Wave-energy power generation device

Abstract

The invention discloses a wave-energy power generation device. The wave-energy power generation device comprises a hollow cylindrical main body structure, a power generation unit and a piston component. The main body structure is provided with a bottom circumferential outer edge, and a plurality of supporting posts are evenly fixed to the lower end of the outer edge and fixed in an offshore water.A cavity at the upper end of the main body structure is partitioned into an upper hydraulic cylinder and a lower hydraulic cylinder by a middle partition, the piston component consists of an upper piston, a connecting piston and a lower water-storing piston, and a water-storing cavity is formed in the lower water-storing piston. A hollow supporting post is mounted in the center of the middle partition, a power generation set is mounted at the upper end in the hollow supporting post through a power generation set, and a passage communicated with the cavity in the upper hydraulic cylinder is formed in the top of the hollow supporting post. Plungers are mounted on two sides of the hollow supporting post symmetrically and pass through oil return holes in the middle partition. The wave-energypower generation device has the advantages of high energy utilization efficiency, small occupation area, high power generation efficiency, easiness in detachment and part replacement and low maintenance cost.

Description

technical field [0001] The invention relates to a power generation device, in particular to a wave energy power generation device, which belongs to the technical field of new energy power generation. Background technique [0002] Wave energy comes from wind force, which acts on the seawater to accelerate the wave after thousands of miles, so that the wave has a lot of energy. However, due to the large pulsation of wave energy, it cannot be applied to the power generation system. In energy conversion After the device converts the captured wave energy into mechanical energy, it is usually necessary to set up an energy output system between the generator and the wave energy conversion device to cut peaks and fill valleys, thereby stabilizing the input power of the generator. This system is not only complex in structure, but also The conversion efficiency is low. [0003] The Chinese invention patent with the application number of 201711042907.4 provides a hydraulic wave power ...

AI Technical Summary

Problems solved by technology

This kind of power generation system uses the oil circuit of the hydraulic system to store energy and generate electricity, and the energy is converted into mechanical energy, hydraulic energy, mechanical energy and electric energy in turn. It has experienced multiple energy conversion stages in the middle, which greatly reduces the power generation efficiency; at the same time, it is necessary to set up electric power such as solenoid valves. For control components, once a certain component fails, the overall system will not be able to generate electricity, and the stability is poor; the floating body in the device is placed on th

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