CN2910904Y - Electric deionization apparatus sealed by concave-convex surface and filling piece - Google Patents
Electric deionization apparatus sealed by concave-convex surface and filling piece Download PDFInfo
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- CN2910904Y CN2910904Y CN 200620025176 CN200620025176U CN2910904Y CN 2910904 Y CN2910904 Y CN 2910904Y CN 200620025176 CN200620025176 CN 200620025176 CN 200620025176 U CN200620025176 U CN 200620025176U CN 2910904 Y CN2910904 Y CN 2910904Y
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- dense water
- dense
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- membrane
- dividing plate
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- Separation Using Semi-Permeable Membranes (AREA)
Abstract
An electro deionization device which is sealed by bumpy surface and gasket consists of a clamping device, an electrode device, and a membrane stack three parts. The membrane stack consists of a plurality of membrane pairs, each of which is composed of by a negative membrane, a freshwater separator, an anode membrane and a concentrated water separator, and the freshwater chamber and the concentrated water chamber are filled with ion exchange resin. Embedding the ion exchange membrane into the concave platform of the compartment gasket and then putting them between the convex surface around the freshwater chamber and the concave surface around the concentrated water separator cavity to form the sealed structure of the freshwater chamber and the concentrated water chamber. The convex surface around each intake/outlet of the freshwater separator and the concave surface around each intake/outlet of the concentrated water chamber are sealed with gasket without the concave platform. The utility model has good effects of seal, is reliable in operation, simple in device structure, and convenient for application.
Description
Technical field the utility model relates to a kind of water treatment device, relates in particular to a kind of electric deionizer that seals with male and fomale(M﹠F) and pad.
Background technology electrodeionization (being called for short EDI) is that ion-exchange membrane is combined with ion exchange resin, realizes the novel sepn process of continuous degree of depth deionization operation under the effect of DC electric field.The key distinction of EDI and traditional electrodialytic technique is filling ion-exchange resin in its freshwater room, it not only can realize advanced desalination, and ion exchange resin is carried out cyclic regeneration by the water decomposition phenomenon in the process, thereby avoided electrodialysis can not directly produce the shortcoming of ultrapure water and the frequent acid-alkali regeneration of ion-exchange needs simultaneously, process is moved continuously, non-environmental-pollution.In recent years, the new technology that EDI produces as ultrapure water, at electric power, electronics, medicine, fields such as chemical industry have obtained development more rapidly.
Good sealing is extremely important for the Performance And Reliability of EDI device.In the EDI device operational process, membrane stack inside has higher operating pressure with respect to the external world on the one hand, causes the external leaks of device easily; On the other hand, because that pressure is made in fresh water and dense water conservancy project is different, be easy to scurry water in the interior leakage of the inner formation of membrane stack between the two.The degradation that water all can cause device is scurried in external leaks and interior leakage, and external leaks also often causes short circuit, device even can't normally move when serious.Therefore, the EDI Design of device should strengthen sealing effectiveness, avoids the external leaks of device and interior leakage to scurry water, to improve the Performance And Reliability of process operation.In the existing EDI device, there is certain defective in the Seal Design of device.Utility model patent ZL99241918.2 has proposed a kind of electric deionizer, at diluted gasket entrance and exit place, and the runner of a secret tunnel formula of design.Diluted gasket is made up of diluted gasket main body and cover plate, leaves the runner of gap as fresh water between cover plate and the diluted gasket main body, and current are evenly distributed, and prevents that the film at diluted gasket entrance and exit place from subsiding, resin leakage and obstruction.This structure cover plate is thinner, and the point of suppon spacing is bigger, is easy to generate distortion and causes film to subside, and leaks in forming and scurries water; Expose the ion-exchange membrane edge of device, is easy in the long-time running process that dehydration is dry and cracked makes film forming local deformaton, and then cause the external leaks of membrane stack or inside to scurry water.Patent ZL00200207.8 and ZL02252816.4 improve device, tow sides at diluted gasket are provided with recessed platform simultaneously, respectively anion and cation exchange membrane is embedded in the frame of dividing plate, rely on snap-in force to make the outside surface of negative and positive film equal with the double-edged frame of diluted gasket respectively, film is placed in membrane stack inside fully and does not expose, avoid the possible dry and cracked distortion of film edge, improved the sealing effectiveness of device.Said apparatus all is to have utilized the pad effect of ion-exchange membrane to reach the purpose of sealing in essence, ion-exchange membrane sees through the part that acts on except playing ion selectivity, all the other parts that are clamped between two dividing plates are used as pad, do not adopt other seal means.And the commercial heterogeneous ion-exchange membrane that adopts usually in the present EDI device, be to adopt inert binders such as powdered ion exchange resin and polyethylene to mix by a certain percentage, hot pressing forms behind mixing pulling-on piece, the thickness of diaphragm hygrometric state is about 0.5mm, from its material and thickness, ion-exchange membrane seals as pad under higher operating pressure, cause easily between the external leaks of freshwater room and dense hydroecium and each intake-outlet and and each compartment between inside scurry water, influence the Performance And Reliability of device operation.Therefore, the Seal Design of existing apparatus is demanded urgently improving.
There is dense hydroecium electroconductibility defect of insufficient in existing various EDI device.Usually only in the diluted gasket of device filling ion-exchange resin to strengthen electroconductibility, adopt the inertia silk screen in the middle of the dense water dividing plate and filling ion-exchange resin not, therefore dense hydroecium resistance is bigger, circulation improves device performance with salt often to need dense water, not only increased extra pharmaceutical chemicals consumption, and the apparatus structure complexity, running maintenance is difficulty comparatively.In the current various EDI devices, another defective is the current skewness of concentration compartments.Respectively establish a concentrated water hole at the two ends of dense hydroecium dividing plate for general, for bigger industrialized unit, this design is difficult to make current uniform distribution on the width of dividing plate, has the inadequate zone of flowing, and often causes the device fouling in long-time running.
The summary of the invention the purpose of this utility model is to provide a kind of electric deionizer that seals with male and fomale(M﹠F) and pad, and the sealing effectiveness of intensifying device avoids external leaks and inside to scurry water, makes the operation of device more reliable; Strengthen the electroconductibility of dense hydroecium, need not dense water with the salt circulation, make apparatus structure simple, running maintenance is convenient; Dense water dividing plate current are evenly distributed, and improve the performance of device, and are easy to processing and manufacturing.
The technical solution of the utility model is: a kind of electric deionizer comprises gripping unit, electrode device and membrane stack, to forming, each film is to by cavity block by some films for membrane stack, diluted gasket, anode membrane, dense water dividing plate is formed, equal filling ion-exchange resin in freshwater room and the dense hydroecium.Ion-exchange membrane is embedded in the concave station on the compartment pad, then the two is placed between the concave surface of the convex surface of freshwater room periphery and dense water dividing plate cavity periphery, between the concave surface of the convex surface of each intake-outlet periphery of diluted gasket and dense each intake-outlet periphery of water dividing plate, place not pad respectively with concave station; Perhaps, in the concave station on cavity block or the anode membrane embedding compartment pad, then the two is placed between the convex surface of the concave surface of diluted gasket cavity periphery and dense water dividing plate cavity periphery, between the convex surface of the concave surface of each intake-outlet periphery of diluted gasket and dense each intake-outlet periphery of water dividing plate, place not pad respectively with concave station.After device clamped, above-mentioned sealed structure can be realized the sealing of compartment and each intake-outlet effectively.
Fill single Zeo-karb in the dense hydroecium, also can fill the anion-cation exchange resin mixture.
Dense water dividing plate is assembled by dense water diaphragm body and current grid distributor.The mid-way is a cavity on the dense water diaphragm body, in order to filling ion-exchange resin.Dense water inlet and dense water out communicate with the cloth liquid bath by flowing flux respectively, and cloth liquid bath and intermediary cavity junction are provided with the current grid distributor.Have some slits on the current grid distributor along its length, the width of slit is less than the diameter of ion-exchange resin particles.
Male and fomale(M﹠F) of the present invention and gasket construction have been strengthened the sealing to compartment and each intake-outlet, can avoid external leaks and interior leakage to scurry water under higher operating pressure condition; And ion-exchange membrane placed membrane stack inner and do not expose fully, and the sealing effectiveness of having avoided the dry and cracked distortion of film edge to cause descends, and has improved the device reliability of operation.In addition, do not need punching on the ion-exchange membrane, make the assembling of device more simple.Dense hydroecium filling ion-exchange resin has strengthened dense hydroecium electroconductibility, avoided dense water with the salt cyclical operation, apparatus structure is simple, running maintenance is convenient.Dense water diaphragm structure makes dense water current uniform distribution, improved the performance of device, and the dividing plate whole rigidity is good, and is not yielding, convenient processing and manufacture.
Description of drawings Fig. 1 is a structural representation of the present utility model;
Fig. 2 be device film to and the sealing means synoptic diagram;
Fig. 3 is the details synoptic diagram of fresh water and the sealing of dense water dividing plate;
Fig. 4 is the diluted gasket synoptic diagram;
Fig. 5 is dense water dividing plate synoptic diagram;
Fig. 6 is the sectional view of dense water dividing plate along the 1-1 section;
Fig. 7 be the current grid distributor and with the assembling synoptic diagram of dense water diaphragm body;
Fig. 8 is the structural representation of compartment pad;
Fig. 9 is the synoptic diagram of compartment pad section;
Figure 10 is the mobility status synoptic diagram of each strand current in device.
Embodiment is by shown in the accompanying drawing, and the utility model comprises gripping unit, electrode device and membrane stack three parts.Gripping unit is by two clamping pieces 3,8 and bolt 1, and nut 2 is formed; Electrode device is by anode 4, anode frame 5, and negative electrode 6 and negative electrode frame 7 are formed, and divide the both sides that are located at membrane stack; To forming, each film is to by cavity block 11 by some films for membrane stack, diluted gasket 12, and anode membrane 13, dense water dividing plate 14 is formed.
Have concave station 36 on the compartment pad 35, the height of concave station 36 should be slightly less than the cavity block 11 of hygrometric state or the thickness of anode membrane 13.Compartment pad 35 can adopt materials such as silicon rubber, makes with injection molding way.When assembling device, in the concave station 36 that cavity block 11 or anode membrane 13 are embedded on the compartment pads 35, then the two is placed between the concave surface 75 of the convex surface 65 of diluted gasket 12 and dense water dividing plate 14; Original water inlet pad 31, dense water inlet pad 32, water outlet pad 33, dense water out pad 34 places respectively between convex surface 61 and the concave surface 71,62 and 72,63 and 73,64 and 74 for not with the conventional pads of concave station; Anode frame 5 and negative electrode frame 7 surfaces are provided with convex surface 66, between the concave surface 75 on convex surface 66 and the dense water dividing plate 14, place not the conventional pads 37 with concave station.
The another kind of implementation of described device can adopt the diluted gasket surface that concave surface is set, and dense water baffle surface is provided with the form of convex surface.In the concave station on cavity block or the anode membrane embedding compartment pad, then the two is placed between the convex surface of the concave surface of diluted gasket and dense water dividing plate, between the convex surface of the concave surface of each intake-outlet periphery of diluted gasket and dense each intake-outlet periphery of water dividing plate, place pad respectively.
Have bolt hole 28 on diluted gasket 12 and the dense water dividing plate 14, the mode that clamps in device adopts.After device clamped, described sealed structure promptly constituted good sealing to each compartment and intake-outlet.
The general anion-cation exchange resin mixture of filling in the freshwater room 25, its volume ratio is 1: 1-2: 1.In dense hydroecium 46, fill single Zeo-karb, also can fill the anion-cation exchange resin mixture.The actual (real) thickness of dense hydroecium 46 comprises the thickness and the thickness that installs both sides, clamping back pad 35 of the cavity 45 of dense water dividing plate.
Dense water dividing plate 14 is assembled with current grid distributor 50 by dense water diaphragm body 40.Dense water inlet 22 on the dense water diaphragm body 40 and dense water out 24 are that orthogonal cloth liquid bath 48 communicates by flowing flux 47 and cross section respectively, and 48 of cloth liquid baths communicate with rectangular opening 49.Current grid distributor 50 is fixed in the rectangular opening 49 by mode bonding or welding.Have many slits 51 on the current grid distributor 50 along its length, the width of slit 51 is less than the diameter of ion exchange resin, in order to avoid resin runs off from dense hydroecium.
Dense water diaphragm structure of the present utility model has improved the homogeneity that current are evenly distributed, and has improved the performance of device; The rigidity of dividing plate is better, and processing and manufacturing is more convenient.
The mobility status of each strand current is as follows in the device: former water 81 enters freshwater room 25 in every diluted gasket 12 by original water inlet 21, arrives water outlet 23 by resin layer, and compiling becomes fresh water water outlet 83; Dense water water inlet 82 is dispensed in every dense water dividing plate 14 by dense water water-in 22, enter cloth liquid bath 48 by flowing flux 47, behind current grid distributor 50 uniform distribution, flow into the resin layer in the dense hydroecium 46, current grid distributor 50 by the other end enters cloth liquid bath 48 again, to dense water out 24, compiling becomes dense water water outlet 84 through flowing flux 47.
The utility model can be assembled into the form of two sections of one-levels, one-level multistage or multistage multistage as required.The utlity model has good sealing effectiveness, reliable; Be easy to assembling; Apparatus structure obtains simplifying, operation and easy to maintenance.
Claims (5)
1. an electric deionizer that seals with male and fomale(M﹠F) and pad comprises gripping unit, electrode device and membrane stack three parts.Gripping unit is by two clamping pieces (3), (8) and bolt (1), and nut (2) is formed; Electrode device is by anode (4), anode frame (5), and negative electrode (6) and negative electrode frame (7) are formed, and divide the both sides that are located at membrane stack; Membrane stack by some films to forming, each film is to by cavity block (11), diluted gasket (12), anode membrane (13), dense water dividing plate (14) is formed, freshwater room (25) and dense hydroecium (46) be filling ion-exchange resin all, it is characterized in that: in the concave station (36) on cavity block (11) or anode membrane (13) the embedding compartment pad (35), then the two is placed between the concave surface (75) of peripheral convex surface (65) of freshwater room (25) and dense water dividing plate cavity (45) periphery, go up the convex surface of each intake-outlet periphery and the concave surface (61) and (71) that dense water dividing plate (14) is gone up each intake-outlet periphery at diluted gasket (12), (62) with (72), (63) and between (73) and (64) and (74), place pad (31) respectively, (32), (33) and (34); Perhaps, in the concave station on cavity block or the anode membrane embedding compartment pad, then the two is placed between the convex surface of the concave surface of diluted gasket cavity periphery and dense water dividing plate cavity periphery, between the convex surface of the concave surface of each intake-outlet periphery of diluted gasket and dense each intake-outlet periphery of water dividing plate, place pad respectively.
2. the electric deionizer that seals with male and fomale(M﹠F) and pad according to claim 1 is characterized in that: compartment pad (35) is provided with concave station (36), and the height of concave station (36) is less than the cavity block (11) of hygrometric state or the thickness of anode membrane (13).
3. the electric deionizer that seals with male and fomale(M﹠F) and pad according to claim 1 is characterized in that: dense hydroecium (46) is filled single Zeo-karb, perhaps the anion-cation exchange resin mixture.
4. the electric deionizer that seals with male and fomale(M﹠F) and pad according to claim 1, it is characterized in that: dense water dividing plate (14) is assembled by dense water diaphragm body (40) and current grid distributor (50), dense water inlet (22) on the dense water diaphragm body (40) and dense water out (24) communicate with cloth liquid bath (48) respectively, and cloth liquid bath (48) is installed current grid distributors (50) with intermediary cavity (45) junction.
5. the electric deionizer that seals with male and fomale(M﹠F) and pad according to claim 4 is characterized in that: have many slits (51) on the current grid distributor (50), the width of slit (51) is the diameter less than ion-exchange resin particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025176 CN2910904Y (en) | 2006-01-19 | 2006-01-19 | Electric deionization apparatus sealed by concave-convex surface and filling piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025176 CN2910904Y (en) | 2006-01-19 | 2006-01-19 | Electric deionization apparatus sealed by concave-convex surface and filling piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2910904Y true CN2910904Y (en) | 2007-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025176 Expired - Fee Related CN2910904Y (en) | 2006-01-19 | 2006-01-19 | Electric deionization apparatus sealed by concave-convex surface and filling piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2910904Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397814A (en) * | 2018-04-24 | 2019-11-01 | 新余净天使环保科技有限公司 | Filter core gasket |
| CN110397664A (en) * | 2018-04-24 | 2019-11-01 | 新余净天使环保科技有限公司 | Gasket briquetting |
-
2006
- 2006-01-19 CN CN 200620025176 patent/CN2910904Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110397814A (en) * | 2018-04-24 | 2019-11-01 | 新余净天使环保科技有限公司 | Filter core gasket |
| CN110397664A (en) * | 2018-04-24 | 2019-11-01 | 新余净天使环保科技有限公司 | Gasket briquetting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070613 |