GB1095991A - Improvements in or relating to an apparatus for the cooling and liquefaction of gases - Google Patents

Improvements in or relating to an apparatus for the cooling and liquefaction of gases

Info

Publication number
GB1095991A
GB1095991A GB11800/55A GB1180055A GB1095991A GB 1095991 A GB1095991 A GB 1095991A GB 11800/55 A GB11800/55 A GB 11800/55A GB 1180055 A GB1180055 A GB 1180055A GB 1095991 A GB1095991 A GB 1095991A
Authority
GB
United Kingdom
Prior art keywords
coil
air
tube
wound
fins
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
GB11800/55A
Inventor
David Hardress Parkinson
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.)
MINI OF TECHNOLOGY
Minister of Technology
Original Assignee
MINI OF TECHNOLOGY
Minister of Technology
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 MINI OF TECHNOLOGY, Minister of Technology filed Critical MINI OF TECHNOLOGY
Priority to GB11800/55A priority Critical patent/GB1095991A/en
Priority to US579021A priority patent/US3366796A/en
Publication of GB1095991A publication Critical patent/GB1095991A/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
    • F25B9/02—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
    • 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S62/00—Refrigeration
    • Y10S62/19—Ionic thompson effect

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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

1095991 Liquefying gases; tubular heat exchange elements MINISTER OF TECHNOLOGY 21 March 1956 [23 April 1955] 11800/55 Headings F4H and HG13 A heat exchanger comprises a tube having fins helically wound on it and itself wound about a cylindrical mounting of low thermal capacity, a pressure head for feeding one end of the tube, an expansion nozzle terminating the other end of the tube, and resilient worming wound with the tube to define in conjunction with the internal wall of a cylindrical container into which the heat exchanger is inserted in operation, a passage through the tube fins and extending concentrically with the axis of the cylindrical mounting for gas expanded by the expansion nozzle. In the Figure the heat exchanger coil 1 is wound on a cylinder 2 and wormed with cotton packing threads 3; the coil is secured between end caps 4, 5 and is provided with an expansion nozzle 7 at one end. A continuous spiral of copper is wound round the coil to provide cooling fins. The space 6 between the end caps is filled with a material of low thermal capacity to reduce convection. In use, the coil is inserted into a cooling space 11 in a double-walled Dewar flask, and fits snugly by virtue of the cotton threads 3, which cushion the coil against the glass sides of the flask; a resilient thermally conductive tubular sheath may be fitted over the outside of the coil 1 and the packing threads 3 to facilitate its insertion into the flask. High-pressure air from an air bottle enters the top end of the coil and after passing through the coil expands through the nozzle 7 and passes back round the outside of the coil and exhausts to the atmosphere. In an example 120 c.c. of air pass through the coil each second, and liquid air forms in the space 11 after about 24 seconds; the liquid air is absorbed by cotton wool 17, so that it is possible to use the apparatus in any altitude. The cooling may be controlled by adding 0À5% of carbon dioxide to the air so that the fins of the coil become blocked by solid carbon dioxide some time after liquefaction begins; the flow of air then ceases until the apparatus warms sufficiently to melt the carbon dioxide, whereupon the cycle re-commences.
GB11800/55A 1955-04-23 1955-04-23 Improvements in or relating to an apparatus for the cooling and liquefaction of gases Expired GB1095991A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB11800/55A GB1095991A (en) 1955-04-23 1955-04-23 Improvements in or relating to an apparatus for the cooling and liquefaction of gases
US579021A US3366796A (en) 1955-04-23 1956-04-18 Apparatus for the cooling and liquefaction of gases

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB11800/55A GB1095991A (en) 1955-04-23 1955-04-23 Improvements in or relating to an apparatus for the cooling and liquefaction of gases

Publications (1)

Publication Number Publication Date
GB1095991A true GB1095991A (en) 1967-12-20

Family

ID=9992939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11800/55A Expired GB1095991A (en) 1955-04-23 1955-04-23 Improvements in or relating to an apparatus for the cooling and liquefaction of gases

Country Status (2)

Country Link
US (1) US3366796A (en)
GB (1) GB1095991A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119071A (en) * 1982-04-19 1983-11-09 British Aerospace Joule-Thomson cooling apparatus
CN105765320A (en) * 2013-09-23 2016-07-13 D-波系统公司 Systems and methods for cryogenic refrigeration

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495204A (en) * 1967-02-16 1970-02-10 Siemens Ag Electrical resistors having alcoholwater coolant

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189807773A (en) * 1898-04-01 1899-03-04 William Hampson Improvements in the Process and Apparatus for the Self-intensive Refrigeration of Gases by Expansion and Counter-current Interchange.
US2521181A (en) * 1947-07-21 1950-09-05 Charles P Morse Cigarette lighter
US2690060A (en) * 1949-08-22 1954-09-28 Phillips Petroleum Co Fractional distillation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2119071A (en) * 1982-04-19 1983-11-09 British Aerospace Joule-Thomson cooling apparatus
CN105765320A (en) * 2013-09-23 2016-07-13 D-波系统公司 Systems and methods for cryogenic refrigeration

Also Published As

Publication number Publication date
US3366796A (en) 1968-01-30

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