Coriolis flowmeter for large mass flows with reduced dimensions

Details Coriolis flowmeter for large mass flows with reduced dimensions Coriolis flowmeter for large mass flows with reduced dimensions

G - Physics

01

F

G01F 1/84 (2006.01)

Patent

CA 2356284

A Coriolis flowmeter sensor (5) capable of handling large mass flow rates and having a reduced flag dimension. In order to have a reduced flag dimension, the flow tubes (103A-103B) are formed to have a substantially semicircular arc (150) between an inlet and an outlet. Brace bars (120-121) connected to the flow tube proximate, the inlet and outlet, separate the frequencies of vibration in the flow tubes. Pick-off sensors (105-105') are positioned upon the substantially semicircular arc (150) of the flow tube at a position that allow the sensors to maximize detection of low amplitude, high frequency vibrations of the flow tubes (103A-103B)required to have a reduced flag dimension.

La présente invention concerne un capteur débitmètre Coriolis (5) capable de traiter des débits massiques importants et d'encombrement réduit. De manière à obtenir un encombrement réduit, les tubes d'écoulement (103A-103B) sont conçus de façon à former un arc sensiblement semi-circulaire (150) entre une entré et une sortie. Des barres (120-121), placées à proximité de l'entrée et de la sortie, bridant les tubes d'écoulement, permettent de séparer les fréquences de vibration dans les tubes d'écoulement. Des capteurs de détection (105-105') sont placés sur l'arc sensiblement semi-circulaire (150) des tubes d'écoulement à un emplacement qui leur permet de maximiser la détection de vibrations à haute fréquence et d'amplitude faible des tubes d'écoulement (103A-103B), nécessaires au dimensionnement réduit.

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