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Artificial nature type slope fishway and fish entering method

A technology that imitates nature and slopes. It is applied in water conservancy projects, marine engineering, climate change adaptation, etc. It can solve problems such as ecosystem impact, fish migration impact, and unfavorable biodiversity, and achieve the effect of increasing the discharge rate.

Active Publication Date: 2018-06-05
CHINA THREE GORGES UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the continuous progress of human society, the use of energy is increasing day by day, and the remaining amount of non-renewable resources is getting less and less. Environmentally friendly and sustainable new energy is now favored. Among them, the application of water conservancy energy has become very common. With the dam With the construction of water conservancy projects, the energy problem has been alleviated, but water pumps and other facilities have an impact on the ecosystem, fish in the upstream and downstream cannot migrate, which is not conducive to the continuation of biodiversity. The water flow velocity in the fishway is related to the height difference of the dam. If the water flow is too fast, it will affect the migration of fish. Now a fishway that is more conducive to fish migration is needed to help fish complete migration and maintain the stability of the ecosystem.

Method used

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  • Artificial nature type slope fishway and fish entering method
  • Artificial nature type slope fishway and fish entering method
  • Artificial nature type slope fishway and fish entering method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Such as Figure 1-9 Among them, a natural-like slope fishway, which includes a rest pool 1, an upper curved channel 2, a lower curved channel 3, an upper inclined channel 4, a lower inclined channel 5 and a spillway channel 6, is characterized in that: the upper curved channel The channel 2 and the lower curved channel 3 are respectively installed on both sides of the rest pool 1 to connect, the upper inclined channel 4 is connected to the end of the upper curved channel 2, and the lower inclined channel 5 is connected to the end of the lower curved channel 3 , the spillway channel 6 is connected to the top of the upper curved channel 2, the ends of the upper inclined channel 4 and the lower inclined channel 5 are equipped with multi-layer fish inlets 7, the multi-layer fish inlets 7 One side is equipped with a multi-stage oil cylinder 8, the multi-stage oil cylinder 8 cooperates with the inlet baffle 9, and the inlet baffle 9 is hinged with the multi-layer fish inlet 7...

Embodiment 2

[0046] Adopt any fish-entry method imitating a natural slope fishway, which includes the following steps:

[0047] Step1: According to the requirements of collecting water layer fish, operate the multi-stage oil cylinder 8, and selectively control the opening of the inlet baffle 9 through the multi-stage oil cylinder 8;

[0048] Step2: The fish in the corresponding water layer will enter the rest pool 1 through the multi-layer fish inlet 7 through the upper inclined channel 4 and the upper curved channel 2;

[0049] Step3: provide fish with a place of rest by pebbles 14 at the bottom of the rest pool 1;

[0050] Step4: Turn on the nighttime visual camera 17 on the top of the rest pool 1 to collect images of the fish inside the rest pool 1 and record the activity.

[0051] Working process and working principle of the present invention are:

[0052] When using this natural-like slope fishway, the multi-layer fish inlet 7 is divided into upper, middle and lower layers by the pa...

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Abstract

The invention discloses an artificial nature type slope fishway and a fish entering method. An upper bent channel and a lower bent channel are arranged on and connected with the two sides of a restingpool respectively, an upper inclined channel is connected with the end of the upper bent channel, a lower inclined channel is connected with the end of the lower bent channel, the end of the upper inclined channel and the end of the lower inclined channel are each provided with a multi-layer fish inlet, a multi-stage oil cylinder is installed on one side of each multi-layer fish inlet, the multi-stage oil cylinders are all matched with an inlet baffle, a multi-edge plate frame is detachably connected with the lower inclined channel, the upper bent channel and the lower bent channel are each internally and detachably connected with a water blocking wheel. By means of the artificial nature type slope fishway, the water flow speed can be effectively reduced, places can be provided for allowing migration fishes to temporarily have a rest, fish migration is facilitated, the normal operation of an ecological system is ensured, a flooding function is fused, and the slope fishway is worthy ofapplication and popularization.

Description

technical field [0001] The invention relates to the field of fishways, in particular to a natural-slope fishway and a method for entering fish. Background technique [0002] With the continuous progress of human society, the use of energy is increasing day by day, and the amount of non-renewable resources remaining is less and less. Environmentally friendly and sustainable new energy is now favored, and the application of water conservancy energy has become very common. With the dam With the construction of water conservancy projects, the energy problem has been alleviated, but water pumps and other facilities have an impact on the ecosystem, fish in the upstream and downstream cannot migrate, which is not conducive to the continuation of biodiversity. The water flow velocity in the fishway is related to the height difference of the dam. If the water flow is too fast, it will affect the migration of fish. Now a fishway that is more conducive to fish migration is needed to he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCE02B8/08Y02A40/60
Inventor 谭均军颜鹏东戴会超石小涛陶林金志军任雅琴张杰
Owner CHINA THREE GORGES UNIV
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