Fluid metering apparatus and method

G - Physics – 01 – F

Patent

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Details

G01F 13/00 (2006.01) G01F 1/34 (2006.01) G05D 7/06 (2006.01) G05D 16/20 (2006.01)

Patent

CA 2237057

An apparatus and method for metering fluid flow is disclosed. A fluid dispensing unit (30) is coupled between a supply pipe (28) and a demand pipe (32), and dispenses fluid received from the supply pipe (28) to the demand pipe (32). The demand pipe (32) is coupled to one or more fluid-expending appliances. The pressure of the fluid in the demand pipe (32) is monitored by a fluid information unit (34). The fluid information unit (34) and fluid dispensing unit (30) cooperate to maintain the fluid flowing through the demand pipe (32) at a substantially constant demand fluid pressure by monitoring fluid flowing through the demand pipe (32) and actively dispensing fluid received from the supply pipe (28) into the demand pipe (32) to maintain the demand fluid pressure at a pre-established demand pressure level. The fluid information unit (34) and fluid dispensing unit (30) also cooperate to meter or measure the volume of fluid dispensed through the fluid dispensing unit (30).

Appareil et procédé de mesure de débit de fluide. Une unité de distribution de fluide (30) est raccordée entre une tuyauterie d'alimentation (28) et une tuyauterie de consommation (32), et amène un fluide arrivant depuis la tuyauterie d'alimentation (28) jusqu'à la tuyauterie de consommation (32). La tuyauterie de consommation (32) est couplée à un ou plusieurs appareils consommant du fluide. La pression du fluide dans la tuyauterie de consommation (32) est contrôlée par une unité d'information sur le fluide (34). L'unité d'information sur le fluide (34) et l'unité de distribution de fluide (30) coopèrent pour maintenir le fluide s'écoulant dans la tuyauterie de consommation (32) sous une pression de fluide de consommation sensiblement constante, en contrôlant l'écoulement du fluide dans la tuyauterie de consommation (32) et en amenant activement le fluide arrivant de la tuyauterie d'alimentation dans la tuyauterie de consommation (32) pour maintenir la pression du fluide de consommation à un niveau de pression de consommation préétabli. L'unité d'information sur le fluide (34) et l'unité de distribution de fluide (30) coopèrent également pour mesurer le volume de fluide distribué par l'unité de distribution de fluide (30).

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