Hydraulic control system and hinge dam assembly

Abstract

The invention relates to a hydraulic control system and a hinge dam assembly. The hydraulic control system comprises a first branch circuit which comprises a flow-distributing synchronous valve. The flow-distributing synchronous valve comprises a cavity, a rotary shaft arranged in the cavity rotatably and a plurality of rotors arranged on the rotary shaft; the rotors are axially distributed in a spaced manner along the rotary shaft and rotate synchronously along with the rotary shaft, the flow-distributing synchronous valve is provided with a first opening and a plurality of second openings where media circulate and which communicate to the cavity, the second openings communicate to hydraulic cylinders one by one, and the rotors and the second openings are formed correspondingly one by one; when the rotors separately convey the media from the first opening to the second openings, the hydraulic cylinders generate first strokes; in the first strokes, the hydraulic cylinders drive hinge dams to ascend synchronously; and when the rotors convey the media from the second openings to the first opening, the hydraulic cylinders generate second strokes; and in the first strokes, the hydraulic cylinders drive hinge dams to ascend synchronously.

Description

technical field [0001] The present application relates to the technical field of movable dams, in particular to a hydraulic control system and a hinge dam assembly. Background technique [0002] Hinge dam is a new type of movable sluice. It is mainly composed of dam surface, hydraulic rod, hydraulic cylinder and hydraulic pump station. The dam surface is connected with the foundation connecting plate fixed on the foundation of the river bank. The way is to use the hydraulic cylinder to straighten the back of the dam surface with the bottom as the axis of the movable water-retaining dam, so as to realize the purpose of raising the dam to stop the water and lowering the dam to discharge the flood. [0003] Multiple hinge dams can be set in the river channel. When all the hinge dams are raised, the flow in the river channel is the largest. When only a few hinge dams are raised, the flow control in the river channel can be realized. So as to achieve the purpose of throttling. ...

AI Technical Summary

Problems solved by technology

[0004] There are often a lot of floating objects on the water surface in the river. When the single leaf hinge dam is raised, the floating objects are easily stuck between the two hinge dams, which will cause unsafe factors for the operation of the hinge dam.

At the same time, since the shape of the cross-section of the river channel is trapezoidal and the flow velocity of the water is relatively large, the impact force produced by the water in the river channel on each hinge dam is also different, which makes the loads borne by each hydraulic cylinder different.

[0005] In the related technology, the simultaneous lifting and lowering of each hinge dam is controlled by installing a diversion and confluence valve in the hydraulic control circuit. However, when a diversion and confluence valve is used, although the diversion and confluence valve can enforce a diversion of the flow of the hydraulic pump, The liquid flow is evenly distributed to each hydraulic cylinder. However, when the loads borne by the hydraulic cylinders are different, the diversion and flow valve cannot control the synchronous action of each hydraulic cylinder, and thus the synchronous lifting of each dam surface cannot be achieved.

Images