JPS601876A - Cryogenic vessel - Google Patents

Cryogenic vessel

Info

Publication number
JPS601876A
JPS601876A JP58109203A JP10920383A JPS601876A JP S601876 A JPS601876 A JP S601876A JP 58109203 A JP58109203 A JP 58109203A JP 10920383 A JP10920383 A JP 10920383A JP S601876 A JPS601876 A JP S601876A
Authority
JP
Japan
Prior art keywords
tank
inner tank
pipe
refrigerant
liquid helium
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
Application number
JP58109203A
Other languages
Japanese (ja)
Inventor
Ichiro Takano
一郎 高野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP58109203A priority Critical patent/JPS601876A/en
Publication of JPS601876A publication Critical patent/JPS601876A/en
Pending legal-status Critical Current

Links

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
    • 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
    • F17C2203/0391—Thermal insulations by vacuum
    • 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
    • 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

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

PURPOSE:To reduce coolant filling amount by forming a pipe of limited length opened with a vacuum unit between an inner tank and an outer tank at one end in the inner tank. CONSTITUTION:Coolant (liquid helium) 4 is filled in the inner tank 1 of a cryogenic vessel formed of the inner tank 1, an outer tank 2 and a vacuum unit 3 between both to cool an article to be cooled (superconductive magnet) 5. A pipe 9 opened at 10 at one end with vacuum unit 3 is provided in the tank 1, and filling amount of coolant 4 is reduced. Since the thickness of the pipe is extremely small and good, the filling amount of liquid helium can be reduced at the cooling time of 300K to 4.2K.

Description

【発明の詳細な説明】 ［発明の属する技術分野］ この発明は極低温容器に関する。[Detailed description of the invention] [Technical field to which the invention pertains] This invention relates to cryogenic containers.

［従来技術とその問題点］ 第１図と第２図に従来技術の実施例を示す。第１図にお
いて、内槽１と外槽２と両槽間の真空部３より構成され
る極低温容器の内槽１内に冷媒（液体ヘリウム）４を注
入し、被冷却物体（超電導マグネット）５を冷却してい
る。液体ヘリウム４の注入量を低減するために、ＦＲＰ
詰物６を設けている。このような詰物では、この詰物を
常温：３００Ｋから冷媒温度（液体ヘリウム温度４．２
Ｋ）まで冷却するために、液体ヘリウムの潜熱が必要で
このために詰め物を入れた効果が、冷媒の注入量を低減
することに直につながらなかった。[Prior art and its problems] An example of the prior art is shown in FIGS. 1 and 2. In Fig. 1, a refrigerant (liquid helium) 4 is injected into the inner tank 1 of the cryogenic container, which is composed of an inner tank 1, an outer tank 2, and a vacuum section 3 between the two tanks, and an object to be cooled (a superconducting magnet) is injected into the inner tank 1 of the cryogenic container. 5 is being cooled. In order to reduce the amount of liquid helium 4 injected, FRP
A filling 6 is provided. In this type of filling, the filling temperature ranges from room temperature: 300K to refrigerant temperature (liquid helium temperature: 4.2
The latent heat of liquid helium is required to cool the helium to K), and the effect of inserting the filler for this purpose did not directly lead to a reduction in the amount of coolant injected.

第２図は詰物の代シに、金属性の真空容器７を内槽内に
設けたものである。真空に引くための管８が當渦部掩で
引き出されている。この場合、詰め物よりは、３００Ｋ
から４．２Ｋまで冷却するに必要な冷媒量は低減できる
が少くとも１気圧の耐圧を有する容器が必要となシ、容
器の肉厚が大となりさら忙冷媒量を低減するには不向き
である、［発明の目的コ 本発明は極低温容器への冷媒注入端を低減する００勺で
なされた。In FIG. 2, a metallic vacuum container 7 is provided in the inner tank in place of the filling. A tube 8 for drawing a vacuum is drawn out at the vortex part. In this case, it costs 300K more than stuffing.
Although it is possible to reduce the amount of refrigerant required for cooling from 1 to 4.2 K, a container with a pressure resistance of at least 1 atm is required, and the wall thickness of the container is large, making it unsuitable for further reducing the amount of refrigerant used. OBJECTS OF THE INVENTION The present invention has been made to reduce the number of refrigerant injections into cryogenic vessels.

し発明の概要］ 本発明は有限長のパイプを内槽内に設けた極低温容器に
ある。[Summary of the Invention] The present invention is a cryogenic container having a finite length pipe provided in an inner tank.

［発明の効果］ 冷媒注入量が低減される。[Effect of the invention] Refrigerant injection amount is reduced.

［発明の実施例］ 第３図に本発明の実施例を示す。ｊ′ｎ１図の詰物第２
図の真空容器の代わりに本発明の場合は、パイプ９（第
３図では断面を示す）を内槽】内に設け、冷媒（液体ヘ
リウム）の注入量を低減している。パイプ９の片端は真
空部３に開口１０シている。[Embodiment of the Invention] FIG. 3 shows an embodiment of the invention. Filling No. 2 of j'n1 figure
In the case of the present invention, instead of the vacuum container shown in the figure, a pipe 9 (a cross section is shown in FIG. 3) is provided inside the inner tank to reduce the amount of refrigerant (liquid helium) to be injected. One end of the pipe 9 has an opening 10 in the vacuum section 3.

１気圧程度の耐圧のためには、パイプの肉厚は極めて小
さくて良いので３００に→４．２　Ｋの冷却時に液体ヘ
リウムの注入量が、第２図の実施例に較べても少なくて
済む。In order to withstand a pressure of about 1 atm, the wall thickness of the pipe needs to be extremely small, so when cooling from 300 to 4.2 K, the amount of liquid helium injected can be smaller than in the example shown in Figure 2. .

まだ１本発明によれば、第１図〜第３図では、その必要
がないので省略しであるが、液体ヘリウムの注入管、計
測素子線等、被冷却物体（超電導マグネット）５以外の
内槽内の構成要素間に生じる比較的小さな隙間（ここに
も冷媒が入る）を埋めることができるので、液体ヘリウ
ムの注入量を著しく低減することができる。According to the present invention, parts other than the object to be cooled (superconducting magnet) 5, such as a liquid helium injection pipe and a measuring element wire, are omitted in FIGS. 1 to 3 because they are not necessary. Since the relatively small gaps between the components in the tank (into which the refrigerant also enters) can be filled, the amount of liquid helium injected can be significantly reduced.

［発明の他の実施例］ （１）本発明は従来の実施例第１図第２図にも適用（２
）本発明は、真り２１部３内に輻射シールド板及び配管
、スーパーインシュレーション等の断熱構造を有する極
低温容器においても適用可能である。[Other embodiments of the invention] (1) The present invention is also applicable to the conventional embodiments Fig. 1 and Fig. 2 (2).
) The present invention is also applicable to a cryogenic container having a heat insulating structure such as a radiation shield plate, piping, super insulation, etc. inside the beam 21 part 3.

（３）本発明は冷媒が液体ヘリウム以外の極低温冷媒、
例えば液体窒素にあっても適用可能である。(3) In the present invention, the refrigerant is a cryogenic refrigerant other than liquid helium,
For example, it is also applicable to liquid nitrogen.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の実施例を示す概略断面図、第２図は従来
の実施例を示す概略断面図、第３図は本発明の実施例を
示す概略断面図である。 １・内槽（極低温冷媒の貯槽）、 ２・・・外槽（真空槽）、　３・・・真空部、４・・・
冷媒（液体ヘリウム）、 ５・・・披冷却物体（超電導マグネット）、６・詰物、
　７・・・真空容器、 ８・・・真空配管、　９・・・パイプ、１０・・・パイ
プ開口部。 第　１　図 第　３　図FIG. 1 is a schematic sectional view showing a conventional embodiment, FIG. 2 is a schematic sectional view showing a conventional embodiment, and FIG. 3 is a schematic sectional view showing an embodiment of the present invention. 1. Inner tank (storage tank for cryogenic refrigerant), 2... Outer tank (vacuum tank), 3... Vacuum section, 4...
Refrigerant (liquid helium), 5. Cooling object (superconducting magnet), 6. Filling,
7... Vacuum container, 8... Vacuum piping, 9... Pipe, 10... Pipe opening. Figure 1 Figure 3

Claims (1)

【特許請求の範囲】[Claims] 少くとも内槽（極低温冷媒の貯槽）と外槽（真空槽）よ
り構成され、かつ外槽から内借への熱伝導による熱侵入
を低減するために、内槽と外槽の間を真空にしたる極低
温容器において、専ら、冷媒の注入量を低減する目的を
もって、内槽内に有限長のパイプを設け、このパイプの
少くとも一端が内槽と外槽の真空部に開口したることを
特徴とする極低温容器。It consists of at least an inner tank (storage tank for cryogenic refrigerant) and an outer tank (vacuum tank), and a vacuum is installed between the inner tank and the outer tank to reduce heat intrusion due to heat conduction from the outer tank to the inner tank. In the cryogenic container used for the purpose of reducing the amount of refrigerant injected, a pipe of finite length is provided in the inner tank, and at least one end of this pipe opens into the vacuum part of the inner tank and the outer tank. A cryogenic container characterized by:
JP58109203A 1983-06-20 1983-06-20 Cryogenic vessel Pending JPS601876A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58109203A JPS601876A (en) 1983-06-20 1983-06-20 Cryogenic vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58109203A JPS601876A (en) 1983-06-20 1983-06-20 Cryogenic vessel

Publications (1)

Publication Number Publication Date
JPS601876A true JPS601876A (en) 1985-01-08

Family

ID=14504219

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58109203A Pending JPS601876A (en) 1983-06-20 1983-06-20 Cryogenic vessel

Country Status (1)

Country Link
JP (1) JPS601876A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05123162A (en) * 1991-11-04 1993-05-21 Mitsubishi Agricult Mach Co Ltd Method for selecting koji taking out operation in production of koji

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05123162A (en) * 1991-11-04 1993-05-21 Mitsubishi Agricult Mach Co Ltd Method for selecting koji taking out operation in production of koji

Similar Documents

Publication Publication Date Title
US3705498A (en) Method and apparatus for cooling a cryogenic storage container
Swenson et al. An efficient cryostat for producing temperatures between 4 and 80 K: The production of liquid hydrogen targets using liquid helium
US3377813A (en) Storage container
US5113165A (en) Superconductive magnet with thermal diode
EP1436555B1 (en) A pulse tube refrigerator sleeve
EP0188389A2 (en) Cryogenic vessel for a superconducting apparatus
US3302419A (en) Vacuum jacket siphon for cryogenic fluids
US5991647A (en) Thermally shielded superconductor current lead
CN110491618A (en) A kind of helium gas cooling magnetic resonance superconducting magnet
US4537033A (en) Cryogenic magnet systems
US3781733A (en) Low heat conductant temperature stabilized structural support
JPS601876A (en) Cryogenic vessel
US4926646A (en) Cryogenic precooler for superconductive magnets
WO2003036190A1 (en) A pulse tube refrigerator with an insulating sleeve
US4680935A (en) Cryogenic container
US3436926A (en) Refrigerating structure for cryostats
CN210156195U (en) Helium cooling magnetic resonance superconducting magnet
JPH0317056B2 (en)
KR0146396B1 (en) A cryostat not having liquid nitrogen tank and the structure thereof
JPH01291410A (en) Cryostat
JPS61116250A (en) Superconducting device and its cooling method
JPS63299181A (en) Superconducting apparatus
JPH07190297A (en) Double shell storage thermal insulation device
JPS61159066A (en) cryostat
JP3316986B2 (en) Current leads for superconducting devices