Oscillating water column self-exciting type wave energy composite power generation device based on Karman vertex street effect

Abstract

The invention discloses an oscillating water column self-exciting type wave energy composite power generation device based on the Karman vertex street effect and belongs to the technical field of sustainable power generation. The composite power generation device comprises an upper shrinkage gas channel, an upper cavity body, a lower shrinkage gas channel and a lower cavity body which are sequentially connected from top to bottom. A gas input and output opening is formed in the upper portion of the upper shrinkage gas channel. A sea water input and output opening is formed in the lower portionof the lower cavity body. A sleeve is arranged in the upper cavity body. The sleeve divides the upper cavity body into a left chamber, a middle chamber and a right chamber. An upper streaming cylinder and a lower streaming cylinder are arranged in the sleeve. Multiple dielectric elastomer films sequentially arranged are arranged between the upper streaming cylinder and the lower streaming cylinder. First permanent magnets are arranged on the two sides of the middle position of each dielectric elastomer film correspondingly. Second permanent magnets corresponding to the first permanent magnetsone to one and a piezoelectric cantilever beam used for installing the second permanent magnets are arranged in the left chamber and the right chamber correspondingly. The composite power generationdevice can work in a humid environment for a long time, so that permanent and continuous electric energy is provided.

Description

technical field [0001] The invention belongs to the field of sustainable power generation, in particular to an oscillating water column self-excited wave energy composite power generation device based on the Karman vortex street effect. Background technique [0002] With the development of the information age, small electronic equipment lighthouses, sensors and other low-power electrical equipment in coastal areas have become an indispensable part of today's society, and the operation of these equipment is inseparable from continuous and long-term power supply. The service life is limited and it is difficult to supply power for the above-mentioned devices. The turbine generator of the traditional oscillating water column wave energy conversion device cannot work in a humid environment such as the seaside for a long time. How to better use the high-efficiency oscillation in the wave energy conversion device The combination of water column device and power generation device ha...

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Problems solved by technology

[0002] With the development of the information age, small electronic equipment lighthouses, sensors and other low-power electrical equipment in coastal areas have become an indispensable part of today's society, and the operation of these equipment is inseparable from continuous and long-term power supply. The service life is limited and it is difficult to supply power for the above-menti...

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