Shoreside seamless fish-driving device used for fish-guiding system

Abstract

Provided is a shoreside seamless fish-driving device used for a fish-guiding system. The shoreside seamless fish-driving device comprises an air pump arranged shoreside and flash lamps matching the air pump. An air outlet pipe having one enclosed end is arranged at the bottom of a riverway and located ahead of the position where a fish-guiding net is connected with the shoreside. The other end of the air outlet pipe is communicated with the air pump via an air-guiding pipe installed on a fixing rack. At least one flash lamp installed on a lamp rack is arranged into the riverway at the downstream position of the air outlet pipe. The air outlet pipe is composed of a PVC pipe having uniformly-distributed small holes on the pipe wall and a microporous sponge sleeve wrapped outside of the PVC pipe. The shoreside seamless fish-driving device used for the fish-guiding system has following beneficial effects: the problem that a physical guide fish gate cannot be closely connected to the shoreside is overcome; by matching the physical guide fish gate with fish trapping and driving technology, shoreside seamless connection of the fish-guiding system is realized and the middle of the riverway is matched with a non-physical fish-guiding system; and fish-guiding work and ship-passing operation are taken into consideration.

Description

technical field [0001] The invention relates to the field of ecological hydraulic engineering, in particular to a shore seamless fish driving device for a fish guiding system. Background technique [0002] The construction of hydraulic structures such as dams blocks the migration channels of fish and has a serious impact on the growth and reproduction of fish. In order to reduce the impact of the dam on fish migration, people have adopted a series of means of passing fish, such as fishways, fish locks, fish lifts and fishing boats. Above-mentioned various fish passing means all relate to fish guiding system. [0003] There are many kinds of fish guiding systems, mainly using the method of water guiding fish and physical fish guiding. Wherein, the physical fish guiding method mainly consists of physical fish guiding grids and some fish luring equipment. The physical fish guide fence is mainly a solid structure similar to a fence to form a certain angle with the water flow ...

AI Technical Summary

Problems solved by technology

[0004] 1. It is not easy to achieve a seamless connection with the bank. The airtightness between the fish guide fence and the river channel directly determines the effect of collecting fish, and the bottom of the natural river bank is often sloped and covered with irregular stones, making the Physical fish guide fences are not easy to construct and cannot be closely connected with the shore, some fish will escape from the fish collection area through the gaps on the shore

[0005] 2. It is easy to hinder other uses of water bodies, such as affecting navigation

Although various fish-repelling technologies have a certain fish-guiding effect and are relatively low in cost, there is still a certain gap in their fish-blocking and driving effects compared with physical fish-guiding grids, because fish-driving technologies such as air bubbles and light cannot be compared with physical fish-guiding grids. Completely block the swimming route of fish like a physical fish guide fence

In addition, the above-mentioned fish luring technology is mostly used for fish collection in reservoirs or oceans, or for auxiliary fish collection in fish passing facilities itself, but has not been applied to guide fish in rivers.

Images