CN201565259U - Inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate - Google Patents
Inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate Download PDFInfo
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- CN201565259U CN201565259U CN2009202018235U CN200920201823U CN201565259U CN 201565259 U CN201565259 U CN 201565259U CN 2009202018235 U CN2009202018235 U CN 2009202018235U CN 200920201823 U CN200920201823 U CN 200920201823U CN 201565259 U CN201565259 U CN 201565259U
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- dividing plate
- baffle plate
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Abstract
The utility model discloses an inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate, in particular to an electrodialysis baffle plate for a bipolar membrane. The electrodialysis baffle plate comprises a plate frame body, a water distribution flow passage, liquid guiding holes and a plate center baffle plate, wherein one liquid guiding hole is a semicircular liquid guiding hole, the semicircular liquid guiding hole is connected with the water distribution flow passage and communicated with the inner cavity of the plate frame body, three liquid guiding holes are respectively arranged at one end of the plate frame body, the special plate center baffle plate for the flow passage is distributed in the inner cavity of the plate frame body, and a layer of coating made of a polymer material is coated on the surface of the plate frame body. The utility model has the advantages that the electrodialysis baffle plate has small resistance and leakage prevention, the water passing amount can be improved, the common use of a two-compartment chamber, a three-compartment chamber and a four-compartment chamber can be realized through the same baffle plate, clamping plates at both sides of a membrane stack have lower requirements for pressure size and uniformity, and the electrodialysis baffle plate has inside and outside leakage prevention, easier installation and the like. The utility model can be widely applied to an electrodialysis industry.
Description
Technical field
The utility model relates to a kind of electrodialysis plant, specifically is meant the parts in a kind of bipolar membrane electrodialysis device.
Technical background
The dividing plate of existing electric dialyzator generally is plane deckle board type structure.It has hollow frame, and the space is laid with filter in the framework, and the framework two ends are evenly equipped with the square or circular aquaporin of comparatively dense respectively, and the center distance of general adjacent aquaporin is less than 50 millimeters.The aquaporin of framework one end is an intake tunnel, and the aquaporin of the other end is an exhalant canal, and the aquaporin of every end is alternate to offer the some cloth water flow passage that are connected with middle spacer web, and the cloth water flow passage that the exhalant canal of intake tunnel and offside is offered interlaces.Be coated with anion-exchange membrane on the one side of dividing plate, then be coated with cation-exchange membrane on the another side, offer respectively on the yin, yang amberplex two ends with dividing plate on the corresponding hole of each delivery hole, but the aperture of this hole all equates with big delivery hole on the dividing plate.By dividing plate, amberplex, reverse dividing plate, amberplex ... be superimposed together successively and promptly form " membrane stack ", wherein clip a dividing plate between the every pair of anion and cation exchange membrane and be one " film to ", " film to " interior space is a freshwater room or dense hydroecium, dividing plate stacked with corresponding delivery hole, hole string on the amberplex and promptly constituted catheter dense, freshwater room this moment, added that at the two ends of membrane stack positive-negative electrode plate promptly forms electric dialyzator.
The shortcoming that above-mentioned traditional electrical dialyzer dividing plate exists is:
1, work in-process easily causes baffle surface distortion or out-of-flatness, thereby influence the sealing between dividing plate and the amberplex and cause that deep or light water string leakage, particularly rich-lean ratio are when higher;
Thereby 2, when operation amberplex be absorbed in each cloth water flow passage easily and cause that string leaks, particularly the influence of Bipolar Membrane device is more remarkable, the reason of leaking owing to string makes the acid of Bipolar Membrane or the concentration of alkali be difficult to improve;
3, because can not to add the building site during Surface Machining of dividing plate smooth fully or elasticity is not enough, cause dope easily to the outside seepage of membrane stack, this is the common fault of existing nearly all dividing plate;
4, dividing plate mostly only is suitable for the out-phase electrodialytic membranes, owing to when the pressure ratio of membrane stack clamping plate is big, make homogeneous membrane or Bipolar Membrane breakage easily, and be not suitable for homogeneous membrane or Bipolar Membrane.
Through many people in recent years the research of dividing plate is improved above shortcoming, improving aspect anticreep, the leakage of anti-string, antiseep, the minimizing resistance performance many.But performance in the following areas is not enough:
1, dividing plate almost can only be suitable for two lattice chamber Bipolar Membrane device or electric dialyzators, and for three lattice chamber Bipolar Membrane or four lattice chamber electric dialyzators, just needs the dividing plate of two kinds or three kinds layouts of processing, increases processing and the difficulty of installing;
2, be not very desirable aspect the anti-outside seepage, promptly when long-play, solution can be to the membrane stack external penetration.Though existing many products have been done a little improvement in this respect, as with resilient PP material, and a surface has netted sealing strip therein, but when mounted, to the pressure size of the clamping plate on membrane stack both sides, uniformity requirement than higher, the general torsion that uses screw bolt reinforcing is installed relatively difficulty more than 15N.m.
The utility model content
The purpose of this utility model is that the structure of existing electric dialyzator dividing plate is carried out technological improvement, thus providing a kind of seals easily, good airproof performance, leak in anti-, the even resistance of water distribution is little, circulation is big a kind of electric dialyzator dividing plate; This dividing plate of a kind of pattern can realize that two lattice chambers, three lattice chambers, four Room are general; Heterogeneous membrane, homogeneous membrane, Bipolar Membrane are general.Technical solution of the present utility model is: it is made of plate frame body, plate septum cordis net, delivery hole, cloth water flow passage.Delivery hole is distributed in the plate frame body two ends and is symmetrical distribution, and every end is all offered three circular delivery hole and semicircle delivery holes that size is alternate; Being connected in being between semicircle delivery hole and the plate septum cordis net disperses the cloth water flow passage that arc Eight characters mouth is arranged, and each cloth water flow passage is along the wide runner of Eight characters mouth direction flaring; The sheet frame material adopts the PP elastomeric material; Sheet frame two surfaces scribble special-purpose sealing elastic coating.
The utility model is achieved by following technical proposals:
A kind of bipolar membrane electrodialysis dividing plate, it comprises plate frame body (4), cloth water flow passage (3), delivery hole (1), plate septum cordis (5), it is characterized in that having a delivery hole is semicircle delivery hole (2), semicircle delivery hole (2) is connected with cloth water flow passage (3), and connect with the inner chamber of plate frame body (4), end at plate frame body (4) respectively has circular delivery hole (1) to have 3, plate frame body (a 4) plate septum cordis of inner chamber cloth (5).
As preferably, plate frame body (4) both side surface described in above-mentioned a kind of bipolar membrane electrodialysis dividing plate scribbles the coating (6) of one deck macromolecular material, and coating layer thickness is 0.05-0.12mm.
As preferably, be 0.3-0.8mm in described cloth water flow passage (3) width in above-mentioned a kind of bipolar membrane electrodialysis dividing plate, and be the arc trend that runner number wherein is the 4-8 road.
As preferably, the plate frame body (4) described in above-mentioned a kind of bipolar membrane electrodialysis dividing plate is to be made by PP, and its thickness is 0.3-0.5mm.
As preferably, the symmetric design of circular delivery hole (1) described in above-mentioned a kind of bipolar membrane electrodialysis dividing plate and semicircle delivery hole (2), by Rotate 180 degree, upset, Rotate 180 degree and upset, can obtain other three kinds of dividing plates, can realize that two lattice chambers, three lattice chambers, four Room are general.
As preferably, plate septum cordis net (5) described in above-mentioned a kind of bipolar membrane electrodialysis dividing plate adopts that thickness is identical with dividing plate, the PP elasticity filter of good springiness, runner special use, plate heart net with hot weld be welded on sheet frame in edge along last, the out-of-flatness of the baffle surface of having avoided directly being welded in surperficial going up and having caused, welding temperature is 105-115 ℃.
Beneficial effect:
The beneficial effects of the utility model are:
1, adopts laser cutting method, make the processing dimension of PP dividing plate more accurate, accurate, smooth, the cloth water flow passage is more thinner, wherein the water distribution width of flow path is 0.3-0.8mm and is the arc trend, these designs have effectively solved the problem that inner string leaks, more cloth water flow passage is arranged simultaneously, and the runner number is the 4-8 road, can improve water-flowing amount;
2, adopting total thickness is the dividing plate of 0.5-0.7mm, and wherein the PP thin plate is 0.3-0.5mm, two surperficial dedicated elas-tic coating 0.05-0.12mm.The thickness of this dividing plate also can not increase the resistance of solution owing to block board thickness is too thin and influence flow regime when effectively reducing the resistance of lattice chamber;
3, the plate septum cordis net of Cai Yonging be that thickness is identical with dividing plate, the PP elasticity filter of good springiness, runner special use, its network is similar to water inlet flow channel net used in the rolling reverse osmosis module, plate heart net with hot weld be welded on sheet frame in edge along last, the out-of-flatness of the baffle surface of having avoided directly being welded in surperficial going up and having caused, welding temperature is 105-115 ℃;
4, by complete symmetric design, a kind of dividing plate of pattern by Rotate 180 degree, upset, Rotate 180 degree and upset, can obtain other three kinds of dividing plates, can realize that two lattice chambers, three lattice chambers, four Room are general;
5, coat the dedicated elas-tic seal coating by two surfaces to dividing plate, coating available silicon rubber-type, the liquid polysulfide rubber type, the polyurethane rubber type, the ACM type, the elastic coating of materials such as fluorubber type and Oppanol, for fear of coating can with the adhesion of amberplex, carry out the tetrafluoro emulsion again at coating surface and do the face coat processing, this dividing plate can be made things convenient for, repeated disassembled and assembled, the sheet frame surface flattens with press after coating and tetrafluoro are handled well, press pressure is the 5-20 ton, final coating thickness is 0.05-0.12mm, and this coating has good springiness, strong alkali-acid resistance and organic solution solvent, sealing easily, the characteristics of good airproof performance.So lower to pressure size, the uniformity requirement to the clamping plate on membrane stack both sides, the torsion that generally uses screw bolt reinforcing is as long as 1.0-3.0N.m installs than being easier to;
Owing to have above advantage, this dividing plate can be suitable for electrodialytic heterogeneous membrane, homogeneous membrane, Bipolar Membrane.
Figure of description
The structural representation of Fig. 1 bipolar membrane electrodialysis dividing plate;
Fig. 2 A, B, C are respectively the bipolar membrane electrodialysis dividing plate through Rotate 180 degree, upset, Rotate 180 degree and upset, three kinds of diaphragm structure schematic diagrames that obtain;
Fig. 3 NaCl and K
2SO
4Double replacement four lattice chamber electrodialytic processes;
Fig. 4 Bipolar Membrane relieving haperacidity alkali three lattice chamber Bipolar Membrane processes;
1, circular delivery hole 2, semicircle delivery hole 3, cloth water flow passage 4, plate frame body 5, plate septum cordis 6, coating
The specific embodiment
Below in conjunction with accompanying drawing enforcement of the present utility model is specified:
It is the PP thin plate making of 0.35mm that the plate frame body 4 of dividing plate adopts thickness, its long 270 millimeters, and wide 110 millimeters, 0.55 millimeter of gross thickness; Plate septum cordis 5 adopts the PP elasticity filter of runner special use, it is 210 * 90 millimeters, thickness 0.55mm, 30 millimeters plate face is left at plate frame body 4 two ends respectively, on the plate face, offer three circular delivery holes 1, a semicircle delivery hole 2, the center distance of each adjacent aquaporin is 27 millimeters, Circularhole diameter is 10 millimeters, the semicircle delivery hole 2 of plate frame body 4 one ends is an intake tunnel, and the semicircle delivery hole 2 of the other end is an exhalant canal, the semicircle delivery hole 2 alternate cloth water flow passage 3 that are connected with plate septum cordis 5 that offer of every end, every runner of cloth water flow passage 3 is wide to be 1 millimeter, and every runner spacing is 1.5 millimeters.Above shape is used laser cutting, obtains surfacing, accurate in size PP dividing plate, and two surfaces are used dedicated elas-tic seal coating 6 and tetrafluoro surface treatment again, 8 tons of press pressure, thickness respectively is 0.1mm, and the dividing plate gross thickness is 0.55mm, and plate heart net welding temperature is 108 ℃.
Embodiment 1
Use homemade homogeneous ion-exchange membrane, 20 pairs of 270 * 110mm negative and positive films, 40 on the design's dividing plate, size also is 270 * 110mm, and Circularhole diameter is 10 millimeters, and runner is wide to be 0.8 millimeter, and every runner spacing is 1.5 millimeters.Coating layer thickness is 0.1mm, and the dividing plate gross thickness is 0.55mm.
Get 40 on dividing plate, wherein 10 for prototype is the first lattice chamber dividing plate, and as Fig. 1,30 Zhang Pings are divided into three groups in addition, is rotated 180 degree, upset, Rotate 180 degree and upset, be respectively second and third, four lattice chamber dividing plates, as shown in Figure 2; Order by Fig. 3 is folded film and dividing plate, electrode ruthenium-iridium-tantalum electrode, and the lucite that 2cm is thick is clamping plate, and clamping plate are reinforced with stainless steel bolt, and it is 2.0N.m that bolt steps up used wrench torsion, makes membrane stack.
The first lattice chamber, the 3rd lattice chamber add the NaCl of 2.00mol/L and the K of 1.00mol/L respectively
2SO
4The second lattice chamber, the 4th lattice chamber add the KCl of 0.10mol/L and the Na of 0.05mol/L respectively
2SO
4The flow of each lattice chamber is 100L/h.Initial voltage is 45V, and electric current 12A moved after 46 minutes, and electric current is reduced to 0.5A.(mol/L) is as shown in table 1 for the ion concentration of each lattice chamber:
Table 1NaCl and K
2SO
4The change in concentration of double replacement four lattice chamber electrodialytic processes
In the experimentation, flow does not have change substantially, and from the concentration of ion, string leaks and to deposit basically, has only to dense ratio when very big, may be because the film seepage have a spot of ion to ooze.
Embodiment 2
Use homemade homogeneous ion-exchange membrane, 5 pairs of 270 * 110mm negative and positive films, 5 of the Bipolar Membrane of 270 * 110mm Germany import, 15 on the design's dividing plate, size also are 270 * 110mm, and Circularhole diameter is 10 millimeters, runner is wide to be 0.8 millimeter, and every runner spacing is 1.5 millimeters.Coating layer thickness is 0.1mm, and the dividing plate gross thickness is 0.55mm.
Get 15 on dividing plate, wherein 5 for prototype is the first lattice chamber dividing plate, and as Fig. 1,10 Zhang Pings are divided into two groups in addition, is rotated 180 degree, upset, is respectively second and third lattice chamber dividing plate, as shown in Figure 2; Order by Fig. 4 is folded film and dividing plate, electrode ruthenium-iridium-tantalum electrode, and the lucite that 2cm is thick is clamping plate, and clamping plate are reinforced with stainless steel bolt, and it is 3.0N.m that bolt steps up used wrench torsion, makes the Bipolar Membrane membrane stack.
The second lattice chamber, the 3rd lattice chamber add HCl and the NaOH of 0.05mol/L respectively; The first lattice chamber adds the NaCl solution of 2.00mol/L; The flow of each lattice chamber is 100L/h.Initial voltage is 16V, and electric current 16A moved after 38 minutes, and electric current is reduced to 1.5A.(mol/L) is as shown in table 2 for the concentration of soda acid and ion:
The change in concentration of table 2 Bipolar Membrane relieving haperacidity alkali process
In the experimentation, flow does not have change substantially, and from the concentration of ion, string leaks and to deposit basically, have only to acid base concentration when higher, may have a spot of ion to ooze because the negative and positive film have a spot of seepage process under soda acid acts on simultaneously.
Claims (5)
- One kind leak outside in anti-, anti-creeping bipolar membrane electrodialysis dividing plate, it comprises plate frame body (4), cloth water flow passage (3), circular delivery hole (1), plate septum cordis (5), it is characterized in that having a delivery hole is semicircle delivery hole (2), semicircle delivery hole (2) is connected with cloth water flow passage (3), and connect with the inner chamber of plate frame body (4), end at plate frame body (4) respectively has circular delivery hole (1) to have 3, plate frame body (a 4) plate septum cordis of inner chamber cloth (5).
- 2. according to claim 1ly a kind ofly leak outside in anti-, anti-creeping bipolar membrane electrodialysis dividing plate, it is characterized in that described plate frame body (4) both side surface scribbles the coating (6) of one deck macromolecular material, coating layer thickness is 0.05-0.12mm.
- 3. according to claim 1ly a kind ofly leak outside in anti-, anti-creeping bipolar membrane electrodialysis dividing plate, it is characterized in that described cloth water flow passage (3) width is 0.3-0.8mm, and for arc moves towards, runner number wherein is the 4-8 road.
- 4. according to claim 1ly a kind ofly leak outside in anti-, anti-creeping bipolar membrane electrodialysis dividing plate, it is characterized in that described plate frame body (4) is to be made by PP, its thickness is 0.3-0.5mm.
- 5. according to claim 1ly a kind ofly leak outside in anti-, anti-creeping bipolar membrane electrodialysis dividing plate, it is characterized in that described plate septum cordis net (5) adopts the filter that thickness is identical with dividing plate, runner is special-purpose, plate heart net with hot weld be welded on sheet frame in edge along last, welding temperature is 105-115 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202018235U CN201565259U (en) | 2009-12-07 | 2009-12-07 | Inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202018235U CN201565259U (en) | 2009-12-07 | 2009-12-07 | Inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate |
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| CN201565259U true CN201565259U (en) | 2010-09-01 |
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| CN2009202018235U Expired - Lifetime CN201565259U (en) | 2009-12-07 | 2009-12-07 | Inside and outside leakage-proof and electric leakage-proof bipolar membrane electrodialysis baffle plate |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002725A (en) * | 2010-09-30 | 2011-04-06 | 杭州水处理技术研究开发中心有限公司 | Bipolar membrane device for producing gluconic acid |
| CN102910713A (en) * | 2012-11-19 | 2013-02-06 | 杭州水处理技术研究开发中心有限公司 | Electrodialysis spacer |
| CN102921303A (en) * | 2012-11-19 | 2013-02-13 | 杭州水处理技术研究开发中心有限公司 | Electrodialysis partition board with potted line on surface |
| CN103012954A (en) * | 2012-11-29 | 2013-04-03 | 北京京润新技术发展有限责任公司 | Nano silver modified polypropylene material for electrodialyzer clapboard network and preparation and application of nano silver modified polypropylene material |
| EP2772303A4 (en) * | 2011-10-28 | 2015-12-09 | Agc Engineering Co Ltd | Method for producing dialysis tank chamber frame |
| CN117797645A (en) * | 2024-02-28 | 2024-04-02 | 山东环科环保科技有限公司 | Method for predicting internal current of bipolar membrane electrodialysis membrane reactor device |
-
2009
- 2009-12-07 CN CN2009202018235U patent/CN201565259U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102002725A (en) * | 2010-09-30 | 2011-04-06 | 杭州水处理技术研究开发中心有限公司 | Bipolar membrane device for producing gluconic acid |
| CN102002725B (en) * | 2010-09-30 | 2012-04-04 | 杭州水处理技术研究开发中心有限公司 | Bipolar membrane device for producing gluconic acid |
| EP2772303A4 (en) * | 2011-10-28 | 2015-12-09 | Agc Engineering Co Ltd | Method for producing dialysis tank chamber frame |
| US9358724B2 (en) | 2011-10-28 | 2016-06-07 | Agc Engineering Co., Ltd. | Method for producing dialysis tank chamber frame |
| CN102910713A (en) * | 2012-11-19 | 2013-02-06 | 杭州水处理技术研究开发中心有限公司 | Electrodialysis spacer |
| CN102921303A (en) * | 2012-11-19 | 2013-02-13 | 杭州水处理技术研究开发中心有限公司 | Electrodialysis partition board with potted line on surface |
| CN103012954A (en) * | 2012-11-29 | 2013-04-03 | 北京京润新技术发展有限责任公司 | Nano silver modified polypropylene material for electrodialyzer clapboard network and preparation and application of nano silver modified polypropylene material |
| CN103012954B (en) * | 2012-11-29 | 2015-11-11 | 北京京润新技术发展有限责任公司 | A kind of electrical dialyzer splitter plate net nanometer silver modified polypropylene material, Preparation Method And The Use |
| CN117797645A (en) * | 2024-02-28 | 2024-04-02 | 山东环科环保科技有限公司 | Method for predicting internal current of bipolar membrane electrodialysis membrane reactor device |
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Granted publication date: 20100901 |
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