EP0905435A3 - Load bearing means in cryostat systems - Google Patents

Load bearing means in cryostat systems Download PDF

Info

Publication number
EP0905435A3
EP0905435A3 EP19980116962 EP98116962A EP0905435A3 EP 0905435 A3 EP0905435 A3 EP 0905435A3 EP 19980116962 EP19980116962 EP 19980116962 EP 98116962 A EP98116962 A EP 98116962A EP 0905435 A3 EP0905435 A3 EP 0905435A3
Authority
EP
European Patent Office
Prior art keywords
cryostat
support
magnet
suspension
superconducting magnet
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.)
Withdrawn
Application number
EP19980116962
Other languages
German (de)
French (fr)
Other versions
EP0905435A2 (en
Inventor
Wolfgang Stautner
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.)
Siemens Magnet Technology Ltd
Original Assignee
Oxford Magnet Technology Ltd
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 Oxford Magnet Technology Ltd filed Critical Oxford Magnet Technology Ltd
Publication of EP0905435A2 publication Critical patent/EP0905435A2/en
Publication of EP0905435A3 publication Critical patent/EP0905435A3/en
Withdrawn legal-status Critical Current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
    • F17C3/085—Cryostats
    • 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
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F25B9/145—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle pulse-tube cycle
    • 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
    • F17C2203/068—Special properties of materials for vessel walls
    • F17C2203/0687—Special properties of materials for vessel walls superconducting
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F17C2227/0353—Heat exchange with the fluid by cooling using another fluid using cryocooler
    • 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
    • F17C2270/00—Applications
    • F17C2270/05—Applications for industrial use
    • F17C2270/0509—"Dewar" vessels
    • 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
    • F25B2309/14—Compression machines, plants or systems characterised by the cycle used 
    • F25B2309/1425—Pulse tubes with basic schematic including several pulse tubes
    • 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
    • F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • F25D19/006—Thermal coupling structure or interface

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)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

The various components, namely the different vessels contained within each other for housing the superconducting magnet, or the liquid comprising a cryostat or storage tank for cryogenic liquids are generally either suspended or supported by each other. Thus, a support/suspension system has various tasks, besides carrying the magnet or shield loads, it also keeps the position of the cold mass during shipping and also fixes the internal clearances between the radiation shields during installation as well as repeated cooldown. The various constraints put onto these suspension systems result in an increased input of heat into the cryostat depending on the overall size of cryostat and superconducting magnet system.
Various parts of the cryogenic components such as radiation shields have to be cooled, either by means of using liquids or by using forced convection cooling, or by other external means such as conventional GM-cryocoolers.
The present invention therefore provides a new type of support or suspension system which combines the two functions mentioned above, namely supporting or suspending and cooling, and applies these to the pulse tube cooler. The pulse tubes (22-38) could be arranged in series or in parallel, could be single or multi-staged or feature an additional liquefying stage and suspend or support a superconducting magnet or HTS conductor within a cryostat. The pulse tube being either a suspension or support member could also simultaneously cool the shields 26 connected to it and at the same time carry shield or magnet loads.
EP19980116962 1997-09-30 1998-09-08 Load bearing means in cryostat systems Withdrawn EP0905435A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9720634A GB2329699A (en) 1997-09-30 1997-09-30 Load bearing means in cryostat systems
GB9720634 1997-09-30

Publications (2)

Publication Number Publication Date
EP0905435A2 EP0905435A2 (en) 1999-03-31
EP0905435A3 true EP0905435A3 (en) 1999-09-01

Family

ID=10819765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980116962 Withdrawn EP0905435A3 (en) 1997-09-30 1998-09-08 Load bearing means in cryostat systems

Country Status (3)

Country Link
EP (1) EP0905435A3 (en)
JP (1) JPH11182959A (en)
GB (1) GB2329699A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000022226A (en) * 1998-06-30 2000-01-21 Kobe Steel Ltd Cooling apparatus for low temperature container
GB0125188D0 (en) 2001-10-19 2001-12-12 Oxford Magnet Tech A pulse tube refrigerator sleeve
GB2441795B (en) 2006-09-15 2010-06-02 Siemens Magnet Technology Ltd A supported superconducting magnet
JP4668238B2 (en) 2007-05-08 2011-04-13 住友重機械工業株式会社 Cold storage refrigerator and pulse tube refrigerator
JP2012104781A (en) * 2010-11-15 2012-05-31 Railway Technical Research Institute High-temperature superconductive magnet cooling system with vehicle-mounted pulse tube refrigerator
DE102014203351B4 (en) * 2014-02-25 2017-10-19 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Support for storage and thermal insulation of fluid tanks
PL235257B1 (en) * 2017-12-02 2020-06-15 Czechowski Michal Ma Consulting Device for self-replacement of cylinders, preferably gas cylinders

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100987A (en) * 1981-06-12 1983-01-12 William Balfour Bald Cryosurgical probe
EP0260036A2 (en) * 1986-09-09 1988-03-16 Oxford Medical Limited Cyrostat assembly
EP0780698A1 (en) * 1995-12-22 1997-06-25 Spectrospin Ag NMR apparatus with pulse tube refrigerator
US5647219A (en) * 1996-06-24 1997-07-15 Hughes Electronics Cooling system using a pulse-tube expander

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5613365A (en) * 1994-12-12 1997-03-25 Hughes Electronics Concentric pulse tube expander
US5711157A (en) * 1995-05-16 1998-01-27 Kabushiki Kaisha Toshiba Cooling system having a plurality of cooling stages in which refrigerant-filled chamber type refrigerators are used

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2100987A (en) * 1981-06-12 1983-01-12 William Balfour Bald Cryosurgical probe
EP0260036A2 (en) * 1986-09-09 1988-03-16 Oxford Medical Limited Cyrostat assembly
EP0780698A1 (en) * 1995-12-22 1997-06-25 Spectrospin Ag NMR apparatus with pulse tube refrigerator
US5647219A (en) * 1996-06-24 1997-07-15 Hughes Electronics Cooling system using a pulse-tube expander

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
B. E. EVANS AND R. N. RICHARDSON: "pulse tube coolers for hts devices", CRYOGENICS, vol. 37, no. 10, 1997, pages 69565 - 697, XP002108332 *

Also Published As

Publication number Publication date
JPH11182959A (en) 1999-07-06
GB9720634D0 (en) 1997-11-26
GB2329699A (en) 1999-03-31
EP0905435A2 (en) 1999-03-31

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