Floating type rotating and swinging ocean current power generation device

Abstract

The invention discloses a floating type rotating and swinging ocean current power generation device, and belongs to the technical field of ocean current power generation devices. Comprising a submerging cabin, a hook lock, a rotary swing vibrator, a rotary swing guide rod, a vortex-induced transmission device, a central transmission device and an ocean current direction detection system. The device can float on the sea surface or an ocean current area, so that the device is not limited by a fixed foundation structure and can more flexibly cope with changes of the ocean current direction and the flow speed, the swing array connecting vibrators can be correspondingly adjusted according to the changes of the ocean current, the position of the power generation device is optimized, and the power generation device always captures ocean current kinetic energy at the optimal angle; therefore, the power generation efficiency is maximized.

Description

Technical Field

[0001] This application belongs to the technical field of ocean current power generation devices, and specifically relates to a floating swing ocean current power generation device. Background Art

[0002] Existing fixed ocean current power generation devices mainly rely on firmly installing the equipment on the seabed or sea floor and using the kinetic energy of ocean currents to drive the power generation equipment for power conversion. The most significant drawback of fixed ocean current power generation devices is their lack of adaptability and inability to flexibly adjust according to changes in ocean current direction. Since the structure of the fixed device is fixed to the sea floor, it can only operate efficiently under specific ocean current directions and flow velocity conditions, while ocean current directions and intensities vary dynamically over time and space. When the ocean current changes, the power generation efficiency of the fixed device will decrease significantly, which limits its energy conversion efficiency in the variable ocean environment.

[0003] Secondly, the installation and maintenance costs of fixed devices are relatively high in deep sea or complex sea conditions. In deep sea areas, installation requires the use of large construction equipment, and due to the variability of ocean currents and seabed conditions, the installation process is both complex and expensive. In addition, once the equipment fails, the difficulty of repair and maintenance also increases significantly, especially in areas far from the shore, which increases the operating costs and risks.

[0004] In addition, fixed devices may have an adverse impact on the marine ecosystem. The equipment is fixed to the seabed, occupying a large area of the sea floor, which may affect the habitat environment of benthic organisms and even change the structure and function of the seabed ecosystem.

[0005] In view of these drawbacks, this application proposes a floating swing ocean current power generation device to solve the above problems. Summary of the Invention

[0006] This application provides a floating swing ocean current power generation device, aiming to efficiently utilize ocean current energy for power generation while overcoming the drawbacks of existing fixed ocean current power generation devices. This device has the advantages of strong flexibility, high power generation efficiency, convenient installation and maintenance, and little impact on the marine ecosystem, and is particularly suitable for energy development in deep sea or complex ocean current environments.

[0007] This application provides a floating swing ocean current power generation device, and the technical solution adopted is as follows, including: A submersible floating machine cabin, which has a stainless steel metal shell structure and is internally provided with an annular cavity, a battery pack, and an electric air pump. The annular cavity realizes water injection or exhaust through an upper valve and a lower valve; A hook lock, which is arranged on the side of the submersible floating machine cabin and is connected to an iron bucket through a hook rope; Swing oscillators, with at least two arranged along the water flow direction, the top is fixed on an oscillator mounting plate, and the bottom is connected and fixed through an oscillator locking plate; The swing guide rods, with a quantity of 2 - 4, are arranged on the upper part of the oscillator mounting plate, and their upper parts are connected to the swing plate; The vortex-induced transmission device is connected to the oscillator mounting plate at the bottom and is connected with a central transmission device at the upper part, and is used for converting the reciprocating swing of the swing oscillator into a unidirectional continuous rotational motion; The central transmission device includes a second waterproof protective shell, a central transmission shaft and a generator. The central transmission shaft and the generator are arranged inside the second waterproof protective shell, and the output ends of the central transmission shaft and the generator are rotationally connected; The ocean current direction detection system is used for controlling the rotation angle of the swing oscillator according to the ocean current direction.

[0008] Further, the hook locks are symmetrically distributed at three places and are connected to the iron bucket through corrosion-resistant hook ropes. The iron bucket is of a solid metal structure.

[0009] Further, the vortex-induced transmission device includes a waterproof protective shell, a swing plate, a sun gear, a sun gear shaft, a planetary gear, a ratchet one, a ratchet two, a transmission gear, a pawl one, a pawl two and a central transmission shaft. The swing plate, the sun gear, the sun gear shaft, the planetary gear, the ratchet one, the ratchet two, the transmission gear, the pawl one, the pawl two and the central transmission shaft are all arranged inside the waterproof protective shell. An annular tooth ring is arranged inside the swing plate. The number of planetary gears is multiple, and they are all meshed with the annular tooth ring inside the swing plate; the sun gear is located in the middle of the multiple planetary gears and is meshed with the planetary gears; a transmission disc is fixedly installed at the bottom of the ratchet one, and the sun gear shaft is fixed at the central part of the transmission disc at the bottom of the ratchet one to control the rotation of the ratchet one; the pawl one and the pawl two are fixedly installed on the central transmission shaft, and a transmission gear is jointly meshed between the ratchet one and the ratchet two.

[0010] Further, annular tooth rings are arranged inside both the ratchet one and the ratchet two. The pawl one will be meshed with the ratchet one when the ratchet one rotates forward, and when the ratchet one rotates backward, the pawl one will not be meshed with the ratchet one. The pawl two will be meshed with the ratchet two when the ratchet two rotates forward, and when the ratchet two rotates backward, the pawl two will not be meshed with the ratchet two.

[0011] Further, the buoyancy adjustment of the submersible and floating nacelle is realized in the following way: when it is necessary to dive, open the upper valve and the lower valve, and seawater is injected into the annular cavity; when it is necessary to float, close the upper valve, and inject gas into the annular cavity through an electric air pump to discharge the seawater.

[0012] Further, it further includes a spring layer, which is annularly arranged around the swing guide rods and provides a restoring force for the reciprocating motion.

[0013] Further, the ocean current direction detection system includes a real-time feedback control module. The driving motor adjusts the azimuth angle of the oscillator mounting plate according to the multi-axis current meter data, so that the oscillator maintains the best angle of attack with the ocean current direction.

[0014] Further, the ocean current direction detection system includes a multi-axis current meter, an intensity detection sensor, and a driving motor provided on the submersible floating machine cabin. The multi-axis current meter, the intensity detection sensor, and the driving motor are all electrically connected to the control system. The multi-axis current meter and the intensity detection sensor can sense the direction, speed, and intensity of the ocean current in real time and transmit the data to the control system. The output end of the driving motor is connected to the oscillator mounting plate and is used to control the rotation angle of the oscillator mounting plate according to the ocean current direction after the control system obtains data from the multi-axis current meter and the intensity detection sensor.

[0015] Advantages of the present application: 1. The power generation device of the present application adopts a floating design instead of being fixed on the seabed. This design enables the device to float on the sea surface or in the ocean current area, thus being unrestricted by the fixed basic structure and being able to more flexibly respond to changes in the ocean current direction and velocity, improving the power generation efficiency.

[0016] 2. The device of the present application has the ability to automatically adjust the position of the pendulum array according to the ocean current direction and intensity. The pendulum array connecting the oscillator can be adjusted accordingly according to the changes in the ocean current, optimizing the position of the power generation device and enabling it to always capture the ocean current kinetic energy at the best angle, thereby maximizing the power generation efficiency.

[0017] 3. The present application uses three hook locks to fix the device on the underwater iron barrel to ensure that the device will not be carried away by the ocean current. The hook lock connection method provides an effective floating device fixing solution, which can ensure the stable operation of the power generation device without relying on the traditional seabed fixed foundation.

[0018] 4. The device of the present application adjusts the buoyancy through the upper submersible floating machine cabin, enabling the power generation device to freely sink to the seabed or float on the sea surface according to the changes in the ocean current. This buoyancy adjustment mechanism enables the device to adapt to different ocean current depths and sea surface conditions and optimize the operating conditions.

[0019] 5. Through the buoyancy adjustment of the submersible floating machine cabin and the adjustment of the pendulum array position, the present application can adapt to different ocean current conditions in real time, enabling the device to maintain high-efficiency power generation ability in different sea areas and ocean current conditions, and solving the problem of low efficiency of fixed devices in changing ocean current environments.

[0020] 6. The device of the present application adopts a modular design, which is convenient for on-site installation and maintenance. Due to its floating structure and hook lock fixing method, it can be transported and adjusted more conveniently without the need for the installation of complex deep-sea fixed devices. This greatly reduces the installation cost and maintenance difficulty of the equipment and has stronger adaptability. Brief Description of the Drawings

[0021] For ease of explanation, the present application will be described in detail by the following specific embodiments and the accompanying drawings.

[0022] Figure 1 is the structural diagram of the floating swing ocean current power generation device of the present application; Figure 2 is the sectional view of the floating swing ocean current power generation device of the present application and the internal gear structure diagram; Figure 3 is the floating-up and diving diagram of the floating swing ocean current power generation device of the present application; Figure 4 is the incoming flow direction change diagram of the floating swing ocean current power generation device of the present application.

[0023] In the figures: 1. Upper valve; 2. Submersible and floating engine room; 3. Hook lock; 4. Lower valve; 5. Hook rope; 6. Central drive device; 7. Vortex-induced drive device; 8. Oscillator mounting plate; 9. Swing oscillator; 10. Oscillator upper lock plate; 11. Iron bucket; 12. Annular cavity; 13. Swing plate; 14. Swing guide rod; 15. Spring layer; 16. Generator; 17. Planetary gear; 18. Ratchet one; 19. Ratchet two; 20. Transmission gear; 21. Pawl one; 22. Pawl two; 23. Central transmission shaft; 24. Sun gear; 25. Sun gear shaft; 26. Drive disc. Detailed Embodiments

[0024] The following are specific embodiments of the present application and in combination with the accompanying drawings, the technical solutions of the present application will be further described, but the present application is not limited to these embodiments; in the following description, providing specific details such as specific configurations and components is only to help a comprehensive understanding of the embodiments of the present application. Therefore, those skilled in the art should clearly understand that various changes and modifications can be made to the embodiments described here without departing from the scope and spirit of the present application. In addition, descriptions of known functions and structures are omitted for clarity and conciseness.

[0025] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0026] As Figures 1-4 shown in a specific embodiment of a floating swing ocean current power generation device, including: Submersible and floating engine room 2, the submersible and floating engine room 2 is of a stainless steel metal shell structure, and is internally provided with an annular cavity 12, a battery pack (not shown in the figures) and an electric air pump (not shown in the figures), and the annular cavity 12 realizes water injection or exhaust through the upper valve 1 and the lower valve 4; Specifically, the battery pack and the electric air pump are used for exhausting air or draining water for injection. The upper valve 1 is used for exhausting air, and the lower valve 4 is used for water injection or drainage.

[0027] Specifically, controlling the opening and closing of the upper valve 1 and the lower valve 4 of the submersible floating cabin 2 can achieve the floating and submerging of the device. This process is powered by the electric air pump and the battery pack in the central part.

[0028] The hook lock 3 is arranged on the side of the submersible floating cabin 2 and is connected to the iron bucket 11 through the hook rope 5; At least two pendulum oscillators 9 are arranged along the water flow direction. The top is fixed on the oscillator mounting plate 8, and the bottom is connected and fixed through the oscillator locking plate 10; There are 2 - 4 pendulum guiding rods 14, which are arranged above the oscillator mounting plate 8, and the upper part thereof is connected to the pendulum plate 13; The vortex-induced drive device 7 is connected to the oscillator mounting plate 8 at the bottom and is connected with a central drive device 6 at the upper part, and is used for converting the reciprocating swing of the pendulum oscillator 9 into a unidirectional continuous rotational motion; The central drive device 6 includes a second waterproof protective shell, a central transmission shaft 23 and a generator 16. The central transmission shaft 23 and the generator 16 are arranged in the second waterproof protective shell, and the output ends of the central transmission shaft 23 and the generator 16 are rotationally connected; Specifically, in this embodiment, when the upper valve 1 and the lower valve 4 of the submersible floating cabin 2 are opened, seawater enters the annular cavity 12 of the submersible floating cabin 2 through the lower valve 4, and at the same time, gas is discharged through the upper valve 1. Due to the entry of seawater, the weight of the device increases, causing the device to sink to the seabed. The pendulum oscillator 9 swings under the action of the ocean current. The swinging of the pendulum oscillator 9 drives the pendulum plate 13 to perform reciprocating swings. Through the cooperation of the vortex-induced drive device 7 and the central drive device 6, the reciprocating swing motion is changed into a unidirectional continuous rotation, thereby promoting the generator 16 to generate electricity.

[0029] Specifically, a sea current direction detection system is provided, which is used to control the rotation angle of the pendulum oscillator 9 according to the sea current direction. The pendulum oscillator 9 group can be adjusted accordingly according to the change of the sea current, optimizing the position of the power generation device so that it always captures the ocean current kinetic energy at the best angle, thereby maximizing the power generation efficiency.

[0030] Specifically, through the intelligent buoyancy adjustment of the submersible floating cabin 2, the dynamic anti-offset of the anchoring system (hook lock 3, hook rope and iron bucket), the efficient energy capture of the pendulum oscillator 9 array, and the sea current direction adaptive control, the stable operation and efficient power generation of the device in the complex marine environment are realized. Each subsystem closely cooperates through sensor feedback and closed-loop control to ensure the optimal overall performance.

[0031] In other preferred embodiments, the hook lock 3 is symmetrically distributed at three places and is connected to the iron bucket 11 through a corrosion-resistant hook rope. The iron bucket 11 is a solid metal structure.

[0032] Specifically, the three hook locks 3 are symmetrically distributed at equal angles of 120°, forming a stable triangular structure, which can evenly distribute the impact force of the ocean current. When the direction of the ocean current suddenly changes, the three-point anchoring system dynamically adjusts through the tension of the hook rope 5, effectively suppressing the rotation of the device.

[0033] In other preferred embodiments, the vortex-induced drive device 7 includes a waterproof protective shell, a swing plate 13, a sun gear 24, a sun gear shaft 25, a planetary gear 17, a ratchet one 18, a ratchet two 19, a transmission gear 20, a pawl one 21, a pawl two 22, and a central drive shaft 23. The swing plate 13, the sun gear 24, the sun gear shaft 25, the planetary gear 17, the ratchet one 18, the ratchet two 19, the transmission gear 20, the pawl one 21, the pawl two 22, and the central drive shaft 23 are all arranged inside the waterproof protective shell. An annular gear ring is provided inside the swing plate 13. The number of the planetary gears 17 is multiple, and they are all meshed with the annular gear ring inside the swing plate 13. The sun gear 24 is located in the middle of the multiple planetary gears 17 and is meshed with the planetary gears 17. A transmission disk 26 is fixedly installed at the bottom of the ratchet one 18, and the sun gear shaft 25 is fixed at the central part of the transmission disk 26 at the bottom of the ratchet one 18 to control the rotation of the ratchet one 18. The top of the central drive shaft 23 is connected to the generator 16, and the bottom is not connected to the top of the transmission disk 26. The pawl one 21 and the pawl two 22 are fixedly installed on the central drive shaft 23, and the transmission gear 20 is meshed between the ratchet one 18 and the ratchet two 19.

[0034] Specifically, annular gear rings are provided inside both the ratchet one 18 and the ratchet two 19. The pawl one 21 will be meshed with the ratchet one 18 when the ratchet one 18 rotates forward, and the pawl one 21 will not be meshed with the ratchet one 18 when the ratchet one 18 rotates backward. The pawl two 22 will be meshed with the ratchet two 19 when the ratchet two 19 rotates forward, and the pawl two 22 will not be meshed with the ratchet two 19 when the ratchet two 19 rotates backward.

[0035] Specifically, toothed rings are provided on the upper part of the ratchet one 18 and the lower part of the ratchet two 19 to mesh with the transmission gear 20.

[0036] Specifically, the swing oscillator 9 arranged along the water flow drives the swing plate 13 with an annular gear ring to rotate through the swing guide rod 14.

[0037] When rotating forward, the internal annular gear ring of the swing plate 13 drives the planetary gear 17 to rotate. The planetary gear 17 drives the sun gear 24 to rotate. The rotation of the sun gear 24 drives the rotation of the sun gear shaft 25. The rotation of the sun gear shaft 25 drives the rotation of the transmission disc 26, thereby driving the first ratchet 18 to rotate forward. When the first ratchet 18 rotates forward, the transmission gear 20 transmits power to the second ratchet 19 in a reverse rotation. The first pawl 21 meshes with the first ratchet 18. The forward rotation of the first ratchet 18 drives the first pawl 21 to drive the central transmission shaft 23 to rotate. At this time, the second ratchet 19 rotates in the reverse direction, and at this time, the second pawl 22 and the second ratchet 19 cannot mesh.

[0038] When rotating in the reverse direction, the first ratchet 18 rotates in the reverse direction. The transmission gear 24 transmits power to the second ratchet 19 in a forward rotation. When the first ratchet 18 rotates in the reverse direction, the first pawl 21 cannot mesh with it. The first pawl 21 continuously rebounds and cannot transmit power to the central transmission shaft 23. However, the second ratchet 19 rotates forward, and the second pawl 22 catches the second ratchet 19. The forward rotation of the second ratchet 19 drives the second pawl 22 to rotate and drive the central transmission shaft 23 to rotate.

[0039] Specifically, as Figure 3 shown, the buoyancy adjustment of the submersible floating cabin 2 is achieved through the following method: When it is necessary to dive, open the upper valve 1 and the lower valve 4, and seawater is injected into the annular cavity 12; when it is necessary to float, close the upper valve 1, and inject gas into the annular cavity 12 through the electric air pump to discharge seawater.

[0040] In other preferred embodiments, a spring layer 15 is further included, which is annularly arranged around the swing guide rod 14, provides a restoring force for the reciprocating motion, and is used to provide an elastic reset torque when the swing oscillator 9 swings to the limit position, restricting the vibration amplitude of the swing oscillator 9.

[0041] In other preferred embodiments, the sea current direction detection system includes a real-time feedback control module (not shown in the figure). The drive motor adjusts the azimuth angle of the oscillator mounting plate according to the data of the multi-axis flowmeter, so that the oscillator maintains the best attack angle with the sea current direction.

[0042] Specifically, the sea current direction detection system includes a multi-axis flowmeter, an intensity detection sensor, and a drive motor provided on the submersible floating cabin 2. Among them, the multi-axis flowmeter, the intensity detection sensor, and the drive motor are all electrically connected to the control system. The multi-axis flowmeter and the intensity detection sensor can sense the direction, speed, and intensity of the sea current in real time, and transmit the data to the control system. The output end of the drive motor is connected to the oscillator mounting plate. The control system controls the rotation angle of the oscillator mounting plate according to the data obtained by the multi-axis flowmeter and the intensity detection sensor, and monitors the adjustment effect in real time to ensure that the swing oscillator always maintains the best position and maximizes the power generation efficiency.

[0043] Specifically, the overall device adopts a modular design, and all components are pre-installed in the factory and then towed afloat to the target sea area.

[0044] It should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0045] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] Those skilled in the art to which the present application pertains can make various modifications or supplements to the described specific embodiments or use similar ways to substitute, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A floating swing current power generation device, characterized in that: include: The submersible buoy cabin is a stainless steel metal shell structure, and an annular cavity, a battery pack and an electric air pump are arranged inside the annular cavity, and the annular cavity is filled with water or exhausted through an upper valve and a lower valve; A hook lock is arranged on the side of the submersible cabin and connected to the iron barrel through a hook rope; At least two oscillating vibrators are arranged along the water flow direction, the top of which is fixed on the vibrator mounting plate, and the bottom is connected and fixed through the vibrator locking plate; The number of the swing guide rods is 2-4, which are arranged on the upper part of the vibrator mounting plate, and the upper part of the swing guide rods is connected to the swing plate; The vortex-induced transmission device is connected to the vibrator mounting plate at the bottom and connected to the central transmission device at the top, which is used to convert the reciprocating swing of the pendulum vibrator into a unidirectional continuous rotational motion; The central transmission device comprises a second waterproof protective shell, a central transmission shaft and a generator, wherein the central transmission shaft and the generator are arranged in the second waterproof protective shell, and the central transmission shaft is rotationally connected to the output end of the generator; The ocean current direction detection system is used to control the rotation angle of the pendulum according to the ocean current direction.

2. A floating swing current power generation device according to claim 1, characterized in that: The hook locks are symmetrically distributed at three locations and connected to the iron barrel via corrosion-resistant hook ropes. The iron barrel is a solid metal structure.

3. A floating swing current power generation device according to claim 1, characterized in that: The vortex-induced transmission device includes a waterproof protective shell, a swing plate, a sun gear, a sun gear shaft, planetary gears, ratchet one, ratchet two, a transmission gear, pawl one, ratchet two and a central transmission shaft. The swing plate, sun gear, sun gear shaft, planetary gears, ratchet one, ratchet two, a transmission gear, pawl one, ratchet two and a central transmission shaft are all arranged inside the waterproof protective shell. An annular gear ring is provided inside the swing plate. There are multiple planetary gears, all of which are meshed with the annular gear ring inside the swing plate; the sun gear is located in the middle of multiple planetary gears and meshes with the planetary gears; a transmission plate is fixedly installed at the bottom of the ratchet one, and the sun gear shaft is fixed to the central part of the transmission plate at the bottom of the ratchet one to control the rotation of the ratchet one; the pawl one and the pawl two are fixedly installed on the central transmission shaft, and a transmission gear is meshed between the ratchet one and the ratchet two.

4. A floating swing current power generation device according to claim 1, characterized in that: Both ratchet wheel 1 and ratchet wheel 2 are provided with annular gear rings inside. Ratchet pawl 1 will mesh with ratchet wheel 1 when ratchet wheel 1 rotates forward, and will not mesh with ratchet wheel 1 when ratchet wheel 1 rotates reversely. Ratchet pawl 2 will mesh with ratchet wheel 2 when ratchet wheel 2 rotates forward, and will not mesh with ratchet wheel 2 when ratchet wheel 2 rotates reversely.

5. The floating swing current power generation device according to claim 1, characterized in that: The buoyancy adjustment of the submersible cabin is achieved in the following manner: when diving is required, the upper valve and the lower valve are opened to inject seawater into the annular cavity; when buoyancy is required, the upper valve is closed and gas is injected into the annular cavity through an electric air pump to discharge seawater.

6. A floating swing current power generation device according to claim 1, characterized in that: It also includes a spring layer, which is annularly arranged around the swing guide rod to provide restoring force for the reciprocating motion.

7. The floating swing current power generation device according to claim 1, characterized in that: The ocean current direction detection system comprises a real-time feedback control module, and a driving motor adjusts the azimuth angle of the vibrator mounting plate according to the multi-axis current meter data so as to keep the vibrator at an optimal angle of attack with the ocean current direction.

8. The floating swing current power generation device according to claim 1, characterized in that The ocean current direction detection system includes a multi-axis current meter, an intensity detection sensor and a drive motor arranged on the submersible cabin. The multi-axis current meter, the intensity detection sensor and the drive motor are all electrically connected to the control system. The multi-axis current meter and the intensity detection sensor can sense the direction, speed and intensity of the ocean current in real time and transmit the data to the control system. The output end of the drive motor is connected to the vibrator mounting disk, and is used to control the rotation angle of the vibrator mounting disk according to the direction of the ocean current after the control system obtains data from the multi-axis current meter and the intensity detection sensor.

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