Water purification system and water purification apparatus

Abstract

The utility model relates to water purification equipment field provides a water purification system and water purification equipment, this water purification system includes first filter module, electrolytic module, reverse osmosis module and second filter module who sets gradually along the waterway direction, electrolytic module is equipped with electrolytic cell, is equipped with electrode assembly in electrolytic cell, and electrode assembly is used for electrolysis electrolyte of electrolytic cell to produce sterilization material, and second filter module is equipped with mineralization cavity, is equipped with mineralization filter core in mineralization cavity.

Description

Technical Field

[0001] This utility model belongs to the technical field of water purification equipment, and in particular relates to a water purification system and water purification equipment. Background Technology

[0002] Commercially available water purification equipment typically uses RO (Reverse Osmosis Membrane) technology for water purification. However, due to factors such as broken RO membrane fibers, prolonged use of filter cartridges, and exposure of the outlet to air, bacterial growth can occur. Currently, water purification equipment generally uses ultraviolet (UV) light for sterilization. UV sterilization relies primarily on the radiation effect of UV rays, which has limited penetration ability against microorganisms. For larger microorganisms or those in dead zones in the water flow, the sterilization effect is significantly reduced. Furthermore, UV light only has a sterilizing effect while the water flows through the area irradiated by the lamp; once the water leaves that area, it can no longer inhibit microorganisms. Utility Model Content

[0003] This utility model provides a water purification system and water purification equipment, which aims to solve the problem of low sterilization efficiency of existing water purification equipment.

[0004] The water purification system provided by this utility model includes a first filtration module, an electrolysis module, a reverse osmosis module and a second filtration module arranged sequentially along the water path. The electrolysis module is provided with an electrolysis cell, and the electrolysis cell is provided with an electrode assembly. The electrode assembly is used to electrolyze the electrolyte contained in the electrolysis cell to generate bactericidal substances. The second filtration module is provided with a mineralization chamber, and the mineralization chamber is provided with a mineralization filter element.

[0005] In one embodiment, the electrode assembly includes a cathode electrode, an anode electrode, and a circuit system. The cathode electrode is at least partially disposed within the electrolytic cell, and the anode electrode is at least partially disposed within the electrolytic cell and spaced apart from the cathode electrode. The circuit system is electrically connected to the cathode electrode and the anode electrode.

[0006] In one embodiment, the bactericidal substance includes at least one of hypochlorous acid, ozone, hydroxyl radicals, and superoxide anions.

[0007] In one embodiment, the first filter module is provided with a first filter cavity, and the first filter cavity is provided with a first filter element, the filler of the first filter element including charged fibers.

[0008] In one embodiment, the electrolysis module further includes a chloride addition device, which includes a box for holding chloride, and the box has a discharge port that is connected to the electrolysis cell.

[0009] In one embodiment, the second filtration module is further provided with an adjustment chamber, and a one-way conduction structure is provided between the adjustment chamber and the mineralization chamber. The one-way conduction structure is used to open under unidirectional water pressure to conduct the mineralization chamber and the adjustment chamber. One of the mineralization chamber and the adjustment chamber is connected to the reverse osmosis module, and the other is connected to the water outlet pipe of the water purification system.

[0010] In one embodiment, the water purification system further includes a booster pump, which is connected in series in the flow path between the electrolysis module and the reverse osmosis module.

[0011] In one embodiment, the water purification system further includes a first section of pipeline, a second section of pipeline, and a third section of pipeline. The first section of pipeline is connected in series between the first filtration module and the electrolysis module. The second section of pipeline is connected in series between the electrolysis module and the reverse osmosis module. The third section of pipeline is connected in series between the reverse osmosis module and the second filtration module. The water purification system also includes a first circulation pipeline. One end of the first circulation pipeline is connected to the second section of pipeline, and the other end of the first circulation pipeline is connected to the third section of pipeline. The first circulation pipeline is used to transport the bactericidal substance generated by the electrolysis module to the third section of pipeline.

[0012] In one embodiment, the water purification system further includes an outlet pipe, which is connected in series downstream of the second filtration module; the water purification system further includes a second circulation pipe, one end of which is connected to the second section pipe, and the other end of which is connected to the outlet pipe, the second circulation pipe being used to transport the bactericidal substance generated by the electrolysis module to the outlet pipe.

[0013] This utility model also proposes a water purification device, which includes the water purification system mentioned above.

[0014] This water purification system incorporates an electrolysis module connected in series in the flow path between the first filtration module and the reverse osmosis module. This electrolysis generates bactericidal substances that possess strong oxidizing capabilities, rapidly penetrating the cell walls and membranes of microorganisms and disrupting their internal protein and nucleic acid structures, thus achieving highly efficient sterilization. Furthermore, the bactericidal substances generated by the electrolysis module, carried by the water flow, participate in the subsequent water purification process of the reverse osmosis module and the mineralization process of the second filtration module, continuing to kill microorganisms or inhibiting bacterial growth in subsequent pipelines and water purification modules. This extends the sterilization range of the electrolysis module and ensures a more lasting sterilization effect for the entire water purification system. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a connection diagram of an embodiment of the water purification system provided by this utility model;

[0017] Figure 2 This is a connection diagram of another embodiment of the water purification system provided by this utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1. First filtration module; 2. Electrolysis module; 3. Reverse osmosis module; 4. Second filtration module; 5. Booster pump; 6. First section of pipeline; 7. Second section of pipeline; 8. Third section of pipeline; 9. Outlet pipeline; 10. First circulation pipeline; 11. Second circulation pipeline; 12. Wastewater discharge pipeline. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to direct setup or connection, or indirect setup or connection through centered components or centered structures.

[0022] Furthermore, in embodiments of this utility model, terms such as "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" are used to indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, or in a conventional placement or usage state. These terms are merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure, feature, device, or element referred to must have a specific orientation or positional relationship, nor that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In the description of this utility model, unless otherwise stated, "multiple" means two or more.

[0023] The various specific technical features and embodiments described in the detailed embodiments can be combined in any suitable manner without contradiction. For example, different implementation methods can be formed by combining different specific technical features / embodiments. In order to avoid unnecessary repetition, the various possible combinations of the various specific technical features / embodiments in this utility model will not be described separately.

[0024] Commercially available water purification equipment typically uses RO (Reverse Osmosis Membrane) technology for water purification. However, due to factors such as broken RO membrane fibers, prolonged use of filter cartridges, and exposure of the outlet to air, bacterial growth can occur. Currently, water purification equipment generally uses ultraviolet (UV) light for sterilization. UV sterilization relies primarily on the radiation effect of UV rays, which has limited penetration ability against microorganisms. For larger microorganisms or those in dead zones in the water flow, the sterilization effect is significantly reduced. Furthermore, UV light only has a sterilizing effect while the water flows through the area irradiated by the lamp; once the water leaves that area, it can no longer inhibit microorganisms.

[0025] To address the problem of low sterilization efficiency in existing water purification equipment, this invention provides a water purification system.

[0026] like Figure 1 and Figure 2 As shown, the water purification system provided by this utility model includes a first filtration module 1, an electrolysis module 2, a reverse osmosis module 3, and a second filtration module 4 arranged sequentially along the water path. The electrolysis module 2 is provided with an electrolysis cell, and an electrode assembly is provided in the electrolysis cell. The electrode assembly is used to electrolyze the electrolyte contained in the electrolysis cell to generate bactericidal substances. The second filtration module 4 is provided with a mineralization chamber, and a mineralization filter element is provided in the mineralization chamber.

[0027] Traditional water purification systems typically use ultraviolet light for physical disinfection. In contrast, this system incorporates an electrolysis module 2 connected in series between the first filtration module 1 and the reverse osmosis module 3. This electrolysis generates bactericidal substances that possess strong oxidizing capabilities, rapidly penetrating the cell walls and membranes of microorganisms and disrupting their internal protein and nucleic acid structures, thus achieving highly efficient sterilization. Furthermore, the bactericidal substances generated by the electrolysis module 2, carried by the water flow, participate in the subsequent water purification process of the reverse osmosis module 3 and the mineralization treatment of the second filtration module 4, continuing to kill microorganisms or inhibiting bacterial growth in subsequent pipes and purification modules. This extends the sterilization range of the electrolysis module 2, ensuring a more lasting sterilization effect for the entire water purification system.

[0028] The first filtration module 1 is used to remove harmful substances such as particulate matter, organic matter, and microorganisms from the water, initially purifying the water quality and providing purer water for subsequent electrolytic disinfection. This reduces the interference of impurities on the electrolytic reaction, improving electrolysis efficiency and sterilization effect. Specifically, the first filtration module 1 has a first filter chamber containing a first filter element. The first filter element can be made of nanomaterials, such as nanofibers, nanoceramics, and nano-activated carbon. These materials have nanoscale pores, high specific surface area, and high adsorption capacity, effectively removing nanoscale particulate matter such as bacteria, viruses, and organic matter. Alternatively, antibacterial materials such as nano-silver can be added to the first filter element to inhibit bacterial growth. Alternatively, charged fibers can be added to the first filter element. These charged fibers have charge properties and a nanoscale porous structure, which not only remove tiny particles, bacteria, viruses, and organic matter from the water through electrostatic adsorption but also enrich ions in the water, improving the water's conductivity and thus promoting the electrolysis reaction efficiency of the subsequent electrolysis module 2.

[0029] Electrolysis module 2 contains an electrolytic cell for holding the electrolyte to be electrolyzed, such as sodium chloride solution, potassium chloride solution, or other chloride solutions. The electrolytic cell contains an electrode assembly, including a cathode electrode, an anode electrode, and a circuit system. The cathode electrode and the anode electrode are both partially disposed within the electrolytic cell, spaced apart from the cathode electrode. The circuit system is electrically connected to both the cathode and anode electrodes. The anode electrode can be made of, but is not limited to, stainless steel, titanium, platinum, or other metals or metal alloys, which possess strong oxidizing properties. The cathode electrode can be made of, but is not limited to, stainless steel, graphite, or other materials with strong reducing properties. The circuit system, electrically connected to the cathode and anode electrodes, applies a stable direct current to them, thereby inducing the electrolysis reaction in electrolysis module 2. During the electrolysis reaction, the anode electrode undergoes an oxidation reaction, oxidizing chloride ions in the water to hypochlorous acid. Hypochlorous acid is a strong oxidizing agent that can destroy the cell walls and cell membranes of bacteria, viruses, and other microorganisms, causing protein denaturation and thus killing the microorganisms. During electrolysis, a reduction reaction occurs at the cathode electrode, producing reducing substances such as hydrogen gas. These substances can, to some extent, affect the living environment of microorganisms, inhibiting their growth and reproduction. Furthermore, water electrolysis may also produce highly oxidizing substances such as hydroxyl radicals, superoxide anions, and ozone. These substances can rapidly react with microorganisms, destroying their cell structure and achieving a sterilization effect.

[0030] The reverse osmosis module 3 is equipped with a second filter chamber, which contains a reverse osmosis membrane (RO membrane). Water molecules can pass through the semi-permeable membrane under the pressure of the water flow, while pollutants such as dissolved salts, organic matter, and bacteria in the water flow are trapped.

[0031] The second filtration module 4 is equipped with a mineralization chamber containing a mineralization filter element. The filter element is made of mineral materials. For example, the filter element can be made of natural rock materials, such as magnesium ore (containing magnesium), celestite (containing strontium), selenium ore (containing selenium), or maifanite (containing calcium, magnesium, potassium, sodium, etc.). Alternatively, the filter element can be made from a mixture of various rock materials. Or, the filter element can be made of artificially modified materials rich in various mineral elements. The mineral salts in the filter element are released into the water body as water flows through or soaks the filter element, transforming the water into mineralized water. In other words, this water purification system can perform mineralization treatment on water.

[0032] To avoid a high mineral concentration in the mineralized water output by the second filtration module 4, in one embodiment, the second filtration module 4 may also be provided with an adjustment chamber. A one-way conduction structure is provided between the adjustment chamber and the mineralization chamber. The one-way conduction structure is used to open under unidirectional water pressure to conduct the mineralization chamber and the adjustment chamber. One of the mineralization chamber and the adjustment chamber is connected to the reverse osmosis module 3, and the other is connected to the water outlet pipe 9 of the water purification system.

[0033] When the mineralization chamber is located upstream of the regulating chamber, the unidirectional flow structure directs water flow from the mineralization chamber to the regulating chamber; conversely, when the regulating chamber is located upstream of the mineralization chamber, the unidirectional flow structure directs water flow from the regulating chamber to the mineralization chamber. This unidirectional flow structure can be a duckbill valve. When there is water flow in the opposite direction to the valve or no flow at all, the valve is closed, preventing free flow of water between the mineralization and regulating chambers. When there is water flow in the forward direction, the valve opens under pressure, allowing free flow of water between the mineralization and regulating chambers. Furthermore, the opening and closing of the unidirectional flow structure depends on water pressure, allowing the operator to flexibly adjust the flow rate and residence time of the water in the mineralization chamber, thereby regulating the mineral content in the mineralized water.

[0034] During the soaking and mineralization process in the mineralization chamber, the water in the water purification system remains still, the one-way flow structure remains closed, and the mineralization chamber and regulating chamber are relatively isolated. The mineralization filter cartridge comes into contact with the water in the mineralization chamber and precipitates minerals. The water in the regulating chamber, which does not have a mineralization filter cartridge, has a low or even no mineral content. When the water purification system finishes the soaking process and outputs water, the one-way flow structure opens under the action of water flow to connect the mineralization chamber and the regulating chamber. The water with a high mineral content in the mineralization chamber mixes with the water with a low mineral content in the regulating chamber, resulting in a moderate mineral concentration in the water output by the water purification system. This effectively controls the mineral content in the mineralized water and, to some extent, solves the problem of excessive mineral content in the water during the soaking of the mineralization filter cartridge.

[0035] This water purification system connects an electrolysis module 2 in series in the flow path between the first filtration module 1 and the second filtration module 4, and a reverse osmosis module 3 in series in the flow path between the electrolysis module 2 and the second filtration module 4. This allows the water in the system to pass sequentially through the first filtration module 1, the electrolysis module 2, the reverse osmosis module 3, and the second filtration module 4. The first filtration module 1 performs preliminary filtration, removing large particles and some microorganisms. The electrolysis module 2 sterilizes and disinfects through electrolysis, killing microorganisms. The reverse osmosis module 3 performs advanced purification, removing dissolved solids and electrolysis byproducts. The second filtration module 4 provides final treatment. Furthermore, the bactericidal substances produced by the electrolysis module 2 can participate in the subsequent treatment processes of the reverse osmosis module 3 and the second filtration module 4 as the water flows, thereby inhibiting bacterial growth in subsequent pipes and modules and extending the sterilization range of the electrolysis module 2.

[0036] This water purification system also includes a booster pump 5, which can be connected in series between the electrolysis module 2 and the reverse osmosis module 3. The booster pump 5 can apply pressure to the water, ensuring that the water passes through the reverse osmosis membrane under sufficient pressure, thereby increasing the permeation rate of water molecules, improving the filtration efficiency of the reverse osmosis module 3, and reducing filtration time.

[0037] This water purification system also includes an outlet pipe 9, which is connected in series downstream of the second filter module 4 to discharge water from the mineralization chamber.

[0038] It is easy to understand that as the electrolysis reaction proceeds, the chloride ions in the electrolyte will gradually decrease, or if the chloride ion content in the raw water is insufficient, the electrolysis reaction will not be able to proceed fully, thus affecting the sterilization effect. To avoid this problem, in this embodiment of the water purification system, the electrolysis module 2 may also include a chloride addition device. The chloride addition device may include a box for holding chloride, and the box has a discharge port that is connected to the electrolysis tank.

[0039] The chloride addition device is used to add chlorides such as sodium chloride and potassium chloride to the electrolytic cell, thereby replenishing chloride ions in the electrolyte, ensuring that the electrolysis reaction can proceed efficiently, stably producing enough hypochlorous acid, and guaranteeing the sterilization effect of the water purification system.

[0040] Optionally, the chloride addition device may also include a cover plate and a control switch. The cover plate is positioned over the discharge port, and the control switch is mounted on the housing and driven by the cover plate to open or close the discharge port. For example, the cover plate may be slidably mounted on the housing, and the control switch may be used to drive the cover plate to slide, thereby opening and closing the discharge port; that is, the cover plate may be a sliding cover design. Alternatively, the cover plate may be hinged to the housing via a hinged structure, and the control switch may be used to drive the cover plate to rotate, thereby opening and closing the discharge port; that is, the cover plate may be a flip-top design.

[0041] The control switch can be manually driven, or it can be automatically driven.

[0042] For example, a chloride addition device may include a chloride ion electrode, a potentiometer, and a controller. The chloride ion electrode is a selective electrode specifically designed for detecting the concentration of chloride ions in a solution; it can be a calomel electrode or a silver chloride electrode. The chloride ion electrode is inserted into the electrolytic cell. The potentiometer is connected to the chloride ion electrode to measure the potential change of the electrode and convert it into a chloride ion concentration value. The controller is electrically connected to the potentiometer and a control switch. The controller acquires the chloride ion concentration value converted by the potentiometer. When the chloride ion concentration value is lower than a set value, the controller outputs a signal to drive the control switch to open the cover. When the detected chloride ion concentration value reaches the set value, the controller outputs a signal to drive the control switch to close the cover, thereby ensuring that the chloride ion concentration in the electrolytic cell is always maintained within the ideal range. This embodiment uses a chloride ion electrode to detect the concentration of chloride ions in the electrolytic cell in real time, converts the potential change of the chloride ion electrode into a chloride ion concentration value using a potentiometer, and then automatically controls the opening and closing of the cover based on these data, avoiding the tedious process of frequent manual detection and operation.

[0043] This water purification system also includes water supply pipelines connecting each module, thereby ensuring that water flows smoothly through each module, as shown in the reference. Figure 1 and Figure 2 The water supply pipeline includes a first section 6, a second section 7, and a third section 8. The first section 6 is connected in series between the first filter module 1 and the electrolysis module 2 to connect the first filter chamber and the electrolysis cell. The second section 7 is connected in series between the electrolysis module 2 and the reverse osmosis module 3 to connect the electrolysis cell and the second filter chamber. The third section 8 is connected in series between the reverse osmosis module 3 and the second filter module 4 to connect the second filter chamber and the mineralization chamber.

[0044] Furthermore, the water purification system may also include a first circulation pipeline 10, one end of which is connected to the second section pipeline 7, and the other end of which is connected to the third section pipeline 8. The first circulation pipeline 10 is used to transport the bactericidal substance generated by the electrolysis module 2 to the third section pipeline 8.

[0045] The first circulation pipeline 10 is used to connect the second pipeline 7 and the third pipeline 8, so that the electrolysis module 2 can not only exert a sterilization effect in its own electrolysis cell, but also transport the sterilizing substance produced by the electrolysis module 2 to the third pipeline 8 through the first circulation pipeline 10. Maintaining a certain concentration of sterilizing substance in the third pipeline 8 and the subsequent second filter module 4 can effectively prevent the growth of microorganisms in the third pipeline 8 and the second filter module 4.

[0046] The water purification system may further include a second circulation pipe 11, one end of which is connected to the second section pipe 7, and the other end of which is connected to the outlet pipe 9. The second circulation pipe 11 is used to transport the bactericidal substance generated by the electrolysis module 2 to the outlet pipe 9.

[0047] The second circulation pipe 11 connects the second section pipe 7 and the outlet pipe 9, delivering the bactericidal substances generated by the electrolysis module 2 to the outlet pipe 9. These substances continue to exert their bactericidal effect in the final effluent stage, ensuring water quality safety. The design of the first circulation pipe 10 and the second circulation pipe 11 allows for a more even distribution of the bactericidal substances throughout the system, ensuring that the water flow is affected by the bactericidal substances at different treatment stages and improving the utilization efficiency of the electrolysis module 2.

[0048] The first circulation pipe 10 and the second circulation pipe 11 can be set up independently of each other, such as... Figure 1 As shown, at this time, the two circulation pipes operate independently, facilitating maintenance and management. Alternatively, the first circulation pipe 10 and the second circulation pipe 11 may have a partial overlap, meaning the second circulation pipe 11 can be a branch line extending from the first circulation pipe 10, such as... Figure 2 As shown in the diagram. This design reduces the total length of the piping and the number of connection points, and the overlapping areas can share the bactericidal substance, reducing waste of the bactericidal substance and enhancing the bactericidal effect of the entire system.

[0049] This water purification system also includes a wastewater discharge pipe 12, which can be connected to the second filter chamber and the outlet pipe 9 in the reverse osmosis module 3. In practical applications, the wastewater discharge pipe 12 can be connected to a wastewater recycling system, and the water collected by the wastewater recycling system can be used for non-potable purposes, such as irrigation and flushing.

[0050] It's easy to understand that the reverse osmosis module 3 generates a certain amount of wastewater during the filtration process. This wastewater contains a high concentration of dissolved solids and contaminants. Through the wastewater discharge pipe 12, this wastewater can be safely discharged into a designated treatment system or environment. In the effluent pipe 9, some water that does not meet water quality standards may need to be discharged. Through the wastewater discharge pipe 12, this water can be guided to the treatment system to ensure that the final effluent meets the standards.

[0051] This utility model also proposes a water purification device, which includes the water purification system described above. The specific structure of the water purification system is as described in the above embodiments. Since this water purification device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions or 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. A water purification system, characterized in that, The device includes a first filtration module, an electrolysis module, a reverse osmosis module, and a second filtration module arranged sequentially along the water path. The electrolysis module is equipped with an electrolysis cell containing an electrode assembly. The electrode assembly is used to electrolyze the electrolyte contained in the electrolysis cell to produce bactericidal substances. The second filtration module is equipped with a mineralization chamber containing a mineralization filter element.

2. The water purification system as described in claim 1, characterized in that, The electrode assembly includes: A cathode electrode, wherein the cathode electrode is at least partially disposed within the electrolytic cell; An anode electrode, which is at least partially disposed within the electrolytic cell and spaced apart from the cathode electrode; A circuit system electrically connected to the cathode electrode and the anode electrode.

3. The water purification system as described in claim 1, characterized in that, The bactericidal substance includes at least one of hypochlorous acid, ozone, hydroxyl radicals, and superoxide anions.

4. The water purification system as described in claim 1, characterized in that, The first filter module is provided with a first filter chamber, and a first filter element is provided inside the first filter chamber. The filling material of the first filter element includes charged fibers.

5. The water purification system as described in claim 1, characterized in that, The electrolysis module also includes a chloride addition device, which includes a box for holding chloride, and a discharge port on the box, which is connected to the electrolysis cell.

6. The water purification system as described in claim 1, characterized in that, The second filtration module is also provided with an adjustment chamber. A one-way conduction structure is provided between the adjustment chamber and the mineralization chamber. The one-way conduction structure is used to open under unidirectional water pressure to conduct the mineralization chamber and the adjustment chamber. One of the mineralization chamber and the adjustment chamber is connected to the reverse osmosis module, and the other is connected to the water outlet pipe of the water purification system.

7. The water purification system as described in claim 1, characterized in that, The water purification system also includes a booster pump, which is connected in series in the flow path between the electrolysis module and the reverse osmosis module.

8. The water purification system as described in claim 1, characterized in that, The water purification system further includes a first section of pipeline, a second section of pipeline, and a third section of pipeline. The first section of pipeline is connected in series between the first filtration module and the electrolysis module. The second section of pipeline is connected in series between the electrolysis module and the reverse osmosis module. The third section of pipeline is connected in series between the reverse osmosis module and the second filtration module. The water purification system further includes a first circulation pipeline, one end of which is connected to the second section of the pipeline, and the other end of which is connected to the third section of the pipeline. The first circulation pipeline is used to transport the bactericidal substance generated by the electrolysis module to the third section of the pipeline.

9. The water purification system as described in claim 8, characterized in that, The water purification system also includes an outlet pipe, which is connected in series downstream of the second filtration module; The water purification system further includes a second circulation pipeline, one end of which is connected to the second section of the pipeline, and the other end of which is connected to the outlet pipeline. The second circulation pipeline is used to transport the bactericidal substance generated by the electrolysis module to the outlet pipeline.

10. A water purification device, characterized in that, Includes the water purification system as described in any one of claims 1 to 9.

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