JPH0348100A - Low temperature container - Google Patents
Low temperature containerInfo
- Publication number
- JPH0348100A JPH0348100A JP1179013A JP17901389A JPH0348100A JP H0348100 A JPH0348100 A JP H0348100A JP 1179013 A JP1179013 A JP 1179013A JP 17901389 A JP17901389 A JP 17901389A JP H0348100 A JPH0348100 A JP H0348100A
- Authority
- JP
- Japan
- Prior art keywords
- container
- low temperature
- thermal
- support
- low
- 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
- 239000012530 fluid Substances 0.000 claims abstract description 25
- 239000000843 powder Substances 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 20
- 229910052751 metal Inorganic materials 0.000 claims description 20
- 239000011347 resin Substances 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 abstract description 4
- 239000001307 helium Substances 0.000 abstract description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 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
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
- F17C13/086—Mounting arrangements for vessels for Dewar vessels or 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
- F17C2201/00—Vessel construction, in particular geometry, arrangement or size
- F17C2201/01—Shape
- F17C2201/0147—Shape complex
- F17C2201/0157—Polygonal
-
- 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
- F17C2203/0602—Wall structures; Special features thereof
- F17C2203/0612—Wall structures
- F17C2203/0626—Multiple walls
- F17C2203/0629—Two walls
-
- 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
- F17C2203/0634—Materials for walls or layers thereof
- F17C2203/0636—Metals
-
- 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
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
- F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は液体ヘリウムのような極低温流体を貯蔵するた
めの低温容器に関し、特に繊維強化樹脂（以下ＦＲＰと
言う）よりなる支持体を備えた低温容器に関する。Detailed Description of the Invention (Industrial Application Field) The present invention relates to a low-temperature container for storing cryogenic fluids such as liquid helium, and particularly to a low-temperature container equipped with a support made of fiber-reinforced resin (hereinafter referred to as FRP). related to cryogenic containers.
（従来の技術）
従来液体ヘリウムのような極低温流体を貯蔵するための
低温容器は真空容器の中心部に低温流体を貯蔵する低温
容器がＦＲＰよりなる支持体により懸架され、その周囲
は複数層の熱シールド板により囲まれ低温容器内に輻射
熱が侵入するのを防止している。これらの複数層の熱シ
ールド板は通常銅板により構成され、例えば低温容器の
直ぐ外側の熱シールド板はほぼ２０に１さらにその外側
の熱シールド板はほぼ８０にの低温度に維持される。こ
れらの熱シールド板はまた前記支持体にサーマルアンカ
により熱伝導可能に接続されている。(Prior Art) Conventionally, in a low-temperature container for storing a cryogenic fluid such as liquid helium, a low-temperature container for storing a low-temperature fluid is suspended in the center of the vacuum container by a support made of FRP, and the surrounding area is surrounded by multiple layers. It is surrounded by a heat shield plate to prevent radiant heat from entering the low temperature container. These multi-layer heat shield plates are usually constructed of copper plates, and for example, the heat shield plate immediately outside the cryocontainer is maintained at a low temperature of about 1 in 20, and the heat shield plate outside that is maintained at a low temperature of about 80 in. These heat shield plates are also thermally conductively connected to the support by thermal anchors.
（発明が解決しようとする課題）
上記従来の低温容器においては、ＦＲＰ支持体を介して
真空容器外部の高温が低温の流体容器に侵入しないよう
にサーマルアンカによりＦＲＰ支持体を真空容器壁部か
ら低温の流体容器に至る途中において所定の低温温度に
維持されている複数層の熱シールド板に接続している。(Problems to be Solved by the Invention) In the above-mentioned conventional low-temperature container, a thermal anchor is used to separate the FRP support from the wall of the vacuum container so that high temperature outside the vacuum container does not intrude into the low-temperature fluid container via the FRP support. On the way to the low-temperature fluid container, it is connected to a plurality of layers of heat shield plates that are maintained at a predetermined low temperature.
しかしサーマルアンカとＦＲＰ支持体との接続部におけ
る熱伝導が悪＜ ＦＲＰ支持体を介する熱の侵入を十分
防止することが出来ず流体容器内の温度上昇を招来する
欠点があった。すなわち従来のサーマルアンカは銅板等
の熱伝導度の良い金属でＦＲＰ支持体をバンド状に締め
付ける方法が取られているが、サーマルアンカとＦＲＰ
支持体との接触が十分でなかった。However, there was a drawback that heat conduction at the connection between the thermal anchor and the FRP support was poor, and the intrusion of heat through the FRP support could not be sufficiently prevented, resulting in an increase in temperature within the fluid container. In other words, conventional thermal anchors use a method of tightening the FRP support in a band shape using a metal with good thermal conductivity such as a copper plate, but thermal anchors and FRP
Contact with the support was insufficient.
本発明の課題は、上記の欠点を除去した低温容器を提供
することにある。The object of the present invention is to provide a cryogenic container which eliminates the above-mentioned drawbacks.
（課題を解決するための手段）
本発明によれば、真空容器と、この真空容器内に繊維強
化樹脂よりなる支持体により懸架された低温流体を貯蔵
する流体容器と、この流体容器の周囲を囲うように設け
られ所定の低温温度に維持された熱シールド板と、この
熱シールド板および前記支持体を熱伝導可能に接続する
サーマルアンカとを備えた低温容器において、前記支持
体は部分的に金属粉末をまぶしたプリプレグシートを積
層成型してなる、帯状の金属層を有する支持柱により構
成され、前記サーマルアンカは前記帯状の金属層を金属
板で挟持してなることを特徴とする低温容器が得られる
。(Means for Solving the Problems) According to the present invention, there is provided a vacuum container, a fluid container for storing a low-temperature fluid suspended in the vacuum container by a support made of fiber-reinforced resin, and a fluid container surrounding the fluid container. In a cryogenic container including a heat shield plate that is provided to surround the support and is maintained at a predetermined low temperature, and a thermal anchor that connects the heat shield plate and the support in a thermally conductive manner, the support is partially A low-temperature container comprising a support column having a band-shaped metal layer formed by laminating and molding prepreg sheets sprinkled with metal powder, and wherein the thermal anchor is formed by sandwiching the band-shaped metal layer between metal plates. is obtained.
（実施例）
第１図および第２図により本発明の低温容器の一実施例
を説明する。(Example) An example of the low temperature container of the present invention will be described with reference to FIGS. 1 and 2.
第１図は本発明の実施例を示す低温容器の側面図である
が図示するように流体容器１１内には液体ヘリウム１２
が貯蔵されている。この流体容器１１の周囲には第１の
熱シールド板１３、そしてさらにその外側には第２の熱
シールド板１４が前記第１の熱シールド板１３を囲うよ
うに配置されている。前記第１の熱シールド板１３およ
び第２の熱シールド板１４は銅材料により構成されそれ
ぞれほぼ２０に、８０にの低温に維持されている。第２
の熱シールド板１４の外側には前記流体容器 １１、第
１、第２の熱シールド板１３および１４をその内部に収
納する真空容器１５が設けられている。前記流体容器１
１、第１、第２の熱シールド板１３および１４は例えば
ＦＲＰにより構成された支持体１６により前記真空容器
１５に懸架固定される。支持体１６と前記第１および第
２の熱シールド板１３および１４はそれぞれサーマルア
ンカ１７により接続されている。サーマルアンカ１７は
たとえば平網銅線のような可撓性を有し熱伝導の良い金
属で構成される。なおＦＲＰ支持体１６は第１図に示す
ように第１および第２の熱シールド板１３および１４を
貫通して設けられ、貫通部は接着剤１８により固定され
る。前記低温容器１１と第１の熱シールド板１２の間、
第１および第２の熱シールド板１３．１４の間、そして
第２の熱シールド板１４および真空容器１５の間には真
空層１９が形成されている。FIG. 1 is a side view of a low-temperature container showing an embodiment of the present invention.
is stored. A first heat shield plate 13 is disposed around the fluid container 11, and a second heat shield plate 14 is disposed outside of the first heat shield plate 13 so as to surround the first heat shield plate 13. The first heat shield plate 13 and the second heat shield plate 14 are made of copper material and are maintained at a low temperature of approximately 20° C. and 80° C., respectively. Second
A vacuum container 15 is provided outside the heat shield plate 14 and houses the fluid container 11 and the first and second heat shield plates 13 and 14 therein. The fluid container 1
The first, second, and second heat shield plates 13 and 14 are suspended and fixed to the vacuum container 15 by a support 16 made of, for example, FRP. The support body 16 and the first and second heat shield plates 13 and 14 are connected by thermal anchors 17, respectively. The thermal anchor 17 is made of a flexible metal with good thermal conductivity, such as a plain copper wire. Note that the FRP support 16 is provided to penetrate the first and second heat shield plates 13 and 14 as shown in FIG. 1, and the penetrating portion is fixed with an adhesive 18. Between the low temperature container 11 and the first heat shield plate 12,
A vacuum layer 19 is formed between the first and second heat shield plates 13 , 14 and between the second heat shield plate 14 and the vacuum vessel 15 .
第２図はＦＲＰ支持体１６の構成を示す要部拡大図、ま
た第３図はＦＲＰ支持体１６とサーマルアンカ１７との
接続部の構成を示す要部拡大図である。ＦＲＰ支持体１
６はＦＲＰからなる帯状のプリプレグシートを多層に（
第２図（Ａ）では２枚のシート２１．２２のみ示されて
いる）積層して第２図（Ｂ）に示されるような支持柱２
３を構成している。ここでプリプレグシートとは、カー
ボンの織物や一方向に並べたカーボン繊維シートに予め
樹脂をしみ込ませ、べとつかない程度に半乾燥にした中
間製品を言う。このプリプレグシートを製造するに際し
て本発明では第２図（Ａ）に示すようにプリプレグシー
トの幅方向に部分的に金属粉２４をまぶし、多層に積層
したときプリプレグシートの幅方向に帯状の金属層２４
を形成する。複数のプリプレグシート２１．２２、・・
・は積層されオーブン内で焼成され断面が矩形の支持柱
２３に成型される。このようにして成型された支持柱２
３の帯状の金属層２４の回りに第３図に示すようにさら
に金属板２５を巻き付ける。そしてこのような支持柱２
３を必要に応じて複数本（第３図では３本）合体して用
いる。この際各支持柱２３の帯状の金属層２４はこの回
りに巻回された金属板２５が相互に接触する。このよう
に一体止された複数の支持柱の金属板２５に前記サーマ
ルアンカ１７の一端が接続される。FIG. 2 is an enlarged view of the main part showing the structure of the FRP support 16, and FIG. 3 is an enlarged view of the main part showing the structure of the connection part between the FRP support 16 and the thermal anchor 17. FRP support 1
6 is a multilayer strip-shaped prepreg sheet made of FRP (
Only two sheets 21, 22 are shown in FIG. 2(A)) are stacked to form a support column 2 as shown in FIG. 2(B).
3. Here, the prepreg sheet refers to an intermediate product made by pre-impregnating a carbon fabric or carbon fiber sheet arranged in one direction with resin and semi-drying it to the extent that it does not become sticky. In manufacturing this prepreg sheet, in the present invention, metal powder 24 is partially sprinkled in the width direction of the prepreg sheet as shown in FIG. 24
form. Multiple prepreg sheets 21.22,...
* is laminated and fired in an oven to form a support column 23 having a rectangular cross section. Support column 2 molded in this way
A metal plate 25 is further wrapped around the band-shaped metal layer 24 as shown in FIG. And support pillar 2 like this
A plurality of pieces (three pieces in FIG. 3) of 3 pieces (three pieces in FIG. 3) are combined and used as necessary. At this time, the metal plates 25 wound around the band-shaped metal layer 24 of each support column 23 come into contact with each other. One end of the thermal anchor 17 is connected to the metal plates 25 of the plurality of support columns integrally fixed in this manner.
このように構成された低温容器によれば、ＦＲＰ支持体
１６は帯状の金属層２４およびこの回りに巻回された金
属板２５を介してサーマルアンカ１７の一端が接触され
るため、ＦＲＰ支持体とサーマルアンカ】７との熱接触
抵抗が大幅に減少する。そしてＦＲＰ支持体と第１また
は第２の熱シールド板１３または１４との熱伝導が良好
となるため、流体容器内への熱侵入を大幅に減少できる
。According to the low-temperature container configured in this way, one end of the thermal anchor 17 is in contact with the FRP support 16 via the band-shaped metal layer 24 and the metal plate 25 wound around it, so that the FRP support 16 Thermal contact resistance between the thermal anchor and the thermal anchor]7 is significantly reduced. Since heat conduction between the FRP support and the first or second heat shield plate 13 or 14 is improved, heat intrusion into the fluid container can be significantly reduced.
また、サーマルアンカは平網銅線で構成されているため
ＦＲＰ支持体の熱収縮に対し自由に移動でき、常に安定
な熱伝導を維持できる。Furthermore, since the thermal anchor is made of a flat mesh copper wire, it can move freely against thermal contraction of the FRP support, and can always maintain stable heat conduction.
（発明の効果）
以上説明した本発明の低温容器によれば、ＦＲＰ支持体
とサーマルアンカとの熱接触抵抗が減少し、熱伝導が良
好となるため、流体容器内への熱侵入を大幅に減少でき
る。従って、中心部の流体容器内に熱侵入がなく低温流
体の蒸発損を生ずる虞れが無い。(Effects of the Invention) According to the low-temperature container of the present invention as described above, the thermal contact resistance between the FRP support and the thermal anchor is reduced and heat conduction is improved, so that heat intrusion into the fluid container is significantly reduced. Can be reduced. Therefore, there is no heat intrusion into the central fluid container, and there is no risk of evaporation loss of the low-temperature fluid.
以下余日Remaining days below
第１図は本発明の実施例を示すＦＲＰ支持体をが１えた
低温容器の側面図、第２図は第１図のＦＲＰ支持体の構
成を示す要部斜視図、第３図は同じく第１図のＦＲＰ支
持体のサーマルアンカとの接続部の構成を示す側断面図
である。
１１・・・流体容器、１２・・・液体ヘリウム、 １
３・第１の熱シールド板、 １４・・・第２の熱シー
ルド板、１５・・・真空容器、１６・・・ＦＲＰ支持体
、］７・・・サーマルアンカ、１８・・・真空層、 ２
１．２２・・プリプレグシート、２３・・・支持柱、２
４・・・金属層、２５・・・金属板。FIG. 1 is a side view of a low-temperature container with an FRP support that shows an embodiment of the present invention, FIG. 2 is a perspective view of the main part showing the structure of the FRP support in FIG. 1, and FIG. FIG. 2 is a side cross-sectional view showing the structure of the connection portion of the FRP support shown in FIG. 1 with the thermal anchor. 11...Fluid container, 12...Liquid helium, 1
3. First heat shield plate, 14... Second heat shield plate, 15... Vacuum container, 16... FRP support, ] 7... Thermal anchor, 18... Vacuum layer, 2
1.22... prepreg sheet, 23... support column, 2
4...Metal layer, 25...Metal plate.
Claims (1)
る支持体により懸架された低温流体を貯蔵する流体容器
と、この流体容器の周囲を囲うように設けられ所定の低
温温度に維持された熱シールド板と、この熱シールド板
および前記支持体を熱伝導可能に接続するサーマルアン
カとを備えた低温容器において、前記支持体は部分的に
金属粉末をまぶしたプリプレグシートを積層成型してな
る、帯状の金属層を有する支持柱により構成され、前記
サーマルアンカは前記帯状の金属層を金属板で挟持して
なることを特徴とする低温容器。1. A vacuum container, a fluid container for storing a low-temperature fluid suspended within the vacuum container by a support made of fiber-reinforced resin, and a fluid container provided to surround the fluid container and maintained at a predetermined low temperature. A low-temperature container equipped with a heat shield plate and a thermal anchor that connects the heat shield plate and the support body in a thermally conductive manner, wherein the support body is formed by laminating and molding prepreg sheets partially sprinkled with metal powder. A low-temperature container comprising a support column having a band-shaped metal layer, and wherein the thermal anchor is formed by sandwiching the band-shaped metal layer between metal plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179013A JPH0348100A (en) | 1989-07-13 | 1989-07-13 | Low temperature container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1179013A JPH0348100A (en) | 1989-07-13 | 1989-07-13 | Low temperature container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348100A true JPH0348100A (en) | 1991-03-01 |
Family
ID=16058593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1179013A Pending JPH0348100A (en) | 1989-07-13 | 1989-07-13 | Low temperature container |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7559642B2 (en) | 2004-12-08 | 2009-07-14 | Canon Kabushiki Kaisha | Sheet material conveying apparatus and image forming apparatus |
| EP2166295A3 (en) * | 2008-09-22 | 2011-11-30 | Oxford Instruments Nanotechnology Tools Limited | Cryogenic cooling apparatus and method using a sleeve with heat transfer member |
-
1989
- 1989-07-13 JP JP1179013A patent/JPH0348100A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7559642B2 (en) | 2004-12-08 | 2009-07-14 | Canon Kabushiki Kaisha | Sheet material conveying apparatus and image forming apparatus |
| EP2166295A3 (en) * | 2008-09-22 | 2011-11-30 | Oxford Instruments Nanotechnology Tools Limited | Cryogenic cooling apparatus and method using a sleeve with heat transfer member |
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