Water supply system

G - Physics – 05 – D

Patent

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Details

G05D 16/20 (2006.01)

Patent

CA 2469838

A water supply system comprising a supply line (20) and a network of consumers (36,40), one of which being a monitored consumer (40) who receives the least amount of pressure, a pressure regulation system (30) comprising a pressure reducing valve (PRV) (26) associated with a pilot (86) preset to a nominal output pressure and a pressure control system comprising a differential control valve (DCV) (90). A pickup unit (100) is provided for measuring a flow parameter indicative of the pressure at the monitored consumer and emitting a pressure signal (PS) to a controller (108) generating in turn a control signal (CS) responsive to the pressure signal to activate an actuator (92) of the DCV thereby governing the flow rate through the DCV, so as to obtain desired pressure at the monitored consumer, regardless of altering flow rate through the PRV.

L'invention concerne un système d'amenée d'eau comprenant une conduite d'amenée et un réseau de consommateurs, l'un d'entre eux étant un consommateur surveillé recevant la plus faible quantité de pression, un système de régulation de pression comprenant un robinet réducteur de pression (PRV) associé à un robinet pilote préréglé sur une pression de sortie nominale, et un système de commande de pression comprenant un robinet de commande différentielle (DVC). Une unité de mesure permet de mesurer un paramètre d'écoulement indiquant la pression au niveau du consommateur surveillé, et d'émettre un signal de pression vers un dispositif de commande générant à son tour un signal de commande en réaction au signal de pression pour activer un actionneur du DVC, ce qui permet de réguler le débit à travers le DVC, de sorte à obtenir la pression voulue au niveau du consommateur surveillé, sans tenir compte de modifications de débit à travers le PRV.

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