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Combined tidal current energy vertical shaft water turbine

A technology of tidal current energy and vertical axis, applied in the field of hydraulic turbine machinery, can solve the problems of low start-up performance, and achieve the effect of simple structure, high reliability, convenient scale production and array arrangement

Active Publication Date: 2013-04-24
OCEAN UNIV OF CHINA
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AI Technical Summary

Problems solved by technology

As a conversion device for ocean tidal energy and kinetic energy, water turbines are the core component of the development and utilization of tidal current energy. The quality of its hydrodynamic performance is the key to the effective development and utilization of tidal current energy. Vertical axis turbines are not affected by the direction of flow. , the structure is simple, and it is a research hotspot at home and abroad. However, although the fixed vertical axis turbine has high conversion efficiency, its start-up performance is low.
[0003] The development trend of tidal current energy turbines in the future is to develop high-efficiency, high-reliability, and low-cost tidal energy vertical-axis turbines. This requires tidal energy turbines to take into account start-up performance, efficient tidal energy conversion rate and structural reliability. Now many Tidal current energy technology is not yet mature

Method used

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  • Combined tidal current energy vertical shaft water turbine
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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] see Figure 1-Figure 6 , the present invention includes an external H structure 1, an internal S structure 2, a transmission structure 3, and an external support frame structure 4.

[0024] The external H structure 1 and the internal S structure 2 of the composite tidal energy vertical axis turbine. The H structure 1 includes a spreader 102 and three NACA0018 blades 101. The interval between the three blades is 120 degrees, and the tidal energy utilization rate is high; the S structure The number of blades 201 of 2 is 2, the number of structural stages is 2, the ratio of height to diameter of the S wheel height to the diameter of the blade is 4, and the ratio of the width of the overlapping part between the two blades to the diameter of the blade is 0.1; the H structure The upper and lower booms are fixed on the transmission structure with screws, and the bla...

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Abstract

The invention relates to a combined tidal current energy vertical shaft water turbine. The combined tidal current energy vertical shaft water turbine comprises an outer H structure, an inner S structure, a transmission structure and an outer frame supporting structure. S vanes are nested in H vanes and connected with a bearing structure through an extending arm of the H structure, the S vanes are directly fixed on a bearing, the H vanes and the S vanes move at the same rotating speed, movement displacement difference is absent, thereby the S vanes with high starting performances can drive an H wheel, and the using ratio of the energy is improved. The combined tidal current energy vertical shaft water turbine has the advantages of being high in efficiency, tidal current energy conversion efficiency and reliability, fast in starting, low in costs and good in entire stability.

Description

technical field [0001] The invention belongs to the mechanical field of water turbines, and in particular relates to a composite tidal current energy vertical axis water turbine. Background technique [0002] Tidal current energy is a clean and renewable new energy source, and my country's tidal current energy resources are the most abundant in the world. As a conversion device for ocean tidal energy and kinetic energy, water turbines are the core component of the development and utilization of tidal current energy. The quality of its hydrodynamic performance is the key to the effective development and utilization of tidal current energy. Vertical axis turbines are not affected by the direction of flow. , the structure is simple, and it is a research hotspot at home and abroad. However, although the fixed vertical axis turbine has high conversion efficiency, its start-up performance is low. [0003] The development trend of tidal current energy turbines in the future is to ...

Claims

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Application Information

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IPC IPC(8): F03B3/00F03B3/12
CPCY02E10/223Y02E10/20
Inventor 刘臻史宏达王俊芳杨万昌曲恒良赵环宇马哲曲娜燕浩然唐乃成张莹
Owner OCEAN UNIV OF CHINA
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