Friction power generation device driven by pipeline fluid

Abstract

The utility model relates to a friction power generation device driven by pipeline fluid, which comprises a Tesla turbine module and a friction module, the Tesla turbine module comprises a turbine shell and a turbine, and the turbine shell is provided with a circulation channel; the friction module comprises a friction device shell and a rabbit hair fixing disc, an electrode disc and a PTFE film located between the electrode disc and the rabbit hair fixing disc are fixedly connected into the friction device shell, kinetic energy can be provided by flowing liquid such as tap water, and when the flowing liquid enters the Tesla turbine device through a pipeline, the flowing liquid can flow into the Tesla turbine device through the pipeline. Due to the viscous effect of liquid, the turbine rotates in the linear speed direction the same as the liquid speed direction, torque is transmitted to the friction power generation module which is coaxially connected through the rotating shaft, the rabbit hair friction rotor rotates under the driving of the rotating shaft and rubs with the PTFE friction stator, charge transfer is generated through contact friction between rabbit hair and PTFE, and the friction power generation module is used for generating power. And the electric energy is conditioned and processed by the circuit collection module to output available electric energy.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation, in particular to a friction power generation device driven by pipeline fluid. Background Art

[0002] In China, pipelines for transporting liquids such as tap water and oil are a very important infrastructure and are regarded as necessities of life. Among them, tap water supply covers cities and many rural areas, providing residents with water for living, drinking and industrial use. The Chinese government has been committed to improving the quality and coverage of tap water supply, investing a lot of money in the construction and renovation of tap water facilities to meet the people's growing water demand. Since the water source comes from some remote wild areas, it is necessary to establish a pipeline system of a certain length to transport the water from the water source to where it is needed through pipelines. In the process of transporting tap water in the wild pipeline, factors such as water quality monitoring, pipeline maintenance and management need to be considered, so a large number of sensors need to be deployed for pipeline status monitoring.

[0003] The energy of existing sensors for monitoring outdoor tap water mainly comes from batteries, which need to be replaced regularly, resulting in increased labor costs. Failure to replace the batteries in a timely manner can easily cause battery damage and environmental pollution. Therefore, it is necessary to design a device that can convert the mechanical energy of pipeline fluid into electrical energy to replace batteries to realize the power supply of sensors. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a pipeline fluid driven friction power generation device, which collects pipeline fluid mechanical energy through the friction electrification principle and converts it into electrical energy output, thereby solving the problem of power supply difficulty for field pipeline status sensors.

[0005] The utility model is realized by the following technical scheme, and provides a friction power generation device driven by pipeline fluid, comprising a Tesla turbine module and a friction module, wherein the Tesla turbine module comprises a closed turbine housing and a turbine rotatably connected in the turbine housing, wherein the turbine housing is provided with a flow channel for radial flow of the turbine and the flow channel is eccentrically arranged with respect to the center of the turbine; wherein the friction module comprises a friction device housing and a rabbit hair fixing disk axially connected in the friction device housing, wherein an electrode disk and a PTFE film located between the electrode disk and the rabbit hair fixing disk are fixedly connected in the friction device housing, wherein a plurality of circumferentially uniformly distributed fan-shaped rabbit hair areas are arranged on a side of the rabbit hair fixing disk close to the PTFE film, rabbit hair is fixedly connected to the fan-shaped rabbit hair areas, and a plurality of circumferentially uniformly distributed fan-shaped copper foils are fixedly connected on a side of the electrode disk close to the PTFE film; and wherein the turbine is fixedly connected to the rabbit hair fixing disk through a rotating shaft.

[0006] In this scheme, the flowing liquid enters the turbine casing through the flow channel, and drives the turbine to rotate by flowing through the turbine disc, thereby driving the rotation of the shaft; the other end of the shaft is connected to the rabbit hair fixing plate, which has a plurality of symmetrical fan-shaped rabbit hair areas. The rotation of the shaft drives the relative friction between the rabbit hair and the PTFE film arranged on the electrode plate to generate charge transfer. The charge is collected by the electrode plate containing a plurality of fan-shaped copper foils and output to two ports to realize power generation.

[0007] As an optimization, the turbine comprises a plurality of stacked discs, which is convenient for processing and can appropriately increase the viscosity of the liquid.

[0008] As an optimization, the turbine is provided with a plurality of circular holes arranged circumferentially, so as to increase the adhesion and viscosity between the turbine and the liquid, so as to facilitate the rotation of the turbine.

[0009] As an optimization, six fan-shaped rabbit hair areas are provided on one side of the rabbit hair fixing disk, and twelve fan-shaped copper foils are fixedly connected to one side of the electrode disk. The six fan-shaped rabbit hair areas and the twelve fan-shaped copper foils rotate relative to each other to realize the generation of alternating current.

[0010] As an optimization, the length of the rabbit hair is 6-12 mm, so as to achieve the best power generation effect.

[0011] As an optimization, the turbine housing includes a turbine housing with a circular through hole and a turbine end cover bolted to both ends of the turbine housing, so as to realize the assembly of the turbine housing and facilitate the installation of internal parts.

[0012] As an optimization, the friction device housing includes a friction device housing with a circular countersunk hole and a friction device housing end cover bolted to the friction device housing, so as to realize the assembly of the turbine housing and facilitate the installation of internal parts.

[0013] A method for using a pipeline fluid-driven friction power generation device comprises the following steps:

[0014] a. The flowing liquid enters the turbine housing through the flow channel and passes through the disc of the turbine. Due to the viscosity of the liquid, energy loss occurs and part of the kinetic energy of the liquid is converted into the kinetic energy of the turbine, thereby driving the turbine to rotate and then driving the shaft to rotate;

[0015] b. The other end of the rotating shaft is connected to a rabbit hair fixing disk, which has 6 symmetrical fan-shaped rabbit hair areas. The rotation of the rotating shaft drives the rabbit hair to rub against the PTFE film set on the electrode disk to generate charge transfer. The charge is collected by the electrode disk containing 12 fan-shaped copper foils and output to two ports.

[0016] c. Finally, the circuit collection device collects the charges, rectifies the AC power output from multiple ports into DC power through the rectification circuit, and charges the capacitor after shaping and filtering.

[0017] The beneficial effects of the utility model are as follows: a pipeline fluid-driven friction power generation device of the utility model realizes the conversion of liquid kinetic energy into electrical energy, and can utilize low-cost fluid media, such as sewage, river water, stream water, etc., to realize the regeneration of clean energy. The power generation efficiency of the device is improved by parallel modular setting of the turbine and the friction device, and the friction between rabbit hair or other animal hair and PTFE film is used to generate electricity. The production cost is low, there is no environmental pollution and low wear. The networked layout in agricultural or industrial production can greatly reduce the cost of manual battery replacement and reduce battery consumption.

[0018] The device has a compact structure and has little impact on the detection environment. It uses acrylic materials that are insensitive to environmental humidity and have low maintenance costs. It is used in smart homes, data collection for river monitoring, sewage reuse and other aspects. It can improve energy utilization efficiency and reduce energy device costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is an explosion diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the utility model;

[0021] Figure 3 This is a front view of the interior of the Tesla turbine module of the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion of the friction module of the utility model;

[0023] Figure 5 This is a schematic diagram of power generation of the rabbit hair fixing disk, PTFE film and electrode disk of the utility model;

[0024] Figure 6 This is the rectifier circuit diagram of the utility model;

[0025] As shown in the figure:

[0026] 1. Friction device housing, 2. Friction device housing end cover, 3. Bearing, 4. Rotating shaft, 5. Nut, 6. Turbine end cover, 7. Bolt, 8. Sealed bearing, 9. Flow channel, 10. Turbine housing, 11. Turbine, 12. Rabbit hair fixing plate, 13. Rabbit hair, 14. PTFE film, 15. Electrode plate, 16. Acrylic fixing plate. DETAILED DESCRIPTION

[0027] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0028] like Figures 1 to 6 As shown, a friction power generation device driven by pipeline fluid of the utility model comprises a Tesla turbine module and a friction module.

[0029] The Tesla turbine module includes a sealed turbine housing and a turbine 11 rotatably connected to the turbine housing. The turbine housing includes a turbine shell 10 with a circular through hole and a turbine end cover 6 bolted to both ends of the turbine shell 10. The sealed turbine housing is realized by the turbine end covers 6 at both ends.

[0030] The rotating shaft 4 passes through the two turbine end covers 6 and is provided with bearings and sealing rings at the passing position. The turbine 11 is located in the circular through hole and its center is fixed to the rotating shaft 4 , so that the kinetic energy of the rotation of the turbine 11 is transmitted through the rotating shaft 4 .

[0031] The turbine 11 is provided with a plurality of circular holes arranged circumferentially, so as to increase the force of the water flow driving the turbine to rotate.

[0032] The turbine 11 includes a plurality of stacked discs. The discs are flat and adjacent discs fit closely together. In this embodiment, the turbine 11 is formed by stacking a plurality of acrylic discs. The diameter of the acrylic discs is 150 mm and the thickness is 1 mm.

[0033] The turbine housing is provided with a flow channel 9 for radial flow along the turbine 11, and the flow channel 9 is eccentrically arranged with respect to the center of the turbine 11; Figure 1 , 3 As shown, the circulation channel 9 includes a liquid inlet pipe connected to the upper end of the turbine housing 10 and a liquid outlet pipe connected to the lower end of the turbine housing 10, so as to be tangential to the turbine and drive the turbine to rotate.

[0034] The friction module includes a friction device housing and a rabbit hair fixing plate 12 axially connected to the friction device housing. A cylindrical cavity is arranged in the friction device housing. The rabbit hair fixing plate 12 is arranged in the cylindrical cavity. The friction device housing includes a friction device shell 1 with a circular countersunk hole and a friction device shell end cover 2 bolted to the friction device shell 1. After removing the friction device shell end cover 2, the internal components can be disassembled and assembled.

[0035] The rotating shaft 4 passes through the end cover 2 of the friction device housing, and a bearing and a sealing ring are installed at the passing point to achieve the sealing of the friction device housing.

[0036] The rabbit hair fixing disk 12 is a circular disk and is fixedly connected to the rotating shaft 4 , so that the turbine 11 is fixedly connected to the rabbit hair fixing disk 12 through the rotating shaft 4 .

[0037] An electrode disk 15 and a PTFE film 14 located between the electrode disk 15 and the rabbit hair fixing disk 12 are fixedly connected in the outer shell of the friction device. A plurality of circumferentially uniformly distributed fan-shaped rabbit hair areas are provided on one side of the rabbit hair fixing disk 12 close to the PTFE film 14. Six fan-shaped rabbit hair areas are provided on one side of the rabbit hair fixing disk 12. Rabbit hair 13 is fixedly connected to the fan-shaped rabbit hair areas. The length of the rabbit hair is 6-12 mm. In this embodiment, the length of the rabbit hair is 9 mm. In this embodiment, rabbit hair with skin is cut into corresponding fan-shaped shapes and fixed on the rabbit hair fixing disk 12.

[0038] An acrylic fixing plate 16 is fixed to the bottom of the circular countersunk hole of the friction device housing 1. The acrylic fixing plate, the electrode plate and the PTFE film are fixed together. A plurality of circumferentially uniformly distributed sector-shaped copper foils are fixed to one side of the electrode plate 15 close to the PTFE film 14; in this embodiment, 12 sector-shaped copper foils are fixed to one side of the electrode plate 15. Two adjacent sector-shaped copper foils form a pair of independent layer electrodes. The sector-shaped copper foils are connected together in a clockwise direction, and two sector-shaped copper foils separated by one sector-shaped copper foil are connected together. In this way, multiple pairs of electrodes are connected to form two output ports.

[0039] The PTFE film 14 is in a circular shape, fitted and covered on the fan-shaped copper foil, and the rabbit hair and the PTFE film 14 are fitted and rubbed. PTFE is also called polytetrafluoroethylene (Polytetrafluoroethylene), also known as Teflon, commonly known as the "plastic king". It is a high molecular polymer made by polymerization of tetrafluoroethylene as a monomer. The chemical formula is (C2F4)n. It has excellent heat resistance and cold resistance and can be used for a long time at -180~260ºC. This material is resistant to acids and alkalis, and various organic solvents, and is almost insoluble in all solvents. At the same time, polytetrafluoroethylene has the characteristics of high temperature resistance, and its friction coefficient is extremely low, so the friction between the PTFE film 14 and the rabbit hair can be reduced. The friction and wear between the rabbit hair and the film are small, and the rabbit hair has good moisture resistance, which increases the life of the friction device.

[0040] like Figure 5 As shown, the triboelectric charging between the rabbit hair and the PTFE film generates positive electrostatic charge on the fur and negative charge on the PTFE surface. Due to the law of charge conservation, the total triboelectric charge on the rabbit hair part and the PTFE is equal. The stages in the figure represent independent working cycles. As the hair disk and the electrode disk rotate relative to each other, the free charge on the electrode will be redistributed between the two sets of electrodes through the external load to balance the change in potential difference according to electrostatic induction. Due to the periodic structure, the periodic transfer charge induced between the two sets of electrodes will produce an AC output.

[0041] like Figure 6As shown, the circuit collection module includes a rectifier bridge, a Schottky diode, a capacitor, an insulated wire, a triode, and an inductor. The insulated wire is connected to the above-mentioned two output ports, the rectifier bridge rectifies the alternating current generated by friction into direct current, the output end of the rectifier bridge is connected in parallel with a ceramic capacitor, which acts as a filter, the triode is connected in parallel with the Schottky, one end of which is connected to the positive output end of the rectifier bridge to shape the direct current, and a Schottky diode is added between one end and the negative end of the rectifier bridge to prevent the rectifier bridge from failing to rectify, and an inductor is connected in series at one end of the positive pole of the rectifier bridge for shaping. Finally, the shaped direct current is used to charge the electrolytic capacitor, and then the sensor is powered.

[0042] A method for using a pipeline fluid-driven friction power generation device comprises the following steps:

[0043] a. The flowing liquid enters the turbine housing through the flow channel 9 and passes through the disc of the turbine 11. Due to the viscosity of the liquid, energy loss is caused, and part of the liquid kinetic energy is converted into the kinetic energy of the turbine, thereby driving the turbine 11 to rotate, and then driving the shaft 4 to rotate; the speed of the shaft 4 is different when the liquid flow rate and flow rate are different. The greater the liquid flow rate or flow rate, the greater the speed of the shaft 4.

[0044] b. The other end of the rotating shaft 4 is connected to the rabbit hair fixing plate 12. The friction device housing 1 and the friction device housing end cover 2 seal the friction device, which is beneficial to moisture-proof. The rabbit hair 13 also has good moisture-proof properties.

[0045] The rabbit hair fixing disk 12 has 6 symmetrical fan-shaped rabbit hair areas. The rabbit hair 13 with a hair length of 9 mm is pasted together with the rabbit hair fixing disk 12, and the rabbit hair fixing disk 12 is fixed to the rotating shaft 4. The rotation of the rotating shaft 4 drives the rabbit hair 13 and the PTFE film 14 arranged on the electrode disk 15 to generate charge transfer by relative friction. The charge is collected by the electrode disk 15 containing 12 fan-shaped copper foils and output to two ports; the friction and wear between the rabbit hair 13 and the PTFE film 14 is small, and the moisture-proof performance is good.

[0046] c. Finally, the circuit collection device collects the charges, and the AC power output from multiple ports is rectified into DC power through the rectifier circuit. After shaping and filtering, the capacitor is charged, and the capacitor outputs the charge to the sensor, thus achieving self-power supply.

[0047] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A friction power generation device driven by pipeline fluid, characterized in that: It comprises a Tesla turbine module and a friction module, wherein the Tesla turbine module comprises a sealed turbine housing and a turbine (11) rotatably connected to the turbine housing, wherein the turbine housing is provided with a flow channel (9) for radial flow along the turbine (11), and the flow channel (9) is eccentrically arranged with respect to the center of the turbine (11); The friction module comprises a friction device housing and a rabbit hair fixing disk (12) axially connected to the friction device housing, an electrode disk (15) and a PTFE film (14) located between the electrode disk (15) and the rabbit hair fixing disk (12) are fixedly connected to the friction device housing, a side of the rabbit hair fixing disk (12) close to the PTFE film (14) is provided with a plurality of circumferentially uniformly distributed fan-shaped rabbit hair areas, rabbit hair (13) is fixedly connected to the fan-shaped rabbit hair areas, and a side of the electrode disk (15) close to the PTFE film (14) is fixedly connected to a plurality of circumferentially uniformly distributed fan-shaped copper foils; The turbine (11) is fixedly connected to the rabbit hair fixing disk (12) via a rotating shaft (4).

2. A pipeline fluid driven friction power generation device according to claim 1, characterized in that: The turbine (11) comprises a plurality of stacked disks.

3. The pipeline fluid driven friction power generation device according to claim 1, characterized in that: The turbine (11) is provided with a plurality of circular holes arranged circumferentially.

4. The pipeline fluid driven friction power generation device according to claim 1, characterized in that: One side of the rabbit hair fixing disk (12) is provided with six sector-shaped rabbit hair areas, and one side of the electrode disk (15) is fixedly connected with 12 sector-shaped copper foils.

5. The pipeline fluid driven friction power generation device according to claim 1, characterized in that: The length of the rabbit hair is 6-12 mm.

6. The pipeline fluid driven friction power generation device according to claim 1, characterized in that: The turbine housing comprises a turbine housing (10) with a circular through hole and a turbine end cover (6) bolted to both ends of the turbine housing (10).

7. The pipeline fluid driven friction power generation device according to claim 1, characterized in that: The friction device housing comprises a friction device housing (1) with a circular countersunk hole and a friction device housing end cover (2) bolted to the friction device housing (1).

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