Electrode module for preparing ozone based on low-voltage electrolyzed water

Abstract

The utility model provides an electrode module for preparing ozone based on low-voltage electrolyzed water. The electrode module comprises a cathode plate, an anode plate and an auxiliary electrode plate, wherein the cathode plate and the anode plate are electrically connected with a reverse electrode circuit respectively; and the auxiliary electrode plate is positioned between the cathode plate and the anode plate. And after the surface of the cathode plate is scaled, the cathode plate is converted into an anode through a reverse electrode circuit, and the auxiliary electrode plate is converted into a cathode. According to the electrode module for preparing the ozone based on the low-voltage electrolyzed water, the cathode plate is converted into the anode through the reverse electrode circuit, the auxiliary electrode plate is converted into the cathode, it can be guaranteed that scaling on the cathode plate is removed, meanwhile, the anode plate can be protected, the service life of the anode plate can be prolonged, the maintenance cost is reduced, and the service life of the anode plate is prolonged. The practicability is high.

Description

Technical Field

[0001] This invention belongs to the field of electrolysis electrode technology, specifically relating to an electrode module for ozone preparation based on low-pressure water electrolysis. Background Technology

[0002] Ozone is typically produced via electrolysis. This method involves selecting an anode electrode with a high oxygen evolution potential and a stable cathode electrode, and then using low-voltage direct current to electrolyze an oxygen-containing electrolyte, thereby generating ozone at the anode. The use of titanium-based substrates coated with noble metal catalysts as the anode for tap water electrolysis is widely applied in water purification, disinfection, and sterilization. However, scale builds up on the cathode surface during tap water electrolysis, and this scale is difficult to remove, significantly impacting the electrolysis efficiency of the device.

[0003] In existing technologies, the common method is to reverse the polarity, that is, to interchange the polarities of the cathode and anode through an external reversal circuit, i.e., the original anode becomes the cathode, and the original cathode becomes the anode. However, when the original anode material (such as titanium) becomes the cathode, the generation of hydrogen gas will lead to hydrogen embrittlement, which will reduce the mechanical properties of the material, shorten the life of the electrode, increase maintenance costs, and have poor practicality. Utility Model Content

[0004] This utility model provides an electrode module for ozone production based on low-pressure water electrolysis, which aims to solve the problem of poor practicality caused by the easy damage to the original anode due to the reversal of the electrode module.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an electrode module for ozone preparation based on low-pressure water electrolysis, including a cathode plate, an anode plate, and an auxiliary electrode plate located between the cathode plate and the anode plate, which are electrically connected to the inverted electrode circuit respectively;

[0006] In this process, after scale forms on the surface of the cathode plate, the cathode plate is converted into an anode and the auxiliary electrode plate is converted into a cathode through a reversal circuit.

[0007] In one possible implementation, the auxiliary electrode sheet has a plurality of vias evenly distributed on it.

[0008] In one possible implementation, at least two cathode plates are provided, and each cathode plate is arranged in parallel and spaced apart, with a gap space formed between any two adjacent cathode plates;

[0009] The number of anode plates corresponds to the number of interval spaces, each anode plate is disposed in the corresponding interval space, and an auxiliary space is formed between adjacent anode plates and cathode plates;

[0010] The number of auxiliary electrode pieces corresponds to the number of auxiliary spaces, and each auxiliary electrode piece is disposed in its corresponding auxiliary space.

[0011] In one possible implementation, there are two cathode plates, each of which is electrically connected by a first connector, and one of the cathode plates is provided with a first connecting lug.

[0012] The anode plate is provided with a second connecting lug;

[0013] The two auxiliary electrode pieces are electrically connected by a second connector, and one of the auxiliary electrode pieces is provided with a third connecting ear.

[0014] In one possible implementation, both the anode plate and each of the auxiliary electrode plates are provided with a first notch for the first connector to pass through;

[0015] The anode plate is also provided with a second notch for the second connector to pass through.

[0016] In one possible implementation, each of the cathode plates and each of the anode plates are fixedly connected by an insulating locking member.

[0017] In this implementation, the cathode plate is converted into an anode and the auxiliary electrode plate is converted into a cathode through the inverted electrode circuit. This ensures the removal of scale on the cathode plate and protects the anode plate, thereby increasing the service life of the anode plate, reducing maintenance costs, and making it highly practical. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the electrode module for ozone production based on low-pressure water electrolysis provided in this embodiment of the utility model (two cathode plates are used).

[0019] Figure 2 for Figure 1 A schematic diagram of the explosion-side structure of the electrode module for ozone production based on low-pressure water electrolysis provided in the embodiment;

[0020] Figure 3 for Figure 1 A schematic diagram of the structure of each auxiliary electrode sheet in the electrode module for ozone production based on low-pressure water electrolysis provided in the embodiment;

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Cathode plate; 11. First connector; 12. First connecting lug; 20. Anode plate; 21. Second connecting lug; 30. Auxiliary electrode plate; 31. Through hole; 32. Second connector; 33. Third connecting lug; 40. Insulating locking component. Detailed Implementation

[0023] To make the technical problem to be solved, the technical solution, and the beneficial effects of this 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] Please refer to the following: Figure 1 and Figure 2 The present invention provides an electrode module for ozone production based on low-pressure water electrolysis. The electrode module includes a cathode plate 10, an anode plate 20, and an auxiliary electrode plate 30 located between the cathode plate 10 and the anode plate 20, all electrically connected to a reversing circuit. After scaling occurs on the surface of the cathode plate 10, the reversing circuit converts the cathode plate 10 into an anode and the auxiliary electrode plate 30 into a cathode.

[0025] Specifically, the reversing circuit electrically connects the cathode plate 10, the anode plate 20, and the auxiliary electrode plate 30, respectively. After scale buildup on the cathode plate 10, the reversing circuit can convert the cathode plate 10 into an anode, convert the auxiliary electrode plate 30 into a cathode, and disconnect the electrical connection with the anode plate 20.

[0026] The electrode module for ozone production based on low-pressure water electrolysis provided in this embodiment, compared with the prior art, converts the cathode plate 10 into an anode and the auxiliary electrode plate 30 into a cathode through a reversal circuit. This ensures the removal of scale on the cathode plate 10 and protects the anode plate 20, thereby improving the service life of the anode plate 20, reducing maintenance costs, and making it highly practical.

[0027] Furthermore, the auxiliary electrode plate 30 is located between the cathode plate 10 and the anode plate 20, which ensures that after it becomes a cathode, the distance between it and the cathode plate 10 is shortened, which can reduce the ion transport distance in the electrolyte, increase the reaction rate, reduce polarization, improve mass transfer efficiency, and ensure the scale removal efficiency.

[0028] The inverted polarity circuit is existing technology and is well known to those skilled in the art, so it will not be described in detail here.

[0029] In some embodiments, the auxiliary electrode sheet 30 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The auxiliary electrode plate 30 has several through holes 31 evenly distributed on it. The through holes 31 can ensure that ions can pass through smoothly during the operation of the anode plate 20 and the cathode plate 10, thereby ensuring the preparation of ozone.

[0030] In some embodiments, the cathode plate 10 may be adopted as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2At least two cathode plates 10 are provided, and each cathode plate 10 is arranged in parallel and spaced apart, with a gap space formed between any two adjacent cathode plates 10.

[0031] The number of anode plates 20 corresponds to the number of interval spaces. Each anode plate 20 is set in the corresponding interval space, and an auxiliary space is formed between adjacent anode plates 20 and cathode plates 10.

[0032] The number of auxiliary electrode pieces 30 corresponds to the number of auxiliary spaces, and each auxiliary electrode piece 30 is set in the corresponding auxiliary space.

[0033] In this embodiment, the combined structure of the cathode plate 10, anode plate 20, and auxiliary electrode plate 30 ensures that after the reverse electrode circuit is activated, an anode plate is sandwiched between any two auxiliary electrode plates 30, placing the anode plate 20 within an equipotential region, thus further protecting the anode plate 20. Furthermore, having one more cathode plate 10 than anode plate 20 increases the current density on the anode plate 20, thereby improving the ozone generation rate.

[0034] In some embodiments, the cathode plate 10 may be adopted as follows: Figures 1 to 2 The structure shown. See also Figures 1 to 2 There are two cathode plates 10, and each cathode plate 10 is electrically connected through a first connector 11. One of the cathode plates 10 is provided with a first connector ear 12.

[0035] The anode plate 20 is provided with a second connecting ear 21.

[0036] Two auxiliary electrode pieces 30 are electrically connected through a second connector 32, and one of the auxiliary electrode pieces 30 is provided with a third connecting ear 33.

[0037] The structure of two cathode plates 10, one anode plate 20, and two auxiliary electrode plates 30 can reduce the size of the entire module while ensuring ozone production under low voltage conditions. The structure is simple and highly practical.

[0038] In this embodiment, the second connector 32 and the second connector 32 may each include a connecting bolt, a connecting nut, and a connecting washer. The connecting bolt passes through the two cathode plates 10 or the two auxiliary electrode plates 30 and is locked by the connecting nut. The connecting washer is located between the two cathode plates 10 or the two auxiliary electrode plates 30 and is sleeved on the connecting bolt. See [reference needed]. Figure 1 and Figure 3 .

[0039] The first connecting ear 12, the second connecting ear 21, and the third connecting ear 33 can be electrically connected to the reverse polarity circuit, and the first connecting ear 12, the second connecting ear 21, and the third connecting ear 33 can all be arranged in the same direction.

[0040] In some embodiments, the anode plate 20 and the anode plate 20 may be adopted as follows: Figure 1 The structure shown. See also Figure 1 The anode plate 20 and each auxiliary electrode plate 30 are provided with a first notch for the first connector 11 to pass through. The anode plate 20 is also provided with a second notch for the second connector 32 to pass through.

[0041] The first notch is designed to avoid interference with the first connector 11, while the second notch is designed to avoid interference with the second connector 32. Moreover, since the two cathode plates 10 and the two auxiliary electrode plates 30 need to be electrically connected, this structure can also ensure that the currents do not interfere with each other.

[0042] In some embodiments, the cathode plate 10 and anode plate 20 may be adopted as follows: Figure 1 and Figure 2 The structure shown. See also Figure 1 and Figure 2 Each cathode plate 10 and each anode plate 20 is fixedly connected by an insulating locking member 40. In order to ensure the stability of the cathode plate 10 and the anode plate 20, the insulating locking member 40 is used to fix the position of each cathode plate 10 and each anode plate 20.

[0043] Specifically, the insulating locking component 40 may include an insulating screw, an insulating nut, and insulating washers. The insulating screw passes through each cathode plate 10 and each anode plate 20 and is locked by the insulating nut. Multiple insulating washers are provided and distributed between each adjacent cathode plate 10 and anode plate 20 to ensure the stability of each cathode plate 10 and each anode plate 20.

[0044] In some embodiments, the cathode plate 10, anode plate 20, and auxiliary electrode plate 30 can be adopted as follows: Figure 1 The structure shown. See also Figure 1 The cathode plate 10, anode plate 20 and auxiliary electrode plate 30 can all be rectangular in shape, which facilitates manufacturing.

[0045] In some embodiments, the width of each auxiliary electrode sheet 30 may be smaller than the width of the cathode sheet 10 or the anode sheet 20, and each insulating locking member 40 is distributed on both sides of the auxiliary electrode sheet 30 in the width direction of the auxiliary electrode sheet 30, so as to ensure that the auxiliary electrode sheet 30 can be cleaned in time after adsorbing impurities on the surface, and to ensure the recycling of the auxiliary electrode sheet 30.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An electrode module for ozone production based on low-pressure water electrolysis, characterized in that, It includes a cathode plate, an anode plate, and an auxiliary electrode plate located between the cathode plate and the anode plate, all of which are electrically connected to the reversing circuit. In this process, after scale forms on the surface of the cathode plate, the cathode plate is converted into an anode and the auxiliary electrode plate is converted into a cathode through a reversal circuit.

2. The electrode module for ozone production based on low-pressure water electrolysis as described in claim 1, characterized in that, The auxiliary electrode sheet has a number of vias evenly distributed on it.

3. The electrode module for ozone production based on low-pressure water electrolysis as described in any one of claims 1-2, characterized in that, The cathode sheet is provided in at least two, and the cathode sheets are arranged in parallel and spaced apart, with a gap space formed between any two adjacent cathode sheets; The number of anode plates corresponds to the number of interval spaces, each anode plate is disposed in the corresponding interval space, and an auxiliary space is formed between adjacent anode plates and cathode plates; The number of auxiliary electrode pieces corresponds to the number of auxiliary spaces, and each auxiliary electrode piece is disposed in its corresponding auxiliary space.

4. The electrode module for ozone production based on low-pressure water electrolysis as described in claim 3, characterized in that, The cathode sheet is provided in two parts, and each cathode sheet is electrically connected by a first connector, wherein one of the cathode sheets is provided with a first connecting ear; The anode plate is provided with a second connecting lug; The two auxiliary electrode pieces are electrically connected by a second connector, and one of the auxiliary electrode pieces is provided with a third connecting ear.

5. The electrode module for ozone production based on low-pressure water electrolysis as described in claim 4, characterized in that, The anode plate and each of the auxiliary electrode plates are provided with a first notch for the first connector to pass through; The anode plate is also provided with a second notch for the second connector to pass through.

6. The electrode module for ozone production based on low-pressure water electrolysis as described in claim 3, characterized in that, Each of the cathode plates and each of the anode plates are fixedly connected by an insulating locking component.

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