Escalator type fishway

An escalator and fishway technology, applied in marine engineering, construction, climate change adaptation, etc., to achieve the effect of efficient cooperation, efficient fish passing, and improved fish passing efficiency

Active Publication Date: 2021-07-09
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects and problems existing in the existing equipment, the present invention provides an escalator-type fishway, which is difficult for fish to migrate, with low efficiency and high resistance, and aims at water conservancy and hydropower projects affecting the ecology of the river basin due to blocking the river course. With the emphasis on the protection of the ecological environment, more and more water conservancy projects need to build fishways. So far, some of the fishways that have been built have poor fish passing effects, or even completely failed. Therefore, research on innovative fishways and high-efficiency fishways is especially important. significantly important

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment 1: This embodiment aims to provide an escalator-type fishway mainly used in the field of water conservancy and hydropower. With the rapid development of my country's economy and the substantial improvement of people's living standards, the safety and economy of engineering construction are no longer It is the only requirement, and the protection of the ecological environment has gradually received attention, and it is required to develop and protect simultaneously, so as to realize the harmonious coexistence between man and nature. As an ecological compensation measure in the development and construction of water conservancy and hydropower, fishway plays a very important role.

[0033] Aiming at the defects of existing fishways, this embodiment provides an escalator-type fishway, which specifically includes a fish transporting and luring system, a ladder track system, an energy supply system and a real-time monitoring system; with the help of the fish transport...

Embodiment 2

[0044] Embodiment 2: This embodiment is basically the same as Embodiment 1, the difference is that this embodiment further explains the structure of the transmission chain.

[0045] Such as Figure 8 As shown in , the transmission chain in this embodiment includes an outer chain piece, an inner chain piece and rollers 15, and the rollers 15 are arranged at intervals on the outer chain piece and the inner chain piece, and are nested in the outer track 4. The outer circumference of the power wheel 14 A wheel groove is provided, and the roller 15 is matched and nested in the wheel groove, and drives the transmission chain to rotate under the rotation of the power wheel. The inner side of the transmission chain is provided with a shaft seat, and the connecting shaft is rotated and arranged in the shaft seat, and Can rotate along the shaft seat.

[0046] In this embodiment, the power wheel is connected to the motor transmission to realize rotation, and the wheel groove is used to ...

Embodiment 3

[0047] Embodiment 3: This embodiment is basically the same as Embodiment 1, and the difference is that this embodiment further explains the structure of the fish guiding trough.

[0048] This example Figure 6-7 As shown, the bait is placed in the box body 10, the box body 10 is detachably installed on the tank body 7, and a discharge opening is arranged on the top of the box body 10, and the discharge opening can be a uniformly distributed hole structure, so A plurality of mesh holes are arranged on the mesh, and the bottom of each mesh hole is hinged with a flap 12, and the back of the flap 12 is provided with an inclined support backboard. When the fish guide groove is vertical, the flap can freely touch On the supporting backboard 13, when the fish guide tank is turned downwards, the turning plate will block the mesh due to gravity; the water diversion wall is provided with a fish luring light, and the power supply system can also supply energy for an external power supply...

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PUM

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Abstract

The invention belongs to the technical field of water conservancy and hydropower, and particularly relates to an escalator type fishway. The structural forms and functions of a traditional pool type fishway and a groove type fishway are improved on the basis of the principle of an escalator, and a fish conveying and luring system, a ladder way guide rail system, an energy supply system and a real-time monitoring system are used cooperatively, so that fishes are helped to overcome the flow velocity in the fishway to swim to the upstream. The escalator type fishway has the advantages of automation and visualization, the fish passing efficiency of the fishway is greatly improved, and the problems of difficulty in fish migration, low efficiency and large resistance are solved.

Description

technical field [0001] The invention belongs to the technical field of water conservancy and hydropower, and in particular relates to an escalator-type fishway. Background technique [0002] The fishway is a facility that communicates the fish migration channel in the river. At present, the fishway in our country mainly has the following layout measures. The first type is the fish gate. The fish gate mainly allows fish to enter the water-filled lock chamber from the tail water. When the water level of the sluice chamber is equal to the previous water level, the fish is passed through the sluice. The use of the fish gate is not limited by the height of the water flow, and the impact force of the water flow itself can be used for water pressurization and transmission, which depends on less external conditions. However, there is a problem of limited volume in the use of fish gates. When fish want to migrate in large quantities, it is not conducive to finding the entrance. When...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCE02B8/085Y02A40/60
Inventor 丁泽霖张先起史书汇邱梦婷王冰洁秦瑶
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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