GB1054993A - - Google Patents
Info
- Publication number
- GB1054993A GB1054993A GB1054993DA GB1054993A GB 1054993 A GB1054993 A GB 1054993A GB 1054993D A GB1054993D A GB 1054993DA GB 1054993 A GB1054993 A GB 1054993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- compressor
- stream
- expansion
- helium
- passes
- 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
- 229910052734 helium Inorganic materials 0.000 abstract 4
- 239000001307 helium Substances 0.000 abstract 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract 4
- 238000001816 cooling Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 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
- 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
- F25B9/06—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
-
- 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
- F25B7/00—Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
1,054,993. Refrigerating. AIR PRODUCTS & CHEMICALS Inc. Jan. 17. 1964 [Jan. 18, 1963], No. 2107/64. Heading F4H. Low temperatures are produced by submitting a stream of compressed helium to heat exchange with two expanded portions of another stream of compressed helium and finally expanding the stream itself. As illustrated, a steam 3 of helium from a compressor 1 is split into two streams, one of which 7 passes through an expansion engine 9 and a heat exchanger 11 and the other of which passes through an expansion engine 19 and a heat exchanger 21. The return streams to the compressor pre-cool the streams passing to the espansion engines in heat exchangers 5, 15 and 17. A further stream of helium from a compressor 23 for cooling a load 35 is itself cooled by passing through the heat exchangers 11 and 21 and before reacting to the lead 35 passes through an expansion valve 33 thus becoming partially liquefied. The return stream from the load 35 to the compressor 23 additionally cools the stream passing to the expansion valve in heat exchangers 29 and 31. The volume flow through the compressor 23 is a minor proportion of the flow through the compressor 1 and the pressure of the stream from the compressor 1 is substantially greater before and after expansion than the stream from the compressor 23 before and after expansion. Operating pressures and temperatures of the system are disclosed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US252359A US3199304A (en) | 1963-01-18 | 1963-01-18 | Methods for producing low temperature refrigeration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1054993A true GB1054993A (en) | 1900-01-01 |
Family
ID=22955694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1054993D Expired GB1054993A (en) | 1963-01-18 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3199304A (en) |
| DE (1) | DE1426924A1 (en) |
| GB (1) | GB1054993A (en) |
| NL (1) | NL6400312A (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3285028A (en) * | 1964-01-06 | 1966-11-15 | Air Prod & Chem | Refrigeration method |
| US3360955A (en) * | 1965-08-23 | 1968-01-02 | Carroll E. Witter | Helium fluid refrigerator |
| FR1526097A (en) * | 1967-03-31 | 1968-05-24 | Air Liquide | Method of maintaining electrical devices at very low temperatures |
| US3520146A (en) * | 1968-07-01 | 1970-07-14 | Carrier Corp | Refrigeration system |
| US3677019A (en) * | 1969-08-01 | 1972-07-18 | Union Carbide Corp | Gas liquefaction process and apparatus |
| DE2242998C2 (en) * | 1972-09-01 | 1974-10-24 | Heinrich 8100 Garmischpartenkirchen Krieger | Process and system for generating cold with an incorporated cascade circuit and a pre-cooling circuit |
| CH592280A5 (en) * | 1975-04-15 | 1977-10-14 | Sulzer Ag | |
| US4267701A (en) * | 1979-11-09 | 1981-05-19 | Helix Technology Corporation | Helium liquefaction plant |
| US4835979A (en) * | 1987-12-18 | 1989-06-06 | Allied-Signal Inc. | Surge control system for a closed cycle cryocooler |
| US5524442A (en) * | 1994-06-27 | 1996-06-11 | Praxair Technology, Inc. | Cooling system employing a primary, high pressure closed refrigeration loop and a secondary refrigeration loop |
| US6484516B1 (en) * | 2001-12-07 | 2002-11-26 | Air Products And Chemicals, Inc. | Method and system for cryogenic refrigeration |
| SE527882C2 (en) * | 2004-11-26 | 2006-07-04 | Foersta Naervaermeverket Ab | Heating system and heating procedure |
| US20100147006A1 (en) * | 2007-06-04 | 2010-06-17 | Taras Michael F | Refrigerant system with cascaded circuits and performance enhancement features |
| US7900467B2 (en) * | 2007-07-23 | 2011-03-08 | Hussmann Corporation | Combined receiver and heat exchanger for a secondary refrigerant |
| IL260159B (en) * | 2018-06-19 | 2022-02-01 | N A M Tech Ltd | Multi cascade cooling system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1088052A (en) * | 1911-05-16 | 1914-02-24 | Emmanuel Felix Aumont | Apparatus for the manufacture of oxygen. |
| GB882211A (en) * | 1958-05-27 | 1961-11-15 | Netzschkau Maschf Nema | Low temperature cold-treatment plant |
-
0
- GB GB1054993D patent/GB1054993A/en not_active Expired
-
1963
- 1963-01-18 US US252359A patent/US3199304A/en not_active Expired - Lifetime
-
1964
- 1964-01-17 NL NL6400312A patent/NL6400312A/xx unknown
- 1964-01-17 DE DE19641426924 patent/DE1426924A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL6400312A (en) | 1964-07-20 |
| US3199304A (en) | 1965-08-10 |
| DE1426924A1 (en) | 1969-02-27 |
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