CN214880831U - Electrodialysis membrane stack subassembly and water purification system that has it - Google Patents
Electrodialysis membrane stack subassembly and water purification system that has it Download PDFInfo
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- CN214880831U CN214880831U CN202022990701.8U CN202022990701U CN214880831U CN 214880831 U CN214880831 U CN 214880831U CN 202022990701 U CN202022990701 U CN 202022990701U CN 214880831 U CN214880831 U CN 214880831U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 187
- 239000012528 membrane Substances 0.000 title claims abstract description 109
- 238000000909 electrodialysis Methods 0.000 title claims abstract description 84
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 239000008213 purified water Substances 0.000 claims abstract description 43
- 230000001954 sterilising effect Effects 0.000 claims abstract description 42
- 238000004659 sterilization and disinfection Methods 0.000 claims description 28
- 239000003011 anion exchange membrane Substances 0.000 claims description 18
- 238000005341 cation exchange Methods 0.000 claims description 12
- 241000894006 Bacteria Species 0.000 abstract description 18
- 230000008901 benefit Effects 0.000 abstract description 8
- 238000009395 breeding Methods 0.000 abstract description 7
- 230000001488 breeding effect Effects 0.000 abstract description 7
- 230000001580 bacterial effect Effects 0.000 description 7
- 238000005192 partition Methods 0.000 description 5
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- 230000036541 health Effects 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
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- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses an electrodialysis membrane stack subassembly and water purification system that has it, electrodialysis membrane stack subassembly includes: the electrodialysis membrane stack is provided with a first water inlet, a second water inlet, a purified water outlet and a concentrated water outlet, the first water inlet is communicated with the purified water outlet, and the second water inlet is communicated with the concentrated water outlet; and the sterilizing device is communicated with at least one of the first water inlet and the purified water outlet. According to the utility model discloses electrodialysis membrane stack subassembly has that the water is healthy, be difficult for breeding advantages such as bacterium.
Description
Technical Field
The utility model relates to an electrical apparatus makes technical field, particularly, relates to an electrodialysis membrane stack subassembly and has the water purification system of electrodialysis membrane stack subassembly.
Background
In an electrodialysis type water purification system in the related art, an electrodialysis membrane stack is in a non-working state most of the time, and the membrane stack is soaked in water for a long time and is easy to breed bacteria.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides an electrodialysis membrane stack subassembly, this electrodialysis membrane stack subassembly have with water healthy, be difficult for breeding advantages such as bacterium.
The utility model discloses still provide one kind and have the water purification system of electrodialysis membrane stack subassembly.
To achieve the above object, an embodiment according to a first aspect of the present invention provides an electrodialysis membrane stack assembly, including: the electrodialysis membrane stack is provided with a first water inlet, a second water inlet, a purified water outlet and a concentrated water outlet, the first water inlet is communicated with the purified water outlet, and the second water inlet is communicated with the concentrated water outlet; and the sterilizing device is communicated with at least one of the first water inlet and the purified water outlet.
According to the utility model discloses electrodialysis membrane stack subassembly has that the water is healthy, be difficult for breeding advantages such as bacterium.
In addition, the electrodialysis membrane stack assembly according to the above embodiment of the present invention may have the following additional technical features:
according to an embodiment of the present invention, the electrodialysis membrane stack assembly further comprises: the water inlet pipe is communicated with a water source; the first branch pipe is connected with the water inlet pipe and the first water inlet; and the second branch pipe is connected with the water inlet pipe and the second water inlet.
According to an embodiment of the present invention, the sterilizing device is connected to the water inlet pipe.
According to an embodiment of the present invention, the sterilizing device is connected to the first branch pipe.
According to the utility model discloses an embodiment, electrodialysis membrane stack subassembly still includes the water purification outlet pipe, the water purification goes out the water piping connection and is in on the water purification export, sterilizing equipment connects on the water purification outlet pipe.
According to an embodiment of the present invention, the sterilization device is an ultraviolet sterilization device.
According to an embodiment of the present invention, the electrodialysis membrane stack comprises: the membrane group comprises a cation exchange membrane and an anion exchange membrane which are oppositely arranged; the electrode group comprises a positive electrode plate and a negative electrode plate, the positive electrode plate is arranged on one side of the membrane group, and the negative electrode plate is arranged on the other side of the membrane group; the baffle plate comprises a first grid, a second grid and a third grid, the first grid is arranged between the negative electrode plate and the cation exchange membrane, the second grid is arranged between the cation exchange membrane and the anion exchange membrane, and the third grid is arranged between the anion exchange membrane and the positive electrode plate; the first pressing plate is in press connection with the positive electrode plate, and the second pressing plate is in press connection with the negative electrode plate.
According to the utility model discloses an embodiment, first clamp plate with be equipped with first insulating barrier between the positive electrode plate, the second clamp plate with be equipped with second insulating barrier between the negative electrode plate.
According to the utility model discloses an embodiment, be formed with the intercommunication on the guide plate first water inlet with the first runner and the intercommunication of water purification export the second water inlet with the second runner of concentrated water export.
According to the utility model discloses an embodiment of second aspect provides a water purification system, water purification system includes according to the embodiment of the first aspect the electrodialysis membrane stack subassembly.
According to the utility model discloses water purification system, through utilizing according to the utility model discloses an embodiment of first aspect electrodialysis membrane stack subassembly have that the water is healthy, be difficult for breeding advantages such as bacterium.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of an electrodialysis membrane stack assembly according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of an electrodialysis membrane stack assembly according to another embodiment of the present invention.
Fig. 3 is a schematic structural view of an electrodialysis membrane stack assembly according to another embodiment of the present invention.
Figure 4 is a schematic diagram of the structure of an electrodialysis membrane stack assembly according to an embodiment of the invention.
Figure 5 is an exploded view of an electrodialysis membrane stack assembly according to an embodiment of the invention.
Figure 6 is an exploded view of an electrodialysis membrane stack assembly according to an embodiment of the invention.
Reference numerals: the device comprises an electrodialysis membrane stack component 1, an electrodialysis membrane stack 10, a first water inlet 11, a second water inlet 12, a purified water outlet 13, a concentrated water outlet 14, a cation exchange membrane 151, an anion exchange membrane 152, a positive electrode plate 161, a negative electrode plate 162, a first grid 171, a second grid 172, a third grid 173, a first pressing plate 181, a second pressing plate 182, a first insulating partition 191, a second insulating partition 192, a sterilization device 20, a water inlet pipe 31, a first branch pipe 32, a second branch pipe 33, a purified water outlet pipe 41 and a concentrated water outlet pipe 42.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, 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", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An electrodialysis membrane stack assembly 1 according to an embodiment of the invention is described below with reference to the accompanying drawings.
As shown in fig. 1 to 6, an electrodialysis membrane stack assembly 1 according to an embodiment of the present invention includes an electrodialysis membrane stack 10 and a sterilization device 20.
The electrodialysis membrane stack 10 is provided with a first water inlet 11, a second water inlet 12, a purified water outlet 13 and a concentrated water outlet 14, the first water inlet 11 is communicated with the purified water outlet 13, and the second water inlet 12 is communicated with the concentrated water outlet 14. The sterilizing device 20 is in communication with at least one of the first water inlet 11 and the purified water outlet 13.
According to the utility model discloses electrodialysis membrane stack subassembly 1, through setting up electrodialysis membrane stack 10, electrodialysis membrane stack 10 has higher water recovery rate, easy operation, and the membrane is longe-lived, can move under the high temperature to acid and alkali-resistant ability is very strong, does not need a large amount of preliminary treatments and aftertreatment, can also be convenient for separate multivalent ion.
The inventors of the present application have found through extensive research that bacteria are prone to develop because the electrodialysis membrane stack 10 is relatively closed and out of operation for most of the time.
According to the electrodialysis membrane stack assembly 1 provided by the embodiment of the utility model, the sterilization device 20 is arranged to communicate the sterilization device 20 with at least one of the first water inlet 11 and the purified water outlet 13, so that the purified water of the electrodialysis membrane stack 10 can be sterilized by the sterilization device 20, the bacteria content in the electrodialysis membrane stack 10 is reduced, the bacteria growth in the electrodialysis membrane stack 10 is reduced, and the bacteria content in the purified water is reduced; or the purified water outlet of the electrodialysis membrane stack 10 is sterilized, so that the bacteria content of the purified water outlet of the electrodialysis membrane stack 10 is directly reduced. Compared with an electrodialysis type water purification system in the related technology, the electrodialysis membrane stack 10 can reduce the bacteria content in the purified water outlet water, ensure the quality of the purified water outlet water and ensure the health of water for users.
Therefore, according to the utility model discloses electrodialysis membrane stack subassembly 1 has the advantage such as healthy, the difficult bacterium that breeds of water.
An electrodialysis membrane stack assembly 1 according to an embodiment of the invention is described below with reference to the accompanying drawings.
In some embodiments of the present invention, as shown in fig. 1-6, an electrodialysis membrane stack assembly 1 according to embodiments of the present invention includes an electrodialysis membrane stack 10 and a sterilization device 20.
Specifically, as shown in fig. 1 to 3, the electrodialysis membrane stack 10 further includes a water inlet pipe 31, a first branch pipe 32, and a second branch pipe 33. The inlet pipe 31 is in communication with a water source. The first branch pipe 32 is connected to the inlet pipe 31 and the first inlet port 11. The second branch pipe 33 is connected to the feed pipe 31 and the second inlet 12. Therefore, the water at the water source can be conveniently divided, so that the raw water enters the first water inlet 11 and the second water inlet 12 respectively.
In one embodiment of the present invention, as shown in fig. 2, the sterilization device 20 is connected to the water inlet pipe 31. Can disinfect to the water of water source department like this, reduce the bacterial content who gets into first water inlet 11 and second water inlet 12 to reduce the bacterial content in the electrodialysis membrane stack 10, prevent that the bacterium from breeding in the electrodialysis membrane stack 10, with the bacterial content in the water purification export 13 exhaust water purification, guarantee that the user water is healthy.
In another embodiment of the present invention, as shown in fig. 1, the sterilization device 20 is connected to the first branch pipe 32. Can disinfect to the water that gets into first branch pipe 32 like this, reduce the bacterial content who gets into first water inlet 11 to reduce the bacterial content in water purification water course in the electrodialysis membrane stack 10, prevent that the bacterium from breeding in the water purification water course of electrodialysis membrane stack 10, with the bacterial content in the water purification export 13 exhaust water of reduction, guarantee that the user water is healthy.
In another embodiment of the present invention, as shown in fig. 3, the electrodialysis membrane stack assembly 1 further includes a purified water outlet pipe 41, the purified water outlet pipe 41 is connected to the purified water outlet 13, and the sterilization device 20 is connected to the purified water outlet pipe 41. Thus, the purified water discharged from the electrodialysis membrane stack 10 can be sterilized, the bacteria content in the discharged purified water is reduced, and the water health of a user is ensured.
Specifically, the concentrated water outlet pipe 42 is connected to the concentrated water outlet 14. This facilitates the discharge of the concentrate.
It will be understood by those skilled in the art that the sterilization device 20 may be plural and connected to the water inlet pipe 31, the first branch pipe 32 and the purified water outlet pipe 41. The permutation and combination can be carried out by those skilled in the art according to the actual needs.
For example, the sterilization device 20 may be three and disposed on the water inlet pipe 31, the first branch pipe 32 and the purified water outlet pipe 41, respectively. Or the sterilizing devices 20 may be two and respectively disposed on the purified water outlet pipe 41 and the first branch pipe 32. Or the sterilizing devices 20 may be two and respectively disposed on the water inlet pipe 31 and the purified water outlet pipe 41. Or the sterilizing device 20 may be two and disposed on the inlet tube 31 and the first branch tube 32, respectively.
Alternatively, the sterilization device 20 is an ultraviolet sterilization device. Thus, the water flowing through can be sterilized by the ultraviolet rays, which not only facilitates the sterilization of the water, but also facilitates the arrangement of the sterilizing device 20.
Specifically, when the electrodialysis membrane stack assembly 1 works, the ultraviolet sterilization device is firstly opened, and then the water inlet of the electrodialysis membrane stack assembly 1 is controlled, so that the sterilization of the inlet water is realized.
Fig. 4-6 show an electrodialysis membrane stack assembly 1 according to a specific example of the invention. As shown in fig. 4-6, the electrodialysis membrane stack 10 includes a membrane stack, an electrode assembly, a flow guide, a first press plate 181, and a second press plate 182. The membrane module includes a cation exchange membrane 151 and an anion exchange membrane 152 disposed opposite each other. The electrode group comprises a positive electrode plate 161 and a negative electrode plate 162, wherein the positive electrode plate 161 is arranged on one side of the membrane group, and the negative electrode plate 162 is arranged on the other side of the membrane group. The guide plate includes first graticule mesh 171, second graticule mesh 172 and third graticule mesh 173, and first graticule mesh 171 is located between negative electrode plate 162 and cation exchange membrane 151, and second graticule mesh 172 is located between cation exchange membrane 151 and anion exchange membrane 152, and third graticule mesh 173 is located between anion exchange membrane 152 and positive electrode plate 161. The first presser plate 181 is pressed against the positive electrode plate 161, and the second presser plate 182 is pressed against the negative electrode plate 162. The setup of the electrodialysis membrane stack 10 can be convenient, and the pressing plates are respectively pressed on the sides of the positive electrode plates 161 and the negative electrode plates 162 far away from the membrane group, so that stable pre-pressure is continuously applied to the membrane group, the electrode group and the guide plate, the long-time operation of the electrodialysis membrane stack 10 is ensured, the water leakage risk is reduced, and the reliability of the electrodialysis membrane stack 10 is improved.
Advantageously, as shown in fig. 4-6, a first insulating separator 191 is disposed between the first presser plate 181 and the positive electrode plate 161, and a second insulating separator 192 is disposed between the second presser plate 182 and the negative electrode plate 162. The insulating separator is used for preventing the positive electrode plate 161 or the negative electrode plate 162 from leaking electricity to the outside in the using process, and the positive electrode plate 161 and the negative electrode plate 162 are isolated from the outside through the insulating separator, so that the reliability of the electrodialysis membrane stack 10 is effectively improved.
It will be appreciated by those skilled in the art that the first and second pressure plates 181 and 182 may also be provided as insulating members to achieve an insulating effect. Specifically, the first and second platens 181, 182 may be fiber platens. Epoxy resin carbon fiber pressing plates and glass fiber reinforced nylon pressing plates are preferred. The fiber press plate has lower density and lighter weight.
Specifically, the first and second pressing plates 181 and 182 may be connected by bolts and nuts, and the pressing plates may be facilitated to press the film stack by locking the bolts and nuts.
Specifically, as shown in fig. 5 and 6, the guide plate is formed with a first flow passage communicating the first water inlet 11 and the purified water outlet 13, and a second flow passage communicating the second water inlet 12 and the concentrated water outlet 14. Therefore, the formation of a purified water channel and a concentrated water channel is facilitated, and the purified water and the concentrated water can be smoothly shunted.
Specifically, the cation exchange membrane 151, the anion exchange membrane 152, the positive electrode plate 161, the negative electrode plate 162, the first grid 171, the second grid 172, the third grid 173, the first pressing plate 181, the second pressing plate 182, the first insulating separator 191, and the second insulating separator 192 are all provided with through-thickness through holes, and the first grid 171, the second grid 172, and the third grid 173 are provided with grid flow channels communicating with the through holes.
The dimensions of the cation exchange membrane 151, the anion exchange membrane 152, the positive electrode plate 161, the negative electrode plate 162, the first mesh 171, the second mesh 172, and the third mesh 173 may be the same and smaller than the dimensions of the first presser plate 181, the second presser plate 182, the first insulating separator 191, and the second insulating separator 192.
When the electrodialysis membrane stack 10 works, water enters the electrodialysis membrane stack 10 from the water inlet pipe 31, the first water inlet 11 and the second water inlet 12, and raw water entering the electrodialysis membrane stack after the electrodialysis membrane stack 10 is compressed flows inside the membrane stack through the pore passages and the grid flow passages.
The water of the first water inlet 11 may sequentially pass through the second pressing plate 182, the second insulating partition 192, the first grid 171 and the anion exchange membrane 152 to reach the second grid 172 through the pores. The raw water cannot directly pass through the anion exchange membrane 152 and the third grid 173, and can only flow downwards to the bottom holes of the second grid 172 through the second grid 172, and then sequentially passes through the anion exchange membrane 152, the third grid 173, the positive electrode plate 161, the first insulating partition 191 and the first pressing plate 181 and flows out through the purified water outlet 13, and the water in the waterway channel is purified water.
The water of the second water inlet 12 may sequentially pass through the second pressing plate 182, the second insulating partition 192, the first mesh 171 and the anion exchange membrane 152 to reach the second mesh 172 through the pores. The raw water cannot directly pass through the anion exchange membrane 152 and the third grid 173, but only can flow down to the bottom holes of the second grid 172 through the second grid 172, and then sequentially passes through the anion exchange membrane 152, the third grid 173, the positive electrode plate 161, the first insulating separator 191 and the first pressing plate 181 and flows out through the concentrated water outlet 14, and the water in the water channel is concentrated water.
To sum up, this application disinfects through setting up ultraviolet germicidal device, can reduce the bacterial content of water purification play aquatic. Experiments prove that the flow of the purified water outlet 13 is 750mL/min, the flow of the concentrated water outlet 14 is 250mL/min, and the total water inflow is 1000 mL/min. Taking the embodiment in which the sterilization device 20 is disposed on the first branch pipe 32 as an example, as shown in fig. 1, 99.9% of the bacteria entering the electrodialysis membrane stack 10 can be sterilized by setting the ultraviolet power of the sterilization device 20 to 30 w.
If the embodiment of disposing the sterilization device 20 on the water inlet pipe 31 is taken as an example, as shown in fig. 2, the ultraviolet power of the sterilization device 20 is set to 40w, so as to achieve the purpose of sterilizing 99.9% of bacteria.
If the embodiment that the sterilization device 20 is disposed on the purified water outlet pipe 41 is taken as an example, as shown in fig. 3, the ultraviolet power of the sterilization device 20 can be adjusted according to the water flow rate of the purified water outlet pipe 41, so as to prolong the service life of the ultraviolet lamp while ensuring the sterilization effect.
A water purification system according to an embodiment of the present invention is described below. According to the utility model discloses water purification system includes according to the utility model discloses the electrodialysis membrane stack subassembly 1 of above-mentioned embodiment.
According to the utility model discloses water purification system, through utilizing according to the utility model discloses electrodialysis membrane stack subassembly 1 of above-mentioned embodiment has that the water consumption is healthy, be difficult for breeding advantages such as bacterium.
Other constructions and operations of the water purification system according to embodiments of the present invention are known to those skilled in the art and will not be described in detail herein.
In the description herein, references to the description of the term "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 invention. In this specification, the schematic representations of the terms used above 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 invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. An electrodialysis membrane stack assembly, comprising:
the electrodialysis membrane stack is provided with a first water inlet, a second water inlet, a purified water outlet and a concentrated water outlet, the first water inlet is communicated with the purified water outlet, and the second water inlet is communicated with the concentrated water outlet;
and the sterilizing device is communicated with at least one of the first water inlet and the purified water outlet.
2. An electrodialysis membrane stack assembly according to claim 1, further comprising:
the water inlet pipe is communicated with a water source;
the first branch pipe is connected with the water inlet pipe and the first water inlet;
and the second branch pipe is connected with the water inlet pipe and the second water inlet.
3. An electrodialysis membrane stack assembly according to claim 2, wherein said sterilizing device is connected to said inlet pipe.
4. Electrodialysis membrane stack assembly according to claim 2, wherein the sterilization device is connected to the first branch tube.
5. An electrodialysis membrane stack assembly according to claim 1, further comprising a purified water outlet pipe connected to the purified water outlet, the sterilizing device being connected to the purified water outlet pipe.
6. Electrodialysis membrane stack assembly according to claim 1, wherein the sterilization device is a uv sterilization device.
7. Electrodialysis membrane stack assembly according to claim 1, wherein the electrodialysis membrane stack comprises:
the membrane group comprises a cation exchange membrane and an anion exchange membrane which are oppositely arranged;
the electrode group comprises a positive electrode plate and a negative electrode plate, the positive electrode plate is arranged on one side of the membrane group, and the negative electrode plate is arranged on the other side of the membrane group;
the baffle plate comprises a first grid, a second grid and a third grid, the first grid is arranged between the negative electrode plate and the cation exchange membrane, the second grid is arranged between the cation exchange membrane and the anion exchange membrane, and the third grid is arranged between the anion exchange membrane and the positive electrode plate;
the first pressing plate is in press connection with the positive electrode plate, and the second pressing plate is in press connection with the negative electrode plate.
8. An electrodialysis membrane stack assembly according to claim 7, wherein a first insulating separator is provided between the first pressure plate and the positive electrode plate, and a second insulating separator is provided between the second pressure plate and the negative electrode plate.
9. An electrodialysis membrane stack assembly according to claim 7, wherein the guide plate is formed with a first flow passage communicating the first water inlet and the purified water outlet and a second flow passage communicating the second water inlet and the concentrated water outlet.
10. A water purification system comprising an electrodialysis membrane stack assembly according to any one of claims 1-9.
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| CN114163041A (en) * | 2020-12-10 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Electrodialysis membrane stack subassembly and water purification system that has it |
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| CN114163041A (en) * | 2020-12-10 | 2022-03-11 | 佛山市美的清湖净水设备有限公司 | Electrodialysis membrane stack subassembly and water purification system that has it |
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