Bidirectional tidal current energy power generation device based on Savonius rotor

Abstract

According to the bidirectional tidal current energy power generation device based on the Savonius rotors, two turbine rotor structures arranged in a flow guide box body in parallel are adopted, two S-shaped flow guide plates of a central symmetry structure are arranged on the two sides of the flow guide box body, and the opening positions of the two ends of the flow guide box body are each provided with an arc flow guide plate; when the two S-shaped flow guide plates on the two sides of the turbine rotor directly face the tidal current direction, one S-shaped flow guide plate plays a role in collecting flow for propelling blades of the adjacent turbine rotor, the other S-shaped flow guide plate reduces impact of the tidal current on rotating blades of the adjacent turbine rotor, and when the tidal current direction is changed, the functions of the two flow guide plates are exchanged accordingly, so that the effect of collecting flow is achieved. A bidirectional tidal current energy power generation device is formed; the two arc flow guide plates between the two turbine rotors have the functions of flow collection and impact prevention at the same time, the two adjacent rotors generate the coupling gain effect, the generating capacity of the rotors can be mutually increased, and the generating power of the device is greatly improved under the condition that the overall device occupies a small area.

Description

technical field [0001] The invention belongs to the field of tidal current energy generation, and in particular relates to a bidirectional tidal current energy generation device based on a Sabnius rotor. Background technique [0002] With the gradual consumption of non-renewable energy, more and more attention is paid to renewable energy, especially renewable clean energy. Electric energy is an indispensable main energy in daily life, and its source depends on wind energy, water energy or thermal power generation. The tidal energy in the ocean is a large proportion of the ocean energy, and its reserves are huge and the flow is regular. Using the tidal energy to generate electricity has become a feasible and effective trend. [0003] At present, hydro turbines are mainly used for power generation. For tidal current energy, the resistance type vertical axis tidal current power generation equipment is mainly used. Its operation has nothing to do with the flow direction, the sta...

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Problems solved by technology

[0003] At present, water turbines are mainly used for power generation. For tidal current energy, resistance type vertical axis tidal current power generation equipment is mainly used. Its operation has nothing to do with the flow direction, and the starting flow rate is low and the torque is large. , especially suitable for use in low-velocity sea areas, but subject to the structural limitations of resistance-type vertical-axis tidal current power generation equipment, this type of turbine has low efficiency, making its application much lower than other types of turbines, and it cannot adapt to frequent changes in tidal current direction. It cannot fully exert its turbine efficiency under the action of one-way flow

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