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A bottom-mounted horizontal axis tidal current energy generation principle and device that can automatically sense the flow direction

A technology of automatic induction and power generation device, applied in the directions of hydropower generation, ocean energy power generation, engine components, etc., can solve the problem of reducing the power generation efficiency of hydraulic turbines, and achieve the effect of improving power generation efficiency, improving power generation efficiency, and good self-starting performance.

Active Publication Date: 2020-08-04
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the flow direction of the tidal current changes, the power generation efficiency of the turbine will be greatly reduced

Method used

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  • A bottom-mounted horizontal axis tidal current energy generation principle and device that can automatically sense the flow direction
  • A bottom-mounted horizontal axis tidal current energy generation principle and device that can automatically sense the flow direction
  • A bottom-mounted horizontal axis tidal current energy generation principle and device that can automatically sense the flow direction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as Figure 1~4 As shown, a bottom-mounted horizontal-axis tidal current energy generation device that can automatically sense the flow direction includes a mounting base, which is fixed on the seabed, and a horn-shaped flow guide 5 is fixed on the installation base. The horn-shaped flow guide 5 There is a water turbine inside, the rear end of the water turbine is connected to the engine room 13, and the upper and lower surfaces of the trumpet-shaped shroud 5 are respectively connected with universal couplings 12, and the universal couplings 12 are respectively connected to the installation base through connecting shafts 10. A flow velocity and direction sensor 11 is also connected between the universal joint 12 connected to the upper surface of the shape shroud 5 and the connecting shaft 10 . The mounting base has high fixing reliability, strong resistance to seawater impact, and high anti-interference performance. The trumpet-shaped shroud 5 has the functions of ...

Embodiment 2

[0043] Such as image 3 , 5 , 6, the present embodiment is on the basis of Embodiment 1, and the further optimization scheme to the trumpet-shaped shroud 5 is as follows: the shroud of the horn-shaped shroud 5 faces the water surface 51 side of the housing for the water The mask shell 511 is arc-shaped to the water surface cover shell 511, and the inner wall of the water surface cover shell 511 is provided with a groove bar 512, and the inside of the groove bar 512 is evenly distributed with a rotating plate 513, and the rotating plate 513 is rotatably fixed in the concave hole through a connecting rod. The inner wall of the groove bar 512 . The design of the groove bar 512 improves the flow diversion effect of the trumpet-shaped dome 5 at the arc-shaped water surface cover shell 511, reduces the frontal impact force of the tide on the horn-shaped dome 5, and improves the tide capture ability at the same time. power generation benefits. And the rotating plate 513 evenly dis...

Embodiment 3

[0046] Such as Figure 7-9 Shown: this embodiment is on the basis of embodiment 1, and the further optimization plan to installation base is: the outer surface of installation base is all connected with filter screen 18, and the opposite side of the grid of filter screen 18 is connected with rotating bar 19, There is one and only one rotating bar 19 in the grid involved in the circle formed by the radius of the four-grid grid on the surface of the filter screen 18. The rotating bar 19 includes a winding elastic rope 191, and the winding elastic rope 191 is wound around the turning point and connected. There is a cylindrical rod 192 . The setting of the filter screen 18 can effectively prevent impurities in the tidal water from affecting the work of the water turbine and improve the reliability of the device. The rotating bar 19 is connected to the grid at the center of the circle formed with the length of the four-grid grid as the radius. This setting can effectively avoid wi...

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Abstract

The invention discloses a bottom-supported horizontal axis tidal current energy power generation principle and device achieving automatically sensing of a flow direction, and belongs to the technicalfield of tidal current energy power generation. The device comprises a mounting base, the mounting base of the device is fixed to a sea floor, a horn-shaped diversion hood is fixed to the mounting base and internally provided with a water turbine, the rear end of the water turbine is connected to an engine room, universal couplers are connected with the upper and lower surfaces of the horn-shapeddiversion hood respectively and connected to the mounting base through connecting shafts respectively, and a flow velocity flow direction sensor is also connected between the universal coupler connected with the upper surface of the horn-shaped diversion hood and the corresponding connecting shaft. The device can automatically adapt to the change of the flow direction of tidal current, the utilization rate of the tidal current is high, the horn-shaped diversion hood which has the function of guiding the flow and can increase the flow velocity of the tidal current is arranged, and the device ishigh in reliability, high in work efficiency and great in power generation benefits.

Description

technical field [0001] The invention belongs to the technical field of tidal current energy generation, and in particular relates to a bottom-mounted horizontal axis tidal current energy generation principle and device which can automatically sense the flow direction. Background technique [0002] Today's society mainly relies on traditional fossil energy, and 74% of the world's total energy consumption comes from fossil energy such as coal, oil, and natural gas. With the development of the world economy, the rapid increase of population and the improvement of living standards, the demand for energy continues to increase, and the pressure of environmental pollution is also increasing. Renewable energy and clean energy have received great attention and attention. The development and utilization of ocean energy is an important basis for my country to build an environment-friendly and resource-saving society. [0003] The tidal current mainly refers to the regular sea current ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03B13/26F03B11/00F03B3/18F03B3/12
CPCF03B3/121F03B3/18F03B11/00F03B13/26Y02E10/20Y02E10/30
Inventor 梁娟
Owner ZHEJIANG OCEAN UNIV
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