Eddy fluid meter

G - Physics – 01 – F

Patent

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Details

G01F 1/32 (2006.01)

Patent

CA 2186022

A vortex flowmeter (1) including a fluid flow duct section (2) having a constant internal diameter; at least two generally elongate obstructions arranged in the middle of the fluid flow in said duct section (2), each obstruction being perpendicular to the fluid flow direction in its longitudinal and transverse directions, and capable of generating oscillating fluid vortices, and the first, upstream obstruction (4) having a substantially uniform trapezoidal cross-section while the other, downstream obstruction (6) has a generally T-shaped cross-section; as well as an assembly (10, 12, 14) for sensing a vortex oscillation signal and deducing a fluid volume or flow rate therefrom.

La présente invention a pour objet un compteur de fluide à tourbillons (1) comprenant une portion de conduite (2) de diamètre intérieur constant dans laquelle s'écoule le fluide, au moins deux obstacles disposés au milieu de l'écoulement du fluide dans ladite portion de conduite (2) ayant chacun une forme générale allongée de dimensions longitudinales et transversales perpendiculaires à la direction d'écoulement du fluide et aptes à générer des tourbillons de fluide oscillants, l'un dit amont (4) ayant une section transversale de forme trapézoïdale sensiblement uniforme et l'autre dit aval (6) ayant une section transversale en forme générale de T, ainsi que des moyens (10, 12, 14) pour détecter le signal correspondant aux oscillations desdits tourbillons et pour en déduire un volume ou un débit de fluide.

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