Flow rectifier for vortex flowmeter
US4841781A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1987 |
| Grant date | Jun 27, 1989 |
| Priority date | — |
| Expiry date | Dec 4, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F1/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An upstream flow conditioner (rectifier) for a vortex flowmeter. The flow conditioner is constructed with flow rectification vanes placed parallel to the axis of the vortex shedding body at the inlet section of the meter body or between flanges for short meter bodies and insertion meters. The vanes comprise three equally spaced apart flat strips which are inserted in slotted grooves on the inlet side of the meter body or on a plate that can be inserted between flanges. The thickness and the depth of the strips and their distance from the shedding body are optimized to ensure the reproduction of a desired turbulence level and mean fluid velocity profile in the plane perpendicular to the shedding body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.