JPS62299005A - Superconducting magnet device - Google Patents
Superconducting magnet deviceInfo
- Publication number
- JPS62299005A JPS62299005A JP61143836A JP14383686A JPS62299005A JP S62299005 A JPS62299005 A JP S62299005A JP 61143836 A JP61143836 A JP 61143836A JP 14383686 A JP14383686 A JP 14383686A JP S62299005 A JPS62299005 A JP S62299005A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- liquid helium
- vacuum
- heat
- 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.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 229910052734 helium Inorganic materials 0.000 claims abstract description 21
- 239000001307 helium Substances 0.000 claims abstract description 21
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003507 refrigerant Substances 0.000 claims description 17
- 238000005057 refrigeration Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000005494 condensation Effects 0.000 abstract description 3
- 238000009833 condensation Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 abstract description 2
- 239000002826 coolant Substances 0.000 abstract 3
- 238000007710 freezing Methods 0.000 abstract 1
- 230000008014 freezing Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- SWQJXJOGLNCZEY-NJFSPNSNSA-N helium-6 atom Chemical compound [6He] SWQJXJOGLNCZEY-NJFSPNSNSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C3/00—Vessels not under pressure
- F17C3/02—Vessels not under pressure with provision for thermal insulation
- F17C3/08—Vessels not under pressure with provision for thermal insulation by vacuum spaces, e.g. Dewar flask
- F17C3/085—Cryostats
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2203/00—Vessel construction, in particular walls or details thereof
- F17C2203/06—Materials for walls or layers thereof; Properties or structures of walls or their materials
- F17C2203/068—Special properties of materials for vessel walls
- F17C2203/0687—Special properties of materials for vessel walls superconducting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/01—Pure fluids
- F17C2221/016—Noble gases (Ar, Kr, Xe)
- F17C2221/017—Helium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2270/00—Applications
- F17C2270/05—Applications for industrial use
- F17C2270/0509—"Dewar" vessels
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
Description
【発明の詳細な説明】
３、発明の詳細な説明
〔産業上の利用分野〕
この発明は超電導マグネット装置に関し、特にそのクラ
イオスタンドの構造に関するものである。[Detailed Description of the Invention] 3. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a superconducting magnet device, and particularly to the structure of its cryostand.
従来の超電導マグネット装置は、第２回に示すように、
超電４コイル２０及び液体ヘリウム２１を収納したクラ
イオスタンド２２と冷凍ユニット２３とから成り、冷凍
ユニット２３のＪ−Ｔ弁２４において生成された４、３
’にの冷媒（気液混合体）は、両者の間に設けられた低
温配管２５内の冷媒管２６を通じてクライオスタンド２
２内の錆縮熱交換器２７に移送するようになっている。Conventional superconducting magnet devices, as shown in Part 2,
It consists of a cryostand 22 and a refrigeration unit 23 that house superelectric 4 coils 20 and liquid helium 21.
The refrigerant (gas-liquid mixture) is delivered to the cryostand 2 through the refrigerant pipe 26 in the low temperature pipe 25 provided between the
It is designed to be transferred to a rust heat exchanger 27 in the rust heat exchanger 2.
しかし、低温配管２５に通じた冷媒管２６を通じて冷媒
を移送するようにすると、移送の途中において低温配管
２５の熱絶縁層から浸入する熱及び冷媒管２６を伝導し
てクライオスタンド２２内へ浸入する熱負荷のため、冷
媒の冷却能力を十分に活用することができなかった。例
えば、Ｊ−Ｔ弁において４．３°Ｋ、３Ｗの冷却能力を
もっていても、低温配管２５を通過する間に約ＩＷの損
失が生しることが知られている。However, if the refrigerant is transferred through the refrigerant pipe 26 that communicates with the low-temperature pipe 25, heat that enters from the thermal insulation layer of the low-temperature pipe 25 during the transfer and conducts the refrigerant pipe 26 and enters into the cryostand 22. Due to the heat load, the cooling capacity of the refrigerant could not be fully utilized. For example, it is known that even if the J-T valve has a cooling capacity of 4.3°K and 3W, a loss of about IW occurs while passing through the low-temperature pipe 25.
そこで、上記の問題点を解決するために、この発明は冷
凍ユニット２３とクライオスタンド２２の真空容器を一
体化することにより、低温配管２５を省略し、Ｊ−Ｔ弁
２４から直接凝１ｉｌｌ熱交換器２７へ供給することに
より、冷媒の冷却能力の…失をできるだけ少なくするこ
とを目的とするものである。Therefore, in order to solve the above-mentioned problems, the present invention integrates the refrigeration unit 23 and the vacuum container of the cryostand 22, thereby omitting the low temperature piping 25 and directly condensing 1ill heat exchange from the J-T valve 24. By supplying the refrigerant to the refrigerant 27, the purpose is to minimize the loss of cooling capacity of the refrigerant.
この発明は前記の問題点を解決するために、真空外容器
の内部に液体ヘリウム槽を設け、その液体ヘリウム槽内
に超電導コイル及び凝縮熱交換器を収納し、冷凍ユニッ
トから上記凝縮熱交換器にＪ−Ｔ弁を介して冷媒を供給
するようにした超電導マグネット装置において、上記冷
凍ユニットの熱交換器及びＪ−Ｔ弁を上記の真空外容器
の内部に設けた構成としたものである。In order to solve the above problems, this invention provides a liquid helium tank inside a vacuum outer container, stores a superconducting coil and a condensing heat exchanger in the liquid helium tank, and connects the condensing heat exchanger to the refrigeration unit. A superconducting magnet device in which a refrigerant is supplied through a J-T valve, wherein the heat exchanger of the refrigeration unit and the J-T valve are provided inside the vacuum outer container.
第り図に示す超電導マグネット装置のクライオスタンド
は、真空外容器１と、その内部において公知の手段によ
り支持された液体）リウム槽２を有し、両者の間に熱シ
ールド板３を設け、真空外容器１と熱シールド板３の間
及び熱シールド板３と液体ヘリウム槽２の間にそれぞれ
真空室４．５を設けたものである。The cryostand of the superconducting magnet device shown in Fig. 3 has an outer vacuum container 1 and a liquid (liquid) tank 2 supported by a known means inside the outer vacuum container 1. A heat shield plate 3 is provided between the two, and the vacuum Vacuum chambers 4.5 are provided between the outer container 1 and the heat shield plate 3 and between the heat shield plate 3 and the liquid helium tank 2, respectively.
液体ヘリウム槽２の内部には液体ヘリウム６が充填され
、その中に超電導コイル７が浸漬される。Liquid helium tank 2 is filled with liquid helium 6, and superconducting coil 7 is immersed therein.
また、液体ヘリウム槽２内には凝縮熱交換器８が設けら
れる。Further, a condensing heat exchanger 8 is provided within the liquid helium tank 2 .
一方、真空外容器１の外部には、通常の冷凍機９のほか
にＧ Ｍ ’／＠ ａ機１０（ギルフォード・マクマホ
ン、ジュールトムソン回路を備えた小型冷凍機）が設置
される。また真空外容器１と熱シールド板３の間の真空
室４に第１熱交換器１１が設置される。また、熱シール
ド板３と液体ヘリウム槽２間の真空室５には第２および
第３熱交換器１２．１３が設置され、また第３熱交換器
１３と液体ヘリウム槽２との間にはＪ−Ｔ弁１４．が設
置される。On the other hand, outside the vacuum container 1, in addition to a normal refrigerator 9, a GM'/@a machine 10 (a small refrigerator equipped with a Guilford-McMahon and Joule-Thomson circuit) is installed. Further, a first heat exchanger 11 is installed in the vacuum chamber 4 between the vacuum outer container 1 and the heat shield plate 3. Further, second and third heat exchangers 12 and 13 are installed in the vacuum chamber 5 between the heat shield plate 3 and the liquid helium tank 2, and between the third heat exchanger 13 and the liquid helium tank 2, J-T valve 14. will be installed.
冷媒管１５は、これらの各熱交換器及びＪ−Ｔ弁１４を
経て液体ヘリウム槽２内に導入され、前記の凝縮熱交換
器８に接続される。冷媒管１５が真空外容器１及び液体
ヘリウム槽２を貫通する部分は溶接によって真空シール
が図られる。The refrigerant pipe 15 is introduced into the liquid helium tank 2 through each of these heat exchangers and the J-T valve 14, and is connected to the condensing heat exchanger 8 described above. The portion where the refrigerant pipe 15 penetrates the vacuum outer container 1 and the liquid helium tank 2 is vacuum-sealed by welding.
なお、−ｍにクライオスタットには、液体ヘリウムの供
給、電流リード引出し用の各ポート及び安全弁などが装
備されるが、図面上は省略してい〔発明の効果〕
以上のように、この発明においては、従来別個に設けら
れていた冷凍ユニットの熱交換器及びＪ−Ｔ弁をクライ
オスタットの真空外容器の内部に設けたことにより、Ｊ
−Ｔ弁において生成された４、３°にの冷媒（気液混合
体）は、直接液体ヘリウム槽の凝縮熱交換に供給される
。したがって、冷媒管内での熱負荷による冷却能力の損
失はほとんどないので、冷媒の冷却能力をフルに活用す
ることができる。Note that the -m cryostat is equipped with ports for supplying liquid helium, ports for drawing out current leads, safety valves, etc., but these are omitted in the drawing. [Effect of the Invention] As described above, in this invention, J
- The refrigerant (gas-liquid mixture) at 4.3° produced in the T-valve is directly supplied to the condensation heat exchanger of the liquid helium tank. Therefore, there is almost no loss in cooling capacity due to heat load within the refrigerant pipes, so the cooling capacity of the refrigerant can be fully utilized.
また、従来のごとき低温配管は不要であるので、その配
管の接続ポートが不要となり、液体ヘリウム槽内への熱
の浸入が少なくなる効果もある。Furthermore, since the conventional low-temperature piping is not required, a connection port for the piping is no longer necessary, which has the effect of reducing heat intrusion into the liquid helium tank.
第１図に実施例の断面図、第２図は従来例の断面図であ
る。
１・・・・・・真空外容器、２・・・・・・液体ヘリウ
ム槽、３・・・・・・熱シールド仮、４．５・・・・・
・真空室、６・・・・・・液体ヘレウム、７・・・・・
・超電Ｗコイル、８・・・・・・凝１宿熱交換器、Ｓ・
・・・・・冷凍機、１０・・・・・・ＧＭ冷凍機、１１
．１２．１３・・・・・・熱交換器、１４・・・・・・
Ｊ−Ｔ弁、１５・・・・・・冷媒管。
特許出願人 住友電気工業株式会社同 代理人
鎌 １） 文 二第１図
第２図FIG. 1 is a sectional view of the embodiment, and FIG. 2 is a sectional view of the conventional example. 1... Vacuum outer container, 2... Liquid helium tank, 3... Temporary heat shield, 4.5...
・Vacuum chamber, 6...Liquid heleum, 7...
・Superelectric W coil, 8...Condenser 1 storage heat exchanger, S・
... Refrigerator, 10 ... GM refrigerator, 11
．． 12.13...Heat exchanger, 14...
J-T valve, 15... Refrigerant pipe. Patent applicant Sumitomo Electric Industries, Ltd. Agent
Sickle 1) Sentence 2 Figure 1 Figure 2
Claims (1)
ヘリウム槽内に超電導コイル及び凝縮熱交換器を収納し
、冷凍ユニットから上記凝縮熱交換器にＪ−Ｔ弁を介し
て冷媒を供給するようにした超電導マグネット装置にお
いて、上記冷凍ユニットの熱交換器及びＪ−Ｔ弁を上記
の真空外容器の内部に設けたことを特徴とする超電導マ
グネット装置。A liquid helium tank is provided inside the vacuum outer container, a superconducting coil and a condensing heat exchanger are housed in the liquid helium tank, and refrigerant is supplied from the refrigeration unit to the condensing heat exchanger via a J-T valve. A superconducting magnet device characterized in that the heat exchanger and J-T valve of the refrigeration unit are provided inside the vacuum outer container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61143836A JPS62299005A (en) | 1986-06-18 | 1986-06-18 | Superconducting magnet device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61143836A JPS62299005A (en) | 1986-06-18 | 1986-06-18 | Superconducting magnet device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62299005A true JPS62299005A (en) | 1987-12-26 |
Family
ID=15348075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61143836A Pending JPS62299005A (en) | 1986-06-18 | 1986-06-18 | Superconducting magnet device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62299005A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003022907A (en) * | 2001-07-09 | 2003-01-24 | Kyushu Electric Power Co Inc | Superconducting magnet |
| GB2459104A (en) * | 2008-04-09 | 2009-10-14 | Siemens Magnet Technology Ltd | Cryostat comprising a thermal sink located within an outer vacuum chamber |
| JP2010046344A (en) * | 2008-08-22 | 2010-03-04 | Sumitomo Heavy Ind Ltd | Living body magnetic field measuring instrument |
| CN110998759A (en) * | 2017-07-17 | 2020-04-10 | 皇家飞利浦有限公司 | Superconducting magnet with cold head thermal path cooled by heat exchanger |
-
1986
- 1986-06-18 JP JP61143836A patent/JPS62299005A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003022907A (en) * | 2001-07-09 | 2003-01-24 | Kyushu Electric Power Co Inc | Superconducting magnet |
| GB2459104A (en) * | 2008-04-09 | 2009-10-14 | Siemens Magnet Technology Ltd | Cryostat comprising a thermal sink located within an outer vacuum chamber |
| GB2459104B (en) * | 2008-04-09 | 2010-04-07 | Siemens Magnet Technology Ltd | Cryostat |
| JP2010046344A (en) * | 2008-08-22 | 2010-03-04 | Sumitomo Heavy Ind Ltd | Living body magnetic field measuring instrument |
| CN110998759A (en) * | 2017-07-17 | 2020-04-10 | 皇家飞利浦有限公司 | Superconducting magnet with cold head thermal path cooled by heat exchanger |
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