Precise lifting hydraulic control system and hinge movable dam

Abstract

The invention relates to the technical field of driving of hinge movable dams, in particular to a precise lifting hydraulic control system and a hinge movable dam. The precise lifting hydraulic control system comprises a liquid storage tank, a hydraulic pump, a hydraulic cylinder, a liquid inlet pipeline, a liquid return pipeline, a first valve, a second valve and a flow sensor; an inlet of the hydraulic pump communicates with the liquid storage tank; an outlet of the hydraulic pump communicates with an inlet of the hydraulic cylinder through the liquid inlet pipeline; an outlet of the hydraulic cylinder communicates with the liquid storage tank through the liquid return pipeline; the first valve and the second valve are respectively arranged on the liquid inlet pipeline and the liquid return pipeline; at least one of the liquid inlet pipeline and the liquid return pipeline is provided with the flow sensor; and the flow sensor is used for detecting the quantity of liquid flowing through the liquid inlet pipeline or the liquid return pipeline to calculate the lifting height of a dam body connected with a piston rod, so that the control precision of the lifting height of the dam body is improved, and the precise control of water impoundment and height adjustment under the condition of no cable arranged in a river channel is realized.

Description

technical field [0001] The present application relates to the technical field of hinge movable dam driving, in particular to a precise lifting hydraulic control system and a hinge movable dam. Background technique [0002] In recent years, due to the advantages of convenient operation, flexible lifting, and good landscape effects, the hinge movable dam has been widely used in water conservancy projects to realize functions such as flood control, water supply, irrigation, and hydropower generation. [0003] At present, the hinge movable dam usually includes a hydraulic cylinder and a dam body, and the hydraulic cylinder is controlled to expand and contract to drive the dam body to rise and fall. However, due to the complex water conditions in the river, the sensor devices and electrical equipment installed on the hydraulic cylinders and dams to detect their own strokes or angles are mostly located underwater, resulting in high production and installation costs and difficultie...

AI Technical Summary

Problems solved by technology

However, due to the complex water conditions in the river, the sensor devices and electrical equipment installed on the hydraulic cylinders and dams to detect their own strokes or angles are mostly located underwater, resulting in high production and installation costs and difficulties in later equipment maintenance. Therefore, At present, the usual method is to measure the lifting height of the dam body by manual visual inspection, but the height measurement accuracy of this method is low, and the randomness is large, which is easy to cause large deviations in the water storage level on the river channel, and the water level adjustment needs to be repeated. For longer dams, the lifting efficiency will be reduced, which will easily cause waste of water and increase energy consumption, and the wrong operation during the adjustment process will even threaten the safety of the downstream

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