Piezoelectric water purifying device driven by solar energy

Abstract

The utility model relates to the technical field of water treatment, in particular to a solar-driven piezoelectric water purification device, which comprises a solar panel, a water pump, a reservoir, a water guide pipe and a piezoelectric catalytic material. The solar panel is directly connected with the water pump through positive and negative wires to drive the water pump to pump water in the reservoir into the water guide pipe; a dripping hole is formed in the tail end of the water guide pipe, and water flow freely falls to impact the piezoelectric catalytic material; the piezoelectric catalytic material is laid on the water surface, such as a polyvinylidene fluoride (PVDF)-based porous membrane, the upper surface and the lower surface of the piezoelectric catalytic material are connected with electrodes, water flow impacts the surface of the membrane to generate a piezoelectric effect, persulfate (PMS) is activated to generate sulfate free radicals and hydroxyl free radicals, and the sulfate free radicals and the hydroxyl free radicals are used for degrading organic pollutants in water. The solar water purifier has the advantages that water circulation is driven by solar energy, and a high-efficiency and low-energy-consumption water purification process is realized by combining a catalytic function of a piezoelectric material; the device is simple in structure, does not need external energy supply, and is suitable for remote areas or resource-deficient scenes.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, and in particular to a solar-driven piezoelectric water purification device. Background Technology

[0002] When working or traveling outdoors, especially during extended wilderness expeditions or specialized operations, the drinking water carried by individuals is often heavy and limited, impacting both efficiency and duration. To address the issue of drinking water in the wild, many outdoor enthusiasts choose to carry water purification devices. However, existing portable water purifiers largely rely on physical filtration (such as activated carbon and ultrafiltration membranes), which, while removing suspended solids and some microorganisms, cannot effectively degrade organic pollutants (such as pesticides, drug residues, and industrial chemicals). These organic pollutants can pose long-term health risks and are difficult to treat using traditional water purification technologies in the wilderness. Furthermore, existing water purification devices typically depend on external water sources, making them unusable in water-scarce environments, thus limiting their application scenarios.

[0003] A portable outdoor water purifier disclosed in Chinese patent CN211712784U can intercept suspended solids and particulate matter through filter screens and combined filter elements (such as activated carbon and ultrafiltration membranes), but it cannot degrade organic pollutants in water (such as pesticides and drug residues), and it needs to be used in places with water sources, which limits its application scenarios.

[0004] The disadvantages of current portable outdoor water purifiers are:

[0005] 1. Traditional water purification technologies typically rely on external electrical energy or chemical reagents, resulting in high operating costs and making them unsuitable for remote areas or scenarios without power grid coverage.

[0006] 2. Using chemical oxidation methods (such as chlorine disinfection) may produce harmful byproducts, causing secondary pollution. Summary of the Invention

[0007] To address the aforementioned issues, this invention discloses a solar-driven piezoelectric water purification device. By using solar energy to drive water circulation and combining it with piezoelectric catalysis technology, it can efficiently degrade organic pollutants in water, providing safe and clean drinking water for outdoor enthusiasts.

[0008] A solar-powered piezoelectric water purification device includes a cylinder with a water pump inside and a water pipe connected above the pump. The top of the cylinder is connected to a cover plate via a pivot, and a solar panel is covered on top of the cover plate. The solar panel is connected to the water pump via positive and negative wires. Inside the cylinder, there is a support plate that runs diagonally upwards around the cylinder wall, and a water purification material, which is a piezoelectric material, is placed on top of the support plate.

[0009] Furthermore, the top of the water pipe is connected to a drip hole, through which water flows freely downwards.

[0010] Furthermore, the conductor material of the positive and negative wires is tin-plated copper wire, and silicone is used as the insulating layer.

[0011] Furthermore, the piezoelectric material is a PVDF-based porous membrane laid on the water surface, with electrodes connected to its upper and lower surfaces.

[0012] Furthermore, the electrode is made of a conductive material, including copper, silver, or graphene, and the electrode surface is waterproofed; the electrode is designed to be pluggable and connected to the upper and lower surfaces of the piezoelectric material respectively.

[0013] Furthermore, a handle is installed on the outer wall of the cylinder.

[0014] This utility model has the following advantages:

[0015] 1. This solar-powered piezoelectric water purification device uses a solar panel and a water pump. The solar panel is directly connected to the water pump via positive and negative wires, driving the pump to draw water from a cylinder into a water pipe. The end of the water pipe has drip holes through which water flows freely, impacting a PVDF-based porous membrane laid on the water surface. This generates a piezoelectric effect, activating persulfate (PMS) to produce free radicals, thus degrading organic pollutants in the water. This device requires no external power source, relying solely on solar energy to drive water circulation, making it energy-efficient and environmentally friendly. It is suitable for outdoor locations without grid coverage.

[0016] 2. This solar-powered piezoelectric water purification device utilizes a PVDF-based porous membrane with electrodes connected to its upper and lower surfaces. Water flow impacts the membrane surface, generating a piezoelectric effect that activates the PMS to produce sulfate radicals (SO4⁻·) and hydroxyl radicals (·OH), effectively degrading organic pollutants in the water (such as pesticides and drug residues). Compared to traditional water purification technologies, this device requires no chemical reagents, avoids secondary pollution, and offers higher treatment efficiency.

[0017] 3. This solar-powered piezoelectric water purification device features a modular design, allowing for individual replacement of the PVDF-based porous membrane and electrodes. This avoids the need for complete replacement of traditional water purification equipment due to filter damage, reducing operating costs and resource waste. Furthermore, the device has a simple structure, is easy to install and maintain, and is suitable for large-scale deployment. Attached Figure Description

[0018] Figure 1 This is a fully transparent three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 3 This is a side view of the structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the main structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the piezoelectric material of this utility model;

[0023] Figure 6 This is a schematic diagram of the electrode installation of this utility model.

[0024] List of reference numerals in the attached diagram:

[0025] Among them, 1-cover plate, 2-rotating shaft, 3-positive electrode wire, 4-negative electrode wire, 5-water pump, 6-water pipe, 7-drip hole, 8-handle, 9-water purification material, 10-solar panel, 11-support plate, 12-base plate, 13-cylinder, 14-electrode. Detailed Implementation

[0026] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. 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, and the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0027] like Figure 1-6 As shown, a solar-powered piezoelectric water purification device includes a cylinder 13, inside which a water pump 5 is installed, and a water guide pipe 6 is connected above the water pump 5. A cover plate 1 is connected to the top of the cylinder 13 via a rotating shaft 2. A solar panel 10 is covered on the top of the cover plate 1. The solar panel 10 is directly connected to the water pump 5 via positive and negative wires 3 and 4. Inside the cylinder 13, there is a support plate 11 that runs diagonally upward around the cylinder wall. Water purification material 9, which is a piezoelectric material, is placed on the support plate 11. A handle 8 is installed on the outer wall of the cylinder 13 for easy movement of the device.

[0028] The top of the water pipe 6 has a drip hole 7, through which water flows freely and falls onto the piezoelectric material; the conductors of the positive and negative wires 3 and 4 are tin-plated copper wires, and silicone is used as the insulation layer.

[0029] The piezoelectric material is a PVDF-based porous membrane laid on the water surface, with electrodes 14 connected to its upper and lower surfaces. These electrodes generate a piezoelectric effect under the impact of water flow, activating persulfate (PMS) to generate free radicals and degrading organic pollutants in the water. The electrodes are made of conductive materials, including copper, silver, or graphene, and their surfaces are waterproofed.

[0030] This solar-powered piezoelectric water purification device operates by using a solar panel 10 and a water pump 5. The solar panel 10 is directly connected to the water pump 5 via positive and negative wires, driving the water pump 5 to draw water from the cylinder 13 into the water pipe 6. The end of the water pipe 6 has drip holes 7, through which water flows freely downwards, impacting the PVDF-based porous membrane 9 laid on the water surface. This generates a piezoelectric effect, activating persulfate (PMS) to generate free radicals, thus degrading organic pollutants in the water. This device requires no external power source, relying solely on solar energy to drive water circulation, making it energy-efficient and environmentally friendly, suitable for outdoor scenarios without power grid coverage. By using the PVDF-based porous membrane 9, with electrodes connected to its upper and lower surfaces, the water flow impacts the membrane surface, generating a piezoelectric effect that activates PMS to generate sulfate radicals (SO4⁻·) and hydroxyl radicals (·OH), which can efficiently degrade organic pollutants in the water (such as pesticide and drug residues). Compared to traditional water purification technologies, this device eliminates the need for chemical reagents, avoiding secondary pollution and offering higher treatment efficiency. Through modular design, the PVDF-based porous membrane and electrodes can be replaced individually, avoiding the need for complete replacement of traditional water purification equipment due to filter damage, thus reducing operating costs and resource waste. Furthermore, the device's simple structure makes it easy to install and maintain, suitable for large-scale deployment.

[0031] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features.

Claims

1. A solar powered piezoelectric water purification device, characterized by: The application relates to a water purifying device, which comprises a cylinder (13), a water pump (5) arranged in the cylinder (13), a water guide pipe (6) connected to the water pump (5), a cover plate (1) connected to the top of the cylinder (13) through a rotating shaft (2), a solar panel (10) arranged on the top of the cover plate (1), positive electrode wires (3) and negative electrode wires (4) connected to the water pump (5), a support plate (11) arranged in the cylinder (13) and extending along the wall of the cylinder (13) and upwardly, and a water purifying material (9) arranged on the support plate (11), wherein the water purifying material (9) is a piezoelectric material.

2. A piezoelectric water purification device driven by solar energy according to claim 1, characterized in that: The top of the water guide pipe (6) is connected with a dripping hole (7), and water flows freely through the dripping hole (7).

3. A solar powered piezoelectric water purification device as claimed in claim 1, wherein: The conductor material of the positive electrode wires (3) and the negative electrode wires (4) is tinned copper wire, and silica gel is used as an insulating layer.

4. A piezoelectric water purification device driven by solar energy according to claim 1, characterized in that: The piezoelectric material is a PVDF-based porous film arranged on the water surface, and electrodes (14) are connected to the upper and lower surfaces of the piezoelectric material.

5. A solar powered piezoelectric water purification device as claimed in claim 4, wherein: The electrodes (14) are connected to the upper and lower surfaces of the piezoelectric material through a pluggable design.

6. A solar powered piezoelectric water purification device as claimed in claim 4, wherein: The electrodes are made of conductive material, including copper, silver or graphene, and the surfaces of the electrodes are subjected to waterproof treatment.

7. A solar powered piezoelectric water purification device as claimed in claim 1, wherein: A handle (8) is arranged on the outer wall of the cylinder (13).

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