Lifting, transferring, classifying and temporary rearing system for fishes in hydropower station

Abstract

The invention provides a lifting, transferring, classifying and temporary rearing system for fishes in a hydropower station. The lifting, transferring, classifying and temporary rearing system comprises a sliding groove, a temporary rearing pond and a grading grille, wherein the sliding groove is an obliquely arranged transport channel and provided with a counting device; a fish inlet is formed inone side of the temporary rearing pond, connected with an outlet of the sliding groove, divided into two temporary rearing areas by a baffle, and equipped with an electric valve, a submersible pump and an aeration device; and the grading grille is mounted in the temporary rearing pond, the grading grille is provided with grille strips with obliquely downward front ends, the ends, close to the sliding groove, of the grille strips are mounted on the bottom surface of the fish inlet, the other ends are scattered to form a fan to be fixed to the baffle, fishes flowing out of the sliding groove are conveyed to the temporary rearing pond through the grading grille, small fishes with smaller sizes drop to the first temporary rearing area from gaps between the grille strips, and large fishes slide to the second temporary rearing area from the grading grille. The lifting, transferring, classifying and temporary rearing system can well count, classify and temporarily rear fishes, and also effectively guarantee the survival rate of the fishes.

Description

technical field [0001] The invention relates to the field of system design for collecting and transporting fish, in particular to a fish lifting, transshipment and sorting and temporary raising system for hydropower stations. Background technique [0002] The construction of water conservancy and hydropower projects inevitably destroys the connectivity of rivers, blocks the migration channels and gene exchange of fish, and causes the destruction of fish living environment and ecological diversity. Therefore, the design and construction of fish passage facilities for the purpose of fish resource protection, such as fishways, fish collection and transportation systems, fish gates, or fish passage facilities in different combinations, has received extensive attention. [0003] Among them, the fish collection and transportation system refers to the artificial auxiliary system that transports fish across the dam by car or fishing boat through methods such as luring fish, blocking...

AI Technical Summary

Problems solved by technology

At present, there is a lack of an effective fish temporary breeding system. Therefore, the above-mentioned links cannot be smoothly and efficiently connected, which makes the connection of various work links in the fish collection and transportation system poor, and a lot of human and material resources are wasted.

Images