Fishway inlet water-supplementing system, fishway and water-supplementing method

A technology for water supply and fishway imported from fishway, applied in water conservancy projects, water supply installations, drinking water installations, etc., can solve problems such as reducing the efficiency of hydropower generation, difficult construction, waste of water resources, etc., to facilitate fish identification, enhance attraction Fish effect, the effect of enhancing the effect of attracting fish

Pending Publication Date: 2020-06-09
TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to solve the problems existing in the prior art, and to provide a method that can use tail water to replenish water at the fishway inlet, so as to solve the problem of directly taking water from the upstream reservoir, wa

Method used

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  • Fishway inlet water-supplementing system, fishway and water-supplementing method
  • Fishway inlet water-supplementing system, fishway and water-supplementing method
  • Fishway inlet water-supplementing system, fishway and water-supplementing method

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Experimental program
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Effect test

Embodiment 1

[0036] Such as Figure 1-Figure 3 As shown, a fishway inlet water replenishment system includes an oblique fishway inlet 2 protruding from the fishway tank body 0 and extending out of the river bank 1, and a water replenishment pipe 3 pierced in the oblique fishway inlet 2, and the water replenishment pipe 3 The tail water is connected to the water flow area 4, and the tail water is supplemented by the water supplement pipe 3 to the 2 entrances of the inclined fishway, so as to avoid direct water intake from the upstream reservoir, which will easily cause waste of water resources and reduce the efficiency of hydropower generation. At the same time, the tail water replenishment method is adopted. It can solve the problem that the existing water replenishment culvert line is long and the construction is difficult.

[0037] Specifically, generally speaking, the fishway entrance in the fishway project is mostly opened on the fishway tank body 0, and is basically flush with the riv...

Embodiment 2

[0039] Such as Figure 1-Figure 3 As shown, the difference from Embodiment 1 is that, further, the oblique fishway inlet 2 is formed by a water-facing partition wall 21 and a backwater partition wall 22, and extends to the tailwater flow area 4. On the water-facing partition wall 21 Wear water supply pipe 3.

[0040] Specifically, multiple sets of water supply pipes 3 may be arranged along the axial direction of the water-facing partition wall 21 .

Embodiment 3

[0042] Such as figure 1 with figure 2 As shown, the difference from Embodiment 1 and Embodiment 2 is that further, the length L extending obliquely to the fishway inlet 2 out of the river bank 1 is not greater than the distance from the outlet of the generator set 5 near the fishway side to the river bank 1 side l, so as not to have a large water blocking effect on the tail water.

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PUM

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Abstract

The invention provides a fishway inlet water-supplementing system, a fishway and a water-supplementing method. The fishway inlet water-supplementing system comprises a fishway slot body, an inclined fishway inlet which extends out of the fishway slot body and extends out of a river bank, and a water-supplementing tube which is arranged in the inclined fishway inlet in a penetrating mode, wherein the water-supplementing tube communicates with a tail water water-flow area. The fishway inlet water-supplementing method comprises the following steps: jointing the inclined fishway inlet, which extends out of the river bank, on the fishway slot body along the bank of the river bank, and arranging the water-supplementing tube on the inclined fishway inlet, wherein the water-supplementing tube guides tail water of the tail water water-flow area into the inclined fishway inlet for supplementing water to the inclined fishway inlet. The water-supplementing system can utilize tail water to supplement water for the fishway inlet for solving the problems that water resources are wasted as water is directly taken from an upstream reservoir, hydraulic power generation efficiency is reduced, a water-supplementing culvert pipeline is relatively long, and construction difficulty is relatively great.

Description

technical field [0001] The invention relates to the technical field of fishway water replenishment, in particular to a fishway inlet water replenishment system, a fishway and a water replenishment method. Background technique [0002] Fishways are fish passage structures set up at water conservancy projects such as dams or natural obstacles to communicate with fish migration channels. The construction of fishway projects can alleviate the blocking effects of obstacles to a certain extent. A conventional fishway mainly includes an inlet, a tank body and an outlet. The fishway inlet is the starting position of fish migrating up through the dam, and is the gateway to enter the fishway. The water flow near the fishway inlet is the flow from the fishway tank body and the power station. The water flow connection problem of the tail water. In order to make the water flow at the entrance of the fishway have a better effect of luring fish, the suction flow at the entrance and exit m...

Claims

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Application Information

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IPC IPC(8): E02B8/08E03B3/00
CPCE02B8/08E02B8/085E03B3/00Y02A40/60
Inventor 李君涛王鑫李延伟普晓刚金辉李华国张明郝媛媛王艳华齐春风
Owner TIANJIN RES INST FOR WATER TRANSPORT ENG M O T
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