CN214693539U - Rearmounted filter element subassembly of water purifier and water purifier - Google Patents
Rearmounted filter element subassembly of water purifier and water purifier Download PDFInfo
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- CN214693539U CN214693539U CN202022833801.XU CN202022833801U CN214693539U CN 214693539 U CN214693539 U CN 214693539U CN 202022833801 U CN202022833801 U CN 202022833801U CN 214693539 U CN214693539 U CN 214693539U
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- water
- water outlet
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- osmosis membrane
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 300
- 239000012528 membrane Substances 0.000 claims abstract description 70
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 67
- 239000012530 fluid Substances 0.000 claims abstract description 20
- 239000002351 wastewater Substances 0.000 claims description 30
- 239000002131 composite material Substances 0.000 claims description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052799 carbon Inorganic materials 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000010354 integration Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 description 9
- 238000000746 purification Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Separation Using Semi-Permeable Membranes (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The utility model discloses a rearmounted filter element subassembly of water purifier, include: a first filter element having a header disposed therein; a sleeve disposed in the header; a second filter element disposed in the sleeve; and a center tube disposed in the second filter element; one of the first filter element water outlet and the second filter element water outlet is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the other one is in fluid connection with the water outlet terminal. Also discloses a water purifier. The utility model discloses an aspect can guarantee to wash the independence in water route and rearmounted water route, and on the other hand has kept the holistic miniaturization and the integration of water purifier when increasing to wash the filter core, reduces the whole volume of water purifier.
Description
Technical Field
The utility model belongs to the technical field of water purification unit, especially, relate to a rearmounted filter element group spare of water purifier to and a water purifier with this kind of rearmounted filter element group spare of water purifier.
Background
The reverse osmosis membrane water purifier is divided into a barrel type and a barrel-free type according to whether a pressure barrel is arranged in the reverse osmosis membrane water purifier. The water pressure of the organic barrel type is relatively low, the water making speed is relatively low, and the water purifying quantity is 0.1L-0.25L/min. The water production speed of the barrel type is independent of the tail end flow. The pressure barrel can automatically store water in a non-use state. When water is taken, the water in the pressure barrel can be directly supplied to the outside, and the effect of taking water at any time is achieved. The water yield is larger than that of the barrel-free machine. Because the pressure barrel is arranged, even if the water purifier is just started or the water is cut off, the TDS value of the taken purified water can be kept in a normal range, and the problem of pure water supply is solved. However, the provision of a pressure tank, with the filter cartridge fitted thereto, occupies at least a significant portion of the internal space within a double-door cabinet. The barrel-free type also considers the use requirement of instant filtering and drinking, and the water pressure is far higher than that of the barrel-free type. Raw water of a barrel-free type passes through three to five filter elements at one time, and the water production speed directly influences the tail end flow. The pressure of the common barrel-free type is over 400G, even over 500G. The non-barrel type machine utilizes the water making capacity of the non-barrel type machine to replace a pressure barrel, so that the volume of the whole machine is obviously reduced, the internal space of the cabinet is fully released, and the non-barrel type machine is obviously favored by users.
Another problem faced by the tubless model is that each first cup of water undergoes a process of TDS values from high to low. When starting system water promptly at every turn, the TDS value of the first cup of water of output is all higher, need emit the water purification of a period and just can fall the TDS value to normal range. To solve this problem, the prior art discloses a corresponding solution, such as the solution disclosed in the chinese utility model patent (publication No. CN 210193476U): "a reverse osmosis water purification system and water purification unit, includes inlet channel, booster pump, reverse osmosis membrane filter core, pure water outlet pipe way and waste water pipeline: the water inlet pipeline is connected with the water inlet of the booster pump, the water outlet of the booster pump is connected with the water inlet of the reverse osmosis membrane filter element, and the water outlet of the reverse osmosis membrane filter element is connected with the pure water outlet pipeline; the waste water pipeline is connected with a waste water outlet of the reverse osmosis membrane filter element; the water inlet pipeline is provided with a water inlet electromagnetic valve; a wastewater electromagnetic valve is arranged on the wastewater pipeline; an air inlet pipe is communicated with the water inlet pipeline between the water inlet electromagnetic valve and the booster pump, and the air inlet pipe is provided with an air inlet electromagnetic valve; when water is produced, the water inlet electromagnetic valve and the waste water electromagnetic valve are opened, and the air inlet electromagnetic valve is closed; after the system water, the booster pump lasts work and sets for the time, and in setting for the time, the solenoid valve of intaking is closed, and solenoid valve and waste water solenoid valve open of admitting air for the water of high TDS value before the membrane is discharged from the waste water pipeline, solves the problem that first cup water TDS is high on the left. This approach may increase the user's latency.
The Chinese invention patent (CN 111974218A) discloses another corresponding technical scheme, namely a control method of a water purification system and the water purification system, wherein a flushing filter element is connected in parallel on a pipeline between a water outlet of a booster pump and a water inlet of a main filter element, and a first electromagnetic valve is arranged on the pipeline between the water outlet of the booster pump and the water inlet of the main filter element; after system water stops, close first solenoid valve, open and wash filter core waste water solenoid valve, the booster pump operation, water gets into and washes the filter core, filter the back by washing the filter core and enter main filter core, carry out before the membrane to main filter core and wash, make the TDS value of main filter core membrane front side waste water reduce, simultaneously through installing the waste water mouth TDS value that acquires main filter core in the first detection device at main filter core waste water mouth, stop washing when it is less than first default, make the main filter core membrane inboard side all soaked by the pure water of lower TDS value, solve the technical problem that first cup water TDS is high on the side. The problem that the TDS of the first cup of water is higher can be well solved by utilizing the flushing of the flushing filter element, however, the flushing filter element is introduced, so that the volume of the water purifier is further increased on the basis that three to five filter elements are originally arranged, and the advantage of the equipment without a barrel type is weakened.
Disclosure of Invention
The utility model aims at providing a rearmounted filter element subassembly of water purifier both can solve the problem that first cup water TDS is high on the high side, does not increase water purifier equipment volume simultaneously again.
In order to realize the purpose of the utility model, the utility model adopts the following technical scheme to realize:
a water purifier post-filter element assembly comprising: a first filter element having a header disposed therein; a sleeve disposed in the header; a second filter element disposed in the sleeve; and a center tube disposed in the second filter element; one of the first filter element water outlet and the second filter element water outlet is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the other one is in fluid connection with the water outlet terminal.
As an alternative, the first filter element is a flushed reverse osmosis membrane and the second filter element is a carbon filter element.
Further, the method also comprises the following steps: a housing in which the first filter element is disposed; a first filter element water inlet, a first filter element water outlet, a first filter element waste water outlet, a second filter element water inlet and a second filter element water outlet are formed in one end of the shell; the water outlet of the second filter element is communicated with the central pipe.
As another alternative, the first filter element is a carbon filter element and the second filter element is a flushed reverse osmosis membrane.
Another aspect of the utility model provides a water purifier, including the reverse osmosis membrane filter core, still include the rearmounted filter element group spare of water purifier, include: a first filter element having a header disposed therein; a sleeve disposed in the header; a second filter element disposed in the sleeve; and a center tube disposed in the second filter element; one of the first filter element water outlet and the second filter element water outlet is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the other one is in fluid connection with the water outlet terminal.
Further, the method also comprises the following steps: a pre-compound filter element fluidly connected to the first filter element water inlet; wherein, the water outlet of the first filter element is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the wastewater outlet of the first filter element is in fluid connection with the concentrated water outlet or the water outlet of the preposed composite filter element; the water outlet of the reverse osmosis membrane filter element is in fluid connection with the water inlet of the second filter element, and the water outlet of the second filter element is in fluid connection with the pure water outlet.
Further, the method also comprises the following steps: the first one-way valve is arranged between the water outlet of the reverse osmosis membrane filter element and the water inlet of the second filter element, and the first one-way valve is communicated from the water outlet of the reverse osmosis membrane filter element to the water inlet of the second filter element in a one-way mode; and the second one-way valve is arranged between the water outlet of the first filtering element and the water inlet of the reverse osmosis membrane filter element, and the second one-way valve is in one-way communication with the water outlet of the first filtering element to the water inlet of the reverse osmosis membrane filter element.
Furthermore, the water outlet fluid of the front composite filter element is communicated with the water inlet of the reverse osmosis membrane filter element, and a water pump and a first water inlet electromagnetic valve are arranged between the water outlet of the front composite filter element and the water inlet of the reverse osmosis membrane filter element.
Furthermore, a water pump and a second water inlet electromagnetic valve are arranged between the water outlet of the front composite filter element and the water inlet of the first filter element.
Furthermore, a high-voltage switch and a TDS sensor are arranged between the water outlet of the second filter element and the pure water outlet.
Compared with the prior art, the utility model discloses an advantage is with positive effect:
the utility model discloses an aspect can guarantee to wash the independence in water route and rearmounted water route, and on the other hand has kept the holistic miniaturization and the integration of water purifier when increasing to wash the filter core, reduces the whole volume of water purifier.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when read in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of a first embodiment of a post-filter element assembly of a water purifier according to the present invention;
FIG. 2 is a perspective view of FIG. 1;
FIG. 3 is a schematic view of the internal structure of a second embodiment of the post-filter element assembly of the water purifier according to the present invention;
fig. 4 is a schematic view of a water path connection of an embodiment of the water purifier of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments.
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "length," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like, which characterize the positional structure, are based upon the orientations and positional relationships illustrated in the figures and are intended merely to facilitate the description of the invention, and to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "disposed," and "connected" are to be construed broadly and can include, for example, fixed or removable connections or integral connections; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations
Referring to fig. 1 and 2, a post-filter assembly of a water purifier is disclosed, which aims to solve the problem of high TDS of the first cup of water and avoid the increase of the equipment volume of the water purifier. The post-filter assembly 1 of the water purifier mainly comprises a first filter element 10, a sleeve 12, a second filter element 14 and the like. The first filter element 10 and the second filter element 14 are of an integrated construction and are of independent water circuit basic design. Specifically, the first filter element 10 is provided therein with a water collecting pipe 11. The water collecting pipe 11 is further provided with a sleeve 12, and the sleeve 12 divides the water collecting pipe 11 into an inner space and an outer space which are independent physical spaces. A second filter element 14 is further provided in the sleeve 12, and a center tube 13 is provided in the second filter element 14. The first filter element 10, the sleeve 12, the second filter element 14 and the central tube 13 are preferably of concentric design. In the case of the first filter element 10, water to be treated by the first filter element 10 flows in from one end of the first filter element 10, and flows out from the header pipe 11 after passing through the first filter element 10. Due to the separation action of the sleeve 12, the effluent of the first filter element 10 flows out from the water flow channel between the inner wall of the water collecting tube 11 and the outer wall of the sleeve 12. In the case of the second filter element 14, water to be treated by the second filter element 14 flows in from one end of the second filter element 14, and flows out from the central tube 13 after passing through the second filter element 14. The water path of the second filter element 14 is completely independent of the water path of the first filter element 10 due to the separation action of the sleeve 12. One of the first filter element water outlet 17 and the second filter element water outlet 20 is fluidly connected with the water inlet of the reverse osmosis membrane filter element, and the other one is fluidly connected with the water outlet end, namely one of the first filter element 10 and the second filter element 14 can be used for producing purified water for flushing the reverse osmosis membrane filter element, and the other one is used as a post-filter element between the reverse osmosis membrane filter element and the water outlet end for improving the taste of the outlet water. Adopt this kind of design, can guarantee to wash the independence in water route and the rearmounted water route on the one hand, on the other hand has kept the holistic miniaturization and the integration of water purifier when increasing to wash the filter core, reduces the whole volume of water purifier.
In a preferred embodiment, the first filter element 10 is a washed reverse osmosis membrane and the second filter element 14 is a carbon filter element. For the reverse osmosis membrane washing, raw water flows in from one end of the reverse osmosis membrane washing, and flows out from the central water collecting pipe 11 after flowing through the reverse osmosis membrane washing. Due to the separation function of the sleeve 12, namely, the water flows out from the water flow channel between the inner wall of the water collecting pipe 11 and the outer wall of the sleeve 12, the water is further guided to flow to the reverse osmosis membrane, and the reverse osmosis membrane is washed. The second filter element 14, i.e. the carbon filter element, is arranged downstream of the reverse osmosis membrane filter element, and the outlet water of the reverse osmosis membrane filter element flows in from one end of the carbon filter element positioned inside the water collecting pipe 11, flows out from the central pipe 13 in the center after flowing through the carbon filter element, and is further guided to flow to the outlet end for the user to use.
In view of the overall size of the water purifier rear filter element assembly 1, it is preferable that the housing 15 is concentrically sleeved with the first filter element 10, the sleeve 12, and the second filter element 14 in the housing 15. One end of the housing 15 is provided with a first filter element inlet 16, a first filter element outlet 17, a first filter element waste outlet 18, a second filter element inlet 19 and a second filter element outlet 20. For the first filter element 10, i.e., the flushed reverse osmosis membrane, raw water flows into one end of the flushed reverse osmosis membrane from the first filter element water inlet 16, flows through the flushed reverse osmosis membrane to the first filter element water outlet 17 through the water flow channel between the inner wall of the water collection pipe 11 and the outer wall of the sleeve 12, and flows out of the first filter element water outlet 17, and waste water (concentrated water) is discharged from the first filter element waste water outlet 18. For the second filter element 14, namely the carbon filter element, pure water output by the reverse osmosis membrane filter element flows into the carbon filter element from the second filter element water inlet 19, flows to the second filter element water outlet 20 from the central tube 13 after flowing through the carbon filter element, and flows out from the second filter element water outlet 20, so that the effect of improving the outlet water taste of the post-filter element is realized. The first filter element water inlet 16, the first filter element water outlet 17 and the first filter element waste water outlet 18 are evenly distributed, and the second filter element water inlet 19 and the second filter element water outlet 20 are located on the inner side. Five water route ports all set up at casing 15 with the end, do benefit to the installation in water route, avoid redundant pipeline, further can ensure the miniaturized design of water purifier.
In another alternative embodiment, as shown in fig. 3, the first filter element 21 may be a carbon filter element and the second filter element 25 may be a flushed reverse osmosis membrane. The first filter element 21 and the second filter element 25 are also provided in the housing 26, and with this design, for washing the reverse osmosis membrane, raw water flows in from the water flow path between the inner wall of the water collecting pipe 22 and the outer wall of the sleeve 23, and flows out from the center pipe 24, and is further guided to flow to the reverse osmosis membrane, and the reverse osmosis membrane is washed. The effluent of the reverse osmosis membrane filter element flows in from one end of the carbon filter element, flows out from the central water collecting pipe 22 after flowing through the carbon filter element, namely flows out from a water flow channel between the inner wall of the water collecting pipe 22 and the outer wall of the sleeve 23 after being separated by the sleeve 23, and is further guided to flow to an effluent terminal for users to use.
As shown in fig. 4, another aspect of the present invention provides a water purifier. The main body filtering equipment of the water purifier is a reverse osmosis membrane filter element 27, and a water purifier rear filter element component 1 is also arranged at the same time. As shown in fig. 1 and 3, the post-filter assembly 1 of the water purifier mainly includes a first filter element, a sleeve, a second filter element, and the like. The first filter element and the second filter element adopt an integrated structure and independent water path basic design. Specifically, a water collection pipe is provided in the first filter element. The water collecting pipe is further provided with a sleeve, and the sleeve divides the water collecting pipe into an inner physical space and an outer physical space. A second filter element is further disposed in the sleeve, with a center tube disposed therein. The first filter element, the sleeve, the second filter element and the central tube are preferably of a concentric design. For the first filter element, water to be treated by the first filter element flows in from one end of the first filter element, and flows out from the water collecting pipe after flowing through the first filter element. Due to the separation effect of the sleeve, the water outlet of the first filter element flows out from the water flow channel between the inner wall of the water collecting pipe and the outer wall of the sleeve. For the second filter element, the water to be treated by the second filter element flows in from one end of the second filter element, flows through the second filter element and then flows out from the central tube. Due to the separation effect of the sleeve, the water path of the second filter element is completely independent from the water path of the first filter element. One of the first filter element outlet 17 and the second filter element outlet 20 is fluidly connected to the inlet 28 of the reverse osmosis membrane cartridge 27, and the other is fluidly connected to the outlet, i.e., one of the first filter element and the second filter element can be used as a clean water for flushing the reverse osmosis membrane cartridge 27, and the other is used as a post-cartridge between the reverse osmosis membrane cartridge 27 and the outlet end for improving the taste of the outlet water. Adopt this kind of design, can guarantee to wash the independence in water route and the rearmounted water route on the one hand, on the other hand has kept the holistic miniaturization and the integration of water purifier when increasing to wash the filter core, reduces the whole volume of water purifier.
In addition to the reverse osmosis membrane cartridge 27 and the post-filter cartridge assembly 1, a pre-composite filter cartridge 33 is provided in the water purifier. Take the first filter element as a flushing reverse osmosis membrane and the second filter element as a carbon filter element as an example. The pre-composite filter element 33 is fluidly connected to the first filter element inlet 16. The first filter element water outlet 17 is in fluid connection with the water inlet 28 of the reverse osmosis membrane filter element 27, the first filter element waste water outlet 18 is selectively connected with a concentrated water outlet and used as waste water to be discharged, or the first filter element waste water outlet is in fluid connection with the water outlet of the front composite filter element 33, and the water flow utilization rate is improved through backflow. When the first filter element waste water inlet 18 is fluidly connected to the water outlet of the pre-composite filter element 33, a waste water ratio 39 is preferably provided in the water path therebetween so that a portion of the waste water can be returned and a portion can be discharged. The concentrated water branch is provided with a waste water electromagnetic valve. The waste water electromagnetic valve can be matched with the waste water ratio 39 for use, and the corresponding function of concentrated water discharge or waste water backflow is realized. The waste water outlet 30 of the reverse osmosis membrane filter element 27 is also connected with a concentrated water branch through a one-way valve. The water outlet 29 of the reverse osmosis membrane cartridge 27 is fluidly connected to the second filter element water inlet 19 and the second filter element water outlet 20 is fluidly connected to the pure water outlet to provide potable pure water to a water terminal.
In terms of the design of the water path, a first check valve 31 is further provided. The first check valve 31 is arranged between the water outlet 29 of the reverse osmosis membrane filter element 27 and the water inlet 19 of the second filter element, and the first check valve 31 is communicated in a single direction from the water outlet 29 of the reverse osmosis membrane filter element 27 to the water inlet 19 of the second filter element. And a second one-way valve 32, wherein the second one-way valve 32 is communicated with the water inlet 28 of the reverse osmosis membrane filter element 27 from the water outlet 17 of the first filter element in a one-way mode. The water outlet of the preposed composite filter element 33 is communicated with the water inlet 28 of the reverse osmosis membrane filter element 27, and a water pump 34 and a first water inlet electromagnetic valve 36 are arranged between the water outlet of the preposed composite filter element 33 and the water inlet 28 of the reverse osmosis membrane filter element 27. A water pump 34 and a second water inlet electromagnetic valve 35 are arranged between the water outlet of the preposed composite filter element 33 and the water inlet 16 of the first filter element. A high-voltage switch 40 and a TDS sensor 41 are also arranged between the second filter element water outlet 20 and the pure water outlet.
Preferably, a domestic water branch can be arranged. The water inlet of the domestic water branch is fluidly connected with the water outlet of the front composite filter element 33, namely, a part of the water outlet of the front composite filter element 33 is led out to be used as common domestic water. A TDS probe 42 and a high voltage switch 43 are also preferably provided in the domestic water branch.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or that equivalents may be substituted for elements thereof; such modifications and substitutions do not depart from the spirit and scope of the present invention, which is claimed.
Claims (10)
1. A post-positioned filter element component of a water purifier, which is characterized in that,
the method comprises the following steps:
a first filter element having a header disposed therein;
a sleeve disposed in the header;
a second filter element disposed in the sleeve; and
a center tube disposed in the second filter element;
one of the first filter element water outlet and the second filter element water outlet is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the other one is in fluid connection with the water outlet terminal.
2. The water purifier post-filter element assembly according to claim 1,
the first filter element is a washing reverse osmosis membrane, and the second filter element is a carbon filter element.
3. The water purifier post-filter element assembly according to claim 2,
further comprising:
a housing in which the first filter element is disposed;
a first filter element water inlet, a first filter element water outlet, a first filter element waste water outlet, a second filter element water inlet and a second filter element water outlet are formed in one end of the shell; the water outlet of the second filter element is communicated with the central pipe.
4. The water purifier post-filter element assembly according to claim 1,
the first filter element is a carbon filter element, and the second filter element is a flushing reverse osmosis membrane.
5. A water purifier comprising a reverse osmosis membrane cartridge, further comprising a water purifier post cartridge assembly according to any one of claims 1 to 4.
6. The water purifier according to claim 5, further comprising:
a pre-compound filter element fluidly connected to the first filter element water inlet;
wherein, the water outlet of the first filter element is in fluid connection with the water inlet of the reverse osmosis membrane filter element, and the wastewater outlet of the first filter element is in fluid connection with the concentrated water outlet or the water outlet of the preposed composite filter element; the water outlet of the reverse osmosis membrane filter element is in fluid connection with the water inlet of the second filter element, and the water outlet of the second filter element is in fluid connection with the pure water outlet.
7. The water purifier according to claim 6, further comprising:
the first one-way valve is arranged between the water outlet of the reverse osmosis membrane filter element and the water inlet of the second filter element, and the first one-way valve is communicated from the water outlet of the reverse osmosis membrane filter element to the water inlet of the second filter element in a one-way mode; and
and the second one-way valve is arranged between the water outlet of the first filtering element and the water inlet of the reverse osmosis membrane filter element, and the second one-way valve is in one-way communication with the water outlet of the first filtering element to the water inlet of the reverse osmosis membrane filter element.
8. The water purifier according to claim 7,
the water outlet fluid of the front composite filter element is communicated with the water inlet of the reverse osmosis membrane filter element, and a water pump and a first water inlet electromagnetic valve are arranged between the water outlet of the front composite filter element and the water inlet of the reverse osmosis membrane filter element.
9. The water purifier according to claim 8,
and a water pump and a second water inlet electromagnetic valve are arranged between the water outlet of the front composite filter element and the water inlet of the first filter element.
10. The water purifier according to claim 9,
and a high-voltage switch and a TDS sensor are also arranged between the water outlet of the second filter element and the pure water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022833801.XU CN214693539U (en) | 2020-12-01 | 2020-12-01 | Rearmounted filter element subassembly of water purifier and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022833801.XU CN214693539U (en) | 2020-12-01 | 2020-12-01 | Rearmounted filter element subassembly of water purifier and water purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214693539U true CN214693539U (en) | 2021-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022833801.XU Active CN214693539U (en) | 2020-12-01 | 2020-12-01 | Rearmounted filter element subassembly of water purifier and water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214693539U (en) |
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2020
- 2020-12-01 CN CN202022833801.XU patent/CN214693539U/en active Active
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