CN203725159U - Device for electro-regeneration of mixed bed ion exchange resin with bipolar membrane method - Google Patents
Device for electro-regeneration of mixed bed ion exchange resin with bipolar membrane method Download PDFInfo
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- CN203725159U CN203725159U CN201420099424.3U CN201420099424U CN203725159U CN 203725159 U CN203725159 U CN 203725159U CN 201420099424 U CN201420099424 U CN 201420099424U CN 203725159 U CN203725159 U CN 203725159U
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Abstract
The utility model relates to a device for electro-regeneration of mixed bed ion exchange resin with a bipolar membrane method. The device consists of three parts, namely, a bipolar membrane acid and base generator, a liquid storage tank and resin regenerators, wherein the bipolar membrane acid and base generator is in a plate and frame shape and consists of multiple membrane pairs, each membrane pair consists of a positive membrane, a negative membrane and a bipolar membrane, baffles are arrangedamongall the membranes, electrodes and end plates are arranged at two ends, and the membranes are fixed by a plurality of bolts and pressed into a whole; the liquid storage tank consists of a dilute acid regeneration liquid tank, a dilute base regeneration liquid tank, a dilute saline water tank and a polar water tank; the resin regenerators comprises an in-vivo regenerator and an in-vitro regenerator. According to the device, a traditional technology that an acid and base regeneration mixed bed is used is improved, acid and base storage and transportation links are omitted, and a precedent that the bipolar membrane method is used for disassociating water to prepare the mixed bed resin regenerated by dilute acid and base regeneration liquids under the action of a direct-current electric field is created, so that the mixed bed resin regeneration is more thorough, the regeneration cost is reduced, the regeneration device basically discharges no waste, the environment is protected, and the safety level is increased.
Description
Technical field
The utility model relates to the device of the inactive ion exchange resin of regenerating in ion exchange water treatment desalting technology.
Background technology
At present, the multiple advanced desalting technology such as electrodeionization and counter-infiltration is promoted and uses in the process of preparing primary pure water, but mixed bed ion exchange desalination is still being applied in the fields such as electric power, electronics, chemical industry, pharmacy widely as the accurate process equipment of preparing pure water, take thermal power plant as example, in preparation boiler feedwater desalination system, use electrodeionization desalination, only account for 5 ~ 10%, other, still all use mixed bed ion exchange desalination, and condensate fine processing desalination system is all provided with mixed bed ion exchange desalination.In mixed-bed exchanger, H type storng-acid cation exchange resin and OH type strong-base anion-exchange resin are generally housed.They can carry out ion-exchange with contained yin, yang ion salty in water, result, and the salt ion in water is adsorbed, and finally obtains pure water.Lose the yin, yang resin of the ability of exchange, used soda acid chemical agent, made it recover exchange capacity.
This acid-alkali regeneration method exists many defects, as regenerative agent utilize low, discharging of waste liquid contaminated environment, regenerative process complicated operation, soda acid storing inconvenience, equipment corrosion and working condition are severe etc., therefore, people are in the urgent need to developing the electric regeneration of ion exchange resin method without soda acid.
China's patent " method and the device of the electricity regeneration of ion exchange resin " (ZL96120791.4) (ZL200420009828.3), discloses and has utilized electric deionizer to carry out the technology of electric regeneration of ion exchange resin with " multiple bed ion exchange resin electro-regenerating device ".In the time of this two kinds of electric regenerating ion exchange resin technology of exploitation, find: current used electric deionizer membrane stack is less, and aquifer yield is 1m
3/ h, the amount of resin of filling in electric deionizer membrane stack is only 10kg, amplify the large membrane stack of manufacture according to the membranelle heap of existing structure and run into the difficulty in manufacture.As manufacturing primary recycling 250kg resin, just need to prepare floor space be 1m
2, high nearly 2m large-scale electric deionizer membrane stack.Such Static Electro regeneration 250kg resin, just has Practical meaning; In addition, make regenerating resin be less than in the interval of 10mm and flow in intermembranous distance, also run into the problems such as two phase flow generation resin obstruction.
China's patent " method of regenerating ion exchange resin by bipolar membrane hydrolytic dissociation and device " (ZL02124071.X), method with bipolar embrane method regenerating ion exchange resin is disclosed, but implement still to need when the method regenerating resin to flow in intermembranous distance is less than the interval of 10mm, also run into the problems such as two phase flow generation resin obstruction.The two phase flow of resin and water, flows not smooth, and obstruction or mobile uneven easily occurs,
Therefore, the problems such as two phase flow generation resin obstruction, have affected the realization of the industrialization of the electric regeneration techniques of ion exchange resin.
In recent years, domestic Bipolar Membrane is come out, and has broken the monopolization of external production Bipolar membrane water splitting.At this moment, possessed the condition of exploitation Bipolar Membrane Related product.
The purpose of this utility model and task are deficiency and the defects existing for prior art, provide a kind of and obtain acid-alkali regeneration liquid by Bipolar Membrane legal system under DC electric field effect, and with this regenerated liquid inefficacy Ion Exchange Resin In The Mixing Bed of regenerating, realize the electricity regeneration of Ion Exchange Resin In The Mixing Bed.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of energy need not store acid-alkali regeneration liquid, environmentally friendly, the device of the mixed bed ion exchange regeneration of non waste discharge.
Because traditional Ion Exchange Resin In The Mixing Bed regeneration technology has contaminated environment, complicated operation, needs many defects such as storage acid alkaline regeneration solution.
The utility model is a kind of device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed,
1. Bipolar Membrane is produced soda acid device 3: be sheet frame type, it by organize more film to form, every group of film is to by a cavity block 9, an anode membrane 10 and a Bipolar Membrane 11 form, between each film, there is dividing plate, two ends are electrode and end plate, fix with plurality of bolts, be compacted into entirety, concrete assembling mode: with a cavity block, it is one group that an anode membrane and a Bipolar Membrane are joined, from left to right from anode 8, be arranged in order, first group of cavity block 9, anode membrane 10 and Bipolar Membrane 11, ranked second again group cavity block 9, anode membrane 10 and Bipolar Membrane 11, each group of repeated arrangement successively, until right-hand member is finally cavity block 9, anode membrane 10 and negative electrode 12, thereby form successively from left to right anode chamber, weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, form again weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, the corresponding each chamber of repeated arrangement successively, until right-hand member is finally weak brine chamber, cathode chamber,
2. receiver: formed by diluted acid regeneration flow container 5, diluted alkaline regeneration flow container 4, weak brine tank 1 and utmost point water pot 2;
3. resin regeneration device: concerning internal regeneration, in mixed bed, negative resin regenerating section 6 is for negative resin regeneration, and mixed bed middle-jiao yang, function of the spleen and stomach resin regeneration part 7 is for positive resin regeneration; Concerning external regeneration, negative resin regenerating tank 13 and positive resin regeneration tank 14 are for regeneration.
Bipolar Membrane is produced the anode 8 described in soda acid device 3 and the spacing (being the thickness of anode chamber) between cavity block 9, spacing between described cavity block 9 and anode membrane 10, be the thickness of weak brine chamber, spacing between described anode membrane 10 and Bipolar Membrane 11, i.e. the thickness of diluted alkaline regeneration liquid chamber, the spacing between described Bipolar Membrane 11 and cavity block 9, be the thickness of diluted acid regeneration liquid chamber, spacing between described cavity block 9 and negative electrode 12, i.e. the thickness of cathode chamber, their spacing≤10mm.
In the device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed, described Bipolar Membrane is produced soda acid device 3 right quantity≤200 pair of film used; Described anode 8 is net or porous plates of titanium plating ruthenium material; Described negative electrode 12 is porous plates of stainless steel or nickel-clad iron material.
Bipolar Membrane is that a side is anode membrane and opposite side is cavity block, and centre accompanies the composite membrane of catalyst layer.Observe from microcosmic angle, the catalyst layer in the middle of Bipolar Membrane can constantly absorb water, and under DC electric field effect, makes water decomposition H
2o
h
++ OH
-.The H of water decomposition gained
+the dissociate anion X of gained of cation and salt MX
-be combined into sour HX, the anion OH of water decomposition gained
-with the dissociate cation M of gained of salt MX
+be combined into alkali MOH.The soda acid of these generations gathers up, for subsequent use.
Bipolar Membrane is produced soda acid device under additional power source effect, and water decomposition reaction occurs, and rare salting liquid reaction generation acid regeneration liquid and alkaline regeneration solution, by pump, acid regeneration liquid and alkaline regeneration solution is collected, and sends into respectively diluted acid flow container and diluted alkaline flow container.Also the electrochemical reaction occurring at negative electrode and anode should avoid electrode to produce harmful effect as far as possible.
Produce soda acid device by Bipolar Membrane and produce acid-alkali regeneration liquid, can make Ion Exchange Resin In The Mixing Bed be regenerated, produce in soda acid device in Bipolar Membrane, water is isolated the bronsted lowry acids and bases bronsted lowry of identical molal quantity under the effect of electric field.After mixed-bed resin regeneration, the useless acid-base neutralization after use, regenerates salt, and the pH value in water is neutral.Can environmental pollution.
In conventional regeneration technique, the Ion Exchange Resin In The Mixing Bed soda acid used of regenerating needs the links such as buying, transport and storage, because soda acid is dangerous material, must use the safety in each storing link of special equipment guarantee.Also be provided with soda acid bunkerage, using when soda acid, need to use soda acid measuring equipment, the concentrated acid alkali of storage is rushed rare, allocate.This is adventurous operation, once had the case that soda acid operation causes personnel's heavy casualties occurs.So existing acid-alkali regeneration method makes troubles to manager and the user of vast enterprise, not yet has at present new technique to change this situation.
In the utility model, utilize Bipolar Membrane directly to make bronsted lowry acids and bases bronsted lowry regenerated liquid, not quite identical with traditional mixed bed regeneration technology, the generation salt reuse again after neutralization, has reduced waste discharge.
The soda acid that the utility model uses produces soda acid device by Bipolar Membrane and need to directly make according to regeneration.Require difference according to the regeneration degree of resin, acid base concentration is also different, has so just simplified resin regeneration technique.The mass percentage concentration of the soda acid making is the highest only has 5%, has greatly increased security.
Advantage of the present utility model:
1) how many diluted acid alkali regenerative agents needs, and how much produces, and there is no purchasing and storing and transporting for a long time problem of acid-alkali regeneration agent, concentrated acid alkali belongs to hazardous chemicals, purchases with special messenger's examination & approval, use special explosion-proof vehicle transport, want special dangerous cargo warehouse storage, very inconvenient;
2) environmental benefit is good, and it is neutral that water outlet is;
3) with the diluted acid alkali operation of percentage mass concentration≤10%, workman's working condition makes moderate progress;
4) operation is simplified to some extent, and equipment handover charge is low, is beneficial to popularization;
5) the utility model product is specially adapted to the area of the soda acid supply bottleneck such as borderland and west area;
6) be specially adapted to thermal power plant or nuclear power plant and use, while being particularly suitable for the energy-saving and emission-reduction technological transformation of old factory, use.
The utility model adopts current advanced person's Bipolar membrane water splitting, improves the regeneration technology of traditional mixed bed, is particularly useful for using in thermal power plant.
Brief description of the drawings
The schematic appearance of the utility model device when Fig. 1 is internal regeneration mixed-bed resin.
Fig. 2 is that regeneration Ion Exchange Resin In The Mixing Bed Bipolar Membrane is produced soda acid device schematic diagram.
The schematic appearance of the utility model device when Fig. 3 is external regeneration mixed-bed resin.
In figure: 1-weak brine tank; 2-utmost point water pot; 3-Bipolar Membrane is produced soda acid device; 4-diluted alkaline regeneration flow container; 5-diluted acid regeneration flow container; Negative resin regenerating section in 6-mixed bed; 7-mixed bed middle-jiao yang, function of the spleen and stomach resin regeneration part; 8-anode; 9-cavity block; 10-anode membrane; 11-Bipolar Membrane; 12-negative electrode; 13-negative resin regenerating tank; 14-positive resin regeneration tank
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described:
Embodiment 1
The schematic appearance of the utility model device when Fig. 1 is internal regeneration mixed-bed resin, comprises following part:
1. Bipolar Membrane is produced soda acid device 3: be sheet frame type, it by organize more film to form, every group of film is to by a cavity block 9, an anode membrane 10 and a Bipolar Membrane 11 form, between each film, there is dividing plate, two ends are electrode and end plate, fix with plurality of bolts, be compacted into entirety, concrete assembling mode: with a cavity block, it is one group that an anode membrane and a Bipolar Membrane are joined, from left to right from anode 8, be arranged in order, first group of cavity block 9, anode membrane 10 and Bipolar Membrane 11, ranked second again group cavity block 9, anode membrane 10 and Bipolar Membrane 11, each group of repeated arrangement successively, until right-hand member is finally cavity block 9, anode membrane 10 and negative electrode 12, thereby form successively from left to right anode chamber, weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, form again weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, the corresponding each chamber of repeated arrangement successively, until right-hand member is finally weak brine chamber, cathode chamber,
2. receiver: formed by diluted acid regeneration flow container 5, diluted alkaline regeneration flow container 4, weak brine tank 1 and utmost point water pot 2;
3. resin regeneration device: concerning internal regeneration, in mixed bed, negative resin regenerating section 6 is for negative resin regeneration, and mixed bed middle-jiao yang, function of the spleen and stomach resin regeneration part 7 is for positive resin regeneration.
Above-mentioned various intermembranous spacing, the i.e. thickness≤10mm of various chambers.
Above-mentioned Bipolar Membrane is produced soda acid device 3 right quantity≤200 pair of film used.
Above-mentioned anode 8 is net or porous plates of titanium plating ruthenium material.
Above-mentioned negative electrode 12 is porous plates of stainless steel or nickel-clad iron material.
Embodiment 2
The schematic appearance of the utility model device when Fig. 3 is external regeneration mixed-bed resin.
Roughly the same when the outward appearance of the utility model device and internal regeneration mixed-bed resin when external regeneration mixed-bed resin.
Difference when external regeneration mixed-bed resin and when internal regeneration mixed-bed resin is, while regeneration in vitro, mixing yin, yang resin in mixed bed is transported in separator and separates in the time of regeneration, and the yin, yang resin after separation is sent into respectively negative resin regenerating tank 13 and positive resin regeneration tank 14.Diluted alkaline, the diluted acid regenerated liquid generating enters respectively negative resin regenerating tank 13, positive resin regeneration tank 14.Send in mixed bed and mix again through regeneration with after cleaning at yin, yang resin.The regeneration of mixed-bed resin when this has just completed external regeneration.
Claims (5)
1. a device for bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed, is characterized in that:
1. Bipolar Membrane is produced soda acid device (3): be sheet frame type, it by organize more film to form, every group of film is to by a cavity block (9), an anode membrane (10) and a Bipolar Membrane (11) form, between each film, there is dividing plate, two ends are electrode and end plate, fix with plurality of bolts, be compacted into entirety, concrete assembling mode: with a cavity block, it is one group that an anode membrane and a Bipolar Membrane are joined, from left to right from anode (8), be arranged in order, first group of cavity block (9), anode membrane (10) and Bipolar Membrane (11), ranked second again group cavity block (9), anode membrane (10) and Bipolar Membrane (11), each group of repeated arrangement successively, until right-hand member is finally cavity block (9), anode membrane (10) and negative electrode (12), thereby form successively from left to right anode chamber, weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, form again weak brine chamber, diluted alkaline regeneration liquid chamber and diluted acid regeneration liquid chamber, the corresponding each chamber of repeated arrangement successively, until right-hand member is finally weak brine chamber, cathode chamber,
2. receiver: formed by diluted acid regeneration flow container (5), diluted alkaline regeneration flow container (4), weak brine tank (1) and utmost point water pot (2);
3. resin regeneration device: concerning internal regeneration, in mixed bed, negative resin regenerating section (6) is for negative resin regeneration, and mixed bed middle-jiao yang, function of the spleen and stomach resin regeneration part (7) is for positive resin regeneration; Concerning external regeneration, negative resin regenerating tank (13) and positive resin regeneration tank (14) are for regeneration;
Bipolar Membrane is produced soda acid device (3) and is connected with receiver various piece, and it is connected with weak brine tank (1), produces soda acid device (3) input weak brine to Bipolar Membrane; It is connected with utmost point water pot (2), produces soda acid device input utmost point water to Bipolar Membrane; It is connected with diluted acid regeneration flow container (5), produces soda acid device (3) output diluted acid regenerated liquid from Bipolar Membrane; It is connected with diluted alkaline regeneration flow container (4), produces soda acid device (3) output diluted alkaline regenerated liquid from Bipolar Membrane; Resin regeneration device is positioned at the end of this device, it is connected with diluted alkaline regeneration flow container (4) with the diluted acid regeneration flow container (5) in receiver, the ion exchange resin losing efficacy with diluted acid, alkaline regeneration solution regeneration, the waste regeneration liquid flowing out from resin regeneration device and cleaning waste water part enter weak brine tank (1) and recycle.
2. the device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed according to claim 1, it is characterized in that: the spacing between described anode (8) and cavity block (9), be the thickness of anode chamber, spacing between described cavity block (9) and anode membrane (10), be the thickness of weak brine chamber, spacing between described anode membrane (10) and Bipolar Membrane (11), be the thickness of diluted alkaline regeneration liquid chamber, spacing between described Bipolar Membrane (11) and cavity block (9), be the thickness of diluted acid regeneration liquid chamber, spacing between described cavity block (9) and negative electrode (12), be the thickness of cathode chamber, all≤10mm.
3. the device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed according to claim 1, is characterized in that: described Bipolar Membrane is produced right quantity≤200 pair of soda acid device (3) film used.
4. the device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed according to claim 1, is characterized in that: described anode (8) is net or the porous plate of titanium plating ruthenium material.
5. the device of bipolar embrane method electricity regeneration Ion Exchange Resin In The Mixing Bed according to claim 1, is characterized in that: described negative electrode (12) is the porous plate of stainless steel or nickel-clad iron material.
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| CN201420099424.3U CN203725159U (en) | 2014-03-06 | 2014-03-06 | Device for electro-regeneration of mixed bed ion exchange resin with bipolar membrane method |
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| CN201420099424.3U CN203725159U (en) | 2014-03-06 | 2014-03-06 | Device for electro-regeneration of mixed bed ion exchange resin with bipolar membrane method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888870A (en) * | 2014-03-06 | 2015-09-09 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN109908975A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin device of Bipolar Membrane method |
| CN109908979A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin method of Bipolar Membrane method |
| CN109908978A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin device of Bipolar Membrane method |
| CN109908976A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin method of Bipolar Membrane method |
-
2014
- 2014-03-06 CN CN201420099424.3U patent/CN203725159U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888870A (en) * | 2014-03-06 | 2015-09-09 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN104888870B (en) * | 2014-03-06 | 2017-04-12 | 苏州华清水处理技术有限公司 | Apparatus for electrically regenerating mixed bed ion exchange resin through bipolar membrane method |
| CN109908975A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin device of Bipolar Membrane method |
| CN109908979A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin method of Bipolar Membrane method |
| CN109908978A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative OH type anion bed failure anion exchange resin device of Bipolar Membrane method |
| CN109908976A (en) * | 2017-12-12 | 2019-06-21 | 苏州华清水处理技术有限公司 | A kind of electrically regenerative H-type cation bed failure cation exchange resin method of Bipolar Membrane method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140723 Effective date of abandoning: 20170412 |