Critical high-concentration hydrogen peroxide generator

Abstract

The utility model relates to the technical field of hydrogen peroxide generating devices, in particular to a critical high-concentration hydrogen peroxide generator which comprises a rack, the rack is provided with a rack cavity, an air inlet and an air outlet, and the rack cavity is provided with a hydrogen peroxide reaction module, a water tank and a circulating module used for circularly conveying liquid. The hydrogen peroxide reaction module is provided with a liquid reaction chamber and a gas-solid-liquid reaction area positioned between the rack cavity and the liquid reaction chamber. According to the utility model, the critical hydrogen peroxide reaction module is arranged, a gas-solid critical surface is formed between the rack cavity and the gas-solid-liquid reaction area, a solid-liquid critical surface is formed between the gas-solid-liquid reaction area and the liquid reaction cavity, and the generation of hydrogen peroxide is promoted through the flowing of gas and the flowing of electrolyte; according to the utility model, by arranging the circulating module, liquid participates in the reaction process for multiple times to realize step-by-step accumulation reaction, so that electrode polarization is relieved, side reaction interference is reduced, and integrated continuous production is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen peroxide generating devices, specifically a critical high-concentration hydrogen peroxide generator. Background Technology

[0002] Current methods for preparing hydrogen peroxide all suffer from complex processes and limitations in increasing concentration. For example, chemical methods involve complex processes and often require complicated post-processing steps such as distillation and concentration. This not only increases costs but may also reduce the stability and purity of hydrogen peroxide. Furthermore, these methods are energy-intensive and generate a large number of byproducts that can pollute the environment.

[0003] Current hydrogen peroxide generators employ traditional electrochemical preparation methods. While electrochemical methods are relatively environmentally friendly, the preparation of high-concentration hydrogen peroxide typically involves extending the reaction time required for the liquid to move through the device or increasing the reaction power, followed by collecting and storing the processed liquid. However, traditional electrochemical methods are prone to problems such as electrode polarization and numerous side reactions, making it difficult to ensure the effective conduct of the reaction and resulting in the inability to obtain a stable and high-concentration hydrogen peroxide solution. Therefore, it is necessary to improve existing hydrogen peroxide generators to enable them to effectively carry out the hydrogen peroxide reaction and thus obtain high-concentration hydrogen peroxide. Utility Model Content

[0004] The existing hydrogen peroxide generators mentioned above generally solve the problem by extending the reaction time required for the liquid to move through the device or increasing the reaction power. However, traditional electrochemical methods are prone to problems such as electrode polarization, numerous side reactions, and inability to guarantee the effective progress of the reaction, resulting in difficulties in obtaining a stable and high-concentration hydrogen peroxide solution. The technical solution adopted by this utility model to solve these problems is as follows:

[0005] A critical high-concentration hydrogen peroxide generator includes a frame, the frame having a frame cavity, an air inlet and an exhaust port respectively communicating with the frame cavity, the frame cavity having a hydrogen peroxide reaction module, a water tank connected to the hydrogen peroxide reaction module, and a circulation module for circulating and transporting liquid, the hydrogen peroxide reaction module having a liquid reaction chamber and a gas-solid-liquid reaction zone located between the frame cavity and the liquid reaction chamber.

[0006] Furthermore, in some embodiments of this utility model, the frame cavity is provided with a mounting bracket for supporting the hydrogen peroxide reaction module and a suction device for accelerating airflow. The hydrogen peroxide reaction module is located on the upper side of the water tank, and the circulation module is located inside the water tank.

[0007] Furthermore, in some embodiments of this utility model, the hydrogen peroxide reaction module includes a cathode electrode assembly, an anode electrode assembly located in the liquid reaction chamber, and an inlet and an outlet respectively connected to the liquid reaction chamber. One side of the cathode electrode assembly is in contact with the gas and the other side is in contact with the liquid to form a gas-solid-liquid reaction zone.

[0008] Furthermore, in some embodiments of this utility model, the hydrogen peroxide reaction module includes a detachable upper shell and a lower shell, the upper shell and the lower shell enclosing to form the liquid reaction chamber, the upper shell having an opening through which part of the cathode electrode assembly passes, the anode electrode assembly being fixed to the lower shell, and a sealing element connecting the cathode electrode assembly and the opening of the upper shell.

[0009] Furthermore, in some embodiments of this utility model, the cathode electrode assembly and the anode electrode assembly are provided with multiple components, the lowest height of the liquid outlet is higher than the lowest height of the cathode electrode assembly, and the liquid outlet is provided with a downwardly inclined guide.

[0010] Furthermore, in some embodiments of this utility model, one side of the mounting bracket is provided with a mounting bracket opening for the hydrogen peroxide reaction module to extend into, a mounting cavity communicating with the mounting bracket opening, and a positioning member for positioning the hydrogen peroxide reaction module. The positioning member is provided with a positioning support portion that abuts against the upper side of the mounting bracket opening, and the positioning member is U-shaped or V-shaped.

[0011] Furthermore, in some embodiments of this utility model, the other side of the mounting bracket is provided with a collecting part for collecting the liquid from the outlet and an inclined part located below the outlet. The collecting part is connected to the water tank, and the inclined part is used to guide the liquid from the outlet to the collecting part.

[0012] Furthermore, in some embodiments of this utility model, the air inlet is located on the lower side of the frame, the side of the mounting bracket is provided with a plurality of air holes communicating with the mounting cavity, the exhaust port is arranged opposite to the air holes, and the height of the exhaust port is higher than the height of the air inlet.

[0013] Furthermore, in some embodiments of this utility model, the hydrogen peroxide reaction module is equipped with a current detection module, and the water tank is connected to an electrolyte supply device, a concentration detection module, and a liquid level detection module.

[0014] Furthermore, in some embodiments of this utility model, the circulation module includes a water pump disposed in the water tank, and multiple hydrogen peroxide reaction modules are provided, with multiple water pumps corresponding one-to-one with each hydrogen peroxide reaction module.

[0015] The beneficial effects of this utility model are as follows:

[0016] This invention establishes a critical hydrogen peroxide reaction module, forming a gas-solid critical surface between the frame cavity and the gas-solid-liquid reaction zone, and a solid-liquid critical surface between the gas-solid-liquid reaction zone and the liquid reaction chamber. The flow of gas and electrolyte promotes hydrogen peroxide generation. Furthermore, a circulation module allows the low-concentration hydrogen peroxide generated by the reaction module to be collected in a water tank and then transferred back to the reaction module for further reaction. By allowing the liquid to participate in the reaction process multiple times, a step-by-step accumulation reaction is achieved, thereby alleviating electrode polarization, reducing side reaction interference, and helping to increase the final concentration of hydrogen peroxide, thus realizing integrated continuous production. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a critical high-concentration hydrogen peroxide generator according to the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of a critical high-concentration hydrogen peroxide generator according to the present invention.

[0019] Figure 3 This is a schematic diagram from another perspective of a critical high-concentration hydrogen peroxide generator according to this utility model.

[0020] Figure 4 This is a cross-sectional view of a critical high-concentration hydrogen peroxide generator according to the present invention.

[0021] Figure 5 This is a schematic diagram of the hydrogen peroxide reaction module of this utility model.

[0022] Figure 6 This is an exploded view of the hydrogen peroxide reaction module of this utility model.

[0023] Figure 7 for Figure 5 AA sectional view.

[0024] Figure 8 This is a schematic diagram of a critical high-concentration hydrogen peroxide generator according to the present invention.

[0025] Figure 9 This is a schematic diagram of the mounting bracket of this utility model.

[0026] Figure 10 This is a schematic diagram of the mounting bracket of this utility model from another angle. Detailed Implementation

[0027] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings. The described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0030] like Figures 1 to 10 The illustrated critical high-concentration hydrogen peroxide generator includes a frame 100. The frame 100 has a frame cavity 24, an air inlet 241 and an exhaust outlet 242 respectively connected to the frame cavity 24. The frame cavity 24 has a hydrogen peroxide reaction module 2, a water tank 1 connected to the hydrogen peroxide reaction module 2, and a circulation module 3 for circulating and transporting liquid. The hydrogen peroxide reaction module 24 has a liquid reaction chamber 23 and a gas-solid-liquid reaction zone 25 located between the frame cavity 24 and the liquid reaction chamber 23.

[0031] This invention establishes a critical hydrogen peroxide reaction module, forming a gas-solid critical surface between the frame cavity and the gas-solid-liquid reaction zone, and a solid-liquid critical surface between the gas-solid-liquid reaction zone and the liquid reaction chamber. The flow of gas and electrolyte promotes hydrogen peroxide generation. Furthermore, a circulation module allows the low-concentration hydrogen peroxide generated by the reaction module to be collected in a water tank and then transferred back to the reaction module for further reaction. By allowing the liquid to participate in the reaction process multiple times, a step-by-step accumulation reaction is achieved, thereby alleviating electrode polarization, reducing side reaction interference, and helping to increase the final concentration of hydrogen peroxide, thus realizing integrated continuous production.

[0032] Specifically, the hydrogen peroxide reaction module produces hydrogen peroxide electrochemically, whereby hydrogen peroxide is generated during the reduction of oxygen on the cathode surface during the electrochemical reaction.

[0033] O2+ 2H + + 2e - → H2O2;

[0034] Simultaneously, an oxidation reaction occurs on the anode surface to generate oxygen:

[0035] 2H₂O → O₂ + 4H + + 4e - ;

[0036] The overall reaction of the entire electrolysis process is 2H2O + O2 → 2H2O2.

[0037] Therefore, it can be concluded that the hydrogen peroxide reaction module undergoes a gas-liquid reaction during the electrochemical reaction. On the cathode surface of the hydrogen peroxide reaction module, hydrogen ions react with oxygen in the air to undergo an oxygen reduction reaction.

[0038] The liquid reaction chamber of this invention ensures sufficient contact between the electrolyte and the electrode surface, maintaining a stable electrochemical reaction. The gas-solid-liquid reaction zone increases the gas-liquid contact area, promoting the dissolution and migration of O2 to the electrode interface. The frame cavity 24 continuously supplies air or oxygen through the air inlet and outlet, providing sufficient O2 for the reaction and avoiding reaction stagnation caused by insufficient dissolved oxygen in traditional methods.

[0039] In traditional electrochemical methods, electrode surfaces are prone to polarization at high current densities, causing the effective potential to be occupied by side reactions and reducing the current efficiency of hydrogen peroxide generation. High-power operation exacerbates side reactions and causes local overheating. Due to the instability of hydrogen peroxide, traditional devices lack effective control over temperature, pH, and metal impurities, making it prone to decomposition at high temperatures or under the catalysis of metal ions. In this case, excessively prolonged residence time will reduce the production capacity per unit time, leading to the decomposition of hydrogen peroxide on the electrode surface.

[0040] Specifically, the circulating electrolyte continuously refreshes the reactants on the electrode surface, reducing concentration polarization and maintaining high current efficiency. Furthermore, the circulating process involves multiple reactions at low power, which reduces energy consumption compared to traditional electrochemical methods while achieving the same concentration target. The flow of the circulating liquid also evenly distributes the heat of reaction, preventing localized overheating that could lead to hydrogen peroxide decomposition or equipment damage.

[0041] Compared to the complex operation steps of traditional chemical methods, the continuous operation mode of this invention, which generates and concentrates simultaneously, eliminates the need for intermediate storage and multiple transfers, making it suitable for industrial-scale production.

[0042] like Figures 2 to 10 The invention relates to a critical high-concentration hydrogen peroxide generator, wherein the frame cavity 24 is provided with a mounting bracket 7 for supporting the hydrogen peroxide reaction module 2 and a suction device 6 for accelerating airflow. The hydrogen peroxide reaction module 2 is located on the upper side of the water tank 1, and the circulation module 3 is located inside the water tank 1.

[0043] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the mounting bracket is used to support the hydrogen peroxide reaction module, which can provide a stable support structure for the hydrogen peroxide reaction module, so that it can maintain a stable position during operation, thereby effectively avoiding the normal operation of the hydrogen peroxide reaction module caused by external factors such as vibration and shaking during device operation.

[0044] Specifically, the hydrogen peroxide reaction module is located on the upper side of the water tank. When assembling, repairing, or replacing the hydrogen peroxide generator, the staff can more easily install the hydrogen peroxide reaction module in the designated position. Furthermore, it can be easily disassembled and reinstalled when subsequent maintenance is required, reducing maintenance time and labor costs, and improving the operability and ease of use of the entire device.

[0045] In addition, the hydrogen peroxide reaction module is located on the upper side of the water tank. During the reaction, the heat generated by the hydrogen peroxide reaction module can be more easily transferred to the water tank below. The high specific heat capacity of water can be used to absorb and regulate the temperature of the hydrogen peroxide reaction module, avoiding excessively high reaction temperatures that could adversely affect the reaction and ensuring that the reaction proceeds under suitable temperature conditions. Furthermore, as the electrochemical reaction proceeds, oxygen in the air is continuously consumed. The suction device can accelerate airflow, and sufficient and rapidly flowing air can provide a more abundant oxygen source for the reaction. The flowing air can also remove heat from the gas-solid reaction zone, which helps to increase the generation rate and final yield of hydrogen peroxide, thereby improving the overall efficiency of the generator.

[0046] In addition, the circulation module in the water tank can better circulate and transport the liquid materials required for the reaction, ensuring that the liquid participating in the reaction can be continuously and stably supplied to the hydrogen peroxide reaction module, ensuring that the reaction continues uninterrupted.

[0047] like Figures 5 to 7 The invention relates to a critical high-concentration hydrogen peroxide generator. The hydrogen peroxide reaction module 2 includes a cathode electrode assembly 231, an anode electrode assembly 232 located in the liquid reaction chamber 23, an inlet 21 and an outlet 22 respectively connected to the liquid reaction chamber 23. The cathode electrode assembly 231 is in contact with the gas on one side and with the liquid on the other side to form a gas-solid-liquid reaction zone.

[0048] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the cathode electrode assembly is provided with a hydrophobic and breathable layer in the gas-solid-liquid reaction zone. On both sides of the hydrophobic and breathable layer, adjacent phase interface reaction zones, i.e., gas-solid-liquid reaction zones, are formed. One side of the gas-solid-liquid reaction zone forms a gas-solid critical surface with air, so that the cathode reaction can utilize oxygen in the air instead of solely relying on dissolved oxygen in the electrolyte. Compared with the traditional process which is limited by dissolved oxygen in water, the oxygen, solid electrode material, and reaction raw material liquid phases of this utility model can fully contact and interact, greatly increasing the contact area and reaction opportunities, allowing the reaction to proceed more fully, improving the conversion rate of raw materials, and helping to generate more hydrogen peroxide.

[0049] This invention can provide a sufficient and continuous oxygen source for the cathode reaction. The gas-solid critical surface can increase the contact area between the cathode and oxygen in the air, so that oxygen can be more fully utilized by the cathode, providing a continuous oxygen supply for the cathode reaction. The other side of the hydrophobic and breathable layer forms a solid-liquid critical surface with the electrolyte in the liquid reaction chamber, so that the reaction can continue, thereby improving the efficiency and equilibrium concentration of electrochemical synthesis products and ensuring the continuous preparation of high-concentration products.

[0050] Furthermore, the inlet continuously and stably supplies the liquid raw materials for the reaction into the liquid reaction chamber, ensuring that the substances required for the reaction are replenished in a timely manner, allowing the reaction to proceed uninterrupted. The outlet, on the other hand, promptly discharges the liquid that has already participated in the reaction, preventing excessive accumulation of liquid in the reaction chamber or the accumulation of reaction products that could affect the normal progress of the reaction. This maintains a suitable reaction environment within the chamber, which is beneficial for maintaining the efficiency and stability of the reaction. By setting up the inlet and outlet, the flow rate and composition of the liquid entering and leaving the reaction chamber can be easily monitored and controlled. This further optimizes the generation of hydrogen peroxide, ensuring that the reaction proceeds in a direction conducive to the production of high-concentration, high-quality hydrogen peroxide.

[0051] like Figures 5 to 7 The invention relates to a critical high-concentration hydrogen peroxide generator. The hydrogen peroxide reaction module 2 includes a detachable upper housing 28 and a lower housing 29. The upper housing 28 and the lower housing 29 enclose the liquid reaction chamber 23. The upper housing 28 has an opening 281 through which part of the cathode electrode assembly 231 passes. The anode electrode assembly 232 is fixed to the lower housing 29. A sealing element connects the cathode electrode assembly 231 and the opening 281.

[0052] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the upper and lower shells are designed to be detachable, facilitating maintenance and repair of the hydrogen peroxide reaction module. When the hydrogen peroxide reaction module malfunctions, such as damaged electrode components, impurities accumulating in the chamber, or other components requiring replacement or adjustment, personnel can disassemble the upper or lower shell to quickly and directly access the internal components for inspection, repair, or cleaning. This eliminates the need for complex disassembly procedures, effectively shortening equipment maintenance time, reducing maintenance costs, and improving the maintainability and service life of the entire device.

[0053] Optionally, in some embodiments, during the initial assembly stage of the device, the operator can first accurately install the anode electrode assembly into the lower housing, then install the cathode electrode assembly and other related components into the upper housing, and then complete the assembly of the entire hydrogen peroxide reaction module by closing the upper and lower housings, thereby improving the assembly efficiency of the device.

[0054] Specifically, the upper shell has an opening through which part of the cathode electrode assembly passes from bottom to top, allowing the cathode electrode assembly to be fixed within the liquid reaction chamber and cooperate with the anode electrode assembly to form a stable and efficient electrochemical reaction system. The opening in the upper shell ensures that the electrode assembly can fully contact the liquid and gas in the reaction chamber, thereby achieving a normal electrochemical reaction and helping to improve the efficiency of hydrogen peroxide generation and the stability of the reaction.

[0055] Additionally, a seal is installed between the cathode electrode assembly and the opening in the upper housing to effectively prevent liquids and gases in the reaction chamber from leaking out through the gap between the electrode and the opening. For liquids, this prevents the loss of reaction raw materials, ensuring a sufficient and stable amount of materials required for the reaction. For gases, it ensures that the reaction gases maintain a suitable concentration and pressure, maintaining a stable reaction environment so that the reaction can proceed smoothly as expected. This helps improve the quality and concentration of hydrogen peroxide production, while also avoiding potential safety hazards and adverse effects on the surrounding environment caused by leakage. Specifically, the seal can be made of hydrogen peroxide-resistant silicone, fluororubber, polytetrafluoroethylene, or sealant.

[0056] like Figures 5 to 7 The invention relates to a critical high-concentration hydrogen peroxide generator, wherein the cathode electrode assembly 231 and the anode electrode assembly 232 are provided in multiple ways, the lowest height of the liquid outlet 22 is higher than the lowest height of the cathode electrode assembly 231, and the liquid outlet 22 is provided with a downwardly inclined guide 27.

[0057] Furthermore, as a preferred embodiment of this invention and not a limitation thereof, equipping the device with multiple cathode electrode assemblies and anode electrode assemblies can significantly increase the total surface area of ​​the electrodes. In electrochemical reactions, a larger electrode area provides more reaction sites for reactant adsorption and redox reactions, thereby accelerating the generation rate of hydrogen peroxide. The synergistic effect of more electrode assemblies increases the amount of substances participating in the reaction per unit time, effectively improving the production efficiency of the entire hydrogen peroxide reaction module and helping to obtain more hydrogen peroxide products in the same amount of time.

[0058] Specifically, multiple electrode assemblies are evenly distributed within the liquid reaction chamber, enabling the reaction to proceed more uniformly throughout the chamber. This avoids the possibility of overly concentrated or insufficient localized reactions that might occur with only a small number of electrodes, ensuring that the reactants can fully contact and transform with the electrodes in all areas. Furthermore, the distribution of the generated hydrogen peroxide in terms of concentration and purity is also more uniform.

[0059] Specifically, the hydrogen peroxide reaction module is set horizontally, and the height of the outlet ensures that the liquid can contact the bottom of the cathode electrode assembly, thereby forming a reaction site and preventing the reaction liquid from leaving the liquid reaction chamber without reacting.

[0060] Furthermore, the downward-sloping design of the guide member helps guide the liquid flowing from the outlet, allowing it to smoothly exit the liquid reaction chamber along the inclined direction of the guide member, preventing liquid stagnation and accumulation near the outlet. Timely drainage of the reacted liquid helps maintain normal circulation and renewal within the reaction chamber, ensuring that new reactant liquid can be replenished promptly, allowing the reaction to proceed continuously and efficiently.

[0061] like Figures 9 to 10 The illustrated critical high-concentration hydrogen peroxide generator has a mounting bracket 7 with a mounting bracket opening 71 for the hydrogen peroxide reaction module 2 to extend into, a mounting cavity 72 communicating with the mounting bracket opening 71, and a positioning member 73 for positioning the hydrogen peroxide reaction module 2. The positioning member 73 has a positioning support portion 731 that abuts against the upper side of the mounting bracket opening 71. The positioning member 73 is U-shaped or V-shaped.

[0062] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, during equipment assembly, operators can place the hydrogen peroxide reaction module into the mounting cavity through the opening in the mounting bracket, allowing the hydrogen peroxide reaction module to be installed quickly and accurately. This improves the assembly efficiency of the entire hydrogen peroxide generator and reduces the time and labor costs consumed during installation. Additionally, workers can access the hydrogen peroxide reaction module inside the mounting cavity through the opening in the mounting bracket, easily removing it for inspection, repair, or replacement. This significantly reduces maintenance difficulty, shortens equipment downtime, and ensures the overall maintainability and operational stability of the equipment.

[0063] Furthermore, during the placement of the hydrogen peroxide reaction module into the mounting cavity, the cooperation between the positioning component and the hydrogen peroxide reaction module ensures that the module is in the predetermined and accurate position. The positioning support on the positioning component abuts against the upper side of the opening of the mounting bracket, providing a support structure for the hydrogen peroxide reaction module and effectively preventing vertical displacement or shaking of the module during operation.

[0064] The U-shaped or V-shaped positioning element structure offers excellent shape adaptability, accommodating various hydrogen peroxide reaction modules and mounting brackets of different shapes. The U-shaped or V-shaped structure allows the positioning element to limit and secure the hydrogen peroxide reaction module from multiple directions. Compared to simple linear positioning structures, this shape better encloses and holds the hydrogen peroxide reaction module, enhancing the stability of the positioning and further preventing the module from shifting or loosening under forces such as vibrations during equipment operation or impacts from liquid flow. This ensures the hydrogen peroxide reaction module remains stably in the correct installation position over the long term.

[0065] like Figures 2 to 10 The illustrated critical high-concentration hydrogen peroxide generator has a collection section 4 for collecting the liquid from the outlet 22 and an inclined section 41 located below the outlet 22 on the other side of the mounting bracket 7. The collection section 4 is connected to the water tank 1, and the inclined section 41 is used to guide the liquid from the outlet 22 to the collection section 4.

[0066] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the liquid outlet is located on the upper side of the water tank. With the guiding effect of the inclined part, the liquid's own weight is used to achieve natural backflow from the hydrogen peroxide reaction module to the water tank, reducing the dependence on the water pump.

[0067] Specifically, the inclined section is located below the liquid outlet, guiding the liquid from the outlet to the collection section. Due to its inclined design, the liquid flows naturally and smoothly to the collection section under the influence of gravity, avoiding the accumulation and residue of liquid near the outlet. This timely and thorough diversion of liquid prevents residual liquid from causing corrosion or other adverse effects on the environment around the outlet, and also ensures timely replenishment of the liquid in the reaction chamber, maintaining a good reaction environment and improving the efficiency and stability of the hydrogen peroxide reaction.

[0068] Specifically, the inclined section guides the hydrogen peroxide-containing liquid along the collecting section into the water tank cavity, avoiding concentration dilution caused by vigorous mixing with the existing liquid. With the help of the inclined section and the collecting section, the liquid generated by the hydrogen peroxide reaction module can be efficiently returned to the water tank cavity, and then transported back to the hydrogen peroxide reaction module through the circulation module to continue participating in the reaction. This helps to accelerate the liquid circulation speed, allowing the liquid to circulate and react multiple times within the device, improving the utilization rate of raw materials and the efficiency of hydrogen peroxide generation, and making it more conducive to obtaining high-concentration hydrogen peroxide products.

[0069] Furthermore, the design of the outlet being located on the upper side of the water tank makes it easier for staff to observe the liquid flow during routine inspections, allowing them to visually determine whether the liquid flow rate and state are normal. The upper outlet and the inclined section are connected by a quick-release mechanism, allowing the hydrogen peroxide reaction module to be separated for maintenance without emptying the water tank.

[0070] like Figures 1 to 4 The invention relates to a critical high-concentration hydrogen peroxide generator, wherein the air inlet 241 is located on the lower side of the frame 100, the side of the mounting bracket 7 is provided with a plurality of air holes 74 communicating with the mounting cavity 72, the exhaust port 242 is arranged opposite to the air holes 74, and the height of the exhaust port 242 is higher than the height of the air inlet 241.

[0071] Optionally, in some embodiments, the lower part of the frame is more convenient for installing an air pre-filtration device, such as a filter screen or other basic filtration components. Before the air enters the inlet, it can be pre-filtered to remove larger particles of dust and impurities, preventing these impurities from entering the gas-solid-liquid reaction zone and affecting the normal progress of the reaction. For example, it prevents impurities from adhering to the electrode surface and interfering with the electrochemical process or from mixing into the reaction solution and altering the properties of the reaction system, thereby improving the purity and stability of the reaction and facilitating the generation of high-quality hydrogen peroxide.

[0072] Specifically, the presence of multiple vents allows the incoming air to be evenly distributed within the mounting cavity and then diffused to the area where the hydrogen peroxide reaction module is located. This prevents air from concentrating in one place and causing excessively high or low local gas concentrations in the reaction area, making the gas distribution in the entire reaction space more uniform and reasonable. This ensures that the reactions in each part can proceed fully under similar gas conditions, which helps to improve the uniformity of the reaction and the overall efficiency.

[0073] Optionally, in some embodiments, the vents are symmetrically arranged on both sides of the mounting bracket and perpendicular to the opening direction of the mounting bracket, thereby forming air convection.

[0074] In addition, the uniformly dispersed air, after entering through the pores, can better contact the liquid and the solid of the cathode electrode assembly, forming a gas-liquid-solid three-phase reaction environment. The exchange and interaction of matter between the phases are more frequent and sufficient, which greatly increases the contact area and reaction opportunities, allowing the substances participating in the reaction to be converted into hydrogen peroxide more efficiently, improving the conversion rate of raw materials, and helping to obtain hydrogen peroxide products with higher concentrations and greater yields.

[0075] Specifically, the exhaust port and the gas inlet are positioned opposite each other to form a smooth airflow channel, allowing the gas produced after the reaction, as well as any excess unreacted gas, to be discharged from the device in an orderly manner along the airflow channel. This avoids the accumulation and stagnation of gas within the device, which could affect the normal progress of the reaction, ensures timely renewal and circulation of gas within the reaction area, maintains a stable gas pressure and concentration environment, and helps the reaction to proceed continuously and stably, thereby improving the efficiency and stability of hydrogen peroxide generation.

[0076] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the air inlet is located on the lower side of the frame, which can utilize the gravity of the air itself and the natural air pressure difference to allow outside air to enter the device more smoothly.

[0077] Specifically, because the exhaust port is higher than the inlet, the natural convection principle of hot air rising and cold air sinking further promotes the natural circulation and renewal of air within the device. The hot gases generated during the reaction are more easily discharged from the higher exhaust port, while relatively cooler outside air continuously replenishes the device from the lower inlet, forming a continuous and automatic air circulation process. This not only improves air utilization efficiency but also better regulates environmental factors such as temperature and humidity within the device, creating more suitable conditions for the hydrogen peroxide reaction and contributing to improved product quality and reaction efficiency.

[0078] like Figure 8The invention relates to a critical high-concentration hydrogen peroxide generator, wherein the hydrogen peroxide reaction module 2 is equipped with a current detection module 26, and the water tank 1 is connected to an electrolyte supply device 5, a concentration detection module 14, and a liquid level detection module 15.

[0079] Furthermore, as a preferred embodiment of this utility model and not a limitation, in the electrochemical preparation of hydrogen peroxide, the electrolyte is continuously consumed as the reaction proceeds. The electrolyte supply device is connected to a water tank, enabling timely and appropriate replenishment of electrolyte to the reaction system, ensuring that the electrolyte concentration within the system remains at a suitable level. This guarantees the stable conditions required for the electrochemical reaction, allowing the reaction to proceed continuously, stably, and effectively, and preventing situations where insufficient electrolyte leads to reduced reaction efficiency or failure to proceed normally.

[0080] Specifically, the electrolyte supply device stores a high concentration of sodium sulfate solution. When an electrolyte deficiency is detected, the sodium sulfate solution can be transferred from the electrolyte supply device to the water tank by calculating the mixing amount.

[0081] The drain pipe 13 is connected to a first control valve 131 and a manual drain valve 132.

[0082] Furthermore, as a preferred embodiment of this utility model and not a limitation thereof, the first control valve is configured to achieve relatively precise control of the discharge flow rate. According to actual production needs, reaction stages, and subsequent arrangements for the treatment of the discharged liquid, the operator can remotely control the valve or automatically adjust the opening of the first control valve according to the set time and conditions through preset program instructions, so as to finely adjust the discharge speed and flow rate.

[0083] In addition, in the event of emergencies, such as failure of the automated control system, power outage, or the need for rapid liquid drainage, operators can directly operate the manual drain valve to quickly open or close the drain channel, thereby achieving emergency discharge or blockage of the liquid. This enhances the emergency response capability of the entire device in special circumstances and ensures the safety of the device and its surrounding environment.

[0084] Optionally, in some embodiments, the current detection module can monitor the current within the hydrogen peroxide reaction module in real time. Based on the current value fed back by the current detection module, the operator can further analyze the conductivity of the reaction system, the working status of the electrodes, etc., to adjust reaction conditions such as electrolyte concentration and electrode voltage, so that the reaction can proceed under more optimal electrical parameters, improve reaction efficiency, and help obtain higher concentrations and more stable hydrogen peroxide.

[0085] Optionally, in some embodiments, the concentration detection module can detect the concentration of hydrogen peroxide in the water tank cavity in real time. For low-concentration products that do not meet the requirements, it can help to discover problems such as abnormal raw material ratios and fluctuations in reaction conditions that may occur during the reaction process. Operators can take corresponding measures in a timely manner, such as adjusting the reaction time and the number of cycles, to ensure that the final hydrogen peroxide produced meets the quality requirements of the actual application scenario.

[0086] Optionally, in some embodiments, the water level detection module can monitor the water level in the water tank cavity in real time. When the water level is too high and approaches or reaches the warning value, it can promptly issue an alarm signal to remind personnel to take appropriate measures, such as suspending liquid intake or starting liquid drainage, to prevent the liquid in the tank from overflowing due to excessive water level, and to prevent liquid leakage from causing safety hazards such as corrosion and pollution to the surrounding environment, thus ensuring the safety of the device and the surrounding environment. When the water level is too low, it is detected and an alert is issued to prevent related components such as water pumps that rely on liquid from running dry due to lack of water, avoiding damage to components, extending the service life of the device, and ensuring that the device can operate continuously and stably.

[0087] like Figures 2 to 4 The invention relates to a critical high-concentration hydrogen peroxide generator, wherein the circulation module 3 includes a water pump 31 disposed in the water tank 1, and multiple hydrogen peroxide reaction modules 2 are provided, with multiple water pumps 31 corresponding one-to-one with each hydrogen peroxide reaction module 2.

[0088] Specifically, the hydrogen peroxide reaction module 2 is provided in multiple groups and arranged in parallel along the vertical direction.

[0089] Furthermore, as a preferred embodiment of this utility model and not a limitation, multiple sets of hydrogen peroxide reaction modules are provided, enabling more reaction units to simultaneously carry out hydrogen peroxide preparation reactions within the same time period. Compared to a single set of modules, multiple parallel sets can significantly increase the amount of raw materials participating in the reaction per unit time, thereby increasing the overall production yield of hydrogen peroxide, effectively improving the production efficiency of the entire device, and meeting the needs of larger-scale production.

[0090] Specifically, multiple hydrogen peroxide reaction modules are arranged parallel to each other in the vertical direction, making full use of the vertical space of the device and making the overall structure more compact. Compared with arranging multiple modules in a distributed manner on a plane, this layout can accommodate more hydrogen peroxide reaction modules in a limited area, improving space utilization and facilitating the installation and layout of the device in factories of different sizes and other locations.

[0091] Furthermore, each hydrogen peroxide module can be controlled and adjusted relatively independently. Operators can adjust reaction conditions such as reaction temperature, current intensity, and liquid flow rate for different modules according to actual production needs, achieving refined management of the reaction process of each module. For example, parameters can be appropriately increased for modules that require faster reaction speeds, while troubleshooting and parameter adjustments can be performed individually for modules exhibiting abnormal reactions, making the entire production process more flexible and controllable.

[0092] In addition, if one of the modules malfunctions, such as electrode damage or abnormal gas-liquid supply, the other normal modules can still continue the reaction, preventing a complete interruption of the hydrogen peroxide production process and ensuring the continuity and stability of production.

[0093] The circulation module 3 also includes a connecting pipe 32 connecting the liquid inlet 21 and the water pump 31.

[0094] Furthermore, as a preferred embodiment of this utility model and not a limitation, the water pump provides a stable power source for liquid circulation. The water pump can overcome the resistance encountered by the liquid flowing between the pipes and components such as the hydrogen peroxide reaction module and the water tank, ensuring that low-concentration hydrogen peroxide can be smoothly and continuously transported from the water tank cavity to the inlet of the hydrogen peroxide reaction module through the connecting pipe, thereby achieving efficient liquid circulation and ensuring the orderly progress of the entire reaction cycle.

[0095] Optionally, in some embodiments, the flow rate of the liquid can be controlled by a water pump, thereby adjusting the quality of hydrogen peroxide production.

[0096] Optionally, in some embodiments, the connecting pipe is made of a material resistant to hydrogen peroxide to prevent liquid leakage, flow interruption, etc. Optionally, in some embodiments, the connecting pipe can be a flexible hose made of materials such as polytetrafluoroethylene, perfluoroether rubber, or perfluoroethylene propylene.

[0097] Example 1

[0098] like Figures 1 to 10 The illustrated critical high-concentration hydrogen peroxide generator includes a frame 100. The frame 100 has a frame cavity 24, an air inlet 241 and an exhaust outlet 242 respectively connected to the frame cavity 24. The frame cavity 24 has a hydrogen peroxide reaction module 2, a water tank 1 connected to the hydrogen peroxide reaction module 2, and a circulation module 3 for circulating and transporting liquid. The hydrogen peroxide reaction module 24 has a liquid reaction chamber 23 and a gas-solid-liquid reaction zone 25 located between the frame cavity 24 and the liquid reaction chamber 23.

[0099] This invention, by setting up a critical hydrogen peroxide reaction module 2, forms a gas-solid critical surface between the frame cavity 24 and the gas-solid-liquid reaction zone 25, and a solid-liquid critical surface between the gas-solid-liquid reaction zone 25 and the liquid reaction chamber 23. Through the flow of gas and electrolyte, hydrogen peroxide generation is promoted. This invention also sets up a circulation module 3, which allows the low-concentration hydrogen peroxide generated by the hydrogen peroxide reaction module 2 to be collected in the water tank 1 and then transferred back to the hydrogen peroxide reaction module 2 to continue the reaction. By allowing the liquid to participate in the reaction process multiple times, a step-by-step accumulation reaction is achieved, thereby alleviating electrode polarization and reducing side reaction interference, which helps to increase the final concentration of hydrogen peroxide generated, and realizes integrated continuous production.

[0100] Example 2

[0101] Example 2, based on Example 1, has the following implementation method:

[0102] The frame cavity 24 is provided with a mounting bracket 7 for supporting the hydrogen peroxide reaction module 2 and a suction device 6 for accelerating airflow. The hydrogen peroxide reaction module 2 is located on the upper side of the water tank 1, and the circulation module 3 is located inside the water tank 1.

[0103] Example 3

[0104] Example 3, based on Example 2, has the following implementation method:

[0105] The hydrogen peroxide reaction module 2 includes a cathode electrode assembly 231, an anode electrode assembly 232 located in the liquid reaction chamber 23, and an inlet 21 and an outlet 22 that are respectively connected to the liquid reaction chamber 23. The cathode electrode assembly 231 is in contact with the gas on one side and with the liquid on the other side to form a gas-solid-liquid reaction zone.

[0106] The hydrogen peroxide reaction module 2 includes a detachable upper housing 28 and a lower housing 29, which together form the liquid reaction chamber 23. The upper housing 28 has an opening 281 through which part of the cathode electrode assembly 231 passes. The anode electrode assembly 232 is fixed to the lower housing 29. A sealing element connects the cathode electrode assembly 231 and the opening 281.

[0107] The cathode electrode assembly 231 and the anode electrode assembly 232 are provided in multiple ways. The lowest height of the liquid outlet 22 is higher than the lowest height of the cathode electrode assembly 231. The liquid outlet 22 is provided with a downwardly inclined guide 27.

[0108] Example 4

[0109] Example 4, based on Example 2, has the following implementation method:

[0110] On the other side of the mounting bracket 7, there is a collecting part 4 for collecting the liquid from the outlet 22 and an inclined part 41 located below the outlet 22. The collecting part 4 is connected to the water tank 1, and the inclined part 41 is used to guide the liquid from the outlet 22 to the collecting part 4.

[0111] The mounting bracket 7 has a mounting bracket opening 71 for the hydrogen peroxide reaction module 2 to extend into, a mounting cavity 72 communicating with the mounting bracket opening 71, and a positioning member 73 for positioning the hydrogen peroxide reaction module 2. The positioning member 73 has a positioning support portion 731 that abuts against the upper side of the mounting bracket opening 71. The positioning member 73 is U-shaped.

[0112] Example 5

[0113] Example 5, based on Example 2, has the following implementation method:

[0114] The air inlet 241 is located on the lower side of the frame 100. The side of the mounting bracket 7 is provided with a plurality of air holes 74 communicating with the mounting cavity 72. The exhaust port 242 is arranged opposite to the air holes 74, and the height of the exhaust port 242 is higher than the height of the air inlet 241.

[0115] The vents 74 are symmetrically arranged on both sides of the mounting bracket 7 and perpendicular to the direction of the opening 71 of the mounting bracket, thereby forming air convection.

[0116] Example 6

[0117] Example 6, based on Example 1, has the following implementation method:

[0118] The hydrogen peroxide reaction module 2 is equipped with a current detection module 26, and the water tank 1 is connected to an electrolyte supply device 5, a concentration detection module 14, and a liquid level detection module 15.

[0119] Example 7

[0120] Example 7, based on Example 1, has the following implementation method:

[0121] The circulation module 3 includes a water pump 31 installed in the water tank 1. The hydrogen peroxide reaction module 2 is provided in multiple ways, and the water pump 31 is provided in multiple ways and corresponds one-to-one with the hydrogen peroxide reaction module 2.

[0122] The circulation module 3 also includes a connecting pipe 32 connecting the liquid inlet 21 and the water pump 31.

[0123] The water tank is equipped with an inlet pipe 12 that directly enters the tap water. The outside of the water tank is equipped with a water pipe joint that connects to the electrolyte supply device and a drain pipe 13 that connects to the external liquid storage device. The drain pipe 13 is connected to a first control valve 131 and a manual drain valve 132.

[0124] The above examples are merely illustrative of the technical content of this utility model to facilitate reader understanding, but do not imply that the implementation of this utility model is limited to these embodiments. Any technical extensions or re-creations made based on this utility model are protected by this utility model. The scope of protection of this utility model is defined by the claims.

Claims

1. A critical high-concentration hydrogen peroxide generator comprising a frame (100), characterized in that: The frame (100) is provided with a frame cavity (24), an air inlet (241) and an exhaust outlet (242) respectively connected to the frame cavity (24). The frame cavity (24) is provided with a hydrogen peroxide reaction module (2), a water tank (1) connected to the hydrogen peroxide reaction module (2), and a circulation module (3) for circulating liquid. The hydrogen peroxide reaction module (24) is provided with a liquid reaction chamber (23) and a gas-solid-liquid reaction zone (25) located between the frame cavity (24) and the liquid reaction chamber (23).

2. The critical high-concentration hydrogen peroxide generator according to claim 1, characterized in that: The frame cavity (24) is provided with a mounting bracket (7) for supporting the hydrogen peroxide reaction module (2) and a suction device (6) for accelerating air flow. The hydrogen peroxide reaction module (2) is located on the upper side of the water tank (1), and the circulation module (3) is located inside the water tank (1).

3. The critical high-concentration hydrogen peroxide generator according to claim 2, characterized in that: The hydrogen peroxide reaction module (2) includes a cathode electrode assembly (231), an anode electrode assembly (232) located in the liquid reaction chamber (23), an inlet (21) and an outlet (22) respectively connected to the liquid reaction chamber (23). The cathode electrode assembly (231) is in contact with the gas on one side and with the liquid on the other side to form a gas-solid-liquid reaction zone.

4. A critical high-concentration hydrogen peroxide generator according to claim 3, characterized in that: The hydrogen peroxide reaction module (2) includes a detachable upper shell (28) and a lower shell (29), which together form the liquid reaction chamber (23). The upper shell (28) has an opening (281) through which part of the cathode electrode assembly (231) passes. The anode electrode assembly (232) is fixed to the lower shell (29). A seal is connected between the cathode electrode assembly (231) and the opening (281).

5. The critical high-concentration hydrogen peroxide generator according to claim 3, characterized in that: The cathode electrode assembly (231) and the anode electrode assembly (232) are provided with multiple components. The lowest height of the liquid outlet (22) is higher than the lowest height of the cathode electrode assembly (231). The liquid outlet (22) is provided with a downwardly inclined guide (27).

6. The critical high-concentration hydrogen peroxide generator according to claim 2, characterized in that: The mounting bracket (7) has a mounting bracket opening (71) for the hydrogen peroxide reaction module (2) to extend into, a mounting cavity (72) communicating with the mounting bracket opening (71), and a positioning member (73) for positioning the hydrogen peroxide reaction module (2). The positioning member (73) has a positioning support portion (731) that abuts against the upper side of the mounting bracket opening (71). The positioning member (73) is U-shaped or V-shaped.

7. The critical high-concentration hydrogen peroxide generator according to claim 3, characterized in that: The mounting bracket (7) is provided with a collecting part (4) for collecting the liquid from the outlet (22) and an inclined part (41) located below the outlet (22) on the other side. The collecting part (4) is connected to the water tank (1), and the inclined part (41) is used to guide the liquid from the outlet (22) to the collecting part (4).

8. The critical high-concentration hydrogen peroxide generator according to claim 6, characterized in that: The air inlet (241) is located on the lower side of the frame (100). The side of the mounting bracket (7) is provided with a plurality of air holes (74) communicating with the mounting cavity (72). The exhaust port (242) is arranged opposite to the air holes (74), and the height of the exhaust port (242) is higher than the height of the air inlet (241).

9. The critical high-concentration hydrogen peroxide generator according to claim 1, characterized in that: The hydrogen peroxide reaction module (2) is equipped with a current detection module (26), and the water tank (1) is connected to an electrolyte supply device (5), a concentration detection module (14), and a liquid level detection module (15).

10. A critical high-concentration hydrogen peroxide generator according to claim 1, characterized in that: The circulation module (3) includes a water pump (31) installed in the water tank (1). The hydrogen peroxide reaction module (2) is provided in multiple ways, and the water pump (31) is provided in multiple ways and corresponds one-to-one with the hydrogen peroxide reaction module (2).

Images