Offshore floating type multi-energy complementary power generation platform

Abstract

The invention discloses an offshore floating type multi-energy complementary power generation platform and belongs to the technical field of ocean power generation. The system comprises a floating platform body, and a wave energy power generation device, a wind power generation device, a hydrogen production device and a monitoring device which are arranged on the floating platform body, the wave energy power generation device comprises an energy storage power generation mechanism and a plurality of swing type wave energy mechanisms arranged on the peripheral side of the wind power generation device. The swing type wave energy mechanism comprises a wave absorbing floating body, a hydraulic cylinder and a locking part; when the real-time sea wave height is greater than a preset wave height value, the locking part is used for separating the wave absorbing floating body from the hydraulic cylinder and fixedly connecting the wave absorbing floating body with the floating platform body; when the real-time sea wave height is smaller than or equal to the preset wave height value, the locking component is used for enabling the wave absorbing floating body to be movably connected with the floating table body and enabling the wave absorbing floating body to be fixedly connected with the hydraulic cylinder. The locking component can fix the wave absorbing floating body with the hydraulic cylinder or the floating platform body according to the height of sea waves, so that the impact damage of extreme waves to the power generation device is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of marine power generation, and in particular to an offshore floating multi-energy complementary power generation platform. Background Art

[0002] Ocean energy resources are rich in reserves, covering a variety of renewable energy sources such as wind energy, wave energy and tidal energy; with the gradual development and iteration of ocean resource development technology, some ocean energy has been developed on a large scale; currently, as the development of offshore wind resources is approaching saturation, people's attention is gradually turning to deep-sea areas with higher wind speeds and lower turbulence, using floating wind turbines to develop these rich wind energy resources; in addition, wave energy is another renewable ocean resource that can be developed. The waves in the deep sea have greater power generation potential due to the increased wind speed, but due to current technology and costs, large-scale development of wave energy still faces many challenges; at the same time, hydrogen is a green energy with high energy density, but traditional fossil energy hydrogen production is not conducive to reducing carbon emissions; using offshore power platforms to generate electricity and electrolyze seawater to produce hydrogen is considered to be one of the potential ways to prepare green hydrogen.

[0003] In the existing wind and wave energy combined hydrogen production power generation platforms, when facing extreme sea conditions such as typhoons and huge waves, the waves formed by extreme sea conditions will cause damage to power generation devices such as wind turbines and wave energy equipment, posing a huge challenge to the power generation performance and safety performance of the power generation platform. How to reduce the impact and damage of waves in extreme sea conditions on power generation devices, thereby improving the power generation stability and safety of the combined power generation platform is a key technical issue. Summary of the invention

[0004] The present invention provides an offshore floating multi-energy complementary power generation platform, which is used to reduce the impact and damage of waves in extreme sea conditions on power generation devices, so as to improve the power generation stability and safety of the combined power generation platform.

[0005] The present invention provides an offshore floating multi-energy complementary power generation platform, comprising a floating platform, and a wave power generation device and a wind power generation device arranged on the floating platform;

[0006] It is characterized by also comprising a monitoring device for monitoring the real-time wave height;

[0007] The wave energy power generation device comprises an energy storage power generation mechanism and a plurality of pendulum wave energy mechanisms arranged on the outer peripheral side of the wind power generation device;

[0008] The pendulum wave energy mechanism comprises a wave absorbing float, a hydraulic cylinder and a locking component;

[0009] The wave-absorbing floating body can be installed on the floating platform in an upside-down manner;

[0010] The hydraulic cylinder is connected and fixed to the floating platform, and the hydraulic cylinder is in communication with the energy storage and power generation mechanism;

[0011] When the real-time sea wave height is greater than a preset wave height value, the locking component is used to separate the wave-absorbing floating body from the hydraulic cylinder and connect and fix the wave-absorbing floating body to the floating platform;

[0012] When the real-time wave height is less than or equal to a preset wave height value, the locking component is used to movably connect the wave-absorbing buoy with the floating platform, and to connect and fix the wave-absorbing buoy with the hydraulic cylinder.

[0013] In one of the embodiments, when the wave-absorbing float is connected and fixed to the floating platform, the floating end of the wave-absorbing float is located above the floating platform.

[0014] In one of the embodiments, when the wave-absorbing float is connected and fixed to the floating platform, the floating end of the wave-absorbing float is located on the inner side of the edge of the floating platform.

[0015] In one embodiment, the locking component includes a first connecting lock with a retractable end and a second connecting lock with a retractable end;

[0016] The wave-absorbing floating body is provided with a locking buckle, and the locking buckle is provided with a locking hole for allowing the end of the first connecting lock or the end of the second connecting lock to move in or out;

[0017] The first connection lock is fixedly connected to the telescopic end of the hydraulic cylinder, the first connection lock is located on the flipping track of the wave-absorbing floating body, and the connection between the wave-absorbing floating body and the hydraulic cylinder is configured such that the end of the first connection lock is clamped in the lock hole;

[0018] The second connection lock is fixedly connected to the floating platform, the second connection lock is located on the flipping track of the wave-absorbing floating body, and the connection between the wave-absorbing floating body and the floating platform is configured such that the end of the second connection lock is clamped in the lock hole.

[0019] In one embodiment, the wave-absorbing float is flip-connected to the floating platform via a fixed axis;

[0020] The upper surface and the lower surface of the wave-absorbing floating body are both provided with the locking buckles;

[0021] The first connecting lock is located below the fixed shaft, the second connecting lock is located above the fixed shaft, and the second connecting lock is located on the inner side of the fixed shaft.

[0022] In one embodiment, both the first connection lock and the second connection lock are electromagnetic locking structures;

[0023] The electromagnetic locking structure comprises a lock housing, an electromagnetic member, a spring and a lock core;

[0024] The end wall of the lock housing is provided with a core through hole for the lock core to pass through or pass through, and the electromagnetic component and the spring are arranged in the lock housing; the lock core is aligned with the core through hole, and the lock core and the electromagnetic component are connected and fixed by the spring.

[0025] In one embodiment, the locking component is an electromagnetic component;

[0026] The electromagnetic component is arranged on the wave-absorbing floating body, the telescopic end of the hydraulic cylinder and the floating platform are arranged on the turning track of the electromagnetic component, and the electromagnetic component is selectively magnetically connected with the telescopic end of the hydraulic cylinder or the floating platform.

[0027] In one embodiment, the floating platform is also provided with a hydrogen production device.

[0028] The floating platform includes a floating foundation body, a floating protection body and a plurality of flexible cables;

[0029] The floating foundation is provided with the wind power generation device and the hydrogen production device;

[0030] The floating protection body is provided with the pendulum wave energy mechanism;

[0031] The floating protection body and a plurality of the flexible cables are provided on the outer peripheral side of the floating foundation body, and the floating foundation body and the floating protection body are connected and fixed by the tensioned flexible cables.

[0032] In one embodiment, the pendulum wave energy mechanism is arranged on the outside of the floating protection body.

[0033] In one embodiment, the floating foundation and the floating protection body are both triangular structures;

[0034] At least three flexible cables are connected and fixed between a corner of each floating foundation body and a corner of an adjacent floating protection body.

[0035] It can be seen from the above technical solutions that the present invention has the following advantages:

[0036] The embodiment of the present invention provides an offshore floating multi-energy complementary power generation platform, including a floating platform, and a wave power generation device, a wind power generation device and a hydrogen production device arranged on the floating platform, so as to realize offshore wind power generation, wave power generation and hydrogen production by electrolysis of seawater, and comprehensively utilize offshore renewable energy; and because a plurality of pendulum wave energy mechanisms are arranged on the outer peripheral side of the wind power generation device, when facing extreme sea conditions, the plurality of pendulum wave energy mechanisms can block the waves and reduce the impact of the waves on the wind power generation device; and because the wave-absorbing buoy can be installed on the floating platform in an upside-down manner, the locking component can make the wave-absorbing buoy and the liquid float rotate according to the size of the wave height. The hydraulic cylinder is connected and fixed or connected and fixed with the floating platform, so in the face of extreme sea conditions, the locking component can separate the wave-absorbing float from the hydraulic cylinder and connect and fix the wave-absorbing float to the floating platform, so that the wave-absorbing float cannot sink or float with the waves, thus avoiding waves from damaging the connection structure between the hydraulic cylinder and the wave-absorbing float and avoiding the wave-absorbing float from overturning and detaching from the platform, providing double protection for the pendulum wave energy mechanism, reducing the possibility of damage to the pendulum wave energy mechanism, effectively protecting the wind power generation device and wave energy mechanism on the power generation platform, reducing the impact and damage of waves in extreme sea conditions on the power generation device, and improving the power generation stability and safety of the combined power generation platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0038] Figure 1 A schematic diagram of the structure of an offshore floating multi-energy complementary power generation platform provided in Embodiment 1 of the present invention;

[0039] Figure 2 A front view of an offshore floating multi-energy complementary power generation platform provided in the first embodiment of the present invention;

[0040] Figure 3 A side view of an offshore floating multi-energy complementary power generation platform provided in Embodiment 1 of the present invention;

[0041] Figure 4 A top view of an offshore floating multi-energy complementary power generation platform provided in Embodiment 1 of the present invention;

[0042] Figure 5 A schematic structural diagram of a floating foundation provided in Embodiment 1 of the present invention;

[0043] Figure 6 A schematic diagram of the structure of a floating protection body provided in Embodiment 1 of the present invention;

[0044] Figure 7 A partial perspective structural diagram of an offshore floating multi-energy complementary power generation platform provided in Embodiment 1 of the present invention;

[0045] Figure 8 A schematic diagram of the structure of a pendulum wave energy mechanism provided in Embodiment 1 of the present invention;

[0046] Fig. 9 A schematic diagram of the partial structure of an offshore floating multi-energy complementary power generation platform provided in the first embodiment of the present invention;

[0047] Fig.10 A schematic diagram of the structure of a locking component provided in Embodiment 1 of the present invention;

[0048] Fig.11 A schematic diagram of a partial cross-sectional structure of a locking component provided in Embodiment 1 of the present invention;

[0049] Fig.12 A schematic structural diagram of a wind power generation device provided in Embodiment 1 of the present invention;

[0050] Fig.13 A schematic diagram of the structure of a hydrogen production device provided in Example 1 of the present invention;

[0051] Fig.14 A schematic diagram of the connection structure of the monitoring device provided in the first embodiment of the present invention;

[0052] Fig.15 A schematic diagram of a wave height determination strategy flow chart provided in the first embodiment of the present invention;

[0053] Fig.16 A schematic diagram of the partial structure of an offshore floating multi-energy complementary power generation platform provided in Embodiment 2 of the present invention.

[0054] Reference numerals:

[0055] 1. Floating platform; 10. Floating foundation; 100. Column; 101. Truss structure; 102. Heave plate; 11. Floating protection body; 110. Fixed shaft; 111. Positioning member; 12. Flexible cable;

[0056] 2. Wave energy power generation device; 20. Energy storage power generation mechanism; 200. Energy storage device; 201. Generator; 21. Pendulum wave energy mechanism; 210. Wave absorbing float; 2100. Locking platform buckle; 211. Hydraulic cylinder; 212. Locking component; 2120. First connecting lock; 2121. Second connecting lock; 2122. Lock housing; 2123. Electromagnetic component; 2124. Spring; 2125. Lock core; 2126. Electromagnetic component;

[0057] 3. Wind power generation device; 30. Blades; 31. Nacelle; 32. Hub; 33. Tower;

[0058] 4. Hydrogen production device; 40. Seawater extraction and water electrolysis hydrogen production mechanism; 41. Separation and purification mechanism; 42. Hydrogen storage tank; 43. Energy storage mechanism;

[0059] 5. Monitoring device; 50. Wave height sensor; 51. Control terminal. DETAILED DESCRIPTION

[0060] The embodiment of the present invention provides an offshore floating multi-energy complementary power generation platform, which is used to reduce the impact and damage of waves in extreme sea conditions on power generation devices and improve the stability and safety of the combined power generation platform.

[0061] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0062] Embodiment 1

[0063] See also Figures 1 to 15 , Embodiment 1 of the present invention provides an offshore floating multi-energy complementary power generation platform, comprising a floating platform 1, and a wave power generation device 2, a wind power generation device 3, a hydrogen production device 4 and a monitoring device 5 for monitoring real-time sea wave height arranged on the floating platform 1;

[0064] The wave energy power generation device 2 includes an energy storage power generation mechanism 20 and a plurality of pendulum wave energy mechanisms 21 disposed on the outer peripheral side of the wind power generation device 3;

[0065] The pendulum wave energy mechanism 21 comprises a wave absorbing float 210, a hydraulic cylinder 211 and a locking component 212;

[0066] The wave-absorbing floating body 210 can be installed on the floating platform 1 in an upside-down manner;

[0067] The hydraulic cylinder 211 is connected and fixed to the floating platform 1, and the hydraulic cylinder 211 is communicated with the energy storage and power generation mechanism 20;

[0068] When the real-time wave height is greater than the preset wave height value, the locking component 212 is used to separate the wave absorbing float 210 from the hydraulic cylinder 211, and to connect and fix the wave absorbing float 210 to the floating platform 1;

[0069] When the real-time wave height is less than or equal to the preset wave height value, the locking component 212 is used to flexibly connect the wave absorbing float 210 with the floating platform 1 , and to connect and fix the wave absorbing float 210 with the hydraulic cylinder 211 .

[0070] The working principle of the wave energy power generation device 2 of the present device is as follows: the monitoring device 5 monitors the wave height of the sea waves. If the wave height of the sea waves is less than or equal to the preset wave height value, the wave absorbing float 210 is connected and fixed to the hydraulic cylinder 211 by the locking component 212, and the wave absorbing float 210 is kept in active connection with the floating platform 1. The wave absorbing float 210 can swing up and down with the sea waves, and the wave absorbing float 210 drives the hydraulic rod to move up and down. The kinetic energy generated by the movement of the hydraulic rod is converted into the potential energy of the energy storage power generation mechanism 20 through the hydraulic oil, thereby generating electricity with the help of wave energy; if the wave height of the sea waves is greater than the preset wave height value, the locking component 212 is unlocked, the wave absorbing float 210 is separated from the hydraulic cylinder 211, and the wave absorbing float 210 is reconnected and fixed to the floating platform 1 by the locking component 212, and the wave absorbing float 210 can no longer move with the sea waves, thereby avoiding damage to the pendulum wave energy mechanism 21.

[0071] It can be seen from the above principle that the wave-absorbing buoy 210 will have two connection states according to the wave height of the sea waves. One is when the wave height of the sea waves is less than or equal to the preset wave height value, that is, under normal sea conditions, the wave-absorbing buoy 210 is connected and fixed to the hydraulic cylinder 211, and the wave-absorbing buoy 210 and the floating platform 1 are kept in a state of active connection, and the wave-absorbing buoy 210 can generate electricity by using waves; the other is when the wave height of the sea waves is greater than the preset wave height value, that is, under extreme sea conditions, the wave-absorbing buoy 210 is separated from the hydraulic cylinder 211, and the wave-absorbing buoy 210 is connected and fixed to the floating platform 1. The wave-absorbing buoy 210 separated from the hydraulic cylinder 211 is fixed on the floating platform 1 and will not move with the waves, thereby avoiding the damage of the telescopic connection between the wave-absorbing buoy 210 and the hydraulic cylinder 211 or the damage of the flip connection between the wave-absorbing buoy 210 and the platform by the surging waves and huge waves under extreme sea conditions, thereby providing double protection for the wave energy power generation device 2.

[0072] Compared with the prior art, the present solution has the following advantages: First, the present solution integrates the wave energy power generation device 2, the wind power generation device 3 and the hydrogen production device 4 on the floating platform 1, realizes offshore wind power generation, wave energy power generation and hydrogen production by electrolysis of seawater, can generate electricity complementary to each other under different sea conditions, and can consume electric energy on site, comprehensively utilizes offshore renewable energy, and provides a comprehensive offshore energy solution; Second, the present solution arranges the wave energy power generation device 2 on the outer peripheral side of the wind power generation device 3, and the wave energy power generation device 2 can block the waves and reduce the impact of the waves on the wind power generation device 3; Third, the present solution can control the connection relationship of the wave absorbing float 210 according to the size of the wave height, and avoid extreme waves or seawater from damaging the connection structure between the wave absorbing float 210 and the hydraulic cylinder 211 or the connection structure between the wave absorbing float 210 and the floating platform 1.

[0073] It can be seen that this solution effectively protects the wind power generation device 3 and the wave energy mechanism on the power generation platform, reduces the impact and damage of waves in extreme sea conditions on the power generation device, and improves the power generation stability and safety of the combined power generation platform.

[0074] As a possible example, Figures 7 to 9 As shown, this embodiment provides a possible implementation structure of a wave energy power generation device 2, which includes an energy storage and power generation mechanism 20 and a plurality of pendulum wave energy mechanisms 21. The pendulum wave energy mechanism 21 absorbs wave energy and converts the absorbed wave energy into potential energy of the energy storage and power generation mechanism 20 through the action of components, thereby realizing wave energy power generation.

[0075] In a specific embodiment, Figure 7 As shown, a possible implementation structure of the energy storage power generation mechanism 20 is further provided. The energy storage power generation mechanism 20 includes an accumulator 200 and a generator 201. The accumulator 200 and the generator are arranged in the floating platform 1. The accumulator 200 is connected to the hydraulic cylinder 211 of the pendulum wave energy mechanism 21. The accumulator 200 is also connected to the generator 201 in a transmission manner. When wave energy is generated, the wave energy is converted into hydraulic energy through the hydraulic rod and stored in the accumulator 200. The accumulator 200 then drives the generator 201 to generate electricity, thereby realizing the three-level energy conversion of wave energy-hydraulic energy-electric energy.

[0076] In a specific embodiment, Figure 8 and Fig. 9 As shown, a possible implementation structure of a pendulum wave energy mechanism 21 is further provided. The pendulum wave energy mechanism 21 includes a locking component 212, a wave absorbing float 210 and a hydraulic cylinder 211. The hydraulic cylinder 211 is arranged on the flipping track of the wave absorbing float 210. The locking component 212 includes a first connecting lock 2120 with a retractable end and a second connecting lock 2121 with a retractable end; the wave absorbing float 210 is provided with a locking platform buckle 2100, and the locking platform buckle 2100 is provided with a locking platform buckle 2100 for allowing the end of the first connecting lock 2120 or the end of the second connecting lock 2121 to move into or a lock hole that can be moved out; the first connecting lock 2120 is fixedly connected to the telescopic end of the hydraulic cylinder 211, the first connecting lock 2120 is located on the flipping trajectory of the wave-absorbing floating body 210, and the connection between the wave-absorbing floating body 210 and the hydraulic cylinder 211 is configured so that the end of the first connecting lock 2120 is stuck in the lock hole; the second connecting lock 2121 is fixedly connected to the floating platform 1, the second connecting lock 2121 is located on the flipping trajectory of the wave-absorbing floating body 210, and the connection between the wave-absorbing floating body 210 and the floating platform 1 is configured so that the end of the second connecting lock 2121 is stuck in the lock hole.

[0077] For example, Fig.15As shown, when the monitoring device 5 detects that the current real-time wave height is less than or equal to the preset wave height value, that is, it is in normal sea conditions, the end of the first connection lock 2120 is kept in the lock hole, so that the wave-absorbing float 210 is connected and fixed with the hydraulic cylinder 211, the wave-absorbing float 210 can be movably connected with the floating platform 1, and the wave-absorbing float 210 can swing up and down with the waves, thereby generating electricity; and when the monitoring device 5 detects that the current real-time wave height is greater than the preset wave height value, that is, in extreme sea conditions, the first connection lock 2120 is locked. The end portion is moved out of the lock hole to release the connection between the wave-absorbing float 210 and the hydraulic cylinder 211. When the wave-absorbing float 210 swings to the position of the second connection lock 2121 due to waves or human action, the end portion of the second connection lock 2121 extends into the lock hole to fix the wave-absorbing float 210 to the floating platform 1. The wave-absorbing float 210 cannot swing up and down with the waves, and extreme waves cannot cause damage to the connection between the wave-absorbing float 210 and the hydraulic cylinder 211 and the rotating portion of the wave-absorbing float 210 and the floating platform 1.

[0078] The real-time wave height is monitored by the wave height sensor 50, and the preset wave height value is set by technicians in this field according to their actual needs, and is usually the maximum normal value of the wave height.

[0079] For the specific connection structure of the first connection lock 2120 and the second connection lock 2121, as shown in FIG. Fig.10 and Fig.11 As shown, the first connection lock 2120 and the second connection lock 2121 are both electromagnetic locking structures; the electromagnetic locking structure includes a lock shell 2122, an electromagnetic member 2123, two springs 2124 and two lock cores 2125; the two side end walls of the lock shell 2122 are provided with core through holes for the lock core 2125 to pass through or pass through, and the lock shell 2122 is provided with an electromagnetic member 2123 and a spring 2124; the lock core 2125 is aligned with the core through hole, and the lock core 2125 is connected and fixed to the electromagnetic member 2123 by the spring 2124. It should be understood that the compression force of the spring 2124 The electromagnetic component 2123 is smaller than the attraction of the electromagnetic component 2123. Therefore, when the connecting lock needs to be extended, the electromagnetic component 2123 is powered off, the electromagnetic component 2123 and the lock core 2125 no longer maintain a magnetic connection relationship, and the spring 2124 pops out the lock core 2125 so that the lock core 2125 extends out from both ends of the lock shell 2122; when it needs to be retracted, the electromagnetic component 2123 is energized, and the lock core 2125 is retracted into the lock shell 2122 under the magnetic action of the electromagnetic component 2123 and the spring 2124 is compressed, so that the lock core 2125 does not extend out from both ends of the lock shell 2122.

[0080] It should be pointed out that if Fig.14As shown, the wave height sensor 50 for monitoring the wave height is connected to the control terminal 51 by signal, and the control terminal 51 is electrically connected to the electromagnetic component 2123. The electromagnetic component 2123 is powered on and off in a manner that the wave height sensor 50 that monitors the real-time wave height transmits a signal to the control terminal 51, and then the control terminal determines whether 51 controls the electromagnetic component 2123 to be powered on and off. The control terminal 51 can be an independent external device or can be built into the electromagnetic locking structure.

[0081] Furthermore, in order to improve the locking accuracy of the connected lock, the electromagnetic locking structure is also provided with a trigger sensor, which is used to detect the contact between the lock base buckle 2100 and the lock shell 2122. If it is detected that the lock base buckle 2100 is in contact with the lock shell 2122, the trigger sensor transmits a signal to the electromagnetic component 2123 switch to cut off the power to the electromagnetic component 2123, triggering the lock core 2125 inside the lock buckle to extend to both sides, so that the lock core 2125 is locked with the lock hole of the lock base buckle 2100.

[0082] The trigger sensor and the electromagnetic component 2123 can be in the same closed circuit to directly control the electromagnetic component 2123 to be powered on or off. Alternatively, the trigger sensor can transmit a signal to the control terminal 51 , and then the control terminal 51 can control the electromagnetic component 2123 to be powered on or off.

[0083] It should be noted that, under extreme sea conditions, if the wave-absorbing buoy 210 is in the seawater, the seawater will continue to impact the wave-absorbing buoy 210. Therefore, in order to reduce the impact of seawater on the wave-absorbing buoy 210, when the wave-absorbing buoy 210 is connected and fixed to the floating platform 1, the floating end of the wave-absorbing buoy 210 is located above the floating platform 1. When in use, after the wave-absorbing buoy 210 and the hydraulic cylinder 211 are unlocked, the wave-absorbing buoy 210 is flipped upward by human or wave action until it is connected and fixed to the floating platform 1. At this time, the floating end of the wave-absorbing buoy 210 is located above the floating platform 1, that is, the wave-absorbing buoy 210 forms a certain angle with the sea level, and most of the structure of the wave-absorbing buoy 210 is above the seawater, which reduces the impact of seawater on the wave-absorbing buoy 210.

[0084] Furthermore, in order to reduce the impact of seawater on the wave-absorbing float 210, when the wave-absorbing float 210 is connected and fixed to the floating platform 1, the floating end of the wave-absorbing float 210 is located on the inner side of the edge of the floating platform 1. When seawater contacts it, it first contacts the edge of the floating platform 1 instead of the wave-absorbing float 210, which further reduces the impact of seawater on the wave-absorbing float 210.

[0085] Specifically, the wave-absorbing float 210 is flipped and connected to the floating platform 1 through the fixed shaft 110, and the upper and lower surfaces of the wave-absorbing float 210 are provided with platform locking buckles 2100; the first connecting lock 2120 is located below the fixed shaft 110, and the second connecting lock 2121 is located above the fixed shaft 110, and the second connecting lock 2121 is located on the inner side of the fixed shaft 110, that is, when the second connecting lock 2121 is connected and fixed with the platform locking buckle 2100, the floating end of the wave-absorbing float 210 is located above the floating platform 1 and on the inner side of the edge of the floating platform 1. During use, when the wave-absorbing float 210 is fixedly connected to the floating platform 1, the wave-absorbing float 210 is located on the inner side of the edge of the floating platform 1 as a whole, which effectively reduces the impact of seawater on the wave-absorbing float 210.

[0086] Regarding the specific connection structure between the wave absorbing floating body 210 and the floating platform 1, as shown in FIG. Fig. 9 As shown, a fixed shaft 110 is installed on the floating platform 1, and the absorbing float 210 is rotatably installed on the fixed shaft 110. Positioning members are also provided on both sides of the absorbing float 210, and the positioning members are connected and fixed to the fixed shaft 110. When in use, the absorbing float 210 will only rotate around the axis and will not undergo horizontal displacement, thereby ensuring that the absorbing float 210 can be connected to the first connecting lock 2120 or the second connecting lock 2121 after being turned upside down.

[0087] Furthermore, in order to improve maintainability, the pendulum wave energy mechanism 21 is modularly designed, and the pendulum wave energy mechanism 21 as a whole can be detachably connected to the floating platform 1. This modular design simplifies the maintenance and replacement of the equipment and reduces the operation and maintenance costs.

[0088] As a possible example, Fig.12As shown, this embodiment provides a possible implementation structure of a wind power generation device 3. The wind power generation device 3 is installed on a floating platform 1. The wind power generation device 3 includes three blades 30, a nacelle 31, a hub 32 and a tower 33. The three blades 30 are connected to the main shaft in the nacelle 31 through the hub 32. The nacelle 31 is installed on the top of the tower 33. When wind blows through the blades 30, the blades 30 will capture wind energy and start to rotate. The hub 32 transfers the power received by the blades 30 to the main shaft. The main shaft transfers the rotational motion of the blades 30 to the gear box in the nacelle 31 (usually integrated in the nacelle 31). The gear box increases the rotation speed to meet the input requirements of the generator. The rotational power after the speed increase is transferred to the generator through the main shaft to generate electricity. The generated AC power usually needs to be stepped up by a transformer to meet the needs of long-distance power transmission. The nacelle 31 contains It contains a rectifier to convert AC power into DC power, and then converts it back into AC power compatible with the power grid through an inverter. The converted and regulated electric energy is transmitted to the ground substation or directly connected to the power grid through the cable in the tower 33. After adopting this setting method, wind energy and wave energy are used to generate electricity and electrolyze seawater to produce hydrogen, which can consume wave energy and wind power generation on site, effectively addressing the difficulties in grid connection of deep-sea floating power generation platforms and the efficient consumption of electric energy, and achieving zero carbon emissions throughout the process; at the same time, the hydrogen production scheme adopts advanced seawater direct hydrogen production technology, which realizes efficient electrolysis hydrogen production without desalination process, side reactions, and additional energy consumption, solves the problem of high carbon emissions in the hydrogen production process in the existing technology, and achieves zero carbon emissions throughout the process, which is expected to further reduce costs and improve efficiency. The platform design also includes hydrogen storage and energy management systems to effectively manage energy flow.

[0089] As a possible example, Fig.13As shown, this embodiment provides a possible implementation structure of a hydrogen production device 4, which is installed on a floating platform 1. The hydrogen production device 4 includes a seawater extraction and water electrolysis hydrogen production mechanism 40, a separation and purification mechanism 41, a hydrogen storage tank 42 and an energy storage mechanism 43; the seawater extraction and water electrolysis hydrogen production mechanism 40 is connected to the separation and purification mechanism 41; the separation and purification mechanism 41 is connected to the hydrogen storage tank 42; the energy storage mechanism 43 is electrically connected to the seawater extraction and water electrolysis hydrogen production mechanism 40 and the separation and purification mechanism 41, and the energy storage mechanism 43 is used to store the electric energy converted by the wave power generation device 2 and the wind power generation device 3, which is used for the entire hydrogen production device 4 is powered. When hydrogen production is needed, seawater is introduced into the electrolytic cell through the seawater extraction and water electrolysis hydrogen production device 4, and the seawater will be decomposed into hydrogen and oxygen through the electrolysis process; during the electrolysis process, the anode produces oxygen and the cathode produces hydrogen; the produced hydrogen and oxygen will enter the separation and purification device, and the gas-liquid separator in the separation and purification device will separate the gas from the liquid, and then the residual alkali solution and other impurities will be further removed through the scrubber to ensure the purity of the hydrogen; the purified hydrogen will be transported to the hydrogen storage tank 42 for storage; the hydrogen storage tank 42 needs to have sufficient capacity and good sealing performance to ensure the safe storage of hydrogen.

[0090] As a possible example, Fig.15 As shown, this embodiment provides a possible implementation structure of a monitoring device 5, which includes a wave sensor for monitoring real-time sea wave height, a wind speed sensor for monitoring ambient wind speed, an angle sensor for monitoring the angle of the blade 30, a temperature sensor for monitoring the temperature of the generator, an oil pressure sensor for monitoring the oil pressure of the hydraulic cylinder 211, and a control terminal 51. The control terminal 51 is connected to the wave sensor, the wind speed sensor, the angle sensor, the temperature sensor, the oil pressure sensor, and the trigger sensor signal. The control terminal 51 is electrically connected to the generator and the electromagnetic component 2123. The control terminal 51 can automatically adjust the pitch angle of the blade 30, the working state of the generator, and the power-on and power-off state of the electromagnetic component 2123 according to the monitored data, and the control terminal 51 can be used for predictive maintenance. By analyzing the historical and real-time data of the wind turbine, potential faults and maintenance requirements are predicted, thereby reducing downtime and improving system reliability. The entire wind turbine process is automated, but regular manual inspection and maintenance are also required to ensure the long-term stable operation of the system. In addition, the efficiency and safety of the wind turbine largely depend on the accuracy and response speed of the intelligent monitoring system.

[0091] As a possible example, Figures 1 to 6As shown, this embodiment provides a possible implementation structure of a floating platform 1, the floating platform 1 includes a floating foundation 10, a floating protection body 11 and a plurality of flexible cables 12; the floating foundation 10 is provided with a wind power generation device 3 and a hydrogen production device 4; the floating protection body 11 is provided with a swing type wave energy mechanism 21; the outer peripheral side of the floating foundation 10 is provided with a floating protection body 11 and a plurality of flexible cables 12, and the floating foundation 10 and the floating protection body 11 are connected and fixed by the tensioned flexible cables 12. After adopting this setting mode, there are the following advantages: first, the floating protection body 11 can cooperate with the wave energy generation device 2 to play a role The role of the floating breakwater is to reduce the direct impact of waves on the floating platform 1 to a certain extent, thereby further improving the stability of the platform; secondly, the flexible connection design between the two enables the floating platform 1 to have better impact resistance when facing the marine environment, and can effectively resist the impact of waves and floating objects; thirdly, the floating nature of the semi-submersible foundation structure formed by this scheme is more suitable for the deep sea, adapts to the deep sea environment, and can develop the rich wind and wave energy resources in the deep sea, expanding the application scenarios, and breaking the technical defects of the existing technology that fixed wind turbines are not suitable for deep sea areas with a water depth of more than 60 meters.

[0092] For the connection structure between the floating foundation 10 and the floating protection body 11, Figure 4 As shown, both the floating foundation 10 and the floating protection body 11 are triangular structures; at least three flexible cables 12 are connected and fixed between the corners of each floating foundation 10 and the corners of the adjacent floating protection body 11. When in use, the triangular structure provides sufficient strength for the platform, and the inner side of the vertex of each floating protection body 11 is connected and tensioned with the outer side of the floating foundation 10 through three flexible cables 12, which can protect the floating wind turbine foundation platform to a certain extent and prevent the floating wind turbine foundation platform from being damaged by impact of floating objects at sea.

[0093] It should be pointed out that the types of the flexible rope 12 include but are not limited to steel wire ropes, chains and anchor chains, that is, any type with high strength and corrosion resistance can be selected as the flexible rope 12.

[0094] Further, such as Figure 4 As shown, in order to improve the power generation efficiency of the pendulum wave energy mechanism 21, the pendulum wave energy mechanism 21 is arranged on the outside of the floating protection body 11. When there are waves, the waves first contact with the pendulum wave energy mechanism 21, and the pendulum wave energy mechanism 21 can fully utilize the wave energy of the waves. Then the waves contact with the floating protection body 11 again, and the waves are further dissipated by the floating protection body 11. Finally, the wave energy reaching the floating foundation 10 is small, and the impact on the wind power generation device 3 on the floating foundation 10 is small.

[0095] In a specific embodiment, Figure 5As shown, a possible implementation structure of the floating foundation 10 is further provided, and the floating foundation 10 includes at least three columns 100 and a truss structure 101; the wind turbine 3 is installed on one of the columns 100, and the hydrogen production device 4 is installed on the remaining columns 100, and the adjacent columns 100 are connected and fixed by the truss structure 101 to form a hollow floating foundation 10. After adopting this arrangement, the equilateral triangle structure formed by the three columns 100 adopts a hollow design. From a top view, the support of the truss structure 101 forms the three sides of an equilateral triangle, and the three columns 100 are located at the three vertices of the equilateral triangle; this truss structure 101 not only provides sufficient strength for installing the wind turbine 3 and the hydrogen production device 4, but also realizes a lightweight design, saves material consumption, and reduces costs and increases efficiency.

[0096] Specifically, along the direction from the top to the bottom of the column 100, the column 100 adopts a variable cross-section design. The upper part of the column 100 is a cylinder with a larger diameter, and the lower part of the column 100 is a cylinder with a smaller diameter. The two are transitioned by a truncated cone to form an inverted cone structure with a larger upper part and a smaller lower part, which effectively reduces the use of steel, while improving the stability and movement performance of the platform, making the platform economically feasible for large-scale applications in deep-sea areas.

[0097] Furthermore, in order to enhance the stability of the platform, the interior of the column 100 is hollow in design and has a built-in ballast water system. The system can intelligently adjust the ballast water level in the column 100 according to the sea conditions, and control the rise and fall of the center of gravity of the platform by adjusting the ballast water level to maintain a stable floating state and enhance the stability of the platform. In addition, the ballast water in the column 100 can also provide the required seawater for the water electrolysis hydrogen production system.

[0098] Furthermore, in order to enhance the stability of the platform, heave plates 102 are installed on the bottom sides of the three columns 100. This design can effectively reduce the heave movement of the platform and reduce the stress at the connection between the floating foundation and the wind turbine, thereby improving the overall stability, effectively reducing the movement amplitude of the floating wind turbine foundation platform in the ocean, enhancing the stability of the floating wind turbine foundation platform, and solving the structural stress problem caused by the high dynamic response of the existing floating platform 1 in the deep sea environment.

[0099] Embodiment 2

[0100] See also Fig.16Embodiment 2 of the present invention provides an offshore floating multi-energy complementary power generation platform, which is basically the same as embodiment 1, except that the locking component 212 is not a first connection lock 2120 with a retractable end and a second connection lock 2121 with a retractable end, but the locking component 212 is an electromagnetic member 2126; the connection between the wave-absorbing float 210 and the hydraulic cylinder 211 is not that the end of the first connection lock 2120 is clamped in the lock hole, and the connection between the wave-absorbing float 210 and the floating platform 1 is not that the end of the second connection lock 2121 is clamped in the lock hole, but the electromagnetic member 2126 can be selectively magnetically connected to the telescopic end of the hydraulic cylinder 211 or the floating platform 1.

[0101] As a possible example, Fig.16 As shown, the locking component 212 is an electromagnetic component 2126; the electromagnetic component 2126 is arranged on the wave-absorbing float 210, and the telescopic end of the hydraulic cylinder 211 and the floating platform 1 are arranged on the flipping track of the electromagnetic component 2126. The electromagnetic component 2126 can be selectively magnetically connected to the telescopic end of the hydraulic cylinder 211 or the floating platform 1.

[0102] When it is monitored that the real-time wave height is greater than the preset wave height value, the electromagnetic component 2126 is powered off and demagnetized, so that the wave-absorbing float 210 is separated from the hydraulic cylinder 211. When the wave-absorbing float 210 swings onto the floating platform 1 due to the waves or human action, the electromagnetic component 2126 is powered on and has magnetism, so that the wave-absorbing float 210 is connected and fixed to the floating platform 1, and the wave-absorbing float 210 cannot swing up and down with the waves; when it is monitored that the real-time wave height is less than or equal to the preset wave height value, the electromagnetic component 2126 keeps the wave-absorbing float 210 connected and fixed to the hydraulic cylinder 211, and the wave-absorbing float 210 can swing up and down with the waves, thereby generating electricity.

[0103] As can be seen from the above, in both the first and second embodiments, when the real-time wave height is greater than the preset wave height value, the locking component 212 is used to separate the wave-absorbing float 210 from the hydraulic cylinder 211, and to connect and fix the wave-absorbing float 210 to the floating platform 1; when the real-time wave height is less than or equal to the preset wave height value, the locking component 212 is used to flexibly connect the wave-absorbing float 210 to the floating platform 1, and to connect and fix the wave-absorbing float 210 to the hydraulic cylinder 211, thereby protecting the wave energy power generation device 2 under extreme sea conditions, reducing the impact and damage of waves in extreme sea conditions on the power generation device, and improving the power generation stability and safety of the combined power generation platform.

[0104] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

[0105] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. An offshore floating multi-energy complementary power generation platform, comprising a floating platform, and a wave power generation device and a wind power generation device arranged on the floating platform; It is characterized in that Also included is a monitoring device for monitoring real-time ocean wave height; The wave energy power generation device comprises an energy storage power generation mechanism and a plurality of pendulum wave energy mechanisms arranged on the outer peripheral side of the wind power generation device; The pendulum wave energy mechanism comprises a wave absorbing float, a hydraulic cylinder and a locking component; The wave-absorbing floating body can be installed on the floating platform in an upside-down manner; The hydraulic cylinder is connected and fixed to the floating platform, and the hydraulic cylinder is in communication with the energy storage and power generation mechanism; When the real-time sea wave height is greater than a preset wave height value, the locking component is used to separate the wave-absorbing floating body from the hydraulic cylinder and connect and fix the wave-absorbing floating body to the floating platform; When the real-time wave height is less than or equal to a preset wave height value, the locking component is used to movably connect the wave-absorbing buoy with the floating platform, and to connect and fix the wave-absorbing buoy with the hydraulic cylinder.

2. The offshore floating multi-energy complementary power generation platform according to claim 1 is characterized in that: When the wave-absorbing floating body is connected and fixed to the floating platform, the floating end of the wave-absorbing floating body is located above the floating platform.

3. The offshore floating multi-energy complementary power generation platform according to claim 2 is characterized in that: When the wave-absorbing floating body is connected and fixed to the floating platform, the floating end of the wave-absorbing floating body is located on the inner side of the edge of the floating platform.

4. The offshore floating multi-energy complementary power generation platform according to any one of claims 1 to 3, characterized in that: The locking component includes a first connecting lock with a retractable end and a second connecting lock with a retractable end; The wave-absorbing floating body is provided with a locking buckle, and the locking buckle is provided with a locking hole for allowing the end of the first connecting lock or the end of the second connecting lock to move in or out; The first connection lock is fixedly connected to the telescopic end of the hydraulic cylinder, the first connection lock is located on the flipping track of the wave-absorbing floating body, and the connection between the wave-absorbing floating body and the hydraulic cylinder is configured such that the end of the first connection lock is clamped in the lock hole; The second connection lock is fixedly connected to the floating platform, the second connection lock is located on the flipping track of the wave-absorbing floating body, and the connection between the wave-absorbing floating body and the floating platform is configured such that the end of the second connection lock is clamped in the lock hole.

5. The offshore floating multi-energy complementary power generation platform according to claim 4 is characterized in that: The wave-absorbing floating body is flip-connected with the floating platform through a fixed shaft; The upper surface and the lower surface of the wave-absorbing floating body are both provided with the locking buckle; The first connecting lock is located below the fixed shaft, the second connecting lock is located above the fixed shaft, and the second connecting lock is located on the inner side of the fixed shaft.

6. The offshore floating multi-energy complementary power generation platform according to claim 4 is characterized in that: The first connection lock and the second connection lock are both electromagnetic locking structures; The electromagnetic locking structure comprises a lock housing, an electromagnetic member, a spring and a lock core; The end wall of the lock housing is provided with a core through hole for the lock core to pass through or pass through, and the electromagnetic component and the spring are arranged in the lock housing; the lock core is aligned with the core through hole, and the lock core and the electromagnetic component are connected and fixed by the spring.

7. The offshore floating multi-energy complementary power generation platform according to any one of claims 1 to 3, characterized in that: The locking component is an electromagnetic component; The electromagnetic component is arranged on the wave-absorbing floating body, the telescopic end of the hydraulic cylinder and the floating platform are arranged on the turning track of the electromagnetic component, and the electromagnetic component is selectively magnetically connected with the telescopic end of the hydraulic cylinder or the floating platform.

8. The offshore floating multi-energy complementary power generation platform according to any one of claims 1 to 3, characterized in that: The floating platform is also provided with a hydrogen production device. The floating platform includes a floating foundation body, a floating protection body and a plurality of flexible cables; The floating foundation is provided with the wind power generation device and the hydrogen production device; The floating protection body is provided with the pendulum wave energy mechanism; The floating protection body and a plurality of the flexible cables are provided on the outer peripheral side of the floating foundation body, and the floating foundation body and the floating protection body are connected and fixed by the tensioned flexible cables.

9. The offshore floating multi-energy complementary power generation platform according to claim 8, characterized in that: The pendulum wave energy mechanism is arranged on the outer side of the floating protection body.

10. The offshore floating multi-energy complementary power generation platform according to claim 8, characterized in that: The floating foundation body and the floating protection body are both triangular structures; At least three flexible cables are connected and fixed between a corner of each floating foundation body and a corner of an adjacent floating protection body.

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