Technique for measurement of gas and liquid flow velocities, and liquid holdup in a pipe with stratified flow
US6550345B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 11, 2000 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Sep 11, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F23/2962
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic flowmeter is disclosed that detects the speed, amount, and composition of a two-phase flow travelling through it. One or more ultrasonic paths corresponding to ultrasonic transducers are positioned to detect the velocity and speed of sound through one phase of the two-phase flow. A second ultrasonic path is positioned to travel through the one phase of the two-phase flow, but to reflect off the interface between of interface of the two phases. A third ultrasonic path is positioned to travel through the second phase of the two-phase flow, but once again reflects off the interface between the two phases. The information of transit times for ultrasonic signals along these ultrasonic paths provides the speed of the two-phase flows, the amount of the two-phase flows, and the compositions of the two-phase flows. A quality assurance check ensures that the measurements are accurate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.