Offshore Jellyfish Collection Net with Horizontal Spanning Barrier
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Solution Overview
Problem
Existing offshore processing systems for preventing jellyfish inflow into large water intake areas face clogging issues, leading to water intake blockages and high disposal costs, especially when dealing with massive jellyfish proliferation.
Innovation Solution
A foreign-object offshore processing system featuring a horizontal net spanning the interval between foreign-object inflow prevention devices, with a triangular bottom net and longitudinal nets, efficiently collects jellyfish by guiding them towards collecting pontoons, reducing clogging and the number of required devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a net is provided to entirely cover a water intake surface to prevent jellyfish entrance, then jellyfish prevention is improved, but water intake is blocked due to net clogging
Solution Approach 1:
The water intake surface is divided into multiple segments with individual inflow prevention devices spaced at intervals. Each device covers only a portion of the intake area, leaving gaps between devices that allow water to pass through freely while still intercepting jellyfish through the coordinated action of multiple segmented barriers.
2Productivity
If multiple inflow prevention devices are provided at intervals, then water intake flow is improved, but jellyfish may enter through intervals between devices
Solution Approach 1:
The prevention system extends from a single horizontal plane to a three-dimensional configuration using bottom nets that reach toward the sea bottom and vertical nets that extend upward. This multi-dimensional net arrangement creates overlapping coverage zones that block jellyfish migration paths while maintaining water flow through the structured gaps between nets at different heights and depths.
3Reliability
If the number of devices is increased to minimize intervals and prevent jellyfish entry, then jellyfish prevention is improved, but cost increases
Solution Approach 1:
Multiple net functions are merged into integrated assemblies where bottom nets, vertical nets, and collecting pontoons work together as unified structures. Each integrated assembly covers a larger effective area with fewer discrete components, reducing the total number of separate devices needed while maintaining comprehensive jellyfish prevention coverage across the water intake surface.
Data Source
AI summary
Provided is foreign-object offshore processing system, including foreign-object inflow prevention devices configured to prevent inflow of foreign object into water intake and provided at interval. Each device includes: collecting pontoon serving as inlet of foreign object and provided to float on sea surface of pool defined by curtain wall, the pool being for drawing cooling sea water from sea toward water intake; bottom net spreading toward sea bottom on upstream side of water intake channel in triangular shape with collecting pontoon as vertex; longitudinal net fixed to two floating chains in suspended manner to spread out in surface area of sea, the two floating chains extending on sea surface from collecting pontoon in correspondence with two sides extending from vertex of triangular shape forming bottom net; and lateral net spreading between bottom net and at least portion of longitudinal net, wherein horizontal net cover covers interval between adjacent devices.