GB1433727A - Method for reducing fluid losses from a cryostat - Google Patents

Method for reducing fluid losses from a cryostat

Info

Publication number
GB1433727A
GB1433727A GB1190774A GB1190774A GB1433727A GB 1433727 A GB1433727 A GB 1433727A GB 1190774 A GB1190774 A GB 1190774A GB 1190774 A GB1190774 A GB 1190774A GB 1433727 A GB1433727 A GB 1433727A
Authority
GB
United Kingdom
Prior art keywords
helium
heat exchanger
cryostat
circuit
expansion unit
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.)
Expired
Application number
GB1190774A
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of GB1433727A publication Critical patent/GB1433727A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/02—Gas cycle refrigeration machines using the Joule-Thompson effect
    • F25B2309/022—Gas cycle refrigeration machines using the Joule-Thompson effect characterised by the expansion element

Abstract

1433727 Refrigerating; Liquefying gases COMMISSARIAT A L'ENERGIE ATOMIQUE 18 March 1974 [27 March 1973] 11907/74 Headings F4H and F4P Fluid losses from a Joule-Thomson cryostat 2, are reduced by maintaining helium 4 in its liquid phase and cooling it by a refrigeration circuit 8 supplied with helium under pressure from a source 10 and at a temperature above the inversion temperature to the Joule-Thompson expansion unit 18 via a heat exchanger 12 which uutilises both low pressure gaseous helium which has not liquified after passage through the unit and vaporized liquid 4 in a circuit 16. The heat exchanger and expansion unit are sufficiently small to permit their introduction through the neck of the cryostat which is sealed by a plug 20. In a further embodiment, Fig. 2, low pressure circuit is connected to a pump-compressor assembly for recirculation of the gaseous helium from the expansion unit which is vaporized in a heat exchanger largely submerged in the liquid helium of the cryostat and a condensation heat exchanger is formed by a portion of the return line of the system. The vaporized liquid is discharged through a separate circuit which also passes through the heat exchanger 12. Specific pressures of the helium at different points in the apparatus are given.
GB1190774A 1973-03-27 1974-03-18 Method for reducing fluid losses from a cryostat Expired GB1433727A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7310885A FR2288956A1 (en) 1973-03-27 1973-03-27 PROCESS FOR REDUCING THE CONSUMPTION OF A CRYOSTAT AND CORRESPONDING DEVICE

Publications (1)

Publication Number Publication Date
GB1433727A true GB1433727A (en) 1976-04-28

Family

ID=9116898

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1190774A Expired GB1433727A (en) 1973-03-27 1974-03-18 Method for reducing fluid losses from a cryostat

Country Status (8)

Country Link
US (1) US3892106A (en)
JP (1) JPS49128342A (en)
BE (1) BE811978A (en)
DE (1) DE2412905C2 (en)
FR (1) FR2288956A1 (en)
GB (1) GB1433727A (en)
IT (1) IT1011633B (en)
NL (1) NL7404050A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197711A (en) * 1986-11-18 1988-05-25 Toshiba Kk Helium cooling apparatus

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8400990A (en) * 1984-03-29 1985-10-16 Philips Nv METHOD FOR LIQUEIFICATION OF A GAS AND LIQUEIFICATION PLANT FOR CARRYING OUT THE METHOD
DE3435229A1 (en) * 1984-09-26 1986-04-03 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe CRYSTATE FOR OPERATING A (ARROW UP) 3 (ARROW UP) HE (ARROW UP) 4 (ARROW UP) HE MIXING UNIT
US4920753A (en) * 1987-08-04 1990-05-01 Canon Kabushiki Kaisha Method of storing volatile substances, container for storing said substances, and flow-control method for surface flow of superfluid helium
JP3446883B2 (en) * 1998-12-25 2003-09-16 科学技術振興事業団 Liquid helium recondensing device and transfer line used for the device
US20070209371A1 (en) * 2006-03-13 2007-09-13 Raytheon Company MIXED GAS REFRIGERANT SYSTEM FOR SENSOR COOLING BELOW 80ºK
WO2011039660A2 (en) * 2009-09-29 2011-04-07 Koninklijke Philips Electronics N.V. System and method for liquefying a fluid and storing the liquefied fluid
ES2510290B2 (en) * 2013-03-20 2015-04-30 Emilio PALOMO PINTO Autonomous, portable and self-cooling refrigeration system, based on the use of a sealed tank, containing a liquefied gas under pressure, used as a vaporizer, as a consequence of the controlled evaporation of said LPG

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE345052C (en) * 1916-12-01 1921-12-05 Lilienfeld Dr Hydrogen liquefier
US2895303A (en) * 1956-05-17 1959-07-21 Little Inc A Purification of low-boiling gases
GB861111A (en) * 1958-12-01 1961-02-15 Hughes Aircraft Co Gas liquefaction apparatus
GB863961A (en) * 1959-01-23 1961-03-29 Hymatic Eng Co Ltd Improvements relating to gas liquefiers
FR1439668A (en) * 1965-07-09 1966-05-20 Hughes Aircraft Co Closed circuit cryostat
US3422632A (en) * 1966-06-03 1969-01-21 Air Prod & Chem Cryogenic refrigeration system
US3415077A (en) * 1967-01-31 1968-12-10 500 Inc Method and apparatus for continuously supplying refrigeration below 4.2deg k.
US3704601A (en) * 1969-03-25 1972-12-05 Hymatic Eng Co Ltd Cryogenic cooling apparatus
BE758030A (en) * 1969-10-28 1971-04-26 Philips Nv INSTALLATION TO PRODUCE COLD AT TEMPERATURES BELOW THOSE OF THE LAMBDA POINT OF HELIUM
DE2009401A1 (en) * 1970-02-27 1971-09-09 Linde Ag, 6200 Wiesbaden Process for liquefying low-boiling gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2197711A (en) * 1986-11-18 1988-05-25 Toshiba Kk Helium cooling apparatus
US4790147A (en) * 1986-11-18 1988-12-13 Kabushiki Kaisha Toshiba Helium cooling apparatus
GB2197711B (en) * 1986-11-18 1990-06-13 Toshiba Kk Helium cooling apparatus

Also Published As

Publication number Publication date
NL7404050A (en) 1974-10-01
US3892106A (en) 1975-07-01
BE811978A (en) 1974-07-01
FR2288956B1 (en) 1978-06-23
DE2412905C2 (en) 1985-09-26
FR2288956A1 (en) 1976-05-21
DE2412905A1 (en) 1974-10-10
IT1011633B (en) 1977-02-10
JPS49128342A (en) 1974-12-09

Similar Documents

Publication Publication Date Title
GB1489259A (en) Process and plant for the vaporisation and heating of liquefied natural gas
GB1038898A (en) Methane liquefaction system
US3613387A (en) Method and apparatus for continuously supplying refrigeration below 4.2 degree k.
GB1472080A (en) Process and apparatus for low temperature refrigeration
GB1030600A (en) The liquefaction of gases with low boiling points
GB1278974A (en) Improvements in or relating to the liquefication of natural gas
GB1087675A (en) Plant for the removal of heat at low temperatures
GB1066479A (en) Methane liquefaction process and apparatus
GB1087894A (en) Cryogenic liquefier
GB1500610A (en) Separating air to produce oxygen and/or nitrogen in the liquid state
GB1433727A (en) Method for reducing fluid losses from a cryostat
GB1153374A (en) Cryogenic Refrigeration System.
GB1084686A (en) Improvements relating to gas liquefiers
GB764815A (en) Improvements in or relating to gas refrigerators operating on the reversed hot-gas engine principle
GB1418345A (en) Method and apparatus for drying a gas and chilling it to low temperatures
GB1061910A (en) Improvements relating to refrigerators for very low temperatures
GB1057507A (en) Gas refrigeration plants
SE333385B (en)
US3109725A (en) Hydrogen liquefaction
JPS5758302A (en) Helium refrigerating apparatus
GB1222712A (en) A process and apparatus for producing energy, using thermodynamic cycles with gases condensible at ambient temperature
GB1392302A (en) Liquefaction of hydrogen or helium
GB808642A (en) Method of filling one container with condensed gas from another container
JPS5715200A (en) Boil off gas processing method
SE304294B (en)

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee