CN2805895Y - Electrodialysis equipment of separation film device for chemical engineering - Google Patents
Electrodialysis equipment of separation film device for chemical engineering Download PDFInfo
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- CN2805895Y CN2805895Y CN 200520015796 CN200520015796U CN2805895Y CN 2805895 Y CN2805895 Y CN 2805895Y CN 200520015796 CN200520015796 CN 200520015796 CN 200520015796 U CN200520015796 U CN 200520015796U CN 2805895 Y CN2805895 Y CN 2805895Y
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- membrane
- dividing plate
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Abstract
The utility model relates to an electrodialysis apparatus of a separation film device for chemical engineering. The utility model comprises a plurality of membrane stacks, a combination type electrode and a tightly pressing device, wherein each membrane stack is formed by that a cation exchange membrane, a concentrated chamber partition plate, an anion exchange membrane, a desalting chamber partition plate the combination type electrodes are respectively arranged at both sides of each membrane stack, a plurality of membrane stacks are combined, are orderly arranged and are fastened into a whole by the tightly pressing device. The structure of each enriched chamber partition plate is similar with that of each desalting chamber partition plate, the center parts are provided respectively with a flow passage supporting net and the periphery parts are respectively provided with a partition plate frame. The utility model has the advantages that the number of the membrane stacks and the treating capacity of the single apparatus can be improved, when a plurality of membrane pairs are assembled, the unevenness of the water flow distribution can be prevented; the utility model also has the advantages of convenient examination, convenient maintenance, convenient operation management, compact structure, beautiful appearance, reasonable structure and small ground occupation. The utility model can be used for the desalinization treatment, the purification treatment and the concentrated treatment of biologic chemical industries, pharmacies and food industries. The organic matter content in waste water can be reduced, and the environmental pollution can be reduced.
Description
Technical field
The utility model relates to a kind of chemical separating equipment, is meant a kind of chemical industry desalination especially, concentrates with diffusion barrier device electrodialysis plant.
Background technology
In fermentation industry, adopt ion-exchange desalination, complex operation, production cost height usually; The water treatment electric dialyzator that utilizes that has carries out desalination, and used heterogeneous membrane selects permeability poor, and dividing plate and intermembranous sealing are relatively poor, cause membrane stack seepage, intermembranous string water, cause material loss and environmental pollution, have reduced the material yield, have influenced desalting effect.Existing chemical industry desalination electrodialysis plant generally adopts pressure strip to clamp the assembling form of membrane stack, and the assembling film logarithm is restricted, be not easy to like this install, overhaul, the inhomogeneities that also can cause current to distribute is if increase the platform number of equipment, floor space is big like this, makes troubles to operational management.
Summary of the invention
The purpose of this utility model is to provide a kind of employing homogeneous ion-exchange membrane, and is arranged in order by a plurality of membrane stacks and assembles, and each membrane stack is again relatively independent execution chemical industry desalination, concentrated diffusion barrier device electrodialysis plant.It has improved the membrane stack quantity and the disposal ability of single device, and the inhomogeneities that current distribute when having prevented multimembrane to assembling is convenient to inspection, maintenance and operational management; Compact equipment, attractive in appearance reasonable, floor space is little, is convenient to centralized management.
The purpose of this utility model is realized that by following technical scheme it comprises a plurality of membrane stacks, combined electrode and hold down gag.
Described a plurality of membrane stack is made up of 2-20 membrane stack, and each membrane stack is alternately arranged by cation-exchange membrane, enriched chamber's dividing plate, anion-exchange membrane, desalting chamber's dividing plate and formed.
Described combined electrode is made up of combined type positive electrode and combined type negative electrode, is contained in the membrane stack both sides respectively.Combined type positive electrode and combined type negative electrode constitute by electrode material, weather board and electrode chamber, and electrode material and electrode chamber all place in the weather board; The both sides weather board is provided with the liquid-in pipe and the drain pipe of desalinization liquor and concentrate, the liquid-in pipe of anolyte and catholyte and drain pipe, positive-negative power binding post.
Described membrane stack and combined electrode are fastening in advance by inner bolt to be an integral body, becomes independently desalter.
Described hold down gag is made up of head, tail, movable screw mandrel, transmission device, frame, and the membrane stack that a plurality of both sides is equipped with combined electrode is arranged in order within frame, places between head, the tail, is tightened to one with movable screw mandrel, transmission device.
Described enriched chamber dividing plate and desalting chamber's dividing plate, its centre is the fluid course supporting network, the periphery position is the dividing plate frame, and the upper and lower position of dividing plate frame is respectively equipped with liquid inlet/outlet and joins liquid collecting hole, joins between liquid collecting hole and the upper and lower position of fluid course supporting network to be respectively equipped with cloth liquid bath runner.Cloth liquid bath runner is a covered conduit cylinder hole shape, can prevent effectively that depression from appearring in exchange membrane.Though enriched chamber's dividing plate is identical with desalting chamber dividing plate structure, owing to join liquid collecting hole with cloth liquid bath runner has symmetry, when therefore assembling, a forward, one is reverse, can distinguish its enriched chamber's dividing plate and desalting chamber's dividing plate.
The dividing plate frame of enriched chamber's dividing plate and desalting chamber's dividing plate is by acid-alkali-corrosive-resisting, resistance to oxidation, and has certain flexibility and flexible plastics or rubber plate and make, and its thickness is the 0.5-3 millimeter, and supporting network can be mesh grid, strand knitmesh or the extruded net of plastics.
Described homogeneous ion-exchange membrane has cation-exchange membrane, anion-exchange membrane, bipolar amberplex, specific ion exchange membrane etc.The difference of the kind of film, the degree of cross linking of film or molecular cut off directly influences the separation function of film device, promptly influences the desalination function of film device and the loss amount of organic materials.
In sum, in the membrane stack of the present utility model, anion-exchange membrane or cation-exchange membrane all can be changed to bipolar amberplex, promptly form the combination of cation-exchange membrane and bipolar amberplex or the combination of anion-exchange membrane and bipolar amberplex, can make some salt be converted into corresponding acid, alkali like this.
The utility model has the advantages that: it has improved the membrane stack quantity and the disposal ability of single device, and the inhomogeneities that current distribute when having prevented multimembrane to assembling is convenient to inspection, maintenance and operational management; Compact equipment, attractive in appearance reasonable, floor space is little, is convenient to centralized management.
The utility model can be used for the desalination in the fermentation industry production technology; the desalination of biochemical industry and pharmaceuticals industry, food industry, purifying and concentration remove inorganic salts from chemicals production mother liquor, waste liquid, reclaim organic materials; reduce the content of organics of waste liquid, help environmental protection.
Description of drawings
Fig. 1 is the structural representation of chemical separating film device electrodialysis plant
Fig. 2 is the three-dimensional decomposition texture schematic diagram of membrane stack
Fig. 3 is enriched chamber's dividing plate perspective view
Fig. 4 is a cloth liquid bath runner A-A cross-sectional view
Fig. 5 is electrodialysis desalination, concentration principle figure
Wherein: R is that non-electrolyte, MX are electrolyte
Fig. 6 is weak acid organic salt hydrolysis separation principle figure
Wherein: NaA is that acylate, HA are organic acid
The specific embodiment
Embodiment 1
The described a kind of chemical separating film device electrodialysis plant of present embodiment, it comprises 12 membrane stacks, combined electrode and hold down gag, and described each membrane stack (5) is alternately to be arranged by cation-exchange membrane (7), enriched chamber's dividing plate (8), anion-exchange membrane (9), desalting chamber's dividing plate (10) to form;
Described combined electrode is made up of combined type positive electrode (4) and combined type negative electrode (6), is contained in each membrane stack both sides respectively, and fastening with inner bolt (24) is an integral body, is convenient to install, dismantle, and has independently desalination, concentrating function.Combined type positive electrode (4) and combined type negative electrode (6) constitute by electrode material, weather board and electrode chamber, and electrode material and electrode chamber all place in the weather board (16); Both sides weather board (16) is provided with liquid-in pipe (21), (14) and drain pipe (20), (26) of desalinization liquor and concentrate, the liquid-in pipe of anolyte and catholyte (15), (22) and drain pipe (19), (25), positive-negative power binding post (18), (23); The inner central section position of both sides weather board (16) is electrode chamber (17).
Described hold down gag is made up of head (11), tail (2), movable screw mandrel (12), transmission device (13), frame (1), the membrane stack that combined electrode is equipped with in 12 both sides is arranged in order within frame (1), place between head (11), the tail (2), the centre accompanies backing plate (3), is tightened to one with movable screw mandrel (12), transmission device (13).
Described enriched chamber dividing plate (8) and desalting chamber's dividing plate (10), its centre is fluid course supporting network (30), the periphery position is dividing plate frame (31), the upper and lower position of dividing plate frame (31) is respectively equipped with liquid inlet/outlet (27) and joins liquid collecting hole (28), joins between liquid collecting hole (28) and the upper and lower position of fluid course supporting network (30) to be respectively equipped with cloth liquid bath runner (29).Cloth liquid bath runner (29) is a covered conduit cylinder hole shape, can prevent effectively that depression from appearring in exchange membrane.Enriched chamber's dividing plate (8) and desalting chamber's dividing plate (10) be though structure is identical, owing to join liquid collecting hole with cloth liquid bath runner has symmetry, so when assembling, a forward, a reversed arrangement can be distinguished its enriched chamber's dividing plate and desalting chamber's dividing plate.
The dividing plate frame of enriched chamber's dividing plate (8) and desalting chamber's dividing plate (10) is by acid-alkali-corrosive-resisting, resistance to oxidation, and has certain flexibility and flexible plastic plate is made, and its thickness is 1 millimeter, and supporting network is the strand knitmesh of plastics.
Operation principle is as follows: the mixed solution and the concentrate of (as shown in Figure 5) zymotic fluid or other organic materials and inorganic salts, enter enriched chamber (8 '), desalting chamber (10 ') by liquid-entering hole (21), (14) respectively, feeding under the galvanic condition, combined type positive electrode, the work of combined type negative electrode, inorganic salts cation M
+With anion X
-Respectively by cation-exchange membrane (7) and anion-exchange membrane (9), and desalting chamber (10 ') salt is reduced, the salinity of enriched chamber (8 ') increases, and organic materials is a non-electrolyte, can not pass through amberplex, and stay in the desalting chamber (10 '), reaching the purpose of separating of inorganic salts and organic substance, desalinization liquor, concentrate are discharged by drain pipe (20), (26) respectively.
The desalination of described electrodialysis desalination, particularly organic materials, the electrolyte-inorganic salts that are about in the non-electrolytic solution remove, and make organic materials obtain purifying.
The described a kind of chemical separating film device electrodialysis plant of present embodiment, it comprises 10 membrane stacks, combined electrode and hold down gag, described each membrane stack is alternately to be arranged by cation-exchange membrane (7), former liquid chamber dividing plate, bipolar amberplex (32), alkali chamber dividing plate to form, and the structure of former liquid chamber dividing plate and alkali chamber dividing plate is identical with the structure of desalting chamber's dividing plate and enriched chamber's dividing plate; Other structure is all with embodiment 1.
Operation principle is as follows: (as shown in Figure 6) stoste enters former liquid chamber (33), H
2O or sig water enter alkali chamber (34), and water enters in the Bipolar Membrane (32), and under the DC electric field effect, water decomposition is H
+, OH
-, and, arrive former liquid chamber (33) and alkali chamber (34) respectively by anode membrane layer and cavity block layer, at former liquid chamber (33) owing to being subjected to DC electric field effect, metal ion Na
+See through anode membrane (7) and enter alkali chamber (34), and the acid group A that stays
-Move the H that comes with Bipolar Membrane
+Be combined into acid; And in alkali chamber (34) owing to constantly obtain the metal ion Na of former liquid chamber (33)
+With the OH that comes from the Bipolar Membrane migration
-Be combined into corresponding alkali.
Claims (8)
1, a kind of chemical separating film device electrodialysis plant, it comprises a plurality of membrane stacks, combined electrode and hold down gag, it is characterized in that described a plurality of membrane stack is made up of 2-20 membrane stack, each membrane stack is alternately arranged by cation-exchange membrane, enriched chamber's dividing plate, anion-exchange membrane, desalting chamber's dividing plate and is formed; Described combined electrode is made up of combined type positive electrode and combined type negative electrode, is contained in the membrane stack both sides respectively; Combined type positive electrode and combined type negative electrode constitute by electrode material, weather board and electrode chamber, and electrode material and electrode chamber all place in the weather board; Described hold down gag is made up of head, tail, movable screw mandrel, transmission device, frame, and the membrane stack that a plurality of both sides is equipped with combined electrode is arranged in order within frame, places between head, the tail, is tightened to one with movable screw mandrel, transmission device; Described enriched chamber dividing plate and desalting chamber's dividing plate, its centre is the fluid course supporting network, the periphery position is the dividing plate frame, and the upper and lower position of dividing plate frame is respectively equipped with liquid inlet/outlet and joins liquid collecting hole, joins between liquid collecting hole and the upper and lower position of fluid course supporting network to be respectively equipped with cloth liquid bath runner.
2, chemical separating film device electrodialysis plant as claimed in claim 1, it is characterized in that membrane stack and combined electrode fastening by inner bolt be an integral body.
3, chemical separating film device electrodialysis plant as claimed in claim 1 is characterized in that the both sides weather board is provided with the liquid-in pipe and the drain pipe of desalinization liquor and concentrate, the liquid-in pipe of anolyte and catholyte and drain pipe, positive-negative power binding post.
4, chemical separating film device electrodialysis plant as claimed in claim 1 is characterized in that cloth liquid bath runner is a covered conduit cylinder hole shape.
5, chemical separating film device electrodialysis plant as claimed in claim 1, the dividing plate frame that it is characterized in that enriched chamber's dividing plate and desalting chamber's dividing plate is by acid-alkali-corrosive-resisting, resistance to oxidation, and have certain flexibility and flexible plastics or rubber plate and make, its thickness is the 0.5-3 millimeter.
6, chemical separating film device electrodialysis plant as claimed in claim 1 is characterized in that supporting network is mesh grid, strand knitmesh or the extruded net of plastics.
7, chemical separating film device electrodialysis plant as claimed in claim 1 is characterized in that the anion-exchange membrane in each membrane stack is changed to bipolar amberplex.
8, chemical separating film device electrodialysis plant as claimed in claim 1 is characterized in that the cation-exchange membrane in each membrane stack is changed to bipolar amberplex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015796 CN2805895Y (en) | 2005-04-29 | 2005-04-29 | Electrodialysis equipment of separation film device for chemical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520015796 CN2805895Y (en) | 2005-04-29 | 2005-04-29 | Electrodialysis equipment of separation film device for chemical engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2805895Y true CN2805895Y (en) | 2006-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520015796 Expired - Lifetime CN2805895Y (en) | 2005-04-29 | 2005-04-29 | Electrodialysis equipment of separation film device for chemical engineering |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880118A (en) * | 2014-03-13 | 2014-06-25 | 亿丰洁净科技江苏股份有限公司 | Wastewater treatment device for laboratory |
| CN106139908A (en) * | 2015-05-11 | 2016-11-23 | Agc工程株式会社 | Filter press-type electrodialysis plant |
| CN106178956A (en) * | 2015-05-29 | 2016-12-07 | Agc工程株式会社 | Filter press-type diffusion dialysis device |
| CN106345304A (en) * | 2016-11-16 | 2017-01-25 | 中国科学院青海盐湖研究所 | Cathodic solution protection type electrodialysis device |
| CN108911059A (en) * | 2018-07-14 | 2018-11-30 | 浙江大维高新技术股份有限公司 | A kind of electric dialyzator |
-
2005
- 2005-04-29 CN CN 200520015796 patent/CN2805895Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103880118A (en) * | 2014-03-13 | 2014-06-25 | 亿丰洁净科技江苏股份有限公司 | Wastewater treatment device for laboratory |
| CN106139908A (en) * | 2015-05-11 | 2016-11-23 | Agc工程株式会社 | Filter press-type electrodialysis plant |
| CN106178956A (en) * | 2015-05-29 | 2016-12-07 | Agc工程株式会社 | Filter press-type diffusion dialysis device |
| CN106345304A (en) * | 2016-11-16 | 2017-01-25 | 中国科学院青海盐湖研究所 | Cathodic solution protection type electrodialysis device |
| CN108911059A (en) * | 2018-07-14 | 2018-11-30 | 浙江大维高新技术股份有限公司 | A kind of electric dialyzator |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150429 Granted publication date: 20060816 |