CN114162999A - Water purifier - Google Patents
Water purifier Download PDFInfo
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- CN114162999A CN114162999A CN202111018862.3A CN202111018862A CN114162999A CN 114162999 A CN114162999 A CN 114162999A CN 202111018862 A CN202111018862 A CN 202111018862A CN 114162999 A CN114162999 A CN 114162999A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 397
- 239000012528 membrane Substances 0.000 claims abstract description 413
- 230000001105 regulatory effect Effects 0.000 claims abstract description 32
- 239000002351 wastewater Substances 0.000 claims description 85
- 238000001728 nano-filtration Methods 0.000 claims description 57
- 238000001223 reverse osmosis Methods 0.000 claims description 52
- 238000001914 filtration Methods 0.000 claims description 31
- 150000003839 salts Chemical class 0.000 claims description 25
- 238000005096 rolling process Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims 3
- 239000008213 purified water Substances 0.000 claims 1
- 238000010612 desalination reaction Methods 0.000 abstract description 26
- 238000010586 diagram Methods 0.000 description 22
- 238000004804 winding Methods 0.000 description 16
- 238000011045 prefiltration Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 235000020188 drinking water Nutrition 0.000 description 3
- 239000003651 drinking water Substances 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/442—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by nanofiltration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a water purifier, wherein the water purifier is provided with a water source inlet and a water outlet, the water purifier comprises a first filter element, a second filter element and a regulating valve, the first filter element comprises a pretreatment unit and a first membrane unit, the water inlet of the pretreatment unit is communicated with the water source inlet, the water inlet of the first membrane unit is communicated with the water outlet of the pretreatment unit, and the pure water port of the first membrane unit is communicated with the pure water outlet; the second filter element comprises a second membrane unit, a water inlet of the second membrane unit is communicated with a water outlet of the pretreatment unit, and a pure water port of the second membrane unit is communicated with the pure water outlet; the regulating valve is used for independently regulating the pure water outlet flow of the first membrane unit or independently regulating the pure water outlet flow of the second membrane unit. The water purifier disclosed by the invention widens the range of the desalination rate of the effluent quality, so that the requirements of users on different water qualities can be met, and the use experience of the users is improved.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a water purifier.
Background
Along with the improvement of the economic and living standards of China, the requirements of people on the quality of drinking water are higher and higher, and the water purifier is more and more commonly applied to families of residents. At present, a water purifier usually adopts a single reverse osmosis filter element or a single nanofiltration filter element, wherein the desalination rate of a reverse osmosis membrane is generally as high as 90% -99%, and the desalination rate of a nanofiltration membrane is generally lower than 50%, so that the desalination rate range of the effluent quality is limited, the effluent quality of the water purifier is single, the requirements of users on different water qualities are difficult to meet, and the water use experience of the users is influenced.
The above is only for the purpose of assisting understanding of the technical solutions of the present invention, and does not represent an admission that the above is the prior art.
Disclosure of Invention
The invention mainly aims to provide a water purifier and aims to solve the technical problem that the existing water purifier is difficult to meet the requirements of users on different water qualities.
To achieve the above object, the present invention provides a water purifier having a water source inlet and a pure water outlet, the water purifier comprising:
the first filter element comprises a pretreatment unit and a first membrane unit, a water inlet of the pretreatment unit is communicated with the water source inlet, a water outlet of the pretreatment unit is communicated with a water inlet of the first membrane unit, and a pure water port of the first membrane unit is communicated with the pure water outlet;
the second filter element comprises a second membrane unit, a water inlet of the second membrane unit is communicated with a water outlet of the pretreatment unit, and a pure water port of the second membrane unit is communicated with the pure water outlet; and
and the regulating valve is used for independently regulating the pure water outlet flow of the first membrane unit or independently regulating the pure water outlet flow of the second membrane unit.
In one embodiment, the first membrane unit is a mixed roll membrane unit, and the second membrane unit is a reverse osmosis membrane unit.
In one embodiment, the first membrane unit is a reverse osmosis membrane unit, and the second membrane unit is a mixed roll membrane unit.
In one embodiment, the mixed roll membrane unit comprises a central pipe and a filtering membrane element, wherein the filtering membrane element is wound on the periphery of the central pipe, and the filtering membrane element comprises at least one nanofiltration membrane sheet and at least one reverse osmosis membrane sheet.
In one embodiment, the reverse osmosis membrane has a salt rejection of 90% to 99%, and the nanofiltration membrane has a salt rejection of 0% to 90%.
In an embodiment, the filtration membrane element comprises a first nanofiltration membrane and a second nanofiltration membrane, the first nanofiltration membrane having a salt rejection greater than the salt rejection of the second nanofiltration membrane.
In one embodiment, the first nanofiltration membrane has a salt rejection of 40% to 90%, and the second nanofiltration membrane has a salt rejection of 0% to 80%.
In one embodiment, the filtration membrane element comprises a nanofiltration membrane and a reverse osmosis membrane;
or the filtering membrane element comprises a nanofiltration membrane and at least two reverse osmosis membranes;
or the filtering membrane element comprises a reverse osmosis membrane and at least two nanofiltration membranes;
or the filtering membrane element comprises at least two nanofiltration membrane pieces and at least two reverse osmosis membranes.
In one embodiment, the pure water port of the first membrane unit and the pure water port of the second membrane unit intersect through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the first membrane unit and the pure water port of the second membrane unit and the pure water port of the first membrane unit.
In one embodiment, the pure water port of the first membrane unit and the pure water port of the second membrane unit intersect through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the first membrane unit and the pure water port of the second membrane unit.
In one embodiment, the water purifier further comprises a wastewater outlet, and the wastewater inlet of the first membrane unit and the wastewater inlet of the second membrane unit are both communicated with the wastewater outlet; the water purifier also comprises a waste water valve, and the waste water valve is used for adjusting the waste water outlet flow of the waste water outlet.
In one embodiment, the waste water port of the first membrane unit and the waste water port of the second membrane unit intersect through a pipeline, and the waste water valve is arranged between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit and the waste water outlet.
In an embodiment, the waste water port of the first membrane unit and the waste water port of the second membrane unit intersect through a pipeline, the number of the waste water valves is two, one of the waste water valves is arranged between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit and the waste water port of the first membrane unit, and the other waste water valve is arranged between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit.
The water purifier comprises a first filter element, a second filter element and a regulating valve, wherein the first filter element comprises a pretreatment unit and a first membrane unit, a water inlet of the pretreatment unit is communicated with a water source inlet, a water inlet of the first membrane unit is communicated with a water outlet of the pretreatment unit, and a pure water port of the first membrane unit is communicated with a pure water outlet; the second filter element comprises a second membrane unit, a water inlet of the second membrane unit is communicated with a water outlet of the pretreatment unit, and a pure water port of the second membrane unit is communicated with a pure water outlet; the regulating valve is used for independently regulating the pure water outlet flow of the first membrane unit or independently regulating the pure water outlet flow of the second membrane unit; so, when making water, raw water (running water) is flowed in by the water source entry the preprocessing unit of first filter core, the raw water after preprocessing unit prefilter divide into two the tunnel, gets into the first membrane unit of first filter core all the way and filters, filters in another way gets into the second membrane unit of second filter core, and finally, the pure water that flows from the pure water mouth of first membrane unit flows and the pure water that flows from the pure water mouth of second membrane unit mixes the back and flows from the pure water outlet of purifier to supply the user to use. In the water preparation process, the pure water outlet flow of the first membrane unit or the pure water outlet flow of the second membrane unit can be adjusted, and then the mixing proportion of the pure water outlet of the first membrane unit and the pure water outlet of the second membrane unit is adjusted, so that the desalination rate range of the outlet water quality of the water purifier is widened, the desalination rate range of the water purifier is 10% -99%, the requirements of users on different water qualities can be well met, and the use experience of the users is improved. Meanwhile, the water purifier can ensure healthy drinking water and prevent scaling, and effectively prolongs the service life of the water purifier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a water circuit of an embodiment of a water purifier according to the present disclosure;
FIG. 2 is a schematic diagram of a water circuit of another embodiment of the water purifier of the present invention;
FIG. 3 is a schematic diagram of a water circuit of a water purifier according to another embodiment of the present invention;
FIG. 4 is a schematic diagram of a water circuit of a water purifier according to another embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a first embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a second embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a third embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a fourth embodiment of the present invention;
FIG. 9 is a schematic structural diagram of a fifth embodiment of a film mixing and wrapping unit of the water purifier according to the present invention;
FIG. 10 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a sixth embodiment of the present invention;
FIG. 11 is a schematic structural diagram of a seventh embodiment of a film mixing and wrapping unit of the water purifier according to the present invention;
FIG. 12 is a schematic structural diagram of an eighth embodiment of a film mixing and wrapping unit of a water purifier according to the present invention;
FIG. 13 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a ninth embodiment of the present invention;
FIG. 14 is a schematic structural diagram of a tenth embodiment of a film mixing and wrapping unit of a water purifier according to the present invention;
FIG. 15 is a schematic structural diagram of an eleventh embodiment of a film mixing and wrapping unit of the water purifier according to the present invention;
FIG. 16 is a schematic structural diagram of a twelfth embodiment of a film mixing and wrapping unit of the water purifier according to the present invention;
FIG. 17 is a schematic structural diagram of a mixed rolling membrane unit of a water purifier according to a thirteenth embodiment of the present invention;
FIG. 18 is a schematic structural diagram of a fourteenth embodiment of a film mixing and wrapping unit of a water purifier according to the present invention;
FIG. 19 is a schematic structural diagram of a film mixing and wrapping unit of a water purifier according to a fifteenth embodiment of the present invention;
FIG. 20 is a schematic structural diagram of a film mixing and winding unit of a water purifier according to a sixteenth embodiment of the present invention;
FIG. 21 is a schematic structural view of a seventeenth embodiment of a mixed rolling membrane unit of a water purifier according to the present invention;
FIG. 22 is a schematic structural view of an eighteenth embodiment of a film mixing and wrapping unit of a water purifier according to the present invention;
FIG. 23 is a schematic structural diagram of a nineteenth embodiment of a mixed rolling membrane unit of a water purifier according to the present invention;
FIG. 24 is a schematic structural diagram of a twentieth embodiment of a film mixing and wrapping unit of the water purifier according to the present invention;
fig. 25 is a schematic structural view of a twenty-first embodiment of a film mixing and wrapping unit of a water purifier according to the present invention.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, if appearing throughout the text, "and/or" is meant to include three juxtaposed aspects, taking "A and/or B" as an example, including either the A aspect, or the B aspect, or both A and B satisfied aspects. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a water purifier.
Referring to fig. 1 to 4, a water purifier 100 according to the present invention has a water inlet 101, a pure water outlet 102, and a waste water outlet 103. Raw water (tap water) enters the water purifier 100 from the water source inlet 101, and is filtered by the filter element to generate pure water and wastewater, wherein the pure water flows out from the pure water outlet 102 of the water purifier 100, and the wastewater flows out from the wastewater outlet 103 of the water purifier 100.
In the embodiment of the present invention, the water purifier 100 includes a first filter element 10 and a second filter element 20. The first filter element 10 comprises a pretreatment unit 11 and a first membrane unit 12, and the second filter element 20 comprises a second membrane unit. The water source inlet 101 is communicated with a water inlet 11a of the pretreatment unit 11, a water outlet 11b of the pretreatment unit 11 is communicated with a water inlet 12a of the first membrane unit 12 and a water inlet 20a of the second membrane unit, and the pure water port 12b of the first membrane unit 12 and the pure water port 20b of the second membrane unit are both communicated with the pure water outlet 102.
Specifically, the water purifier 100 is a dual-core water purifier 100. The first filter element 10 is a composite filter element composed of a pretreatment unit 11 and a first membrane unit 12. Wherein, the water inlet 11a of the pretreatment unit 11 is communicated with the water source inlet 101, and the pretreatment unit 11 is mainly used for primarily filtering raw water and filtering out impurities, organic matters and other substances in the raw water. Optionally, the pretreatment unit 11 may be a PP cartridge and/or an activated carbon cartridge. The first membrane unit 12, which is a main filtering element of the first filter cartridge 10, may be a reverse osmosis membrane unit or a mixed rolling membrane unit 60. The second filter element 20 is a filter element formed by a single second membrane unit, and the second membrane unit is used as a main filtering element of the second filter element 20, and can also be a reverse osmosis membrane unit or a mixed rolling membrane unit 60. It should be noted that one of the first membrane unit 12 and the second membrane unit is the mixed rolling membrane unit 60, and the other is the reverse osmosis membrane unit.
Wherein the reverse osmosis membrane unit comprises a plurality of reverse osmosis membranes 63. The mixed rolling membrane unit 60 at least includes a nanofiltration membrane 62 and a reverse osmosis membrane 63, and the structure of the mixed rolling membrane unit 60 will be described in detail below and will not be described again. The reverse osmosis membrane 63 is an artificial semipermeable membrane with certain characteristics and is made of a simulated biological semipermeable membrane, generally made of high polymer materials, such as a cellulose acetate membrane, an aromatic polyhydrazide membrane and an aromatic polyamide membrane, can intercept substances larger than 0.0001 micron, is the finest membrane separation product, can effectively intercept all dissolved salts and organic matters with molecular weight larger than 100, and allows water molecules to pass through. The nanofiltration membrane 62 is a functional semipermeable membrane that allows the passage of solvent molecules or certain low molecular weight solutes or low valent ions with a molecular weight cut-off between the reverse osmosis membrane and the ultrafiltration membrane of about 200-.
The first membrane unit 12 and the second membrane unit are connected in parallel between the water outlet 11b of the pretreatment unit 11 and the pure water outlet 102, so that the raw water primarily filtered by the pretreatment unit 11 can flow into the first membrane unit 12 and the second membrane unit respectively for filtration, and then the pure water flowing out of the first membrane unit 12 and the pure water flowing out of the second membrane unit are mixed and flow out of the pure water outlet 102 of the water purifier 100. Optionally, the reverse osmosis membrane unit has a salt rejection of 85% to 99%, e.g., 85%, 90%, 92%, 95%, 97%, 99%. The rejection rate of the rolled film unit 60 is 10% to 90%, for example, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 85%, 90%, etc. Because the second membrane unit and the first membrane unit 12 are different membrane units, and the desalination rate ranges of the second membrane unit and the first membrane unit are different, in the water making process, the pure water outlet flow of the first membrane unit 12 or the pure water outlet flow of the second membrane unit can be adjusted, and then the mixing ratio of the pure water outlet of the first membrane unit 12 and the pure water outlet of the second membrane unit is adjusted, so that the desalination rate range of the outlet water quality of the water purifier 100 is widened, the desalination rate range of the water purifier 100 is 10% -99%, the requirements of users on different water qualities can be well met, and the use experience of the users is improved.
In the embodiment of the present invention, the water inlet 20a of the second membrane unit may intersect with the water inlet 12a of the first membrane unit 12 through a pipeline, and the intersection of the water inlet 12a of the first membrane unit 12 and the water inlet 20a of the second membrane unit is communicated with the water outlet 11a of the pretreatment unit 11. The water purifier 100 further includes a booster pump 30, and the total flow rate of water flowing into the first membrane unit 12 and the second membrane unit can be ensured by boosting the water by the booster pump 30. There may be two positions for the booster pump 30, for example, the booster pump 30 may be provided between the intersection of the water inlet 12a of the first membrane unit 12 and the water inlet 20a of the second membrane unit and the water outlet 11b of the pretreatment unit 11. It is understood that the booster pump 30 may also be provided between the water source inlet 101 and the water inlet 11a of the pretreatment unit 11.
In addition, in the embodiment of the present invention, the water purifier 100 further includes an adjusting valve 40, and the adjusting valve 40 is configured to independently adjust the pure water outlet flow of the first membrane unit 12 or independently adjust the pure water outlet flow of the second membrane unit. Since the total amount of water flowing out of the booster pump 30 is constant, that is, the total amount of water flowing into the first membrane unit 12 and the second membrane unit is constant. If the pure water outlet flow of the first membrane unit 12 is adjusted through the adjusting valve 40, the pure water outlet flow of the second membrane unit is automatically adjusted; similarly, if the pure water outflow rate of the second membrane unit is adjusted by the adjusting valve 40, the pure water outflow rate of the first membrane unit 12 is also automatically adjusted. Therefore, the pure water outlet flow of one membrane unit is adjusted through the adjusting valve 40, and the pure water outlet flow of the other membrane unit can be automatically and correspondingly adjusted, so that the effect of adjusting the mixing ratio of the pure water outlet of the first membrane unit 12 and the pure water outlet of the second membrane unit can be achieved, the desalination rate of the water quality of the water purifier 100 can be adjusted, and the water quality requirement of a user can be met. The desalination rate adjusting range of the water purifier 100 is 10% -99%, so that the desalination rate adjusting range of the water purifier is wide, and the requirements of users on different water qualities can be well met.
The water purifier 100 comprises a first filter element 10 and a second filter element 20, wherein the first filter element 10 comprises a pretreatment unit 11 and a first membrane unit 12, a water inlet 11a of the pretreatment unit 11 is communicated with a water source inlet 101, a water inlet 12a of the first membrane unit 12 is communicated with a water outlet 11b of the pretreatment unit 11, and a pure water port 12b of the first membrane unit 12 is communicated with a pure water outlet 102; the second filter element 20 comprises a second membrane unit, a water inlet 20a of the second membrane unit is communicated with a water outlet 11b of the pretreatment unit 11, and a pure water port 20b of the second membrane unit is communicated with a pure water outlet 102; thus, when water is produced, raw water (tap water) flows into the pretreatment unit 11 of the first filter element 10 from the water source inlet 101, the raw water after primary filtration by the pretreatment unit 11 is divided into two paths, one path of raw water enters the first membrane unit 12 of the first filter element 10 for filtration, the other path of raw water enters the second membrane unit of the second filter element 20 for filtration, and finally, pure water flowing out from the pure water port 12b of the first membrane unit 12 and pure water flowing out from the pure water port 20b of the second membrane unit are mixed and then flow out from the pure water outlet 102 of the water purifier 100 for use by a user. In the water making process, the pure water outlet flow of the first membrane unit 12 or the pure water outlet flow of the second membrane unit can be adjusted, and then the mixing proportion of the pure water outlet of the first membrane unit 12 and the pure water outlet of the second membrane unit is adjusted, so that the desalination rate range of the outlet water quality is widened, the requirements of users on different water qualities can be well met, and the use experience of the users is improved. Meanwhile, the water purifier 100 can ensure healthy drinking water without scaling, and effectively prolongs the service life of the water purifier.
Referring to fig. 1 to 4, in an embodiment, the first membrane unit 12 is a mixed rolling membrane unit 60, and the second membrane unit is a reverse osmosis membrane unit.
Specifically, the first filter element 10 is a composite filter element composed of a pretreatment unit 11 and a mixed winding membrane unit 60, and the second filter element 20 is a reverse osmosis filter element composed of a single reverse osmosis membrane unit. In water production, raw water preliminarily filtered by the pretreatment unit 11 may flow into the first membrane unit 12 and the second membrane unit, respectively, for filtration, and then pure water flowing out of the pure water port 12b of the first membrane unit 12 may be mixed with pure water flowing out of the pure water port 20b of the second membrane unit, and finally may flow out of the pure water outlet 102 of the water purifier 100.
In another embodiment, the first membrane unit 12 is a reverse osmosis membrane unit and the second membrane unit is a mixed roll membrane unit 60.
Specifically, the first filter element 10 is a composite filter element formed by combining the pretreatment unit 11 and the reverse osmosis membrane unit, and the second filter element 20 is a mixed-rolling filter element formed by a single mixed-rolling membrane unit 60. In water production, raw water preliminarily filtered by the pretreatment unit 11 may flow into the first membrane unit 12 and the second membrane unit for filtration, respectively, and then pure water flowing out of the pure water port 12b of the first membrane unit 12 and pure water flowing out of the pure water port 20b of the second membrane unit may be mixed and flow out of the pure water outlet 102 of the water purifier 100.
The structure of the film mixing and winding unit 60 will be described in detail below.
Referring to fig. 5 to 25, in an embodiment, the mixed winding membrane unit 60 includes a central pipe 61 and a filtering membrane element wound around the outer circumference of the central pipe 61, and the filtering membrane element includes at least one nanofiltration membrane sheet 62 and at least one reverse osmosis membrane sheet 63.
There are various combinations of the nanofiltration membrane 62 and the reverse osmosis membrane 63. For example, the filtering membrane elements include a nanofiltration membrane 62 and a reverse osmosis membrane 63. For another example, the filtering membrane elements include one nanofiltration membrane 62 and at least two reverse osmosis membranes 63, wherein the at least two reverse osmosis membranes 63 may be two reverse osmosis membranes 63, three reverse osmosis membranes 63, four reverse osmosis membranes 63, five reverse osmosis membranes 63, six reverse osmosis membranes 63, and the like. Alternatively, the filtering membrane element comprises one reverse osmosis membrane 63 and at least two nanofiltration membranes 62, wherein the at least two nanofiltration membranes 62 may be two nanofiltration membranes 62, three nanofiltration membranes 62, four nanofiltration membranes 62, five nanofiltration membranes 62, six nanofiltration membranes 62, etc. As another example, the filter membrane elements include at least two nanofiltration membrane pieces 62 and at least two reverse osmosis membrane pieces 63. Here, the combination of the nanofiltration membrane 62 and the reverse osmosis membrane 63 is not particularly limited. In addition, the total number and the placement sequence of the nanofiltration membrane 62 and the reverse osmosis membrane 63 are not particularly limited, and can be selected and designed according to the actual use requirement. Optionally, the reverse osmosis membrane 63 has a salt rejection of 90% to 99%, and the nanofiltration membrane 62 has a salt rejection of 0% to 90%.
In the present embodiment, the filter membrane elements are wound around the outer periphery of the center tube 61 and stacked in the radial direction of the center tube 61. The nanofiltration membrane 62 and the reverse osmosis membrane 63 have a winding head end, a winding tail end, and a first side edge and a second side edge connected between the winding head end and the winding micro-end. The nanofiltration membrane sheet 62 is bonded to the adjacent reverse osmosis membrane sheet 63 by a sealing glue line to form a membrane bag between the adjacent nanofiltration membrane sheet 62 and reverse osmosis membrane sheet 63; or two adjacent nanofiltration membrane sheets 62 are bonded through a sealing glue line to form a membrane bag between the two adjacent nanofiltration membrane sheets 62; or two adjacent reverse osmosis membrane sheets 63 are bonded by a sealing glue line to form a membrane bag between two adjacent nanofiltration membrane sheets 62. The film bag has a first opening at the winding head end and a second opening near the winding tail end, the first opening communicating with the plurality of through holes in the center tube 61. Raw water in the central tube 61 enters the membrane bag through the first opening, wastewater is discharged through the second opening, and pure water is discharged from the outer side surface of the membrane bag.
It should be noted that the salt rejection of the plurality of reverse osmosis membranes 63 included in the filter membrane element may be the same, but may be different. Likewise, the rejection rates of the plurality of nanofiltration membrane sheets 62 comprised by the filtration membrane element may be the same, but of course may be different. For example, in one embodiment, the filtration membrane element comprises a first nanofiltration membrane 62 and a second nanofiltration membrane 62, the first nanofiltration membrane 62 having a salt rejection rate that is greater than the salt rejection rate of the second nanofiltration membrane 62.
Optionally, the first nanofiltration membrane 62 has a salt rejection of 40% -90%, such as 40%, 50%, 60%, 70%, 80%, 90%, etc.; the second nanofiltration membrane 62 has a salt rejection of 0-80%, such as 5%, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, etc. Here, by providing the nanofiltration membrane 62 with two different desalination rates, the desalination rate range of the mixed rolling membrane unit 60 can be further widened, which is more beneficial for adjusting the water quality required by the user.
Referring to fig. 1 to 4, the pure water port 20b of the second membrane unit and the pure water port 12b of the first membrane unit 12 intersect with each other through a pipe, and the intersection of the pure water port 20b of the second membrane unit and the pure water port 12b of the first membrane unit 12 is connected to the pure water outlet 102 through a pipe.
As for the position where the regulating valve 40 is disposed, there may be various positions, for example, as shown in fig. 1 and 3, in one embodiment, the regulating valve 40 is disposed between the intersection of the pure water port 20b of the second membrane unit and the pure water port 12b of the first membrane unit 12. So, the raw water gets into booster pump 30 by the delivery port 11b of pretreatment unit 11 after pretreatment unit 11 carries out the prefiltration, and the moisture after the booster pump 30 pressure boost becomes two tunnel and gets into first membrane unit 12 and second membrane unit respectively, adjusts through governing valve 40 the pure water outlet flow of first membrane unit 12, then the pure water outlet flow of second membrane unit can be adjusted automatically, and then can adjust the mixing ratio of the pure water that flows out from first membrane unit 12 and the pure water that flows out from the second membrane unit, reaches the desalination that the user wanted.
For example, if the user wants a salt rejection of about 80% in use, it can be achieved by adjusting the flow rate of the regulating valve 40 to 1380 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the first membrane unit 12 is adjusted to 1380mL/min, the pure water outlet flow of the second membrane unit can be automatically adjusted to 420mL/min because the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate of about 80% desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user wants a salt rejection rate of about 95%, this can be achieved by adjusting the flow rate of the control valve 40 to 1560 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the first membrane unit 12 is adjusted to 1560mL/min, the pure water outlet flow of the second membrane unit can be automatically adjusted to 0mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate which is about 95% and desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user wants a salt rejection of about 75%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 1200 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the first membrane unit 12 is adjusted to 1200mL/min, the pure water outlet flow of the second membrane unit can be automatically adjusted to 760mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form about 75% of desalination rate desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user wants a salt rejection of around 67%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 980 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the first membrane unit 12 is adjusted to 980mL/min, the pure water outlet flow of the second membrane unit can be automatically adjusted to 1260mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate which is about 67% and desired by a user, and finally the pure water is discharged from the pure water outlet 102.
As shown in fig. 2 and 4, in another embodiment, the regulating valve 40 is provided between the intersection of the pure water port 20b of the second membrane unit and the pure water port 12b of the first membrane unit 12 and the pure water port 20b of the second membrane unit. So, the raw water gets into booster pump 30 by the delivery port 11b of pretreatment unit 11 after pretreatment unit 11 carries out the prefiltration, and the moisture after the booster pump 30 pressure boost becomes two tunnel and gets into first membrane unit 12 and second membrane unit respectively, adjusts through governing valve 40 the pure water outlet flow of second membrane unit, then the pure water outlet flow of first membrane unit 12 can be adjusted automatically, and then can adjust the mixing ratio of the pure water that flows out from first membrane unit 12 and the pure water that flows out from the second membrane unit, reaches the desalination that the user wants.
For example, in use, if a user desires a salt rejection rate of about 80%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 420 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the second membrane unit is adjusted to 420mL/min, the pure water outlet flow of the first membrane unit 12 can be automatically adjusted to 1380mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate which is about 80% and desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user wants a salt rejection of around 95%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 0 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the second membrane unit is adjusted to 0mL/min, the pure water outlet flow of the first membrane unit 12 can be automatically adjusted to 1560mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate which is about 95% and desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user wants a salt rejection of around 75%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 760 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the second membrane unit is adjusted to 760mL/min, the pure water outlet flow of the first membrane unit 12 can be automatically adjusted to 1200mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form about 75% of desalination rate desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In use, if the user desires a salt rejection rate of about 67%, this can be achieved by adjusting the flow rate of the regulating valve 40 to 1260 mL/min. The basic regulation logic is as follows: raw water is primarily filtered by the pretreatment unit 11 and then enters the booster pump 30 from the water outlet 11b of the pretreatment unit 11, water pressurized by the booster pump 30 is divided into two paths, the two paths of water respectively enter the first membrane unit 12 and the second membrane unit, the pure water outlet flow of the second membrane unit is adjusted to 1260mL/min, the pure water outlet flow of the first membrane unit 12 can be automatically adjusted to 980mL/min due to the fact that the total amount of water flowing out of the booster pump 30 is constant, the two paths of pure water are mixed to form the desalination rate which is about 67% and is desired by a user, and finally the pure water is discharged from the pure water outlet 102.
In yet another embodiment, the regulating valve 40 may be further disposed between the water inlet 12a of the first membrane unit 12 and the booster pump 30. So, the raw water gets into booster pump 30 by the delivery port 11b of pretreatment unit 11 after pretreatment unit 11 carries out the prefiltration, and the moisture after the booster pump 30 pressure boost becomes two tunnel and gets into first membrane unit 12 and second membrane unit respectively, adjusts the entering through governing valve 40 the inflow of first membrane unit 12, then the inflow that gets into the second membrane unit can be adjusted automatically, and then can adjust the mixing ratio of the pure water that flows out from first membrane unit 12 and the pure water that flows out from the second membrane unit, reaches the desalination that the user wants. Of course, the regulating valve 40 may also be disposed between the water inlet 20a of the second membrane unit and the pressurizing pump 30, and is not particularly limited.
In the above embodiment, the number of the regulating valves 40 is one. It is understood that, in other embodiments, the number of the adjusting valves 40 may be two, wherein one of the adjusting valves 40 is used for independently adjusting the pure water outlet flow rate of the first membrane unit 12, and the other adjusting valve 40 is used for independently adjusting the pure water outlet flow rate of the second membrane unit, which is not limited herein. For the specific setting position of the regulating valve 40, reference may be made to the above-mentioned embodiments, and details thereof are not repeated herein.
Referring to fig. 1 to 4, the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit are both in communication with the waste water outlet 103. Specifically, the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit intersect through a pipeline, and the intersection of the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit is connected to the waste water outlet 103 through a pipeline. Thus, the wastewater of the first membrane unit 12 and the wastewater of the second membrane unit are both discharged from the wastewater outlet 103.
In an embodiment, the water purifier 100 further comprises a waste water valve 50, and the waste water valve 50 is used for adjusting the waste water outlet flow of the waste water outlet.
Alternatively, the waste valve 50 may be a solenoid valve or a waste plug. Wherein the number of the waste water valve 50 may be one, and the waste water valve 50 may be disposed between the intersection of the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit and the waste water outlet 103.
Of course, the number of the waste water valves 50 may be two, wherein one of the waste water valves 50 is disposed between the intersection of the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit and the waste water port 12c of the first membrane unit 12, and the other waste water valve 50 is disposed between the intersection of the waste water port 12c of the first membrane unit 12 and the waste water port 20c of the second membrane unit.
So, make the waste water play water flow of first membrane unit 12 with the waste water play water flow of second membrane unit can set up respectively, thereby makes first membrane unit 12 with the rate of recovery of second membrane unit can set up respectively, can adjust better first membrane unit 12 with the rate of recovery of second membrane unit, controllable space is bigger. Here, the flow rates of the wastewater discharged from the two wastewater valves 50 may be the same or different.
The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (13)
1. A water purifier having a water source inlet and a purified water outlet, the water purifier comprising:
the first filter element comprises a pretreatment unit and a first membrane unit, a water inlet of the pretreatment unit is communicated with the water source inlet, a water outlet of the pretreatment unit is communicated with a water inlet of the first membrane unit, and a pure water outlet of the first membrane unit is communicated with the pure water outlet;
the second filter element comprises a second membrane unit, a water inlet of the second membrane unit is communicated with a water outlet of the pretreatment unit, and a pure water port of the second membrane unit is communicated with the pure water outlet; and
and the regulating valve is used for independently regulating the pure water outlet flow of the first membrane unit or independently regulating the pure water outlet flow of the second membrane unit.
2. The water purifier of claim 1, wherein the first membrane unit is a mixed-volume membrane unit and the second membrane unit is a reverse osmosis membrane unit.
3. The water purifier of claim 1, wherein the first membrane unit is a reverse osmosis membrane unit and the second membrane unit is a mixed-rolling membrane unit.
4. The water purifier according to claim 2 or 3, wherein the mixed roll membrane unit comprises a central pipe and a filtering membrane element wound on the outer periphery of the central pipe, wherein the filtering membrane element comprises at least one nanofiltration membrane sheet and at least one reverse osmosis membrane sheet.
5. The water purifier of claim 4, wherein the reverse osmosis membrane has a rejection rate of 90% to 99% and the nanofiltration membrane has a rejection rate of 0% to 90%.
6. The water purifier of claim 4, wherein the filtration membrane element comprises a first nanofiltration membrane sheet and a second nanofiltration membrane sheet, the first nanofiltration membrane sheet having a salt rejection greater than the salt rejection of the second nanofiltration membrane sheet.
7. The water purifier of claim 6, wherein the first nanofiltration membrane has a rejection rate of 40% to 90% and the second nanofiltration membrane has a rejection rate of 0% to 80%.
8. The water purifier of claim 6, wherein the filter membrane element comprises a nanofiltration membrane and a reverse osmosis membrane;
or the filtering membrane element comprises a nanofiltration membrane and at least two reverse osmosis membranes;
or the filtering membrane element comprises a reverse osmosis membrane and at least two nanofiltration membranes;
or the filtering membrane element comprises at least two nanofiltration membrane pieces and at least two reverse osmosis membranes.
9. The water purifier according to claim 2 or 3, wherein the pure water port of the first membrane unit and the pure water port of the second membrane unit are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the first membrane unit and the pure water port of the second membrane unit and the pure water port of the first membrane unit.
10. The water purifier according to claim 2 or 3, wherein the pure water port of the first membrane unit and the pure water port of the second membrane unit are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the first membrane unit and the pure water port of the second membrane unit.
11. The water purification machine according to claim 2 or 3, wherein said water purification machine further has a wastewater outlet, said wastewater outlet of said first membrane unit and said wastewater outlet of said second membrane unit both being in communication with said wastewater outlet; the water purifier also comprises a waste water valve, and the waste water valve is used for adjusting the waste water outlet flow of the waste water outlet.
12. The water purifier of claim 11, wherein the waste water port of the first membrane unit and the waste water port of the second membrane unit intersect via a pipe, and the waste water valve is disposed between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit and the waste water outlet.
13. The water purification machine according to claim 11, wherein the waste water port of the first membrane unit and the waste water port of the second membrane unit intersect through a pipeline, and the number of the waste water valves is two, wherein one of the waste water valves is arranged between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit and the waste water port of the first membrane unit, and the other waste water valve is arranged between the intersection of the waste water port of the first membrane unit and the waste water port of the second membrane unit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111018862.3A CN114162999A (en) | 2021-08-31 | 2021-08-31 | Water purifier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111018862.3A CN114162999A (en) | 2021-08-31 | 2021-08-31 | Water purifier |
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| CN114162999A true CN114162999A (en) | 2022-03-11 |
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| CN104556457A (en) * | 2015-01-30 | 2015-04-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN110885112A (en) * | 2019-11-29 | 2020-03-17 | 北京碧水源膜科技有限公司 | Composite membrane element suitable for different water qualities and manufacturing method |
| CN212315729U (en) * | 2019-12-31 | 2021-01-08 | 佛山市云米电器科技有限公司 | Water channel of double-outlet water quality adjusting system |
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2021
- 2021-08-31 CN CN202111018862.3A patent/CN114162999A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104556457A (en) * | 2015-01-30 | 2015-04-29 | 佛山市顺德区美的饮水机制造有限公司 | Water purification system |
| CN110885112A (en) * | 2019-11-29 | 2020-03-17 | 北京碧水源膜科技有限公司 | Composite membrane element suitable for different water qualities and manufacturing method |
| CN212315729U (en) * | 2019-12-31 | 2021-01-08 | 佛山市云米电器科技有限公司 | Water channel of double-outlet water quality adjusting system |
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