Wave power generation device utilizing long-piled wharf pile foundation
By installing a friction power generation device on the pile foundation of a high-pile pier and utilizing the cooperation of a floating power generation ring and a buoy, the problems of complex structure and low efficiency of existing wave power generation devices are solved, and efficient and low-cost wave energy generation is achieved.
Patent Information
- Application Number
- CN202423027964.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-09-26
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Existing wave power generation devices have complex structures, high wave energy requirements, low power generation efficiency, and occupy large sea areas, affecting port operations.
Taking advantage of the structural characteristics of the high-pile pier pile foundation, wave energy is converted into electrical energy through a friction power generation device, including the friction sliding cooperation between the floating power generation ring and the friction power generation inner ring, and the use of the floating body to drive the power generation ring to float up and down to generate electricity.
The invention realizes wave energy power generation with simple structure and convenient implementation, utilizes the existing dock structure, does not affect the dock structure and operation, and has high power generation efficiency and low cost.
Smart Images
Figure CN223387450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of friction power generation equipment, in particular to a wave power generation device utilizing a high-pile dock pile foundation. Background Art
[0002] Wave power generation is a technology that converts wave energy into electricity. It effectively combines established mechanical manufacturing and power generation technologies to harness the inexhaustible wave energy of vast coastal areas and convert it into electricity at a low cost. Ports and their docks are particularly rich in wave energy and are therefore ideally suited for its development and utilization.
[0003] Current electromagnetic generators that harness wave energy have complex mechanical structures, require high wave energy, and have low power generation efficiency, resulting in low economic benefits. They also require a significant area of sea, and exploiting wave energy within port areas can impact port operations. Therefore, there is an urgent need to develop a wave energy harnessing device with a simple structure, easy implementation, and the ability to utilize existing dock structures without impacting dock operations.
[0004] Triboelectric generators generate electricity through contact and friction between materials. They have excellent conversion advantages for low-frequency mechanical energy, and are characterized by high energy conversion efficiency, ease of manufacture, low cost, and high power density. Based on this, a wave power generation device utilizing the pile foundations of a high-piled pier was proposed. Utility Model Content
[0005] To address existing technical issues, the present invention provides a wave power generation device that utilizes the pile foundations of high-pile docks. By leveraging the favorable structural and spatial characteristics of the pile foundations, the wave energy-induced water level fluctuations drive a triboelectric generator to generate electricity. This device boasts a simple structure, is easy to implement, and utilizes existing dock pile foundations without impacting the dock's structure or operation.
[0006] In order to overcome the problems existing in the prior art, the technical solution adopted by the present invention is: a wave power generation device utilizing the pile foundation of a high-pile pier, including a friction power generation device and a floating body; the friction power generation device includes a floating power generation ring and a friction power generation inner ring, the friction power generation inner ring is used to be fixedly installed on the pile foundation, the floating power generation ring is sleeved on the outside of the friction power generation inner ring, and the floating body is installed on the floating power generation ring; the floating power generation ring includes a friction power generation outer ring, and the friction power generation outer ring and the friction power generation inner ring are frictionally and slidingly matched; the friction power generation outer ring is connected to a first wire, and the friction power generation inner ring is connected to a second wire.
[0007] The floating power generation ring further comprises a shell, which is sleeved on the outside of the friction power generation outer ring, and the float is installed on the shell.
[0008] A sealing ring and a pressure cover are respectively installed at the upper and lower ends of the shell, and the sealing ring is located between the friction power generation outer ring and the pressure cover.
[0009] An extension frame is installed on the floating power generation ring. The extension frame extends downward and extends out of the floating power generation ring for a distance. The floating body is installed on the lower side of the extension frame.
[0010] The extension frame includes a connecting rod and a ring seat. The ring seat is connected to the floating power generation ring through at least two connecting rods. The floating body is installed on the ring seat.
[0011] At least three positioning wheels are respectively installed at the upper and lower ends of the floating power generation ring. The positioning wheels are used to abut against the pile foundation to enable the floating power generation ring to float up and down stably.
[0012] The triboelectric outer ring includes a first friction material layer and a first electrode, a plurality of first electrodes are installed in the first friction material layer, and a first wire is connected to the first electrode; the triboelectric inner ring includes a second friction material layer and a second electrode, a plurality of second electrodes are installed in the second friction material layer, and a second wire is connected to the second electrode.
[0013] The utility model has the following beneficial effects:
[0014] 1. This utility model utilizes the advantageous structural and spatial characteristics of the pile foundations of high-pile docks. Wave energy creates water level fluctuations that drive a floating body, which in turn drives a floating generator ring, which rises and falls with the waves. This generates electricity through friction between the outer and inner triboelectric rings. This utility model boasts a simple structure and is easy to implement. It utilizes existing dock pile foundations without impacting the dock's structure or operation.
[0015] 2. The floating power generation ring of the present invention further comprises a housing, which is sleeved on the outside of the friction power generation outer ring, and the float is mounted on the housing, thereby protecting the friction power generation outer ring.
[0016] 3. The utility model realizes the sealing inside the shell through the sealing ring and can protect the friction power generation outer ring and the friction power generation inner ring.
[0017] 4. The utility model sets an extension frame to keep the friction power generation outer ring and the friction power generation inner ring away from the water surface, thereby reducing the impact of seawater on the friction power generation device.
[0018] 5. At least three positioning wheels are installed at the upper and lower ends of the floating power generation ring of the utility model. The positioning wheels are used to abut against the pile foundation to make the floating power generation ring float up and down stably. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0021] Figure 2 for Figure 1 Schematic diagram of the AA cross-section structure.
[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of the friction power generation outer ring of the utility model.
[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the friction power generation inner ring of the utility model.
[0024] Figure 5 for Figure 2 Enlarged structural diagram at point B in the middle.
[0025] Figure 6 This is a structural schematic diagram of the utility model in which a positioning wheel is installed on the gland.
[0026] Reference numerals
[0027] Pile foundation 100, cable duct 101, friction power generation device 200;
[0028] Housing 210, sealing ring 211, gland 212,
[0029] Extension frame 220, connecting rod 221, ring seat 222,
[0030] Floating body 230;
[0031] Triboelectric outer ring 240, first friction material layer 241, first electrode 242, first wire 243;
[0032] Triboelectric inner ring 250, second friction material layer 251, second electrode 252, second wire 253;
[0033] Positioning wheel 260 , mounting plate 261 , ear plate 262 , wheel body 263 , long hole 264 . DETAILED DESCRIPTION
[0034] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.
[0035] Example 1:
[0036] See also Figure 1-6 The present invention provides a wave power generation device utilizing a high-pile dock pile foundation, comprising a friction power generation device 200 and a floating body 230; the friction power generation device 200 comprises a floating power generation ring and a friction power generation inner ring 250, the friction power generation inner ring 250 is used to be fixedly mounted on the pile foundation 100, the floating power generation ring is sleeved on the outside of the friction power generation inner ring 250, and the floating body 230 is mounted on the floating power generation ring; the floating power generation ring comprises a friction power generation outer ring 240, and the friction power generation outer ring 240 and the friction power generation inner ring 250 are frictionally and slidingly matched; the friction power generation outer ring 240 is connected to a first wire 243, and the friction power generation inner ring 250 is connected to a second wire 253.
[0037] The buoy 230 drives the floating generator ring to float up and down as the waves drive it, generating electricity through friction between the outer triboelectric ring 240 and the inner triboelectric ring 250. This utility model utilizes the advantageous structural and spatial characteristics of the pile foundation 100 of the high-pile dock, allowing the water level fluctuations caused by wave energy to drive the triboelectric generator to generate electricity.
[0038] In this embodiment, the length of the triboelectric power generation outer ring 240 is longer than the length of the triboelectric power generation inner ring 250 .
[0039] In this embodiment, the friction power generation outer ring 240 includes a first friction material layer 241 and a first electrode 242, a plurality of first electrodes 242 are installed in the first friction material layer 241, and the first wire 243 is connected to the first electrode 242; the friction power generation inner ring 250 includes a second friction material layer 251 and a second electrode 252, a plurality of second electrodes 252 are installed in the second friction material layer 251, and the second wire 253 is connected to the second electrode 252.
[0040] Specifically, the first friction material layer 241 uses polyethylene terephthalate (PET) as its friction material, and the second friction material layer 251 uses polytetrafluoroethylene (PTFE) as its friction material. The first and second electrodes 242, 252 are ring-shaped electrodes, located within the first and second friction material layers 241, 251, respectively. Multiple first and second electrodes 242, 252 are axially arranged, and the electrodes on each friction material layer are connected in series. During operation, the first and second wires 243, 253 are connected to the rectifier system.
[0041] The float 230 can be an airbag structure, a plastic box structure, or a foam structure. It is fixed by bonding or bundling. The buoyancy of the float 230 must ensure that the floating power generation ring floats up and down with the waves.
[0042] See also Figure 2 、 5 The pile foundation 100 is provided with a wire groove 101 for the second wire 253 to pass through, so that the second wire 253 will not affect the up and down movement of the friction power generation outer ring 240.
[0043] Example 2:
[0044] Based on Example 1, see Figure 2 The floating power generation ring further includes a housing 210, which is mounted on the outside of the friction power generation outer ring 240, and the float 230 is mounted on the housing 210. The friction power generation outer ring 240 is protected by the housing 210.
[0045] The housing 210 may be an integral structure, so that the friction power generation device 200 needs to be installed on the pile 100 after the pile 100 is cast and before the upper structure of the pile 100 is cast.
[0046] Housing 210 can also be composed of two halves, joined together by a clamp structure, or by welding multiple orifice plates to the outer sides of the two halves where they meet, and then bolted together. During assembly, the joint surface of housing 210 is sealed with sealant. This allows for later installation of power generation device 200.
[0047] Example 3:
[0048] Based on Example 2, see Figure 2 、 5 The upper and lower ends of the housing 210 are respectively provided with a sealing ring 211 and a pressure cover 212, and the sealing ring 211 is located between the triboelectric outer ring 240 and the pressure cover 212. The sealing ring 211 realizes the sealing inside the housing 210 and can protect the triboelectric outer ring 240 and the triboelectric inner ring 250.
[0049] Specifically, when in use, the outer wall of the pile foundation 100 is polished and smoothed, and then a waterproof coating, such as paint, is sprayed on it to make the outer surface of the pile foundation 100 smooth, thereby cooperating with the sealing ring 211 to achieve a sealing effect.
[0050] In order to facilitate inspection and maintenance, the sealing ring 211 is a sealing ring with a fracture, and the gland 212 is two half rings. The gland 212 is connected and fixed to the housing 210 by bolts.
[0051] Example 4:
[0052] In this embodiment, see Figure 2 An extension frame 220 is mounted on the floating power generation ring. The extension frame 220 extends downward and extends a distance beyond the floating power generation ring. The buoy 230 is mounted below the extension frame 220. The extension frame 220 keeps the triboelectric outer ring 240 and the triboelectric inner ring 250 away from the water surface, reducing the impact of seawater on the triboelectric device 200.
[0053] In one of the schemes, see Figure 2 、 3 The extension frame 220 includes a connecting rod 221 and a ring seat 222 . The ring seat 222 is connected to the floating power generation ring through at least two connecting rods 221 , and the float 230 is installed on the ring seat 222 .
[0054] Specifically, in Figure 2 In the embodiment, one end of three annularly evenly distributed connecting rods 221 is connected to the housing 210, and the other end extends downward and is installed with a ring seat 222, and a float 230 is installed on the lower side of the ring seat 222. The extension frame 220 can be a structure integrated with the housing 210.
[0055] Example 5:
[0056] In this embodiment, at least three positioning wheels 260 are mounted on the upper and lower ends of the floating power generation ring. These positioning wheels 260 abut against the pile foundation 100 to ensure stable up and down movement of the floating power generation ring. The friction between the positioning wheels 260 and the pile foundation 100 also limits the floating power generation ring from rotating freely.
[0057] See also Figure 2 、 5 6. Four positioning wheels 260 are evenly distributed in an annular manner and mounted on the pressure cover 212. For details, see Figure 6 The positioning wheel 260 includes a mounting plate 261, ear plates 262, and a wheel body 263. The lower ends of the two ear plates 262 are welded to the mounting plate 261, and the upper ends of the two ear plates 262 are mounted with the wheel body 263 via a pin. The wheel body 263 and the pin are connected by a bearing, and the wheel body 263 abuts against the pile foundation 100. To facilitate position adjustment, a long hole 264 is provided on the mounting plate 261. A screw passes through the long hole 264 and is screwed into the pre-set threaded hole on the pressure cover 212 for fixing.
[0058] In the above embodiment, the housing 210 , the pressure cover 212 , the extension frame 220 , and the positioning wheel 260 are made of plastic while ensuring the strength of the mechanical structure.
[0059] The working steps or principles of the utility model are as follows:
[0060] During installation, after the foundation pile 100 is cast and before the upper structure of the foundation pile 100 is cast, the outer wall of the pile foundation 100 is polished and smoothed, and then sprayed with waterproof paint to make the outside of the pile foundation 100 smooth. The friction power generation inner ring 250 is installed on the pile foundation 100 by bonding.
[0061] Then, the friction power generation outer ring 240 installed in the outer shell 210 is put onto the outside of the friction power generation inner ring 250, and the sealing ring 211 and the pressure cover 212 are installed.
[0062] The float 230 is then mounted on the underside of the ring seat 222 .
[0063] When the water surface fluctuates, the float 230 moves up and down with the waves, driving the outer shell 210 to slide mechanically up and down along the pile foundation 100, so that the friction power generation outer ring 240 and the friction power generation inner ring 250 attached to the inner side of the outer shell 210 and the surface of the pile foundation 100 generate friction power and transmit the electrical energy through the wires.
Claims
1. A wave power generation device utilizing pile foundations of high-piled docks, characterized by: It includes a friction power generation device (200) and a floating body (230); The friction power generation device (200) comprises a floating power generation ring and a friction power generation inner ring (250), the friction power generation inner ring (250) is used for fixed installation on the pile foundation (100), the floating power generation ring is sleeved on the outside of the friction power generation inner ring (250), and the float (230) is installed on the floating power generation ring; The floating power generation ring comprises a friction power generation outer ring (240), and the friction power generation outer ring (240) and the friction power generation inner ring (250) are frictionally and slidingly matched. The friction power generation outer ring (240) is connected to a first wire (243), and the friction power generation inner ring (250) is connected to a second wire (253).
2. The wave power generation device using pile foundations of high-piled docks according to claim 1, characterized in that: The floating power generation ring further comprises a shell (210), the shell (210) being sleeved on the outside of the friction power generation outer ring (240), and the float (230) being mounted on the shell (210).
3. The wave power generation device using pile foundations of high-piled docks according to claim 2, characterized in that: A sealing ring (211) and a pressure cover (212) are respectively installed at the upper and lower ends of the housing (210), and the sealing ring (211) is located between the friction power generation outer ring (240) and the pressure cover (212).
4. A wave power generation device using pile foundations of high-piled docks according to any one of claims 1 to 3, characterized in that: An extension frame (220) is installed on the floating power generation ring. The extension frame (220) extends downward and extends out of the floating power generation ring for a distance. The floating body (230) is installed on the lower side of the extension frame (220).
5. The wave power generation device using pile foundations of high-piled docks according to claim 4, characterized in that: The extension frame (220) comprises a connecting rod (221) and a ring seat (222); the ring seat (222) is connected to the floating power generation ring via at least two connecting rods (221); and the floating body (230) is installed on the ring seat (222).
6. A wave power generation device using pile foundations of high-piled docks according to any one of claims 1 to 3, characterized in that: At least three positioning wheels (260) are respectively installed at the upper and lower ends of the floating power generation ring, and the positioning wheels (260) are used to abut against the pile foundation (100) to enable the floating power generation ring to float up and down stably.
7. The wave power generation device using pile foundations of high-piled docks according to claim 4, characterized in that: At least three positioning wheels (260) are respectively installed at the upper and lower ends of the floating power generation ring, and the positioning wheels (260) are used to abut against the pile foundation (100) to enable the floating power generation ring to float up and down stably.
8. The wave power generation device using pile foundations of high-piled docks according to claim 1, characterized in that: The triboelectric power generation outer ring (240) comprises a first friction material layer (241) and a first electrode (242), wherein a plurality of first electrodes (242) are installed in the first friction material layer (241), and a first wire (243) is connected to the first electrode (242); the triboelectric power generation inner ring (250) comprises a second friction material layer (251) and a second electrode (252), wherein a plurality of second electrodes (252) are installed in the second friction material layer (251), and a second wire (253) is connected to the second electrode (252).