CN201201910Y - Concentrated water filled electric demineralizing equipment - Google Patents
Concentrated water filled electric demineralizing equipment Download PDFInfo
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- CN201201910Y CN201201910Y CNU2008200049925U CN200820004992U CN201201910Y CN 201201910 Y CN201201910 Y CN 201201910Y CN U2008200049925 U CNU2008200049925 U CN U2008200049925U CN 200820004992 U CN200820004992 U CN 200820004992U CN 201201910 Y CN201201910 Y CN 201201910Y
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Abstract
The utility model relates to a liquid purifier for using direct current as deionization drive fore, in particular to an electric desalting device with dense water stuff, belonging to the water purification technical field, which is characterized in that the nearby sides of a dense water chamber anion exchange film are stuffed by anion conductors, the nearby sides of the dense water cation exchange film are stuffed by anion conductors, the nearby sides of an anode chamber anion exchange film are stuffed by anion conductors, the nearby sides of the anode plate are stuffed by anion conductors, the nearby sides of a cathode chamber cation exchange film are stuffed by cation conductors, and the nearby sides of the cathode plate are stuffed by cation conductors. The electric desalting device with dense water stuff can effectively avoid dense water scaling. The anti-scale ability of the device can be improved in an inverted flow type. The liquid purifier can save energy effectively.
Description
Affiliated technical field
The utility model relates to a kind of with the solution deionizer of direct current as ion-drive power, and is particularly a kind of with the water purifying device of direct current as the deionization motivating force.
Background technology
Traditional fluid desalination main method is an ion exchange method.Wherein the one-level desalination is mainly realized by cation exchange bed and anion exchange bed, and the secondary desalination is generally realized by hybrid ionic exchange bed.The greatest problem that ion exchange method exists is that ion exchange resin must use bronsted lowry acids and bases bronsted lowry regeneration, therefore causes a large amount of uses and the environmental pollution of chemical; Also caused the fluctuation of intermitten service and operating parameter.Traditional one-level desalination can replace with reverse osmosis membrane, and the hybrid ionic exchange bed of secondary desalination then can electricity consumption desalination embrane method replace.Different with hybrid ionic exchange bed, the advantage of electric desalination plant is: do not need chemical regeneration, do not need to consume bronsted lowry acids and bases bronsted lowry, the purity of demineralised liquid is stable, working cost is low, contamination-free or sewage discharge.One of important use of electricity desalination plant is water demineralizing.
The basic structure of known technology electricity desalination plant as shown in Figure 6, the desalination unit is made up of the mixture iron exchange resin between anion-exchange membrane 20, cationic exchange membrane 30 and the filling 10.20 of anion-exchange membranes fill perhaps that negatively charged ion sees through, and do not fill cation permeation perhaps; And 30 of cationic exchange membranes fill cation permeation perhaps, and not filling perhaps, negatively charged ion sees through.In the electricity desalination plant desalination unit of some amount is enumerated together, anion-exchange membrane 20 and cationic exchange membrane 30 are alternately arranged, and use spacer 40 that each desalination unit is separated, the space that adjacent anion-exchange membrane 20 and the spacer 40 between the cationic exchange membrane 30 occupy forms dense hydroecium 3.The space that comprises mixture iron exchange resin 10 in the desalination unit between anion-exchange membrane 20 and the cationic exchange membrane 30 is a freshwater room 2.At a series of freshwater rooms 2 and the dense hydroecium 3 alternate cationic exchange membrane of enumerating one ends negative potential 50 is set, the other end is provided with positive electrode 60.Under given direct current promoted, the positively charged ion in the freshwater room 2 was attracted by negative potential 50 (-), enters into contiguous dense hydroecium 3 by cationic exchange membrane 30; And contiguous anion-exchange membrane 20 does not fill and is permitted it and pass through, and these ions promptly are blocked in the dense hydroecium 3.Negatively charged ion is motion in the opposite direction then, and same is blocked in the dense hydroecium 3.The space of bag is called anode chamber 1 between negative potential 50 and the close cationic exchange membrane 30, and the space between positive electrode 60 and the close anion-exchange membrane 20 is called cathode chamber 4.The mixture iron exchange resin 10 of filling in the freshwater room 2 is the ion in the absorption feedwater constantly from feedwater, and the ion that these are adsorbed is transferred in the dense hydroecium 3 by mixture iron exchange resin 10 and anion-exchange membrane 20 and cationic exchange membrane 30 under the electric field action of positive electrode 60 and negative potential 50, is discharged then.Freshwater room mixture iron exchange resin 10 has increased ionic movement velocity in the freshwater room 2 greatly, thereby has reduced the resistance in the freshwater room 2.
Electric desalination plant can be with following current or reflux type operation in the known technology.
There are serious polarization phenomena in electric desalination plant intermediate ion exchange membrane surface in the known technology, and therefore dense water scale problems is comparatively serious.
Improve the electroconductibility of dense water in the known technology with salt or dense water filling ionophore by dense water.The effect of dense water filling and method have obtained disclosing and setting forth in United States Patent (USP) 2815320, United States Patent (USP) 4465573 (1984) has also been described the technical scheme of filling ion exchange resin in the dense hydroecium of electric desalination plant, and United States Patent (USP) Re35741 (1998) has disclosed the technical scheme of the equal grain of filling ion exchange resin in the dense water of electric desalination plant.For the successive conductor being provided for the ion in the dense water, must closely contact between the ionophore particle of filling in the dense water and between these particles and the negative and positive film.The most common ionophore is a kind of in mixture iron exchange resin or the anion-cation exchange resin.The dense water filling method of known technology inevitably makes the anion-exchange membrane surface that the closely Zeo-karb of contact is arranged with it, concentrated stream speed is zero no better than on this contact surface, see through this contact surface to the negatively charged ion of the anion-exchange membrane of correspondence with by relevant Zeo-karb migration positively charged ion so far can't by dense water towards from, these ions in this contact surface combination and fouling.When same principle, cationic exchange membrane surface had the anionite-exchange resin that closely contacts with it, fouling tendency was serious on this contact surface.
Do not have to lower the dense water packing technique of anion and cation exchange membrane surface ion concentration in the electric desalination plant in the known technology.
Summary of the invention
The utility model will solve existing electric desalination plant owing to dense water filling increases the technical problem of fouling tendency, and a kind of dense water filling electricity desalination plant that reduces dense water fouling tendency by dense water filling is provided.
The dense water filling electricity of the utility model desalination plant comprises a positive electrode, one negative potential, at least one anion-exchange membrane, at least one cationic exchange membrane and be filled in anion-exchange membrane and cationic exchange membrane between ionophore, many group anion-exchange membranes and cationic exchange membrane are alternately between positive electrode and negative potential, the contiguous positive electrode of one anion-exchange membrane and with positive electrode formation cathode chamber spaced apart, this anion-exchange membrane forms a freshwater room with adjacent cationic exchange membrane with it, form dense hydroecium between this cationic exchange membrane and the next anion-exchange membrane, the cationic exchange membrane and the negative potential formation anode chamber spaced apart of one contiguous negative potential, the equal filling ionophore of freshwater room and dense hydroecium, it is characterized in that dense hydroecium anion-exchange membrane sides adjacent filling anion conductor, dense water cation exchange membrane sides adjacent filling anion conductor, cathode chamber anion-exchange membrane sides adjacent filling anion conductor, positive plate sides adjacent filling cationic conductor, anode chamber cationic exchange membrane sides adjacent filling cationic conductor, negative plate sides adjacent filling cationic conductor.
The dense water anion-exchange membrane of the dense water filling electricity desalination plant of the utility model sides adjacent filling anion conductor, make to see through negatively charged ion that anion-exchange membrane the enters dense hydroecium anion-exchange membrane surface that can speed away by the anion conductor that contacts with the anionresin film close, enter dense water main body by the ionophore surface again.The same positively charged ion that sees through cationic exchange membrane also can more promptly enter dense water main body.Such placement method can promptly leave the anion and cation exchange membrane surface with the zwitterion migration respectively, avoid simultaneously negatively charged ion is further migrated to the surface of same dense hydroecium cationic exchange membrane by ionophore, avoid positively charged ion is further migrated to by ionophore the surface of same dense hydroecium anion-exchange membrane.Can avoid the scale problems on film surface effectively by the surface of zwitterion being moved ion-exchange membrane rapidly.
The anodal hydroecium anion-exchange membrane of the utility model dense water filling electricity desalination plant sides adjacent filling anion conductor, positive plate sides adjacent filling cationic conductor, such filling can effectively avoid chlorion kind to the expansion on negative plate surface, lower the content that the polar board surface electrolysis produces chlorine, the life-span that helps improving electric desalination plant.The dense water filling electricity of the utility model desalination plant negative pole hydroecium cationic exchange membrane sides adjacent filling cationic conductor, negative plate sides adjacent filling anion conductor.Such filling method can lower negative plate surface calcium ions and magnesium ions scale problems.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the synoptic diagram of the dense water filling electricity of the utility model desalination plant, expresses the situation of each flow direction and various ion migration simultaneously.
Fig. 2 is the distribution schematic diagram of the ionophore 40 of the dense water filling of the dense water filling electricity desalination plant of the utility model, and wherein 41 is anion conductor, and 42 is cationic conductor.
Fig. 3 is the ionophore synoptic diagram of the dense water filling of the dense water filling electricity of the utility model desalination plant thickening, and wherein 41 is anion conductor, and 42 is cationic conductor.
Fig. 4 is the ionophore synoptic diagram that the dense water filling electricity of the utility model desalination plant has comprised the dense water filling of middle spacer web or screen cloth, and wherein 41 is anion conductor, and 42 is cationic conductor, and 43 is filter or screen cloth.
Fig. 5 is the ionophore synoptic diagram of the dense water filling of the dense water filling of the utility model electricity desalination plant thickening that comprised middle spacer web or screen cloth, and wherein 41 is anion conductor, and 42 is cationic conductor, and 43 is filter or screen cloth.
Fig. 6 is a known technology following current electricity desalination plant synoptic diagram.
Embodiment
Fig. 1 and shown in Figure 4 be a kind of special case of the dense water filling electricity of the utility model desalination plant, comprise a positive electrode 60, one negative potential 50, at least one anion-exchange membrane 20, at least one cationic exchange membrane 30 and be filled in anion-exchange membrane and cationic exchange membrane between ionophore layer 10 and 40, many group anion-exchange membranes 20 and cationic exchange membrane 30 are alternately between positive electrode 60 and negative potential 50, the cationic exchange membrane 30 and the negative potential 50 formation anode chamber 1 spaced apart of one contiguous negative potential 50, the contiguous positive electrodes 60 of one anion-exchange membrane 20 and with positive electrode formation cathode chamber 4 spaced apart, one anion-exchange membrane 20 and adjacent with it cationic exchange membrane 30 formation one freshwater room 2 form dense hydroecium 3 between this cationic exchange membrane 30 and the next anion-exchange membrane 20.Freshwater room 2, dense hydroecium 3, anode chamber 1 and cathode chamber 4 equal filling ionophores.Dense hydroecium anion-exchange membrane sides adjacent filling anion conductor, dense water cation exchange membrane sides adjacent filling anion conductor, cathode chamber anion-exchange membrane sides adjacent filling anion conductor, the positive plate sides adjacent has a filter 43, be the cationic conductor filling bed then, anode chamber cationic exchange membrane sides adjacent filling cationic conductor, the negative plate sides adjacent has a filter 43, is the anion conductor filling bed then.Between cathode chamber, anode chamber and the dense hydroecium zwitterion filling bed reticulation 43 is arranged.
Fig. 1 operates to the using method of the dense water filling electricity of illustration meaning the utility model desalination plant with adverse current.Feed-water intake 100 is located at the upper end of reverse-flow type electric desalting unit, and water outlet 110 is located at the lower end of reverse-flow type electric desalting unit, the fresh water freshwater room 2 of flowing through from top to bottom; Dense water inlet 200 and utmost point water inlet 300 are located at electric desalination plant lower end, and dense water out 210 and utmost point water out 310 are located at reverse-flow type electric desalting unit upper end, dense water and utmost point water from bottom to top flow through respectively dense hydroecium 3 and utmost point hydroecium 1.Feedwater enters freshwater room 2 by the upper end of reverse-flow type electric desalting unit, anionic ion when entering freshwater room 2 (comprising sulfate radical, carbonate, chlorion) move to be seen through anion-exchange membrane 20 and enters dense hydroecium 3, again via entering dense water main body with the anion-exchange membrane 20 tight anionite-exchange resin 41 that the contact anion-exchange membrane 20 that speeds away; Cationic ion when entering freshwater room 2 (comprising calcium, magnesium, sodium and hydrogen ion) move to be seen through cationic exchange membrane 30 and enters dense hydroecium 3, again via entering dense water main body with the cationic exchange membrane 20 tight cationic conductors 42 that the contact cationic exchange membrane that speeds away.The zwitterion that enters dense water main body is taken out of electric desalination plant by dense water.Negative pole hydroecium 1 cationic exchange membrane 30 sides adjacent filling cationic conductors 42 wherein, negative plate sides adjacent filling anion conductor 41.Such filling method can lower negative plate surface calcium ions and magnesium ions scale problems.Anodal hydroecium 4 anion-exchange membranes 20 sides adjacent filling anion conductors 41, positive plate sides adjacent filling cationic conductor 42, such filling can effectively avoid chlorion kind to the expansion on negative plate surface, lower the content that the polar board surface electrolysis produces chlorine, the life-span that helps improving electric desalination plant.
Disclose in the utility model dense water placement method be applicable to following current or countercurrent electric desalination plant.
The ionophore of the dense water filling of the utility model only plays the effect that reduces dense water electroconductibility; therefore can be any solid that increases enriched water electroconductibility; include, without being limited to ion exchange resin; ion-exchange fiber or any conductive particle or fiber or screen cloth, wherein ion-exchange resin particles is comparatively common is easy to get.Ion-exchange resin particles can be equal grain, also can the equal grain of right and wrong.
As Fig. 1, Fig. 4 and shown in Figure 5, between dense hydroecium zwitterion conductor, assemble ion, one deck filter or screen cloth can be set between the zwitterion conductor.
As shown in Figure 1, certain utmost point water flow velocity is arranged, one deck filter or screen cloth are set on the positive and negative electrode surface in order to guarantee electrode plate surface.
As Fig. 2, Fig. 3 and Fig. 4, shown in Figure 5, thickness that can the filling of regulating YIN and YANG ionophore is to adjust the thickness of the dense water of electric desalination plant.
As shown in Figure 1, the electricity desalination plant is made up of 40 pairs of anion-exchange membranes and cationic exchange membrane, freshwater room 2, dense hydroecium 3 and utmost point hydroecium 1 equal filling mixture iron exchange resin, the reflux type operation, go out under fresh water is enterprising, the dense water and the utmost point go out on advancing under water, feedwater conductivity 30uS/cm, hardness 10mg/L (lime carbonate meter), per hour 3 cubic metres of fresh-water flows, per hour 0.06 cubic metre of 0.3 cubic metre of concentrated stream amount, utmost point discharge, operating parameter saw Table 1 after electric desalination plant actual motion reached stable state.
The dense water filling of table 1 countercurrent electric desalination plant test result
| Electric current (A) (± 0.1) | 0.5 | 1.0 | 1.5 |
| Voltage (V) (± 5) | 35 | 72 | 109 |
| Fresh water resistivity (M Ω cm) (± 0.1) | 17.5 | 18.0 | 17.2 |
After obtaining above data this countercurrent electric desalination plant is moved 2000 hours continuously with 1.0A, fresh water resistivity, flow and concentrated stream amount, pressure have no significant change, and illustrate that device does not need to clean in moving three months.Ton water current consumption is 0.024KWhr..
Comparative Examples 1
The device internal structure is identical with embodiment 1, and direction changes into down and but fresh water feeds water, and device is with the downflow system operation, and other condition is identical with embodiment 1, and operating parameter saw Table 2 after this electricity desalination plant operation reached stable state.
The dense water filling of table 2 following current electricity desalination plant test result
| Electric current (A) (± 0.1) | 2.0 | 3.0 | 4.0 |
| Voltage (V) (± 5) | 125 | 199 | 267 |
| Fresh water resistivity (M Ω cm) (± 0.1) | 13.8 | 15.3 | 18.1 |
Obtain after the above data with this countercurrent electric desalination plant with 4.0A continuously operation after 720 hours fresh water resistivity and concentrated stream amount begin to descend, prove that device needed clean in every month, ton water current consumption is 0.36KWhr..
Comparative Examples 2
Device internal structure and embodiment 1 Comparative Examples 1 are basic identical, but dense water and the equal filling mixture iron exchange resin of utmost point water, device is with the downflow system operation, and other condition is identical with embodiment 1, and operating parameter saw Table 3 after this electricity desalination plant operation reached stable state.
The dense water filling of table 3 following current electricity desalination plant test result
| Electric current (A) (± 0.1) | 3.0 | 4.0 | 5.0 |
| Voltage (V) (± 5) | 109 | 152 | 197 |
| Fresh water resistivity (M Ω cm) (± 0.1) | 12.6 | 15.3 | 16.3 |
The dense hydroecium of electric desalination plant is cleaned, move continuously with 5A, move that fresh water resistivity begins to descend after 46 hours, continue to move 12 hours, the concentrated stream amount begins to have obvious reduction.Device needed clean once in every 2-3 days.Ton water current consumption is 0.33KWhr..
Claims (4)
1, a kind of dense water filling electricity desalination plant comprises a positive electrode, one negative potential, at least one anion-exchange membrane, at least one cationic exchange membrane and be filled in anion-exchange membrane and cationic exchange membrane between ionophore, many group anion-exchange membranes and cationic exchange membrane are alternately between positive electrode and negative potential, the contiguous positive electrode of one anion-exchange membrane and with positive electrode formation cathode chamber spaced apart, this anion-exchange membrane forms a freshwater room with adjacent cationic exchange membrane with it, form dense hydroecium between this cationic exchange membrane and the next anion-exchange membrane, the cationic exchange membrane and the negative potential formation anode chamber spaced apart of one contiguous negative potential, the equal filling ionophore of freshwater room and dense hydroecium, it is characterized in that dense hydroecium anion-exchange membrane sides adjacent filling anion conductor, dense water cation exchange membrane sides adjacent filling anion conductor, cathode chamber anion-exchange membrane sides adjacent filling anion conductor, positive plate sides adjacent filling cationic conductor, anode chamber cationic exchange membrane sides adjacent filling cationic conductor, negative plate sides adjacent filling cationic conductor.
2, dense water filling electricity desalination plant according to claim 1 is characterized in that described ionophore can be any solid that increases enriched water electroconductibility, includes, without being limited to ion exchange resin, ion-exchange fiber or any conductive particle or fiber or screen cloth.
3, dense water filling electricity desalination plant according to claim 1 is characterized in that between the zwitterion conductor of dense hydroecium, cathode chamber and anode chamber filling one deck filter or screen cloth being arranged.
4, dense water filling electricity desalination plant according to claim 1 is characterized in that between positive and negative electrode surface and ionophore filling bed one deck filter or screen cloth at least being arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200049925U CN201201910Y (en) | 2008-03-19 | 2008-03-19 | Concentrated water filled electric demineralizing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200049925U CN201201910Y (en) | 2008-03-19 | 2008-03-19 | Concentrated water filled electric demineralizing equipment |
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| CN201201910Y true CN201201910Y (en) | 2009-03-04 |
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| CNU2008200049925U Expired - Fee Related CN201201910Y (en) | 2008-03-19 | 2008-03-19 | Concentrated water filled electric demineralizing equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548273A (en) * | 2016-02-02 | 2016-05-04 | 河南工程学院 | Electrostatic desalination testing device and method |
| CN114275861A (en) * | 2022-01-24 | 2022-04-05 | 爱之馨(上海)家化有限公司 | Water deionization filter equipment |
-
2008
- 2008-03-19 CN CNU2008200049925U patent/CN201201910Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105548273A (en) * | 2016-02-02 | 2016-05-04 | 河南工程学院 | Electrostatic desalination testing device and method |
| CN105548273B (en) * | 2016-02-02 | 2018-03-23 | 河南工程学院 | Electrostatic desalination experimental rig and test method |
| CN114275861A (en) * | 2022-01-24 | 2022-04-05 | 爱之馨(上海)家化有限公司 | Water deionization filter equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Grant Membrane Separation Equipment Co., Ltd. Assignor: Meng Guangzhen Contract fulfillment period: 2009.6.25 to 2019.6.24 Contract record no.: 2009990000742 Denomination of utility model: Concentrated water filled electric demineralizing equipment Granted publication date: 20090304 License type: Exclusive license Record date: 20090713 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.6.25 TO 2019.6.24; CHANGE OF CONTRACT Name of requester: BEIJING GRANT MEMBRANE SEPARATION EQUIPMENT CO., L Effective date: 20090713 |
|
| ASS | Succession or assignment of patent right |
Owner name: BEIJING CANPURE ENVIRONMENT PROTECTIONTECHNOLOGY C Free format text: FORMER OWNER: MENG GUANGZHEN Effective date: 20091211 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091211 Address after: Ma Fang West Industrial Park of Beijing city Pinggu District No. 249, zip code: 101204 Patentee after: Canpure Equipment International, Ltd. Address before: Beijing City, Chaoyang District Hebei sun Dian Huang Road No. 18, the Grant company, zip code: 100102 Patentee before: Meng Guangzhen |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20170319 |
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| CF01 | Termination of patent right due to non-payment of annual fee |