GB1333052A - Device for producing cold at temperatues below the lambta- point of helium - Google Patents

Device for producing cold at temperatues below the lambta- point of helium

Info

Publication number
GB1333052A
GB1333052A GB5050270A GB5050270A GB1333052A GB 1333052 A GB1333052 A GB 1333052A GB 5050270 A GB5050270 A GB 5050270A GB 5050270 A GB5050270 A GB 5050270A GB 1333052 A GB1333052 A GB 1333052A
Authority
GB
United Kingdom
Prior art keywords
helium
superfluid
region
superleak
heat exchanger
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
GB5050270A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB1333052A publication Critical patent/GB1333052A/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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0276—Laboratory or other miniature devices
    • 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
    • F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
    • 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
    • F25B9/12—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using 3He-4He dilution
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/0062—Light or noble gases, mixtures thereof
    • F25J1/0065—Helium
    • 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
    • F25B2341/00—Details of ejectors not being used as compression device; Details of flow restrictors or expansion valves
    • F25B2341/001—Ejectors not being used as compression device
    • F25B2341/0012—Ejectors with the cooled primary flow at high pressure
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2205/00—Processes or apparatus using other separation and/or other processing means
    • F25J2205/10—Processes or apparatus using other separation and/or other processing means using combined expansion and separation, e.g. in a vortex tube, "Ranque tube" or a "cyclonic fluid separator", i.e. combination of an isentropic nozzle and a cyclonic separator; Centrifugal separation
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/912—Liquefaction cycle of a low-boiling (feed) gas in a cryocooler, i.e. in a closed-loop refrigerator

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

1333052 Refrigerating PHILIPS GLOEILAMPENFABRIEKEN NV 23 Oct 1970 [28 Oct 1969] 50502/70 Heading F4H Apparatus for producing cold at a temperature below the lambda transition point of He<SP>4</SP> comprises a Joule-Kelvin system having a compressor 1 which passes high pressure helium through a series of pre-coolers 4, 6, 7 and countercurrent heat exchangers 5 to a throttle device 9 formed by an ejector, one portion of the expanded helium recycling back to the suction side of the compressor via the heat exchangers 5 and the other passing via a further heat exchanger 13 and expansion valve 15 to a heat exchanger 18 in thermal contact with helium in a container 16 at a low pressure which communicates with the suction side of the ejector 9. A superleak 19 is connected to the heat exchanger 18 to remove superfluid and to a cooling region 20 which in turn is connected to the container 16 through a turbulence duct 21. Since no thermal energy is transported by the superfluid helium through the superleak to the region 20, the portion of normal helium created from the superfluid on heat extraction into the region 20, is removed together with the superfluid through the turbulence duct 21, thus removing thermal energy from the region 20 and maintaining temperatures therein of approximately 1‹ K. A further superleak 23 formed by ceramic portion 24 of a tube transfers superfluid He to an apparatus 27 which is to be cooled, e.g. electric components, infra-red cells or resonant cavities.
GB5050270A 1969-10-28 1970-10-23 Device for producing cold at temperatues below the lambta- point of helium Expired GB1333052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6916204A NL6916204A (en) 1969-10-28 1969-10-28

Publications (1)

Publication Number Publication Date
GB1333052A true GB1333052A (en) 1973-10-10

Family

ID=19808236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5050270A Expired GB1333052A (en) 1969-10-28 1970-10-23 Device for producing cold at temperatues below the lambta- point of helium

Country Status (8)

Country Link
BE (1) BE758030A (en)
CA (1) CA918941A (en)
CH (1) CH527399A (en)
DE (1) DE2051629A1 (en)
FR (1) FR2066461A5 (en)
GB (1) GB1333052A (en)
NL (1) NL6916204A (en)
SE (1) SE352437B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10690406B2 (en) 2009-12-11 2020-06-23 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and device for low-temperature cooling/liquefaction
CN113701448A (en) * 2021-07-05 2021-11-26 中国科学院理化技术研究所 Hydrogen liquefaction system and hydrogen liquefaction device based on multistage supersonic two-phase expander

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2288956A1 (en) * 1973-03-27 1976-05-21 Commissariat Energie Atomique PROCESS FOR REDUCING THE CONSUMPTION OF A CRYOSTAT AND CORRESPONDING DEVICE
DE3271522D1 (en) * 1982-03-23 1986-07-10 Ibm Method and dilution refrigerator for cooling at temperatures below 1k
DE3529391A1 (en) * 1985-08-16 1987-03-05 Kernforschungsz Karlsruhe METHOD FOR COOLING AN OBJECT BY SUPRAFLUID HELIUM (HE II) AND DEVICE FOR CARRYING OUT THE METHOD

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10690406B2 (en) 2009-12-11 2020-06-23 L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Method and device for low-temperature cooling/liquefaction
CN113701448A (en) * 2021-07-05 2021-11-26 中国科学院理化技术研究所 Hydrogen liquefaction system and hydrogen liquefaction device based on multistage supersonic two-phase expander

Also Published As

Publication number Publication date
BE758030A (en) 1971-04-26
CH527399A (en) 1972-08-31
SE352437B (en) 1972-12-27
CA918941A (en) 1973-01-16
FR2066461A5 (en) 1971-08-06
NL6916204A (en) 1971-05-03
DE2051629A1 (en) 1971-05-06

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee