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Flap type vertical axis water turbine

A hydraulic turbine, vertical axis technology, applied in the directions of hydropower generation, mechanical equipment, machines/engines, etc., can solve the problems of reducing energy harvesting efficiency and hindering the rotation of hydraulic turbines, so as to improve energy harvesting efficiency, improve positive impact, and increase strength. Effect

Inactive Publication Date: 2016-06-01
ZHEJIANG OCEAN UNIV
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Problems solved by technology

[0005] The defect of the current conventional tidal current energy generation unit is that: if the ordinary vertical axis turbine is used, when the tidal flow direction is perpendicular to the axial direction of the turbine, the blades of the turbine will rotate in the opposite direction to the direction of the incoming flow for half of the time, and the incoming flow will hinder the turbine. rotation
If the turbine is designed to rotate clockwise, when the blades of the turbine turn to the left, the direction of rotation will be opposite to the flow direction of the current flow, hindering the rotation of the turbine and reducing its energy-capturing efficiency

Method used

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  • Flap type vertical axis water turbine
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Embodiment Construction

[0015] Such as figure 1 The flap-type vertical-axis turbine shown includes a propeller hub, the center of which is fixed with the main shaft 4 of the flap-type vertical-axis turbine, and five blades 1 are arranged equiangularly on the periphery of the propeller hub, and the top of the blade 1 A flap 2 is provided, and the flap is hinged to the blade 1 through a flap pivot 3 . Both the blade 1 and the flap 2 should adopt a flat plate structure. Four rows of reinforcing ribs 11 are arranged horizontally (perpendicular to the axial direction of the main rotating shaft 4 ) on each paddle 1 to improve the structural strength of the paddle.

[0016] The main rotating shaft 4 is connected with a sun gear, and the flap pivot 3 is provided with planetary gears, and the planetary gears mesh with the sun gears. Both the sun gear and the planetary gear are located in the gearbox at the bottom of the turbine and are driven by a drive mechanism connected to the gearbox. When the sun gear...

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Abstract

The invention discloses a flap type vertical axis water turbine. The flap type vertical axis water turbine comprises a propeller hub and paddles arranged on the periphery of the propeller hub at equal angles, and flaps are arranged at the top ends of the paddles and are hinged to the paddles through flap pivots. An adjustable included angle is formed between the flaps and main bodies of the paddles, forward impact exerted on blades of the water turbine by tides is improved by adjusting the included angle, and the energy utilization rate is increased. The flap type vertical axis water turbine is simple in structure, practical and safe and can increase the utilization rate of the tide energy.

Description

technical field [0001] The invention relates to the technical field of tidal current energy generation, in particular to a flap-type vertical axis water turbine. Background technique [0002] The tidal current mainly refers to the regular sea current generated along with the tidal phenomenon, and the tidal current changes its magnitude and direction twice a day. Tidal energy is different from tide. Tidal is the rise and fall of seawater caused by high tide and ebb tide. Tidal current is the horizontal movement of seawater. The energy carried by tide is potential energy, which can be utilized by damming and storing water for power generation, while tidal energy power generation is Directly use tidal currents to impact mechanical devices such as impellers to drive generators to generate electricity. [0003] Compared with conventional energy sources, tidal current energy has the following advantages: clean and renewable; large total energy reserves; regular and predictable ch...

Claims

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Application Information

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IPC IPC(8): F03B3/12
CPCF03B3/121Y02E10/20
Inventor 王化明王乐吴健
Owner ZHEJIANG OCEAN UNIV
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