Water purification system and method

Abstract

The invention discloses a water purification system and method, and relates to the technical field of water purification, a water inlet waterway of the water purification system is provided with a filtering module, an alkaline water outlet waterway is provided with an electrolysis module and an alkaline water outlet, the water outlet side of the filtering module is connected with the water inlet side of the electrolysis module, and the water outlet side of the electrolysis module is connected with the alkaline water outlet. The water outlet side of the filtering module is also connected with a pure water outlet waterway; a water inlet of the pure water backflow waterway is arranged between the water outlet side of the filtering module and the pure water outlet waterway, and a water outlet of the pure water backflow waterway is connected with the water inlet side of the electrolysis module; the filtering module is used for filtering tap water flowing through the water inlet waterway to obtain fresh mineral water and pure water, conveying the pure water to the pure water outlet waterway and the pure water backflow waterway, and conveying the fresh mineral water to the water inlet side of the electrolysis module; and the electrolysis module is used for receiving the fresh mineral water filtered by the filtering module and the backflow pure water conveyed by the pure water backflow water path and carrying out electrolysis according to the fresh mineral water and the backflow pure water to obtain alkaline water.

Description

Technical Field

[0001] This application relates to the field of water purification technology, and more particularly to water purification systems and methods. Background Technology

[0002] As people pay increasing attention to health, their requirements for drinking water quality are also rising. Electrolysis is an effective water treatment method. Electrolyzed water refers to the process of electrolyzing raw water, resulting in acidic and alkaline electrolyzed water at the anode and cathode, respectively. Acidic electrolyzed water contains more acid radicals (H+ ions) and oxidizing groups, while alkaline electrolyzed water contains more hydroxide ions (OH- ions) and reducing hydrogen molecules. Studies have shown that drinking weakly alkaline electrolyzed water helps regulate the body's acid-base balance, eliminate free radicals, and enhance immunity. Acidic water, due to the presence of hydroxyl radicals and hypochlorous acid, has bactericidal and anti-inflammatory effects and can be used for beauty and skincare, as well as for sterilizing and cleaning fruits, vegetables, and clothing.

[0003] Compared to traditional methods of adjusting pH by adding chemical reagents, electrolysis involves flowing water through an electrolytic cell where water molecules decompose under the influence of direct current, producing both alkaline and acidic water. The entire process requires no added chemical reagents, which is beneficial for food safety and quality assurance. Currently, the TDS (Total Dissolved Solids) value of the raw water used for electrolysis is relatively high, resulting in poor electrolysis efficiency. Summary of the Invention

[0004] The main purpose of this application is to provide a water purification system and method that aims to solve the technical problem of poor performance in current water electrolysis.

[0005] To achieve the above objectives, this application proposes a water purification system, which includes: an inlet water path, a pure water outlet water path, an alkaline water outlet water path, and a pure water return water path;

[0006] A filtration module is provided on the inlet water line, and an electrolysis module and an alkaline water outlet are provided on the alkaline water outlet line. The outlet side of the filtration module is connected to the inlet side of the electrolysis module, the outlet side of the electrolysis module is connected to the alkaline water outlet, and the outlet side of the filtration module is also connected to the pure water outlet line.

[0007] The inlet of the pure water return path is located between the outlet of the filter module and the pure water outlet path, and the outlet of the pure water return path is connected to the inlet of the electrolysis module.

[0008] The filtration module is used to filter the tap water flowing through the inlet water path to obtain fresh mineral water and pure water, and to transport the pure water to the pure water outlet water path and the pure water return water path, and to transport the fresh mineral water to the inlet side of the electrolysis module.

[0009] The electrolysis module is used to receive the fresh mineral water filtered by the filtration module and the return pure water transmitted by the pure water return path, and to electrolyze the fresh mineral water and the return pure water to obtain alkaline water.

[0010] In one embodiment, the water inlet circuit is further provided with a three-way valve, a first water inlet regulating component, and a booster pump, and the filtration module includes a pre-filter, a post-filter, and a reverse osmosis filter.

[0011] Tap water flows sequentially through the inlet three-way valve, the pre-filter, the first inlet regulating component, the booster pump, the reverse osmosis filter, and the post-filter to obtain pure water. The post-filter is connected to the pure water return path and the pure water outlet path.

[0012] Tap water flows sequentially through the inlet three-way valve, the pre-filter, and the first inlet regulating component to obtain fresh mineral water. The first inlet regulating component is connected to the inlet side of the electrolysis module.

[0013] In one embodiment, the alkaline water outlet path is further provided with a flow control valve, a first outlet water regulating component, and a flow meter;

[0014] The first inlet water regulating component, the flow control valve, the first outlet water regulating component, the flow meter, and the inlet side of the electrolysis module are connected in sequence.

[0015] In one embodiment, the pure water outlet circuit is provided with a first one-way valve, a high-pressure switch, a second outlet regulating component, and a pure water outlet, and the outlet side of the post-filter, the first one-way valve, the high-pressure switch, the second outlet regulating component, and the pure water outlet are connected in sequence;

[0016] The first one-way valve is configured to conduct from the post-filter cartridge to the pure water outlet.

[0017] In one embodiment, the pure water return path is provided with a second inlet regulating component and a second one-way valve. One end of the second inlet regulating component is connected to the outlet side of the post-filter element, and the other end of the second inlet regulating component is connected to one end of the second one-way valve. The other end of the second one-way valve is connected to the electrolysis module.

[0018] The second one-way valve is configured to be open from the post-filter element to the electrolysis module;

[0019] The pure water from the outlet side of the post-filter cartridge passes sequentially through the second inlet regulating component and the second one-way valve to obtain reflux pure water.

[0020] In one embodiment, a water quality index detection module is further provided in the water inlet path, and the water quality index detection module is disposed between the first water inlet regulating component and the electrolysis module;

[0021] The water quality index detection module is used to detect the current water quality index value of the mixed water after mixing the fresh mineral water and the reflux pure water, and to control the electrical control parameters of the electrolysis module according to the current water quality index value.

[0022] In one embodiment, the water purification system further includes a wastewater outlet path, wherein the outlet side of the electrolysis module and the outlet side of the filtration module are both connected to the wastewater outlet path.

[0023] The wastewater outlet channel is used to transport the wastewater filtered by the filtration module and the acidic water electrolyzed by the electrolysis module.

[0024] In one embodiment, the wastewater outlet path is provided with a wastewater regulating component, a third one-way valve, and a wastewater outlet. One end of the wastewater regulating component is connected to the outlet side of the filter module, and the other end of the wastewater regulating component is connected to the wastewater outlet. One end of the third one-way valve is connected to the outlet side of the electrolysis module, and the other end of the third one-way valve is connected to the wastewater outlet. The third one-way valve is configured to conduct in the direction from the electrolysis module to the wastewater outlet.

[0025] Furthermore, to achieve the above objectives, this application also proposes a water purification method, which is applied to the water purification system described above, and the water purification method includes:

[0026] Obtain users' water demand;

[0027] When the water demand is for alkaline water, the first water inlet regulating component, the second water inlet regulating component, the booster pump and the first water outlet regulating component are turned on so that the fresh mineral water and the return pure water are mixed and then enter the electrolysis module.

[0028] Determine the target electrical control parameters of the electrolysis module, and electrolyze the mixed water of the fresh mineral water and the reflux pure water using the target electrical control parameters to obtain alkaline water.

[0029] In one embodiment, the step of determining the target electrical control parameters of the electrolysis module, and electrolyzing the mixed water of the fresh mineral water and the reflux pure water using the target electrical control parameters to obtain alkaline water includes:

[0030] The current water quality index value of the mixed water after mixing the fresh mineral water and the reflux pure water is detected by the water quality index detection module;

[0031] Determine the corresponding target current based on the current water quality index values;

[0032] The mixture of fresh mineral water and refluxed pure water is electrolyzed using the target current to obtain alkaline water.

[0033] In one embodiment, the step of determining the corresponding target current based on the current water quality index value includes:

[0034] To obtain the correspondence between water quality index values ​​and current;

[0035] The target current corresponding to the current water quality index value is determined based on the current water quality index value and the corresponding relationship.

[0036] In one embodiment, the method further includes:

[0037] When the water demand is for alkaline water, the target water quality index value required by the user is obtained;

[0038] The opening degrees of the first inlet regulating component, the second inlet regulating component, and the first outlet regulating component are controlled according to the target water quality index value to change the water quality index value of the mixed water after the fresh mineral water and the return pure water enter the electrolysis module.

[0039] The water purification system proposed in this application includes one or more technical solutions, comprising: an inlet water path, a pure water outlet water path, an alkaline water outlet water path, and a pure water return water path; a filter module is provided on the inlet water path, an electrolysis module and an alkaline water outlet are provided on the alkaline water outlet water path, the outlet side of the filter module is connected to the inlet side of the electrolysis module, the outlet side of the electrolysis module is connected to the alkaline water outlet, and the outlet side of the filter module is also connected to the pure water outlet water path; the inlet of the pure water return water path is located on the outlet side of the filter module and connected to the pure water outlet water path. Between the pure water outlet path and the pure water return path, the outlet of the pure water return path is connected to the inlet side of the electrolysis module. The filtration module filters the tap water flowing through the inlet path to obtain fresh mineral water and pure water. The pure water is then transported to the pure water outlet path and the pure water return path, and the fresh mineral water is also transported to the inlet side of the electrolysis module. The electrolysis module receives the fresh mineral water filtered by the filtration module and the returned pure water from the pure water return path, and electrolyzes the fresh mineral water and the returned pure water to obtain alkaline water. The mixed water, consisting of the fresh mineral water filtered by the filtration module and the returned pure water from the pure water return path, is then transported to the electrolysis module for electrolysis. This reduces the TDS value of the water entering the electrolysis module, ensuring the electrolysis effect while preventing scaling at the alkaline water end of the electrolysis module and extending its service life. Attached Figure Description

[0040] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the structure of the first embodiment of the water purification system of this application;

[0043] Figure 2 This is a schematic diagram of the structure of the second embodiment of the water purification system of this application;

[0044] Figure 3 This is a schematic flowchart of the first embodiment of the water purification method of this application;

[0045] Figure 4 This is a schematic flowchart of the second embodiment of the water purification method of this application.

[0046] Explanation of icon numbers:

[0047] Water inlet circuit 11, pure water outlet circuit 12, alkaline water outlet circuit 13, pure water return circuit 14;

[0048] Filter module 100, electrolysis module 110, inlet three-way valve 120, first inlet regulating component 130, booster pump 140, flow control valve 150, first outlet regulating component 160, flow meter 170, first check valve 180, high pressure switch 190, second outlet regulating component 200, second inlet regulating component 210, second check valve 220, water quality index detection module 230, wastewater regulating component 240, third check valve 250;

[0049] Pre-filter 101, post-filter 102, and reverse osmosis filter 103;

[0050] Alkaline water outlet A1, pure water outlet A2, wastewater outlet A3, pipeline machine B.

[0051] The purpose, features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0052] It should be understood that the specific embodiments described herein are merely illustrative of the technical solutions of this application and are not intended to limit this application.

[0053] To better understand the technical solution of this application, a detailed description will be provided below in conjunction with the accompanying drawings and specific implementation methods.

[0054] Because existing technology directly uses an electrolysis module to electrolyze fresh mineral water after preliminary filtration, if the TDS value of the fresh mineral water is high, the electrolysis effect is poor and cannot meet the user's needs. Furthermore, because the TDS value of the water flowing into the electrolysis module is high, the alkaline water end of the electrolysis module is prone to scaling, which poses a risk of damage and affects the service life of the electrolysis module.

[0055] This application provides a solution to add an alkaline water outlet path to the existing pure water and fresh mineral water outlet paths of the original water purification system. This allows the return pure water from the pure water return path to be mixed with the fresh mineral water from the fresh mineral water outlet path, thereby reducing the TDS value of the original fresh mineral water, reducing the TDS value of the water flowing into the electrolysis module, improving the electrolysis effect, and extending the service life of the electrolysis module.

[0056] It should be noted that the executing entity in this embodiment can be a computing service device with data processing, network communication, and program execution functions, such as a tablet computer, personal computer, or mobile phone, or an electronic device or water purification system capable of performing the above functions. The following description uses a water purification system as an example to illustrate this embodiment and the subsequent embodiments.

[0057] Based on this, the embodiments of this application provide a water purification system, referring to... Figure 1 , Figure 1 This is a schematic diagram of the structure of the first embodiment of the water purification system of this application.

[0058] The water purification system includes: an inlet water path 11, a pure water outlet water path 12, an alkaline water outlet water path 13, and a pure water return water path 14.

[0059] A filter module 100 is provided on the water inlet channel 11, and an electrolysis module 110 and an alkaline water outlet A1 are provided on the alkaline water outlet channel 13. The water outlet side of the filter module 100 is connected to the water inlet side of the electrolysis module 110, the water outlet side of the electrolysis module 110 is connected to the alkaline water outlet A1, and the water outlet side of the filter module 100 is also connected to the pure water outlet channel 12.

[0060] The inlet of the pure water return water path 14 is located between the outlet of the filter module 100 and the pure water outlet water path 12, and the outlet of the pure water return water path 14 is connected to the inlet of the electrolysis module 110.

[0061] The filtration module 100 is used to filter the tap water flowing through the inlet water path 11 to obtain fresh mineral water and pure water, and to transport the pure water to the pure water outlet water path 12 and the pure water return water path 14, and to transport the fresh mineral water to the inlet side of the electrolysis module 110.

[0062] Electrolysis module 110 is used to receive fresh mineral water filtered by filter module 100 and return pure water transmitted by pure water return path 14, and to electrolyze the fresh mineral water and the return pure water to obtain alkaline water.

[0063] It should be noted that the inlet water passage 11 typically uses corrosion-resistant plastic pipes, such as PP (polypropylene) pipes. One end of the inlet water passage 11 is connected to tap water, and its function is to introduce external water into the water purifier for treatment. The filter module 100 is installed on the inlet water passage 11 and can filter the tap water flowing into the water purifier. More specifically, the filter module 100 may include a pre-filter 101, a post-filter 102, and a reverse osmosis filter 103. The pre-filter 101 and post-filter 102 form a composite filter. The pre-filter 101 is generally made of PP cotton, cylindrical in shape, and installed near the water inlet, mainly used to filter large particulate impurities such as sediment and rust. The reverse osmosis filter 103 has a spiral wound structure and is mostly made of aromatic polyamide composite membrane, removing heavy metal ions, bacteria, viruses, and other minute impurities from the water through high-precision filtration. The post-filter 103 is typically made of activated carbon and is cylindrical in shape. It is installed after the reverse osmosis filter 102 to improve the taste of the water. This structural design effectively performs multi-stage filtration of the raw water, ensuring that the water entering the pure water outlet 12 reaches a high level of purity and improving the quality of the pure water.

[0064] It is understood that the electrolysis module 110 is installed on the alkaline water outlet channel 13. The water inlet side of the electrolysis module 110 is connected to the water outlet side of the filter module 100 and the water outlet of the pure water return channel 14, so that it can receive the fresh mineral water filtered by the filter module 100 and the return pure water returned by the pure water return channel 14, and obtain the mixed water after mixing the fresh mineral water and the return pure water. The mixed water has a lower TDS value than the fresh mineral water that flows directly into the electrolysis module 110, thereby improving the electrolysis effect of the electrolysis module 110.

[0065] It should be noted that if the electrolysis module 110 is not present or is not working, the water flowing out of the alkaline water outlet 13 will be fresh mineral water. If the electrolysis module 110 is working, the water flowing out of the alkaline water outlet 13 will be alkaline water. The pH value of the alkaline water can be adjusted according to the electrical control parameters of the electrolysis module 110.

[0066] The inlet of the pure water return water path 14 is located between the outlet side of the filter module 100 and the pure water outlet water path 12, so that it can receive pure water flowing from the outlet side of the filter module 100. The pure water is mineral-free pure water obtained after multiple filtrations by the filter module 100.

[0067] In one feasible implementation, the water inlet channel 11 is also provided with a water inlet three-way valve 120, a first water inlet regulating component 130, and a booster pump 140.

[0068] Tap water flows through the inlet three-way valve 120, the pre-filter 101, the first inlet regulating component 130, the booster pump 140, the reverse osmosis filter 103, and the post-filter 102 in sequence to obtain pure water. The post-filter 102 is connected to the pure water return water passage 14 and the pure water outlet water passage 12.

[0069] Tap water flows through the inlet three-way valve 120, the pre-filter 101, and the first inlet regulating component 130 in sequence to obtain fresh mineral water. The first inlet regulating component 130 is connected to the inlet side of the electrolysis module 110.

[0070] It should be noted that the first water inlet regulating component 130 is used to regulate the water flow entering the electrolysis module 110 and flowing through the booster pump. The first water inlet regulating component 130 can also be used to control the opening and closing of the water inlet circuit 11. The first water inlet regulating component 130 can be a component that can regulate water flow, such as a solenoid valve or a throttle valve. For example, if the first water inlet regulating component 130 is a solenoid valve, when the solenoid valve is closed, the tap water cannot proceed to the subsequent processes after the initial filtration by the pre-filter element 101.

[0071] In practice, a water purification system can be a water purifier, which can be a water dispenser, an under-sink water purifier, etc.

[0072] Please continue reading. Figure 1 In one embodiment, the alkaline water outlet channel 13 is further provided with a flow control valve 150, a first outlet water regulating component 160, and a flow meter 170;

[0073] The first inlet water regulating component 130, the flow control valve 150, the first outlet water regulating component 160, the flow meter 170, and the inlet side of the electrolysis module 110 are connected in sequence.

[0074] It should be noted that, in order to improve the control of the mixed water flowing through the electrolysis module 110, a flow control valve 150, a first outlet water regulating component 160 and a flow meter 170 can be installed on the alkaline water outlet water path 13, so as to control the flow rate of water flowing into the electrolysis module 110 and the flow rate of alkaline water flowing out from the alkaline water outlet A1.

[0075] In practical implementation, the flow control valve 150 is used to regulate the flow rate of water through the electrolysis module 110 to ensure the stability and efficiency of the electrolysis process. The first outlet water regulating component 160 also serves to regulate the flow rate and control the on / off state of the alkaline water outlet path 13 to meet different user needs. The flow meter 170 is used to monitor the flow rate of water through the electrolysis module 110 in real time, providing data support for the precise control and optimized operation of the system.

[0076] Furthermore, to improve the control of the pure water flow and prevent the backflow of pure water in the pure water outlet 12, the pure water outlet 12 is equipped with a first one-way valve 180, a high-pressure switch 190, a second outlet regulating component 200, and a pure water outlet A2. The outlet side of the post-filter 102, the first one-way valve 180, the high-pressure switch 190, the second outlet regulating component 200, and the pure water outlet A2 are connected in sequence. The first one-way valve 180 is configured to conduct from the post-filter 102 to the pure water outlet A2.

[0077] In practical implementation, the first one-way valve 180 is unidirectional, allowing only pure water to flow from the post-filter 102 to the pure water outlet A2, effectively preventing backflow of pure water in the outlet path and ensuring the purity and stability of the pure water. The high-pressure switch 190 monitors the water pressure in the pure water outlet path 12. When the water pressure reaches a preset value, the high-pressure switch 190 automatically cuts off the power, stopping the water production process to avoid damage to the water purification system due to excessive water pressure. The second outlet regulating component 200 is used to regulate the pure water flow rate and control the opening and closing of the pure water outlet path 12 to meet different user water needs. For example, the second outlet regulating component 200 is a solenoid valve; when the solenoid valve is closed, no water flows from the pure water outlet A2 of the pure water outlet path 12. A water dispenser B is also installed between the high-pressure switch 190 and the second outlet regulating component 200.

[0078] The water dispenser B is connected to the second water outlet regulating component 200 and is used to heat or cool pure water to meet the user's needs for pure water at different temperatures. In practice, the water dispenser can be wall-mounted or tabletop, allowing users to choose according to their usage scenarios.

[0079] Please continue reading. Figure 1 In one embodiment, a second inlet regulating component 210 and a second one-way valve 220 are provided on the pure water return water path 14. One end of the second inlet regulating component 210 is connected to the outlet side of the post filter element 102, and the other end of the second inlet regulating component 210 is connected to one end of the second one-way valve 220. The other end of the second one-way valve 220 is connected to the electrolysis module 110.

[0080] The second one-way valve 220 is configured to conduct in the direction from the post-filter 102 to the electrolysis module 110; the pure water from the outlet side of the post-filter 102 passes through the second inlet regulating component 210 and the second one-way valve 220 in sequence to obtain reflux pure water.

[0081] It should be noted that the pure water return water path 14 is equipped with a second inlet regulating component 210 for regulating the flow of pure water and the opening and closing of the pure water return water path 14. The second inlet regulating component 210 can be a throttle valve or a solenoid valve. The second one-way valve 220 unidirectionally guides the post-filter 102 to the electrolysis module 110, thereby preventing the fresh mineral water filtered by the pre-filter 101 and the mixed water in the electrolysis module 110 from flowing back to the pure water return water path 14. Tap water passes through a pre-filter 101, a first inlet regulating component 130, a booster pump 140, a reverse osmosis filter 103, and a post-filter 102 to obtain pure water. Part of the pure water flows into the pure water outlet A2 through the first one-way valve 180, and part of it flows through the second inlet regulating component 210 and the second one-way valve 220 as return pure water. This pure water mixes with the fresh mineral water directly output from the pre-filter 101 and flows into the electrolysis module 110 for electrolysis to obtain alkaline water.

[0082] In summary, this application provides a water purification system that adds an alkaline water outlet path to the existing pure water and fresh mineral water outlet paths of the original water purification system. This allows the return pure water from the pure water return path to be mixed with the fresh mineral water, reducing the TDS value of the original fresh mineral water, improving the electrolysis effect, and extending the service life of the electrolysis module. Furthermore, by adding components such as a water dispenser, controller, and display screen, the system's intelligence level and user experience are enhanced.

[0083] Based on the first embodiment of the water purification system of this application, in the second embodiment of the water purification system of this application, the contents that are the same as or similar to those in the first embodiment of the water purification system described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 2 The water inlet channel 11 is also equipped with a water quality index detection module 230, which is located between the first water inlet regulating component 130 and the electrolysis module 110.

[0084] The water quality index detection module 230 is used to detect the current water quality index value of the mixed water after mixing fresh mineral water and reflux pure water, and to control the electrical control parameters of the electrolysis module 110 according to the current water quality index value.

[0085] It should be noted that the water quality index detection module 230 is located between the first water inlet regulating component 130 and the water inlet side of the electrolysis module 110. The water quality index detection module 230 is used to detect the TDS value of the mixed water after the fresh mineral water supplied by the first water inlet regulating component 130 and the return pure water supplied by the second one-way valve 220 on the pure water return water path 14 are mixed, which is the current water quality index value. In order to ensure that the alkalinity of the effluent is stable within a certain range under different water quality conditions, the electrical control parameters of the electrolysis module 110 can be controlled according to the current water quality value, so that the pH value of the alkaline water is stable within the set range.

[0086] Please continue to refer to Figure 2 The water purification system also includes a wastewater outlet channel 15, which is used to output the filtered wastewater.

[0087] The wastewater outlet side of the electrolysis module 110 and the wastewater outlet side of the filter module 100 are both connected to the wastewater outlet water passage 15.

[0088] Wastewater outlet path 15 is used to transport wastewater filtered by filter module 100 and acidic water electrolyzed by electrolysis module 110. Both the wastewater obtained after filtration by filter module 100 and the acidic water obtained after electrolysis by electrolysis module 110 are discharged from wastewater outlet path 15.

[0089] Please continue to refer to Figure 2The wastewater outlet water passage 15 is equipped with a wastewater regulating component 240, a third one-way valve 250, and a wastewater outlet A3. One end of the wastewater regulating component 240 is connected to the outlet side of the filter module 100, and the other end of the wastewater regulating component 240 is connected to the wastewater outlet A3. One end of the third one-way valve 250 is connected to the outlet side of the electrolysis module 110, and the other end of the third one-way valve 250 is connected to the wastewater outlet A3. The third one-way valve 250 is configured to conduct in the direction from the electrolysis module 110 to the wastewater outlet A3.

[0090] It should be noted that the wastewater regulating component 240 is mainly a wastewater solenoid valve or a wastewater throttling valve, used to control the flow rate of wastewater through the wastewater outlet channel 15 and to control the opening and closing of the wastewater outlet channel 15. Specifically, one end of the wastewater regulating component 240 is connected to the reverse osmosis filter element 103 in the filter module 100, and the other end is connected to the wastewater outlet A3. Specifically, the main function of the reverse osmosis filter element 103 is to remove various harmful substances from the water, such as heavy metal ions, bacteria, viruses, and organic matter. The wastewater outlet channel 15 discharges concentrated water containing these harmful substances, preventing these substances from circulating within the system, thereby ensuring that the water flowing out after filtration by the reverse osmosis filter element 103 has high purity and good water quality. Moreover, the existence of the wastewater outlet channel 15 can maintain the pressure difference and water flow velocity on both sides of the reverse osmosis membrane, enabling the reverse osmosis process to proceed smoothly, maintaining high filtration efficiency, and ensuring the output and quality of purified water. By discharging wastewater, it is also possible to prevent impurities from forming fouling on the surface of the reverse osmosis membrane, ensuring that the reverse osmosis filter element 103 can work continuously and stably, and extending its service life. In specific implementation, the wastewater outlet of the electrolysis module 110 flows to the wastewater outlet A3 after passing through the third one-way valve 250.

[0091] In practice, the acid and alkaline water at the outlet can be switched by adjusting the positive and negative electrodes of the electrolytic cell in the electrolysis module 110, thereby meeting the different water needs of users.

[0092] The water inlet channel 11 is also equipped with a water quality index detection module 230, which is located between the first water inlet regulating component 130 and the electrolysis module 110.

[0093] In this embodiment, a water quality indicator detection module 230 is also provided on the inlet water circuit 11. The water quality indicator detection module 230 is located between the first inlet water regulating component 130 and the electrolysis module 110. The water quality indicator detection module 230 is used to detect the current water quality indicator value of the mixed water after the fresh mineral water and the return pure water are mixed, and to control the electrical control parameters of the electrolysis module 110 according to the current water quality indicator value. By monitoring the TDS value of the mixed water in real time by the water quality indicator detection module 230, and dynamically adjusting the current, voltage or electrolysis time of the electrolysis module 110 by the control system, the pH value of the alkaline water can be kept stable within the preset range. Even if the raw water quality fluctuates (such as the TDS value being too high or too low), the consistency of the alkalinity of the effluent can be maintained by intelligent adjustment of the electrical control parameters, which solves the problem of unstable effluent quality caused by water quality changes in traditional electrolysis systems.

[0094] This application also provides a water purification method, which is applied to the water purification system described above. Please refer to [reference needed]. Figure 3 , Figure 3 This is a schematic flowchart of the first embodiment of the water purification method of this application.

[0095] In this embodiment, the water purification method includes steps S10 to S30:

[0096] Step S10: Obtain the user's water demand.

[0097] It should be noted that in the water purification system described above, the user's water intake needs may include alkaline water, acidic water, pure water, and fresh mineral water, etc. The specific components in the water purification system can be controlled according to the user's different water intake needs, thereby meeting the user's different water intake needs.

[0098] In one possible implementation, after step S10, the method further includes:

[0099] When the water demand is for pure water, the second water inlet regulating component and the first water outlet regulating component are closed, and the first water inlet regulating component and the booster pump are turned on, so that the tap water is filtered by the filter module to obtain pure water and enter the pure water outlet water path.

[0100] When the water demand is for fresh mineral water, the first inlet regulating component and the first outlet regulating component are turned on, and the booster pump, the second inlet regulating component and the second outlet regulating component are turned off. At the same time, the electronic control module is turned off, and the fresh mineral water that has been preliminarily filtered by the filtration module flows through the outlet through the first outlet regulating component to obtain fresh mineral water.

[0101] Step S20: When the water demand is for alkaline water, control the first water inlet regulating component, the second water inlet regulating component, the booster pump and the first water outlet regulating component to turn on so that the fresh mineral water and the return pure water are mixed and then enter the electrolysis module.

[0102] Understandably, if the water requirement is for alkaline water, then the first inlet regulating component, the second inlet regulating component, the booster pump, and the first outlet regulating component will be turned on. This will allow the fresh mineral water filtered by the pre-filter and the pure water completely filtered by the filter module to be mixed before entering the electrolysis module for electrolysis. This can reduce the TDS (>50ppm) of the water entering the electrolysis module to a certain extent, thus ensuring the electrolysis effect.

[0103] In one feasible implementation, if the user has requirements for water quality index values, i.e., TDS values, the opening degree of the regulating component can be controlled. Therefore, after step S10, the method further includes: when the water demand is to take alkaline water, obtaining the target water quality index value required by the user; and controlling the opening degree of the first water inlet regulating component, the second water inlet regulating component, and the first water outlet regulating component according to the target water quality index value, so as to change the water quality index value of the mixed water after the fresh mineral water and the return pure water are mixed in the electrolysis module.

[0104] Understandably, the target water quality index value is the TDS value of the alkaline water required by the user, such as 60, 80, etc. After the target water quality index value is determined, the opening degree of the first inlet water regulating component, the second inlet water regulating component, and the first outlet water regulating component can be adjusted to change the water quality index value of the fresh mineral water and mixed water entering the electrolysis module to meet the user's needs.

[0105] Step S30: Determine the target electrical control parameters of the electrolysis module, and electrolyze the mixed water of fresh mineral water and reflux pure water using the target electrical control parameters to obtain alkaline water.

[0106] It should be noted that the target electrical control parameters can be current, voltage, and operating time, etc. This embodiment does not limit these. There is a corresponding relationship between the target electrical control parameters and the TDS value, so the specific electrical control parameters can be determined. The electrical control module can be controlled through the electrical control parameters to obtain alkaline water after electrolysis of mixed water, so that the alkaline water is stabilized within a certain range.

[0107] This embodiment provides a water purification method. It obtains the user's water demand. When the demand is for alkaline water, it controls the activation of a first inlet regulating component, a second inlet regulating component, a booster pump, and a first outlet regulating component to allow fresh mineral water and recycled pure water to mix before entering the electrolysis module. It determines the target electrical control parameters for the electrolysis module and electrolyzes the mixture of fresh mineral water and recycled pure water using these parameters to obtain alkaline water. The mixture of fresh mineral water filtered by the filtration module and recycled pure water from the pure water return path is then transported to the electrolysis module for electrolysis, thereby reducing the TDS value of the water entering the electrolysis module. This ensures effective electrolysis while preventing scaling at the alkaline water end of the electrolysis module, thus extending its service life.

[0108] Based on the first embodiment of the water purification method of this application, in the second embodiment of the water purification method of this application, the content that is the same as or similar to the first embodiment of the water purification method described above can be referred to the above description, and will not be repeated hereafter. Based on this, please refer to... Figure 4 Step S30 includes steps S301 to S303:

[0109] Step S301: Obtain the current water quality index value of the mixed water after mixing fresh mineral water and reflux pure water, as detected by the water quality index detection module.

[0110] It should be noted that the water quality index detection module is used to detect the TDS value of the water after mixing fresh mineral water and recycled pure water, and therefore can obtain the current TDS value of the mixed water.

[0111] Step S302: Determine the corresponding target current based on the current water quality index value.

[0112] As shown in Tables 1 and 2, Tables 1 and 2 show the TDS values ​​of different types of water tested under different currents and the relationship between pH values ​​when the same TDS value is tested under different currents.

[0113] Table 1

[0114]

[0115] For example, the raw water in Table 1 is tap water with a TDS value of 102 and an alkalinity of pH 7.8. After filtering the raw water to form fresh mineral water and recycled pure water, the mixed water has a TDS value of 66 and an alkalinity of pH 7.57. Compared to the tap water, the mixed water has lower TDS and pH values.

[0116] Table 2

[0117]

[0118] The raw water in Table 2 is water-efficiency water, with a TDS value of 456 and an alkalinity of pH 8.2. After filtering the water-efficiency water, fresh mineral water and recycled pure water are formed. The fresh mineral water and recycled pure water are mixed to obtain mixed water with a TDS value of 292 and an alkalinity of pH 7.71. Compared with the TDS and pH values ​​of the water-efficiency water, the TDS and pH values ​​of the mixed water are both lower.

[0119] As shown in Tables 1 and 2 above, the TDS value of the water was high before mixing. After mixing the fresh mineral water with the recycled pure water, the TDS value decreased significantly, and the pH value also decreased significantly compared with that before mixing. Furthermore, the pH value of the final alkaline water produced was different under different currents.

[0120] The quality of the effluent from the electrolytic alkaline water treatment system can be adjusted through electronic control parameters to ensure that the alkalinity of the effluent remains stable within a certain range under different water qualities. Generally, constant current control is achieved by outputting different currents based on the influent TDS value. Areas with higher TDS typically have higher alkalinity, which can worsen the electrolysis effect. Therefore, in areas with high TDS, the current needs to be appropriately increased to maintain the effluent alkalinity. Thus, the target current can be determined based on the current water quality indicators.

[0121] In one feasible implementation, step S302 may include:

[0122] Obtain the correspondence between water quality index values ​​and current; determine the target current corresponding to the current water quality index value based on the current water quality index value and the correspondence.

[0123] Understandably, the correlation between water quality index values ​​and current can be established in advance. For example, the current can be set to 0.2A for TDS below 50, 0.2-0.3A for 50-100, 0.3-0.5A for 100-200, 0.4-0.7A for 200-300, and 0.5-1A for above 300. Table 3 below shows the measured data for different TDS values:

[0124] Table 3

[0125]

[0126] As shown in Table 3 above, for example, if the TDS value of the raw water is 52 and the alkaline pH value is 7.45, the pH value increases from 7.45 to 7.96 when the current is 0.1, and increases from 7.45 to 8.88 when the current is 0.2. If the current is not 0.2 for different TDS values ​​of the raw water, the corresponding alkaline pH value will also change. The pH value of the alkaline water after electrolysis can be adjusted by changing the current.

[0127] As shown in Table 3 above, using different currents at different TDS values ​​can change the pH value of alkaline water, thereby ensuring that the alkalinity of the effluent remains stable within a certain range under different water qualities. Therefore, a correspondence between water quality index values ​​and current can be established based on Table 3, so that the corresponding target current can be directly queried based on the current water quality index value, thereby improving control efficiency.

[0128] Step S303: Electrolyze the mixture of fresh mineral water and reflux pure water using the target current to obtain alkaline water.

[0129] In practice, the mixed water can be electrolyzed according to the target current to obtain alkaline water, so that the alkalinity of the water produced is relatively stable within a certain range under different water qualities.

[0130] This embodiment obtains the current water quality index values ​​of the mixed water after mixing the fresh mineral water and the reflux pure water, as detected by the water quality index detection module; determines the corresponding target current based on the current water quality index values; and electrolyzes the mixed water after mixing the fresh mineral water and the reflux pure water using the target current to obtain alkaline water. The operating current of the electronic control module is adjusted using the target current to ensure that the alkalinity of the effluent remains stable within a certain range under different water qualities.

[0131] It should be noted that the above examples are only for understanding this application and do not constitute a limitation on the water purification method of this application. Any simple modifications based on this technical concept are within the protection scope of this application.

[0132] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this application. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings. For example, two consecutively indicated blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions.

[0133] The modules described in the embodiments of this application can be implemented in software or hardware. The names of the modules do not necessarily limit the functionality of the unit itself.

[0134] The above description is only a part of the embodiments of this application and does not limit the patent scope of this application. All equivalent structural transformations made under the technical concept of this application and using the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included in the patent protection scope of this application.

Claims

1. A water purification system, characterized in that, The water purification system includes: an inlet water path, a pure water outlet water path, an alkaline water outlet water path, and a pure water return water path; A filtration module is provided on the inlet water line, and an electrolysis module and an alkaline water outlet are provided on the alkaline water outlet line. The outlet side of the filtration module is connected to the inlet side of the electrolysis module, the outlet side of the electrolysis module is connected to the alkaline water outlet, and the outlet side of the filtration module is also connected to the pure water outlet line. The inlet of the pure water return path is located between the outlet of the filter module and the pure water outlet path, and the outlet of the pure water return path is connected to the inlet of the electrolysis module. The filtration module is used to filter the tap water flowing through the inlet water path to obtain fresh mineral water and pure water, and to transport the pure water to the pure water outlet water path and the pure water return water path, and to transport the fresh mineral water to the inlet side of the electrolysis module. The electrolysis module is used to receive the fresh mineral water filtered by the filtration module and the return pure water transmitted by the pure water return path, and to electrolyze the fresh mineral water and the return pure water to obtain alkaline water.

2. The water purification system as described in claim 1, characterized in that, The water inlet circuit is also equipped with a three-way valve, a first water inlet regulating component and a booster pump. The filtration module includes a pre-filter, a post-filter and a reverse osmosis filter. Tap water flows sequentially through the inlet three-way valve, the pre-filter, the first inlet regulating component, the booster pump, the reverse osmosis filter, and the post-filter to obtain pure water; Tap water flows sequentially through the inlet three-way valve, the pre-filter, and the first inlet regulating component to obtain fresh mineral water. The first inlet regulating component is connected to the inlet side of the electrolysis module.

3. The water purification system as described in claim 2, characterized in that, The alkaline water outlet circuit is also equipped with a flow control valve, a first outlet regulating component, and a flow meter; The first inlet water regulating component, the flow control valve, the first outlet water regulating component, the flow meter, and the inlet side of the electrolysis module are connected in sequence.

4. The water purification system as described in claim 2, characterized in that, The pure water outlet circuit is equipped with a first one-way valve, a high-pressure switch, a second outlet regulating component, and a pure water outlet. The outlet side of the post-filter, the first one-way valve, the high-pressure switch, the second outlet regulating component, and the pure water outlet are connected in sequence. The first one-way valve is configured to conduct from the post-filter cartridge to the pure water outlet.

5. The water purification system as described in claim 2, characterized in that, The pure water return path is provided with a second inlet regulating component and a second one-way valve. One end of the second inlet regulating component is connected to the outlet side of the post-filter element, and the other end of the second inlet regulating component is connected to one end of the second one-way valve. The other end of the second one-way valve is connected to the electrolysis module. The second one-way valve is configured to be open from the post-filter element to the electrolysis module; The pure water from the outlet side of the post-filter cartridge passes sequentially through the second inlet regulating component and the second one-way valve to obtain reflux pure water.

6. The water purification system as described in claim 2, characterized in that, The water inlet path is also equipped with a water quality index detection module, which is located between the first water inlet regulating component and the electrolysis module. The water quality index detection module is used to detect the current water quality index value of the mixed water after mixing the fresh mineral water and the reflux pure water, and to control the electrical control parameters of the electrolysis module according to the current water quality index value.

7. The water purification system as described in claim 1, characterized in that, The water purification system also includes a wastewater outlet channel, and the outlet side of the electrolysis module and the outlet side of the filtration module are both connected to the wastewater outlet channel. The wastewater outlet channel is used to transport the wastewater filtered by the filtration module and the acidic water electrolyzed by the electrolysis module.

8. The water purification system as described in claim 7, characterized in that, The wastewater outlet is equipped with a wastewater regulating component, a third one-way valve, and a wastewater outlet. One end of the wastewater regulating component is connected to the outlet side of the filter module, and the other end of the wastewater regulating component is connected to the wastewater outlet. One end of the third one-way valve is connected to the outlet side of the electrolysis module, and the other end of the third one-way valve is connected to the wastewater outlet. The third one-way valve is configured to conduct in the direction from the electrolysis module to the wastewater outlet.

9. A water purification method, characterized in that, The water purification method is applied to the water purification system according to any one of claims 1 to 8, and the water purification method includes: Obtain users' water demand; When the water demand is for alkaline water, the first water inlet regulating component, the second water inlet regulating component, the booster pump and the first water outlet regulating component are turned on so that the fresh mineral water and the return pure water are mixed and then enter the electrolysis module. Determine the target electrical control parameters of the electrolysis module, and electrolyze the mixed water of the fresh mineral water and the reflux pure water using the target electrical control parameters to obtain alkaline water.

10. The water purification method as described in claim 9, characterized in that, The step of determining the target electrical control parameters of the electrolysis module, and then electrolyzing the mixed water of the fresh mineral water and the reflux pure water using the target electrical control parameters to obtain alkaline water includes: Obtain the current water quality index value of the mixed water after mixing the fresh mineral water and the reflux pure water, as detected by the water quality index detection module; Determine the corresponding target current based on the current water quality index values; The mixture of fresh mineral water and refluxed pure water is electrolyzed using the target current to obtain alkaline water.

11. The water purification method as described in claim 10, characterized in that, The step of determining the corresponding target current based on the current water quality index value includes: To obtain the correspondence between water quality index values ​​and current; The target current corresponding to the current water quality index value is determined based on the current water quality index value and the corresponding relationship.

12. The water purification method as described in claim 9, characterized in that, The method further includes: When the water demand is for alkaline water, the target water quality index value required by the user is obtained; The opening degrees of the first inlet regulating component, the second inlet regulating component, and the first outlet regulating component are controlled according to the target water quality index value to change the water quality index value of the mixed water after the fresh mineral water and the return pure water enter the electrolysis module.

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