Water purification system and water purification apparatus

Abstract

This utility model relates to the field of household appliance technology, and provides a water purification system and equipment. The water purification system includes an inlet pipe, a filter assembly, a first outlet pipe, a second outlet pipe, an electrolysis device, and a third outlet pipe. The filter assembly includes a pre-filter and a reverse osmosis device. The first outlet pipe is connected to the inlet pipe downstream of the reverse osmosis device. The second outlet pipe is connected to the inlet pipe between the pre-filter and the reverse osmosis device. The electrolysis device is used to electrolyze raw water to prepare alkaline electrolyzed water. The electrolysis device has an inlet and an alkaline water outlet. The inlet is connected to the second outlet pipe, and the alkaline water outlet is connected to the outlet end of the second outlet pipe. The third outlet pipe is connected to the second outlet pipe upstream of the electrolysis device. The water purification system and equipment provided by this utility model have three water output modes: pure water, weakly alkaline water, and fresh mineral water. It can output ideal water quality according to user needs and meet diverse drinking water requirements.

Description

Technical Field

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

[0002] Studies have shown that drinking weakly alkaline electrolyzed water can help regulate the body's acid-base balance, eliminate free radicals, and enhance immunity. In response, related technologies have disclosed water purification equipment that utilizes an electrolysis mechanism to prepare weakly alkaline water, specifically, after electrolyzing raw water, producing acidic and alkaline electrolyzed water at the anode and cathode, respectively.

[0003] However, existing water purification equipment that can electrolyze weakly alkaline water has the problem of producing water with a single quality, failing to output ideal water quality according to user needs, and failing to solve the diverse drinking water needs of users. Utility Model Content

[0004] This utility model provides a water purification system and equipment to solve the shortcomings of existing water purification equipment that cannot output ideal water quality according to user needs and cannot adapt to the diverse drinking water needs of users.

[0005] This utility model provides a water purification system, including: an inlet pipe, a filter assembly, a first outlet pipe, a second outlet pipe, an electrolysis device, and a third outlet pipe.

[0006] The filtration assembly includes a pre-filter and a reverse osmosis device. Both the pre-filter and the reverse osmosis device are located in the inlet pipe, with the reverse osmosis device downstream of the pre-filter. The first outlet pipe is connected to the inlet pipe downstream of the reverse osmosis device. The second outlet pipe is connected to the inlet pipe between the pre-filter and the reverse osmosis device. The water electrolysis device is used to electrolyze raw water to prepare alkaline electrolyzed water. The water electrolysis device has an inlet and an alkaline water outlet. The inlet is connected to the second outlet pipe, and the alkaline water outlet is connected to the outlet end of the second outlet pipe. The third outlet pipe is connected to the second outlet pipe upstream of the water electrolysis device.

[0007] According to the water purification system provided by this utility model, the outlet end of the third water outlet pipe is connected to the second water outlet pipe located downstream of the water electrolysis device.

[0008] According to the water purification system provided by this utility model, the filtration assembly further includes a post-filter element, which is disposed in the inlet pipe and located downstream of the reverse osmosis device, and the first outlet pipe is connected to the inlet pipe at a position downstream of the post-filter element.

[0009] According to the water purification system provided by this utility model, a first control valve is provided on the inlet pipe, the first control valve is located between the pre-filter and the reverse osmosis device, and the connection position between the second outlet pipe and the inlet pipe is located upstream of the first control valve; a second control valve is provided on the first outlet pipe; a third control valve is provided on the second outlet pipe, and the third control valve is located between the connection position between the third outlet pipe and the second outlet pipe and the water electrolysis device; a fourth control valve is provided on the third outlet pipe.

[0010] The water purification system provided by this utility model further includes: a TDS detection device, wherein the TDS detection device is disposed in the inlet pipe and is located between the pre-filter and the reverse osmosis device, and the TDS detection device is communicatively connected to the water electrolysis device to adjust the current of the water electrolysis device.

[0011] According to the water purification system provided by this utility model, the water electrolysis device includes: a first shell, an anode plate, and a cathode plate.

[0012] The first housing has an inlet, an alkaline water outlet, and an acidic water outlet. An anode cavity and a cathode cavity are formed inside the first housing. The inlet is connected to both the anode cavity and the cathode cavity. The anode cavity is connected to the acidic water outlet, and the cathode cavity is connected to the alkaline water outlet. The anode plate is located inside the anode cavity, and the cathode plate is located inside the cathode cavity.

[0013] According to the water purification system provided by this utility model, the water inlet, the alkaline water outlet, and the acidic water outlet are located on the same side of the first housing.

[0014] According to the water purification system provided by this utility model, the water electrolysis device further includes: a fixed bracket and two sealing plates; the fixed bracket is located in the cathode cavity; both sealing plates are disposed in the fixed bracket, and the two sealing plates are spaced apart along the thickness direction of the fixed bracket, and the outer edge of the sealing plate is sealed to the fixed bracket, so that the anode cavity is formed by the two sealing plates and the fixed bracket together.

[0015] According to the water purification system provided by this utility model, the sealing plate is covered with a flexible sealing layer, and the outer edge of the sealing plate is sealed to the fixed bracket through the flexible sealing layer.

[0016] According to the water purification system provided by this utility model, the cathode plate is provided on both sides of the fixed bracket along the thickness direction.

[0017] According to the water purification system provided by this utility model, the fixed bracket is provided with a slot along the circumference, and the outer edge of the sealing plate is engaged in the slot.

[0018] According to the water purification system provided by this utility model, the fixed bracket includes two bracket units, which are arranged opposite to each other and detachably connected, and the anode plate is clamped between the two bracket units.

[0019] Another aspect of this utility model provides a water purification device, including: a second housing and a water purification system, wherein at least a portion of the water purification system is disposed within the second housing.

[0020] According to the water purification equipment provided by this utility model, an electrical control board is provided inside the second housing, and an installation space is provided between the electrical control board and the inner wall of the second housing, and the water electrolysis device is located in the installation space.

[0021] The water purification system provided by this utility model, by setting up an inlet pipe, a filter assembly, a first outlet pipe, a second outlet pipe, an electrolysis device, and a third outlet pipe, and defining the setting positions of the pre-filter and reverse osmosis device in the filter assembly and the setting position of the electrolysis device, and defining the connection positions of the first outlet pipe, the second outlet pipe, and the third outlet pipe on the inlet pipe, enables the water purification system to have at least three water output modes: pure water, weakly alkaline water, and fresh mineral water, and can output ideal water quality according to user needs, thus meeting the diverse drinking water needs of users.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the water circuit of the water purification system provided in this embodiment of the utility model.

[0025] Figure 2 This is a schematic diagram of the water flow direction of the pure water output in the water purification system provided in this embodiment of the utility model.

[0026] Figure 3 This is a schematic diagram of the water flow direction of the fresh mineral water output in the water purification system provided in this embodiment of the utility model.

[0027] Figure 4 This is a schematic diagram of the water flow direction in the water purification system that outputs weakly alkaline water according to an embodiment of this utility model.

[0028] Figure 5 This is a schematic diagram of the water electrolysis device in the water purification system provided in this embodiment of the utility model.

[0029] Figure 6 This is one of the exploded schematic diagrams of the water electrolysis device in the water purification system provided in this utility model embodiment.

[0030] Figure 7 This is the second exploded schematic diagram of the water electrolysis device in the water purification system provided in this embodiment of the utility model.

[0031] Figure 8 This is a cross-sectional view of the water electrolysis device in the water purification system provided in this embodiment of the utility model.

[0032] Figure 9 yes Figure 8 A magnified view of part A in the diagram.

[0033] Figure 10 This is one of the schematic diagrams of the water purification device provided in the embodiment of this utility model (hidden part: second housing).

[0034] Figure 11 This is a second schematic diagram of the water purification device provided in this embodiment of the utility model (hidden part: second housing).

[0035] Figure label:

[0036] 1. Inlet pipe; 2. Filter assembly; 201. Pre-filter; 202. Reverse osmosis unit; 2021. Booster pump; 2022. Semi-permeable membrane; 203. Post-filter; 3. First outlet pipe; 4. Second outlet pipe; 5. Water electrolysis device; 501. Inlet; 502. Alkaline water outlet; 503. Acidic water outlet; 504. First housing; 505. Anode plate; 506. Cathode plate; 507. Anode cavity; 508. Cathode cavity; 50 9. Fixed bracket; 5091. Bracket unit; 510. Sealing plate; 511. Slot; 6. Third outlet pipe; 7. Fourth outlet pipe; 8. Fifth outlet pipe; 9. First control valve; 10. Second control valve; 11. Third control valve; 12. Fourth control valve; 13. Fifth control valve; 14. Sixth control valve; 15. Check valve; 16. Flow control valve; 17. Flow meter; 18. TDS detection device; 19. Second housing; 20. Electrical control board. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0040] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] The following is combined with Figures 1 to 11 This invention describes the water purification system and equipment provided by this utility model.

[0043] See Figures 1 to 4 As shown, the water purification system provided in this embodiment of the present invention includes: an inlet pipe 1, a filter assembly 2, a first outlet pipe 3, a second outlet pipe 4, an electrolysis water device 5, and a third outlet pipe 6.

[0044] The filtration assembly 2 includes a pre-filter 201 and a reverse osmosis device 202, both of which are located in the inlet pipe 1, with the reverse osmosis device 202 downstream of the pre-filter 201. The first outlet pipe 3 is connected to the inlet pipe 1 downstream of the reverse osmosis device 202. The second outlet pipe 4 is connected to the inlet pipe 1 between the pre-filter 201 and the reverse osmosis device 202. The water electrolysis device 5 is used to electrolyze raw water to prepare alkaline electrolyzed water. The water electrolysis device 5 has an inlet 501 and an alkaline water outlet 502. The inlet 501 is connected to the second outlet pipe 4, and the alkaline water outlet 502 is connected to the outlet end of the second outlet pipe 4. The third outlet pipe 6 is connected to the second outlet pipe 4 upstream of the water electrolysis device 5.

[0045] The water purification system provided by this utility model, by setting up an inlet pipe 1, a filter assembly 2, a first outlet pipe 3, a second outlet pipe 4, an electrolysis device 5, and a third outlet pipe 6, and defining the setting positions of the pre-filter 201 and the reverse osmosis device 202 in the filter assembly 2, as well as the setting position of the electrolysis device 5, and defining the connection positions of the first outlet pipe 3, the second outlet pipe 4, and the third outlet pipe 6 on the inlet pipe 1, enables the water purification system to have at least three water output modes: pure water, weakly alkaline water, and fresh mineral water, and can output ideal water quality according to user needs, thus meeting the diverse drinking water needs of users.

[0046] Specifically, see Figure 2As shown, when a user needs pure water, the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, and the third outlet pipe 6 can be controlled by valves, allowing inlet pipe 1 and the first outlet pipe 3 to be open, while the second outlet pipe 4 and the third outlet pipe 6 are closed. Tap water flows sequentially through the pre-filter 201 and the reverse osmosis device 202, and finally flows out through the outlet end of the first outlet pipe 3. During this process, solid impurities in the tap water (such as silt, rust, suspended solids, etc.) are filtered out by the pre-filter 201, and the water flows into the reverse osmosis device 202. The reverse osmosis device 202 further removes dissolved salts, heavy metals, bacteria, and other harmful substances from the water through the semi-permeable membrane 2022, so that the water quality meets the purity standard.

[0047] See Figure 3 As shown, when a user requires weakly alkaline water, the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, and the third outlet pipe 6 can be controlled by valves, allowing the section of inlet pipe 1 upstream of the reverse osmosis unit 202 and the second outlet pipe 4 to be open, while the first outlet pipe 3 and the third outlet pipe 6 are closed. Tap water flows sequentially through the pre-filter 201 and the water electrolysis device 5, and finally flows out through the outlet end of the second outlet pipe 4. During this process, solid impurities in the tap water (such as silt, rust, suspended solids, etc.) are first filtered out by the pre-filter 201, and then the water rich in dissolved substances (such as ions) enters the water electrolysis device 5. Under the action of electrolysis, weakly alkaline electrolyzed water rich in hydroxide ions (OH- ions) and reducing hydrogen molecules is obtained, and finally flows out through the outlet end of the second outlet pipe 4. In addition, during the process of producing weakly alkaline water, the tap water does not flow through the reverse osmosis device 202, which can effectively retain the ionic components in it, thereby improving the electrolysis effect of the tap water and enhancing the formation efficiency of weakly alkaline water.

[0048] See Figure 4 As shown, when a user needs fresh mineral water, the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, and the third outlet pipe 6 can be controlled by valves, etc., so that the section of inlet pipe 1 upstream of the reverse osmosis unit 202 and the third outlet pipe 6 are open, while the first outlet pipe 3 and the second outlet pipe 4 are closed. Tap water flows through the pre-filter 201 and finally flows out through the outlet end of the third outlet pipe 6. During this process, solid impurities in the tap water (such as silt, rust, suspended solids, etc.) are filtered out by the pre-filter 201, while the beneficial minerals in the water are retained.

[0049] It should be noted that the principle of the water electrolysis device 5 is based on the chemical reaction of water electrolysis. When an electric current passes through water, water molecules are decomposed into hydrogen and oxygen. Near the cathode of the water electrolysis device 5, water molecules are reduced to obtain weakly alkaline electrolyzed water rich in hydroxide ions (OH- ions) and reduced hydrogen molecules, which is commonly used for drinking. Near the anode of the water electrolysis device 5, water molecules are oxidized to obtain weakly acidic water rich in hydrogen ions (H⁺), which can be used for disinfection or cleaning.

[0050] The pre-filter 201 removes large particulate impurities from the water, such as silt, rust, and suspended solids, through physical filtration. It typically uses multi-layered filter media such as polypropylene cotton (PP cotton), activated carbon, or ceramic. These filters intercept larger particles based on their pore size, while activated carbon also adsorbs odors and harmful substances from the water. The reverse osmosis unit 202 usually includes a booster pump 2021 and a semi-permeable membrane 2022. The booster pump 2021 pressurizes the incoming water, and the high pressure forces the water through the semi-permeable membrane 2022, filtering out dissolved salts, bacteria, viruses, heavy metals, and other impurities. The semi-permeable membrane 2022 has extremely small pores, allowing only water molecules to pass through, effectively removing the vast majority of dissolved substances. During filtration, impurities in the water are pushed to one side of the membrane, forming concentrated water, while pure water flows through the membrane to the other side.

[0051] Therefore, in order to export the weakly acidic water and concentrated water in the system, in some embodiments, the water purification system may also be provided with a fourth water outlet pipe 7 and a fifth water outlet pipe 8. The fourth water outlet pipe 7 is connected to the acidic water outlet 503 of the water electrolysis device 5 and is used to output weakly acidic water. The fifth water outlet pipe 8 is connected to the concentrated water outlet of the reverse osmosis device 202 and is used to output concentrated water.

[0052] Furthermore, if there is no need for the use of weakly acidic water and concentrated water, the outlet ends of the fourth outlet pipe 7 and the fifth outlet pipe 8 can be integrated and discharged through a single outlet to simplify the system structure. See [link to relevant documentation]. Figure 1 As shown.

[0053] See Figure 1 As shown, according to some embodiments of the present invention, the outlet end of the third water outlet pipe 6 is connected to the second water outlet pipe 4 located downstream of the water electrolysis device 5.

[0054] By connecting the outlet of the third outlet pipe 6 to the second outlet pipe 4, which is located downstream of the water electrolysis device 5, the outlets of the second outlet pipe 4 and the third outlet pipe 6 can be integrated, allowing both fresh mineral water and weakly alkaline water to flow out from the same outlet of the water purification system, thus simplifying the system structure. Furthermore, with the second outlet pipe 4 and the third outlet pipe 6 sharing an outlet, the fresh mineral water and weakly alkaline water in the shared section of the pipes will not mix or cross-contaminate, thus not affecting the quality of the effluent.

[0055] See Figure 1 As shown, according to some embodiments of the present invention, the filter assembly 2 further includes a post-filter element 203, which is disposed in the water inlet pipe 1 and located downstream of the reverse osmosis device 202. The first water outlet pipe 3 is connected to the water inlet pipe 1 at a position downstream of the post-filter element 203.

[0056] By setting up a post-filter 203, the quality of the purified water output from the water purification system can be further improved.

[0057] Specifically, when a user needs pure water, the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, and the third outlet pipe 6 can be controlled by valves, allowing inlet pipe 1 and the first outlet pipe 3 to be open, while the second outlet pipe 4 and the third outlet pipe 6 are closed. Tap water flows sequentially through the pre-filter 201, the reverse osmosis device 202, and the post-filter 203, and finally flows out through the outlet end of the first outlet pipe 3. During this process, solid impurities in the tap water (such as silt, rust, suspended solids, etc.) are filtered out by the pre-filter 201, and the water flows into the reverse osmosis device 202. The reverse osmosis device 202 further removes dissolved salts, heavy metals, bacteria, and other harmful substances from the water through the semi-permeable membrane 2022. Then, the water enters the post-filter 203 to remove residual chlorine, odors, organic matter, trace particles, and some bacteria and viruses, thereby further improving the quality of the pure water output from the water purification system.

[0058] It should be noted that the post-filter 203 mainly relies on adsorption and filtration, and typically uses materials such as activated carbon and ceramics. It removes organic matter, chlorine, odors, and tiny impurities from the water through the adsorption of activated carbon, while simultaneously using microporous materials to filter out fine particles and microorganisms, further purifying the water and ensuring that the final output water is purer and safer.

[0059] See Figure 1 As shown, in this embodiment, the pre-filter 201 and the post-filter 203 are integrated to form a pre-filter and a post-filter, thereby reducing the space occupied by the system and improving the system's compactness.

[0060] See Figure 1 As shown, according to some embodiments of the present invention, a first control valve 9 is provided on the inlet pipe 1, the first control valve 9 is located between the pre-filter 201 and the reverse osmosis device 202, and the connection position between the second outlet pipe 4 and the inlet pipe 1 is located upstream of the first control valve 9; a second control valve 10 is provided on the first outlet pipe 3; a third control valve 11 is provided on the second outlet pipe 4, and the third control valve 11 is located between the connection position between the third outlet pipe 6 and the second outlet pipe 4 and the water electrolysis device 5; a fourth control valve 12 is provided on the third outlet pipe 6.

[0061] By setting the first control valve 9, the second control valve 10, the third control valve 11 and the fourth control valve 12, the opening or closing of the water inlet pipe 1, the first water outlet pipe 3, the second water outlet pipe 4 and the third water outlet pipe 6 can be controlled respectively, so that the water purification system can adapt to at least three water outlet modes: pure water, weakly alkaline water and fresh mineral water, to meet the different water intake needs of users.

[0062] For example, when a user needs pure water, the first control valve 9 and the second control valve 10 control the inlet pipe 1 and the first outlet pipe 3 to be open, respectively, and the third control valve 11 and the fourth control valve 12 control the second outlet pipe 4 and the third outlet pipe 6 to be closed, respectively. When a user needs weakly alkaline water, the first control valve 9 and the third control valve 11 control the section of the inlet pipe 1 upstream of the reverse osmosis unit 202 and the second outlet pipe 4 to be open, respectively, and the second control valve 10 and the fourth control valve 12 control the first outlet pipe 3 and the fourth outlet pipe 7 to be closed, respectively. When a user needs fresh mineral water, the first control valve 9 and the fourth control valve 12 control the section of the inlet pipe 1 upstream of the reverse osmosis unit 202 and the third outlet pipe 6 to be open, respectively, and the second control valve 10 and the third control valve 11 control the first outlet pipe 3 and the second outlet pipe 4 to be closed, respectively.

[0063] See Figure 1 As shown, according to some embodiments of the present invention, a fifth control valve 13 is provided on the fourth water outlet pipe 7 to control the opening or closing of the fourth water outlet pipe 7, and a sixth control valve 14 is provided on the fifth water outlet pipe 8 to control the opening or closing of the fifth water outlet pipe 8.

[0064] The first control valve 9, the second control valve 10, the third control valve 11, the fourth control valve 12, the fifth control valve 13, and the sixth control valve 14 are all preferably solenoid valves. Solenoid valves have high reliability, fast response speed, and high control accuracy. The system can quickly respond and adjust the opening or closing of the corresponding pipelines to ensure that the water purification system works efficiently and stably during the treatment process, meeting the user's needs for different water qualities such as pure water, fresh mineral water, and weakly alkaline water.

[0065] In some embodiments, a one-way valve 15 may be installed in at least one of the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, the third outlet pipe 6, the fourth outlet pipe 7, and the fifth outlet pipe 8 to prevent backflow of water in the corresponding pipe. Simultaneously, a flow control valve 16 and a flow meter 17 may be installed in at least one of the inlet pipe 1, the first outlet pipe 3, the second outlet pipe 4, the third outlet pipe 6, the fourth outlet pipe 7, and the fifth outlet pipe 8 to control the flow rate of the corresponding pipe and monitor the water flow rate in the pipe in real time.

[0066] As an example, in this embodiment, the first water outlet pipe 3, the second water outlet pipe 4 and the fourth water outlet pipe 7 are all equipped with a one-way valve 15, and the second water outlet pipe 4 is equipped with a flow control valve 16 and a flow meter 17.

[0067] See Figure 1As shown, according to some embodiments of the present invention, the water purification system further includes: a TDS detection device 18, which is located in the water inlet pipe 1 and between the pre-filter 201 and the reverse osmosis device 202. The TDS detection device 18 is communicatively connected to the water electrolysis device 5 to adjust the current of the water electrolysis device 5.

[0068] By setting up a TDS detection device 18, the total dissolved solids (TDS) content in the influent can be detected, and the current intensity of the water electrolysis device 5 can be adjusted according to the total dissolved solids content in the influent to ensure that the alkalinity of the output water is stable within a certain range under different influent water quality conditions, so that the water purification system can be adapted to use in areas with different TDS levels.

[0069] For example, the current is set to 0.2A for TDS below 50, 0.2A to 0.3A for TDS 50 to 100, 0.3A to 0.5A for TDS 100 to 200, 0.4A to 0.7A for TDS 200 to 300, and 0.5A to 1A for TDS above 300.

[0070] It should be noted that the water purification system can be equipped with a controller, and the TDS detection device 18 is communicatively connected to the water electrolysis device 5 through the controller. The controller can receive water quality data from the TDS detection device 18 and automatically adjust the current of the water electrolysis device 5 according to the set threshold.

[0071] In some embodiments, a TDS detection device 18 may be provided between the reverse osmosis unit 202 and the post-filter 203 to detect the total dissolved solids content in the water filtered by the pre-filter 201 and the reverse osmosis unit 202.

[0072] See Figures 5 to 9 As shown, according to some embodiments of the present invention, the water electrolysis device 5 includes: a first housing 504, an anode plate 505, and a cathode plate 506.

[0073] The first housing 504 has an inlet 501, an alkaline water outlet 502, and an acidic water outlet 503. An anode cavity 507 and a cathode cavity 508 are formed inside the first housing 504. The inlet 501 is connected to both the anode cavity 507 and the cathode cavity 508. The anode cavity 507 is connected to the acidic water outlet 503, and the cathode cavity 508 is connected to the alkaline water outlet 502. The anode plate 505 is located inside the anode cavity 507, and the cathode plate 506 is located inside the cathode cavity 508.

[0074] By configuring the water electrolysis device 5 with the above-described structure, it is possible to electrolyze and form weakly alkaline water in the cathode cavity 508 and weakly acidic water in the anode cavity 507 when energized.

[0075] Specifically, after being pre-filtered by the pre-filter element 201, the tap water enters the first housing 504. The water flow is guided to the anode chamber 507 and the cathode chamber 508. Through electrolysis, weakly alkaline water is generated in the cathode chamber 508, and weakly acidic water is generated in the anode chamber 507. The cathode chamber 508 is connected to the alkaline water outlet 502, while the anode chamber 507 is connected to the acidic water outlet 503, allowing the weakly alkaline and weakly acidic water to be discharged independently from the alkaline water outlet 502 and the acidic water outlet 503, respectively, for different purposes.

[0076] See Figure 6 and Figure 7 As shown, both the cathode plate 506 and the anode plate 505 are provided with pins (the pins are located outside the corresponding cavity) for connecting to an external power supply.

[0077] See Figure 5 As shown, according to some embodiments of the present invention, the water inlet 501, the alkaline water outlet 502, and the acidic water outlet 503 are located on the same side of the first housing 504.

[0078] By placing the inlet 501, alkaline water outlet 502, and acidic water outlet 503 on the same side of the first housing 504, the water outlet layout of the water electrolysis device 5 can be optimized, making it easier to connect with components such as the water circuit board of the water purification equipment.

[0079] Specifically, in this embodiment, the first housing 504 is provided with water flow channels corresponding to the water inlet 501, alkaline water outlet 502 and acidic water outlet 503. By setting the extension direction and connection position of the water flow channels, the water inlet 501, alkaline water outlet 502 and acidic water outlet 503 can be located on the same side of the first housing 504.

[0080] See Figures 6 to 9 As shown, according to some embodiments of the present invention, the water electrolysis device 5 further includes a fixed bracket 509 and two sealing plates 510; the fixed bracket 509 is located inside the cathode cavity 508; both sealing plates 510 are disposed inside the fixed bracket 509, and the two sealing plates 510 are spaced apart along the thickness direction of the fixed bracket 509, and the outer edge of the sealing plate 510 is sealed to the fixed bracket 509, so that the anode cavity 507 is formed by the two sealing plates 510 and the fixed bracket 509.

[0081] By setting a fixed bracket 509 and two sealing plates 510 in the water electrolysis device 5, the anode chamber 507 and the cathode chamber 508 can be effectively isolated to prevent cross-contamination between acidic water and alkaline water, and to ensure the independence of acidic water and alkaline water and the purity of water quality.

[0082] Specifically, the fixed bracket 509 is located inside the cathode cavity 508, which supports and fixes the two sealing plates 510. At the same time, it ensures that the two sealing plates 510 can be spaced apart along the thickness direction. The outer edge of the sealing plate 510 is sealed with the fixed bracket 509 to prevent water leakage or mixing, and to ensure that the electrolytic reaction areas in the two cavities are completely isolated.

[0083] According to some embodiments of the present invention, the sealing plate 510 is covered with a flexible sealing layer (not shown in the figure), and the outer edge of the sealing plate 510 is sealed to the fixed bracket 509 through the flexible sealing layer.

[0084] By covering the sealing plate 510 with a flexible sealing layer, the sealing plate 510 as a whole, including the outer edge of the sealing plate 510 and the mating position with the fixed bracket 509, can be sealed by the deformation of the flexible sealing layer, thereby effectively improving the sealing effect of the sealing plate 510.

[0085] It should be noted that in the prior art, the sealing plate 510 typically has a sealing layer attached to both end faces, leaving the outer edges of the sealing plate 510 exposed, resulting in poor sealing performance. In this invention, the sealing plate 510 is entirely covered with a flexible sealing layer, and the outer edges of the sealing plate 510 are covered with a flexible sealing layer, which improves the sealing performance at that location.

[0086] In practice, the body of the sealing plate 510 can be placed inside the mold cavity, and then the mold cavity can be filled with molten material that can form a flexible sealing layer.

[0087] See Figure 6 and Figure 7 As shown, according to some embodiments of the present invention, the fixed bracket 509 is provided with cathode plates 506 on both sides along the thickness direction.

[0088] By setting cathode plates 506 on both sides of the fixed bracket 509 along the thickness direction, the efficiency of the water electrolysis device 5 in generating weakly alkaline water can be improved by using the two cathode plates 506 when the water electrolysis device 5 is working.

[0089] Preferably, in this embodiment, the anode plate 505, cathode plate 506, sealing plate 510, and fixing bracket 509 are all arranged parallel to each other to improve the compactness of the water electrolysis device 5. Of course, in some embodiments, considering factors such as space layout, one of the components of the anode plate 505, cathode plate 506, sealing plate 510, and fixing bracket 509 may be arranged non-parallel to the other components, and there is no special limitation on this.

[0090] See Figure 9 As shown, according to some embodiments of the present invention, the fixed bracket 509 is provided with a slot 511 along the circumferential direction, and the outer edge of the sealing plate 510 is engaged in the slot 511.

[0091] By providing a circumferential groove 511 on the fixed bracket 509 and securing the outer edge of the sealing plate 510 within the groove 511, the stability of the sealing plate 510 during fixation can be improved. Furthermore, the groove 511 can provide a sufficiently large contact surface, allowing the flexible sealing layer covering the sealing plate 510 to fully contact and deform with the inner wall of the groove 511 to fill the gap at the connection point, thereby improving the sealing effect.

[0092] Specifically, in the initial state, the thickness of the sealing plate 510 (including the flexible sealing layer) is slightly greater than the thickness of the slot 511, so that after the sealing plate 510 is inserted into the slot 511, the flexible sealing layer can deform under the pressure to achieve a seal.

[0093] See Figures 6 to 9 As shown, according to some embodiments of the present invention, the fixed bracket 509 includes two bracket units 5091, which are arranged opposite to each other and detachably connected, and the anode plate 505 is snapped between the two bracket units 5091.

[0094] By configuring the fixed bracket 509 as two detachably connected bracket units 5091, and securing the anode plate 505 between the two bracket units 5091, the water electrolysis device 5 can be assembled and disassembled more conveniently. When it is necessary to clean, maintain, or replace the anode plate 505, the two bracket units 5091 can be disassembled and the anode plate 505 can be removed.

[0095] The two bracket units 5091 can be connected by a variety of detachable methods known in the prior art, such as snap-fit ​​threaded connectors, etc., without any special limitations.

[0096] The water purification equipment provided by this utility model is described below. The water purification equipment described below can be referred to in correspondence with the water purification system described above.

[0097] See Figure 10 and Figure 11As shown, the water purification device provided in this embodiment of the present invention includes: a second housing 19 and a water purification system, wherein at least a portion of the water purification system is disposed within the second housing 19.

[0098] The water purification equipment provided by this utility model, since it adopts the water purification system described in any of the above embodiments, also has at least three water output modes: pure water, weakly alkaline water and fresh mineral water, which can output ideal water quality according to user needs and meet the diverse drinking water needs of users.

[0099] See Figure 10 and Figure 11 As shown, according to some embodiments of the present invention, in the water purification equipment, an electrical control board 20 is provided inside the second housing 19, and an installation space is provided between the electrical control board 20 and the inner wall of the second housing 19, and the water electrolysis device 5 is provided in the installation space.

[0100] By placing the water electrolysis device 5 within the mounting space between the control board 20 and the inner wall of the second housing 19, the remaining space within the second housing 19 can be used to arrange the water electrolysis device 5 without increasing the housing volume or creating a separate cavity within the housing. Furthermore, the first housing 504 of the water electrolysis device 5 and the outer shell of the control board 20 can support each other, improving the stability of the water electrolysis device 5 and the control board 20 during operation and preventing shaking.

[0101] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A water purification system, characterized in that, include: Water inlet pipe; A filtration assembly, comprising a pre-filter and a reverse osmosis device, wherein both the pre-filter and the reverse osmosis device are located in the inlet pipe, and the reverse osmosis device is located downstream of the pre-filter. The first water outlet pipe is connected to the water inlet pipe located downstream of the reverse osmosis device; The second water outlet pipe is connected to the water inlet pipe at the position between the pre-filter and the reverse osmosis device. An electrolysis water device is used to electrolyze raw water to prepare alkaline electrolyzed water. The device is provided with an inlet and an alkaline water outlet. The inlet is connected to a second outlet pipe, and the alkaline water outlet is connected to the outlet end of the second outlet pipe. The third water outlet pipe is connected to the second water outlet pipe at a position upstream of the water electrolysis device.

2. The water purification system according to claim 1, characterized in that, The outlet end of the third water outlet pipe is connected to the second water outlet pipe located downstream of the water electrolysis device.

3. The water purification system according to claim 1, characterized in that, The filtration assembly also includes a post-filter element, which is disposed in the inlet pipe and located downstream of the reverse osmosis device. The first outlet pipe is connected to the inlet pipe at a position downstream of the post-filter element.

4. The water purification system according to claim 1, characterized in that, The inlet pipe is equipped with a first control valve, which is located between the pre-filter and the reverse osmosis device, and the second outlet pipe is connected to the inlet pipe upstream of the first control valve. A second control valve is installed on the first water outlet pipe; The second water outlet pipe is equipped with a third control valve, and the third control valve is located between the connection point between the third water outlet pipe and the second water outlet pipe and the water electrolysis device; The third water outlet pipe is equipped with a fourth control valve.

5. The water purification system according to claim 1, characterized in that, Also includes: The TDS detection device is located in the inlet pipe and between the pre-filter and the reverse osmosis device. The TDS detection device is communicatively connected to the water electrolysis device to adjust the current of the water electrolysis device.

6. The water purification system according to any one of claims 1 to 5, characterized in that, The water electrolysis device includes: A first housing has an inlet, an alkaline water outlet, and an acidic water outlet formed thereon. An anode cavity and a cathode cavity are formed inside the first housing. The inlet is connected to both the anode cavity and the cathode cavity. The anode cavity is connected to the acidic water outlet, and the cathode cavity is connected to the alkaline water outlet. Anode plate, the anode plate being located within the anode cavity; A cathode plate, which is located within the cathode cavity.

7. The water purification system according to claim 6, characterized in that, The water inlet, the alkaline water outlet, and the acidic water outlet are located on the same side of the first housing.

8. The water purification system according to claim 6, characterized in that, The water electrolysis device further includes: A fixed bracket is located within the cathode cavity; Two sealing plates are disposed within the fixed bracket, and the two sealing plates are spaced apart along the thickness direction of the fixed bracket. The outer edge of the sealing plate is sealed to the fixed bracket, so that the anode cavity is formed by the two sealing plates and the fixed bracket together.

9. The water purification system according to claim 8, characterized in that, The sealing plate is covered with a flexible sealing layer, and the outer edge of the sealing plate is sealed to the fixed bracket through the flexible sealing layer.

10. The water purification system according to claim 8, characterized in that, The cathode plate is provided on both sides of the fixed bracket along the thickness direction.

11. The water purification system according to claim 8, characterized in that, The fixed bracket is provided with a slot along the circumference, and the outer edge of the sealing plate is engaged in the slot.

12. The water purification system according to claim 8, characterized in that, The fixed bracket includes two bracket units, which are arranged opposite each other and detachably connected, and the anode plate is snapped between the two bracket units.

13. A water purification device, characterized in that, include: Second shell; The water purification system as claimed in any one of claims 1 to 12, wherein at least a portion of the water purification system is disposed within the second housing.

14. The water purification equipment according to claim 13, characterized in that, The second housing contains an electrical control board, and there is an installation space between the electrical control board and the inner wall of the second housing. The water electrolysis device is located in the installation space.

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