JPS61267379A - Reinforcing support apparatus of cryogenic vessel - Google Patents
Reinforcing support apparatus of cryogenic vesselInfo
- Publication number
- JPS61267379A JPS61267379A JP60108584A JP10858485A JPS61267379A JP S61267379 A JPS61267379 A JP S61267379A JP 60108584 A JP60108584 A JP 60108584A JP 10858485 A JP10858485 A JP 10858485A JP S61267379 A JPS61267379 A JP S61267379A
- Authority
- JP
- Japan
- Prior art keywords
- low
- temperature member
- reinforcing support
- reinforcing
- temperature
- 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
Links
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 5
- 238000007906 compression Methods 0.000 claims abstract description 5
- 239000004020 conductor Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 abstract description 3
- 230000035515 penetration Effects 0.000 abstract description 3
- 239000002826 coolant Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N60/00—Superconducting devices
- H10N60/80—Constructional details
- H10N60/81—Containers; Mountings
Landscapes
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
Description
この発明は極低温容器を常温外部空間より支持・離脱を
自在にした超電導マグネット装置の補強支持装置に関す
る。The present invention relates to a reinforcing and supporting device for a superconducting magnet device that allows a cryogenic container to be supported and detached from an external room at room temperature.
超電導コイルを内臓する超電導マグネット装置は、コイ
ルを超電導の状態にするために極低温冷媒で冷却するこ
とが必要で、この極低温冷媒へ常温側からの熱侵入を少
なくするために高度な断熱機構が不可欠である。極低温
冷媒への熱侵入経路としては主として極低温容器を常温
側より支える補強支持体および超電導コイルを励磁する
ために設けられた電流リードの経路である。
この侵入熱低減のため、補強支持体としては材料には熱
伝導率が小さく、機械的強度の高いものを用い、強度検
討の段階においては、材料の許容できる最大の応力値で
設計されるのが通常である。
このように設計・製作された補強支持体を有する超電導
マグネット装置において、通常の運転時には作用しない
力たとえば搬送時の加速度、衝撃力などが作用すると、
断熱支持体が破壊されるという問題があった。これに対
する対策として考えられた従来の一般的な補強支持構造
を第３図に示す。
補強支持体１と低温部材３と間に微小すき間Ｇを設けた
状態で常温部材２と補強支持体１とが気密的に溶接４さ
れた構造である。■は真空空間を示す。この構造では、
微小すき間Ｇは支持体の許容変位以内に収める必要があ
る。ところが極低温に冷却した際の支持体の材料の収縮
等により低温部材３と接触したり、また微小ずき間が大
きくなったりして微小すき間Ｇの設定が難しい。
これを解決するため第４図に示すような構造が採用され
ている。すなわち常温部材２に設けられた雌ねじ部２ａ
に補強支持材１１の雄ねじ部１１ａをねじ込み、これを
ねじ込んだり、締めることにより補強支持材１１の先端
で低温部材３を押えたり、離脱させたりできる構造であ
る。前記雌ねじ部２ａと雄ねじ部１１ａとの気密を保つ
ため、０リング５を介してカバー６を常温部材２に取付
は真空空間Ｖ］ における真空を維持している。
しかしこの構造では補強支持体１１での低温部材３の押
え、離脱作業時は、カバー６を取外して補強支持体１１
をねじ込みあるいは締めを行なうため、ねじ部の気密性
が失われ真空空間６の真空が破れ真空断熱機能を失うと
いう問題があった。A superconducting magnet device with a built-in superconducting coil needs to be cooled with a cryogenic refrigerant in order to bring the coil into a superconducting state, and an advanced insulation mechanism is used to reduce heat intrusion from the room temperature side into this cryogenic refrigerant. is essential. The heat intrusion path into the cryogenic refrigerant is mainly through the reinforcing support that supports the cryogenic container from the room temperature side and the current lead path provided to excite the superconducting coil. In order to reduce this heat intrusion, materials with low thermal conductivity and high mechanical strength are used for the reinforcing support, and in the strength study stage, the material is designed with the maximum allowable stress value of the material. is normal. When a superconducting magnet device having a reinforcing support body designed and manufactured in this way is subjected to forces that do not act during normal operation, such as acceleration or impact force during transportation,
There was a problem that the insulating support was destroyed. A conventional general reinforcing support structure considered as a countermeasure against this problem is shown in FIG. It has a structure in which the normal temperature member 2 and the reinforcing support 1 are airtightly welded 4 with a small gap G provided between the reinforcing support 1 and the low temperature member 3. ■ indicates a vacuum space. In this structure,
The minute gap G must be kept within the allowable displacement of the support. However, it is difficult to set the minute gap G because it may come into contact with the low-temperature member 3 due to shrinkage of the material of the support when it is cooled to an extremely low temperature, or the minute gap may become large. In order to solve this problem, a structure as shown in FIG. 4 is adopted. In other words, the female screw portion 2a provided in the normal temperature member 2
The structure is such that the male threaded portion 11a of the reinforcing support material 11 is screwed in, and by screwing in or tightening this, the low temperature member 3 can be held down or released at the tip of the reinforcing support material 11. In order to maintain airtightness between the female threaded portion 2a and the male threaded portion 11a, the cover 6 is attached to the normal temperature member 2 via the O-ring 5 to maintain the vacuum in the vacuum space V]. However, with this structure, when the reinforcing support 11 is used to hold and release the low-temperature member 3, the cover 6 must be removed and the reinforcing support 11
Since the screw is screwed in or tightened, there is a problem in that the airtightness of the screw portion is lost, the vacuum in the vacuum space 6 is broken, and the vacuum insulation function is lost.
この発明は上述した事情に鑑み、真空断熱空間の真空を
破ることなく低温部材を支持したり、また補強の必要の
ないときは離脱させて熱侵入経路を遮断できる補強支持
装置を提供することを目的とする。In view of the above-mentioned circumstances, it is an object of the present invention to provide a reinforcing support device that can support a low-temperature member without breaking the vacuum of a vacuum insulated space, and can be detached when reinforcement is not required to block a heat infiltration route. purpose.
この発明では上記目的達成のため次のような構成とした
。すなわち常温部材と低温部材との間に中間温度の中間
部材を設け、この中間部材に取付けられた案内部材と圧
縮スプリングとを介して上下方向に可動な補強支持体を
中間部材に貫通させ、常温部材に形成した気密機構にね
じ込まれた押しねじを操作することにより補強支持体が
前記案内部材に案内されながら上下動するようにした。
また補強支持体と中間部材との間には熱伝導的に連結す
るフレキシブル導体を設けることにより侵入熱量の低減
を図った。In order to achieve the above object, the present invention has the following configuration. In other words, an intermediate member having an intermediate temperature is provided between the normal temperature member and the low temperature member, and a reinforcing support member that is movable in the vertical direction is passed through the intermediate member via a guide member and a compression spring attached to the intermediate member. By operating a push screw screwed into an airtight mechanism formed on the member, the reinforcing support body is moved up and down while being guided by the guide member. Furthermore, by providing a flexible conductor that is thermally conductively connected between the reinforcing support and the intermediate member, the amount of heat that enters is reduced.
第１図、第２図はこの発明の実施例を示すもので、第１
図は補強支持体２１が低温部材３と分離した状態を、第
２図は補強支持体２１が低温部材３を押さえた状態を示
している。まず構造について説明すると、超電導コイル
とこれを極低温に冷却する冷媒を内臓した極低温容器の
低温部材３と、真空断熱のための真空空間Ｖを形成する
ための真空容器の常温部材２が対向した状態において両
部材２゜３間に輻射熱の侵入低減のために中間部材２２
を設ける。この中間部材２２を挟んでストッパー板２３
と案内部材２４が取付けられ、この部分を補強支持体２
１が貫通する。該補強支持体は、補強支持体に取付けら
れたスプリングホルダー２５と圧縮スプリング２６を介
して案内部材２４に案内されながら上下動可能なように
取付けられる。また補強支持体２１にはスプリングホル
ダー２５を介して常温部材２よりの伝導侵入熱を除去す
るために中間部材２２に取付けられた案内部材に伝熱性
のあるフレキシブル導体２７が連結されている。
常温部材２には支持体押え金具２８ａ、ベロー１２日す
。
ベローズ取付はフランジ２８ｃおよびねじ取付はフラン
ジ２８ｄが一体となった気密機構部２８が０リング２９
を介して取付けられる。この気密機構部２８のねじ取付
はフランジ２８ｄには補強支持体２１を押すための押し
ねじ棒３０が取付けられている。
このような構造にすれば第１図に示すように低温部材３
を押える必要のない通常運転時には、押しねじ棒３０を
締めると圧縮スプリング２６の力で補強支持体２１は低
温部材３から離れ、ある設定された距離だけ補強支持体
２１が動゛くと、補強支持体２１の凸部２１ａがストッ
パー板２３にあたって止まる。
さらに押しねじ棒３０を締めると、押え金具２８ａが補
強支持体２１より離れて第１図に示す状態となり、常温
部材２よりの熱伝導経路が遮断される。
第１図に示す状態から押しねじ棒３０をねじ込むと、押
え金具２８ａが補強支持体２１を押し、補強支持体２１
の先端部が低温部材３を押えた状態となる。
この状態を示したのが第２図である。このとき常温部か
ら補強支持体２１を経由する低温部への伝導侵入熱を低
減するために、補強支持体２１と中間部材３とを伝熱的
に連結するフレキシブル導体２７を設けである。Figures 1 and 2 show embodiments of this invention.
The figure shows a state in which the reinforcing support body 21 is separated from the low-temperature member 3, and FIG. 2 shows a state in which the reinforcing support body 21 presses the low-temperature member 3. First, to explain the structure, a low-temperature member 3 of a cryogenic container containing a superconducting coil and a refrigerant for cooling it to a cryogenic temperature, and a room-temperature member 2 of a vacuum container for forming a vacuum space V for vacuum insulation are facing each other. In this state, the intermediate member 22 is installed to reduce the penetration of radiant heat between the two members 2°3.
will be established. Stopper plate 23 with this intermediate member 22 in between
A guide member 24 is attached to the reinforcing support 2.
1 penetrates. The reinforcing support body is attached so as to be movable up and down while being guided by a guide member 24 via a spring holder 25 and a compression spring 26 attached to the reinforcing support body. Further, a heat conductive flexible conductor 27 is connected to the reinforcing support body 21 via a spring holder 25 to a guide member attached to the intermediate member 22 in order to remove conductive heat introduced from the room temperature member 2. The normal temperature member 2 has a support holding fitting 28a and a bellows 12. The airtight mechanism part 28 is integrated with a flange 28c for bellows mounting and a flange 28d for screw mounting.
Mounted via. For screw mounting of the airtight mechanism section 28, a push screw rod 30 for pushing the reinforcing support body 21 is attached to the flange 28d. With this structure, the low temperature member 3
During normal operation, when there is no need to press down, when the push screw rod 30 is tightened, the reinforcing support 21 is separated from the low-temperature member 3 by the force of the compression spring 26, and when the reinforcing support 21 moves by a certain set distance, the reinforcement The convex portion 21a of the support body 21 hits the stopper plate 23 and stops. When the press screw rod 30 is further tightened, the presser metal fitting 28a is separated from the reinforcing support 21 to be in the state shown in FIG. 1, and the heat conduction path from the normal temperature member 2 is cut off. When the press screw rod 30 is screwed in from the state shown in FIG.
The tip end is in a state where the low temperature member 3 is pressed down. FIG. 2 shows this state. At this time, in order to reduce conduction and intrusion heat from the normal temperature part to the low temperature part via the reinforcing support 21, a flexible conductor 27 is provided to connect the reinforcing support 21 and the intermediate member 3 in a thermally conductive manner.
この発明によれば、異常時のみ低温部材を支持するため
に補強支持体を可動構造とし、通常運転時に低温部と常
温部を熱伝導的に離脱させることができ、かつ補強支持
体の可動時には真空破壊をせずに操作しうる構造とした
ので、補強支持体から低温部材への伝導侵入熱を低減で
きるとともに冷却途中および冷却した状態でそのまま分
解することなく補強支持体で補強した搬送が可能となる
効果が奏する。According to this invention, the reinforcing support body has a movable structure in order to support the low-temperature member only in abnormal situations, and the low-temperature part and the normal temperature part can be thermally separated from each other during normal operation, and when the reinforcing support body is movable, Since it has a structure that allows operation without breaking the vacuum, it is possible to reduce conduction and intrusion heat from the reinforcing support to low-temperature components, and it is also possible to transport the product reinforced with the reinforcing support without disassembling it during cooling or in the cooled state. The effect is as follows.
第１図および第２図はこの発明の実施例を示す縦断面図
で、第１図は補強支持体が低温部材と分ｊ 離し
た状態を、第２図は補強支持体が低温部材を押えた状態
を示す。第３図は従来構造の補強支持装置の縦断面図、
第４図は従来構造の他の補強支持装置の縦断面図である
。
２：常温部材、３：低温部材、２１：補強支持体、２２
：中間部材、２７：フレキシブル導体、２８：気密機構
部、Ｖ：真空層。
Ａ１０−
第２図
第４図
−Ａ’ｐｎ−Figures 1 and 2 are longitudinal sectional views showing an embodiment of the present invention, with Figure 1 showing the reinforcing support separated from the low-temperature member, and Figure 2 showing the reinforcing support holding down the low-temperature member. Indicates the condition. Figure 3 is a vertical cross-sectional view of a reinforcement support device with a conventional structure.
FIG. 4 is a longitudinal sectional view of another reinforcing support device of conventional structure. 2: Normal temperature member, 3: Low temperature member, 21: Reinforcement support, 22
: intermediate member, 27: flexible conductor, 28: airtight mechanism section, V: vacuum layer. A10- Figure 2 Figure 4-A'pn-
Claims (1)
られ、常温部材側に設けられた補強部材の先端部を低温
部材側に接触させて支持する極低温容器の補強支持装置
において、常温部材と低温部材との間に中間温度の中間
部材を設け、この中間部材に取付けられた案内部材と圧
縮スプリングとを介して補強支持体を中間部材に貫通さ
せ、常温部材に形成した気密機構部にねじ込まれた押し
ねじ棒を操作することにより補強支持体が前記案内部材
に案内されて前記常温部材と低温部材との間を動き得る
ようにするとともに、前記補強支持体と中間部材とを熱
伝導的にフレキシブル導体により連結したことを特徴と
する極低温容器の補強支持装置。1) A reinforcement support device for a cryogenic container in which a normal temperature member and a low temperature member are provided facing each other via a vacuum layer, and the tip of the reinforcing member provided on the room temperature member side is supported by contacting the low temperature member side, An airtight mechanism is formed in the normal temperature member by providing an intermediate member at an intermediate temperature between the normal temperature member and the low temperature member, and passing a reinforcing support body through the intermediate member via a guide member and a compression spring attached to the intermediate member. By operating a push screw rod screwed into the part, the reinforcing support body is guided by the guide member and can move between the normal temperature member and the low temperature member, and the reinforcing support body and the intermediate member are moved. A reinforcing and supporting device for a cryogenic container, characterized in that the device is thermally conductively connected by a flexible conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60108584A JPS61267379A (en) | 1985-05-21 | 1985-05-21 | Reinforcing support apparatus of cryogenic vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60108584A JPS61267379A (en) | 1985-05-21 | 1985-05-21 | Reinforcing support apparatus of cryogenic vessel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61267379A true JPS61267379A (en) | 1986-11-26 |
| JPH0516675B2 JPH0516675B2 (en) | 1993-03-05 |
Family
ID=14488512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60108584A Granted JPS61267379A (en) | 1985-05-21 | 1985-05-21 | Reinforcing support apparatus of cryogenic vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61267379A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806917A (en) * | 2018-06-29 | 2018-11-13 | 苏州超磁半导体科技有限公司 | A kind of superconducting magnet low temperature structure supporting rod |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049684A (en) * | 1983-08-29 | 1985-03-18 | Hitachi Ltd | Cryostat |
-
1985
- 1985-05-21 JP JP60108584A patent/JPS61267379A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6049684A (en) * | 1983-08-29 | 1985-03-18 | Hitachi Ltd | Cryostat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806917A (en) * | 2018-06-29 | 2018-11-13 | 苏州超磁半导体科技有限公司 | A kind of superconducting magnet low temperature structure supporting rod |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0516675B2 (en) | 1993-03-05 |
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