Method and plant for supplying a variable flow rate of a gas from air
US5941098A · kind A · utility
14Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1997 |
| Grant date | Aug 24, 1999 |
| Priority date | — |
| Expiry date | Dec 12, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25J2290/62
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Up to a certain value (D1) of the demanded flow rate (D), this flow rate is brought to the working pressure and is sent to the consumer pipe. When the demanded flow rate is less than the value (D1), the complement to (D1) is brought to a high pressure, greater than the working pressure, and is sent into a buffer tank. Above the value (D1), the flow rate is supplemented by a flow rate which is drawn from the buffer tank and expanded to the working pressure. The method is useful in supplying oxygen to steel works with electric arc furnaces or to copper refineries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.