Fluid regulatory systems and processes

F - Mech Eng,Light,Heat,Weapons – 16 – K

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F16K 37/00 (2006.01)

Patent

CA 2675021

Fluid regulatory systems (100, 300) may provide diagnostic functions during shut-down procedures. In one aspect, a fluid regulatory system (100) may include a valve positioning system (110, 310). The valve positioning system (110) may include components such as a controller (111, 311) and an electric-to-pressure converter (112, 313). The controller may receive a command signal (130, 340), modify the command signal, adjust a control signal to the electric-to-pressure converter (112, 313) based on the command signal (130, 340), and/or monitor components while closing the valve (120, 330). The valve positioning system (110, 310) may have a probability of failure on demand of less than 10-3.

L'invention concerne des systèmes de régulation de fluides (100, 300) qui peuvent fournir des fonctions de diagnostic au cours de procédures d'arrêt. Dans un aspect, un système de régulation de fluides (100) peut comprendre un système de positionnement de soupape (110, 310). Ce système de positionnement de soupape (110) peut comprendre des composants tels qu'un dispositif de contrôle (111, 311) et un convertisseur de signaux électriques en pression (112, 313). Le dispositif de contrôle peut recevoir un signal de commande (130, 340), modifier ce signal de commande, régler un signal de contrôle relativement au convertisseur de signaux électriques en pression (112, 313) d'après le signal de commande (130, 340) et/ou surveiller des composants lors de la fermeture de la soupape (120, 330). Le système de positionnement de soupape (110, 310) peut présenter une probabilité de défaillance à la sollicitation inférieure à 10-3.

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