Cut-off protection system and cut-off operation method of multi-stage ship lock water delivery valve

Abstract

A cutting protection system for a multi-stage ship lock water delivery valve and its cutting operation method, including a centralized control system, a local electrical control system and a local hydraulic control system, the local hydraulic control system includes an isolation ball valve, and the cutting protection system also includes a stroke The switch and the travel switch are used to detect the travel position of the isolation ball valve. The travel switch is electrically connected to the local electrical control system and the valve closing relay respectively, and the valve closing relay is electrically connected to the local electrical control system. The ship lock does not need to stop sailing, which increases the number of ships passing the lock when the water delivery valve is overhauled, relatively improves the passing capacity of the ship lock, and ensures the safe operation of the ship lock's hydraulic structures and mechanical equipment.

Description

technical field [0001] The invention belongs to the field of ship lock control systems, and in particular relates to a cutting protection system for multi-stage ship lock water delivery valves and a cutting operation method thereof. Background technique [0002] The water delivery valve is affected by external factors such as hydraulic impact of the ship lock water delivery corridor, foreign matter jamming and wear, river water corrosion, cavitation and acoustic shock, as well as wear caused by long-term operation, so that the water stop of the water delivery valve and the boom will be affected to varying degrees. Therefore, regular maintenance of the water delivery valve is required. The installation diagram of the water delivery valve is as follows: image 3 As shown, the flat plate maintenance valve (Chinese patent document CN208844512U has disclosed) is a valve that utilizes the continuous water seal installed around the door leaf to cooperate with the gate groove around...

AI Technical Summary

Problems solved by technology

[0004] At present, when multi-level continuous ship locks are in operation, the way of passing through the locks is generally adopted step by step. The first locks and valves of each lock are operated according to the established procedures. If one of the first locks fails to operate due to equipment failure and other reasons, the entire line of ship locks will be suspended.

However, the number of multi-stage ship lock water delivery valves is large. If the method of stopping the ship for maintenance is adopted, it will lead to an increase in the maintenance period and the time of stopping the ship.

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