Power generation device using lift type oscillating hydrofoils to capture tidal current energy

Abstract

The invention particularly discloses a power generation device using lift type oscillating hydrofoils to capture tidal current energy, which comprises a working platform and hydrofoils, wherein the top of the working platform is provided with a bracket connected with the working platform; both ends of each hydrofoil are mounted on a hydrofoil supporting frame which can slide back and forth along the bracket in the perpendicular direction; a floating tank is mounted on the lateral surface of the hydrofoil supporting frame; a hydrofoil position / attitude regulation system is mounted between the water tank and the hydrofoil supporting frame; the hydrofoils are connected with a hydraulic energy conversion system; and the hydraulic energy conversion system sends converted energy to a generator. By using the tidal current energy power generation device, the set can be arranged in a relatively shallow water area. The number of the hydrofoils can be regulated according to water depth, and high energy capture rate can be obtained under working conditions of high flow rate and low flow rate; the structure is simple, reliable and stable; and self start and self oscillation maintenance can be realized under the action of fluid. Thus, the power generation device has wide expected application prospects.

Description

[0001] technical field [0002] The invention relates to a device suitable for capturing tidal (ocean) current energy for power generation, which belongs to the field of mechanical manufacturing. Background technique [0003] Energy is the basic element for human survival and all activities. Throughout the development of today's society, human development is increasingly dependent on energy. With the extensive use of fossil energy, environmental pollution is becoming more and more serious. In order to reduce the national economy The development depends on fossil fuels. Under the guidance of the policies of the governments of various countries, the development and application of renewable energy utilization equipment have grown rapidly. Tidal (ocean) current energy has been valued by national and provincial planning departments. [0004] The research on hydrodynamic power generation technology in all countries in the world started relatively late, but has developed rapidly i...

AI Technical Summary

Problems solved by technology

When the incoming flow velocity is low, the incoming flow is instantaneously unstable, and the gravity of the hydrofoil sinking system is greater than or equal to the buoyancy and lift, the system may not be able to complete the complete quasi-sinusoidal sinking-pitching coupling motion, and may be stuck in one position In addition, the scheme requires that the pitch phase difference of the two hydrofoils is 90 degrees. In fact, due to the serious leakage in the swing cylinder, the long-term operation will inevitably deviate from the pitch amplitude of 90 degrees, which will cause the system to fail.

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