Water treatment device based on mechanical energy driving

Abstract

The invention relates to the technical field of water treatment devices, in particular to a water treatment device based on mechanical energy driving, which comprises a barrel, a liquid distribution plate is arranged in the barrel, and the liquid distribution plate divides the inner cavity of the barrel into a liquid distribution area at the upper end and a catalysis area at the lower end which are mutually separated; the liquid distribution plate is provided with liquid distribution holes used for communicating the liquid distribution area with the catalytic area, a water purification mechanism is installed in the catalytic area, the cylinder is provided with a discharge pipe communicated with the catalytic area, the rotating shaft is utilized to rotate, so that the magnetic layer and the catalytic layer rotate relatively to form a potential difference, an electric field enables carriers to migrate in a directed mode, recombination is reduced, and the water purification efficiency is improved. The photocatalytic and electro-catalytic efficiency is improved, the treatment capacity of refractory pollutants can be greatly improved, the oxidation-reduction reaction is enhanced by the catalytic layer, the solution mixing is enhanced by the magnetic field, the interface reaction rate is improved, micro-disturbance is generated at the reaction interface, the mass transfer distance is shortened, and the contact efficiency and degradation rate of free radicals and the pollutants are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water treatment devices, in particular to a water treatment device based on mechanical energy driving. BACKGROUND

[0002] With the increasing shortage of water resources and the increasing pollution of water, water treatment technology has become an important research direction for global environmental protection and sustainable development. Among them, the removal of organic pollutants in water is one of the key issues in the field of water treatment. Industrial wastewater, domestic sewage and other water bodies often contain various complex organic matter, and conventional treatment methods (such as activated carbon adsorption, chemical agent treatment, etc.) often have limited treatment efficiency, high cost, and easy to produce secondary pollution. Therefore, developing efficient, green and low-energy water treatment technology has become an urgent problem for current researchers to solve.

[0003] At present, the field of water treatment mainly relies on physical, chemical and biological methods to degrade organic pollutants in water. Traditional physical and chemical methods, including adsorption, precipitation, oxidation-reduction reaction, etc., can partially remove pollutants, but still have the following obvious limitations: first, the treatment efficiency is low, especially for trace organic matter and refractory organic matter, the removal effect is not ideal; second, easy to cause secondary pollution, especially the use of chemical agents may produce harmful by-products; third, it depends on external energy, high energy consumption, and it is difficult to balance economy and sustainability in large-scale applications, therefore, developing a kind of high-efficiency green water treatment device which does not depend on external power and can be driven by mechanical energy has important practical value for wilderness or economically underdeveloped areas.

[0004] In recent years, water treatment methods based on the combined action of electric field and magnetic field have gradually attracted attention. Studies have shown that the synergistic effect of magnetic field and electric field can significantly improve the degradation efficiency of organic matter in water. Magnetic field can exert force on particles in water, promoting the contact between pollutants and catalysts; while electric field can generate active groups such as hydroxyl radicals, superoxide anions in water, effectively decomposing organic pollutants. Especially in the presence of noble metal catalysts (such as silver, platinum, etc.), electric field can further enhance the catalytic effect and sterilization effect, thereby improving the overall water treatment performance. At present, the combined treatment method of magnetic field and electric field has shown good experimental results in water disinfection, sewage treatment and other fields. However, this kind of method usually relies on external power or complex electrical equipment, which limits its popularization and application in remote areas or low-energy environments. Therefore, many researchers turn to explore mechanical energy-driven water treatment devices, which are driven by human power or natural energy to reduce energy consumption and improve the applicability and sustainability of the system.

[0005] However, the existing mechanical energy driving device still has some deficiencies in design: on the one hand, the synergistic effect of magnetic field and electric field has not been fully optimized, the contact time of water flow and magnetic field, noble metal particles is relatively short, which affects the treatment efficiency; on the other hand, the device is often lack of efficient water flow path design, which cannot ensure that the water flow is fully contacted with the catalyst and active substance when passing through the magnetic field and electric field area, thereby restricting the overall treatment effect. Therefore, how to design a water treatment device which can effectively utilize mechanical energy driving and enhance the interaction between water flow and magnetic field and electric field is a key problem to be solved in the field. SUMMARY

[0006] The technical problem solved by the present application is: in order to solve the problem that the magnetic field and electric field of the existing mechanical driving device act, the contact time of water flow and magnetic field, noble metal particles is relatively short, which affects the treatment efficiency, and the device is often lack of efficient water flow path design, which affects the treatment effect, the present application provides a water treatment device driven by mechanical energy.

[0007] The technical scheme adopted by the present application to solve its technical problem is: a water treatment device driven by mechanical energy, comprising a cylinder, a liquid distribution plate is arranged in the cylinder, the liquid distribution plate divides the inner cavity of the cylinder into a liquid distribution area at the upper end and a catalytic area at the lower end which are separated from each other, the liquid distribution plate is provided with liquid distribution holes for connecting the liquid distribution area and the catalytic area, a water purification mechanism is installed in the catalytic area, and a discharge pipe is arranged on the cylinder and connected with the catalytic area; The water purification mechanism comprises a rotating shaft rotatably installed in a cylinder, a plurality of magnetic force layers for generating a magnetic field are installed on the rotating shaft in an axial direction, a plurality of catalytic layers are arranged in a catalytic area of the cylinder in an axial direction of the rotating shaft, and the magnetic force layers are arranged between two adjacent catalytic layers to form a reciprocating and meandering purification channel in the catalytic area. The catalytic layer is used to generate a potential difference when rotating opposite to the magnetic force layer, activate oxygen dissolved in water, generate hydroxyl radicals and singlet oxygen, cut the magnetic force lines and be in an electric field to enhance the charge separation and migration ability, reduce the electron-hole recombination, improve the active oxygen species generation, accelerate the interface oxidation-reduction reaction, and generate plasmonic effect and electron trapping effect on the surface of the catalytic layer to enhance the free radical generation rate. Compared with the prior art, the present scheme uses the rotation of the rotating shaft to form a potential difference between the magnetic force layer and the catalytic layer, provides the driving force required for the catalytic reaction, does not need a power supply, greatly reduces the operation cost and system complexity, the electric field makes the carrier directional migration, reduces the recombination, improves the photocatalytic and electrocatalytic efficiency, can greatly improve the treatment capacity of refractory pollutants, the catalytic layer strengthens the oxidation-reduction reaction, the magnetic field enhances the solution mixing, improves the interface reaction rate, and makes the reaction interface produce micro-disturbance, shortens the mass transfer distance, improves the contact efficiency of free radicals and pollutants, and further improves the degradation rate. The overall structure of the device is simple, does not need a power supply, is suitable for outdoor and emergency scenes.

[0008] In order to realize the catalytic layer, preferably in some embodiments, each of the catalytic layers comprises an upper conductor and a lower conductor arranged below the upper conductor, an intermediate insulating plate is arranged between the upper conductor and the lower conductor, a catalyst slurry is covered on the outer surface of the upper conductor and the outer surface of the lower conductor, and a water baffle is arranged above the upper conductor. By arranging the upper conductor and the lower conductor upward and downward, and covering the catalyst slurry on the outer surfaces of the upper conductor and the lower conductor, the upper conductor and the lower conductor cut the magnetic field and generate a potential difference, the magnetic field, the electric field and the catalyst slurry synergistically act, and the organic pollutants in water can be efficiently degraded.

[0009] In order to realize the catalyst slurry, preferably in some embodiments, manganese dioxide powder loaded with nano-gold or nano-platinum is added into epoxy resin, the mass ratio of the powder and the epoxy resin is 7-8:1, then the mixture is uniformly mixed and a curing agent is added. The metal particles strengthen the oxidation-reduction reaction, the localized surface plasmonic effect and electron trapping effect of noble metals significantly enhance the free radical generation rate, so that the device still has high catalytic activity under weak light or even no light conditions.

[0010] Preferably in some embodiments, the water baffle is in the shape of a zigzag line and radiates outward.

[0011] In order to realize the upper conductor and the lower conductor, preferably some embodiments, the upper conductor and the lower conductor each comprise a plurality of annular copper wires nested from outside to inside, and the outer surface of the annular copper wires is coated with an insulating layer.

[0012] In order to handle the reduction of large particles in water, preferably some embodiments, a filtering mechanism for filtering particles is arranged in the cloth liquid area.

[0013] Preferably, some embodiments of the filtering mechanism include a filter disc arranged on the rotating shaft, and a screen is arranged on the periphery of the filter disc to form a cofferdam.

[0014] Preferably, some embodiments of the filtering mechanism further comprise a water deflector, which is annular, and the cross-sectional area of the water deflector gradually increases from inside to outside.

[0015] Preferably, some embodiments of the filtering mechanism are provided with a water inlet pipe above the filtering mechanism, and the water outlet of the discharge pipe is lower than the water inlet pipe.

[0016] In order to facilitate the rotation of the rotating shaft, preferably some embodiments, a handle is arranged on the rotating shaft.

[0017] The beneficial effects of the present application are: the water treatment device driven by mechanical energy in the present application can form a potential difference between the magnetic layer and the catalytic layer by rotating the rotating shaft when in use, providing the driving force required for catalytic reaction, without the need for power supply, greatly reducing the operation cost and system complexity, the electric field makes the carrier directional migration, reduces the recombination, improves the photocatalytic and electrocatalytic efficiency, can greatly improve the treatment capacity of refractory pollutants, the catalytic layer strengthens the redox reaction, the magnetic field enhances the solution mixing, improves the interface reaction rate, and makes the reaction interface produce micro disturbance, shortens the mass transfer distance, improves the contact efficiency of free radicals and pollutants, further improves the degradation rate, the overall structure of the device is simple, easy to manufacture, and the maintenance cost is low, and it can be used without power supply, suitable for outdoor and emergency scenes, avoiding the problems that the magnetic field and electric field of the existing mechanical driving device make the contact time of water flow and magnetic field, noble metal particles short, affecting the treatment efficiency, and the internal water flow path design of the device is often inefficient, affecting the treatment effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings and examples.

[0019] Figure 1 is a structural schematic diagram of the present application; Figure 2 is a top view of the filtering mechanism in the purification mechanism of the present application; Figure 3 is Figure 2 A-A sectional view in Figure 4 is the top view of the magnetic layer in the purification mechanism of the present application; Figure 5 is Figure 4 the B-B section view in the present application; Figure 6 is Figure 5 the partial enlarged view of C in the present application.

[0020] In the figure: 1, cylinder, 101, liquid distribution area, 102, catalytic area, 2, liquid distribution plate, 201, liquid distribution hole, 3, discharge pipe; 4, water purification mechanism, 401, rotating shaft, 402, magnetic layer, 403, catalytic layer, 4031, upper conductor, 4032, lower conductor, 4033, intermediate insulating plate, 4034, catalyst slurry, 4035, water baffle, 404, purification channel, 405, filtering mechanism, 4051, filter disc, 4052, screen, 4053, water baffle, 406, handle; 5, water inlet pipe. DETAILED DESCRIPTION

[0021] As Figures 1-6 shown, a water treatment device based on mechanical energy driving, including a cylinder 1 with an open upward inner cavity, a liquid distribution plate 2 is arranged in the cylinder 1, the liquid distribution plate 2 divides the inner cavity of the cylinder 1 into a liquid distribution area 101 at the upper end and a catalytic area 102 at the lower end, the liquid distribution plate 2 is provided with liquid distribution holes 201, the liquid distribution holes 201 are used to communicate the liquid distribution area 101 and the catalytic area 102, a water purification mechanism 4 is installed in the catalytic area 102, a discharge pipe 3 is arranged on the cylinder 1 and communicates with the catalytic area 102, a handle 406 is arranged on the rotating shaft 401; The water purification mechanism 4 comprises a rotating shaft 401, the bottom of the cylinder body 1 is provided with a top pin, the rotating bottom is provided with a center hole, the top pin is inserted in the center hole, and the rotating shaft 401 is rotatably installed on the liquid distribution plate 2 through a bearing, so that the rotating shaft 401 rotates on the cylinder body 1. The rotating shaft 401 is spaced apart along the axial direction and is provided with five magnetic force layers 402, which are used to generate a magnetic field. The magnetic force layer 402 is disc-shaped, and the inner circumferential wall of the cylinder body 1 is provided with five catalytic layers 403 in the catalytic zone 102. The five catalytic layers 403 are spaced apart along the axial direction of the rotating shaft 401. The catalytic layer 403 is annular, the magnetic force layer 402 is located between the adjacent two catalytic layers 403 and forms a reciprocating and tortuous purification channel 404 in the catalytic zone 102. The catalytic layer 403 is used to generate a potential difference when rotating opposite to the magnetic force layer 402, and activates the oxygen dissolved in the water to generate hydroxyl radicals and singlet oxygen. In addition, the catalytic layer 403 cuts the magnetic force line and is in an electric field to enhance the charge separation and migration ability, reduce the electron-hole recombination, improve the active oxygen species generation, accelerate the interface oxidation-reduction reaction, and generate plasmonic effect and electron capture effect on the surface of the catalytic layer 403 to enhance the free radical generation rate.

[0022] In the embodiment, the magnetic force layer 402 is five. In addition to five, it can also be two, three, four or more. Similarly, the catalytic layer 403 corresponds to the magnetic force layer 402, and the catalytic layer 403 is also five. In addition to five, it can also be two, three, four or more. The magnetic force layer 402 and the catalytic layer 403 are staggered and form a tortuous purification channel 404 in the catalytic zone 102. The purification channel 404 can increase the reaction path of water, greatly increase the contact time with water, and also improve the reaction efficiency and purification efficiency. In addition, the magnetic force layer 402 is a magnet, and the upper magnet of each catalytic layer 403 is an S pole and the lower magnet is an N pole.

[0023] Each catalytic layer 403 comprises an upper conductor 4031 and a lower conductor 4032. The upper conductor 4031 is located above the lower conductor 4032. An intermediate insulating plate 4033 is arranged between the upper conductor 4031 and the lower conductor 4032. The outer surface of the upper conductor 4031 and the outer surface of the lower conductor 4032 are covered with a catalyst slurry 4034. After the catalyst slurry 4034 on the outer surface of the upper conductor 4031 and the outer surface of the lower conductor 4032 is dried, the catalyst is exposed to the surface by slightly polishing, so as to avoid that the high polymer adhesive covers the surface of the catalyst. A water baffle 4035 is arranged above the upper conductor 4031. The water baffle 4035 is in a zigzag shape and radiates outward to increase the flow path and make the water and the catalyst slurry 4034 fully contact.

[0024] The catalyst slurry 4034 is prepared by adding manganese dioxide powder loaded with nano-gold or nano-platinum into epoxy resin, wherein the mass ratio of the powder and the epoxy resin is 7-8:1, and then uniformly mixing and adding a curing agent to enable the epoxy resin to be quickly cured, and the manganese dioxide powder loaded with nano-gold or nano-platinum can be prepared by using the prior art.

[0025] The upper conductor 4031 and the lower conductor 4032 each include a plurality of annular copper wires which are sleeved one by one from outside to inside, and the outer surfaces of the annular copper wires are covered with an insulating layer, that is, the annular copper wire of the outermost layer has the largest diameter, and the diameters of the annular copper wires gradually decrease from outside to inside.

[0026] The filtering mechanism 405 is arranged in the liquid distribution area 101 and is used for filtering particulate matters, and the filtering mechanism 405 includes a filtering disc 4051 arranged on the rotating shaft 401, a screen 4052 is arranged on the periphery of the filtering disc 4051 and forms a cofferdam, and the filtering mechanism 405 further includes a water deflecting plate 4053 which is annular and has a cross-sectional area gradually increasing from inside to outside, and a water inlet pipe 5 is arranged above the filtering mechanism 405, and the water outlet of the drain pipe 3 is lower than the water inlet pipe 5, in use, the water deflecting plate 4053 rotates, and due to the centrifugal force, the water around the water deflecting plate 4053 is relatively high, and the water in the center is relatively low, so that the water is gradually separated out.

[0027] The specific working principle of the scheme is as follows: in use, water flows into the water inlet pipe 5 from the top, the handle 406 on the rotating shaft 401 is rotated, the rotating shaft 401 drives the filtering disc 4051 to rotate, and the magnetic layer 402 also rotates, with the rotation of the filtering disc 4051, the water is thrown to the cofferdam formed by the screen 4052 on the periphery of the water deflecting plate 4053 on the filtering mechanism 405 and the particulate matters are removed, then the water flows into the purification channel 404 in the catalytic area 102 from the liquid distribution hole 201 of the liquid distribution plate 2, the water flows on the surface of the catalytic layer 403, the organic pollutants and bacteria are degraded or inactivated by the active substances, and after the action of the surfaces of the plurality of catalytic layers 403, the pollutants are completely purified, and even the effect of direct drinking can be achieved.

[0028] The magnetic force layer 402 rotates relative to the catalytic layer 403, and the nano-gold is loaded on the surface of the manganese dioxide, which also cuts the magnetic force lines, generates a potential difference on the surface of the nano-gold particles to form a negative electrode, and under the catalytic action of the manganese dioxide, the oxygen dissolved in water is activated to generate hydroxyl radicals and singlet oxygen. In addition, the annular copper wire on the upper conductor 4031 and the lower conductor 4032 of the bottom cuts the magnetic force lines, generates a potential difference on the inside and outside of the annular copper wire to form a positive electrode, and under the action of the positive electrode and the negative electrode, an electric field is generated. The manganese dioxide close to the annular copper wire is in the electric field, the ionization of water produces a hydrated electron precursor and a positive ion H2O+, which can participate in electron transfer and chemical reaction. Mechanical shearing promotes the breaking of hydrogen bonds to form charge pairs. Au NPs reduce the energy band gap of SiO2, improve the efficiency of electron transfer, establish a strong nanoelectric field, drive the disinfection reaction, significantly enhance the charge separation and migration ability, reduce the electron-hole recombination, improve the generation of reactive oxygen species, and accelerate the interfacial redox reaction, thereby significantly improving the catalytic efficiency of the semiconductor material. The nano-gold particles significantly reduce the energy band gap of SiO2 from 3.4 eV to 0.6 eV, which helps to transfer the hydrated electrons from water to the surface of the material. Mechanical shearing excites electron transfer, and the surface charges of Au NPs interact to form a stable nanoelectric field, which promotes the sterilization reaction. The density functional theory DFT simulation verifies that the electric field activates oxygen, which makes the oxygen molecules weak and reduces the reduction energy barrier.

[0029] Based on the above ideal embodiments according to the present application, the relevant personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and the technical scope must be determined according to the scope of the claims.

Claims

1. A water treatment device based on mechanical energy drive, characterized in that: The device includes a cylindrical body (1), inside which a liquid distribution plate (2) is provided. The liquid distribution plate (2) divides the inner cavity of the cylindrical body (1) into a liquid distribution area (101) at the upper end and a catalytic area (102) at the lower end, which are separated from each other. The liquid distribution plate (2) is provided with a liquid distribution hole (201) for connecting the liquid distribution area (101) and the catalytic area (102). A water purification mechanism (4) is installed in the catalytic area (102). The cylindrical body (1) is provided with a discharge pipe (3) that communicates with the catalytic area (102). The water purification mechanism (4) includes a rotating shaft (401) rotatably installed inside a cylindrical body (1). Multiple magnetic layers (402) for generating a magnetic field are spaced apart along the axial direction of the rotating shaft (401). Multiple catalyst layers (403) are disposed within the catalytic zone (102) of the cylindrical body (1). These catalyst layers (403) are spaced apart along the axial direction of the rotating shaft (401). The magnetic layers (402) are located between adjacent catalyst layers (403), creating a reciprocating, tortuous purification mechanism within the catalytic zone (102). Channel (404), the catalyst layer (403) is used to generate a potential difference when rotating relative to the magnetic layer (402), and to activate oxygen dissolved in water to generate hydroxyl radicals and singlet oxygen. In addition, the catalyst layer (403) cuts the magnetic lines of force and is in an electric field to enhance charge separation and migration capabilities, reduce electron-hole recombination, increase the generation of reactive oxygen species, accelerate the interface redox reaction, and generate plasmon resonance and electron trapping effects on the surface of the catalyst layer (403) to enhance the rate of free radical generation.

2. The water treatment device based on mechanical energy drive according to claim 1, characterized in that: Each catalyst layer (403) includes an upper conductor (4031) and a lower conductor (4032) disposed below the upper conductor (4031). An intermediate insulating plate (4033) is disposed between the upper conductor (4031) and the lower conductor (4032). Catalyst slurry (4034) is covered on the outer surface of both the upper conductor (4031) and the lower conductor (4032). A water-blocking strip (4035) is disposed above the upper conductor (4031).

3. The water treatment device based on mechanical energy drive according to claim 2, characterized in that: The catalyst slurry (4034) is made by adding manganese dioxide powder loaded with nano-gold or nano-platinum into epoxy resin, wherein the mass ratio of powder to epoxy resin is 7-8:1, and then mixing it evenly and adding curing agent.

4. The water treatment device based on mechanical energy drive according to claim 2, characterized in that: The water-blocking strip (4035) radiates outward in a zigzag shape.

5. The water treatment device based on mechanical energy drive according to claim 2, characterized in that: Both the upper conductor (4031) and the lower conductor (4032) include several annular copper wires arranged in concentric circles from the outside in, and the outer surface of the annular copper wires is covered with an insulating layer.

6. The water treatment device based on mechanical energy drive according to claim 1, characterized in that: The liquid distribution area (101) is equipped with a filter mechanism (405) for filtering particulate matter.

7. The water treatment device based on mechanical energy drive according to claim 6, characterized in that: The filtration mechanism (405) includes a filter disc (4051) disposed on a rotating shaft (401), and a screen (4052) is disposed on the periphery of the filter disc (4051) to form a dam.

8. The water treatment device based on mechanical energy drive according to claim 6, characterized in that: The filtration mechanism (405) also includes a water-dispersing plate (4053), which is annular and has a cross-sectional area that gradually increases from the inside to the outside.

9. The water treatment device based on mechanical energy drive according to claim 6, characterized in that: The filter mechanism (405) is provided with an inlet pipe (5) above it, and the drain outlet of the outlet pipe (3) is lower than the inlet pipe (5).

10. The water treatment device based on mechanical energy drive according to claim 1, characterized in that: A handle (406) is provided on the rotating shaft (401).

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