GB947941A - Evacuation of vacuum-insulated vessels - Google Patents
Evacuation of vacuum-insulated vesselsInfo
- Publication number
- GB947941A GB947941A GB4142161A GB4142161A GB947941A GB 947941 A GB947941 A GB 947941A GB 4142161 A GB4142161 A GB 4142161A GB 4142161 A GB4142161 A GB 4142161A GB 947941 A GB947941 A GB 947941A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- absorbent
- vacuum space
- gas
- temperature
- 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
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/001—Thermal insulation specially adapted for cryogenic vessels
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
947,941. Obtaining high vacua. BRITISH OXYGEN CO. Ltd. Dec. 7, 1962 [Nov. 20, 1961], No. 41421/61. Heading F1N. A method of evacuating a vacuum space of a vessel for the storage or transport of a liquefied gas the boiling point of which is substantially below atmospheric temperature, comprises mechanically pumping gas from the vacuum space until the gas pressure therein has fallen to about 10 m.m. of mercury, disconnecting the pump and connecting the vacuum space to a vessel containing absorbent cooled to a low temperature, until the pressure has fallen to the desired value, e.g. 50 microns, and thereafter disconnecting the vessel containing the absorbent. The latter is preferably silica gel but may be alumina, various zeolites or charcoal, and is preferably cooled to a temperature of about 77‹K. by liquid nitrogen. The absorbent may be regenerated by allowing the vessel containing it to warm up to ambient temperature and removing the desorbed gases by mechanical pumping. Alternatively, the absorbent may be removed from its vessel and allowed to warm up, the vessel remaining at the low temperature. The vacuum space may be filled with powder. A plurality of gas-storage vessels may be connected to a common mechanical pump and a common absorbent vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4142161A GB947941A (en) | 1961-11-20 | 1961-11-20 | Evacuation of vacuum-insulated vessels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4142161A GB947941A (en) | 1961-11-20 | 1961-11-20 | Evacuation of vacuum-insulated vessels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB947941A true GB947941A (en) | 1964-01-29 |
Family
ID=10419606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4142161A Expired GB947941A (en) | 1961-11-20 | 1961-11-20 | Evacuation of vacuum-insulated vessels |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB947941A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176187A (en) * | 1989-06-27 | 1993-01-05 | Ashland Oil, Inc. | Flexible gas salvage containers and process for use |
-
1961
- 1961-11-20 GB GB4142161A patent/GB947941A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5176187A (en) * | 1989-06-27 | 1993-01-05 | Ashland Oil, Inc. | Flexible gas salvage containers and process for use |
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