Micro-nano bubble friction generator coupled with electromagnetic induction effect

Abstract

The invention discloses a micro-nano bubble friction generator coupled with an electromagnetic induction effect, which comprises a power generation assembly, and the power generation assembly is connected with a gas supply assembly and a liquid supply assembly. External energy supply parameters are accurately adjusted by adjusting and controlling the concentration and particle size distribution of micro-nano bubbles and the type and flow of a water medium, and continuous and stable energy collection and output are achieved; the micro-nano bubble flow can be attached to the friction layer in the friction power generation process, and solid material abrasion generated by friction power generation is reduced; a conductor arranged in the friction layer is driven by the micro-nano bubble flow to generate magnetic induction line cutting motion to excite induced charges, a dynamic cooperation mechanism is formed with a contact electrification effect, and the energy conversion efficiency and the power generation performance are remarkably improved; micro-nano bubbles showing charges are attached to the surface of the solid friction layer, the surface charge density is increased and the local electric field intensity is enhanced through the polarization effect of water molecules on the interface of the micro-nano bubbles, and then the charge transfer amount and the induction efficiency during contact electrification are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power generation equipment, and in particular to a micro-nano bubble friction generator coupled with electromagnetic induction. Background Art

[0002] The triboelectric nanogenerator (TENG) is a novel energy harvesting technology based on the triboelectric effect and electrostatic induction. It can convert mechanical energy in the environment (such as human motion, vibration, wind energy, and water flow) into electrical energy. In recent years, with the growing demand for distributed energy, the TENG has become a hot topic in the energy field due to its simple structure and strong environmental adaptability.

[0003] In the prior art, the disclosure of an invention patent application with application number 201810070258.7 discloses a triboelectric power generation device comprising a first component and a second component disposed opposite each other; the first component comprising a first conductive layer; the second component comprising a second conductive layer; the first component further comprising: a first friction layer, wherein at least one protruding structure on the lower surface of the first friction layer intersects with at least one protruding structure on the upper surface of the second conductive layer; and / or the second component further comprising: a second friction layer, wherein at least one protruding structure on the lower surface of the first conductive layer intersects with at least one protruding structure on the upper surface of the second friction layer; wherein the materials of the first friction layer and the second friction layer have different electron gain and loss capacities. Under the action of an external force, the first and second components undergo relative motion, causing the first and second components to repeatedly contact, rub, and separate at the friction surface of at least one protruding structure, which is located on the side of the at least one protruding structure, thereby forming induced charges on the first and second conductive layers.

[0004] In the prior art, the public description of utility model patent application No. 202420650701.9 discloses a triboelectric power generation device for ocean energy harvesting based on a TENG. The device comprises: an upper friction plate and a lower friction plate; the upper and lower friction plates are fixedly connected by a frame-shaped baffle, forming an internal cavity; a triboelectric nano-power generation component is installed in the internal cavity; the triboelectric nano-power generation component comprises a solid friction portion and a liquid friction portion. The solid friction portion comprises a power generation electrode and a solid friction material; the power generation electrode is attached to the opposing sides of the upper and lower friction plates; the solid friction material covers the power generation electrode. This device can harvest low-frequency mechanical energy and is suitable for offshore energy harvesting. It can also provide self-powered marine equipment, allowing it to operate at sea for longer periods without polluting the marine environment.

[0005] However, the above patents all have the following problems: 1. Existing friction power generation devices rely solely on the randomness of external mechanical excitation, resulting in large fluctuations in energy output, unstable energy collection, and difficulty in regulation; 2. Existing friction power generation devices use a friction layer, and repeated contact and separation during the power generation process will cause its surface microstructure to wear, and the charge density will decrease over time, thereby reducing the power generation performance; 3. Existing friction power generation devices have low output charge density and low power generation performance; 4. Existing friction power generation devices suffer from energy loss due to insufficient mechanical excitation energy capture, resulting in limited energy conversion efficiency and low utilization rate. Summary of the Invention

[0006] The purpose of the present invention is to provide a micro-nano bubble friction generator coupled with electromagnetic induction to solve the above problems.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] The present invention provides a micro-nano bubble friction generator coupled with electromagnetic induction, comprising a power generation component, wherein the power generation component is connected to an air supply component and a liquid supply component;

[0009] The power generation assembly includes an operating pipe, and two upper and lower friction assemblies are connected to the pipe body of the operating pipe, one side of the friction assembly is placed inside the operating pipe, and the other side is placed outside the operating pipe. A coupling electromagnetic induction assembly is provided on the outside of the friction assembly, and the coupling electromagnetic induction assembly is connected to the operating pipe;

[0010] The gas supply assembly includes a high-pressure gas cylinder and a hydrophobic polymer PTFE membrane, the high-pressure gas cylinder and the operating pipeline are connected through a connecting pipe 1, and the hydrophobic polymer PTFE membrane is placed in the operating pipeline and at the connection between the operating pipeline and the connecting pipe 1;

[0011] The liquid supply component includes a fan and a water tank. The air outlet of the fan is connected to the air inlet at the top of the water tank through connecting pipe 2, the liquid outlet of the water tank is connected to the liquid inlet of the operating pipeline through connecting pipe 3, and the liquid inlet of the water tank is connected to the liquid outlet of the operating pipeline through connecting pipe 4.

[0012] Furthermore, the coupled electromagnetic induction component includes two power generation bodies and an outer convex shell, the outer convex shell is connected to the operating pipeline, the power generation body is U-shaped and arranged inside the outer convex shell, the friction assembly is placed inside the power generation body, and the power generation body and the friction assembly are connected by a compression spring, the two power generation bodies are positive and negative magnetic poles respectively, and each power generation body is configured with positive and negative magnetic poles to form transverse magnetic lines of force.

[0013] Furthermore, the connecting pipe 1 is connected to a gas flow meter 1 and a control valve 1.

[0014] Furthermore, the second connecting pipe is connected to a second gas flow meter and a second control valve.

[0015] Furthermore, the connecting pipe three is connected to a liquid flow meter.

[0016] Furthermore, the hydrophobic polymer PTFE membrane is placed on one end close to the connecting pipe three.

[0017] Furthermore, the friction assembly includes a friction layer and a copper electrode. The friction layer is a solid friction material, such as PTFE. The copper electrode is embedded in the friction layer, and the copper electrode is connected to an external circuit.

[0018] Compared with the prior art, the present invention has the following beneficial technical effects:

[0019] The present invention precisely adjusts external energy supply parameters by regulating the concentration, particle size distribution, water medium type, and flow rate of micro-nano bubbles to achieve continuous and stable energy collection and output.

[0020] The micro-nano bubble flow as the liquid friction part in the present invention will adhere to the friction layer during the triboelectric generation process, reducing the wear of solid materials caused by triboelectric generation;

[0021] The present invention uses micro-nano bubble flow to drive the built-in conductor of the friction layer to generate magnetic flux cutting motion to excite induced charges, forming a dynamic synergistic mechanism with the contact electrification effect, significantly improving energy conversion efficiency and power generation performance;

[0022] The present invention attaches charged micro-nano bubbles to the surface of the solid friction layer, utilizes the polarization effect of water molecules at its interface to increase the surface charge density and strengthen the local electric field strength, thereby improving the charge transfer amount and induction efficiency during contact electrification. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings.

[0024] Figure 1 Schematic diagram of the structure of the micro-nano bubble friction generator coupled with electromagnetic induction of the present invention;

[0025] Figure 2 A cross-sectional view of the micro-nano bubble friction generator coupled with electromagnetic induction according to the present invention;

[0026] Figure 3 Schematic diagram of the friction component structure;

[0027] Explanation of the accompanying symbols: 1. Operating pipeline; 2. Friction assembly; 201. Friction layer; 202. Copper electrode; 3. High-pressure gas cylinder; 4. Hydrophobic polymer PTFE membrane; 5. Connecting pipe one; 6. Fan; 7. Water tank; 8. Connecting pipe three; 9. Connecting pipe four; 10. Power generation body; 11. Compression spring; 12. Outer convex shell; 13. Gas flowmeter one; 14. Control valve one; 15. Gas flowmeter two; 16. Control valve two; 17. Liquid flowmeter; 18. Connecting pipe two. DETAILED DESCRIPTION

[0028] like Figure 1-3 As shown, a micro-nano bubble friction generator coupled with electromagnetic induction includes a power generation component, to which an air supply component and a liquid supply component are connected.

[0029] The power generation assembly includes an operating pipeline 1, to which two upper and lower friction assemblies 2 are connected. One side of the friction assembly 2 is placed inside the operating pipeline 1, and the other side is placed outside the operating pipeline 1. A coupling electromagnetic induction assembly is provided on the outside of the friction assembly 2, and the coupling electromagnetic induction assembly is connected to the operating pipeline 1. The friction assembly 2 includes a friction layer 201 and a copper electrode 202. The friction layer 201 is made of a solid friction material such as PTFE. The copper electrode 202 is embedded in the friction layer 201. The copper electrode 202 is connected to the external circuit and does not contact the liquid friction portion. The friction layer 201 is made of PTFE, and the liquid friction portion is a micro-nano bubble flow. When the micro-nano bubble flow rubs against the solid material, it generates an electric potential difference on the copper electrode 202, generating electricity through the circuit.

[0030] The coupled electromagnetic induction component includes two power generation bodies 10 and an outer convex shell 12. The outer convex shell 12 is connected to the operating pipeline 1. The power generation body 10 is U-shaped and arranged inside the outer convex shell 12. The friction assembly is placed in the power generation body 10, and the power generation body 10 and the friction assembly 2 are connected by a compression spring 11. The two power generation bodies are respectively positive and negative magnetic poles. Each power generation body 10 is configured with positive and negative magnetic poles to form transverse magnetic lines of force.

[0031] The generator 10, coupled to electromagnetic induction, is equipped with a positive magnetic pole, while the generator 10 on the opposite side of the operating pipeline 1 is equipped with a negative magnetic pole, forming vertical magnetic flux lines. The micro-nano bubble flow cuts through these magnetic flux lines, exciting the friction layer 201 to generate electricity, and the magnetic flux lines simultaneously contribute to the accumulation of charge. The generator 10, equipped with both positive and negative magnetic poles, forms transverse magnetic flux lines. Under the hydraulic pressure of the micro-nano bubble flow and the compression of the compression spring 11, the friction layer 201 performs a limited transverse cutting motion through the internal grooves of the generator 10, generating charge. Guided by the magnetic field, the accumulated charge is output through an external circuit.

[0032] The gas supply assembly includes a high-pressure gas cylinder 3 and a hydrophobic polymer PTFE membrane 4. The high-pressure gas cylinder 3 and the operating pipeline 1 are connected through a connecting pipe 5, and a gas flow meter 13 and a control valve 14 are connected to the connecting pipe 5. The hydrophobic polymer PTFE membrane 4 is placed in the operating pipeline 1 and at the connection between the operating pipeline 1 and the connecting pipe 5. The high-pressure gas cylinder 3 is connected to the air inlet of the operating pipeline 1 through the gas flow meter 13 and the control valve 14. The air intake parameters are precisely controlled by linking and adjusting the control valve 14 and the gas flow meter 13 to achieve coordinated regulation of the size and concentration of micro-nano bubbles. Through the hydrophobic polymer PTFE membrane 4, the gas is sheared and broken through the membrane pores under the action of the pressure difference between the gas and liquid phases, forming micron / nano bubbles (diameter 1μm-100nm).

[0033] The liquid supply assembly includes a fan 6 and a water tank 7. The air outlet of the fan 6 is connected to the air inlet at the top of the water tank 7 via a second connecting pipe 18. The second connecting pipe 18 is connected to a gas flowmeter 15 and a second control valve 16. The liquid outlet of the water tank 7 is connected to the liquid inlet of the operating pipeline 1 via a third connecting pipe 8. The third connecting pipe 8 is connected to a liquid flowmeter 17. The liquid inlet of the water tank 7 is connected to the liquid outlet of the operating pipeline 1 via a fourth connecting pipe 9. The third connecting pipe 8 and the fourth connecting pipe 9 are connected to the water tank 7 and the operating pipeline 1, respectively, to form a reflux. The inlet medium parameters are precisely controlled by adjusting the gas flowmeter 15, the control valve 16, and the liquid flowmeter 17 in a coordinated manner, and a micro-nano bubble water flow is generated through gas-liquid mixing.

[0034] The hydrophobic polymer PTFE membrane 4 is placed on one end close to the connecting pipe 3 8.

[0035] The action process of the present invention is as follows:

[0036] When in use, open the fan 6 to introduce external air, which enters the air inlet of the water tank 7 through the gas flow meter 2 15 and the control valve 2 16. The air is pressed out of the liquid in the water tank 7 and is pressed into the liquid inlet of the operation pipeline 1 through the liquid outlet of the water tank 7 and the regulation of the liquid flow meter 17. By adjusting the liquid inlet parameters through the gas flow meter 2 15, the control valve 2 16 and the liquid flow meter 17, the water flow through the operation pipeline 1 will return to the water tank 7 through the connecting pipe 4 9 to form a cycle. At this time, the friction layer 201 cuts the magnetic flux lines with the movement of the liquid to generate initial charges. At the same time, friction and transverse magnetic flux lines cutting movement are generated under the action of hydraulic pressure and compression spring 11, and the charges are gathered under the action of the magnetic field. The electric energy is collected and output through an external circuit. The high-pressure gas cylinder 3 is then opened, and the gas enters the air inlet of the operating pipeline 1 through a gas flow meter 13 and a control valve 14, and generates a micro-nano bubble water flow through the hydrophobic polymer PTFE membrane 4. During this period, the gas flow meter 13 and the control valve 14 are adjusted to control the size and concentration of the micro-nano bubble flow. At this time, the surface charge density of the friction layer 201 is increased due to the attachment of micro-nano bubbles. At the same time, the micro-nano bubble flow cuts the vertical magnetic flux lines and the horizontal magnetic flux lines of the friction layer 201 to form a motion coupling, which synergistically generates additional charges. The charges gathered under the guidance of the magnetic field enhance the local field strength, and finally the electric energy is exported through the external circuit.

[0037] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A micro-nano bubble friction generator coupled with electromagnetic induction, characterized by: It includes a power generation component, and the power generation component is connected to an air supply component and a liquid supply component; The power generation component comprises an operating pipeline (1), and two upper and lower friction components (2) are connected to the pipe body of the operating pipeline (1), one side of the friction component (2) is placed inside the operating pipeline (1), and the other side is placed outside the operating pipeline (1), and a coupling electromagnetic induction component is provided on the outside of the friction component (2), and the coupling electromagnetic induction component is connected to the operating pipeline (1); The gas supply assembly comprises a high-pressure gas cylinder (3) and a hydrophobic polymer PTFE membrane (4); the high-pressure gas cylinder (3) and the operating pipeline (1) are connected via a connecting pipe (5); the hydrophobic polymer PTFE membrane (4) is placed in the operating pipeline (1) and at the connection between the operating pipeline (1) and the connecting pipe (5); The liquid supply assembly comprises a fan (6) and a water tank (7), the air outlet of the fan (6) is connected to the air inlet at the top of the water tank (7) via a second connecting pipe (18), the liquid outlet of the water tank (7) is connected to the liquid inlet of the operating pipeline (1) via a third connecting pipe (8), and the liquid inlet of the water tank (7) is connected to the liquid outlet of the operating pipeline (1) via a fourth connecting pipe (9).

2. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The coupled electromagnetic induction component comprises two power generation bodies (10) and an outer convex shell (12), wherein the outer convex shell (12) is connected to the operating pipeline (1), and the power generation body (10) is arranged in a U-shape inside the outer convex shell (12), and the friction component is placed inside the power generation body (10), and the power generation body (10) and the friction component (2) are connected by a compression spring (11), and the two power generation bodies are respectively a positive magnetic pole and a negative magnetic pole, and each power generation body (10) is configured with positive and negative magnetic poles to form transverse magnetic flux lines.

3. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The connecting pipe 1 (5) is connected to a gas flow meter 1 (13) and a control valve 1 (14).

4. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The second connecting pipe (18) is connected to a second gas flow meter (15) and a second control valve (16).

5. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The connecting pipe 3 (8) is connected to a liquid flow meter (17).

6. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The hydrophobic polymer PTFE membrane (4) is placed on one end close to the connecting pipe three (8).

7. The micro-nano bubble friction generator coupled with electromagnetic induction according to claim 1, characterized in that: The friction component (2) comprises a friction layer (201) and a copper electrode (202); the friction layer (201) is a solid friction material, such as PTFE; the copper electrode (202) is embedded in the friction layer (201); and the copper electrode (202) is connected to an external circuit.

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