Compact vibratory flowmeter for measuring flow...

G - Physics – 01 – F

Patent

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G01F 1/84 (2006.01) G01N 9/00 (2006.01)

Patent

CA 2603096

A compact vibratory flowmeter (200) for measuring flow characteristics of a multi-phase flow material at a flow material pressure of greater than about 10 pounds-per-square-inch (psi) is provided according to an embodiment of the invention. The compact vibratory flowmeter (200) includes one or more flow conduits (301), at least two pickoff sensors (308), and a driver (309). The compact vibratory flowmeter (200) further includes a maximum water drive frequency in the one or more flow conduits (301) that is less than about 250 Hertz (Hz) and an aspect ratio (L/H) of the one or more flow conduits (301) that is greater than about 2.5. A height-to-bore ratio (H/B) of the one or more flow conduits (301) is less than about 10 and a bowed flow conduit geometry includes end bend angles .THETA. of between about 120 degrees and about 170 degrees.

Selon un mode de réalisation de la présente invention, un débitmètre de type vibratoire compact (200) mesure les caractéristiques de débit d~un flux polyphasique pour une pression de flux de plus de 0,7 kilogramme par centimètre carré. Le débitmètre de type vibratoire compact (200) comprend un ou plusieurs conduits de fluide (301), au moins deux capteurs d~écarts (308) et un pilote (309). Le débitmètre de type vibratoire compact (200) comprend de plus une fréquence de déplacement par poussée d~eau dans le ou les conduits de fluide (301) de moins de 205 Hertz (Hz) et un rapport de dimensions (L/H) de l~un ou des conduits de fluide (301) supérieur à environ 2,5. Le rapport hauteur/alésage (H/B) de l~un ou des conduits de fluide (301) est inférieur à environ 10 et une géométrie de conduit de fluide incurvé comprend des angles de coudage d~extrémités compris entre 120 degrés et 170 degrés.

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