CN114991195A - Cylindrical foundation structure combining wave energy and wind power generation and construction method thereof - Google Patents
Cylindrical foundation structure combining wave energy and wind power generation and construction method thereof Download PDFInfo
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- CN114991195A CN114991195A CN202210583024.9A CN202210583024A CN114991195A CN 114991195 A CN114991195 A CN 114991195A CN 202210583024 A CN202210583024 A CN 202210583024A CN 114991195 A CN114991195 A CN 114991195A
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- 238000010248 power generation Methods 0.000 title claims abstract description 58
- 238000010276 construction Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 230000009471 action Effects 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
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- 238000000034 method Methods 0.000 claims 1
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- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000735284 Irena Species 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
- E02D27/425—Foundations for poles, masts or chimneys specially adapted for wind motors masts
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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
- F03B13/141—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 with a static energy collector
- F03B13/142—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 with a static energy collector which creates an oscillating water column
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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
- F03B13/24—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy to produce a flow of air, e.g. to drive an air turbine
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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
- 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
- F03D13/22—Foundations specially adapted for wind motors
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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
- 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
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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
- F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
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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
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The invention discloses a cylindrical foundation structure combining wave energy and wind power generation and a construction method thereof, wherein the cylindrical foundation structure comprises a lower part cabin type cylindrical foundation and an upper part cabin type oscillating water column type wave energy conversion device which are of an integrated structure; the cabin-dividing cylindrical foundation comprises an outer cylinder body, a cover plate and a cabin dividing plate, wherein the inner part of the outer cylinder body is divided into a plurality of side cabins and a middle cabin by the cabin dividing plate; the top of each cabin is provided with a ball valve; the cabin-divided oscillating water column type wave energy conversion device comprises a central upright post, an oscillating outer cylinder and a stiffening plate; the stiffening plates are arranged between the central upright post and the oscillating outer barrel, the annular space is divided into a plurality of oscillating water column type power generation cabins, and the stiffening plates correspond to the cabin dividing plates one by one; a gap is formed between the cabin-type oscillating water column type wave energy conversion device and the cabin-type cylindrical foundation; and the top of each oscillating water column type power generation cabin is provided with a pneumatic turbine generator. The invention can utilize the advantage that the suction force of the cylindrical foundation sinks, improve the comprehensive power generation efficiency of the structure and reduce the construction period and the construction cost.
Description
Technical Field
The invention relates to a novel offshore foundation structure, in particular to a cylindrical foundation structure combining wave energy and wind power generation and a construction method thereof.
Background
The carbon emission is closely related to national economic development, the increase of greenhouse gases threatens a life system, and the optimization of an energy structure can realize the carbon reduction and carbon control from the source. The vigorous development of new offshore energy is one of the main means for achieving the goals of carbon peak reaching and carbon neutralization. In recent years, offshore wind power is rapidly developed, according to statistics of a global offshore wind power report 2020 recently released by a world offshore wind power forum (WFO), in 2020, the newly increased global offshore wind power capacity still exceeds 2019, the newly increased global offshore wind power capacity is 5206MW, the newly increased annual installed capacity is high, and by the end of 2020, the accumulated global offshore wind power installed capacity is 32510 MW.
The offshore wind power foundation structure has various forms, wherein the cylindrical foundation has the advantages of integral towing, convenient installation and recovery; wave energy power generation is the fastest ocean energy developed after tidal power generation, and the oscillating water column type wave energy power generation device has the advantages of stable performance and simple structural form. According to the survey of an Ocean Energy System (OES), the Ocean Energy development potential is huge, the world wave Energy storage amount is 29500 TWh/year, and the total resource storage amount is about more than 2 times of the electricity consumption at the present stage of the world. At present, the total installed capacity of the ocean power generation device is about 535MW, which is less than 0.4% of the total global electric power installed, and most ocean power technologies are still in the development stage. According to the prediction of the international renewable energy agency IRENA, the global ocean energy installed capacity is predicted to reach 3.0GW in the next 5 years, and 70GW and 350GW are respectively realized by 2030 and 2050.
Disclosure of Invention
Based on the design requirements of fully developing and utilizing new offshore energy and reducing the electricity consumption cost, the invention provides the cylindrical foundation structure combining wave energy and wind power generation and the construction method thereof, the advantage that the suction force of the cylindrical foundation sinks can be utilized, the comprehensive power generation efficiency of the structure is improved, and meanwhile, the construction period and the construction cost are reduced.
The purpose of the invention can be realized by the following technical scheme.
The invention relates to a cylindrical foundation structure for combined wave energy and wind power generation, which comprises a lower part cabin type cylindrical foundation and an upper part cabin type oscillating water column type wave energy conversion device;
the cabin-dividing cylindrical foundation is arranged into an integral structure and comprises an outer cylinder body, a cover plate is arranged at the upper end of the outer cylinder body, and the inner part of the outer cylinder body is divided into a middle cabin and a side cabin by a cabin-dividing plate; the top of the middle cabin and the cabin top of each side cabin are provided with ball valves for water inlet, water outlet and air exhaust, when the foundation structure is installed, the ball valves are used for pumping water and exhausting air outwards, so that the air pressure in the cabins is lower than the atmospheric pressure, the cabin-type cylindrical foundation is made to be injected into a foundation, and when the foundation structure is recovered, the cabin-type cylindrical foundation is filled with water and inflated, so that the mud surface is pushed out;
the cabin-divided oscillating water column type wave energy conversion device is arranged into an integral structure and comprises a central upright post, an oscillating outer barrel and a stiffening plate; the lower part of the oscillation outer cylinder is suspended in the air and is coaxially nested outside the central upright post, the stiffening plate is arranged between the central upright post and the oscillation outer cylinder, and an annulus between the central upright post and the oscillation outer cylinder is divided into N oscillation water column type power generation cabins; the stiffening plates correspond to the cabin plates in the cabin-divided cylindrical foundation one by one, and the lower ends of the stiffening plates extend to the outside of the oscillation outer barrel, so that a certain gap is reserved between the cabin-divided oscillation water column type wave energy conversion device and the cabin-divided cylindrical foundation, and sea waves enter the cabin; the top of each oscillating water column type power generation cabin is provided with a pneumatic turbine generator, the pneumatic turbine generators rotate in the same direction under the action of bidirectional airflow, and air in the cabin is compressed under the action of sea waves to drive the pneumatic turbine generators to generate power.
The axial lengths of the outer cylinder, the inner cylinder and the cabin dividing plate are equal.
And the upper part of the central upright post is provided with a flange plate for mounting a tower drum and a machine head of the wind driven generator.
The purpose of the invention can be realized by the following technical scheme.
The invention relates to a construction method of a cylindrical foundation structure combining wave energy and wind power generation, which comprises the following steps:
the first step is as follows: on land, a cabin-type cylindrical foundation and a cabin-type oscillating water column type wave energy conversion device are respectively prefabricated, wherein the altitude of the top of a cabin where a pneumatic turbine generator is located is larger than an extreme high water level which is met for 20 years, so that the pneumatic turbine generator on the upper portion is not submerged by seawater, and the altitude of the lower edge of the side wall of an oscillating water column type power generation cabin is required to ensure that sea waves can enter the cabin after the pneumatic turbine generator is installed in place;
the second step: assembling the upper cabin type oscillating water column type wave energy conversion device with a cabin type cylindrical foundation, wherein the stiffening plate of the cabin type oscillating water column type wave energy conversion device corresponds to the cabin plate in the cabin type cylindrical foundation in position, so that the integrity of the structure is enhanced, and the force transmission performance of the structure is optimized; checking the air tightness of the interior of the upper part cabin type oscillating water column type wave energy conversion device and the air tightness of the cabin type cylindrical foundation after the assembly is finished;
the third step: after the air tightness meets the requirement, a water pumping and air extracting device is arranged on a ball valve at the top of each sub-cabin of the sub-cabin type cylindrical foundation, a pneumatic turbine generator is arranged at the top of the sub-cabin type oscillating water column type wave energy conversion device, then the cylindrical foundation structure combining wave energy and wind power generation is integrally hoisted to a barge and fixed, and finally a tower barrel and a nose of an upper wind driven generator are connected with a flange plate at the upper part of a central upright post;
the fourth step: transporting a barge and a cylindrical foundation structure combining wave energy and wind power generation to a designated design construction position;
the fifth step: integrally hoisting the cylindrical foundation structure combining the wave energy and the wind power generation away from the barge, and opening a ball valve at the top of a subdivision of the subdivision type cylindrical foundation so that the cylindrical foundation structure combining the wave energy and the wind power generation sinks under the action of self weight; when the cylindrical foundation structure for combined wave energy and wind power generation sinks in place under the action of self weight, a water pumping and air exhausting device at the top of the cabin-divided cylindrical foundation is opened, and water vapor in the cabin is pumped out, so that the pressure in the cabin is smaller than atmospheric pressure, and the cylindrical foundation structure for combined wave energy and wind power generation sinks in place under the action of pressure difference;
and a sixth step: and (4) after the cylindrical foundation structure combining wave energy and wind power generation is sunk in place, the water and air pumping device at the upper part of the ball valve is disassembled, and the construction is finished.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
(1) the invention can realize the simultaneous power generation of wave energy and wind energy, improves the utilization rate of ocean energy, reduces the comprehensive cost and the power consumption cost, and improves the comprehensive utilization efficiency of the foundation structure.
(2) The cabin distribution plate in the upper wave power generation device plays a role in reinforcing the transition section of the lower cylindrical foundation, and the integrity and the force transmission performance of the foundation structure are optimized.
(3) The invention integrates the advantages of the cabin-type cylindrical foundation and the oscillating water column type wave energy power generation device, has mature construction and construction technology, and has good economical efficiency and feasibility.
Drawings
FIG. 1 is a schematic view of the installation of a barrel-type foundation structure for combined wave energy and wind power generation of the present invention;
FIG. 2 is a front view of a barrel-type infrastructure of the present invention combining wave energy and wind power generation;
FIG. 3 is a top view of a barrel-type foundation structure for combined wave and wind power generation of the present invention;
FIG. 4 is a front view of the partitioned oscillating water column type wave energy conversion device of the present invention;
FIG. 5 is a top view of the partitioned oscillating water column type wave energy conversion device of the present invention;
FIG. 6 is a side view of the present invention;
fig. 7 is a schematic view of the in-place state of the barrel-type foundation structure for combined wave energy and wind power generation of the invention.
Reference numerals: 1-a machine head, 2-a tower barrel, 3-a flange plate, 4-a stiffening plate, 5-an oscillating water column type power generation cabin, 6-a ball valve, 7-a cabin type cylindrical foundation, 8-a cabin division plate, 9-a central upright post, 10-a water surface, 11-a seabed, 12-an oscillating outer barrel, 13-a pneumatic turbine generator, 14-an outer barrel, 15-a cover plate, 16-a side cabin and 17-a middle cabin; 18-subdivision type oscillating water column type wave energy conversion device.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the barrel type foundation structure for combined wave energy and wind power generation of the present invention includes a lower part cabin type barrel type foundation 7 and an upper part cabin type oscillating water column type wave energy conversion device 18.
The subdivision type cylindrical foundation 7 is of an integrated structure and comprises an outer barrel 14, a cover plate 15 is arranged at the upper end of the outer barrel 14, a middle cabin 17 and N side cabins 16 are divided into the inner part of the outer barrel 14 through a subdivision plate 8, and 3-8 are preferably selected from N. The axial lengths of the outer cylinder 14 and the subdivision plate 8 are equal. The tops of the middle cabin 17 and each side cabin 16 are provided with a hole, the ball valves 6 for water inlet, water outlet and air exhaust are arranged, and the base structure pumps water and air outwards through the ball valves 6 during installation to ensure that the air pressure in the cabin is lower than the atmospheric pressure, so that the cabin-divided cylindrical foundation 7 is penetrated into a foundation; during the recovery, water is injected into the cabin for inflation, so that the cabin type cylindrical foundation 7 is pushed out of the mud surface.
As shown in fig. 4 to 6, the cabin-type oscillating water column type wave energy conversion device 18 is an integral structure and comprises a central upright post 9, an oscillating outer cylinder 12 and a stiffening plate 4. And the upper part of the central upright post 9 is provided with a flange 3 for mounting a tower barrel 2 and a machine head 1 of the wind driven generator. The lower part of the oscillation outer cylinder 12 is suspended, and is coaxially nested and arranged outside the central upright post 9, the stiffening plate 4 is arranged between the central upright post 9 and the oscillation outer cylinder 12, and an annular space between the central upright post 9 and the oscillation outer cylinder 12 is divided into N oscillation water column type power generation cabins 5. The stiffening plates 4 correspond to the cabin-dividing plates 8 in the cabin-dividing cylindrical foundation 7 one by one, so that the force applied to the upper structure can be effectively transmitted to the cabin-dividing cylindrical foundation 7 through the stiffening plates 4, the structural integrity is improved, meanwhile, the structural force transmission is optimized, and the dual functions of reinforcing the upper transition section of the central upright post 9 and dividing the cabin-dividing oscillating water column type wave energy conversion device 18 are achieved. The lower end of the stiffening plate 4 extends to the outside of the oscillation outer cylinder 12, so that a certain gap is reserved between the cabin type oscillation water column type wave energy conversion device 18 and the cabin type cylinder type foundation 7, and thus sea waves can enter the cabin. The top of each oscillating water column type power generation cabin 5 is provided with a hole for installing a pneumatic turbine generator 13, the pneumatic turbine generator 13 can rotate in the same direction under the action of bidirectional airflow, and under the action of sea waves, the sea waves fluctuate up and down to compress air in the cabin to drive the pneumatic turbine generator 13 to generate power.
The invention relates to a construction method of a barrel-type foundation structure combining wave energy and wind power generation, which comprises the following steps:
the first step is as follows: a cabin-divided cylindrical foundation 7 is prefabricated on land and comprises an outer cylinder 14, a cover plate 15, a cabin dividing plate 8 and a ball valve 6 at the top of a cabin, the overall diameter of the cabin-divided cylindrical foundation 7 is 20-40 m, and the height of the cylinder is 10-20 m. A split-cabin type oscillating water column type wave energy conversion device 18 is prefabricated on land and comprises a central upright post 9, a stiffening plate 4, an oscillating outer cylinder 12 and a pneumatic turbine generator 13 at the top. The altitude of the top of the cabin where the pneumatic turbine generator 13 is located should be greater than the extreme high water level which is met for 20 years, so as to ensure that the pneumatic turbine generator 13 at the upper part is not submerged by seawater, and the altitude of the lower edge of the side wall of the oscillating water column type power generation cabin 5 should ensure that sea waves can enter the cabin after the foundation structure is installed in place, so as to ensure that the upper and lower fluctuating liquid level exists in the cabin-type oscillating water column type wave energy conversion device 18 at the upper part, so as to achieve the purpose of compressing air in the cabin to drive the pneumatic turbine generator 13 to rotate.
The second step: the upper subdivision type oscillating water column type wave energy conversion device 18 and the subdivision type cylindrical foundation 7 are assembled, so that the stiffening plate 4 of the subdivision type oscillating water column type wave energy conversion device 18 corresponds to the subdivision plate 8 inside the subdivision type cylindrical foundation 7 in position, force borne by the upper structure can be transmitted to the subdivision type cylindrical foundation 7, the integrity and the force transmission performance of the structure are enhanced, and the purpose of optimizing the force transmission of the structure is achieved. After the assembly is completed, the airtightness of the interior of the upper part cabin type oscillating water column type wave energy conversion device 18 and the airtightness of the cabin type cylindrical foundation 7 are checked.
The third step: after the air tightness is ensured to meet the requirement, a water pumping and air extracting device is arranged on a ball valve 6 at the top of each subdivision of the subdivision type cylindrical foundation 7, a pneumatic turbine generator 13 is arranged at the top of a subdivision type oscillating water column type wave energy conversion device 18, then the cylindrical foundation structure combining wave energy and wind power generation is integrally hoisted to a barge and fixed, and finally the tower barrel 2 and the nose 1 of the upper wind power generator are connected with the flange 3 at the upper part of the central upright post 9.
The fourth step: and transporting the barge and the barrel-type foundation structure combining wave energy and wind power generation to a designated design construction position.
The fifth step: integrally hoisting the cylindrical foundation structure combining wave energy and wind power generation away from the barge, and opening a ball valve 6 at the top of a subdivision type cylindrical foundation 7 so that the cylindrical foundation structure combining wave energy and wind power generation sinks under the action of self weight; after the cylindrical foundation structure for combined wave energy and wind power generation sinks in place under the action of self weight, the water and air pumping device at the top of the cabin-divided cylindrical foundation 7 is opened, and water and air in the cabin are pumped out, so that the pressure in the cabin is smaller than atmospheric pressure, and the cylindrical foundation structure for combined wave energy and wind power generation sinks in place under the action of pressure difference, as shown in fig. 7.
And a sixth step: after the cylindrical foundation structure combining wave energy and wind power generation is sunk in place, the water and air pumping device at the upper part of the ball valve 6 is disassembled, and construction is finished.
While the present invention has been described in terms of its functions and operations with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise functions and operations described above, and that the above-described embodiments are illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (4)
1. A barrel-type foundation structure combining wave energy and wind power generation is characterized by comprising a lower-part cabin-type barrel-type foundation (7) and an upper-part cabin-type oscillating water column type wave energy conversion device (18);
the cabin-dividing cylindrical foundation (7) is of an integrated structure and comprises an outer cylinder body (14), a cover plate (15) is arranged at the upper end of the outer cylinder body (14), and the inside of the outer cylinder body (14) is divided into a middle cabin (17) and side cabins (16) by a cabin dividing plate (8); the top of the middle cabin (17) and the top of each side cabin (16) are provided with ball valves (6) for water inlet, water outlet and air exhaust, when the foundation structure is installed, the ball valves (6) are used for pumping water and air outwards, so that the air pressure in the cabin is lower than the atmospheric pressure, the cabin-divided cylindrical foundation (7) is penetrated into a foundation, and when the foundation structure is recovered, the cabin is pumped with water and air, so that the cabin-divided cylindrical foundation (7) is pushed out of a mud surface;
the split oscillating water column type wave energy conversion device (18) is arranged into an integral structure and comprises a central upright post (9), an oscillating outer cylinder (12) and a stiffening plate (4); the lower part of the oscillating outer cylinder (12) is suspended in the air and is coaxially nested outside the central upright post (9), the stiffening plate (4) is arranged between the central upright post (9) and the oscillating outer cylinder (12), and an annular space between the central upright post (9) and the oscillating outer cylinder (12) is divided into N oscillating water column type power generation cabins (5); the stiffening plates (4) correspond to the cabin dividing plates (8) in the cabin dividing cylindrical foundation (7) one by one, and the lower ends of the stiffening plates (4) extend to the outside of the oscillating outer cylinder (12), so that a certain gap is reserved between the cabin dividing oscillating water column type wave energy conversion device (18) and the cabin dividing cylindrical foundation (7), and sea waves enter the cabin; the top of each oscillating water column type power generation cabin (5) is provided with a pneumatic turbine generator (13), the pneumatic turbine generators (13) rotate in the same direction under the action of bidirectional airflow, and air in the cabin is compressed under the action of sea waves to drive the pneumatic turbine generators (13) to generate power.
2. A combined wave and wind powered barrel foundation structure according to claim 1, characterised in that the axial lengths of the outer barrel (14) and the subdivision plate (8) are all equal.
3. The barrel type foundation structure for combined wave and wind power generation according to claim 1, characterized in that the central upright post (9) is provided with a flange (3) at the upper part for mounting the tower (2) and the nose (1) of a wind power generator.
4. A method of constructing a combined wave energy and wind power generation tubular foundation structure as claimed in any one of the preceding claims 1 to 3, comprising the steps of:
the first step is as follows: on land, a cabin-divided cylindrical foundation (7) and a cabin-divided oscillating water column type wave energy conversion device (18) are respectively prefabricated, wherein the altitude of the top of a cabin where a pneumatic turbine generator (13) is located is larger than the extreme high water level which is met for 20 years, so that the pneumatic turbine generator (13) on the upper portion is not submerged by seawater, and the altitude of the lower edge of the side wall of an oscillating water column type power generation cabin (5) is required to ensure that sea waves can enter the cabin after the pneumatic turbine generator is installed in place;
the second step is that: assembling a cabin type oscillating water column type wave energy conversion device (18) at the upper part with a cabin type cylindrical foundation (7), wherein the stiffening plate (4) of the cabin type oscillating water column type wave energy conversion device (18) corresponds to the cabin plate (8) in the cabin type cylindrical foundation (7), so that the integrity of the structure is enhanced, and the force transmission performance of the structure is optimized; checking the air tightness of the interior of the upper part cabin type oscillating water column type wave energy conversion device (18) and the air tightness of the cabin type cylindrical foundation (7) after the assembly is finished;
the third step: after the air tightness meets the requirement, a water pumping and air extracting device is arranged on a ball valve (6) at the top of each subdivision of the subdivision type cylindrical foundation (7), a pneumatic turbine generator (13) is arranged at the top of a subdivision type oscillating water column type wave energy conversion device (18), then the cylindrical foundation structure combining wave energy and wind power generation is integrally hoisted to a barge and fixed, and finally a tower cylinder (2) and a machine head (1) of an upper wind power generator are connected with a flange plate (3) at the upper part of a central upright post (9);
the fourth step: transporting a barge and a cylindrical foundation structure combining wave energy and wind power generation to a designated design construction position;
the fifth step: integrally hoisting the cylindrical foundation structure combining wave energy and wind power generation away from the barge, and opening a ball valve (6) at the top of a subdivision type cylindrical foundation (7) to enable the cylindrical foundation structure combining wave energy and wind power generation to sink under the action of self weight; when the barrel-type foundation structure combining wave energy and wind power generation sinks in place under the action of self weight, a water pumping and air exhausting device at the top of a cabin of the cabin-divided barrel-type foundation (7) is opened, and water vapor in the cabin is pumped out, so that the pressure in the cabin is smaller than atmospheric pressure, and the barrel-type foundation structure combining wave energy and wind power generation sinks in place under the action of pressure difference;
and a sixth step: after the cylindrical foundation structure combining wave energy and wind power generation is sunk in place, the water and air pumping device at the upper part of the ball valve (6) is disassembled, and construction is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210583024.9A CN114991195A (en) | 2022-05-26 | 2022-05-26 | Cylindrical foundation structure combining wave energy and wind power generation and construction method thereof |
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| CN108061010A (en) * | 2017-11-09 | 2018-05-22 | 大连理工大学 | A kind of single pile formula wind energy-wave energy integrated power generation system suitable for coastal waters |
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| CN108979943A (en) * | 2018-08-27 | 2018-12-11 | 大连理工大学 | A kind of fixed wind energy of four based on suction tube-wave energy integrated power generation system |
| CN110424442A (en) * | 2019-06-28 | 2019-11-08 | 天津大学 | A kind of elasticity transition section cylinder-shaped foundation structure and its construction method |
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| CN113186890A (en) * | 2021-05-10 | 2021-07-30 | 中海油能源发展股份有限公司 | Wind and electricity integrated wellhead platform and construction method thereof |
| CN113529779A (en) * | 2021-08-02 | 2021-10-22 | 长江勘测规划设计研究有限责任公司 | Offshore wind power single-column variable-cross-section steel-concrete negative pressure cylinder foundation and construction method |
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| KR101871249B1 (en) * | 2017-02-22 | 2018-06-27 | 한국해양과학기술원 | Variable Length Chamber Of Oscillating Water Column Wave-Power Generation Device |
| CN108061010A (en) * | 2017-11-09 | 2018-05-22 | 大连理工大学 | A kind of single pile formula wind energy-wave energy integrated power generation system suitable for coastal waters |
| CN108979943A (en) * | 2018-08-27 | 2018-12-11 | 大连理工大学 | A kind of fixed wind energy of four based on suction tube-wave energy integrated power generation system |
| CN110424442A (en) * | 2019-06-28 | 2019-11-08 | 天津大学 | A kind of elasticity transition section cylinder-shaped foundation structure and its construction method |
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