Flowmeter for a moving packed bed
US4825706A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F5/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for measuring the flow of a packed bed of particles moving in a primary stream comprises positioning a feedpipe having an open end facing downstream in the primary stream and feeding a secondary stream of particles through the feedpipe to satisfy a void that would otherwise be formed downstream of the feedpipe due to the passage of the primary stream of particles. The flow of the primary stream is proportional to the flow of the secondary stream. The flow of the secondary stream can be measured either by measuring the amount of particles being metered into the feedpipe or by connecting a hopper to the feedpipe and measuring the rate at which a level of particles in the hopper falls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.