Double control device of quick exhaust device of preaction system

Abstract

The application relates to a double-control device of a quick exhaust device of a preaction system, which comprises a module control loop and a manual control loop. The module control loop and the manual control loop are independently arranged at control ends and feedback ends, and are respectively electrically connected with electric valves of the quick exhaust valve to realize independent opening and closing control. In this way, independent opening and closing control of the electric valve can be realized, mutual interference can be avoided, the double-control requirement of the fire-fighting specification can be met, and the effect of improving system safety and function is achieved. This is because independent arrangement makes the two control modes not affect each other, when one control mode fails, the other can still work normally, and the reliability of the system is ensured. The feedback signal of the module control loop is transmitted to a fire-fighting linkage controller through a first signal path, and the feedback signal of the manual control loop is transmitted to the fire-fighting linkage controller through a second signal path. In this way, the fire-fighting linkage controller can acquire the working state of the electric valve under the two control modes in real time.

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