CN114162996A

CN114162996A - Water purifier

Info

Publication number: CN114162996A
Application number: CN202111017763.3A
Authority: CN
Inventors: 谈菲; 桂鹏; 宾倩韵; 廖榆敏
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-11

Abstract

The invention discloses a water purifier, wherein the water purifier is provided with a water source inlet and a pure water outlet, the water purifier comprises a reverse osmosis filter element, a mixed-coiling filter element and a regulating valve, a water inlet of the reverse osmosis filter element is communicated with the water source inlet, and a pure water port of the reverse osmosis filter element is communicated with the pure water outlet; the water inlet of the roll mixing filter element is communicated with the water source inlet, and the pure water port of the roll mixing filter element is communicated with the pure water outlet; the regulating valve is used for independently regulating the pure water outlet flow of the reverse osmosis filter element or independently regulating the pure water outlet flow of the mixed roll filter element. 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

Water purifier

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 water inlet of the reverse osmosis filter element is communicated with the water source inlet, and the pure water port of the reverse osmosis filter element is communicated with the pure water outlet;

the water inlet of the roll mixing filter element is communicated with the water source inlet, and the pure water port of the roll mixing filter element is communicated with the pure water outlet; and

and the regulating valve is used for independently regulating the pure water outlet flow of the reverse osmosis filter element or independently regulating the pure water outlet flow of the mixed roll filter element.

In one embodiment, the method further comprises:

In one embodiment, the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element and the pure water port of the reverse osmosis filter element.

In one embodiment, the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element.

In one embodiment, the water purifier comprises a pretreatment filter element, a water inlet of the pretreatment filter element is communicated with the water source inlet, and a water outlet of the pretreatment filter element is communicated with a water inlet of the reverse osmosis filter element and a water inlet of the mixed roll filter element.

In one embodiment, the water purifier comprises a composite filter element, the composite filter element comprises a pretreatment unit and a post-treatment unit, a water inlet of the pretreatment unit is communicated with the water source inlet, and a water outlet of the pretreatment unit is communicated with a water inlet of the reverse osmosis filter element and a water inlet of the mixed-volume filter element;

the water inlet of the post-treatment unit is communicated with the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element, and the water outlet of the post-treatment unit is communicated with the pure water outlet.

In one embodiment, the water purifier is further provided with a wastewater outlet, and the wastewater outlet of the reverse osmosis filter element and the wastewater outlet of the mixed winding filter element 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 inlet of the reverse osmosis filter element and the waste water inlet of the mixed roll filter element are intersected through a pipeline, and the waste water valve is arranged between the intersection of the waste water inlet of the reverse osmosis filter element and the waste water inlet of the mixed roll filter element and the waste water outlet.

In one embodiment, the waste water port of the reverse osmosis filter element and the waste water port of the mixed roll filter element are intersected 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 reverse osmosis filter element and the waste water port of the mixed roll filter element and the waste water port of the reverse osmosis filter element, and the other waste water valve is arranged between the intersection of the waste water port of the reverse osmosis filter element and the waste water port of the mixed roll filter element.

In one embodiment, the mixed-roll filter element comprises a central tube and a filter membrane element wound on the periphery of the central tube, wherein the filter 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 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 membrane assembly comprises a reverse osmosis membrane and at least two nanofiltration membranes;

or the membrane assembly comprises at least two nanofiltration membrane pieces and at least two reverse osmosis membranes.

The water purifier comprises a reverse osmosis filter element, a mixed-coiling filter element and a regulating valve, wherein a water inlet of the reverse osmosis filter element is communicated with a water source inlet, and a pure water port of the reverse osmosis filter element is communicated with a pure water outlet; the water inlet of the roll mixing filter element is communicated with the water source inlet, and the pure water port of the roll mixing filter element is communicated with the pure water outlet; the regulating valve is used for independently regulating the pure water outlet flow of the reverse osmosis filter element or independently regulating the pure water outlet flow of the mixed roll filter element; so, when making water, raw water (running water) is divided into two the tunnel by the water source entry after flowing in, gets into the reverse osmosis filter core all the way and filters, and another way gets into mixes a roll filter core and filters, and finally, the pure water that flows out from the pure water mouth of reverse osmosis filter core mixes the back with the pure water that flows out from mixing a roll filter core's pure water mouth and flows out 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 reverse osmosis filter element or the pure water outlet flow of the mixed roll filter element can be adjusted, the mixing proportion of the pure water outlet of the reverse osmosis filter element and the pure water outlet of the mixed roll filter element is further adjusted, so that the range of the desalination rate of the pure water outlet of the water purifier is widened, the range of the desalination rate 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 diagram of a water circuit of a fourth embodiment of the water purifier according to the present invention;

FIG. 6 is a schematic diagram of a water circuit of a fifth embodiment of the water purifier according to the present invention;

FIG. 7 is a schematic diagram of a water circuit of a water purifier according to a sixth embodiment of the invention;

FIG. 8 is a schematic diagram of a water circuit of a water purifier according to a seventh embodiment of the invention;

FIG. 9 is a schematic structural view of a first embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 10 is a schematic structural view of a second embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 11 is a schematic structural view of a third embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 12 is a schematic structural view of a fourth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 13 is a schematic structural view of a fifth embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 14 is a schematic structural view of a sixth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 15 is a schematic structural view of a seventh embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 16 is a schematic structural view of an eighth embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 17 is a schematic structural view of a ninth embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 18 is a schematic structural view of a tenth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 19 is a schematic structural view of an eleventh embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 20 is a schematic structural view of a twelfth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 21 is a schematic structural view of a thirteenth embodiment of a combined rolling membrane cartridge of a water purifier according to the present invention;

FIG. 22 is a schematic structural view of a fourteenth embodiment of a rolling membrane cartridge of a water purifier according to the present invention;

FIG. 23 is a schematic structural view of a fifteenth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 24 is a schematic structural view of a sixteenth embodiment of a mixed rolling membrane cartridge of a water purifier according to the present invention;

FIG. 25 is a schematic structural view of a seventeenth embodiment of a mixed-rolling membrane filter element of a water purifier according to the present invention;

FIG. 26 is a schematic structural view of an eighteenth embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 27 is a schematic structural view of a nineteenth embodiment of a mixed-rolling membrane cartridge of a water purifier according to the present invention;

FIG. 28 is a schematic structural view of a twentieth embodiment of a mixed-rolled membrane cartridge of a water purifier according to the present invention;

fig. 29 is a schematic structural view of a twenty-first embodiment of a combined roll membrane cartridge 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 8, a water purifier 100 according to the present invention includes 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 reverse osmosis filter element 20 and a mixed-volume filter element 60. The water inlet 20a of the reverse osmosis filter element 20 is communicated with the water source inlet 101, and the pure water port 20b of the reverse osmosis filter element 20 is communicated with the pure water outlet 102; the water inlet 60a of the mixing and rolling filter element 60 is communicated with the water source inlet 101, and the pure water port 60b of the mixing and rolling filter element 60 is communicated with the pure water outlet 102.

Specifically, the reverse osmosis filter element 20 and the mixing roll filter element 60 are arranged in parallel between the water source inlet 101 and the pure water outlet 102. Thus, the raw water entering from the water source inlet 101 is divided into two paths, one of which flows into the reverse osmosis filter element 20 and the other of which flows into the mixed roll filter element 60, and finally, the pure water flowing out of the pure water port 20b of the reverse osmosis filter element 20 is mixed with the pure water flowing out of the pure water port 60b of the mixed roll filter element 60 and flows out of the pure water outlet 102.

Wherein the reverse osmosis cartridge 20 comprises a plurality of reverse osmosis membranes 63. The mixed roll filter element 60 at least comprises a nanofiltration membrane 62 and a reverse osmosis membrane 63, and the structure of the mixed roll filter element 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-.

Optionally, the reverse osmosis cartridge 20 has a rejection of 85% to 99%, e.g., 85%, 90%, 92%, 95%, 97%, 99%. The salt rejection rate of the mixed rolling membrane filter element 60 is 10% to 90%, for example, 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 85%, 90%, etc. Because the desalination rate scope of the two is different, in the water production process, can be through adjusting reverse osmosis filter core 20's pure water outlet flow or thoughtlessly rolling up membrane filter core 60's pure water outlet flow, and then adjust reverse osmosis filter core 20's pure water outlet and thoughtlessly rolling up membrane filter core 60's pure water outlet's mixing proportion, thereby widened the desalination rate scope of this water purifier 100's pure water outlet, make the desalination rate scope of this water purifier 100 be 10% -99%, can satisfy the demand of user to different quality of water well, improve user's use experience.

In the embodiment of the present invention, the water purifier 100 further includes a pressurizing pump 30, and the pressurizing pump 30 can pressurize the water to ensure a total flow rate of the water flowing into the reverse osmosis filter element 20 and the mixing and rolling filter element 60. Wherein, the water inlet 20a of the reverse osmosis filter element 20 is crossed with the water inlet 60a of the mixed roll filter element 60 through a pipeline, and the booster pump 30 is arranged between the crossing position of the water inlet 20a of the reverse osmosis filter element 20 and the water inlet 60a of the mixed roll filter element 60 and the water source inlet 101.

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 reverse osmosis filter element 20 or independently adjust the pure water outlet flow of the mixed-winding filter element 60. It should be noted that, since the total amount of the water flowing out of the booster pump 30 is constant, that is, the total amount of the water flowing into the reverse osmosis filter element 20 and the mixed roll filter element 60 is constant, if the pure water outlet flow rate of the reverse osmosis filter element 20 is adjusted by the adjusting valve 40, the pure water outlet flow rate of the mixed roll filter element 60 will be automatically adjusted; similarly, if the pure water outlet flow rate of the mixed roll filter element 60 is adjusted by the adjusting valve 40, the pure water outlet flow rate of the reverse osmosis filter element 20 is automatically adjusted. Therefore, the pure water outlet flow of one of the filter elements is adjusted through the adjusting valve 40, and the pure water outlet flow of the other filter element can be automatically and correspondingly adjusted, so that the effect of adjusting the mixing proportion of the pure water outlet of the reverse osmosis filter element 20 and the pure water outlet of the mixed roll filter element 60 can be achieved, the desalination rate of the outlet water 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 reverse osmosis filter element 20 and a mixed-rolling filter element 60, wherein a water inlet 20a of the reverse osmosis filter element 20 is communicated with a water source inlet 101, and a pure water port 20b of the reverse osmosis filter element 20 is communicated with a pure water outlet 102; the water inlet 60a of the mixing and rolling filter element 60 is communicated with the water source inlet 101, and the pure water port 60b of the mixing and rolling filter element 60 is communicated with the pure water outlet 102; the adjusting valve 40 is used for independently adjusting the pure water outlet flow of the reverse osmosis filter element 20 or independently adjusting the pure water outlet flow of the mixed-winding filter element 60; thus, when water is produced, raw water (tap water) flows in from the water source inlet 101 and is divided into two paths, one path enters the reverse osmosis filter element 20 for filtration, the other path enters the mixed roll filter element 60 for filtration, and finally, pure water flowing out from the pure water port 20b of the reverse osmosis filter element 20 is mixed with pure water flowing out from the pure water port 60b of the mixed roll filter element 60 and then flows out from the pure water outlet 102 of the water purifier 100 for use by a user. In system water in-process, can be through adjusting reverse osmosis filter core 20's pure water outlet flow or mixing the pure water outlet flow of rolling up filter core 60, and then adjust reverse osmosis filter core 20's pure water outlet and mix the mixing proportion of rolling up filter core 60's pure water outlet to can satisfy the demand of user to different quality of water well, improve user's use and experience.

Referring to fig. 1 to 8, the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mixed roll filter element 60 intersect through a pipeline, and the intersection of the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mixed roll filter element 60 is connected to the pure water outlet 102 through a pipeline.

As for the setting position of the regulating valve 40, there are various positions, for example, as shown in fig. 1 and 3, in one embodiment, the regulating valve 40 is provided between the intersection of the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mix-roll filter element 60 and the pure water port 20b of the reverse osmosis filter element 20. So, raw water becomes two tunnel and gets into reverse osmosis filter core 20 respectively and thoughtlessly rolls up filter core 60 after booster pump 30 pressure boost, adjusts through governing valve 40 reverse osmosis filter core 20's pure water outlet flow, then thoughtlessly roll up filter core 60's pure water outlet flow can be adjusted automatically, and then can adjust the pure water that flows out from reverse osmosis filter core 20 and thoughtlessly roll up the mixing proportion of the pure water that filter core 60 flowed out from, reach the desalination that the user wanted.

In use, if the user wants a salt rejection of around 80%, this 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed winding filter element 60, the pure water outlet flow of the reverse osmosis filter element 20 is adjusted to 1380mL/min, the pure water outlet flow of the mixed winding filter element 60 can be automatically adjusted to 420mL/min due to the fact that the total amount of water flowing into the reverse osmosis filter element 20 and the mixed winding filter element 60 is certain, the two paths of pure water are mixed to form about 80% of desalination rate desired by a user, and finally the pure water is discharged from a 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths and respectively enters a reverse osmosis filter element 20 and a mixed rolling filter element 60, the pure water outlet flow of the reverse osmosis filter element 20 is adjusted to 1560mL/min, the pure water outlet flow of the mixed rolling filter element 60 can be automatically adjusted to 0mL/min due to the fact that the total amount of water flowing into the reverse osmosis filter element 20 and the mixed rolling filter element 60 is constant, the two paths of pure water are mixed to form about 95% of desalination rate desired by a user, and finally the pure water is discharged from a 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed roll filter element 60, the pure water outlet flow of the reverse osmosis filter element 20 is adjusted to 1200mL/min, the total amount of water flowing into the reverse osmosis filter element 20 and the mixed roll filter element 60 is certain, the pure water outlet flow of the mixed roll filter element 60 can be automatically adjusted to 760mL/min, 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 a 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed rolling filter element 60, the pure water outlet flow of the reverse osmosis filter element 20 is adjusted to 980mL/min, the total amount of water flowing into the reverse osmosis filter element 20 and the mixed rolling filter element 60 is certain, the pure water outlet flow of the mixed rolling filter element 60 can be automatically adjusted to 1260mL/min, the two paths of pure water are mixed to form about 67% of desalination rate desired by a user, and finally the pure water is discharged from a pure water outlet 102.

In another embodiment, as shown in fig. 2 and 4, the regulating valve 40 is disposed between the intersection of the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mixing and rolling filter element 60. So, raw water becomes two tunnel and gets into reverse osmosis filter core 20 respectively and thoughtlessly roll up filter core 60 after booster pump 30 pressure boost, adjusts through governing valve 40 thoughtlessly roll up the pure water outlet flow of filter core 60, then reverse osmosis filter core 20's pure water outlet flow can be adjusted automatically, and then can adjust the pure water that flows out from reverse osmosis filter core 20 and from thoughtlessly rolling up the mixing proportion of the pure water that filter core 60 flowed out, reach the desalination that the user wanted.

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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed winding filter element 60, the pure water outlet flow of the mixed winding filter element 60 is adjusted to 420mL/min, the total amount of water flowing into the reverse osmosis filter element 20 and the mixed winding filter element 60 is certain, the pure water outlet flow of the reverse osmosis filter element 20 can be automatically adjusted to 1380mL/min, the two paths of pure water are mixed to form about 80% of desalination rate desired by a user, and finally the pure water is discharged from a 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed rolling filter element 60, the pure water outlet flow of the mixed rolling filter element 60 is adjusted to 0mL/min, the total amount of water flowing into the reverse osmosis filter element 20 and the mixed rolling filter element 60 is certain, the pure water outlet flow of the reverse osmosis filter element 20 can be automatically adjusted to 1560mL/min, the two paths of pure water are mixed to form about 95% of desalination rate desired by a user, and finally the pure water is discharged from a 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 enters from a water source inlet 101, water pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed rolling filter element 60, the pure water outlet flow of the mixed rolling filter element 60 is adjusted to 760mL/min, the total amount of water flowing into the reverse osmosis filter element 20 and the mixed rolling filter element 60 is certain, the pure water outlet flow of the reverse osmosis filter element 20 can be automatically adjusted to 1200mL/min, 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 a 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 enters from a water source inlet 101, water after being pressurized by a booster pump 30 is divided into two paths, the two paths of water respectively enter a reverse osmosis filter element 20 and a mixed rolling filter element 60, the pure water outlet flow of the mixed rolling filter element 60 is adjusted to 1260mL/min, and the pure water outlet flow of the reverse osmosis filter element 20 can be automatically adjusted to 980mL/min due to the fact that the total amount of the water flowing into the reverse osmosis filter element 20 and the mixed rolling filter element 60 is certain, the two paths of pure water are mixed to form the desalination rate which is about 67% and is wanted by a user, and finally the pure water is discharged from a pure water outlet 102.

In yet another embodiment, the regulating valve 40 may be further disposed between the water inlet 20a of the reverse osmosis cartridge 20 and the pressurizing pump 30. So, raw water divides into two the tunnel respectively and gets into reverse osmosis filter core 20 and thoughtlessly roll up filter core 60 after booster pump 30 pressure boost, adjusts the entering through governing valve 40 the inflow of reverse osmosis filter core 20, then the inflow that gets into thoughtlessly roll up filter core 60 can be adjusted automatically, and then can adjust the pure water that flows out from reverse osmosis filter core 20 and the mixing proportion of the pure water that flows out from thoughtlessly roll up filter core 60, reach the desalination that the user wanted. Of course, the regulating valve 40 may also be disposed between the water inlet 60a of the mixing and rolling filter element 60 and the booster 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 reverse osmosis filter element 20, and the other adjusting valve 40 is used for independently adjusting the pure water outlet flow rate of the mixing and rolling filter element 60, 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, in an embodiment, the water purifier 100 includes a pretreatment filter element 10, and the pretreatment filter element 10 is mainly used for primarily filtering raw water entering from a water source inlet 101 to filter out impurities, organic matters and the like in the raw water. The water inlet 10a of the pretreatment filter element 10 is communicated with the water source inlet 101, and the water outlet 10b of the pretreatment filter element 10 is communicated with the water inlet 20a of the reverse osmosis filter element 20 and the water inlet 60a of the mixed roll filter element 60. Alternatively, the pretreatment cartridge 10 may be a PP cartridge or an activated carbon cartridge, etc.

In this embodiment, the intersection of the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mix-roll filter element 60 directly communicates with the pure water outlet 102. Because the reverse osmosis filter element 20 and the mixed roll filter element 60 completely filter the mineral substances in the raw water, the pure water filtered by the reverse osmosis filter element 20 and the mixed roll filter element 60 can be directly discharged for users to use without adjusting the taste through the activated carbon.

Of course, in another embodiment, referring to fig. 5 to 8, the water purifier 100 includes a composite filter element 70, and the composite filter element 70 includes a pre-treatment unit and a post-treatment unit. That is, the composite filter element 70 is formed by combining the pretreatment unit and the post-treatment unit.

The water inlet 70a of the pretreatment unit is communicated with the water source inlet 101, and the water outlet 70b of the pretreatment unit is communicated with the water inlet 20a of the reverse osmosis filter element 20 and the water inlet 60a of the mixed roll filter element 60. The water inlet 70c of the post-treatment unit is communicated with the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mixed roll filter element 60, and the water outlet 70d of the post-treatment unit is communicated with the pure water outlet 103. Optionally, the pretreatment unit may be a PP filter unit or an activated carbon filter unit, and the post-treatment unit may be an activated carbon filter unit.

In this embodiment, the intersection of the pure water port 20b of the reverse osmosis filter element 20 and the pure water port 60b of the mix-roll filter element 60 communicates with the water inlet of the post-treatment unit. Thus, the pure water filtered by the reverse osmosis filter element 20 and the pure water filtered by the mixed roll filter element 60 are mixed and then enter the post-treatment unit for post-treatment, and finally flow out from the pure water outlet 103. Thus, by arranging the composite filter element 70, not only can the raw water entering from the water source inlet 101 be primarily filtered, but also impurities, organic matters and other substances in the raw water can be filtered; the taste of the pure water flowing out of the pure water outlet 102 can be adjusted.

Referring to fig. 1 to 8, the waste water port 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixing and rolling filter element 60 are both communicated with the waste water outlet 103. Specifically, the waste water port 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixed roll filter element 60 intersect through a pipeline, and the intersection of the waste water port 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixed roll filter element 60 is connected with the waste water outlet 103 through a pipeline. Thus, the wastewater of the reverse osmosis filter element 20 and the wastewater of the mixed roll filter element 60 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 flow rate of the waste water outlet 103. Alternatively, the waste valve 50 may be a solenoid valve or a waste plug. As shown in fig. 1 and 2, the number of the waste water valves 50 may be one, and the waste water valve 50 is disposed between the intersection of the waste water port 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixed roll filter element 60 and the waste water outlet 103.

Of course, as shown in fig. 3 and 4, 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 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixed volume filter element 60 and the waste water port 20c of the reverse osmosis filter element 20, and the other of the waste water valves 50 is disposed between the intersection of the waste water port 20c of the reverse osmosis filter element 20 and the waste water port 60c of the mixed volume filter element 60. So, make reverse osmosis filter core 20's waste water outlet flow with the waste water outlet flow who thoughtlessly rolls up filter core 60 can set up respectively, thereby makes reverse osmosis filter core 20 with thoughtlessly roll up filter core 60's rate of recovery can set up respectively, can adjust better reverse osmosis filter core 20 with thoughtlessly roll up filter core 60's rate of recovery, 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 construction of the mixing roll cartridge 60 will be described in detail below.

Referring to fig. 9 to 29, in an embodiment, the mixed-roll filter element 60 includes a central pipe 61 and a filter membrane element wound around the outer circumference of the central pipe 61, and the filter 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 element includes 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. Or, the filtering membrane element includes a 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, and the like. As another example, the filtration membrane element comprises 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%.

Referring to fig. 9 to 29, if the filter membrane element includes three membrane sheets, the three membrane sheets may include one nanofiltration membrane sheet 62 and two reverse osmosis membrane sheets 63, or two nanofiltration membrane sheets 62 and one reverse osmosis membrane sheet 63. If the filter membrane element comprises four membranes, the four membranes may comprise one nanofiltration membrane 62 and three reverse osmosis membranes 63, or two nanofiltration membranes 62 and two reverse osmosis membranes 63, or three nanofiltration membranes 62 and one reverse osmosis membrane 63. If the filtering membrane element comprises five membranes, the five membranes may comprise one nanofiltration membrane 62 and four reverse osmosis membranes 63, or two nanofiltration membranes 62 and three reverse osmosis membranes 63, or three nanofiltration membranes 62 and two reverse osmosis membranes 63, or four nanofiltration membranes 62 and one reverse osmosis membrane 63. If the filtering membrane element comprises six membranes, the six membranes may comprise one nanofiltration membrane 62 and five reverse osmosis membranes 63, or two nanofiltration membranes 62 and four reverse osmosis membranes 63, or three nanofiltration membranes 62 and three reverse osmosis membranes 63, or four nanofiltration membranes 62 and two reverse osmosis membranes 63, or five nanofiltration membranes 62 and one reverse osmosis membrane 63. If the filtering membrane element includes seven membranes, the seven membranes may include one nanofiltration membrane 62 and six reverse osmosis membranes 63, or two nanofiltration membranes 62 and five reverse osmosis membranes 63, or three nanofiltration membranes 62 and four reverse osmosis membranes 63, or four nanofiltration membranes 62 and three reverse osmosis membranes 63, or five nanofiltration membranes 62 and two reverse osmosis membranes 63, or six nanofiltration membranes 62 and one reverse osmosis membrane 63.

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 salt rejection rate of the first nanofiltration membrane 62 is 40% to 90%, and the salt rejection rate of the second nanofiltration membrane 62 is 0% to 80%. Here, by providing the nanofiltration membrane 62 with two different desalination rates, the desalination rate range of the rolling membrane filter element 60 can be further widened, which is more beneficial for adjusting the water quality required by the user.

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

1. A water purifier having a water source inlet and a purified water outlet, the water purifier comprising:

2. The water purifier of claim 1, wherein the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the reverse osmosis filter element and the pure water port of the mixed roll filter element and the pure water port of the reverse osmosis filter element.

3. The water purifier of claim 1, wherein the pure water port of the reverse osmosis filter element and the pure water port of the mixed volume filter element are intersected through a pipeline, and the regulating valve is arranged between the intersection of the pure water port of the reverse osmosis filter element and the pure water port of the mixed volume filter element.

4. The water purifier of claim 1, wherein the water purifier comprises a pretreatment filter element, a water inlet of the pretreatment filter element is communicated with the water source inlet, and a water outlet of the pretreatment filter element is communicated with a water inlet of the reverse osmosis filter element and a water inlet of the mixing and rolling filter element.

5. The water purifier as recited in claim 1, wherein the water purifier comprises a composite filter element, the composite filter element comprises a pretreatment unit and a post-treatment unit, a water inlet of the pretreatment unit is communicated with the water source inlet, and a water outlet of the pretreatment unit is communicated with a water inlet of the reverse osmosis filter element and a water inlet of the mixed-volume filter element;

6. The water purification machine according to any one of claims 1 to 5, wherein the water purification machine further has a wastewater outlet, and the wastewater inlet of the reverse osmosis filter element and the wastewater inlet of the co-mingling filter element 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.

7. The water purifier as recited in claim 6, wherein said wastewater inlet of said reverse osmosis filter element and said wastewater outlet of said mix-roll filter element are intersected by a pipeline, and said wastewater valve is disposed between said wastewater outlet and an intersection of said wastewater inlet of said reverse osmosis filter element and said wastewater outlet of said mix-roll filter element.

8. The water purifier as recited in claim 6, wherein said waste water port of said reverse osmosis filter element and said waste water port of said mixing and rolling filter element are crossed by a pipeline, and the number of said waste water valves is two, wherein one of said waste water valves is disposed between the crossing of said waste water port of said reverse osmosis filter element and said waste water port of said mixing and rolling filter element and said waste water port of said reverse osmosis filter element, and the other of said waste water valves is disposed between the crossing of said waste water port of said reverse osmosis filter element and said waste water port of said mixing and rolling filter element.

9. The water purifier according to any one of claims 1-5, wherein the mixed-volume filter element comprises a central tube and a filter membrane element wrapped around the outer circumference of the central tube, the filter membrane element comprising at least one nanofiltration membrane sheet and at least one reverse osmosis membrane sheet.

10. The water purifier of claim 9, 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%.

11. The water purifier of claim 9, 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.

12. The water purifier of claim 9, wherein the filtration membrane element comprises a nanofiltration membrane and a reverse osmosis membrane;