A rotary nanofriction power generation device for collecting fluid mechanical energy

Abstract

The application discloses a rotary nanometer friction power generation device for collecting fluid mechanical energy. The application can very conveniently collect various mechanical energy in different forms, irregular or low frequency, such as wind energy, water energy, wave energy, heat energy and the like, and convert the mechanical energy into electric energy, and has very wide application space. The application provides a new thought and method for collecting micro-nano energy in the environment in the future.

Description

Technical Field

[0001] This invention relates to the field of triboelectric nanogenerators, and particularly to a rotary triboelectric nanogenerator for harvesting fluid mechanical energy. Background Technology

[0002] A significant amount of energy exists in daily life that is not effectively utilized. Wind energy is wasted in the air, and water energy is wasted in fluids. Water flows from rivers, lakes, and seas into human society, involving numerous processes of lifting and lowering. The energy generated during this movement is often taken for granted. For example, in water treatment plants, water flows from one pool to another primarily through pipes and pumps, thus carrying a substantial amount of kinetic and potential energy that is not collected and is overlooked. Therefore, how to effectively utilize this neglected energy has become a key concern for humanity in the 21st century. To address this issue, the following solution is proposed. Summary of the Invention

[0003] The purpose of this invention is to provide a rotary nano-triboelectric power generation device for collecting fluid mechanical energy. This device is applied to the fluid movement process to collect this energy and convert it into electrical energy for pipeline corrosion prevention or sewage treatment, providing a solution and a practical model for energy conservation and emission reduction.

[0004] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0005] A rotary nano-triboelectric power generation device for harvesting fluid mechanical energy includes a static power generation part, a dynamic power generation part, and a shell. The shell is circular, and both the static and dynamic power generation parts are located inside the shell.

[0006] The static power generation component includes an insulating base, a shaft disk, and a static triboelectric nano-power generation unit. Six shaft disks are connected to the insulating base and are distributed at equal angles around the insulating base, with a 60° interval between adjacent shaft disks. The static triboelectric nano-power generation unit includes a support plate, an FEP film, and a conductive tape. The support plate, FEP film, and conductive tape are sequentially attached to each other. The static triboelectric nano-power generation unit is connected to the shaft disk with adhesive to form the static power generation component.

[0007] The dynamic power generation part includes a striking rod and a dynamic triboelectric nano-power generation unit. The dynamic triboelectric nano-power generation unit includes a support plate, a nylon film, and a conductive tape. The support plate, nylon film, and conductive tape are attached to each other in sequence. The dynamic triboelectric nano-power generation unit is fixedly connected to the striking rod with glue to form the dynamic power generation part.

[0008] The device has six sets of dynamic power generation components, which are located on one side of the insulating chassis. The dynamic power generation components are rotatably connected to the insulating chassis. The six sets of dynamic power generation components are distributed at equal angles, with an angle of 60° between adjacent sets. The FEP film on the static power generation component and the nylon film on the dynamic power generation component are directly opposite each other. When the power generation device is started, the dynamic power generation component and the static power generation component continuously come into contact and separate, thereby causing the nylon film and the FEP film to continuously come into contact and separate to generate current.

[0009] Preferably, the outer shell includes a left half-shell and a right half-shell, which are bonded and fixed together with waterproof tape to form a rotating float with a sealed installation space inside.

[0010] Preferably, the outer surface of the housing is provided with an outer push plate, which is arc-shaped and is used to receive external power to drive the housing to rotate. The inside of the housing is provided with an inner push plate, which is used to drive the stationary power generation part to shake so that the stationary power generation part comes into contact with the moving power generation part.

[0011] Preferably, the support plate, FEP film, nylon film and conductive tape are all produced by laser cutting.

[0012] Multiple of these rotary nano-triboelectric generators can be connected in series in water bodies requiring water treatment or pipes requiring corrosion protection. Driven by the fluid, the left and right halves of the shell rotate, causing the internal generators to move, resulting in continuous contact and separation between the static and dynamic generator parts. The FEP membrane of the static generator part and the nylon membrane of the dynamic generator part continuously contact and separate, and each generator unit continuously outputs current.

[0013] Multiple rotating nano-triboelectric power generation units are connected together by wires, and their output electrical signals are connected in parallel.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. A novel rotary triboelectric nanogenerator was designed, utilizing the contact between the static and dynamic power generation parts caused by the rotation of water flow to generate a continuous current. It features a compact and lightweight design, simple structure, multiple power generation units, and no environmental pollution. Because this invention employs a contact-separation power generation method, friction is low, reducing membrane material wear compared to sliding triboelectric power generation, thus extending the device's lifespan.

[0016] 2. This application can conveniently collect the waste mechanical energy in the pipeline and convert it into the electrical energy required for pipeline corrosion prevention or water treatment, thereby reducing the cost of pipeline corrosion prevention and water treatment and achieving the effect of energy conservation and emission reduction.

[0017] 3. This application improves power output by using different numbers of rotating nano-triboelectric generators based on the magnitude of fluid energy, fluid velocity, and the amount of electricity required for pipeline corrosion prevention or water treatment, and by connecting multiple rotating nano-triboelectric generators in series. Attached Figure Description

[0018] Figure 1 This is a front view of the overall structure of the embodiment;

[0019] Figure 2 This is a schematic diagram of the internal rotating device in an embodiment;

[0020] Figure 3 The left and right rotating outer shells are shown in the embodiment;

[0021] Figure 4 This is a schematic diagram of the dynamic power generation unit structure in an embodiment;

[0022] Figure 5 This is a schematic diagram of the static power generation unit structure in an embodiment;

[0023] Figure 6 This is an example of a static triboelectric nanogenerator unit;

[0024] Figure 7 The embodiment is a triboelectric nanogenerator.

[0025] Reference numerals: 1. Striking rod; 2. Insulating base; 3. Shaft disc; 4. Support plate;

[0026] 5. Left half shell; 6. Right half shell; 7. Static triboelectric nanogenerator unit; 8. Dynamic triboelectric nanogenerator unit; 9. Conductive adhesive; 10. FEP film; 11. Nylon film. Detailed Implementation

[0027] The following description is merely a preferred embodiment of the present invention, and the scope of protection is not limited to this embodiment. All technical solutions falling within the scope of the present invention should be protected. Identical components are represented by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom" and "top," "inner" and "outer" refer to directions toward or away from the geometric center of a specific component.

[0028] Example 1

[0029] The results of the rotary triboelectric nanoengine in this embodiment are as follows: Figure 1 As shown, it includes a static power generation unit, a dynamic power generation unit, and a rotating outer casing.

[0030] The static power generation unit consists of an insulating chassis 22, a shaft disk 33, and a static power generation unit 7. Six shaft disks 3 are connected to the insulating chassis 2, and each disk is distributed at an equal angle, that is, each shaft disk 3 is 60° apart. The static power generation unit is composed of an acrylic plate, an FEP film 10, and a conductive adhesive tape 9. The static power generation unit and the shaft disk 3 are connected by adhesive to form the static power generation unit.

[0031] The dynamic power generation section consists of a striking rod 11 and a dynamic power generation unit 8. The dynamic power generation unit is composed of an acrylic plate, a nylon film 11, and a conductive adhesive tape 9. The striking rod 11 and the dynamic power generation unit are connected together by adhesive to form the dynamic power generation section. In the entire device, there are a total of six dynamic power generation sections, each of which is distributed at an equal angle, that is, the distance between any two dynamic power generation sections is 60°.

[0032] The FEP membrane 10 on the static power generation unit and the nylon membrane 11 on the dynamic power generation unit are directly opposite each other. When the device starts to rotate, the dynamic power generation unit continuously contacts and separates from the static power generation unit under the action of gravity, thereby causing the nylon membrane 11 and the FEP membrane 10 to continuously contact and separate, thus generating current.

[0033] Specifically, when the nylon membrane 11 of the dynamic power generation unit and the FEP membrane 10 of the static power generation unit come into contact with each other, the nylon membrane 11 tends to lose electrons and accumulate charge, while the FEP membrane 10 tends to gain electrons and accumulate negative charge. When the positive charge on the nylon membrane 11 accumulates to a critical value, a transient current is generated; when the negative charge on the FEP membrane 10 accumulates to a certain level, it breaks down the air between the nylon and FEP membranes 10, creating an ionization channel. Electrons flow from the ionization channel to the breakdown electrode, then to the electrostatic breakdown electrode, and back to the external electrode, returning to the nylon membrane 11, thus forming a cycle.

[0034] Furthermore, the present invention also includes a rotating outer shell, the main function of which is to isolate water flow to prevent water flow from entering the interior of the power generation device and to rotate under the action of water flow, thereby driving the internal power generation device to move, so that the dynamic and static power generation units continuously contact and separate, thereby achieving the purpose of power generation.

[0035] This rotary triboelectric nanogenerator, used to harvest fluid mechanical energy, specifically targets the kinetic and potential energy wasted during fluid movement. Its working principle is as follows:

[0036] When this device is placed in a flowing fluid, the fluid's movement generates energy that drives the device to rotate. Under the influence of gravity, the kinetic generator strikes the static triboelectric generator in the stationary generator, creating a continuous contact and separation that produces a constant current. This energy is ultimately stored in a capacitor for further processing. This device converts waste mechanical energy into electrical energy, achieving energy conservation and environmental protection. Furthermore, its low manufacturing cost makes it a promising candidate for widespread application in daily life.

[0037] Example 2

[0038] The difference between the triboelectric nanogenerator in this embodiment and that in Embodiment 1 is that the power generation unit membrane used is not limited to nylon membrane 11 and FEP membrane 10. It can be a membrane material that is easier to gain electrons and easier to lose electrons, or a membrane whose surface has been treated by physical and chemical methods to make it rougher and have a better power generation effect.

[0039] Example 3

[0040] A rotary nano-triboelectric power generation device for harvesting the mechanical energy of water flow is disclosed in this embodiment, which differs from Embodiment 2 in that both the static and dynamic power generation sections have multiple small power generation units. Driven by the water flow, these units continuously contact and separate, generating a larger current and higher power generation efficiency. When all six power generation units are connected in parallel, the maximum current can reach 10μA, and the maximum voltage can reach 100V.

[0041] The specific embodiments described above further illustrate the technical problems, technical solutions, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rotary nano-triboelectric power generation device for harvesting fluid mechanical energy, comprising a static power generation part, a dynamic power generation part, and a shell, wherein the shell is circular, and both the static power generation part and the dynamic power generation part are located inside the shell, characterized in that, The static power generation part includes an insulating base (2), a shaft disk (3), and a static triboelectric nano-power generation unit (7). Six shaft disks (3) are connected to the insulating base (2). The six shaft disks (3) are distributed at equal angles around the insulating base (2), and the distance between two adjacent shaft disks (3) is 60°. The static triboelectric nano-power generation unit (7) includes a support plate (4), an FEP film (10), and a conductive tape (9). The support plate (4), the FEP film (10), and the conductive tape (9) are attached to each other in sequence. The static triboelectric nano-power generation unit (7) is connected to the shaft disk (3) by glue to form the static power generation part. The dynamic power generation part includes a striking rod (1) and a dynamic triboelectric nano-power generation unit (8). The dynamic triboelectric nano-power generation unit (8) includes a support plate (4), a nylon film (11), and a conductive tape (9). The support plate (4), the nylon film (11), and the conductive tape (9) are attached to each other in sequence. The dynamic triboelectric nano-power generation unit (8) is fixedly connected to the striking rod (1) by glue to form a dynamic power generation part. There are six sets of dynamic power generation parts. The six sets of dynamic power generation parts are set on one side of the insulating chassis (2). The dynamic power generation parts are rotatably connected to the insulating chassis (2). The six sets of dynamic power generation parts are distributed at equal angles. The angle between two adjacent sets of dynamic power generation parts is 60°. The FEP film (10) on the static power generation part and the nylon film (11) on the dynamic power generation part are directly opposite each other. When the power generation device is started, the dynamic power generation part and the static power generation part continuously contact and separate, so that the nylon film (11) and the FEP film (10) continuously contact and separate to generate current.

2. The rotary nano-triboelectric power generation device for harvesting fluid mechanical energy according to claim 1, characterized in that, The outer shell includes a left half shell (5) and a right half shell (6), which are bonded and fixed together by waterproof tape to form a rotating float with a sealed installation space inside.

3. A rotary nano-triboelectric power generation device for harvesting fluid mechanical energy according to claim 2, characterized in that, An outer push plate is provided on the outer surface of the outer shell. The outer push plate is arc-shaped and is used to receive external power to drive the outer shell to rotate. An inner push plate is provided inside the outer shell. The inner push plate is used to drive the stationary power generation part to shake so that the stationary power generation part comes into contact with the moving power generation part.

4. A rotary nano-triboelectric power generation device for harvesting fluid mechanical energy according to claim 1, characterized in that, The support plate (4), FEP film (10), nylon film (11) and conductive tape (9) are all made by laser cutting.

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