A protection device and method for preventing the diffusion of pollutants in an aquatic environment

By setting up inclined floating rafts in the river channel to guide the flow and combining them with drive and mooring mechanisms to adjust the water flow trajectory, the problem of snail and floating debris diffusion at large and medium-sized open water intakes is solved, achieving efficient protection with minimal impact on the river channel and water diversion.

CN122358644APending Publication Date: 2026-07-10CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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Patent Information

Application Number
CN202610597524.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-04-30
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing technologies are insufficient to effectively prevent the spread of snails and floating debris at large and medium-sized open water intakes, especially under different inflow and diversion conditions, and have a significant impact on river flood control and navigation.

Method used

A floating raft placed at an angle on the shore is used to guide the water flow. The principle of fluid dynamics is used to change the water flow trajectory and guide floating objects around the inlet. The tilt angle and submersion depth are adjusted by combining the drive mechanism and mooring mechanism, and aeration pipes are set to prevent floating objects from being passively introduced.

Benefits of technology

It effectively prevents the spread of pollutants under different water conditions, with almost no impact on river flow and water diversion capacity, reducing the impact on river channels and sluice gates, and preventing the spread of Oncomelania snails.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention proposes a protective device and method for preventing the spread of pollutants in aquatic ecological environments, belonging to the field of ecological protection. The method includes the following steps: a water diversion channel is set up on one side of a river channel; anchor points are set up on the riverbank on the same side of the water diversion channel; a guide fluid is connected to the anchor points and allowed to float freely on the river surface; when the guide fluid is inclined at an acute angle relative to the river's flow direction, its end is anchored; the guide fluid is used to change the river's flow trajectory, causing floating debris in the water to bypass the water diversion channel. This invention uses a floating guide fluid placed obliquely on the bank, utilizing fluid dynamics principles to change the surface water flow trajectory, lifting floating debris from the inlet area of ​​the river flow rather than forcefully intercepting it. This results in minimal occupation of the river's cross-sectional area by the guide fluid, with the resulting water level rise only on the millimeter level, having almost no impact on upstream flood discharge and the water diversion capacity of the sluice gate, achieving the effect of diverting flow without obstructing water.
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