An electrochemical reaction module for the continuous production of two medicaments

Abstract

This invention provides an electrochemical reaction module for the continuous preparation of two reagents. It adopts a membraneless electrolytic chamber combined with a cathode-cathode synergistic reaction system, which ingeniously couples the electrolytic preparation of HClO and H2O2 into the same electrochemical reaction module. This enables the integrated in-situ synthesis and synergistic mixing of two high-value-added oxidants. The module is simple in structure, highly efficient and energy-saving, and functionally integrated. It achieves device miniaturization and functional integration. Compared with traditional separate preparation, this invention can significantly reduce equipment operating costs, improve the performance of sterilization, disinfection and degradation of organic matter, and has higher equipment safety and automation, making it easier to achieve large-scale application.

Description

Technical Field

[0001] This utility model relates to the field of electrochemical technology, and in particular to an electrochemical reaction module for the continuous preparation of two reagents. Background Technology

[0002] Hypochlorous acid is a highly effective and broad-spectrum disinfectant, widely used in tap water and swimming pool disinfection, medical device sterilization, and food processing preservation. Hydrogen peroxide, another strong oxidizing liquid, also possesses excellent bactericidal, disinfecting, and organic matter degradation properties.

[0003] Currently, the main industrial method for preparing hypochlorous acid is electrolysis. The basic principle is to generate free hypochlorous acid through an anodic oxidation reaction in an aqueous solution containing chloride ions (such as tap water or seawater). This method suffers from drawbacks such as low electrolysis efficiency, high energy consumption, and severe equipment corrosion. Hydrogen peroxide is also primarily prepared industrially using electrolysis. The principle involves introducing oxygen onto the cathode surface, resulting in an electrocatalytic reduction reaction to produce hydrogen peroxide. The main limitations of this method are low current efficiency, easy deactivation of the cathode catalyst, and harsh reaction conditions.

[0004] Currently, there is a gap in the technology for the co-production of HClO and H2O2. When hypochlorous acid and hydrogen peroxide need to be present in solution simultaneously, users must prepare hypochlorous acid and hydrogen peroxide separately before mixing them. This method of separate preparation and subsequent mixing is cumbersome, costly, and lacks synergy. Therefore, it is necessary to develop a synergistic electrochemical reaction module for the two agents, which can effectively generate hypochlorous acid and hydrogen peroxide through electrochemical reactions, further meeting users' needs for the simultaneous presence of hypochlorous acid and hydrogen peroxide in solution. In addition, the simultaneous generation of H2O2 and HClO can lead to mutual consumption during the generation stage, making it difficult to maintain high activity concentrations and achieve thorough sterilization in subsequent applications. Utility Model Content

[0005] One of the objectives of this invention is to address the shortcomings of existing technologies by providing an electrochemical reaction module for the continuous preparation of two agents. This module employs a membrane-free electrolytic chamber with a synergistic anode-cathode reaction system, cleverly coupling the electrolytic preparation of HClO and H2O2 within the same module. This achieves integrated in-situ synthesis and synergistic mixing of two high-value-added oxidants. The generation sequence of HClO and H2O2 is predetermined, and a special turbulence structure design ensures thorough mixing of the sequentially generated H2O2 and HClO to obtain a composite liquid in a specific ratio. The module is simple in structure, highly efficient and energy-saving, and functionally integrated, achieving miniaturization and functional integration. Compared to traditional separate preparation methods, this invention significantly reduces equipment operating costs, improves sterilization and organic matter degradation performance, enhances equipment safety and automation, and facilitates large-scale application.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An electrochemical reaction module for the continuous preparation of two reagents includes a lower shell and an upper cover that enclose an electrolytic chamber. A cathode component and an anode component are physically isolated and arranged inside the electrolytic chamber. A carbon felt is provided at the bottom of the lower shell, the cathode component is placed on the carbon felt, and the anode component is placed above the cathode component. The anode component and the cathode component are electrically connected to the positive and negative terminals of an external power supply, respectively, through wiring harnesses. Turbulence structures are provided on the inner surfaces of the lower shell and the upper cover.

[0008] As an improvement, S-shaped flow paths are respectively provided on the inner surfaces of the lower shell and the upper cover, and the S-shaped flow paths of the upper cover and the lower shell are staggered.

[0009] As an improvement, the turbulence structures of the lower shell and the upper cover are distributed perpendicularly to each other.

[0010] As an improvement, the inner bottom surface of the lower shell is provided with a number of first ribs spaced laterally. Among two adjacent first ribs, one first rib forms a gap with one longitudinal side of the lower shell, and the other first rib forms a gap with the other longitudinal side of the lower shell, thereby forming an S-shaped turbulence path; the carbon felt is placed on the first rib.

[0011] As an improvement, the first rib and the inner side of the lower shell cooperate to form an S-shaped turbulence path.

[0012] As an improvement, the inner top surface of the top cover has several second ribs spaced longitudinally. Among two adjacent second ribs, one second rib forms a gap with one side of the top cover in the lateral direction, and the other second rib forms a gap with the other side of the top cover in the lateral direction, thereby forming an S-shaped turbulence path.

[0013] As an improvement, the S-shaped turbulence path of the upper cover has at least two turbulence regions that are relatively separated on the left and right and connected end to end, and the turbulence paths of two adjacent turbulence regions are consistent.

[0014] As an improvement, the turbulence path near the liquid inlet is longer and sparsely distributed, while the turbulence path near the liquid outlet is shorter and densely distributed.

[0015] As an improvement, the upper cover is provided with a first partition plate that runs through several second ribs in a longitudinal direction, so as to form two turbulence regions on both sides of the first partition plate. In each turbulence region, among two adjacent second ribs, a gap is formed between the end of one of the second ribs and the first partition plate, thereby forming an S-shaped turbulence path in each turbulence region.

[0016] As an improvement, the S-shaped flow path on the surface of the top cover has two laterally divided regions. In each region, among two adjacent second ribs, one second rib forms a gap with a lateral side of the top cover, and the other second rib forms a gap with the first partition, thereby forming an S-shaped flow path.

[0017] As an improvement, the second rib cooperates with the inner side of the upper cover and the first partition to form an S-shaped turbulence path.

[0018] As an improvement, the lower shell and upper cover are provided with protrusions to support and separate the cathode component and the anode component.

[0019] As an improvement, the side of the lower shell is provided with third ribs to limit the carbon felt.

[0020] As an improvement, the lower shell has liquid inlets and liquid outlets distributed on the left and right sides, with the liquid inlets positioned low and the liquid outlets positioned high to form a diagonal distribution. The liquid inlets are positioned lower than the cathode component and the liquid outlets are positioned higher than the anode component. The cathode component and the anode component adopt a hollow structure, and the lower shell and the upper cover are fitted together to form an overflow groove near the liquid outlet.

[0021] As an improvement, an overflow chamber is separated from the liquid outlet in the electrolysis chamber, and the overflow chamber and the electrolysis chamber are interconnected through the overflow channel.

[0022] As an improvement, a plurality of second partitions are provided between the lower shell and the upper cover, and the overflow chamber is formed by the second partitions, the lower shell and the upper cover together, wherein a notch is provided on one of the second partitions to serve as the overflow channel.

[0023] As an improvement, the carbon felt, cathode component, and anode component are arranged horizontally from bottom to top within the electrolysis chamber.

[0024] The beneficial effects of this utility model are as follows:

[0025] (1) The electrochemical reaction module for the continuous preparation of two agents in this utility model adopts a membraneless electrolytic chamber structure combined with a cathode-cathode synergistic reaction system, which cleverly couples the electrolytic preparation of HClO and H2O2 into the same electrochemical reaction module, realizing the in-situ synthesis and synergistic mixing of two high-value-added oxidants. It has a simple structure, high efficiency and energy saving, and integrated functions.

[0026] (2) Based on the electrochemical reaction module structure of this utility model, two reactants can be generated sequentially. This not only achieves better synergistic effects in specific application scenarios such as disinfection and sewage treatment, but also completes the preparation at a lower cost and under milder conditions. The process design is ingenious. By setting the generation order of H2O2 and HClO, the two are generated sequentially and mixed in a delayed manner through a turbulence structure to obtain a composite liquid with a specific ratio. This avoids mutual consumption between the two during the generation stage and ensures that a high activity concentration is maintained during application, thereby achieving a more thorough sterilization effect. Moreover, for complex sewage matrix, the sequential reaction of H2O2 and HClO with pollutants can greatly enhance the targeted degradation ability of pollutants. In addition, by controlling the single electrolysis system stepwise, the construction and maintenance costs of two independent systems are eliminated, and the equipment investment is reduced by more than 40%. The generation efficiency of H2O2 can be increased to more than 90% at room temperature through the catalyst. By time isolation, the amount of Cl2 generated can be effectively controlled to below 0.1 mg / L, which is far lower than the 5-10 mg / L of the traditional method.

[0027] (3) This utility model guides the electrolyte to flow through a turbulent path structure and sets up multi-dimensional and multi-block turbulence, thereby changing the flow rate and flow path, accelerating the discharge of hypochlorous acid and hydrogen peroxide generated in situ on the electrode surface, increasing the concentration of the mixed liquid in the reaction system, enhancing the mixing effect, optimizing the mass transfer efficiency, reducing turbulent energy consumption, and controlling the reaction process, assisting in exhausting gas, optimizing the flow path, and reducing outlet defects in conjunction with the overflow design; by designing a relatively independent S-shaped turbulence and setting the overflow chamber relatively independently, the reaction area and the liquid outlet area are relatively isolated, avoiding the outflow of the reaction composite liquid that has not been fully reacted in the early stage, thus ensuring the stability of the concentration of the composite liquid in the liquid outlet and meeting the requirements, and without the need to add an additional isolation device.

[0028] (4) The device of this utility model is miniaturized and integrated with functions. Compared with the traditional separate preparation, this utility model can significantly reduce the operating cost of the equipment, improve the performance of sterilization, disinfection and degradation of organic matter, and the equipment has higher safety and automation, making it easier to achieve large-scale application.

[0029] In summary, this utility model possesses excellent technical advancement and practical value, and is particularly suitable for the fields of disinfection and sterilization, industrial water treatment, medical wastewater purification, and chemical synthesis. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is an exploded view of the overall structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the lower shell structure of this utility model;

[0033] Figure 4 This is a front view of the lower shell structure of this utility model;

[0034] Figure 5 This is a schematic diagram of the structure of the upper cover in this utility model;

[0035] Figure 6 This is a front view of the structure of the upper cover in this utility model;

[0036] Figure 7 This is a cross-sectional view of the overall structure of this utility model;

[0037] Figure 8 This is a schematic diagram showing the connection between the upper cover and the anode component in this utility model;

[0038] Figure 9 This is a partial structural diagram of the present invention (excluding the top cover).

[0039] Figure 10 This is a top view of the mating structure between the carbon felt and the lower shell in this utility model;

[0040] Figure 11 This is a longitudinal sectional view of the overall structure of this utility model. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0042] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Example 1

[0044] like Figures 1-2 As shown, an electrochemical reaction module for the continuous preparation of two reagents includes a lower shell 1 and an upper cover 4 that enclose an electrolytic chamber. A cathode component 2 and an anode component 3 are physically isolated and arranged inside the electrolytic chamber. A carbon felt 7 is provided at the bottom of the lower shell 1, the cathode component 2 is placed on the carbon felt 7, and the anode component 3 is placed above the cathode component 2. The anode component 3 and the cathode component 2 are electrically connected to the positive and negative terminals of an external power supply through a wire harness 5, respectively. Turbulence structures are provided on the inner surfaces of the lower shell 1 and the upper cover 4, respectively.

[0045] In this embodiment, the electrolyte is a chloride-containing electrolyte solution (such as tap water or seawater). The cathode component 2 uses a conductive porous substrate A to support catalyst A. The conductive porous substrate A is a material with a high specific surface area, including nickel foam, copper foam, carbon fiber felt, carbon fiber cloth, or carbon paper. The catalyst A includes platinum, palladium, or iron-nitrogen-carbon. The anode component 3 uses a conductive porous substrate B to support catalyst B. The conductive porous substrate B is a titanium substrate or a carbon substrate, and the catalyst B is tin dioxide or ruthenium / iridium oxide.

[0046] During the electrochemical reaction, the anode component 3 and the cathode component 2 are electrically connected to the positive and negative terminals of an external power source, respectively. The electrolyte is introduced into the electrolysis chamber, where it flows in a turbulent manner in the first space between the lower shell 1 and the cathode component 2. First, a reduction reaction occurs on the surface of the cathode component 2 to produce H2O2. After the amount of H2O2 produced reaches the preset conditions, an oxidation reaction occurs on the surface of the anode component 3 to produce HClO. The resulting reaction solution is then mixed evenly in a turbulent manner in the second space between the anode component 3 and the upper cover 4, and a proportional HClO-H2O2 composite solution is formed and flows out at the outlet of the electrolysis chamber.

[0047] During the electrolysis reaction, there is a gap between the electrolyte in the second space and the top of the cover 4, and an overflow groove 13 communicating with the gap is provided in the second space near the outlet 12 to assist in venting.

[0048] Hydrogen peroxide is generated by the reduction of dissolved oxygen on the surface of cathode component 2.

[0049] O2 + 2H + +2e - →H2O2E 0 = 0.68 V;

[0050] At the same time, an oxidation reaction of chloride ions occurs on the anode surface to produce hypochlorous acid:

[0051] Cl - +H₂O→HClO+H + +2e - E 0 = 1.49 V;

[0052] In this application, H2O2 and HClO are generated sequentially. The electrolyte first covers the cathode component 2 to make the amount of H2O2 generated reach the preset condition, and then the electrolyte continues to be introduced until it covers the anode component 3 to generate HClO.

[0053] In this embodiment, it was found that generating two reactants in a specific order can achieve better synergistic effects in certain application scenarios (such as specific disinfection scenarios, sewage treatment scenarios, etc.) and can be prepared under lower cost and milder conditions.

[0054] Regarding the enhancement of synergistic effects, firstly, both H2O2 and HClO are strong oxidants, but direct mixing easily leads to the following reaction:

[0055] HClO + H₂O₂ → HCl + O₂↑ + H₂O (maximizing the retention of active ingredients);

[0056] The sequential generation and delayed mixing via a turbulence structure prevent mutual consumption during the generation phase, ensuring high activity concentrations during application (such as disinfection and wastewater treatment). In disinfection scenarios, H2O2 can rapidly oxidize lipids on cell membranes, disrupting cell membrane integrity, while HClO can penetrate cell membranes and attack intracellular proteins and nucleic acids, thus achieving a more thorough sterilization effect.

[0057] Secondly, for complex wastewater substrates, such as industrial wastewater containing phenols, ammonia nitrogen, and organic matter, H2O2 preferentially reacts with some pollutants (such as reducing organic matter), and the resulting intermediate products are more easily oxidized and decomposed by the subsequently generated HClO, thus enhancing the targeted degradation capacity of pollutants. For example, when treating wastewater containing ammonia nitrogen, H2O2 first oxidizes some NH3 to NO2. - HClO is then efficiently converted into NO2 - It produces harmless N2, and the total nitrogen removal rate can reach 1.5 times that of traditional processes.

[0058] Regarding the preparation under low cost and mild conditions, firstly, by controlling the single electrolysis system stepwise, the construction and maintenance costs of two independent systems are eliminated, reducing equipment investment by more than 40%.

[0059] Secondly, regarding the reaction conditions and temperature, the traditional HClO preparation requires maintaining 40-60℃ to increase the reaction rate, while the stepwise electrochemical method can increase the H2O2 generation efficiency to over 90% at room temperature through catalysts (such as carbon-based composite materials).

[0060] In addition, regarding the suppression of byproducts and improvement of atom economy, the stepwise generation method of H2O2 and HClO in this application, through time-sequential isolation, first generates H2O2 in the cathode region and exports it to an independent buffer, and then switches to the anode region to react and generate HClO. The amount of Cl2 generated can be controlled below 0.1 mg / L, which is far lower than the 5-10 mg / L of the traditional method.

[0061] This embodiment uses readily available and inexpensive natural water bodies such as tap water as the electrolyte. It utilizes chloride ions to generate HClO at the anodic oxidation and dissolved oxygen to generate H2O2 at the cathode, thereby achieving continuous and stable preparation of high-concentration HClO-H2O2 composite solutions under normal temperature and pressure conditions. No additional chemical reagents are required, avoiding environmental pollution and reagent residues. HClO and H2O2 do not need to be prepared, stored, or remixed separately, reducing costs and safety risks.

[0062] In this embodiment, the surfaces of the cathode component 2 and the anode component 3 are respectively coated with highly active chlorine evolution and oxygen evolution catalytic coatings to improve the rate and efficiency of O2 reduction to H2O2 at the cathode and the efficient electrocatalytic oxidation of Cl at the anode. -The generation of HClO optimizes the electrode reaction kinetics, significantly improves the current efficiency of HClO and H2O2, and reduces energy consumption.

[0063] In this embodiment, by setting up a turbulence structure, the electrolyte flows within the turbulence path, thereby changing the flow rate and flow path, accelerating the discharge of hypochlorous acid and hydrogen peroxide generated in situ on the electrode surface, and increasing the concentration of the mixture in the reaction system.

[0064] It is worth noting that by setting a turbulence path on the surface of the upper cover 4, the residence time of the electrolyte in the anode region can be extended, ensuring that O2 is fully reduced to H2O2 in the cathode region. This allows the electrolyte to form a "laminar-transitional flow" transition on the electrode surface, promoting the gas-liquid interface mass transfer required for H2O2 generation. The turbulence path is combined with two regions of varying density, and by reducing the flow velocity to prevent unreacted O2 bubbles from being rapidly carried out, local turbulence is formed at the end of the flow channel through dense turbulence units, allowing Cl... - Rapid oxidation in the anodic region and increased flow rate through channel contraction effect enable three-stage separation of the two products in space: generation-buffering-mixing. This completely avoids the problem of "cross-reaction loss caused by synchronous generation" in existing technology patents.

[0065] As an improvement, such as Figure 4 , 6 As shown, S-shaped flow paths are respectively provided on the inner surfaces of the lower shell 1 and the upper cover 4.

[0066] As an improvement, such as Figures 3-4 As shown, the inner bottom surface of the lower shell 1 has a plurality of first ribs 101 distributed at transverse intervals. Among two adjacent first ribs 101, one first rib 101 forms a gap with one longitudinal side of the lower shell 1, and the other first rib 101 forms a gap with the other longitudinal side of the lower shell 1, thereby forming an S-shaped turbulence path; the carbon felt 7 is placed on the first rib 101.

[0067] As an improvement, the first rib 101 and the inner side of the lower shell 1 cooperate to form an S-shaped turbulence path.

[0068] In this embodiment, an S-shaped turbulence groove structure is provided on the lower shell 1 below the cathode component 2, which specifically solves the problem of electrolyte flow optimization in the cathode region. Since the cathode is the main site of the hydrogen evolution reaction, the requirements for electrolyte mass transfer efficiency and bubble discharge are higher. The S-shaped turbulence groove is centrally provided on the lower shell 1 below the cathode component 2, which can more accurately enhance the disturbance effect of electrolyte near the cathode, reduce local flow dead zones, and improve the mass transfer efficiency of the hydrogen evolution reaction.

[0069] As an improvement, such as Figures 5-6As shown, the inner top surface of the upper cover 4 has a plurality of second ribs 401 distributed longitudinally. Among two adjacent second ribs 401, one second rib 401 forms a gap with one side of the upper cover 4 in the lateral direction, and the other second rib 401 forms a gap with the other side of the upper cover 4 in the lateral direction, thereby forming an S-shaped turbulence path.

[0070] As an improvement, the second rib 401 and the inner side of the upper cover 4 cooperate to form an S-shaped turbulence path.

[0071] As an improvement, such as Figure 3 , 7 As shown in Figures 8 and 9, the cathode component 2 is placed on the carbon felt 7, the anode component 3 is located above the cathode component 2, and the lower shell 1 and the upper cover 4 are provided with protrusions 403 for supporting and separating the cathode component 2 and the anode component 3.

[0072] As a supplementary explanation, such as Figure 8 As shown, several protrusions 403 are distributed on both sides and in the middle of the anode and cathode components, thereby supporting and isolating the edges and middle of the anode and cathode components, effectively preventing short circuits caused by deformation, and ensuring high reliability.

[0073] In a preferred embodiment, the distance between the cathode component 2 and the anode component 3 is 4 mm.

[0074] As an improvement, such as Figure 3 , 7 As shown, the side of the lower shell 1 is provided with third ribs 404 for limiting the installation of the carbon felt 7.

[0075] As an improvement, such as Figure 1 As shown, the lower shell 1 has an inlet 11 and an outlet 12 arranged on the left and right sides, with the inlet 11 positioned at a low position and the outlet 12 positioned at a high position to form a diagonal distribution. The inlet 11 is positioned below the cathode component 2 and the outlet 12 is positioned above the anode component 3. The cathode component 2 and the anode component 3 adopt a hollow structure.

[0076] In this embodiment, the electrolyte is introduced from bottom to top so that the cathode component 2 and the anode component 3 participate in the reaction sequentially. At the same time, the cathode component 2 and the anode component 3 adopt a hollow design. Combined with the spacing design between each reaction component in the electrolysis chamber and the side walls of the lower shell 1 and the upper cover 4, it can be ensured that when the electrolyte reacts with the cathode component 2 and the anode component 3 in sequence, H2O2 or HClO is generated simultaneously at all parts of the entire electrode surface of the cathode component 2 and the anode component 3. Moreover, the gas generated during the reaction can be quickly discharged from the spacing position and the hollow position of the electrode plate.

[0077] As an improvement, the carbon felt 7, cathode component 2, and anode component 3 are arranged horizontally from bottom to top in the electrolysis chamber.

[0078] This embodiment is also equipped with a control system, which is equipped with sensors for temperature, pH, conductivity and other parameters to realize real-time control and monitoring of the reaction system. It can also flexibly adjust the voltage, current and other parameters of the reaction system. For example, the concentration ratio of HClO and H2O2 generated by the reaction can be adjusted by controlling the current distribution of the cathode component 2 and the anode component 3. In addition, the control system can disconnect the circuit to protect the reaction device when the reaction device is running abnormally.

[0079] The HClO-H2O2 composite solution with a specific ratio prepared using this electrochemical reaction module can be used for disinfection and sterilization of various water qualities and degradation of organic pollutants. This includes direct application for disinfection and sterilization of drinking water, sewage, and swimming pools, as well as degradation of organic pollutants such as dyes and pesticides. Compared to traditional single-agent solutions, the HClO-H2O2 composite solution, through the synergistic effect of active chlorine and active oxygen, significantly enhances the sterilization and degradation effects, while also taking into account the initial sterilization of HClO and the long-term antibacterial effect of H2O2. This results in a substantial improvement in treatment efficiency, making it particularly suitable for applications with high concentrations of microbial contamination and organic pollutants.

[0080] This embodiment is particularly suitable for municipal and industrial water supply and drainage systems, medical and health care, food processing and other industries. It can be widely used not only in waterworks and municipal sewage treatment, but also has broad application prospects in special places such as hospitals, hotels, swimming pools, disinfection of industrial circulating water and deep treatment of wastewater. It provides a new type of efficient and environmentally friendly electrolytic preparation technology for the water treatment field.

[0081] Example 2

[0082] The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that:

[0083] like Figure 4 , 6 As shown, as an improvement, the S-shaped turbulence path of the upper cover 4 is staggered with the S-shaped turbulence path of the lower shell 1.

[0084] In a preferred embodiment, the S-shaped flow path of the upper cover 4 is perpendicular to the S-shaped flow path of the lower shell 1.

[0085] This embodiment achieves the following effect by staggering the S-shaped flow paths of the upper cover 4 and the lower shell 1:

[0086] First, the distribution of the upper cover 4 turbulence structure guides the liquid to flow in a specific direction, while the lower shell 1 turbulence structure forms a disturbance path in the vertical direction. The interaction between the two can break the flow inertia in a single direction, form a more complex three-dimensional flow trajectory, promote the uniform mixing of the liquid in the chamber, reduce local flow dead zones, and thus achieve multi-dimensional disturbance and enhanced mixing.

[0087] In addition, flow paths in different directions can specifically enhance the liquid renewal rate in key areas (such as near the cathode), and vertical disturbances can more effectively strip bubbles or reaction products from the electrode surface, improve the contact efficiency between the electrolyte and the electrode, thereby improving the mass transfer performance of the electrolytic reaction and optimizing the mass transfer efficiency.

[0088] Secondly, through structural differentiation design, some vertical flow paths can guide the fluid to turn in an orderly manner, avoiding energy loss caused by strong turbulence in the same direction. While ensuring the disturbance effect, it reduces the energy consumption requirement of the drive pump, improves the overall efficiency of the system, and thus reduces turbulence energy consumption.

[0089] As an improvement, the S-shaped turbulence path of the upper cover 4 has at least two turbulence regions that are relatively separated on the left and right and connected end to end, and the turbulence paths of two adjacent turbulence regions are consistent.

[0090] As an improvement, the upper cover 4 is provided with a first partition 402 that runs through several second ribs 401 in a longitudinal direction, so as to form two turbulence regions on both sides of the first partition 402. In each turbulence region, among two adjacent second ribs 401, a gap is formed between the end of one second rib 401 and the first partition 402, thereby forming an S-shaped turbulence path in each turbulence region.

[0091] As an improvement, such as Figure 6 As shown, the S-shaped turbulence path on the surface of the upper cover 4 has two regions that are laterally divided. In each region, among two adjacent second ribs 401, one second rib 401 forms a gap with one side of the upper cover 4, and the other second rib 401 forms a gap with the first partition 402, thereby forming an S-shaped turbulence path.

[0092] As an improvement, the second rib 401 cooperates with the inner side of the upper cover 4 and the first partition 402 to form an S-shaped turbulence path.

[0093] As an improvement, the S-shaped turbulence path of the upper cover 4 has two turbulence areas that are relatively separated on the left and right and connected end to end. The turbulence path near the liquid inlet 11 is long and sparsely distributed, while the turbulence path near the liquid outlet 12 is short and densely distributed.

[0094] In this application, regarding the S-shaped turbulence path on the surface of the upper cover 4, the turbulence path distribution on the side of the liquid inlet 11 is sparser, while the turbulence path distribution on the side of the liquid outlet 12 is denser. With this arrangement, when the reaction liquid overflows to the upper cover 4, on the side of the liquid inlet 11, due to the sparser distribution of the turbulence path, the reaction liquid has a longer flow path and a slower flow rate, thereby ensuring that HClO and H2O2 in the reaction liquid are fully and evenly mixed. Then, on the side of the liquid outlet 12, due to the denser distribution of the turbulence path, the reaction liquid has a faster flow rate and forms rapid turbulence, which can help to quickly expel the reaction gas on the side of the liquid outlet.

[0095] Example 3

[0096] The components in this embodiment that are the same as or corresponding to those in the above embodiments are referred to by the same reference numerals as those in the above embodiments. For the sake of simplicity, only the differences between this embodiment and the above embodiments are described below. The difference between this embodiment and the above embodiments is that:

[0097] like Figure 3 As shown, as an improvement, the lower shell 1 and the upper cover 4 are fitted together to form an overflow groove 13 near the liquid outlet 12.

[0098] This embodiment incorporates an overflow structure near the liquid outlet (combined with...) Figure 11 The arrow indicates the process of the reaction liquid overflowing from the overflow tank 13 to the outlet, which has the following function:

[0099] First, it is used to control the liquid level and ensure that the liquid does not overflow, thereby indirectly maintaining a certain reaction time. When the liquid stays in the overflow tank, the reaction will take place in the liquid.

[0100] In addition, gas tends to accumulate near the liquid outlet due to the flow end effect. While guiding the liquid flow through the overflow channel, the residual gas in the cavity is discharged through the overflow channel, which plays an auxiliary role in venting, reducing gas retention in the outlet area, and preventing gas from forming air blockage at the outlet or causing poor liquid flow.

[0101] Secondly, if the liquid outlet area is not designed properly, dead zones or turbulence may occur. The overflow channel can adjust the flow direction and speed in this area, balance the liquid flow distribution, avoid local flow velocities that are too fast or too slow, thereby optimizing the flow path and reducing outlet defects.

[0102] As an improvement, such as Figure 3 As shown, an overflow chamber 14 is separated from the electrolysis chamber at the position opposite the liquid outlet 12. The overflow chamber 14 and the electrolysis chamber are interconnected through the overflow channel 13.

[0103] As an improvement, a plurality of second partitions 405 are provided between the lower shell 1 and the upper cover 4. The overflow chamber 14 is formed by the second partitions 405, the second ribs 401 on the lower shell 1 and the first partitions 402 on the upper cover 4. A notch is provided on one of the second partitions 405 to serve as the overflow groove 13.

[0104] In this embodiment, a relatively independent S-shaped turbulence is formed through the structural cooperation between the upper cover 4 and the anode component 3 and the lower shell 1 and the cathode component 2. Combined with the relatively independent overflow chamber 14, the reaction area and the liquid outlet area are relatively isolated, preventing the outflow of the reaction compound liquid that has not fully reacted in the early stage. This ensures the stability of the compound liquid concentration in the liquid outlet and meets the requirements. This can be achieved based on the above structural cooperation without the need for additional isolation devices.

[0105] It should be added that, in combination Figure 3 and Figure 5 As shown, the connection areas of the electrolysis reaction chamber and the connecting wires 5 between the anode and cathode components are independently separated, as shown in the figure. Figure 3 As shown, a groove 15 is provided on the vertical plate on the lower shell 1 that separates the two areas, in conjunction with... Figure 9 As shown, the tabs of the anode and cathode components extend from the electrolysis reaction chamber to the connection area through the groove 15, thereby making an electrical connection with the wire 5. Correspondingly, a protrusion 45 is provided at the corresponding position on the upper cover 4. The protrusion 45 is sealed and locked in the groove 15 to separate the two areas. A clamping block 6 is provided above the wire 5 to ensure the safety and reliability of the electrolysis reaction.

[0106] Furthermore, by setting up an overflow structure, combined with the S-shaped turbulence path of the upper cover 4 having at least two relatively divided regions, it further achieves the following effects:

[0107] First, by coordinating the positions of the baffle and the overflow trough 13, the potentially disordered liquid flow can be confined to two independent areas, preventing short circuits or dead zones in the liquid within the chamber, ensuring that the liquid flows along the designed path, improving flow controllability, and thus guiding the orderly flow of the liquid.

[0108] In addition, the multiple separated areas can apply different degrees of disturbance to the liquid. One side of the overflow tank 13 can accelerate the liquid flow or form local turbulence through the turbulence baffle structure, while the other side can achieve mixing or buffering by adjusting the flow space, thereby enhancing the turbulence mixing effect and strengthening the mass transfer or heat exchange efficiency inside the liquid.

[0109] It is worth noting that this embodiment, by designing a relatively independent S-shaped turbulence and coordinating with a relatively independent overflow chamber, makes the reaction area and the liquid outlet area relatively isolated, preventing the outflow of the reaction compound liquid that has not fully reacted in the early stage. This ensures the stability of the compound liquid concentration in the liquid outlet and meets the requirements, without the need for additional isolation devices.

[0110] Work process:

[0111] The anode component 3 and cathode component 2 are electrically connected to the positive and negative terminals of an external power source, respectively. Electrolyte is introduced into the electrolysis chamber. The electrolyte flows in a turbulent manner in the first space between the lower shell 1 and the cathode component 2. First, a reduction reaction occurs on the surface of the cathode component 2 to produce H2O2. After the amount of H2O2 produced reaches the preset condition, an oxidation reaction occurs on the surface of the anode component 3 to produce HClO. The resulting reaction solution is then mixed evenly in a turbulent manner in the second space between the anode component 3 and the upper cover 4, and a HClO-H2O2 composite solution with a certain proportion is formed and flows out at the outlet of the electrolysis chamber.

[0112] 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 electrochemical reaction module for the continuous preparation of two pharmaceutical agents, characterized in that, The device includes a lower shell (1) and an upper cover (4) that enclose an electrolysis chamber. A cathode component (2) and an anode component (3) are physically isolated inside the electrolysis chamber. A carbon felt (7) is provided at the bottom of the lower shell (1). The cathode component (2) is placed on the carbon felt (7), and the anode component (3) is placed above the cathode component (2). The anode component (3) and the cathode component (2) are electrically connected to the positive and negative terminals of an external power source through a wire harness (5), respectively. Turbulence structures are provided on the inner surfaces of the lower shell (1) and the upper cover (4), respectively.

2. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 1, characterized in that, The inner surfaces of the lower shell (1) and the upper cover (4) are respectively provided with S-shaped turbulence paths, and the S-shaped turbulence paths of the upper cover (4) and the lower shell (1) are interspersed.

3. An electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 1 or 2, characterized in that, The turbulence structures of the lower shell (1) and the upper cover (4) are perpendicular to each other. The inner bottom surface of the lower shell (1) is provided with a number of first ribs (101) at intervals along the transverse direction. Among two adjacent first ribs (101), one first rib (101) forms a gap with one longitudinal side of the lower shell (1), and the other first rib (101) forms a gap with the other longitudinal side of the lower shell (1), thereby forming an S-shaped turbulence path. The carbon felt (7) is placed on the first rib (101). The inner top surface of the cover (4) has a number of second ribs (401) spaced longitudinally. Among two adjacent second ribs (401), one second rib (401) forms a gap with one side of the cover (4) in the lateral direction, and the other second rib (401) forms a gap with the other side of the cover (4) in the lateral direction, thereby forming an S-shaped turbulence path.

4. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 3, characterized in that, The S-shaped turbulence path on the surface of the upper cover (4) has at least two turbulence regions that are relatively separated on the left and right and connected end to end.

5. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 4, characterized in that, The turbulence path on the side of the liquid inlet (11) near the lower shell (1) is long and sparsely distributed, while the turbulence path on the side of the liquid outlet (12) is short and densely distributed.

6. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 4, characterized in that, The upper cover (4) is provided with a first partition (402) that runs through a plurality of second ribs (401) in a longitudinal direction, so as to form two turbulence regions on both sides of the first partition (402). In each turbulence region, among two adjacent second ribs (401), a gap is formed between the end of one second rib (401) and the first partition (402), thereby forming an S-shaped turbulence path in each turbulence region.

7. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 1, characterized in that, The lower shell (1) and the upper cover (4) are provided with protrusions (403) for supporting and separating the cathode component (2) and the anode component (3).

8. The electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 1, characterized in that, The lower shell (1) has an inlet (11) and an outlet (12) arranged on the left and right sides. The inlet (11) is positioned at a low position and the outlet (12) is positioned at a high position to form a diagonal distribution. The inlet (11) is positioned below the cathode component (2) and the outlet (12) is positioned above the anode component (3). The cathode component (2) and the anode component (3) adopt a hollow structure. The lower shell (1) and the upper cover (4) are fitted together to form an overflow groove (13) near the outlet (12).

9. An electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 8, characterized in that, An overflow chamber (14) is separated from the outlet (12) in the electrolysis chamber. The overflow chamber (14) and the electrolysis chamber are connected to each other through the overflow channel (13).

10. An electrochemical reaction module for the continuous preparation of two pharmaceutical agents according to claim 9, characterized in that, A plurality of second partitions (405) are provided between the lower shell (1) and the upper cover (4), and the second partitions (405) together with the lower shell (1) and the upper cover (4) form the overflow chamber (14), wherein a notch is provided on one of the second partitions (405) to serve as the overflow channel (13).

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