Two-phase steam measurement system

G - Physics – 01 – F

Patent

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Details

G01F 1/84 (2006.01)

Patent

CA 2524512

A steam measurement system includes a Coriolis flowmeter (440, 540, 640) associated with a vibratable flowtube (410, 510, 610) to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device (440, 540, 640) receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals (700). The computing device also may calculate the total heat energy flow rate of the flow (800). Other implementations may include a full or partial separator (920) to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow, and a second Coriolis meter (960a, 960b).

L'invention concerne un système de mesure de la vapeur, qui comprend un débitmètre à effet de Coriolis (440, 540, 640) associé à un tube d'écoulement vibrant (410, 510, 610) pour recevoir un débit de vapeur humide. Un premier capteur est associé au tube d'écoulement pour relayer, au moyen d'un premier signal du capteur, une information concernant un mouvement du tube d'écoulement. Un second capteur détermine une propriété de l'écoulement et la transmet au moyen d'un second signal du capteur. Un dispositif de calcul (440, 540, 640) reçoit le premier et le second signaux du capteur et est configuré pour calculer un titre en vapeur de l'écoulement sur la base desdits signaux (700). Le dispositif de calcul peut également calculer le débit d'énergie thermique total de l'écoulement (800). D'autres applications peuvent comprendre un séparateur complet ou partiel (920) pour séparer l'écoulement de vapeur humide en un débit gazeux substantiel et un débit liquide substantiel; et un second débitmètre à effet de Coriolis (960a, 960b).

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