Wave-Driven Water-Drawing Structure for Continuous Seawater Pumping
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Solution Overview
Problem
Current ocean energy power generation methods suffer from low efficiency due to the long tidal cycles, limiting the effectiveness of energy conversion.
Innovation Solution
A water-drawing structure for an ocean energy generator that utilizes a floating element and counterweight system to convert ocean wave motion into continuous seawater pumping, using a linkage mechanism to drive a piston member within an intake conduit, enabling efficient seawater flow to a power generation system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If tidal changes are used to generate kinetic energy for ocean energy power generation, then the system can operate continuously, but the power generation efficiency is low due to the long tidal cycle
Solution Approach 1:
The patent changes the operating parameter from tidal cycle (long duration) to wave cycle (short duration). By utilizing the floating element to capture wave motion instead of tidal motion, the system achieves multiple pumping cycles within the time of one tidal cycle, dramatically increasing power generation efficiency while reducing the effective operation time required per energy unit.
Solution Approach 2:
The patent implements periodic pumping action through the floating element that rises and falls with ocean waves. The piston rod and check valve system create repeated intake and discharge cycles, converting the periodic wave motion into continuous water flow to the hydroelectric generator, thereby increasing energy conversion frequency and efficiency.
2Productivity
If a floating element and counterweight system is used to convert wave motion into pumping action, then continuous seawater intake is achieved, but the device complexity increases
Solution Approach 1:
The patent employs a counterweight system that balances the floating element's motion. As the floating element rises with waves, the counterweight descends, and vice versa. This creates a balanced mechanical system that facilitates continuous reciprocating motion of the piston rod, enabling continuous seawater intake and discharge while maintaining mechanical equilibrium.
Solution Approach 2:
The patent divides the pumping function into separate components: the floating element captures wave energy, the linkage mechanism transfers motion, the piston rod performs the pumping action, and the check valve ensures unidirectional flow. This segmentation allows each component to perform its specific function efficiently, achieving continuous pumping through coordinated operation of simpler individual parts.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances power generation efficiency by leveraging ocean waves for continuous seawater intake, surpassing the limitations of tidal-based systems by providing superior energy conversion rates.
Implementation Method 1
a floating element floats on the water surface
Implementation Method 2
An intake conduit having a check valve disposed therein
Data Source
AI summary
A water-drawing structure for an ocean energy generator includes a sea-water collection tank with multiple locating posts at its bottom. An intake conduit includes a check valve connected to the tank, and a water-drawing assembly connected to the intake conduit. A floating element on the water surface is connected to a linkage system comprising a main linkage, a piston rod and a floating element linkage. The main linkage pivots on a pillar at one end and is connected to the floating element linkage at the other end. The piston rod is connected between the main linkage and the water-drawing assembly. A counterweight is connected to the main linkage where it connects to the floating element linkage. One pillar has two positioning feet between which the main linkage passes. As waves cause the floating element, the linkage system drives the water-drawing assembly to pump seawater efficiently for power generation.


