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Comprehensive utilization system for marine energy

An energy and power generation system technology, applied in the field of comprehensive utilization of offshore energy, can solve the problems of unstable output power of offshore wind turbines, poor reliability and economy, low utilization efficiency of wave energy and ocean currents, etc.

Active Publication Date: 2013-05-01
INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] In order to solve the problems of unstable output power of offshore wind turbines, low utilization efficiency of wave energy and ocean current energy, and poor reliability and economy, the present invention proposes a comprehensive utilization system for offshore energy

Method used

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  • Comprehensive utilization system for marine energy
  • Comprehensive utilization system for marine energy
  • Comprehensive utilization system for marine energy

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific examples.

[0023] As shown in Fig. 1(a) and Fig. 1(b), the wind turbine tower is fixed on the seabed, and the sea wind drives the wind wheel 1 to rotate to generate electricity. Several floating platforms 2 are arranged on the sea surface around the wind turbine, fixed by a column 3 fixedly connected to the seabed, air holes 4 are opened on the side wall of the floating platform, connecting hoses 5 connect each floating platform, and the outlets of the hoses are installed One-way ventilation valve 6 ensures the one-way flow of air flow. Wherein there is an air hole respectively on the top of two floating platforms, and the single ventilation valves 7 and 8 in opposite directions are installed respectively, as the interface between the air chamber in the floating platform and the out...

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Abstract

The invention discloses a comprehensive utilization system for marine energy, which comprises a wind turbine, a wave energy converting device and an ocean current energy converting device, wherein the ocean current energy converting device comprises a plurality of floating platforms which are arranged on the periphery of the wind turbine; the floating platforms have closed tops and opening lower ends; each of the floating platforms is fixedly connected with a vertical column which is fixed on seabed; the floating platforms are communicated through connecting pipes which are mounted on side walls of the floating platforms; air holes are respectively formed at the tops of two floating platforms; one-way ventilating valves in inverse directions are respectively mounted; one floating platform can only suck air while the other floating platform can only discharge air; an air turbine is mounted at the top of the floating platform which can only discharge air; and an output shaft of the floating platform and the output shaft of the ocean current energy converting device realize the power combination through a gear system so as to drive a generator for generating electricity. The three generating forms, namely, marine wind energy, wave energy and ocean current energy, are comprehensively utilized by the system, the complementation of electric power under a complex environment is realized, the stability of power output is ensured and the grid-connection is benefited. Besides, the impact of the wave to a tower and the turbulivity of the ocean current are reduced by the wave energy converting device.

Description

technical field [0001] The invention relates to a system for comprehensive utilization of marine energy, in particular to a system for comprehensive utilization of offshore piling-type offshore wind energy, wave energy and ocean current energy. The system has the characteristics of good system stability and high economic benefits. Background technique [0002] There are abundant energy stored in the ocean, among which wind energy, wave energy and ocean current energy are inexhaustible green renewable energy. At present, the power generation of a single offshore wind turbine reaches the MW level, but due to the unstable wind speed, the output power of the wind turbine is easy to fluctuate, and it is difficult to directly integrate it into the local power grid. Wave energy is also unstable, and the energy conversion device has low power generation efficiency and takes up a lot of space. It needs large-scale utilization to obtain effective benefits. Ocean current energy is rel...

Claims

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Application Information

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IPC IPC(8): F03B13/24F03D9/02F03D11/00
CPCY02E10/38Y02E10/722Y02E10/30Y02E10/72
Inventor 杨科吴蔚徐建中
Owner INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI
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