A compact self-elevating diaphragmless electrolyzer

Abstract

The present application proposes a compact self-elevating diaphragmless electrolyzer, comprising a cell body and a partition arranged in the cell body, wherein the cell body is divided into a first electrolysis chamber and a second electrolysis chamber which are independent of each other by the partition, wherein a cathode plate and a first intermediate electrode are arranged in the first electrolysis chamber, and an anode plate and a second intermediate electrode are arranged in the second electrolysis chamber, wherein the first intermediate electrode and the second intermediate electrode are electrically connected, and the cathode plate and the anode plate are connected to an external power supply, and by arranging a partition in the cell body, the partition divides the cell body into a first electrolysis chamber and a second electrolysis chamber which are independent of each other, and separates the hydrogen production reaction and the oxygen production reaction in space, and simultaneously produces hydrogen and oxygen in two different containers, thereby avoiding gas mixing from the root, eliminating the need for a diaphragm, and saving costs.

Description

Technical Field

[0001] The present application relates to the technical field of electrolytic cells, and in particular to a compact self-elevating diaphragmless electrolytic cell. Background Art

[0002] An electrolyzer consists of a cell, an anode, and a cathode, most often separated by a diaphragm. When direct current passes through the cell, an oxidation reaction occurs at the anode-solution interface, while a reduction reaction occurs at the cathode-solution interface. Existing electrolyzers produce hydrogen and oxygen gases that can easily mix and explode, and the diaphragm creates additional electrical resistance, leading to excessive energy consumption. Diaphragm materials are expensive and easily damaged, making installation and maintenance difficult. Summary of the Invention

[0003] The present application aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, the purpose of this application is to propose a compact self-elevating diaphragmless electrolyzer. By arranging a partition in the cell body, the partition divides the cell body into a first electrolysis chamber and a second electrolysis chamber that are independent of each other, and the hydrogen production and oxygen production reactions are spatially separated. At the same time, hydrogen and oxygen are produced in two different containers, thereby avoiding gas mixing from the root, eliminating the need for a diaphragm, and saving costs.

[0005] To achieve the above-mentioned purpose, the present application proposes a compact self-lifting diaphragmless electrolytic cell, comprising a cell body and a partition arranged in the cell body, wherein the cell body is divided into a first electrolysis chamber and a second electrolysis chamber independent of each other by the partition, wherein a cathode plate and a first intermediate electrode are arranged in the first electrolysis chamber, and an anode plate and a second intermediate electrode are arranged in the second electrolysis chamber, wherein the first intermediate electrode and the second intermediate electrode are electrically connected, and the cathode plate and the anode plate are connected to an external power supply.

[0006] Furthermore, the cathode plate and the first intermediate electrode are arranged opposite to each other, wherein the cathode plate is inclined at a preset angle relative to the vertical direction, and the first intermediate electrode is arranged in the same direction as the cathode plate / the first intermediate electrode is arranged vertically.

[0007] Furthermore, the anode plate and the second intermediate electrode are arranged opposite to each other, wherein the anode plate is inclined at the preset angle relative to the vertical direction, and the second intermediate electrode is arranged in the same direction as the anode plate / the second intermediate electrode is arranged vertically.

[0008] Furthermore, the preset angle ranges from 10° to 30°.

[0009] Furthermore, the trough body is in a conical cylindrical shape, and the partition is arranged in the middle of the trough body.

[0010] Furthermore, the first electrolysis chamber and the second electrolysis chamber are both filled with electrolyte, and the cathode plate, the anode plate, the first intermediate electrode plate and the second intermediate electrode plate are all immersed in the electrolyte.

[0011] Furthermore, the top plates of the inner walls of the first electrolysis chamber and the second electrolysis chamber are both provided with wiring devices.

[0012] Furthermore, it also includes a gas collection device arranged at the top of the first electrolysis chamber and the second electrolysis chamber.

[0013] Furthermore, the inner walls of the first electrolysis chamber and the second electrolysis chamber are both provided with an active coating.

[0014] Furthermore, the cathode plate and the anode plate are conical, and the first intermediate electrode and the second intermediate electrode are flat plate structures.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a compact self-elevating diaphragmless electrolyzer proposed in one embodiment of the present application. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of a compact self-elevating diaphragmless electrolyzer proposed in one embodiment of the present application. Figure 2 . DETAILED DESCRIPTION

[0019] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the present application include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0020] Figure 1 This is a schematic structural diagram of a compact self-elevating diaphragmless electrolyzer proposed in one embodiment of the present application.

[0021] See also Figure 1A compact, self-elevating, diaphragmless electrolyzer comprises a cell body 8 and a partition 9 disposed within the cell body 8. The cell body 8 is divided by the partition 9 into a first electrolysis chamber 1 and a second electrolysis chamber 2, which are independent of each other. This structural design makes the electrolyzer more compact and improves space utilization. A cathode plate 3 and a first intermediate electrode 4 are spaced apart within the first electrolysis chamber 1, while an anode plate 5 and a second intermediate electrode 6 are spaced apart within the second electrolysis chamber 2. The first intermediate electrode 4 and the second intermediate electrode 6 are electrically connected, and the cathode plate 3 and the anode plate 5 are connected to an external power source. Specifically, the cell body is generally conical, with sloped sidewalls to prevent gas accumulation on the sidewalls and allow gas to rise, facilitating gas collection. Preferably, the partition 9 is disposed in the middle of the cell body 8. It is understood that both the first and second electrolysis chambers 1 and 2 have a semi-conical structure, which facilitates simultaneous electrochemical reactions on the cathode and anode sides. After electrolysis and gas production within the electrolysis chambers, the gas rises and is collected separately. The first electrolysis chamber 1 is separated by a cathode plate 3 and a first intermediate electrode 4, while the second electrolysis chamber 2 is separated by an anode plate 5 and a second intermediate electrode 6. The first intermediate electrode 4 and the second intermediate electrode 6 are electrically connected. This allows the hydrogen-oxygen reaction to occur in separate containers, creating spatial isolation and fundamentally preventing gas mixing. This eliminates the need for a diaphragm and reduces hydrogen production costs. The cathode plate 3 and the anode plate 5 are connected to an external power source. Preferably, the top plates of the inner walls of both the first and second electrolysis chambers 1 and 2 are equipped with wiring devices. Specifically, the wiring devices can be waterproof junction boxes. The cathode plate 3 and the anode plate 5 are connected to the wiring devices via electrical wires. The junction boxes then electrically connect the intermediate electrode plates in the two electrolysis chambers via external wiring, ensuring the continuous hydrogen production reaction. Preferably, in this embodiment, the cathode plate 3 and the anode plate 5 utilize a wire mesh structure to facilitate the passage of bubbles. The first and second electrolysis chambers 1 and 2 are constructed from a main structure cast in vinyl resin, coated internally and externally with an impermeable layer and an external anti-corrosion layer.

[0022] In this embodiment, the first intermediate electrode 4 and the second intermediate electrode 6 are electrically connected to form a redox couple, with a redox potential between the HER potential (-0.41 V) and the OER potential (0.82 V), and no gas is generated. Specifically, electrodes such as Ni(OH)2-NiOOH, polytriphenylamine (acidic), and sodium flow battery electrodes can be selected.

[0023] like Figure 1 and Figure 2As shown, the cathode plate 3 and the first intermediate electrode 4 are arranged opposite each other, and the cathode plate 3 is tilted at a preset angle relative to the vertical direction. The first intermediate electrode and the cathode plate are arranged in the same direction / the first intermediate electrode 4 is arranged vertically. The anode plate 5 and the second intermediate electrode 6 are arranged opposite each other, and the anode plate 5 is tilted at the preset angle relative to the vertical direction. The second intermediate electrode and the anode plate are arranged in the same direction / the second intermediate electrode 6 is arranged vertically. Preferably, the electrode plates and the side walls of the electrolysis chamber are arranged in the same direction and parallel to each other. After the electrode plates produce gas, it is not easy to accumulate on the electrode plates or the side walls of the electrolysis chamber. This structural arrangement not only saves space and reduces the volume of the electrolysis chamber, but also facilitates the rise of gas generated from the electrode plate surface under the action of buoyancy, and rises to the collection device under the action of buoyancy, thereby improving purity and saving energy. The intermediate electrode and the separator are arranged in parallel or the intermediate electrode and the electrode plate are arranged in the same direction. When the intermediate electrode and the separator are arranged in parallel, there is a larger gap between the plates, which is conducive to the full occurrence of the electrochemical reaction; when the intermediate electrode and the electrode plate are arranged in the same direction, the intermediate electrode and the electrode plate are facing each other, which improves the efficiency of the electrochemical reaction and makes the electrolytic cell structure more compact. It can be designed into a zero-spacing structure to improve the electrochemical efficiency. The specific structural design can be selected according to the structure of the electrolytic cell and the actual production situation. This application is not limited to comparison.

[0024] The preset angle range is between 10° and 30°. Within this angle range, the gas can rise quickly after being generated on the electrode plate, and the electrochemical reaction efficiency is high.

[0025] The tank body 8 is conical, and the partition 9 is disposed in the middle of the tank body 8. The special shape of the tank body 8 makes it difficult for gas to accumulate on its inner wall, allowing the gas produced on the electrode plates to rise freely. In order to ensure that the electrolytic cell has a high sealing performance, it is preferably possible to use a plastic material for one-time injection molding to obtain high structural strength and sealing performance.

[0026] The first electrolysis chamber 1 and the second electrolysis chamber 2 are both filled with electrolyte, and the cathode plate 3, the anode plate 5, the first intermediate electrode 4, and the second intermediate electrode 6 are all immersed in the electrolyte. Preferably, to ensure that the electrolysis chambers are always filled with electrolyte and to replenish the electrolyte consumed during electrolysis, the electrolysis chambers are also provided with refill ports, which allow for refilling via external refill equipment, thereby ensuring the electrolysis reaction can proceed continuously and maintain a stable reaction rate.

[0027] A compact self-elevating diaphragmless electrolyzer further includes a gas collection device 7 disposed at the top of the first electrolysis chamber 1 and the second electrolysis chamber 2. Due to the spontaneous rise of gas, the gas collection device 7 is disposed at the top of each of the two electrolysis chambers. Specifically, the gas collection device can be a gas collection tank, and the upper ends of the first and second electrolysis chambers are connected to the gas collection tanks via pipelines to store gas.

[0028] The inner walls of the first electrolysis chamber 1 and the second electrolysis chamber 2 are both provided with an active coating. The active coating prevents bubbles from adhering to the inner walls of the container, thereby improving gas collection efficiency. Specifically, a titanium-based ruthenium-titanium coating can be used, which has a good anti-sticking effect.

[0029] The cathode plate 3 and the anode plate 5 are conical, and the first intermediate electrode 4 and the second intermediate electrode 6 are flat-plate structures. The conical electrode plate structure has a larger surface area, which helps to improve the gas production efficiency. In other embodiments, the first intermediate electrode and the second intermediate electrode are also designed to be conical, so that the relative area of ​​the electrode plate and the intermediate electrode is larger, and the gas production efficiency per unit area is higher. In this embodiment, the shape of the intermediate electrode is compatible with the overall structure of the electrolysis chamber, making it easy to install in the electrolysis chamber.

[0030] In other embodiments, since the electrolytic cell of the present application has a simple structure, the production capacity can be increased and the production capacity can be expanded by repeating and sharing a gas collection device in multiple electrolytic cells, and the present application does not impose any restrictions on this.

[0031] It should be noted that, in the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0033] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0034] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A compact self-elevating diaphragmless electrolyzer, characterized in that: The invention comprises a one-time injection-molded trough body, which is a conical cylindrical shape with a small upper part and a large lower part. A partition is arranged in the middle of the trough body, and the partition separates the trough body into a first electrolysis chamber and a second electrolysis chamber that are independent of each other. A cathode plate and a first intermediate electrode are arranged in the first electrolysis chamber, and an anode plate and a second intermediate electrode are arranged in the second electrolysis chamber. A junction box with waterproof performance is arranged on the top plate of the inner wall of the first electrolysis chamber and the second electrolysis chamber, and an active coating is arranged on the inner wall of the first electrolysis chamber and the second electrolysis chamber. The cathode plate and the anode plate are connected to the junction box through electric wires, and the junction box realizes the connection of the intermediate electrodes in the two electrolysis chambers through an external power supply.

2. The compact self-elevating diaphragmless electrolyzer according to claim 1, characterized in that: The cathode plate and the first intermediate electrode are arranged opposite to each other, wherein the cathode plate is inclined at a preset angle relative to the vertical direction, and the first intermediate electrode is arranged in the same direction as the cathode plate / the first intermediate electrode is arranged vertically.

3. The compact self-elevating diaphragmless electrolyzer according to claim 2, characterized in that: The anode plate and the second intermediate electrode are arranged opposite to each other, wherein the anode plate is inclined at the preset angle relative to the vertical direction, and the second intermediate electrode is arranged in the same direction as the anode plate / the second intermediate electrode is arranged vertically.

4. The compact self-elevating diaphragmless electrolyzer according to claim 3, characterized in that: The preset angle ranges from 10° to 30°.

5. The compact self-elevating diaphragmless electrolyzer according to claim 1, characterized in that: The first electrolysis chamber and the second electrolysis chamber are both filled with electrolyte, and the cathode plate, the anode plate, the first intermediate electrode plate, and the second intermediate electrode plate are all immersed in the electrolyte.

6. The compact self-elevating diaphragmless electrolyzer according to claim 1, characterized in that: The invention also includes a gas collecting device arranged at the top of the first electrolysis chamber and the second electrolysis chamber.

7. The compact self-elevating diaphragmless electrolyzer according to claim 1, characterized in that: The cathode plate and the anode plate are conical, and the first intermediate electrode and the second intermediate electrode are flat plate structures.

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