CN212403785U

CN212403785U - Household water purifying device

Info

Publication number: CN212403785U
Application number: CN202020462510.1U
Authority: CN
Inventors: 陈小平; 吕苏; 晏博; 董红晨
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Foshan Viomi Electrical Technology Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-01-26
Anticipated expiration: 2030-04-01

Abstract

The application relates to the technical field of domestic water purification, specifically discloses a domestic purifier, include: the electrically-driven double-flow-channel desalting assembly comprises a first water inlet, a concentrated water outlet and a first water outlet, wherein the double-flow-channel desalting assembly is used for purifying water flowing in from the first water inlet to obtain concentrated water and produced water, the concentrated water flows out from the concentrated water outlet, and the produced water flows out from the first water outlet; the single-channel desalting component comprises a second water inlet and a second water outlet, the first water outlet is communicated with the second water inlet, when the produced water generated by the double-channel desalting component flows into the second water inlet from the first water outlet, the single-channel desalting component carries out secondary purification treatment on the inflowing produced water to obtain purified water, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. This application can improve purifier's water purification effect.

Description

Household water purifying device

Technical Field

The utility model relates to a domestic water purification technical field especially relates to a domestic purifier.

Background

Along with the progress of society, the living standard of people is improved, and people pay more and more attention to the sanitation of self diet drinking water. At present, tap water is treated by a chlorination method generally, so that water-borne diseases can be effectively prevented, but the tap water contains salt, impurities, residual chlorine and the like, does not have conditions for direct drinking, and needs to be purified before drinking.

In the prior art, water can be purified by an electrically driven desalination device so as to achieve the effect of improving water quality. In order to ensure the quality of purified water, when an electrically driven desalination filter element is used for purifying water, the voltage of an electrically driven desalination device is generally required to be set high, and the water purification effect of the desalination device is affected when the electrically driven desalination device is in a high-voltage state for a long time.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a domestic purifier, carries out secondary purification treatment to single flow path desalination subassembly through the product water that produces double flow path desalination subassembly in the water purification process, can improve the water purification effect.

The application provides a domestic purifier, domestic purifier includes:

the electrically-driven double-flow-channel desalting assembly comprises a first water inlet, a concentrated water outlet and a first water outlet, and is used for purifying water flowing in from the first water inlet to obtain concentrated water and produced water, wherein the concentrated water flows out from the concentrated water outlet, and the produced water flows out from the first water outlet;

the single-channel desalting component comprises a second water inlet and a second water outlet, the first water outlet is communicated with the second water inlet, when the produced water produced by the double-channel desalting component flows into the second water inlet from the first water outlet, the single-channel desalting component carries out secondary purification treatment on the produced water flowing into the second water inlet to obtain purified water, and the purified water flows out from the second water outlet;

and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet.

Illustratively, the piping system further includes a third piping, a fourth piping, a fifth piping, a sixth piping, a seventh piping, a first three-way valve including the first valve, the second valve, and the third valve, and a second three-way valve including the fourth valve, the fifth valve, and the sixth valve;

the third pipeline is connected between the first water outlet and the first valve, the fourth pipeline is connected between the third valve and the fourth valve, the fifth pipeline is connected with the sixth valve, the sixth pipeline is connected between the fifth valve and the second water inlet, and the seventh pipeline is connected between the second valve and the second water outlet;

when the single-channel desalination assembly is powered off or reverse voltage is applied, the produced water flowing into the single-channel desalination assembly through the second water outlet cleans or regenerates the single-channel desalination assembly to obtain wastewater, the wastewater flows out through the second water inlet, and the wastewater flowing out through the second water inlet is discharged to the fifth pipeline through the fifth valve and the sixth valve.

Illustratively, the single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge; the electrically driven dual-flow desalination assembly comprises at least one of an electrodialysis unit, a reverse electrodialysis unit.

Illustratively, the chemisorptive desalination cartridge comprises at least one of an ion exchange resin cartridge, a bipolar membrane electrodeionization cartridge;

the physical adsorption desalination filter element comprises at least one of a capacitance desalination filter element and a membrane capacitance desalination filter element.

Illustratively, the piping system includes a pre-filter assembly between the first pipe and the first water inlet, the pre-filter assembly including a PP cotton filter element and/or an activated carbon filter element.

Illustratively, the activated carbon filter element comprises a scale inhibition activated carbon filter element and a non-scale inhibition activated carbon filter element.

Illustratively, the pipe-line system includes the rearmounted filter assembly who sets up in the delivery port department of second pipeline, rearmounted filter assembly includes micro-filtration filter core and/or active carbon filter core.

Exemplarily, the household water purifying device further comprises a control component and a conductivity acquisition component, wherein the control component is connected with the conductivity acquisition component, and the conductivity acquisition component is arranged on the second pipeline and used for acquiring the conductivity of the collected water;

the control component is used for acquiring the conductivity acquired by the conductivity acquisition component and adjusting the voltage of the electrically-driven double-flow-channel desalination component and/or the electrically-driven single-flow-channel desalination component when the conductivity does not reach the target conductivity so as to adjust the conductivity of the water.

Exemplarily, the second pipeline includes a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline and a normal temperature pipeline, the purified water flowing out from the second water outlet flows into the second pipeline through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.

Illustratively, the heating pipeline comprises a flow regulating assembly, a fourth water inlet, a heating assembly and a fifth water outlet, wherein water flowing out of the third water outlet is regulated by the flow regulating assembly, then flows in from the fourth water inlet, is heated by the heating assembly, and then flows out from the fifth water outlet.

The application discloses domestic purifier includes: the electrically-driven double-flow-channel desalting assembly comprises a first water inlet, a concentrated water outlet and a first water outlet, wherein the double-flow-channel desalting assembly is used for purifying water flowing in from the first water inlet to obtain concentrated water and produced water, the concentrated water flows out from the concentrated water outlet, and the produced water flows out from the first water outlet; the single-channel desalting component comprises a second water inlet and a second water outlet, the first water outlet is communicated with the second water inlet, when the produced water produced by the double-channel desalting component flows into the second water inlet from the first water outlet, the single-channel desalting component carries out secondary purification treatment on the produced water flowing into the second water inlet to obtain purified water, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. The water produced by the double-flow-channel desalting component in the water purification process is conveyed to the single-flow-channel desalting component for secondary purification treatment, so that the water purification effect can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a household water purifying device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of a bipolar membrane electrodeionization cartridge desalination process;

FIG. 3 is a schematic diagram of the bipolar membrane electrodeionization filter regeneration process;

FIG. 4 is a schematic structural diagram of an embodiment of a household water purifying apparatus;

FIG. 5 is a schematic diagram of an embodiment of a household water purifying apparatus;

fig. 6 is a schematic view of the connection relationship of the parts in the household water purifying device.

Reference numerals: 100. an electrically driven dual-flow desalination assembly; 110. a first water inlet; 120. a concentrated water outlet; 130. a first water outlet; 200. a single-channel desalination assembly; 210. a second water inlet; 220. a second water outlet; 300. a piping system; 310. a first pipeline; 320. a second pipeline; 330. a pre-filter assembly; 340. a third pipeline; 350. a fourth pipeline; 360. a fifth pipeline; 370. a sixth pipeline; 380. a seventh pipeline; 400. a first three-way valve; 410. a first valve; 420. a second valve; 430. a third valve; 500. a second three-way valve; 510. a fourth valve; 520. a fifth valve; 530. a sixth valve; 10. a first conductivity acquisition component; 20. a second conductivity acquisition component; 600. a power supply assembly; 700. a control component; 900. a bipolar membrane electrodeionization filter element; 910. an electrode; 911. a first electrode; 912. a second electrode; 920. bipolar membrane; 921. a cation exchange membrane; 922. an anion exchange membrane.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The flow diagrams depicted in the figures are merely illustrative and do not necessarily include all of the elements and operations/steps, nor do they necessarily have to be performed in the order depicted. For example, some operations/steps may be decomposed, combined or partially combined, so that the actual execution sequence may be changed according to the actual situation. In addition, although the division of the functional blocks is made in the device diagram, in some cases, it may be divided in blocks different from those in the device diagram.

The embodiment of the application provides a household water purifying device which can be a water purifier, such as a table-board type water purifying/drinking machine.

Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

Fig. 1 is a schematic structural diagram of the household water purifying device in the embodiment.

Referring to FIG. 1, a domestic water purification apparatus includes an electrically driven dual-channel desalination module 100, a single-channel desalination module 200, and a piping system 300.

Specifically, as shown in fig. 1, the electrically driven double-channel desalination module 100 comprises a first water inlet 110, a concentrated water outlet 120 and a first water outlet 130, and the electrically driven double-channel desalination module 100 performs a purification treatment on water flowing in from the first water inlet 110 to obtain concentrated water and produced water, wherein the concentrated water flows out through the concentrated water outlet 120, and the produced water flows out through the first water outlet 130. Among them, water carrying cations such as Na + and anions such as chloride ions is referred to as concentrated water.

It should be noted that the electrically driven double-channel desalination assembly 100 at least uses one water inlet and two water outlets when purifying water flowing through the assembly, and needs to be powered by the power supply assembly, and is therefore called an electrically driven double-channel desalination assembly.

Illustratively, the electrically driven dual-channel desalination assembly 100 includes at least one of an electrodialysis unit, a reverse electrodialysis unit.

In one embodiment, the electrically driven dual channel desalination assembly 100 purifies water flowing in from the first water inlet 110 based on a predetermined voltage to obtain concentrated water flowing out through the concentrated water outlet 120 and produced water flowing out through the first water outlet 130. The preset voltage is determined according to the voltage corresponding to the limiting current of the electrically-driven double-channel desalination assembly 100 and any one voltage percentage in a preset voltage percentage range, and the preset voltage percentage range is 50% -70%. By controlling the operating voltage of the electrically driven dual-channel desalination assembly 100 to be between 50% of the voltage corresponding to the limiting current and 70% of the voltage corresponding to the limiting current, the service life of the electrically driven dual-channel desalination assembly 100 can be increased.

Specifically, as shown in fig. 1, the single-channel desalination module 200 comprises a second water inlet 210 and a second water outlet 220, and the first water outlet 130 of the electrically-driven double-channel desalination module 100 is communicated with the second water inlet 210 of the single-channel desalination module 200, so that when the produced water produced in the water purification process of the electrically-driven double-channel desalination module 100 flows into the second water inlet 210 from the first water outlet 130, the single-channel desalination module 200 performs a secondary purification treatment on the produced water flowing in from the second water inlet 210 to obtain purified water, and the purified water flows out through the second water outlet 220. Because the produced water contains less salt and impurities, the single-channel desalination assembly 200 purifies the produced water, which can reduce the regeneration or cleaning frequency of the single-channel desalination assembly 200 and can also improve the service life of the single-channel desalination assembly 200.

It will be appreciated that the single-channel desalination assembly 200 uses only one water inlet and one water outlet for the purification of water flowing therethrough, and thus may be referred to as a single-channel desalination assembly.

In some embodiments, the single-channel desalination assembly 200 can, of course, also include other water inlets and/or outlets. For example, when the single-channel desalination assembly 200 is flushed and regenerated, the generated wastewater can be discharged through the water outlet. When the single-channel desalination assembly 200 is used to purify water flowing through, the water inlets and/or outlets other than the second water inlet and outlet 220 can be closed to form a single-channel structure.

The single channel desalination assembly 200 may not discharge wastewater when purifying water flowing therethrough. Through adopting the desalination subassembly of single current way to carry out the water purification, the water that gets into single current way desalination subassembly 200 can be followed the delivery port and discharged, obtains purification treatment simultaneously, does not produce waste water in this process, has improved the utilization ratio of water.

In some embodiments, the single-channel desalination assembly 200 comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge.

Illustratively, the chemisorptive desalination cartridge can include at least one of an ion exchange (IX) resin cartridge, a bipolar membrane (Biopolar, BP) electrodeionization cartridge.

Illustratively, the physisorption desalination filter element may include at least one of a Capacitive Desalination (CDI) filter element, a Membrane Capacitive Desalination (MCDI) filter element.

Specifically, the capacitive desalination filter element, the membrane capacitive desalination filter element, the bipolar membrane electrodeionization filter element and the like can cause the directional migration of cations and anions when being electrified so as to realize the purification treatment of water, and the filter elements can be called as electrically driven desalination filter elements.

Specifically, as shown in fig. 2 and 3, a schematic diagram of a structure of a bipolar membrane electrodeionization filter cartridge 900 is shown.

As shown in fig. 2 and 3, the bipolar membrane electrodeionization filter cartridge 900 includes one or more pairs of electrodes 910, and at least one bipolar membrane 920 or a plurality of spaced-apart bipolar membranes 920 is disposed between at least one pair of electrodes 910. Wherein, bipolar membrane 920 includes cation exchange membrane 921 and anion exchange membrane 922, and cation exchange membrane 921 and anion exchange membrane 922 set up relatively, compound together. For example, the bipolar membrane 920 can be produced by a hot press molding method, a bonding molding method, a casting molding method, an anion and cation exchange radical method, an electrodeposition molding method, or the like. Specifically, there is no space between the cation exchange membrane 921 and the anion exchange membrane 922 on one bipolar membrane 920, for example, water does not pass between the cation exchange membrane 921 and the anion exchange membrane 922 on the same bipolar membrane 920 when flowing through the bipolar membrane electrodeionization filter cartridge 900.

As shown in fig. 2 and 3, the pair of electrodes 910 includes a first electrode 911 and a second electrode 912, wherein the first electrode 911 is disposed opposite to a cation exchange membrane 921 of the bipolar membrane 920 adjacent to the first electrode 911, and the second electrode 912 is disposed opposite to an anion exchange membrane 922 of the bipolar membrane 920 adjacent to the second electrode 912.

Fig. 2 is a schematic diagram showing the operation principle of the bipolar membrane electrodeionization filter element 900 in the process of purifying water. Here, the potential of the first electrode 911 is higher than that of the second electrode 912, that is, a voltage in a forward direction is applied between the first electrode 911 and the second electrode 912. At this time, anions such as chloride ions in the raw water to be purified move towards the first electrode 911, and replace OH < - > in the anion exchange membrane 922 in the direction of the first electrode 911, and the OH < - > enters the flow channel between the adjacent bipolar membranes 920; meanwhile, cations such as Na + in the raw water move towards the second electrode 912 to replace H + in the cation exchange membrane 921 in the direction of the second electrode 912, and the H + enters the flow channel; h + and OH-are subjected to neutralization reaction in the flow channel to generate water, so that the salt in the raw water is removed, and purified pure water flows out from the tail end of the flow channel.

As shown in fig. 3, when a voltage in the opposite direction is applied between the first electrode 911 and the second electrode 912, so that the potential of the first electrode 911 is lower than that of the second electrode 912, OH "and H + ions are generated on the surfaces of the cation exchange membrane 921 and the anion exchange membrane 922 of the bipolar membrane 920 under the action of an electric field, cations such as Na + inside the cation exchange membrane 921 are replaced by H + ions and move toward the first electrode 911 at a low potential, anions such as chloride ions in the anion exchange membrane 922 are replaced by OH" and move toward the second electrode 912 at a high potential, and the cations such as Na + and the anions such as chloride ions enter the flow channel and can be washed out by water flowing through the bipolar membrane electrodeionization filter 900. Therefore, when the power is off or reverse voltage is applied to the desalting filter cores such as the bipolar membrane electrodeionization filter core 900 and the like, cations such as Na < + > and the like and anions such as chloride ions and the like adsorbed on the bipolar membrane 920 can be released, so that salt substances of the bipolar membrane electrodeionization filter core can be washed out by water, and regeneration is realized; water carrying cations such as Na + and anions such as chloride ions can be called concentrated water.

Specifically, as shown in fig. 1, the pipe system 300 includes a first pipe 310 and a second pipe 320, the first pipe 310 is used for supplying water to the first water inlet 110, and the second pipe 320 outputs purified water flowing out through the second water outlet 220.

In some embodiments, the domestic water purification apparatus further comprises a raw water tank capable of storing raw water, and the first pipeline 310 has one end connected to the raw water tank and the other end connected to the first water inlet 110 of the electrically driven dual-channel desalination assembly 100.

Illustratively, the raw water tank comprises a transparent shell or a transparent window is arranged on the shell, so that a user can conveniently check the water quality, the water level and the like in the raw water tank.

For example, the raw water tank may further include a water injection port through which water to be purified may be added into the raw water tank. For example, the water filling port is connected with a tap water pipe.

In an exemplary embodiment, the raw water tank is further provided with a liquid level meter, and when the liquid level in the raw water tank drops to a set value, the raw water tank can control a valve of the tap water pipe to open to feed water to a water feeding port of the raw water tank.

It will be appreciated that first conduit 310 may also be connected directly to a tap water line at one end and to first water inlet 110 of electrically driven dual-flow desalination assembly 100 at the other end.

In some embodiments, the household water purifying apparatus further includes a purified water tank capable of storing purified water, and the purified water flowing out through the second water outlet 220 flows into the purified water tank through the second pipe 320. Through storing the water purification in the water purification case, can improve the water yield, reduce user's latency.

Illustratively, a liquid level meter is also provided in the clean water tank, and the electrically driven dual-flow desalination assembly 100 and single-flow desalination assembly 200 can be controlled to stop operating when the liquid level in the clean water tank rises to a first set point, and the electrically driven dual-flow desalination assembly 100 and single-flow desalination assembly 200 can be controlled to start operating when the liquid level in the clean water tank falls to a second set point.

In some embodiments, as shown in FIG. 4, the pipe system 300 includes a pre-filter assembly 330 positioned between the first pipe 310 and the first water inlet 110. The pre-filter assembly 330 may be used to purify the water entering the electrically driven dual-flow desalination assembly 100, for example, to remove particulate impurities, residual chlorine, etc., thereby reducing the workload and consumption of the electrically driven dual-flow desalination assembly 100 and prolonging the regeneration cycle and service life thereof.

Illustratively, the pre-filter assembly 330 includes a PP cotton filter element and/or an activated carbon filter element.

Illustratively, the activated carbon filter element comprises a scale inhibition activated carbon filter element and a non-scale inhibition activated carbon filter element, the scale inhibition activated carbon filter element comprises a scale inhibitor and activated carbon, the non-scale inhibition activated carbon filter element only comprises activated carbon, the scale inhibitor on the scale inhibition activated carbon filter element can prevent water from scaling, so that a subsequent electrically-driven double-channel desalination assembly can purify water, and the service life of the electrically-driven double-channel desalination assembly can be prolonged.

In some embodiments, the pipe system 300 includes a post-filter assembly disposed at the outlet of the second pipe 320, the post-filter assembly including a microfiltration cartridge and/or an activated carbon cartridge. The quality of the purified water in the single-channel desalination module 200 can be further improved by further purifying the purified water by the post-filtration module.

In some embodiments, as shown in fig. 5, the piping system 300 further includes a third piping 340, a fourth piping 350, a fifth piping 360, a sixth piping 370, a seventh piping 380, a first three-way valve 400, and a second three-way valve 500, the first three-way valve 400 including a first valve 410, a second valve 420, and a third valve 430, the second three-way valve 500 including a fourth valve 510, a fifth valve 520, and a sixth valve 530.

Illustratively, the third pipeline 340 is connected between the first water outlet 130 and the first valve 410, the fourth pipeline 350 is connected between the third valve 430 and the fourth valve 510, the fifth pipeline 360 is connected with the sixth valve 530, the sixth pipeline 370 is connected between the fifth valve 520 and the second water inlet 210, and the seventh pipeline is connected between the second valve 420 and the second water outlet 220, wherein when the single-channel desalination assembly 200 is powered off or a reverse voltage is applied, the produced water flowing into the single-channel desalination assembly 200 through the second water outlet 220 washes or regenerates the single-channel desalination assembly 200 to obtain wastewater, the wastewater flows out through the second water inlet 210, and the wastewater flowing out through the second water inlet 210 is discharged to the fifth pipeline 360 through the fifth valve 520 and the sixth valve 530.

The single-channel desalination assembly 200 is used for a period of time, and then the pure water produced by the electrically driven double-channel desalination assembly is reversely fed to the second water outlet 220 to flush the saline substances in the single-channel desalination assembly 200, thereby improving the cleaning or regeneration efficiency of the single-channel desalination assembly 200 and reducing the scaling risk of the single-channel desalination assembly 200.

Illustratively, when the single-channel desalination assembly 200 is being cleaned or regenerated, the first valve 410, the second valve 420, the fifth valve 520, and the sixth valve 530 are in an open state, the third valve 430 and the fourth valve 510 are in a closed state, the first pipeline 310 sends water to the first water inlet 110, the dual-channel desalination assembly 100 purifies the water to obtain produced water and concentrated water, the concentrated water flows out through the concentrated water inlet 120, the produced water flows out through the first water outlet 130, the produced water is conveyed to the second water outlet 220 through the first valve 410 and the second valve 420, the produced water flows into the single-channel desalination assembly 200 through the second water outlet 220, the produced water flowing into the single-channel desalination assembly 200 through the second water outlet 220 cleans or regenerates the single-channel desalination assembly 200 to obtain wastewater, the wastewater flows out through the second water inlet 210, and the wastewater flowing out through the second water inlet 210 is discharged to the fifth pipeline 360 through the fifth valve 520 and the sixth valve 530.

For example, when the household water purification device performs water purification treatment on water, the first valve 410, the third valve 430, the fourth valve 510 and the fifth valve 520 are in an open state, and the second valve 420 and the sixth valve 530 are in a closed state, the first pipeline 310 sends water to the first water inlet 110, the dual-channel desalination assembly 100 performs water purification treatment on water to obtain produced water and concentrated water, the concentrated water flows out through the concentrated water outlet 120, the produced water flows out through the first water outlet 130, the produced water is sent to the second water inlet 210 through the first valve 410, the third valve 430, the fourth pipeline 350, the fourth valve 510, the fifth valve 520 and the sixth pipeline 370, and the single-channel desalination assembly 200 performs secondary purification treatment on the produced water flowing in from the second water inlet 210 to obtain purified water, and the purified water flows out through the second water outlet 220.

Illustratively, as shown in fig. 4 and 6, the household water purifying device further includes a power supply assembly 600, a control assembly 700, and a first conductivity acquisition assembly 10, wherein the control assembly 700 is connected to the first conductivity acquisition assembly 10, the first conductivity acquisition assembly 10 is disposed in the second pipeline 320 for acquiring the conductivity of the purified water, and the power supply assembly 600 supplies power to the electrically driven single-channel desalination assembly 200 and the electrically driven double-channel desalination assembly 100.

The water quality of water at the corresponding position can be detected through the conductivity acquisition assembly. For example, the TDS value is a water quality test indicator specifically set for purified water, and represents the total soluble solids content of water. The TDS value can reflect the water quality to a certain degree, and generally, the lower the TDS value is, the less soluble salts such as heavy metal ions in the water are, and the purer the water quality is.

In some embodiments, the voltage at which the power supply assembly 600 supplies the electrically driven single channel desalination assembly 200 can be adjusted, and the desalination rate of the electrically driven single channel desalination assembly 200 changes as the voltage at which the power supply assembly 600 supplies power is adjusted, thereby changing the conductivity of the water.

Illustratively, the control module 700 is configured to obtain the conductivity collected by the first conductivity collection module 10 and adjust the voltage of the electrically driven single channel desalination module 200 to adjust the conductivity of the water when the conductivity does not reach the target conductivity.

In some embodiments, as shown in fig. 4, the household water purifying apparatus further comprises a second conductivity acquisition assembly 20, the second conductivity acquisition assembly 20 is disposed at the first water outlet 130 and is used for acquiring the conductivity of the produced water of the electrically-driven double-channel desalination assembly 100, the control assembly 700 is connected with the second conductivity acquisition assembly 20, the control assembly 700 determines the target voltage of the electrically-driven single-channel desalination assembly 200 through the target conductivity, the conductivity acquired by the first conductivity acquisition assembly 10 and the conductivity acquired by the second conductivity acquisition assembly 10, and adjusts the voltage of the electrically-driven single-channel desalination assembly 200 to the target voltage, so that the conductivity acquired by the first conductivity acquisition assembly 10 reaches the target conductivity.

In some embodiments, the control module 700 is further configured to determine a first operating voltage of the electrically driven dual-channel desalination module 100 and a second operating voltage of the electrically driven single-channel desalination module 100 based on the set electrical conductivity, the first operating voltage range of the electrically driven dual-channel desalination module 100, and the second operating voltage range of the electrically driven single-channel desalination module 100, and adjust the operating voltage of the electrically driven dual-channel desalination module 100 to the first operating voltage and the operating voltage of the electrically driven single-channel desalination module 200 to the second operating voltage via the power supply module 600.

The set conductivity is 100-200, the first working voltage range is determined according to the voltage corresponding to the limiting current of the electrically-driven double-channel desalination assembly 100 and any voltage percentage in a preset voltage percentage range, the preset voltage percentage range is 50-70%, the second working voltage range is determined according to the voltage corresponding to the limiting current of the electrically-driven single-channel desalination assembly 200 and any voltage percentage in the preset voltage percentage range, and the preset voltage percentage range is 50-70%.

By adjusting the operating voltage of the electrically driven double-channel desalination module 100 and the operating voltage of the electrically driven single-channel desalination module 200 within a predetermined range and adjusting the electrical conductivity within a predetermined range, the service life of the electrically driven double-channel desalination module 100 and the service life of the electrically driven single-channel desalination module 200 can be ensured, and the water purification effect can be ensured.

For example, the target conductivity may be previously stored in the memory of the control assembly 700, or the control assembly 700 may determine the target conductivity according to a setting operation of a user. When the conductivity of the water reaches the target conductivity, the water can be determined to be sufficiently pure, for example, to meet drinking standards.

Illustratively, in the process of purifying water, the salinity concentration in the water can be detected in real time by detecting the electrical conductivity of the water, and the desalination rate of the electrically driven single-channel desalination module 200 can be adjusted by changing the voltage of the electrically driven single-channel desalination module 200, so as to ensure the stability of the quality of the produced water.

In some embodiments, the control assembly 700 includes an input device, which may include, for example, a button, a knob, a touch screen, a microphone, and the like.

For example, a user may perform a setting operation of a target conductivity through an input device, and the control component 700 may determine the target conductivity according to the setting operation of the user.

For example, when the input device detects a water outlet control operation, such as a user pressing a water outlet button, or uttering a voice including a water outlet command, it is determined whether the conductivity detected by the first conductivity acquisition assembly 10 reaches the target conductivity. When the conductivity reaches the target conductivity, the control assembly 700 may control the outlet valve of the second conduit 320 to send the water out for use by the user.

In some embodiments, the single-channel desalination assembly 200 can include a housing and a filter element removably received within an interior of the housing. The filter element includes, for example, a physisorption desalination filter element and/or a chemisorption desalination filter element as previously described. The filter elements of the single-channel desalination assembly 200 can be removed and flushed as needed to regenerate the filter elements of the single-channel desalination assembly 200.

In some embodiments, the single channel desalination assembly 200 is powered in a first direction to purify water flowing therethrough; when the single-channel desalination assembly 200 is powered in a second direction opposite the first direction, the water flowing through cleans the single-channel desalination assembly 200.

Illustratively, the single-channel desalination assembly 200 can include a waste water discharge port. When needed, the power supply assembly can provide reverse voltage for the electrically driven single-channel desalination assembly, so as to realize the flushing and regeneration of the filter element of the single-channel desalination assembly 200, and the generated wastewater can be discharged through the wastewater discharge port.

For example, when the duration that the water quality detected by the first conductivity acquisition assembly 10 does not reach the target conductivity exceeds a preset time period, such as 24 hours, it may be determined that the single channel desalination assembly 200 needs to be regenerated, for example, a corresponding prompt message may be output to a user, or a reverse voltage may be provided to the electrically driven desalination filter element by the power supply assembly, so as to implement washing and regeneration of the filter element of the single channel desalination assembly 200.

In some embodiments, the second pipeline 320 includes a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline, and a normal temperature pipeline, the purified water flowing out of the second water outlet 220 flows into the second pipeline 320 through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.

Exemplarily, the heating pipeline comprises a flow regulating assembly, a fourth water inlet, a heating assembly and a fifth water outlet, wherein water flowing out of the third water outlet flows in from the fourth water inlet after being regulated by the flow regulating assembly, the heating assembly heats the flowing water, and the heated water flows out from the fifth water outlet.

Illustratively, the heating assembly includes, for example, a heat exchanger or the like, and the heating assembly can heat the inflow water to provide hot water at a desired temperature to a user.

For example, the flow regulating assembly includes a flow regulating valve and the like, and the flow regulating assembly can perform flow regulation on the water flowing out from the third water outlet, so that rapid heating of the water can be realized, for example, in the case that the heating power of the heating assembly is fixed, the heating is faster when less water flows in through the flow regulating assembly, and conversely, the heating is slower when more water flows in through the flow regulating assembly.

The domestic purifier that the above-mentioned embodiment of this specification provided includes: the electrically-driven double-flow-channel desalting assembly comprises a first water inlet, a concentrated water outlet and a first water outlet, wherein the double-flow-channel desalting assembly is used for purifying water flowing in from the first water inlet to obtain concentrated water and produced water, the concentrated water flows out from the concentrated water outlet, and the produced water flows out from the first water outlet; the single-channel desalting component comprises a second water inlet and a second water outlet, the first water outlet is communicated with the second water inlet, when the produced water produced by the double-channel desalting component flows into the second water inlet from the first water outlet, the single-channel desalting component carries out secondary purification treatment on the produced water flowing into the second water inlet to obtain purified water, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. The water produced by the double-flow-channel desalting component in the water purification process is conveyed to the single-flow-channel desalting component for secondary purification treatment, so that the water purification effect can be improved.

In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the embodiments of the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

In the embodiments of the present application, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A domestic water purification unit, its characterized in that, domestic water purification unit includes:

2. The domestic water purification apparatus of claim 1, wherein the pipe system further comprises a third pipe, a fourth pipe, a fifth pipe, a sixth pipe, a seventh pipe, a first three-way valve and a second three-way valve, the first three-way valve comprising a first valve, a second valve and a third valve, the second three-way valve comprising a fourth valve, a fifth valve and a sixth valve;

3. The domestic water purification apparatus of claim 1, wherein the single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge; the electrically driven dual-flow desalination assembly comprises at least one of an electrodialysis unit, a reverse electrodialysis unit.

4. The domestic water purification apparatus of claim 3, wherein said chemisorptive desalination cartridge comprises at least one of an ion exchange resin cartridge, a bipolar membrane electrodeionization cartridge;

5. The domestic water purification device of claim 1, wherein the pipe system comprises a pre-filter assembly between the first pipe and the first water inlet, the pre-filter assembly comprising a PP cotton filter element and/or an activated carbon filter element.

6. The domestic water purification device of claim 5, wherein the activated carbon filter element comprises a scale inhibiting activated carbon filter element and a non-scale inhibiting activated carbon filter element.

7. The domestic water purification device of claim 1, wherein the pipe system comprises a post-filter assembly disposed at the outlet of the second pipe, the post-filter assembly comprising a micro-filtration cartridge and/or an activated carbon cartridge.

8. The household water purifying device according to claim 1, further comprising a control component and a conductivity acquisition component, wherein the control component is connected with the conductivity acquisition component, and the conductivity acquisition component is arranged on the second pipeline and used for acquiring the conductivity of the collected water;

9. The domestic water purifying apparatus according to any one of claims 1 to 8, wherein the second pipeline comprises a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline and a normal temperature pipeline, the purified water flowing out from the second water outlet flows into the second pipeline through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.

10. The domestic water purification apparatus of claim 9, wherein the heating pipeline comprises a flow regulating assembly, a fourth water inlet, a heating assembly and a fifth water outlet, wherein the water flowing out of the third water outlet is regulated by the flow regulating assembly, then flows in from the fourth water inlet, is heated by the heating assembly, and flows out from the fifth water outlet.