Double-axis adjustable vertical seam type fish way and operation method thereof

Abstract

The invention discloses a double-axis adjustable vertical seam type fish way and an operation method thereof. The double-axis adjustable vertical seam type fish way disclosed by the invention comprises a side wall, a bottom plate, a gear track, a longitudinal gear, a plurality of pairs of baffles, a buttress, a horizontal gear, a water through hole capable of adjusting the opening degree, a fish through gallery and an operation room; the gear track is positioned on the wall surface, near one side of a pool chamber, of the side wall; the longitudinal gear is positioned on the gear track and can move along the gear track; the baffles are divided into long baffles and short baffles alternatively arranged on the side wall sequentially and spaced at a certain distance; furthermore, the long and short baffles are arranged in pair in the direction vertical to water flow; the water through hole capable of adjusting the opening degree and the fish through gallery are positioned over the baffles; the baffles are connected with the buttress through shafts and the horizontal gear; the buttress and the side wall are connected through the longitudinal gear. According to the double-axis adjustable vertical seam type fish way and the operation method thereof disclosed by the invention, the fish through gallery is separated from an energy dissipation zone; a steady flow pattern is provided for the fish through gallery, so that the fish through gallery is not influenced by the energy dissipation zone, and therefore, the problems of being bad in water flow condition at the fish through gallery and fish through effect and incapable of being applied to relatively high water head difference are solved.

Description

technical field [0001] The invention belongs to the field of water conservancy and hydropower engineering, and relates to a fishway structure and an operating method thereof, in particular to a dual-axis adjustable vertical-slit fishway and an operating method thereof. Background technique [0002] With the overall development of our country's economy and society, people realize that hydropower not only brings economic benefits, but also blocks the communication channels of fish germplasm, resulting in the fragmentation of habitats. With the continuous improvement of environmental protection policies and the continuous increase of environmental supervision of construction projects, the construction of fishways to provide migration channels for fish has gradually become one of the important measures for the protection of aquatic ecology in hydropower projects. [0003] The design of the fishway mainly considers the migratory (upstream or downstream) habits of fish. When the f...

AI Technical Summary

Problems solved by technology

In these fishway structures, the energy dissipation area behind the partition seriously affects the water flow pattern of the fish corridor, and the vertical seam area is the energy dissipation area, and its water flow pattern is very poor, which is not conducive to the migration of fish

In the prior art, the fishway design does not distinguish between the energy dissipation area and the passage of fish

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