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CN113135272B - Floating ocean platform module and ocean platform with wind energy, solar energy and wave energy power generation functions - Google Patents

Floating ocean platform module and ocean platform with wind energy, solar energy and wave energy power generation functions Download PDF

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Publication number
CN113135272B
CN113135272B CN202110287907.0A CN202110287907A CN113135272B CN 113135272 B CN113135272 B CN 113135272B CN 202110287907 A CN202110287907 A CN 202110287907A CN 113135272 B CN113135272 B CN 113135272B
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energy
power generation
wave
ocean platform
generation device
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CN113135272A (en
Inventor
姜胜超
谢凌宇
张桂勇
宗智
孙哲
孙雷
周波
周力
张之凡
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Dalian University of Technology
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Dalian University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1885—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem
    • F03B13/189—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem acting directly on the piston of a pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/20—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/24—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/007—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with means for converting solar radiation into useful energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/4466—Floating structures carrying electric power plants for converting water energy into electric energy, e.g. from tidal flows, waves or currents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Wind Motors (AREA)

Abstract

The invention provides a floating ocean platform module and an ocean platform which have wind energy, solar energy and wave energy power generation functions. The invention comprises an above-water part and an underwater part, wherein the underwater part comprises an upright post and a buoyancy tank, an oscillating water column wave power generation device for converting wave energy into electric energy is arranged in the upright post, and an oscillating floater wave power generation device for converting the wave energy into the electric energy is arranged between the upright posts; the overwater part comprises a deck, wherein an upright rod-shaped structure is arranged above the deck, a solar photovoltaic power generation device for converting solar energy into electric energy is arranged at the top end of the rod-shaped structure, and a vertical shaft fan power generation device for converting wind energy into electric energy is arranged in the middle of the rod-shaped structure. The invention can utilize waves to generate electricity, breaks through the limitation of single-degree-of-freedom energy harvesting of the traditional wave power generation device in the past, can harvest energy in three directions of heaving, surging and swaying, and improves the energy conversion efficiency.

Description

Floating ocean platform module and ocean platform with wind energy, solar energy and wave energy power generation functions
Technical Field
The invention relates to the field of ship and ocean engineering and the technical field of new energy and clean energy, in particular to a floating ocean platform module and an ocean platform which have the functions of wind energy, solar energy and wave energy for power generation.
Background
The ocean is taken as an important source of renewable energy, comprises various different energies such as solar energy, wind energy, wave energy and the like, and how to effectively utilize the ocean energy becomes one of important fields of new energy development. Compared with the storage of European ocean energy, the general density of ocean energy resources in China is lower, so that the energy conversion efficiency of the traditional ocean energy equipment is lower, the large-scale development and use of the traditional ocean energy equipment are limited, and the ocean energy equipment becomes a bottleneck problem in the research and development of the ocean energy in China.
Disclosure of Invention
According to the technical problems, the floating ocean platform module and the ocean platform which can integrate and operate various energy sources in a unified operation system, realize the ladder utilization of different energy sources and achieve cooperative scheduling and have the power generation of wind energy, solar energy and wave energy are provided. The invention can tightly integrate the capturing, conversion, power generation and power supply of three energy sources of wind, light and wave into the same system, improve the power generation efficiency of the wave energy through the spatial large-scale arrangement of two wave energy devices, realize the complementation of light energy and wind energy power generation through the combined arrangement of photovoltaic and a fan, and realize the stable output of power generation under different ocean scenes.
The oscillating floater wave power generation device adopts a double-cavity structure, the utilization efficiency of wave energy is greatly improved, the oscillating floater wave power generation device and the oscillating water column wave power generation device both adopt a structure that multiple air chambers or cavities are connected with the same turbine power generation device, the energy consumption is reduced, the double turbines below the deck platform are turned to the same direction, and the utilization rate of energy is further improved.
The technical means adopted by the invention are as follows:
a floating ocean platform module and an ocean platform which have the power generation functions of wind energy, solar energy and wave energy comprise an above-water part and an underwater part, wherein the above-water part comprises a floating ocean platform serving as a deck platform, a rectification gas pipeline is arranged below the deck, and two turbines are arranged in the middle of the deck and are connected with the rectification gas pipeline; a vertical shaft fan power generation device used for converting wind energy into electric energy is arranged above the deck, and a solar photovoltaic power generation device used for converting solar energy into electric energy is arranged at the top end of the rod-shaped structure of the vertical shaft fan and is connected with the vertical shaft fan through a universal shaft; the underwater part comprises a stand column and a buoyancy tank, an oscillating floater wave power generation device for converting wave energy into mechanical energy is arranged on the buoyancy tank, the oscillating floater wave power generation device adopts a double-cavity structure, a hydraulic system is arranged in a lower cavity, a floater drives a hydraulic rod to reciprocate to push a hydraulic motor to rotate so as to drive a generator to generate power and convert the mechanical energy into electric energy, an upper cavity is connected with the rectified gas pipeline, and an outlet of the gas pipeline is connected with a turbine below a deck; an oscillating water column wave power generation device for converting wave energy into mechanical energy is arranged in the upright post, an air chamber and a connecting part are arranged in the upright post, and the air chamber is connected with an air inlet of another turbine through a rectification gas pipeline below the deck; the rectification gas pipeline is connected with each air chamber and the cavity, air in the air chambers and in the cavity is respectively guided to the two turbines below the deck, and the two turbines below the deck are in the same steering direction.
Further, oscillating water column wave power generation facility includes turbine power generation facility, the stand is the cavity structure, including gas pipeline and air chamber, the air chamber is the cavity of compriseing stand inside wall and gas pipeline, and platform deck below sets up gas duct, the installation is connected to gas duct turbine power generation facility's air inlet, during operation stand cavity below is full of the sea water, and stand cavity top is full of the air, makes the air change in the cavity based on the fluctuation of wave, and when the valve was opened, the air got into the air chamber through connecting portion, and then got into rectification gas pipeline and reachd deck middle part turbine power generation facility's air inlet, promoted the turbine and rotated to turn into the electric energy with mechanical energy.
Further, the natural frequency of oscillation of the oscillating water column wave power plant is obtained by:
Figure BDA0002981243300000021
wherein: g is the acceleration of gravity; t is the wave period; s is the cross-sectional area of the air chamber; d is the height of the water column.
The oscillating floater wave power generation device comprises an upper cavity and a lower cavity, the oscillating floater is in contact with seawater and moves with waves in a lifting mode, the lower cavity is provided with a hydraulic system, the floater drives a hydraulic rod in a hydraulic cylinder to reciprocate, hydraulic oil in an oil tank is discharged into an energy accumulator through a one-way valve to be stored, when the energy accumulator reaches a certain pressure, an electromagnetic valve is opened to release the hydraulic oil and push a hydraulic motor to rotate, a generator is driven to generate electricity, mechanical energy is converted into electric energy, after the hydraulic oil is released, the pressure in the energy accumulator is reduced to an initial value, the electromagnetic valve is closed, the energy accumulator is filled with oil and enters the next cycle, a manual valve used for controlling the opening and closing of the energy accumulator is arranged between the energy accumulator and the hydraulic circuit, and a speed regulating valve used for controlling the rotating speed of the hydraulic motor is arranged between the electromagnetic valve and the hydraulic system. The upper cavity is connected with a rectification gas pipeline below the deck, and gas pipeline outlets of the oscillation floater wave power generation devices are rectified and connected with a turbine gas inlet below the deck to push the turbine to rotate so as to convert mechanical energy into electric energy.
Further, the oscillating float wave power plant float heave natural frequency is obtained by the following formula:
Figure BDA0002981243300000031
wherein: m is the float mass; a is33As an additional mass; rho is the density of the seawater; a is the area of the water surface in the floater; k spring rate under the rope.
Furthermore, the solar photovoltaic power generation device comprises a photovoltaic solar panel, the lower end of the photovoltaic solar panel is fixedly arranged at the upper end of the rod-shaped structure of the vertical shaft fan, the universal shaft is arranged at the joint, the orientation of the solar panel can be adjusted, the photovoltaic solar panel is used for keeping the photovoltaic solar panel facing the sunlight, and the output end of the photovoltaic solar panel is connected with a heat energy generator to convert solar energy into electric energy.
Furthermore, the vertical axis wind turbine power generation device comprises a blade and a connecting support, the connecting support is fixedly connected with the blade, the connecting support is rotatably connected to the vertical rod-shaped structure, and the blade of the vertical axis wind turbine rotates to drive the rotor of the generator to rotate, so that electric energy is generated.
Further, the buoyancy tanks are moored to the sea floor by diagonal pull anchors or tension leg anchors.
The invention can utilize waves to generate electricity, breaks through the limitation of single-degree-of-freedom energy harvesting of the traditional wave power generation device in the past, can harvest energy in three directions of heaving, surging and swaying, and improves the energy conversion efficiency. And further provides a calculation method of the self-oscillation periods of the two, and the self-oscillation period can be designed according to the local wave frequency, so that a better wave power generation effect is obtained. When the water depth is shallow, the submerged body at the bottom of the wave energy device can be placed on the sea bottom; when the water depth is deeper, the bottom submerged body can be connected with mooring systems such as anchor chains and the like to float on the sea. The device can be used independently, and can also be used in an array mode to achieve a better energy obtaining effect. Based on the reasons, the invention can be widely popularized in the technical fields of ocean engineering, coastal engineering and clean energy.
Drawings
The present invention provides two embodiments, in order to more clearly illustrate the embodiments or technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a plan view of embodiment 1 of the present invention.
Fig. 2 is a front view of embodiment 1 of the present invention.
Fig. 3 is a top view of embodiment 2 of the present invention.
Fig. 4 is a front view of embodiment 2 of the present invention.
Fig. 5 is a diagram of a vertical axis fan power generation device and a solar photovoltaic power generation device according to an embodiment of the invention.
Figure 6 is a diagram of an oscillating water column wave power plant according to an embodiment of the invention.
Fig. 7 is a diagram of an oscillating float wave power unit according to an embodiment of the invention.
In the figure: 1. a solar photovoltaic power generation device; 2. a vertical axis fan power generation device; 3. a semi-submersible offshore platform module; 4. an oscillating water column wave power generation device; 5. oscillating a float wave power plant; 6. a turbine; 7. an anchor chain; 8. a buoyancy tank; 9. a blade; 10. a generator; 11. a vertical rod-like structure; 12. a cardan shaft; 15. a connecting portion; 16. a rectified gas pipeline; 17. a valve; 18. a float; 19. a hydraulic cylinder; 20. a one-way valve; 21. an oil tank; 22. a hydraulic motor; 23. a generator; 24. a speed regulating valve; 25. an electromagnetic valve; 26. an accumulator; 27. a manual valve; 28. a cavity.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, 2 embodiments of the present invention disclose a floating ocean platform module and an ocean platform having wind energy, solar energy and wave energy power generation functions, including an above-water part and an under-water part, wherein the above-water part includes a floating ocean platform 3 as a deck platform, a rectified gas pipeline 16 is arranged below the deck, and two turbines 6 are arranged in the middle of the deck and connected with the rectified gas pipeline 16; a vertical shaft fan power generation device 2 for converting wind energy into electric energy is arranged above the deck, and a solar photovoltaic power generation device 1 for converting solar energy into electric energy is arranged at the top end of a vertical shaft fan rod-shaped structure 11 and is connected by a universal shaft 12; the underwater part comprises a vertical column 13 and a buoyancy tank 8, an oscillating floater wave power generation device 5 for converting wave energy into mechanical energy is arranged on the buoyancy tank 8, the oscillating floater wave power generation device 5 adopts a double-cavity structure, a hydraulic system is arranged in a lower cavity, a floater 18 drives a hydraulic rod to reciprocate to push a hydraulic motor 22 to rotate so as to drive a generator 23 to generate power and convert the mechanical energy into electric energy, an upper cavity is connected with a rectification gas pipeline 16 below a deck, and an outlet of the gas pipeline is connected with a turbine 6 below the deck; the vertical column 13 is internally provided with an oscillating water column wave power generation device 4 for converting wave energy into mechanical energy, an air chamber 14 and a connecting part 15 are arranged in the vertical column, and the air chamber 14 is connected with an air inlet of another turbine through a rectification gas pipeline 16 below a deck; the rectification gas pipeline is connected with each air chamber 14 and the cavity 28, air in the air chambers 14 and air in the cavity 28 are respectively guided to the two turbines 6 below the deck, and the two turbines 6 below the deck rotate in the same direction, so that the energy conversion efficiency is further improved. When the water depth is shallow, the submerged body at the bottom of the wave energy device can be placed on the sea bottom; when the water depth is deeper, the bottom submerged body can be connected with mooring systems such as an anchor chain 7 and the like to float on the sea.
Oscillating water column wave power generation facility 4 includes turbine power generation facility, stand 13 is the cavity structure, including gas pipeline 16, air chamber 14 and connecting portion 15, air chamber 14 is the cavity of compriseing stand inside wall and gas pipeline 16, and 3 below settings on platform deck the gas duct, the installation is connected to the gas duct the air inlet of turbine power generation facility, during operation stand cavity below is full of the sea water, and stand cavity top is full of the air, makes to have the cavity interior air change based on the fluctuation of wave, and when valve 17 opened, the air got into air chamber 14 through connecting portion 15, and then got into rectification gas pipeline 16 and reachs deck middle part turbine power generation facility's air inlet, promoted turbine 6 and rotated to turn into the electric energy with mechanical energy.
The natural frequency of oscillation of the oscillating water column wave power plant 4 is obtained by:
Figure BDA0002981243300000051
wherein: g is the acceleration of gravity; t is the wave period; s is the cross-sectional area of the air chamber; d is the height of the water column.
The oscillating floater wave power generation device 5 comprises an upper cavity 28 and a lower cavity 28, the oscillating floater 18 is contacted with seawater and moves with the waves, the lower cavity is provided with a hydraulic system, the floater 18 drives a hydraulic rod in a hydraulic cylinder 19 to reciprocate, hydraulic oil in an oil tank 21 is discharged into an energy accumulator 26 through a one-way valve 20 to be stored, when the accumulator 26 reaches a certain pressure, the solenoid valve 25 opens, releasing the hydraulic oil, pushing the hydraulic motor 22 to rotate, therefore, the generator 23 is driven to generate electricity, mechanical energy is converted into electric energy, after hydraulic oil is released, the pressure in the energy accumulator 26 is reduced to an initial value, the electromagnetic valve 25 is closed, the energy accumulator 26 is filled with oil and enters the next cycle, a manual valve 27 for controlling the opening and closing of the energy accumulator is arranged between the energy accumulator 26 and a hydraulic loop, and a speed regulating valve 24 for controlling the rotating speed of the hydraulic motor 22 is arranged between the electromagnetic valve 25 and a hydraulic system. The upper cavity is connected with a rectification gas pipeline 16 below the deck, and the gas pipeline outlets of the oscillation floater wave power generation devices 5 are rectified and connected with the gas inlet of a turbine 6 below the deck to push the turbine 6 to rotate so as to convert mechanical energy into electric energy.
The oscillation floater wave power generation device 5 has the following formula that the natural oscillation frequency of the floater 18 is obtained:
Figure BDA0002981243300000061
wherein: m is the float mass; a is33As an additional mass; rho is the density of the seawater; a is the area of the water surface in the floater; k spring rate under the rope. As a preferred embodiment, the shape of the float is centrosymmetric, in this embodiment it is cylindrical, and by designing the spring stiffness, it is ensured that the resonance periods of the oscillating water column wave power plant 4 and the oscillating float wave power plant 5 are identical.
The solar photovoltaic power generation device 1 comprises a photovoltaic solar panel, the lower end of the photovoltaic solar panel is fixedly arranged at the upper end of a rod-shaped structure of the vertical shaft fan 2, a universal shaft 12 is arranged at the joint, the orientation of the solar panel can be adjusted, the solar panel is used for keeping the photovoltaic solar panel facing sunlight, and the output end of the photovoltaic solar panel is connected with a heat energy generator to convert solar energy into electric energy.
The vertical axis wind turbine power generation device comprises blades 9 and a connecting support, the connecting support is fixedly connected with the blades 9, the connecting support is rotatably connected to the vertical rod-shaped structure 11, and the blades of the vertical axis wind turbine rotate to drive a rotor of a generator 10 to rotate, so that electric energy is generated.
The semi-submersible offshore platform module can be moored to the sea floor by means of diagonal tension anchors or tension leg anchors 7 depending on local conditions.
During operation, the operation conditions of each part of the platform are as follows:
for the water part, when wind acts on the vertical axis fan power generation device 2, each blade 9 is subjected to the thrust of wind at different angles and rotates, so that a generator set 10 below the vertical rod-shaped structure 11 is driven, and wind energy is converted into mechanical energy to generate electricity;
the lower end of the solar photovoltaic power generation device 1 is fixed on the support frame, the lower end of the support frame is connected with the vertical rod-shaped structure 11, the angle of the solar cell panel is adjusted through the universal shaft 12, the solar cell panel is enabled to face sunlight, and the heat energy power generator is utilized to generate power.
For the underwater part, when the wave power generation device 4 of the oscillating water column works, the lower part of the cavity of the upright post is filled with seawater, and the upper part of the cavity of the upright post is filled with air to form an air chamber 14, when the wave crest approaches to the upright post 13, the seawater enters the cavity of the upright post to push the water level in the cavity of the upright post to rise, so that the air pressure in the air chamber 14 is increased, and the air is discharged at high speed; on the contrary, when the wave trough approaches the upright post 13, the seawater flows out of the cavity of the upright post, the water level in the cavity of the upright post is reduced, the air pressure in the air chamber 14 is reduced, and the outside air enters the air chamber 14 through the rectification air pipeline 16; the gas flowing into and out of the rectified gas pipeline 16 pushes the turbine 6 below the deck to rotate, and the turbine 6 drives the generator to rotate to generate electric energy;
for the oscillating floater wave power generation device 5, the floater 18 directly contacted with seawater does a fluctuation motion along with waves, the floater 18 drives a hydraulic rod in a hydraulic cylinder 19 to reciprocate, hydraulic oil in an oil tank 21 is discharged into an energy accumulator 26 through a one-way valve 20 to be stored, when the energy accumulator 26 reaches a certain pressure, an electromagnetic valve 25 is opened to release the hydraulic oil and push a hydraulic motor 22 to rotate, so that a generator 23 is driven to generate electricity, mechanical energy is converted into electric energy, after the hydraulic oil is released, the pressure in the energy accumulator 26 is reduced to an initial value, the electromagnetic valve 25 is closed, the energy accumulator 26 is filled with oil and enters the next cycle, a manual valve 27 for controlling the opening and closing of the energy accumulator is arranged between the energy accumulator 26 and a hydraulic loop, and a speed regulating valve 24 for controlling the rotating speed of the hydraulic motor 22 is arranged between the electromagnetic valve 25 and a hydraulic system. The upper cavity is connected with a rectification gas pipeline 16 below the deck, and the gas pipeline outlets of the oscillation floater wave power generation devices 5 are rectified and connected with the gas inlet of a turbine 6 below the deck to push the turbine 6 to rotate so as to convert mechanical energy into electric energy. The turbine 6 connecting the cavities 28 of the oscillating buoy wave power unit turns the same as the turbine 6 connecting the air chambers 14 of the oscillating water column wave power unit, further improving the power generation efficiency.
When the platform oscillating water column power generation system and the oscillating floater power generation system are designed, the self-oscillation frequency of the platform oscillating water column power generation system and the oscillating floater power generation system is ensured to be consistent with the frequency of local common waves to the greatest extent, so that the energy obtaining efficiency is increased.
When the semi-submersible type ocean platform is used, a method for simultaneously using a plurality of semi-submersible type ocean platform modules can be adopted to form an ultra-large floating body structure, and the total electricity generation amount is increased. The multiple power generation devices can be used simultaneously and are not interfered with each other, so that higher power generation efficiency can be obtained.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: it is possible to modify the solution described in the preceding embodiments,
or the equivalent substitution of some or all of the technical characteristics; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (8)

1. A floating ocean platform module and an ocean platform which have the power generation functions of wind energy, solar energy and wave energy are characterized by comprising an above-water part and an under-water part, wherein the above-water part comprises a floating ocean platform serving as a deck platform, a rectified gas pipeline is arranged below the deck, and two turbines are arranged in the middle of the deck and connected with the rectified gas pipeline; a vertical shaft fan power generation device used for converting wind energy into electric energy is arranged above the deck, and a solar photovoltaic power generation device used for converting solar energy into electric energy is arranged at the top end of the rod-shaped structure of the vertical shaft fan and is connected with the vertical shaft fan through a universal shaft; the underwater part comprises a stand column and a buoyancy tank, an oscillating floater wave power generation device for converting wave energy into mechanical energy is arranged on the buoyancy tank, the oscillating floater wave power generation device adopts a double-cavity structure, a hydraulic system is arranged in a lower cavity, a floater drives a hydraulic rod to reciprocate to push a hydraulic motor to rotate so as to drive a generator to generate power and convert the mechanical energy into electric energy, an upper cavity is connected with the rectified gas pipeline, and an outlet of the gas pipeline is connected with a turbine below a deck; an oscillating water column wave power generation device for converting wave energy into mechanical energy is arranged in the upright post, an air chamber and a connecting part are arranged in the upright post, and the air chamber is connected with an air inlet of another turbine through a rectification gas pipeline below the deck; the rectification gas pipeline is connected with each air chamber and the cavity, air in the air chambers and in the cavity is respectively guided to the two turbines below the deck, and the two turbines below the deck are in the same steering direction.
2. The floating ocean platform module and the ocean platform having the functions of wind energy, solar energy and wave energy for power generation as claimed in claim 1, wherein the oscillating water column wave power generation device, the column is a cavity structure and comprises a gas pipeline and a gas chamber, the gas chamber is a cavity formed by the inner side wall of the column and the gas pipeline, a gas duct is arranged below the platform deck, the gas duct is connected with the gas inlet of the turbine power generation device, the lower part of the column cavity is filled with seawater during operation, the upper part of the column cavity is filled with air, the air in the cavity is changed based on the fluctuation of waves, when the valve is opened, the air enters the gas chamber through the connecting part and then enters the rectification gas pipeline to reach the gas inlet of the turbine power generation device in the middle of the deck, and the turbine is pushed to rotate, so that the mechanical energy is converted into electric energy.
3. The floating ocean platform module and ocean platform for generating electricity from both wind, solar and wave energy according to claim 1 wherein the natural frequency of oscillation of the oscillating water column wave power unit is obtained by:
Figure FDA0003421553210000011
wherein: g is the acceleration of gravity; t is the wave period; s is the cross-sectional area of the air chamber; d is the height of the water column.
4. The floating ocean platform module and the ocean platform having the wind energy, the solar energy and the wave energy for power generation as claimed in claim 1, wherein the oscillating floater wave power generation device comprises an upper cavity and a lower cavity, the oscillating floater is in contact with seawater and moves with waves, the lower cavity is provided with a hydraulic system, the floater drives a hydraulic rod in a hydraulic cylinder to reciprocate, hydraulic oil in an oil tank is discharged into the energy accumulator through a one-way valve for storage, when the energy accumulator reaches a certain pressure, the electromagnetic valve is opened to release the hydraulic oil and push the hydraulic motor to rotate, so as to drive the generator to generate power and convert mechanical energy into electric energy, after the hydraulic oil is released, the pressure in the energy accumulator is reduced to an initial value, the electromagnetic valve is closed, the energy accumulator is filled with oil and enters the next cycle, and a manual valve for controlling the energy accumulator to be opened and closed is arranged between the energy accumulator and the hydraulic circuit, a speed regulating valve for controlling the rotating speed of the hydraulic motor is arranged between the electromagnetic valve and the hydraulic system; the upper cavity is connected with a rectification gas pipeline below the deck, and gas pipeline outlets of the oscillation floater wave power generation devices are rectified and connected with a turbine gas inlet below the deck to push the turbine to rotate so as to convert mechanical energy into electric energy.
5. The floating ocean platform module and the ocean platform having the functions of wind energy, solar energy and wave energy for power generation according to any one of claims 1 to 4, wherein the float heave natural frequency of the oscillating float wave power generation device is obtained by the following formula:
Figure FDA0003421553210000021
wherein: m is the float mass; a is33As an additional mass; rho is the density of the seawater; a is the area of the water surface in the floater; k spring rate under the rope.
6. The floating ocean platform module and ocean platform for generating power by both wind energy, solar energy and wave energy according to claim 1, wherein the solar photovoltaic power generation device comprises a photovoltaic solar panel, the lower end of the photovoltaic solar panel is fixedly arranged at the upper end of the vertical axis fan rod-shaped structure, a universal shaft is arranged at the joint of the photovoltaic solar panel and is used for adjusting the orientation of the solar panel, the photovoltaic solar panel is used for keeping the photovoltaic solar panel facing the sunlight, and the output end of the photovoltaic solar panel is connected with a thermal power generator for converting solar energy into electric energy.
7. The floating ocean platform module and ocean platform for generating power by combining wind energy, solar energy and wave energy as claimed in claim 1, wherein the vertical axis wind turbine power generation device comprises a blade and a connecting bracket, the connecting bracket is fixedly connected with the blade, the connecting bracket is rotatably connected to the vertical axis wind turbine rod-shaped structure, and the rotation of the vertical axis wind turbine blade drives the generator rotor to rotate, thereby generating electric energy.
8. The floating wind, solar and wave power floating ocean platform module and platform of claim 1 wherein the pontoons are moored to the seafloor by either diagonal tension anchors or tension leg anchors.
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