An offshore tidal power plant

Abstract

The invention relates to the technical field of marine engineering, and discloses an offshore tidal power generation device including a generator set, a lifting member, a traction rope, a positioning member and a cable, and the lifting member rotates around the positioning member under the action of the traction rope. The offshore tidal power generation device is built far away from the coast, not limited by geographical space, flexible in construction, and more widely used and popularized. Secondly, a single individual is small in size, easy to maintain, does not change the landform, and has little impact on the environment and ocean functions. In addition, it can use the potential energy formed by the tide to generate electricity, and can also use the kinetic energy of the ocean current to generate electricity. After construction, it can generate electricity around the clock , to increase power generation and reduce power generation costs; finally, the application and installation are flexible. On the one hand, the location can be flexibly adjusted with the seasonal changes of ocean currents and tides, and more points can be sent out in the best position. On the other hand, it can be It can be flexibly used on various offshore fixed platforms or movable platforms to increase application scenarios.

Description

technical field [0001] The invention relates to the technical field of marine engineering, in particular to an offshore tidal power generation device. Background technique [0002] The tide is a phenomenon of water level change caused by the gravitational force of the moon or the rotation of the earth. When the tide is high, a large amount of seawater surges in and converts kinetic energy into potential energy. When the tide is low, the potential energy is converted into kinetic energy and rushes back. figure 1 , When the tide is high, the tide flows into the reservoir and becomes potential energy storage, and at the same time drives the motor to rotate to generate electricity; [0003] In 1967, the first large-scale tidal power station - Lens Tidal Power Station was put into commercial operation in France, and it is still in normal operation today, proving that tidal power generation is technically feasible and economically promising, but since the 1980s until now, almost n...

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Problems solved by technology

[0003] In 1967, the first large-scale tidal power station - Lens Tidal Power Station was put into commercial operation in France, and it is still in normal operation today, proving that tidal power generation is technically feasible and economically promising, but since the 1980s until now, almost no The main constraints of newly-built tidal power stations are the high construction cost and the impact on marine functions and the environment: tidal power stations are usually built in bays, have a large reclamation area, and are prone to conflicts with other projects

[0004] Secondly, the form of the reservoir cannot generate electricity when the seawater height does not fluctuate or fluctuates slightly, which restricts the amount of power generation and the improvement of economic benefits, which in turn restricts the application of tidal power generation.

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