Single-column type offshore wind power coupling wave energy power generation system in shallow water area

Abstract

The invention relates to the technical field of power generation equipment, in particular to a shallow water single-column type offshore wind power coupling wave energy power generation system, a wind power generation system is mounted at the top of a single-column foundation, and a wave energy power generation system is slidably connected to the wave position of the lower portion of the single-column foundation. The sea area can be greatly reduced, equipment such as pile foundations, cables and transformer substations of the wind generating sets can be fully utilized by wave energy power generation equipment, only certain equipment and main material parameters need to be properly improved, the offshore wind generating sets are easy to find when being tall and poor in light, the influence on surrounding ships is reduced, and the offshore wind generating sets can be widely used. The installed capacity of the whole power generation field is relatively improved, the proportion of the influence of voltage and frequency brought by wave energy power generation equipment on the whole power generation field is reduced, and the stability of voltage, frequency and the like of the power generation field is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a shallow water single-column offshore wind-coupled wave energy power generation system. Background Art

[0002] Single-column wind turbines only have a single type of wind power generation equipment, which uses wind energy to generate electricity. Wave power generation equipment is set up separately and is not coupled with other power generation methods. Wave energy is coupled with other forms of offshore wind turbines as an auxiliary power generation equipment, but the installed capacity and scale are small. Under existing technical conditions, offshore wind power generation and wave power generation that are invested separately face the problem of high investment cost per unit installed capacity.

[0003] The current wind power generation and wave power generation still have the following problems: (1) The sea area cannot be fully utilized effectively.

[0004] (2) When wind power generation and wave power generation are constructed separately, pile foundations, cables, substation capacity, etc. cannot be used efficiently.

[0005] (3) When the ambient light is poor, it is more difficult to detect wave energy power generation equipment than offshore wind power generation equipment, and it poses a greater risk to surrounding ships.

[0006] (4) Wave energy power generation equipment: As the waves move up and down, power generation becomes intermittent, causing unstable voltage and frequency.

[0007] To this end, the present application designs a shallow water single-column offshore wind-coupled wave energy power generation system and solves the above-mentioned problems. Summary of the invention

[0008] In order to make up for the deficiencies in the prior art, the present invention provides a shallow water single-column offshore wind-coupled wave energy power generation system.

[0009] A shallow water single-column offshore wind-coupled wave energy power generation system comprises a single-column foundation erected on the seabed, characterized in that: A wind power generation system is installed on the top of the single-column foundation, and a wave energy generation system is slidably connected to the waves at the bottom of the single-column foundation.

[0010] Furthermore, in order to better realize the present invention, the wave energy power generation system includes a wave energy power generation system shell that is slidably connected to the single column foundation up and down, an upper sealing ring is provided at the highest point of the upper half of the wave energy power generation system shell that contacts the single column foundation, and a lower sealing ring is provided at the bottom of the lower half of the wave energy power generation system shell.

[0011] Furthermore, in order to better realize the present invention, the lower sealing ring allows the shell of the wave energy power generation system and the single-column foundation to slide effectively while reducing the entry of external foreign matter, especially reducing the entry speed of seawater. When the shell of the wave energy power generation system enters a certain amount of seawater from the lower sealing ring, the gravity of the wave energy power generation system and the buoyancy of the seawater are basically balanced, and the seawater floats up and down with the wave energy power generation system, and the flow of seawater in and out of the lower sealing ring becomes smaller, and the amount of seawater at the bottom of the shell of the wave energy power generation system is basically stable.

[0012] Furthermore, in order to better realize the present invention, a gap is left between the inner side of the moving column of the moving column in the shell of the wave energy power generation system and the single-column foundation, so that no direct friction is generated. The outer side of the moving column covers the wave energy generator to prevent the wave energy generator from being eroded by sea water. The upper part and the lower part of the moving column are respectively sealed with the upper part and the lower part of the single-column foundation, which can ensure relative movement, avoid direct friction, and ensure that the wave energy generator is protected from sea water erosion.

[0013] Furthermore, in order to better realize the present invention, a single-column foundation is provided on the single-column foundation, and the single-column foundation rack meshes with the wave energy generator gear of the wave energy generator. The waves drive the moving column up and down through the sinking and floating of the wave energy power generation system shell, thereby driving the wave energy generator gear to rotate, so that the wave energy generator rotates to generate electricity.

[0014] The beneficial effects of the present invention are: The shallow water single-column offshore wind-coupled wave energy power generation system of the present invention can greatly reduce the use of sea area. The wave energy power generation equipment can make full use of the pile foundation, cables, substation and other equipment of the wind turbine generator set. It only needs to appropriately improve some equipment and main material parameters. The offshore wind turbine generator set is tall and easy to find when the light is poor, which reduces the impact on surrounding ships and relatively increases the installed capacity of the entire power plant. The proportion of the impact of voltage and frequency brought by the wave energy power generation equipment on the entire power plant is reduced, and the stability of the voltage, frequency, etc. of the power plant is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention.

[0016] In the figure, 1. Single-column offshore wind-coupled wave energy power generation system in shallow waters, 2. Casing of wave energy power generation system, 3. Upper sealing ring, 4. Lower sealing ring, 5. Upper part of moving column, 6. Lower part of moving column, 7. External side of moving column, 8. Wave energy generator, 9. Inner side of moving column, 10. Gear of wave energy generator, 11. Single-column foundation rack, 12. Waves, 13. Seabed. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0019] Figure 1 This is a specific embodiment of the present invention. This embodiment is a single-column offshore wind-coupled wave energy power generation system in shallow waters. The sea level is not flat, and there will always be waves of varying heights. When the wind is strong, the waves are also large; when the wind is weak, medium to large waves may appear due to the gravity of the moon. The energy density of wave energy per unit volume is large, and the probability of an ideal wave height is high. Wave energy development can obtain a larger installed capacity for equipment of a certain volume. This embodiment couples offshore wind power generation and wave energy generation, and can effectively combine existing investments such as the foundation, cables, booster stations, and transmission lines of existing offshore wind turbines. When the relevant technical parameters are appropriately raised, wave energy power generation equipment is added. This technology greatly reduces the amount of pile foundation construction work, reduces the total cable length, and reduces the total booster station investment cost. This embodiment not only effectively saves construction investment, but also reduces the occupation of sea area.

[0020] This embodiment is set up in shallow waters, and the lower half of the wave energy power generation system housing 2 contains many tiny gaps inside to ensure that the wave energy power generation system will not sink below the sea surface and touch the seabed 13. The upper sealing ring 3 is provided at the highest point of the upper half, so that the wave energy power generation system housing 2 and the single-column foundation can slide effectively while reducing the entry of external foreign matter. The lower half has a lower sealing ring 4 at the lowest point, so that the wave energy power generation system housing 2 and the single-column foundation can slide effectively while reducing the entry of external foreign matter, especially reducing the entry speed of seawater.

[0021] When the shell 2 of the wave energy power generation system enters a certain amount of seawater from the lower sealing ring 4, the gravity of the wave energy power generation system and the buoyancy of the seawater are basically balanced. The seawater floats up and down with the wave energy power generation system, and the flow of seawater in and out of the lower sealing ring 4 becomes smaller, and the amount of seawater at the bottom of the shell 2 of the wave energy power generation system is basically stable.

[0022] There is an appropriate gap between the inner side 9 of the moving column and the single column foundation, and no direct friction will be generated. The outer side 7 of the moving column covers the wave energy generator 8 to ensure that the wave energy generator 8 is protected from seawater erosion. The upper part 5 of the moving column and the lower part 6 of the moving column are sealed with the upper part and the lower part of the single column foundation respectively, which can ensure relative movement, avoid direct friction, and protect the wave energy generator 8 from seawater erosion.

[0023] The waves 12 drive the upper part 5 and the lower part 6 of the moving column to move up and down relative to the shallow water single-column offshore wind-coupled wave energy power generation system 1 through the wave energy power generation system casing 2, driving the wave energy generator gear 10 to move relative to the single-column base rack 11, so that the wave energy generator 8 rotates to generate electricity.

[0024] This embodiment can effectively and comprehensively utilize high energy density seawater wave energy, increase the installed capacity of new energy per unit area of ​​sea area, save precious sea area resources, reduce unit investment, effectively utilize single column foundation, cables, booster stations, etc., and improve the overall rate of return of the project.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A shallow water single-column offshore wind-coupled wave energy power generation system, comprising a single-column foundation erected on the seabed (13), characterized in that: A wind power generation system is installed on the top of the single-column foundation, and a wave energy power generation system is slidably connected to the waves (12) at the bottom of the single-column foundation.

2. The shallow water single-column offshore wind-coupled wave energy power generation system according to claim 1 is characterized by: The wave energy power generation system comprises a wave energy power generation system casing (2) which is slidably connected to a single-column foundation up and down, an upper sealing ring (3) is provided at the highest point of the upper half of the wave energy power generation system casing (2) where it contacts the single-column foundation, and a lower sealing ring (4) is provided at the lowest point of the lower half of the wave energy power generation system casing (2).

3. The shallow water single-column offshore wind-coupled wave energy power generation system according to claim 2 is characterized by: The lower sealing ring (4) enables the outer shell (2) of the wave energy power generation system and the single-column foundation to slide effectively while reducing the entry of external foreign matter, in particular reducing the entry speed of seawater. When the outer shell (2) of the wave energy power generation system enters a certain amount of seawater from the lower sealing ring (4), the gravity of the wave energy power generation system and the buoyancy of the seawater are basically balanced, the seawater floats up and down with the wave energy power generation system, the flow rate of seawater entering and leaving the lower sealing ring (4) decreases, and the amount of seawater at the bottom of the outer shell (2) of the wave energy power generation system is basically stable.

4. The shallow water single-column offshore wind-coupled wave energy power generation system according to claim 2 is characterized by: A gap is left between the inner side (9) of the moving column of the moving column in the housing (2) of the wave energy power generation system and the single column foundation, so that no direct friction is generated; the outer side (7) of the moving column covers the wave energy generator (8), so that the wave energy generator (8) is prevented from being corroded by seawater; the upper part (6) of the moving column and the lower part (6) of the moving column are respectively sealed with the upper part and the lower part of the single column foundation, so that relative movement can be ensured, direct friction can be avoided, and the wave energy generator (8) can be protected from being corroded by seawater.

5. The shallow water single-column offshore wind-coupled wave energy power generation system according to claim 1 is characterized by: The single-column foundation is provided with a single-column foundation rack (11), which meshes with a wave energy generator gear (10) of a wave energy generator (8). The waves (12) drive the moving column to move up and down through the buoyancy of the wave energy power generation system housing (2), thereby driving the wave energy generator gear (10) to rotate, so that the wave energy generator (8) rotates to generate electricity.

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