Miniature wave power generation device
By designing a small and micro wave power generation device, the mechanical swing arm and one-way wheel are driven to move with a rectangular sliding plate, the problem of low efficiency of existing wave power generation technology is solved, and the efficiency and cost reduction of wave power generation is improved, which is suitable for large-scale promotion.
Patent Information
- Application Number
- CN202311805666.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-26
- Publication Date
- 2025-06-27
AI Technical Summary
The existing wave power generation technology is not very effective and has little commercial promotion value. The main reason is that it cannot completely solve the problems of natural disasters at sea and seawater corrosion. The wave formation cycle is unstable, resulting in unstable power generation. The device relies on ancillary facilities and is costly.
A small and micro wave power generation device is designed, and a rectangular sliding plate is used to drive the mechanical swing arm to reciprocate back and forth, drive the one-way wheel and the generator to continuously work, maintain the device balance through the controller and process the power generation power.
It has achieved the efficiency and cost reduction of wave power generation. The device has a simple structure and ingenious design, which can effectively generate wave power generation and is suitable for large-scale promotion.
Smart Images
Figure CN120211978A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of wave power generation, and particularly to a small and micro wave power generation device applied near the coast and using the energy of the forward and backward movement of waves for power generation.
Background Art
[0002] When humans gradually shift their focus from traditional energy development to new energy development, wave power generation has become an enduring topic. Currently, almost all coastal countries in the world are researching and promoting it. It is calculated that if 0.1% of the kinetic energy of wave energy can be converted into electrical energy, it is equivalent to 5 times the total global energy consumption!
[0003] Wave power generation relies on the energy of the surging of seawater in all directions, directly driving mechanical motion to drive a generator for power generation. It is hardly affected by factors such as time, friction, and temperature. It is a direct, cost-free, powerful, sustainable, and pollution-free green power generation method, worthy of being vigorously promoted. So far, there have been numerous wave power generation methods, but basically they are divided into two categories. One is the method of using the rise and fall of waves to drive a hydraulic buoy system, and driving a generator to generate electricity as the wave rises and falls. The other is the multi-section floating method, where hydraulic cylinders are installed between floating bodies, and through reciprocating motion, driving mechanical operation to drive a generator for power generation. Of course, there are also others, but they are not common. The electricity generated by these power generation methods can only be transmitted back to the shore through undersea cables.
[0004] However, from the actual situation, the benefits of all wave power generation methods are not high, and the value of commercial promotion is not great. There are three reasons for this: First, it cannot completely solve the problems of natural disasters at sea and seawater corrosion, leaving the power generation device in the sea for too long. Second, the formation period of waves is not very stable, and power generation cannot maintain a stable output. Third, the power generation device has to rely on other auxiliary facilities, and these auxiliary facilities are often bulky, and power transmission requires laying undersea cables, resulting in a doubling of costs.
Summary of the Invention
[0005] The purpose of the present invention is to provide a new type of small and micro wave power generation device to solve the above problems. Through a cuboid sliding plate that can effectively withstand the front and back impacts of waves, driving a mechanical swing arm to perform reciprocating motion back and forth, thereby driving the wheel handle on a one-way wheel to move up and down, and then driving a one-way circle to perform continuous circular motion, effectively generating electricity. This has practical significance for improving and perfecting the methods and power generation efficiency of hydraulic power generation, especially wave power generation, and can be widely promoted.
[0006] The present invention is achieved through the following technical solutions:
[0007] A small and micro wave power generation device includes four parts: a sea surface grid support system, a force-bearing plate, a power generation mechanism, and a controller. The force-bearing plate includes a chute plate and a cuboid slide plate. The power generation mechanism includes a bracket, a swing arm, a one-way wheel, a wheel pendulum, a steering pull rod, and a generator. The controller also serves as the base of the mechanism, aiming to prevent the entire power generation device from being overturned by the impact of the waves.
[0008] Furthermore, the force-bearing plate is a cuboid structure with fixed length, width, and height. The manufacturing material can be a hard plastic that is not afraid of seawater immersion over the years. The force-bearing plate is roughly level with the sea surface and swings back and forth with the impact and retreat of the waves.
[0009] Furthermore, the power generation mechanism is driven by the force-bearing plate to move the swing arm back and forth, thereby driving the wheel handle to move up and down, driving the one-way wheel to make a one-way circular motion, and then driving the water-isolated generator to work continuously. The steering pull rod plays the role of a steering support point, and the bracket plays the role of connection and fixation.
[0010] Furthermore, the controller also has the function of a base. It is responsible for the preliminary processing of the electric energy generated by the generator and maintaining the swing balance of the entire power generation mechanism in the water.
[0011] Furthermore, as shown by the upper arrow in the attachment Figure 2-6 Regardless of whether the movement trajectory of the force-bearing plate is a forward swing or a backward swing, the running trajectory of the one-way wheel can only be a single-direction positive circle. As long as the swing kinetic energy does not disappear, the positive circle running can be maintained.
[0012] Furthermore, the generator needs to be water and electricity isolated to prevent water ingress.
[0013] Furthermore, the bracket does not need to be protected by an outer shell to reduce the impact pressure of seawater back and forth, reduce the damage frequency, facilitate the balance of the power generation mechanism, and also facilitate maintenance.
[0014] Furthermore, the small and micro wave power generation device can be installed in the area about 600 meters outward from the seawater ebb position near the coast. As Figure 7 shown, the waves in this area are stable in shape, and the impact and retreat energy of the waves is large. The seabed in this area is very shallow, and the cost of building a grid support system in a grid pattern by driving piles and columns is not high. The power generation device needs to be fixed on it to work, and it is easy to form a large-scale power generation structure. The key is that the power transmission cable can be directly structured on the support system and sent back to the shore, and the distance is short, so there is no need to build a separate power transmission route.
[0015] Further, whether the generator can generate electricity continuously depends on whether the forward and backward swings of the force-bearing plate are in place. There are relatively strict requirements for such settings. Firstly, the length of the sliding groove needs to be designed according to the approximate duration, interval, and force of each wave's advance and retreat in the sea area where it is located. Secondly, a scroll spring disc can be additionally installed to utilize the storage and continuation of the spring's force to ensure that the generator has continuous energy to keep working in case the forward and backward swings are not in place.
[0016] Further, the power of this device should not be made large. It is mainly small to reduce the damage frequency caused by bad weather and marine debris.
[0017] The beneficial effects of the present invention are as follows: simple structure, ingenious design, easy to lay, low cost, high efficiency, convenient to use. By the forward and backward swings of the mechanical swing arm, it drives the positive circular work of the one-way circle, meeting the conditions and requirements for the generator to work, being able to effectively generate electricity from sea waves, improving and perfecting the methods of hydraulic power generation, especially sea wave power generation, having practical significance, and can be widely promoted.
Description of the Drawings
[0018] Figure 1 It is a schematic structural diagram of the power generation mechanism in the small and micro sea wave power generation device of the present invention;
[0019] Reference numerals: 1, force-bearing plate; 2, one-way wheel; 3, wheel handle; 4, swing arm; 5, steering pull rod; 6, bracket; 7, controller (base); 8, waterproof generator.
[0020] Figures 2 to 4 It is a structural diagram of the forward swing of the force-bearing plate and the single-direction movement of the direction wheel, Figures 5 to 6 For the backward swing of the force-bearing plate, the direction wheel maintains Figure 2-4 The structural diagram of the rotational direction.
[0021] Figure 7 It is a schematic diagram of the laying of the sea surface grid support system.
Detailed Embodiments
[0022] The following further describes the present invention in conjunction with the drawings and specific embodiments:
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and are not used to describe a specific order.
[0024] As used herein, the mention of "embodiments" means that the specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of the present application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.
[0025] First, it solves the problem that the hydraulic resources in a specific occasion must match the same utilization facilities.
[0026] The existence of ocean waves, firstly, is not seasonal; secondly, it has a wide range and strong power; thirdly, there is no restriction of the concept of water head; fourthly, it can be sustainably utilized; fifthly, the utilization cost is zero; and sixthly, it is clean and environmentally friendly. However, wave power generation is also a field of hydraulic power generation. Although ocean waves are strong and concentrated, the impact area that can be effectively borne is very small, and the forward and backward movement speed is not fast under normal weather conditions. Therefore, the wave power generation mechanism that can be affected by ocean waves we installed needs to be made correspondingly small. Through experiments, the power of this kind of motor can be selected between 500 watts and 1000 watts. That is to say, even if the ocean waves are stable, on average, the power generation of a single unit per hour can only be between 0.5 and 1 degree. During the windy period (except for severe weather such as typhoons, the salvage mechanism needs to be disassembled and taken ashore for protection), the power generation value can be slightly higher. Just this point, the efficiency is really not high. However, if such a single unit is installed and connected in series every 6 square meters in a sea area covering several mu, dozens of mu, hundreds of mu or even a wider area, front, back, left and right.
[0027] Second, it solves the problems of seawater corrosion and typhoon damage.
[0028] Let's first look at the estimated installation cost of a 500-watt wave generator:
[0029] To install this wave power generation device, it is first necessary to build a fixed or floating double-layer grid support system, the height of which is slightly greater than the height of the power generation mechanism. The system is in the shape of a criss-crossing well, extending longitudinally from the coast near low tide to 600 meters away, and horizontally extending parallel to the coastline to both ends. The grid of the grid structure is 3 meters long and 2 meters wide, that is, 6 square meters in size, which means that there is a double-layer intersection every 6 square meters, and the power generation device is installed on the intersection in a positive and negative order. Whether it is a fixed grid system or a floating grid system, it is necessary to pile columns (preferably concrete columns). The former can be made into a steel welded structure based on the columns, and then a layer of hard plastic is wrapped on the steel structure. The latter can be made into a knot structure of marine cables, so that there is no need to worry about seawater corrosion for a long period of time. From the perspective of construction cost, the former is obviously higher, but no matter which system, the cost will be much lower than building a hydropower station dam with the same installed capacity. A column of the grid support system can support multiple intersections, and it does not need to be too dense, otherwise the impact pressure of seawater will be large. On average, there are about 111 nodes in one acre of sea surface that can be used for power generation, which means that about 111 power generation units can be installed in one acre of sea surface. Because the grids supporting the system are wide, the impact of waves on them is minimal.
[0030] Third, it solves the problem of high power generation cost and low efficiency.
[0031] In terms of cost estimation, the construction cost of a 6-square-meter system structure is about 500 yuan, and the construction cost of one acre is 666 square meters, a total of 55,500 yuan.
[0032] Normally, the production cost plus maintenance cost of a 500-watt micro wave power generation device is about 1,800 yuan, so the loading cost for one acre of sea surface is 111×1,800=199,800 yuan, and 55,500+199,800=255,300 yuan.
[0033] Let's estimate its annual power generation benefits:
[0034] The offshore operation time of power generation equipment is usually not too long in a year, which is affected by bad weather, necessary for maintenance, and other unexpected possibilities cannot be ruled out. Generally speaking, the non-operation time can be estimated to be about 5 months, so the actual working time of the power generation equipment is only 215 days. Taking a 500-watt power generation equipment as an example, the annual power generation of a single machine is 215×24×0.5=2580 kWh. The annual power generation benefit of a power generation equipment with an area of one acre is 2580×111=286380 kWh. Calculated at a unified purchase price of 0.36 yuan per kWh, the actual income can reach 103,096 yuan.
[0035] That is to say, theoretically, investing in a one-acre wave power generation project is expected to recover the cost in two and a half years. Of course, in the actual implementation process, there will surely be discrepancies in this estimate.
[0036] Refer to Figures 1-6 As shown, the power generation mechanism of a small and micro wave power generation device includes a stress plate, a one-way wheel, a wheel handle, a swing arm, a steering pull rod, a bracket, a controller (base), and a water-isolated generator. The stress plate drives the swing arm to move back and forth, the swing arm pushes the wheel handle to move up and down, the wheel handle drives the one-way wheel to make a one-way circular motion, the one-way circle drives the water-isolated generator to work, and the controller receives the electric energy generated by the motor, performs preliminary processing, and then transports it to the shore, while also taking into account the balance of the base.
[0037] Preferably, for the small and micro wave power generation device, a grid-shaped support system in the shape of a well character needs to be constructed on the offshore sea surface. The system can be a double-layer steel frame structure or a double-layer marine cable knot array structure, and piling columns are required for fixation and knotting. The power generation mechanism is fixed at each pair of intersection points of the double-layer grid system. The power generation mechanism is small in size, and the loading quantity and installed capacity are calculated based on the sea surface area.
[0038] Preferably, the power generation mechanism of the small and micro wave power generation device includes a stress plate, a one-way wheel, a wheel handle, a swing arm, a steering pull rod, a controller (base), and a water-isolated generator. The stress plate moves back and forth with the waves, driving the swing arm to swing back and forth.
[0039] Preferably, the movement of the swing arm can be completed only with the support of the steering pull rod. The wheel handle is placed in the inner space of the swing arm and moves up and down as the swing arm swings back and forth.
[0040] Preferably, the wheel handle drives the one-way wheel to make a circular motion in only one direction..
[0041] Preferably, the circular motion of the one-way wheel drives the water-isolated generator to work continuously.
[0042] In summary, a small and micro wave power generation device can effectively generate electricity from waves by means of knotting, converting the reciprocating motion and up-and-down motion of the mechanism into a one-way circular motion, improving and perfecting the methods of hydraulic power generation and wave power generation, enhancing the efficiency of wave power generation and reducing costs, which has practical significance and can be widely promoted.
[0043] Based on the disclosure and teachings of the above specification, those skilled in the art to which the present invention pertains can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.
Claims
1. A small and micro wave power generation device, characterized in that: It includes a sea surface grid support system, a stress plate, a power generation mechanism, and a controller (base). The sea surface grid support system only extends to the sea surface approximately 600 meters from the coast. It is double-layered and needs to be fixed by driving piles and columns at the bottom. The system can be a steel welded structure or an ocean cable knot structure. The small and micro wave power generation device is fixed at the intersection points of the structure.
2. The small and micro wave power generation device according to claim 1, characterized in that: The stress plate moves with the back-and-forth swing of the waves, thereby driving the power generation mechanism to work.
3. The small and micro wave power generation device according to claim 1, wherein: The swing arm of the power generation mechanism swings back and forth, effectively driving the wheel handle to move up and down.
4. The small and micro wave power generation device according to claim 3, wherein: The up-and-down movement of the wheel handle drives the one-way circle to make a circular motion.
5. The small and micro wave power generation device according to claim 4, wherein: The movement of the one-way circle drives the water-proof generator to work.