CN114788999A - Electrodialysis baffle - Google Patents
Electrodialysis baffle Download PDFInfo
- Publication number
- CN114788999A CN114788999A CN202110106060.1A CN202110106060A CN114788999A CN 114788999 A CN114788999 A CN 114788999A CN 202110106060 A CN202110106060 A CN 202110106060A CN 114788999 A CN114788999 A CN 114788999A
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- Prior art keywords
- sheet
- liquid
- plate frame
- flow channel
- electrodialysis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/42—Electrodialysis; Electro-osmosis ; Electro-ultrafiltration; Membrane capacitive deionization
- B01D61/422—Electrodialysis
Abstract
The invention discloses an electrodialysis partition plate, which belongs to the technical field of electrodialysis, and comprises a plate frame, liquid guide holes, a separation net and a liquid distribution flow channel, wherein the two ends of the plate frame are respectively provided with the liquid guide holes, the middle part of the plate frame is provided with a cavity, the liquid guide holes are communicated with the cavity through the liquid distribution flow channel, the separation net is arranged in the cavity, the liquid distribution flow channel comprises a first sheet and a second sheet, the inner side wall of the first sheet and/or the second sheet is provided with a plurality of liquid flow grooves, the first sheet is in clamping fit with the second sheet, and after clamping, a sandwich liquid flow channel is formed between the first sheet and the second sheet. The electrodialysis partition plate, the liquid distribution flow channel and the plate frame are designed in a non-integrated mode, independent production can be achieved, the problem of collapse or blockage caused by compression of the sandwich liquid flow channel can be effectively solved, the sealing performance is improved, and leakage is effectively prevented.
Description
Technical Field
The invention belongs to the technical field of electrodialysis, and particularly relates to an electrodialysis partition plate.
Background
The process of separating different solute particles by the selective permeability of a semi-permeable membrane is called dialysis. When dialysis is performed under the action of an electric field, the phenomenon in which charged solute particles in a solution migrate through a membrane is called electrodialysis. The technology of purifying and separating substances by electrodialysis is called electrodialysis method, is a new technology developed in the 50 s of the 20 th century, is originally used for seawater desalination, is widely used in chemical industry, light industry, metallurgy, paper making and medical industry at present, and is particularly most important for preparing pure water and treating three wastes in environmental protection, such as acid and alkali recovery, electroplating waste liquid treatment and useful substance recovery from industrial waste water.
The electrodialysis partition plate is an important structure in the electrodialysis technology, an electrodialysis liquid distribution flow channel and a plate frame of the electrodialysis partition plate in the prior art are integrally formed, a liquid flow channel can only be arranged on the surface of the electrodialysis liquid distribution flow channel, and is easy to collapse and block a liquid flow groove under pressure, poor in sealing performance and easy to leak; and an additional process of dredging the flow channel is required. The existing liquid distribution runner cannot be formed by injection molding at one time, and the production efficiency is low.
Disclosure of Invention
The invention aims to provide an electrodialysis partition plate, an electrodialysis liquid distribution flow channel and a plate frame are not integrally designed, independent production can be realized, a sandwich liquid flow channel is arranged, the problem of collapse or blockage caused by pressure is avoided, the sealing property is improved, and leakage is effectively prevented.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides an electrodialysis partition plate which comprises a plate frame, liquid guide holes, a separation net and a liquid distribution flow channel, wherein the liquid guide holes are formed in two ends of the plate frame, a cavity is formed in the middle of the plate frame, the liquid guide holes are communicated with the cavity through the liquid distribution flow channel, the separation net is arranged in the cavity, the liquid distribution flow channel comprises a first sheet and a second sheet, a plurality of liquid flow grooves are formed in the inner side wall of the first sheet and/or the second sheet, the first sheet and the second sheet are in clamping fit, and after clamping, a sandwich liquid flow channel is formed between the first sheet and the second sheet.
Preferably, the installing zone has been seted up on the sheet frame, be equipped with fourth of twelve earthly branches portion on the sheet frame of installing zone both sides, fourth of twelve earthly branches portion and installing zone intercommunication, the lateral wall of first piece outwards extends has first extension, the lateral wall of second piece outwards extends has the second extension, second extension and first extension block, after the block, first extension and second extension combine to form tenon portion, first piece and second piece are all installed in the installing zone, fourth of twelve earthly branches portion and tenon portion cooperation, cloth liquid runner installation back, the lateral surface of first piece and the lateral surface of second piece are in same horizontal plane with two sides on the sheet frame thickness direction respectively.
Preferably, the first extension and the second extension each comprise a connecting section and a diffuser section, the diffuser section being arranged at an outer end of the connecting section.
Preferably, the first extension portion is provided with a clamping hole or a protruding portion, the second extension portion is provided with a protruding portion or a clamping hole, and the protruding portion is clamped with the clamping hole.
Preferably, the water collecting tank is arranged on the water inlet side of the first sheet or the second sheet.
Preferably, the first sheet, the second sheet, the first extending portion, the second extending portion, the protruding portion, the liquid flow groove, the water collecting groove and the clamping hole are formed in one piece through injection molding.
Preferably, the plate frame is a co-extrusion material layer, the co-extrusion material layer comprises at least three layers, and the separation net is arranged on one of the layers of the co-extrusion material layer.
Preferably, the plate frame comprises a support layer, a first sealing layer and a second sealing layer, and at least one first sealing layer and at least one second sealing layer are respectively co-extruded on two surfaces in the thickness direction of the support layer.
Preferably, the drainage holes comprise open holes and closed holes, the open holes and the closed holes are arranged at intervals, and the open holes are communicated with the sandwich liquid flow channel.
The beneficial effects of the invention are as follows:
1. the sandwich liquid flow channel is formed in the electrodialysis water distribution flow channel, so that the sandwich liquid flow channel is positioned in the liquid distribution flow channel but not on the surface, the problem of collapse or blockage caused by compression of the sandwich liquid flow channel can be effectively avoided, the sealing performance is improved, and leakage is effectively prevented.
2. The liquid distribution flow channel and the plate frame are designed in a non-integrated mode, independent production can be achieved, the liquid distribution flow channel and the plate frame can be installed in a combined mode according to requirements, different types of electrodialysis partition plates are formed, and the market adaptability is high.
3. Through the mortise and tenon cooperation of tenon part and mortise part, play the positioning action to the cloth liquid runner, be favorable to follow-up welding.
4. The water collecting tank is favorable for collecting water.
5. Through the coextrusion design of the supporting layer, the first sealing layer and the second sealing layer, the plate frame has good strength, stiffness and sealing performance and processing performance, is suitable for various welding processing technologies, is not easy to delaminate and has good overall sealing performance.
6. The injection molding process is simple, the sandwich liquid flow channel is convenient to form, the strength is high, the sealing performance is good, and the production efficiency is high.
Drawings
Fig. 1 is a schematic front view of an electrodialysis separator according to an embodiment of the present invention.
Fig. 2 is a schematic front view of a liquid distribution channel according to an embodiment of the invention.
Fig. 3 is a schematic front view of a first sheet according to an embodiment of the present invention.
Fig. 4 is a schematic front view of a second sheet according to an embodiment of the invention.
Fig. 5 is a schematic bottom view of a liquid distribution channel according to an embodiment of the invention.
Fig. 6 is a schematic front view of a plate frame according to an embodiment of the present invention.
Fig. 7 is a schematic sectional view of a plate frame according to an embodiment of the present invention.
Fig. 8 is a schematic bottom view of a liquid distribution flow channel according to an embodiment of the invention.
Fig. 9 is a schematic front view of a second sheet according to an embodiment of the present invention.
The labels in the figures are: 100-liquid distribution flow channel, 1-first sheet, 2-second sheet, 3-first extension part, 4-second extension part, 5-liquid flow channel, 6-sandwich liquid flow channel, 7-clamping hole, 8-bulge part, 9-water collecting tank, 10-installation region, 11-mortise part, 12-tenon part, 13-plate frame, 131-supporting layer, 132-first sealing layer, 133-second sealing layer, 14-liquid guide hole, 141-open hole, 142-closed hole, 15-separation net, 16-cavity, 17-connecting section and 18-diffusion section.
Detailed Description
The invention will now be further described with reference to the accompanying drawings and detailed description.
Those not described in detail in this specification are within the skill of the art. In the description of the present invention, it is to be understood that the terms "center", "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, which are based on the orientations and positional relationships indicated in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.
The first embodiment is as follows:
as shown in fig. 1 to 7, the electrodialysis partition provided in this embodiment includes a plate frame 13, liquid guide holes 14, a partition net 15, and a liquid distribution flow channel 100, the liquid guide holes 14 are provided at both the upper and lower ends of the plate frame 13, a cavity 16 is provided in the middle of the plate frame 13, the liquid guide holes 14 are communicated with the cavity 16 through the liquid distribution flow channel 100, the partition net 15 is disposed in the cavity 16, the liquid distribution flow channel 100 includes a first sheet 1 and a second sheet 2, nine liquid flow channels 5 are provided on the inner side wall of the first sheet, the first sheet is in clamping fit with the second sheet, and after clamping, a sandwich liquid flow channel 6 is formed between the first sheet and the second sheet. Therefore, the sandwich liquid flow channel 6 is positioned in the water distribution channel 100 instead of on the surface, so that the problem of collapse or blockage caused by the compression of the sandwich liquid flow channel 6 can be effectively avoided, and the sealing property is improved.
Further, an installation area 10 is formed in the plate frame 13, the plate frames 13 on two sides of the installation area 10 are provided with the mortise parts 11, the mortise parts 11 are communicated with the installation area 10, the side wall of the first sheet extends outwards to form a first extension part, the side wall of the second sheet extends outwards to form a second extension part, specifically, the left side wall and the right side wall of the first sheet 1 extend outwards to form at least one first extension part 3, the left side wall and the right side wall of the first sheet 1 extend outwards to form two first extension parts 3, and the two first extension parts 3 on each side are distributed up and down; the left and right sides wall of second piece 2 all outwards extends has at least one second extension 4, and this embodiment all outwards extends for the left and right sides wall of second piece 2 has two second extensions 4, and two second extensions 4 on each side all distribute the setting from top to bottom. Second extension 4 and the 3 blocks of first extension, after the block, first extension 3 and second extension 4 combine to form tenon portion 12, and first piece 1 and second piece 2 are all installed in the installing zone, and mortise portion cooperates with tenon portion, and through the mortise and tenon cooperation of tenon portion 12 and mortise portion 11, play the positioning action to cloth liquid runner 100, be favorable to follow-up welding cloth liquid runner 100. After installation, the outer side surface of the first sheet 1 and the outer side surface of the second sheet 2 are respectively positioned on the same horizontal plane with the two side surfaces in the thickness direction of the plate frame 13. So, the design of liquid runner 100 and sheet frame 13 non-organic whole can carry out the isolated production, can carry out cloth liquid runner 100 and sheet frame 13 aggregate erection as required, forms the electrodialysis baffle of different grade type, and market adaptability is strong.
Further, first extension and second extension all include linkage segment 17 and diffuser 18, and the diffuser setting is in the outer end of linkage segment, through the setting of linkage segment and diffuser, and when the tenon portion that first extension and second extension combine to form and the fourth of the twelve earthly branches portion cooperation of sheet frame for electrodialysis water distribution runner is connected more stably with the sheet frame, is favorable to follow-up fixed connection operation with the sheet frame.
Furthermore, a clamping hole 7 is formed in the first extending portion 3, a protruding portion 8 is formed in the second extending portion 4, and the protruding portion 8 is clamped with the clamping hole 7. The first sheet 1 and the second sheet 2 are closed through the matching of the convex part 8 and the clamping hole 7, and the first sheet and the second sheet are connected into a whole.
Furthermore, the water collecting tank 9 is arranged on the water inlet side of the second sheet 2 to collect water.
Furthermore, the first sheet 1, the second sheet 2, the first extending portion 3, the second extending portion 4, the protruding portion 8, the liquid flow groove 5, the water collecting groove 9 and the clamping hole 7 are formed in one piece through injection molding. The injection molding can be carried out by one step without additionally digging the sandwich liquid flow channel 6, and only one step of injection molding is needed, so that the injection molding process is simple, the sandwich liquid flow channel 6 is convenient to form, the production efficiency is high, and the strength is high.
Further, the plate frame 13 is a co-extrusion material layer, and the co-extrusion material layer includes three layers. Specifically, the panel frame 13 includes a support layer 131, a first sealing layer 132, and a second sealing layer 133, and a layer of the first sealing layer 132 and a layer of the second sealing layer 133 are respectively co-extruded on two surfaces in the thickness direction of the support layer 131. In this embodiment, the first sealing layer 132 is positioned on the front side of the support layer 131, the second sealing layer 133 is positioned on the rear side of the support layer 131, and the screen 15 is disposed on the support layer 131. Through the co-extrusion design of the supporting layer 131, the first sealing layer 132 and the second sealing layer 133, the plate frame 13 has good strength, stiffness and sealing performance, good processability, suitability for various welding processing techniques, difficulty in delamination and good overall sealing performance.
Further, the liquid guiding hole 14 includes an open hole 141 and a closed hole 142, the open hole 141 and the closed hole 142 are spaced apart, and the open hole 141 is communicated with the sandwich liquid flow channel 6.
The second embodiment:
as shown in fig. 8 and 9, the present embodiment is different from the first embodiment in that: nine liquid flow grooves 5 are formed in the inner side walls of the first sheet 1 and the second sheet 2.
The above examples are only intended to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An electrodialysis separator, comprising:
comprises a plate frame, a liquid guide hole, a separation net and a liquid distribution flow passage;
both ends of the plate frame are provided with liquid guide holes;
the middle part of the plate frame is provided with a cavity;
the liquid guide hole is communicated with the cavity through the liquid distribution flow passage;
the separation net is arranged in the cavity;
the liquid distribution flow channel comprises a first sheet and a second sheet;
a plurality of liquid flow grooves are formed in the inner side wall of the first sheet and/or the second sheet;
the first sheet and the second sheet are in clamping fit, and after clamping, a sandwich liquid flow channel is formed between the first sheet and the second sheet.
2. Electrodialysis separator according to claim 1, characterized in that:
the plate frame is provided with an installation area, the plate frame on two sides of the installation area is provided with a mortise part, and the mortise part is communicated with the installation area;
the side wall of the first sheet extends outwards to form a first extending part, the side wall of the second sheet extends outwards to form a second extending part, the second extending part is clamped with the first extending part, after clamping, the first extending part and the second extending part are combined to form a tenon part, the first sheet and the second sheet are installed in the installation area, and the mortise part is matched with the tenon part;
after the liquid distribution flow channel is installed, the outer side face of the first sheet and the outer side face of the second sheet are respectively positioned on the same horizontal plane with the two side faces in the thickness direction of the plate frame.
3. Electrodialysis separator according to claim 2, characterized in that:
the first extension and the second extension each comprise a connecting section and a diffuser section;
the diffuser section is arranged at the outer end of the connecting section.
4. Electrodialysis separator according to claim 2, characterized in that:
the first extending part is provided with a clamping hole or a protruding part;
the second extending part is provided with a convex part or a clamping hole;
the protruding part is clamped with the clamping hole.
5. Electrodialysis separator according to claim 4, characterized in that:
the water collecting tank is arranged on the water inlet side of the first sheet or the second sheet.
6. Electrodialysis separator according to claim 5, characterized in that:
the first sheet, the second sheet, the first extending part, the second extending part, the protruding part, the liquid flow groove, the water collecting groove and the clamping hole are formed in one-step injection molding mode.
7. Electrodialysis separator according to claim 1, characterized in that:
the plate frame is a co-extrusion material layer, the co-extrusion material layer comprises at least three layers, and the separation net is arranged on one of the layers of the co-extrusion material layer.
8. Electrodialysis separator according to claim 7, characterized in that:
the plate frame comprises a supporting layer, a first sealing layer and a second sealing layer;
at least one first sealing layer and at least one second sealing layer are respectively and co-extruded on two surfaces in the thickness direction of the supporting layer.
9. Electrodialysis separator according to claim 1, characterized in that:
the liquid guide hole comprises an open hole and a closed hole;
the open holes and the closed holes are arranged at intervals;
the open pores are in communication with the sandwich liquid flow channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106060.1A CN114788999A (en) | 2021-01-26 | 2021-01-26 | Electrodialysis baffle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110106060.1A CN114788999A (en) | 2021-01-26 | 2021-01-26 | Electrodialysis baffle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114788999A true CN114788999A (en) | 2022-07-26 |
Family
ID=82460792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110106060.1A Pending CN114788999A (en) | 2021-01-26 | 2021-01-26 | Electrodialysis baffle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114788999A (en) |
-
2021
- 2021-01-26 CN CN202110106060.1A patent/CN114788999A/en active Pending
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