CN1133592C - Multi-stage electric capacitance deionizer - Google Patents
Multi-stage electric capacitance deionizer Download PDFInfo
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- CN1133592C CN1133592C CNB011296232A CN01129623A CN1133592C CN 1133592 C CN1133592 C CN 1133592C CN B011296232 A CNB011296232 A CN B011296232A CN 01129623 A CN01129623 A CN 01129623A CN 1133592 C CN1133592 C CN 1133592C
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical class C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 11
- 230000008676 import Effects 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 30
- 239000003990 capacitor Substances 0.000 abstract description 18
- 238000002242 deionisation method Methods 0.000 abstract description 11
- 150000002500 ions Chemical class 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 8
- 239000000243 solution Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 230000004888 barrier function Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 229910052799 carbon Inorganic materials 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 239000008399 tap water Substances 0.000 description 5
- 235000020679 tap water Nutrition 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 238000010612 desalination reaction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000748 compression moulding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000011017 operating method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000002152 aqueous-organic solution Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
The present invention relates to a deionization device with multilevel capacitors, which comprises end plates and electrode units, wherein the electrode units are multilevel, and each electrode unit comprises two collecting electrodes, two pads and one electrode frame. The collecting electrodes, the pads, the electrode frame, the pads and the collecting electrodes are orderly overlapped with an insulated bolt through a pylome and then are penetrated between the end plates. The pads and the electrode frame are frame shapes. Working electrodes, separator plates and working electrodes are orderly arranged in the space of the frame which is formed by the pads and the electrode frame. The device has the advantages that the device has a compact structure, liquid flow paths can be connected in series as well as in parallel in the same device to enhance the removal rate of ions, and the device can be used for removing or concentrating ion material in the liquid.
Description
Technical field
The present invention relates to a kind of multi-stage electric capacitance deionizer, in industries such as chemical industry, environment, pharmacy, food, semi-conductor, be used for the removal of the aqueous solution or organic solution intermediate ion material or concentrate the genus technical field of chemical.
Background technology
Existing patent about capacitor deionizing instrument has: United States Patent (USP) 5192432 and JP94-325983.What these patents were related all is single stage system.During practical application, in order to reach higher separating effect, use often will be together in series multiple arrangement.Not only floor space is bigger for placed in-line like this device, and causes very big waste on device materials.In addition, the multilevel device that U.S. Pat 5425858 is provided, the internal liquid stream is fixed, and lacks flexibility of operation, and owing to have the liquid hole on its collector electrode, causes treatment effect to descend.
Summary of the invention
The objective of the invention is to design a kind of multi-stage electric capacitance deionizer, overcome the shortcoming of prior art, make the simple in structure and compact of deionizer, both can connect also can be in parallel for liquid flow path in the same device, improve the ion remaval rate, can also remove the effects of ion material or concentrate with this device.
The multi-stage electric capacitance deionizer of the present invention's design comprises end plate and electrode unit, and electrode unit is multistage, and a plurality of electrode units place between two end plates successively.Each electrode unit comprises two collector electrodes, two pads and an electrode frame; Four bights of end plate, collector electrode, pad and electrode frame respectively have through hole, and collector electrode, pad, electrode frame, pad, collector electrode are through between the end plate after with its closed assembly by through hole by insulating bolt successively.Pad and electrode frame are shaped as frame, in the space, are provided with activated carbon electrodes, dividing plate and activated carbon electrodes successively in the frame that both form; The outside of two side direction frameworks of described electrode frame is provided with upper and lower import and export.
One convex part is arranged, to be used to connect lead on the collector electrode of said apparatus.
The multi-stage electric capacitance deionizer of design of the present invention, its end plate quantity is identical with the single-stage capacitor deionizing instrument, has only two; And the capacitor deionizing instrument of a N level only needs (N+1) piece collector electrode.Therefore adopt multi-stage electric capacitance deionizer of the present invention can save wide variety of materials, reduce the cost of equipment greatly, and equipment is very compact, floor space is little.
The collector electrode of each electrode unit can be by positive and negative, positive and negative in the multi-stage electric capacitance deionizer of the present invention ... or it is negative, positive, negative, positive ... order be together in parallel, also only the collector electrode at the outermost two ends connects positive and negative electrode respectively and connects use.When electrode was in parallel, power supply only need provide lower voltage, but relatively large electric current will be provided, and when electrode was connected, power supply only need provide less current, but relative higher voltage will be provided.
In the multi-stage electric capacitance deionizer of the present invention in each electrode unit the liquid inlet and outlet on the electrode frame can be together in series in order by the liquid conduit, at this moment processed liquid will sequential flow be crossed each electrode unit, once better by separating effect, but the treatment solution flow is less, also can be together in parallel, at this moment processed liquid will flow through each electrode unit simultaneously, and is once relatively poor by separating effect, but the treatment solution flow is bigger.
Description of drawings
Fig. 1 is the structural representation of the deionizer that designs of the present invention.
Fig. 2 is the structural representation of first electrode unit of left end in the device
Fig. 3 is the user mode figure of deionizer.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is two kinds of different deionization process flow sheets with Fig. 6.
Fig. 7 to Figure 10 is the application example design sketch of apparatus of the present invention.
Embodiment
Below in conjunction with accompanying drawing, introduce content of the present invention in detail.
Among Fig. 1 to Fig. 6, the 1st, end plate, the 2nd, collector electrode, the 3rd, pad, the 4th, electrode frame, the 5th, working electrode, the 6th, barrier film, the 7th, liquid in-out pipe, the 8th, circular perforations, the 9th, bolt, the 10th, liquid conduit, the 11st, former liquid storage tank, the 12nd, liquid pump, the 13rd, device of the present invention, the 14th, specific conductivity detection cell, the 15th, control valve, the 16th, the deionization flow container, the 17th, concentrate flow container, the 18th, direct supply.
Below be example with three grades of capacitor deionizing instruments, multi-stage electric capacitance deionizer of the present invention is described
Fig. 1 is three grades of capacitor deionizing instrument sectional views.
The first step that begins with right end plate is an example, and its structure and erection sequence are as shown in Figure 2.
The structure of each grade is: in the both sides of barrier film 6 configuration activated carbon electrodes 5,5, the electrode frame 4 of packing into, at the both sides of electrode frame 4 configuration pad 3,3, then at activated carbon electrodes 5,5 and the outside config set electrode 2,2 (the public collector electrode of adjacent two-stage) of pad 3,3.At last at the left side configuration end plate 1,1 of the left side collector electrode of the right side of the right side of first step collector electrode and last step.That barrier film 6 adopts filter paper, porous polymeric membranes, sponges, weaves cotton cloth, tNonwovens etc. has an electrical insulating property but thin slice that liquid can pass through, the about 0.02-3mm of thickness.Activated carbon electrodes 5 adopts active carbon with high specific surface area.So-called active carbon with high specific surface area is meant that the BET specific surface area is at 1000m
2The gac that/g is above.And the form of gac can be a powdery, granular or fibrous.When using powdery or granular carbon, generally to add a spot of caking agent, compression moulding, and carry out suitable thermal treatment.The thickness of activated carbon electrodes is about 0.1-5mm.Collector electrode 2 adopts copper coin, aluminium sheet, carbon plate or the graphite cake etc. with excellent conductive performance, and thickness is mainly decided on the intensity and the processibility of material, is generally 0.1-3mm.Collector electrode upside or left side or right side have a fritter outstanding, outside being exposed to after the assembling, so that connect conductor wire.Pad 3 adopts elasticity rubber making preferably, thickness 1-2mm.Electrode frame 4 adopts nonconducting and material that have a higher-strength such as plastics or synthetic glass to make.The interior space that the interior sky of electrode frame 4 adds Upper gasket 3 can just hold two pieces of activated carbon electrodes and one piece of barrier film.The one side top and the opposite side below of electrode frame 4 are respectively equipped with liquid in-out pipe 7.During actual the use, in order to get rid of the remaining bubble of possibility in the electrode frame, generally will be from the below feed liquor, from the top fluid.End plate 1 adopts nonconducting high-strength material (as igelite, the carbon steel of handling through insulating or stainless steel etc.) to make, and the stress when thickness assembles bearing is as the criterion, and deformation does not take place in the time of promptly will guaranteeing to assemble.On the same orientation of end plate 1, collector electrode 2, pad 3 and electrode frame 4, have the circular perforations 8 of proper amt as required, be used for bolting.Each parts press the series arrangement of Fig. 1 good after, fixing with bolt 9, promptly obtain a complete capacitor deionizing instrument.For metal bolts, cause short circuit with direct contact of collector electrode for fear of bolt, must carry out insulation processing to bolt.The method of insulation processing comprises with insulation tape winding or insullac coating etc.
Solution deionization mode has two kinds: once by type with cycle through type.
Figure 5 shows that once by type capacitive deionization system schematic.Processed solution is delivered to capacitor deionizing instrument 13 by former liquid storage tank 11 continuously through liquid-feeding pump 12, and effluent liquid is delivered to deionization flow container 16 or concentrated flow container 17 by control valve 15 after specific conductivity detection cell 14 is measured specific conductivity.In deionising process, direct supply 18 provides specified voltage to capacitor deionizing instrument, and the deionization liquid that obtains enters deionization flow container 16.When electric capacity reaches charging saturated (specific conductivity that is the capacitor deionizing instrument effluent liquid is near stoste), cut off the electricity supply, and the electrode of capacitor deionizing instrument is implemented short circuit, make capacitor discharge, promptly obtain concentrated solution (enter and concentrate flow container 17).After discharge process is finished, just enter next working cycle.
Figure 6 shows that and cycle through type capacitive deionization system schematic.Processed solution is delivered to capacitor deionizing instrument 13 by former liquid storage tank 11 through liquid-feeding pump 12, and effluent liquid returns former liquid storage tank, measures the variation of electrical conductivity of solution in the former liquid storage tank and can hold the deionization effect.In deionising process, direct supply 18 provides specified voltage to capacitor deionizing instrument.When electric capacity reaches charging saturated is when electrical conductivity of solution is constant substantially in the former liquid storage tank, the solution in the former liquid storage tank to be delivered to deionization flow container 16.Replenish stoste to former liquid storage tank then, cut off the electricity supply, and the electrode of capacitor deionizing instrument is implemented short circuit, make capacitor discharge, promptly obtain concentrated solution, concentrated solution is delivered to and is concentrated flow container 17.After discharge process is finished, just enter next working cycle.
Embodiment 1:
Employing physical dimension is 5 of the synthetic glass electrode frame that 100mm * 100mm * 5mm, interior sky are of a size of 80mm * 80mm * 5mm, and 10 pieces (specific surface area of activated carbon fiber is 1500m to 80mm * 80mm * 3.5mm activated carbon fiber felt electrode
2/ g, amount to 11.3g), 80mm * 80mm * 5 pieces of physical dimension of 2mm sponge barrier film and interior empty size are respectively 10 pieces on the silicon rubber pad of 100mm * 100mm * 2mm and 80mm * 80mm * 2mm, 6 pieces of 105mm * 100mm * 2mm graphite cake collector electrode, 2 of 100mm * 100mm * 10mm polyvinyl chloride end plate, assemble with upper-part in order, and fixing with 4 bolts (insulating) with insulation tape, make 5 grades of capacitor deionizing instruments.
Embodiment 2:
To be 100mm * 100mm * 5mm, interior empty size one be 10 of the synthetic glass electrode frame of 80mm * 80mm * 4mm to employing physical dimension, and 20 pieces (specific surface area is 1000m to 80mm * 80mm * 3mm active carbon forming electrode
2The Powdered Activated Carbon 85%+ tetrafluoroethylene 10%+ carbon black 5% of/g, after the appropriate solvent dispersing and mixing, compression moulding), 10 pieces of 80mm * 80mm * 2mm sponge barrier film, physical dimension is 20 pieces on the silicon rubber pad of 100mm * 100mm * 2mm, interior empty size 80mm * 80mm * 2mm, 11 pieces of 105mm * 100mm * 2mm graphite cake collector electrode, 2 of 100mm * 100mm * 10mm vinylchlorid end plate, assemble in order with upper-part, and fixing with 4 bolts (insulating) with insulation tape, make 10 grades of capacitor deionizing instruments
Embodiment 3:
Utilize the multistage deionizer of embodiment (1), with the series connection of liquid stream, collector electrode also adopts and is connected in series.Employing cycles through the desalting tap water that the type operating method is 26.9mS/m to 1.1 liters of specific conductivity, and flow velocity adopts 3ml/min.At first multistage deionizer is applied the direct current of 5.1V, after about 10 hours, electrical conductivity of water is reduced to 15.2mS/m, again voltage is risen to 10.1V, and specific conductivity continues to descend, and by the 25th hour, has reduced to 6.3mS/m.After this, stop to multistage deionizer power supply, and implement short circuit, make its discharge, ion is discharged back in the solution.After about 2 hours, the specific conductivity of solution returns to the level of stoste substantially.Specific conductivity over time as shown in Figure 7.
Embodiment 4:
Utilize the multistage deionizer of embodiment (1), liquid stream is in parallel, and collector electrode also adopts and is connected in parallel.The sodium chloride aqueous solution that it is 28.8mS/m to 1.1 liters of specific conductivity that employing cycles through the type operating method carries out desalination, and flow velocity adopts 6ml/min.At first multistage deionizer is applied the direct current of 1.1V, after about 10 hours, the specific conductivity of solution is reduced to 14.2mS/m, and after this specific conductivity remains unchanged substantially.Again voltage is risen to 2.1V, specific conductivity continues to descend, and after about 10 hours, reduces to 6.6mS/m.After this, stop to multistage deionizer power supply, and implement short circuit, make its discharge, ion is discharged back in the solution.After about 2 hours, the specific conductivity of solution returns to the level of stoste substantially.In this operating process, electrical conductivity of solution over time as shown in Figure 8.
Embodiment 5:
Utilize the multistage deionizer of embodiment (1), with the series connection of liquid stream, and the collector electrode employing is connected in parallel.Adopting once by the type methodology is that the tap water of 26.0mS/m carries out desalination to specific conductivity, and tap water is sent into deionizer continuously with the constant rate of 3ml/min.When the stable conductivity of device water outlet during, apply the direct current of 2V to deionizer in the 26.0mS/m left and right sides.After the energising, device goes out electrical conductivity of water and descends rapidly, reaches bottom out again behind the minimum value 13.2mS/m.When device goes out electrical conductivity of water and rises to the 24mS/m left and right sides, stop power supply, and will go up the electric pole short circuit of ion unit.After this, device goes out electrical conductivity of water and raises rapidly, reaches to begin again behind the maximum value 37.0mS/m to descend.Device goes out electrical conductivity of water over time as shown in Figure 9.
Embodiment 6:
Utilize the multistage deionizer of embodiment (2), with the series connection of liquid stream, collector electrode also adopts and is connected in series.Adopting once by the type methodology is that the tap water of 26.8mS/m carries out desalination to specific conductivity, and tap water is sent into deionizer continuously with the constant rate of 3ml/min.When the stable conductivity of device water outlet during, apply the direct current of 18V to deionizer in the 26.8mS/m left and right sides.After the energising, device goes out electrical conductivity of water and descends rapidly, reaches bottom out again behind the minimum value 6.4mS/m.When device goes out electrical conductivity of water and rises to the 25mS/m left and right sides, stop power supply, and with the electric pole short circuit of deionizer.After this, device goes out electrical conductivity of water and raises rapidly, reaches to begin again behind the maximum value 49mS/m to descend.Device goes out electrical conductivity of water over time as shown in figure 10.
Claims (2)
1, a kind of multi-stage electric capacitance deionizer is characterized in that, this device comprises end plate and electrode unit, and electrode unit is multistage, and a plurality of electrode units place between two end plates successively; Each electrode unit comprises two collector electrodes, two pads and an electrode frame; Four bights of end plate, collector electrode, pad and electrode frame respectively have through hole, collector electrode, pad, electrode frame, pad, collector electrode are through between the end plate after with its closed assembly by through hole by insulating bolt successively: described pad and electrode frame are shaped as frame, in the frame that both form in the space, be provided with activated carbon electrodes, dividing plate and activated carbon electrodes successively, the outside of two side direction frameworks of described electrode frame is provided with upper and lower import and export.
2, device as claimed in claim 1 is characterized in that, a convex part is arranged on the wherein said collector electrode, to be used to connect lead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011296232A CN1133592C (en) | 2001-06-25 | 2001-06-25 | Multi-stage electric capacitance deionizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011296232A CN1133592C (en) | 2001-06-25 | 2001-06-25 | Multi-stage electric capacitance deionizer |
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| CN1330043A CN1330043A (en) | 2002-01-09 |
| CN1133592C true CN1133592C (en) | 2004-01-07 |
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| CNB011296232A Expired - Fee Related CN1133592C (en) | 2001-06-25 | 2001-06-25 | Multi-stage electric capacitance deionizer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624229B (en) * | 2008-07-09 | 2011-06-08 | 冠亚智财股份有限公司 | Capacitor deionizing instrument of mixed type electrodes |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080185294A1 (en) * | 2007-02-01 | 2008-08-07 | General Electric Company | Liquid management method and system |
| CN101891286B (en) * | 2010-04-02 | 2012-05-02 | 广州天至环保科技有限公司 | System for purifying and recycling electroplating/chemical plating wastewater on line |
| CN101811754B (en) * | 2010-05-17 | 2012-02-01 | 长沙理工大学 | Activated carbon washing-resisting electrode and preparation method and application thereof |
| WO2013108597A1 (en) * | 2012-01-16 | 2013-07-25 | クラレケミカル株式会社 | Flow-through capacitor, deionized liquid manufacturing device, and deionized liquid manufacturing method |
| CN102923825A (en) * | 2012-11-12 | 2013-02-13 | 常州大学 | Application of poly m-phenylenediamine |
| CN110723788B (en) * | 2019-08-21 | 2022-05-10 | 山东第一医科大学(山东省医学科学院) | Manufacturing and using method of electrode special for polarized membrane electro-adsorption process |
| CN113754021B (en) * | 2021-08-30 | 2023-05-09 | 南京公诚节能新材料研究院有限公司 | Method for preparing capacitor deionized electrode |
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2001
- 2001-06-25 CN CNB011296232A patent/CN1133592C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101624229B (en) * | 2008-07-09 | 2011-06-08 | 冠亚智财股份有限公司 | Capacitor deionizing instrument of mixed type electrodes |
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