Low-flow-rate or surge tidal current energy-based power generation device

Abstract

The invention discloses a low-flow-rate tidal current energy-based power generation device. The device comprises a mounting frame, wherein a rotating shaft parallel to the water surface is arranged inthe mounting frame, a plurality of groups of force taking wheels are arranged on the rotating shaft, each group of force taking wheels is composed of a plurality of force taking blade boards distributed along the circumference of the rotating shaft, and the force taking blade boards on two adjacent groups of force taking wheels are distributed in a staggered manner; and the width of the joint between each force taking blade board and the rotating shaft is larger than the width of the suspended tail end, each force taking blade board is installed perpendicular to the rotating shaft, and the center line of each force taking blade board and the rotating shaft are in a vertical or non-vertical state. According to the device, through the structural design, the problem that normal power generation cannot be conducted under the condition of a low flow rate or surge is solved, the contact surfaces between the low-speed tidal current and the force taking blade boards are more and smoother through the staggered installation of adjacent force taking blade boards, and the inter-group turbulent flow and eddy current can also be eliminated; and each force taking blade board being inclined, provided with a mesh board and narrowed in the suspended end is designed, so that the inter-plate turbulent flow and eddy current is solved, and finally the stable power generation based on low-flow-ratetidal current energy can be achieved.

Description

Technical field [0001] The invention relates to a low-velocity or surge current power generation device, belonging to the technical field of ocean current power generation equipment. Background technique [0002] Under the low velocity of ocean currents, the existing ocean current power generation device cannot be driven. As for whether the power generation device used in the unidirectional flow water area such as rivers can be used in this low-velocity ocean current, such as the structure given in the patent CN2010200000508.9 water flow power generation device, the rolling wheel, the blade of the rotating wheel , Partly located under the water surface, the water flow drives the rotating wheel to rotate, and the generator shaft of the generator is driven to rotate through the transmission mechanism, and the generator converts the kinetic energy into electric energy. In theory, this method should be able to do work when pushed by the current, but in the tide, we found that betwee...

AI Technical Summary

Problems solved by technology

Theoretically, this method should be able to do work if there is water to push it, but in the tidal current, we found that between the adjacent paddles of the rotating wheel in the tidal current, the facing surface of a single paddle will generate turbulence, while the back surface will generate turbulence. Eddy currents will be generated, and eddy currents will also be formed between multiple rolling wheels, resulting in the entire device being unable to move at all in low-flow water, coupled with mechanical losses, there is no possibility of power generation

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