Control method for steady and efficient operation of ship chamber of hydraulic ship lift in go-out-of-water and go-into-water processes

Abstract

The invention relates to a control method for steady operation of a ship chamber of a hydraulic ship lift in the go-out-of-water and go-into-water processes. Specifically, by controlling the open degree of a water conveying valve to adjust the flow of a water conveying system, speed control is conducted on key nodes in the go-out-of-water and go-into-water processes of the ship chamber, accordingly, the go-out-of-water and go-into-water speeds of the ship chamber are controlled, it is guaranteed that various indexes such as the inclination quantity of the ship chamber, go-out-of-water adsorption force, go-into-water panting force and the torque of a synchronizing shaft are within the safe ranges, and the operation efficiency of the ship lift is improved to the maximum extent. Through verification of engineering practice, steady and efficient operation of the ship chamber of the hydraulic ship lift in the go-out-of-water and go-into-water processes is fully guaranteed.

Description

technical field [0001] The invention belongs to the field of navigable hydraulics, and relates to a control method for the stable and efficient operation of water in and out of the cabin of a hydraulic ship lift. The flow rate of the system realizes the speed control of the key parts of the ship's exit and entry to the water, ensuring that the inclination of the ship's compartment, the adsorption force of the water outlet, the slapping force of the water entry, and the torque of the synchronous shaft are all within the safe range. The control method proposed by the invention is guaranteed. The safe and stable operation of the ship lift ensures the operating efficiency of the ship lift. Background technique [0002] According to different operating principles, ship lifts can be divided into three types: vertical, inclined plane and water slope. Vertical ship lifts are the mainstream of development, especially in my country, the large and medium-sized ship lifts under constru...

AI Technical Summary

Problems solved by technology

[0005] 1) The working gate of the lower gate needs to be adjusted according to the change of the water level. When the downstream water level varies by more than 10m, the civil structure of the lower gate and the arrangement of the working gate are relatively complicated and difficult to operate;

[0006] 2) Due to the large amplitude and rapid rate of change of the downstream water level, it is not easy to achieve accurate docking of the ship compartment with the approach channel

Tests have shown that during the process of getting out and entering the water, some key parts will cause sudden changes in the inclination and torque of the ship when some key parts touch the water surface. Therefore, the running speed of the ship must be controlled. Although it can meet the safety requirements of the ship lift, it also affects the operating efficiency of the ship lift

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