CN114810464A - Wave and tide cooperative power generation equipment - Google Patents
Wave and tide cooperative power generation equipment Download PDFInfo
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- CN114810464A CN114810464A CN202210249012.2A CN202210249012A CN114810464A CN 114810464 A CN114810464 A CN 114810464A CN 202210249012 A CN202210249012 A CN 202210249012A CN 114810464 A CN114810464 A CN 114810464A
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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
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- General Life Sciences & Earth Sciences (AREA)
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Wave and tidal power generation equipment is a power generation device consisting of a tidal energy conversion system, a wave energy conversion system, an energy storage system, a power generation system and a fixing system, and the technology of the wave and tidal power generation equipment belongs to the field of renewable energy utilization. The device installed on the sea surface can store wave energy and tidal energy and then convert the wave energy and the tidal energy into electric energy which can be continuously output, and the marine ecological environment cannot be influenced. The device is low in manufacturing cost and operation cost, convenient to install and simple to maintain, and wave energy and tidal energy are cooperated to continuously and stably generate power. The power generation scale can be rapidly enlarged by increasing the number of power generation equipment, the method is suitable for constructing large, medium and small offshore power stations in coastal areas, and the actual requirements of national low-carbon economic strategy and energy structure adjustment are met.
Description
One, the technical field
Wave and tide are cooperative power generation equipment is a device for converting ocean wave kinetic energy and tide potential energy formed by natural fluctuation of sea level into electric energy, and the technology of the equipment belongs to the field of renewable energy utilization.
Second, background Art
The wave kinetic energy and the tidal potential energy formed by the natural fluctuation of the sea level contain inexhaustible renewable energy sources. China's coastline is long and tortuous, and according to incomplete statistics, the national tidal energy storage amount is 1.9 hundred million kilowatts, and the annual energy production can be 870 hundred million kilowatt-hours. At present, the tidal power generation in China just starts, the total installed capacity is only 1 ten thousand kilowatts, the hydroelectric power generation mode is usually adopted, dam gates and plants are built to form a reservoir, the manufacturing cost is high, the construction period is long, and the marine ecological environment is influenced. Wave and morning and evening tides are in coordination with power generation facility and are utilized and install marine electromechanical device and store wave energy and morning and evening tides energy back and then convert sustainable output's electric energy into, can not influence marine ecological environment, and its investment cost and generating cost all reduce by a wide margin, and this equipment fixing is convenient moreover, maintains simply, and wave energy and morning and evening tides energy can be in coordination with the sustainable stable electricity generation. The power generation scale can be enlarged by increasing the number of power generation equipment, and the method is suitable for building large, medium and small offshore power stations in coastal areas and meets the actual needs of national low-carbon economic strategy and energy structure adjustment.
Third, the invention
The wave and tide cooperative power generation equipment consists of a tidal energy conversion system, a wave energy conversion system, an energy storage system, a power generation system and a fixing system; the tidal energy conversion system consists of a segmental tidal fluctuation bin 1 positioned on the sea level, a cylindrical piston 2 vertically erected at the position of the center of a plane of the segmental tidal fluctuation bin 1, a primary hydraulic cylinder barrel 3 sleeved on the upper part of the cylindrical piston 2 and a secondary hydraulic cylinder barrel 4 sleeved on the upper part of the primary hydraulic cylinder barrel 3; the wave energy conversion system consists of a lever hinge 5 fixed on the edge of the plane of the segment-shaped tide fluctuation bin 1, a wave buoyancy ball 6 fixed at one end of the lever hinge 5, a semicircular gear 7 fixed at the other end of the lever hinge 5 and a rack 8 fixed at the lower part of the cylindrical piston 2 and meshed with the semicircular gear 7 along the vertical direction; the energy storage system consists of a cylindrical hydraulic energy storage cylinder barrel 9, a cylindrical gravity piston 29 matched with the cylindrical hydraulic energy storage cylinder barrel 9 and a cylindrical water supply tank 10 positioned below the cylindrical hydraulic energy storage cylinder barrel 9; the power generation system consists of a hydraulic electromagnetic valve 11, a hydraulic motor 12, a generator 13 and a transmission belt 14 for connecting the hydraulic motor 12 and the generator 13; the fixing system is composed of a horizontal circular platform 15 for supporting the bottom of the cylindrical water supply tank 10, a concrete foundation pile 16, and a steel bracket 17 fixed between the horizontal circular platform 15 and the concrete foundation pile 16.
The specific gravity of the segmental tidal fluctuation bin 1 is smaller than that of seawater, and the segmental tidal fluctuation bin is placed in seawater in a mode that a spherical surface faces downwards and a plane faces upwards and has upward buoyancy and balance force in the horizontal direction; the centre of the plane of the spherical segment tide fluctuation bin 1 is a hemispherical concave surface 18 with the diameter slightly larger than the diameter of the hemispherical bottom end 19 of the cylindrical piston 2, and the hemispherical bottom end 19 of the cylindrical piston 2 vertically stands in the hemispherical concave surface 18 to form hemispherical contact, so that the spherical segment tide fluctuation bin 1 can swing along with waves by taking the hemispherical bottom end 19 of the cylindrical piston 2 as an axis.
The interior of the cylindrical piston 2 is a hollow cavity 20, and the bottom of the cavity 20 is provided with a water inlet pipe 21 which is used for communicating the cylindrical water supply tank 10 and filling fresh water into the cavity 20; the top end of the cavity 20 is provided with a one-way valve 24, when the pressure of the fresh water in the primary hydraulic cylinder 3 sleeved on the upper part of the cylindrical piston 2 is higher than the pressure of the fresh water in the cavity 20, the one-way valve 24 is closed, when the pressure of the fresh water in the primary hydraulic cylinder 3 sleeved on the upper part of the cylindrical piston 2 is lower than the pressure of the fresh water in the cavity 20, the one-way valve 24 is opened, and when the cylindrical piston 2 reciprocates, the fresh water in the cavity 20 can only be injected into the inner cavity of the primary hydraulic cylinder 3 in one way; the check valve 25 is arranged at the top end of the primary hydraulic cylinder barrel 3 sleeved on the upper part of the cylindrical piston 2, and when the primary hydraulic cylinder barrel 3 reciprocates, fresh water in the primary hydraulic cylinder barrel 3 can only be injected into the inner cavity of the secondary hydraulic cylinder barrel 4 in a one-way mode; the top end of the secondary hydraulic cylinder barrel 4 sleeved on the upper part of the primary hydraulic cylinder barrel 3 is provided with a check valve 26, and when the primary hydraulic cylinder barrel 3 reciprocates, fresh water in the secondary hydraulic cylinder barrel 4 can only be injected into the inner cavity of the cylindrical hydraulic energy storage cylinder barrel 9 in a one-way mode; the check valve 28 and the water pipe 27 inserted to the bottom are installed on the upper portion of the inner wall of the secondary hydraulic cylinder 4, when the fresh water pressure inside the secondary hydraulic cylinder 4 is greater than the fresh water pressure inside the cylindrical water supply tank 10, the check valve 28 is closed, and when the fresh water pressure inside the secondary hydraulic cylinder 4 is less than the fresh water pressure inside the cylindrical water supply tank 10, the check valve 28 opens the inner cavity of the secondary hydraulic cylinder 4 through which fresh water in the cylindrical water supply tank 10 is injected in a single direction through the water pipe 27.
The specific gravity of the wave buoyancy ball 6 fixed at one end of the lever hinge 5 is smaller than that of the sea water, and when the wave buoyancy ball 6 floating on the sea surface fluctuates along with the sea waves, the semicircular gear 7 fixed at the other end of the lever hinge 5 drives the cylindrical piston to synchronously move up and down by meshing the driving rack 8.
The upper part of the cylindrical water supply tank 10 is provided with an exhaust hole 30 communicated with the external atmosphere and has the function of supplementing fresh water; the bottom of the cylindrical water supply tank 10 is provided with a water supply pipe 23, and fresh water is injected into the cavity 20 of the cylindrical piston 2 by connecting the water supply pipe 23 with a water inlet pipe 21 through a flexible water pipe 22.
The segment-shaped tide fluctuation bin 1 and the wave buoyancy ball 6 drive the cylindrical piston 2 to move up and down along the vertical direction with the fluctuation of tides and waves by means of a lever device and a hydraulic device, and fresh water in the cylindrical water supply tank 10 is lifted to the cylindrical hydraulic energy storage cylinder 9 with higher position and larger water pressure for energy storage.
The cylindrical gravity piston 29 with the specific gravity several times that of water is adopted to seal the water body inside the cylindrical hydraulic energy storage cylinder barrel 9 by utilizing the self-weight, so that the higher pressure of the water body is kept on one hand, and the volume of the cylindrical hydraulic energy storage cylinder barrel 9 is convenient to change along with the increase and decrease of the volume of the high-pressure water.
One end of the high-pressure water pipe 31 is communicated with the bottom of the cylindrical hydraulic energy storage cylinder barrel 9, and the other end of the high-pressure water pipe is communicated with the bottom of the cylindrical water supply tank 10 positioned below the cylindrical hydraulic energy storage cylinder barrel 9; the high-pressure water pipe 31 is provided with a hydraulic electromagnetic valve 11 for controlling the opening, the closing and the flow rate of fluid in the high-pressure water pipe 31; the hydraulic motor 12 drives the generator 13 to run through the transmission belt 14 under the push of the high pressure fluid inside the high pressure water pipe 31.
The horizontal round platform 15 is supported by 3-5 steel supports 17 and a corresponding number of concrete foundation piles 16, and the height of the horizontal round platform is fixed above the sea surface in the high tide period; one end of a steel bracket 17 is fixed at the edge of the horizontal round platform 15, and the other end is fixed at the top of the concrete foundation pile 16; the concrete foundation pile 16 is higher than the sea surface in the low tide stage, and the bottom of the concrete foundation pile is fixed on the seabed.
Description of the drawings
FIG. 1 is a schematic diagram of a wave and tide co-operating power plant.
Fifth, detailed description of the invention
Wave and tidal power generation facility in coordination comprises tidal energy conversion system, wave energy conversion system, energy storage system, power generation system and fixed system, utilizes the electromechanical device who installs at sea to convert into sustainable output's electric energy after wave energy and tidal energy storage, and its specific implementation mode is:
the cylindrical water supply tank 10 is supplied with fresh water in a circulating manner, and hydraulic oil which is high in cost and easily causes pollution or seawater which corrodes metal materials is not used. The cylindrical water supply tank 10 and the cylindrical hydraulic energy storage cylinder barrel 9 are made of high-strength corrosion-resistant materials such as stainless steel, glass fiber reinforced plastics or engineering plastics and are made into an integral structure shell which can bear water pressure and dead weight. The bottom end of the cylindrical hydraulic energy storage cylinder barrel 9, the top end of the cylindrical water supply tank 10 and the top end of the secondary hydraulic cylinder barrel 4 are located on the same plane, the secondary hydraulic cylinder barrel 4 is fixed at the position of a middle shaft of the cylindrical water supply tank 10, the length of the secondary hydraulic cylinder barrel 4 is larger than or equal to the height difference between the high-tide sea level and the low-tide sea level according to on-site measurement, and the top end of the secondary hydraulic cylinder barrel 4 is prevented from being damaged when the cylindrical piston 2 floats upwards in the high-tide stage. The volume of the cylindrical hydraulic energy storage cylinder barrel 9 is larger than or equal to the sum of the volume of the first-stage hydraulic cylinder barrel 3 and the volume of the second-stage hydraulic cylinder barrel 4, and fresh water in the cylindrical hydraulic energy storage cylinder barrel 9 is prevented from overflowing.
The hydraulic motor 12, the cylindrical hydraulic energy storage cylinder 9 and the cylindrical water supply tank 10 are fixed on the horizontal circular platform 15, and operation and maintenance are convenient. The height of the horizontal circular platform 15 from the sea level in the low tide stage is equal to the sum of the length of the first-stage hydraulic cylinder 3 and the length of the cylindrical piston 2, and the dislocation of the first-stage hydraulic cylinder 3 and the cylindrical piston 2 in the low tide stage is avoided.
The flexible water pipe 22 is adopted to connect the water supply pipe 23 and the water inlet pipe 21, so that the water supply of the cylindrical water supply tank 10 to the inner cavity 20 of the cylindrical piston 2 is not influenced during the process that the cylindrical piston 2 moves up and down along with tides. The distance between the wave buoyancy ball 6 and the fulcrum of the lever hinge 5 needs to be larger than the distance between the semicircular gear 7 and the fulcrum of the lever hinge 5, so that the wave buoyancy ball 6 can play a lever role.
Because the segmental tidal fluctuation bin 1 and the wave buoyancy ball 6 float on the sea surface for a long time to operate, the shell is made of high-strength corrosion-resistant materials such as stainless steel, glass fiber reinforced plastic or engineering plastics. The segmental tidal fluctuation bin 1 pushes the cylindrical piston 2 to work under the action of buoyancy, the upper plane of the segmental tidal fluctuation bin is greatly stressed, and a rigid supporting structure needs to be installed for reinforcement.
In addition, a sufficient number of wave and tide cooperative power generation equipment is installed on the shore with gentle seabed, large wave and 2-5 m of wave and tide fall, and the cost performance is high.
Claims (9)
1. The wave and tide cooperative power generation equipment is characterized by comprising a tidal energy conversion system, a wave energy conversion system, an energy storage system, a power generation system and a fixing system; the tidal energy conversion system consists of a segmental tidal fluctuation bin 1 positioned on the sea level, a cylindrical piston 2 vertically erected at the position of the center of a plane of the segmental tidal fluctuation bin 1, a primary hydraulic cylinder barrel 3 sleeved on the upper part of the cylindrical piston 2 and a secondary hydraulic cylinder barrel 4 sleeved on the upper part of the primary hydraulic cylinder barrel 3; the wave energy conversion system consists of a lever hinge 5 fixed on the edge of the plane of the segment-shaped tide fluctuation bin 1, a wave buoyancy ball 6 fixed at one end of the lever hinge 5, a semicircular gear 7 fixed at the other end of the lever hinge 5 and a rack 8 fixed at the lower part of the cylindrical piston 2 and meshed with the semicircular gear 7 along the vertical direction; the energy storage system consists of a cylindrical hydraulic energy storage cylinder barrel 9, a cylindrical gravity piston 29 matched with the cylindrical hydraulic energy storage cylinder barrel 9 and a cylindrical water supply tank 10 positioned below the cylindrical hydraulic energy storage cylinder barrel 9; the power generation system consists of a hydraulic electromagnetic valve 11, a hydraulic motor 12, a generator 13 and a transmission belt 14 for connecting the hydraulic motor 12 and the generator 13; the fixing system is composed of a horizontal circular platform 15 for supporting the bottom of the cylindrical water supply tank 10, a concrete foundation pile 16, and a steel bracket 17 fixed between the horizontal circular platform 15 and the concrete foundation pile 16.
2. The wave and tide cooperative power generation equipment according to claim 1, wherein the specific gravity of the segment-shaped tide fluctuation bin 1 is smaller than that of seawater, and the segment-shaped tide fluctuation bin is placed in the seawater in a way that a spherical surface faces downwards and a plane faces upwards and has upward buoyancy and horizontal balance force; the centre of the plane of the spherical segment tide fluctuation bin 1 is a hemispherical concave surface 18 with the diameter slightly larger than the diameter of the hemispherical bottom end 19 of the cylindrical piston 2, and the hemispherical bottom end 19 of the cylindrical piston 2 vertically stands in the hemispherical concave surface 18 to form hemispherical contact, so that the spherical segment tide fluctuation bin 1 can swing along with waves by taking the hemispherical bottom end 19 of the cylindrical piston 2 as an axis.
3. The wave and tide cooperative power generation device according to claim 1, wherein the cylindrical piston 2 is internally provided with a hollow cavity 20, and the bottom of the cavity 20 is provided with an inlet pipe 21 for communicating with the cylindrical water supply tank 10 to fill the cavity 20 with fresh water; the top end of the cavity 20 is provided with a one-way valve 24, when the pressure of the fresh water in the primary hydraulic cylinder 3 sleeved on the upper part of the cylindrical piston 2 is higher than the pressure of the fresh water in the cavity 20, the one-way valve 24 is closed, when the pressure of the fresh water in the primary hydraulic cylinder 3 sleeved on the upper part of the cylindrical piston 2 is lower than the pressure of the fresh water in the cavity 20, the one-way valve 24 is opened, and when the cylindrical piston 2 reciprocates, the fresh water in the cavity 20 can only be injected into the inner cavity of the primary hydraulic cylinder 3 in one way; the check valve 25 is arranged at the top end of the primary hydraulic cylinder barrel 3 sleeved on the upper part of the cylindrical piston 2, and when the primary hydraulic cylinder barrel 3 reciprocates, fresh water in the primary hydraulic cylinder barrel 3 can only be injected into the inner cavity of the secondary hydraulic cylinder barrel 4 in a one-way mode; the top end of the secondary hydraulic cylinder barrel 4 sleeved on the upper part of the primary hydraulic cylinder barrel 3 is provided with a check valve 26, and when the primary hydraulic cylinder barrel 3 reciprocates, fresh water in the secondary hydraulic cylinder barrel 4 can only be injected into the inner cavity of the cylindrical hydraulic energy storage cylinder barrel 9 in a one-way mode; the check valve 28 and the water pipe 27 inserted to the bottom are installed on the upper portion of the inner wall of the secondary hydraulic cylinder 4, when the fresh water pressure inside the secondary hydraulic cylinder 4 is greater than the fresh water pressure inside the cylindrical water supply tank 10, the check valve 28 is closed, and when the fresh water pressure inside the secondary hydraulic cylinder 4 is less than the fresh water pressure inside the cylindrical water supply tank 10, the check valve 28 opens the inner cavity of the secondary hydraulic cylinder 4 through which fresh water in the cylindrical water supply tank 10 is injected in a single direction through the water pipe 27.
4. The wave and tide cooperative power generation equipment as claimed in claim 1, wherein the specific gravity of the wave buoyancy ball 6 fixed at one end of the lever hinge 5 is smaller than that of the sea water, and when the wave buoyancy ball 6 floating on the sea surface fluctuates with the waves, the semicircular gear 7 fixed at the other end of the lever hinge 5 drives the cylindrical piston to synchronously move up and down by meshing the driving rack 8.
5. The wave and tide combined power generation device as claimed in claim 1, wherein the cylindrical water supply tank 10 is provided with an exhaust hole 30 at the upper part thereof for communicating with the external atmosphere and having a function of supplementing fresh water; the bottom of the cylindrical water supply tank 10 is provided with a water supply pipe 23, and fresh water is injected into the cavity 20 of the cylindrical piston 2 by connecting the water supply pipe 23 with a water inlet pipe 21 through a flexible water pipe 22.
6. The wave and tide cooperative power generation equipment as claimed in claim 1, wherein the segment-shaped tide fluctuation bin 1 and the wave buoyancy ball 6 drive the cylindrical piston 2 to move up and down along the vertical direction along with the fluctuation of tide and wave by means of a lever device and a hydraulic device, so as to lift the fresh water in the cylindrical water supply tank 10 to the cylindrical hydraulic energy storage cylinder 9 with higher water pressure for energy storage.
7. A wave and tide cooperative power generation device as claimed in claim 1, wherein a cylindrical gravity piston 29 with a specific gravity several times that of water is used to seal the water inside the cylindrical hydraulic energy storage cylinder 9 by its own weight, so as to maintain the higher pressure of the water and to facilitate the change of the volume of the cylindrical hydraulic energy storage cylinder 9 with the increase and decrease of the volume of the high-pressure water.
8. A wave and tide combined power generation device according to claim 1, characterized in that the high-pressure water pipe 31 has one end communicated with the bottom of the cylindrical hydraulic energy storage cylinder 9 and the other end communicated with the bottom of the cylindrical water supply tank 10 positioned below the cylindrical hydraulic energy storage cylinder 9; the high-pressure water pipe 31 is provided with a hydraulic electromagnetic valve 11 for controlling the opening, the closing and the flow rate of fluid in the high-pressure water pipe 31; the hydraulic motor 12 drives the generator 13 to run through the transmission belt 14 under the push of the high pressure fluid inside the high pressure water pipe 31.
9. A wave and tide co-operating power generation device as claimed in claim 1, wherein the horizontal circular platform 15 is supported by 3-5 steel supports 17 and a corresponding number of concrete foundation piles 16, and is fixed in height above the sea surface during high tide; one end of a steel bracket 17 is fixed at the edge of the horizontal round platform 15, and the other end is fixed at the top of the concrete foundation pile 16; the concrete foundation pile 16 is higher than the sea surface in the low tide stage, and the bottom of the concrete foundation pile is fixed on the seabed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249012.2A CN114810464A (en) | 2022-03-10 | 2022-03-10 | Wave and tide cooperative power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210249012.2A CN114810464A (en) | 2022-03-10 | 2022-03-10 | Wave and tide cooperative power generation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114810464A true CN114810464A (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210249012.2A Pending CN114810464A (en) | 2022-03-10 | 2022-03-10 | Wave and tide cooperative power generation equipment |
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|---|---|
| CN (1) | CN114810464A (en) |
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2022
- 2022-03-10 CN CN202210249012.2A patent/CN114810464A/en active Pending
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Effective date of registration: 20221013 Address after: Room 1811, Block A, OCT Building, No. 9018, Shennan Avenue, Zhongxin Street Community, Shahe Street, Nanshan District, Shenzhen, Guangdong 518000 Applicant after: Shenzhen Pitch Technology Co.,Ltd. Address before: 518100 Room 501, building D, Lingxiu garden, Hangcheng Avenue, Bao'an District, Shenzhen, Guangdong Province Applicant before: Liu Jinqi |
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