System and method for passing fish through step ship lock by utilizing bubble curtain

Abstract

The invention provides a system and a method for passing fishes by using bubble curtains for a step ship lock, bubble curtain spraying plates are symmetrically arranged on two sides of a lock chamber of a single ship lock of the step ship lock, spraying holes in the bubble curtain spraying plates are used for spraying the bubble curtains, and the bubble curtain spraying plates control and adjust the spraying angle of the bubble curtains through hydraulic cylinders. Fish-blocking spraying plates are symmetrically arranged on the two sides of one end of a lock chamber of a single ship lock of the step ship lock, the fish-blocking spraying plates are vertically arranged, the fish-blocking spraying plates form a bubble curtain wall for blocking fishes, a plurality of upstream bubble curtain spraying plates are arranged on the two sides of the upstream approach channel, and a plurality of downstream fish-guiding spraying plates are symmetrically arranged on the two sides of the downstream approach channel. And the bubble curtain spraying plate is communicated with the bubble curtain pump machine. As an important fish luring and repelling means, the bubble curtain has the effects of attracting, repelling and blocking the fishes, and compared with other fish luring and repelling means, the bubble curtain has the advantages of being low in cost, free of pollution, free of damage to the fishes and the like.

Description

technical field [0001] The invention relates to the field of fish passing through cascade ship locks, in particular to a system and a fish passing method for cascade ship locks using bubble curtains. Background technique [0002] To a certain extent, the construction of the project has destroyed the connectivity of natural rivers, blocked the migration paths of the original migratory fish, delayed the process of fish migration, and finally caused the decline of aquatic biological resource diversity. To this end, people have built various types of fish passing facilities to help fish migrate. Among them, fish-baiting measures are crucial in improving the operation and implementation of fish-passing facilities. Ship locks are buildings that must be built for rivers with navigable requirements. They use built-in filling and discharging sluices to change the water level in the lock chamber and alternately open and close the upstream and downstream gates to achieve the problem o...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a cascaded ship lock system and fish passing method using bubble curtains to solve the problem that the design of the ship lock only considers the need for ship passing, and the number of fish naturally passing through the ship lock is very small

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