CN111255611A - Single-pile type wave energy and tidal current energy cooperative power generation device - Google Patents
Single-pile type wave energy and tidal current energy cooperative power generation device Download PDFInfo
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- CN111255611A CN111255611A CN202010168580.0A CN202010168580A CN111255611A CN 111255611 A CN111255611 A CN 111255611A CN 202010168580 A CN202010168580 A CN 202010168580A CN 111255611 A CN111255611 A CN 111255611A
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- tidal current
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Classifications
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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
- 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
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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
- 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
- F03B13/26—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 tide energy
- F03B13/264—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 tide energy using the horizontal flow of water resulting from tide movement
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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
- 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
- F03B3/14—Rotors having adjustable blades
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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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
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- 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
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- 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
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/406—Transmission of power through hydraulic systems
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- 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
Abstract
The invention discloses a single-pile wave energy and tidal current energy cooperative power generation device which comprises a floating plate, wherein a wave energy generator set is integrally arranged on the upper bottom surface of the floating plate, and a wave energy generator is positioned in the floating plate; the wave energy generating set and the tidal current energy generating set are wholly floated on the water surface through the floating plates and the auxiliary buoyancy devices on the flow guide covers. According to the tidal current energy generator, the length of the rotating shaft is designed, the tidal current energy generator is arranged in a shallow water area, more energy can be obtained, and the working efficiency of the tidal current energy generator is improved; the whole of the air guide sleeve and the wing-shaped blades can rotate, so that the inflow effect can be improved, water flow is stabilized, and the pitch angle of the wing-shaped blades is rotationally adjusted, so that the wing-shaped blades can obtain higher power at different flow speeds, and the stability of the tidal current energy generator is ensured.
Description
Technical Field
The invention relates to the technical field of offshore power generation, in particular to a single-pile type wave energy and tidal current energy cooperative power generation device.
Background
The existing wave energy and tidal current energy combined power generation device is influenced by the directions of tidal current and wave, so that only part of wave energy or tidal current energy in a fixed direction can be utilized, flexible steering cannot be realized, and the wave energy and the tidal current energy can be efficiently absorbed; the existing tidal current energy power generation equipment, whether single or combined, utilizes tidal current energy in a deep water region, wherein the tidal current flow rate is lower than that in a shallow water region, so that part of tidal current energy power generation devices cannot work normally when meeting low-speed tidal current, and the energy conversion efficiency is too low, so that the availability of the tidal current energy in the deep water region is lower than that in the shallow water region.
Disclosure of Invention
The invention aims to provide an offshore power generation device for generating power by combining wave energy and tidal current energy.
In order to solve the technical problems, the invention adopts the following technical scheme:
a single-pile type wave energy and tidal current energy cooperative power generation device comprises a floating plate, wherein a wave energy generator set is integrally arranged on the upper bottom surface of the floating plate, and a wave energy generator is positioned in the floating plate; the wave energy generating set and the tidal current energy generating set are wholly floated on the water surface through the floating plates and the auxiliary buoyancy devices on the flow guide covers.
The wave energy generating set and the tidal current energy generating set generate electricity in a complementary mode, the two sets of generators are installed on the same floating plate and float on the water surface through the floating plate and the attached buoyancy device, and wave energy and tidal current energy in the same region can be shared.
Furthermore, the wave energy generator set comprises an eagle type pressure increasing plate, a moving block, a spring, a pressure increasing block, an oil conveying pipe and a generator; the moving blocks are arranged on one connecting rod in a sliding mode, the springs are sleeved on the connecting rod in front of the two moving blocks, the connecting rod is fixedly arranged on the floating plate through the fixing block, a rotating rod is connected to each moving block in a rotating mode, the other end of each rotating rod is connected to the eagle-type pressure increasing plate in a rotating mode, one end of the eagle-type pressure increasing plate is connected with a piston rod arranged in the pressure increasing cylinder in a rotating mode, the piston rod is connected to the pressure increasing block located in the pressure increasing cylinder, and the pressure increasing cylinder is communicated with the hydraulic device and the generator through the oil.
The eagle type pressure increasing plate is opened and closed up and down under the fluctuation of waves, and the opening and closing degree of the pressure increasing plate is limited by the moving block and the spring together, so that the whole pressure increasing process is kept stable, and the hydraulic oil of the hydraulic device is sprayed to the hydraulic generator to generate electricity after being stably increased in pressure. The mechanical energy of the waves is converted into hydraulic energy, and then the hydraulic energy is converted into electric energy.
Further, the tidal current energy generator set comprises a flow guide cover, wing-shaped blades, a generator and a rotating shaft; the air guide sleeve is rotatably connected to the lower end of the rotating shaft, the inflow direction of the air guide sleeve is perpendicular to the rotating shaft, the upper end of the rotating shaft is rotatably connected to the floating plate, the wing-shaped blades are fixedly connected to the rotating shaft in the air guide sleeve through the support, and the rotating shaft drives the rotor of the generator to rotate to generate electricity.
By designing the length of the rotating shaft, the tidal current energy generator set is arranged in a shallow water area, the flow velocity of tidal current in the area is faster, and the contained tidal current energy is larger than that of tidal current energy in deep water, so that the tidal current energy generator set can obtain more energy when being arranged in the shallow water area, and the working efficiency of the tidal current energy generator is improved.
Preferably, the air guide sleeve is provided with an auxiliary buoyancy device which is an air bag, a floating ball and/or a buoy.
The auxiliary buoyancy device and the floating plate play a role in keeping the whole device stable through buoyancy.
Further preferably, the support is rotatably connected with a blade shaft of each wing-shaped blade, the number of the wing-shaped blades is 3, the cross section of each wing-shaped blade is in the shape of a wing, the blade shaft is arranged in each wing-shaped blade, two ends of each blade shaft are fixedly connected with the rotating shaft through the upper support and the lower support respectively, each wing-shaped blade can rotate around the corresponding rotating shaft of the blade shaft, and meanwhile, each wing-shaped blade and the rotating shaft rotate together.
When the sea water rises and falls, water current gushes from the direction of the water inlet of the air guide sleeve, when the water current impacts the blades, the blades rotate together with the main shaft, and meanwhile, the blades rotate around the blade shaft 7 to rotate to change the pitch, so that the rotating mechanical energy is converted into electric energy.
The wave energy generator set adopts a hydraulic generator, and the tidal current energy generator set adopts a direct-drive permanent magnet generator.
The invention has the beneficial effects that:
the wave energy generator set and the tidal current energy generator set generate power in a complementary mode, the two sets of generators are both arranged on the same floating plate and float on the water surface through the floating plate and the auxiliary buoyancy device, and wave energy and tidal current energy in the same region can be shared; the two sets of generators can work stably, and moving blocks and springs of the wave energy generator set can ensure that the eagle type pressure increasing plate stably injects oil to the hydraulic generator, so that the power generation stability of the hydraulic generator is ensured.
According to the tidal current energy generator, the length of the rotating shaft is designed, the tidal current energy generator is arranged in a shallow water area, more energy can be obtained, and the working efficiency of the tidal current energy generator is improved; the whole of the air guide sleeve and the wing-shaped blades can rotate, so that the inflow effect can be improved, water flow is stabilized, and the pitch angle of the wing-shaped blades is rotationally adjusted, so that the wing-shaped blades can obtain higher power at different flow speeds, and the stability of the tidal current energy generator is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic overall structure diagram of a wave energy generator set;
FIG. 3 is a top view structure of an airfoil blade in the tidal current energy generator set;
fig. 4 is a pod construction.
Detailed Description
As shown in fig. 1 and 2, the single-pile wave energy and tidal current energy cooperative power generation device comprises a wave energy power generator set located at the sea level and a tidal current energy power generator set located at a shallow position below the sea level; the wave energy generator set and the tidal current energy generator set are respectively provided with one set; the wave energy generator set is integrally arranged on the floating plate 2 and floats on the sea surface along with the floating plate, wherein the wave energy generator is positioned in the floating plate; the generator of the tidal current energy generator set is also arranged in the floating plate, a flow guide cover, blades and the like of the tidal current energy generator set are rotationally connected to the floating plate through a rotating shaft, the whole tidal current energy generator set is arranged in the water below the floating plate, the wave energy generator set is positioned right above the tidal current energy generator set, and the whole wave energy generator set and the whole tidal current energy generator set are kept balanced and float on the water surface through the floating plate 2 and the buoyancy device 5 attached to the flow guide cover.
The device can be used singly or in a plurality of connection, connects a plurality of floating plates through flexible inhaul cables, floating balls and the like, and can cover a water area.
As shown in fig. 1 and 2, the wave energy generator set comprises an eagle type booster plate 8, a moving block 9, a spring 10, a booster block 11, a waterproof cover 12, an oil pipeline 13 and a hydraulic generator 14; the moving blocks are arranged on one connecting rod in a sliding mode, the springs are sleeved on the connecting rod in front of the two moving blocks, the connecting rod is fixedly arranged on the floating plate through the fixing block, a rotating rod is connected to each moving block in a rotating mode, the other end of each rotating rod is connected to the eagle-type pressure increasing plate in a rotating mode, one end of the eagle-type pressure increasing plate is connected with a piston rod arranged in the pressure increasing cylinder in a rotating mode, the piston rod is connected to the pressure increasing block located in the pressure increasing cylinder, and the pressure increasing cylinder is communicated with the hydraulic device and the hydraulic generator through the oil.
The eagle type pressurizing plate 8 is opened and closed up and down under the fluctuation of waves, and the opening and closing degree of the pressurizing plate is limited by the moving block 9 and the spring 10 together, so that the whole pressurizing process is kept stable, and the hydraulic oil of the hydraulic device is sprayed to the hydraulic generator to generate electricity after being stably pressurized. The mechanical energy of the waves is converted into hydraulic energy, and then the hydraulic energy is converted into electric energy.
As shown in fig. 1, 3 and 4, the tidal current energy generator set comprises a flow guide cover 6, an auxiliary buoyancy device 5, a wing-shaped blade 4, a direct-drive permanent magnet generator 1 and a rotating shaft 3; the air guide sleeve 6 is rotatably connected to the lower end of the rotating shaft, the inflow direction of the air guide sleeve is perpendicular to the rotating shaft, the upper end of the rotating shaft is rotatably connected to the floating plate, the wing-shaped blades are fixedly connected to the rotating shaft in the air guide sleeve through a support, and the support is rotatably connected with blade shafts of the wing-shaped blades; the auxiliary buoyancy device is arranged on the air guide sleeve, and the rotating shaft drives the rotor of the direct-drive permanent magnet generator to rotate for power generation.
By designing the length of the rotating shaft, the tidal current energy generator set is arranged in a shallow water area, the flow velocity of tidal current in the area is faster, and the contained tidal current energy is larger than that of tidal current energy in deep water, so that the tidal current energy generator set can obtain more energy when being arranged in the shallow water area, and the working efficiency of the tidal current energy generator is improved.
The auxiliary buoyancy device is an air bag, a floating ball, a floating barrel and the like, and plays a role of keeping the whole device stable through buoyancy together with the floating plate.
In this embodiment, as shown in fig. 4, the auxiliary buoyancy device 5 is four buoys, two on each side of the pod, and the two buoys and the floating plate simultaneously play a role in keeping the overall stability of the device. The total buoyancy provided by the floating plate 2 and the buoyancy device 5 is slightly larger than the weight of the whole machine.
As shown in FIG. 3, when the sea water rises and falls, the water current comes from the direction of the water inlet of the air guide sleeve, when the water current impacts the blades, the blades rotate together with the main shaft, and simultaneously the blades rotate around the blade shaft 7 to rotate and change the pitch, so that the rotating mechanical energy is converted into electric energy.
As shown in fig. 4, the air guide sleeve 6 is a rectangular cylinder structure, the water inlet and the water outlet are designed to be horn-shaped, the air guide sleeve is rotatably connected with the rotating shaft, the air guide sleeve can automatically adjust the direction of the water inlet of the air guide sleeve according to the incoming flow direction and speed, and the pitch angle of the internal blades is automatically adjusted, so that the air guide sleeve can respond to the change of tidal current energy, utilize the tidal current energy to the maximum extent, convert more energy into electric energy, and further ensure the high utilization rate of the energy.
The above specific implementation manner and embodiments are specific support for the technical idea of the single-pile wave energy and tidal current energy cooperative power generation device provided by the present invention, and the protection scope of the present invention cannot be limited thereby, and any equivalent changes or equivalent changes made on the basis of the technical scheme according to the technical idea provided by the present invention still belong to the protection scope of the technical scheme of the present invention.
Claims (7)
1. A single-pile wave energy and tidal current energy cooperative power generation device is characterized by comprising a floating plate, wherein a wave energy generator set is integrally arranged on the upper bottom surface of the floating plate, and a wave energy generator is positioned in the floating plate; the wave energy generating set and the tidal current energy generating set are wholly floated on the water surface through the floating plates and the auxiliary buoyancy devices on the flow guide covers.
2. The single-pile wave energy and tidal current energy cooperative power generation device according to claim 1, wherein the wave energy generator set comprises an eagle type pressure increasing plate, a moving block, a spring, a pressure increasing block, an oil pipeline and a generator; the moving blocks are arranged on one connecting rod in a sliding mode, the springs are sleeved on the connecting rod in front of the two moving blocks, the connecting rod is fixedly arranged on the floating plate through the fixing block, a rotating rod is connected to each moving block in a rotating mode, the other end of each rotating rod is connected to the eagle-type pressure increasing plate in a rotating mode, one end of the eagle-type pressure increasing plate is connected with a piston rod arranged in the pressure increasing cylinder in a rotating mode, the piston rod is connected to the pressure increasing block located in the pressure increasing cylinder, and the pressure increasing cylinder is communicated with the hydraulic device and the generator through the oil.
3. The monopile wave energy and tidal energy cooperative power generation device according to claim 2, wherein the tidal energy generator set comprises a wind deflector, a wing-shaped blade, a generator and a rotating shaft; the air guide sleeve is rotatably connected to the lower end of the rotating shaft, the inflow direction of the air guide sleeve is perpendicular to the rotating shaft, the upper end of the rotating shaft is rotatably connected to the floating plate, the wing-shaped blades are fixedly connected to the rotating shaft in the air guide sleeve through the support, and the rotating shaft drives the rotor of the generator to rotate to generate electricity.
4. The monopile wave energy and tidal energy cooperative power generation device according to claim 3, wherein the fairing is provided with an auxiliary buoyancy device, and the auxiliary buoyancy device is an air bag, a floating ball and/or a buoy.
5. A mono-pile wave and tidal energy cogeneration apparatus according to claim 3, wherein the cradle is in rotational connection with the blade shaft of the aerofoil blades themselves.
6. The single-pile wave energy and tidal energy cooperative power generation device according to claim 5, wherein: the number of the wing-shaped blades is 3, the cross section of each wing-shaped blade is in the shape of a wing, a blade shaft is arranged in each wing-shaped blade, two ends of each blade shaft are fixedly connected with the rotating shaft through the upper support and the lower support respectively, the wing-shaped blades can rotate around the blade shafts relative to the rotating shaft, and meanwhile, the wing-shaped blades and the rotating shaft rotate together.
7. The monopile wave energy and tidal current energy cooperative power generation device according to claim 1, wherein the wave energy generator set is a hydraulic generator, and the tidal current energy generator set is a direct-drive permanent magnet generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168580.0A CN111255611A (en) | 2020-03-12 | 2020-03-12 | Single-pile type wave energy and tidal current energy cooperative power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010168580.0A CN111255611A (en) | 2020-03-12 | 2020-03-12 | Single-pile type wave energy and tidal current energy cooperative power generation device |
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| Publication Number | Publication Date |
|---|---|
| CN111255611A true CN111255611A (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010168580.0A Pending CN111255611A (en) | 2020-03-12 | 2020-03-12 | Single-pile type wave energy and tidal current energy cooperative power generation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893337A (en) * | 2022-04-21 | 2022-08-12 | 中国长江三峡集团有限公司 | Compound power generation facility based on trend energy and wave energy |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893337A (en) * | 2022-04-21 | 2022-08-12 | 中国长江三峡集团有限公司 | Compound power generation facility based on trend energy and wave energy |
| CN114893337B (en) * | 2022-04-21 | 2023-06-09 | 中国长江三峡集团有限公司 | Composite power generation device based on tidal current energy and wave energy |
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Application publication date: 20200609 |