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GB2318176B - A refrigerator having a plurality of cooling stages - Google Patents

A refrigerator having a plurality of cooling stages

Info

Publication number
GB2318176B
GB2318176B GB9726479A GB9726479A GB2318176B GB 2318176 B GB2318176 B GB 2318176B GB 9726479 A GB9726479 A GB 9726479A GB 9726479 A GB9726479 A GB 9726479A GB 2318176 B GB2318176 B GB 2318176B
Authority
GB
United Kingdom
Prior art keywords
pulse tube
axis
refrigerator
cooling stages
regenerator
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 - Fee Related
Application number
GB9726479A
Other versions
GB2318176A (en
GB9726479D0 (en
Inventor
Yasumi Ohtani
Masahiko Takahashi
Hideo Hatakeyama
Rohana Chandratilleke
Toru Kuriyama
Hideki Nakagome
Takayuki Kobayashi
Tomomi Hattori
Tatsuya Yoshino
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
Priority claimed from JP11749795A external-priority patent/JPH08313094A/en
Priority claimed from JP11750095A external-priority patent/JPH08313095A/en
Priority claimed from JP8059193A external-priority patent/JPH0936442A/en
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority claimed from GB9610150A external-priority patent/GB2301426B/en
Publication of GB9726479D0 publication Critical patent/GB9726479D0/en
Publication of GB2318176A publication Critical patent/GB2318176A/en
Application granted granted Critical
Publication of GB2318176B publication Critical patent/GB2318176B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F25B9/10—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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F6/00—Superconducting magnets; Superconducting coils
    • H01F6/04—Cooling
    • 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
    • F25B2309/003—Gas cycle refrigeration machines characterised by construction or composition of the regenerator
    • 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 
    • F25B2309/1408—Pulse-tube cycles with pulse tube having U-turn or L-turn type geometrical arrangements
    • 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 
    • F25B2309/1413—Pulse-tube cycles characterised by performance, geometry or theory
    • 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 
    • F25B2309/1415—Pulse-tube cycles characterised by regenerator details
    • 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 
    • F25B2309/1417—Pulse-tube cycles without any valves in gas supply and return lines
    • 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 
    • F25B2309/1418—Pulse-tube cycles with valves in gas supply and return lines
    • 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 
    • F25B2309/1424—Pulse tubes with basic schematic including an orifice and a reservoir
    • F25B2309/14241—Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube
    • 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
    • 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)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Containers, Films, And Cooling For Superconductive Devices (AREA)

Abstract

In a refrigerator for cooling a superconducting coil (305) and having a plurality of cooling stages each of which includes a regenerator, at least the final stage (314) includes a pulse tube refrigerator. The axis of the pulse tube (337) is substantially parallel to the axis of the pulse tube regenerator (332). The intersection angle between the axis of the pulse tube and the axis of at least the first of the cooling stages (313) is set at a predetermined value, preferably one of 90 or 180 degrees. The regenerator (332) preferably includes a magnetic coldness-accumulating material (334). The pulse tube is situated such that the low-temperature portion (A) of the pulse tube is located downward in the direction of gravity as compared to the high-temperature portion (B).
GB9726479A 1995-05-16 1996-05-15 A refrigerator having a plurality of cooling stages Expired - Fee Related GB2318176B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP11749795A JPH08313094A (en) 1995-05-16 1995-05-16 Cold storage refrigerator
JP11754095 1995-05-16
JP11750095A JPH08313095A (en) 1995-05-16 1995-05-16 Cold storage refrigerator
JP8059193A JPH0936442A (en) 1995-05-16 1996-03-15 Superconducting magnet device
GB9610150A GB2301426B (en) 1995-05-16 1996-05-15 A refrigerator having a plurality of cooling stages

Publications (3)

Publication Number Publication Date
GB9726479D0 GB9726479D0 (en) 1998-02-11
GB2318176A GB2318176A (en) 1998-04-15
GB2318176B true GB2318176B (en) 1999-05-19

Family

ID=27517345

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9726479A Expired - Fee Related GB2318176B (en) 1995-05-16 1996-05-15 A refrigerator having a plurality of cooling stages

Country Status (1)

Country Link
GB (1) GB2318176B (en)

Families Citing this family (5)

* 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 Cryogen cooling system
US6330800B1 (en) * 1999-04-16 2001-12-18 Raytheon Company Apparatus and method for achieving temperature stability in a two-stage cryocooler
US6378312B1 (en) 2000-05-25 2002-04-30 Cryomech Inc. Pulse-tube cryorefrigeration apparatus using an integrated buffer volume
US9234691B2 (en) * 2010-03-11 2016-01-12 Quantum Design International, Inc. Method and apparatus for controlling temperature in a cryocooled cryostat using static and moving gas
JP7465562B2 (en) * 2018-09-12 2024-04-11 ザ リージェンツ オブ ザ ユニバーシティ オブ コロラド，ア ボディー コーポレイト Cryogenically cooled vacuum chamber radiation shield for cryogenic experiments and ultra-high vacuum (XHV) conditions

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295355A (en) * 1992-01-04 1994-03-22 Cryogenic Laboratory Of Chinese Academy Of Sciences Multi-bypass pulse tube refrigerator

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5295355A (en) * 1992-01-04 1994-03-22 Cryogenic Laboratory Of Chinese Academy Of Sciences Multi-bypass pulse tube refrigerator

Also Published As

Publication number Publication date
GB2318176A (en) 1998-04-15
GB9726479D0 (en) 1998-02-11

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Legal Events

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

Effective date: 20030515