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A vertical slot fishway with the function of a small bait field for overwintering

A small-sized fish pass technology, applied in marine engineering, construction, climate change adaptation, etc., can solve problems such as the extension of fish pass functions without considering the outage season, and achieve the effect of extending the use time

Active Publication Date: 2022-07-01
CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The inventors of the present invention found that: the fishway reconstruction in the prior art only stays in improving the function of the original migration channel of the fishway, without considering the extension of the fishway function during the outage season

Method used

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  • A vertical slot fishway with the function of a small bait field for overwintering
  • A vertical slot fishway with the function of a small bait field for overwintering
  • A vertical slot fishway with the function of a small bait field for overwintering

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] like Figure 1 to Figure 4 The shown vertical slot fishway with the function of a small bait field overwintering field includes a fishway pond room clapboard 3, an inner sidewall of the fishway 4, and an outer sidewall of the fishway 5; the inner sidewall of the fishway 4 and The outer side walls 5 of the fishway are fixed side by side to form a fishway, and a plurality of fishway pond chamber partitions 3 are fixed laterally along the fishway; a fishway inlet 1 is opened at the bottom of the end face of the fishway; the outer sidewall 5 of the fishway is a water-facing surface, An openable and closable structure is provided on the outer side wall 5 of the fishway.

Embodiment 2

[0030] The protocol of Example 1 was adopted, and:

[0031] Among the plurality of fishway tank partitions 3, the fishway tank partitions 3 fixed on the inner sidewall 4 of the fishway and the fishway tank partitions 3 fixed on the outer sidewall 5 of the fishway are alternately distributed.

Embodiment 3

[0033] The protocol of Example 1 was adopted, and:

[0034] The openable and closable structure is the side wall movable structure 12 , and each side wall movable structure 12 constitutes a section of the outer side wall 5 of the fishway.

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PUM

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Abstract

The invention provides a vertical slot fishway with the function of a small bait field for overwintering, comprising a fishway tank chamber partition, an inner side wall of the fishway, and an outer sidewall of the fishway; the inner sidewall of the fishway and the fishway The outer side walls of the channel are fixed side by side to form a fish channel, and a plurality of fish channel compartment partitions are fixed laterally along the fish channel; a fish channel inlet is opened at the bottom of the end face of the fish channel. The invention transforms the outer side wall of the water-facing surface of the vertical slot type fishway into a movable structure that can be opened and closed. The wall is in the form of spur dam with a certain angle, and several fish nest brick structures with broodstock are arranged on the outer side wall, and the fishway is constructed into an open small water area suitable for fish baiting and wintering, which can not only cultivate local fish Long-term and stable habitat, breeding, and migration space can also extend the use time of the fishway and fully exploit the use function of the fishway, which is beneficial to the application research of the fishway.

Description

technical field [0001] The invention relates to a vertical slot fishway with the function of a small bait field for overwintering, and belongs to the field of water conservancy and hydropower ecological protection. Background technique [0002] Fish-passing facilities are mandatory ecological protection measures proposed by relevant national policies for river damming projects, and have especially become one of the important indicators for review and approval of water conservancy and hydropower projects. As one of the main types of fish passing facilities, fish passes are generally used in medium and low head dams, such as Guangxi Changzhou fish passes, Dadu River Pillow Dam first-class fish passes, etc., which have achieved relatively good fish passing effects; in addition, There are also cases where vertical slot fishways were built in some high dams and operated well. The vertical slot fishway is a type of pool fishway, characterized in that a rectangular channel with an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B8/08
CPCE02B8/085Y02A40/60
Inventor 周家飞唐腾飞付甫刚赵再兴纵霄魏浪夏豪
Owner CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD