Electrochemical device and electrochemical system for water treatment
By generating electrons in the air and using airflow to input them into the water, the problems of high energy consumption and scale formation on the electrode plates in traditional electrochemical water treatment are solved, achieving efficient and flexible ionization control and water quality improvement.
Patent Information
- Application Number
- CN202422376341.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-26
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2034-09-26
AI Technical Summary
Traditional electrochemical water treatment technology is energy-intensive and prone to scaling on the electrode plates, which affects the ionization effect.
Electrons are generated in the air by using exposed electrode heads or electrode plates. A high-speed airflow is then created by an air pump or fan to introduce electrons and negative oxygen ions into the water, forming an electron flow in the water, thus avoiding the need to place a cathode in the water.
It reduces energy consumption, avoids scale buildup on the electrode plates, and improves ionization efficiency. It can decompose water molecules, generate hydroxide ions and hydrogen ions, change the pH value of water, decompose chemical molecules, and achieve flexible ionization control.
Smart Images
Figure CN223722882U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to an electrochemical technology, and in particular to an electrochemical device and an electrochemical system for water treatment. BACKGROUND
[0002] Electrochemical ionization phenomenon is a common technology for water treatment. For example, using the principle of yin and yang attraction to separate the yin and yang ions in water; using the ion polarity constructed by electrochemical electrolysis to form a precipitate by flocculation with a reagent; etc.
[0003] Traditional electrochemical technology forms ionization phenomenon in water by setting up cathode and anode plates in water, constructing electron flow between the two plates, and adsorbing positive charged cations in water by cathode while adsorbing negative charged anions in water by anode. In the process of electron flow, the encounter between electrons and ions in water also forms ionization phenomenon.
[0004] Because water is a semiconductor, traditional electrochemical technology needs to input a certain amount of electrical energy to construct electron flow in water, so high energy consumption is a common phenomenon of traditional electrochemical technology. In addition, the cathode and anode plates set in water will form scale on the surface of the plates due to the above adsorption principle. Scale will reduce the electrochemical ionization effect. CONTENT OF THE INVENTION
[0005] In order to overcome the shortcomings of the prior art, the present disclosure provides the following content.
[0006] The present disclosure provides an electrochemical device for water treatment, comprising:
[0007] an electrode configured to generate electrons;
[0008] an air feeding device provided with one or more air ducts, and the electrode is arranged in the one or more air ducts;
[0009] wherein the electrode is configured to generate electrons when in operation, and the air feeding device is configured to release gas when in operation to send out the electrons generated by the electrode in the air duct.
[0010] In one aspect, the electrode is an exposed single electrode head, or the electrode is an electrode plate comprising a plurality of electrode heads.
[0011] In one aspect, one air duct is a downward or lateral air duct, or a downward air duct extending laterally after extending downward for a distance.
[0012] In one aspect, a plurality of air ducts are a plurality of downward air ducts, or a plurality of lateral air ducts, or a plurality of downward air ducts extending laterally after extending downward for a distance, or a plurality of air ducts extending in different directions.
[0013] In an aspect, the air duct extends downward and splits into two groups to form two longitudinal air ducts, and two electrodes are respectively arranged in the two longitudinal air ducts.
[0014] The present disclosure also proposes an electrochemical system for water treatment, comprising
[0015] The electrochemical device according to the foregoing description,
[0016] The container, the air duct is configured to extend into the container, or the air duct is configured to be located above the opening of the container and spaced apart from the opening of the container by a first distance.
[0017] In an aspect, the air duct is configured such that, when the container contains water, the air duct extending into the container extends into the water, or extends above the water surface and is spaced apart from the water surface by a second distance.
[0018] In an aspect, the second distance is 10-30 mm.
[0019] In an aspect, the container is made of a conductor.
[0020] In an aspect, the container is further provided with an anode plate.
[0021] In an aspect, the container includes two water outlets, one of the two water outlets is arranged near the anode plate, and the other of the two water outlets is arranged away from the anode plate.
[0022] The electrochemical device and the electrochemical system for water treatment according to the present disclosure can facilitate the separation of anions and cations in electrochemical water treatment applications, and can break and reconfigure chemical molecules in water, and can also decompose water molecules to generate hydroxyl ions and hydrogen ions, and change the pH value of water. BRIEF DESCRIPTION OF DRAWINGS
[0023] The exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings. The accompanying drawings and corresponding detailed description are merely intended to provide a better understanding of the present disclosure, and do not constitute any limitation on the scope of the present disclosure defined in the claims.
[0024] Figure 1A and Figure 1B An electrochemical device for water treatment according to the present disclosure is shown.
[0025] Figure 2A An electrode head according to an embodiment of the present disclosure is shown.
[0026] Figure 2B An electrode plate according to an embodiment of the present disclosure is shown.
[0027] Figure 3A ,Figure 3B and Figure 3C respectively show a gas feeding device comprising an air duct according to an embodiment of the present application, wherein the course of the air duct is shown.
[0028] Figure 4A , Figure 4B and Figure 4C respectively show an electrochemical system according to an embodiment of the present application.
[0029] Figure 5A and Figure 5B respectively show an electrochemical system according to an embodiment of the present application.
[0030] Figure 6 shows an electrochemical system according to an embodiment of the present application. DETAILED DESCRIPTION
[0031] The present disclosure will be described more fully hereinafter with reference to the accompanying drawings. This disclosure may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
[0032] The present disclosure proposes a new type of electrochemical device for water treatment, also known as virtual cathode electrochemical technology equipment, which uses electrochemical ionization technology to input electrons into water through air flow, without the need to set up electrodes in the water, or only set up an anode without a cathode.
[0033] An electrochemical device 10 for water treatment according to the present application is shown in Figure 1A and Figure 1B . The electrochemical device comprises an electrode 20 configured to generate electrons. The electrode 20 has an electrode head exposed to air, which releases electrons when powered on, and a portion of the electrons can electrolyze the air in the air to generate negative oxygen ions. As shown in Figure 1A , the longitudinal air duct of the air pump extends into the water in the container containing water. Alternatively, as shown in Figure 1B , the longitudinal air duct of the air pump is spaced apart from the water surface of the container containing water by a distance, which can be, for example, 10-30 mm, for example, 15-25 mm, for example, 18 mm, 20 mm, 23 mm, etc. The air flow generated from the air pump entrains the generated electrons into the water in the container, and at the same time, the generated negative oxygen ions in the air are also entrained into the water. The electrons and negative oxygen ions entering the water generate an electron flow in the water, forming an ionization phenomenon in the water.
[0034] The electrode head can be in the form of one electrode head, as shown in Figure 2AAs shown. The electrode 20 includes a conductive body 22 and an electrode end 24 which is joined with the conductive body 22 to release electrons with the received current, and the electrode end 24 can be made of a carbon fiber material or other suitable material. And the section 20 is formed by cutting the rod of the carbon fiber material by external forces such as tensile stress, shear stress, torsion, bending moment, etc. When the electrode 20 is electrically connected to a high-voltage power supply, the electrode end can generate a discharge effect to generate negative ions. In the case of the electrode end being a carbon fiber material, the carbon fiber filament can serve as a sharp tip to generate a discharge effect to generate negative ions (electrons).
[0035] The electrode can also be in the form of an electrode plate, as Figure 2B shown. Wherein the electrode base plate 26 provided with a plurality of electrode heads / end portions can generate a discharge effect to generate negative ions when connected to a high-voltage power supply.
[0036] The voltage range of the electrode head of the electrode according to an embodiment of the present application is 2000V-12000V, and can also be, for example, 3500V-9000V, 5000V-7000V, 4500V, 5500V, 6500V, 7500V, 10000V, etc., and is not limited thereto.
[0037] The electrochemical device further includes a gas delivery device, which can be represented as a gas pump 30, and the gas delivery device can also be a fan. Taking the gas pump 30 as an example, the electrode 20 is installed into the air duct of the gas pump 30 for delivering gas to the outside, as Figure 3A 、 Figure 3B and Figure 3C shown, the gas generated by the gas pump 30 forms a high-speed airflow to input electrons into water (the airflow direction is shown by the arrow in the figure), thereby forming
[0038] a high-speed airflow to blow out electrons. The gas pump can also be in the form of a fan.
[0039] As shown in Figure 3A , the air duct 31 of the gas pump 30 extends downward to form a longitudinal air duct, and the electrode 20 is installed into the air duct 31 at the lower part of the gas pump 30, thereby blowing the negative ions generated by the electrode 20 along the air duct 31.
[0040] As shown in Figure 3B , the air duct 33 of the gas pump 30 extends downward and extends sideways at an angle, forming a transverse air duct, and the electrode 20 is installed into the part of the air duct 33 of the gas pump 30 which extends sideways, thereby blowing the negative ions generated by the electrode 20 along the air duct 33.
[0041] As shown in Figure 3CAs shown, the air duct 35 of the air pump 30 extends downward and is divided into two groups, air ducts 351 and 352, forming two longitudinal air ducts, and two electrodes, electrode 201 and electrode 202, are respectively installed into the air ducts 351 and 352 of the lower part of the air pump 30, thereby blowing the negative ions generated by the electrode 20 into the air ducts.
[0042] The electrochemical device of the embodiment of the present application generates electrons in the air by the electrode, and inputs the electrons into the water by the airflow from the air duct. The electrochemical device of the embodiment of the present application generates electrons in the air by the bare electrode head, releases the electrons after being electrified, and blows the high-speed airflow to the water surface or the water by the air pump or the fan. The airflow will carry the generated electrons into the water, and will also carry the negative oxygen ions generated by the electrode head releasing the electrons electrolyzing the air into the water. Whether the electrons or the negative oxygen ions directly enter the water, the electron flow will be generated in the water, forming the ionization phenomenon in the water. Based on the above working form, the electrochemical device of the embodiment of the present application can also be called as the virtual cathode electrochemical technology equipment.
[0043] The electrochemical system according to the embodiment of the present application is shown in FIGS. Figure 4A 、 4B and 4C, wherein the electrochemical device composed of the electrode, the air pump and the air duct extends into the container 41 containing water. A plurality of electrochemical devices or the electrochemical device including a plurality of air ducts extend into the container containing water, so that more electrons and negative oxygen ions are sent into the water, forming the ionization phenomenon, and further generating the hydroxyl radical (OH) in the water, changing the PH value of the water. As shown in FIG. Figure 4A , two electrochemical devices extend into the container containing water. As shown in FIG. Figure 4B , three electrochemical devices extend into the container 43 containing water. As shown in FIG. Figure 4C , the electrochemical device including four air ducts extends into the container 45 containing water. The number of the electrochemical devices or the air ducts used can be determined according to the volume of the water body, the content of the water pollutants, the electrical conductivity of the water, the ionization intensity required for the water treatment, etc.
[0044] In an example, the container containing water used is a 2 cubic meter container, the electrical conductivity of the water body is 5000 μs.cm-1, for treating the sewage, the electron release amount is about 1.8.-2.2 million / cm 2 , for example, the electron release amount is about 2 million / cm 2 , and the number of the air ducts can be two, three or four.
[0045] In an example, the container containing water used is a 4 cubic meter container, the electrical conductivity of the water body is 4600 μs.cm-1, for treating the sewage, the electron release amount is about 1.8.-2.2 million / cm2 The release amount of electrons is about 200 million / cm 2 The number of air ducts that can be placed can be two, three, or four. When multiple air ducts are used, a single air pump or two air pumps or more air pumps can be used.
[0046] According to an embodiment of the present application, the container containing water is made of a conductor, or an anode plate is further arranged in the container containing water. As shown in Figure 5A The electrochemical system according to an embodiment of the present application, two electrochemical devices extend into the container containing water, the container containing water is made of a conductor and grounded. As shown in Figure 5B The electrochemical system according to an embodiment of the present application, two electrochemical devices extend into the container containing water, the anode plate 52 is arranged at the side of the inside of the container containing water. In the case of arranging the anode plate in the container, the container does not need to be grounded. Without the anode, most of the electrons injected into the water will be obtained by the ions in the water to change the physical and chemical properties, and the weak excess electrons will be introduced into the surface of the container and then released into the air. However, different application scenarios may require to select the electron release of the device application to be avoided. With the anode, the container containing water of the electrochemical system as shown in Figure 5A 、 5B The container containing water of the electrochemical system, the water container is made of a conductor and grounded, so that the electrochemical system according to an embodiment of the present application can be applied to the application of electrolytic metal cations.
[0047] According to another embodiment of the present application, as shown in Figure 6 The electrochemical system according to an embodiment of the present application, the anode plate is arranged at one side of the inside of the container containing water, a first outlet 62 is arranged at the one side of the container, and a second outlet 64 is arranged at the other side of the container opposite to the one side and away from the anode plate, so that the water in the container is divided. In use, the anions and cations in the water are divided, and the water enriched with anions is unidirectionally guided.
[0048] According to another embodiment of the present application, one or more electrochemical devices or electrochemical devices including multiple air ducts can extend the air duct into the organic plate electrolytic cell, or make the air duct spaced apart from the electrolyte in the organic plate electrolytic cell, so as to promote the electrolysis in the electrolytic cell.
[0049] According to another embodiment of the present application, a chemical agent is added to the container containing water, so as to carry out electroflocculation. For example, a flocculating agent can be added to form a flocculating group, which has strong adsorption capacity and can adsorb and co-sediment the pollutants in the wastewater to remove them.
[0050] According to another embodiment of the utility model, ozone can also be added to the container containing water. The ozone can be generated by an ozone generator, and the ozone and hydroxyl radicals (OH) in the container are conducive to disinfection treatment of the water.
[0051] According to the electrochemical device or electrochemical system of another embodiment of the utility model, the strength of the ionization phenomenon can be controlled by controlling the input power of the electrode. According to the electrochemical device or electrochemical system of another embodiment of the utility model, not only can a stronger ionization effect than traditional electrochemistry be formed, but also the system has the characteristic of being particularly flexible in application, and can build an ionization effect in any water body. Furthermore, according to the electrochemical device or electrochemical system of another embodiment of the utility model, energy consumption can be greatly reduced, and the problem of electrode fouling can also be avoided.
[0052] The electrochemical device or electrochemical system of the utility model has a wide range of application directions, and in addition to the traditional electrochemical water treatment applications of anion and cation diversion, metal cations of electrolytic anode electrode plates, and electrocoagulation, it can also decompose water-soluble ions in water to form gasification or precipitation phenomena; it can also break the chains and reconstruct the combined molecules in water to make them gasify or precipitate, or build the required molecular polarity; it can also decompose water molecules to generate hydroxyl ions and hydrogen ions, and change the pH value of the water.
[0053] The embodiments or elements shown in the present disclosure, including specific descriptions and materials used in the examples, are intended to be illustrative rather than limiting. They allow a wide range of changes, adjustments or adaptations consistent with the basic concept of the present disclosure. It needs to be clarified that all the depicted figures are for illustrative purposes only; they are neither drawn to scale nor an exact copy of the actual device.
[0054] In cases where it has not been explicitly described, the various embodiments described in conjunction with the drawings or their various aspects and features can be combined or exchanged with each other without limiting or expanding the scope of the described disclosure, as long as such combinations or exchanges are meaningful and within the meaning of the present disclosure. In any applicable case, the advantages described with respect to a particular embodiment of the present disclosure or with respect to a particular figure are also advantages of other embodiments of the present disclosure.
Claims
1. An electrochemical device for water treatment, comprising: an electrode configured to generate electrons; an air delivery device provided with one or more air channels, the electrode being disposed in the one or more air channels; wherein the electrode is configured to generate electrons when in operation, and wherein the air delivery device is configured to release air when in operation to deliver the electrons generated by the electrode out of the air channels.
2. The electrochemical device of claim 1, wherein The electrode is an exposed single electrode tip, or the electrode is an electrode plate comprising a plurality of electrode tips.
3. The electrochemical device of claim 1, wherein An air channel is an air channel extending downwardly or sidewardly, or an air channel extending downwardly for a distance and then extending sidewardly.
4. The electrochemical device of claim 1, wherein A plurality of air channels are a plurality of air channels extending downwardly, or a plurality of air channels extending sidewardly, or a plurality of air channels extending downwardly for a distance and then extending sidewardly, or a plurality of air channels extending in different directions.
5. An electrochemical system for water treatment, characterized by comprising The electrochemical device according to any one of claims 1-4, a container, the air channels being configured to extend into the container, or the air channels being configured to be located above the opening of the container and spaced apart from the opening of the container by a first distance.
6. The electrochemical system of claim 5, wherein, The air channels are configured such that, when the container contains water, the air channels extending into the container extend into the water, or extend above the water surface and are spaced apart from the water surface by a second distance.
7. The electrochemical system of claim 6, wherein, The second distance is 10-30 mm.
8. The electrochemical system of claim 5, wherein, The container is made of a conductor.
9. The electrochemical system of claim 5, wherein, The container is further provided with an anode plate.
10. The electrochemical system of claim 9, wherein, The container comprises two water outlets, one of the two water outlets being disposed near the anode plate, and the other of the two water outlets being disposed away from the anode plate.