Gate valve pipe-type fish passing method

Abstract

The invention relates to a gate valve pipe-type fish passing method. Water of an upstream reservoir is diverted into a fish gathering cavity of a fish gathering storehouse through a fish passing pipeline, and a fish attracting velocity is formed in the fish gathering cavity and at a fish inlet through a fish-attracting structure to induce fishes from downstream to enter the fish gathering cavity through the fish inlet; after the fish attracting is completed, the gate is closed, water stored in the fish passing pipeline is discharged through a pressure release pipeline; the water of the upstream reservoir is injected into the fish gathering cavity and the fish-passing pipeline through a water injecting pipeline to boost the pressure in the fish gathering cavity; the fishes gathered in the fish gathering cavity are introduced into the fish passing pipeline by means of boosting the pressure, and the pressure rises until a water head in the fish passing pipeline is flush with a water levelof the reservoir to prepare the fish passing; and a fish passing velocity is generated through a discharge pipeline and a second flow control valve on the discharge pipeline, and the hydraulic fish passing is realized. According to the gate valve pipe-type fish passing method, the occupied area is small, the project cost is low, and the water consumption is low.

Description

technical field [0001] The invention relates to the technical field of fish passing, in particular to a gate valve pipeline type fish passing method. Background technique [0002] In order to meet the needs of flood control, power generation, water supply and navigation, people often build water conservancy facilities such as dams and power stations in rivers. These facilities destroy the connectivity of the original river, fragment the ecological environment of the river, block the migration channels of fish and other aquatic animals and plants in the river, cause the loss or change of habitat, and lead to the reduction or even extinction of fish. [0003] Under the general environment of vigorously advocating the construction of ecological civilization, fish passing facilities such as fishways, fish locks and fish lifts are not only a water conservancy project, but also a compensatory project for the ecological benefit of the people. , Restoring the original ecological en...

AI Technical Summary

Problems solved by technology

[0004] At present, there are methods of anti-natural bypass fishway for fish passing, and there are also fish gates, fish elevators or fish collection systems for fish passing, but the above fish passing methods either occupy a large area and Either the project cost is high, or the water consumption is high

Images