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Bionic hydrofoil vortex excited tidal energy conversion device

A conversion device, tidal energy technology, applied in ocean energy power generation, engine components, machines/engines, etc., can solve the problems of high cost of supporting facilities, low energy conversion efficiency, complex structure, etc.

Active Publication Date: 2017-11-03
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problems of complex structure, low energy conversion efficiency, high cost of supporting facilities and dependence of conventional tidal power generation on tidal activities in existing conventional tidal power generation devices, and further provides a bionic hydrofoil vortex-induced flapping tidal energy conversion device

Method used

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  • Bionic hydrofoil vortex excited tidal energy conversion device
  • Bionic hydrofoil vortex excited tidal energy conversion device
  • Bionic hydrofoil vortex excited tidal energy conversion device

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Experimental program
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specific Embodiment approach 1

[0015] Specific implementation mode one: combine Figure 1 to Figure 7 Describe this embodiment, the bionic hydrofoil vortex-excited flapping tidal energy conversion device of this embodiment, it comprises casing 12, through shaft 5, two hydrofoil swing rods 1, two beams 11, two support shafts 4, Two bionic hydrofoils 13, a plurality of excitation permanent magnets 16 and multiple groups of piezoelectric power generation components; each group of piezoelectric power generation components includes a fixed piece 6, two piezoelectric sheets 8 and four vibration permanent magnets 9; Magnet 16 has the same magnetic polarity as the vibrating permanent magnet 9;

[0016] The housing 12 is a cylinder made of non-ferromagnetic material with a cavity. Two hydrofoil swing rods 1 are arranged side by side. The penetrating shaft 5 and multiple sets of piezoelectric power generation components are arranged in the housing 12; the penetrating shaft 5 penetrates On the housing 12 and the two ...

specific Embodiment approach 2

[0024] Specific implementation mode two: combination figure 1 Note that each piezoelectric sheet 8 in this embodiment is a piezoelectric ceramic sheet or a polyvinylidene fluoride sheet. In this way, the piezoelectric ceramic has strong piezoelectricity and high dielectric constant, and can be processed into any shape; the polyvinylidene fluoride sheet has the advantages of flexibility, low density, low impedance and high voltage constant, meeting actual needs. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination figure 1 Note that the bionic hydrofoil vortex-excited flapping tidal energy conversion device in this embodiment also includes two bearing base flanges 3 and two bearing end cover flanges 2; each support shaft 4 is installed on the bearing base through a bearing On the flange 3 , the bearing base flange 3 is in detachable sealing connection with the housing 12 , and each bearing base flange 3 is encapsulated with a bearing end cover flange 2 . In this way, the sealing between the bearing base flange 3 and the housing 12 is realized by the annular polyurethane rubber sealing ring, and the sealing between the bearing base flange 3 and the bearing end cover flange 2 is realized by the annular polyurethane rubber sealing ring. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a tidal energy conversion device with bionic water wings for vortex-induced flapping and relates to an energy conversion device. The tidal energy conversion device solves the problems that an existing conventional tidal power generation device is complex in structure, low in energy conversion efficiency and high in manufacturing cost of matching facilities, and conventional tidal power generation relies on tide movement. The tidal energy conversion device comprises a shell, a through-going shaft, two water wing swing rods, two cross beams, two supporting shafts, the two bionic water wings, multiple shock excitation permanent magnets and multiple sets of piezoelectric power generation assemblies. Each piezoelectric power generation assembly comprises a fixing piece, two piezoelectric plates and four shock-receiving permanent magnets. The two water wing swing rods are arranged side by side, and the through-going shaft and the multiple sets of piezoelectric power generation assemblies are arranged in the shell. The through-going shaft is arranged on the shell in a penetrating mode and is connected with the shell in a sealed mode, and each of the two ends of the through-going shaft is connected with one end of the corresponding supporting shaft; the two supporting shafts are rotatably connected with the shell in a sealed mode, and the other end of each of the two supporting shafts is fixedly connected with the corresponding water wing swing rod. The multiple sets of piezoelectric power generation assemblies are arranged between the two cross beams. The tidal energy conversion device is used for energy conversion and power generation.

Description

technical field [0001] The invention relates to an energy conversion device, in particular to a bionic hydrofoil vortex-excited flapping tidal energy conversion device, which belongs to the field of new energy sources for marine power generation. Background technique [0002] In recent years, with the increasing shortage of fossil energy, the research on new energy has received more and more attention, and ocean energy as a new type of renewable energy has attracted more and more attention. The total reserve of global ocean energy is hundreds or even thousands of times of the world's annual electricity consumption. The tide phenomenon is the periodic fluctuation phenomenon of the earth's seawater under the gravitational action of the moon, the sun and other celestial bodies. It occurs twice a day. The fluctuation is called "tide" during the day and "tide" at night. The tide phenomenon is accompanied by the movement of a large amount of seawater. When the tide is high, a lar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B13/26F03B13/14H02N2/18
CPCY02E10/30Y02P70/50
Inventor 董帝渤陈维山郝亚强石胜君刘军考侯珍秀
Owner HARBIN INST OF TECH
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