Coriolis flowmeter with reduced dimensions

Details Coriolis flowmeter with reduced dimensions Coriolis flowmeter with reduced dimensions

G - Physics

01

F

G01F 1/84 (2006.01)

Patent

CA 2366700

A Coriolis flowmeter sensor (10) having a reduced flag dimension. Flag dimension is the length that a flow tube loop extends outward from a pipeline. In order to have a reduced flag dimension, the entire length of the flow tubes (103A-103B) must vibrate to make the flowmeter sensor (10) more sensitive to Coriolis effects. When the entire length of the flow tubes vibrates, a first set of brace bars (122-123) connected to the flow tube separates the frequencies of vibration in the flow tubes (103A-103B). A second set of brace bars (120-121) connected to the flow tubes enhances the zero stability of the flowmeter.

L'invention porte sur un détecteur (10) de débimètre-masse à effet Coriolis à saillant réduit. Pour réduire le saillant (c.-à-d. la longueur dont la boucle des tubes d'écoulement dépasse du pipeline), il est nécessaire que la totalité de la longueur des tubes (103A-103B) d'écoulement du détecteur entre en vibration pour rendre le détecteur plus sensible à la force de Coriolis. Quand la totalité de la longueur vibre, un premier ensemble de brides (122-123) de maintien est monté sur les tubes de manière à en (103A-103B) séparer les fréquences de vibration. Un deuxième ensemble de brides (120-121) de maintien monté sur les tubes d'écoulement renforce la stabilité du zéro du débitmètre.

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