CN114074980A - Water purifier filter element and water purifier - Google Patents
Water purifier filter element and water purifier Download PDFInfo
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- CN114074980A CN114074980A CN202010809427.1A CN202010809427A CN114074980A CN 114074980 A CN114074980 A CN 114074980A CN 202010809427 A CN202010809427 A CN 202010809427A CN 114074980 A CN114074980 A CN 114074980A
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- exchange membrane
- electrode
- water purifier
- filter element
- water flow
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 146
- 239000012528 membrane Substances 0.000 claims abstract description 115
- 239000003011 anion exchange membrane Substances 0.000 claims abstract description 34
- 238000005341 cation exchange Methods 0.000 claims abstract description 34
- 238000004804 winding Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims description 8
- 239000003292 glue Substances 0.000 claims description 5
- -1 hydrogen ions Chemical class 0.000 description 17
- 229910052739 hydrogen Inorganic materials 0.000 description 9
- 239000001257 hydrogen Substances 0.000 description 9
- 150000001450 anions Chemical class 0.000 description 7
- 150000001768 cations Chemical class 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000005684 electric field Effects 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 150000003384 small molecules Chemical class 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010612 desalination reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 2
- HTXDPTMKBJXEOW-UHFFFAOYSA-N dioxoiridium Chemical group O=[Ir]=O HTXDPTMKBJXEOW-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910000457 iridium oxide Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000001471 micro-filtration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 239000002384 drinking water standard Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006254 polymer film Polymers 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 1
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
Abstract
The invention discloses a filter element of a water purifier, which comprises a shell and a filter body, wherein the shell is provided with a first water flow connector and a second water flow connector; the filter body comprises an exchange membrane, the exchange membrane is accommodated in the shell in a winding mode, a first cavity is formed by the inner wall of the shell and part of the exchange membrane, the second water flow interface is connected with the first cavity, a second cavity is formed by the center of the exchange membrane after winding, and the first water flow interface is connected with the second cavity; the exchange membrane is formed by sequentially stacking n layers of cation exchange membranes and n layers of anion exchange membranes, wherein n is more than or equal to 18 and is more than or equal to 2.
Description
Technical Field
The invention relates to the technical field of water purification, in particular to a water purifier filter element and a water purifier.
Background
Water is a source of life, and the problem of healthy drinking water is more and more emphasized along with the improvement of living standard of people. A water purifier/water filter is an important water purifying apparatus that has been developed in recent years to be widely used.
The filter element structure of the existing water purifier is mostly the superposition of flat-plate single-effect filter element membranes or the superposition of flat-plate multi-effect filter element membranes, but the flat-plate filter element structure has larger size, particularly realizes the filtration of large area, and the process is more complex.
Disclosure of Invention
The invention provides a filter element of a water purifier and the water purifier, wherein a filter element structure is changed from a flat plate type filter element to a roll type filter element, so that the area of an exchange membrane in unit volume can be increased, and the production process of the filter element structure can be simplified.
According to a first aspect of the present invention, there is provided a filter cartridge for a water purifier, comprising:
the shell is provided with a first water flow interface and a second water flow interface;
the filter body comprises an exchange membrane, the exchange membrane is accommodated in the shell in a winding mode, a first cavity is formed by the inner wall of the shell and part of the exchange membrane, the second water flow interface is connected with the first cavity, a second cavity is formed by the center of the exchange membrane after winding, and the first water flow interface is connected with the second cavity;
the exchange membrane is formed by sequentially stacking n layers of cation exchange membranes and n layers of anion exchange membranes, wherein n is more than or equal to 18 and is more than or equal to 2.
In the water purifier filter element of the embodiment of the invention, the water purifier filter element is provided with a first electrode and a second electrode which are electrically connected with a positive electrode and a negative electrode of a direct current power supply, and the first electrode and the second electrode are respectively arranged on the inner side and the outer side of the exchange membrane.
In the filter element of the water purifier of the embodiment of the invention, the first electrode is arranged in the second chamber and is electrically connected with the positive electrode of the direct current power supply, and the second electrode is arranged on the first chamber and is connected with the negative electrode of the direct current power supply; or
The first electrode is arranged in the second chamber and is electrically connected with the negative electrode of the direct current power supply, and the second electrode is arranged on the first chamber and is connected with the positive electrode of the direct current power supply.
In the water purifier cartridge according to the embodiment of the invention, the first electrode is disposed opposite to the anion exchange membrane, and the second electrode is disposed opposite to the cation exchange membrane; or
The first electrode is disposed opposite the cation exchange membrane, and the second electrode is disposed opposite the anion exchange membrane.
In the water purifier filter element of the invention embodiment, each layer of the cation exchange membrane is arranged opposite to the adjacent anion exchange membrane and forms a water flow channel.
In the water purifier filter element according to the embodiment of the invention, the gap of the water flow passage is 10 to 500 μm.
In the water purifier filter element according to the embodiment of the invention, the outer side of the cation exchange membrane or the anion exchange membrane is provided with a protrusion, so that the cation exchange membrane and the anion exchange membrane can form the water flow passage when the exchange membrane is wound on the outer side of the central tube.
In the filter element of the water purifier of the embodiment of the invention, the filter body further comprises a flow guide cloth, and the flow guide cloth is arranged in the water flow channel formed by the cation exchange membrane and the anion exchange membrane.
In the water purifier filter element according to the embodiment of the invention, the water purifier filter element further includes a center tube, and the exchange membrane is wound on the outer side of the center tube.
In the filter element of the water purifier of the embodiment of the invention, the filter body further comprises a waterproof glue layer, and the waterproof glue layer is arranged at two ends of the cation exchange membrane and the anion exchange membrane which are wound.
In the water purifier filter element according to the embodiment of the invention, the filter body has a cylindrical structure.
According to a second aspect of the present invention, there is also provided a water purifier comprising a body and the above-mentioned water purifier filter element, the water purifier filter element being housed inside the body.
The technical scheme provided by the embodiment of the application can have the following beneficial effects: the application designs a water purifier filter core and water purifier, because exchange membrane is in the casing with the mode holding of convoluteing, not only can improve the area of exchange membrane in the unit volume like this, but also can the simplification production technology of filter core structure.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a water purifier according to an embodiment of the present application;
fig. 2 is an exploded schematic view of the water purifier of fig. 1;
fig. 3 is a schematic sectional view of the water purifier in fig. 1;
FIG. 4 is an exploded schematic view of the water purifier cartridge of FIG. 1;
FIG. 5 is a schematic view of a filter body of FIG. 1;
FIG. 6 is another schematic structural view of the filter body of FIG. 1;
FIG. 7 is another schematic structural view of the filter body of FIG. 1;
FIG. 8 is another schematic structural view of the filter body of FIG. 1;
fig. 9 is another schematic view of the filter body of fig. 1.
Description of reference numerals:
100. a filter element of the water purifier; 101. a first chamber; 102. a second chamber; 200. a body;
10. a housing; 11. a first water flow interface; 12. a second water flow interface;
20. a filter body; 21. an exchange membrane; 211. an anion exchange membrane; 212. a cation exchange membrane; 22. a first electrode; 23. a second electrode; 24. a first physical interception layer; 25. a second physical interception layer.
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 some, not all, embodiments of the present invention. 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.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
The filter element structure of the existing water purifier is mostly the superposition of flat-plate single-effect filter element membranes or the superposition of flat-plate multi-effect filter element membranes, but the flat-plate filter element structure has larger size, particularly realizes the filtration of large area, and the process is more complex.
The filter element of the water purifier is mainly used in the water purifier, and can filter water independently or in cooperation with other parts of the water purifier, so that the water quality is purified, and the filtered water meets the preset requirements, such as the drinking water standard.
As shown in fig. 1 to 9, according to a first aspect of the present application, there is provided a filter cartridge 100 for a water purifier, comprising a housing 10 and a filter 20, wherein the housing 10 is provided with a first water flow connector 11 and a second water flow connector 12, and the filter 20 is accommodated in the housing 10. In the present embodiment, the filter body 20 includes an exchange membrane 21 and a central tube, the exchange membrane 21 is mounted on the outer side of the central tube in a winding manner, so that the inner wall of the casing 10 and a part of the exchange membrane 21 can form a first chamber 101, the exchange membrane 21 is wound, and then the center or the central tube itself can form a second chamber 102, the second water flow port 12 is connected with the first chamber 101, and the first water flow port 11 is connected with the second chamber 102.
After the technical scheme is adopted, the exchange membrane is arranged on the outer side of the central tube in a winding mode, so that the area of the exchange membrane in unit volume can be increased, and the production process of the filter element structure can be simplified.
It should be noted that the central tube may be a physically existing element, or the central tube may not be a physically existing element, and is merely a virtual concept of winding the exchange membrane 21 around the center.
In an alternative embodiment, a physical interception layer is disposed in the first chamber 101 and/or the second chamber 102, so that pure water obtained by desalination through the exchange membrane 21 can enter the first water flow interface 11 and be discharged from the first water flow interface 11 after passing through the physical interception layer, or pure water obtained by desalination through the exchange membrane 21 can enter the second water flow interface 12 and be discharged from the second water flow interface 12 after passing through the physical interception layer.
Illustratively, as shown in fig. 3 and 5, the physical interception layer comprises a first physical interception layer 24, the first physical interception layer 24 being arranged outside the exchange membrane 21 and in the first chamber 101. When water flow enters the shell 10 from the second water flow port 12 and is discharged from the first water flow port 11, the water flow firstly carries out physical interception of small particles and adsorption removal of organic matters of small molecules through the second physical interception layer 25, and then the water flow flows into the exchange membrane 21 from the outer side of the exchange membrane 21. Or the water flow enters the shell 10 from the first water flow interface 11 and is discharged from the second water flow interface 12, the water flow firstly flows into the exchange membrane 21 from the outer side of the exchange membrane 21, and then flows into the second water flow interface 12 from the first physical interception layer 24 in the first chamber 101, so that the first physical interception layer 24 can physically intercept small particles in the first chamber 101 and adsorb and remove organic matters of small molecules.
Illustratively, as shown in fig. 3 and 6, the physical interception layer includes a second physical interception layer 25, the second physical interception layer 25 being disposed in the second chamber 102. When water flow enters the shell 10 from the second water flow port 12 and is discharged from the first water flow port 11, the first water flow port 11 flows into the exchange membrane 21 from the outer side of the exchange membrane 21, and then flows into the first water flow port 11 from the second physical interception layer 25 in the second chamber 102, so that the second physical interception layer 25 can physically intercept small particles in the second chamber 102 and adsorb and remove organic substances of small molecules. Or the water flow enters the shell 10 from the first water flow port 11 and is discharged from the second water flow port 12, the water flow firstly carries out physical interception of small particles and adsorption removal of organic matters of small molecules through the second physical interception layer 25, and then is discharged from the second water flow port 12 through the exchange membrane 21.
In an alternative embodiment, the physical barrier layer comprises one of pp cotton, a microfiltration membrane, an ultrafiltration membrane, a carbon rod, carbon fiber, or carbon cloth.
Specifically, the first physical interception layer 24 and the second physical interception layer 25 are configured as one of pp cotton, a microfiltration membrane, an ultrafiltration membrane, a carbon rod, carbon fiber or carbon cloth, so as to ensure a water purification effect.
In an alternative embodiment, as shown in fig. 3 to 9, the water purifier filter element is provided with a first electrode 22 and a second electrode 23 electrically connected to the positive and negative electrodes of the dc power supply, wherein the first electrode 22 and the second electrode 23 are respectively disposed on the inner and outer sides of the exchange membrane 21, so that the water flowing from the first chamber 101 to the second chamber 102 can be desalted under the action of the electric field, or the water flowing from the second chamber 102 to the first chamber 101 can be desalted under the action of the electric field.
In an alternative embodiment, the water purifier filter element further comprises a central tube, the exchange membrane 21 is wound on the outer side of the central tube, the first electrode 22 can be arranged on the outer side of the central tube, or the first electrode 22 is integrally formed with the central tube, and the second electrode 23 is arranged on the outer side of the exchange membrane 21, wherein the second electrode 23, the first electrode 22 and the wound exchange membrane 21 are concentrically arranged, so that the uniformity of the electric field after the exchange membrane 21 is wound can be ensured.
In an alternative embodiment, the first electrode 22 is a first electrode made of a titanium alloy material; and/or the second electrode 22 is a second electrode made of a titanium alloy material.
In an alternative embodiment, the first electrode 22 and/or the second electrode 23 are coated with a catalytic coating.
In an alternative embodiment, the catalytic coating is comprised of a noble metal oxide and a non-noble metal oxide; or the catalytic coating comprises a platinum plating, a platinum coating, or a platinum-containing tin oxide layer.
In an alternative embodiment, the noble metal oxide is iridium oxide or a mixture of iridium oxide and ruthenium oxide to ensure a useful life of the first electrode 22 and/or the second electrode 23.
In an alternative embodiment, the first electrode 22 and/or the second electrode 23 have an outer diameter of 0.1cm to 10 cm.
In an alternative embodiment, the wall thickness of the first electrode 22 and/or the second electrode 23 is between 0.01cm and 1 cm.
In an alternative embodiment, the first electrode 22 is filled with a plastic material to achieve hermeticity inside the first electrode 22.
In an alternative embodiment, the first electrode 22 is provided with a lumen, so that raw water can enter the first chamber 101 from the second chamber 102 through the lumen and then be discharged.
In an alternative embodiment, the exchange membrane 21 is a bipolar membrane, which is composed of a polymer film with fixed charges of opposite polarities, and includes an anion exchange membrane, a cation exchange membrane and an intermediate layer, the intermediate layer is disposed between the two layers of membranes, and under the action of an electric field, water molecules are dissociated into hydrogen ions and hydroxide ions in the intermediate layer of the bipolar membrane, wherein the hydrogen ions are in migration motion toward or away from the anion exchange membrane, and the hydroxide ions are in migration motion toward or away from the cation exchange membrane.
When the filter element of the water purifier is desalted through the bipolar membrane, the cation exchange membrane of the bipolar membrane faces the second chamber 102, the anion exchange membrane of the bipolar membrane faces the first chamber 101, the first electrode 22 is positioned in the second chamber 102 and is electrically connected with the positive electrode of the direct-current power supply, and the second electrode 23 is positioned in the first chamber 101 and is electrically connected with the negative electrode of the direct-current power supply, so that the water flow is desalted in a flow channel formed between the cation exchange membrane and the anion exchange membrane.
For example, the anions in the water flow move towards the first electrode 22 to replace hydroxide ions in the anion exchange membrane, which enter the flow channel; meanwhile, the cations in the raw water move towards the second electrode 23 to replace the hydrogen ions in the cation exchange membrane, and the hydrogen ions enter the flow channel, wherein the hydrogen ions and the hydroxyl ions are neutralized in the flow channel to generate water, so that the salt content in the water flow is removed to generate pure water, and the pure water is discharged from the second chamber 102.
Wherein, after desalination by using the bipolar membrane, the first electrode 22 and the second electrode 23 need to be subjected to reverse regeneration to release hydrogen ions and hydroxyl ions adsorbed on the bipolar membrane.
For example, the first electrode 22 is electrically connected to a negative electrode of a direct current power supply, the second electrode 23 is electrically connected to a positive electrode of the direct current power supply, a cation membrane and an anion membrane of the bipolar membrane generate hydrogen ions and hydroxide ions under an electric field, cations inside the cation membrane of the bipolar membrane are replaced by the hydrogen ions and move towards the first electrode 22, anions in the anion membrane of the bipolar membrane are replaced by the hydroxide ions and move towards the second electrode 23, and the cations and the anions enter a flow channel, so that a regeneration process is realized, wherein the cations can be Na +, and the anions can be Cl-, but not limited thereto.
In an alternative embodiment, the second electrode 23 is located in the second chamber 102 and electrically connected to the negative electrode of the dc power source, and the first electrode 22 is located in the first chamber 101 and electrically connected to the positive electrode of the dc power source, wherein the first electrode 22 and the second electrode 23 are made of different materials because the first electrode 22 and the positive electrode of the dc power source are normally connected and the second electrode 23 and the negative electrode of the dc power source are normally connected.
In an alternative embodiment, the exchange membrane 21 comprises a cation exchange membrane 212 and an anion exchange membrane 211, wherein the inner side of the cation exchange membrane 212 is attached to the inner side of the anion exchange membrane 211, and the outer side of the cation exchange membrane 212 is opposite to the outer side of the anion exchange membrane 211 and forms a water flow channel, so that the hydrogen ions and the hydroxyl ions are neutralized in the water flow channel to generate water, or the cations and the anions enter the flow channel to realize a regeneration process.
In an alternative embodiment, the exchange membrane 21 is formed by stacking n layers of cation exchange membranes 212 and n layers of anion exchange membranes 211 in sequence, wherein 18 is greater than or equal to n and greater than or equal to 2, so that not only can the voltage required by the exchange membrane 21 during operation be prevented from being too large, but also the overall volume of the exchange membrane 21 after winding is ensured.
In an alternative embodiment, each layer of cation exchange membrane 212 is disposed opposite to the adjacent anion exchange membrane 211 and forms a water flow channel, so as to ensure that water flow can flow through the water flow channel formed by each layer of cation exchange membrane 212 and the anion exchange membrane 211, and ensure the speed of purified water.
In an alternative embodiment, the first electrode 22 is disposed outside the cation exchange membrane 212 and the second electrode 23 is disposed outside the anion exchange membrane 211.
The first electrode 22 may be disposed outside the anion exchange membrane 211, and the second electrode 23 may be disposed outside the cation exchange membrane 212, which is not limited in the present application.
In an alternative embodiment, the first electrode 22 is wound on the outside of the central tube, and the second electrode 23 is wound on the outside of the exchange membrane 21, so that the structure is simple and practical.
In an alternative embodiment, the gap of the water flow channel is 10 to 500 μm, which not only ensures that the water flow can pass through the water flow channel, but also ensures the volume of the membrane 21 after winding, and can maximize the function of the membrane 21.
In an alternative embodiment, the outer side of the cation exchange membrane 212 or the anion exchange membrane 211 is provided with a protrusion, so that when the exchange membrane 21 is wound on the outer side of the central tube, the cation exchange membrane 212 and the anion exchange membrane 211 can form a water flow channel for water flow to pass through.
In an alternative embodiment, the filter body further comprises a flow guide cloth, wherein the flow guide cloth is arranged in a water flow channel formed by the cation exchange membrane 212 and the anion exchange membrane 211 so as to ensure that water can pass through the water flow channel under the flow guide effect of the flow guide cloth.
In an optional embodiment, the filter body further includes a waterproof glue layer, and the waterproof glue layer is disposed at two ends of the exchange membrane 21 wound around the central tube to prevent the exchange membrane 21 from short-circuiting.
According to a second aspect of the present application, there is also provided a water purifier including a body 200 and the water purifier filter cartridge 100 described above, wherein the water purifier filter cartridge 100 is housed inside the body 200.
In the description of the present application, it is to be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. Either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
In the description herein, references to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: numerous changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. A water purifier filter element, comprising:
the shell is provided with a first water flow interface and a second water flow interface;
the filter body comprises an exchange membrane, the exchange membrane is accommodated in the shell in a winding mode, a first cavity is formed by the inner wall of the shell and part of the exchange membrane, the second water flow interface is connected with the first cavity, a second cavity is formed by the center of the exchange membrane after winding, and the first water flow interface is connected with the second cavity;
the exchange membrane is formed by sequentially stacking n layers of cation exchange membranes and n layers of anion exchange membranes, wherein n is more than or equal to 18 and is more than or equal to 2.
2. The water purifier filter element according to claim 1, wherein the water purifier filter element is provided with a first electrode and a second electrode electrically connected with a positive electrode and a negative electrode of a direct current power supply, and the first electrode and the second electrode are respectively arranged on the inner side and the outer side of the exchange membrane.
3. The water purifier filter element according to claim 2, wherein said first electrode is disposed within said second chamber and is electrically connected to a positive dc power source, and said second electrode is disposed on said first chamber and is electrically connected to a negative dc power source; or
The first electrode is arranged in the second chamber and is electrically connected with the negative electrode of the direct current power supply, and the second electrode is arranged on the first chamber and is connected with the positive electrode of the direct current power supply.
4. The water purifier cartridge according to claim 2, wherein said first electrode is disposed opposite said anion exchange membrane and said second electrode is disposed opposite said cation exchange membrane; or
The first electrode is disposed opposite the cation exchange membrane, and the second electrode is disposed opposite the anion exchange membrane.
5. The water purifier cartridge according to claim 1, wherein each of said cation exchange membranes is disposed opposite to an adjacent said anion exchange membrane and forms a water flow passage.
6. The water purifier cartridge as recited in claim 5, wherein said water flow passage has a gap of 10 to 500 μm.
7. The water purifier cartridge according to claim 6, wherein the outer side of the cation exchange membrane or the anion exchange membrane is provided with a protrusion so that the cation exchange membrane can form the water flow passage with the anion exchange membrane when the exchange membrane is wound on the outer side of the center tube.
8. The water purifier filter element of claim 5, wherein the filter body further comprises a flow directing cloth disposed in the water flow passage formed by the cation exchange membrane and the anion exchange membrane.
9. The water purifier filter element of claim 1, further comprising a center tube, the exchange membrane being wound around an outside of the center tube.
10. The water purifier filter element according to claim 1, wherein the filter body further comprises a waterproof glue layer disposed at both ends of the cation exchange membrane and the anion exchange membrane which are wound.
11. The water purifier cartridge of claim 1, wherein said filter body is of cylindrical configuration.
12. A water purifier characterized by comprising a body and the water purifier filter element according to any one of claims 1 to 9, the water purifier filter element being housed inside the body.
Priority Applications (1)
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| CN212609725U (en) * | 2020-08-12 | 2021-02-26 | 云米互联科技(广东)有限公司 | Water purifier filter element and water purifier |
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