A fishway movable partition device

Abstract

A movable partition device for a fish passage comprises water channels for accommodating float bowls, the float bowls, movable partitions arranged in the fish passage, fixed supports for connecting the float bowls and the movable partitions as well as connecting rods, wherein the water channels are arranged on two sides of the upstream section of the fish passage and parallel to the fish passage; each water channel is defined by a fish passage side wall, a water channel side wall and a bottom plate, a communicating pipe arranged at the bottom in the water channel is communicated with reservoir water; fixed partitions are arranged on the bottom plates; the movable partitions are arranged on the downstream side surfaces and tightly attached to the fixed partitions; vertical gate slots are formed in the side walls of the fish passage, guide rails are arranged in the gate slots, and the movable partitions only can vertically move up and down under the restriction of the guide rails; the lower ends of the connecting rods are connected with fixed ends of the movable partitions, the upper ends are connected with the fixed supports through hinges, and flange nuts capable of adjusting connecting rod lengths are arranged in the middles; and the float bowls are hollow cases and are connected with fixed ends of the fixed supports. The fixed supports and the connecting rods drive the movable partitions to move up and down synchronously, so that upper water depth and flow of the movable partitions are automatically adjusted and controlled.

Description

technical field [0001] The invention relates to a fishway structure, in particular to a fishway movable partition device which can automatically adjust the height according to the change of the upstream water level. Background technique [0002] The water conservancy and hydropower project built on the river channel provides renewable and clean energy for human beings, but at the same time, because the barrage dam blocks the channel for migratory fish to spawn, it has a great impact on the water ecological environment. Ecological restoration measures that effectively reduce the impact of fish from engineering barriers are of great significance to the protection of the ecological environment when advocating scientific and sustainable development. [0003] Due to the requirements of power generation, water supply, etc., the water level of the reservoir fluctuates frequently, which may easily cause frequent changes in the water level at the upstream outlet of the fishway. If t...

AI Technical Summary

Problems solved by technology

However, the mechanical equipment of this technology is relatively complicated, not only the cost is high, but the long-term frequent hydraulic drive control is not conducive to energy saving, and the reliability is also poor

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