Differential static pressure measuring device

G - Physics – 01 – L

Patent

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Details

G01L 13/02 (2006.01) G01F 1/46 (2006.01)

Patent

CA 2491261

A differential static pressure measuring or activating device measuring fluid flow through a duct including two pitot tubes each including a proximal end connected to a valve, a distal end portion located in the duct extending generally parallel to each other and perpendicular to the air flow through the duct having open distal ends and a plate located between the distal end portions of the tubes creating a differential static pressure between the open ends of the tubes. The open distal ends of the tubes incline toward the plate such that the open ends face toward and away from the direction of the gas flow through the duct.

L'invention concerne un dispositif d'activation ou de mesure de la pression statique différentielle, servant à mesurer l'écoulement fluide à travers une conduite. Le dispositif selon l'invention comprend deux tubes de Pitot ayant chacun une extrémité proximale raccordée à une vanne, une partie terminale distale située dans la conduite, les parties terminales distales étant généralement parallèles entre elles et perpendiculaires au flux d'air à travers la conduite et présentant des extrémités distales ouvertes, ainsi qu'une plaque située entre les deux parties terminales distales des tubes et créant une pression statique différentielle entre les extrémités ouvertes des tubes. Les extrémités distales ouvertes des tubes s'inclinent en direction de la plaque, de sorte qu'elles se trouvent en face et à l'opposé du sens du flux gazeux à travers la conduite.

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