CN113402090A

CN113402090A - Household water purifying device

Info

Publication number: CN113402090A
Application number: CN202010183375.1A
Authority: CN
Inventors: 陈小平; 晏博; 吕苏
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

The application relates to the technical field of household water purification, and particularly discloses a household water purification device which comprises a water tank, a water storage tank and a water outlet pipe, wherein the water tank comprises a first water outlet and a first water inlet and can store water; the first heating assembly is connected to the water tank and can heat water stored in the water tank; the single-channel desalting component comprises a second water inlet and a second water outlet, the water flowing in from the second water inlet is purified, and the treated water flows out from the second water outlet; a piping system connecting the water tank and the single-channel desalination assembly, capable of transporting water in the water tank from the first water outlet to the second water inlet, and transporting water at the second water outlet to the water tank through the first water inlet; the pipeline system comprises a water outlet valve and a second heating assembly, wherein the water outlet valve is positioned between the first water outlet and the second water inlet, the second heating assembly is connected to the water outlet valve, and the second heating assembly can heat water sent out by the water outlet valve. The utilization rate of water is improved, and the water outlet speed of hot water can be effectively improved.

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. During the treatment process, substances such as bacteria, viruses, scale, salt ions and the like which do not pass through the reverse osmosis membrane form concentrated water to be discharged. The prior common reverse osmosis membrane generates more concentrated water during purification and is not high in water utilization rate.

Disclosure of Invention

The embodiment of the application provides a domestic purifier, adopts the desalination subassembly of single current way to carry out the water purification, and the water that gets into single current way desalination subassembly can be followed the delivery port and discharged, obtains purification treatment simultaneously, does not produce waste water at this in-process, has improved the utilization ratio of water.

The application provides a domestic purifier, domestic purifier includes:

the water tank comprises a first water outlet and a first water inlet and can store water;

the first heating assembly is connected to the water tank and can heat water stored in the water tank;

the single-channel desalting component comprises a second water inlet and a second water outlet, the water flowing in from the second water inlet is purified, and the treated water flows out from the second water outlet;

a piping system connecting the water tank and the single-channel desalination assembly, capable of transporting water in the water tank from the first water outlet to the second water inlet, and transporting water at the second water outlet to the water tank through the first water inlet;

the pipeline system comprises an outlet valve and a second heating component, the outlet valve is located between the first water outlet and the second water inlet, the second heating component is connected to the outlet valve, and the second heating component can heat water sent by the outlet valve.

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 piping system comprises a pre-filter assembly comprising a PP cotton filter element and/or an activated carbon filter element between the outlet valve and the single channel desalination assembly.

Illustratively, the conduit system includes a drive assembly positioned between the first water outlet and the water outlet valve, the drive assembly driving water in the tank to flow to the single-channel desalination assembly and/or out through the water outlet valve.

Illustratively, a first temperature sensor is arranged on the water tank, and a second temperature sensor is arranged on the water outlet side of the second heating component;

the first heating assembly heats water stored in the water tank to a first temperature, and the second heating assembly heats water flowing therethrough to a second temperature, which is higher than the first temperature.

Exemplarily, the household water purifying device further comprises a control component, a conductivity detection component is arranged on the water tank and/or the pipeline system, and the control component is connected to the conductivity detection component and the first heating component;

the control assembly obtains conductivity data of the water from the conductivity detection assembly and controls the first heating assembly to heat the water stored in the water tank to a first temperature when the conductivity data reaches a target conductivity.

Exemplarily, the household water purifying device further comprises a control assembly, a first temperature sensor is arranged on the water tank, a conductivity detection assembly is arranged on the water tank and/or the pipeline system, and the control assembly is connected to the conductivity detection assembly and the first heating assembly;

the control assembly obtaining the temperature of the water in the water tank from the first temperature sensor and conductivity data of the water from the conductivity detection assembly; and when the temperature of the water in the water tank does not exceed a preset temperature threshold value and the conductivity data does not reach the target conductivity, the control assembly controls the single-channel desalination assembly to purify the water flowing into the second water inlet.

Illustratively, the water tank includes a first receiving part and a second receiving part, and the first heating assembly heats water stored in the first receiving part.

Illustratively, when the single-channel desalination assembly is powered in a first direction, the single-channel desalination assembly purifies water flowing through the single-channel desalination assembly; the single channel desalination assembly is powered in a second direction opposite the first direction, and the water flows through to wash the single channel desalination assembly.

Illustratively, the single-channel desalination assembly includes a housing and a filter element removably received within an interior of the housing.

Illustratively, the water outlet valve is connected with a plurality of water outlet pipelines in the water outlet direction, and the second heating component is arranged on at least one water outlet pipeline.

The application discloses a household water purifying device, water stored in a water tank enters a single-channel desalting component through a pipeline system, and the single-channel desalting component is used for purifying the water for a plurality of times, so that the utilization rate of the water is improved; the first heating assembly can heat the water stored in the water tank for the first time, for example, the water flowing out of the water tank is heated to a lower temperature; then when the outlet valve is opened, the water sent out by the outlet valve is reheated by the second heating component, so that the household water purifying device outputs water with higher temperature, and the water outlet speed of hot water can be effectively improved.

Drawings

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

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

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

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

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

fig. 5 is a schematic structural diagram of another embodiment of the household water purifying device.

Reference numerals: 100. a water tank; 110. a first water outlet; 120. a first water inlet; 200. a first heating assembly; 300. a single-channel desalination assembly; 310. a second water inlet; 320. a second water outlet; 400. a piping system; 410. a water outlet valve; 420. a second heating assembly; 430. a pre-filter assembly; 440. a drive assembly; 11. a first temperature sensor; 12. a second temperature sensor; 20. a conductivity detection 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 purifying apparatus includes a water tank 100, a first heating module 200, a single channel desalination module 300, and a piping system 400.

The water tank 100, including the first water outlet 110 and the first water inlet 120, is capable of storing water.

In some embodiments, the water tank 100 includes a transparent housing or a transparent window is provided on the housing, which facilitates a user to view the water quality, water level, etc. in the water tank 100.

In some embodiments, the water tank 100 includes a water injection port through which water to be purified may be added to the water tank 100. For example, the water filling port is connected with a tap water pipe. Illustratively, a liquid level meter is further provided in the water tank 100, and when the liquid level in the water tank 100 drops to a set value, a valve of a tap water pipe can be controlled to open to add water to a water filling port of the water tank 100.

Specifically, the first heating unit 200 is connected to the water tank 100 and is capable of heating water stored in the water tank 100.

For example, the first heating assembly 200 may be disposed below the water tank 100, on the circumferential side of the water tank 100, or inside the water tank 100; the water outlet device can also be arranged at the first water outlet 110 of the water tank 100, and water flowing out of the first water outlet 110 can be output after being heated by the first heating assembly 200.

For example, the first heating assembly 200 may include at least one of an electric heating pipe and a high frequency induction heating assembly to heat the water stored in the water tank 100.

Specifically, as shown in FIG. 1, the single channel desalination assembly 300 includes a second water inlet 310 and a second water outlet 320. The single channel desalination assembly 300 can purify the water flowing in from the second water inlet 310 and the purified water flows out through the second water outlet 320.

As can be appreciated, the single-channel desalination assembly 300 uses only one water inlet and one water outlet for the purification of the water flowing therethrough, and thus can be referred to as a single-channel desalination assembly.

In some embodiments, the single channel desalination assembly 300 can, of course, also include other water inlets and/or outlets. For example, when the single-channel desalination assembly 300 is flushed and regenerated, the generated wastewater can be discharged through the water outlet. When the single-channel desalination assembly 300 is purifying water flowing through, the water inlets and/or water outlets other than the second water inlet 310 and the second water outlet 320 can be closed, forming a single-channel structure.

The single channel desalination module 300 may not discharge wastewater when performing purification treatment on the passing water. 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 300 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 300 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) desalination 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 electrified, so that the purification treatment of water is realized; such cartridges may be referred to as electrically driven desalination cartridges.

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

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

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

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

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

In some embodiments, the voltage at which the power supply assembly supplies power to the electrically driven desalination filter element can be adjusted, and the desalination rate of the electrically driven desalination filter element changes as the voltage supplied by the power supply assembly is adjusted.

Specifically, as shown in FIG. 1, the piping system 400 connects the water tank 100 and the single channel desalination assembly 300, and is capable of delivering water from the water tank 100 to the second water inlet 310 of the single channel desalination assembly 300 from the first water outlet 110, and delivering water from the second water outlet 320 of the single channel desalination assembly 300 to the water tank 100 through the first water inlet 120.

Illustratively, the water in the water tank 100 is purified after several passes through the single-channel desalination assembly 300, and the water in the water tank 100 is increasingly clean, for example, the water is purified by the single-channel desalination assembly 300 several times, so that the water quality of the water in the water tank 100 meets the requirement.

As shown in FIG. 1, the piping system 400 includes an outlet valve 410 between the first outlet 110 and the second inlet 310, and a second heating element 420 connected to the outlet valve 410, wherein the second heating element 420 can heat the water sent from the outlet valve 410.

In some embodiments, the outlet valve 410 is connected to a plurality of outlet pipes in the outlet direction, and the second heating element 420 is disposed on at least one of the outlet pipes.

Specifically, the outlet valve 410 is capable of sending out water from the water tank 100. For example, when the water valve is opened, the water stored in the water tank 100 can flow out of the water outlet valve 410, the flow rate of the outlet water can be unrestricted by the single channel desalination assembly 300, and the flow rate of the outlet water can be relatively large. The user can be avoided waiting for a long time when receiving water.

Illustratively, as shown in fig. 1, the outlet valve 410 may include a three-way valve, which is switched to allow the water in the water tank 100 to be delivered to the second inlet 310 or to an external container.

Specifically, when the three-way valve allows water in the water tank 100 to be delivered to the second water inlet 310, the single channel desalination assembly 300 can purify the water from the second water inlet 310; the single channel desalination assembly 300 can be shut down when the three-way valve allows water in the water tank 100 to be delivered to an external container.

A second heating element 420 coupled to the outlet valve 410 may heat the water delivered by the outlet valve 410 to provide hot water at a desired temperature to a user. The second heating assembly 420 includes, for example, a heat exchanger or the like.

In some embodiments, the water stored in the water tank 100 enters the single channel desalination assembly 300 through the piping system 400, and the single channel desalination assembly 300 performs several purification processes on the water to make the water in the water tank 100 sufficiently pure, for example, to meet drinking standards. The first heating assembly 200 can heat the water stored in the water tank 100 for the first time, for example, the water flowing out from the water tank 100 is heated to a lower temperature; then, when the outlet valve 410 is opened, the water sent out by the outlet valve 410 is heated again by the second heating component 420, so that the household water purifying device outputs water with higher temperature, and the water outlet speed of the hot water can be effectively improved.

In some embodiments, as shown in FIG. 4, the piping system 400 comprises a pre-filter assembly 430 positioned between the outlet valve 410 and the single-channel desalination assembly 300, and the pre-filter assembly 430 can perform a certain purification treatment on the water entering the single-channel desalination assembly 300, such as removing particulate impurities, residual chlorine, etc., from the water, reducing the workload and consumption of the single-channel desalination assembly 300, and extending the regeneration cycle and service life thereof.

For example, since the pre-filter assembly 430 is disposed behind the outlet valve 410, when a user needs to output hot water from the household water purifying apparatus, the water heated by the first heating assembly 200 can directly flow out through the outlet valve 410 without flowing through the pre-filter assembly 430, so as to prevent the water heated by the first heating assembly 200 from affecting the water purifying effect of the pre-filter assembly 430. It can be appreciated that the first heating assembly 200 can preheat the water in the water tank 100 to a higher temperature at this time, so that the water outlet speed of the water heated by the second heating assembly 420 can be further increased.

In other embodiments, the pre-filter assembly 430 may also be disposed between the first water outlet 110 and the water outlet valve 410 for performing a purification process when the water in the water tank 100 flows out of the water outlet valve 410. The temperature of the water in the water tank 100 preheated by the first heating assembly 200 should not be excessively high.

Illustratively, the pre-filter assembly 430 may include a PP cotton filter element and/or an activated carbon filter element.

In some embodiments, as shown in FIG. 4, the piping system 400 includes a drive assembly 440 positioned between the first water outlet 110 and the water outlet valve 410, the drive assembly 440 driving water in the water tank 100 to flow to the single flow desalination assembly 300 and/or out through the water outlet valve 410.

Illustratively, the drive assembly 440 may comprise a self-priming pump. When the single-channel desalination assembly 300 is in operation, the drive assembly 440 drives water in the water tank 100 to flow to the single-channel desalination assembly 300; when the outlet valve 410 is opened, the driving assembly 440 drives the water in the water tank 100 to flow out through the outlet valve 410, so that the flow rate of the discharged water can be increased, and a user is prevented from waiting for a long time when receiving water.

In some embodiments, as shown in fig. 5, a first temperature sensor 11 is provided on the water tank 100, and is capable of detecting the temperature of water in the water tank 100.

In some embodiments, the water outlet side of the second heating assembly 420 is provided with a second temperature sensor 12.

In particular, the second temperature sensor 12 is capable of detecting the temperature of the outlet side of the second heating assembly 420. For example, the temperature of the water heated by the second heating member 420 is detected.

Illustratively, the first heating unit 200 heats the water stored in the water tank 100 to a first temperature, and the second heating unit 420 heats the water flowing therethrough to a second temperature, which is higher than the first temperature.

In some embodiments, the household water purification device further comprises a control component, and the control component may comprise a single chip microcomputer and the like. The control assembly may be connected to the first temperature sensor 11, the second temperature sensor 12, the first heating assembly 200, the second heating assembly 420, and may also be connected to the driving assembly 440.

For example, the control module detects the temperature of the water in the water tank 100 through the first temperature sensor 11, and when the detected temperature of the water in the water tank 100 is not greater than the preset first temperature, the control module may control the first heating module 200 to heat the water stored in the water tank 100 until the detected temperature of the water in the water tank 100 reaches the first temperature. For example, the control unit may further detect the temperature of the water outlet side of the second heating unit 420 through the second temperature sensor 12, and when the detected temperature of the water outlet side of the second heating unit 420 is not greater than the second temperature, the control unit may control the second heating unit 420 to increase the power, or control the driving unit 440 to decrease the flow rate of the water, so that the temperature of the water outlet side of the second heating unit 420 reaches the second temperature.

In some embodiments, as shown in fig. 5, a conductivity sensing assembly 20 is provided on the tank 100 and/or the piping system 400. The water quality of the water at the corresponding position can be detected by the conductivity detection assembly 20. 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.

Illustratively, the household water purifying apparatus further comprises a control assembly, and the control assembly is connected to the conductivity detection assembly 20.

Illustratively, the control assembly obtains conductivity data of the water from the conductivity detection assembly 20, and when the conductivity data does not reach a target conductivity, the control assembly can activate the electrically driven desalination cartridge to purify the water in the water tank 100.

Illustratively, the control assembly is also coupled to the drive assembly 440.

Illustratively, the control module obtains the conductivity data of the water from the conductivity detection module 20, and controls the driving module 440 to drive the water in the water tank 100 to flow to the single-channel desalination module 300 when the conductivity data does not reach the target conductivity, so that the single-channel desalination module 300 performs the purification treatment on the water flowing in from the second water inlet 310, and the treated water flows out to the water tank 100 through the second water outlet 320.

Illustratively, in the process of purifying water, the salinity concentration in the water can be detected in real time by detecting the electrical conductivity of the water, and the desalination rate of the single channel desalination module 300 can be adjusted by changing the voltage of the single channel desalination module 300, so as to ensure the stability of the quality of the produced water.

In some embodiments, the control assembly stops controlling the drive assembly 440 to drive water in the water tank 100 to the single channel desalination assembly 300 when the conductivity data reaches the target conductivity.

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

By adjusting the target conductivity, the single channel desalination assembly 300 can be controlled to purify the water in the water tank 100 to a corresponding water quality, which can be applied to a corresponding water usage situation.

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

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

Illustratively, when the input device detects a water-out control operation, such as a user pressing a water-out button, or uttering a voice including a water-out command, it is determined whether the conductivity data detected by the conductivity detection assembly 20 reaches the target conductivity. The control assembly may also be coupled to the outlet valve 410, and when the conductivity data reaches the target conductivity, the control assembly may control the outlet valve 410 to open to allow water in the tank 100 to be dispensed for use by the user.

In some embodiments, the water in the water tank 100 is first filtered several times by the single channel desalination assembly 300 such that the conductivity data of the water in the water tank 100 meets the target conductivity requirements. The first heating assembly 200 is then controlled to heat the water stored in the water tank 100 for the first time, for example, to warm the water flowing out of the water tank 100 to the first temperature. Then, when the outlet valve 410 is opened, the water sent out by the outlet valve 410 is heated again by the second heating component 420, so that the household water purifying device outputs water with a second temperature, and the outlet speed of the hot water can be effectively improved.

It will be appreciated that when the input device detects an outlet control operation, the outlet valve 410 may be controlled to open to allow water in the tank 100 to be dispensed for use by a user as long as the conductivity data detected by the conductivity detection assembly 20 reaches the target conductivity. For example, after the conductivity data of the water in the water tank 100 meets the target conductivity requirement, the first heating element 200 is controlled to heat the water stored in the water tank 100 for the first time, and when the temperature of the water flowing out of the water tank 100 is not increased to the first temperature, if the water outlet control operation is detected, the water outlet valve 410 can be controlled to be opened to send out the water in the water tank 100, and the water sent out by the water outlet valve 410 is heated by the second heating element 420.

In some embodiments, the control assembly obtains the temperature of the water in the water tank 100 from the first temperature sensor 11 and conductivity data of the water from the conductivity detection assembly 20. The control module controls the single channel desalination module 300 to purify the water flowing into the second water inlet 310 when the temperature of the water in the water tank 100 does not exceed the preset temperature threshold and the conductivity data does not reach the target conductivity.

For example, the control module may also control the first heating module 200 to preheat the water stored in the water tank 100, and the preheated temperature needs not to exceed the preset temperature threshold. The control assembly may then control the drive assembly 440 and/or the single channel desalination assembly 300 such that the preheated water enters the single channel desalination assembly 300 for purification; operation of the single channel desalination assembly 300 is then stopped when the control assembly obtains conductivity data for the water from the conductivity detection assembly 20 that reaches the target conductivity. The water enters the single channel desalination module 300 for purification after being preheated, which can improve the purification efficiency of the single channel desalination module 300.

In some embodiments, the single-channel desalination assembly 300 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 300 can be removed and flushed as needed to regenerate the filter elements of the single-channel desalination assembly 300.

In some embodiments, the single channel desalination assembly 300 is powered in a first direction to purify water flowing therethrough; when the single-channel desalination assembly 300 is powered in a second direction opposite the first direction, the water flowing through cleans the single-channel desalination assembly 300.

Illustratively, fig. 2 is a schematic diagram of the single-channel desalination assembly 300 powered in a first direction when the first electrode 911 is at a higher potential than the second electrode 912. Wherein the first electrode 911 is disposed opposite the cation exchange membrane 921 of the bipolar membrane 920 adjacent to the first electrode 911 and the second electrode 912 is disposed opposite the anion exchange membrane 922 of the bipolar membrane 920 adjacent to the second electrode 912.

Illustratively, fig. 3 is a schematic diagram illustrating the single-channel desalination assembly 300 powered in a second direction, wherein the first electrode 911 is at a lower potential than the second electrode 912.

Illustratively, the single-channel desalination assembly 300 can include a waste water discharge port. When needed, the power supply assembly can provide reverse voltage for the electrically driven desalination filter element, so that the filter element of the single-channel desalination assembly 300 can be flushed and regenerated, and the generated wastewater can be discharged through the wastewater discharge port.

For example, when the duration that the water quality detected by the conductivity detection assembly 20 does not reach the target conductivity exceeds a preset time period, such as 24 hours, it may be determined that the single-channel desalination assembly 300 needs to be regenerated, for example, a corresponding prompt message may be output to a user, or a voltage in a reverse direction may be provided to the electrically-driven desalination filter element by the power supply assembly, so as to implement washing and regeneration of the filter element of the single-channel desalination assembly 300.

In some embodiments, the water tank 100 may include a first receiving part and a second receiving part, wherein the first heating assembly 200 heats water stored in the first receiving part. For example, the water in the second receiving portion may be maintained at room temperature, and the user may take the water at room temperature from the second receiving portion.

For example, the water in the first and second compartments of the water tank 100 is first filtered several times by the single channel desalination assembly 300 so that the conductivity data of the water in the water tank 100 meets the target conductivity requirement. Then controlling the first heating assembly 200 to heat the water stored in the first receiving part; when the outlet valve 410 is opened, the water sent from the second container to the outlet valve 410 can be heated again by the second heating element 420.

The domestic purifier that the above-mentioned embodiment of this specification provided includes: the water tank comprises a first water outlet and a first water inlet and can store water; the first heating assembly is connected to the water tank and can heat water stored in the water tank; the single-channel desalting component comprises a second water inlet and a second water outlet, the water flowing in from the second water inlet is purified, and the treated water flows out from the second water outlet; a piping system connecting the water tank and the single-channel desalination assembly, capable of transporting water in the water tank from the first water outlet to the second water inlet, and transporting water at the second water outlet to the water tank through the first water inlet; the pipeline system comprises a water outlet valve and a second heating assembly, wherein the water outlet valve is positioned between the first water outlet and the second water inlet, the second heating assembly is connected to the water outlet valve, and the second heating assembly can heat water sent out by the water outlet valve. The water stored in the water tank enters the single-channel desalting component through the pipeline system, and the single-channel desalting component performs purification treatment on the water for a plurality of times, so that the utilization rate of the water is improved; the first heating assembly can heat the water stored in the water tank for the first time, for example, the water flowing out of the water tank is heated to a lower temperature; then when the outlet valve is opened, the water sent out by the outlet valve is reheated by the second heating component, so that the household water purifying device outputs water with higher temperature, and the water outlet speed of hot water can be effectively improved.

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", "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 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 invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise the first and second features being in direct contact, or the first and second features being in contact, not directly, but via 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 single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge.

3. The domestic water purification apparatus of claim 2, wherein said chemisorptive desalination cartridge comprises at least one of an ion exchange resin cartridge, a bipolar membrane electrodeionization cartridge;

4. The domestic water purification apparatus of claim 1, wherein said piping system comprises a pre-filter assembly between said outlet valve and said single channel desalination assembly, said pre-filter assembly comprising a PP cotton filter element and/or an activated carbon filter element.

5. The domestic water purification apparatus of claim 4, wherein said conduit system comprises a drive assembly positioned between said first water outlet and said water outlet valve, said drive assembly driving water in said tank to flow to said single-channel desalination assembly and/or out through said water outlet valve.

6. The domestic water purification apparatus of any one of claims 1-5, wherein said water tank is provided with a first temperature sensor, and the outlet side of said second heating element is provided with a second temperature sensor;

7. The domestic water purification device of claim 6, further comprising a control assembly, wherein a conductivity detection assembly is disposed on the water tank and/or the piping system, and the control assembly is connected to the conductivity detection assembly and the first heating assembly;

8. The domestic water purification apparatus of any one of claims 1-5, further comprising a control assembly, wherein the water tank is provided with a first temperature sensor, the water tank and/or the pipe system is provided with a conductivity detection assembly, and the control assembly is connected to the conductivity detection assembly and the first heating assembly;

9. The domestic water purification apparatus of any one of claims 1-5, wherein the water tank comprises a first receptacle and a second receptacle, the first heating assembly heating water stored in the first receptacle.

10. The domestic water purification apparatus of any one of claims 1-5, wherein the single channel desalination module is configured to purify water flowing therethrough when powered in the first direction; when the single-channel desalination assembly is powered in a second direction opposite to the first direction, the flowing water cleans the single-channel desalination assembly; or

The single-channel desalination assembly includes a housing and a filter element removably received within an interior of the housing.

11. The domestic water purification apparatus of any one of claims 1-5, wherein said outlet valve is connected to a plurality of outlet lines in the direction of water outlet, said second heating element being disposed on at least one of said outlet lines.