CN113493269A - Household water purifying device - Google Patents
Household water purifying device Download PDFInfo
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- CN113493269A CN113493269A CN202010252458.1A CN202010252458A CN113493269A CN 113493269 A CN113493269 A CN 113493269A CN 202010252458 A CN202010252458 A CN 202010252458A CN 113493269 A CN113493269 A CN 113493269A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 491
- 238000000746 purification Methods 0.000 claims abstract description 38
- 239000008213 purified water Substances 0.000 claims abstract description 38
- 238000011033 desalting Methods 0.000 claims abstract description 31
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000010612 desalination reaction Methods 0.000 claims description 135
- 239000012528 membrane Substances 0.000 claims description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 238000009296 electrodeionization Methods 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000002351 wastewater Substances 0.000 claims description 16
- 239000012141 concentrate Substances 0.000 claims description 15
- 238000000909 electrodialysis Methods 0.000 claims description 8
- 238000011045 prefiltration Methods 0.000 claims description 8
- 238000004375 physisorption Methods 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 3
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000003456 ion exchange resin Substances 0.000 claims description 2
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 claims description 2
- 230000002401 inhibitory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 12
- 238000005341 cation exchange Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000003011 anion exchange membrane Substances 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 8
- 150000001450 anions Chemical class 0.000 description 7
- 230000005764 inhibitory process Effects 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 6
- 239000008399 tap water Substances 0.000 description 6
- 235000020679 tap water Nutrition 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 230000035622 drinking Effects 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005342 ion exchange Methods 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000002455 scale inhibitor Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000034817 Waterborne disease Diseases 0.000 description 1
- 238000005349 anion exchange Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000007646 directional migration Effects 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001471 micro-filtration Methods 0.000 description 1
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4691—Capacitive deionisation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The application relates to the technical field of domestic water purification, specifically discloses a domestic purifier, include: the single-channel desalting component comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet, and the purified water flows out from the first water outlet; the electrically-driven double-flow-channel desalting component comprises a second water inlet, a concentrated water outlet and a second water outlet, wherein the first water outlet is communicated with the second water inlet, when the water purified by the single-flow-channel desalting component flows into the second water inlet from the first water outlet, the double-flow-channel desalting component carries out secondary purification treatment on the water flowing in from the second water inlet to obtain concentrated water and purified water, the concentrated water flows out from the concentrated water outlet, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. This application can improve quality of water and the utilization ratio of water.
Description
Technical Field
The utility model relates to a domestic water purification technical field especially relates to a domestic purifier.
Background
Along with the progress of society, the living standard of people is improved, and people pay more and more attention to the sanitation of self diet drinking water. At present, tap water is treated by a chlorination method generally, so that water-borne diseases can be effectively prevented, but the tap water contains salt, impurities, residual chlorine and the like, does not have conditions for direct drinking, and needs to be purified before drinking.
In the prior art, water can be purified by electrodialysis or reverse osmosis technology to achieve the effect of improving water quality. However, when water is purified by electrodialysis or reverse osmosis, a large amount of concentrated water is generated, and the concentrated water is generally discharged through a drain pipe, so that the utilization rate of water is low.
Disclosure of Invention
The embodiment of the application provides a domestic purifier, tentatively purifies water through single-flow-channel desalination subassembly, carries the water after tentatively purifying to electrically driven double-flow-channel desalination subassembly and carries out secondary purification treatment, can improve double-flow-channel desalination subassembly's life, also can improve the utilization ratio of quality of water and water.
The application provides a domestic purifier, domestic purifier includes:
the single-channel desalting component comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet, and the purified water flows out from the first water outlet;
the electrically-driven double-flow-channel desalting component comprises a second water inlet, a concentrated water outlet and a second water outlet, wherein the first water outlet is communicated with the second water inlet, when the water purified by the single-flow-channel desalting component flows into the second water inlet from the first water outlet, the double-flow-channel desalting component carries out secondary purification treatment on the water flowing in from the second water inlet to obtain concentrated water and purified water, the concentrated water flows out from the concentrated water outlet, and the purified water flows out from the second water outlet;
and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet.
Illustratively, the single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge; the electrically driven dual-flow desalination assembly comprises at least one of an electrodialysis unit, a reverse electrodialysis unit.
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 electrodeionization filter element.
Illustratively, the piping system includes a pre-filter assembly between the first pipe and the first water inlet, the pre-filter assembly including a PP cotton filter element and/or an activated carbon filter element.
Illustratively, the activated carbon filter element comprises a scale inhibition activated carbon filter element and a non-scale inhibition activated carbon filter element.
Illustratively, the pipeline system further comprises a third pipeline, a fourth pipeline, a fifth pipeline, a sixth pipeline, a seventh pipeline, an eighth pipeline, a first three-way valve, a second three-way valve, a third three-way valve, a first one-way valve and a second one-way valve;
the first three-way valve comprises a first valve, a second valve and a third valve, the second three-way valve comprises a fourth valve, a fifth valve and a sixth valve, the third three-way valve comprises a seventh valve, an eighth valve and a ninth valve, the first one-way valve is arranged on the fifth pipeline, and the second one-way valve is arranged on the seventh pipeline;
the first pipeline is connected with the first valve, the third pipeline is connected between the third valve and the fourth valve, the fourth pipeline is connected between the sixth valve and the first water inlet, the fifth pipeline is connected between the second valve and the second water inlet, the sixth pipeline is connected between the second water outlet and the seventh valve, the seventh pipeline is connected between the eighth valve and the first water outlet, the eighth pipeline is connected with the fifth valve, and the second pipeline is connected with the ninth valve.
Illustratively, the single-channel desalination assembly, when de-energized or reverse voltage is applied, delivers water through the first pipe, the first valve, the second valve, the fifth pipe, and the first one-way valve to the second water inlet, the double-flow-channel desalting component purifies the water flowing in from the second water inlet to obtain produced water and concentrated water, the concentrated water flows out through the concentrated water inlet, the produced water is conveyed to the first water outlet through the second water outlet, the sixth pipeline, the seventh valve, the eighth valve and the seventh pipeline, the produced water flows into the single-flow-channel desalting component through the first water outlet, the produced water flowing into the single-flow-channel desalting component through the first water outlet cleans or regenerates the single-flow-channel desalting component to obtain waste water, and the waste water is discharged to the eighth pipeline through the first water inlet, the fourth pipeline, the sixth valve and the fifth valve.
Illustratively, the pipeline system further comprises a ninth pipeline, the ninth pipeline is connected between the first water inlet and the concentrate inlet, and the ninth pipeline is used for guiding the concentrate flowing out through the concentrate inlet to the first water inlet.
Exemplarily, the household water purifying device further comprises a control component and a conductivity acquisition component, wherein the control component is connected with the conductivity acquisition component, and the conductivity acquisition component is arranged on the second pipeline and used for acquiring the conductivity of the purified water;
the control component is used for acquiring the conductivity acquired by the conductivity acquisition component and adjusting the voltage of the electrically-driven single-channel desalination component and/or the electrically-driven double-channel desalination component when the conductivity does not reach the target conductivity so as to adjust the conductivity of the water.
Illustratively, the control component is further configured to obtain the conductivity collected by the conductivity collection component, and adjust the voltage of the dual-channel desalination component to adjust the conductivity of the water when the conductivity does not reach the target conductivity and the accumulated water purification duration of the single-channel desalination component reaches a preset duration.
Exemplarily, the second pipeline includes a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline and a normal temperature pipeline, the purified water flowing out from the second water outlet flows into the second pipeline through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.
The application discloses domestic purifier includes: the single-channel desalting component comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet, and the purified water flows out from the first water outlet; the electrically-driven double-flow-channel desalting component comprises a second water inlet, a concentrated water outlet and a second water outlet, wherein the first water outlet is communicated with the second water inlet, when the water purified by the single-flow-channel desalting component flows into the second water inlet from the first water outlet, the double-flow-channel desalting component carries out secondary purification treatment on the water flowing in from the second water inlet to obtain concentrated water and purified water, the concentrated water flows out from the concentrated water outlet, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. The water is primarily purified through the single-channel desalting component, and the primarily purified water is conveyed to the electrically driven double-channel desalting component for secondary purification treatment, so that the service life of the double-channel desalting component can be prolonged, and the water quality and the water utilization rate can also be improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a household water purifying device according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a bipolar membrane electrodeionization cartridge desalination process;
FIG. 3 is a schematic diagram of the bipolar membrane electrodeionization filter regeneration process;
FIG. 4 is a schematic structural diagram of an embodiment of a household water purifying apparatus;
FIG. 5 is a schematic structural diagram of another embodiment of a household water purifying device;
FIG. 6 is a schematic structural diagram of another embodiment of a household water purifying device;
fig. 7 is a schematic view of the connection relationship of the parts in the household water purifying device.
Reference numerals: 100. a single-channel desalination assembly; 110. a first water inlet; 120. a first water outlet; 200. an electrically driven dual-flow desalination assembly; 210. a second water inlet; 220. a concentrated water outlet; 230. a second water outlet; 300. a piping system; 301. a first pipeline; 302. a second pipeline; 303. a pre-filter assembly; 304. a third pipeline; 305. a fourth pipeline; 306. a fifth pipeline; 307. a sixth pipeline; 308. a seventh pipeline; 309. an eighth pipeline; 310. a ninth conduit; 400. a first three-way valve; 410. a first valve; 420. a second valve; 430. a third valve; 500. a second three-way valve; 510. a fourth valve; 520. a fifth valve; 530. a sixth valve; 600. a third three-way valve; 610. a seventh valve; 620. an eighth valve; 630. a ninth valve; 700. a first check valve; 800. a second one-way valve; 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; 10. a first conductivity acquisition component; 20. a second conductivity acquisition component; 30. a power supply assembly; 40. and a control component.
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, a household water purification apparatus includes a single-channel desalination module 100, an electrically driven double-channel desalination module 200, and a piping system 300.
Specifically, as shown in fig. 1, the single-channel desalination assembly 100 comprises a first water inlet 110 and a first water outlet 120, the single-channel desalination assembly 100 purifies water flowing in from the first water inlet 110, and the purified water flows out from the first water outlet 120.
It will be appreciated that the single-channel desalination assembly 100 uses only one water inlet and one water outlet for the purification of water flowing therethrough, and thus may be referred to as a single-channel desalination assembly.
In some embodiments, the single channel desalination assembly 100 can, of course, also include other water inlets and/or outlets. For example, when the single-channel desalination assembly 100 is flushed and regenerated, the generated wastewater can be discharged through the water outlet. When the single-channel desalination assembly 100 is purifying water flowing through, the water inlets and/or outlets other than the first water inlet 110 and the first water outlet 120 can be closed, thereby forming a single-channel structure.
The single channel desalination module 100 may not discharge wastewater when purifying water flowing therethrough. By adopting the single-channel desalination assembly 100 for water purification, water entering the single-channel desalination assembly 100 can be discharged from the water outlet and purified, no wastewater is generated in the process, and the utilization rate of the water is improved.
In some embodiments, the single-channel desalination assembly 100 comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge.
Illustratively, the chemisorptive desalination cartridge can include at least one of an ion exchange (IX) resin cartridge, a bipolar membrane (Biopolar, BP) electrodeionization cartridge.
Illustratively, the physisorption desalination filter element may include at least one of a Capacitive Desalination (CDI) filter element, a Membrane Capacitive Desalination (MCDI) filter element.
Specifically, the capacitive desalination filter element, the membrane capacitive desalination filter element, the bipolar membrane electrodeionization filter element and the like can cause the directional migration of cations and anions when being electrified so as to realize the purification treatment of water, and the filter elements can be called as electrically driven desalination filter elements.
Specifically, as shown in fig. 2 and 3, a schematic diagram of a structure of a bipolar membrane electrodeionization filter cartridge 900 is shown.
As shown in fig. 2 and 3, the bipolar membrane electrodeionization filter cartridge 900 includes one or more pairs of electrodes 910, and at least one bipolar membrane 920 or a plurality of spaced-apart bipolar membranes 920 is disposed between at least one pair of electrodes 910. Wherein, bipolar membrane 920 includes cation exchange membrane 921 and anion exchange membrane 922, and cation exchange membrane 921 and anion exchange membrane 922 set up relatively, compound together. For example, the bipolar membrane 920 can be produced by a hot press molding method, a bonding molding method, a casting molding method, an anion and cation exchange radical method, an electrodeposition molding method, or the like. Specifically, there is no space between the cation exchange membrane 921 and the anion exchange membrane 922 on one bipolar membrane 920, for example, water does not pass between the cation exchange membrane 921 and the anion exchange membrane 922 on the same bipolar membrane 920 when flowing through the bipolar membrane electrodeionization filter cartridge 900.
As shown in fig. 2 and 3, the 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 < + > and the like and anions such as chloride ions and the like adsorbed on the bipolar membrane 920 can be released, so that salt substances in the bipolar membrane electrodeionization filter core can be washed out by water, and regeneration is realized; water carrying cations such as Na + and anions such as chloride ions can be called concentrated water.
Specifically, as shown in fig. 1, the electrically driven double-channel desalination module 200 includes a second water inlet 210, a concentrated water outlet 220, and a second water outlet 230, the first water outlet 120 of the single-channel desalination module 100 is communicated with the second water inlet 210, when the water purified by the single-channel desalination module 100 flows into the second water inlet 210 from the first water outlet 120, the electrically driven double-channel desalination module 200 performs a secondary purification treatment on the water flowing in from the second water inlet 210 to obtain concentrated water and purified water, the concentrated water flows out through the concentrated water outlet 220, and the purified water flows out through the second water outlet 230.
It should be noted that the electrically driven double-channel desalination assembly 200 at least uses one water inlet and two water outlets when purifying the water flowing through, and needs to be powered by the power supply assembly, and is therefore called as an electrically driven double-channel desalination assembly.
Illustratively, the electrically driven dual-channel desalination assembly 200 includes at least one of an electrodialysis unit, a reverse electrodialysis unit.
Specifically, as shown in fig. 1, the pipeline system 300 includes a first pipeline 301 and a second pipeline 302, the first pipeline 301 is used for supplying water to the first water inlet 110, and the second pipeline 302 outputs purified water flowing out through the second water outlet 230.
In some embodiments, the domestic water purification apparatus further comprises a raw water tank capable of storing raw water, and one end of the first pipeline 301 is connected to the raw water tank, and the other end is connected to the first water inlet 110 of the single channel desalination assembly 100.
Illustratively, the raw water tank comprises a transparent shell or a transparent window is arranged on the shell, so that a user can conveniently check the water quality, the water level and the like in the raw water tank.
For example, the raw water tank may further include a water injection port through which water to be purified may be added into the raw water tank. For example, the water filling port is connected with a tap water pipe.
In an exemplary embodiment, the raw water tank is further provided with a liquid level meter, and when the liquid level in the raw water tank drops to a set value, the raw water tank can control a valve of the tap water pipe to open to feed water to a water feeding port of the raw water tank.
It will be appreciated that the first conduit 301 may also be connected directly to the tap water line at one end and to the first water inlet 110 of the single channel desalination assembly 100 at the other end.
In some embodiments, the household water purifying apparatus further includes a fresh water tank capable of storing pure water, and the pure water flowing out through the second water outlet 230 flows into the fresh water tank through the second pipe 302. Through storing the water purification in the water purification case, can improve the water yield, reduce user's latency.
Illustratively, a liquid level meter is also provided in the clean water tank, and the single-channel desalination module 100 and the electrically driven dual-channel desalination module 200 can be controlled to stop operating when the liquid level in the clean water tank rises to a first set point, and the single-channel desalination module 100 and the electrically driven dual-channel desalination module 200 can be controlled to start operating when the liquid level in the clean water tank falls to a second set point.
In some embodiments, as shown in fig. 4, the pipe system 300 includes a pre-filter assembly 303 located between the first pipe 301 and the first water inlet 110. The pre-filter assembly 303 may be configured to purify the water entering the single-channel desalination assembly 100, for example, to remove particulate impurities, residual chlorine, etc. from the water, thereby reducing the workload and consumption of the single-channel desalination assembly 100 and prolonging the regeneration cycle and service life thereof.
Illustratively, the pre-filter assembly 303 includes a PP cotton filter element and/or an activated carbon filter element.
Illustratively, the activated carbon filter element comprises a scale inhibition activated carbon filter element and a non-scale inhibition activated carbon filter element, the scale inhibition activated carbon filter element comprises a scale inhibitor and activated carbon, the non-scale inhibition activated carbon filter element only comprises activated carbon, the scale inhibitor on the scale inhibition activated carbon filter element can prevent water from scaling, so that the subsequent single-channel desalination assembly 100 can purify water, and the service life of the single-channel desalination assembly 100 can also be prolonged.
In some embodiments, the pipe system 300 includes a post-filter assembly disposed at the outlet of the second pipe 302, the post-filter assembly including a microfiltration cartridge and/or an activated carbon cartridge. The quality of the purified water of the dual-channel desalination module 200 can be further improved by further purifying the purified water by the post-filtration module.
In some embodiments, as shown in fig. 5, the pipeline system 300 further includes a third pipeline 304, a fourth pipeline 305, a fifth pipeline 306, a sixth pipeline 307, a seventh pipeline 308, an eighth pipeline 309, a first three-way valve 400, a second three-way valve 500, a third three-way valve 600, a first one-way valve 700, and a second one-way valve 800, the first three-way valve 400 includes a first valve 410, a second valve 420, and a third valve 430, the second three-way valve 500 includes a fourth valve 510, a fifth valve 520, and a sixth valve 530, the third three-way valve 600 includes a seventh valve 610, an eighth valve 620, and a ninth valve 630, the first one-way valve 700 is disposed on the fifth pipeline 306, and the second one-way valve 800 is disposed on the seventh pipeline 308.
Illustratively, the first pipeline 301 is connected to the first valve 410, the third pipeline 304 is connected between the third valve 430 and the fourth valve 510, the fourth pipeline 305 is connected between the sixth valve 530 and the first water inlet 110, the fifth pipeline 306 is connected between the second valve 420 and the second water inlet 210, the sixth pipeline 307 is connected between the second water outlet 230 and the seventh valve 610, the seventh pipeline 308 is connected between the eighth valve 620 and the first water outlet 120, the eighth pipeline is connected to the fifth valve 520, and the second pipeline 302 is connected to the ninth valve 630.
When the single-channel desalination assembly 100 is powered off or reverse voltage is applied, water is conveyed to the second water inlet 210 through the first pipeline 301, the first valve 410, the second valve 420, the fifth pipeline 306 and the first one-way valve 700, the double-channel desalination assembly 200 performs purification treatment on water flowing in from the second water inlet 210 to obtain produced water and concentrated water, the concentrated water flows out through the concentrated water outlet 220, the produced water is conveyed to the first water outlet 120 through the second water outlet 230, the sixth pipeline 307, the seventh valve 610, the eighth valve 620 and the seventh pipeline 308, the produced water flows into the single-channel desalination assembly 100 through the first water outlet 120, the produced water flowing into the single-channel desalination assembly 100 through the first water outlet 120 performs cleaning or regeneration on the single-channel desalination assembly 100 to obtain wastewater, and the wastewater is discharged to the eighth pipeline 309 through the first water inlet 110, the fourth pipeline 305, the sixth valve 530 and the fifth valve 520.
After a period of use, the single-channel desalination assembly 100 can be cleaned or regenerated in the above manner, and the first pipeline 301 sends water back to the first water outlet 120 to flush the salt species of the single-channel desalination assembly 100, thereby improving the cleaning or regeneration efficiency of the single-channel desalination assembly 100 and reducing the scaling risk of the single-channel desalination assembly 100.
Illustratively, when the single-channel desalination assembly 100 is cleaned or regenerated, the first valve 410, the second valve 420, the fifth valve 520, the sixth valve 530, the seventh valve 610, and the eighth valve 620 are in an open state, the third valve 430, the fourth valve 510, and the ninth valve 630 are in a closed state, so that water is delivered to the second water inlet 210 through the first pipeline 301, the first valve 410, the second valve 420, the fifth pipeline 306, and the first check valve 700, the double-channel desalination assembly 200 performs a purification treatment on the water flowing from the second water inlet 210 to obtain a product water and a concentrated water, the concentrated water flows out through the concentrated water inlet 220, the product water is delivered to the first water outlet 120 through the second water outlet 230, the sixth pipeline 307, the seventh valve 610, the eighth valve 620, and the seventh pipeline 308, flows into the single-channel desalination assembly 100 through the first water outlet 120, and the product water flowing into the single-channel desalination assembly 100 through the first water outlet 120 cleans or regenerates the single-channel desalination assembly 100, waste water is obtained and is discharged to the eighth pipe 309 via the first water inlet 110, the fourth pipe 305, the sixth valve 530 and the fifth valve 520.
In some embodiments, when the single-channel desalination assembly 100 is cleaned or regenerated, the first valve 410, the second valve 420, the fifth valve 520, the sixth valve 530, the seventh valve 610, and the eighth valve 620 are in an open state, the third valve 430, and the fourth valve 510 are in a closed state, the ninth valve 630 is in an open state, the water is delivered to the second water inlet 210 through the first pipeline 301, the first valve 410, the second valve 420, the fifth pipeline 306, and the first one-way valve 700, the dual-channel desalination assembly 200 performs a purification treatment on the water flowing in from the second water inlet 210 to obtain a product water and a concentrated water, the concentrated water flows out through the concentrated water inlet 220, the product water is delivered to the first water outlet 120 through the second water outlet 230, the sixth pipeline 307, the seventh valve 610, the eighth valve 620, and the seventh pipeline 308, the product water flows into the single-channel desalination assembly 100 through the first water outlet 120, and the product water flowing into the single-channel desalination assembly 100 through the first water outlet 120 cleans or regenerates the single-channel desalination assembly 100, waste water is obtained and is discharged to the eighth pipeline 309 through the first water inlet 110, the fourth pipeline 305, the sixth valve 530 and the fifth valve 520, and simultaneously, produced water can also be conveyed to the second pipeline 302 through the second water outlet 230, the sixth pipeline 307, the seventh valve 610 and the ninth valve 630. The single-channel desalination assembly 100 can be cleaned or regenerated, and meanwhile, the household water purifying device can also produce water, so that continuous water production is realized, and the waiting time of users is reduced.
Illustratively, when the single-channel desalination module 100 and the dual-channel desalination module 200 are normally used for purifying water, the first valve 410, the third valve 430, the fourth valve 510, the sixth valve 530, the seventh valve 610 and the ninth valve 620 are in an open state, the second valve 420, the fifth valve 520 and the eighth valve 620 are in a closed state, then the water is delivered to the first water inlet 110 through the first pipeline, the first valve 410, the third valve 430, the third pipeline 304, the fourth valve 510, the sixth valve 530 and the fourth pipeline 305, the single-channel desalination module 100 performs purification treatment on the water flowing in from the first water inlet 110, the purified water flows out through the first water outlet 120, when the purified water flows into the second water inlet 210 from the first water outlet 120, the dual-channel desalination module 200 performs secondary purification treatment on the water flowing in from the second water inlet 210 to obtain concentrated water and purified water, the concentrated water flows out through the concentrated water outlet 220, the clean water is delivered to the second pipe 302 via the second water outlet, the sixth pipe 307, the seventh valve 610 and the ninth valve 630.
In some embodiments, as shown in fig. 6, the pipe system 300 further comprises a ninth pipe 310, the ninth pipe 310 being connected between the first water inlet 110 and the concentrate inlet 220, the ninth pipe 310 being used for guiding the concentrate flowing out through the concentrate inlet 220 to the first water inlet 110. The concentrated water generated by the dual-channel desalination assembly 200 is guided to the first water inlet 110 through the ninth pipeline, so that the concentrated water and tap water flow into the single-channel desalination assembly 100 from the first water inlet together, the discharge amount of wastewater can be reduced, and the utilization rate of water can be improved.
In some embodiments, the ninth pipeline 310 is provided with a fourth valve component, a water inlet of the fourth valve component is communicated with the concentrate inlet, a water outlet of the fourth valve component is communicated with the first water inlet, and another water outlet of the fourth valve component is communicated with the water outlet, so that the concentrate discharged from the concentrate inlet can be divided into two streams of concentrate through the fourth valve component, one stream of concentrate is guided to the first water inlet 110 through the ninth pipeline, and the other stream of concentrate is discharged through the water outlet, thereby reducing the discharge amount of waste water and improving the utilization rate of water.
Illustratively, as shown in fig. 4 and 7, the household water purifying device further includes a power supply assembly 30, a control assembly 40, and a first conductivity acquisition assembly 10, wherein the control assembly 40 is connected to the first conductivity acquisition assembly 10, the first conductivity acquisition assembly 10 is disposed in the second pipeline 302 for acquiring the conductivity of the purified water, and the power supply assembly 30 supplies power to the electrically driven single-channel desalination assembly 100 and the electrically driven double-channel desalination assembly 200.
The water quality of water at the corresponding position can be detected through the conductivity acquisition assembly. For example, the TDS value is a water quality test indicator specifically set for purified water, and represents the total soluble solids content of water. The TDS value can reflect the water quality to a certain degree, and generally, the lower the TDS value is, the less soluble salts such as heavy metal ions in the water are, and the purer the water quality is.
In some embodiments, the voltage supplied by the power supply assembly 30 to the electrically driven single-channel desalination assembly 100 and the electrically driven double-channel desalination assembly 200 can be adjusted, and the desalination rate of the electrically driven single-channel desalination assembly 100 and the electrically driven double-channel desalination assembly 200 can be changed when the voltage supplied by the power supply assembly 30 is adjusted, so that the conductivity of the water can be changed.
Illustratively, the control assembly 40 is configured to obtain the conductivity collected by the first conductivity collection assembly 10 and adjust the voltage of the electrically driven single-channel desalination assembly 100 and/or the electrically driven dual-channel desalination assembly 200 to adjust the conductivity of the water when the conductivity does not reach the target conductivity.
Illustratively, the control module 40 is configured to obtain the conductivity collected by the first conductivity collection module 10, and adjust the voltage of the dual-channel desalination module to adjust the conductivity of the water when the conductivity does not reach the target conductivity and when the accumulated water purification time period of the single-channel desalination module 100 reaches a preset time period. The accumulated water purification time of the single-channel desalination assembly 100 is the accumulated time for purifying water by the single-channel desalination assembly 100, and after regeneration or cleaning, the accumulated water purification time is cleared, and the preset time may be set based on actual conditions, for example, the preset time is 25 days.
In some embodiments, as shown in fig. 4, the household water purifying apparatus further comprises a second conductivity collecting assembly 20, the second conductivity collecting assembly 20 is disposed at the first water outlet 120 and is used for collecting the conductivity of the water produced by the single-channel desalination assembly 100, the control assembly 40 is connected to the second conductivity collecting assembly 20, the control assembly 40 is further used for determining a target voltage of the electrically-driven double-channel desalination assembly 200 through the target conductivity, the conductivity collected by the first conductivity collecting assembly 10 and the conductivity collected by the second conductivity collecting assembly 10, and adjusting the voltage of the electrically-driven double-channel desalination assembly 200 to the target voltage, so that the conductivity collected by the first conductivity collecting assembly 10 reaches the target conductivity.
For example, the target conductivity may be stored in the memory of the control component 40 in advance, or the control component 40 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.
Illustratively, during the process of purifying water, the salinity concentration in the water can be detected in real time by detecting the electrical conductivity of the water, and the desalination rate of the single-channel desalination assembly 100 and/or the electrically driven double-channel desalination assembly 200 can be adjusted by changing the voltage of the single-channel desalination assembly 100 and/or the electrically driven double-channel desalination assembly 200, so as to ensure the stability of the quality of the produced water.
In some embodiments, the control assembly 40 includes an input device, which may include, for example, a button, a knob, a touch screen, a microphone, and the like.
For example, the user may perform a setting operation of the target conductivity through the input device, and the control component 40 may determine the target conductivity according to the setting operation of the user.
For example, when the input device detects a water outlet control operation, such as a user pressing a water outlet button, or uttering a voice including a water outlet command, it is determined whether the conductivity detected by the first conductivity acquisition assembly 10 reaches the target conductivity. When the conductivity reaches the target conductivity, the control assembly 40 may control the outlet valve of the second conduit 302 to send the water out for use by the user.
In some embodiments, the single-channel desalination assembly 100 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 100 can be removed and flushed as needed to regenerate the filter elements of the single-channel desalination assembly 100.
In some embodiments, the single channel desalination assembly 100 is powered in a first direction to purify water flowing therethrough; when the single-channel desalination assembly 100 is powered in a second direction opposite the first direction, the water flowing through cleans the single-channel desalination assembly 100.
Illustratively, the single-channel desalination assembly 100 can include a waste water discharge port. When needed, the power supply assembly can provide reverse voltage for the electrically driven single-channel desalination assembly, so as to realize the flushing and regeneration of the filter element of the single-channel desalination assembly 100, and the generated wastewater can be discharged through the wastewater discharge port.
For example, when the duration that the water quality detected by the second conductivity acquisition component 20 does not reach the set minimum conductivity exceeds a preset time period, such as 24 hours, it may be determined that the single channel desalination component 100 needs to be regenerated, for example, a corresponding prompt message may be output to a user, or a voltage in a reverse direction may be provided to the electrically driven single channel desalination component 100 through the power supply component, so as to flush and regenerate the filter element of the single channel desalination component 100.
In some embodiments, the second pipeline 302 includes a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline, and a normal temperature pipeline, the purified water flowing out through the second water outlet 230 flows into the second pipeline 302 through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.
Exemplarily, the heating pipeline comprises a flow regulating assembly, a fourth water inlet, a heating assembly and a fifth water outlet, wherein water flowing out of the third water outlet flows in from the fourth water inlet after being regulated by the flow regulating assembly, the heating assembly heats the flowing water, and the heated water flows out from the fifth water outlet.
Illustratively, the heating assembly includes, for example, a heat exchanger or the like, and the heating assembly can heat the inflow water to provide hot water at a desired temperature to a user.
For example, the flow regulating assembly includes a flow regulating valve and the like, and the flow regulating assembly can perform flow regulation on the water flowing out from the third water outlet, so that rapid heating of the water can be realized, for example, in the case that the heating power of the heating assembly is fixed, the heating is faster when less water flows in through the flow regulating assembly, and conversely, the heating is slower when more water flows in through the flow regulating assembly.
The domestic purifier that the above-mentioned embodiment of this specification provided includes: the single-channel desalting component comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet, and the purified water flows out from the first water outlet; the electrically-driven double-flow-channel desalting component comprises a second water inlet, a concentrated water outlet and a second water outlet, wherein the first water outlet is communicated with the second water inlet, when the water purified by the single-flow-channel desalting component flows into the second water inlet from the first water outlet, the double-flow-channel desalting component carries out secondary purification treatment on the water flowing in from the second water inlet to obtain concentrated water and purified water, the concentrated water flows out from the concentrated water outlet, and the purified water flows out from the second water outlet; and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet. The water is primarily purified through the single-channel desalting component, and the primarily purified water is conveyed to the electrically driven double-channel desalting component for secondary purification treatment, so that the service life of the double-channel desalting component can be prolonged, and the water quality and the water utilization rate can also be improved.
In the description of the embodiments of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the embodiments of the present application and for simplification of description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.
In the embodiments of the present application, unless otherwise specifically stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.
In the embodiments of the present application, unless otherwise explicitly specified or limited, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (11)
1. A domestic water purification unit, its characterized in that, domestic water purification unit includes:
the single-channel desalting component comprises a first water inlet and a first water outlet, and is used for purifying water flowing in from the first water inlet, and the purified water flows out from the first water outlet;
the electrically-driven double-flow-channel desalting component comprises a second water inlet, a concentrated water outlet and a second water outlet, wherein the first water outlet is communicated with the second water inlet, when the water purified by the single-flow-channel desalting component flows into the second water inlet from the first water outlet, the double-flow-channel desalting component carries out secondary purification treatment on the water flowing in from the second water inlet to obtain concentrated water and purified water, the concentrated water flows out from the concentrated water outlet, and the purified water flows out from the second water outlet;
and the pipeline system comprises a first pipeline and a second pipeline, the first pipeline is used for supplying water to the first water inlet, and the second pipeline outputs purified water flowing out through the second water outlet.
2. The domestic water purification apparatus of claim 1, wherein the single-channel desalination assembly comprises a physisorption desalination cartridge and/or a chemisorption desalination cartridge; the electrically driven dual-flow desalination assembly comprises at least one of an electrodialysis unit, a reverse electrodialysis unit.
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 electrodeionization filter element.
4. The domestic water purification device of claim 1, wherein the pipe system comprises a pre-filter assembly between the first pipe and the first water inlet, the pre-filter assembly comprising a PP cotton filter element and/or an activated carbon filter element.
5. The domestic water purification device of claim 4, wherein the activated carbon filter element comprises a scale inhibiting activated carbon filter element and a non-scale inhibiting activated carbon filter element.
6. The domestic water purification apparatus of any one of claims 1 to 5, wherein the pipe system further comprises a third pipe, a fourth pipe, a fifth pipe, a sixth pipe, a seventh pipe, an eighth pipe, a first three-way valve, a second three-way valve, a third three-way valve, a first one-way valve and a second one-way valve;
the first three-way valve comprises a first valve, a second valve and a third valve, the second three-way valve comprises a fourth valve, a fifth valve and a sixth valve, the third three-way valve comprises a seventh valve, an eighth valve and a ninth valve, the first one-way valve is arranged on the fifth pipeline, and the second one-way valve is arranged on the seventh pipeline;
the first pipeline is connected with the first valve, the third pipeline is connected between the third valve and the fourth valve, the fourth pipeline is connected between the sixth valve and the first water inlet, the fifth pipeline is connected between the second valve and the second water inlet, the sixth pipeline is connected between the second water outlet and the seventh valve, the seventh pipeline is connected between the eighth valve and the first water outlet, the eighth pipeline is connected with the fifth valve, and the second pipeline is connected with the ninth valve.
7. The domestic water purification apparatus of claim 6, wherein when the single-channel desalination assembly is powered off or a reverse voltage is applied, the water is delivered to the second water inlet through the first pipeline, the first valve, the second valve, the fifth pipeline and the first one-way valve, the double-channel desalination assembly purifies the water flowing in from the second water inlet to obtain a concentrated water, the concentrated water flows out through the concentrated water outlet, the produced water is delivered to the first water outlet through the second water outlet, the sixth pipeline, the seventh valve, the eighth valve and the seventh pipeline to flow into the single-channel desalination assembly through the first water outlet, the produced water flowing into the single-channel desalination assembly through the first water outlet cleans or regenerates the single-channel desalination assembly to obtain wastewater, and the wastewater passes through the first water inlet, the fourth pipeline, the second water inlet and the first one-way valve, The sixth valve and the fifth valve discharge to the eighth line.
8. The domestic water purification apparatus according to any one of claims 1 to 5, wherein the pipe system further comprises a ninth pipe connected between the first water inlet and the concentrate inlet, the ninth pipe being adapted to guide concentrate flowing out through the concentrate inlet to the first water inlet.
9. The household water purifying device according to any one of claims 1 to 5, further comprising a control component and a conductivity acquisition component, wherein the control component is connected with the conductivity acquisition component, and the conductivity acquisition component is arranged on the second pipeline and used for acquiring the conductivity of the purified water;
the control component is used for acquiring the conductivity acquired by the conductivity acquisition component and adjusting the voltage of the electrically-driven single-channel desalination component and/or the electrically-driven double-channel desalination component when the conductivity does not reach the target conductivity so as to adjust the conductivity of the water.
10. The domestic water purification apparatus of claim 9, wherein the control module is further configured to obtain the conductivity collected by the conductivity collection module, and adjust the voltage of the dual-channel desalination module to adjust the conductivity of the water when the conductivity does not reach the target conductivity and when the accumulated water purification time of the single-channel desalination module reaches a preset time.
11. The domestic water purifying apparatus according to any one of claims 1 to 5, wherein the second pipeline comprises a third water inlet, a third water outlet, a fourth water outlet, a heating pipeline and a normal temperature pipeline, the purified water flowing out from the second water outlet flows into the second pipeline through the third water inlet, the third water outlet is connected to the heating pipeline, and the fourth water outlet is connected to the normal temperature pipeline.
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| CN202010252458.1A CN113493269A (en) | 2020-04-01 | 2020-04-01 | Household water purifying device |
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| CN212403786U (en) * | 2020-04-01 | 2021-01-26 | 佛山市云米电器科技有限公司 | Household water purifying device |
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| JP2002336865A (en) * | 2001-05-18 | 2002-11-26 | Kurita Water Ind Ltd | Desalting apparatus and desalting method |
| US20190233314A1 (en) * | 2016-10-13 | 2019-08-01 | Vws (Uk) Ltd. | Method and apparatus for providing ultrapure water |
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