High-lift lock integrated plane valve

Abstract

The invention discloses a high-lift lock integrated plane valve. A positive side, a negative side and a bottom edge of the plane valve are closed by steel plates, and when the valve is opened, the negative side of the valve and a lintel form a fixed gap; the plane valve adopts a variable section, in other words, the structure of the positive side of the valve is thick in the middle and thin on two sides, and the two sides incline inwards to form acute angles with a vertical plane; and the bottom edge of the plane valve adopts an acute edge and trends to the upstream to form an acute angle with a horizontal plane. The structure of a valve body is beneficial for smoothness of natural ventilation of the lintel and stability of ventilation volume, cavitation of a valve groove is avoided, deformation of the valve is reduced, the plane valve is far away from a water current excitation frequency domain, valve opening force and pulsation thereof are remarkably reduced, and the bottom edge is less prone to separatory cavitation.

Description

technical field [0001] The invention relates to a gate body structure of a water delivery valve, in particular to an integrated planar valve of a high water head ship lock. Background technique [0002] The ship lock water delivery valve is a valve installed on the water delivery orifice in the ship lock water delivery corridor to control irrigation and discharge. As the throat of the ship lock water delivery system, the working conditions of the water delivery valve directly affect the safety and security of the water delivery system. The ship's lock time and whether the entire ship lock can work stably. At present, there are two types of water delivery valves at home and abroad, arc valves and plane valves. In the prior art, the gate body structure of the planar water delivery valve is a planar gate with equal cross-section, the back surface of the valve is arranged with beams, and the bottom edge of the valve is sharp and inclined downstream. A large number of model test...

AI Technical Summary

Problems solved by technology

[0003] ⑴The back surface of the valve is arranged with a beam grid. During the opening process of the valve, the back water surface and the lintel cannot form a fixed gap, and the natural ventilation of the lintel is not smooth, and even the lintel cannot be naturally ventilated;

[0004] (2) The back surface of the valve is arranged in a beam lattice, the rigidity of the valve itself is not enough, and the deformation of the valve is relatively large;

[0005] (3) The back surface of the valve is arranged in a beam grid, and the natural vibration frequency of the valve is low, which is easy to coincide with the frequency domain of the water flow excitation, and resonance may be formed in the prototype;

[0006] ⑷The back water surface of the valve is arranged with beams, and the door body beams on the back water surface of the door are obviously affected by turbulent water flow, and the valve opening force and its pulsation are relatively large;

[0007] ⑸The bottom edge of the valve adopts a sharp edge and tends to the downstream, the water flow through the bottom edge is not smooth, and the water flow is prone to separate cavitation

[0008] It can be seen that the existing planar water delivery valve body structure needs to be improved.

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