CN117623467A - Fresh water partition plate assembly of high-flow electrodialyzer - Google Patents
Fresh water partition plate assembly of high-flow electrodialyzer Download PDFInfo
- Publication number
- CN117623467A CN117623467A CN202311629932.8A CN202311629932A CN117623467A CN 117623467 A CN117623467 A CN 117623467A CN 202311629932 A CN202311629932 A CN 202311629932A CN 117623467 A CN117623467 A CN 117623467A
- Authority
- CN
- China
- Prior art keywords
- water
- fresh water
- inlet hole
- fresh
- water inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000013505 freshwater Substances 0.000 title claims abstract description 107
- 238000005192 partition Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 153
- 238000007789 sealing Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000003456 ion exchange resin Substances 0.000 claims description 6
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 6
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000011324 bead Substances 0.000 claims 3
- 239000012528 membrane Substances 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 4
- 239000011347 resin Substances 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- -1 hydrogen ions Chemical class 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 229910021642 ultra pure water Inorganic materials 0.000 description 4
- 239000012498 ultrapure water Substances 0.000 description 4
- 150000001450 anions Chemical class 0.000 description 3
- 238000005341 cation exchange Methods 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 238000000909 electrodialysis Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000003014 ion exchange membrane Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005349 anion exchange Methods 0.000 description 1
- 239000003011 anion exchange membrane Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 230000007646 directional migration Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000009296 electrodeionization Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The application discloses a fresh water partition board assembly of a high-flow electrodialyzer, which comprises a fresh water board and a fresh water small piece, wherein one end of the fresh water board is provided with a raw water inlet hole, a concentrated water outlet hole and a pole water outlet hole, the other end of the fresh water board is provided with a pure water outlet hole, a concentrated water inlet hole and a pole water inlet hole, the raw water inlet hole, the concentrated water outlet hole, the pole water outlet hole, the pure water outlet hole, the concentrated water inlet hole and the pole water inlet hole form a three-inlet three-outlet structure, and the water quality of the raw water inlet hole, the concentrated water inlet hole and the pole water inlet hole is consistent; the middle part of the fresh water plate is provided with an inner frame, the number of the fresh water small pieces is two, and the two fresh water small pieces are respectively arranged at the two ends of the inner frame and are respectively arranged at the peripheries of the raw water inlet hole and the pure water outlet hole. The utility model discloses an effective area through increasing the negative and positive membrane on the fresh water board changes the structure of fresh water board and fresh water platelet, promotes the stability that the resin was filled, controls the velocity of flow of intaking, reaches out water quality and the qualified effect of water yield.
Description
Technical Field
The application relates to the technical field of ultrapure water preparation, in particular to a fresh water partition board assembly of a high-flow electrodialyzer.
Background
EDI electrodeionization technology is a novel pure water and ultrapure water preparation technology. The technology combines electrodialysis and ion exchange technology, and realizes directional migration of ions under the action of a direct current electric field by selective passing action of anion and cation exchange membranes on anions and cations and ion exchange action of ion exchange resin, thereby completing deep desalting of water and producing ultrapure water with resistivity up to 18 M.cm.
In the EDI device, various ions in the inlet water are removed after resin exchange, and the water is purified, and at this time, the ions in the water are removed by utilizing the ion exchange principle. Because the voltage is applied to the two sides of the ion exchange membrane, water molecules are electrolyzed into hydrogen ions and hydroxyl ions, and meanwhile, the ions exchanged by the hydrogen ions and the hydroxyl ions are transferred to the concentrated water chamber to be discharged under the action of the stabilized current source, so that the purposes of continuous regeneration and continuous use are realized.
The water output of the existing EDI membrane stack is mostly 5T/H or below 5T/H, the water output is generally improved by increasing the logarithm of the plates in the prior art, but when the logarithm of the plates exceeds a certain number, the water output cannot be effectively increased due to the restriction of fastening conditions and the pressure loss limitation of water inlets and water outlets. Therefore, there is a need to increase the water production from the improvement of the self-construction of the fresh water separator.
Disclosure of Invention
In order to solve the technical problems, the invention provides a fresh water partition board assembly of a high-flow electrodialysis device, which changes the structures of a fresh water board and fresh water chips by increasing the effective area of yin and yang membranes on the fresh water board, improves the stability of resin filling, controls the inflow velocity, and achieves the effect of qualified effluent quality and water yield.
The technical scheme provided by the invention is as follows:
the fresh water partition board assembly of the high-flow electrodialyzer comprises a fresh water board and fresh water small pieces, wherein the fresh water small pieces are arranged on the fresh water board, one end of the fresh water board is provided with a raw water inlet hole, a concentrated water outlet hole and a pole water outlet hole, the other end of the fresh water board is provided with a pure water outlet hole, a concentrated water inlet hole and a pole water inlet hole, the raw water inlet hole, the concentrated water outlet hole, the pole water outlet hole, the pure water outlet hole, the concentrated water inlet hole and the pole water inlet hole form a three-inlet three-outlet structure, and the water quality of the raw water inlet hole, the concentrated water inlet hole and the pole water inlet hole is consistent; the middle part of the fresh water plate is provided with an inner frame, the number of the fresh water small pieces is two, and the two fresh water small pieces are respectively arranged at the two ends of the inner frame and are respectively arranged at the peripheries of the raw water inlet hole and the pure water outlet hole.
Preferably, the fresh water plate further comprises a sealing ring, a groove is formed in the fresh water plate, and the sealing ring is arranged in the groove.
Preferably, the grooves comprise a first groove, a second groove and a third groove, wherein the first groove is arranged at the outer sides of the raw water inlet hole and the pure water outlet hole and is in a circular structure, the second groove is arranged between the inner frame and the first groove, and the third groove is respectively arranged at the outer sides of the concentrated water outlet hole, the polar water outlet hole, the concentrated water inlet hole and the polar water inlet hole; the number and the structural form of the sealing rings are matched with the grooves.
Preferably, the fresh water plate is of a circular structure, and a plurality of bolt holes which are circularly arranged are formed in the inner side of the outer edge of the fresh water plate.
Preferably, the front positions of the bolt holes are convex, the back positions of the bolt holes are concave, and a plurality of symmetrical reinforcing ribs are arranged between the bolt holes.
Preferably, a plurality of positioning holes are formed in the circumference where the bolt holes are located, and the positioning holes are uniformly arranged along the circumference where the bolt holes are located.
Preferably, the outer edge of the fresh water board is provided with a boss, and the height of the boss is 1-4 mm.
Preferably, the fresh water small piece comprises an overflow gap and a water passing port, a plurality of rows of convex particles are arranged on the inner surface of the fresh water small piece at intervals, the overflow gap is formed between every two convex particles, a reinforcing boss is arranged at the outer side edge of the fresh water small piece, the water passing port is positioned between the convex particles and the reinforcing boss, and the water passing port is connected with a water inlet hole and a water outlet hole on the fresh water plate to form a water flow channel.
Preferably, the convex particles close to one side of the inner frame are conical, the convex particles close to one side of the water passing port are circular, and the convex particles between the inner frame and the water passing port are of a strip-shaped structure.
Preferably, the width of the gap of the overflow gap is 0.5-2 mm, the width of the overflow gap is gradually increased along the direction of the water outlet, and the width of the overflow gap close to the inner frame is smaller than the diameter of the ion exchange resin.
Compared with the prior art, the method has the following advantages:
1. according to the fresh water partition board assembly of the high-flow electrodialyzer, the area of the fresh water board is increased, the original inner frame size is 400mm x 160mm, the inner frame size is 380mm x 340mm, the area is about 2 times of the original area, and due to the fact that the size of the inner frame is changed, the sizes of the fresh water board and the fresh water small pieces are correspondingly changed, the water yield and the water quality of a membrane stack can be effectively improved, and the water yield can reach 20 tons/H;
2. the fresh water partition plate assembly of the high-flow electrodialyzer is provided with the multi-layer sealing ring, so that the sealing performance of the water-through backing plate is effectively improved, and the possibility of water leakage can be reduced;
3. the fresh water partition plate component of the high-flow electrodialyzer adopts the opposite flow directions of fresh water and concentrated water and fresh water and extreme water in the module, so that the possibility of scaling on the surface of the anion-cation exchange membrane is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a fresh water separator assembly of a high-flow electrodialyzer according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fresh water board according to an embodiment of the present invention;
FIG. 3 is a schematic view of the structure of a fresh water chip according to an embodiment of the present invention;
fig. 4 is a schematic structural view of three types of seal rings corresponding to grooves in the embodiment of the present invention.
Reference numerals:
1. a fresh water plate; 2. fresh water tablets; 21. an overcurrent gap; 22. a water passing port; 23. protruding particles; 24. reinforcing the boss; 3. a raw water inlet hole; 4. a concentrated water outlet hole; 5. polar water outlet hole; 6. pure water outlet holes; 7. a concentrated water inlet hole; 8. a polar water inlet hole; 9. an inner frame; 10. a seal ring; 11. a groove; 111. a first groove; 112. a second groove; 113. a third groove; 12. bolt holes; 13. reinforcing ribs; 14. positioning holes; 15. a boss.
Detailed Description
In order to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
As shown in fig. 1-4, the embodiment of the invention provides a fresh water partition board assembly of a high-flow electrodialyzer, which comprises a fresh water board 1, a fresh water small piece 2 and a sealing ring 10, wherein the fresh water board 1 is of a circular structure, the fresh water board 1 and the fresh water small piece 2 are made of one or more of PP, ABS, PP and glass fiber mixed materials, the fresh water small piece 2 is arranged on the fresh water board 1, one end of the fresh water board 1 is provided with a raw water inlet hole 3, a concentrated water outlet hole 4 and a polar water outlet hole 5, the other end is provided with a pure water outlet hole 6, a concentrated water inlet hole 7 and a polar water inlet hole 8, the raw water inlet hole 3, the concentrated water outlet hole 4, the polar water outlet hole 5, the pure water outlet hole 6, the concentrated water inlet hole 7 and the polar water inlet hole 8 form a three-inlet and three-outlet structure, and the water inlet quality of the raw water inlet hole 3, the concentrated water inlet hole 4 and the polar water inlet hole 8 is consistent; the middle part of the fresh water board 1 is provided with an inner frame 9, the inner frame 9 is of a rectangular structure with round corners (in other embodiments, the inner frame can also be one of a rectangular structure, a square structure and a round structure), the inner frame 9 is used for filling ion exchange resin, the outer part of the inner frame 9 is tightly attached to the ion exchange membrane, the number of the fresh water small pieces 2 is two, and the two fresh water small pieces 2 are respectively arranged at the two end parts of the inner frame 9 and are respectively positioned at the peripheries of the raw water inlet hole 3 and the pure water outlet hole 6; the fresh water board 1 is provided with a groove 11, and the sealing ring 10 is arranged in the groove 11.
In this embodiment, the groove 11 includes a first groove 111, a second groove 112, and a third groove 113, where the first groove 111, the second groove 112, and the third groove 113 are configured to be filled with the sealing ring 10 to prevent water from flowing, the first groove 111 is disposed outside the raw water inlet hole 3 and the pure water outlet hole 6 and has a circular structure, the second groove 112 is disposed between the inner frame 9 and the first groove 111, and the third groove 113 is disposed outside the concentrated water outlet hole, the polar water outlet hole 5, the concentrated water inlet hole 7, and the polar water inlet hole 8, respectively; the number and the structure form of the sealing rings 10 are matched with those of the grooves 11 (the structure form of the sealing rings 10 is three forms as shown in fig. 4), namely, the sealing rings 10 also comprise a first sealing ring, a second sealing ring and a third sealing ring which correspond to the structures of the first groove 111, the second groove 112 and the third groove 113.
In this embodiment, the fresh water plate 1 has a circular structure, and a plurality of bolt holes 12 are arranged in a circular shape on the inner side of the outer edge of the fresh water plate 1. The bolt holes 12 are protruded in the front side and recessed in the rear side, and since the fresh water plate 1 is a component of the electrodialyzer, the electrodialyzer is a fresh water space and a concentrated water space composed of fresh water plate assemblies, concentrated water plate assemblies, and a cation membrane or a anion membrane therebetween which are alternately installed. The anion exchange membrane and the cation exchange membrane are arranged at intervals, ion exchange resins are respectively filled in the fresh water plate 1 and the concentrated water plate, under the ionization effect of the electrode device, a fresh water chamber, a concentrated water chamber and a polar water chamber are formed inside the device, ultrapure water is continuously produced, the front position of the bolt hole 12 is convex, the back position is concave, the three components of the fresh water plate 1, the concentrated water plate and the fresh water plate 1 are well assembled together, the front and the back of the fresh water plate 1 are used for marking and stacking the assembly, reverse installation is prevented during the assembly, and a plurality of symmetrical reinforcing ribs 13 are arranged between the bolt holes 12. 2-4 positioning holes 14 are formed in the circumference of the bolt hole 12, the positioning holes 14 are circular in shape and 8mm in diameter, and the positioning holes 14 are uniformly arranged along the circumference of the bolt hole 12.
In this embodiment, the outer edge of the fresh water board 1 is provided with the boss 15, the height of the boss 15 is 2mm, the effect of the boss 15 is to improve the appearance of the product, the assembled components are prevented from having gaps, and the strength of the fresh water board 1 can be enhanced.
In this embodiment, the fresh water small piece 2 includes an overflow gap 21, a water passing opening 22, and a plurality of rows of convex particles 23 arranged at intervals are arranged on the inner surface of the fresh water small piece 2, the overflow gap 21 is formed between every two convex particles, a reinforcing boss 24 is arranged at the outer edge of the fresh water small piece 2, the water passing opening 22 is located between the convex particles 23 and the reinforcing boss 24, and the water passing opening 22 is connected with a water inlet and a water outlet on the fresh water board 1 to form a water flow channel. The convex particles 23 close to the inner frame 9 are conical, the convex particles 23 close to the water passing port 22 are circular, and the convex particles 23 between the inner frame 9 and the water passing port 22 are of a strip-shaped structure. The gap width of the overflow gap 21 is 0.5-2 mm, the width of the overflow gap 21 gradually increases along the direction of the water outlet 22, and the width of the overflow gap 21 near the inner frame 9 is smaller than the diameter of the ion exchange resin.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The fresh water partition plate assembly of the high-flow electrodialyzer is characterized by comprising a fresh water plate (1) and a fresh water small piece (2), wherein the fresh water small piece (2) is arranged on the fresh water plate (1), one end of the fresh water plate (1) is provided with a raw water inlet hole (3), a concentrated water outlet hole (4) and a pole water outlet hole (5), the other end of the fresh water plate is provided with a pure water outlet hole (6), a concentrated water inlet hole (7) and a pole water inlet hole (8), and the raw water inlet hole (3), the concentrated water outlet hole (4), the pole water outlet hole (5), the pure water outlet hole (6), the concentrated water inlet hole (7) and the pole water inlet hole (8) form a three-inlet-three-outlet structure, and the water quality of the raw water inlet hole (3), the concentrated water inlet hole (7) and the pole water inlet hole (8) is consistent; the middle part of the fresh water board (1) is provided with an inner frame (9), the number of the fresh water small pieces (2) is two, and the two fresh water small pieces (2) are respectively arranged at two ends of the inner frame (9) and are respectively arranged at the peripheries of the raw water inlet hole (3) and the pure water outlet hole (6).
2. The fresh water separator assembly of a high-flow electrodialyzer according to claim 1, further comprising a sealing ring (10), wherein the fresh water plate (1) is provided with a groove (11), and the sealing ring (10) is arranged in the groove (11).
3. The fresh water separator assembly of the high-flow electrodialyzer according to claim 2, wherein the grooves (11) comprise a first groove (111), a second groove (112) and a third groove (113), the first groove (111) is arranged outside the raw water inlet hole (3) and the pure water outlet hole (6) and is in a circular structure, the second groove (112) is arranged between the inner frame and the first groove (111), and the third groove (113) is respectively arranged outside the concentrated water outlet hole (4), the polar water outlet hole (8), the concentrated water inlet hole (7) and the polar water inlet hole (5); the number and the structural form of the sealing rings (10) are matched with those of the grooves (11).
4. The fresh water separator assembly of a high-flow electrodialyzer according to claim 1, wherein the fresh water plate (1) has a circular structure, and a plurality of bolt holes (12) are formed in the inner side of the outer edge of the fresh water plate (1) in a circular arrangement.
5. The fresh water separator assembly according to claim 4, wherein the bolt holes (12) are protruded at the front side and recessed at the rear side, and a plurality of symmetrical reinforcing ribs (13) are provided between the bolt holes (12).
6. The fresh water separator assembly of a high-flow electrodialyzer according to claim 4, wherein a plurality of positioning holes (14) are formed in the circumference of the bolt holes (12), and the positioning holes (14) are uniformly arranged along the circumference of the bolt holes (12).
7. The fresh water separator assembly of a high-flow electrodialyzer according to claim 1, characterized in that the outer edge of the fresh water plate (1) is provided with a boss (15), the height of the boss (15) being 1-4 mm.
8. The fresh water separator assembly of the high-flow electrodialyzer according to any one of claims 1 to 7, wherein the fresh water small pieces (2) comprise a through-flow gap (21) and water passing holes (22), a plurality of rows of convex particles (23) which are arranged at intervals are arranged on the inner surface of the fresh water small pieces (2), the through-flow gap (21) is formed between every two convex particles, reinforcing bosses (24) are arranged at the outer side edges of the fresh water small pieces (2), the water passing holes (22) are positioned between the convex particles (23) and the reinforcing bosses (24), and the water passing holes (22) are connected with water inlet holes and water outlet holes on the fresh water plate (1) for forming a water flow channel.
9. The fresh water separator assembly according to claim 8, wherein the beads (23) on the side close to the inner frame (9) are tapered, the beads (23) on the side close to the water passing port (22) are rounded, and the beads (23) between the inner frame (9) and the water passing port (22) are of an elongated structure.
10. Fresh water separator assembly according to claim 8, characterized in that the gap width of the overflow gap (21) is 0.5-2 mm, the width of the overflow gap (21) gradually increases in the direction of the water port (22), and the width of the overflow gap (21) near the inner frame (9) is smaller than the diameter of the ion exchange resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311629932.8A CN117623467A (en) | 2023-11-30 | 2023-11-30 | Fresh water partition plate assembly of high-flow electrodialyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311629932.8A CN117623467A (en) | 2023-11-30 | 2023-11-30 | Fresh water partition plate assembly of high-flow electrodialyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117623467A true CN117623467A (en) | 2024-03-01 |
Family
ID=90021129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311629932.8A Pending CN117623467A (en) | 2023-11-30 | 2023-11-30 | Fresh water partition plate assembly of high-flow electrodialyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117623467A (en) |
-
2023
- 2023-11-30 CN CN202311629932.8A patent/CN117623467A/en active Pending
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