Classified selection fishway device capable of manually intervening in natural water flow acceleration for impact prevention

Abstract

The invention discloses a classified selection fishway device capable of manually intervening in natural water flow acceleration for impact prevention. The fishway device comprises a device body, supporting edge side frames are fixedly connected to the outer side of the device body, and a water level baffle frame and a supporting device with the front layer and the rear layer separately designed are arranged between the supporting edge side frames, so that the fishway device is more stable in fixing and positioning. A manual intervention vortex flow generation device on the front side can enable the device and a fishway isolation plate on the rear side not to interfere with each other, and a translation sliding rail is arranged above the front side of the water level baffle frame. The invention relates to the technical field of fishery. According to the classified selection fishway device capable of manually intervening in natural water flow acceleration for impact prevention, the problems that time and labor are wasted and normal operation of a fishway is easily affected due to the fact that fishes need to be lifted out of the fishway are solved, and a vortex device adopts the design that both the transverse direction and the longitudinal direction are adjustable and can cope with water flows of different water levels. The manual intervention vortex flow generation device on the front side can prevent the device from interfering with the fishway isolation plate on the rear side.

Description

technical field [0001] The invention relates to the technical field of fishery, in particular to a classification and selection fishway device for artificially intervening in natural water flow to accelerate and prevent erosion. Background technique [0002] While water conservancy and hydropower projects exert their benefits in flood control, power generation, and shipping, they also have a non-negligible impact on the ecological environment, especially the barrier impact on fish migration channels; Fish protection measures have been adopted internationally for more than 300 years. The main types include fishways, fish elevators, lifting lock chambers, and fish collection and transportation systems. Among them, fishways have the best fish passing effect and the widest range of applications. Fishways account for about 90% of the built fish passing facilities in my country. [0003] For example, the patent No. CN201610786260.5 discloses a system and method for observing, colle...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a sorting and selecting fishway device for artificially intervening in natural water flow acceleration and anti-washing, which solves the problem of needing to lift fish out of the fishway, which is time-consuming and laborious, and easily affects the normal operation of the fishway

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