Electrode module for ozone generator

Abstract

The utility model provides an electrode module for an ozone generator. The electrode module comprises a cathode structure, an anode structure and an ion exchange structure, the anode structure and the cathode structure are arranged at an interval, the anode structure is fixedly connected with the cathode structure through a connecting piece, the anode structure is provided with oxygen generating parts, and each oxygen generating part is electrically connected with a positive electrode of an external power supply module. And the ion exchange structure is positioned between the cathode structure and each oxygen generation part and is fixedly connected with the connecting piece. According to the electrode module for the ozone generator, provided by the utility model, hydrogen generated on the cathode structure can be intercepted, and is effectively prevented from being mixed with ozone generated on the anode structure, so that the purity of the ozone is ensured; in addition, each oxygen generating part is independently connected with the positive electrode of the power supply module, so that the size can be correspondingly reduced, and meanwhile, the electrolysis efficiency is improved and the practicability is high through a structure for jointly bearing current and uniformly distributing current density.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolytic electrodes, and particularly relates to an electrode module for an ozone generator. Background Art

[0002] Ozone, also known as superoxide, is an allotrope of oxygen. At room temperature, the half-life of ozone is 15 - 30 minutes (min), which makes the conventional storage of ozone difficult and costly. At the same time, ozone has strong oxidizing and decomposing properties and can be used as a sewage purifying agent, decolorizing agent, disinfectant, etc. Ozone has a fast sterilization and disinfection speed and good effect, and ozone itself is reduced to generate oxygen. Therefore, the use of ozone has been widely recognized and is a globally recognized green disinfectant. Currently, the preparation method of ozone usually adopts the electrolysis method. The electrolysis method for preparing ozone is to select an anode electrode with a relatively high oxygen evolution potential and a cathode electrode with strong stability, and use low-voltage direct current to electrolyze an oxygen-containing electrolyte, thereby generating ozone at the anode. The ozone prepared by this technology has a relatively high concentration, and the by-products are oxygen and hydrogen, which will not cause pollution to the environment.

[0003] In the prior art, for the electrode module adopted by the electrolysis method, it usually mainly includes an anode sheet and a cathode sheet. Currently, in order to improve the preparation efficiency under the state of low voltage, usually two anode sheets arranged at intervals and a cathode sheet located between the two anode sheets are set. In the actual preparation process of this structure, hydrogen and oxygen will be mixed, and the purity of oxygen cannot be guaranteed, and this structure relatively occupies a large volume. Summary of the Utility Model

[0004] The embodiment of the utility model provides an electrode module for an ozone generator, aiming to solve the problem of poor practicability caused by the inability to guarantee the purity of oxygen and large volume of the existing electrode module of the ozone generator under the condition of low-voltage input.

[0005] To achieve the above object, the technical solution adopted by the utility model is: to provide an electrode module for an ozone generator, including:

[0006] A cathode structure;

[0007] An anode structure, arranged at intervals with the cathode structure and fixedly connected with the cathode structure through a connecting piece. The anode structure has an oxygen generation part, and each oxygen generation part is electrically connected with the positive pole of an external power supply module;

[0008] An ion exchange structure, located between the cathode structure and each oxygen generation part and fixedly connected with the connecting piece.

[0009] In a possible implementation manner, the anode structure includes:

[0010] Anode substrate;

[0011] Anode sheets, multiple in number, each of the anode sheets being arranged in a matrix on the anode substrate and fixedly connected to the anode substrate through locking members, and each of the anode sheets being the oxygen generation part.

[0012] In a possible implementation manner, the locking member is a locking bolt.

[0013] In a possible implementation manner, each of the anode sheets is provided with a through hole for the locking bolt to pass through, and the anode substrate is provided with a plurality of threaded holes for the locking bolt to be threadedly connected.

[0014] In a possible implementation manner, the anode substrate is made of a non-metallic material, and the anode sheet is a diamond sheet.

[0015] In a possible implementation manner, a plurality of connecting members are provided, and the connecting members are evenly arranged on the anode structure, and each of the connecting members is a locking bolt;

[0016] Wherein, insulating washers for the connecting members to pass through are provided between the cathode structure, the anode structure and the ion exchange structure.

[0017] In a possible implementation manner, except that one of the locking bolts is made of a metal material, the other locking bolts are all made of a metal material.

[0018] In a possible implementation manner, the cathode structure includes:

[0019] A cathode substrate, connected to the cathode structure through the connecting member;

[0020] A titanium felt sheet, arranged on the cathode substrate.

[0021] In a possible implementation manner, the ion exchange structure includes:

[0022] An outer frame, having a frame opening, and the outer frame is for the connecting member to be connected;

[0023] An ion exchange membrane, fixedly arranged in the frame opening.

[0024] In this implementation manner, by arranging the ion exchange structure between the cathode structure and the anode structure, it can ensure the interception of the hydrogen generated on the cathode structure, effectively avoid mixing with the ozone generated on the anode structure, and thus ensure the purity of the ozone. A plurality of oxygen generation parts are arranged on the anode structure, and the plurality of oxygen generation parts are respectively independently connected to the positive electrode of the power module, which can correspondingly reduce the volume. At the same time, through the structure of jointly carrying current and evenly distributing the current density, the electrolysis efficiency is improved, and the practicability is strong. Description of the Drawings

[0025] Figure 1 Schematic structural diagram of the electrode module for an ozone generator provided by an embodiment of the present utility model;

[0026] Figure 2 Partial cross-sectional structural diagram of the electrode module for an ozone generator provided by an embodiment of the present utility model;

[0027] Description of reference numerals:

[0028] 10. Cathode structure; 11. Cathode substrate; 12. Titanium felt sheet;

[0029] 20. Anode structure; 21. Anode substrate; 22. Anode sheet; 23. Locking member;

[0030] 30. Ion exchange structure; 31. Outer frame; 32. Ion exchange membrane;

[0031] 40. Connecting member; 41. Insulating washer. Detailed implementation manners

[0032] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0033] Please refer to Figure 1 and Figure 2 simultaneously. Now, the electrode module for an ozone generator provided by the present utility model will be described. The electrode module for an ozone generator includes a cathode structure 10, an anode structure 20 and an ion exchange structure 30. The anode structure 20 is arranged at an interval from the cathode structure 10 and is fixedly connected to the cathode structure 10 through a connecting member 40. The anode structure 20 has an oxygen generation part, and each oxygen generation part is electrically connected to the positive electrode of an external power supply module respectively. The ion exchange structure 30 is located between the cathode structure 10 and each oxygen generation part and is fixedly connected to the connecting member 40.

[0034] Compared with the prior art, for the electrode module for an ozone generator provided in this embodiment, by arranging the ion exchange structure 30 between the cathode structure 10 and the anode structure 20, it can ensure the interception of hydrogen generated on the cathode structure 10, effectively avoid mixing with ozone generated on the anode structure 20, and thus ensure the purity of ozone. A plurality of oxygen generation parts are arranged on the anode structure 20, and the plurality of oxygen generation parts are respectively and independently connected to the positive electrode of the power supply module, which can correspondingly reduce the volume. At the same time, through the structure of jointly carrying current and evenly distributing the current density, the electrolysis efficiency is improved, and the practicability is strong.

[0035] A further explanation of this embodiment is that the electrode module for the ozone generator can mainly partition the water tank / cavity in the ozone generator into an anode chamber and a cathode chamber through an ion bond exchange structure. And the ion exchange structure 30 only allows hydrogen ions in the anode chamber to pass through and enter the cathode chamber. In addition, the cathode reaction occurring at the cathode structure 10 is: 2H + + 2e − → H 2 . The anode reaction occurring at the anode structure 20 is: 3H2O → O3 + 6H + .

[0036] In some embodiments, the above anode structure 20 can adopt the structures shown in Figure 1 and Figure 2 . Referring to Figure 1 and Figure 2 , the anode structure 20 includes an anode substrate 21 and anode plates 22. There are multiple anode plates 22, and each anode plate 22 is arranged in a matrix on the anode substrate 21 and is fixedly connected to the anode substrate 21 through a locking member 23. Each anode plate 22 is an oxygen generation part.

[0037] Using multiple parallel-connected anode plates 22 as the anode can provide higher current handling capacity while maintaining good electrochemical stability. The significance of the parallel connection of each anode plate 22 is that they can jointly carry current and evenly distribute the current density, thereby increasing the charge transfer rate during the electrolysis process, and further ensuring the electrolysis efficiency under the conditions of low voltage and small volume.

[0038] In this embodiment, each anode plate 22 is spaced from the anode substrate 21, which can be specifically achieved by a gasket provided between the anode substrate 21 and the anode plate 22 for the locking member 23 to pass through.

[0039] It should be noted that the anode substrate 21 can be a rectangular plate, and the corresponding anode plate 22 can be a rectangular sheet structure. In addition, in order to ensure an increased contact area between each anode plate 22 and water, multiple perforations can be provided on each anode plate 22.

[0040] In addition, in some embodiments, the above anode substrate 21 can adopt the structure shown in Figure 1 . Referring to Figure 1 , there are several through long strip openings provided on the anode substrate 21 to ensure the smooth flow of gas and liquid and enhance the fluidity.

[0041] In some embodiments, the above locking member 23 can adopt the structure shown in Figure 2 . Referring to Figure 2, the locking member 23 is a locking bolt. The structure of the locking bolt can facilitate the connection of the anode plate 22, and at the same time, the structure is simple and easy to operate. The locking bolt needs to be made of metal, so that each locking bolt can be electrically connected to the positive electrode of the power module in the ozone generator.

[0042] In some embodiments, the above-mentioned anode plate 22 can adopt the structure as Figure 2 shown. Refer to Figure 2 , a through hole for the locking bolt to pass through is provided on each anode plate 22, and a plurality of threaded holes for the locking bolt to be threadedly connected are provided on the anode substrate 21. This structure is convenient for manufacturing.

[0043] In some embodiments, the above-mentioned anode structure 20 can adopt the structure as Figure 2 shown. Refer to Figure 2 , the anode substrate 21 is made of non-metallic material, and the anode plate 22 is a diamond plate.

[0044] The non-metallic anode substrate 21 can ensure that each electrode plate is independently arranged, thereby ensuring the parallel connection of each electrode plate and ensuring the electrolysis efficiency. The diamond plate is used as the anode plate 22, which has corrosion resistance, high electrochemical stability, and excellent electrical conductivity to ensure the electrolysis effect.

[0045] In this embodiment, the anode substrate 21 is made of non-metallic material based on acid and alkali corrosion resistance, such as a fiberglass board.

[0046] In some embodiments, the above-mentioned connecting member 40 can adopt the structure as Figure 1 and Figure 2 shown. Refer to Figure 1 and Figure 2 , there are a plurality of connecting members 40, and each connecting member 40 is evenly arranged on the anode structure 20, and each connecting member 40 is a locking bolt.

[0047] Specifically, an insulating washer 41 for the connecting member 40 to pass through is provided between the cathode structure 10, the anode structure 20 and the ion exchange structure 30.

[0048] By fixing and connecting the cathode structure 10, the anode structure 20 and the ion exchange structure 30 with a plurality of connecting members 40, it can be ensured that the three are an integral structure and are arranged at intervals in sequence, which is convenient for disassembly and assembly on the ozone generator. At the same time, the setting of the locking bolt has low cost and convenient disassembly and assembly.

[0049] In some embodiments, the above-mentioned locking bolt can adopt the structure as Figures 1 to 2 shown. Refer to Figures 1 to 2, except that one of the locking bolts is made of metal, the other locking bolts are all made of metal. The insulating connection between the cathode structure 10 and the anode structure 20 can be ensured by the locking bolts made of non-metallic materials, thereby ensuring the electrolysis effect. In addition, one of the locking bolts is made of metal, which can ensure the electrical connection with the power module of the ozone generator, enabling more convenient connection, ensuring that the electrical wires of the cathode and the anode are both located in the anode chamber, and facilitating disassembly and connection.

[0050] In some embodiments, the above-mentioned cathode structure 10 may adopt the structure as Figure 2 shown. Refer to Figure 2 , the cathode structure 10 includes a cathode substrate 11 and a titanium felt sheet 12. The cathode substrate 11 is connected to the cathode structure 10 through a connecting member 40. The titanium felt sheet 12 is disposed on the cathode substrate 11. Titanium felt is a non-woven material composed of titanium fibers, which is usually used in applications with high temperature resistance, corrosion resistance and high strength. It is formed by the interlaced arrangement of countless fine titanium fibers, forming a felt-like structure. Titanium felt has the characteristics of high temperature resistance, corrosion resistance, high strength, excellent electrical conductivity and low resistivity.

[0051] The cathode substrate 11 may be made of stainless steel and is a rectangular plate body.

[0052] In addition, in some embodiments, the above-mentioned cathode substrate 11 may adopt the structure as Figure 2 shown. Refer to Figure 2 , a plurality of through long strip openings are provided on both the cathode substrate 11 and the titanium felt plate to ensure the smooth flow of gas and liquid and enhance fluidity.

[0053] In some embodiments, the above-mentioned ion exchange membrane 32 may adopt the structure as Figures 1 to 2 shown. Refer to Figures 1 to 2 , the ion exchange structure 30 includes an outer frame 31 and an ion exchange membrane 32. The outer frame 31 has a frame opening, and the outer frame 31 is for connecting the connecting member 40. The ion exchange membrane 32 is fixedly arranged in the frame opening. The outer frame 31 can ensure the connection with the ozone generator, while the ion exchange membrane 32 only allows hydrogen ions to pass through, thereby preventing the generated ozone from mixing into hydrogen and ensuring the ozone concentration.

[0054] It should be noted that a sliding opening for the outer frame 31 to be hermetically clamped may be provided in the water tank / cavity of the ozone generator, so as to fixedly connect the combination of the cathode structure 10, the anode structure 20 and the ion exchange structure 30 through the outer frame 31, and the size of the outer frame 31 may be larger than the sizes of the cathode structure 10 and the anode structure 20.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Electrode module for ozone generator, characterized in that, Comprising: A cathode structure; An anode structure, spaced apart from the cathode structure and fixedly connected to the cathode structure through a connecting member. An oxygen generation portion is provided on the anode structure, and each of the oxygen generation portions is electrically connected to the positive electrode of an external power supply module; An ion exchange structure, located between the cathode structure and each of the oxygen generation portions and fixedly connected to the connecting member.

2. The electrode module for an ozone generator according to claim 1, characterized in that, The anode structure includes: An anode substrate; Anode sheets, a plurality of which are provided. Each of the anode sheets is arranged in a matrix on the anode substrate and fixedly connected to the anode substrate through a locking member. Each of the anode sheets is the oxygen generation portion.

3. The electrode module for an ozone generator according to claim 2, characterized in that, The locking member is a locking bolt.

4. The electrode module for an ozone generator according to claim 3, wherein, Each of the anode sheets is provided with a through hole for the locking bolt to pass through, and the anode substrate is provided with a plurality of threaded holes for the locking bolt to be threadedly connected.

5. The electrode module for an ozone generator according to claim 2, characterized in that, The anode substrate is made of a non-metallic material, and the anode sheets are diamond sheets.

6. The electrode module for an ozone generator according to claim 1, characterized in that, A plurality of the connecting members are provided, and each of the connecting members is evenly arranged on the anode structure. Each of the connecting members is a locking bolt; Wherein, insulating washers for the connecting members to pass through are provided between the cathode structure, the anode structure and the ion exchange structure.

7. The electrode module for an ozone generator according to claim 6, wherein, Except that one of the locking bolts is made of metal, the other locking bolts are all made of metal.

8. The electrode module for an ozone generator according to claim 1, wherein The cathode structure includes: A cathode substrate, connected to the cathode structure through the connecting member; A titanium felt sheet, arranged on the cathode substrate.

9. The electrode module for an ozone generator according to claim 6, wherein, The ion exchange structure includes: An outer frame, having a frame opening, and the outer frame is for connecting the connecting member; An ion exchange membrane, fixedly arranged in the frame opening.

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