CN114033618B - Deep-open-sea floating wind-wave-current combined power generation device - Google Patents

Deep-open-sea floating wind-wave-current combined power generation device Download PDF

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Publication number
CN114033618B
CN114033618B CN202111139575.8A CN202111139575A CN114033618B CN 114033618 B CN114033618 B CN 114033618B CN 202111139575 A CN202111139575 A CN 202111139575A CN 114033618 B CN114033618 B CN 114033618B
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power generation
generation device
semi
oscillating
wave
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CN114033618A (en
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柯世堂
赵永发
王硕
员亦雯
张伟
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Nanjing University of Aeronautics and Astronautics
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Nanjing University of Aeronautics and Astronautics
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    • 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
    • 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
    • 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
    • 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
    • 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
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • 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
    • F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
    • F03B3/12—Blades; Blade-carrying rotors
    • F03B3/121—Blades, their form or construction
    • 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
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/065—Rotors characterised by their construction elements
    • 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
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • 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
    • Y02E10/20—Hydro 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
    • Y02E10/30—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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E10/727—Offshore wind turbines

Abstract

The invention discloses a deep-open sea floating wind-wave-current combined power generation device which comprises a semi-submersible foundation capable of floating on the sea, wherein a wind driven generator is arranged at the upper part of the semi-submersible foundation, at least one oscillating float type wave power generation device is arranged at the hollowed-out part of the semi-submersible foundation, the oscillating float type wave power generation device can float up and down by utilizing the semi-submersible foundation to generate electric energy, a plurality of swing arm float type wave power generation devices are arranged at the outer side of the oscillating float type wave power generation device, the swing arm float type wave power generation device can swing under the action of waves and generate electric energy by utilizing the swing, a plurality of vertical shaft type ocean current power generation devices are arranged at the bottom of the semi-submersible foundation, and the vertical shaft type ocean current power generation devices generate electric energy by utilizing ocean currents with different flow directions. According to the invention, wind energy resources, wave resources and ocean current resources are spatially fused, so that the spatial three-dimensional development and utilization of ocean energy are realized, and the utilization efficiency of ocean area is effectively improved.

Description

Deep-open-sea floating wind-wave-current combined power generation device
Technical Field
The invention relates to the technical field of ocean energy utilization, in particular to a deep-open-sea floating wind-wave-current combined power generation device.
Background
Wind energy, wave energy and ocean current energy are three ocean energy sources with large-scale development prospect. In recent years, offshore wind energy resource development is becoming saturated, and there is a slow decrease in the coastal area available for offshore wind energy, wave energy and ocean current energy development. Compared with offshore waters, the deep-sea wind energy resources in the deep-open-sea waters are richer and more stable, and the development of the deep-sea wind energy resources by the floating fan technology has become the development trend of global ocean renewable energy sources. Meanwhile, the sea area with rich wind energy resources also has rich wave energy and ocean current energy resources, the wave energy and ocean current energy power generation technology is still in the research and demonstration stage, and the wind energy-wave energy-ocean current energy integrated development technology based on the mature offshore wind turbine technology attracts the wide interests of domestic and foreign students.
In the prior art, the basic forms of offshore wind turbines are divided into stationary and floating types. The fixed foundation includes: single pile type, multi-pile type, gravity type, high pile bearing table type, conduit frame type and the like. The floating foundation comprises a single column type, a tension leg type, a semi-submersible type, a ship type and the like. As the offshore wind power technology matures, the offshore wind farm gradually goes from offshore to deep sea, and the foundation form of the offshore wind farm is changed from a fixed foundation to a floating foundation along with the change of the water depth. The semi-submersible floating platform has the advantages of good stability, wide applicable water depth range, convenience in construction and transportation and the like, and becomes a main flow foundation form of a future offshore floating wind power plant.
At present, the use cost of the offshore wind turbine is still higher, the use efficiency of the area of the sea is still lower, and the use efficiency of the offshore wind turbine needs to be improved so that the technology can be widely popularized and applied.
Disclosure of Invention
The invention aims to solve the problems in the background art and provides a deep-open sea floating wind-wave-current combined power generation device.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a deep-open-sea floating wind-wave-current combined power generation device comprises a semi-submersible foundation capable of floating on the sea surface, wherein: the semi-submersible foundation is hollowed out, a wind driven generator is arranged on the upper portion of the semi-submersible foundation, at least one oscillation float type wave energy generating device is arranged at the hollowed-out portion of the semi-submersible foundation, the oscillation float type wave energy generating device can utilize the semi-submersible foundation to float up and down to generate electric energy, a plurality of swing arm float type wave energy generating devices are arranged on the outer side of the oscillation float type wave energy generating device, the swing arm float type wave energy generating device can swing under the action of waves and generate electric energy by utilizing the swing, a plurality of vertical shaft type ocean current generating devices are arranged at the bottom of the semi-submersible foundation, and the vertical shaft type ocean current generating devices generate electric energy by utilizing ocean currents with different flow directions.
The further optimization scheme of the invention is as follows:
the semi-submersible foundation is further provided with a flexible mooring system for positioning the semi-submersible foundation, an offshore booster station for boosting generated electric energy and a sending-out cable for sending out the boosted electric energy, and the wind driven generator, the oscillating buoy type wave energy power generation device and the swing arm buoy type wave energy power generation device share one set of flexible mooring system, the offshore booster station and the sending-out cable.
The semi-submersible foundation is composed of a bottom layer horizontal tripod, an upper layer horizontal tripod and a vertical support used for connecting the bottom layer horizontal tripod and the upper layer horizontal tripod, and the hollow-out of the semi-submersible foundation is a gap among the bottom layer horizontal tripod, the upper layer horizontal tripod and the vertical support.
The wind driven generator is a large megawatt horizontal axis wind driven generator, the large megawatt horizontal axis wind driven generator comprises a tower barrel, a power conversion cabin, a hub and blades, the blades are connected with the power conversion cabin through the hub, the power conversion cabin is fixed on the upper portion of the tower barrel, the bottom of the tower barrel is fixedly connected with a semi-submersible foundation, the power conversion cabin is used for converting mechanical energy generated by rotation of the blades into electric energy, and the power conversion cabin is connected with an offshore booster station.
The oscillation float type wave energy power generation device comprises an oscillation float shell, a lower sealing plate, an upper piston plate, a support column and a turbine generator, wherein a floating cavity is formed in the bottom of the oscillation float shell, the lower sealing plate is fixedly connected with the oscillation float shell, the lower sealing plate covers the floating cavity to enable the floating cavity to be sealed, the upper piston plate is fixedly connected with the support column, the upper piston plate is located in the oscillation float shell, an air cabin is surrounded between the upper piston plate and the lower sealing plate, the inside of the support column is hollow, the turbine generator is installed in the support column, the upper end of the support column is fixedly connected with an upper horizontal tripod, the support column is located in the air cabin and is communicated with the air cabin through an opening, the oscillation float shell is located in sea, when a semi-submersible foundation floats up and down along with sea waves, the floating cavity pushes the oscillation float shell to move up and down through buoyancy, so that the oscillation float shell drives the lower sealing plate and the upper piston plate to enable air cabin to compress or suck air, the air cabin and the air cabin to generate air convection, and thus the turbine generator is pushed to generate power, and the turbine generator is connected with a booster station at sea.
The lower end of the support column penetrates through the lower sealing plate to be fixedly connected with the bottom horizontal tripod, and a limit pad is arranged between the upper piston plate and the lower sealing plate and used for preventing the lower sealing plate from excessively moving upwards to collide with the upper piston plate.
The upper piston plate and the lower sealing plate are steel plates, and the limiting pad is a rubber block.
The swing arm float type wave energy power generation device comprises a swing arm float, a swing arm, an outer ring body, an inner ring body, a driving pawl, a transmission shaft, a ratchet wheel, a braking pawl, a leaf spring and a generator, wherein the outer ring body, the inner ring body and the ratchet wheel are sequentially installed by taking the transmission shaft as an axle center from outside to inside, the swing arm float is fixedly connected with the outer side surface of the outer ring body through the swing arm, the swing arm float floats on the sea surface, when swinging along with waves, the swing arm float can drive the outer ring body to rotate around the transmission shaft, a circumferentially arranged travel groove is formed in the inner ring body, the inner side surface of the outer ring body is fixedly connected with the driving pawl, the driving pawl penetrates through the travel groove to be meshed with a ratchet tooth of the ratchet wheel, the braking pawl is fixed on the inner ring body, the braking pawl is meshed with the ratchet tooth of the ratchet wheel, the leaf spring is pressed on the braking pawl, the braking pawl always keeps the collision state with the ratchet wheel, the wheel center of the ratchet wheel is fixedly connected with one end of the transmission shaft, the outer ring body drives the driving pawl to push the ratchet wheel to rotate in the forward rotation and reverse rotation process, the braking pawl always keeps the ratchet wheel, the ratchet wheel can not rotate, the transmission shaft is driven, and the power generation generator is connected with a booster station at sea.
The vertical shaft type ocean current power generation device comprises a vertical rod, vertical shaft blades and a power output structure, wherein the upper end of the vertical rod is connected with the power output structure, the power output structure is arranged on a semi-submersible basis, a group of vertical shaft blades are arranged on the vertical rod at intervals in the vertical direction, the vertical shaft blades drive the vertical rod to rotate under the action of ocean current, the power output structure converts mechanical force generated by the rotation of the vertical rod into electric power, and the power output structure is connected with an offshore booster station.
The bottom end of the vertical rod is provided with a heave suppression plate for slowing down heave of the vertical rod.
The invention has the following advantages:
compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention integrates a large megawatt horizontal axis wind driven generator, an oscillation float type wave energy generating device and a swing arm float type ocean current energy generating device, namely wind energy resources, wave resources and ocean current resources are spatially fused, thereby realizing the spatial three-dimensional development and utilization of ocean energy and effectively improving the utilization efficiency of ocean area.
2. The oscillation float type and swing arm float type power generation device effectively utilizes wave energy in hollow areas outside and inside the semi-submersible platform, wherein the wave focusing effect of the semi-submersible platform (the wave energy flow density of the hollow area of the semi-submersible platform is larger than that of the peripheral sea area) is beneficial to improving the power generation efficiency of the oscillation float type wave energy power generation device. The two wave energy power generation devices can improve the additional mass and viscous damping of the floating platform, are beneficial to reducing the motion amplitude of the platform, improve the stability, have good motion performance, enable the power generation of the horizontal axis wind turbine to be more stable, and improve the safety of the wind turbine blade. Meanwhile, the combination of the oscillating float type and swing arm float type wave energy power generation device and the wind turbine also increases the movement of the platform in the pitching, rolling and other directions, promotes the relative movement of the floats and the platform, and improves the wave energy power generation efficiency.
3. The serial vertical shaft type ocean current energy power generation device is arranged below the semi-submersible platform buoy and is formed by connecting a plurality of vertical shaft ocean current power generation devices in series, so that ocean currents with different flow directions can be utilized for power generation, the difference of flow velocity at different depths of ocean is considered, and the sectional differential power generation is adopted.
4. According to the invention, the large megawatt horizontal axis wind driven generator, the oscillation float type wave energy power generation equipment, the swing arm float type wave energy power generation equipment and the series vertical axis ocean current energy power generation equipment share the same semi-submersible type platform as the supporting structure, so that the utilization efficiency of the supporting structure is improved, meanwhile, a plurality of power generation equipment share a set of flexible mooring system, an offshore booster station and a sending-out cable, the equipment cost for independently providing the equipment with the modules is saved, and the overall benefit is improved.
5. The invention combines the oscillating float type wave energy generating device, the oscillating arm float type wave energy generating device and the serial vertical axis ocean current energy generating device with the horizontal axis wind turbine, can realize the uninterrupted power generation under certain sea conditions, combines the wind wave and current power generation under normal working conditions, and carries out feathering shutdown on the wind turbine under extreme working conditions, and the wave energy and ocean current energy device carries out uninterrupted power generation.
Drawings
FIG. 1 is a perspective view of a deep-open-sea floating wind-wave-current combined power generation device.
Fig. 2 is a schematic diagram of an oscillating buoy type wave energy power generation device.
Fig. 3 is a schematic diagram of a swing arm float type wave energy power generation device.
Fig. 4 is a schematic diagram of the power generation principle of the swing arm float type wave power generation device.
Fig. 5 is a schematic diagram of a tandem vertical axis wave power plant.
Name of the label in the figure: the semi-submersible foundation 1, the bottom horizontal tripod 11, the upper horizontal tripod 12, the vertical bracket 13, the wind driven generator 2, the tower 21, the power conversion cabin 22, the blades 23, the oscillation float type wave power generation device 3, the float cavity 3a, the air cabin 3b, the oscillation float shell 31, the lower sealing plate 32, the upper piston plate 33, the support column 34, the opening 34a, the turbine generator 35, the limit pad 36, the swing arm float type wave power generation device 4, the swing arm float 41, the swing arm 42, the outer ring body 43, the inner ring body 44, the travel groove 44a, the driving pawl 45, the transmission shaft 46, the ratchet 47, the braking pawl 48, the leaf spring 49, the generator 40, the vertical shaft type ocean current power generation device 5, the vertical rod 51, the vertical shaft blade 52 and the heave damping plate 53.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the offshore multi-energy integration device provided by the present embodiment includes a large megawatt horizontal axis wind power generator, a semi-submersible foundation 1, an oscillating buoy type wave power generation device 3, an oscillating arm buoy type wave power generation device 4, a serial vertical axis type ocean current power generation device 5, a mooring system, and the like.
The semi-submersible floating platform is of a triangular structure and mainly made of high-strength steel and concrete, wherein the oscillating buoy type wave power generation device 3 is arranged between the bottom horizontal tripod 11 and the upper horizontal tripod 12 of the semi-submersible foundation 1, penetrates through a vertical supporting column 34, and is provided with two oscillating floats on each side, and the total is six. Inside the oscillating floater, the annular upper piston plate 33 is welded with the vertical support column 34, the annular lower sealing plate 32 is welded with the inner wall of the oscillating floater, the upper piston plate 33, the lower sealing plate 32 and the inner wall of the oscillating floater form an air cabin 3b, the vertical support column 34 is provided with a plurality of ventilation holes at the part of the air cabin 3b, the turbine generator 35 is positioned in the vertical support column 34 at the upper part of the air cabin 3b, when the oscillating floater moves, air in the air cabin 3b can be extruded and sucked, air flow can enter the inside of the support column through the ventilation holes on the vertical support column 34, so that the turbine generator 35 impeller is driven to rotate and generate electricity, generated electric energy is sent out to an offshore pressure generating station through cables in the seabed after boosting treatment, and an annular rubber protection pad is fixed on the support column in the part of the air cabin 3b, so that the upper piston plate 33 collides with the lower sealing plate 32 due to overlarge movement amplitude of the oscillating floater is prevented.
The swing arm float type wave power generation device 4 comprises a swing arm float 41, a swing arm 42, an outer ring body 43, an inner ring body 44, a driving pawl 45, a transmission shaft 46, a ratchet wheel 47, a braking pawl 48, a leaf spring 49 and a power generator 40, wherein the outer ring body 43, the inner ring body 44 and the ratchet wheel 47 are sequentially installed by taking the transmission shaft 46 as an axis from outside to inside, the swing arm float 41 is fixedly connected with the outer side surface of the outer ring body 43 through the swing arm 42, the swing arm float 41 floats on the sea surface, when the wave swings, the swing arm float 41 can drive the outer ring body 43 to rotate around the transmission shaft 46, a stroke groove 44a which is circumferentially arranged is formed in the inner side surface of the outer ring body 43 and the driving pawl 45 are fixedly connected, the driving pawl 45 penetrates through the ratchet tooth engagement of the stroke groove 44a and the ratchet wheel 47, the braking pawl 48 is fixed on the inner ring body 44, the braking pawl 48 is also meshed with the ratchet wheel 47, the leaf spring 49 presses the braking pawl 48, the braking pawl 48 is always kept in an abutting state with the ratchet wheel 47, the wheel center of the ratchet wheel 47 is fixedly connected with the transmission shaft 46, the power generator 40 is fixedly connected with one end of the transmission shaft 46, the outer ring body 43 pushes the power generator 45 to rotate in a forward and reverse rotation, the power generator 47 is driven by the power generator 47, and the power generator 40 can not rotate, and the power generator 40 is driven to rotate, thereby the power generator 40 is driven by the power generator 47, and the power generator 40 is always can not rotate, and can rotate, and the power generator is driven, and can rotate, and the power is always, and can rotate.
The vertical shaft type ocean current power generation device 5 comprises a vertical rod 51, vertical shaft blades 52 and a power output structure, wherein the upper end of the vertical rod 51 is connected with the power output structure, the power output structure is arranged on the semi-submersible foundation 1, a group of vertical shaft blades 52 are arranged on the vertical rod 51 at intervals in the vertical direction, the vertical shaft blades 52 drive the vertical rod 51 to rotate under the action of ocean currents, the power output structure converts mechanical force generated by the rotation of the vertical rod 51 into electric power, and the power output structure is connected with an offshore booster station.
The large megawatt horizontal axis wind turbine includes main components (not shown) such as a tower 21, a power conversion nacelle 22, a hub, blades 23, and other accessory components. Under the normal working state, the impeller rotates under the action of wind force to drive the main shaft to rotate, wind energy is converted into mechanical energy, the main shaft drives the gear box to rotate to transfer the mechanical energy, the gear box drives the generator rotor to move, the magnetic induction wire is cut to generate electricity, and the conversion from the mechanical energy to the electric energy is realized.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above examples, and all technical solutions belonging to the concept of the present invention belong to the protection scope of the present invention. It should be noted that modifications and adaptations to the invention without departing from the principles thereof are intended to be within the scope of the invention as set forth in the following claims.

Claims (9)

1. The deep-open-sea floating wind-wave-current combined power generation device comprises a semi-submersible foundation (1) capable of floating on the sea surface, and is characterized in that: the semi-submersible foundation (1) is arranged in a hollowed-out manner, a wind driven generator (2) is arranged on the upper portion of the semi-submersible foundation (1), at least one oscillating-shaft type wave power generation device (3) is arranged at the hollowed-out portion of the semi-submersible foundation (1), the oscillating-shaft type wave power generation device (3) can generate electric energy by means of floating up and down of the semi-submersible foundation (1), the semi-submersible foundation (1) is provided with a plurality of oscillating-arm type wave power generation devices (4) on the outer side of the oscillating-shaft type wave power generation device (3), the oscillating-arm type wave power generation devices (4) can oscillate under the action of waves and generate electric energy by means of the oscillation, a plurality of vertical-shaft type ocean current power generation devices (5) are arranged at the bottom of the semi-submersible foundation (1), the oscillating-shaft type wave power generation devices (3) generate electric energy by means of ocean currents with different flow directions, the oscillating-shaft type wave power generation device (3) comprises an oscillating-float shell (31), a lower piston (32), an upper support column (33) and a sealing plate (35), an oscillating-shaft type wave power generation device (3) is arranged at the bottom of the oscillating-shaft type wave power generation device (3), and a sealing plate (32 a) is connected with the oscillating-floating shell (32 a), the upper piston plate (33) is fixedly connected with the support column (34), the upper piston plate (33) is located in the oscillating floater shell (31) and surrounds the air cabin (3 b) with the lower sealing plate (32), the support column (34) is hollow, the turbine generator (35) is installed in the support column (34), the upper end of the support column (34) is fixedly connected with the upper horizontal tripod (12), the support column (34) is partially located in the air cabin (3 b) and is communicated with the air cabin (3 b) through an opening, the oscillating floater shell (31) is partially located in sea water, when the semi-submersible foundation (1) floats up and down along with sea waves, the floating cavity (3 a) pushes the oscillating floater shell (31) to move up and down through buoyancy, so that the oscillating floater shell (31) drives the lower sealing plate (32) to generate relative displacement with the upper piston plate (33), the air compressed or sucked by the air cabin (3 b) and the inner cavity of the support column (34) generate air convection, and the turbine generator (35) is pushed to generate power, and the turbine generator (35) is connected with a booster station on the sea.
2. The deep-open-sea floating wind-wave-current combined power generation device according to claim 1, characterized in that: the semi-submersible type power generation device is characterized in that the semi-submersible type power generation device is further provided with a flexible mooring system for positioning the semi-submersible type power generation device (1), an offshore booster station for boosting generated electric energy and a sending-out cable for sending out the boosted electric energy, and the wind driven generator (2), the oscillating-float type wave power generation device (3) and the oscillating-arm float type wave power generation device (4) share one set of flexible mooring system, the offshore booster station and the sending-out cable.
3. The deep-open-sea floating wind-wave-current combined power generation device according to claim 2, characterized in that: the semi-submersible foundation (1) is composed of a bottom layer horizontal tripod (11), an upper layer horizontal tripod (12) and a vertical support (13) used for connecting the bottom layer horizontal tripod (11) and the upper layer horizontal tripod (12), and the hollow-out of the semi-submersible foundation (1) is a gap between the bottom layer horizontal tripod (11), the upper layer horizontal tripod (12) and the vertical support (13).
4. A deep open sea floating wind-wave-current combined power generation device according to claim 3, characterized in that: the wind driven generator (2) is a large megawatt horizontal axis wind driven generator, the large megawatt horizontal axis wind driven generator comprises a tower barrel (21), a power conversion cabin (22), a hub and blades (23), the blades (23) are connected with the power conversion cabin (22) through the hub, the power conversion cabin (22) is fixed on the upper portion of the tower barrel (21), the bottom of the tower barrel (21) is fixedly connected with a semi-submersible foundation (1), the power conversion cabin (22) is used for converting mechanical energy generated by rotation of the blades (23) into electric energy, and the power conversion cabin (22) is connected with an offshore booster station.
5. The deep-open-sea floating wind-wave-current combined power generation device according to claim 4, characterized in that: the lower end of the support column (34) penetrates through the lower sealing plate (32) to be fixedly connected with the bottom horizontal tripod (11), a limit pad (36) is arranged between the upper piston plate (33) and the lower sealing plate (32) by the support column (34), and the limit pad (36) is used for preventing the lower sealing plate (32) from excessively moving upwards to collide with the upper piston plate (33).
6. The deep-open-sea floating wind-wave-current combined power generation device according to claim 5, characterized in that: the upper piston plate (33) and the lower sealing plate (32) are both steel plates, and the limiting pad (36) is a rubber block.
7. The deep-open-sea floating wind-wave-current combined power generation device according to claim 6, characterized in that: the swing arm float type wave power generation device (4) comprises a swing arm float (41), a swing arm (42), an outer ring body (43), an inner ring body (44), a driving pawl (45), a transmission shaft (46), a ratchet wheel (47), a braking pawl (48), a leaf spring (49) and a power generator (40), wherein the outer ring body (43), the inner ring body (44) and the ratchet wheel (47) are sequentially installed by taking the transmission shaft (46) as an axis from outside to inside, the swing arm float (41) is fixedly connected with the outer side surface of the outer ring body (43) through the swing arm (42), the swing arm float (41) floats on the sea surface, when the wave swings, the swing arm float (41) can drive the outer ring body (43) to rotate around the transmission shaft (46), the inner ring body (44) is provided with a stroke groove (44 a) which is circumferentially arranged, the inner side surface of the outer ring body (43) is fixedly connected with the driving pawl (45), the driving pawl (45) penetrates through the stroke groove (44 a) to be meshed with a ratchet tooth of the ratchet wheel (47), the braking pawl (48) is fixedly meshed with the inner ring body (44), the braking pawl (48) is also kept in a state of being meshed with the ratchet wheel (48) by the braking pawl (47) which is always kept in a state of the braking pawl (48), the wheel center of the ratchet wheel (47) is fixedly connected with the transmission shaft (46), the generator (40) is fixedly connected with one end of the transmission shaft (46), the outer ring body (43) drives the driving pawl (45) to push the ratchet wheel (47) to rotate in the forward rotation and reverse rotation process, the braking pawl (48) always keeps the ratchet wheel (47) incapable of rotating reversely, the ratchet wheel (47) drives the transmission shaft (46) to rotate, and therefore the generator (40) generates electricity, and the generator (40) is connected with an offshore booster station.
8. The deep-open-sea floating wind-wave-current combined power generation device according to claim 7, characterized in that: the vertical shaft type ocean current power generation device (5) comprises a vertical rod (51), vertical shaft blades (52) and a power output structure, wherein the upper end of the vertical rod (51) is connected with the power output structure, the power output structure is arranged on a semi-submersible foundation (1), a group of vertical shaft blades (52) are arranged on the vertical rod (51) at intervals in the vertical direction, the vertical shaft blades (52) drive the vertical rod (51) to rotate under the action of ocean currents, the power output structure converts mechanical force generated by the rotation of the vertical rod (51) into electric power, and the power output structure is connected with an offshore booster station.
9. The deep-open-sea floating wind-wave-current combined power generation device according to claim 8, characterized in that: the bottom end of the vertical rod (51) is provided with a heave inhibition plate (53) for slowing down the heave of the vertical rod (51).
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