GB1411758A - Cryogenic refrigeration system - Google Patents

Cryogenic refrigeration system

Info

Publication number
GB1411758A
GB1411758A GB5628772A GB5628772A GB1411758A GB 1411758 A GB1411758 A GB 1411758A GB 5628772 A GB5628772 A GB 5628772A GB 5628772 A GB5628772 A GB 5628772A GB 1411758 A GB1411758 A GB 1411758A
Authority
GB
United Kingdom
Prior art keywords
bellows
mandrel
tube
sensing bulb
cryostat
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
GB5628772A
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.)
Air Products and Chemicals Inc
Original Assignee
Air Products and Chemicals Inc
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 Air Products and Chemicals Inc filed Critical Air Products and Chemicals Inc
Publication of GB1411758A publication Critical patent/GB1411758A/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
    • 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
    • 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

Abstract

1411758 Refrigerating AIR PRODUCTS & CHEMICALS Inc 6 Dec 1972 [6 Dec 1971] 56287/72 Heading F4H Flow of working fluid through the Joule- Thomson orifice 22 of a cryostat 10 is controlled by a needle valve 24 in a block 23 slidably disposed within a mandrel 12, the block having a thin walled tube 32 affixed thereto which is connected to a flexible bellows 34, the space between the bellows, block and tube defining a temperature sensing bulb 35 filled with a fluid e.g. nitrogen gas. The sensing bulb is located between 5% and 30% of the distance from the cold end 20 of the cryostat towards the warm end 16. The bellows 34 has a cap 36 through which a charging tube 38 extends into the bellows at one end and at the other into a bellows extension tube 40 with a cap 42 welded to the mandrel 12. A finned heat-exchange coil 15 for the working fluid extends about the mandrel, and a dewar vessel (not shown) surrounds the cryostat. In a modification the sensing bulb is connected by a capillary tube to a bellows located in a housing which is secured to the warm end of the mandrel. In a further modification the dewar vessel and mandrel are of stepped form, or the bellows is situated within the sensing bulb.
GB5628772A 1971-12-06 1972-12-06 Cryogenic refrigeration system Expired GB1411758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US20488371A 1971-12-06 1971-12-06

Publications (1)

Publication Number Publication Date
GB1411758A true GB1411758A (en) 1975-10-29

Family

ID=22759871

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5628772A Expired GB1411758A (en) 1971-12-06 1972-12-06 Cryogenic refrigeration system

Country Status (7)

Country Link
US (1) US3728868A (en)
DE (1) DE2259807C2 (en)
FR (1) FR2165920B1 (en)
GB (1) GB1411758A (en)
IL (1) IL41023A (en)
NL (1) NL7216517A (en)
SE (1) SE396469B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091462A (en) * 2016-06-08 2016-11-09 西安交通大学 A kind of self-adjustable throttling refrigerator using memory metal alloy

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3857255A (en) * 1971-11-26 1974-12-31 A Elwood Cryogenic control valve
FR2176544B1 (en) * 1972-03-23 1982-02-19 Air Liquide
FR2322337A1 (en) * 1975-08-26 1977-03-25 Air Liquide REFRIGERANT SUPPLY DEVICE FOR AN OPEN CIRCUIT REFRIGERATOR, AND REFRIGERATION SYSTEM INCLUDING SUCH A DEVICE
GB1557922A (en) * 1977-01-13 1979-12-19 Hymatic Eng Co Ltd Cryogenic cooling apparatus
US4152903A (en) * 1978-04-13 1979-05-08 Air Products And Chemicals, Inc. Bimaterial demand flow cryostat
US4223540A (en) * 1979-03-02 1980-09-23 Air Products And Chemicals, Inc. Dewar and removable refrigerator for maintaining liquefied gas inventory
US4237699A (en) * 1979-05-23 1980-12-09 Air Products And Chemicals, Inc. Variable flow cryostat with dual orifice
US4277949A (en) * 1979-06-22 1981-07-14 Air Products And Chemicals, Inc. Cryostat with serviceable refrigerator
US4653284A (en) * 1984-06-29 1987-03-31 Air Products And Chemicals, Inc. Joule-Thomson heat exchanger and cryostat
FR2645256B1 (en) * 1989-03-15 1994-12-23 Air Liquide JOULE-THOMSON DUAL FLOW COOLER
US5313801A (en) * 1992-07-07 1994-05-24 Apd Cryogenics, Inc. Cryostat throttle
DE4235757A1 (en) * 1992-10-23 1994-04-28 Licentia Gmbh Radiation detector - has detector element on wall of Dewar vessel vacuum chamber with Joule-Thomson cooler
GB9505915D0 (en) * 1995-03-23 1995-05-10 Ultra Electronics Ltd Cooler
US5595065A (en) * 1995-07-07 1997-01-21 Apd Cryogenics Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device
US5787713A (en) * 1996-06-28 1998-08-04 American Superconductor Corporation Methods and apparatus for liquid cryogen gasification utilizing cryoelectronics
US6173577B1 (en) 1996-08-16 2001-01-16 American Superconductor Corporation Methods and apparatus for cooling systems for cryogenic power conversion electronics
GB2548160B (en) * 2016-03-11 2019-08-21 Siemens Healthcare Ltd A cryostat with cryogenic refrigerator

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3269140A (en) * 1964-07-10 1966-08-30 Santa Barbara Res Ct Temperature sensitive valve arrangement
GB1238911A (en) * 1968-08-06 1971-07-14
GB1297131A (en) * 1969-03-25 1972-11-22
US3640091A (en) * 1969-05-13 1972-02-08 Santa Barbara Res Center Valve arrangement to provide temperature level control at cryogenic temperature ranges
US3691784A (en) * 1970-02-03 1972-09-19 Hymatic Eng Co Ltd Cryogenic refrigerating apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106091462A (en) * 2016-06-08 2016-11-09 西安交通大学 A kind of self-adjustable throttling refrigerator using memory metal alloy
CN106091462B (en) * 2016-06-08 2019-01-29 西安交通大学 A kind of self-adjustable throttling refrigerator using memory metal alloy

Also Published As

Publication number Publication date
DE2259807C2 (en) 1982-07-15
NL7216517A (en) 1973-06-08
IL41023A (en) 1975-10-15
US3728868A (en) 1973-04-24
FR2165920B1 (en) 1977-10-28
SE396469B (en) 1977-09-19
IL41023A0 (en) 1973-02-28
DE2259807A1 (en) 1973-06-14
FR2165920A1 (en) 1973-08-10

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Legal Events

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