A full-lock-chamber water delivery system that can adapt to large-scale high-head ship locks

Abstract

The invention discloses an all-lock chamber water conveyance system capable of adapting to a large-scale high head ship lock. The all-lock chamber water conveyance system comprises a lock chamber, main galleries at two sides, a first diversion port, a middle branch gallery, second diversion ports, a water outlet branch gallery and an energy dissipation cover plate, wherein the first diversion port is positioned in the middle of the lock chamber, comprises two inlets and two outlets, and adopts a three-dimensional diversion model; the second diversion ports are positioned on parts at 1 / 4 and 3 / 4 of the length of the lock chamber; each second diversion port comprises an inlet and four outlets, and adopts a large-cavity self-diversion structure; the vertical surfaces of the branch galleries are trapezoidal; when water is positively filled, a flow direction of water flow is reduced along the way; water outlets are uniformly distributed in the tops of branch galleries; and the energy dissipation cover plate is adopted on the tops of the water outlets for energy dissipation. According to the all-lock chamber water conveyance system, longitudinal and transverse flow of water flow in a water conveyance process of a ship lock chamber can be reduced, mooring conditions of ships in the lock chamber are improved, the lockage safety of the ships is improved, the water conveyance efficiency of the lock chamber is improved, and the passenger and freight volume of the lock chamber is increased; and by simplifying the body forms of the second diversion ports of the lock chamber, a cavitation and cavitation erosion problem which is liable to appear because of too complex body forms of the second diversion ports is avoided.

Description

technical field [0001] The invention relates to the technical field of water conservancy and hydropower engineering, in particular to an all-lock-chamber water delivery system that can adapt to large-scale high-head ship locks. Background technique [0002] Ship locks are navigable structures installed on navigable rivers to help ships overcome the water level difference caused by damming. [0003] During the water filling process of the ship lock, the upstream high-level water enters the lock chamber through the water delivery system, and the potential energy of the water body is partially converted into kinetic energy and enters the lock chamber. If the energy of the water entering the lock chamber is poorly dissipated or the energy is too concentrated, it is easy to Excessive turbulence, turbulence and obvious longitudinal and (or) lateral flow in the lock chamber will endanger the safety of ships passing through the lock chamber. [0004] Ship locks are usually divided ...

AI Technical Summary

Problems solved by technology

The main reason for this result is that in addition to the limited working conditions of the valve section, the berthing conditions in the lock chamber are difficult to meet the requirements.

Although the conventional water delivery system with two diversions takes into account the purpose of equal inertia and dispersed water delivery to a certain extent, due to the large area occupied by the diversion outlet of the sluice chamber, it is impossible to arrange water outlets, which also restricts the goal of fully dispersed water delivery. , and with more divisions (such as 8-section water), this problem will become more prominent

[0007] It can be seen that with the increase of the size of the sluice chamber and the increase of the water head, the conventional equal inertia water delivery system is also facing the dilemma that it is difficult to meet the requirements

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