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Tidal energy water turbine

A water turbine and tidal energy technology, applied in hydropower, mechanical equipment, engine components, etc., can solve the problems of rigid blades and flexible blades that cannot be used at the same time, low energy gain coefficient, etc.

Inactive Publication Date: 2012-10-31
BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In order to overcome the deficiencies and defects of existing tidal energy turbines, such as simple structure, low energy gain coefficient, and inability to use rigid blades and flexible blades at the same time, the present invention proposes a tidal energy turbine, which can integrate rigid blades and flexible blades. The advantages of flexible blades can improve the energy gain coefficient of the turbine and make full use of tidal current energy to generate electricity

Method used

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  • Tidal energy water turbine
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Embodiment Construction

[0022] exist figure 1 In the method, the rigid blades and flexible blades of the tidal current energy turbine are connected by direct connection. First install the key 2 to the shaft 1, then install the upper and lower hub 3, then install the single fixed block 8 on the lower hub 3 first, and install the rigid blade 4 on the single fixed block 8, and then install the fixed block 8 on the upper hub 3, Finally, the flexible blade 5 is installed on the rigid blade 4 and fixed by the fastening bolt 6 . When this connection method is adopted, the thrust obtained by the flexible blade 5 is transmitted to the generator through the rigid blade 4, and the thrust obtained by the rigid blade 4 is directly transmitted to the generator. The movement form of each component is described in detail as follows: the flexible blade 5 acts on the rigid blade, the rigid blade 4 transmits the torque to the hub 3, the hub 3 transmits the torque to the intermediate shaft 1 through the key 2, and the ...

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Abstract

The invention relates to a tidal turbine belonging to the technical application field of ocean energy. According to the operation characteristics of the rigid blade and the soft blade of the tidal turbine provided by the invention, two connecting modes of the rigid blade and the soft blade are provided, wherein one mode is characterized in that the direct connection between the rigid blade and the soft blade. The soft blade is installed in the neutral position of the rigid blade, and the acting force is transmitted to a generator by the soft blade through the rigid blade. The other mode is characterized in that the rigid blade and the soft blade are connected indirectly. The rigid blade and the soft blade are all fixed on a wheel hub and act on the wheel hub simultaneously. The join force is transmitted to the generator. The tidal turbine is convenient and rapid to start up and has the advantages of a soft-blade water turbine. The tidal turbine can bear a large torque movement and a high water flow speed and has the advantages of a rigid blade water turbine. Simultaneously, the power efficiency coefficient of the tidal turbine is greater than that of the tidal turbine adopting the rigid blade and the soft blade alone. The tidal turbine provided by the invention is suitable for tidal current energy power generation projects of different sea areas.

Description

technical field [0001] The invention relates to a tidal current energy water turbine, which belongs to the application field of ocean energy technology. Background technique [0002] With the development of society, the demand for electric energy has surged, but the uncontrolled consumption of fossil energy has caused the environment to deteriorate day by day: CO 2 The content is the highest value since 500,000 years, nearly 150 years of CO 2 The increase in content exceeds the increase in the past 20,000 years; the content of methane gas has doubled compared to 1850; in addition, the reserves of fossil energy such as coal and oil are limited and will be exhausted in the near future. The grim situation and enormous pressure of energy forces all countries to turn their attention to the development and utilization of renewable energy. The ocean, which accounts for 71% of the earth's surface, is the largest area that has not been fully developed and utilized as a treasure hou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B3/00F03B3/12F03B13/00
CPCY02E10/223Y02E10/20
Inventor 单忠德张敏戴军乔娟娟战丽张静
Owner BEIJING NAT INNOVATION INST OF LIGHTWEIGHT LTD