Continuous liquid flow system

G - Physics – 05 – D

Patent

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Details

G05D 7/00 (2006.01) A61L 2/20 (2006.01) A61L 2/24 (2006.01) G01F 1/00 (2006.01) G01F 23/20 (2006.01) G01F 25/00 (2006.01) G01G 17/04 (2006.01) G01G 17/06 (2006.01) G05D 7/06 (2006.01) G05D 9/12 (2006.01)

Patent

CA 2403773

The disclosure relates to a system for continuous delivery of a measured flow of liquid to a processing apparatus comprising a reservoir (10) for holding a bulk supply of the liquid and an intermediate vessel (12). A first pump delivers liquid form the intermediate vessel to processing equipment at one rate. A second pump (13) delivers liquid from the reservoir to the intermediate vessel of a second much faster rate. A monitor device (14) continuously monitors the weight of the vessel and controls the first pump accordingly to deliver the required weight of liquid at the required rate to the processing equipment. The monitoring device determines when the weight of liquid in the intermediate vessel has reached a minimum position to initiate operation of the second pump (13) to refill the vessel and a further device terminates operation of the second means when the liquid level in the vessel reaches a maximum position.

L'invention concerne un système d'apport en continu d'un écoulement mesuré de liquide, en direction d'un appareil de traitement comprenant un réservoir (10) destiné à contenir une réserve en vrac du liquide, ainsi qu'une cuve intermédiaire (12). Une première pompe fournit le liquide, à partir de la cuve intermédiaire, à un matériel de traitement, à un certain débit. Une seconde pompe (13) fournit le liquide, à partir du réservoir, à la cuve intermédiaire, à un second débit beaucoup plus rapide. Un dispositif de surveillance (14) surveille en continu le poids de la cuve et commande, en conséquence, l'apport au matériel de traitement, par la première pompe, du poids voulu de liquide et au débit requis. Le dispositif de surveillance détermine quand le poids du liquide présent dans la cuve intermédiaire atteint une position minimale, de manière à déclencher le fonctionnement de la seconde pompe (13), aux fins de remplissage de la cuve, un autre dispositif achevant l'opération commencée par les seconds moyens lorsque le niveau de liquide dans la cuve atteint une position maximale.

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