CN204093319U - Electrodialysis spacer - Google Patents
Electrodialysis spacer Download PDFInfo
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- CN204093319U CN204093319U CN201420542374.1U CN201420542374U CN204093319U CN 204093319 U CN204093319 U CN 204093319U CN 201420542374 U CN201420542374 U CN 201420542374U CN 204093319 U CN204093319 U CN 204093319U
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Abstract
The utility model relates to a kind of electrodialysis dividing plate used, particularly relates to a kind of for the electrodialytic dividing plate of homogeneous ion-exchange membrane.The separator sheets that this dividing plate is provided with delivery hole by side is made, described separator sheets comprises two sides, dividing plate framework center and is located at the flow-guiding screen at dividing plate framework center, it is characterized in that, this dividing plate comprises the separator sheets of more than 2 overlaps, described delivery hole in each separator sheets is more than 2, be provided with liquid re-distributor at dividing plate framework center near described pendant positions, between delivery hole and liquid re-distributor, be provided with more than one runner.Dividing plate good airproof performance described in the utility model, manifest without leaking outside, parasite current is few, feed liquid is evenly distributed, and dividing plate framework center with the addition of flow-guiding screen, has good turbulence effects to the liquid flowed through, and low cost of manufacture, easy to implement, have broad application prospects.
Description
Technical field
The utility model relates to a kind of electrodialysis dividing plate used, particularly relates to a kind of for the electrodialytic dividing plate of homogeneous ion-exchange membrane.
Background technology
The research of electrodialysis basic conception started from for 20 beginnings of the century, until nineteen fifty W.Juda trial-produces the anions and canons exchange membrane with high selectivity successfully, had established the practicality basis of electrodialytic technique.First electrodialysis plant is in the world made by nineteen fifty-two American I onics company, and uses it for brackish water desalination.To the 1970's, this new technology is promoted rapidly in developed countries such as America and Europes and is come, and is mainly used in brackish water desalination, desalinization, the processes such as preparing salt by working up seawater.After this, due to reverse osmosis technology developing rapidly in fields such as desalinizations, electrodialytic application reduces, only some application in minority fields such as chemical process desalinations.The current U.S., Japan, Germany etc. are in rank first on electrodialytic technique.
The preparation of Bipolar Membrane of the 1980's makes a breakthrough.Bipolar membrane electrodialysis is alternately arranged between positive and negative electrode by the moon or cation-exchange membrane and Bipolar Membrane, and under DC electric field effect, being motive force, utilizing the selective penetrated property of amberplex with potential difference, take salt as a kind of technology that bronsted lowry acids and bases bronsted lowry prepared by raw material.After nineteen ninety, bipolar membrane electrodialysis technology is developed rapidly.Be widely used in the field such as preparation and Industrial Wastewater Treatment of organic acids and base at present.
Electrodialysis plant mainly comprises pole plate, electrode, amberplex, dividing plate and clamping device etc., its median septum is one of parts main in electrodialysis plant, its Main Function forms certain gap in the middle of amberplex, form compartment, as the passage of feed liquid in electrodialysis running.Therefore, a good dividing plate should have: 1) good leak tightness between dividing plate and amberplex, to prevent in electrodialysis group device feed liquid to seepage (also cry and leak outside) outside group device; 2) good leak tightness between dividing plate and amberplex, prevents feed liquid seepage (also crying interior leakage) between different compartments in electrodialysis group device; 3) dividing plate has turbulence effects to the feed liquid flowed in electrodialysis group device, promotes the mixing of feed liquid, increases electrodialytic effect; 4) dividing plate has good distribution effect to the feed liquid flowed in electrodialysis group device, feed liquid fluid is evenly distributed in group device, does not produce dead angle, prevent membrane stack localized hyperthermia, damage amberplex and dividing plate; 5) dividing plate water distribution runner design should reduce parasite current as far as possible.
CN203591699 discloses a kind of electrodialysis spacer with buffer runner, comprise framework, the upper and lower of described framework is arranged with left delivery hole about horizontal line in the middle part of framework, middle delivery hole and right delivery hole, the middle part of described framework is provided with filter, left cloth water flow passage is provided with between described left delivery hole and filter, right cloth water flow passage is provided with between right delivery hole and filter, described left delivery hole and left water distribution flow passage, right delivery hole and right water distribution flow passage, described left cloth water flow passage and right cloth water flow passage are symmetricly set in framework about middle delivery hole, described filter is provided with buffer runner, the left cloth water flow passage on described framework top and right cloth water flow passage by buffer runner respectively with left cloth water flow passage and the right water distribution flow passage of framework bottom, buffer runner on filter is for falling " U " shape runner.The utility model can ensure that in runner, the control of liquid inventory is 0.5-2.0M
3/ h, can avoid flow velocity excessively slow, the situation generation that ion diffuse speed is excessively slow.
CN201482423 discloses a kind of electrodialysis spacer, its main board is surface plate hollow frame structure, hollow space is compartment, there is multiple pod apertures at main board two ends, wherein have the open pod apertures that communicates with the compartment of this layer of dividing plate and through this layer of dividing plate but with the closed pod apertures that the compartment of this layer does not communicate, it is characterized in that: be provided with the channel-shaped flow channel for liquids flowing to compartment from open pod apertures at main board both ends and dual-side.Remarkable advantage of the present utility model is: by arranging full of twists and turns channel-shaped flow channel for liquids at divider ends and side, extend the fluid course between concetrated pipe to compartment, thus increase resistance, reduce " parasite current ", solve the problem that in prior art electric dialyzator, " parasite current " mistake ambassador current efficiency significantly declines, power consumption can be made to reduce, and product design improves.
CN103816806 discloses a kind of electrodialysis spacer, comprise sheet frame, described sheet frame is provided with delivery hole and is communicated with the cloth water flow passage of delivery hole and sheet frame center cavity, every bar cloth water flow passage is at least divided into two sections, each section of cloth water flow passage is interlocked and is located at two sides of sheet frame, and two sections of adjacent cloth water flow passage are communicated with by the perforation running through sheet frame.The present invention, by every bar cloth water flow passage is divided into multistage, is then crisscross arranged on two side faces, under the condition of the cloth aquaporin of equal number, can increase the sealing property between amberplex and dividing plate.
CN201565259 disclose a kind of anti-in leak outside, anti-creeping bipolar membrane electrodialysis dividing plate, specifically refer to a kind of electrodialysis spacer for Bipolar Membrane.The utility model comprises plate frame body, cloth water flow passage, delivery hole, plate septum cordis, one is had for semicircle delivery hole in delivery hole wherein, semicircle delivery hole is connected with cloth water flow passage, and it is through with the inner chamber of plate frame body, delivery hole is respectively had to have 3 in one end of plate frame body, plate frame body inner chamber is furnished with the special plate septum cordis plate of a runner, and scribbles the coating of one deck macromolecular material on plate frame body surface.The utility model has the advantages that resistance is little, can improve water-flowing amount, anticreep, same dividing plate can realize that two lattice rooms, three lattice rooms, four lattice rooms are general, and pressure size, the uniformity requirement of the clamping plate on membrane stack both sides are lower, leak outside in anti-, install than being easier to.The utility model can be widely used in electrodialysis industry.
CN203291720 discloses a kind of bipolar membrane electrodialysis dividing plate of super-thin high efficient, it adopts rectangular box, framework bottom is for exchanging rete, top layer is exchanging the exchanger resin polymer coating that rete surrounding is width 5mm-15mm, at least 5-15 pod apertures is evenly distributed with in framework surrounding, have arc opening at every pod apertures interval at the upper and lower two ends of dividing plate, this arc opening is connected with a tubaeform flow-guiding channel.In this products application electrodialysis plant, by tens to even hundreds of is to superposition, because this product exchanger resin polymer coating thickness is thinning, so between opposed separators, sealing effectiveness is better, thus prevents interior leakage problems.And multiple flaring pod apertures water conservancy diversion thus make electrodialysis efficiency improve 20-30% than prior art.
CN102921303 discloses a kind of equipment of water-treatment technology field, specifically refers to a kind of electrodialysis spacer partition component of surface band potted line.The present invention includes plate frame body, cloth water flow passage, delivery hole, plate septum cordis net, it is characterized in that having the delivery hole of half quantity to be half elliptic delivery hole, half elliptic delivery hole is connected with cloth water flow passage, and it is through with the inner chamber of plate frame body, second half quantity delivery hole is had to be oval delivery hole in one end of plate frame body, plate frame body inner chamber cloth plate septum cordis net.Advantage of the present invention to improve water-flowing amount, reduces resistance; Solve the problem that inner string leaks, make dividing plate have resistance little, Reynolds number is large; There is good springiness, strong alkali-acid resistance and organic solvent, seal feature that is easy, good airproof performance.Therefore lower to the pressure size of the clamping plate to membrane stack both sides, uniformity requirement, as long as the general torsion 4-18N.m using screw bolt reinforcing, install than being easier to.
CN203577643 discloses a kind of equipment of water-treatment technology field, specifically refers to a kind of runner of electrodialysis spacer.Cloth water flow passage in the utility model is made up of runner body, front runner, flow passage device, reverse side runner, potted line, wherein the back side of front runner adds the front runner potted line that two are crossed whole runner, and the front of reverse side runner adds the reverse side runner potted line that two are crossed whole runner.The utility model has the advantages that there is higher elasticity, to reduce fluid and having good sealing etc. through the resistance of runner, dividing plate at the position of runner.
CN102910713 discloses a kind of water-treatment technology field, specifically refers to the partition component in a kind of electrodialysis plant.The present invention includes plate frame body, cloth water flow passage, delivery hole, plate septum cordis net, the delivery hole of half quantity is wherein had to be oval delivery hole, the delivery hole of second half quantity is that half elliptic delivery hole is connected with cloth water flow passage, and it is through with the inner chamber of plate frame body, the oval delivery hole of second half quantity is had, plate frame body inner chamber cloth plate septum cordis net in one end of plate frame body.Advantage of the present invention can improve water-flowing amount in water flow process, reduces resistance; There is good springiness, strong alkali-acid resistance and organic solvent, seal feature that is easy, good airproof performance.
CN200520015795 discloses the electrodialytic dividing plate of a kind of chemical separating film device.The centre of dividing plate is fluid course supporting network, and peripheral part is dividing plate frame, and the upper and lower parts of dividing plate frame are respectively equipped with liquid inlet/outlet and join liquid collecting hole, join between liquid collecting hole and fluid course supporting network upper and lower parts and are respectively equipped with cloth liquid bath runner.Cloth liquid bath runner is covered conduit cylinder hole shape, effectively can prevent exchange membrane from occurring depression, preventing seepage when assembling film forming pair.Dividing plate frame by acid-alkali-corrosive-resisting, resistance to oxidation, and has certain flexibility and flexible plastics or rubber plate and makes, and its thickness is 0.5-3 millimeter.The utility model has the advantages that: structure is simple, thickness is thin, does not occur seepage, consisting of film to the reduction of, membrane stack volume, the equipment of relative same volume, can improve its disposal ability.Block board thickness is thinning, and compartment resistance reduces, and voltage drop reduces, and direct current consumption reduces, and the corresponding reduction of operating cost, saves the energy, decrease spending.
Utility model content
The technical problem that the utility model solves is: although part electrodialysis spacer has made some improvements at present, anticreep, in leak outside in have some to be in progress, but more or less still there are some problems, as, runner quantity is few, feed liquid skewness, and in whole electrodialysis, feed velocity is inconsistent, not only reduce current efficiency, also easily cause situations such as burning membrane stack.
The purpose of this utility model is a kind of good airproof performance of exploitation, anti-to leak outside, interior leakage, and parasite current is few, have good distribution effect and good turbulence effects, and its process for machining and manufacturing is simple to feed liquid.This electrodialysis spacer can be applied to common electrodialysis plant and bipolar membrane electrodialysis device, can improve the current efficiency of electric dialyzator, reaches energy-saving and cost-reducing object.
Specifically, for the deficiencies in the prior art, the utility model provides following technical scheme:
A kind of electrodialysis spacer, the separator sheets being provided with delivery hole by side is made, described separator sheets comprises two sides, dividing plate framework center and is located at the flow-guiding screen at dividing plate framework center, it is characterized in that, this dividing plate comprises the separator sheets of more than 2 overlaps, described delivery hole in each separator sheets is more than 2, is provided with liquid re-distributor, is provided with more than one runner between delivery hole and liquid re-distributor at dividing plate framework center near described pendant positions.
Preferably, in above-mentioned electrodialysis spacer, described liquid re-distributor comprises first liquid redistributor E and second liquid redistributor D, be separately positioned on framework center first edge L1 and framework center second edge L2 near framework central side, wherein, described dividing plate framework center K is respectively framework center first edge L1 and framework center second edge L2 near the border of the first side J1 and the second side J2.
Preferably, in above-mentioned electrodialysis spacer, the runner of described separator sheets comprises first flow C and the second runner F, described delivery hole comprises the first delivery hole B1 and the second delivery hole B2, and be set in parallel on the first side J1 and the second side J2 respectively, described first flow C is one group of finedraw being arranged between the first delivery hole B1 and framework center first edge L1, the length of described finedraw is less than the edge M1 of the first delivery hole B1 close to framework center and the spacing of framework center first edge L1, and the half of large during the period distance;
Described second runner F is one group of finedraw being arranged between the second delivery hole B2 and framework center second edge L2, the length of described finedraw is less than the edge M2 of the second delivery hole B2 close to framework center and the spacing of framework center second edge L2, and the half of large during the period distance.
Preferably, in above-mentioned electrodialysis spacer, described first liquid redistributor E is provided with one group of finedraw, and the length of described finedraw is less than the width of first liquid redistributor E, and is greater than the half of this width; Described second liquid redistributor D is provided with one group of finedraw, and the length of described finedraw is less than the width of second liquid redistributor D, and is greater than the half of this width.
Preferably, in above-mentioned electrodialysis spacer, the finedraw of described first flow C extends to the first delivery hole B1 or framework center first edge L1, and the finedraw of described second runner F extends to the second delivery hole B2 or framework center second edge L2.
Preferably, in above-mentioned electrodialysis spacer, between described framework center first edge L1 and first liquid redistributor E, be provided with first side runner G; Second side runner H is provided with between described framework center second edge L2 and second liquid redistributor D.
Preferably, in above-mentioned electrodialysis spacer, the finedraw width of described first flow C and the second runner F is 0.1-1mm, and the distance between finedraw is 1-5mm.
Preferably, in above-mentioned electrodialysis spacer, this dividing plate comprises 2 separator sheets, and these 2 separator sheets stack according to the mode opposite layer making respective runner, liquid re-distributor is docked and connected respectively.
Preferably, in above-mentioned electrodialysis spacer, this dividing plate rotates 180 ° by the first separator sheets and obtains second partition sheet and the first separator sheets is laminated.
Preferably, in above-mentioned electrodialysis spacer, described dividing plate is electrodialysis four Room dividing plate, and wherein, described delivery hole comprises the first delivery hole B1 and the second delivery hole B2, and be set in parallel on the first side J1 and the second side J2 respectively, first delivery hole B1 and the second delivery hole B2 of the separator sheets of described dividing plate are all set to 8, difference linearly symmetric arrays, wherein, side 2 the first delivery hole B1 places are respectively equipped with first flow C, and 2 the second delivery hole B2 places of central authorities are respectively equipped with the second runner F.
Preferably, in above-mentioned electrodialysis spacer, described block board thickness is 0.2-2mm, and the thickness of separator sheets is 0.1-1mm.
Preferably, in above-mentioned electrodialysis spacer, the shape selected from circles of described delivery hole, ellipse or rectangle.
Particularly, in a kind of preferred embodiment of the present utility model, dividing plate of the present utility model is made up of two panels, wherein the shape and size identical (Fig. 1) of every sheet.Each separator sheets comprises: the dividing plate framework A containing two sides, dividing plate framework center K.Described dividing plate framework A comprises the first side J1 and the second side J2.
Delivery hole (the first delivery hole B1 and the second delivery hole B2) is symmetric at dividing plate framework two ends, and often end has the delivery hole of six rectangles; Six delivery holes of delivery hole B1 are numbered 1,2,3,4,5,6; Delivery hole B2 is numbered 1 ', 2 ', 3 ', 4 ', 5 ', 6 '.
First flow C is one group of finedraw that dividing plate framework is cut completely, width 0.1 ~ the 1mm of every bar finedraw, distance between finedraw is 1 ~ 5mm, the length of finedraw is a bit larger tham the half of delivery hole edge M1 and edge, dividing plate framework center first L1 distance, described finedraw is between delivery hole and dividing plate framework center, and its overall width is consistent with the length of delivery hole.Wherein, first flow is in No. 3, delivery hole and No. 6 the insides, and finedraw extends to framework center first edge L1, and namely finedraw is opened on dividing plate framework center.
Second runner F is one group of finedraw that dividing plate framework is cut completely, the width 0.1 ~ 1mm of every bar finedraw, and the distance between finedraw is 1 ~ 5mm, and the length of finedraw is a bit larger tham the half of delivery hole edge M2 and edge, dividing plate framework center second L2 distance.Described finedraw is between delivery hole and dividing plate framework center, and its overall width is consistent with the length of delivery hole.Wherein, first flow is in No. 1 ', delivery hole and 4 ' number the inside, and finedraw extends to delivery hole, and namely finedraw is opened on delivery hole.
First liquid redistributor E and second liquid redistributor D is separately positioned on inside framework center first edge L1 and the second edge L2; The width of described first liquid redistributor E and second liquid redistributor D is 10-20mm, and it is equipped with finedraw, and the width of every bar finedraw is 0.5-3mm, and the length of finedraw is greater than the half of liquid re-distributor width.The utility model electrodialysis spacer respectively adds a liquid re-distributor at the two ends at dividing plate framework center, has good distribution effect to feed liquid.
Two sheet material are placed as shown in Figure 1, then will wherein a slice turn clockwise after 180 °, then two sheet material are stacked together, and finally place flow-guiding screen at dividing plate framework center, just form the said electrodialysis spacer of the utility model, as shown in Figure 2.Fig. 3 is the partial enlarged drawing of Fig. 2.
In the present embodiment, when the liquid flowing through delivery hole enters runner (as shown in Figure 3 a), first by runner that opening is formed at the finedraw of delivery hole; Again after the runner that the finedraw of opening at framework center is formed, enter one end of dividing plate framework central space, and then be with the dividing plate framework core of flow-guiding screen through liquid re-distributor (as shown in Figure 3 b).
The dividing plate receptacle material described in the utility model acid and alkali-resistance polymeric material that normally PP, PE, PVC etc. are conventional, and their mixture.
Block board thickness described in the utility model is usually at 0.5 ~ 1mm, and the thickness of corresponding every sheet is 0.25 ~ 0.5mm.
Dividing plate described in the utility model can use in strong acid, highly basic situation; Serviceability temperature can between 0 ~ 65 DEG C.
Dividing plate designed by the utility model, adjustment runner quantity and position, rotates 180 °, upset, rotates 180 ° of modes such as upset again, go for two Room, three Room and four Room or more by dividing plate.Wherein, described upset refer to by separator sheets be distributed with delivery hole for axle, rotate 180 ° and obtain.
Adopt the technical solution of the utility model, at least there is following beneficial effect:
The utility model electrodialysis spacer selects polymeric material to have certain elasticity, and after being alternately arranged assembling film forming device with amberplex, good airproof performance, what do not leak outside manifests.
The utility model electrodialysis spacer adopts two-piece type structure, makes the amberplex on dividing plate two sides and dividing plate have one section without the contact portion in naked leakage current road, after sealing, can not produce membrane stack internal leak and string liquid phenomenon.
The runner of the utility model electrodialysis spacer is made up of many finedraws, and suitably adds the distance of delivery hole and dividing plate framework central space, and in use parasite current is few.
The utility model electrodialysis spacer respectively adds a liquid re-distributor at the two ends at dividing plate framework center, has good distribution effect to feed liquid.
The utility model electrodialysis spacer with the addition of flow-guiding screen at dividing plate framework center, has good turbulence effects to the liquid flowed through.
The utility model electrodialysis spacer adopts two-piece type structure, and the processing and manufacturing of every a slice is simple, adopts laser cutting machine to reach requirement easily, therefore low cost of manufacture, easy to implement.
Accompanying drawing explanation
Fig. 1 is the first separator sheets structural representation in the utility model embodiment 1, wherein, A is dividing plate framework, B1 is the first delivery hole, B2 is the second delivery hole, C is first flow, F is the second runner, E is first liquid redistributor, D is second liquid redistributor, G is first side runner, H is second side runner, J1 is the first side, J2 is the second side, L1 is edge, framework center first, L2 is edge, framework center second, K is framework center, M1 is the edge of delivery hole B1 near side, framework center, M2 is the edge of delivery hole B2 near side, framework center.
Fig. 2 is the schematic diagram of electrodialysis spacer described in the utility model embodiment 1, wherein, A be in embodiment 1 the stacked rear respective runner of two separator sheets be docked and connected formed runner channel, B be in embodiment 1 the stacked rear respective liquid re-distributor of two separator sheets be docked and connected formed liquid re-distributor passage.
Fig. 3 a is the structure for amplifying schematic diagram of A circulation passage in the utility model Fig. 2.
Fig. 3 b is the finedraw structure for amplifying schematic diagram of B liquid re-distributor passage in the utility model Fig. 2.
Fig. 4 is by the structural representation of gained dividing plate after the upset of the dividing plate of Fig. 2 in the utility model embodiment 1.
Fig. 5 is the structural representation of the third dividing plate formed in the utility model embodiment 1.
Fig. 6 is the first separator sheets structural representation described in the utility model embodiment 2.
Fig. 7 is the schematic diagram of second partition chip architecture described in the utility model embodiment 2.
Fig. 8 is the first separator sheets structural representation described in the utility model embodiment 3.
Fig. 9 a, 9b, 9c, 9d are the structural representation of dividing plate 1 described in the utility model embodiment 3, dividing plate 2, dividing plate 3, dividing plate 4 respectively.
Figure 10 is the arrangement schematic diagram of three Room dividing plates in the utility model embodiment 5.
Detailed description of the invention
The utility model provides a kind of electrodialysis spacer, its good airproof performance, anti-to leak outside, interior leakage, and parasite current is few, have good distribution effect and good turbulence effects, and its process for machining and manufacturing is simple to feed liquid.
Below in conjunction with accompanying drawing and each embodiment, the utility model and Advantageous Effects thereof are described in detail.
Embodiment 1
In one preferred embodiment, described dividing plate is formed by stacking by two separator sheets.Wherein, first separator sheets as shown in Figure 1, dividing plate framework adopts the transparent PVC sheet material that 0.25mm is thick to make, its length is 800mm, width is 400mm, and dividing plate framework two ends have the long first side J1 of 85mm and second side J2, first side J1 and second side J2 to offer delivery hole B1 and B2 of 6 30mm × 20mm respectively respectively, delivery hole B1 is numbered 1,2,3,4,5,6, B2 and is numbered 1 ', 2 ', 3 ', 4 ', 5 ', 6 '.
Delivery hole B1 and B2 is 40mm near the distance of the Edge Distance framework center edge at framework center.As Fig. 1, in No. 3, delivery hole and No. 6 the insides, offer the finedraw of 8 22mm*0.5mm respectively, be opened on dividing plate framework center, opening is towards delivery hole, and the distance between adjacent two finedraw edges is 3.5mm, article 8, the overall width of finedraw is 28.5mm, is slightly less than the length 30mm of delivery hole; As Fig. 1, in 1 ' number and 4' the inside of delivery hole, offer the finedraw of 8 22mm*0.5mm respectively, be opened on delivery hole, opening is towards dividing plate framework center, and the distance between adjacent two finedraw edges is 3.5mm, article 8, the overall width of finedraw is 28.5mm, is slightly less than the length 30mm of delivery hole B.
Framework core is of a size of 630mm*350mm, first side runner G and the second side runner H of wide 10mm is respectively equipped with at distance framework center first edge L1 and L2 place, edge, framework center second, the first liquid redistributor E be set up in parallel respectively with it and second liquid redistributor D, wherein, described side runner G is in order to be communicated with first flow C and first liquid redistributor E, and described side runner H is in order to be communicated with the second runner F and second liquid redistributor D.Described liquid re-distributor E with D is connected with framework A, be the slice of a wide 10mm, offer 16 equidistant 6mm*2mm finedraws above, wherein first liquid redistributor E finedraw is opened on framework center, opening is towards delivery hole, and second liquid redistributor D finedraw opening is towards framework center.
First separator sheets is placed as shown in Figure 1, then turned clockwise after 180 °, obtain second partition sheet, again two sheet material are stacked together, finally placing long at dividing plate framework center is 630mm, and wide is 310mm, and thick is the pp material flow-guiding screen of 0.5mm, just form the said electrodialysis spacer of the utility model, as shown in Figure 2.
The second dividing plate can be obtained, as shown in Figure 4 after being overturn by dividing plate described in Fig. 2.
Change the distribution of first flow and the second runner in Fig. 1 median septum sheet, first flow is made to be opened in No. 2, delivery hole and between No. 5 and framework center, second runner is opened in No. 2 ', delivery hole and between 5 ' number and framework center, form the first new separator sheets, turned clockwise after 180 °, obtain second partition sheet, two panels is stacked together, center arranges flow-guiding screen, obtains the third dividing plate, as shown in Figure 5.
Dividing plate shown in Fig. 2, Fig. 4 and Fig. 5 is applicable to the electric dialyzator of three Room.
Embodiment 2
In one preferred embodiment, described dividing plate is formed by stacking by two separator sheets, wherein, first separator sheets as shown in Figure 6, roughly the same with the separator sheets of Fig. 1 in embodiment 1, difference is only, the second liquid redistributor D opening of the present embodiment first septum is toward delivery hole.
Second partition sheet as shown in Figure 7, roughly the same with the separator sheets of Fig. 1 in embodiment 1, difference is only, the present embodiment second septum delivery hole No. 3 and No. 6 finedraws offered are opened on delivery hole, opening is towards framework center, delivery hole 1 ' and 4 ' number finedraw offered are opened on framework center, and opening is towards delivery hole; The finedraw opening of first liquid redistributor E is towards framework center.
First separator sheets in embodiment 2 and second partition sheet are directly stacked together, finally placing long at dividing plate framework center is 630mm, wide is 310mm, and thick is the pp material flow-guiding screen of 0.5mm, just forms the said electrodialysis spacer (not shown) of the utility model.
Embodiment 3
In one preferred embodiment, described dividing plate is formed by stacking by two separator sheets.Wherein, first separator sheets as shown in Figure 8, dividing plate framework adopts the transparent PVC sheet material that 1mm is thick to make, and its length is 800mm, and width is 400mm, dividing plate framework A two ends have first side J1 and the second side J2 of 85mm respectively, first side J1 and second side J2 offers delivery hole B1 and B2 of 8 22.5mm*20mm respectively, and delivery hole B1 is numbered 1,2,3,4,5,6, and 7,8, B2 is numbered 1 ', 2 ', 3 ', 4 ', 5 ', 6 ', 7 ', 8 '.
Delivery hole B1 and B2 is 40mm near the distance of the Edge Distance framework center edge at framework center.As Fig. 8, in No. 1, delivery hole and No. 2 the insides, offer the finedraw of 8 22mm*0.5mm respectively, be opened on dividing plate framework center, opening is towards delivery hole, and the distance between adjacent two finedraw edges is 2.5mm, article 8, the overall width of finedraw is 21.5mm, is slightly less than the length 22.5mm of delivery hole; As Fig. 8, in 3 ' number and 4' the inside of delivery hole, offer the finedraw of 8 22mm*0.5mm respectively, be opened on delivery hole, opening is towards dividing plate framework center, and the distance between adjacent two finedraw edges is 2.5mm, article 8, the overall width of finedraw is 21.5mm, is slightly less than the length 22.5mm of delivery hole B.
Framework core is of a size of 630mm*350mm, first side runner G and the second side runner H of wide 10mm is respectively equipped with at distance framework center first edge L1 and L2 place, edge, framework center second, the first liquid redistributor E be connected respectively with it and second liquid redistributor D, liquid re-distributor E with D is connected with framework A, it is the slice of a wide 10mm, offer 16 equidistant 6mm*2mm finedraws above, wherein first liquid redistributor E finedraw is opened on framework center, opening is towards delivery hole, and second liquid redistributor D finedraw opening is towards framework center.
The first separator sheets similar shown in second partition sheet and Fig. 8, difference is, No. 1, second partition sheet, No. 2 delivery hole arrange finedraw be opened on delivery hole, the finedraw of 3 ' number, 4 ' number delivery hole is opened on framework center, the finedraw opening of first liquid redistributor E is towards framework center, and the finedraw opening of second liquid redistributor is towards delivery hole.
First separator sheets of embodiment 3 and second partition sheet are directly stacked together, finally placing long at dividing plate framework center is 630mm, and wide is 310mm, and thick is the pp material flow-guiding screen of 0.5mm, just form the said electrodialysis spacer 1 of the utility model, as illustrated in fig. 9.Obtain dividing plate 2 after dividing plate 1 is rotated 180 °, as shown in figure 9b, after being overturn by dividing plate 1, obtain dividing plate 3, as is shown in fig. 9 c, dividing plate 1 is rotated 180 ° again upset after obtain dividing plate 4, as shown in figure 9d.
Embodiment 4
Get 50, above-described embodiment dividing plate, get domestic amberplex (Wenan, Hebei Guang Ya Chemical Co., Ltd., JX-1, JX-2) 50, wherein cation-exchange membrane and each 25 of anion-exchange membrane, size is also 800 × 400mm, forms four Room electrodialysis membrane stacks of 50 groups of films, specific as follows:
Totally 13, dividing plate 1 described in Example 3, as the first cell partitions, totally 13, dividing plate 2 described in Example 3, as the second cell partitions; Totally 12, dividing plate 3 described in another Example 3, as the 3rd cell partitions; Totally 12, dividing plate 4 described in another Example 3, as the 4th cell partitions.Be placed in the middle of electrodialysis pole plate and clamping plate, fastening with stainless steel bolt, bolt steps up torque of wrenches used between 1.5 ~ 2.5N.m.
Add deionized water by the storage tank of electrodialysis four rooms, open the first Room circulating pump, the first Room water sets up circulation, after 30min, second and third, four Room discharging openings do not have current to occur.Close the first Room circulating pump, open the second Room circulating pump, the second Room water sets up circulation, and after 30min, first and third, four Room discharging openings do not have current to occur.Close the second Room circulating pump, open the 3rd Room circulating pump, the 3rd Room water sets up circulation, after 30min, first and second, four Room discharging openings do not have current to occur.Close the 3rd Room circulating pump, open fourth ventricle circulating pump, fourth ventricle water sets up circulation, and after 30min, first, second and third room discharging opening does not have current to occur.In whole experimentation, membrane stack does not have the outside seepage of water.
The above results shows that dividing plate of the present utility model has stopped the interior leakage of membrane stack and the phenomenon that leaks outside.
Embodiment 5
Adopt 50, the dividing plate of above-described embodiment, with domestic homogeneous phase anion/cation exchange membrane (Wenan, Hebei Guang Ya Chemical Co., Ltd., JX-1, JX-2) 800 × 400mm is of a size of, totally 34, wherein, cation-exchange membrane and each 17 of anion-exchange membrane, with domestic Bipolar Membrane (Wenan, Hebei Guang Ya Chemical Co., Ltd., BPM-1), be of a size of 800 × 400mm, totally 16, form three Room electrodialysis membrane stacks of 50 groups of films, specific as follows:
Totally 17, dividing plate 1 described in Example 3, as the first cell partitions, totally 17, dividing plate 2 described in Example 3, as the second cell partitions; Totally 16, dividing plate 3 described in Example 3, as the 3rd cell partitions.Dividing plate, anion and cation exchange membrane, Bipolar Membrane are folded according to the order of Figure 10, be placed in the middle of electrodialysis pole plate and clamping plate, fastening with stainless steel bolt, bolt steps up torque of wrenches used between 1.5 ~ 2.5N.m.
By adding the NaCl solution of 500L10wt% in the storage tank of electrodialysis salt room, in sour room and alkali room, add 500L deionized water.After the foundation to be recycled of ON cycle pump, membrane stack adds 100V DC voltage, initial current is that 10A, 5min after-current reaches 160A, after this adopts constant current operation pattern, stops test after 1h, is 9.8kg with the NaOH that titration measuring generates.Current efficiency is 76%.
Comparative example 1
Adopt domestic industrialized dividing plate (the blue or green bright and beautiful Genie et Environnement of upper seamount) and domestic homogeneous phase anion/cation exchange membrane (Wenan, Hebei Guang Ya Chemical Co., Ltd., JX-1, and Bipolar Membrane (Wenan, Hebei Guang Ya Chemical Co., Ltd. JX-2), BPM-1), by the method that embodiment 5 is identical, form three Room electrodialysis membrane stacks of 50 groups of films, be placed in the middle of electrodialysis pole plate and clamping plate, fastening with stainless steel bolt, bolt steps up torque of wrenches used between 1.5 ~ 2.5N.m.
By adding the NaCl solution of 500L10wt% in the storage tank of electrodialysis salt room, in sour room and alkali room, add 500L deionized water.After the foundation to be recycled of ON cycle pump, membrane stack adds 100V DC voltage, initial current is that 10.6A, 5min after-current reaches 160A, after this adopts constant current operation pattern, stops test after 1h, is 9.2kg with the NaOH that titration measuring generates.Current efficiency is 71%.
Comparing embodiment 5 and comparative example 1 can be found out, current efficiency brings up to 76%, improve the current efficiency of electric dialyzator, and the utility model reaches energy-saving and cost-reducing object.
Can be found out by embodiment and comparative example, dividing plate good airproof performance described in the utility model, without manifesting of leaking outside, the runner of described dividing plate is made up of many finedraws, suitably add the distance at delivery hole and dividing plate framework center, in use parasite current is few, and dividing plate of the present utility model arranges liquid re-distributor, to feed liquid, there is good distribution effect, the flow-guiding screen added has good turbulence effects to the liquid flowed through, in addition, and the utility model low cost of manufacture, easy to implement, be with a wide range of applications.
Claims (11)
1. an electrodialysis spacer, the separator sheets being provided with delivery hole by side is made, described separator sheets comprises two sides, dividing plate framework center and is located at the flow-guiding screen at dividing plate framework center, it is characterized in that, this dividing plate comprises the separator sheets of more than 2 overlaps, described delivery hole in each separator sheets is more than 2, is provided with liquid re-distributor, is provided with more than one runner between delivery hole and liquid re-distributor at dividing plate framework center near described pendant positions.
2. electrodialysis spacer according to claim 1, described liquid re-distributor comprises first liquid redistributor (E) and second liquid redistributor (D), be separately positioned on the close framework central side in edge, framework center first (L1) and edge, framework center second (L2), wherein, described dividing plate framework center (K) is respectively edge, framework center first (L1) and edge, framework center second (L2) near the border of the first side (J1) and the second side (J2).
3. electrodialysis spacer according to claim 1, the runner of described separator sheets comprises first flow (C) and the second runner (F), described delivery hole comprises the first delivery hole (B1) and the second delivery hole (B2), and be set in parallel on the first side (J1) and the second side (J2) respectively, described first flow (C) is one group of finedraw being arranged between the first delivery hole (B1) and edge, framework center first (L1), the length of described finedraw is less than the edge (M1) of the first delivery hole (B1) close to framework center and the spacing at edge, framework center first (L1), and the half of large during the period distance,
Described second runner (F) is one group of finedraw being arranged between the second delivery hole (B2) and edge, framework center second (L2), the length of described finedraw is less than the edge (M2) of the second delivery hole (B2) close to framework center and the spacing at edge, framework center second (L2), and the half of large during the period distance.
4. electrodialysis spacer according to claim 2, described first liquid redistributor (E) is provided with one group of finedraw, and the length of described finedraw is less than the width of first liquid redistributor (E), and is greater than the half of this width; Described second liquid redistributor (D) is provided with one group of finedraw, and the length of described finedraw is less than the width of second liquid redistributor (D), and is greater than the half of this width.
5. electrodialysis spacer according to claim 3, the finedraw of described first flow (C) extends to the first delivery hole (B1) or edge, framework center first (L1), and the finedraw of described second runner (F) extends to the second delivery hole (B2) or edge, framework center second (L2).
6. the electrodialysis spacer according to Claims 2 or 3, is provided with first side runner (G) between edge, described framework center first (L1) and first liquid redistributor (E); Second side runner (H) is provided with between edge, described framework center second (L2) and second liquid redistributor (D).
7. electrodialysis spacer according to claim 3, wherein, the finedraw width of described first flow (C) and the second runner (F) is 0.1-1mm, and the distance between finedraw is 1-5mm.
8. electrodialysis spacer according to claim 1, wherein, this dividing plate comprises 2 separator sheets, and these 2 separator sheets stack according to the mode opposite layer making respective runner, liquid re-distributor is docked and connected respectively.
9. the electrodialysis spacer according to claim 1 or 8, wherein, described dividing plate is electrodialysis four Room dividing plate, wherein, described delivery hole comprises the first delivery hole (B1) and the second delivery hole (B2), and be set in parallel on the first side (J1) and the second side (J2) respectively, first delivery hole (B1) and second delivery hole (B2) of the separator sheets of described dividing plate are all set to 8, difference linearly symmetric arrays, wherein, side 2 the first delivery hole (B1) places are respectively equipped with first flow (C), 2 the second delivery hole (B2) places of central authorities are respectively equipped with the second runner (F).
10. electrodialysis spacer according to claim 1, wherein, described block board thickness is 0.2-2mm, and the thickness of separator sheets is 0.1-1mm.
11. electrodialysis spacers according to claim 1, the shape selected from circles of described delivery hole, ellipse or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542374.1U CN204093319U (en) | 2014-09-18 | 2014-09-18 | Electrodialysis spacer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420542374.1U CN204093319U (en) | 2014-09-18 | 2014-09-18 | Electrodialysis spacer |
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| CN204093319U true CN204093319U (en) | 2015-01-14 |
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| CN201420542374.1U Expired - Fee Related CN204093319U (en) | 2014-09-18 | 2014-09-18 | Electrodialysis spacer |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310951A (en) * | 2015-06-18 | 2017-01-11 | 孟海乐 | Electrodialysis separator plate |
| CN110550787A (en) * | 2019-08-20 | 2019-12-10 | 生态环境部华南环境科学研究所 | Desalting treatment equipment and method for fertilizer utilization of cow breeding wastewater |
-
2014
- 2014-09-18 CN CN201420542374.1U patent/CN204093319U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310951A (en) * | 2015-06-18 | 2017-01-11 | 孟海乐 | Electrodialysis separator plate |
| CN106310951B (en) * | 2015-06-18 | 2020-08-14 | 孟海乐 | Electrodialysis membrane pair |
| CN110550787A (en) * | 2019-08-20 | 2019-12-10 | 生态环境部华南环境科学研究所 | Desalting treatment equipment and method for fertilizer utilization of cow breeding wastewater |
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Granted publication date: 20150114 Termination date: 20210918 |