Drinking water treatment device

Abstract

The drinking water treatment device comprises a powder adding module, the powder adding module comprises a powder storage box and a powder adding shaft, a discharging opening is formed in the bottom of the powder storage box, the powder adding shaft can be rotatably connected to the discharging opening, and the discharging opening is blocked by the powder adding shaft; one or more accommodating grooves are formed in the peripheral wall of the powder adding shaft; the mixing water tank is provided with a mixing water tank liquid inlet, a mixing water tank liquid outlet and a powder feeding port, when the containing groove faces the interior of the powder storage box, powder in the powder storage box can enter the containing groove, and when the containing groove faces the interior of the mixing water tank, the powder in the containing groove can enter the mixing water tank; the electrolysis module is provided with an electrolysis module liquid inlet, an acidic water liquid outlet and an alkaline water liquid outlet, the electrolysis module liquid inlet is connected to the mixed water tank liquid outlet, and the electrolysis module can respectively obtain an acidic aqueous solution and an alkaline aqueous solution at two electrodes of the electrolyzed water.

Description

Technical Field

[0001] The present application relates to a drinking water treatment device. Background Art

[0002] Water electrolysis technology can be used to obtain alkaline aqueous solutions, which are beneficial to human health. However, electrolysis can only be achieved when the water has a certain electrical conductivity.

[0003] The existing RO reverse osmosis filtration technology can filter out unhealthy substances in water, such as calcium, magnesium, bacteria, organic matter, inorganic matter, metal ions and radioactive substances, resulting in the conductivity of RO filtered water being too low, which is not conducive to electrolysis and makes it difficult to combine RO reverse osmosis water purifiers with electrolysis water technology.

[0004] One possible water purifier includes a mineralized filter element, which is either integrated and sintered within an activated carbon filter element or formed into granules. Minerals are precipitated by soaking the filter in water. However, as soaking time increases, the amount of precipitated minerals increases significantly, making it difficult to quantitatively add the required minerals. This leads to significant fluctuations in conductivity, which in turn affects electrolysis stability. Summary of the Invention

[0005] The present application aims to propose a drinking water treatment device to solve the problem that the conductivity of raw water for electrolysis is low and is not conducive to electrolysis.

[0006] The embodiment of the present application provides a drinking water treatment device, which includes:

[0007] A powder adding module, the powder adding module comprising a powder storage box and a powder adding shaft, the powder storage box having a discharge port at the bottom, the powder adding shaft being rotatably connected to the discharge port, the powder adding shaft blocking the discharge port, and the peripheral wall of the powder adding shaft being provided with one or more receiving grooves;

[0008] A mixing water tank is provided with a mixing water tank liquid inlet, a mixing water tank liquid outlet and a powder feed port,

[0009] When the receiving groove faces the interior of the powder storage box, the soluble powder in the powder storage box can enter the receiving groove; when the receiving groove faces the interior of the mixing water tank, the soluble powder in the receiving groove can enter the mixing water tank; and

[0010] The electrolysis module has an electrolysis module liquid inlet, an acidic water liquid outlet and an alkaline water liquid outlet. The electrolysis module liquid inlet is connected to the mixing water tank liquid outlet. The electrolysis module can obtain acidic aqueous solution and alkaline aqueous solution at the two poles of water electrolysis.

[0011] In at least one possible embodiment, the drinking water treatment device further includes a reverse osmosis filtration module, wherein the reverse osmosis filtration module is provided with a filtration liquid inlet, a filtration liquid outlet, and a filtration wastewater outlet.

[0012] The water is filtered by the reverse osmosis filtration module and discharged from the filtered liquid outlet as the water source of the drinking water treatment device.

[0013] In at least one possible embodiment, the drinking water treatment device also includes a water mixer, which includes a main liquid inlet, a secondary liquid inlet and a mixer outlet, the secondary liquid inlet is connected to the mixing water tank outlet, and the mixer outlet is connected to the electrolysis module inlet.

[0014] In at least one possible embodiment, the water mixer is a venturi ejector, the secondary liquid inlet is located at a diameter-reduced position of the venturi ejector, and the inner diameter of the secondary liquid inlet is smaller than the inner diameter of the main liquid inlet.

[0015] A one-way valve is provided between the auxiliary liquid inlet and the liquid outlet of the mixing water tank.

[0016] In at least one possible embodiment, the drinking water treatment device includes a water mixer inlet channel and a mixing water tank inlet channel.

[0017] The two ends of the water mixer inlet channel are respectively connected to the filtered liquid outlet and the main liquid inlet. The water mixer inlet channel is provided with a water mixer inlet valve capable of controlling the on-off of the water mixer inlet channel.

[0018] The two ends of the mixing water tank liquid inlet channel are respectively connected to the filtered liquid outlet and the mixing water tank liquid inlet, and the mixing water tank liquid inlet channel is provided with a mixing water tank liquid inlet valve capable of controlling the on-off of the mixing water tank liquid inlet channel.

[0019] In at least one possible embodiment, the powder adding module further includes a motor and a transmission mechanism, and the motor is connected to the powder adding shaft via the transmission mechanism, so that the motor can drive the powder adding shaft to rotate.

[0020] In at least one possible embodiment, the peripheral wall of the powder adding shaft and the discharge port of the powder storage box are in close contact, so that the soluble powder in the powder storage box cannot pass between the discharge port and the peripheral wall portion of the powder adding shaft except the receiving groove.

[0021] In at least one possible embodiment, the drinking water treatment device further includes a raw water tank, and the raw water tank includes a raw water tank liquid inlet and a raw water tank liquid outlet.

[0022] The filtered liquid inlet is connected to the liquid outlet of the raw water tank, and the filtered wastewater outlet and / or the acidic water outlet are connected to the liquid inlet of the raw water tank, so that the wastewater filtered by the reverse osmosis filtration module and / or the acidic aqueous solution generated by electrolysis enter the raw water tank for reuse.

[0023] In at least one possible embodiment, the mixing water tank is provided with a water level sensor and / or a conductivity sensor.

[0024] In at least one possible embodiment, the drinking water treatment device further includes a pre-filter element, which is disposed on an upstream side of the reverse osmosis filtration module.

[0025] In at least one possible embodiment, the drinking water treatment device further includes a post-membrane filter element, and the post-membrane filter element is disposed on a downstream side of the reverse osmosis filtration module.

[0026] In at least one possible embodiment, the powder adding module further includes a filter element cavity, and the post-membrane filter element is disposed in the filter element cavity.

[0027] In at least one possible embodiment, the filter element cavity is provided with a water inlet, a filter element cavity water outlet and a mixed water outlet, the water inlet is connected to the filtered liquid outlet, and the mixed water outlet is connected to the mixed water tank inlet.

[0028] In at least one possible embodiment, the powder adding module further includes a powder receiving chamber, which is disposed below the powder storage box.

[0029] The powder receiving chamber is provided with a powder receiving container, and the powder receiving container is provided with a powder receiving cavity opening upward, and the powder receiving cavity is located below the powder adding shaft. The powder receiving container is provided with a liquid inlet channel, one end of the liquid inlet channel is connected to the filter element cavity, and the other end of the liquid inlet channel is connected to the powder receiving cavity, so that the liquid in the filter element cavity can pass into the powder receiving cavity.

[0030] In at least one possible embodiment, the powder receiving container is capable of moving in an up-down direction within the powder receiving chamber.

[0031] The lower part of the powder receiving container is located inside the filter element cavity. The liquid in the filter element cavity can exert buoyancy on the powder receiving container, thereby causing the powder receiving container to move upward. The powder receiving container is connected to a receiving container driving unit, and the receiving container driving unit can exert a downward force on the powder receiving container, causing the powder receiving container to overcome the buoyancy and move downward.

[0032] In at least one possible embodiment, the powder adding module further includes a dry-wet separation chamber, which is disposed between the powder storage box and the powder receiving chamber.

[0033] In at least one possible embodiment, the drinking water treatment device further includes a heating module, and the heating module is disposed at a downstream side of the mixer outlet or the alkaline water outlet.

[0034] In at least one possible embodiment, the soluble powder can increase the electrical conductivity of water when added to water.

[0035] In at least one possible embodiment, the soluble powder includes one or more of mineral powder, electrolyte beverage solid powder and food additive.

[0036] By adopting the above technical solution, soluble powder can be quantitatively added to the mixing water tank through the powder adding module, so that the soluble powder can be accurately added to the water, thereby accurately controlling the conductivity of the electrolysis raw water and thus improving the stability of the electrolysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A schematic diagram of the connection lines of a drinking water treatment device according to the first embodiment of the present application is shown.

[0038] Figure 2 A partial structural schematic diagram of a drinking water treatment device according to a first embodiment of the present application is shown.

[0039] Figure 3 Shown Figure 2 sectional view of .

[0040] Figure 4 A schematic structural diagram of a motor and a transmission mechanism of a drinking water treatment device according to a first embodiment of the present application is shown.

[0041] Figure 5 A schematic structural diagram shows a state in which the receiving groove of the powder adding shaft of the drinking water treatment device according to the first embodiment of the present application faces the powder storage box.

[0042] Figure 6 A schematic structural diagram shows a state in which the receiving groove of the powder adding shaft of the drinking water treatment device according to the first embodiment of the present application faces the mixing water tank.

[0043] Figure 7 The powder adding shaft receiving groove of the drinking water treatment device according to the first embodiment of the present application is shown in FIG. Figure 5 and Figure 6 Schematic diagram of the structure of the state between.

[0044] Figure 8 A schematic diagram of the connection lines of a drinking water treatment device according to a second embodiment of the present application is shown.

[0045] Figure 9 A schematic diagram of the connection lines of a drinking water treatment device according to a third embodiment of the present application is shown.

[0046] Figure 10 A schematic diagram of the connection lines of a drinking water treatment device according to a fourth embodiment of the present application is shown.

[0047] Figures 11 to 14 A schematic diagram showing different water levels of a drinking water treatment device according to a fifth embodiment of the present application in a first working mode.

[0048] Figure 15 A schematic structural diagram of a drinking water treatment device in a second working mode according to a fifth embodiment of the present application is shown.

[0049] Description of Reference Numerals

[0050] 1Powder adding module

[0051] 11 powder storage box 111 discharge port

[0052] 12 Powder adding shaft 121 Receiving groove

[0053] 13 Motor

[0054] 14 Transmission Mechanism

[0055] 15 Dry and wet separation chamber

[0056] 16 Powder receiving room

[0057] 17 filter chamber 171 water inlet 172 filter chamber water outlet 173 mixed water outlet 174 sealing gasket

[0058] 18 Powder receiving container 181 Powder receiving chamber 182 Liquid inlet channel 183 Floating block

[0059] 2 Mixing water tank 21 Mixing water tank liquid inlet 22 Mixing water tank liquid outlet 23 Powder feed port

[0060] 3 Electrolysis module 31 Electrolysis module liquid inlet 32 ​​Acidic water liquid outlet 33 Alkaline water liquid outlet

[0061] 4 Venturi ejector 41 main liquid inlet 42 mixer liquid outlet 43 auxiliary liquid inlet

[0062] 5 Reverse osmosis filtration module 51 filtration liquid inlet 52 filtration liquid outlet 53 filtration wastewater outlet

[0063] 6 Raw water tank 61 Raw water tank liquid inlet 62 Raw water tank liquid outlet

[0064] 7 Pre-filter element

[0065] 8 Post-membrane filter element

[0066] 9 Heating module

[0067] S1 water inlet valve S2 water mixer inlet valve S3 mixing tank inlet valve S4 alkaline water valve S5 powder filter water valve S6 waste water valve S7 acidic water valve DETAILED DESCRIPTION

[0068] In order to more clearly illustrate the above-mentioned purposes, features and advantages of the present application, this section describes in detail the specific embodiments of the present application in conjunction with the accompanying drawings. In addition to the various embodiments described in this section, the present application can also be implemented in other different ways. Without violating the spirit of the present application, those skilled in the art can make corresponding improvements, deformations and substitutions. Therefore, the present application is not limited to the specific embodiments disclosed in this section. The scope of protection of this application shall be based on the claims.

[0069] (First embodiment)

[0070] like Figures 1 to 7 As shown, the first embodiment of the present application proposes a drinking water treatment device, which includes a powder adding module 1 , a mixing water tank 2 , an electrolysis module 3 , a water mixer and a reverse osmosis filtration module 5 .

[0071] The reverse osmosis filtration module 5 can perform RO reverse osmosis filtration on tap water. The reverse osmosis filtration module 5 is provided with a filtration liquid inlet 51 , a filtration liquid outlet 52 and a filtration wastewater outlet 53 .

[0072] The filtered liquid inlet 51 can be connected to the water inlet valve S1. The tap water entering the reverse osmosis filter module 5 can be filtered, and the filtered RO filtered water can flow out through the filtered liquid outlet 52. The wastewater produced by the filtration can be discharged through the filtered wastewater outlet 53. The filtered wastewater outlet 53 can be connected to a wastewater pipe, and the wastewater pipe is provided with a wastewater valve S6.

[0073] After being filtered by the reverse osmosis filtration module 5 , the water discharged from the filtered liquid outlet 52 can be used as a water source for subsequent treatment by a drinking water treatment device.

[0074] Optionally, a booster pump may be provided between the water inlet valve S1 and the reverse osmosis filtration module 5 .

[0075] The powder addition module 1 can be connected to the mixing water tank 2. The powder addition module 1 can be located above the mixing water tank 2. The powder addition module 1 can quantitatively add soluble powder (including granules, hereinafter referred to as powder) to the mixing water tank 2. The soluble powder added to the reclaimed water can increase the conductivity of the water. For example, the soluble powder can be one or more of mineral powder, electrolyte beverage solid powder, and food additive. After the soluble powder dissolves in water (including readily soluble in water, soluble in water, and slightly soluble in water), it can increase the ion concentration in the water, thereby improving the conductivity and improving the stability of the electrolysis.

[0076] Mineral powders may include iron lactate, sodium citrate, zinc gluconate, magnesium citrate, magnesium carbonate, calcium lactate, and the like.

[0077] The electrolyte beverage solid powder may include one or more of white sugar, sodium citrate, vitamin C, potassium chloride, calcium lactate, magnesium carbonate, anhydrous glucose, citric acid, edible salt and edible flavoring.

[0078] Food additives can be used to improve taste, and food additives may include citric acid, potassium dihydrogen phosphate, fruit acid, and the like.

[0079] The mixing water tank 2 is provided with a mixing water tank liquid inlet 21, a mixing water tank liquid outlet 22, and a powder feed inlet 23. The mixing water tank liquid inlet 21 and the powder feed inlet 23 can be respectively arranged at the upper portion of the mixing water tank 2, and the mixing water tank liquid outlet 22 can be arranged at the lower portion of the mixing water tank 2. The mixing water tank liquid inlet 21 can be connected to the filtered liquid outlet 52, the mixing water tank liquid outlet 22 can be connected to the auxiliary liquid inlet 43 of the venturi ejector 4, and the powder feed inlet 23 can be connected to the powder addition module 1.

[0080] The powder can be dissolved or partially dissolved in the mixing water tank 2. The mixing water tank 2 contains a solution mixed with the powder or a suspension containing the powder, which is referred to as a powder mixture below for convenience.

[0081] The water mixer can mix the powder mixture with filtered water to dilute the powder mixture to a preset concentration.

[0082] Optionally, the water mixer may be a venturi ejector 4, which includes a main liquid inlet 41, a mixer liquid outlet 42, and a secondary liquid inlet 43. The main liquid inlet 41 and the mixer liquid outlet 42 of the venturi ejector 4 may both be formed into a tapered cone.

[0083] The secondary liquid inlet 43 can be located at the diameter reduction position of the venturi ejector 4. In the process of water flowing from the main liquid inlet 41 into the venturi ejector 4 and out of the mixer liquid outlet 42, the powder mixture flowing out of the mixing water tank outlet 22 can be sucked into the venturi ejector 4 from the secondary liquid inlet 43, so that the powder mixture is mixed and diluted with water.

[0084] Optionally, a one-way valve may be provided between the secondary liquid inlet 43 and the mixing water tank liquid outlet 22 to prevent the liquid in the venturi ejector 4 from flowing back into the mixing water tank 2 .

[0085] Optionally, the inner diameter of the secondary liquid inlet 43 can be smaller than the inner diameter of the primary liquid inlet 41, thereby making the flow rate of the secondary liquid inlet 43 smaller than the flow rate of the primary liquid inlet 41. The flow rate ratio of the primary liquid inlet 41 to the flow rate of the secondary liquid inlet 43 can be greater than or equal to 10:1. The amount of powder mixture used is small, and the amount of powder mixture required to be accommodated by the mixing water tank 2 is small. The size of the mixing water tank 2 can be reduced as much as possible, saving space and facilitating the miniaturization of the drinking water treatment device.

[0086] like Figure 1 As shown, the drinking water treatment device includes a water mixer liquid inlet channel L1 and a mixing water tank liquid inlet channel L2.

[0087] Both ends of the water mixer inlet channel L1 are connected to the filtered liquid outlet 52 and the main liquid inlet 41 respectively. The water mixer inlet channel L1 may be provided with a water mixer inlet valve S2 capable of controlling the on-off of the water mixer inlet channel L1.

[0088] The two ends of the mixing tank inlet channel L2 are respectively connected to the filtered liquid outlet 52 and the mixing tank inlet 21. The mixing tank inlet channel L2 can be provided with a mixing tank inlet valve S3 that can control the opening and closing of the mixing tank inlet channel L2. By controlling the opening and closing of the water mixer inlet valve S2 and the mixing tank inlet valve S3, the liquid outlet path of the filtered liquid outlet 52 can be selected.

[0089] like Figures 2 to 7 As shown, the powder adding module 1 includes a powder storage box 11 , a powder adding shaft 12 , a motor 13 and a transmission mechanism 14 .

[0090] The powder storage box 11 can be a container having a cavity, and powder is stored in the powder storage box 11. A discharge port 111 is provided at the bottom of the powder storage box 11. The mixing water tank 2 can be provided below the powder storage box 11. The discharge port 111 is connected to the powder feed port 23. The powder addition shaft 12 is rotatably connected to the discharge port 111. The powder addition shaft 12 can be provided inside the discharge port 111. The powder addition shaft 12 can block the discharge port 111, more specifically, can block the opening of the discharge port 111 connected to the powder feed port 23. The peripheral wall of the powder addition shaft 12 is provided with one or more receiving grooves 121.

[0091] The peripheral wall of the powder adding shaft 12 and the inner wall of the discharge port 111 of the powder storage box 11 can be tightly attached, so that the powder in the powder storage box 11 cannot pass between the discharge port 111 and the peripheral wall part of the powder adding shaft 12 except the accommodating groove 121.

[0092] The motor 13 is connected to the powder adding shaft 12 via a transmission mechanism 14, so that the motor 13 can drive the powder adding shaft 12 to rotate. The transmission mechanism 14 may include a gear transmission mechanism.

[0093] like Figure 4 As shown, the transmission mechanism 14 may include a driving gear 141 and a driven gear 142 . The driving gear 141 may be connected to the output shaft of the motor 13 , and the driven gear 142 may be connected to the powder adding shaft 12 . The powder adding shaft 12 may be driven to rotate by the motor 13 .

[0094] When the receiving groove 121 rotates toward the interior of the powder storage box 11, the powder in the powder storage box 11 can enter the receiving groove 121, which can accommodate a certain volume of powder. When the receiving groove 121 rotates toward the interior of the mixing water tank 2, more specifically, toward the powder feed port 23, a certain volume of powder in the receiving groove 121 can enter the mixing water tank 2. This allows for quantitative addition of powder to the mixing water tank 2. The amount of powder added to the mixing water tank 2 can be adjusted by controlling the number of rotations of the powder addition shaft 12.

[0095] The electrolysis module 3 has an electrolysis module inlet 31, an acidic water outlet 32, and an alkaline water outlet 33. The electrolysis module inlet 31 is connected to the mixing tank outlet 22. The electrolysis module 3 processes the diluted powder mixture (electrolysis raw water, i.e., the water to be electrolyzed). The electrolysis module 3 can produce an acidic aqueous solution and an alkaline aqueous solution at the two poles of the electrolyzed water, respectively. The acidic aqueous solution can be discharged from the acidic water outlet 32, and the alkaline aqueous solution can be discharged from the alkaline water outlet 33.

[0096] The pH value of the alkaline aqueous solution can be controlled by the working current of the electrolysis module 3, thereby outputting alkaline water with the pH value required by the user to meet the different needs of the user.

[0097] The acidic water outlet 32 ​​may be connected to an acidic water pipe, which is connected to an acidic water valve S7. The acidic water pipe and the waste water pipe may be joined together.

[0098] Optionally, mixing tank 2 may be equipped with a water level sensor and / or a conductivity sensor. The water level sensor is used to monitor the water level within mixing tank 2. If the water level is too low, powder and RO filtered water can be replenished via a feedback control system. The conductivity sensor can also monitor the conductivity within mixing tank 2. If the conductivity is too low, electrolysis module 3 may not function properly and complete electrolysis.

[0099] The drinking water filter device of the present invention may be a direct-connected drinking water filter device that is directly connected to a tap water pipeline.

[0100] The alkaline water valve S4 may be disposed between the mixer liquid outlet 42 and the electrolysis module liquid inlet 31 . By opening the alkaline water valve S4 , the RO filtered water may flow into the electrolysis module 3 .

[0101] The powder filtered water valve S5 may be provided on a pipe connected to the liquid outlet 42 of the mixer. By opening the powder filtered water valve S5 , RO filtered water with powder added thereto may be taken.

[0102] The working process of the drinking water filtration device is described below.

[0103] When it is necessary to add solid powder to drinking water in a quantitative manner, the motor 13 can be controlled according to the user's selection to drive the powder adding shaft 12 to rotate a corresponding number of circles. Each rotation of the powder adding shaft 12 can add a predetermined volume of powder to the mixing water tank 2. The water inlet valve S1, the mixing water tank liquid inlet valve S3 and the wastewater valve S6 are opened, and the other valves are closed. After the powder is added to the mixing water tank 2, the RO filtered water produced by the reverse osmosis filtration module 5 can enter the mixing water tank 2 through the mixing water tank liquid inlet channel L2. By controlling the working time of the booster pump, the amount of water entering the mixing water tank 2 can be controlled. The RO filtered water and the powder can be evenly mixed in the mixing water tank 2 to form a powder mixture, and the powder mixture is stored in the mixing water tank 2.

[0104] When a user accesses powdered RO filtered water (without passing through the electrolysis module 3), the water inlet valve S1, the water mixer inlet valve S2, the powder filtered water valve S5, and the wastewater valve S6 are opened, while the other valves are closed. As the RO filtered water enters the main inlet 41 of the venturi ejector 4 and exits the mixer outlet 42, a local negative pressure is created near the secondary inlet 41 of the venturi ejector 4, drawing the powder mixture from the mixing tank 2 and diluting it with the RO filtered water. The powdered RO filtered water can be accessed by opening the powder filtered water valve S5.

[0105] When a user uses alkaline water, the water inlet valve S1, the water mixer inlet valve S2, the alkaline water valve S4, the wastewater valve S6, and the acidic water valve S7 are opened, and the other valves are closed. When RO filtered water enters the main liquid inlet 41 of the venturi ejector 4 and flows out of the mixer outlet 42, a local negative pressure is formed near the secondary liquid inlet 41 of the venturi ejector 4, which can suck out the powder mixture in the mixing water tank 2 and dilute the powder mixture with RO filtered water. After dilution, it is passed to the electrolysis module 3. The two poles of the electrolysis module 3 respectively produce an alkaline aqueous solution and an acidic aqueous solution. The alkaline aqueous solution can be taken by opening the alkaline water valve S4. Opening the acidic water valve S7 can discharge the acidic aqueous solution produced by electrolysis in the electrolysis module 3.

[0106] The drinking water treatment device of this embodiment has the following beneficial effects.

[0107] (1) The powder adding module 1 can quantitatively add powder such as mineral powder to the mixing water tank, which can accurately control the conductivity of the RO filtered water, thereby improving the stability of the electrolysis.

[0108] (2) After being processed by the electrolysis module, the drinking water treatment device can supply alkaline water to meet the user's requirements for the acidity and alkalinity of drinking water.

[0109] (3) The inner diameter of the secondary liquid inlet 43 is smaller than the inner diameter of the main liquid inlet 41, so that the flow rate of the secondary liquid inlet 43 is smaller than the flow rate of the main liquid inlet 41, so that the powder mixed liquid that the mixing water tank 2 needs to accommodate is smaller, and the mixing water tank 2 can be as small as possible to save space, which is conducive to the miniaturization of the drinking water treatment device.

[0110] (Second embodiment)

[0111] The drinking water treatment device of the second embodiment of the present application is similar in overall structure to the drinking water treatment device of the first embodiment of the present application, with the main difference being the pre-filter element 7 and the post-membrane filter element 8. The same reference numerals are used to indicate the same or similar components in the second embodiment as in the first embodiment.

[0112] like Figure 8 As shown, the second embodiment of the present application proposes a drinking water treatment device, which includes a powder adding module 1, a mixing water tank 2, an electrolysis module 3, a water mixer, a reverse osmosis filtration module 5, a pre-filter element 7 and a membrane post-filter element 8.

[0113] The pre-filter cartridge 7 can be disposed upstream of the reverse osmosis filter module 5. Before water enters the reverse osmosis filter module 5, it is first filtered by the pre-filter cartridge 7 and then passes through the reverse osmosis filter module 5. This can extend the service life of the reverse osmosis filter module 5. Specifically, the pre-filter cartridge 7 can be disposed between the water inlet valve S1 and the booster pump.

[0114] The post-membrane filter element 8 may include a carbon rod filter element. The post-membrane filter element 8 may be disposed downstream of the reverse osmosis filtration module 5. The RO filtered water may have a better taste after being filtered through the carbon rod filter element. Specifically, the post-membrane filter element 8 may be disposed downstream of the powder filtered water valve S5.

[0115] (Third embodiment)

[0116] The drinking water treatment device of the third embodiment of the present application has a similar overall structure to the drinking water treatment device of the first embodiment of the present application, and the main difference lies in the raw water tank 6. The same reference numerals are used to indicate the same or similar components in the third embodiment as in the first embodiment.

[0117] like Figure 9As shown, the third embodiment of the present application proposes a drinking water treatment device, which includes a powder adding module 1, a mixing water tank 2, an electrolysis module 3, a water mixer, a reverse osmosis filtration module 5 and a raw water tank 6.

[0118] The raw water tank 6 can hold tap water. The raw water tank 6 is separated from the tap water pipe. This drinking water treatment device can be referred to as a source-separated water purification device. The raw water tank 6 includes a raw water tank inlet 61 and a raw water tank outlet 62. The filtered liquid inlet 51 can be connected to the raw water tank outlet 62, allowing the reverse osmosis filtration module 5 to process the water stored in the raw water tank 6. The filtered wastewater inlet 53 and / or the acidic water outlet 32 ​​are connected to the raw water tank inlet 61, allowing the wastewater filtered by the reverse osmosis filtration module 5 and / or the acidic aqueous solution generated by electrolysis to enter the raw water tank 6 for reuse, thereby reducing the discharge of wastewater and / or acidic water.

[0119] Of course, tap water can be added to the raw water tank 6 through the raw water tank liquid inlet 61 or other interfaces.

[0120] (Fourth embodiment)

[0121] The drinking water treatment device of the fourth embodiment of the present application is similar in overall structure to the drinking water treatment device of the third embodiment of the present application, and the main difference lies in the heating module 9. The same reference numerals are used to represent the same or similar components in the fourth embodiment as in the third embodiment.

[0122] like Figure 10 As shown, the fourth embodiment of the present application proposes a drinking water treatment device, which includes a powder adding module 1, a mixing water tank 2, an electrolysis module 3, a water mixer, a reverse osmosis filtration module 5, a raw water tank 6 and a heating module 9.

[0123] The heating module 9 can heat the water taken by the user as needed. The heating module 9 can be arranged downstream of the mixer outlet 42 and / or the alkaline water outlet 33, so as to heat the water when the user takes RO filtered water with added powder (without passing through the electrolysis module 3) or when taking alkaline water.

[0124] For example, the alkaline water outlet 33 can be connected to an alkaline water tank 331, which can be connected to an alkaline water pump. The powder filtered water valve S5 can be connected to a filtered water tank 421, which can be connected to a filtered water pump. The downstream of the alkaline water pump and the filtered water pump can converge into a single outlet, with the type of water output controlled by the on / off switching of the alkaline water valve S4 and the powder filtered water valve S5. That is, the alkaline water valve S4 is connected to discharge alkaline water, while the powder filtered water valve S5 is connected to discharge RO filtered water with added powder (not passing through the electrolysis module 3). The heating module 9 can be connected downstream of the alkaline water pump and the filtered water pump.

[0125] (Fifth embodiment)

[0126] The drinking water treatment device of the fifth embodiment of the present application is similar in overall structure to the drinking water treatment device of the first embodiment of the present application, with the main differences being the powder addition module 1 and the post-membrane filter element 8. The same reference numerals are used to indicate the same or similar components in the fifth embodiment as in the first embodiment.

[0127] like Figures 11 to 15 、 Figure 1 As shown, the fifth embodiment of the present application proposes a drinking water treatment device, which includes a powder adding module 1, a mixing water tank 2, an electrolysis module 3, a water mixer, a reverse osmosis filtration module 5 and a post-membrane filter element 8.

[0128] The powder adding module 1 may further include a dry-wet separation chamber 15 , a powder receiving chamber 16 , a filter element cavity 17 and a powder receiving container 18 .

[0129] The powder receiving chamber 16 may be disposed below the powder storage box 11 . The powder receiving chamber 16 is provided with a powder receiving container 18 . The powder receiving container 18 is movable in an up-down direction within the powder receiving chamber 16 .

[0130] The filter cartridge cavity 17 can be disposed below the powder receiving chamber 16, and the post-membrane filter cartridge 8 can be disposed within the filter cartridge cavity 17. This allows the powder storage box 11 and the post-membrane filter cartridge 8 to be integrated into the powder adding module 1, making it convenient to add powder and replace the filter cartridge. The post-membrane filter cartridge 8 can include activated carbon, which can absorb and filter to remove odors from the water, improving the taste of the water.

[0131] The filter element cavity 17 is provided with a water inlet 171, a filter element cavity water outlet 172 and a mixed water outlet 173, and the water inlet 171, the filter element cavity water outlet 172 and the mixed water outlet 173 can all be provided at the bottom of the filter element cavity 17. The water inlet 171 can be connected to the filtered liquid outlet 52, and the mixed water outlet 173 can be connected to the mixed water tank liquid inlet 21.

[0132] Optionally, the dry-wet separation chamber 15 can be arranged between the powder storage box 11 and the powder receiving chamber 16. The dry-wet separation chamber 15 can serve as a buffer space for the liquid to prevent the liquid from contacting the powder adding shaft 12 and prevent the powder in the powder storage box 11 from getting damp.

[0133] The powder receiving container 18 is inserted into the partition wall between the dry-wet separation chamber 15 and the powder receiving chamber 16. The partition wall between the dry-wet separation chamber 15 and the powder receiving chamber 16 can be provided with a sealing ring, which surrounds the powder receiving container 18 and prevents liquid from entering the dry-wet separation chamber 15.

[0134] The bottom of the powder receiving container 18 may be provided with a float 183, which provides the powder receiving container 18 with a relatively large buoyancy. When not affected by external forces, the buoyancy of the float 183 allows one end of the liquid inlet channel 182 (described below) to remain above the liquid level in the filter element chamber 17.

[0135] The lower portion of the powder receiving container 18 is located within the filter cartridge cavity 17. The liquid within the filter cartridge cavity 17 exerts a buoyant force on the powder receiving container 18, causing it to move upward. The powder receiving container 18 is connected to a receiving container drive unit that applies a downward force to the powder receiving container 18, causing it to overcome the buoyancy and move downward. The receiving container drive unit may include a motor and a cam. The motor drives the cam to rotate, causing the cam to exert a downward force on the powder receiving container 18.

[0136] The powder receiving container 18 is provided with an upwardly opening powder receiving chamber 181, located below the powder adding shaft 12. The powder receiving container 18 may be provided with a liquid inlet channel 182, one end of which is connected to the filter cartridge chamber 17, and the other end of which is connected to the powder receiving chamber 181. When the liquid level in the filter cartridge chamber 17 exceeds one end of the liquid inlet channel 182, the liquid in the filter cartridge chamber 17 can flow into the powder receiving chamber 181. By mixing the powder and water in the vertically movable powder receiving container 18, the dry and wet separation of the powder and liquid can be easily maintained.

[0137] Optionally, a sealing gasket 174 may be provided on the top of the inner wall of the filter element cavity 17, and the sealing gasket 174 corresponds to one end of the liquid inlet channel 182. When the powder receiving container 18 moves upward, one end of the liquid inlet channel 182 may abut against the sealing gasket 174, thereby preventing the RO filtered water from entering the liquid inlet channel 182.

[0138] The powder adding module 1 of the fifth embodiment can have two working modes.

[0139] (First working mode)

[0140] In the first working mode, powder may be added to the RO filtered water, and the water is filtered through the post-membrane filter element 8 .

[0141] Powder can be added from the powder storage box to the powder receiving chamber 181 via the powder adding shaft 12. The receiving chamber drive unit lowers the powder receiving chamber 18, exposing one end of the liquid inlet channel 182. RO filtered water from the filter cartridge chamber 17 is then introduced into the powder receiving chamber 181 through the liquid inlet channel 182. Water flow into the filter cartridge chamber 17 is then stopped. The RO filtered water in the filter cartridge chamber 17 then passes through the post-filtration membrane filter cartridge 8 for post-filtration. When mixed water is drawn off, it is discharged through the mixed water outlet 173. The water level in the powder receiving chamber 181 decreases as the water level outside the powder receiving chamber 181 decreases. Figures 11 to 14 Schematic diagram showing the gradual decrease of the water level in a drinking water treatment plant.

[0142] (Second working mode)

[0143] In the second working mode, only the post-membrane filter element 8 is in effect, and no powder is added to the RO filtered water.

[0144] Reference Figure 15 RO filtered water enters the filter element cavity 17 from the water inlet 171, and the powder receiving container 18 remains raised under the action of buoyancy, so that one end of the liquid inlet channel 182 rests on the top of the inner wall of the filter element cavity 17. The filter element cavity 17 can form a closed space, and the RO filtered water can be post-filtered through the membrane post-filter element 8, and the filtered water can flow out from the filter element cavity water outlet 172.

[0145] It should be understood that at least some aspects or features of the above-mentioned embodiments, examples or examples may be appropriately combined.

[0146] The present application is not limited to the above-mentioned embodiments, and those skilled in the art can make various modifications to the above-mentioned embodiments under the guidance of the present application without departing from the scope of the present application.

[0147] (1) The water mixer of the present application is not limited to a venturi ejector. In other possible embodiments, the water mixer may include a mixing container, into which filtered water and the powder mixture are introduced for mixing to dilute the powder mixture.

[0148] (2) In the above embodiment, the powder adding shaft 12 can be set inside the discharge port 111, but the present application is not limited to this. In other possible embodiments, the powder adding shaft can also be set inside the mixing water tank, so that the powder adding shaft can also block the discharge port of the powder storage box.

[0149] For example, in the fifth embodiment, the powder adding shaft 12 may be provided in the dry-wet separation chamber 15 .

[0150] (3) In the above embodiment, the transmission mechanism 14 is a gear transmission mechanism, but the present application is not limited thereto. In other possible embodiments, the transmission mechanism may be a pulley transmission mechanism. In some cases, the transmission mechanism may be omitted.

[0151] (4) In the above embodiment, a one-way valve is provided between the auxiliary liquid inlet 43 and the liquid outlet 22 of the mixing water tank, but the present application is not limited thereto. A one-way valve may also be provided in other pipelines as needed, for example, to prevent backflow of wastewater or mixed water.

[0152] (5) In other possible implementations, the pipes of the drinking water treatment device can be provided with a total dissolved solids (TDS) sensor, a temperature sensor, etc. according to actual needs, for detecting water quality, water temperature, etc.

[0153] (6) In the fifth embodiment described above, the filter element cavity 17 is provided with a filter element cavity water outlet 172 and a mixed water outlet 173. In other possible embodiments, only one water outlet may be provided, and water is discharged from the same water outlet in both working modes.

[0154] It is understood that in this application, when the number of parts or components is not specifically limited, the number may be one or more, and the term "plurality" herein refers to two or more. Where the number of parts or components is shown in the drawings and / or described in the specification as a specific number, such as two, three, or four, the specific number is generally illustrative and not restrictive, and may be understood as a plurality, i.e., two or more. However, this does not mean that this application excludes the case of one.

[0155] In this application, unless otherwise clearly stated or limited, terms such as "install", "assemble", "connect", "connect", "couple", "link", "abut", "connect", "interconnect", "communicate", "conduct", "fix", "fasten", etc. should be understood in a broad sense, for example, they can be direct or indirect. For example, with respect to connection, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly stated or limited. For example, with respect to connectivity / conduction, it can be direct connectivity / conduction or indirect connectivity / conduction through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0156] In the present application, unless otherwise clearly stated or limited, a component provided on / installed on / located on / accommodated on / placed in, within, inside, etc. another component may be any of the following two situations: a part or most of the one component is located in the other component; and the one component is completely accommodated in the other component.

[0157] While the present application has been described in detail using the above-described embodiments, it will be apparent to those skilled in the art that the present application is not limited to the embodiments described in this specification. The present application can be modified and implemented as modified embodiments without departing from the subject matter and scope of the present application as defined by the claims. Therefore, the descriptions in this specification are for illustrative purposes only and do not have any limiting meaning with respect to the present application.

Claims

1. A drinking water treatment device, characterized in that: include: A powder adding module (1), the powder adding module (1) comprising a powder storage box (11) and a powder adding shaft (12), the bottom of the powder storage box (11) being provided with a discharge port (111), the powder adding shaft (12) being rotatably connected to the discharge port (111), the powder adding shaft (12) blocking the discharge port (111), and the peripheral wall of the powder adding shaft (12) being provided with one or more receiving grooves (121); A mixing water tank (2), wherein the mixing water tank (2) is provided with a mixing water tank liquid inlet (21), a mixing water tank liquid outlet (22) and a powder feed inlet (23), When the receiving groove (121) faces the interior of the powder storage box (11), the soluble powder in the powder storage box (11) can enter the receiving groove (121); when the receiving groove (121) faces the interior of the mixing water tank (2), the soluble powder in the receiving groove (121) can enter the mixing water tank (2); as well as An electrolysis module (3) is provided, wherein the electrolysis module (3) comprises an electrolysis module liquid inlet (31), an acidic water liquid outlet (32), and an alkaline water liquid outlet (33); the electrolysis module liquid inlet (31) is connected to the mixing water tank liquid outlet (22); and the electrolysis module (3) is capable of obtaining an acidic aqueous solution and an alkaline aqueous solution at the two electrodes of electrolyzed water, respectively.

2. The drinking water treatment device according to claim 1, characterized in that The drinking water treatment device further comprises a reverse osmosis filtration module (5), wherein the reverse osmosis filtration module (5) is provided with a filtration liquid inlet (51), a filtration liquid outlet (52) and a filtration wastewater outlet (53). The water discharged from the filtered liquid outlet (52) after being filtered by the reverse osmosis filtration module (5) serves as the water source for the drinking water treatment device.

3. The drinking water treatment device according to claim 2, characterized in that: The drinking water treatment device further comprises a water mixer, the water mixer comprising a main liquid inlet (41), a secondary liquid inlet (43) and a mixer liquid outlet (42), the secondary liquid inlet (43) being connected to the mixing water tank liquid outlet (22), and the mixer liquid outlet (42) being connected to the electrolysis module liquid inlet (31).

4. The drinking water treatment device according to claim 3, characterized in that: The water mixer is a venturi ejector (4), the auxiliary liquid inlet (43) is located at a diameter-reduced position of the venturi ejector (4), and the inner diameter of the auxiliary liquid inlet (43) is smaller than the inner diameter of the main liquid inlet (41). A one-way valve is provided between the auxiliary liquid inlet (43) and the mixing water tank liquid outlet (22).

5. The drinking water treatment device according to claim 3, characterized in that: The drinking water treatment device comprises a water mixer liquid inlet channel (L1) and a mixing water tank liquid inlet channel (L2), The two ends of the water mixer liquid inlet channel (L1) are respectively connected to the filtered liquid outlet (52) and the main liquid inlet (41). The water mixer liquid inlet channel (L1) is provided with a water mixer liquid inlet valve (S2) capable of controlling the on-off of the water mixer liquid inlet channel (L1). The two ends of the mixing water tank liquid inlet channel (L2) are respectively connected to the filtered liquid outlet (52) and the mixing water tank liquid inlet (21), and the mixing water tank liquid inlet channel (L2) is provided with a mixing water tank liquid inlet valve (S3) capable of controlling the on-off of the mixing water tank liquid inlet channel (L2).

6. The drinking water treatment device according to claim 1, characterized in that: The powder adding module (1) further comprises a motor (13) and a transmission mechanism (14), wherein the motor (13) is connected to the powder adding shaft (12) via the transmission mechanism (14), so that the motor (13) can drive the powder adding shaft (12) to rotate.

7. The drinking water treatment device according to claim 1, characterized in that: The peripheral wall of the powder adding shaft (12) and the discharge port (111) of the powder storage box (11) are in close contact, so that the soluble powder in the powder storage box (11) cannot pass between the discharge port (111) and the peripheral wall portion of the powder adding shaft (12) except the receiving groove (121).

8. The drinking water treatment device according to claim 2, characterized in that: The drinking water treatment device further comprises a raw water tank (6), wherein the raw water tank (6) comprises a raw water tank liquid inlet (61) and a raw water tank liquid outlet (62). The filtered liquid inlet (51) is connected to the raw water tank liquid outlet (62), and the filtered wastewater outlet (53) and / or the acidic water outlet (32) are connected to the raw water tank liquid inlet (61), so that the wastewater filtered by the reverse osmosis filtration module (5) and / or the acidic water solution generated by electrolysis enter the raw water tank (6) for reuse.

9. The drinking water treatment device according to claim 1, characterized in that: The mixing water tank (2) is provided with a water level sensor and / or a conductivity sensor.

10. The drinking water treatment device according to claim 2, characterized in that: The drinking water treatment device further comprises a pre-filter element (7), and the pre-filter element (7) is arranged on the upstream side of the reverse osmosis filtration module (5).

11. The drinking water treatment device according to claim 2, characterized in that: The drinking water treatment device further comprises a post-membrane filter element (8), and the post-membrane filter element (8) is arranged on the downstream side of the reverse osmosis filtration module (5).

12. The drinking water treatment device according to claim 11, characterized in that: The powder adding module (1) further comprises a filter core cavity (17), and the post-membrane filter core (8) is arranged in the filter core cavity (17).

13. The drinking water treatment device according to claim 12, characterized in that: The filter element cavity (17) is provided with a water inlet (171), a filter element cavity water outlet (172) and a mixed water outlet (173); the water inlet (171) is connected to the filtered liquid outlet (52), and the mixed water outlet (173) is connected to the mixed water tank liquid inlet (21).

14. The drinking water treatment device according to claim 12, characterized in that: The powder adding module (1) further comprises a powder receiving chamber (16), wherein the powder receiving chamber (16) is arranged below the powder storage box (11). The powder receiving chamber (16) is provided with a powder receiving container (18), and the powder receiving container (18) is provided with a powder receiving cavity (181) with an opening facing upward, and the powder receiving cavity (181) is located below the powder adding shaft (12). The powder receiving container (18) is provided with a liquid inlet channel (182), one end of the liquid inlet channel (182) is connected to the filter element cavity (17), and the other end of the liquid inlet channel (182) is connected to the powder receiving cavity (181), so that the liquid in the filter element cavity (17) can pass into the powder receiving cavity (181).

15. The drinking water treatment device according to claim 14, characterized in that: The powder receiving container (18) is movable in the powder receiving chamber (16) in an up-down direction. The lower part of the powder receiving container (18) is located inside the filter element cavity (17), and the liquid in the filter element cavity (17) can exert buoyancy on the powder receiving container (18), thereby causing the powder receiving container (18) to move upward. The powder receiving container (18) is connected to a receiving container driving unit, and the receiving container driving unit can exert a downward force on the powder receiving container (18), causing the powder receiving container (18) to overcome the buoyancy and move downward.

16. The drinking water treatment device according to claim 14, characterized in that The powder adding module (1) further comprises a dry-wet separation chamber (15), wherein the dry-wet separation chamber (15) is arranged between the powder storage box (11) and the powder receiving chamber (16).

17. The drinking water treatment device according to claim 3, characterized in that: The drinking water treatment device further comprises a heating module (9), and the heating module (9) is arranged on the downstream side of the mixer liquid outlet (42) and / or the alkaline water liquid outlet (33).

18. The drinking water treatment device according to claim 1, characterized in that The soluble powder can improve the electrical conductivity of water when added into water.

19. The drinking water treatment device according to claim 1, characterized in that: The soluble powder comprises one or more of mineral powder, electrolyte beverage solid powder and food additive.

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