CN214210073U - Bipolar membrane assembly, bipolar membrane filter core and water purification equipment - Google Patents
Bipolar membrane assembly, bipolar membrane filter core and water purification equipment Download PDFInfo
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- CN214210073U CN214210073U CN202022302119.8U CN202022302119U CN214210073U CN 214210073 U CN214210073 U CN 214210073U CN 202022302119 U CN202022302119 U CN 202022302119U CN 214210073 U CN214210073 U CN 214210073U
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Abstract
The utility model discloses a bipolar membrane subassembly, bipolar membrane filter core and water purification unit, including interval structure and two at least bipolar membranes. The bipolar membranes are stacked; the spacing structure is positioned between the adjacent bipolar membranes. Wherein the spacing structure spaces adjacent bipolar membranes to form a flow channel. The utility model discloses a bipolar membrane subassembly is adjacent through the interval structure interval bipolar membrane for form stable runner between the adjacent bipolar membrane, the runner is difficult to become narrow, and rivers can be stabilized and pass through, improve water purification efficiency and effect.
Description
Technical Field
The utility model relates to a water treatment technical field especially relates to a bipolar membrane subassembly, bipolar membrane filter core and water purification unit.
Background
With the development of science and technology and higher requirements of people on living quality, the water treatment technology provides clean and healthier drinking water for people. At present, the drinking water is generally treated by filtering through various filter elements to obtain drinking water meeting the requirements of people. The commonly used filter element at present comprises a PP cotton filter element, an active carbon filter element, a reverse osmosis filter element and the like.
The bipolar membrane filter element is a novel filter element and is composed of one or more pairs of electrodes and at least one or more bipolar membranes in the middle of the electrodes, and a flow passage is formed between the bipolar membranes for water to pass through. However, due to deformation, extrusion and the like of the bipolar membranes, the flow channel between the bipolar membranes is easy to narrow, and water flow is affected, so that the water purification efficiency and effect are affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a bipolar membrane subassembly, bipolar membrane filter core and water purification unit, the runner is difficult to become narrow, and rivers can be stabilized and pass through, improve water purification efficiency and effect.
The utility model discloses a bipolar membrane component, including interval structure and two at least bipolar membranes. The bipolar membranes are stacked; the spacing structure is positioned between the adjacent bipolar membranes. Wherein the spacing structure spaces adjacent bipolar membranes to form a flow channel.
Optionally, the spacing structure is a net structure sandwiched between the bipolar membranes.
Optionally, the thickness of the mesh structure is D1The length of the flow passage is L1(ii) a Therein, 500D1<L1<3000D1。
Optionally, the spacing structure is a protrusion structure disposed on the bipolar membrane.
Optionally, the height of the protruding structure is D2The length of the flow passage is L2(ii) a It is composed ofIn 500D2<L2<3000D2。
Optionally, the protrusion structure is a dot protrusion or a strip protrusion extending into a long strip shape according to the water flow direction in the flow channel.
Optionally, the bipolar membrane assembly further comprises a hollow tube; one end of the bipolar membrane is connected with the hollow tube and is wound on the hollow tube; and water passing holes are formed in the positions, corresponding to the flow channels, of the hollow pipes.
Optionally, the bipolar membrane assembly comprises a positive electrode and a negative electrode for applying an electric field to the bipolar membrane; the bipolar membrane is disposed between the positive electrode and the negative electrode.
The utility model also discloses a bipolar membrane filter core, including as above bipolar membrane subassembly.
The utility model also discloses a water purification unit, include as above bipolar membrane filter core. The utility model discloses a bipolar membrane subassembly is adjacent through the interval structure interval bipolar membrane for form stable runner between the adjacent bipolar membrane, the runner is difficult to become narrow, and rivers can be stabilized and pass through, improve water purification efficiency and effect.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive faculty.
In the drawings:
FIG. 1 is a schematic diagram of a bipolar membrane assembly according to an embodiment of the present invention without furling;
FIG. 2 is a schematic diagram of a bipolar membrane cartridge according to an embodiment of the present invention for adsorbing ions;
FIG. 3 is a schematic diagram of the regeneration of a bipolar membrane cartridge according to an embodiment of the present invention;
fig. 4 is a schematic view of furling of a bipolar membrane assembly according to an embodiment of the present invention;
FIG. 5 is another schematic view of an embodiment of the bipolar membrane assembly of the present invention deployed;
FIG. 6 is a schematic block diagram of a bipolar membrane cartridge according to an embodiment of the present invention;
fig. 7 is a schematic block diagram of a water purifying apparatus according to an embodiment of the present invention.
Wherein, 1, a water purifying device; 2. a bipolar membrane cartridge; 3. a bipolar membrane module; 4. bipolar membrane; 5. a spacer structure; 51. a network structure; 52. a raised structure; 6. a flow channel; 7. a hollow pipe.
Detailed Description
It is to be understood that the terminology, the specific structural and functional details disclosed herein are for the purpose of describing particular embodiments only, and are representative, but that the present invention may be embodied in many alternate forms and should not be construed as limited to only the embodiments set forth herein.
The invention will be described in detail below with reference to the drawings and alternative embodiments.
As shown in fig. 1, as an embodiment of the present invention, a bipolar membrane module 3 is disclosed, which comprises a spacing structure 5 and at least two bipolar membranes 4. The bipolar membranes 4 are stacked; the spacing structure 5 is located between adjacent bipolar membranes 4. Wherein the spacing structure 5 spaces the adjacent bipolar membranes 4 to form a flow channel 6.
The utility model discloses a bipolar membrane subassembly 3 is adjacent through 5 intervals of interval structure bipolar membrane 4 for form stable runner between the adjacent bipolar membrane 4, the runner is difficult to the narrowing, and rivers can be stabilized and pass through, improve water purification efficiency and effect.
As shown in FIG. 2, the bipolar membrane filter core adopted by the invention is composed of one or more pairs of electrodes and at least one or more bipolar membranes in the middle of the electrodes; each bipolar membrane consists of a cation exchange membrane and an anion exchange membrane which are compounded together, the cation exchange membrane and the anion exchange membrane which form the bipolar membrane form a runner.
In the bipolar membrane filter element, in the desalination process, the anode membrane of the bipolar membrane faces the positive electrode, and raw water is desalinated in a flow channel formed between the two bipolar membranes, as shown in fig. 2. Anions in the raw water such as Cl < - > move towards the positive electrode to replace OH < - > in the anion exchange membrane on the left side, and OH < - > enters the flow channel; meanwhile, cations such as Na + in the raw water move towards the negative electrode direction to replace H + ions in the cation exchange membrane of the bipolar membrane on the right side, and the H + enters the flow channel; h + and OH-are subjected to neutralization reaction in the flow channel to generate water, so that the salt in the raw water is removed, and the pure water flows out from the tail end of the flow channel.
When desalination is carried out for a period of time, the bipolar membrane filter core needs to be subjected to reverse regeneration, and then the bipolar membrane filter core is reversely electrified to release ions in water adsorbed on the bipolar membrane. At this time, as shown in fig. 3, OH "and H + ions are generated in the interface layers of the cation membrane and the anion membrane of the bipolar membrane under the electric field, cations such as Na + inside the cation membrane of the bipolar membrane are replaced by the H + ions and move to the negative electrode, anions such as Cl" inside the anion membrane of the bipolar membrane are replaced by OH "and move to the positive electrode, and Na + and Cl" enter the flow channel, so that the regeneration process of the bipolar membrane filter element is realized.
In a specific application, bipolar membrane assembly 3 can be used by being flatly unfolded or rolled into a cylinder as shown in fig. 4.
Specifically, the spacer structure 5 is a mesh structure 51 sandwiched between the bipolar membranes 4. Reticular structure 51 both can support comprehensively with interval bipolar membrane 4, can make rivers flow on reticular structure 51 again when, because the effect of mesh, rivers are the wave swing when flowing through the mesh, form the torrent and speed descends, reduces rivers to bipolar membrane 4's impact, and the time of extension rivers between bipolar membrane 4 improves the water purification effect.
In particular, the thickness of the mesh-like structure 51 is D1The length of the flow passage 6 isL1(ii) a Therein, 500D1<L1<3000D1. This scheme is guaranteeing that 6 widths of runner are suitable, and when the resistance of water is little, bipolar membrane component 3's whole thickness can not be too big, and required electric field is suitable, and the power consumption is few and safety.
On the other hand, as shown in fig. 5, the spacer structure 5 may also be a projection structure 52 provided on the bipolar membrane 4. The spacer structure 5 is a projection structure 52 provided directly on the bipolar membrane 4, so that the bipolar membrane assembly 3 is compact and simple in overall structure. The protruding structure 52 may be formed integrally with the bipolar membrane 4, or may be mounted on the bipolar membrane 4, and need not be limited in this embodiment.
Specifically, the height of the protruding structure 52 is D2The length of the flow passage 6 is L2(ii) a Therein, 500D2<L2<3000D2. This scheme is guaranteeing that 6 widths of runner are suitable, and when the resistance of water is little, bipolar membrane component 3's whole thickness can not be too big, and required electric field is suitable, and the power consumption is few and safety.
More specifically, the protrusion structure 52 is a point-shaped protrusion, and the resistance of the water flow in the flow channel 6 is small. Of course, the protrusion structure 52 may also be a strip protrusion; the strip-shaped bulges extend into a strip shape according to the water flow direction in the flow channel 6, can well support the bipolar membrane 4 at intervals, and can play a certain role in flow guiding.
On the other hand, the bipolar membrane module 3 further comprises a hollow pipe 7; one end of the bipolar membrane 4 is connected with the hollow tube 7 and is wound on the hollow tube 7; and water passing holes are formed in the positions, corresponding to the flow channels 6, of the hollow pipes 7. FIGS. 1 and 5 are schematic diagrams of a bipolar membrane 4 with one end connected with the hollow tube 7 but not rolled on the hollow tube 7; fig. 4 is a schematic view of the bipolar membrane 4 rolled on the hollow tube 7. The water flow flows into the flow channel 6 from the other end of the bipolar membrane 4, then flows out of the water through holes on the hollow pipe 7 to the hollow space of the hollow pipe 7, and is discharged through the water outlet pipeline for a user to drink.
More specifically, as shown in fig. 1, when the spacer structure 5 is a mesh structure 51, one end of the mesh structure 51 is connected to the hollow tube 7, and is wound around the hollow tube 7 together with the bipolar membrane 4.
Specifically, the bipolar membrane assembly 3 further includes a positive electrode and a negative electrode for applying an electric field to the bipolar membrane 4. The bipolar membrane 4 is disposed between the positive electrode and the negative electrode.
As shown in fig. 6, as another embodiment of the present invention, a bipolar membrane cartridge is disclosed, wherein the bipolar membrane cartridge 2 comprises the bipolar membrane assembly 3 as described above.
As shown in fig. 7, as another embodiment of the present invention, a water purifying apparatus is disclosed, wherein the water purifying apparatus 1 comprises the bipolar membrane cartridge 2 as described above.
The foregoing is a more detailed description of the present invention, taken in conjunction with specific alternative embodiments, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (10)
1. A bipolar membrane assembly, comprising:
at least two bipolar membranes, wherein the bipolar membranes are stacked;
a spacing structure located between adjacent bipolar membranes;
wherein the spacing structure spaces adjacent bipolar membranes to form a flow channel.
2. The bipolar membrane assembly of claim 1, wherein said spacer structure is a mesh structure sandwiched between said bipolar membranes.
3. The bipolar membrane assembly of claim 2, wherein said mesh structure has a thickness D1The length of the flow passage is L1(ii) a Therein, 500D1<L1<3000D1。
4. The bipolar membrane assembly of claim 2, wherein said spacing structure is a raised structure disposed on said bipolar membrane.
5. The bipolar membrane assembly of claim 4, wherein said raised structures have a height D2The length of the flow passage is L2(ii) a Therein, 500D2<L2<3000D2。
6. The bipolar membrane assembly of claim 4, wherein said protrusion structure is a dot-shaped protrusion or a strip-shaped protrusion extending in a direction of water flow in said flow channel.
7. The bipolar membrane assembly of claim 1, wherein said bipolar membrane assembly further comprises a hollow tube; one end of the bipolar membrane is connected with the hollow tube and is wound on the hollow tube; and water passing holes are formed in the positions, corresponding to the flow channels, of the hollow pipes.
8. The bipolar membrane assembly of claim 1, wherein said bipolar membrane assembly comprises a positive electrode and a negative electrode for applying an electric field to said bipolar membrane; the bipolar membrane is disposed between the positive electrode and the negative electrode.
9. A bipolar membrane cartridge comprising a bipolar membrane assembly according to any one of claims 1 to 8.
10. A water purification apparatus, comprising the bipolar membrane cartridge of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022302119.8U CN214210073U (en) | 2020-10-16 | 2020-10-16 | Bipolar membrane assembly, bipolar membrane filter core and water purification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022302119.8U CN214210073U (en) | 2020-10-16 | 2020-10-16 | Bipolar membrane assembly, bipolar membrane filter core and water purification equipment |
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| CN214210073U true CN214210073U (en) | 2021-09-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452824A (en) * | 2022-03-10 | 2022-05-10 | 远大健康科技(天津)有限公司 | Membrane element and preparation method thereof, filter element and water purifier |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114452824A (en) * | 2022-03-10 | 2022-05-10 | 远大健康科技(天津)有限公司 | Membrane element and preparation method thereof, filter element and water purifier |
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