Water droplet type wave energy power generation device and method

Abstract

The application relates to the technical field of wave power generation devices, in particular to a novel high-efficiency water-drop type wave power generation device and a power generation method. The gravity center offset ball can freely move in the empty layer, so that wave energy from all directions can be collected and converted into kinetic energy for the self-rotation movement, the float is driven to swing and swing is promoted, thereby high-efficiency power generation is realized, and the utilization rate of offshore wave energy is improved. The balance bar and the gravity center offset ball can continuously move no matter in what sea state, so that the float gradually swings regularly under the impact of disordered sea waves, swing is promoted, power generation is realized, and various sea states can be adapted. The coaxial design of the central rotor and the swash plate is adopted, when the float is slightly impacted by sea waves, the float rotates, drives the balance bar to move up and down, the gravity center of the float changes back and forth, thereby swing is promoted in turn, and the stable operation and power generation under weak sea waves are ensured.

Description

Technical Field

[0001] This invention relates to the field of wave energy power generation technology, specifically to a water droplet-shaped wave energy power generation device and power generation method. Background Technology

[0002] Earth is known as the "Blue Planet," with oceans covering the vast majority of its surface. This means that the oceans contain the majority of the Earth's energy, including new energy sources such as wind, thermal, and wave energy. Among these, wave energy, as a clean energy source, is abundant in the ocean. Wave energy power generation is the process of collecting and utilizing the kinetic and potential energy generated by waves and converting it into electrical energy in various forms, showing great promise. However, existing wave energy power generation devices have the following shortcomings: 1. Existing wave energy generation devices utilize wave energy in a single way. On the ever-changing sea surface, sea conditions are constantly changing, which determines the randomness and uncertainty of wave propagation direction. The energy generated by random waves can cause buoys at sea to move with high degrees of freedom, dividing wave energy into many parts along various directions of motion. Traditional wave energy generation devices can only collect the energy of one type of motion, resulting in low energy utilization efficiency.

[0003] 2. Existing wave energy power generation devices are unstable or even stop generating electricity in weak wave conditions. The size and frequency of ocean waves vary, making it impossible for traditional wave energy power generation devices to operate stably and for energy to be converted smoothly. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a water droplet-shaped wave energy power generation device and power generation method that can more efficiently utilize the energy of ocean waves in all directions and generate electricity sustainably and stably, in order to overcome the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: I. A teardrop-shaped wave energy generation device This invention provides a water droplet-type wave energy power generation device, which mainly includes: a float outer shell 1, a float inner shell 2, a wave energy collection device, a pendulum power generation device, a swing buffer device, and a vertical wave energy utilization device. The float outer shell 1 is teardrop-shaped and has an inner float shell 2 inside; the wave energy collection device includes multiple shock-absorbing springs 3 evenly connected between the float outer shell 1 and the inner float shell 2; the pendulum power generation device includes a central pendulum 4 and multiple peripheral pendulums 5 located on the upper layer of the inner float shell 2; the oscillation buffer device includes a balance bar pulley mechanism located on the lower layer of the inner float shell 2; the vertical wave energy utilization device includes a center of gravity offset ball 14 located in the top empty layer of the float outer shell 1, and a center of gravity stabilizing ball 16 connected to the bottom of the float outer shell 1 by a chain 15.

[0006] Furthermore, the plurality of damping springs 3 are evenly distributed around the circumference of the inner shell 2 of the float, and the damping springs located in the long axis direction of the inner shell of the float have the smallest stiffness, while the damping springs located in the short axis direction of the inner shell of the float have the largest stiffness.

[0007] Furthermore, the central pendulum 4 is located in the middle of the upper layer of the inner shell 2 of the float, and a plurality of peripheral pendulums 5 are evenly arranged around the central pendulum 4, and the height and length of the central pendulum 4 are both greater than those of the peripheral pendulums 5.

[0008] Furthermore, the balance bar pulley mechanism includes a swashplate 6 that rotates coaxially with the central pendulum 4. The lower surface of the swashplate 6 is in contact with two plungers 11. The plungers 11 are slidably disposed in the inverted convex groove, and the bottoms of the two plungers 11 are respectively connected to the force buffer springs 10 on the two balance bars 7 through the fixed pulley group 9.

[0009] Furthermore, a plunger spring 12 is provided between the plunger 11 and the inverted groove.

[0010] Furthermore, the two balance bars 7 are symmetrically arranged on the front and rear sides of the swashplate 6 along the short axis of the inner shell of the float, and one end of each balance bar 7 is connected to the positioning shaft located in the middle of the swashplate 6, and the other end is connected to the weight bar 8.

[0011] Furthermore, the inner wall of the top empty layer of the float shell 1 is uniformly provided with multiple spring baffles 13 along the circumference, and the bottom surface of the top empty layer has an inward concave structure.

[0012] Furthermore, the float outer shell 1, the float inner shell 2, and the balance bar 7 are all made of rigid plastic.

[0013] Furthermore, the material density of the heavy iron rod 8 is greater than that of the balance rod 7, and the material density of the center of gravity offset ball 14 is greater than that of the float shell 1.

[0014] II. A Wave Energy Generation Method Based on the same inventive concept, the present invention also provides a wave energy power generation method, which, based on the teardrop-shaped wave energy power generation device described above, mainly includes the following steps: S1, Deployment process of power generation device: Deploy the power generation device to the preset water area, so that the outer shell of the float floats on the water surface and the center of gravity stabilizer ball sinks into the water; S2, Wave energy harvesting process: When waves hit the outer shell of the float, the horizontal wave energy causes the inner shell of the float to move circumferentially within the outer shell of the float, and drives the central pendulum and the peripheral pendulum to rotate. S3, Pendulum power generation process: The central pendulum and the peripheral pendulum rotate around the axis under the action of horizontal wave energy, and the rotational mechanical energy is converted into electrical energy through the energy conversion device; S4, Oscillating buffer process: The swashplate rotates coaxially with the central pendulum, driving the plunger to reciprocate in the inverted groove. The fixed pulley system drives the balance bar and the two end weight bars to swing up and down, causing the float's center of gravity to oscillate continuously. At the same time, the oscillation of the float's center of gravity in turn drives the central pendulum and the peripheral pendulum to rotate. S5, Vertical wave energy utilization process: A portion of the vertical wave energy is transmitted to the balance bar inside the float's inner shell through the shock-absorbing spring located on the short axis of the float's inner shell, causing the balance bar to swing up and down, and driving the central pendulum to rotate through the fixed pulley system and plunger; another portion of the vertical wave energy is transmitted to the center of gravity offset ball located in the top empty layer through the float's outer shell, causing the center of gravity offset ball to rotate around the center line of the float, and in conjunction with the action of the center of gravity stabilizing ball, the center of gravity of the float oscillates continuously, thereby driving the central pendulum and the peripheral pendulum to rotate.

[0015] Compared with the prior art, the present invention has the following main advantages: 1. This invention allows the center-of-gravity offset ball to move freely within the air layer, thereby collecting wave energy from all directions and converting it into kinetic energy for its own rotational motion. This, in turn, drives the float to swing, promoting the oscillation of the float and thus generating electricity efficiently, thereby improving the utilization rate of ocean wave energy. 2. The balance bar and center of gravity offset ball used in this invention can always move continuously regardless of the sea conditions, so that the float gradually swings in a regular manner under the impact of disordered waves, promotes the rotation of the pendulum to generate electricity, and thus can adapt to various sea conditions. 3. The central rotor and swashplate of the present invention adopt a coaxial design. When the float is subjected to slight wave impact, the float rotates, which drives the balance bar to move up and down, causing the center of gravity of the float to change back and forth, thereby promoting the rotation of the pendulum and ensuring that it can continue to operate stably to generate electricity even under weak waves. 4. The present invention provides a shock-absorbing spring between the float outer shell and the float inner shell, and a spring baffle is provided around the upper hollow layer of the float outer shell, which can effectively reduce the strong impact of kinetic energy on the float as a whole, thereby extending the life of the float. Attached Figure Description

[0016] Figure 1 This is an overall schematic diagram of the water droplet-shaped wave energy generation device in an embodiment of the present invention; Figure 2 This is a flowchart of the wave energy generation method in an embodiment of the present invention.

[0017] In the diagram: 1-Float outer shell, 2-Float inner shell, 3-Shock-absorbing spring, 4-Central pendulum, 5-Circumferential pendulum, 6-Swashplate, 7-Stabilizer bar, 8-Heavy iron bar, 9-Fixed pulley system, 10-Force buffer spring, 11-Plunger, 12-Plunger spring, 13-Spring baffle, 14-Center of gravity offset ball, 15-Chain rope, 16-Center of gravity stabilizing ball. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0019] It should be noted that, depending on the implementation needs, the various steps / components described in this application can be broken down into more steps / components, or two or more steps / components or parts of the operation of steps / components can be combined into new steps / components to achieve the purpose of this invention.

[0020] Example 1: This example provides a teardrop-shaped wave energy power generation device, which can more comprehensively utilize the energy of ocean waves in all directions and generate electricity continuously and stably.

[0021] like Figure 1 As shown, the power generation device mainly includes: float outer shell 1, float inner shell 2, shock-absorbing spring 3, central pendulum 4, peripheral pendulum 5, swashplate 6, balance bar 7, heavy iron bar 8, fixed pulley block 9, force buffer spring 10, plunger 11, plunger spring 12, spring baffle 13, center of gravity offset ball 14, chain rope 15, and center of gravity stabilizing ball 16.

[0022] Specifically, the float is teardrop-shaped, with the outer shell consisting of three layers: upper, middle, and lower. The inner shell is mostly made of rigid plastic, ensuring sufficient rigidity while allowing the float to float on the water surface. The outer shell 1 and the inner shell 2 are connected by evenly distributed shock-absorbing springs 3 to protect the inner shell components under the impact of high waves. Furthermore, the stiffness of the shock-absorbing springs 3 gradually increases from the long half-axis direction of the inner shell to the oblique direction and then to the short half-axis direction of the float. When waves impact the outer shell 1, most of the vertical energy is collected by the stiffer shock-absorbing springs 3 and gradually transferred to the balance bar 7 inside the inner shell 2, causing it to swing up and down. The horizontal energy causes the inner shell 2 to move circumferentially within the outer shell 1, promoting better rotation of the pendulum.

[0023] Furthermore, in this embodiment of the invention, the pendulum power generation device is connected to the energy conversion device, which can convert the kinetic energy of the pendulum motion into electrical energy for storage. The height and length of the central pendulum 4 are both greater than those of the peripheral pendulum 5, so that the central float 4 can obtain more energy during the oscillation of the float. This part of the energy will be transmitted to the swashplate 6 through the rotating shaft.

[0024] Specifically, the swash plate 6 can rotate coaxially with the central rotor 4. The lower part of the swash plate 6 is in contact with the plunger 11, which is inserted into the inverted "convex" groove. The lower end of the plunger 11 is connected to the force buffer spring 10 on the balance bar through the fixed pulley group 9. After receiving the energy transmitted from the central rotor 4, the swash plate 6 rotates, driving the plunger 11 to reciprocate in the groove. There is a plunger spring 12 in the movement space, which can reset the plunger 11. The initial position of the plunger spring 12 is such that the plunger 11 is at the top.

[0025] Specifically, the balance bars 7 are used in pairs, located on the front and rear sides of the swashplate 6 respectively. The two ends of the balance bars 7 are connected to the weight bars 8. The middle of the balance bars 7 is oscillating around the axis via a positioning shaft. The balance bars 7 are made of rigid plastic material, while the weight bars 8 are made of a dense and relatively soft material. After receiving energy from the central pendulum 4 through the fixed pulley system 9, the weight bars 8 and the balance bars 7 oscillate up and down around the fixed axis, causing the center of gravity of the float to move continuously. The oscillation of the float, in turn, promotes the rotation of the central pendulum 4 and the peripheral pendulum 5. At the same time, the two ends of the balance bars are connected to the force buffer springs 10, which have the function of temporarily storing energy. Under the impact of waves, when the float tilts to one end and drives the pendulum to rotate, the movement of the balance bars 7 is delayed and tilts to the other end, causing the float to swing back.

[0026] In addition, there is an empty layer on the upper part of the float shell 1, and inside the empty layer is a freely movable center of gravity offset ball 14. The bottom of the float is connected to the center of gravity stabilizing ball 16 by a chain 15. The center of gravity offset ball 14 is made of a high-density material. Since the vertical wave energy pendulum power generation device cannot be fully utilized, in this invention, after the float receives vertical wave energy, the center of gravity offset ball 14 begins to move in the empty layer. Due to the concave design at the bottom of the empty layer, the center of gravity offset ball 14 rotates around the center line of the float, causing the center of gravity of the float to move back and forth again. Under the force of the center of gravity stabilizing ball 16, the float is promoted to return to a horizontal position, thereby promoting the rotation of the pendulum and making more comprehensive use of wave energy. In addition, in order to prevent the impact of the center of gravity offset ball 14 on the float shell, spring baffles 13 are arranged around the empty layer.

[0027] Example 2: This example provides a teardrop-shaped wave energy generation device. A certain space is left between the outer shell and the inner shell of the float, where shock-absorbing springs are evenly installed. The inner shell of the float is divided into upper and lower layers. The upper layer houses the pendulum power generation device, and the top of the lower layer houses the swashplate. The lower surface of the swashplate is in contact with the plunger. A plunger spring is installed in the space between the plunger and the inverted "convex" groove. The balance bars are used in pairs, located on the front and rear sides of the swashplate, with heavy iron rods installed at their two ends. The lower end of the plunger is connected to the force buffer springs on the heavy iron rods at both ends of the balance bar via a fixed pulley system. An empty layer is located on the upper part of the outer shell of the float, with spring baffles arranged in an array around its perimeter. A freely movable center-of-gravity offset ball is located within the empty layer, connected to the center-of-gravity stabilizing ball at the bottom of the outer shell of the float via a chain.

[0028] Furthermore, following the sequence from the long half-axis to the oblique axis and then to the short half-axis of the float inner shell, the stiffness of the shock-absorbing springs between the inner and outer shells of the float gradually increases. This not only protects the inner shell of the float and its internal mechanism, but also concentrates the movement of the inner shell of the float in the horizontal plane, which is beneficial for the pendulum to rotate and generate electricity.

[0029] Furthermore, the pendulum power generation device is divided into a central pendulum and a peripheral pendulum. The height and length of the central pendulum are both greater than those of the peripheral pendulum, so that the central rotor can obtain more energy during the oscillation of the float.

[0030] Furthermore, the central pendulum moves coaxially with the swashplate, and the central pendulum can transfer some of the generated energy to the swashplate.

[0031] Furthermore, the fixed pulley assembly is connected to the heavy iron bars at both ends of the balance bar via a force buffer spring, which serves to delay and buffer the force.

[0032] Furthermore, the balance bar is connected to the heavy iron rod at both ends. During the reciprocating motion of the plunger, the balance bar swings up and down through the fixed pulley group, causing the center of gravity of the float to change continuously.

[0033] Furthermore, the bottom of the float shell has an empty layer containing a freely movable center-of-gravity offset ball. Under the action of external force, the center-of-gravity offset ball rolls freely, and due to the lever principle, the center of gravity of the float changes continuously.

[0034] Furthermore, the bottom of the float's outer shell is connected to a center-of-gravity stabilizing ball via a chain. The center-of-gravity stabilizing ball can submerge into the seabed, allowing the float's center of gravity to move back and forth around the centerline.

[0035] Example 3: Based on the same inventive concept, this example also provides a wave energy power generation method, based on the teardrop-shaped wave energy power generation device described above, such as... Figure 2 As shown, the main steps include the following: S1, Deployment process of power generation device: Deploy the power generation device to the preset water area, so that the outer shell of the float floats on the water surface and the center of gravity stabilizer ball sinks into the water; S2, Wave energy harvesting process: When waves hit the outer shell of the float, the horizontal wave energy causes the inner shell of the float to move circumferentially within the outer shell of the float, and drives the central pendulum and the peripheral pendulum to rotate. S3, Pendulum power generation process: The central pendulum and the peripheral pendulum rotate around the axis under the action of horizontal wave energy, and the rotational mechanical energy is converted into electrical energy through the energy conversion device; S4, Oscillating buffer process: The swashplate rotates coaxially with the central pendulum, driving the plunger to reciprocate in the inverted groove. The fixed pulley system drives the balance bar and the two end weight bars to swing up and down, causing the float's center of gravity to oscillate continuously. At the same time, the oscillation of the float's center of gravity in turn drives the central pendulum and the peripheral pendulum to rotate. S5, Vertical wave energy utilization process: A portion of the vertical wave energy is transmitted to the balance bar inside the float's inner shell through the shock-absorbing spring located on the short axis of the float's inner shell, causing the balance bar to swing up and down, and driving the central pendulum to rotate through the fixed pulley system and plunger; another portion of the vertical wave energy is transmitted to the center of gravity offset ball located in the top empty layer through the float's outer shell, causing the center of gravity offset ball to rotate around the center line of the float, and in conjunction with the action of the center of gravity stabilizing ball, the center of gravity of the float oscillates continuously, thereby driving the central pendulum and the peripheral pendulum to rotate.

[0036] Furthermore, all parts of this application that are not described in detail are the same as or implemented using existing technology.

[0037] In summary, the water droplet-shaped wave energy power generation device and power generation method of this application are as follows: (1) By means of the shock-absorbing spring between the inner and outer shells of the float, the inner shell of the float and its components can be protected under severe sea conditions when the waves have a large impact on the float; (2) By connecting the central rotor to the swashplate, part of the energy obtained by the central pendulum can be transferred to the swashplate, and the swashplate then transfers the energy to the plunger. During the reciprocating motion of the plunger, the balance bar and the heavy iron bar swing up and down through the fixed pulley system. When the waves are small, the slight impact causes the central rotor to move, which in turn causes the balance bar and the heavy iron bar to move. The movement of the balance bar and the heavy iron bar causes the center of gravity of the float to change back and forth continuously. The oscillation of the float then drives the rotor to move in turn. Through the action of the force buffer spring, the pendulum's power generation tends to be stable. (3) By connecting the two ends of the balance bar to the heavy iron bar, and with the movement of the center of gravity offset ball in the upper part of the float, when the waves are large at sea, the vertical swing of the balance bar and the heavy iron bar can promote the balance bar to swing up and down, and the center of gravity offset ball rotates around the center line of the float continuously. Through the continuous back and forth change of the center of gravity, the float tends to move in a stable manner, and at the same time, the energy of the irregular waves in all directions is concentrated and transmitted to the pendulum power generation device.

[0038] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A teardrop-shaped wave energy generation device, characterized in that: The device includes a float outer shell (1), a float inner shell (2), a wave energy collection device, a pendulum power generation device, a swing buffer device, and a vertical wave energy utilization device. The float outer shell (1) is teardrop-shaped and has a float inner shell (2) inside. The wave energy collection device includes multiple shock-absorbing springs (3) evenly connected between the float outer shell (1) and the float inner shell (2). The pendulum power generation device includes a central pendulum (4) and multiple peripheral pendulums (5) located on the upper layer of the float inner shell (2). The swing buffer device includes a balance bar pulley mechanism located on the lower layer of the float inner shell (2). The vertical wave energy utilization device includes a center of gravity offset ball (14) located in the empty layer at the top of the float outer shell (1). The bottom of the float outer shell (1) is connected to a center of gravity stabilizing ball (16) by a chain (15).

2. The teardrop-shaped wave energy generation device according to claim 1, characterized in that, The plurality of damping springs (3) are evenly distributed around the circumference of the inner shell of the float (2), and the damping springs located in the long axis direction of the inner shell of the float have the smallest stiffness, while the damping springs located in the short axis direction of the inner shell of the float have the largest stiffness.

3. The teardrop-shaped wave energy generation device according to claim 1, characterized in that, The central pendulum (4) is located in the middle of the upper layer of the inner shell (2) of the float. Multiple peripheral pendulums (5) are evenly arranged around the central pendulum (4), and the height and length of the central pendulum (4) are greater than those of the peripheral pendulums (5).

4. A water droplet-shaped wave energy generation device according to claim 1, characterized in that, The balance bar pulley mechanism includes a swashplate (6) that rotates coaxially with the central pendulum (4). The lower surface of the swashplate (6) is in contact with two plungers (11). The plungers (11) are slidably disposed in the inverted convex groove, and the bottoms of the two plungers (11) are connected to the force buffer springs (10) on the two balance bars (7) respectively through a fixed pulley group (9).

5. A water droplet-shaped wave energy generation device according to claim 4, characterized in that, A plunger spring (12) is provided between the plunger (11) and the inverted groove.

6. A teardrop-shaped wave energy generation device according to claim 4, characterized in that, The two balance bars (7) are symmetrically arranged on the front and rear sides of the swashplate (6) along the short axis of the inner shell of the float. One end of each balance bar (7) is connected to the positioning shaft located in the middle of the swashplate (6), and the other end is connected to a heavy iron bar (8).

7. A teardrop-shaped wave energy generation device according to claim 1, characterized in that, The inner wall of the top empty layer of the float shell (1) is uniformly provided with multiple spring baffles (13) along the circumference, and the bottom surface of the top empty layer is a concave structure.

8. A teardrop-shaped wave energy generation device according to claim 4, characterized in that, The float outer shell (1), float inner shell (2), and balance bar (7) are all made of rigid plastic.

9. A teardrop-shaped wave energy generation device according to claim 6, characterized in that, The material density of the heavy iron rod (8) is greater than that of the balance rod (7), and the material density of the center of gravity offset ball (14) is greater than that of the float shell (1).

10. A wave energy generation method, based on the teardrop-shaped wave energy generation device as described in any one of claims 1 to 9, comprising the following steps: S1, Deployment process of power generation device: Deploy the power generation device to the preset water area, so that the outer shell of the float floats on the water surface and the center of gravity stabilizer ball sinks into the water; S2, Wave energy harvesting process: When waves hit the outer shell of the float, the horizontal wave energy causes the inner shell of the float to move circumferentially within the outer shell of the float, and drives the central pendulum and the peripheral pendulum to rotate. S3, Pendulum power generation process: The central pendulum and the peripheral pendulum rotate around the axis under the action of horizontal wave energy, and the rotational mechanical energy is converted into electrical energy through the energy conversion device; S4, Oscillating Buffer Process: The swashplate rotates coaxially with the central pendulum, driving the plunger to reciprocate in the inverted groove. The fixed pulley system drives the balance bar and the two end weight bars to swing up and down, causing the float's center of gravity to oscillate continuously. At the same time, the oscillation of the float's center of gravity in turn drives the central pendulum and the peripheral pendulum to rotate. S5, Vertical wave energy utilization process: A portion of the vertical wave energy is transmitted to the balance bar inside the float's inner shell through the shock-absorbing spring located on the short axis of the float's inner shell, causing the balance bar to swing up and down, and driving the central pendulum to rotate through the fixed pulley system and plunger; another portion of the vertical wave energy is transmitted to the center of gravity offset ball located in the top empty layer through the float's outer shell, causing the center of gravity offset ball to rotate around the center line of the float, and in conjunction with the action of the center of gravity stabilizing ball, the center of gravity of the float oscillates continuously, thereby driving the central pendulum and the peripheral pendulum to rotate.

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