipuiro 2...The fire was 0.7 to 6...
qfumanzenshiT 衾yoshiL δ
Claims (1)
し、その貯蔵サイロの下部より窒素を吹き込んで燃料ペ
レットの崩壊熱を吸収し、その高温となった窒素を中間
熱交換器を通して冷却水と熱交換させたのち貯蔵サイロ
へ循環することを特徴とする使用済燃料貯蔵設備の廃熱
利用方法。Spent fuel pellets are filled into a storage silo made of refractory material, nitrogen is blown into the bottom of the storage silo to absorb the decay heat of the fuel pellets, and the high-temperature nitrogen is passed through an intermediate heat exchanger to cool water and heat. A method for utilizing waste heat from a spent fuel storage facility, characterized in that the waste heat is circulated to a storage silo after being replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62089811A JPS63256896A (en) | 1987-04-14 | 1987-04-14 | Method of utilizing waste heat from spent fuel storage facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62089811A JPS63256896A (en) | 1987-04-14 | 1987-04-14 | Method of utilizing waste heat from spent fuel storage facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63256896A true JPS63256896A (en) | 1988-10-24 |
Family
ID=13981112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62089811A Pending JPS63256896A (en) | 1987-04-14 | 1987-04-14 | Method of utilizing waste heat from spent fuel storage facility |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63256896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275638A (en) * | 2005-03-28 | 2006-10-12 | Hitachi Ltd | Method of processing spent fuel |
| JP2009168775A (en) * | 2008-01-21 | 2009-07-30 | Tokyo Electric Power Co Inc:The | Heat recovery system of spent fuel |
-
1987
- 1987-04-14 JP JP62089811A patent/JPS63256896A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006275638A (en) * | 2005-03-28 | 2006-10-12 | Hitachi Ltd | Method of processing spent fuel |
| JP4575204B2 (en) * | 2005-03-28 | 2010-11-04 | 日立Ｇｅニュークリア・エナジー株式会社 | Spent fuel treatment method |
| JP2009168775A (en) * | 2008-01-21 | 2009-07-30 | Tokyo Electric Power Co Inc:The | Heat recovery system of spent fuel |
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