Ocean power generation device

Abstract

The invention provides an ocean power generation device comprising a frame, water turbines arranged in the frame in parallel, power generation modules and rolling door type load adjustment modules. The frame comprises multiple vertically-arranged semi-submersible type suspended float bowls which are hollow cylinders and mutually connected and arranged in water, multiple steel stay cables used forconnecting the float bowls, multiple mooring anchor chains and multiple anchors, wherein the multiple mooring anchor chains and the multiple anchors are connected with the frame and arranged in waterto limit the position of the frame. Each rolling door type load adjustment module comprises a water guide unit and a driver. Each water guide unit comprises at least two water guide plates which are connected side by side. One end of each water guide unit is fixedly connected with a roller shaft. Each driver is connected with the corresponding roller shaft and drives the roller shaft to rotate soas to spread or fold the corresponding water guide unit. The ocean power generation device can effectively utilize ocean energy to generate power and is simple in equipment, easy to maintain and can be effectively put into large-scale production.

Description

technical field [0001] The invention belongs to the field of ocean energy power generation, and in particular relates to an ocean energy power generation device. Background technique [0002] Ocean energy (including tidal current energy, wave energy, and ocean current energy) refers to the energy of seawater flow. As a renewable energy source, it has abundant reserves and wide distribution, and has excellent development prospects and value. The use of ocean energy is mainly to generate electricity, and its working principle is similar to that of wind power and conventional hydropower, that is, the mechanical energy of seawater is converted into electrical energy through an energy conversion device. Specifically, first seawater hits the water turbine, and the water turbine converts the energy of the water flow into rotating mechanical energy, and then the water turbine drives the generator to generate electricity through the mechanical transmission system, and finally convert...

AI Technical Summary

Problems solved by technology

However, only one or two hydroelectric generators are used. In order to increase the power generation, the diameter of the impeller usually needs to be made very large, which will greatly reduce the speed of the impeller and increase the torque at the same time, resulting in friction between the central shaft and the gearbox. Larger, higher cost of center shaft and gearbox

In addition, the scale of the entire power generation device will be limited, and the cost of the power generation device will remain high, which restricts the development of ocean energy power generation devices

[0005] However, at present, technicians in the field of ocean energy power generation have technical prejudices, and only focus on the research and development of how to enlarge the impeller part of the hydro-generator or improve the structure of the impeller blades to increase the power generation of a single hydro-generator

At present, no one in this field has studied how to increase the power generation and reduce the cost to be suitable for commercial use without changing the impeller.

[0006] In addition, due to the instability of ocean energy (especially the large change in the flow rate of water), the existing ocean energy power generation devices have problems such as unstable power generation and large fluctuations, which lead to excessive investment and cannot be commercialized.

Specifically, when the water velocity is low, the ocean energy power generation device has the disadvantage of insufficient turbine rotation, so that the power generation device cannot effectively capture ocean energy.

When the water velocity is high, the water turbine rotates too fast, resulting in a sharp increase in the output power of the power generation, which exceeds the load of the entire device and cannot be loaded

Moreover, the electric energy generated by existing ocean energy power generation devices cannot be directly exported for use.

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