JPS5932537B2 - Sodium purification equipment - Google Patents
Sodium purification equipmentInfo
- Publication number
- JPS5932537B2 JPS5932537B2 JP52006418A JP641877A JPS5932537B2 JP S5932537 B2 JPS5932537 B2 JP S5932537B2 JP 52006418 A JP52006418 A JP 52006418A JP 641877 A JP641877 A JP 641877A JP S5932537 B2 JPS5932537 B2 JP S5932537B2
- Authority
- JP
- Japan
- Prior art keywords
- main body
- sodium
- sectional shape
- horizontal cross
- inner cylinder
- 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
Links
- 229910052708 sodium Inorganic materials 0.000 title claims description 35
- 239000011734 sodium Substances 0.000 title claims description 35
- 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 title claims description 34
- 238000000746 purification Methods 0.000 title description 8
- 239000003507 refrigerant Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 description 9
- 239000012535 impurity Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 150000003385 sodium Chemical class 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
【発明の詳細な説明】 本発明は、ナトリウム精製装置に関するものである。[Detailed description of the invention] The present invention relates to a sodium purification device.
現在、わが国で開発途上の高速増殖炉は、熱媒体として
金属ナトリウムを使用することになっている。Fast breeder reactors currently under development in Japan are supposed to use metallic sodium as a heat medium.
このすｌ−ＩＪウムは、その性質上、活性なため、汚染
されやすいが、一方、比較的簡単な装置で精製して高純
度にすることができる。Due to its active nature, this Sl-IJium is susceptible to contamination, but on the other hand, it can be purified to high purity using relatively simple equipment.
そして、ナトリウム中高純度に維持する必要性は、構造
材料の腐食からの問題をなくシ、機器の運転や安全監視
上の要請などがある。The need to maintain high purity in sodium is due to the need to eliminate problems from corrosion of structural materials, as well as requirements for equipment operation and safety monitoring.
ナトリウムの精製には、従来、ナトリウム中の不純物溶
解度の差を利用したいわゆるコールドトラップによって
いる。Conventionally, sodium has been purified using a so-called cold trap that takes advantage of the difference in solubility of impurities in sodium.
しかも、従来のコールドトラップは内部に金網が充てん
されたいわゆるメツシュ型コールドトラップが大部分で
、この型式は浄化効率はすぐれているが、金網に不純物
が付着し、次第に浄化効率が低下し、目詰りをおこして
使用不能に至る欠点がある。Moreover, most conventional cold traps are so-called mesh-type cold traps with a wire mesh inside. Although this type has excellent purification efficiency, impurities adhere to the wire mesh and the purification efficiency gradually decreases. It has the disadvantage that it can become clogged and become unusable.
また金網光てん物によらないメツシュレスコールドトラ
ップは閉塞等の問題はないが、ナトリウムの浄化効率が
劣る欠点がある。In addition, meshless cold traps that do not rely on wire mesh or optical fibers do not have problems such as clogging, but they have the drawback of poor sodium purification efficiency.
本発明は、メツシュレスコールドトラップの上述の欠点
を解消するため、コールドトラップの原理である温度こ
う配による濃度拡散を利用し、不純物を効率よく除去す
ることを目的とする。The present invention aims to eliminate the above-mentioned drawbacks of mesh-less cold traps by efficiently removing impurities by utilizing concentration diffusion due to temperature gradient, which is the principle of cold traps.
またコールドトラップの不純物捕獲は、コールドトラッ
プ内の最低温度領域にすＩ−ＩＪウムをできるだけ長時
間停滞させることにより、捕獲効率をあげることができ
ることを応用し、大容量ナトリウムの精製を目的とする
。In addition, the capture efficiency of impurities in a cold trap can be increased by allowing the I-IJium to stagnate in the lowest temperature region for as long as possible in the cold trap, with the aim of purifying a large amount of sodium. .
このため、本発明の構成は、上部にナトリウム入口配管
を有して下部にドレン用配管を有する本体胴と、この本
体胴の内部に設けられて上部がナトリウム出口配管に連
結されて下部が該本体胴と連通した内筒とからなり、か
つ、前記本体胴の下部における内部水平断面形状がその
上部における内部水平断面形状よりも大きくなっている
とともに、前記内筒の下部における内部水平断面形状が
その上部における内部水平断面形状よりも大きくなって
おり、しかも、前記内筒の下部には、ナトリウムの流れ
を該本体胴の底部で複数回迂回せしめる多数の案内板を
備え、さらに、該本体胴の外側底部に設けられた冷媒入
口と、該本体胴の外側上部に設けられた冷媒出口とを備
えていることを特徴としている。For this reason, the present invention has a main body shell which has a sodium inlet pipe at the upper part and a drain pipe at the lower part, and which is provided inside the main body shell and whose upper part is connected to the sodium outlet pipe and whose lower part is connected to the sodium outlet pipe. an inner cylinder communicating with a main body cylinder, the internal horizontal cross-sectional shape of the lower part of the main body cylinder is larger than the internal horizontal cross-sectional shape of the upper part thereof, and the internal horizontal cross-sectional shape of the lower part of the inner cylinder is larger than the internal horizontal cross-sectional shape at the upper part, and furthermore, the lower part of the inner cylinder is provided with a number of guide plates for detouring the flow of sodium several times at the bottom of the main body shell; It is characterized by having a refrigerant inlet provided at the outer bottom of the main body, and a refrigerant outlet provided at the outer upper part of the main body.
以下、本発明の一実施例について、図面を参照しながら
説明する。An embodiment of the present invention will be described below with reference to the drawings.
図において、１は本体胴で、内部に内筒５を有している
。In the figure, reference numeral 1 denotes a main body, which has an inner cylinder 5 inside.
また本体胴１には、上部にすＩ−ＩＪウム入口配管２、
内筒５からのナトリウム出口配管３、底部にドレン用配
管４を備え、内筒５の下部には多数の案内板６が取付け
られ、ドレン用配管４にはドレン弁１２が取付けられて
いる。In addition, the main body shell 1 includes an I-IJ inlet pipe 2 at the upper part.
A sodium outlet pipe 3 from the inner cylinder 5 and a drain pipe 4 are provided at the bottom, a number of guide plates 6 are attached to the lower part of the inner cylinder 5, and a drain valve 12 is attached to the drain pipe 4.
さらに、本体胴１の囲りは、フィン１、加熱用ヒータ８
、その外側の保温材９で覆われており、冷媒としての冷
却用空気は本体胴１の底部に設けられた空気人口１５か
ら送風され、本体胴１の底部から側部フィン７の間を通
って、上部空気出口１６から排出される。Furthermore, the main body shell 1 is surrounded by fins 1 and a heating heater 8.
, is covered with a heat insulating material 9 on the outside, and cooling air as a refrigerant is blown from an air port 15 provided at the bottom of the main body shell 1, passing between the side fins 7 from the bottom of the main body shell 1. The air is then discharged from the upper air outlet 16.
この冷却用空気は、冷却空気人口１５のところに設けら
れたモータ１４の付いているファン１３によって送風さ
れる。This cooling air is blown by a fan 13 equipped with a motor 14 provided at a cooling air intake 15.
また本体胴１の底部のナトリウムの温度を計測するため
、熱電対１１を設けである。Additionally, a thermocouple 11 is provided to measure the temperature of the sodium at the bottom of the main body shell 1.
そしてまた、本体胴１の下部における内部水平断面形状
（内径）がその上部における内部水平断面形状（内径）
よりも大きくなっているとともに、内筒５の下部におけ
る内部水平断面形状（内径）がその上部における水平断
面形状（内径）よりも大きくなっている。Also, the internal horizontal cross-sectional shape (inner diameter) at the lower part of the main body shell 1 is the internal horizontal cross-sectional shape (inner diameter) at the upper part.
In addition, the internal horizontal cross-sectional shape (inner diameter) at the lower part of the inner cylinder 5 is larger than the horizontal cross-sectional shape (inner diameter) at the upper part.
つまり、だるま型になっている。In other words, it is shaped like a potbell.
なおヒータ８は本装置内のナトリウムの予熱（約２００
℃）用に使用し、精製中は使用する場合もあるが、通常
は使用しないものとし、また案内板６に付着した不純物
の除去にあたって加熱用に使用する。The heater 8 is used to preheat the sodium in this device (approx.
℃), and although it may be used during purification, it is not normally used, and is also used for heating when removing impurities attached to the guide plate 6.
このように構成されたナトリウム精製装置においては、
被精製ナトリウムは、図示されていない主ループからポ
ンプで流動させて、矢印１８で示すように、本体胴１の
ナトリウム入口配管２により流入し、内筒５の外側を流
下し、次第に冷却されて本体胴１の底部に至る。In the sodium purification device configured in this way,
The sodium to be purified is made to flow by a pump from a main loop (not shown), flows through the sodium inlet pipe 2 of the main body shell 1 as shown by arrow 18, flows down the outside of the inner cylinder 5, and is gradually cooled. It reaches the bottom of the main body trunk 1.
そしてこのナトリウムは最初の案内板６と次の案内板６
との間を通ることにより方向を上向きに変えられて上昇
し、第２の案内板と第３の案内板との間を下降し、第３
の案内板と第４の案内板との間を上昇する。And this sodium is the first guide plate 6 and the next guide plate 6
The direction is changed upward by passing between the second guide plate and the third guide plate, and the third guide plate
and the fourth guide plate.
案内板６は、このように本体胴１の底部で最も温度の低
い領域にすＩ−ＩＪウムが複数回迂回するように構成し
てあり、しかも、案内板６は流路迂回の作用のほか、こ
の低温領域での不純物核発生の作用を促進し、案内板６
に不純物が付着することによる不純物捕獲作用を兼ねる
。In this way, the guide plate 6 is configured so that the I-IJ flow around the lowest temperature region at the bottom of the body shell 1 is detoured multiple times. , promotes the action of impurity nucleation in this low temperature region, and guide plate 6
It also acts as an impurity trap when impurities are attached to the surface.
すなわち、第１、第３．１ ・・・・・・の案内板の下
部と本体胴１の底部との間には、ナＩ−１，１ウムが迂
回するに充分な大きさの間隙を設けであるほか、第２、
第４、・・・・・・の案内板の下部と本体胴１の底部と
の間にも、適当な間隙を設けてナトリウムドレンできる
ようにしである。That is, between the lower part of the first, 3.1, . In addition to the provision, the second
An appropriate gap is also provided between the lower part of the fourth guide plate and the bottom of the main body shell 1 so that sodium can be drained.
このようにして、迂回している間に精製されたナトリウ
ムは、内筒５の内部を上昇し、矢印１９で示すように、
ナトリウム出口配管３から図示されていないエコノマイ
ザを経て主ループへもどり、循環を繰返えす。In this way, the purified sodium rises inside the inner cylinder 5 during the detour, and as shown by the arrow 19,
The sodium exit pipe 3 returns to the main loop via an economizer (not shown), and the circulation is repeated.
ナｌ−ＩＪウム純度は、別途、図示されていない純度計
で計測する。The sodium purity is measured separately using a purity meter (not shown).
ナＩ−ＩＪウム流量および冷却空気量は、純度に最適な
ものをあらかじめ予備試験で選定することができる。The flow rate of NaI-IJ and the amount of cooling air that are optimal for purity can be selected in advance through a preliminary test.
また純化に最適なコールドトラップ温度を熱電対１１に
よって測定し、冷却風量を決める。Furthermore, the optimum cold trap temperature for purification is measured by a thermocouple 11, and the cooling air volume is determined.
なお図中、１０は充てん材、１７は整流板を示したもの
で、これらは必ずしも必要ではないが、図示のように設
ける場合は、充てん材１０は目詰りを生じない荒目のも
のとするがよい。In the figure, 10 indicates a filler material and 17 indicates a rectifying plate. Although these are not necessarily required, when provided as shown, the filler material 10 should have a rough mesh that will not cause clogging. Good.
したがって、本発明は、上部にナトリウム出口配管とナ
トリウム出口配管を有して下部にドレン用配管を有する
本体胴と、この本体胴の内部に設けられて上部が前記ナ
トリウム出口配管に連結されて下部が該本体胴と連通し
た内筒とからなり、かつ、この内筒の下部には、ナＩ−
１，１ウムの流れを本体胴底部で複数回迂回せしめる多
数の案内板を備えているから、ナトリウムは、最低温度
領域の該案内板のところで、長時間をかけて通過するこ
とになり、高い効率で精製され、かつ、目詰りを起すこ
ともなく、ドレンの取出しも容易であり、しかも、大量
のナトリウム精製に適し、コールドトラップの高さを低
くして建設費を著しく低減することができるうえ、前記
本体胴の下部における内部水平断面形状がその上部にお
ける内部水平断面形状よりも大きくなっているとともに
、前記内筒の下部における内部水平断面形状がその上部
における内部水平断面形状よりも大きくなっているので
、前記多数の案内板の各間の迂回通路を長くすることが
できるとともに、ナトリウムの冷却が主として前記本体
胴の底部の広いところで行なわれ、その冷却が冷熱源の
近い領域で長い時間にわたって行なわれるなど、本発明
の奏する効果は、きわめて犬である。Therefore, the present invention provides a main body shell having a sodium outlet pipe and a sodium outlet pipe in an upper part and a drain pipe in a lower part, and a lower part provided inside the main body shell and having an upper part connected to the sodium outlet pipe. consists of an inner cylinder communicating with the main body, and at the bottom of the inner cylinder there is a naive cylinder.
Since it is equipped with a large number of guide plates that detour the flow of 1.1 um multiple times at the bottom of the main body, the sodium takes a long time to pass through the guide plates in the lowest temperature region, resulting in high It purifies efficiently, does not cause clogging, and is easy to drain. Moreover, it is suitable for purifying large amounts of sodium, and the height of the cold trap can be lowered to significantly reduce construction costs. Moreover, the internal horizontal cross-sectional shape of the lower part of the main body barrel is larger than the internal horizontal cross-sectional shape of the upper part thereof, and the internal horizontal cross-sectional shape of the lower part of the inner cylinder is larger than the internal horizontal cross-sectional shape of the upper part thereof. Therefore, it is possible to lengthen the bypass passage between each of the plurality of guide plates, and cooling of the sodium is mainly performed in a wide area at the bottom of the main body, and the cooling is carried out for a long time in an area near the cold source. The effects of the present invention, such as being carried out over many years, are extremely impressive.
図は本発明の一実施例を示した縦断立面図である。
１・・・・・・本体胴、２・・・・・・ナトリウム入口
配管、３・・・・・・ナトリウム出口配管、４・・・・
・・ドレン用配管、５・・・・−・内筒、６・・・・・
・案内板、１１・・・・・・熱電対、１５・・・・・・
冷却空気入口、１６・・・・・・冷却空気出口。The figure is a longitudinal sectional elevational view showing one embodiment of the present invention. 1... Main body shell, 2... Sodium inlet piping, 3... Sodium outlet piping, 4...
・・Drain piping, 5・・・・−・Inner cylinder, 6・・・・・
・Information board, 11...Thermocouple, 15...
Cooling air inlet, 16... Cooling air outlet.
Claims (1)
配管を有する本体胴と、この本体胴の内部に設けられて
上部がナトリウム出口配管に連結されて下部が該本体胴
と連通した内筒とからなり、かつ、前記本体胴の下部に
おける内部水平断面形状がその上部における内部水平断
面形状よりも大きくなっているとともに、前記内筒の下
部における内部水平断面形状がその上部における内部水
平断面形状よりも大きくなっており、しかも、前記内筒
の下部には、ナトリウムの流れを該本体胴の底部で複数
回迂回せしめる多数の案内板を備え、さらに、該本体胴
の外側底部に設けられた冷媒入口と、該本体胴の外側上
部に設けられた冷媒出口とを備えてなる、ナｌ−’Ｊウ
ム精製装置。1. A main body cylinder having a sodium inlet pipe in the upper part and a drain pipe in the lower part, and an inner cylinder provided inside the main body cylinder and having an upper part connected to the sodium outlet pipe and a lower part communicating with the main body cylinder. and the internal horizontal cross-sectional shape at the lower part of the main body cylinder is larger than the internal horizontal cross-sectional shape at the upper part, and the internal horizontal cross-sectional shape at the lower part of the inner cylinder is larger than the internal horizontal cross-sectional shape at the upper part. Moreover, the lower part of the inner cylinder is equipped with a number of guide plates that detour the flow of sodium several times at the bottom of the main body, and the refrigerant is provided at the outer bottom of the main body. A sodium refining device comprising an inlet and a refrigerant outlet provided on the upper outer side of the main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52006418A JPS5932537B2 (en) | 1977-01-25 | 1977-01-25 | Sodium purification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52006418A JPS5932537B2 (en) | 1977-01-25 | 1977-01-25 | Sodium purification equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5392314A JPS5392314A (en) | 1978-08-14 |
| JPS5932537B2 true JPS5932537B2 (en) | 1984-08-09 |
Family
ID=11637814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52006418A Expired JPS5932537B2 (en) | 1977-01-25 | 1977-01-25 | Sodium purification equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5932537B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5499021A (en) * | 1978-01-21 | 1979-08-04 | Toshiba Corp | Cold trap |
| GB8325936D0 (en) * | 1983-09-28 | 1983-11-23 | Atomic Energy Authority Uk | Cold trap apparatus |
-
1977
- 1977-01-25 JP JP52006418A patent/JPS5932537B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5392314A (en) | 1978-08-14 |
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| JPS6027309Y2 (en) | solar heat collector | |
| JPS6394191A (en) | Cold trap |