Flow meter within caustic fluids having non-contaminating body

Details Flow meter within caustic fluids having non-contaminating body Flow meter within caustic fluids having non-contaminating body

G - Physics

01

F

G01F 1/36 (2006.01) G01F 1/44 (2006.01)

Patent

CA 2245867

A non-contaminating flow meter having an isolation member. The flow meter includes two pressure sensor transducers (42, 44), located on opposite sides of a restriction (35) in a conduit. Each of the pressure transducers is isolated by an isolation member (38) from exposure to fluids flowing through the conduit. The flow meter may be placed in line within a fluid flow line carrying corrosive materials. The square root of the difference in pressure between the two pressure sensors is calculated to determine the rate of low within the fluid line. The flow meter compensates for changes in temperature within the fluid flow line and activates an alarm if the pressure of flow rate within the fluid flow line exceeds or falls below a threshold level.

Débitmètre étanche (10) comportant un élément d'isolation (38). Ce débitmètre comporte deux transducteurs (42, 44) de capteurs de pression situés de part et d'autre d'un étranglement (35) dans un conduit. Chacun des transducteurs de pression est isolé par un élément d'isolation (38) d'une exposition aux fluides s'écoulant dans le conduit. Le débitmètre est placé en série dans un conduit d'écoulement de fluide acheminant des matières corrosives. Le débit est déterminé par calcul de la racine carrée de la différence de pression entre les deux capteurs de pression. Le débitmètre compense les variations de températures à l'intérieur du conduit d'écoulement et déclenche une alarme si la pression ou le débit dans le conduit dépasse ou se situe en deçà d'une valeur seuil.

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