一种小型河流拦河构建物鱼类洄游设备
By setting sand-accumulating grooves and dredging pipes in the culverts of small river dams, the hydrodynamics of water flow is used to remove silt, which solves the problem of the impact of siltation on the living environment of fish, improves the cleaning efficiency and reduces maintenance costs, and protects the ecological connectivity of fish migration channels.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- FISHERY MACHINERY & INSTR RES INST CHINESE ACADEMY OF FISHERY SCI
- Filing Date
- 2026-05-14
- Publication Date
- 2026-07-17
AI Technical Summary
In existing fish passages of small river dams, siltation covers the spawning grounds of benthic fish, reduces water transparency, and affects fish survival. At the same time, cleaning up silt is costly and inefficient.
Design a small river dam structure for fish migration, including a culvert, a fish passage area, a sand accumulation groove, a dredging pipe, and a vegetation restoration area. By setting up the sand accumulation groove and the dredging pipe, the water flow dynamics are used to clear the silt, avoiding the closure of the fish passage and reducing the impact on fish.
It enables regular silt removal, reduces the impact on the fish's living environment, improves work efficiency, lowers maintenance costs, adapts to the fish's migration cycle, and protects the fish's living environment.
Smart Images
Figure CN122190206B_ABST