Ship lock double-layer water conveying system with longitudinally-through drainage type lock bottom

Abstract

The invention relates to a ship lock double-layer water conveying system with a longitudinally-through drainage type lock bottom. The ship lock double-layer water conveying system comprises a ship lock chamber, a first diversion port, a middle branch gallery, a second diversion port, water conveying main galleries located on two sides of the ship lock chamber, filling valves arranged on the upstream portions of the water conveying main galleries, and drain valves arranged on the downstream portions of the water conveying main galleries; the water conveying main galleries communicate with an inlet of the first diversion port through T-shaped pipes, and an outlet of the first diversion port communicates with the second diversion port through the middle branch gallery; the second diversion port communicates with the third diversion port located in the upper layer through a vertical shaft, the third diversion port communicates with a water drainage branch gallery, and the water drainage branch gallery communicates with water drainage holes, and energy dissipation cover plates are arranged on the water drainage holes; and the elevations of the first diversion port, the middle branch gallery and the second diversion port are consistent with those of the drain valves, and the third diversion port, the water drainage branch gallery, the water drainage holes and the energy dissipation cover plates are located on the elevation surface of a lock chamber bottom plate. According to the ship lock double-layer water conveying system, the pressure characteristics of the diversion ports canbe improved to avoid cavitation and cavitation erosion, moreover, outflow can be dispersed to the maximum extent, and the water conveying safety and the water conveying efficiency of the ship lock are improved.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a double-layer water conveyance system for ship locks with vertically penetrating water outlets at the bottom of the locks. Background technique [0002] In order to overcome the water level difference caused by the construction of reservoir dams on navigable rivers, navigable structures, most commonly ship locks, need to be built. The operating principle of the ship lock is: through the water delivery system buried on both sides or bottom of the lock chamber, the lock chamber is filled and discharged with water, so that the water level of the lock chamber is equal to the water level of the upstream and downstream, and the ships docked in the lock chamber rise with the filling and discharging water. Or down, so as to overcome the water level difference formed by damming, and realize the upward and downward movement of the ship. [0003] The water conveyance...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of the worse cavitation characteristics of the water flow at the diversion port and the berthing conditions of the ship in the lock chamber caused by the greater water delivery energy of the ship lock, the present invention provides a double-layer water delivery system for the ship lock with longitudinally penetrating water outlet at the bottom of the lock. On the one hand It can greatly improve the pressure characteristics of the diversion port to effectively avoid cavitation and cavitation erosion. On the other hand, it can disperse the outflow to the greatest extent, improving the safety and efficiency of water delivery in the ship lock.

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