Flow measurement system
US5608170A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1994 |
| Grant date | Mar 4, 1997 |
| Priority date | — |
| Expiry date | Nov 16, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N9/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for measuring multiphase fluid flows comprising first and second sections each comprising a flow passage having means for making a dynamic pressure measurement on the multiphase fluid flow therethrough, the geometry of the first and second sections differing so as to affect a relationship between void fraction and velocity for the phases in a known manner. The difference in geometry between the two sections can be in the area of the flow passages or in the direction of flow relation to gravity. A method of measuring multiphase flows comprising the steps of: PA1 a) directing the flow through a first flow passage including means for making a dynamic pressure measurement; PA1 b) measuring a pressure drop across said means; PA1 c) directing the flow through a second flow passage including means for making a dynamic pressure measurement; PA1 d) measuring a pressure drop across said means; and PA1 e) calculating the composition and flow rates of the phases from the measured pressure drops. The method optionally includes the further steps of directing the flow through a pair of passages and PA1 f) intermittently isolating one or other of said pair of passages to prevent flow the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.