Emergency shutdown system

Details Emergency shutdown system Emergency shutdown system

G - Physics

05

B

G05B 9/02 (2006.01) F16K 17/00 (2006.01) F16K 37/00 (2006.01)

Patent

CA 2615167

An emergency shutdown system includes an emergency shutdown valve, a control line to carry a signal determinative of positioning of the emergency shutdown valve, a solenoid assembly coupled to the control line to effectuate the positioning of the emergency shutdown valve, and a junction device coupled to the control line and the solenoid assembly. In some embodiments, the junction device includes a switch, such as a relay, responsive to the signal to control whether the solenoid assembly is coupled to the control line and, therefore, energized.

L'invention concerne un système d'arrêt d'urgence qui comprend une soupape d'arrêt d'urgence, une ligne de commande qui transporte le signal déterminant la position de ladite soupape, un ensemble solénoïde couplé à la ligne de commande pour positionner la soupape d'arrêt d'urgence et un dispositif de jonction, couplé à la ligne de commande et à l'ensemble solénoïde. Dans certaines formes de réalisation, le dispositif de jonction comprend un commutateur tel qu'un relais, sensible au signal et qui contrôle si l'ensemble solénoïde est couplé la ligne de commande, et par conséquent mis sous tension.

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