JPS6283597A - Adiabatic supporting device for very low temperature vessel - Google Patents
Adiabatic supporting device for very low temperature vesselInfo
- Publication number
- JPS6283597A JPS6283597A JP60222867A JP22286785A JPS6283597A JP S6283597 A JPS6283597 A JP S6283597A JP 60222867 A JP60222867 A JP 60222867A JP 22286785 A JP22286785 A JP 22286785A JP S6283597 A JPS6283597 A JP S6283597A
- Authority
- JP
- Japan
- Prior art keywords
- spherical
- container
- heat insulating
- low
- cryogenic
- 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
- 239000002783 friction material Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 239000004020 conductor Substances 0.000 claims abstract 3
- 239000000463 material Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 2
- 239000011810 insulating material Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract description 5
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000003292 diminished effect Effects 0.000 abstract 1
- 239000001307 helium Substances 0.000 description 6
- 229910052734 helium Inorganic materials 0.000 description 6
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011152 fibreglass Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012809 cooling fluid Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000003507 refrigerant Substances 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
- F17C13/087—Mounting arrangements for vessels for Dewar vessels or cryostats used for superconducting phenomena
-
- 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
- F17C2203/03—Thermal insulations
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の技術分野〕
本発明は液体ヘリウムや液体窒素等の極低温流体を内蔵
する極低温容器を、外周容器内に断熱支持する装置に関
する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an apparatus for adiabaticly supporting a cryogenic container containing a cryogenic fluid such as liquid helium or liquid nitrogen within an outer circumferential container.
極低温容器の断熱支持装置は、支持条件により種々使用
されているが、超電導機器においては。Adiabatic support devices for cryogenic containers are used in various ways depending on the support conditions, but in superconducting equipment.
冷却流体として液体ヘリウムの使用が不可欠で、ヘリウ
ムの資源確保、価格の点で、その使用量が問題視されて
いる。このため液体ヘリウムの侵入熱量の低減、冷却状
態での輸送、耐振強度等、断熱支持装置に果せられた問
題が多い。The use of liquid helium as a cooling fluid is essential, and the amount of helium used is viewed as a problem in terms of securing helium resources and price. For this reason, there are many problems that the heat insulating support device has not been able to solve, such as reducing the amount of heat that enters liquid helium, transporting it in a cooled state, and vibration resistance.
本発明は、断熱性能に優れ、機械的強度の高い極低温容
器の断熱支持装置を提供することを目的・とする。An object of the present invention is to provide a heat insulating support device for a cryogenic container that has excellent heat insulating performance and high mechanical strength.
本発明においては、極低温流体を内蔵する極低温容器と
、この極低温容器を真空断熱して包囲する外周容器との
間を係合して断熱支持する断熱支持装置において、断熱
材として繊維強化プラスチックのような低熱伝導材料の
支持棒を使用し、その両端にねじを有するねじ金具を固
着し、ネじの周囲に球面座を遊嵌し、ねじに球面ナツト
係合し、球面座と球面ナツトの対向面のうち、少なくと
も何れか一方に低摩擦材をコーティングしておき。In the present invention, in a heat insulating support device that engages and insulates and supports a cryogenic container containing a cryogenic fluid and an outer circumferential container surrounding the cryogenic container with vacuum insulation, fiber reinforced as a heat insulating material is provided. A support rod made of a low thermal conductivity material such as plastic is used, a screw fitting with threads is fixed on both ends of the support rod, a spherical seat is loosely fitted around the screw, a spherical nut is engaged with the screw, and the spherical seat and spherical surface are connected to each other. At least one of the opposing surfaces of the nut is coated with a low-friction material.
球面ナツトを締め付けることにより、極低温容器を外周
容器に支持体を介して支持させるものであり、球面部の
すベリを良好にし、曲げ応力の発生をなくし、断熱支持
体の横断面積を最小にでき、このため、極低温容器への
熱侵入量を低減するものである。By tightening the spherical nut, the cryogenic container is supported by the outer container via the support, which improves the smoothness of the spherical part, eliminates the occurrence of bending stress, and minimizes the cross-sectional area of the heat-insulating support. Therefore, the amount of heat intrusion into the cryogenic container is reduced.
以Ｆ、本発明の一実施例について、図面を参照して説明
する。図面において、■は例えば液体ヘリウムや液体窒
素等の冷媒を内部に貯液又は流通する極低温容器の一部
分を示し、■は、極低温容器Ｏ）を真空断熱して包囲し
、Ｆｉ低温容器■の温度より高い温度に保持される外周
容器の一部分である。（３） ４ま低熱伝導材を有する
所内支持体であって、ガラス繊維強化プラスチックから
なる支持体（３ａ）の両端に摩擦接触、接着、テーパー
状組合せ等の機械的強度を有する手段で結合され、先端
にねじを有するねじ金具（３ｂ）を固着する。ねじ金具
（３ｂ）のねじ基部付近には球面座（イ）を遊嵌し、ね
じに球面ナツト０を係合する。球面座（イ）と球面ナツ
ト″■の対向面には低摩擦材０例えば二流化モリブデン
焼付コーティングあるいはテフロンコーティング等の真
空中および極低温中においても低摩擦係数を有する材料
をコーティングしておく。そして球面ナンドを締め付け
ることにより、極低温容器（１）の係合部（１ａ）を外
周容器■の係合部（２ａ）に断熱支持体（３）で支持さ
せる。このような断熱支持装置を複数個用いて極低温容
器Ｏ）を外周容器■内に支持する。Hereinafter, one embodiment of the present invention will be described with reference to the drawings. In the drawings, ■ indicates a part of the cryogenic container in which a refrigerant, such as liquid helium or liquid nitrogen, is stored or circulated; The portion of the outer vessel that is held at a temperature higher than that of the outer vessel. (3) An in-house support having a low thermal conductivity material, which is connected to both ends of the support (3a) made of glass fiber reinforced plastic by a means having mechanical strength such as frictional contact, adhesive, tapered combination, etc. , fix a screw fitting (3b) having a thread at the tip. A spherical seat (a) is loosely fitted near the screw base of the screw fitting (3b), and a spherical nut 0 is engaged with the screw. The facing surfaces of the spherical seat (A) and the spherical nut ``■'' are coated with a low friction material, such as a baked molybdenum disulfide coating or a Teflon coating, which has a low coefficient of friction even in vacuum and at extremely low temperatures. Then, by tightening the spherical NAND, the engaging part (1a) of the cryogenic container (1) is supported by the engaging part (2a) of the outer peripheral container (2) by the heat insulating support (3). A plurality of cryogenic containers O) are supported within the outer peripheral container (■).
次に作用について説明する。Next, the effect will be explained.
この断熱支持装置には極低温容器０）の重量の他、極低
温容器が冷却した時に生じる熱収縮変位、輸送や地震に
よる振動荷重、超電導機器の場合には電磁力等の種々の
荷重が加わっている。前述の熱収縮変位又は各種荷重に
よる変位が図面の矢印■の方向に作用した場合、球面座
に）と球面ナツト０の球面部が、低摩擦材０を介して自
動的にすべり、断熱支持体■の支持方向が変化する。従
って、断熱支持体（３）には単純引張荷重のみが作用す
ることになる。すなわち、断熱支持体■には曲げ応力が
発生しないから、単純引張荷重に対する強度だけを考慮
すれば良く、断熱支持体の横断面積を小さく設定できる
。このことは、極低温容器ヘリ人する伝導熱量は上記横
断面積に比例するから、侵入熱量を少なくすることが出
来るという効果につながる。又、極低温容器（１）又は
外周容器■と球面座０）との接触面の断熱支持体（３）
の軸芯との直角精度が悪くても、球面で自動的に調整さ
れるので、極低温容器（１）および外周容器■の製作性
が簡単で、組立も簡ｍになり、生産性が向上する。In addition to the weight of the cryogenic container0), this heat insulating support device is subject to various loads such as thermal contraction displacement caused when the cryogenic container cools, vibration loads due to transportation and earthquakes, and electromagnetic force in the case of superconducting equipment. ing. When the aforementioned heat shrinkage displacement or displacement due to various loads acts in the direction of the arrow (■) in the drawing, the spherical seat) and the spherical part of the spherical nut 0 automatically slide through the low-friction material 0, and the heat insulating support ■The support direction changes. Therefore, only a simple tensile load acts on the heat insulating support (3). That is, since no bending stress is generated in the heat insulating support (2), only the strength against a simple tensile load needs to be considered, and the cross-sectional area of the heat insulating support can be set small. This leads to the effect that the amount of heat intrusion can be reduced because the amount of heat conducted by the cryogenic container is proportional to the cross-sectional area. In addition, a heat insulating support (3) on the contact surface between the cryogenic container (1) or the outer peripheral container (■) and the spherical seat (0)
Even if the perpendicularity with the axis of the container is poor, it is automatically adjusted by the spherical surface, making it easy to manufacture and assemble the cryogenic container (1) and the outer container, which improves productivity. do.
尚、支持体（３ａ）の材料はガラス繊維強化プラスチッ
クでなくて、他のｕＪｔ維強化プラスツタを使用しても
よく、又、低摩擦材（０は球面座（イ）と球面ナツト■
の何れか一方だけにコーティングしてもよいし、球面座
Ω）と球面ナンド■の凹凸は６ｆ記実施例の逆にしても
よい。In addition, the material of the support body (3a) is not glass fiber reinforced plastic, but other uJt fiber reinforced plastic vines may be used, or a low friction material (0 is the spherical seat (A) and the spherical nut ■
It is also possible to coat only one of them, or the unevenness of the spherical seat Ω) and the spherical NAND ■ may be reversed to that in the embodiment described in 6f.
以上説明したように、本発明によれば、断熱支持体には
曲げ応力が発生せず、単純引張荷重のみが作用するので
、断熱支持体の横断面積を小さくでき、極低温容器への
侵入熱量の低減ができる。As explained above, according to the present invention, no bending stress is generated on the heat insulating support, and only a simple tensile load acts on the heat insulating support, so the cross-sectional area of the heat insulating support can be reduced, and the amount of heat penetrating into the cryogenic container can be reduced. can be reduced.
又、断熱支持体は曲げ強さの比較的小さい低熱伝導率の
材料の採用を可能にする上からも 低熱侵入の極部装置
に適用できる。一方２球面座および球面ナツトを採用し
たので、取付面の平行度、面角度を精度良く加工する必
要がなく、生産性を向上し、信頼性を増した極低温装置
の提供が可能である。In addition, the heat insulating support can be applied to an extreme device with low heat penetration because it allows the use of a material with relatively low bending strength and low thermal conductivity. On the other hand, since a two-spherical seat and a spherical nut are used, there is no need to precisely process the parallelism and surface angle of the mounting surfaces, and it is possible to improve productivity and provide a cryogenic device with increased reliability.
図面は本発明の極低温容器の断熱支持装置の一実施例を
示す縦断面図である。The drawing is a longitudinal cross-sectional view showing an embodiment of a heat insulating support device for a cryogenic container according to the present invention.
Claims (1)
真空断熱して包囲する外周容器との間を係合して断熱支
持する断熱支持装置において、断熱材として繊維強化プ
ラスチックのような低熱伝導材料の支持棒を使用し、そ
の両端にねじを有するねじ金具を固着し、ねじの周囲に
球面座を遊嵌し、ネじに球面ナット係合し、球面座と球
面ナットの対向面のうち、少なくとも何れか一方に低摩
擦材をコーティングしておき、球面ナットを締め付ける
ことにより、極低温容器を外周容器に支持棒を介して支
持させたことを特徴とする極低温容器の断熱支持装置。In a heat insulating support device that engages and provides heat insulation support between a cryogenic container that contains a cryogenic fluid and an outer peripheral container surrounding the cryogenic container with vacuum insulation, a low-temperature material such as fiber-reinforced plastic is used as the heat insulating material. A support rod made of conductive material is used, a screw fitting with threads is fixed on both ends of the rod, a spherical seat is loosely fitted around the screw, a spherical nut is engaged with the screw, and the opposing surfaces of the spherical seat and the spherical nut are A heat insulating support device for a cryogenic container, characterized in that at least one of them is coated with a low-friction material and the cryogenic container is supported by the outer peripheral container via a support rod by tightening a spherical nut. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60222867A JPS6283597A (en) | 1985-10-08 | 1985-10-08 | Adiabatic supporting device for very low temperature vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60222867A JPS6283597A (en) | 1985-10-08 | 1985-10-08 | Adiabatic supporting device for very low temperature vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6283597A true JPS6283597A (en) | 1987-04-17 |
Family
ID=16789130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60222867A Pending JPS6283597A (en) | 1985-10-08 | 1985-10-08 | Adiabatic supporting device for very low temperature vessel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6283597A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5140823A (en) * | 1989-05-12 | 1992-08-25 | Spectrospin Ag | Cryostat |
-
1985
- 1985-10-08 JP JP60222867A patent/JPS6283597A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5140823A (en) * | 1989-05-12 | 1992-08-25 | Spectrospin Ag | Cryostat |
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