CN113402075A

CN113402075A - Household water purifying device

Info

Publication number: CN113402075A
Application number: CN202010183372.8A
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 raw water tank, a single-channel desalting component, a pure water tank and a pipeline system; the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, the first pipeline is connected with the raw water tank and the desalination assembly, the second pipeline is connected with the raw water tank, and the third pipeline is connected with the desalination assembly and the pure water tank; the pipeline system also comprises a conductivity detection component and a valve component for detecting the conductivity of the effluent of the desalination component; when the electric conductivity does not reach the target electric conductivity, the valve assembly guides the water flowing out of the second water outlet to the second pipeline; when the conductivity reaches the target conductivity, the valve assembly guides the water flowing out of the second water outlet to the third pipeline. When the desalination assembly is used for purifying the flowing water, no waste water is discharged, so that the utilization rate of the water is improved; and the pure water meeting the water quality requirement is stored in the pure water tank, the flow rate of the outlet water can not be limited by the desalting component, and the flow rate of the outlet water 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 raw water tank comprises a first water outlet and a first water inlet and can store water;

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

the pure water tank comprises a third water inlet;

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

the pipeline system further comprises a first conductivity detection assembly and a first valve assembly, wherein the first conductivity detection assembly is used for detecting first conductivity data of water flowing out of the second water outlet; when the first conductivity data does not reach the target conductivity, the first valve assembly guides the water flowing out of the second water outlet to the second pipeline; when the first conductivity data reaches the target conductivity, the first valve assembly guides the water flowing out of the second water outlet to the third pipeline.

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.

Exemplarily, the household water purifying device further comprises a water outlet pipeline, the water outlet pipeline is connected with the pure water tank, the water outlet pipeline comprises a water outlet valve, and when the water outlet valve is opened, water in the pure water tank is output.

Illustratively, the number of the water outlet pipelines comprises a plurality, and a heating unit is arranged on at least one water outlet pipeline.

Illustratively, the household water purifying device further comprises a control component and a power supply component, wherein the control component is connected with the power supply component, the first conductivity detection component and the first valve component, and the power supply component is connected with the single-channel desalination component.

Illustratively, a second valve assembly is arranged between the single-channel desalination assembly and the first valve assembly, and the second valve assembly is connected with the control assembly;

the control component controls the power supply component to apply positive voltage to the single-channel desalination component and also controls the second valve component to guide water flowing out of the second water outlet to the first valve component.

Exemplarily, the domestic water purification device further comprises a waste water tank;

and when the current time is a preset time and/or the first conductivity data lasts for a preset time and does not reach the target conductivity, the control component controls the power supply component to cut off the power supply to the single-channel desalination component or apply a voltage in the opposite direction, and controls the second valve component to guide the water flowing out of the second water outlet to the waste water tank.

Illustratively, a second conductivity detection component and a flow detection component are arranged on the first pipeline, and both the second conductivity detection component and the flow detection component are connected to the control component.

Illustratively, the control component determines a consumption value of the single channel desalination component based on the first conductivity data detected by the first conductivity detection component, the second conductivity data detected by the second conductivity detection component, and the flow data detected by the flow detection component, and controls the power supply component to disconnect power to the single channel desalination component or apply a reverse voltage to the single channel desalination component when the consumption value is not less than a consumption threshold.

Illustratively, upon de-energizing the single channel desalination assembly or applying a reverse voltage to the single channel desalination assembly, the control assembly determines the regeneration effect of the single channel desalination assembly based on the conductivity data detected by the first conductivity detection assembly and the flow rate data detected by the flow rate detection assembly.

For example, a driving assembly is arranged on at least one of the first pipeline, the second pipeline and the third pipeline, and the driving assembly drives water to flow in the pipeline system.

Illustratively, the piping system further comprises a filter assembly disposed on the piping system.

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

The application discloses domestic purifier includes: the raw water tank comprises a first water outlet and a first water inlet; a single-channel desalination assembly comprising a second water inlet and a second water outlet; the pure water tank comprises a third water inlet; the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, wherein the first pipeline is connected between the first water outlet and the second water inlet, the second pipeline is connected between the second water outlet and the first water inlet, and the third pipeline is connected between the second water outlet and the third water inlet; the pipeline system also comprises a first conductivity detection assembly and a first valve assembly, wherein the first conductivity detection assembly is used for detecting first conductivity data of water flowing out of the second water outlet; when the first conductivity data does not reach the target conductivity, the first valve assembly guides water flowing out of the second water outlet to the second pipeline; when the first conductivity data reaches the target conductivity, the first valve assembly guides the water flowing out of the second water outlet to the third pipeline. 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; and the pure water that will accord with demand quality of water is saved in the pure water case, and the velocity of flow of play water can not receive the restriction of single channel desalination subassembly, and the velocity of flow of play water can be bigger, waits for longer time when avoiding the user to receive the water.

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 view of the connection relationship of the parts in the household water purifying device.

Reference numerals: 110. a raw water tank; 111. a first water outlet; 112. a first water inlet; 120. a single-channel desalination assembly; 121. a second water inlet; 122. a second water outlet; 130. a pure water tank; 131. a third water inlet; 140. a piping system; 141. a first pipeline; 142. a second pipeline; 143. a third pipeline; 145. a first valve assembly; 146. a second valve component; 150. a water outlet pipeline; 151. a water outlet valve; 152. discharging the water pump; 153. a heating unit; 160. a wastewater tank; 170. a drive assembly; 180. a filter assembly;

10. a first conductivity detection assembly; 20. a control component; 30. a power supply assembly; 40. a second conductivity detection component; 50. a flow 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 raw water tank 110, a single-channel desalination module 120, a pure water tank 130, and a pipeline system 140.

Specifically, as shown in fig. 1, the raw water tank 110 includes a first water outlet 111 and a first water inlet 112, and is capable of storing water.

Illustratively, the raw water tank 110 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 110.

Illustratively, the raw water tank 110 may further include a water injection port through which water to be purified may be added to the raw water tank 110. For example, the water filling port is connected with a tap water pipe. Illustratively, a liquid level meter is further disposed in the raw water tank 110, and when the liquid level in the raw water tank 110 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 raw water tank 110.

Therein, the single channel desalination assembly 120 comprises a second water inlet 121 and a second water outlet 122. Specifically, when a voltage in a positive direction is applied, the single channel desalination module 120 purifies the water flowing in from the second water inlet 121, and the treated water flows out from the second water outlet 122.

Specifically, the pure water tank 130 of the household water purification apparatus is used for storing the pure water purified by the single channel desalination module 120.

Specifically, the pure water tank 130 includes a third water inlet 131, pure water purified by the single channel desalination module 120 may be injected into the pure water tank 130 through the third water inlet 131, and a user may obtain purified water from the pure water tank 130.

As shown in fig. 1, the pipe system 140 includes a first pipe 141, a second pipe 142, and a third pipe 143.

Wherein, the first pipeline 141 is connected between the first water outlet 111 and the second water inlet 121, the second pipeline 142 is connected between the second water outlet 122 and the first water inlet 112, and the third pipeline 143 is connected between the second water outlet 122 and the third water inlet 131.

For example, the water stored in the raw water tank 110 may flow into the single channel desalination module 120 through the first pipe 141, and when the single channel desalination module 120 applies a positive voltage, the flowing water is purified, and the purified water is output from the second water outlet 122 of the single channel desalination module 120.

Specifically, as shown in fig. 1, the pipeline system 140 further includes a first valve assembly 145, and the first valve assembly 145 can switch the water output from the second water outlet 122 to flow to the second pipeline 142 or to flow to the third pipeline 143.

Illustratively, the first valve assembly 145 comprises a three-way valve having an inlet connected to the output of the second outlet 122 of the single channel desalination assembly 120, one of two outlets connected to the second line 142 leading to the raw water tank 110, and the other connected to the third line 143 leading to the purified water tank 130.

For example, the first valve assembly 145 may include a plurality of valves, and may switch the water output from the second water outlet 122 to flow to the second pipeline 142 or to flow to the third pipeline 143.

In the embodiment of the present invention, as shown in fig. 1, the pipe system 140 further includes a first conductivity detection assembly 10, and the first conductivity detection assembly 10 is used for detecting first conductivity data of the water flowing out of the second water outlet 122.

For example, the first conductivity data may be provided between the second outlet 122 and the first valve assembly 145. Alternatively, the first conductivity detection module 10 is disposed on the second pipe 142 and the third pipe 143, respectively.

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.

By detecting the conductivity of the effluent at the effluent side of the single channel desalination module 120, it can be determined whether the quality of the effluent from the single channel desalination module 120 is satisfactory.

Specifically, when the first conductivity data does not reach the target conductivity, the first valve assembly 145 directs the water flowing out of the second water outlet 122 to the second pipeline 142; when the first conductivity data reaches the target conductivity, the first valve assembly 145 directs the water flowing out of the second water outlet 122 to the third pipe 143.

For example, the water stored in the raw water tank 110 may flow into the single channel desalination module 120 through the first pipe 141, and when the single channel desalination module 120 applies a positive voltage, the flowing water is purified, and the purified water is output from the second water outlet 122 of the single channel desalination module 120; meanwhile, the water quality of the water output from the second water outlet 122 is monitored in real time, and if the water quality does not meet the requirement, the water output from the second water outlet 122 is introduced into the raw water tank 110, so that the single-channel desalination assembly 120 repeatedly performs purification treatment on the water in the raw water tank 110.

For example, after the water in the raw water tank 110 is purified by passing through the single-channel desalination module 120 several times, the raw water tank 110 is increasingly clean, for example, the raw water tank 110 is increasingly cleaned by the single-channel desalination module 120 several times, so that the quality of the water in the raw water tank 110 is increasingly better, and when the first conductivity data of the water in the raw water tank 110 after entering the single-channel desalination module 120 for purification reaches the target conductivity at a certain time, it can be determined that the quality of the water flowing out of the single-channel desalination module 120 can meet the requirement, and the first valve assembly 145 can be enabled to guide the water flowing out of the second water outlet 122 to the pure water tank 130 connected to the third pipeline 143, so that the user can obtain pure water from the pure water tank 130.

As can be appreciated, the single-channel desalination assembly 120 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 120 can, of course, also include other water inlets and/or outlets. For example, when the single-channel desalination module 120 is flushed and regenerated, the generated wastewater can be discharged through the water outlet. When the single-channel desalination assembly 120 is performing purification treatment on the flowing water, the other water inlets and/or water outlets except the second water inlet 121 and the second water outlet 122 can be closed, so as to form a single-channel structure.

The single channel desalination module 120 may not discharge wastewater when purifying the water flowing through it. 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 120 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 120 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, 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.

In some embodiments, the deionized water tank 130 includes a transparent housing or a transparent window is provided on the housing to facilitate a user to view the water quality, water level, etc. in the deionized water tank 130.

When a user needs to obtain pure water from the household water purifying device, the influence of the purification efficiency of the single-channel desalination assembly 120 can be avoided, and more pure water can be quickly obtained. Meanwhile, the specification of the single-channel desalination assembly 120 can be made smaller, so that the cost can be saved while water taking of a user is not influenced.

In some embodiments, a liquid level meter may be disposed in the pure water tank 130, when the water level in the pure water tank 130 is higher than a preset water level, the first valve assembly 145 may stop directing the water flowing out from the second water outlet 122 to the pure water tank 130 connected to the third pipeline 143, and the single channel desalination assembly 120 may also be controlled to stop operating, so as to save energy consumption; when the water level in the deionized water tank 130 is lower than the preset water level, the first valve assembly 145 can guide the water flowing out from the second water outlet 122 to the deionized water tank 130 connected to the third pipeline 143, so that the deionized water tank 130 can store enough clean water.

Illustratively, as shown in FIG. 4, the household water purifier further comprises a water outlet pipeline 150, the water outlet pipeline 150 is connected to the purified water tank 130, and the water outlet pipeline 150 may comprise a water outlet valve 151, and when the water outlet valve 151 is opened, the water in the purified water tank 130 is output.

Illustratively, as shown in fig. 5, the household water purifying apparatus 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 151 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 151 of the water outlet pipeline 150 is controlled to open, so that the water in the pure water tank 130 is output via the water outlet valve 151.

For example, as shown in fig. 4, a water outlet pump 152 is disposed on the water outlet pipeline 150, and the water outlet pump 152 may be connected to the control assembly 20. For example, when the control module 20 detects the water outlet control operation through the input device, the water outlet valve 151 and the water outlet pump 152 are controlled to open, so as to speed up the water receiving and reduce the waiting time for the user to receive the water.

In some embodiments, the water outlet direction of the water outlet pipeline 150 may also be connected with a heating unit 153, and the heating unit 153 includes a heat exchanger, for example. The heating unit 153 may heat the water flowing out of the water outlet line 150 to provide the user with hot water of a desired temperature.

Illustratively, the number of the water outlet pipes 150 includes a plurality, and at least one of the water outlet pipes 150 is provided with a heating unit 153.

In some embodiments, as shown in fig. 5, the household water purifying apparatus further comprises a power supply assembly 30, the control assembly 20 is connected to the power supply assembly 30, the first conductivity detection assembly 10 and the first valve assembly 145, and the power supply assembly 30 is connected to the single channel desalination assembly 120.

Illustratively, the control module 20 detects first conductivity data of the water flowing out of the second water outlet 122 through the first conductivity detection module 10, and determines whether the first conductivity data reaches a target conductivity.

For example, the target conductivity may be stored in the memory of the control component 20 in advance, or the control component 20 may determine the target conductivity according to a setting operation of a user. When the conductivity of the water reaches the target conductivity, the water can be determined to be sufficiently pure, for example, to meet drinking standards.

For example, if the first conductivity data of the water flowing out of the second water outlet 122 is detected to drop to a smaller value and remain approximately stable for a certain period of time, it can be determined that the first conductivity data at this time reaches the target conductivity.

For example, the control assembly 20 can control the first valve assembly 145 to switch the water output from the second water outlet 122 to the second pipe 142 or to the third pipe 143.

For example, the control assembly 20 may control the power supply assembly 30 to apply a voltage in a forward direction, a voltage in a reverse direction, or to de-energize the single channel desalination assembly 120 to the single channel desalination assembly 120.

In some embodiments, the voltage supplied by the power supply assembly 30 to the single channel desalination assembly 120 can be adjusted, and the desalination rate of the single channel desalination assembly 120 changes as the voltage supplied by the power supply assembly 30 is adjusted.

For example, according to the water quality of the region where the household water purifying apparatus is used, the operation voltage of the single channel desalination module 120 adapted to the water quality may be set, so that the water quality after a suitable purification time or after a suitable number of purification cycles may meet the requirement. For example, when the quality of water supplied from a tap water pipe is hard, the power supply voltage of the power supply module 30 may be set high; when the water quality of the water supplied from the water supply pipe is soft, the power supply voltage of the power supply module 30 can be set low.

In some embodiments, as shown in fig. 4 and 5, a second valve assembly 146 is disposed between the single channel desalination assembly 120 and the first valve assembly 145, the second valve assembly 146 being connected to the control assembly 20.

Illustratively, the control assembly 20 can control the second valve assembly 146 to direct water output from the second water outlet 122 to the first valve assembly 145, such that the first valve assembly 145 switches the water output from the second water outlet 122 to flow to the second pipe 142 or to flow to the third pipe 143.

For example, the second valve assembly 146 may include a three-way valve, or a plurality of two-way valves.

Illustratively, the control module 20 controls the power supply module 30 to apply a voltage in a positive direction to the single channel desalination module 120, and also controls the second valve assembly 146 to direct water exiting the second water outlet 122 to the first valve assembly 145. Such that water purified by the single channel desalination assembly 120 can flow through the first valve assembly 145 to the second conduit 142 or to the third conduit 143.

In some embodiments, as shown in fig. 4, the domestic water purification device further comprises a waste water tank 160.

Illustratively, the single-channel desalination module 120 adsorbs more salts after a period of clean water, requiring regeneration of the single-channel desalination module 120. The concentrate produced when regenerating the single channel desalination module 120 can be stored in a waste water tank 160.

Illustratively, the single-channel desalination assembly 120 is regenerated when the current time is a predetermined time, such as 7 am.

Illustratively, the single channel desalination assembly 120 is regenerated when the time interval between the current time and the last regeneration process is a preset value.

Illustratively, the single channel desalination assembly 120 is regenerated if the first conductivity data does not reach the target conductivity for a preset duration.

For example, when the duration of the conductivity data detected by the first conductivity detection assembly 10 is not less than the target conductivity for more than a predetermined period of time, such as 10 hours, it can be determined that the single channel desalination assembly 120 requires regeneration.

Illustratively, the control module 20 controls the power supply module 30 to de-energize or apply a reverse voltage to the single channel desalination module 120 and controls the second valve assembly 146 to direct water from the second water outlet 122 to the waste tank 160 during regeneration of the single channel desalination module 120.

Illustratively, as shown in FIG. 3, when a voltage is applied in the opposite direction, the single-channel desalination assembly 120 releases the adsorbed salt species, which are washed out by the water flowing in from the second water inlet 121, and thus regeneration is achieved.

In some embodiments, the single-channel desalination assembly 120 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 120 can be removed and flushed as needed to regenerate the filter elements of the single-channel desalination assembly 120.

In some embodiments, the single-channel desalination assembly 120 is removably received within the interior of the domestic water purification apparatus such that the single-channel desalination assembly 120 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 120.

In some embodiments, a driving assembly 170 is disposed on at least one of the first, second, and

third pipes

141, 142, 143, and the driving assembly 170 drives water to flow in the pipe system 140.

Illustratively, as shown in fig. 5, the driving assembly 170 is connected to the control assembly 20, and the control assembly 20 can control the start and stop of the driving assembly 170 and can also control the driving assembly 170 to adjust the flow rate of the water.

Illustratively, the drive assembly 170 may comprise, for example, a self-primer pump or the like.

Illustratively, as shown in FIG. 4, a driving assembly 170 may be disposed on the first line 141 between the raw water tank 110 and the single channel desalination assembly 120, and may drive the water in the raw water tank 110 to flow to the single channel desalination assembly 120 for purification treatment, and the purified water to flow back to the raw water tank 110 or to the pure water tank 130. The drive assembly 170 may drive the water in the raw water tank 110 to the single-channel desalination assembly 120 to flush the salt species in the single-channel desalination assembly 120 when the single-channel desalination assembly 120 is undergoing a regeneration process.

In some embodiments, as shown in fig. 4, the tubing 140 further includes a filter assembly 180 disposed on the tubing 140.

Illustratively, as shown in fig. 5, a filtering assembly 180 may be disposed on the first pipe 141 between the raw water tank 110 and the single-channel desalination assembly 120, so as to perform a certain purification treatment on the water entering the single-channel desalination assembly 120, 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 120, and prolong the regeneration cycle and service life thereof.

For example, a filtering assembly 180 may be disposed between the single-channel desalination assembly 120 and the first valve assembly 145, or a filtering assembly 180 may be disposed on the second pipeline 142 and/or the third pipeline 143, so as to further improve the quality of the effluent and improve the taste.

Illustratively, the filter assembly 180 may include a PP cotton filter element and/or an activated carbon filter element, among others.

Illustratively, the filtration precision of the filter assembly 180 is no greater than 5 microns, preferably within 1 micron.

In some embodiments, as shown in fig. 4, a second conductivity detection module 40 may be disposed on the first pipeline 141, and the second conductivity detection module 40 may be capable of detecting the quality of the water supplied to the single channel desalination module 120 from the raw water tank 110, i.e. the quality of the water requiring the purification treatment of the single channel desalination module 120, for example, detecting the second conductivity data of the water discharged from the raw water tank 110.

Illustratively, as shown in fig. 5, the second conductivity detection module 40 is coupled to the control module 20.

For example, the control assembly 20 can control the power supply assembly 30 to adjust the power supply voltage to the single channel desalination assembly 120 based on the second conductivity data detected by the second conductivity detection assembly 40. For example, the greater the second conductivity data, the greater the voltage of the forward voltage applied by the power supply assembly 30 to the single channel desalination assembly 120 to increase the efficiency of the purification process.

In some embodiments, as shown in fig. 4 and 5, a flow rate detection assembly 50 may be further disposed on the first pipeline 141, and the flow rate detection assembly 50 is connected to the control assembly 20.

Illustratively, the control assembly 20 can determine the consumption value of the single channel desalination assembly 120 based on the first conductivity data detected by the first conductivity detection assembly 10, the second conductivity data detected by the second conductivity detection assembly 40, and the flow data detected by the flow detection assembly 50. For example, the desalination throughput of the single channel desalination assembly 120 can be determined from conductivity data of the water flowing into the single channel desalination assembly 120 and conductivity data of the water flowing out of the single channel desalination assembly 120, and as the flow rate of the water being processed by the single channel desalination assembly 120 accumulates, the total amount of adsorbed salt species in the single channel desalination assembly 120 can be determined, which can represent a consumption value of the single channel desalination assembly 120.

Illustratively, the control assembly 20 can control the power supply assembly 30 to de-energize the single channel desalination assembly 120 or apply a reverse voltage to the single channel desalination assembly 120 while controlling the second valve assembly 146 to direct water exiting the second water outlet 122 to the waste tank 160 when the consumption value is not less than the consumption threshold.

For example, when the salt absorption capacity of the single-channel desalination assembly 120 is Q, the depletion threshold can be determined to be 0.75Q; when the cumulative consumption value of the single-channel desalination assembly 120 reaches the consumption threshold, the regeneration mode is switched to regenerate the single-channel desalination assembly 120 to restore the salt absorption capacity of the single-channel desalination assembly 120. For example, the control assembly 20 may control the power supply assembly 30 to de-energize or apply a voltage in the opposite direction to the single channel desalination assembly 120 and control the second valve assembly 146 to direct water exiting the second water outlet 122 to the waste water tank 160.

Illustratively, upon de-energizing the single channel desalination assembly 120 or applying a reverse voltage to the single channel desalination assembly 120, the control assembly 20 can determine the regeneration effect of the single channel desalination assembly 120 based on the first conductivity data detected by the first conductivity detection assembly 10 and the flow data detected by the flow detection assembly 50.

Illustratively, water after flushing the single channel desalination assembly 120 can have first conductivity data of the water detected by the first conductivity detection assembly 10. When the first conductivity data detected by the first conductivity detection assembly 10 is less than the predetermined conductivity, it can be determined that the saline material in the single channel desalination assembly 120 is flushed, and the regeneration mode can be terminated, e.g., the application of a forward voltage to the single channel desalination assembly 120 can be resumed.

Illustratively, the control assembly 20 can determine the regeneration effect of the single channel desalination assembly 120 based on the first conductivity data detected by the first conductivity detection assembly 10 and the flow rate data detected by the flow rate detection assembly 50. The amount of salt species released during the process of flushing the single-channel desalination assembly 120 can thus be determined, for example, the regeneration mode can be terminated when the amount of released salt species reaches a predetermined release threshold, such as 80% -150% of the salt absorption capacity Q.

The domestic purifier that the above-mentioned embodiment of this specification provided includes: the raw water tank comprises a first water outlet and a first water inlet; a single-channel desalination assembly comprising a second water inlet and a second water outlet; the pure water tank comprises a third water inlet; the pipeline system comprises a first pipeline, a second pipeline and a third pipeline, wherein the first pipeline is connected between the first water outlet and the second water inlet, the second pipeline is connected between the second water outlet and the first water inlet, and the third pipeline is connected between the second water outlet and the third water inlet; the pipeline system also comprises a first conductivity detection assembly and a first valve assembly, wherein the first conductivity detection assembly is used for detecting first conductivity data of water flowing out of the second water outlet; when the first conductivity data does not reach the target conductivity, the first valve assembly guides water flowing out of the second water outlet to the second pipeline; when the first conductivity data reaches the target conductivity, the first valve assembly guides the water flowing out of the second water outlet to the third pipeline. 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; and the pure water that will accord with demand quality of water is saved in the pure water case, and the velocity of flow of play water can not receive the restriction of single channel desalination subassembly, and the velocity of flow of play water can be bigger, waits for longer time when avoiding the user to receive the water.

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:

the pure water tank comprises a third water inlet;

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, further comprising an outlet conduit connected to said purified water tank, said outlet conduit comprising an outlet valve, wherein water in said purified water tank is output when said outlet valve is open.

5. The domestic water purification apparatus of claim 4, wherein said number of said water outlet pipes comprises a plurality, and wherein at least one of said water outlet pipes is provided with a heating unit.

6. The domestic water purification apparatus of any one of claims 1-5, further comprising a control module and a power supply module, wherein the control module is connected to the power supply module, the first conductivity detection module and the first valve assembly, and the power supply module is connected to the single-channel desalination module.

7. The domestic water purification apparatus of claim 6, wherein a second valve assembly is disposed between said single-channel desalination assembly and said first valve assembly, said second valve assembly being connected to said control assembly;

8. The domestic water purification apparatus of claim 7, further comprising a waste water tank;

9. The domestic water purification apparatus of claim 7, wherein said first pipe has a second conductivity detection module and a flow detection module, both of said second conductivity detection module and said flow detection module being connected to said control module.

10. The domestic water purification apparatus of claim 9, wherein the control module determines a consumption value of the single channel desalination module based on the first conductivity data detected by the first conductivity detection module, the second conductivity data detected by the second conductivity detection module, and the flow data detected by the flow detection module, and controls the power supply module to turn off power to the single channel desalination module or apply a reverse voltage to the single channel desalination module when the consumption value is not less than a consumption threshold.

11. The domestic water purification apparatus of claim 10, wherein the control module determines the regeneration effect of the single channel desalination assembly based on the conductivity data detected by the first conductivity detection module and the flow data detected by the flow detection module when the single channel desalination assembly is de-energized or when a reverse voltage is applied to the single channel desalination assembly.

12. The domestic water purification apparatus of any one of claims 1-5, wherein a drive assembly is provided on at least one of said first, second and third pipes, said drive assembly driving water to flow in said pipe system.

13. The domestic water purification apparatus of any one of claims 1-5, 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.