Method of and plant for reliquefying gaseous helium
US5829269A · kind A · utility
4Cited by
5References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 21, 1997 |
| Grant date | Nov 3, 1998 |
| Priority date | — |
| Expiry date | Jul 21, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2290/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method of reliquefying gaseous helium produced when transferring liquid helium from a donor container (R1) to a receiver container (R2), characterized in that a stream of gaseous helium is bled off from a point in a compression unit (10) intended for charging with gaseous helium under pressure, this stream of gaseous helium is cooled by heat exchange with the gaseous helium intended for the compression unit (10) and the compressed gaseous helium thus cooled is expanded in order to obtain reliquefied helium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.