SU606042A1 - Способ производства холода - Google Patents
Способ производства холодаInfo
- Publication number
- SU606042A1 SU606042A1 SU762323651A SU2323651A SU606042A1 SU 606042 A1 SU606042 A1 SU 606042A1 SU 762323651 A SU762323651 A SU 762323651A SU 2323651 A SU2323651 A SU 2323651A SU 606042 A1 SU606042 A1 SU 606042A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- cold
- generating cold
- parts
- expander
- flow
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 9
- 239000003507 refrigerant Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
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
- 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
- F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
- F25J1/0005—Light or noble gases
- F25J1/0007—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
- 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
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/0035—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work
- F25J1/0037—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by gas expansion with extraction of work of a return stream
-
- 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
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0032—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
- F25J1/004—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using the feed stream itself or separated fractions from it, i.e. "internal refrigeration" by flash gas recovery
-
- 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
- F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
- F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
- F25J1/005—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by expansion of a gaseous refrigerant stream with extraction of work
-
- 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
- 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
- F25J1/0201—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 using only internal refrigeration means, i.e. without external refrigeration
- F25J1/0202—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 using only internal refrigeration means, i.e. without external refrigeration in a quasi-closed internal refrigeration loop
-
- 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
- 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
- F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
- F25J2230/08—Cold compressor, i.e. suction of the gas at cryogenic temperature and generally without afterstage-cooler
-
- 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
- F25J2270/04—Internal refrigeration with work-producing gas expansion loop
- F25J2270/06—Internal refrigeration with work-producing gas expansion loop with multiple gas expansion loops
-
- 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
- F25J2270/14—External refrigeration with work-producing gas expansion loop
- F25J2270/16—External refrigeration with work-producing gas expansion loop with mutliple gas expansion loops of the same refrigerant
-
- 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
-
- 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
- Y10S505/00—Superconductor technology: apparatus, material, process
- Y10S505/825—Apparatus per se, device per se, or process of making or operating same
- Y10S505/888—Refrigeration
- Y10S505/899—Method of cooling
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)
- Separation By Low-Temperature Treatments (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Description
1
Изобретение относитс к криогенной технике, в частности к способам произ водства холода на гелиевом температурном уровне и может быть использовано дл обеспечени нормальной работы сверхпровод щих кабелей, электронных устройств, а также применено в экспериментальной физике.
Известен способ получени холода, в котором поток сжатого хладагента сжимают до давлени большего критического , дел т на несколько частей, по крайней мере, одну из этих частей расшир ют с отдачей внешней работы, а другую ожижают.в процессе теплаобмена с упом нутой частью потока ij .
Недостатком способа вл етс высокое значение удельной затраты энергии и недостатОЧна экономичность.
Известен также способ получени холода в криогенных установках путем газообразного хладагента, охлаждени его обратным потоком, разделени пр мого, потока на две части, одну из которых, дополнительную, используют после расширени в детандере дл компенсации необратимых потерь, а другую, основную, адиабатически расшир ют , например, адиабатически в детандере с получением жидкого хладагента , jfOTOEWE направл ют потребителю холода 2J .
Недостаток этого способа при получении холода на температурном уровне кипени , например гели , заключаетс в том, что разность температур между пр мым и обратным потоками в нижней ступени охлаждени довольно велика, что приводит к увеличению потерь от необратимости и снижению его экономичности.
Целью изобретени вл етс повышение экономичности способа путем снижени разности температур между пр мым и обратным потоками.
Поставленна цель достигаетс тем, что давление обеих частей потока перед их подачей в нижнюю ступень охлаждени уменьшают путем их расширени , например в детандере, ожижают, полученный жидкий хладагент отвод т потребителю,, а пары используют дл охлаждени основной и дополнительной частей пр мого потока.
На фиг. 1 представлена диаграмма реализаци способа; на фиг. 2 - схема установки, в которой осуществл етс способ получени холода.
В диаграмме Т S линии О - Ь и - р соответствуют процессам ох
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762323651A SU606042A1 (ru) | 1976-03-03 | 1976-03-03 | Способ производства холода |
US05/773,414 US4161107A (en) | 1976-03-03 | 1977-03-01 | Method of producing supercold temperature in cryogenic systems |
CH261977A CH606946A5 (ru) | 1976-03-03 | 1977-03-02 | |
GB9081/77A GB1531685A (en) | 1976-03-03 | 1977-03-03 | Method of producing a cryogenic temperature |
DE2709192A DE2709192C3 (de) | 1976-03-03 | 1977-03-03 | Verfahren zur Kälteerzeugung |
JP2226577A JPS52115453A (en) | 1976-03-03 | 1977-03-03 | Super low temperature generating system in super low temperature apparatus |
FR7706303A FR2343211A1 (fr) | 1976-03-03 | 1977-03-03 | Procede de production de froid dans les installations cryogeniques |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU762323651A SU606042A1 (ru) | 1976-03-03 | 1976-03-03 | Способ производства холода |
Publications (1)
Publication Number | Publication Date |
---|---|
SU606042A1 true SU606042A1 (ru) | 1978-05-05 |
Family
ID=20648637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU762323651A SU606042A1 (ru) | 1976-03-03 | 1976-03-03 | Способ производства холода |
Country Status (7)
Country | Link |
---|---|
US (1) | US4161107A (ru) |
JP (1) | JPS52115453A (ru) |
CH (1) | CH606946A5 (ru) |
DE (1) | DE2709192C3 (ru) |
FR (1) | FR2343211A1 (ru) |
GB (1) | GB1531685A (ru) |
SU (1) | SU606042A1 (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2498176C1 (ru) * | 2012-03-23 | 2013-11-10 | Межрегиональное общественное учреждение "Институт инженерной физики" | Способ производства холода в криогенной компрессорно-детандерной установке разделения воздуха |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4267701A (en) * | 1979-11-09 | 1981-05-19 | Helix Technology Corporation | Helium liquefaction plant |
SU1086319A1 (ru) * | 1980-09-08 | 1984-04-15 | Всесоюзный научно-исследовательский институт гелиевой техники | Расширительное устройство дл получени холода |
US4346563A (en) * | 1981-05-15 | 1982-08-31 | Cvi Incorporated | Super critical helium refrigeration process and apparatus |
EP0168519A3 (de) * | 1984-07-20 | 1986-11-26 | GebràDer Sulzer Aktiengesellschaft | Vorrichtung zum Verflüssigen eines tiefsiedenden Gases, insbesondere Heliumgas |
US4835979A (en) * | 1987-12-18 | 1989-06-06 | Allied-Signal Inc. | Surge control system for a closed cycle cryocooler |
FR2668583B1 (fr) * | 1990-10-26 | 1997-06-20 | Air Liquide | Procede de liquefaction d'un gaz et installation de refrigeration. |
FR2775518B1 (fr) * | 1998-03-02 | 2000-05-05 | Air Liquide | Procede et installation de production frigorifique a partir d'un cycle thermique d'un fluide a bas point d'ebullition |
US20070107465A1 (en) * | 2001-05-04 | 2007-05-17 | Battelle Energy Alliance, Llc | Apparatus for the liquefaction of gas and methods relating to same |
US6484516B1 (en) * | 2001-12-07 | 2002-11-26 | Air Products And Chemicals, Inc. | Method and system for cryogenic refrigeration |
US7278280B1 (en) * | 2005-03-10 | 2007-10-09 | Jefferson Science Associates, Llc | Helium process cycle |
US7409834B1 (en) * | 2005-03-10 | 2008-08-12 | Jefferson Science Associates Llc | Helium process cycle |
US9217603B2 (en) | 2007-09-13 | 2015-12-22 | Battelle Energy Alliance, Llc | Heat exchanger and related methods |
US9254448B2 (en) | 2007-09-13 | 2016-02-09 | Battelle Energy Alliance, Llc | Sublimation systems and associated methods |
US8899074B2 (en) * | 2009-10-22 | 2014-12-02 | Battelle Energy Alliance, Llc | Methods of natural gas liquefaction and natural gas liquefaction plants utilizing multiple and varying gas streams |
US8555672B2 (en) | 2009-10-22 | 2013-10-15 | Battelle Energy Alliance, Llc | Complete liquefaction methods and apparatus |
US9574713B2 (en) | 2007-09-13 | 2017-02-21 | Battelle Energy Alliance, Llc | Vaporization chambers and associated methods |
US20110094261A1 (en) * | 2009-10-22 | 2011-04-28 | Battelle Energy Alliance, Llc | Natural gas liquefaction core modules, plants including same and related methods |
US10655911B2 (en) | 2012-06-20 | 2020-05-19 | Battelle Energy Alliance, Llc | Natural gas liquefaction employing independent refrigerant path |
FR3119667B1 (fr) * | 2021-02-10 | 2023-03-24 | Air Liquide | Dispositif et procédé de liquéfaction d’un fluide tel que l’hydrogène et/ou de l’hélium |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3098732A (en) * | 1959-10-19 | 1963-07-23 | Air Reduction | Liquefaction and purification of low temperature gases |
US3285028A (en) * | 1964-01-06 | 1966-11-15 | Air Prod & Chem | Refrigeration method |
US3250079A (en) * | 1965-03-15 | 1966-05-10 | Little Inc A | Cryogenic liquefying-refrigerating method and apparatus |
US3415077A (en) * | 1967-01-31 | 1968-12-10 | 500 Inc | Method and apparatus for continuously supplying refrigeration below 4.2deg k. |
US3524327A (en) * | 1968-05-31 | 1970-08-18 | Air Liquide | Method of maintaining electrical apparatus at very low temperatures |
US3613387A (en) * | 1969-06-09 | 1971-10-19 | Cryogenic Technology Inc | Method and apparatus for continuously supplying refrigeration below 4.2 degree k. |
GB1358169A (en) * | 1970-10-19 | 1974-06-26 | Cryogenic Technology Inc | Method and apparatus for liquefying helium by isentropic expansion |
-
1976
- 1976-03-03 SU SU762323651A patent/SU606042A1/ru active
-
1977
- 1977-03-01 US US05/773,414 patent/US4161107A/en not_active Expired - Lifetime
- 1977-03-02 CH CH261977A patent/CH606946A5/xx not_active IP Right Cessation
- 1977-03-03 GB GB9081/77A patent/GB1531685A/en not_active Expired
- 1977-03-03 JP JP2226577A patent/JPS52115453A/ja active Pending
- 1977-03-03 FR FR7706303A patent/FR2343211A1/fr active Granted
- 1977-03-03 DE DE2709192A patent/DE2709192C3/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2498176C1 (ru) * | 2012-03-23 | 2013-11-10 | Межрегиональное общественное учреждение "Институт инженерной физики" | Способ производства холода в криогенной компрессорно-детандерной установке разделения воздуха |
Also Published As
Publication number | Publication date |
---|---|
DE2709192B2 (de) | 1981-04-16 |
JPS52115453A (en) | 1977-09-28 |
GB1531685A (en) | 1978-11-08 |
DE2709192A1 (de) | 1977-09-08 |
DE2709192C3 (de) | 1985-05-30 |
FR2343211A1 (fr) | 1977-09-30 |
US4161107A (en) | 1979-07-17 |
CH606946A5 (ru) | 1978-11-30 |
FR2343211B1 (ru) | 1979-03-09 |
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