CN2739170Y - Composite bed ion exchange resin electro-regenerating device - Google Patents
Composite bed ion exchange resin electro-regenerating device Download PDFInfo
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- CN2739170Y CN2739170Y CN 200420009028 CN200420009028U CN2739170Y CN 2739170 Y CN2739170 Y CN 2739170Y CN 200420009028 CN200420009028 CN 200420009028 CN 200420009028 U CN200420009028 U CN 200420009028U CN 2739170 Y CN2739170 Y CN 2739170Y
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- ion exchange
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- exchange resin
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Abstract
The utility model provides a composite bed ion exchange resin electro-regenerating device after failure which relates to a regenerating device after failure of the composite bed ion exchange resin in the ion exchange water treating desalting technique. The device adopts a new technique which is combined by the water treatment with membrane technology and the ion exchange. The composite bed ion exchange resin electro-regenerating device is characterized in that a bipolar membrane is added. The water is ionized into the h<+> and the oh<-> ions which are respectively exchanged with the irons on the failure resin to make the cation and anion bed failure resin be respectively and electrically regenerated in the respective electro-regenerating chamber by the function of the added direct current electric field. In addition, the concentration water chamber is filled with the resin used to conduct. The composite bed ion exchange resin electro-regenerating device can stably run for a long time with good resin regenerating effect. The operation does not consume the acid and alkali chemical medicament. The composite bed ion exchange resin electro-regenerating device does not have the waste or pollute the water or environment. The composite bed ion exchange resin electro-regenerating device only consumes little electric energy and water energy. The composite bed ion exchange resin electro-regenerating device has low energy consumption, good economic benefit, easy operation and convenient use.
Description
Technical Field
The invention relates to a device for regenerating a double-bed ion exchange resin after failure in an ion exchange water treatment desalination technology.
Background
At present, a compound bed and a mixed bed in ion exchange water treatment are common equipment in the process of preparing pure water and ultrapure water in the industries of thermal power generation, electronics, pharmacy and the like.
The compound bed is characterized in that the cation resin and the anion resin are respectively arranged in two devices, one is an anode bed, and the other is an anion bed, so that the compound bed is different from a mixed bed in which the two resins are mixed and arranged in one device.
In the compound bed is filled withThe cation bed of the cation resin is used for treating the cation resin after the cation resin fails to work and then a certain concentration of strong acid (such as HCl or H) is used2SO4) Regenerating the cation resin; for cation beds packed with anion resin, the anion resin is regenerated with a strong base (such as NaOH) at a certain concentration, and this method for recovering the exchange capacity of the resin is called chemical regeneration. The regeneration of the acid-base chemical agent has the following disadvantages:
1, the utilization rate of acid and alkali or regenerative medicament is low, and ions which account for a large volume percentage in chemical medicament are not utilized;
2, discharging a large amount of waste acid, waste alkali solution and cleaning wastewater, corroding a sewer, polluting water, destroying ecological balance and polluting environment;
3, the regeneration system is complex and the regeneration operation is various.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the invention provides an electric regeneration device after the failure of a compound bed ion exchange resin.
The complex bed ion exchange resin electric regenerating device is a plate frame type, mainly comprises a membrane stack, an electrode device and an end clamping device, wherein the membrane stack is divided into a plurality of groups of membrane pairs, and is characterized in that: each group of membrane pairs consists of an anion exchange membrane, a hollow partition board of an anion bed resin electric regeneration chamber, a bipolar membrane, a hollow partition board of an cation bed resin electric regeneration chamber, a cation exchange membrane and a hollow partition board of a concentrated water chamber, and the anion bed resin electric regeneration chamber, the cation bed resin electric regeneration chamber and the concentrated water chamber are formed.
The thickness of the hollow partition of the negative and positive resin electric regeneration chamber is 10-20 mm.
The thickness of the hollow partition of the concentrated water chamber is 5mm, the cavity is filled with the resin for electric conduction according to an equal gap filling method, and the uniformity coefficient S of the resin spherulites for electric conduction is less than 1.3.
The anode in the electrode device is a ruthenium-titanium plate, a ruthenium-titanium net, a ruthenium-titanium porous plate or a graphite plate; the cathode is a metal plate, a porous iron plate or a conductive graphite plate.
When the double-bed ion exchange resin electric regeneration device is used, the device is firstly connected with a pipeline of the cation bed resin electric regeneration chamber and is failedThe positive bed in the bed is connected with the negative bed, the pipeline connecting the negative bed resin electric regeneration chamber is connected with the ineffective negative bed, the ineffective resin is pumped into the resin electric regeneration chamber for one or more times by pure water according to a hydraulic conveying method, and the resin electric regeneration chamber is filled. Then electrifying the resin electric regeneration device, and ionizing water at the interface between the resin or membrane (especially bipolar membrane) and water due to polarization H generated by ionization of water+Ions, Ca, of cations of spent cation resin in cation bed resin electrical regeneration chamber2+、Mg2+And Na+When exchange reaction occurs, the ions exchanged from the failed cation resin enter the concentrated water chamber through the cation membrane under the action of electric field force and are discharged; OH formed by ionization of water-Ions, in the anion bed resin electroregeneration chamber, with the anion Cl of the spent anion resin-And SO4 2-And the ions exchanged from the ineffective anion resin enter the concentrated water chamber through the anion membrane under the action of the electric field force and are discharged. The final spent resin was switched from the salt form to H, OH form and the resin was electrically regenerated.
The electric regenerating device of the double-bed ion exchange resin is different from the electric regenerating device of the mixed-bed ion exchange resin in that: the bipolar membrane is added in the structure of the compound bed resin electric regeneration device membrane pair, which is equivalent to that the bipolar membrane is inserted in the middle of the mixed bed resin electric regeneration chamber, and the mixed bed resin electric regeneration chamber is divided into two parts, one part is changed into a positive bed resin electric regeneration chamber in the compound bed, and the other part is changed into a negative bed resin electric regeneration chamber in the compound bed. In this case, under the action of electric field, water is ionized to generate H+And OH-Ions respectively enter the respective cation and anion regeneration chambers to perform exchange reaction with the spent resin and avoid the exchange reactionSpecial Ca of resin for preventing failure of cation bed2+、Mg2+Ions with OH-The ion combination generates the deposition to block the membrane, therefore, the complex bed electric regeneration device can stably run for a long time, the resin electric regeneration effect is good, and the resin electric regeneration effect can be compared with the chemical regeneration method.
The double-bed ion exchange resin electric regeneration device has the beneficial effect of good regeneration effect, and also has the following advantages: acid and alkali chemical agents are not consumed during operation, no waste is discharged, and water and environment are not polluted; only a small amount of electric energy and pure water are consumed, the energy consumption is low, and the economic benefit is excellent; simple operation and convenient use.
Drawings
FIG. 1 is a schematic cross-sectional view of a double bed ion exchange resin electrical regeneration apparatus (double membrane pair).
Fig. 2 is an exploded view of the device (double membrane pair).
In the figure:
1-left clamping plate 2-positive electrode separator
3-positive electrode 4-positive electrode chamber
5-anion exchange membrane6-anion bed resin electric regeneration chamber hollow partition
7-bipolar membrane 8-resin electric regeneration chamber hollow partition plate for anode bed
9-cation exchange membrane 10-concentrated water chamber hollow partition
11-anion exchange resin 12-cation exchange resin
13-conductive resin 14-negative electrode
15-negative electrode chamber 16-negative electrode separator
17-Right clamping plate 18-Membrane Pair
19-bolt
Detailed Description
The electric regenerating device for the double-bed ion exchange resin is further described in detail by combining the attached drawings and the detailed embodiment:
FIG. 1 is a schematic cross-sectional view of a double bed ion exchange resin electrical regeneration apparatus (double membrane pair); fig. 2 is an exploded view of the device (double membrane pair). As can be seen from the attached drawing, the complex bed ion exchange resin electrical regeneration device mainly comprises three parts, namely a membrane stack, an electrode device and an end clamping device, wherein the basic unit of the membrane stack is a membrane pair 18, the membrane stack is formed by combining a plurality of membrane pairs 18, and each membrane pair 18 is sequentially formed by alternately arranging an anion exchange membrane 5, an anion bed resin electrical regeneration hollow partition plate 6, a bipolar membrane 7, an cation bed resin electrical regeneration hollow partition plate 8, a cation exchange membrane 9 and a concentrated water chamber hollow partition plate 10 according to a fixed program. The inlets of the resin electric regeneration chambers of the anion bed and the cation bed are respectively connected with the resin outlets of the deactivated anion bed and the cation bed, and the deactivated anion resin and the deactivated cation resin are respectively sent into the hollow partition plates 6 of the resin electric regeneration chamber of the anion bed and the hollow partition plates 8 of the resin electric regeneration chamber of the cation bed by pure water according to a hydraulic conveying method until the regeneration chambers are filled with the resins. The cavity of the hollow partition plate 10 of the concentrated water chamber is filled with conductive resin 13 so as to reduce the resistance of the concentrated water chamber when the resin electric regeneration device works. The hollow partition plate 6 of the resin electric regeneration chamber of the anion bed is 10-20 mm thick; the hollow partition plate 8 of the cation bed resin electric regeneration chamber is 10-20 mm thick; the thickness of the hollow clapboard 10 of the concentrated water chamber is 5 mm. These separators are made of rigid polypropylene. The anion exchange membrane 5 and the cation exchange membrane 9 can be made of heterogeneous membranes, the membranes and the bipolar membrane 7 are both made of flexible materials, and the flexible materials and the rigid partition plates are pressed together to achieve sealing and water tightness by the deformation of the membranes. The greater the number of membrane pairs 18 arranged in parallel, the greater the number of spent resins that can be electrically regenerated by a single multiple bed ion exchange resin electrical regeneration device.
The electrode device is arranged at two ends of the outer side of the membrane stack and comprises a positive electrode separator 2, a positive electrode 3, a positive electrode chamber 4, a negative electrode 14, a negative electrode chamber 15 and a negative electrode chamber separator 16. The anode in the electrode device isa ruthenium-titanium plate, a ruthenium-titanium net, a ruthenium-titanium porous plate or a graphite plate; the cathode is a metal plate, a porous iron plate or a conductive graphite plate.
The clamping devices are arranged at two ends of the outer side of the electrode device and comprise a left clamping plate 1, a right clamping plate 17 and 16 pairs of bolts 19, and a plurality of membrane pairs 18, a positive electrode separator 2, a negative electrode separator 16, the left clamping plate 1 and the right clamping plate 17 can be compacted into an integral device by screwing nuts on the bolts in a certain sequence.
When the electric regenerating device of the double-bed ion exchange resin is used, a pipeline connected with an electric regenerating chamber of the cation bed resin is connected with the cation bed in the failure double-bed, a pipeline connected with an electric regenerating chamber of the anion bed resin is connected with the failure anion bed, the failure resin is sucked into the electric regenerating chamber of the resin by one time or a plurality of times by pure water according to a hydraulic conveying method, and the electric regenerating chamber of the resin is filled. Then electrifying the resin electric regeneration device, and ionizing water at the interface between the resin or membrane (especially bipolar membrane) and water due to polarization H + ions generated by water ionization and Ca cations of the failed cation resin in the cation bed resin electrical regeneration chamber2+、Mg2+And Na+When exchange reaction occurs, the ions exchanged from the failed cation resin enter the concentrated water chamber through the cation membrane under the action of electric field force and are discharged; OH formed by ionization of water-Ions, in the anion bed resin electroregeneration chamber, with the anion Cl ofthe spent anion resin-And SO4 2-The exchange reaction occurs, and the ions exchanged from the spent anion resin are subjected toThe electric field force is acted and discharged from the cathode film into the concentrated water chamber. In this case, Ca peculiar to cation bed failure resin is avoided2+、Mg2+Ions with OH-The ions combine to form a precipitate that can clog the membrane. The final spent resin was switched from the salt form to H, OH form and the resin was electrically regenerated.
The complex bed ion exchange resin electric regeneration device can stably run for a long time, and the resin electric regeneration effect is good; acid and alkali chemical agents are not consumed during operation, no waste is discharged, and water and environment are not polluted; only a small amount of electric energy and pure water are consumed, the energy consumption is low, and the economic benefit is excellent; simple operation and convenient use.
Claims (5)
1. The complex bed ion exchange resin electric regenerating device is a plate frame type, mainly comprises a membrane stack, an electrode device and an end clamping device, wherein the membrane stack is divided into a plurality of groups of membrane pairs, and is characterized in that: each group of membrane pairs consists of an anion exchange membrane, a hollow partition board of an anion bed resin electric regeneration chamber, a bipolar membrane, a hollow partition board of an cation bed resin electric regeneration chamber, a cation exchange membrane and a hollow partition board of a concentrated water chamber, and the anion bed resin electric regeneration chamber, the cation bed resin electric regeneration chamber and the concentrated water chamber are formed.
2. The apparatus for electrically regenerating a complex bed ion exchange resin according to claim 1, wherein: the thickness of the hollow partition of the resin electric regeneration chamber of the anion bed and the cation bed is 10-20 mm.
3. The apparatus for electrically regenerating a complex bed ion exchange resin according to claim 1, wherein: the thickness of the hollow partition of the concentrated water chamber is 5mm, conductive resin is filled in the hollow cavity according to an equal gap filling method, and the uniformity coefficient S of the conductive resin spherulites is less than or equal to 1.3.
4. The apparatus for electrically regenerating a complex bed ion exchange resin according to claim 1, wherein: the anode of the electrode device is a ruthenium titanium plate, a titanium nailing net, a titanium nailing porous plate or a graphite plate.
5. The apparatus for electrically regenerating a complex bed ion exchange resin according to claim 1, wherein: the cathode of the electrode device is a metal plate, a porous iron plate or a conductive graphite plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009028 CN2739170Y (en) | 2004-05-14 | 2004-05-14 | Composite bed ion exchange resin electro-regenerating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420009028 CN2739170Y (en) | 2004-05-14 | 2004-05-14 | Composite bed ion exchange resin electro-regenerating device |
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| Publication Number | Publication Date |
|---|---|
| CN2739170Y true CN2739170Y (en) | 2005-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420009028 Expired - Fee Related CN2739170Y (en) | 2004-05-14 | 2004-05-14 | Composite bed ion exchange resin electro-regenerating device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880074A (en) * | 2010-06-28 | 2010-11-10 | 浙江大学 | Electric regenerating device for inactive ion exchange resin |
| CN104840164A (en) * | 2015-05-18 | 2015-08-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine |
| 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 |
| 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 |
| 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 |
| CN114014415A (en) * | 2021-10-27 | 2022-02-08 | 杨晓刚 | Continuous regeneration deionization cation exchanger and anion exchanger system by using direct-current power supply |
-
2004
- 2004-05-14 CN CN 200420009028 patent/CN2739170Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101880074A (en) * | 2010-06-28 | 2010-11-10 | 浙江大学 | Electric regenerating device for inactive ion exchange resin |
| CN104840164A (en) * | 2015-05-18 | 2015-08-19 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine |
| CN104840164B (en) * | 2015-05-18 | 2017-12-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Dish-washing machine |
| 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 |
| 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 |
| 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 |
| CN114014415A (en) * | 2021-10-27 | 2022-02-08 | 杨晓刚 | Continuous regeneration deionization cation exchanger and anion exchanger system by using direct-current power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20051109 Termination date: 20100514 |