GB1431333A - Cryogenic refrigeration utilising the joule-thomson effect - Google Patents
Cryogenic refrigeration utilising the joule-thomson effectInfo
- Publication number
- GB1431333A GB1431333A GB1400773A GB1400773A GB1431333A GB 1431333 A GB1431333 A GB 1431333A GB 1400773 A GB1400773 A GB 1400773A GB 1400773 A GB1400773 A GB 1400773A GB 1431333 A GB1431333 A GB 1431333A
- Authority
- GB
- United Kingdom
- Prior art keywords
- orifice
- refrigerant
- joule
- flow rate
- passage
- 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
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
- F25B9/02—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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
1431333 Refrigerating L'AIR LIQUIDESOC ANON POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 22 March 1973 [23 May 1972] 14007/73 Heading F4H In a cryogenic refrigeration apparatus, the flow of refrigerant through a Joule-Thomson nozzle is maintained at a rate above a predetermined minimum and the flow rate also may be proportional to the temperature of low pressure fluid in the apparatus. As described, a radiation detector 18 mounted in a dewar 5, 6 is cooled by a refrigerant, e.g. nitrogen, passed to a Joule- Thomson orifice 11 through a coiled heat exchange tube 50 over which the low pressure gas from an expansion chamber 17 in thermal contact with the detector passes through a passage 8. The proportional flow rate of refrigerant through the orifice is controlled either by the position of a needle valve 10 controlled by a bellows 20 defining a chamber 19 filled with a sealed charge of an expandable gas and sensitive to the temperature within the passage 8 or by a thermocouple in the chamber 17 which generates an electrical signal which is transmitted to an electro-pneumatic valve located externally of the apparatus to control the refrigerant flow to the orifice. The minimum flow rate is achieved either by a needle adapted to allow at least 2% of the total cross-section of the orifice to be open at all times or a leakage passage is formed in the seating of the valve or in the needle valve itself.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7210139A FR2176544B1 (en) | 1972-03-23 | 1972-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1431333A true GB1431333A (en) | 1976-04-07 |
Family
ID=9095674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1400773A Expired GB1431333A (en) | 1972-03-23 | 1973-03-22 | Cryogenic refrigeration utilising the joule-thomson effect |
Country Status (5)
Country | Link |
---|---|
US (1) | US3827252A (en) |
JP (1) | JPS4935940A (en) |
DE (1) | DE2314003A1 (en) |
FR (1) | FR2176544B1 (en) |
GB (1) | GB1431333A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2665753A1 (en) * | 1990-08-07 | 1992-02-14 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus using the Joule-Thompson effect |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4080802A (en) * | 1976-07-14 | 1978-03-28 | International Telephone And Telegraph Corporation | Hybrid gas cryogenic cooler |
US4236518A (en) * | 1978-04-14 | 1980-12-02 | Gyne-Tech Instrument Corporation | Cryogenic device selectively operable in a continuous freezing mode, a continuous thawing mode or a combination thereof |
US4237699A (en) * | 1979-05-23 | 1980-12-09 | Air Products And Chemicals, Inc. | Variable flow cryostat with dual orifice |
FR2520131B1 (en) * | 1982-01-19 | 1985-09-20 | Telecommunications Sa | REGULATION DEVICE FOR A JOULE-THOMSON EFFECT REFRIGERATOR |
GB2153509B (en) * | 1984-01-26 | 1986-11-12 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus |
FR2568385B1 (en) * | 1984-07-30 | 1986-09-26 | Telecommunications Sa | JOULE-THOMSON COOLER REGULATOR |
US4631928A (en) * | 1985-10-31 | 1986-12-30 | General Pneumatics Corporation | Joule-Thomson apparatus with temperature sensitive annular expansion passageway |
FR2598206B1 (en) * | 1986-05-05 | 1988-07-08 | Air Liquide | JOULE-THOMSON COOLER. |
FR2599128A1 (en) * | 1986-05-26 | 1987-11-27 | Air Liquide | PROCESS FOR SUPPLYING A JOULE-THOMSON COOLER AND COOLING APPARATUS FOR ITS IMPLEMENTATION |
FR2645256B1 (en) * | 1989-03-15 | 1994-12-23 | Air Liquide | JOULE-THOMSON DUAL FLOW COOLER |
US5548963A (en) * | 1995-06-08 | 1996-08-27 | Hughes Missile Systems Company | Joule-Thompson cryostat for use with multiple coolants |
US5595065A (en) * | 1995-07-07 | 1997-01-21 | Apd Cryogenics | Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device |
CA2969978C (en) * | 2016-06-24 | 2019-07-02 | Universidad De Zaragoza | System and method for improving the liquefaction rate in cryocooler- based cryogen gas liquefiers |
CN110142546B (en) * | 2019-05-15 | 2021-04-30 | 中国电子科技集团公司第十一研究所 | Corrugated pipe type J-T refrigerator self-adjusting mechanism assembling clamp using diaphragm spring |
CN110274404A (en) * | 2019-05-15 | 2019-09-24 | 中国电子科技集团公司第十一研究所 | Bellows self-adjustable J-T refrigerator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3055192A (en) * | 1960-12-01 | 1962-09-25 | Specialties Dev Corp | Cooling apparatus |
US3320755A (en) * | 1965-11-08 | 1967-05-23 | Air Prod & Chem | Cryogenic refrigeration system |
US3517525A (en) * | 1967-06-28 | 1970-06-30 | Hymatic Eng Co Ltd | Cooling apparatus employing the joule-thomson effect |
US3457730A (en) * | 1967-10-02 | 1969-07-29 | Hughes Aircraft Co | Throttling valve employing the joule-thomson effect |
GB1238911A (en) * | 1968-08-06 | 1971-07-14 | ||
US3704598A (en) * | 1969-03-25 | 1972-12-05 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus |
US3640091A (en) * | 1969-05-13 | 1972-02-08 | Santa Barbara Res Center | Valve arrangement to provide temperature level control at cryogenic temperature ranges |
GB1330837A (en) * | 1969-12-08 | 1973-09-19 | Hymatic Eng Co Ltd | Cooling apparatus |
GB1311003A (en) * | 1970-02-18 | 1973-03-21 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus |
US3728868A (en) * | 1971-12-06 | 1973-04-24 | Air Prod & Chem | Cryogenic refrigeration system |
-
1972
- 1972-03-23 FR FR7210139A patent/FR2176544B1/fr not_active Expired
-
1973
- 1973-03-19 US US00342672A patent/US3827252A/en not_active Expired - Lifetime
- 1973-03-21 DE DE19732314003 patent/DE2314003A1/en not_active Ceased
- 1973-03-22 GB GB1400773A patent/GB1431333A/en not_active Expired
- 1973-03-23 JP JP48032825A patent/JPS4935940A/ja active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2665753A1 (en) * | 1990-08-07 | 1992-02-14 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus using the Joule-Thompson effect |
GB2247517A (en) * | 1990-08-07 | 1992-03-04 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus |
US5181386A (en) * | 1990-08-07 | 1993-01-26 | The Hymatic Engineering Company Limited | Cryogenic cooling apparatus |
GB2247517B (en) * | 1990-08-07 | 1994-01-26 | Hymatic Eng Co Ltd | Cryogenic cooling apparatus |
USRE34748E (en) * | 1990-08-07 | 1994-10-04 | The Hymatic Engineering Company Limited | Cryogenic cooling apparatus |
Also Published As
Publication number | Publication date |
---|---|
FR2176544B1 (en) | 1982-02-19 |
JPS4935940A (en) | 1974-04-03 |
FR2176544A1 (en) | 1973-11-02 |
US3827252A (en) | 1974-08-06 |
DE2314003A1 (en) | 1973-10-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1431333A (en) | Cryogenic refrigeration utilising the joule-thomson effect | |
US3320755A (en) | Cryogenic refrigeration system | |
GB1411758A (en) | Cryogenic refrigeration system | |
ES449090A1 (en) | Movable expansion valve | |
GB1454508A (en) | Refrigeration control systems | |
GB1308868A (en) | Cryogenic freezer control | |
US3714796A (en) | Cryogenic refrigeration system with dual circuit heat exchanger | |
GB1310766A (en) | Apparatus for the continuous cooling of objects to temperatures below 2.18k | |
GB1238911A (en) | ||
GB1252853A (en) | ||
GB1422535A (en) | Cryogenic apparatus | |
GB1213113A (en) | Device for sealing off valve stems | |
GB1255136A (en) | Cryostat | |
FR2377588A1 (en) | CRYOGENIC COOLING UNIT | |
US4237699A (en) | Variable flow cryostat with dual orifice | |
GB1246161A (en) | Generation of energy in a gas cycle | |
GB1397000A (en) | Chilling of water | |
GB1330837A (en) | Cooling apparatus | |
JPS5790558A (en) | Low temperature generator | |
GB1138781A (en) | An apparatus for determining the photosynthetic performance and the transpiration rate of plants | |
GB1230896A (en) | ||
JPH04227439A (en) | Low-temperature cooling device | |
GB1238470A (en) | ||
GB1297131A (en) | ||
US3225174A (en) | Apparatus for maintaining constant the temperature of a flow of cryogenic gas |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19930321 |