CN212532576U

CN212532576U - Household water purifying device

Info

Publication number: CN212532576U
Application number: CN202020462508.4U
Authority: CN
Inventors: 陈小平; 吕苏; 晏博; 董红晨; 郝楠
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Guangdong Lizi Technology Co Ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2021-02-12
Anticipated expiration: 2030-04-01

Abstract

The application relates to the technical field of domestic water purification, specifically discloses a domestic purifier, include: a desalination assembly comprising a first water inlet and a first water outlet; a single-channel desalination assembly comprising a second water inlet and a second water outlet; the pipeline system comprises a first pipeline, a second pipeline, a third pipeline, a fourth pipeline, a first valve assembly, a second valve assembly and a third valve assembly, when voltage in the opposite direction is applied to the single-channel desalination assembly, the purified water is guided to a heating assembly arranged on the fourth pipeline through the first valve assembly to be heated, the heated purified water is guided into the single-channel desalination assembly through the third valve assembly and a second water outlet, the single-channel desalination assembly is cleaned or regenerated, wastewater is obtained, and the wastewater is guided into the third pipeline through a second water inlet and the second valve assembly. The present application can improve the regeneration efficiency of desalination assemblies and reduce scaling risks.

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, a household water purifying device usually adopts a bipolar membrane desalination filter element to purify tap water so as to prepare purified water which can be directly drunk, however, the bipolar membrane desalination filter element can adsorb ions and impurities in the water in the working process, and after the bipolar membrane desalination filter element is used for a period of time, the bipolar membrane desalination filter element needs to be regenerated.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a domestic purifier, through with the water purification heating back that desalination subassembly produced in the water purification process, reverse transport is to single flow path desalination subassembly and is regenerated, can improve single flow path desalination subassembly's regeneration efficiency and reduce the scale deposit risk.

The application provides a domestic purifier, domestic purifier includes:

the desalination assembly comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet to obtain purified water, and the purified water flows out from the first water outlet;

the single-channel desalting component comprises a second water inlet and a second water outlet, and when positive voltage is applied to the single-channel desalting component, the single-channel desalting component purifies the water flowing in from the second water inlet, and the treated water flows out from the second water outlet;

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 first water outlet and/or the second water outlet;

the pipeline system further comprises a third pipeline, a fourth pipeline, a first valve assembly, a second valve assembly and a third valve assembly, the fourth pipeline is provided with a heating assembly, when the single-channel desalination assembly is applied with voltage in the opposite direction, the purified water flowing out from the first water outlet is guided to the heating assembly of the fourth pipeline through the first valve assembly to be heated to obtain hot purified water, the hot purified water is guided into the second water outlet through the third valve assembly, and the hot purified water flowing into the single-channel desalination assembly is cleaned or regenerated to obtain waste water, and the waste water is guided into the third pipeline through the second water inlet and the second valve assembly.

Illustratively, the desalination assembly comprises one of a single-channel desalination assembly and a double-channel desalination assembly, wherein if the desalination assembly is a double-channel desalination assembly, the double-channel desalination assembly further comprises a concentrated water outlet, the double-channel desalination assembly performs purification treatment on water flowing in from the first water inlet to obtain concentrated water and purified water, the purified water flows out through the first water outlet, and the concentrated water flows out through the concentrated water outlet.

Illustratively, the fourth pipeline is further provided with a pressure water storage tank and a fourth valve assembly, the first pipeline is provided with a driving assembly, when the water outlet of the second pipeline is closed, the water conveyed by the first pipeline is guided into the first water inlet through the driving assembly, the double-channel desalination assembly is used for purifying the water flowing in from the first water inlet to obtain concentrated water and purified water, the concentrated water flows out through the concentrated water outlet, and the purified water is guided into the pressure water storage tank through the first water outlet and the first valve assembly;

when voltage in the opposite direction is applied to the single-channel desalination assembly, the purified water in the pressure water storage tank is guided to the heating assembly through the fourth valve assembly to be heated to obtain hot purified water, the hot purified water is guided into the single-channel desalination assembly through the third valve assembly and the second water outlet, the hot purified water flowing in through the second water outlet cleans or regenerates the single-channel desalination assembly to obtain wastewater, and the wastewater is guided into the third pipeline through the second water inlet and the second valve assembly.

Illustratively, the single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge.

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, when a reverse voltage is applied to the single-channel desalination assembly, the purified water exiting through the first water outlet is directed in pulses through the first valve assembly and the third valve assembly to the second water outlet.

Illustratively, when a reverse voltage is applied to the single-channel desalination assembly, the purified water flowing out of the first water outlet is guided to the heating assembly through the first valve assembly to be heated, so as to obtain hot purified water, and the hot purified water is guided to the second water outlet in a pulse mode through the third valve assembly.

Illustratively, the pipeline system further comprises a pre-filter assembly positioned between the first pipeline and the first water inlet, wherein the pre-filter assembly comprises 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 household water purifying device further comprises a control component, and the control component applies a reverse voltage to the single-channel desalination component when the accumulated water purifying time of the single-channel desalination component reaches a first preset time.

Illustratively, the household water purifying device further comprises a conductivity acquisition component, the control component is connected with the conductivity acquisition component, and the conductivity acquisition component is positioned between the second water outlet of the single-channel desalination component and the second pipeline and is 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 applying a voltage in the opposite direction to the single-channel desalination component when the conductivity does not reach the target conductivity.

Illustratively, the control module is further configured to apply a voltage in a forward direction to the single channel desalination module when a duration of applying a voltage in a reverse direction to the single channel desalination module reaches a second predetermined duration.

For example, the water outlet direction of the second pipeline is connected with a plurality of water outlet pipelines, and at least one water outlet pipeline is provided with a heating component.

The application discloses domestic purifier includes: the desalination assembly comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet to obtain purified water, and the purified water flows out from the first water outlet; the single-channel desalting component comprises a second water inlet and a second water outlet, and when positive voltage is applied to the single-channel desalting component, the single-channel desalting component purifies the water flowing in from the second water inlet, and the treated water flows out from the second water outlet; 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 first water outlet and/or the second water outlet; the pipeline system further comprises a third pipeline, a fourth pipeline, a first valve assembly, a second valve assembly and a third valve assembly, when voltage in the opposite direction is applied to the single-channel desalination assembly, the purified water flowing out of the first water outlet is guided to the heating assembly arranged on the fourth pipeline through the first valve assembly to be heated to obtain hot purified water, the hot purified water is guided into the second water outlet through the third valve assembly, the hot purified water flowing in through the second water outlet cleans or regenerates the single-channel desalination assembly to obtain waste water, and the waste water is guided into the third pipeline through the second water inlet and the second valve assembly. Purified water generated by the desalination component in the water purification process is heated and then reversely conveyed to the single-channel desalination component for regeneration, so that the regeneration efficiency of the single-channel desalination component can be improved, and the scaling risk can be reduced.

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 diagram of an embodiment of a domestic water purification apparatus;

FIG. 5 is a schematic view showing the connection relationship of the parts in the household water purifying apparatus;

fig. 6 is a schematic structural diagram of another embodiment of a household water purifying device.

Reference numerals: 100. a desalination assembly; 110. a first water inlet; 120. a first water outlet; 130. a concentrated 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 third pipeline; 340. a fourth pipeline; 350. a heating assembly; 360. a pressure water storage tank; 400. a first valve assembly; 410. a first valve; 420. a second valve; 430. a third valve; 500. a second valve component; 510. a fourth valve; 520. a fifth valve; 530. a sixth valve; 600. a third valve assembly; 610. a seventh valve; 620. an eighth valve; 630. a ninth valve; 370. a fourth valve assembly; 380. a drive assembly; 10. a conductivity acquisition component; 700. a power supply assembly; 800. 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, the household water purification apparatus includes a desalination module 100, a single-channel desalination module 200, and a pipeline system 300.

Specifically, as shown in fig. 1, the desalination assembly 100 includes a first water inlet 110 and a first water outlet 120, and the desalination assembly 100 performs a purification treatment on water flowing from the first water inlet 110 to obtain purified water, and the purified water flows out through the first water outlet 120.

Illustratively, the desalination assembly 100 comprises one of a single-channel desalination assembly and a dual-channel desalination assembly, wherein if the desalination assembly is a dual-channel desalination assembly, the dual-channel desalination assembly further comprises a concentrated water outlet, and the dual-channel desalination assembly purifies water flowing in from the first water inlet 110 to obtain concentrated water and purified water, the purified water flows out through the first water outlet 120, and the concentrated water flows out through the concentrated water outlet. 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 dual-channel desalination assembly uses at least one water inlet and two water outlets when purifying the water flowing through the dual-channel desalination assembly, and is therefore called a dual-channel desalination assembly.

Illustratively, the dual-channel desalination assembly comprises one of a reverse osmosis desalination assembly, an electrodialysis desalination assembly, and a reverse electrodialysis desalination assembly.

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 when a voltage in a positive direction is applied to the single-channel desalination module 200, the single-channel desalination module 200 performs purification treatment on water flowing in from the second water inlet 210, and the treated water flows out from the second water outlet 220.

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 210 and the second water 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 electrodes 910 include 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 piping system 300 includes a first pipe 310, a second pipe 320, a third pipe 330, a fourth pipe 340, a first valve assembly 400, a second valve assembly 500, and a third valve assembly 600, the first pipe 310 is used for sending water to the first water inlet 110 or is also used for sending water to the first water inlet 110 and the second water inlet 210 simultaneously, the second pipe 320 outputs purified water flowing out through the first water outlet 210 and/or the second water outlet 220, and the heating assembly 350 is located between the first valve assembly 400 and the third valve assembly 600.

In some embodiments, as shown in fig. 1, when a reverse voltage is applied to the single channel desalination assembly 200, the clean water flowing out through the first water outlet 120 is guided to the heating assembly 350 disposed in the fourth pipeline 340 through the first valve assembly 400 to be heated, so as to obtain hot clean water, the hot clean water is guided to the second water outlet 220 through the third valve assembly 600, the hot clean water flowing in through the second water outlet 220 cleans or regenerates the single channel desalination assembly 200, so as to obtain waste water, and the waste water is guided to the third pipeline 330 through the second water inlet 210 and the second valve assembly 500. Purified water generated by the desalination component in the water purification process is heated and then reversely conveyed to the single-channel desalination component for regeneration, so that the regeneration efficiency of the single-channel desalination component can be improved, and the scaling risk can be reduced.

In some embodiments, the desalination module 100 is a dual-channel desalination module, as shown in fig. 4, the fourth pipeline 340 is further provided with a pressurized water storage tank 360 and a fourth valve assembly 370, the first pipeline 310 is provided with a driving assembly 380, when the water outlet of the second pipeline 320 is closed, the driving assembly 380 guides the water conveyed by the first pipeline into the first water inlet 110, the dual-channel desalination module 100 purifies the water flowing from the first water inlet 110 to obtain concentrated water and purified water, the concentrated water flows out through the concentrated water outlet 130, and the purified water is guided into the pressurized water storage tank 360 through the first water outlet 120 and the first valve assembly 400. The driving pressure of the driving assembly 380 is greater than the air pressure inside the pressurized water tank 360, so that the purified water can be introduced into the pressurized water tank 360 through the first water outlet 120 and the first valve assembly 400. By enabling the dual-channel desalination assembly 100 to produce purified water when the domestic water purification device is not producing water, and storing the purified water in the pressurized water storage tank 360, the single-channel desalination assembly 200 can be regenerated later.

When a reverse voltage is applied to the single channel desalination module 200, the clean water in the pressurized water storage tank 360 is guided to the heating module 350 through the fourth valve assembly 370 to be heated, so as to obtain hot clean water, the hot clean water is guided to the single channel desalination module 200 through the third valve assembly 600 and the second water outlet 220, the hot clean water flowing in through the second water outlet 220 cleans or regenerates the single channel desalination module 200, so as to obtain waste water, and the waste water is guided to the third pipeline 330 through the second water inlet 210 and the second valve assembly 500. Wherein the driving assembly 380 includes any one of a piezoelectric pump and a booster pump.

Illustratively, the control unit is connected to the fourth valve assembly 370, when a reverse voltage is applied to the single channel desalination unit 200, the clean water in the pressurized water storage tank 360 flows out from the pressurized water storage tank 360 to the fourth valve assembly due to the pressure, and then the control unit controls the fourth valve assembly 370 to open, so that the clean water flowing out from the pressurized water storage tank 360 can flow to the heating unit 350, and the clean water is heated by the heating unit 350. The purified water in the pressure water storage tank 360 can be led out through the pressure water storage tank 360 without using a driving component.

In some embodiments, when a reverse voltage is applied to the single-channel desalination module 200, the water outlet of the first pipeline 310 is closed, the pipeline system 300 is pressurized by the driving module 380, so that the purified water in the pressurized water storage tank 360 can flow out from the pressurized water storage tank 360 to the fourth valve assembly, and then the control module controls the fourth valve assembly 370 to be opened, so that the purified water flowing out from the pressurized water storage tank 360 can flow to the heating module 350, and the purified water is heated by the heating module 350.

In some embodiments, a liquid level meter is disposed in the pressure water storage tank 360, and is used for collecting a level value of the pressure water storage tank 360, and the liquid level meter is connected to the control component, and when purified water is introduced into the pressure water storage tank 360 through the first water outlet 120 and the first valve component 400, the control component is used for obtaining the level value of the pressure water storage tank 360 collected by the liquid level meter, and when the level value reaches a first set value, the first valve component 400 is controlled to be closed, and the dual-flow-channel desalination component 100 is controlled to stop working, so that the purified water flowing out through the first water outlet 120 can not be introduced into the pressure water storage tank 360.

In some embodiments, the control module is further configured to obtain a level value of the pressurized water storage tank 360 collected by the liquid level meter, and when the level value reaches a second set value and the water outlet of the second pipeline 320 is closed, control the driving module 380 to guide the water conveyed by the first pipeline into the first water inlet 110, perform a purification treatment on the water flowing from the first water inlet 110 by the dual-channel desalination module 100 to obtain concentrated water and purified water, flow out the concentrated water through the concentrated water outlet 130, and control the opening or closing of the valves of the first valve assembly 400, so that the purified water can be guided into the pressurized water storage tank 360 through the first water outlet 120 and the first valve assembly 400.

In some embodiments, as shown in fig. 5, the domestic water purification apparatus further comprises a power supply module 700 and a control module 800, the power supply module 700 is connected to the single channel desalination module 200, the power supply module 700 is used for supplying the single channel desalination module 200, the power supply module 700 can adjust the magnitude and direction of the voltage supplied to the single channel desalination module 200, the single channel desalination module 200 purifies water when a voltage in a forward direction is applied to the single channel desalination module 200, and the water flowing into the single channel desalination module 200 regenerates the single channel desalination module 200 when a voltage in a reverse direction is applied to the single channel desalination module 200.

In some embodiments, when a positive voltage is applied to the single channel desalination module 200, the purified water flowing out of the first water outlet 120 of the desalination module 100 is introduced into the second water inlet 210 of the single channel desalination module 200 through the first valve assembly 400 and the second valve assembly 500, the single channel desalination module 200 performs a secondary purification treatment on the purified water flowing in from the second water inlet 210, the secondary purified water flows out through the second water outlet 220, and the purified water flowing out through the second water outlet 220 is introduced into the second pipeline 320 through the third valve assembly 600. Through leading-in single current way desalination subassembly 200 with the water purification, carry out secondary purification by single current way desalination subassembly 200 to the water purification, can improve domestic purifier's water purification effect, improve quality of water.

In some embodiments, when a positive voltage is applied to the single channel desalination module 200, the first pipeline 310 simultaneously supplies water to the first water inlet 110 and the second valve assembly 500 of the desalination module 100, the purified water flowing out through the first water outlet 120 of the desalination module 100 is introduced into the second pipeline 320 through the first valve assembly 400 and the third valve assembly 600, the water supplied from the first pipeline 310 is introduced into the single channel desalination module 200 through the second valve assembly 500 and the second water inlet 210, the single channel desalination module 200 purifies the purified water flowing in from the second water inlet 210, the purified water flows out through the second water outlet 220, and the purified water flowing out through the second water outlet 220 is introduced into the second pipeline 320 through the third valve assembly 600. The desalination component 100 and the single-channel desalination component 200 can simultaneously produce water and combine a water outlet which is conveyed to the household water purifying device, so that the water production quantity of the household water purifying device can be improved.

In some embodiments, if the desalination assembly 100 is a dual-channel desalination assembly, upon application of a positive voltage to the single-channel desalination assembly 200, the first pipeline 310 sends water to the first water inlet 110 of the desalination assembly 100, the desalination assembly 100 performs purification treatment on the water flowing from the first water inlet 110 to obtain concentrated water and purified water, the purified water flows out through the first water outlet 120, the concentrated water flows out through the concentrated water outlet, the purified water flowing out through the first water outlet 120 of the desalination module 100 is directed into the second pipeline 320 through the first valve assembly 400 and the third valve assembly 600, and the concentrated water flowing out through the concentrated water outlet is introduced into the second water inlet 210 through the second valve assembly 500, the single channel desalination assembly 200 performs purification treatment on the concentrated 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, and the purified water flowing out through the second water outlet 220 is introduced into the second pipe 320 through the third valve assembly 600. The concentrated water produced by the desalination module 100 is directed into the single channel desalination module 200 and purified by the single channel desalination module 200, thereby increasing the water utilization.

Illustratively, the first valve assembly 400, the second valve assembly 500, and the third valve assembly 600 are three-way valves, the first valve assembly 400 includes a first valve 410, a second valve 420, and a third valve 430, the second valve assembly 500 includes a fourth valve 510, a fifth valve 520, and a sixth valve 530, the third valve assembly 600 includes a seventh valve 610, an eighth valve 620, and a ninth valve 630, when a voltage is applied to the single-channel desalination assembly 200 in a reverse direction, the clean water flowing out of the first water outlet 120 is directed to the heating assembly 350 through the first valve 410 and the third valve 430 to be heated to obtain hot clean water, the hot clean water is directed to the second water outlet 220 through the ninth valve 630 and the seventh valve 610, the hot clean water flowing into the single-channel desalination assembly 200 washes or regenerates the single-channel desalination assembly 200 to obtain waste water, and the waste water flows out through the second water inlet 210, the wastewater flowing out through the second water inlet 210 is introduced into the third pipe 330 through the fifth valve 520 and the sixth valve 530.

Illustratively, when a voltage in a positive direction is applied to the single channel desalination module 200, the purified water flowing out of the first water outlet 120 of the desalination module 100 is introduced into the second water inlet 210 of the single channel desalination module 200 through the first valve 410, the second valve 420, the fourth valve 510 and the fifth valve 520, the single channel desalination module 200 performs a secondary purification treatment on the purified water flowing in from the second water inlet 210, and the secondarily purified water flows out through the second water outlet 220 and is introduced into the second pipeline 320 through the seventh valve 610 and the eighth valve 620.

In some embodiments, as shown in fig. 5, the control assembly 800 is connected to the first valve assembly 400, the second valve assembly 500 and the third valve assembly 600, the control assembly 800 can control the opening and closing of the valves of the first valve assembly 400, the second valve assembly 500 and the third valve assembly 600, such that when a voltage is applied to the single channel desalination assembly 200 in a reverse direction, the purified water flowing out from the first water outlet 120 can be guided to the heating assembly 350 through the first valve assembly 400 to be heated, thereby obtaining hot purified water, the hot purified water can be guided to the second water outlet 220 through the third valve assembly 600, the hot purified water flowing in from the second water outlet 220 can clean or regenerate the single channel desalination assembly 200, thereby obtaining waste water, and the waste water can be guided to the third pipeline 330 through the second water inlet 210 and the second valve assembly 500.

Illustratively, the opening and closing of the valves of the first valve assembly 400, the second valve assembly 500 and the third valve assembly 600 can be controlled by the control assembly 800, such that when a voltage in a positive direction is applied to the single channel desalination assembly 200, the purified water flowing out from the first water outlet 120 of the desalination assembly 100 is introduced into the second water inlet 210 of the single channel desalination assembly 200 through the first valve assembly 400 and the second valve assembly 500, the single channel desalination assembly 200 performs a secondary purification treatment on the purified water flowing in from the second water inlet 210, the secondary purified water flows out through the second water outlet 220, and the purified water flowing out from the second water outlet 220 is introduced into the second pipeline 320 through the third valve assembly 600.

In some embodiments, when a reverse voltage is applied to the single-channel desalination module 200, the purified water flowing out through the first water outlet 120 is guided to the heating module 350 through the first valve assembly 400 to be heated, so as to obtain hot purified water, and the hot purified water is guided to the second water outlet 220 through the third valve assembly 600 in a pulse manner. Since the higher the temperature of the water, the faster the electromigration speed of the ions in the water, by introducing the hot purified water into the second water inlet 210 in a pulsed manner, the salt substances in the single channel desalination module 200 can be more easily washed away by the hot purified water, thereby facilitating the regeneration of the single channel desalination module 200 and improving the regeneration efficiency and regeneration effect.

Illustratively, as shown in fig. 5, the second valve assembly 500 and the third valve assembly 600 are connected to a control assembly 800, and the control assembly 800 is used for controlling the opening and closing intervals of the second valve assembly 500 or the third valve assembly 600, so as to realize the introduction of the hot purified water into the second water outlet 220 in a pulse manner. The time interval between the opening and closing of the second valve assembly 500 or the third valve assembly 600 by the control assembly 800 may be set according to actual conditions, for example, the time interval is 2 seconds.

In some embodiments, the control module 800 controls the power supply module 700 to apply a voltage in a reverse direction to the single channel desalination module 200, and alternately controls the power supply module 700 to apply a voltage to the single channel desalination module 200 to a first voltage and a second voltage at intervals of a preset time, that is, controls the power supply module 700 to apply a voltage to the single channel desalination module 200 to a first voltage, and after the preset time, controls the power supply module 700 to apply a voltage to the single channel desalination module 200 to a second voltage, and after a preset time, controls the power supply module 700 to apply a voltage to the single channel desalination module 200 to a first voltage, and so on until the regeneration is completed. Wherein the first voltage is less than the second voltage. By alternately controlling the voltage applied by the power module 700 to the single channel desalination module 200, the regeneration efficiency of the single channel desalination module 200 can be improved.

In some embodiments, the pipe system 300 includes a pre-filter assembly located between the first pipe 310 and the first water inlet 110. The pre-filter assembly performs a certain purification treatment on the water entering the desalination assembly 100, for example, removing substances which may contain particle impurities, residual chlorine and the like in the water, reducing the workload and consumption of the desalination assembly 100, and prolonging the regeneration period and the service life of the desalination assembly.

Illustratively, the pre-filter assembly 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 household water purifying apparatus further comprises a control unit 800, and the control unit 800 applies a reverse voltage to the single channel desalination unit when the cumulative water purification time period of the single channel desalination unit 200 reaches a first preset time period. The accumulated water purification time duration is the accumulated water purification time duration of the single channel desalination assembly 200, and after the single channel desalination assembly 200 is regenerated, the accumulated water purification time duration is recalculated, and the first preset time duration may be set according to an actual situation, for example, the first preset time duration is 30 days. By automatically switching the direction of the voltage applied to the single-channel desalination module 200 when the cumulative clean water duration of the single-channel desalination module 200 reaches a set value, the automatic regeneration of the single-channel desalination module 200 is achieved.

In some embodiments, the control module 800 is further configured to apply a voltage in a forward direction to the single channel desalination module 200 when the duration of applying a voltage in a reverse direction to the single channel desalination module 200 reaches a second predetermined duration. The second preset time period may be set according to actual conditions, for example, the second preset time period is 30 minutes or 60 minutes. When the duration of applying the voltage in the reverse direction to the single-channel desalination assembly 200 reaches the set value, the voltage in the forward direction is applied to the single-channel desalination assembly 200, so that the single-channel desalination assembly 200 can continue to purify water, the whole process does not need manual operation of a user, and the user experience is greatly improved.

In some embodiments, as shown in fig. 6, the household water purifying apparatus further comprises a conductivity acquisition assembly 10, the control assembly 800 is connected to the conductivity acquisition assembly 10, the conductivity acquisition assembly 10 is located between the second water outlet 220 of the single channel desalination assembly 200 and the second pipeline 320, and is used for acquiring the conductivity of the collected water; a control assembly 800 for acquiring the conductivity acquired by the conductivity acquisition assembly 10 and applying a voltage in the opposite direction to the single channel desalination assembly 200 when the conductivity does not reach the target conductivity. When the water quality of the domestic water purification device does not reach a set value, the direction of applying voltage to the single-channel desalination assembly 200 can be automatically switched, and the automatic regeneration of the single-channel desalination assembly 200 is realized.

The quality of water at the corresponding location can be detected by the conductivity acquisition assembly 10. 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 700 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 supplied by the power supply assembly 700 is adjusted, thereby changing the conductivity of the water.

Illustratively, the control assembly 800 is further configured to obtain the conductivity collected by the conductivity collection assembly 10 and adjust the voltage of the electrically driven single channel desalination assembly 200 to adjust the conductivity of the water when the conductivity does not reach the target conductivity.

For example, the target conductivity may be stored in the memory of the control assembly 800 in advance, or the control assembly 800 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.

For example, 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 water quality.

In some embodiments, the control assembly 800 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 800 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 conductivity acquisition assembly 10 reaches the target conductivity. When the conductivity reaches the target conductivity, the control assembly 800 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 water outlet direction of the second pipe 320 is connected to a plurality of water outlet pipes, and at least one of the water outlet pipes is provided with a heating element.

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.

The domestic purifier that the above-mentioned embodiment of this specification provided includes: the desalination assembly comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet to obtain purified water, and the purified water flows out from the first water outlet; the single-channel desalting component comprises a second water inlet and a second water outlet, and when positive voltage is applied to the single-channel desalting component, the single-channel desalting component purifies the water flowing in from the second water inlet, and the treated water flows out from the second water outlet; 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 first water outlet and/or the second water outlet; the pipeline system further comprises a third pipeline, a fourth pipeline, a first valve assembly, a second valve assembly and a third valve assembly, when voltage in the opposite direction is applied to the single-channel desalination assembly, the purified water flowing out of the first water outlet is guided to the heating assembly arranged on the fourth pipeline through the first valve assembly to be heated to obtain hot purified water, the hot purified water is guided into the second water outlet through the third valve assembly, the hot purified water flowing in through the second water outlet cleans or regenerates the single-channel desalination assembly to obtain waste water, and the waste water is guided into the third pipeline through the second water inlet and the second valve assembly. Purified water generated by the desalination component in the water purification process is heated and then reversely conveyed to the single-channel desalination component for regeneration, so that the regeneration efficiency of the single-channel desalination component can be improved, and the scaling risk can be reduced.

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 said desalination module comprises one of a single-channel desalination module and a dual-channel desalination module, wherein if said desalination module is a dual-channel desalination module, said dual-channel desalination module further comprises a concentrate outlet, said dual-channel desalination module purifying water flowing in from said first water inlet to obtain concentrated water and purified water, said purified water flowing out through said first water outlet, said concentrated water flowing out through said concentrate outlet.

3. The domestic water purifying apparatus according to claim 2, wherein the fourth pipeline further comprises a pressurized water storage tank and a fourth valve assembly, the first pipeline comprises a driving assembly, when the water outlet of the second pipeline is closed, the driving assembly guides the water conveyed by the first pipeline into the first water inlet, the double-channel desalination assembly purifies the water flowing from the first water inlet to obtain concentrated water and purified water, the concentrated water flows out through the concentrated water outlet, and the purified water is guided into the pressurized water storage tank through the first water outlet and the first valve assembly;

4. 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.

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

6. The domestic water purification apparatus of claim 1, wherein when a voltage in a reverse direction is applied to the single-channel desalination assembly, the purified water flowing out through the first water outlet is directed to the heating assembly through the first valve assembly to be heated, thereby obtaining heated purified water, and the heated purified water is directed to the second water outlet in a pulsed manner through the third valve assembly.

7. The domestic water purification apparatus of claim 1, wherein said pipe system further comprises a pre-filter assembly located between said first pipe and said first water inlet, said pre-filter assembly comprising a PP cotton filter element and/or an activated carbon filter element.

8. The domestic water purification device of claim 7, wherein the activated carbon filter element comprises a scale inhibiting activated carbon filter element and a non-scale inhibiting activated carbon filter element.

9. The domestic water purification apparatus of any one of claims 1 to 8, further comprising a control module for applying a voltage in a reverse direction to the single channel desalination module when the cumulative water purification time period of the single channel desalination module reaches a first predetermined time period.

10. The domestic water purification apparatus of claim 9, further comprising a conductivity acquisition component, wherein the control component is connected to the conductivity acquisition component, and the conductivity acquisition component is located between the second water outlet of the single channel desalination component and the second pipeline, and is configured to acquire the conductivity of the collected water;

11. The domestic water purification apparatus of claim 9, wherein the control module is further configured to apply a positive voltage to the single channel desalination module when the duration of the reverse voltage applied to the single channel desalination module reaches a second predetermined duration.

12. The domestic water purification apparatus of any one of claims 1 to 8, wherein the outlet direction of said second pipeline is connected to a plurality of outlet pipelines, and at least one of said outlet pipelines is provided with a heating element.