CN113402082A

Movatterモバイル変換

Info

Publication number: CN113402082A
Application number: CN202010183988.5A
Authority: CN
Inventors: 陈小平; 吕苏; 晏博; 董红晨; 陈文彬; 黄剑波; 郝楠
Original assignee: Foshan Viomi Electrical Technology Co Ltd
Current assignee: Foshan Viomi Electrical Technology Co Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2021-09-17

Abstract

Translated fromChinese

本申请公开了一种家用净水装置，包括并联设置的单流道脱盐组件和双流道脱盐组件，单流道脱盐组件包括第一端口和第二端口，双流道脱盐组件包括第一进水口和第一出水口；管路系统，包括第一管路、第二管路和第三管路，第一管路连接第一端口和第一进水口，第二管路连接第二端口和第一出水口，第三管路连接第一端口；双流道脱盐组件对经第一进水口流入的水进行净化处理，产生的纯水经第一出水口、第二端口流入单流道脱盐组件，单流道脱盐组件中的盐类物质由流入的纯水冲洗后经第一端口流入第三管路。通过双流道脱盐组件净化处理产生的纯水对单流道脱盐组件进行冲洗再生，减少了单流道脱盐组件再生时的结垢风险，从而保障制取的纯水的水质。

The present application discloses a household water purification device, comprising a single-flow channel desalination component and a double-flow channel desalination component arranged in parallel, the single-flow channel desalination component includes a first port and a second port, and the dual-flow channel desalination component includes a first water inlet and The first water outlet; the pipeline system includes a first pipeline, a second pipeline and a third pipeline, the first pipeline connects the first port and the first water inlet, and the second pipeline connects the second port and the first pipeline The water outlet, the third pipeline is connected to the first port; the double-flow channel desalination component purifies the water flowing in through the first water inlet, and the produced pure water flows into the single-flow channel desalination component through the first water outlet and the second port. The salt substances in the flow channel desalination component are flushed by the inflowing pure water and flow into the third pipeline through the first port. The single-channel desalination component is washed and regenerated by the pure water produced by the purification treatment of the double-channel desalination component, which reduces the risk of scaling during the regeneration of the single-channel desalination component, thereby ensuring the quality of the pure water produced.

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 usually treated by a chlorination method, 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 reverse osmosis membrane is often used to purify tap water to prepare pure water which can be directly drunk. The reverse osmosis membrane can effectively prevent substances such as bacteria, viruses, water scales, salt ions and the like and only allows water molecules to pass through, thereby ensuring the safety of water. After a period of time, the effect of purifying tap water by the reverse osmosis membrane is weakened, and the quality of the prepared pure water is poor.

Disclosure of Invention

The embodiment of the application provides a domestic purifier adopts parallelly connected single-flow-channel desalination subassembly and double-flow-channel desalination subassembly, and the regeneration is washed to single-flow-channel desalination subassembly through the water that double-flow-channel desalination subassembly carried out after the purification treatment, has prolonged single-flow-channel desalination subassembly's life, has ensured the quality of water of the pure water of preparing.

The application provides a domestic purifier, domestic purifier includes:

a single-channel desalination assembly and a dual-channel desalination assembly arranged in parallel, the single-channel desalination assembly comprising a first port and a second port, the dual-channel desalination assembly comprising a first water inlet and a first water outlet, wherein the first port is connected in parallel with the first water inlet and the second port is connected in parallel with the first water outlet;

the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline is connected with the first port and the first water inlet, the second pipeline is connected with the second port and the first water outlet, and the third pipeline is connected with the first port;

the double-flow-channel desalination assembly purifies the water flowing in through the first water inlet, the generated pure water flows into the single-flow-channel desalination assembly through the first water outlet and the second port, and the saline substances in the single-flow-channel desalination assembly flow into the third pipeline through the first port after being flushed by the flowing pure water.

Illustratively, the piping system further comprises a filter assembly disposed on a side of the first port of the single-channel desalination assembly and/or a filter assembly disposed on a side of the second port of the single-channel desalination assembly.

Illustratively, the filtration assembly comprises a physical entrapment function filter element and/or a physical adsorption function filter element; the physical interception function filter element comprises at least one of a microfiltration membrane and an ultrafiltration membrane; the physical adsorption functional filter element comprises at least one of activated carbon particles and activated carbon rods.

Illustratively, the physical entrapment function filter element has a filtration accuracy in the range of 10 nanometers to 1 micron.

Illustratively, the physical entrapment function filter element is located a distance from the single flow channel desalination assembly that is closer to the physical adsorption function filter element than the single flow channel desalination assembly.

Illustratively, the filter assembly is disposed between the second port and the first outlet; when the single-channel desalination assembly is powered off or reverse voltage is applied, the pure water flowing out of the first water outlet flows into the single-channel desalination assembly through the second port after being filtered by the filtering assembly, and salt substances in the single-channel desalination assembly are flushed to the third pipeline.

Illustratively, when the single-channel desalination assembly is powered off or a reverse voltage is applied, the pure water flowing out of the first water outlet reversely flows through the physical adsorption function filter element, reversely flushes the physical interception function filter element, and then flows into the single-channel desalination assembly through the second port, so as to flush the salt substances in the single-channel desalination assembly to the third pipeline.

Exemplarily, the pipeline system further comprises a waterway switching device, and the waterway switching device is connected with the first port;

when positive voltage is applied to the single-channel desalination assembly and the waterway switching device is tangentially connected to the first pipeline, purifying water flowing in through the first pipeline and the first port, and enabling the treated water to flow out to the second pipeline through the second port;

when the single-channel desalination assembly is powered off or reverse voltage is applied and the waterway switching device is switched tangentially to the third pipeline, saline substances in the single-channel desalination assembly are flushed to the third pipeline by water flowing in through the first water outlet and the second port.

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, the dual-channel desalination assembly comprises at least one of a reverse osmosis membrane filter cartridge, a nanofiltration membrane filter cartridge, and an electrodialysis membrane filter cartridge.

Illustratively, the household water purifying device further comprises a power supply assembly and a control assembly, wherein when the current time is preset time, the control assembly controls the power supply assembly to cut off power supply to the single-channel desalting assembly or applies reverse voltage to the single-channel desalting assembly, and simultaneously controls the waterway switching device to tangentially connect to the third pipeline.

Illustratively, the pipeline system further comprises a filter assembly arranged on the first pipeline and/or a filter assembly arranged on the second pipeline.

Illustratively, the pipeline system further comprises a conductivity detection assembly arranged on the first pipeline and/or a conductivity detection assembly arranged on the second pipeline.

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 unit.

The application discloses domestic purifier includes: the system comprises a single-channel desalting component and a double-channel desalting component which are arranged in parallel, wherein the single-channel desalting component comprises a first port and a second port; the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, wherein the first pipeline is connected with a first port and a first water inlet, the second pipeline is connected with a second port and a first water outlet, and the third pipeline is connected with the first port; the double-flow-channel desalting component purifies the water flowing in through the first water inlet, the generated pure water flows into the single-flow-channel desalting component through the first water outlet and the second port, and salt substances in the single-flow-channel desalting component flow into the third pipeline through the first port after being washed by the flowing pure water. The pure water generated by the purification treatment of the double-flow-channel desalting component washes and regenerates the single-flow-channel desalting component, so that the scaling risk during the regeneration of the single-flow-channel desalting component is reduced, and the water quality of the prepared pure water is guaranteed.

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 structural diagram of an embodiment of a household water purifying apparatus;

FIG. 3 is a schematic diagram of a bipolar membrane electrodeionization cartridge desalination process;

FIG. 4 is a schematic diagram of the bipolar membrane electrodeionization filter regeneration process;

fig. 5 is a schematic view of the connection relationship of the parts in the household water purifying device.

Reference numerals: 100. a single-channel desalination assembly; 110. a first port; 120. a second port; 200. a dual-channel desalination assembly; 210. a first water inlet; 220. a first water outlet; 300. a piping system; 310. a first pipeline; 320. a second pipeline; 330. a third pipeline; 340. a filter assembly; 350. a waterway switching device; 410. a control component; 420. a power supply assembly;

10. a conductivity detection component; 20. a drive assembly; 30. a flow detection component; 40. a temperature detection assembly;

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 purifying apparatus includes a single-channel desalination module 100 and a double-channel desalination module 200, which are disposed in parallel, and apipeline system 300.

As shown in fig. 1, the singlechannel desalination module 100 includes afirst port 110 and asecond port 120, and when a positive voltage is applied, the water flowing into thefirst port 110 is purified, and the treated water flows out through thesecond port 120. Dual-channel desalination assembly 200 includes afirst water inlet 210 and afirst water outlet 220, withfirst port 110 being connected in parallel withfirst water inlet 210, andsecond port 120 being connected in parallel withfirst water outlet 220. When the driving pressure is applied, the water flowing in from thefirst water inlet 210 is purified, and the treated water flows out through thefirst water outlet 220.

Specifically, thepipe system 300 includes afirst pipe 310, asecond pipe 320 and athird pipe 330, thefirst pipe 310 connects thefirst port 110 and thefirst water inlet 210, thesecond pipe 320 connects thesecond port 120 and thefirst water outlet 220, and thethird pipe 330 connects thefirst port 110.

First conduit 310 is used to deliver water tofirst port 110 andfirst water inlet 210, andsecond conduit 320 is used to output pure water produced by the purification process performed by single-channel desalination assembly 100 and dual-channel desalination assembly 200.

When the single-channel desalination module 100 is flushed and regenerated, the dual-channel desalination module 200 purifies the water flowing in through thefirst water inlet 210, the generated pure water flows into the single-channel desalination module 100 through thefirst water outlet 220 and thesecond port 120 of the single-channel desalination module 100, the single-channel desalination module 100 is powered off or is applied with a reverse voltage, and the salt substances in the single-channel desalination module 100 flow into thethird pipeline 330 through thefirst port 110 after being flushed by the pure water flowing in from thesecond port 120.

For example, a first solenoid valve may be disposed in thesecond line 320, a second solenoid valve may be disposed in thethird line 330, and a third solenoid valve may be disposed on the side of thefirst port 110 of the parallel branch where the singlechannel desalination assembly 100 is located. When water is produced, forward voltage is applied to the single-channel desalination assembly 100, the first electromagnetic valve and the third electromagnetic valve are opened, water input by thefirst pipeline 310 flows into the single-channel desalination assembly 100 through the third electromagnetic valve, the single-channel desalination assembly 100 purifies the water, and the treated pure water is output to thesecond pipeline 320 through thesecond port 120 and the first electromagnetic valve. Meanwhile, water input by thefirst pipeline 310 flows into the dual-channel desalination assembly 200 through thefirst water inlet 210, the dual-channel desalination assembly 200 purifies the water, and the treated pure water is output to thesecond pipeline 320 through thefirst water outlet 220 and the first electromagnetic valve.

When the single-channel desalination assembly 100 is flushed and regenerated, the single-channel desalination assembly 100 is powered off or reverse voltage is applied, the first solenoid valve is closed, the second solenoid valve and the third solenoid valve are opened, water input from thefirst pipeline 310 flows into the double-channel desalination assembly 200 through thefirst water inlet 210, the double-channel desalination assembly 200 purifies the water, the treated pure water flows into the single-channel desalination assembly 100 through thefirst water outlet 220 and thesecond port 120, and salt substances in the single-channel desalination assembly 100 are flushed by the pure water flowing from thesecond port 120 and then flow into thethird pipeline 330 through thefirst port 110 and the second solenoid valve.

The double-channel desalination assembly 200 is used for purifying water, the generated pure water flows into the single-channel desalination assembly 100, and the single-channel desalination assembly 100 is washed and regenerated, so that compared with the method of washing and regenerating with tap water, the scaling risk of the single-channel desalination assembly 100 during regeneration is reduced, the service life of the single-channel desalination assembly 100 is prolonged, and the water quality of the prepared pure water is improved.

In some embodiments, as shown in fig. 2, thepiping system 300 further comprises afilter assembly 340 disposed on the parallel branch of the singlechannel desalination assembly 100, wherein thefilter assembly 340 is disposed on either thefirst port 110 side of the singlechannel desalination assembly 100 or thesecond port 120 side of the singlechannel desalination assembly 100.

When thefiltering component 340 is disposed at one side of thefirst port 110 of the singlechannel desalination component 100, in the process of water purification of the singlechannel desalination component 100, the water output from thefirst pipeline 310 is filtered by thefiltering component 340 and then flows into the singlechannel desalination component 100 through thefirst port 110, and the singlechannel desalination component 100 purifies the inflow water.

When thefiltering component 340 is disposed at one side of thesecond port 120 of the singlechannel desalination component 100, in the process of water purification of the singlechannel desalination component 100, the water output from thefirst pipeline 310 flows into the singlechannel desalination component 100 through thefirst port 110, the singlechannel desalination component 100 purifies the inflow water, and the treated water flows into thesecond pipeline 320 after being filtered by thefiltering component 340.

Illustratively, thefilter assembly 340 can include a physical entrapment function filter element and/or a physical adsorption function filter element. The physical interception function filter element comprises at least one of a microfiltration membrane, an ultrafiltration membrane and a PP cotton filter element, and the filtration precision of the physical interception function filter element is between 10 nanometers and 5 micrometers, preferably between 10 nanometers and 1 micrometer. The physical adsorption function filter element comprises at least one of activated carbon particles and activated carbon rods, and the removal rate of COD in water by the physical adsorption function filter element is more than 20%, preferably more than 50%.

In some embodiments, the filter assembly is disposed between thesecond port 120 and thefirst water outlet 220, i.e., on the side of thesecond port 120 of the singlechannel desalination assembly 100. When the single-channel desalination module 100 is de-energized or a reverse voltage is applied, pure water produced by the purified water in the dual-channel desalination module 200 flows through thefilter module 340, reversely flushes thefilter module 340, flows into the single-channel desalination module 100 through thesecond port 120, and flushes the salt in the single-channel desalination module 100 to thethird pipeline 330.

Illustratively, when thefilter assembly 340 includes a plurality of filter elements, such as a physical entrapment function filter element and a physical adsorption function filter element, the physical entrapment function filter element of the non-activated carbon type is located closer to the singlechannel desalination assembly 100 than the physical adsorption function filter element of the activated carbon type is located to the singlechannel desalination assembly 100, for example, the physical entrapment function filter element of the non-activated carbon type is located closest to thesecond port 120 of the singlechannel desalination assembly 100, and the physical adsorption function filter element of the activated carbon type is located furthest from the singlechannel desalination assembly 100, so that a small amount of residual chlorine generated by the singlechannel desalination assembly 100 can inhibit the physical entrapment function filter element, whereas if the physical adsorption function filter element of the activated carbon type is located closest to thesecond port 120 of the singlechannel desalination assembly 100, the residual chlorine generated by the singlechannel desalination assembly 100 is adsorbed by the physical adsorption function filter element of the activated carbon type, the function of bacteriostasis on the physical interception function filter core can not be achieved.

For example, thesecond port 120 of the single-channel desalination module 100 is sequentially connected to an ultrafiltration membrane and an activated carbon rod, and when the single-channel desalination module 100 is powered off or reverse voltage is applied, pure water generated by purifying water through the double-channel desalination module 200 reversely passes through physical adsorption function filter elements such as the activated carbon rod, reversely washes physical interception function filter elements such as the ultrafiltration membrane, and finally enters the single-channel desalination module 100 to wash and regenerate the single-channel desalination module 100, thereby reducing scaling risk when the single-channel desalination module 100 is regenerated.

The pure water generated by purifying the water through the double-channel desalination assembly 200 firstly passes through thefiltering assemblies 340 such as the ultrafiltration membrane and reversely washes thefiltering assemblies 340 such as the ultrafiltration membrane, can prolong the service life of thefiltering assemblies 340 such as the ultrafiltration membrane and then enters the single-channel desalination assembly 100 to wash and regenerate the single-channel desalination assembly 100, so that the scaling risk when the single-channel desalination assembly 100 is regenerated is reduced, the service life of the single-channel desalination assembly 100 is prolonged, and the water quality of the prepared pure water is ensured.

In some embodiments, as shown in fig. 2, thepiping system 300 further includes awaterway switch 350, wherein thewaterway switch 350 is connected to thefirst port 110.

Illustratively, thewaterway switching device 350 includes a tangential valve or a plurality of two-way solenoid valve sets, such as three-way valves, etc.

In the process of purifying water in the single-channel desalination module 100, a positive voltage is applied to the single-channel desalination module 100, thewaterway switching device 350 is tangentially connected to thefirst pipeline 310, water which is input from thefirst pipeline 310 and flows in through thefirst port 110 is purified, and the treated water flows out through thesecond port 120 to thesecond pipeline 320.

During the rinsing regeneration of the single-channel desalination module 100, the single-channel desalination module 100 is powered off or a reverse voltage is applied, thewaterway switching device 350 is switched tangentially to thethird pipeline 330, the dual-channel desalination module 200 performs water purification, the produced pure water flows into the single-channel desalination module 100 through thefirst water outlet 220 and thesecond port 120, and the salt substances in the single-channel desalination module 100 are rinsed to thethird pipeline 330 by the inflowing pure water.

In some embodiments, the single-channel desalination assembly 100 comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge. The dual-channel desalination assembly 200 includes at least one of a Reverse Osmosis membrane (RO) filter cartridge, a nanofiltration membrane filter cartridge, and an electrodialysis membrane filter 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.

Exemplary, 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 powered on, so as to realize the purification treatment of water, and the filter elements can be called as electrically-driven single-channel desalination filter elements. The reverse osmosis membrane filter core can realize the purification treatment of water when exerting pressure, can be called pressure drive binary channels desalination filter core.

Specifically, as shown in fig. 3 and 4, a schematic diagram of a structure of a bipolar membraneelectrodeionization filter cartridge 900 is shown.

As shown in fig. 3 and 4, the bipolar membraneelectrodeionization filter cartridge 900 includes one or more pairs ofelectrodes 910, and at least onebipolar membrane 920 or a plurality of spaced-apartbipolar membranes 920 is disposed between at least one pair ofelectrodes 910. Wherein,bipolar membrane 920 includescation exchange membrane 921 andanion exchange membrane 922, andcation exchange membrane 921 andanion exchange membrane 922 set up relatively, compound together. For example, thebipolar 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 thecation exchange membrane 921 and theanion exchange membrane 922 on onebipolar membrane 920, for example, water does not pass between thecation exchange membrane 921 and theanion exchange membrane 922 on the samebipolar membrane 920 when flowing through the bipolar membraneelectrodeionization filter cartridge 900.

As shown in fig. 3 and 4, the pair ofelectrodes 910 includes afirst electrode 911 and asecond electrode 912, wherein thefirst electrode 911 is disposed opposite to acation exchange membrane 921 of thebipolar membrane 920 adjacent to thefirst electrode 911, and thesecond electrode 912 is disposed opposite to ananion exchange membrane 922 of thebipolar membrane 920 adjacent to thesecond electrode 912.

Fig. 3 is a schematic diagram showing the operation principle of the bipolar membraneelectrodeionization filter element 900 in the process of purifying water. Here, the potential of thefirst electrode 911 is higher than that of thesecond electrode 912, that is, a voltage in a forward direction is applied between thefirst electrode 911 and thesecond electrode 912. At this time, anions such as chloride ions in the raw water to be purified move towards thefirst electrode 911, and replace OH < - > in theanion exchange membrane 922 in the direction of thefirst electrode 911, and the OH < - > enters the flow channel between the adjacentbipolar membranes 920; meanwhile, cations such as Na + in the raw water move towards thesecond electrode 912 to replace H + in thecation exchange membrane 921 in the direction of thesecond 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. 4, when a voltage in the opposite direction is applied between thefirst electrode 911 and thesecond electrode 912, so that the potential of thefirst electrode 911 is lower than that of thesecond electrode 912, OH "and H + ions are generated on the surfaces of thecation exchange membrane 921 and theanion exchange membrane 922 of thebipolar membrane 920 under the action of an electric field, cations such as Na + inside thecation exchange membrane 921 are replaced by H + ions and move toward thefirst electrode 911 at a low potential, anions such as chloride ions in theanion exchange membrane 922 are replaced by OH" and move toward thesecond 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 bipolarmembrane electrodeionization filter 900. Therefore, when the power is off or reverse voltage is applied to the desalting filter cores such as the bipolar membraneelectrodeionization filter core 900 and the like, cations such as Na < + >, anions such as chloride ions and the like adsorbed on thebipolar membrane 920 are released, so that salt substances in the desalting filter core can be washed out by water to realize regeneration; water carrying cations such as Na + and anions such as chloride ions can be called concentrated water.

Illustratively, as shown in fig. 5, the household water purifying apparatus may further include apower supply module 420 and adriving module 20, wherein thepower supply module 420 is connected to the singlechannel desalination module 100 and applies a forward voltage or a reverse voltage to the singlechannel desalination module 100. For example, an electrically driven single-channel desalination filter element is connected to supply power to the electrically driven single-channel desalination filter element. Driveassembly 20 drives water flow to the single-channel desalination assembly 100 and the dual-channel desalination assembly 200. Illustratively, thedrive assembly 20 may include a pressure pump.

In some embodiments, the voltage at which thepower supply assembly 420 supplies power to the electrically driven single-channel desalination cartridge can be adjusted, and the desalination rate of the electrically driven single-channel desalination cartridge changes as the voltage supplied by thepower supply assembly 420 is adjusted.

Exemplarily, the running voltage of the electrically-driven single-channel desalination filter element adapted to the water quality can be set according to the difference of the water quality of the using region of the household water purifying device, so that the water purified by the electrically-driven single-channel desalination filter element can meet the requirement. For example, when the quality of the water supplied from the water supply pipe is hard, the power supply voltage of thepower supply module 420 may be set high; when the water quality of the tap water pipe supply water is soft, the supply voltage of thepower supply module 420 may be set low.

In other embodiments, the single-channel desalination assembly 100 can be removably received within the interior of a domestic water purification device, such that the single-channel desalination assembly 100 can be removed from the domestic water purification device for flushing when desired, thereby allowing regeneration of the filter elements of the single-channel desalination assembly 100.

In some embodiments, as shown in fig. 5, the household water purifying apparatus further comprises acontrol module 410, thecontrol module 410 is connected to thepower supply module 420, the drivingmodule 20 and thewaterway switching device 350, and thepower supply module 420 is connected to the single-channel desalination module 100. Thecontrol component 410 may include, for example, a single chip microcomputer or the like.

Illustratively, thecontrol component 410 may include input devices, which may include, for example, buttons, knobs, touch screens, microphones, and the like.

Illustratively, when thecontrol module 410 detects an effluent control operation through the input device, such as a user pressing an effluent button, or sends out a voice including an effluent command, thepower supply module 420 is controlled to apply a forward voltage to the singlechannel desalination module 100 according to the detected effluent control operation, and thewaterway switching device 350 is controlled to tangentially connect to thefirst pipeline 310, so that the water input from thefirst pipeline 310 flows into the singlechannel desalination module 100, and the purified pure water purified by the singlechannel desalination module 100 is output to thesecond pipeline 320.

In some embodiments, when thecontrol module 410 switches to the regeneration mode during a preset time period, such as a time period from 10 pm tohalf 10 pm, thecontrol module 410 controls thepower supply module 420 to cut off power to the singlechannel desalination module 100 or to apply a reverse voltage to the singlechannel desalination module 100, and controls thewaterway switching device 350 to cut off the current direction to thethird pipeline 330. The dual-channel desalination assembly 200 purifies the water, and the generated pure water flows into the single-channel desalination assembly 100 through thefirst water outlet 220 and thesecond port 120, so that the salt ions attached to the single-channel desalination assembly 100 enter the water and are discharged out of the single-channel desalination assembly 100 along with the water.

In some embodiments, thepiping system 300 further includes a pressure relief valve connected to thefirst port 110.

For example, the pressure reducing valve comprises a plurality of pressure reducing valves which are connected in series. For example, two pressure reducing valves are connected in series, the pressure reducing valve in series is 2.5kg, the pressure reducing valve in series is 1.5kg, the initial water pressure P0 is reduced to P1 by the pressure reducing valve in series, and the P1 is reduced to the target water pressure Pn by the pressure reducing valve in series.

In some embodiments, as shown in fig. 1 and 2,conduit system 300 further includes afilter assembly 340 disposed onfirst conduit 310 and/or afilter assembly 340 disposed onsecond conduit 320.

Illustratively, thefilter assembly 340 in thefirst line 310 is capable of purifying the water entering the single-channel desalination assembly 100 and the dual single-channel desalination assembly 200, for example, removing the water that may contain particulate impurities, residual chlorine, etc., reducing the workload and consumption of the single-channel desalination assembly 100 and the dual single-channel desalination assembly 200, and extending the regeneration cycle and the service life thereof. Thefiltering assembly 340 on thesecond pipe 320 can further improve the quality of the pure water output from the household water purifying apparatus.

In some embodiments, the outlet direction of thesecond pipe 320 may be further connected to a heating unit, for example, a heat exchanger. The heating unit may heat the water flowing out of thesecond pipe 320 to provide the user with hot water of a desired temperature.

For example, the water outlet direction of thesecond 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 unit.

In some embodiments, as shown in FIGS. 1 and 2, atemperature sensing assembly 40 may also be disposed in thefirst conduit 310, thetemperature sensing assembly 40 being configured to sense the temperature of the water flowing to the single-channel desalination assembly 100 and the dual-channel desalination assembly 200.

In some embodiments, as shown in fig. 1 and 2, thepiping system 300 further comprises aconductivity detection assembly 10 disposed on thefirst piping 310 and/or aconductivity detection assembly 10 disposed on thesecond piping 320, or aconductivity detection assembly 10 disposed on thethird piping 330. The water quality of the water at the corresponding position can be detected by theconductivity detection 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.

For example, theconductivity detection module 10 may be disposed on thesecond port 120 side of the single-channel desalination module 100 and thefirst water outlet 220 side of the dual-channel desalination module 200, respectively, and the conductivity of the water discharged from the single-channel desalination module 100 and the conductivity of the water discharged from the dual-channel desalination module 200 may be detected by theconductivity detection module 10, so as to determine whether the water purification effect of the single-channel desalination module 100 and the dual-channel desalination module 200 can meet the requirement.

Specifically, when the conductivity data detected by theconductivity detection assembly 10 on thesecond port 120 side of the singlechannel desalination assembly 100 is not less than the target conductivity, it can be determined that the singlechannel desalination assembly 100 requires regeneration processing. When the conductivity data detected by theconductivity detection assembly 10 on the first outlet side of the dual-channel desalination assembly 200 is not less than the target conductivity, it can be determined that the dual-channel desalination assembly 200 requires regeneration processing.

For example, when the duration of the time that the conductivity data detected by theconductivity detection assembly 10 on thesecond port 120 side of the single-channel desalination assembly 100 or theconductivity detection assembly 10 on thefirst water outlet 220 side of the dual-channel desalination assembly 200 is not less than the target conductivity exceeds a preset time period, such as 10 hours, it can be determined that the regeneration process is required for the single-channel desalination assembly 100 or the dual-channel desalination assembly 200.

In some embodiments, as shown in fig. 5, thecontrol module 410 is connected to theconductivity detection module 10, thepower module 420 and thewaterway switching device 350, and thepower module 420 is connected to the singlechannel desalination module 100. Thecontrol component 410 may include, for example, a single chip microcomputer or the like.

Illustratively, thecontrol module 410 controls thepower supply module 420 to cut off power to the singlechannel desalination module 100 or to apply a reverse voltage to the singlechannel desalination module 100 while controlling thewaterway switching device 350 to tangentially connect to thethird pipeline 330 when the conductivity data detected by theconductivity detection module 10 at the second port side of the singlechannel desalination module 100 is not less than the target conductivity. Such that salt ions attached to the single-channel desalination assembly 100 enter the water and exit the single-channel desalination assembly 100 with the water, and the flushed wastewater exits thefirst port 110 of the single-channel desalination assembly 100 into thethird conduit 330.

In some embodiments, as shown in fig. 1 and 2, aconductivity detection assembly 10 may be further disposed on thefirst pipeline 310, and theconductivity detection assembly 10 may be capable of detecting the quality of the water to be purified.

Illustratively, theconductivity detection module 10 is coupled to thecontrol module 410. Thecontrol module 410 can control thepower supply module 420 to adjust the power supply voltage to the singlechannel desalination module 100 based on the conductivity data detected by theconductivity detection module 10 in thefirst conduit 310. For example, the greater the conductivity data detected by theconductivity detection assembly 10 on thefirst conduit 310, the greater the voltage of the forward voltage applied by thepower supply assembly 420 to the singlechannel desalination assembly 100 to enhance the effectiveness of the purification process.

In some embodiments, as shown in fig. 1 and 2, aflow detection assembly 30 may be further disposed on thefirst pipeline 310 and/or thesecond pipeline 320, and theflow detection assembly 30 is connected to thecontrol assembly 410.

In some embodiments, theconductivity detection assembly 10 is disposed on thethird conduit 330. When the single-channel desalination assembly 100 is de-energized or a reverse voltage is applied to the single-channel desalination assembly 100, thecontrol assembly 410 determines the effectiveness of regeneration of the single-channel desalination assembly 100 based on the conductivity data detected by theconductivity detection assembly 10 in thethird line 330.

Illustratively, water after flushing the singlechannel desalination assembly 100 can be drained through thethird line 330, during which theconductivity detection assembly 10 on thethird line 330 can detect conductivity data of the water after flushing the singlechannel desalination assembly 100. When the conductivity data is less than the predetermined conductivity, it can be determined that the saline flush in the singlechannel desalination assembly 100 is complete, the regeneration mode can be terminated, such as resuming the application of positive voltage to the singlechannel desalination assembly 100, and thewaterway switching device 350 can be controlled to switch tangentially to thefirst pipeline 310.

In some embodiments, the household water purifying apparatus further includes a raw water tank capable of storing water, and one end of thefirst pipe 310 is connected to the raw water tank, and the other end is connected to thefirst port 110 and thefirst water inlet 210.

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.

For example, the water stored in the raw water tank may flow into the single-channel desalination module 100 and the dual-channel desalination module 200 through thefirst pipe 310, the inflow water is purified when the single-channel desalination module 100 applies a positive voltage, and the purified water is output through thesecond pipe 320.

It is understood that one end of thefirst pipeline 310 may also be directly connected to the tap water pipe, and the other end is connected to thefirst port 110 and thefirst water inlet 210 which are connected in parallel.

The domestic water purifying device provided by the above embodiment of the present specification comprises a single-channel desalination assembly and a double-channel desalination assembly, which are arranged in parallel, wherein the single-channel desalination assembly comprises a first port and a second port, the double-channel desalination assembly comprises a first water inlet and a first water outlet, the first port is connected in parallel with the first water inlet, and the second port is connected in parallel with the first water outlet; the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, wherein the first pipeline is connected with a first port and a first water inlet, the second pipeline is connected with a second port and a first water outlet, and the third pipeline is connected with the first port; the double-flow-channel desalting component purifies the water flowing in through the first water inlet, the generated pure water flows into the single-flow-channel desalting component through the first water outlet and the second port, and salt substances in the single-flow-channel desalting component flow into the third pipeline through the first port after being washed by the flowing pure water. The pure water generated by the purification treatment of the double-flow-channel desalting component washes and regenerates the single-flow-channel desalting component, so that the scaling risk during the regeneration of the single-flow-channel desalting component is reduced, and the water quality of the prepared pure water is guaranteed.

In the description of the embodiments of the present invention, it should 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", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the embodiments of the present invention.

Furthermore, the terms "first", "first" 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 "first" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

In embodiments of the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the first feature may comprise the first and second features being in direct contact, or may comprise the first and second features being in contact, not directly, but via another feature in between. Also, a first feature being "on," "over," and "above" a first feature includes the first feature being directly above and obliquely above the first feature, or simply means that the first feature is higher in level than the first feature. A first feature being "under," "below," and "beneath" a first feature includes the first feature being directly under and obliquely below the first feature, or simply meaning that the first feature is at a lesser elevation than the first 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.