CN212315665U - Multi-type water outlet electric deionization device and water treatment equipment thereof - Google Patents
Multi-type water outlet electric deionization device and water treatment equipment thereof Download PDFInfo
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- CN212315665U CN212315665U CN202020326015.8U CN202020326015U CN212315665U CN 212315665 U CN212315665 U CN 212315665U CN 202020326015 U CN202020326015 U CN 202020326015U CN 212315665 U CN212315665 U CN 212315665U
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Abstract
A multi-species effluent electrodeionization device and water treatment equipment thereof comprise at least one pair of metal electrodes and an ion exchange membrane positioned between the metal electrodes; a first polar chamber between one metal electrode and the adjacent ion exchange membrane generates first polar water, a second polar chamber between the other metal electrode and the adjacent ion exchange membrane generates second polar water, and a desalination flow channel between the ion exchange membrane and the ion exchange membrane generates pure water; the first polar water, the second polar water and the pure water are respectively and independently led out; or at least one of the first polar water and the second polar water is mixed with all or part of pure water and then is led out. The invention adopts the structure that the ion exchange membrane is arranged between the metal electrodes, and the polar water and the pure water are separately led out or the polar water is mixed with the pure water to be led out, so that various effluent such as oxidized water, reduced water and the like can be provided without adding the metal electrodes in a waterway system, and the diversified demands of domestic water are met.
Description
Technical Field
The utility model relates to a water treatment technical field, in particular to multiple type goes out water electrodeionization device and has device's water treatment facilities.
Background
Water purifiers play an increasingly important role in people's life. After the water purifier removes impurities such as residual chlorine and organic matter particles in water through BP cotton and a carbon rod to treat raw water, domestic water or mineral water is usually produced. Some water purifiers also add ultrafiltration to remove bacteria. In addition, some water purifiers remove heavy metals, hardness, salt, and the like, mainly characterized by TDS reduction, in addition to the above-mentioned contaminants, and produce pure water, which is mostly realized by reverse osmosis, nanofiltration, and electrodeionization devices. However, due to the limitation of the types of filter elements, the water purifier can only produce two types of water generally, and cannot meet the trend of diversification of domestic water.
There are also some water purifiers that provide acidic or alkaline water, however, such water purifiers require a separate metal electrode in the system water circuit to generate oxidized or reduced water, and the water circuit is complicated.
Therefore, in view of the shortcomings of the prior art, it is necessary to provide a multi-type effluent electrodeionization device capable of generating oxidized water and reduced water without separately providing a metal electrode in a water channel, and a water treatment apparatus having the same.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to avoid prior art's weak point and provide a multiple type of water electrodeionization device and have device's water treatment facilities, can directly produce oxidation water and reduction water, and need not increase metal electrode in the system water route.
The purpose of the utility model is realized through the following technical measures.
Providing a multi-species effluent electrodeionization device, which comprises at least one pair of metal electrodes and an ion exchange membrane positioned between the metal electrodes;
a first polar chamber between one metal electrode and the adjacent ion exchange membrane generates first polar water, a second polar chamber between the other metal electrode and the adjacent ion exchange membrane generates second polar water, and a desalination flow channel between the ion exchange membrane and the ion exchange membrane generates pure water;
the first polar water, the second polar water and the pure water are respectively and independently led out; or at least one of the first polar water and the second polar water is mixed with all or part of pure water and then is led out.
Preferably, in the above multi-type effluent electrodeionization device, the first polar water, the second polar water and the pure water are separately extracted;
the first polar water is conveyed to the water outlet terminal through the first pipeline, the second polar water is conveyed to the water outlet terminal through the second pipeline, and the pure water is conveyed to the water outlet terminal through the pure water pipeline.
Preferably, in the multi-type effluent electrodeionization device, the pure water pipeline is provided with a split flow guide mechanism, a water inlet end of the split flow guide mechanism is communicated with a pure water port of the multi-type effluent electrodeionization device, a first output end of the split flow guide mechanism is communicated with the first pipeline, a second output pipeline of the split flow guide mechanism is communicated with the second pipeline, and a third output end of the split flow guide mechanism is communicated with the pure water pipeline;
the shunt guide mechanism controls the conduction or the closing of the first output end, the second output end and the third output end.
Preferably, in the above multi-type effluent electrodeionization device, the diversion guide mechanism is a four-way valve.
Preferably, in the above multi-type effluent electrodeionization device, the ion exchange membrane is a bipolar membrane, at least one bipolar membrane is arranged between two metal electrodes, the bipolar membrane is composed of a cation exchange membrane and an anion exchange membrane which are attached together, and no flow channel is formed between the cation exchange membrane and the anion exchange membrane which form the same bipolar membrane.
Preferably, in the above-described multi-type effluent electrodeionization apparatus, the bipolar membranes are arranged in the same orientation.
Preferably, the above-described multi-effluent electrodeionization apparatus, further comprising: the bipolar membranes are set to 1 to 50 sheets.
Preferably, the multi-type effluent electrodeionization device is further provided with a concentration adjusting pipeline, the concentration adjusting pipeline is introduced into the raw water inlet, and the concentrated water adjusting pipeline is introduced into the reverse osmosis or nanofiltration concentrated water.
Preferably, the above-mentioned electrodeionization device for various effluents is an electrodialysis, reverse electrodialysis or continuous electrodeionization device.
The utility model discloses provide a water treatment facilities simultaneously, have foretell multiple type of water electrodeionization device.
The utility model discloses a multi-type effluent electrodeionization device and water treatment equipment thereof, which comprises at least one pair of metal electrodes and an ion exchange membrane positioned between the metal electrodes; a first polar chamber between one metal electrode and the adjacent ion exchange membrane generates first polar water, a second polar chamber between the other metal electrode and the adjacent ion exchange membrane generates second polar water, and a desalination flow channel between the ion exchange membrane and the ion exchange membrane generates pure water; the first polar water, the second polar water and the pure water are respectively and independently led out; or at least one of the first polar water and the second polar water is mixed with all or part of pure water and then is led out. This multiple type of play water electrodeionization device and water treatment facilities thereof adopts the structure that sets up ion exchange membrane between the metal electrode to draw pole water, pure water alone or mix pole water into the pure water and draw forth, need not increase metal electrode in waterway system and just can provide multiple type of play water such as oxidation water, reduction water, satisfy domestic water diversified demand.
Drawings
The present invention will be further described with reference to the accompanying drawings, but the contents in the drawings do not constitute any limitation to the present invention.
FIG. 1 is a schematic diagram of the desalination states of a multi-type effluent electrodeionization device of embodiment 4 of the present invention.
Fig. 2 is a schematic structural diagram of a multi-type effluent electrodeionization device according to embodiment 5 of the present invention.
FIG. 3 is a schematic view of the various types of electrodeionization devices of FIG. 2 in a reverse polarity configuration.
In fig. 1 to 3, the following are included:
a metal electrode 100, a metal electrode 200,
Detailed Description
The present invention will be further illustrated with reference to the following examples.
Reference herein to "deionization" is to the removal of ions from the liquid to be treated, including anions and cations in various valence states. In most cases, "deionization" has the same meaning as "desalination". In some cases, deionization is also referred to as demineralization.
Example 1.
A multi-species effluent electrodeionization device at least comprises a pair of metal electrodes and an ion exchange membrane positioned between the metal electrodes.
The metal electrode may be titanium, titanium with a plating layer, platinum, gold, ruthenium yttrium, or the like. The ion exchange membrane between the metal electrodes can be more than one anion exchange membrane and one cation exchange membrane which are arranged at intervals, can also be more than one bipolar membrane, and can also be in the forms of bipolar membranes, ion exchange membranes, cation exchange membranes, mixture and the like. The formed multi-type effluent electrodeionization device can be an electrodialysis device, a reverse electrodialysis device, a continuous electrodeionization device, a bipolar membrane electrodeionization device and the like.
The first polar chamber between one metal electrode and the adjacent ion exchange membrane generates first polar water, the second polar chamber between the other metal electrode and the adjacent ion exchange membrane generates second polar water, the desalination flow channel between the ion exchange membrane and the ion exchange membrane generates pure water, and the first polar water, the second polar water and the pure water are respectively and independently led out.
When the multi-type effluent electrodeionization device is provided with a plurality of pairs of metal electrodes, the first polar water, the second polar water and the pure water are respectively and independently led out, and the two conditions are included, wherein one condition is that each kind of water is led out independently and then the same kind of water is hydrated and integrally led out, and the other condition is that the same kind of water is combined and then the combined water is led out.
Under the action of the electric field, the anode generates oxidizing substances, such as hydroxyl radicals, oxygen radicals, sodium hypochlorite and other active substances. The substances are directly led out to a water outlet through a water path to prepare water with oxidation activity for sterilization or pesticide residue removal. Similarly, under the action of an electric field, the polar chamber where the cathode is located can generate hydrogen and reductive substances, and the substances are directly led out to the water outlet through the water path to prepare the reductive water.
The multi-type effluent electrodeionization device of the embodiment does not need to separately add a metal electrode in a water channel, and directly utilizes the electrode chamber where the metal electrode and the adjacent ion exchange membrane are positioned to produce oxidizing water and reducing water. The deionization apparatus can produce various kinds of effluent, and can produce oxidizing water and reducing water in addition to pure water. The oxidizing water can be used for sterilizing and cleaning, removing pesticide residues on vegetables and fruits, and the reducing water can be drunk or used for cultivating fish and watering flowers, so that various water is provided for people.
Example 2.
A multi-species effluent electrodeionization apparatus having the same other features as in example 1 except that: at least one of the first polar water and the second polar water is mixed with all or part of pure water and then is led out. The pure water and the polar water are mixed and then led out, the concentration of the polar water can be adjusted, and the oxidizing water and the reducing water with the required concentration can be obtained.
Example 3.
A multi-species effluent electrodeionization apparatus having the same other features as in example 1 except that: the first polar water is conveyed to the water outlet terminal through the first pipeline, the second polar water is conveyed to the water outlet terminal through the second pipeline, and the pure water is conveyed to the water outlet terminal through the pure water pipeline. The mode can realize that each path of water required is independently conveyed to the water outlet terminal.
It should be noted that the first pipeline, the second pipeline and the pure water pipeline may be provided with a switch valve as required, and the switch valve may be provided in the corresponding pipeline as required by those skilled in the art according to the water flow control requirement, and no special explanation is provided herein.
The pure water pipeline can be also provided with a shunt guide mechanism, the water inlet end of the shunt guide mechanism is communicated with pure water ports of the multi-type water outlet electric deionization device, the first output end of the shunt guide mechanism is communicated with the first pipeline, the second output pipeline of the shunt guide mechanism is communicated with the second pipeline, and the third output end of the shunt guide mechanism is communicated with the pure water pipeline. The first output end of the shunting guide mechanism is opened, and when other output ends are closed, the water making of the flow channel has first polar water to mix and flow out. When the second output end is opened and the first output end and the third output end are closed, the second pipeline outputs pure water. When the first output end and the second output end are partially opened, pure water respectively enters the first pipeline and the second pipeline to respectively dilute the reduction water and the oxidation water. Through reposition of redundant personnel guiding mechanism for the mode and the kind of play water are nimble more various.
The diversion guide mechanism may be configured as a four-way valve or other electronic valve or other diversion device.
Example 4.
The other characteristics of the multi-type effluent electrodeionization device are the same as those of the embodiment 1, and the ion exchange membrane arranged between the electrodes in the embodiment is a bipolar membrane, so that the bipolar membrane electrodeionization device is formed.
The bipolar membrane consists of a cation exchange membrane and an anion exchange membrane which are attached together, and no flow channel is arranged between the cation exchange membrane and the anion exchange membrane which form the same bipolar membrane. Generally, in a manner that a plurality of bipolar membranes are arranged in the same orientation, the bipolar membrane between a pair of electrode pairs can be provided in more than one sheet.
Taking the bipolar membrane electrodeionization device of fig. 1 as an example, two bipolar membranes 300 are disposed between the metal electrodes 100 and 200, the arrangement directions of the two bipolar membranes 300 are the same, the same arrangement direction means the same orientation of the cation exchange membrane 310 of each bipolar membrane 300, and of course, the same orientation of the anion exchange membrane 320 of each corresponding bipolar membrane 300 is also necessarily the same. It should be noted that the number of the bipolar membranes 300 is not limited to two in this embodiment, and can be flexibly set according to actual needs, and the number of the bipolar membranes 300 between the metal electrode pairs is generally 1-50, or even more.
The bipolar membrane 300 is composed of a cation exchange membrane 310 and an anion exchange membrane 320 which are attached together, and the cation exchange membrane 310 and the anion exchange membrane 320 which form the same bipolar membrane are clamped tightly without a binder; the cation exchange membrane 310 and the anion exchange membrane 320 may be formed by thermal lamination. There is no flow channel between the cation exchange membrane 310 and the anion exchange membrane 320, and a flow channel is formed between the bipolar membrane and the bipolar membrane or between the bipolar membrane and the metal electrode. The bipolar membranes sold in the market can be used as the bipolar membranes in the scheme, and the details are not repeated.
The bipolar membrane electrodeionization device does not need to be additionally provided with a metal electrode in a water path, and oxidizing water and reducing water are produced by directly utilizing a polar chamber where the metal electrode and an adjacent ion exchange membrane are positioned. Can produce various effluent, and can produce oxidizing water and reducing water besides pure water.
The various types of effluent electrodeionization devices of the present embodiment may be in the form of a plate frame or a spiral coil, and may have a rectangular parallelepiped, a cube, a cylindrical shape, or the like. Fig. 1 in this embodiment is a schematic cross-sectional view, and a person skilled in the art can obtain products of various shapes according to the form.
Example 5.
The other characteristics of the multi-species effluent electrodeionization device are the same as those of the embodiment 1, and in the embodiment, a plurality of cation exchange membranes and anion exchange membranes which are alternately arranged are arranged between electrodes.
"alternately arranged cation exchange membranes and anion exchange membranes" means an arrangement such as ACACACACAC where a represents an anion exchange membrane and C represents a cation exchange membrane, but if due to assembly errors or other reasons, repeated arrangement of one or more cation exchange membranes or anion exchange membranes, such as ACACACACCAC arrangement, does not affect the deionization function of the stack, but merely causes two adjacent flow channels to be either a dilute chamber flow channel or a dense chamber flow channel, which should be considered as a variation based on the embodiments of the present invention and still fall within the scope of the present invention. It is not departing from the scope of the present invention for one or more cation exchange membranes or anion exchange membranes to be repeatedly arranged, thereby causing the anion exchange membranes and the cation exchange membranes not to be strictly alternately arranged.
An embodiment of the present invention will be described below with reference to fig. 2. A and C in the drawings represent an anion exchange membrane and a cation exchange membrane, respectively. The cation exchange membranes and the anion exchange membranes which are alternately arranged correspondingly form a dilute chamber flow passage or a concentrated chamber flow passage, raw water is desalted through the dilute chamber flow passage to produce pure water, and the water passing through the concentrated chamber flow passage produces concentrated water. The dilute chamber channel is the desalination channel described in this patent.
The metal electrode 100 applies a positive voltage and the metal electrode 200 applies a negative voltage. In the first polar chamber, oxidizing substances, such as active substances, such as hydroxyl radicals, oxygen radicals, sodium hypochlorite and the like, are generated, and the substances are directly led out to the water outlet through the water path to prepare water with oxidizing activity. And hydrogen and reductive substances are generated in the second pole chamber, and the substances are directly led out to the water outlet through the water path to prepare reductive water. Fresh water is produced in the corresponding desalting flow passage, concentrated water is produced in the flow passage of the opposite concentrated chamber, and the concentrated water is generally discharged as waste water.
It can be seen that pure water, oxidized water, and reduced water can be supplied by the electrodeionization device. The bipolar membrane electrodeionization device does not need to be additionally provided with a metal electrode in a water path, and oxidizing water and reducing water are produced by directly utilizing a polar chamber where the metal electrode and an adjacent ion exchange membrane are positioned. Can produce various effluent, and can produce oxidizing water and reducing water besides pure water.
When the two electrodes 100, 200 are reversed in polarity, as shown in fig. 3. The water content of the corresponding flow channel or polar chamber is correspondingly changed, and the description is omitted.
Example 6.
A multi-species effluent electrodeionization apparatus having the same other features as in examples 1 to 5 except that: the device is also provided with a concentration adjusting pipeline, the concentration adjusting pipeline is introduced into the raw water inlet, and the concentrated water adjusting pipeline is introduced into the reverse osmosis or nanofiltration concentrated water, so as to achieve the effect of adjusting the concentration of the oxidizing substance or the reducing substance. The concentration of the oxidizing/reducing species is related to the current of the stack, i.e., the lower the resistance of the water, the higher the current, and the higher the concentration.
Example 7.
A water treatment apparatus having a plurality of types of effluent electrodeionization devices as described in any one of embodiments 1 to 6, the water treatment apparatus being useful for industrial or domestic water treatment. Examples of uses of industrial water treatment facilities mentioned herein include, but are not limited to, industrial sewage treatment, municipal sewage treatment, seawater desalination, brine treatment, river and lake water treatment, cheese whey demineralization, and the like. The industrial water treatment facility includes, in addition to the various types of effluent electrodeionization devices of embodiments of the invention, one or more of, for example, flocculation and/or coagulation units, advanced oxidation units, adsorption units, electrolysis units, membrane separation units (including one or more of microfiltration, ultrafiltration, nanofiltration and reverse osmosis).
The utility model discloses domestic water treatment facilities, except the utility model discloses multiple type of play water electrodeionization device of embodiment generally still includes for example in ultrafiltration, receive and strain, active carbon adsorption unit, the ultraviolet sterilization unit one or more.
The water treatment apparatus can supply pure water, oxidized water and reduced water. The oxidizing water and the reducing water are produced by directly utilizing the polar chamber where the metal electrode and the adjacent ion exchange membrane are positioned without independently adding a metal electrode in a water path.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a multiple type of play water electrodeionization device which characterized in that: comprises at least one pair of metal electrodes and an ion exchange membrane positioned between the metal electrodes;
a first polar chamber between one metal electrode and the adjacent ion exchange membrane generates first polar water, a second polar chamber between the other metal electrode and the adjacent ion exchange membrane generates second polar water, and a desalination flow channel between the ion exchange membrane and the ion exchange membrane generates pure water;
the first polar water, the second polar water and the pure water are respectively and independently led out; or at least one of the first polar water and the second polar water is mixed with all or part of pure water and then is led out.
2. The multi-species effluent electrodeionization apparatus of claim 1 wherein: the first polar water, the second polar water and the pure water are respectively and independently led out;
the first polar water is conveyed to the water outlet terminal through the first pipeline, the second polar water is conveyed to the water outlet terminal through the second pipeline, and the pure water is conveyed to the water outlet terminal through the pure water pipeline.
3. The multi-species effluent electrodeionization apparatus of claim 2 wherein:
the pure water pipeline is provided with a shunt guide mechanism, the water inlet end of the shunt guide mechanism is communicated with pure water ports of the multi-type water outlet electric deionization device, the first output end of the shunt guide mechanism is communicated with the first pipeline, the second output pipeline of the shunt guide mechanism is communicated with the second pipeline, and the third output end of the shunt guide mechanism is communicated with the pure water pipeline;
the shunt guide mechanism controls the conduction or the closing of the first output end, the second output end and the third output end.
4. The multi-species effluent electrodeionization apparatus of claim 3 wherein: the diversion guide mechanism is set as a four-way valve.
5. The electrodeionization apparatus of any one of claims 1 to 4, wherein: the ion exchange membrane is a bipolar membrane, at least one bipolar membrane is arranged between two metal electrodes, the bipolar membrane is composed of a cation exchange membrane and an anion exchange membrane which are attached together, and no flow channel is arranged between the cation exchange membrane and the anion exchange membrane which form the same bipolar membrane.
6. The multi-species effluent electrodeionization apparatus of claim 5 wherein: the arrangement orientation of the bipolar membranes is the same.
7. The multi-species effluent electrodeionization apparatus of claim 5 wherein: the bipolar membranes are set to 1 to 50 sheets.
8. The electrodeionization apparatus of any one of claims 1 to 4, wherein: is an electrodialysis, reverse electrodialysis and continuous electrodeionization device.
9. The electrodeionization apparatus of any one of claims 1 to 4, wherein: the concentration adjusting pipeline is also arranged, the raw water inlet is introduced into the concentration adjusting pipeline, and the reverse osmosis or nanofiltration concentrated water is introduced into the concentrated water adjusting pipeline.
10. A water treatment apparatus characterized by: a plurality of species of effluent electrodeionization apparatus as claimed in any one of claims 1 to 9 is provided.
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| CN202020326015.8U CN212315665U (en) | 2020-03-16 | 2020-03-16 | Multi-type water outlet electric deionization device and water treatment equipment thereof |
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| CN202020326015.8U CN212315665U (en) | 2020-03-16 | 2020-03-16 | Multi-type water outlet electric deionization device and water treatment equipment thereof |
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