An electrolysis module and integrated electrolysis assembly

Abstract

This application discloses an electrolysis module and an integrated electrolysis assembly. The electrolysis module includes a first chamber and a second chamber with a second electrode. At least a portion of the peripheral wall of the first chamber is configured as the first electrode, and the cross-section of the first electrode encloses the electrolyzed raw water within it. A water-dispersing component is disposed within the first chamber, adjacent to the peripheral wall of the first chamber configured as the first electrode, to direct the electrolyzed raw water to the first electrode. The second chamber is disposed outside the first chamber. This invention configures the peripheral wall of the first chamber as the first electrode, ensuring sufficient electrolysis area even with a limited volume of the electrolysis module. Furthermore, at the inlet flow rate of everyday water, the electrolyzed raw water enters the electrolysis module in a turbulent manner. Under the influence of the turbulent and irregular flow field, the electrolyzed raw water continuously impacts the first electrode enclosing it, participating in electrolysis. Therefore, the electrolysis efficiency of this invention is also guaranteed.

Description

Technical Field

[0001] This application belongs to the field of electrolysis technology, specifically relating to an electrolysis module and an integrated electrolysis assembly. Background Technology

[0002] In the existing electrolysis modules, the electrodes are often sheet-like structures for easy installation. Therefore, for scenarios that require increased electrolysis area, the electrolysis module occupies a large volume as the sheet electrodes are continuously accumulated. If it is applied to real-life scenarios, the electrolysis area is relatively small due to volume constraints, and the output of electrolysis products cannot meet the actual needs of users, which greatly limits the promotion and popularization of related equipment. Utility Model Content

[0003] The technical problem to be solved by this application is to provide an electrolysis module that increases the electrolysis area and thus ensures electrolysis efficiency by configuring the peripheral wall of the first chamber as the first electrode.

[0004] Another technical problem to be solved by this application is to provide an integrated electrolysis assembly using the above-mentioned electrolysis module.

[0005] To solve the above-mentioned technical problems, this application provides the following technical solution:

[0006] An electrolysis module includes a first chamber and a second chamber provided with a second electrode. At least a portion of the peripheral wall of the first chamber is configured as the first electrode, and the cross-section of the first electrode encloses the electrolyzed raw water inside.

[0007] A water-dispensing device is provided in the first chamber. The water-dispensing device is located near the peripheral wall of the first chamber, which is configured as the first electrode, so as to dispense the electrolyzed raw water to the first electrode. A second chamber is provided outside the first chamber.

[0008] Furthermore, the input terminal of the electrolysis module is located at least in the first chamber.

[0009] Furthermore, the input terminal of the electrolysis module and at least one of its output terminals are located on different sides of the first chamber.

[0010] Furthermore, the cross-section of the first electrode is closed, and the second chamber is sleeved outside the first chamber and disposed adjacent to it;

[0011] Both the first and second electrodes have several diffusion holes extending through them along their thickness direction.

[0012] Furthermore, a gas check unit is provided between the first chamber and the second chamber;

[0013] The first chamber is provided with a first output terminal, and the second chamber is provided with a second output terminal.

[0014] Furthermore, the input terminal of the electrolysis module is only located in the first chamber, and the second output terminal is connected to the outside of the first chamber to output at least the gaseous products in the second chamber.

[0015] Furthermore, the first electrode is configured as an anode, the gas check valve is configured as an ion channel for cations, and the second electrode is configured as a cathode.

[0016] Furthermore, the first electrode is configured as a cathode, the gas check valve is configured as an anion channel, and the second electrode is configured as an anode.

[0017] Furthermore, the electrolysis module is equipped with a flow rate regulating device on the water inlet side, and the flow rate of the electrolyzed raw water output by the flow rate regulating device is greater than the flow rate of the electrolyzed raw water input to the flow rate regulating device.

[0018] Furthermore, the first chamber extends in a spiral shape.

[0019] To solve another technical problem, this application adopts the following technical solution:

[0020] An integrated electrolysis assembly includes a first electrolysis module and a second electrolysis module, which respectively focus on outputting anodic products and cathode products;

[0021] At least one electrolysis module uses the electrolysis module described above.

[0022] Furthermore, the first electrolysis module and the second electrolysis module are connected in series on the same water flow path.

[0023] After adopting the above technical solution, the present invention has the following beneficial effects:

[0024] 1. In this invention, the peripheral wall of the first chamber is configured as the first electrode, which fully guarantees the electrolysis area when the volume of the electrolysis module is limited. On the other hand, under the inlet flow rate of daily water use, the raw water for electrolysis enters the electrolysis module in the form of turbulent flow. Under the action of the turbulent and irregular flow field, the raw water for electrolysis will continuously collide with the first electrode surrounding it and participate in electrolysis. Therefore, the electrolysis efficiency of this invention can also be guaranteed.

[0025] 2. The present invention is provided with a water-dispensing component in the first chamber to dispense the electrolyzed raw water to the first electrode to participate in electrolysis, or to use centrifugal force to throw the electrolyzed raw water to the first electrode to participate in the electrode, thereby further promoting the electrolysis efficiency at the first electrode.

[0026] 3. Considering that the nature of turbulence is related to the flow velocity, this utility model also provides a flow velocity adjustment device on the water inlet side of the electrolysis module to increase the water inlet flow velocity, thereby increasing the effect of irregular flow field, so that the raw water in the first chamber can participate in electrolysis more fully at the first electrode. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a cross-sectional schematic diagram of the electrolysis module in one embodiment of this application;

[0030] Figure 2 This is a cross-sectional schematic diagram of the electrolysis module in another embodiment of this application;

[0031] Figure 3 This is a cross-sectional schematic diagram of the electrolysis module in another embodiment of this application;

[0032] Figure 4 This is a schematic diagram of a spirally extended electrolysis module in another embodiment of this application;

[0033] Figure 5 This is a schematic diagram of the integrated electrolysis assembly of this application;

[0034] Figure 6 This is a cross-sectional diagram of part A.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. First chamber; 11. First output terminal; 12. Input terminal; 13. First electrode; 2. Second chamber; 21. Second output terminal; 22. Second electrode; 3. Gas check valve unit; 4. Water deflector; 41. Shaft; 42. Blade; 5. Diffuser hole; 6. Flow rate regulating device; 61. First inlet; 62. First outlet; 63. Second outlet; 7. First electrolysis module; 8. Second electrolysis module; 9. Conductive connector. Detailed Implementation

[0037] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0039] In existing technologies, the electrodes of electrolysis modules are often sheet-like structures. If the electrolysis area is to be increased, the volume of the electrolysis module will increase accordingly with the increase of electrode length. However, since the volume of the electrolysis module is limited in many application scenarios, its promotion and popularization are greatly restricted.

[0040] In view of this, such as Figure 1-4 As shown, this utility model provides an electrolysis module, including a first chamber 1 and a second chamber 2 provided with a second electrode 22, wherein at least part of the peripheral wall of the first chamber 1 is configured as the first electrode 11, and the cross-section of the first electrode 13 is wrapped around the electrolyzed raw water inside.

[0041] In this invention, the cross-section of the first electrolyzer 13 can be semi-closed or closed, encapsulating the electrolyzed raw water within it, rather than the sheet-like structure of the prior art. Compared to the sheet-like electrodes used in the prior art for ease of installation, the electrolysis module of this invention occupies a smaller volume with the same electrolysis area, making it more suitable for home use. For example, in a bathroom setting where space is limited, using sheet-like electrodes means that the electrolysis area and volume saving cannot be achieved simultaneously. Furthermore, the appearance of sheet-like electrodes does not match the water inlet pipe, which also affects aesthetics. In contrast, the electrolysis module of this invention can be directly adapted to the water inlet pipes of multiple bathroom appliances.

[0042] On the other hand, in this invention, the input terminal 12 of the electrolysis module is at least located in the first chamber 1. With this structure, under the daily water flow rate of household water, the Reynolds number of the electrolyzed raw water is relatively large, and it flows in the first chamber 1 in the form of turbulence. Under the action of the turbulent and irregular flow field, the electrolyzed raw water will continuously impact the surrounding wall of the first chamber 1. Since part of the surrounding wall of the first chamber 1 is configured as the first electrode 13, the electrolyzed raw water in this invention will actively participate in electrolysis at the first electrode 13, thus ensuring the electrolysis efficiency.

[0043] For the output end of the electrolysis module, it can be located on the same side, adjacent side, or opposite side of the input end 12 of the electrolysis module in the first chamber 1. For the structure where it is located on the same side, the raw water for electrolysis enters the first chamber 1 through the input end 12 and will inevitably change its flow direction and lose velocity when it is output through the output end. As the velocity decreases, the raw water for electrolysis gradually changes from turbulent flow to laminar flow. For laminar flow, its flow field will not cause it to collide with the peripheral wall of the first chamber 1. On the other hand, due to the velocity loss, compared with the input of the raw water for electrolysis, the generated electrolysis products cannot be output through the output end in time. Some electrolysis products that remain at the first electrode 13 may affect the electrolysis efficiency of the subsequent raw water for electrolysis. Therefore, for the structure where it is located on the same side, the electrolysis may not be sufficient.

[0044] In this application, the input terminal 12 of the electrolysis module and at least one of its output terminals are located on different sides of the first chamber 1, such as adjacent or opposite sides, to reduce flow rate loss from the input terminal 12 to the output terminal and ensure sufficient electrolysis. The first chamber 1 can be configured as an L-shaped structure or a structure with bends, or it can be configured to extend only along a single axis. In this case, the output terminal and the input terminal 12 of the electrolysis module are preferably located opposite each other on both sides of the first chamber 1. Since there is no change in flow direction, there is no flow rate loss. At this time, the raw water for electrolysis enters the first chamber 1 in a turbulent manner. After participating in electrolysis at the first electrode 13, the electrolysis products can be quickly output through the output terminal, and the electrolysis efficiency can be fully guaranteed.

[0045] As the number of first electrodes 13 whose circumferential extension directions are not on the same straight line increases, the first electrodes 13 that enclose the electrolyzed raw water gradually change from a semi-closed state to a closed state, and the electrolysis area under the same volume further increases. At this time, the cross-section of the first chamber 1 can be set as a polygon formed by splicing multiple segments of first electrodes 13. Alternatively, in order to further ensure the electrolysis efficiency of the turbulent electrolysis of raw water, the cross-section of the first chamber 1 is preferably set as a circle, and the circumferential extension direction of the first electrode 13 is the tangent direction at this point. For the first electrode 13 with a circular cross-section, the circumferential extension direction at any point is not on the same straight line.

[0046] For the second chamber 2, since this invention needs to utilize turbulent properties, in order to ensure the smooth flow of water in the first chamber 1, the second chamber 2 is set outside the first chamber 1. After the raw water participates in electrolysis at the first electrode 13, under the action of the electrolysis voltage, the ions move to the second electrode 22 in the second chamber 2 and continue to participate in electrolysis.

[0047] During electrolysis, as the distance between the first electrode 13 and the second electrode 22 increases, the voltage required for electrolysis also increases to drive ions to move from one electrode to another to participate in electrolysis. Therefore, in this invention, at least a portion of the first electrode 13 is provided with a second chamber 2 adjacent to it on the outside, so as to minimize the distance between the first electrode 13 and the second electrode 22. When the cross-section of the first electrode 13 is closed, the second chamber 2 is sleeved on the outside of the first chamber 1 and is provided adjacent to it.

[0048] Furthermore, both the first electrode 13 and the second electrode 22 are provided with diffusion holes 5 through their thickness direction. Ions can directly enter the second chamber 2 through the diffusion holes 5 to participate in electrolysis, and their movement path is further shortened. Gaseous products such as hydrogen and oxygen generated during electrolysis can also directly escape through the diffusion holes 5.

[0049] When the second chamber 2 is fitted outside the first chamber 1, the first chamber 1 and the second chamber 2 are preferably coaxially arranged to ensure the aesthetic appearance of the electrolysis module. On the other hand, the inner first chamber 1 and the outer second chamber 2 need to be staggered in some areas so that the first electrode 13 can extend outward with a conductive connector 9 to connect to the power supply unit of electrolysis.

[0050] Regarding the power supply unit of the electrolysis module, it can be set to battery power or external power source such as a power bank; this utility model does not impose any restrictions here.

[0051] When the periphery of the first chamber 1 is configured as the first electrode 13, the electrolysis area reaches its peak under volume constraints. At this point, in order to further improve the electrolysis efficiency, it is necessary to promote the contact between the electrolyzed raw water and the first electrode 13.

[0052] Therefore, in one embodiment of the present invention, in addition to utilizing the properties of turbulence, a water-dispersing component 4 is provided in the first chamber 1, and the water-dispersing component 4 is disposed near the peripheral wall of the first chamber 1 which is configured as the first electrode 13, so as to dissipate the electrolyzed raw water to the first electrode 13 to participate in electrolysis.

[0053] Specifically, such as Figure 1As shown, the water-dispensing component 4 is provided with a shaft 41 extending along the peripheral wall of the first chamber 1. A spirally extending blade 42 is provided on the outer peripheral wall of the shaft 41. There can be one blade 42 or multiple blades 42. When the electrolyzed raw water enters the first chamber 1, the blades 42 guide the electrolyzed raw water, that is, the electrolyzed raw water flows spirally in the first chamber 1. Under the action of centrifugal force, the electrolyzed raw water continuously impacts the first electrode 13 surrounding it and participates in electrolysis.

[0054] Or, such as Figure 2 As shown, in addition to using a spiral forward motion to make the electrolyzed raw water impact the first electrode 13 by using centrifugal force, the water-distributing component 4 can also be directly set as a water-dividing structure to distribute the electrolyzed raw water to the first electrode 13. As the flow area decreases, the flow rate of the electrolyzed raw water increases accordingly, and its turbulent properties become more pronounced. On the other hand, with the water-distributing component 4 in the form of a water-dividing structure set in the first chamber 1, the inner diameter of the first electrode 13 increases accordingly. Compared with the structure with a smaller inner diameter to increase the flow rate of the electrolyzed raw water, the electrolysis area is larger in this embodiment, and the larger electrode size is easier to manufacture and install.

[0055] As the flow rate increases, the turbulent properties of the electrolyzed raw water become more pronounced. Therefore, in addition to setting a water-dispensing component 4 in the first chamber 1, a flow rate regulating device 6 can also be set on the water inlet side of the electrolysis module. The flow rate of the electrolyzed raw water output by the flow rate regulating device 6 is greater than the flow rate input to the flow rate regulating device 6.

[0056] Specifically, such as Figure 3 As shown, the flow rate regulating device 6 can be configured as a variable cross-section structure, with its inner diameter gradually decreasing along the direction close to the electrolysis module, in order to increase the flow rate of the electrolyzed raw water.

[0057] Furthermore, in addition to the first inlet 61 and the first outlet 62, the flow rate regulating device 6 may also be provided with a second outlet 63 on the side adjacent to the electrolysis module. The cross-sectional area of ​​the second outlet 63 is larger than that of the first outlet 62, but the distance between the second outlet 63 and the first outlet 62 is smaller than the distance between the first inlet 61 and the first outlet 62. This ensures that the outflow velocity is greater than the inflow velocity and also guides the electrolyzed raw water, directing its velocity towards the periphery of the first chamber 1.

[0058] Alternatively, in another embodiment of this utility model, such as Figure 4 As shown, the electrolysis module itself is designed with a spiral structure. Even without the water-dispelling component 4, the raw water in the first chamber 1 can still be electrolyzed by centrifugal force to impact the first electrode 13 and participate in electrolysis.

[0059] The electrolysis module of this invention can be installed inside the water inlet pipe or between two pipes to connect the two pipes. Alternatively, multiple electrolysis modules connected in series can also serve as water inlet pipes themselves.

[0060] Specifically, the electrolysis module has a first connection part on the water inlet side and a second connection part on the water outlet side. The electrolysis module is connected to its adjacent structure through the first connection part and the second connection part, for example, by flange or threaded connection. When multiple electrolysis modules are connected in series, the electrolysis area can be fully guaranteed. The adjacent structure on the water inlet side of the electrolysis module is connected to the first chamber 1 through its input end 12 to transport the turbulent electrolyzed raw water into the first chamber 1 to participate in electrolysis.

[0061] The electrolysis module of this invention can output electrolysis products in a mixed-flow manner. In this case, the electrolysis space within the electrolysis module is a whole. After the turbulent electrolysis raw water participates in electrolysis at the first electrode 13, it continues to enter the second chamber 2 outside the first electrode 13 under the action of the flow field or centrifugal force, and continues to participate in electrolysis at the second electrode 22. However, since the cathode products and anode products react with each other rapidly during electrolysis, the actual output amount of required electrolysis products is relatively small. Even if the electrolysis area is increased, it may still not meet the user's needs.

[0062] In one embodiment of this utility model, the first chamber 1 and the second chamber 2 are separated by a gas check unit 3. That is, the oxygen generated at the anode during electrolysis cannot enter the adjacent chamber and consume the cathode product, and the hydrogen generated at the cathode cannot enter the adjacent chamber and consume the anode product due to the blockage of the gas check unit 3. The required amount of electrolytic product output can be guaranteed.

[0063] However, in the split-flow mode, the first chamber 1 and the second chamber 2 need to be respectively equipped with a first output terminal 11 and a second output terminal 21 for outputting cathode products and anode products. In this output mode, for scenarios that require the use of cathode products, such as outputting hydrogen-rich water for drinking, the anode products are waste and require additional processing by the user, such as disposal or storage; for scenarios that require the use of anode products, the cathode products are waste and require additional processing by the user.

[0064] Therefore, in another embodiment of this utility model, in order to avoid the need for additional processing by the user, the input terminal 12 of the electrolysis module is only located in the first chamber 1, and the second output terminal 21 is connected to the outside of the first chamber 1, so as to output at least the gaseous products in the second chamber 2 and avoid consuming the electrolysis products in the first chamber 1.

[0065] Since there is no input of electrolyzed raw water in the second chamber 2, the gaseous products generated therein will diffuse into the air on their own even if they are output through the second output terminal 21, without the need for additional treatment by the user. However, in order to prevent the second electrode 22 from burning out, the gas check unit 3 must also allow the water in the first chamber 1 to pass through and enter the second chamber 2. The water can pass directly through the gas check unit 3, such as an ultrafiltration membrane, or it can pass through the gas check unit 3 in the form of hydrated ions. For example, the gas check unit 3 can be configured as an ion channel for anions or cations and their hydrated ions. During the electrolysis process, the hydrated ions pass through the gas check unit 3 and enter the second chamber 2, which can prevent the second electrode 22 from burning out.

[0066] Considering that when water flows directly through the gas check unit 3, although the gas check unit 3 can prevent gas from entering the adjacent chamber and consuming the electrolysis products, the products dissolved in the water can still react with each other. Therefore, this form limits the improvement of the required electrolysis product indicators.

[0067] When dry burning prevention is achieved in the form of hydrated ions, the gas check unit 3 can adopt the structural form of porous materials such as ion exchange membrane, molecular sieve, nanochannel or porous ceramic to form ion channels and realize unidirectional ion displacement.

[0068] Specifically, the first electrode 13 is configured as the anode, the gas check unit 3 is configured as an ion channel for cations, such as a cation exchange membrane, molecular sieve, nanochannel or porous material, and the second electrode 22 is configured as the cathode, wherein the cation exchange membrane is preferably a proton exchange membrane.

[0069] At this time, the raw water for electrolysis enters the first chamber 1 and, under the action of the flow field, impacts the first electrode 13 surrounding it and participates in electrolysis. The generated cations enter the second chamber 2 and continue to participate in electrolysis. The hydrogen generated in the second chamber 2 is discharged through the second output terminal 21 and diffuses into the air on its own without the need for additional treatment by the user.

[0070] The specific electrolysis reaction is as follows:

[0071] At the anode: 4H₂O - 4e - →O2↑+2H2O+4H + ;

[0072] At the cathode: 2H + +2e - →H2↑;

[0073] During this process, hydrogen ions and other cations carry water through the gas check unit 3 into the second chamber 2. Although this water can prevent the second electrode 22 from burning dry, if it is output through the second output terminal 21, water marks will be formed on the outside of the second chamber 2, which will reduce the user experience. Therefore, a gas-liquid separation unit such as a polytetrafluoroethylene membrane is preferably provided at the second output terminal 21. The second output terminal 21 is only used to output gas, and the remaining electrolysis products are trapped in the second chamber 2.

[0074] In the prior art, when a cation exchange membrane is set up, although water enters both chambers of the cation exchange membrane, even if the water on the cathode side participates in electrolysis, the generated hydroxide ions and other anions cannot pass through the cation exchange membrane and cannot carry out subsequent reactions. Therefore, the water on the cathode side is only used to dissolve the cathode products and output them, such as outputting hydrogen-rich water, and does not participate in electrolysis. The conversion ratio of the required electrolysis products to the amount of water is limited.

[0075] In this embodiment, since no input terminal for the input of electrolyzed raw water is provided at the second chamber 2, most of the electrolyzed raw water entering the electrolysis module participates in electrolysis in the first chamber 1, generating the required electrolysis products, except for a portion entering the second chamber 2 with the cations. Therefore, compared with the prior art, the conversion ratio of the required electrolysis products to the influent is significantly improved in this embodiment. On the other hand, compared with the electrolysis products output in the mixed flow form, the required electrolysis products generated in this invention are more numerous and consumed less by the cathode products. Therefore, the actual output amount of required electrolysis products is doubly improved, and the reference indicators such as the oxidation-reduction potential of the electrolysis products are significantly improved. For example, under the same electrolysis conditions, the electrolysis module of this invention can increase the oxidation-reduction potential of the output electrolysis products from 720mV in the mixed flow form to nearly 1000mV.

[0076] On the other hand, if a gas-liquid separation unit is provided at the second output terminal 21, the electrolysis reaction can still proceed normally when the water flow fills the second chamber 2. As the cations continue to carry water into the second chamber 2, the water already in the second chamber 2 flows back to the first chamber 1. Therefore, a larger proportion of the electrolytic raw water will participate in electrolysis in the first chamber 1 and be converted into the desired electrolysis product.

[0077] Alternatively, a small amount of water can be pre-stored in the second chamber 2 to prevent the second electrode 22 from burning dry. As the remaining space in the second chamber 2 decreases, the amount of water required to fill the second chamber 2 for electrolysis decreases. Therefore, a larger proportion of the water will participate in electrolysis in the first chamber 1 and be converted into the desired electrolysis products.

[0078] For scenarios requiring the use of cathode products, the first electrode 13 needs to be configured as a cathode, the gas check unit 3 is configured as an ion channel for anions, such as an anion exchange membrane, molecular sieve, nanochannel or porous material, and the second electrode 22 is configured as an anode accordingly.

[0079] At this time, the raw water enters the first chamber 1 and, under the action of the flow field, impacts the cathode surrounding it and participates in electrolysis. The generated anions enter the second chamber 2 and continue to participate in electrolysis. The oxygen generated in the second chamber 2 is discharged through the second output terminal 21 and diffuses into the air on its own without the need for additional treatment by the user.

[0080] During this process, anions such as hydroxide ions carry water through the gas check valve unit 3 and enter the second chamber 2. In addition, water is also generated in the second chamber 2 during the electrolysis process. The above properties can prevent the anode in the second chamber 2 from drying out. However, if the water is output through the second output terminal 21, water marks will be formed on the outside of the second chamber 2, which will reduce the user experience. Therefore, a gas-liquid separation unit such as a polytetrafluoroethylene membrane is preferably provided at the second output terminal 21. The second output terminal 21 is only used to output gas, and the remaining electrolysis products are retained in the second chamber 2.

[0081] The specific electrolysis reaction is as follows:

[0082] At the cathode: 2H₂O + 2e - →2H₂↑+2OH⁻ - ;

[0083] Anode: 4OH - -4e - →2H₂O + O₂↑;

[0084] In existing technologies, when an anion exchange membrane is installed, although water enters at both the cathode and anode, even if the water on the anode side participates in electrolysis, the generated hydrogen ions and other cations cannot pass through the anion exchange membrane, and subsequent reactions cannot proceed. Therefore, the water on the anode side is only used to dissolve anode products such as oxygen and ozone to output electrolytic products with high oxidation capacity, and does not participate in electrolysis. The conversion ratio of the required electrolytic products to the amount of water is limited.

[0085] In this embodiment, most of the raw water undergoes electrolysis in the first chamber 1 to generate the required electrolytic products. Therefore, compared with the prior art, the conversion ratio of the required electrolytic products to the influent is significantly improved in this embodiment. On the other hand, compared with the electrolytic products output in the mixed flow mode, the required electrolytic products generated in this invention are more numerous and consumed less by the anode products. Therefore, the actual output amount of required electrolytic products is doubly improved. The reference indicators such as hydrogen content and pH value of the electrolytic products are optimized. For example, under the same electrolysis conditions, the output cathode product of this invention can be increased to 1.2 mg / L, and its oxidation-reduction potential can be optimized from -120 mV in the mixed flow state to nearly -500 mV.

[0086] On the other hand, if a gas-liquid separation unit is provided at the second output terminal 21, the electrolysis reaction can still proceed normally when the water flow fills the second chamber 2. As anions such as hydroxide ions continue to carry water into the second chamber 2, the water already in the second chamber 2 flows back to the first chamber 1. Therefore, a larger proportion of the electrolytic raw water will participate in electrolysis in the first chamber 1 and be converted into the desired electrolysis products.

[0087] Alternatively, a small amount of water can be pre-stored in the second chamber 2 to prevent the second electrode 22 from burning dry. As the remaining space in the second chamber 2 decreases, the amount of water required to fill the second chamber 2 for electrolysis decreases. Therefore, a larger proportion of the water will participate in electrolysis in the first chamber 1 and be converted into the desired electrolysis products.

[0088] Furthermore, in this invention, the first electrode 13, the gas check unit 3, and the second electrode 22 are sequentially attached from the inside to the outside. The gas check unit 3 prevents the first electrode 13 and the second electrode 22 from directly contacting each other and causing a short circuit. It also minimizes the distance between the two electrodes and reduces the required power supply voltage. At this time, the first electrode 13 and the second electrode 22 are each provided with at least one diffusion hole 5. Ions in the first chamber 1 enter the second electrode 22 in the second chamber 2 through the diffusion hole 5 and the gas check unit 3 to continue participating in electrolysis. During this process, gases such as hydrogen and oxygen generated can also diffuse through the diffusion hole 5 to prevent accumulation.

[0089] The input terminal 12 and the first output terminal 11 can be located on the same side, adjacent side or opposite side of the first chamber 1. When they are located on the same side or adjacent side, the electrolyzed raw water entering the first chamber 1 through the input terminal 12 must change its flow direction before it can be output through the first output terminal 11, resulting in a loss of flow rate, which is not conducive to the output efficiency of electrolysis products.

[0090] Therefore, the input end 12 and the first output end 11 are preferably located on opposite sides of the first chamber 1. The electrolyzed raw water entering the first chamber 1 through the input end 12 continuously impacts the first electrode 13 surrounding it under the action of the flow field and the water-dispelling component 4, and participates in electrolysis. Then, the electrolysis products do not need to change the flow direction and are output through the first output end 11. During this period, there is no loss of flow rate, and the output efficiency of the electrolysis products can be guaranteed.

[0091] Because the electrolysis module of this invention only focuses on outputting the electrolysis products within the first chamber 1, specifically, when the first electrode 13 is configured as the anode, it focuses on outputting the anode products; when the first electrode 13 is configured as the cathode, it focuses on outputting the cathode products. To increase the number of application scenarios, such as... Figure 5 and Figure 6As shown, this utility model also provides an integrated electrolysis assembly, including a first electrolysis module 7 and a second electrolysis module 8 that respectively focus on outputting anode products and cathode products, and at least one electrolysis module adopts the above-mentioned electrolysis module.

[0092] For example, if the first electrolysis module 7 focuses on outputting anodic products, then the first electrode 13 is the anode and the second electrode 22 is the cathode. In the same case, if the second electrolysis module 8 focuses on outputting cathode products, then the first electrode 13 is the cathode and the second electrode 22 is the anode.

[0093] To reduce the size of the integrated electrolysis unit, the first electrolysis module 7 and the second electrolysis module 8 are connected in series on the same water flow path in this utility model. For users, they only need to connect the first electrolysis module 7 and the second electrolysis module 8 to the water inlet pipe through flange connection, threaded connection or other means, and then they can use the anode product or the cathode product according to their needs.

[0094] With this structure, regardless of whether the user needs to use anode products or cathode products, the output can be guaranteed while ensuring the required electrolytic product to influent conversion ratio. This not only guarantees the relevant indicators of the output electrolytic products but also saves water resources.

[0095] It should be noted that the first electrolysis module 7 and the second electrolysis module 8 should be used at different times.

[0096] The above are merely preferred embodiments of this application. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. An electrolysis module, characterized in that, It includes a first chamber and a second chamber provided with a second electrode. The peripheral wall of the first chamber is at least partially configured as the first electrode, and the cross-section of the first electrode is wrapped around the electrolyzed raw water inside. A water-dispensing device is provided in the first chamber. The water-dispensing device is located near the peripheral wall of the first chamber, which is configured as the first electrode, so as to dispense the electrolyzed raw water to the first electrode. A second chamber is provided outside the first chamber.

2. An electrolysis module according to claim 1, characterized in that, The input terminal of the electrolysis module is located at least in the first chamber.

3. An electrolysis module according to claim 2, characterized in that, The input terminal of the electrolysis module and at least one of its output terminals are located on different sides of the first chamber.

4. An electrolysis module according to claim 2, characterized in that, The first electrode has a closed cross-section, and the second chamber is fitted outside the first chamber and is disposed adjacent to it; Both the first and second electrodes have several diffusion holes extending through them along their thickness direction.

5. An electrolysis module according to claim 1, characterized in that, A gas check unit is provided between the first chamber and the second chamber; The first chamber is provided with a first output terminal, and the second chamber is provided with a second output terminal.

6. An electrolysis module according to claim 5, characterized in that, The input terminal of the electrolysis module is located only in the first chamber, and the second output terminal is connected to the outside of the first chamber to output at least the gaseous products in the second chamber.

7. An electrolysis module according to claim 6, characterized in that, The first electrode is configured as an anode, the gas check valve is configured as an ion channel for cations, and the second electrode is configured as a cathode.

8. An electrolysis module according to claim 6, characterized in that, The first electrode is configured as a cathode, the gas check valve is configured as an ion channel for anions, and the second electrode is configured as an anode.

9. An electrolysis module according to claim 1, characterized in that, The electrolysis module is equipped with a flow rate regulating device on the water inlet side. The flow rate of the electrolyzed raw water output by the flow rate regulating device is greater than the flow rate of the electrolyzed raw water input to the flow rate regulating device.

10. An electrolysis module according to claim 1, characterized in that, The first chamber extends in a spiral shape.

11. An integrated electrolysis assembly, characterized in that, This includes a first electrolysis module and a second electrolysis module, which respectively focus on outputting anodic and cathodic products; At least one electrolysis module adopts the electrolysis module according to any one of claims 1-10.

12. An integrated electrolysis assembly according to claim 11, characterized in that, The first electrolysis module and the second electrolysis module are connected in series on the same water flow path.

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