CN113402076A

CN113402076A - Household water purifying device

Info

Publication number: CN113402076A
Application number: CN202010183383.6A
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 domestic water purification field specifically discloses a domestic purifier, include: the system comprises a single-channel desalting component, a pure water tank, a first pipeline and a second pipeline; wherein the first pipeline is connected with the first water inlet; the second pipeline is connected between the first water outlet and the second water inlet; the household water purifier also comprises an output pipeline, and when water flows out of the household water purifier, the output pipeline outputs the water flowing out of the first water outlet and the second water outlet after mixing so as to output water with the conductivity data equal to the target conductivity. When the single-channel desalting component is used for purifying water flowing through, no waste water is discharged, so that the utilization rate of water is improved; the pure water with certain water quality is stored in the pure water tank, the water in the pure water tank and the water flowing out of the first water outlet can be mixed through the output pipeline and then output, the water quality of the water flowing out of the household water purifying device can be adjusted, and the water yield can be larger.

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 single-channel desalination assembly comprises a first water inlet and a first water outlet, when positive voltage is applied, water flowing into the first water inlet is purified, and the treated water flows out through the first water outlet;

the pure water tank comprises a second water inlet and a second water outlet and can store water;

the pipeline system comprises a first pipeline and a second pipeline; the first pipeline is connected with the first water inlet and used for supplying water to the first water inlet; the second pipeline is connected between the first water outlet and the second water inlet and is used for conveying the water treated by the single-channel desalination assembly to the pure water tank;

the pipeline system also comprises an output pipeline, wherein a first water inlet end of the output pipeline is connected with the first water outlet, and a second water inlet end of the output pipeline is connected with the second water outlet; when the household water purifying device discharges water, the output pipeline outputs the water discharged from the first water outlet and the second water outlet after mixing, so as to output water with the conductivity data equal to the target conductivity.

The application discloses domestic purifier includes: the single-channel desalination assembly comprises a first water inlet and a first water outlet, and when positive voltage is applied, water flowing into the first water inlet is purified, and the treated water flows out through the first water outlet; the pure water tank comprises a second water inlet and a second water outlet and can store water; the pipeline system comprises a first pipeline and a second pipeline; the first pipeline is connected with the first water inlet and used for supplying water to the first water inlet; the second pipeline is connected between the first water outlet and the second water inlet and is used for conveying the water treated by the single-channel desalination assembly to the pure water tank; the pipeline system also comprises an output pipeline, wherein the first water inlet end of the output pipeline is connected with the first water outlet, and the second water inlet end of the output pipeline is connected with the second water outlet; when the household water purifying device discharges water, the output pipeline outputs the water flowing out of the first water outlet and the second water outlet after mixing, so that the water with the conductivity data equal to the target conductivity is output. When the single-channel desalting component is used for purifying water flowing through, no waste water is discharged, so that the utilization rate of water is improved; the pure water of certain quality of water is saved in the pure water case, can be exported by the output after mixing the water that first delivery port and second delivery port flow out through output pipeline, can realize the regulation of domestic purifier play water quality of water, and the water yield can be bigger.

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 view showing the connection relationship of the parts in the household water purifying apparatus;

FIG. 4 is a schematic diagram of a bipolar membrane electrodeionization cartridge desalination process;

FIG. 5 is a schematic diagram of the bipolar membrane electrodeionization filter regeneration process;

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

fig. 7 is a schematic structural diagram of another embodiment of the household water purifying device.

Reference numerals: 110. a single-channel desalination assembly; 111. a first water inlet; 112. a first water outlet; 120. a pure water tank; 121. a second water inlet; 122. a second water outlet; 130. a piping system; 131. a first pipeline; 132. a second pipeline; 133. an output pipeline; 1331. a first water inlet end; 1332. a second water inlet end; 1333. an output end; 1334. a first valve assembly; 134. a water outlet pipeline; 1341. a heating unit; 1342. a water outlet valve; 135. discharging the water pump; 136. a filter assembly; 140. a raw water tank; 150. a second valve component; 160. a wastewater tank;

10. a power supply assembly; 20. a control component; 30. a first conductivity detection assembly; 40. a second conductivity detection component; 50. a third conductivity detection assembly; 60. a drive assembly; 70. a flow meter; 80. a fourth 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 single-channel desalination module 110, a pure water tank 120, and a pipeline system 130.

The single-channel desalination assembly 110 includes a first water inlet 111 and a first water outlet 112, and when a forward voltage is applied, the water flowing into the first water inlet 111 is purified, and the treated water flows out through the first water outlet 112.

Specifically, the pure water tank 120 includes a second water inlet 121 and a second water outlet 122, and is capable of storing water;

specifically, as shown in fig. 1, the piping system 130 includes a first piping 131, a second piping 132; the first pipeline 131 is connected to the first water inlet 111 and is used for supplying water to the first water inlet 111; the second pipe 132 is connected between the first water outlet 112 and the second water inlet 121, and delivers the water treated by the single channel desalination unit 110 to the pure water tank 120.

In some embodiments, as shown in fig. 2, the household water purification apparatus further includes a raw water tank 140 capable of storing water. The first conduit 131 has one end connected to the raw water tank 140 and the other end connected to the first water inlet 111 of the single channel desalination assembly 110.

Illustratively, the raw water tank 140 includes a transparent housing or a transparent window is provided on the housing, which is convenient for a user to view the water quality, water level, etc. in the raw water tank 140.

Illustratively, the raw water tank 140 may further include a water injection port through which water to be purified may be added to the raw water tank 140. For example, the water filling port is connected with a tap water pipe. Illustratively, the raw water tank 140 is further provided with a liquid level meter, and when the liquid level in the raw water tank 140 drops to a set value, the valve of the tap water pipe can be controlled to open to add water to the water filling port of the raw water tank 140.

It will be appreciated that the first conduit 131 may also be connected directly to the tap water line at one end and to the first water inlet 111 of the single channel desalination assembly 110 at the other end.

Illustratively, the water stored in the raw water tank 140 may flow into the single channel desalination module 110 through the first pipe 131, and when the single channel desalination module 110 applies a positive voltage, the flowing water is purified, and the purified water is output through the second pipe 132. The water output can be fed, for example, via a second line 132 into the pure water tank 120.

Illustratively, the user may obtain purified water from the pure water tank 120.

As can be appreciated, the single-channel desalination assembly 110 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 110 can, of course, also include other water inlets and/or outlets. For example, when the single-channel desalination module 110 is flushed and regenerated, the generated wastewater can be discharged through the water outlet. When the single-channel desalination assembly 110 is purifying the water flowing through, the water inlets and/or outlets other than the first water inlet 111 and the first water outlet 112 can be closed, so as to form a single-channel structure.

The single channel desalination module 110 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 110 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.

Specifically, as shown in fig. 1 and 2, the pipeline system 130 further includes an output pipeline 133. Wherein, the first water inlet end 1331 of the output pipeline 133 is connected to the first water outlet 112, and the second water inlet end 1332 is connected to the second water outlet 122; when the household water purification device is discharging water, the output pipeline 133 mixes the water discharged from the first water outlet 112 and the water discharged from the second water outlet 122 and outputs the mixed water through the output end 1333, so as to output water with the conductivity data equal to the target conductivity.

For example, the single-channel desalination assembly 110 can output water of different conductivity under different conditions, such as different purification efficiency when the flow rate of the influent water is different, such as different purification efficiency when the applied voltage is different.

Illustratively, the single channel desalination assembly 110 can output water of a first conductivity when delivering purified treated water to the pure water tank 120; the single channel desalination assembly 110 can output water of a second conductivity while delivering purified treated water to the first water inlet end 1331 of the output conduit 133. The water of the first conductivity flowing from the pure water tank 120 and the water of the second conductivity output by the single channel desalination assembly 110 can be mixed in the output line 133 to obtain water having conductivity data equal to the target conductivity.

In some embodiments, as shown in fig. 2, the output line 133 includes a first valve assembly 1334, and the first valve assembly 1334 can open or close the flow of water out of the first water outlet 112 to the output 1333 of the output line 133.

Illustratively, as shown in fig. 2, the first valve assembly 1334 may include a two-way valve that may be located on the first water inlet end 1331 of the output line 133.

When the two-way valve is turned on, the output pipeline 133 may mix the water flowing out from the first water outlet 112 and the second water outlet 122 and output the mixed water through the output port 1333, so as to output the water with the conductivity data equal to the target conductivity.

When the two-way valve is turned off, the output line 133 may output the water in the pure water tank 120.

It can be understood that the water flowing out from the first water outlet 112 and the second water outlet 122 can be mixed by the output pipe 133 and then output from the output end 1333, so that the quality of the outlet water of the household water purifying device can be adjusted, and the water output can be larger.

In some embodiments, as shown in fig. 2, the output 1333 of the output pipe 133 can be connected to a plurality of water outlet pipes 134, and at least one of the water outlet pipes 134 is provided with a heating unit 1341. The heating unit 1341 includes, for example, a heat exchanger or the like. The heating unit 1341 can heat the water flowing out of the water outlet pipe 134 to provide the user with hot water at a desired temperature.

Illustratively, the outlet line 134 includes an outlet valve 1342, and the outlet line 134 discharges when the outlet valve 1342 is open.

In some embodiments, as shown in fig. 3, the domestic water purification device may further include a control assembly 20. The control unit 20 may include, for example, a single chip microcomputer or the like.

Illustratively, the control assembly 20 may include input devices, which may include, for example, buttons, knobs, touch screens, microphones, and the like.

In particular, the outlet valve 1342 may be coupled to the control assembly 20. Illustratively, when the control assembly 20 detects a water outlet control operation via an input device, such as a user pressing a water outlet button, or uttering a voice including a water outlet command, the water outlet valve 1342 of the water outlet pipeline 134 is controlled to open to output the water in the purified water tank 120 or to output the mixed water.

For example, the output pipeline 133 and/or the water outlet pipeline 134 may be provided with a water outlet pump 135 to speed up the water receiving and reduce the waiting time for the user to receive the water.

As shown in fig. 2, a water outlet pump 135 is disposed at the second water inlet end 1332 of the output pipeline 133 to pump out the water in the pure water tank 120.

Specifically, the water outlet pump 135 may be connected to the control assembly 20. For example, when the control assembly 20 detects a water outlet control operation via the input device, the outlet valve 1342 and the outlet pump 135 are controlled to open.

Illustratively, the first valve assembly 1334 is coupled to the control assembly 20.

In some embodiments, a liquid level meter may be disposed in the pure water tank 120, and when the water level in the pure water tank 120 is higher than a preset water level, the operation of the single channel desalination assembly 110 may be controlled to stop, so as to save energy consumption; when the water level in the pure water tank 120 is lower than the preset water level, the single-channel desalination module 110 can be controlled to operate, and the two-way valve can be closed, so that the purified water of the single-channel desalination module 110 flows into the pure water tank 120, so that the pure water tank 120 can store enough purified water.

In some embodiments, the target conductivity may be pre-stored in the memory of the control component 20, or the control component 20 may determine the target conductivity according to a user setting operation. When the conductivity of the water reaches the target conductivity, the water quality can be determined to meet the demand, for example, for use in a dishwasher, washing machine and/or for direct drinking.

In some embodiments, as shown in fig. 4 and 5, the single-channel desalination assembly 110 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 as to realize the purification treatment of water, and the filter elements can be called as electrically driven desalination filter elements.

Specifically, fig. 4 and 5 show a schematic diagram of a structure of a bipolar membrane electrodeionization filter cartridge 900.

As shown in fig. 4 and 5, 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. 4 and 5, 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. 4 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. 5, 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.

In some embodiments, as shown in fig. 3, the household water purification apparatus further comprises a power supply module 10, wherein the power supply module 10 is connected to the single-channel desalination module 110;

the power module 10 regulates the voltage that powers the single-channel desalination module 110 to regulate the conductivity of the water exiting the first water outlet 112.

For example, when the output voltage of the power supply module 10 is increased, the desalination efficiency of the single-channel desalination module 110 is higher, and the conductivity of the water flowing out of the first water outlet 112 can be reduced; when the output voltage of the power module 10 is reduced, the desalination efficiency of the single-channel desalination module 110 is low, and the conductivity of the water flowing out of the first water outlet 112 can be increased.

Illustratively, as shown in FIG. 3, the power supply module 10 is connected to the control module 20, and the control module 20 can control the power supply module 10 to apply a voltage in a forward direction, a voltage in a reverse direction to the single channel desalination module 110, or to de-energize the single channel desalination module 110; the magnitude of the voltage output by the power supply assembly 10 to the single channel desalination assembly 110 can also be controlled.

In some embodiments, as shown in fig. 6, the output 1333 of the output line 133 is provided with a first conductivity detection assembly 30, and the control assembly 20 can detect conductivity data of the outlet water of the household water purifier through the first conductivity detection assembly 30.

The water quality of water at the corresponding position can be detected through the conductivity detection component. 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, when the conductivity data of the outlet water of the household water purifier is greater than the target conductivity, the control module 20 controls the power supply module 10 to increase the output voltage to increase the desalination efficiency of the single-channel desalination module 110 and decrease the conductivity of the inlet water at the first inlet end 1331 of the output line 133, so that the conductivity data can be decreased to the target conductivity.

Illustratively, when the conductivity data of the outlet water of the household water purifier is less than the target conductivity, the control component 20 controls the power supply component 10 to decrease the output voltage to decrease the desalination efficiency of the single-channel desalination component 110 and increase the conductivity of the inlet water at the first inlet end 1331 of the output line 133, so that the conductivity data can be increased to the target conductivity. It can be understood that reducing the output voltage can reduce energy consumption on the basis of meeting the water quality requirement of the used water.

For example, as shown in fig. 6, a second conductivity detection module 40 may be disposed on the first pipeline 131, and/or a third conductivity detection module 50 may be disposed between the first water outlet 112 and the first water inlet end 1331, and the second conductivity detection module 40 and/or the third conductivity detection module 50 are connected to the control module 20.

Specifically, the second conductivity detection module 40 can detect the quality of the water supplied to the single channel desalination module 110, i.e., the quality of the water that needs to be purified by the single channel desalination module 110, such as the conductivity data of the raw water tank 140.

Specifically, the third conductivity detection module 50 is capable of detecting the quality of the water purified by the single channel desalination module 110.

For example, the control module 20 may control the output voltage of the power supply module 10 according to the conductivity data of the outlet water of the household water purifier and the conductivity data detected by the second conductivity detection module 40 and/or the third conductivity detection module 50.

For example, when the conductivity data detected by the second conductivity detection assembly 40 increases, the output voltage of the power supply assembly 10 may be controlled to decrease; to stabilize the quality of the effluent from the single channel desalination module 110.

For example, the conductivity data of the effluent from the single channel desalination module 110 that is needed can be determined based on the conductivity data of the effluent from the domestic water purification apparatus detected by the first conductivity detection module 30 and the difference or ratio of the target point to green, and then the adjustment amplitude of the output voltage of the power module 10 can be determined based on the conductivity data of the effluent from the single channel desalination module 110 that is needed and the conductivity data detected by the third conductivity detection module 50.

In some embodiments, as shown in fig. 2 and 7, a drive assembly 60 is disposed on the first conduit 131, and the drive assembly 60 adjusts the flow rate of the water supplied to the single channel desalination assembly 110 to adjust the conductivity of the water exiting the first water outlet 112.

Illustratively, the drive assembly 60 may comprise, for example, a self-primer pump or the like.

Illustratively, the single channel desalination module 110 has different purification efficiency at different flow rates of the incoming water and outputs water of different conductivity. For example, when the drive assembly 60 adjusts the flow rate of the water supplied to the single-channel desalination assembly 110 high, the conductivity of the water exiting the first water outlet 112 of the single-channel desalination assembly 110 increases; when the drive assembly 60 adjusts the flow rate of the water supplied to the single channel desalination assembly 110 to a lower value, the conductivity of the water exiting the first water outlet 112 of the single channel desalination assembly 110 decreases, and a more complete purification process can be achieved.

Thus, the flow rate of water supplied to the single channel desalination module 110 can be adjusted by the drive module 60 to adjust the quality of the outlet water from the domestic water purification apparatus.

Illustratively, a flow meter 70 is connected between the first water outlet 112 and the first water inlet 1331, and the flow meter 70 is used to detect the flow rate of the water exiting the single channel desalination assembly 110.

Specifically, as shown in FIG. 3, the flow meter 70 and the drive assembly 60 can be coupled to the control assembly 20, and the control assembly 20 can adjust the drive assembly 60 based on the feedback from the flow meter 70 to cause the single-channel desalination assembly 110 to output a flow rate of water to the output line 133.

Illustratively, as shown in fig. 7, the pure water tank 120 is provided with a fourth conductivity detection assembly 80 for detecting the conductivity of the water in the pure water tank 120.

Specifically, as shown in FIG. 3, the fourth conductivity detection module 80 is also connected to the control module 20, and the control module 20 can determine the target flow rate of the effluent from the single channel desalination module 110 according to the conductivity data detected by the third conductivity detection module 50 between the first water outlet 112 and the first water inlet 1331 and the fourth conductivity detection module 80 of the pure water tank 120. For example, the target flow rate of the effluent from the single channel desalination module 110 can be determined based on the ratio of the conductivity data detected by the third conductivity detection module 50 and the fourth conductivity detection module 80, and the flow rate of the effluent from the pure water tank 120, and then the drive module 60 can be controlled to bring the flow rate of the effluent from the single channel desalination module 110 to the target flow rate, so that the conductivity data of the effluent from the domestic water purifier can reach the target conductivity.

Illustratively, the output 1333 of the output line 133 is provided with a first conductivity detection assembly 30, and the control assembly 20 is capable of detecting conductivity data of the outlet water of the household water purifier through the first conductivity detection assembly 30.

Illustratively, when the conductivity data of the household purifier effluent is greater than the target conductivity, the drive assembly 60 reduces the flow rate of the water supplied to the single-channel desalination assembly 110; to reduce the conductivity of the incoming water at the first water inlet end 1331 of the outlet line 133 so that the conductivity data can be reduced to the target conductivity.

Illustratively, when the conductivity data of the household purifier effluent is less than the target conductivity, the drive assembly 60 increases the flow rate of the water supplied to the single channel desalination assembly 110; to increase the conductivity of the incoming water at the first water inlet end 1331 of the output line 133 so that the conductivity data can be increased to the target conductivity. It will be appreciated that the flow rate of the effluent may be greater at this time.

In some embodiments, as shown in fig. 2, 6, and 7, a second valve assembly 150 may be provided between the single channel desalination assembly 110 and the first water inlet end 1331, for example, the second valve assembly 150 may be connected to the control assembly 20.

Illustratively, the control assembly 20 is capable of controlling the second valve assembly 150 to direct water output from the first water outlet 112 to the second conduit 132 such that purified water flows to the deionized water tank 120.

For example, the second valve assembly 150 may include a three-way valve, or a plurality of two-way valves.

Illustratively, when the single channel desalination module 110 applies a positive voltage, the second valve assembly 150 directs the water from the first outlet port 112 to the second conduit 132 to allow the treated water to flow into the pure water tank 120.

For example, the control module 20 may control the power module 10 to apply a positive voltage to the single channel desalination module 110 while simultaneously controlling the second valve assembly 150 to direct water from the first water outlet 112 to the second conduit 132.

In some embodiments, as shown in fig. 2, the domestic water purification device further comprises a waste water tank 160.

Illustratively, the single-channel desalination module 110 adsorbs more salts after a period of clean water, requiring regeneration of the single-channel desalination module 110. The concentrate produced when the single channel desalination module 110 is being regenerated can be stored in a waste water tank 160.

Illustratively, the single-channel desalination assembly 110 is regenerated when the current time is a predetermined time, such as 7 am.

Illustratively, the single channel desalination assembly 110 is regenerated when the current time is a preset value away from the last regeneration.

Illustratively, the single channel desalination assembly 110 is regenerated when the conductivity data detected by the third conductivity detection assembly 50 between the first water outlet 112 and the first water inlet 1331 is above the conductivity threshold for a predetermined duration.

For example, when the duration of time that the conductivity data detected by the third conductivity detection assembly 50 is above the conductivity threshold exceeds a predetermined duration, such as 10 hours, it can be determined that the single channel desalination assembly 110 requires regeneration.

Illustratively, during regeneration of the single channel desalination assembly 110, the single channel desalination assembly 110 can be de-energized or energized in the opposite direction, while the second valve assembly 150 is enabled to direct water exiting the first water outlet 112 to the waste water tank 160.

For example, during regeneration of the single channel desalination assembly 110, the control assembly 20 controls the power supply assembly 10 to de-energize or apply a reverse voltage to the single channel desalination assembly 110 and controls the second valve assembly 150 to direct water from the second water outlet 122 to the waste tank 160.

Illustratively, as shown in FIG. 5, when a voltage is applied in the opposite direction, the single-channel desalination assembly 110 releases the adsorbed salt species, which are washed out by the water flowing in from the second water inlet 121, and regeneration is achieved.

In some embodiments, the single-channel desalination assembly 110 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 110 can be removed and flushed as needed to regenerate the filter elements of the single-channel desalination assembly 110.

In some embodiments, the single-channel desalination assembly 110 is removably received within the interior of the domestic water purification apparatus such that the single-channel desalination assembly 110 can be removed from the domestic water purification apparatus for flushing when desired, thereby allowing regeneration of the filter elements of the single-channel desalination assembly 110.

In some embodiments, as shown in fig. 2, the piping system 130 further comprises a filter assembly 136 disposed on the piping system 130.

Illustratively, as shown in fig. 2, a filtering assembly 136 may be disposed on the first pipeline 131 between the raw water tank 140 and the single-channel desalination assembly 110, so as to perform a certain purification treatment on the water entering the single-channel desalination assembly 110, for example, to remove substances that may contain particulate impurities, residual chlorine, etc., so as to reduce the workload and consumption of the single-channel desalination assembly 110, and prolong the regeneration period and service life thereof.

Illustratively, a filtering component 136 may be disposed between the single-channel desalination component 110 and the output pipeline 133, or a filtering component 136 may be disposed on the second pipeline 132 and/or the water outlet pipeline 134, so as to further improve the quality of the outlet water and improve the taste.

Illustratively, the filter assembly 136 may include a PP cotton filter element and/or an activated carbon filter element, among others.

Illustratively, the filtration precision of the filter assembly 136 is no greater than 5 microns.

The domestic purifier that the above-mentioned embodiment of this specification provided includes: the single-channel desalination assembly comprises a first water inlet and a first water outlet, when positive voltage is applied, water flowing into the first water inlet is purified, and the treated water flows out through the first water outlet; the pure water tank comprises a second water inlet and a second water outlet and can store water; the pipeline system comprises a first pipeline and a second pipeline; the first pipeline is connected with the first water inlet and used for supplying water to the first water inlet; the second pipeline is connected between the first water outlet and the second water inlet and is used for conveying the water treated by the single-channel desalination assembly to the pure water tank; the pipeline system also comprises an output pipeline, wherein a first water inlet end of the output pipeline is connected with the first water outlet, and a second water inlet end of the output pipeline is connected with the second water outlet; when the household water purifying device discharges water, the output pipeline outputs the water discharged from the first water outlet and the second water outlet after mixing, so as to output water with the conductivity data equal to the target conductivity. When the single-channel desalting component is used for purifying water flowing through, no waste water is discharged, so that the utilization rate of water is improved; the pure water of certain quality of water is saved in the pure water case, can be exported by the output after mixing the water that first delivery port and second delivery port flow out through output pipeline, can realize the regulation of domestic purifier play water quality of water, and the water yield can be bigger.

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.

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;

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

4. The domestic water purification apparatus of claim 1, wherein the output end of said output pipeline is connected to a plurality of water outlet pipelines, and wherein at least one of said water outlet pipelines is provided with a heating unit.

5. The domestic water purification apparatus of claim 1, further comprising a power supply module, wherein the power supply module is connected to the single-channel desalination module;

the power supply assembly adjusts a voltage to power the single channel desalination assembly to adjust the conductivity of the water exiting the first water outlet.

6. The household water purifying device as claimed in claim 5, further comprising a control component connected to the power supply component, wherein the output end of the output pipeline is provided with a first conductivity detection component, and the control component detects conductivity data of the outlet water of the household water purifying device through the first conductivity detection component;

when the conductivity data of the outlet water of the household water purifying device is larger than the target conductivity, the control component controls the power supply component to increase the output voltage; and/or when the conductivity data of the outlet water of the household water purifying device is smaller than the target conductivity, the control component controls the power supply component to reduce the output voltage.

7. The domestic water purification device of claim 6, wherein a second conductivity detection module is provided on the first pipeline, and/or a third conductivity detection module is provided between the first water outlet and the first water inlet end, the second conductivity detection module and/or the third conductivity detection module being connected to the control module;

the control component controls the output voltage of the power supply component according to the conductivity data of the outlet water of the household water purifying device and the conductivity data detected by the second conductivity detection component and/or the third conductivity detection component.

8. The domestic water purification apparatus of any one of claims 1-7, wherein a drive assembly is provided on said first conduit, said drive assembly adjusting the flow rate of water supplied to said single channel desalination assembly to adjust the conductivity of water exiting said first water outlet.

9. The domestic water purification apparatus of claim 8, wherein a flow meter is connected between said first water outlet and said first water inlet, said flow meter being adapted to detect the flow rate of water exiting said single-channel desalination assembly;

when the conductivity data of the outlet water of the household water purifier is larger than the target conductivity, the driving component reduces the flow rate of the water supplied to the single-channel desalination component; and/or the drive assembly increases the flow rate of water supplied to the single channel desalination assembly when the conductivity data of the effluent of the domestic water purification device is less than a target conductivity.

10. The domestic water purification apparatus of claim 9, wherein said deionized water tank is provided with a fourth conductivity detection module for detecting the conductivity of the water in said deionized water tank.

11. The domestic water purification apparatus of any one of claims 1-7, wherein the outlet line comprises a first valve assembly capable of opening or closing the outlet of the first outlet to the outlet end of the outlet line.

12. The domestic water purification apparatus of any one of claims 1-7, wherein a second valve assembly is provided between the single channel desalination assembly and the first water inlet end;

when the single-channel desalination assembly applies positive voltage, the second valve assembly guides water flowing out of the first water outlet to the second pipeline, so that the treated water flows into the pure water tank.

13. The domestic water purification apparatus of claim 12, further comprising a waste water tank;

when the single-channel desalination assembly is de-energized or a voltage in the opposite direction is applied, the second valve assembly directs water exiting the first water outlet to the waste tank.

14. The domestic water purification apparatus of any one of claims 1-7, wherein the pipe system further comprises a filter assembly disposed on the pipe system;

the filtration precision of the filter assembly is not more than 5 microns.