CN113929253A - Water purification structure and water purification unit - Google Patents
Water purification structure and water purification unit Download PDFInfo
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- CN113929253A CN113929253A CN202010605240.XA CN202010605240A CN113929253A CN 113929253 A CN113929253 A CN 113929253A CN 202010605240 A CN202010605240 A CN 202010605240A CN 113929253 A CN113929253 A CN 113929253A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/02—Treatment of water, waste water, or sewage by heating
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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
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/4618—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water
- C02F2001/46185—Devices therefor; Their operating or servicing for producing "ionised" acidic or basic water only anodic or acidic water, e.g. for oxidizing or sterilizing
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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Abstract
The invention provides a water purification structure and water purification equipment, wherein the water purification structure comprises: the membrane component structure is internally provided with a first treatment chamber and a second treatment chamber; the electrode cavity group comprises a first electrode cavity and a second electrode cavity which are arranged on two sides of the membrane component structure; an electrode waterway, comprising: the electrode water inlet pipe is respectively communicated with the water inlets of the first electrode cavity and the second electrode cavity; the electrode water outlet pipe is respectively communicated with the water outlets of the first electrode cavity and the second electrode cavity; and the membrane stack water path is independently arranged from the electrode water path and comprises a membrane stack water inlet pipe and a membrane stack water outlet pipe, wherein the membrane stack water inlet pipe is respectively communicated with the water inlets of the first treatment chamber and the second treatment chamber, and the membrane stack water outlet pipe is respectively communicated with the water outlets of the first treatment chamber and the second treatment chamber. According to the technical scheme of the invention, the water path flowing into the electrode is independently isolated from the water paths flowing into the first treatment chamber and the second treatment chamber, so that the possibility of influencing water quality due to precipitation or falling off of the electrode material after long-time use can be reduced.
Description
Technical Field
The invention relates to the field of water purification, in particular to a water purification structure and a water purification device.
Background
The domestic water purifier generally adopts active carbon or external filter to realize the 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, chooses the technique of electrodialysis for use to realize purifying usually, however the electrode can be because oxidation reduction makes the scale deposit rate increase of electrodialysis membrane stack when using, influences user's long-time use.
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 purifying structure.
Another object of the present invention is to provide a water purifying apparatus.
In order to achieve the above object, the technical solution of the present invention provides a water purification structure, including: a membrane module structure having at least one first process chamber and at least one second process chamber formed therein, adjacent first and second process chambers having different ionic concentrations of fluid therein; the electrode cavity group comprises a first electrode cavity and a second electrode cavity which are respectively arranged at two sides of the membrane component structure, and the first electrode cavity and the second electrode cavity are respectively internally provided with a first electrode and a second electrode with different polarities; an electrode waterway, comprising: the electrode water inlet pipe is respectively communicated with the water inlets of the first electrode cavity and the second electrode cavity; the electrode water outlet pipe is respectively communicated with the water outlets of the first electrode cavity and the second electrode cavity; the membrane stack water path comprises a membrane stack water inlet pipe and a membrane stack water outlet pipe, wherein the electrode water inlet pipe and the membrane stack water inlet pipe are independently arranged, the electrode water outlet pipe and the membrane stack water outlet pipe are independently arranged, the membrane stack water inlet pipe is respectively communicated with the water inlets of at least one first processing chamber and at least one second processing chamber, and the membrane stack water outlet pipe is respectively communicated with the water outlets of the at least one first processing chamber and the at least one second processing chamber.
According to the water purification structure provided by the technical scheme of the first aspect of the invention, the water purification structure comprises a membrane module structure, an electrode cavity group, an electrode water path and a membrane stack water path, specifically, a first treatment chamber and a second treatment chamber for containing water can be formed in the membrane module structure, the electrode cavity group comprises a first electrode cavity and a second electrode cavity which are respectively arranged at two sides of the membrane module structure, a first electrode and a second electrode are respectively arranged in the first electrode cavity and the second electrode cavity, because the first electrode and the second electrode have different polarities, an electric field for covering the membrane module structure can be formed when the water is electrified, and because the first treatment chamber and the second treatment chamber are formed in the membrane module structure, 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 the water is purified, namely, when the fluids respectively flow through the first treatment chamber and the second treatment chamber, negative and positive ions 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 particularly noted that the water purification structure further includes a membrane stack water path and an electrode water path which are independent from each other, specifically, the electrode water inlet pipe and the membrane stack water inlet pipe are independently arranged, the electrode water outlet pipe and the membrane stack water outlet pipe are independently arranged, and of course, the electrode water outlet pipe and the membrane stack water outlet pipe are independently arranged, so that fluid cannot flow in series between the electrode cavity and the treatment chamber, and can be discharged together when being discharged as wastewater outwards, the membrane stack water path is used for providing fluid which can realize ion movement under the action of an electric field for the first treatment chamber and the second treatment chamber, specifically, the membrane stack water path includes the membrane stack water inlet pipe and the membrane stack water outlet pipe, water can be supplied to the first treatment chamber and the second treatment chamber through the membrane stack water inlet pipe, the first treatment chamber and the second treatment chamber can make water flowing in through the membrane stack water inlet pipe perform ion movement under the action of the electric field, thereby making the ion concentrations in the first treatment chamber and the second treatment chamber change, and further discharging concentrated water and fresh water formed after the electrodialysis is carried out on the first treatment chamber and the second treatment chamber through a water outlet pipe of the membrane stack. In addition, through setting up independent electrode water route, the water route of inflow electrode is independently kept apart with the water route of flowing to first treatment chamber and second treatment chamber, reducible because electrode material uses can take place to appear or drop for a long time, and influence the possibility of quality of water, thereby can have more possibilities in electrode material's selection, improve the chooseing and use scope of electrode, be more convenient for to the nimble of different use scenes and user demand select, the life of whole structure has been prolonged greatly, water quality safety has also been guaranteed. Of course, due to the adoption of the independent electrode water path, when the electrode is damaged, the electrode can be directly taken out from the corresponding electrode cavity for replacement, and when the water quality in the electrode water path is reduced, the water in the electrode water path can be independently pumped out and the water with normal quality is re-injected, so that the normal operation of the electrode is ensured.
Furthermore, the first treatment chamber and the second treatment chamber can be used as main treatment modules of the 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 the above technical solution, the membrane module structure includes a plurality of ion exchange membranes, and a first treatment chamber and a second treatment chamber are formed between the plurality of ion exchange membranes and are arranged at an interval.
In the technical scheme, by limiting the membrane module structure to include 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, such as anions, or cations, can selectively permeate through the ion exchange membranes under the action of each ion exchange membrane, and under the action of the plurality of ion exchange membranes, electrodialysis purification of water flowing into the water purification structure and 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 processing chamber, such as the first processing chamber or the second processing chamber, under the action of the first electrode and the second electrode, and the separation and purification of the concentrated fresh water are realized.
In the above technical solution, each ion exchange membrane is at least partially disposed in an electric field formed between the first electrode and the second electrode.
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 above-mentioned technical scheme, first electrode is the positive pole, and the second electrode is the negative pole, and water purification structure still includes: and the water preparing tank is communicated with an electrode water outlet pipe communicated with the first electrode cavity.
In the technical scheme, the first electrode is an anode, the second electrode is a cathode, and the prepared water tank communicated with the electrode water outlet pipe corresponding to the anode electrode is arranged, so that acidic water generated after the anode electrode is reflected can be collected, and the subsequent use is facilitated, for example, dirt is cleaned by using the acidity of the water, and the like.
In the above technical solution, the method further comprises: the concentrated water outlet is communicated with one of the first treatment chamber and the second treatment chamber, which has higher ion concentration; and the fresh water outlet is communicated with the lower ion concentration one of the first processing chamber and the second processing chamber.
In the technical scheme, the concentrated water outlet and the fresh water outlet are arranged, the concentrated water and the fresh water formed by electroosmosis in the first treatment chamber and the second treatment chamber under the action of an electric field can be led out outwards respectively, the ion concentration in the first treatment chamber and the ion concentration in the second treatment chamber can be changed under the action of the electric field, the ion concentration in one of the first treatment chamber and the second treatment chamber can be increased, the ion concentration in the other treatment chamber can be decreased, the concentrated water is stored in the treatment chamber with higher ion concentration, the fresh water is stored in the treatment chamber with lower ion concentration, the concentrated water is discharged from the concentrated water outlet, and the fresh water is discharged from the fresh water outlet.
In the above technical solution, the method further comprises: and the four-way valve comprises a first valve port, a second valve port, a third valve port and a fourth valve port, wherein the first valve port is communicated with the membrane stack water outlet pipe of the first treatment chamber, the second valve port is communicated with the membrane stack water outlet pipe of the second treatment chamber, the third valve port is communicated with the concentrated water outlet, and the fourth valve port is communicated with the fresh water outlet, wherein the four-way valve can control the first valve port to be communicated with the third valve port or control the second valve port to be communicated with the third valve port.
In the technical scheme, the four-way valve includes four valve ports, specifically, the four valve ports are respectively a first valve port communicated with the membrane stack water outlet pipe of the first treatment chamber, a second valve port communicated with the membrane stack water outlet pipe of the second treatment chamber, a third valve port communicated with the concentrated water outlet, and a fourth valve port communicated with the fresh water outlet, specifically, the fourth valve port is selectively connected with the first valve port or the second valve port, so that the ion concentration of the fluid flowing out through the fourth valve port is low, that is, the fluid after purification is discharged from the fresh water outlet through the fourth valve port, and fresh water collection is realized.
In the above technical solution, the method further comprises: and the inlet of the water path switching device is respectively communicated with the electrode water outlet pipe and the membrane stack water outlet pipe, the water path switching device is provided with two outlets respectively communicated with the fresh water outlet and the concentrated water outlet, and the electrode water outlet pipe is communicated with the concentrated water outlet.
In the technical scheme, by arranging the waterway switching device, arranging the inlet communicated with the electrode water outlet pipe and the membrane stack water outlet pipe and arranging the outlet communicated with the fresh water outlet and the concentrated water outlet respectively, the fresh water and the concentrated water after primary purification can enter the waterway switching device, the waterway switching device is used for controlling the fresh water to flow to the fresh water outlet and the concentrated water to flow to the concentrated water outlet, and therefore fresh water collection and concentrated water discharge are achieved.
It should be noted that, since the overall system may have a condition of pole reversal during the operation process, so that the concentrations of the first treatment chamber and the second treatment chamber change, and the treatment chamber generating fresh water also changes accordingly, the treatment chamber with higher concentration in the treatment chamber can be communicated with the concentrated water outlet by arranging the concentrated water outlet on the waterway switching device, thereby realizing the discharge of concentrated water.
In the above technical solution, the method further comprises: the first flow valve is arranged on a membrane stack water inlet pipe communicated with the first treatment chamber so as to control the flow flowing into the first treatment chamber; the second flow valve is arranged on the membrane stack water inlet pipe communicated with the second processing chamber so as to control the flow flowing into the second processing chamber; the first proportional flow valve is arranged on the electrode water inlet pipe communicated with the first electrode cavity so as to control the flow flowing into the first electrode cavity; and the second proportional flow valve is arranged on the electrode water inlet pipe communicated with the second electrode cavity so as to control the flow flowing into the second electrode cavity.
In the technical scheme, the first flow valve and the second flow valve are respectively arranged on the membrane stack water inlet pipe communicated with the first treatment chamber and the membrane stack water inlet pipe communicated with the second treatment chamber, the inflow rate of water flowing into the membrane stack can be adjusted, specifically, the first inflow valve controls the inflow rate of water flowing into the first treatment chamber, and the second inflow valve controls the inflow rate of water flowing into the second treatment chamber, 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 the membrane stack in the waterway system caused by overlarge pressure are prevented, and the service life of the equipment is prolonged.
In addition, the first proportional flow valve on the electrode water inlet pipe communicated with the first electrode cavity and the second proportional flow valve of the electrode water inlet pipe communicated with the second electrode cavity are arranged, so that the flow of fluid flowing into the first electrode cavity and the second electrode cavity can be controlled, and the service life of the electrode cavity group is prolonged.
The technical scheme of the second aspect of the invention provides water purifying equipment, which comprises a water tank component, a water tank and a water tank, wherein the water tank component comprises a raw water tank and a waste water tank; in any one of the water purification structures in the technical scheme of the first aspect, the electrode water inlet pipe and the membrane stack water inlet pipe of the water purification structure are both communicated with the raw water tank, and in the first treatment chamber and the second treatment chamber of the water purification structure, the membrane stack water outlet pipe which is connected with the first treatment chamber and has higher ion concentration is communicated with the waste water tank; and the drinking water pipe is communicated with the membrane stack water outlet pipe connected with one of the first treatment chamber and the second treatment chamber with lower ion concentration.
According to the water purifying device provided by the technical scheme of the second aspect of the invention, the water purifying device comprises a water tank assembly, a water purifying structure and a drinking water pipe, wherein the water tank assembly comprises a raw water tank and a waste water tank, the raw water tank is used for providing working water of the membrane component structure and the electrode cavity group for the water purifying structure, after the working water is used by the electrode cavity group, water discharged by the electrode water outlet pipe is directly guided to the waste water tank, meanwhile, fluid in one of the first treatment chamber and the second treatment chamber with higher ion concentration is guided to the waste water tank to realize concentrated collection of concentrated water, and in addition, the drinking water pipe is communicated with the membrane stack water outlet pipe of the other one of the first treatment chamber and the second treatment chamber with lower ion concentration, so that fresh water can be led out to be used or drunk by users.
In the above technical solution, the method further comprises: one end of the main water inlet pipe is communicated with the raw water tank, and the other end of the main water inlet pipe is respectively communicated with the electrode water inlet pipe and the membrane stack water inlet pipe; the preposed filtering piece is arranged on the main water inlet pipe; the pump body is arranged on the main water inlet pipe.
In this technical scheme, through setting up main inlet tube, can fall into the stranded with the fluid of former water tank outflow, flow to electrode inlet tube and membrane heap inlet tube respectively, in addition, through set up the leading filter piece and the pump body on main inlet tube, can be under the effect of leading filter piece, carry out prefilter to the fluid that flows into electrode inlet tube and membrane heap inlet tube, influence to the equipment production of the granule that reduces inside retention, and under the effect of the pump body, can provide the power that the fluid flows in main inlet tube, provide water pressure promptly, realize the normal flow of fluid in the water route.
In the above technical solution, the method includes: the post-filter is arranged on the drinking water pipe, and in the first treatment chamber and the second treatment chamber, the fluid flowing out of the membrane stack water outlet pipe connected with the membrane stack with lower ion concentration flows out through the post-filter.
In the technical scheme, the post-filter is arranged on the drinking water pipe, so that the secondary filtration can be performed on the lower ion concentration one of the first treatment chamber and the second treatment chamber before the lower ion concentration one is led out, and the quality of the fluid is further improved.
It will be appreciated, among other things, that the ion concentration of the fluid flowing through the post-filter is relatively low.
In the above technical solution, the method further comprises: and the heating device is arranged on the drinking water pipe so as to adjust the temperature of the fluid flowing out of the membrane stack water outlet pipe which is connected with the first treatment chamber and the second treatment chamber and has lower ion concentration.
In the technical scheme, the water drinking pipe is provided with the heating device, so that the temperature of the fluid in one of the first treatment chamber and the second treatment chamber with lower ion concentration can be adjusted, and different temperature requirements of a user on drinking water or using water are facilitated.
It will be appreciated, among other things, that the ion concentration of the fluid flowing through the post-filter is relatively low.
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 purification structure according to an embodiment of the present invention;
fig. 2 shows a schematic structural view of a water purification structure according to yet another embodiment of the present invention;
fig. 3 shows a schematic structural view of a water purification structure according to yet another embodiment of the present invention;
fig. 4 shows a schematic structural view of a water purification structure according to yet another embodiment of the present invention;
fig. 5 illustrates a schematic configuration of a water purifying 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 module structure, 100 first treatment chamber, 200 second treatment chamber, 30 electrode cavity group, 302 first electrode cavity, 3022 first electrode, 304 second electrode cavity, 3042 second electrode, 40 electrode waterway, 402 electrode inlet pipe, 404 electrode outlet pipe, 41 membrane stack waterway, 406 membrane stack inlet pipe, 408 membrane stack outlet pipe, 50 ion exchange membrane, 52 backup water tank, 602 concentrated water outlet, 604 fresh water outlet, 70 four-way valve, a first valve port, b second valve port, c third valve port, d fourth valve port, 72 waterway switching device, 802 first flow valve, 804 second flow valve, 806 first proportional flow valve, 808 second proportional flow valve, 902 raw water tank, 904 waste water tank, 906 pipe, 908 main water inlet pipe, 910 pre-filter, 912, 914 post-filter, 916 heating device.
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 5.
Example one
As shown in fig. 1, a water purification structure according to an embodiment of the present invention includes a membrane module structure 10 forming an electrodialysis membrane stack, and an electrode chamber group 30, where the membrane module structure 10 includes a plurality of ion exchange membranes 50, and a first treatment chamber 100 and a second treatment chamber 200 formed by the plurality of ion exchange membranes 50, the electrode chamber group 30 includes a first electrode chamber 302 and a second electrode chamber 304 respectively disposed at two sides of the membrane module structure 10, a first electrode 3022 and a second electrode 3042 are respectively disposed in the first electrode chamber 302 and the second electrode chamber 304, an electric field may be formed between the first electrode 3022 and the second electrode 3042, and at least a portion of each ion exchange membrane 50 is disposed in the formed electric field to facilitate the electrodialysis. It is understood that in the process of applying the electric field to the first treatment chamber 100 and the second treatment chamber 200 for performing the electrodialysis, the electrode cavity group 30 and the membrane module structure 10 are usually added with water at the same time to use water as a conductor to realize the flow of ions between the first treatment chamber 100 and the second treatment chamber 200, but in the above manner, the electrodes may fall off or separate out materials under long-term use to pollute water, and the electrodes electrolyze water to act on the ion exchange membrane 50 to accelerate scaling, so that the electrode water path 40 is provided separately from the membrane water path 41, further, the membrane water path 41 includes a membrane inlet pipe 406 and a membrane outlet pipe 408, the membrane inlet pipe 406 is used to connect with the water inlets of the first treatment chamber 100 and the second treatment chamber 200, and the membrane outlet is connected with the water outlets of the first treatment chamber 100 and the second treatment chamber 200, the electrode water circuit 40 comprises an electrode water inlet pipe 402 and an electrode water outlet pipe 404, the electrode water outlet pipe 404 is connected with the water inlets of the first electrode cavity 302 and the second electrode cavity 304, and the electrode water outlet pipe 404 is connected with the water outlets of the first electrode cavity 302 and the second electrode cavity 304.
The first electrode 3022 is disposed in the first electrode cavity 302, the second electrode 3042 is disposed in the second electrode cavity 304, and when the water purification structure is operated by using an electrodialysis technique, the first electrode 3022 and the second electrode 3042 have fixed polarities.
As shown in fig. 4, in a specific embodiment, the first electrode 3022 is an anode, the second electrode 3042 is a cathode, and on this basis, the water preparing tank 52 may be additionally disposed, and the water preparing tank 52 is communicated with the electrode outlet pipe 404 of the first electrode cavity 302, so that the first electrode 3022 generates hydrogen ions when electrolyzing water, so that the water near the first electrode 3022 is acidic, and then the acidic water is introduced into the water preparing tank 52, so as to facilitate the subsequent descaling operation of the membrane stack, i.e. the first treatment chamber 100 and the second treatment chamber 200, and also collect water used as domestic washing impurities, such as washing dishes or washing dishes.
In another specific embodiment, the first electrode 3022 is a cathode and the second electrode 3042 is an anode, and on this basis, the water preparing tank 52 may be additionally disposed, and the water preparing tank 52 is communicated with the electrode outlet pipe 404 of the second electrode cavity 304, so that the second electrode 3042 generates hydrogen ions when electrolyzing water, so that the water near the second electrode 3042 is acidic, and the acidic water is introduced into the water preparing tank 52, so as to facilitate the subsequent descaling operation of the membrane stack, i.e. the first treatment chamber 100 and the second treatment chamber 200, and also to collect water used as domestic washing impurities, such as washing vegetables or dishes.
The two adjacent ion exchange membranes 50 have different ionic properties, that is, the ion exchange membranes 50 are divided into a cation exchange membrane 50 and an anion exchange membrane 50 according to the difference in permeability of ions, and the cation exchange membrane 50 and the anion exchange membrane 50 are usually disposed at an interval to satisfy the principle of electrodialysis.
The number of the first processing chamber 100 and the second processing chamber 200 may be one or more, and may be designed according to the demand of the actual purge flow.
Example two
As shown in fig. 1 and fig. 2, on the basis of the first embodiment, a four-way valve 70 is disposed at the rear ends of the electrode water outlet pipe 404 and the membrane stack water outlet pipe 408, and four valve ports of the four-way valve 70 are respectively a first valve port a communicated with the membrane stack water outlet pipe 408 of the first treatment chamber 100, a second valve port b communicated with the membrane stack water outlet pipe 408 of the second treatment chamber 200, a third valve port c communicated with the concentrated water outlet 602, and a fourth valve port d communicated with the fresh water outlet 604.
The fourth valve port d can be selectively connected to the first valve port a or the second valve port b, so that the ion concentration of the fluid flowing out through the fourth valve port d is low, that is, the fluid after being purified is discharged from the fresh water outlet 604 through the fourth valve port d, so as to realize fresh water collection.
In one embodiment, the ion concentration of the first processing chamber 100 is gradually decreased in the electric field, and the first valve port a is connected to the fourth valve port d, so that the fresh water in the first processing chamber 100 is discharged through the fourth valve port d.
In another embodiment, the ion concentration of the second processing chamber 200 is gradually decreased in the electric field, and the second valve port b is connected to the fourth valve port d, so that the fresh water in the second processing chamber 200 is discharged through the fourth valve port d.
EXAMPLE III
As shown in fig. 3, on the basis of the first embodiment, the water path switching device 72 is disposed at the rear end of the electrode water outlet pipe 404 and the membrane stack water outlet pipe 408, and an inlet communicated with the electrode water outlet pipe 404 and the membrane stack water outlet pipe 408 is disposed, and an outlet respectively communicated with the fresh water outlet 604 and the concentrated water outlet 602 is also disposed, so that both the primarily purified fresh water and the primarily purified concentrated water can enter the water path switching device 72, and the fresh water flow is controlled to the fresh water outlet 604 through the water path switching device 72, and the concentrated water flow is controlled to the concentrated water outlet 602, thereby realizing fresh water collection and concentrated water discharge.
It should be noted that, since the concentration of the first treatment chamber 100 and the concentration of the second treatment chamber 200 may change during the operation of the whole system, the treatment chamber that generates fresh water may also change accordingly, and the water path switching device 72 is provided with the concentrated water outlet 602, so that the treatment chamber with higher concentration in the treatment chamber can be communicated with the concentrated water outlet 602, thereby discharging concentrated water.
In one embodiment, the ion concentration in the first processing chamber 100 is gradually decreased in the electric field, and the fresh water in the first processing chamber 100 can be discharged through the fresh water outlet 604.
In another embodiment, the ion concentration in the second processing chamber 200 is gradually decreased in the electric field, and the fresh water in the second processing chamber 200 can be discharged through the fresh water outlet 604.
Example four
The water purification structure according to an embodiment of the present invention includes a membrane module structure 10 forming an electrodialysis membrane stack, and an electrode chamber group 30, wherein the membrane module structure 10 includes a plurality of ion exchange membranes 50, and a first treatment chamber 100 and a second treatment chamber 200 formed by the plurality of ion exchange membranes 50, the electrode chamber group 30 includes a first electrode chamber 302 and a second electrode chamber 304 respectively disposed at two sides of the membrane module structure 10, a first electrode 3022 and a second electrode 3042 are respectively disposed in the first electrode chamber 302 and the second electrode chamber 304, an electric field can be formed between the first electrode 3022 and the second electrode 3042, and at least a portion of each ion exchange membrane 50 is disposed in the electric field formed as described above to facilitate the performance of electrodialysis.
In order to facilitate the water pressure control of the membrane module structure 10 and the electrode chamber group 30, a first flow valve 802 and a second flow valve 804 are respectively disposed on the membrane stack water inlet pipe 406 communicated with the first treatment chamber 100 and the membrane stack water inlet pipe 406 communicated with the second treatment chamber 200, so as to adjust the water inlet flow rate flowing into the membrane stack, specifically, the first water inlet valve controls the water inlet flow rate flowing into the first treatment chamber 100, and the second water inlet valve controls the water inlet flow rate flowing into the second treatment chamber 200, so as to control the water pressure in the water purification process. Meanwhile, the first proportional flow valve 806 of the electrode inlet pipe 402 communicated with the first electrode cavity 302 and the second proportional flow valve 808 of the electrode inlet pipe 402 communicated with the second electrode cavity 304 are arranged, so that the flow of the fluid flowing into the first electrode cavity 302 and the second electrode cavity 304 can be controlled, and the service life of the electrode cavity group 30 can be prolonged.
EXAMPLE five
As shown in fig. 5, the water purifying apparatus according to an embodiment of the present invention includes a raw water tank 902 and a waste water tank 904, wherein the raw water tank 902 is connected to the electrode water inlet pipe 402 and the membrane water inlet pipe 406 of the water purifying structure through a main water inlet pipe 908, and a pre-filter 910 and a pump body 912 are further provided on the main water inlet pipe 908, and water in the raw water tank 902 can be pumped out by the pump body 912 and flows to the electrode water inlet pipe 402 and the membrane water inlet pipe 406 through the pre-filter 910.
At the rear end of the water purification structure, a drinking water pipe 906 connected to the membrane stack water outlet pipe 408 connected to one of the first and second treatment chambers 100 and 200 having a lower ion concentration may be provided, and a post-filter 914 and a heating device 916 may be provided on the drinking water pipe 906 to heat and filter the discharged fresh water.
EXAMPLE six
As shown in fig. 5, the present invention provides a specific water purification apparatus, which divides the water path entering the electric purification membrane stack (i.e. the membrane module structure 10 and the electrode chamber group 30) into 4 paths, and 2 paths are independent electrode water inlets (i.e. the electrode water path 40) and directly discharge the electrode water paths into a waste water tank 904; the 2 paths are membrane stack pure water and wastewater inlet water (namely a membrane stack water path 41), and the pure water is finally discharged and drunk through a post-filter element (namely a post-filter 914) and a instant heating module (namely a heating device 916); the wastewater drains directly into the wastewater tank 904.
The main working principle of this embodiment is: a self-priming pump (namely a pump body 912) sucks water from a raw water tank 902, the water enters a front filter element (namely a front filter element 910), the water enters a membrane stack after being divided into 4 paths, and 2 paths of water enter electrode chambers on two sides of the membrane stack through flow proportioners (namely a first proportional flow valve 806 and a second proportional flow valve 808) respectively and then are directly discharged to a waste water tank 904; the 2 paths of water entering the membrane stack respectively pass through a flow regulating valve (namely a first flow valve 802 and a second flow valve 804) to form a path of high-flow pure water and a path of low-flow waste water to enter the membrane stack, and the formed pure water and waste water pass through a four-way reversing valve (namely a four-way valve 70) through an electric purification process, so that the pure water always flows through a pure water waterway to enter a post-filter element (namely a post-filter 914) during forward operation and reverse operation and is discharged by an instant heating module (namely a heating device 916) for drinking; the waste water is discharged from the waste water pipeline all the time, and the whole electric purification process is completed.
The change of the desalination rate effect of the electric purification membrane stack is realized by adjusting the voltage, and the adjustable treatment of different TDS (Total dissolved solids) and temperatures is realized by matching with the instant heating module.
In summary, according to the water purification structure and the water purification apparatus provided by the present invention, the water path flowing into the electrode is independently isolated from the water paths flowing into the first treatment chamber and the second treatment chamber, so that the possibility of water quality influence caused by precipitation or falling off of the electrode material after long-term use can be reduced.
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 (13)
1. A water purification structure, comprising:
a membrane module structure having at least one first process chamber and at least one second process chamber formed therein, adjacent first and second process chambers having different ion concentrations of fluid therein;
the electrode cavity group comprises a first electrode cavity and a second electrode cavity which are respectively arranged at two sides of the membrane component structure, and the first electrode cavity and the second electrode cavity are respectively provided with a first electrode and a second electrode with different polarities;
an electrode waterway, comprising: the electrode water inlet pipe is respectively communicated with the water inlets of the first electrode cavity and the second electrode cavity; the electrode water outlet pipe is respectively communicated with the water outlets of the first electrode cavity and the second electrode cavity;
the membrane stack water route, including membrane stack inlet tube and membrane stack outlet pipe, the electrode inlet tube with the membrane stack inlet tube sets up independently, the electrode outlet pipe with the membrane stack outlet pipe sets up independently, the membrane stack inlet tube respectively with at least one the water inlet of first process chamber and at least one second process chamber is linked together, the membrane stack outlet pipe respectively with at least one the delivery port of first process chamber and at least one second process chamber is linked together.
2. The water purification structure of claim 1, wherein the membrane module structure comprises a plurality of ion exchange membranes, each of which has a fluid on both sides containing ions having different ionic properties,
wherein the first processing chamber and the second processing chamber are arranged at intervals among the ion exchange membranes.
3. The water purification structure of 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 purification structure of claim 2, wherein at least a portion of each ion exchange membrane is disposed in an electric field formed between the first electrode and the second electrode.
5. The water purification structure of claim 1, wherein the first electrode is an anode and the second electrode is a cathode, the water purification structure further comprising:
and the water preparation tank is communicated with an electrode water outlet pipe communicated with the first electrode cavity.
6. The water purification structure of claim 1, further comprising:
a concentrated water outlet in communication with the higher ion concentration of one of the first and second treatment chambers;
a fresh water outlet in communication with the lower ion concentration one of the first and second processing chambers.
7. The water purification structure of claim 6, further comprising:
a four-way valve, which comprises a first valve port, a second valve port, a third valve port and a fourth valve port, wherein the first valve port is communicated with the membrane stack water outlet pipe of the first treatment chamber, the second valve port is communicated with the membrane stack water outlet pipe of the second treatment chamber, the third valve port is communicated with the concentrated water outlet, and the fourth valve port is communicated with the fresh water outlet,
the four-way valve can control the first valve port to be communicated with the third valve port or control the second valve port to be communicated with the third valve port.
8. The water purification structure of claim 6, further comprising:
the inlet of the water path switching device is respectively communicated with the electrode water outlet pipe and the membrane stack water outlet pipe, the water path switching device is provided with two outlets respectively communicated with the fresh water outlet and the concentrated water outlet,
wherein, the electrode water outlet pipe is communicated with the concentrated water outlet.
9. The water purification structure of any one of claims 1 to 8, further comprising:
the first flow valve is arranged on a membrane stack water inlet pipe communicated with the first treatment chamber so as to control the flow rate flowing into the first treatment chamber;
the second flow valve is arranged on a membrane stack water inlet pipe communicated with the second processing chamber so as to control the flow rate flowing into the second processing chamber;
the first proportional flow valve is arranged on an electrode water inlet pipe communicated with the first electrode cavity so as to control the flow flowing into the first electrode cavity;
and the second proportional flow valve is arranged on the electrode water inlet pipe communicated with the second electrode cavity so as to control the flow flowing into the second electrode cavity.
10. A water purification apparatus, comprising:
the water tank assembly comprises a raw water tank and a waste water tank;
the water purification structure of any one of claims 1 to 9, wherein the electrode water inlet pipe and the membrane stack water inlet pipe of the water purification structure are both communicated with the raw water tank, and one connected membrane stack water outlet pipe of the first treatment chamber and the second treatment chamber of the water purification structure, which has a higher ion concentration, is communicated with the waste water tank;
and the drinking water pipe is communicated with the membrane stack water outlet pipe connected with one of the first treatment chamber and the second treatment chamber with lower ion concentration.
11. The water purification apparatus of claim 10, further comprising:
one end of the main water inlet pipe is communicated with the raw water tank, and the other end of the main water inlet pipe is respectively communicated with the electrode water inlet pipe and the membrane stack water inlet pipe;
the preposed filter piece is arranged on the main water inlet pipe;
the pump body is arranged on the main water inlet pipe.
12. The water purification apparatus of claim 10, comprising:
and the post-filter is arranged on the drinking water pipe, and in the first treatment chamber and the second treatment chamber, the fluid flowing out of the membrane stack water outlet pipe connected with the membrane stack with lower ion concentration flows out through the post-filter.
13. The water purification apparatus of any one of claims 10 to 12, further comprising:
and the heating device is arranged on the drinking water pipe so as to adjust the temperature of the fluid flowing out of the membrane stack water outlet pipe which is connected with the first treatment chamber and the second treatment chamber and has lower ion concentration.
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| CN202010605240.XA CN113929253A (en) | 2020-06-29 | 2020-06-29 | Water purification structure and water purification unit |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129554A (en) * | 1999-11-02 | 2001-05-15 | Japan Organo Co Ltd | Method and apparatus for making deionized water |
| CN1628897A (en) * | 2003-12-19 | 2005-06-22 | 财团法人工业技术研究院 | Electric dialysis device and method capable of saving acid consumption |
| CN111115772A (en) * | 2020-02-27 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Waterway system and water purifying equipment |
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2020
- 2020-06-29 CN CN202010605240.XA patent/CN113929253A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001129554A (en) * | 1999-11-02 | 2001-05-15 | Japan Organo Co Ltd | Method and apparatus for making deionized water |
| CN1628897A (en) * | 2003-12-19 | 2005-06-22 | 财团法人工业技术研究院 | Electric dialysis device and method capable of saving acid consumption |
| CN111115772A (en) * | 2020-02-27 | 2020-05-08 | 佛山市顺德区美的饮水机制造有限公司 | Waterway system and water purifying equipment |
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