CN113929194A - Water treatment device - Google Patents
Water treatment device Download PDFInfo
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- CN113929194A CN113929194A CN202010606207.9A CN202010606207A CN113929194A CN 113929194 A CN113929194 A CN 113929194A CN 202010606207 A CN202010606207 A CN 202010606207A CN 113929194 A CN113929194 A CN 113929194A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
- C02F1/4695—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis electrodeionisation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
Abstract
The invention provides a water treatment device, comprising: the device comprises a processing cavity group, a plurality of groups of film stacks are formed in the processing cavity group, and each group of film stacks comprises a first processing chamber and a second processing chamber which are adjacent; two electrodes with different polarities are respectively arranged at two sides of the processing cavity group, wherein the flow directions of fluids in the first processing chamber and the second processing chamber in each group of membrane stacks are opposite, and the first processing chamber in one group of membrane stacks close to one electrode is communicated with the first processing chamber and the second processing chamber in one group of membrane stacks close to the other electrode. According to the technical scheme, the plurality of groups of membrane stacks are connected in series to form the series-connected water channel, and the flow directions of the fluids of the two treatment chambers in each group of membrane stacks are limited to be opposite, so that when water is purified, the fresh water subjected to first treatment can flow to the next membrane stack, the desalination rate can be improved, the concentration difference between the two treatment chambers can be effectively reduced, the adverse effect of osmotic pressure on purification of a water channel system is further reduced, and the purification effect can be effectively improved.
Description
Technical Field
The invention relates to the field of water purification, in particular to a water treatment device.
Background
The domestic water purifier generally adopts active carbon or external filter to realize getting rid of aquatic impurity, however in actual life, active carbon and filter all belong to the consumptive material class, and the user often has to additionally spend owing to need change the consumptive material, influences the use of product, among the prior art, some water purification unit adopt the electrodialysis technique to realize purifying, however in the course of the work, the concentration of waste water is great, can take place the water route scale deposit, and equipment very easily takes place to damage.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
In view of the above, an object of the present invention is to provide a water treatment device.
In order to achieve the above object, an aspect of the present invention provides a water treatment apparatus including: the device comprises a processing cavity group, wherein a plurality of groups of film stacks are formed in the processing cavity group, each group of film stacks comprises a first processing chamber and a second processing chamber which are adjacent, and the ion concentration of fluid in the first processing chamber in each group of film stacks is smaller than that of fluid in the second processing chamber; and the electrode group comprises two electrodes with different polarities, the two electrodes are respectively arranged on two sides of the processing cavity group, the flow directions of fluids in the first processing chamber and the second processing chamber in each group of membrane stacks are opposite, and the first processing chamber in one group of membrane stacks close to one electrode is communicated with the first processing chamber and the second processing chamber in one group of membrane stacks close to the other electrode.
According to the water treatment device provided by the technical scheme of the first aspect of the invention, the water treatment device comprises a treatment cavity group and an electrode group, specifically, a plurality of groups of membrane stacks can be formed in the treatment cavity group, each group of membrane stacks comprises a first treatment chamber and a second treatment chamber which are adjacent and used for containing water, the electrode group comprises two electrodes with different polarities, generally, the two electrodes are respectively an anode electrode and a cathode electrode, the two electrodes are respectively arranged at two sides of the treatment cavity group, an electric field for covering the treatment cavity group can be formed when the treatment cavity group is electrified, and because a plurality of first treatment chambers and a plurality of second treatment chambers can be formed in the treatment cavity group, under the action of the electric field, fluids with different ion concentrations can be formed in the first treatment chamber and the second treatment chamber, so that water is purified, namely, when the fluids respectively flow through the first treatment chamber and the second treatment chamber, anions and cations and anions in the fluids are driven to move under the action of the electric field, so as to achieve the effect of separating the thick water and the thin water, and the fluid with lower ion concentration can be understood as the thin water formed after purifying the water.
It should be noted that, for each group of membrane stacks, the fluid flow directions of the first processing chamber and the second processing chamber are opposite, for example, the membrane stack integrally includes a first end and a second end, the fluid flow direction in the first processing chamber is from the first end to the second end, the fluid flow direction in the second processing chamber is from the second end to the first end, and ions of the fluid between the first processing chamber and the second processing chamber can permeate each other, so that the concentration of the ions in the first processing chamber and the second processing chamber can be changed, so that the concentrations of the first end of the first processing chamber and the first end of the second processing chamber can be kept approximately the same, and the concentration difference between the two processing chambers can be effectively reduced, thereby reducing the adverse effect of osmotic pressure on the purification of the water channel system, and effectively improving the purification effect. In addition, the number of the membrane stacks is multiple, one of the first treatment chambers is communicated with one of the second treatment chambers to form a serial water path, so that when water is purified, fresh water subjected to primary treatment can flow to the combination of the next first treatment chamber and the second treatment chamber, secondary purification is performed, and if the serial number of the first treatment chamber and the second treatment chamber is increased, the purification stage number can be increased to realize multistage purification, namely, the effect of multiple desalination can be achieved through one electrode group.
Furthermore, the first treatment chamber and the second treatment chamber can be used as main treatment modules of the reverse-electrode electrodialysis membrane stack, ions of fluid in the first treatment chamber can permeate each other under the action of an electric field, and when fresh water is stored in the first treatment chamber, concentrated water is stored in the second treatment chamber, or when fresh water is stored in the second treatment chamber, concentrated water is stored in the first treatment chamber.
In above-mentioned technical scheme, the processing cavity group includes a plurality of ion exchange membranes, forms first treatment chamber and the second treatment chamber of interval setting between a plurality of ion exchange membranes.
In the technical scheme, the treatment cavity group is limited to comprise a plurality of ion exchange membranes which can form a first treatment chamber and a second treatment chamber which are separated from each other, an electric field can be generated on the ion exchange membranes under the action of the electrode group so that ions can selectively permeate through the ion exchange membranes, such as anions or cations, under the action of each ion exchange membrane, and under the action of the plurality of ion exchange membranes, the electrodialysis purification of water flowing into a water purification structure and the electrode reversal when the electrode voltage is converted are facilitated.
In the above technical solution, the number of the ion exchange membranes is plural, and the ionic properties of any two adjacent ion exchange membranes are different.
In the technical scheme, a plurality of ion exchange membranes are arranged, and the ion type difference of two adjacent ion exchange membranes is limited, namely the ion exchange membrane adjacent to the cation exchange membrane is an anion exchange membrane, and the ion exchange membrane adjacent to the anion exchange membrane is a cation exchange membrane, so that the selective movement of ions is realized for each treatment chamber, such as a first treatment chamber or a second treatment chamber, under the action of an electrode group, and the separation and purification of the concentrated fresh water are realized.
In the technical scheme, the number of the ion exchange membranes is five, four treatment cavities are formed among the five ion exchange membranes, two of the four treatment cavities at intervals form a first treatment chamber, and the other two treatment chambers form a second treatment chamber.
In this technical solution, by providing five ion exchange membranes, four processing chambers can be formed therebetween, and by forming a first processing chamber and a second processing chamber from two of the four processing chambers that are separately disposed, the ionic properties of ions in fluids on both sides of each ion exchange membrane can be effectively utilized, in short, under the action of electrodes, the ionic properties of the five ion exchange membranes are sequentially anion-cation-anion, when both sides of a processing chamber are respectively anion-cation, it can be defined as a first processing chamber, when both sides of a processing chamber are respectively cation-anion, it can be defined as a second processing chamber, so as to reduce the arrangement of unnecessary exchange membranes, and form a plurality of processing chambers to the maximum extent under the action of the limited ion exchange membranes, so as to reduce unnecessary production costs.
Particularly, on the basis of arranging the fixed flow path, each ion exchange membrane can selectively permeate ions so as to realize the normal action of pole inversion and prolong the service life of the membrane stack.
In the above technical solution, at least a portion of each ion exchange membrane is disposed in an electric field formed by an electrode group, and the electrode group includes a first electrode and a second electrode, wherein a processing chamber close to the first electrode is a first processing chamber, and a processing chamber close to the second electrode is a second processing chamber.
In this solution, by defining the portion of each ion exchange membrane that is present within the electric field, the movement of ions in the fluid placed within the electric field can be driven, thereby achieving a variation of the ion concentration within the different chambers.
Of course, it can be understood that the more overlapping regions of two adjacent ion exchange membranes in the electric field, the higher the purification effect on the fluid.
In addition, it is necessary to define that the first treatment chamber is disposed adjacent to the first electrode and the second treatment chamber is disposed adjacent to the second electrode, and generally, the number of the stacks is an integer, thereby facilitating the interval arrangement of the first treatment chamber and the second treatment chamber, and further, by disposing the first treatment chamber adjacent to the first electrode, facilitating the subsequent division of the concentrate chamber and the dilute chamber.
In the above technical solution, the method further comprises: and the water inlet pipeline is respectively communicated with the adjacent first treatment chamber and the second treatment chamber which are close to the first electrode.
In the technical scheme, the water inlet pipeline connected with the first processing chamber and the second processing chamber which are arranged close to the first electrode and adjacent to each other is arranged, so that fluid flowing in through the water inlet pipeline can be preliminarily purified under the action of the water inlet pipeline and the water inlet pipeline, namely, the movement of ions in the fluid is controlled between the adjacent first processing chamber and the adjacent second processing chamber.
In the above technical solution, the method further comprises: the first water inlet valve is arranged on a part of the water inlet pipeline communicated with the first treatment chamber close to the first electrode and is used for controlling the flow of inlet water flowing into the first treatment chamber close to the first electrode; and the second water inlet valve is arranged on a part of the water inlet pipeline communicated with the second treatment chamber close to the first electrode and is used for controlling the flow of inlet water flowing into the second treatment chamber close to the first electrode.
In the technical scheme, the proportion of the inflow rate of water flowing into the first treatment chamber and the second treatment chamber close to the first electrode can be adjusted by arranging the first water inlet valve and the second water inlet valve, specifically, the first water inlet valve controls the inflow rate of water flowing into the first treatment chamber close to the first electrode, and the second water inlet valve controls the inflow rate of water flowing into the second treatment chamber close to the first electrode, so that the water pressure in the water purification process is controlled, the problems of water leakage or desalination rate reduction and the like of a membrane stack in a waterway system caused by overlarge pressure are prevented, and the service life of the equipment is prolonged.
It is to be understood that the first and second process chambers adjacent to the first electrode are the first and second process chambers which are located close to the first electrode when the first and second electrodes are located.
In the above technical solution, the method further comprises: the first inverted pole water outlet pipe is communicated with a water outlet of the first processing chamber close to the second electrode; and the second inverted pole water outlet pipe is communicated with a water outlet of the second processing chamber close to the second electrode, wherein the ion concentrations of the fluids discharged from the first inverted pole water outlet pipe and the second inverted pole water outlet pipe are different.
In the technical scheme, the first inverted-pole water outlet pipe and the second inverted-pole water outlet pipe which are respectively communicated with the first treatment chamber and the second treatment chamber close to the second electrode are arranged, and fresh water and concentrated water which are subjected to secondary purification can be discharged outwards through the two pipelines.
In the above technical solution, the method further comprises: and one end of the auxiliary water inlet pipeline is communicated with the first treatment chamber close to the first electrode, and the other end of the auxiliary water inlet pipeline is respectively communicated with the first treatment chamber close to the second electrode and the second treatment chamber close to the second electrode through a third water inlet valve and a fourth water inlet valve, wherein the third water inlet valve is used for controlling the flow of inlet water flowing into the first treatment chamber close to the second electrode, and the fourth water inlet valve is used for controlling the flow of inlet water flowing into the first treatment chamber close to the second electrode.
In the technical scheme, the auxiliary water inlet pipeline is arranged to enable the first treatment chamber and the second treatment chamber which are close to the first electrode to be communicated with the first treatment chamber and the second treatment chamber which are close to the second electrode, so that fresh water generated after primary purification can be introduced into the next procedure, and secondary purification is realized under the action of the first treatment chamber and the second treatment chamber which are close to the second electrode.
In addition, the third water inlet valve and the fourth water inlet valve are respectively used for controlling the inflow of water flowing into the first treatment chamber and the second treatment chamber close to the second electrode, and it can be understood that water flowing into the membrane stack close to the second electrode flows out of the first treatment chamber close to the first electrode, and the third water inlet valve and the fourth water inlet valve are arranged, so that the flow entering the latter membrane stack for dialysis can be controlled, and the final freshwater flow can be controlled more favorably.
In the above technical solution, the method further comprises: and the controller is electrically connected with the first water inlet valve, the second water inlet valve, the third water inlet valve and the fourth water inlet valve, and can control the opening degrees of the valve ports of the first water inlet valve, the second water inlet valve, the third water inlet valve and the fourth water inlet valve.
In the technical scheme, the controller which is respectively electrically connected with the first water inlet valve, the second water inlet valve, the third water inlet valve and the fourth water inlet valve is arranged, so that the opening degrees of the valve ports of the four water inlet valves can be respectively controlled, the water pressure of the first treatment chamber and the water pressure of the second treatment chamber which are subjected to primary purification and secondary purification can be conveniently controlled, and the whole normal operation of the equipment is facilitated.
In the above technical solution, the method further comprises: the concentrated water outlet pipe is communicated with the second treatment chamber close to the first electrode and the second treatment chamber close to the second electrode; and the fresh water outlet pipe is communicated with the first processing chamber close to the second electrode.
In this technical scheme, through setting up dense water exit tube and fresh water exit tube, can outwards discharge the dense water that preliminary purification and secondary purification produced, the fluid in the second treatment chamber promptly to realize the centralized processing of dense water, in addition, through setting up the fresh water exit tube, can outwards discharge the fresh water that produces after the secondary purification, the fluid in the first treatment chamber that is close to the second electrode promptly, so that user's citation or use.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic structural view of a water treatment apparatus according to still another embodiment of the present invention;
FIG. 2 shows a schematic structural view of a water treatment apparatus according to still another embodiment of the present invention;
fig. 3 is a schematic structural view showing an electric control part of a water treatment apparatus according to an embodiment of the present invention.
Wherein, the corresponding relation between the mark and the structure in the above figures is as follows:
10 membrane stack, 100 first treatment chamber, 200 second treatment chamber, 302 first electrode, 304 second electrode, 40 ion exchange membrane, 402 water inlet pipe, 404 first water inlet valve, 406 second water inlet valve, 412 third water inlet valve, 414 fourth water inlet valve, 422 auxiliary water inlet pipe, 424 concentrated water outlet pipe, 426 fresh water outlet pipe, 500 controller.
Detailed Description
So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Some embodiments according to the invention are described below with reference to fig. 1 to 3.
Example one
As shown in fig. 1, the flow direction of the fluid is as shown by the arrows in the figure, the water treatment apparatus according to one embodiment of the present invention comprises a treatment chamber group consisting of five ion exchange membranes 40, specifically, two groups of membrane stacks 10 consisting of five ion exchange membranes 40, the ionic properties of the five ion exchange membranes 40 from left to right are respectively anion-cation-anion, when the two sides of the treatment chamber are respectively anion-cation, it can be defined as a first treatment chamber 100, when the two sides of the treatment chamber are respectively cation-anion, it can be defined as a second treatment chamber 200, when the water is drained from the first treatment chamber 100 and the second treatment chamber 200 in the membrane stack 10 towards the left side through the water inlet pipe 402, the ion concentrations of the water in the two chambers can be continuously changed under the action of the ion exchange membranes 40, so that the ion concentration in the first treatment chamber 100 gradually decreases, the ion concentration in the second processing chamber 200 gradually increases, and of course, since the ion exchange membranes 40 on the left and right sides of each chamber have the same ionic properties as those of the two chambers on the left side in the membrane stack 10 on the right side, the first processing chamber 100 is a fresh water chamber, the second processing chamber 200 is a concentrated water chamber, and the fresh water chamber, the concentrated water chamber, the fresh water chamber, and the concentrated water chamber are arranged in this order from the left to the right.
The flow rate flowing into the two chambers on the left side through the water inlet pipeline 402 is controlled through the first water inlet valve 404 and the second water inlet valve 406 respectively, so that the water pressure in the water purification process is controlled conveniently, the problems of water leakage or desalination rate reduction and the like of a membrane stack in a waterway system caused by overlarge pressure are prevented, and the service life of the equipment is prolonged.
Further, after the raw water flowing in the water inlet pipe 402 is primarily purified by the two chambers on the left side, the fresh water generated after the primary purification flows into the membrane stack 10 on the right side through the auxiliary water inlet pipe 422 to be secondarily purified, and the concentrated water generated after the primary purification is directly discharged to the outside through the concentrated water outlet pipe 424.
For the second purification, further, the flow rate of the fresh water discharged from the first treatment chamber 100 on the left side into the two chambers on the right side can be controlled by the third water inlet valve 412 and the fourth water inlet valve 414 respectively, so that the third water inlet valve 412 can control the flow rate of the fresh water flowing into the first treatment chamber 100 close to the second electrode 304, that is, the flow rate of the fresh water flowing into the first treatment chamber 100 on the right side, and the fourth water inlet valve 414 can control the flow rate of the fresh water flowing into the second treatment chamber 200 close to the second electrode 304, that is, the flow rate of the fresh water flowing into the second treatment chamber 200 on the right side, to control the water pressure during the second purification, thereby preventing the problems of water leakage or desalination rate reduction of the membrane stack in the water path system caused by excessive pressure, and prolonging the service life of the device.
In addition, as shown in fig. 3, in order to facilitate the control of the water purification structure, a controller 500 is further provided, which is electrically connected to the first water inlet valve 404, the second water inlet valve 406, the third water inlet valve 412 and the fourth water inlet valve 414, so that the purification flow rate and the corresponding water pressure of the left first processing chamber 100 and the second processing chamber 200 can be adjusted by adjusting the opening degree of the first water inlet valve 404 and the second water inlet valve 406 according to the actual use requirement, and similarly, the purification flow rate and the corresponding water pressure of the right first processing chamber 100 and the right second processing chamber 200 can be adjusted by adjusting the opening degree of the third water inlet valve 412 and the fourth water inlet valve 414.
For the right membrane stack 10, the water in the first treatment chamber 100 is formed after two times of electrodialysis, and can be directly discharged through the fresh water outlet pipe 426, and the water in the second treatment chamber 200 needs to be discharged together with the second treatment chamber 200 in the left membrane stack 10 through the concentrated water outlet pipe 424.
Example two
In addition to embodiment 1, as shown in fig. 2, a first electrode 302 and a second electrode 304 are respectively disposed on two sides of the processing chamber group, wherein the first electrode 302 is an anode, and the second electrode 304 is a cathode.
The ionicity of the five ion exchange membranes 40 from the anode electrode to the cathode electrode is respectively negative-positive-negative.
EXAMPLE III
As shown in FIG. 2, a water treatment device according to one embodiment of the present invention includes two electrodes (i.e., a first electrode 302 and a second electrode 304), four flow control valves (i.e., a first water inlet valve 404, a second water inlet valve 406, a third water inlet valve 412, and a fourth water inlet valve 414). The present embodiment is applicable to a multi-stage electrodialysis membrane stack, the multi-stage electrodialysis membrane stack is divided into a front part and a rear part of inlet and outlet water paths, and the structure diagram is shown in fig. 2, where a first part of the water paths (i.e., the left membrane stack 10) includes a fresh water chamber 1 and a concentrated water chamber 1 (i.e., the left first treatment chamber 100 and the left second treatment chamber 200), and a second part of the water paths (i.e., the right membrane stack 10) includes a fresh water chamber 2 and a concentrated water chamber 2 (i.e., the right first treatment chamber 100 and the right second treatment chamber 200), where the fresh water chamber 1 represents a set of the first part of fresh water chambers, and can be combined into one water path, and similarly, for the fresh water chamber 2, the concentrated water chamber 1 and the concentrated water chamber 2 respectively represent a set of the first part of concentrated water chambers, a set of the second part of fresh water chambers, and a set of the second part of concentrated water chambers, and can be combined into one water path. The membrane stack water inflow is respectively controlled by flow valves 1, 2, 3 and 4 (namely a first water inlet valve 404, a second water inlet valve 406, a third water inlet valve 412 and a fourth water inlet valve 414), and the flow valves 1, 2, 3 and 4 are respectively connected with a fresh water chamber 1, a concentrated water chamber 1, a fresh water chamber 2 and a concentrated water chamber 2, so that the water inflow of each chamber can be respectively controlled. The water outlet of the fresh water chamber 1 is connected with the fresh water chamber 2 and the concentrated water chamber 2, and the concentrated water chamber 1 and the concentrated water chamber 2 are converged into the same concentrated water channel (namely concentrated water outlet pipe 424).
In the working process, the water flow direction is shown in fig. 2, raw water is divided into two parts which respectively flow into the fresh water chamber 1 and the concentrated water chamber 1, and the flow rates in the fresh water chamber 1 and the concentrated water chamber 1 are respectively controlled by the flow valve 1 and the flow valve 2. After the raw water is treated, the concentrated water in the concentrated water chamber 1 flows out from the concentrated water outlet, and the fresh water in the fresh water chamber 1 redistributes the flow through the flow valve 3 and the flow valve 4 and flows into the fresh water chamber 2 and the concentrated water chamber 2 through the auxiliary water inlet pipeline 422 for secondary purification treatment. After treatment, the fresh water in the fresh water chamber 2 flows out through the fresh water outlet (i.e., the fresh water outlet pipe 426), and the concentrated water in the concentrated water chamber 2 is collected to the concentrated water outlet (i.e., the concentrated water outlet pipe 424) to flow out. Wherein, the flow valves 1, 2, 3 and 4 can be adjusted according to the performance of the electrodialysis membrane stack and the water production requirement. The flow controlled by the flow valve 3 is the final fresh water yield.
In summary, according to the water treatment apparatus provided by the present invention, a plurality of sets of membrane stacks are connected in series to form a series-connected water channel, and the flow directions of the fluids in the two treatment chambers in each set of membrane stack are defined to be opposite, so that when water is purified, the fresh water after the first treatment can flow to the next membrane stack, on one hand, the desalination rate can be improved, on the other hand, the concentration difference between the two treatment chambers can be effectively reduced, thereby reducing the adverse effect of osmotic pressure on purification of the water channel system, and effectively improving the purification effect.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. A water treatment device, comprising:
the membrane stack comprises a plurality of groups of membrane stacks, each group of membrane stack comprises a first treatment chamber and a second treatment chamber which are adjacent, and the ion concentration of fluid in the first treatment chamber in each group of membrane stack is less than that of fluid in the second treatment chamber;
the electrode group comprises two electrodes with different polarities, the two electrodes are respectively arranged on two sides of the processing cavity group,
wherein the fluid flow in the first and second process chambers in each set of the stacks is in opposite directions, the first process chamber in the set of stacks adjacent one electrode being in communication with the first and second process chambers in the set of stacks adjacent the other electrode.
2. The water treatment device of claim 1, wherein the treatment chamber set includes a plurality of ion exchange membranes,
the ion exchange membranes form the first processing chamber and the second processing chamber which are arranged at intervals.
3. The water treatment apparatus according to claim 2, wherein the number of the ion exchange membranes is plural, and the ionic properties of any two adjacent ion exchange membranes are different.
4. The water treatment device of claim 2, wherein the number of the ion exchange membranes is five, four treatment chambers are formed among the five ion exchange membranes, two of the four treatment chambers which are spaced apart form the first treatment chamber, and the other two treatment chambers form the second treatment chamber.
5. The water treatment device of claim 4, wherein each ion exchange membrane is at least partially disposed in an electric field formed by an electrode set, the electrode set comprising a first electrode and a second electrode,
wherein the processing chamber near the first electrode is a first processing chamber, and the processing chamber near the second electrode is a second processing chamber.
6. The water treatment apparatus according to claim 5, further comprising:
and the water inlet pipeline is respectively communicated with the first treatment chamber and the second treatment chamber which are adjacent and arranged close to the first electrode.
7. The water treatment apparatus according to claim 6, further comprising:
the first water inlet valve is arranged on a part of the water inlet pipeline communicated with the first treatment chamber close to the first electrode and is used for controlling the flow of inlet water flowing into the first treatment chamber close to the first electrode;
and the second water inlet valve is arranged on a part of the water inlet pipeline communicated with the second treatment chamber close to the first electrode and is used for controlling the flow of inlet water flowing into the second treatment chamber close to the first electrode.
8. The water treatment apparatus according to claim 5, further comprising:
the first inverted pole water outlet pipe is communicated with a water outlet of the first processing chamber close to the second electrode;
a second inverted pole water outlet pipe communicated with the water outlet of the second processing chamber close to the second electrode,
and the ion concentrations of the fluids discharged from the first inverted pole water outlet pipe and the second inverted pole water outlet pipe are different.
9. The water treatment apparatus according to claim 7, further comprising:
one end of the auxiliary water inlet pipeline is communicated with the first treatment chamber close to the first electrode, and the other end of the auxiliary water inlet pipeline is respectively communicated with the first treatment chamber and the second treatment chamber close to the second electrode through a third water inlet valve and a fourth water inlet valve,
the third water inlet valve is used for controlling the inflow of water flowing into the first treatment chamber close to the second electrode, and the fourth water inlet valve is used for controlling the inflow of water flowing into the first treatment chamber close to the second electrode.
10. The water treatment apparatus according to claim 9, further comprising:
a controller electrically connected with the first water inlet valve, the second water inlet valve, the third water inlet valve and the fourth water inlet valve,
wherein the controller is capable of controlling the port openings of the first inlet valve, the second inlet valve, the third inlet valve and the fourth inlet valve.
11. The water treatment apparatus according to claim 9, further comprising:
the concentrated water outlet pipe is communicated with the second treatment chamber close to the first electrode and the second treatment chamber close to the second electrode;
and the fresh water outlet pipe is communicated with the first processing chamber close to the second electrode.
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