Method and apparatus to control the rate of flow of a fluid...

Details Method and apparatus to control the rate of flow of a fluid... Method and apparatus to control the rate of flow of a fluid...

G - Physics

05

D

G05D 7/00 (2006.01) E21B 21/08 (2006.01) E21B 43/12 (2006.01) F04B 49/22 (2006.01) G05D 7/06 (2006.01)

Patent

CA 2450994

An apparatus to control the rate of flow of a stream of pressurized fluid through a conduit. The apparatus comprises a flow measurement device operatively connected to the conduit, a flow control device operatively connected to the conduit, and a controller operatively connected to the flow control device. The flow measurement device generates an output signal proportionate to the rate of flow of fluid therethrough. The flow control device includes an adjustable orifice wherein upon the opening of the orifice a portion of the stream of pressurized fluid is independently released from the conduit by the flow control device. The controller receives the output signal generated by the flow measurement device and causes the adjustable orifice in the flow control device to open or close as necessary to maintain the flow of pressurized fluid as measured by the flow measurement device within pre-determined limits.

Appareil destiné à commander le débit d'un fluide pressurisé dans une conduite. L'appareil comprend un dispositif de mesure de débit (le « débitmètre ») et un dispositif de régulation de débit (le « régulateur ») raccordés sur le plan fonctionnel à la conduite, ainsi qu'un dispositif de contrôle raccordé sur le plan fonctionnel au régulateur. Le débitmètre génère un signal de sortie proportionnel au débit du fluide qui le traverse. Du fait de l'orifice réglable dont il est doté, le régulateur dérive une partie du fluide circulant dans la conduite. Le dispositif de contrôle capte le signal de sortie émis par le débitmètre et entraîne le réglage de l'ouverture de l'orifice, de façon à maintenir le débit mesuré entre des limites prédéterminées.

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