| 摘要 |
System for operating and controlling valves (1) intended to control an electro-hydraulic system on board a vessel, each valve (1) comprising at least one actuating unit (11) for regulating the operation thereof. The system comprising at least two power units (21, 31), of which a first power unit (21) and a second power unit (31), which power units (21, 31) are connected to the actuating units (11) of each valve (1). The first power unit (21) and the actuating units (11) are connected through a series connection, namely there being provided a single transmission line (4) intended to connect in series the first power unit (21) to said actuating units (11), which transmission line (4) is intended to transmit at least the power signal. The second power unit (31) and the actuating units (11) being connected through a series connection, namely there being provided a single transmission line (4) intended to connect in series the second power unit (31) to said actuating units (11), which transmission line (4) is intended to transmit at least the power signal. The first power unit (21) and the second power unit (31) being placed at the ends of the transmission line (4), there being provided breaking members (111,112, 113, 114, 115, 116, 117, 118, 121, 131) for the transmission line (4) between each actuating unit (11) and the following one, as well as between the first power unit (21) and the actuating unit (11) directly connected thereto and between the second power unit (31) and the actuating unit (11) directly connected thereto, such that each actuating unit (11) provides an input breaking member and an output breaking member. Moreover each breaking member (111, 112, 113, 114,115, 116, 117, 118, 121, 131) is intended to open or close said transmission line (4) and the first power unit (21) being directly connected to the second power unit (31). |
