CN111115772A

CN111115772A - Waterway system and water purifying equipment

Info

Publication number: CN111115772A
Application number: CN202010125595.9A
Authority: CN
Inventors: 刘梦薇; 孙天厚; 张艳鹤; 曲绍鹤
Original assignee: Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Current assignee: Foshan Shunde Midea Water Dispenser Manufacturing Co Ltd
Priority date: 2020-02-27
Filing date: 2020-02-27
Publication date: 2020-05-08

Abstract

The invention provides a waterway system and water purifying equipment, wherein the waterway system comprises: a water inlet pipeline and a water outlet pipeline; the two ends of the first treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, the two ends of the second treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, ions of fluid in the first treatment chamber and ions of fluid in the second treatment chamber can mutually permeate to change the ion concentration of the fluid in the first treatment chamber and the ion concentration of the fluid in the second treatment chamber, and the flow direction of the fluid in the first treatment chamber is opposite to that of the fluid in the second treatment chamber. Through the technical scheme of the invention, the concentrations of the same ends of the first treatment chamber and the second treatment chamber are approximately the same, the concentration difference between the two treatment chambers is effectively reduced, the adverse effect of osmotic pressure on purification of a waterway system is further reduced, and the purification effect can be effectively improved.

Description

Waterway system and water purifying equipment

Technical Field

The invention relates to the field of water purification, in particular to a waterway system and water purification equipment.

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, the user often has to additionally spend owing to need change the consumptive material, influence the use of product, among the prior art, some water purification unit adopt the electrodialysis technique to realize purifying, nevertheless because in the course of the work, the water pressure in the pipeline can keep higher state, greatly reduce the desalination rate of electrodialysis, and then make the quality of the water of output still be not suitable for the user to 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 waterway system.

Another object of the present invention is to provide a water purifying apparatus.

In order to achieve the above object, a first aspect of the present invention provides a waterway system, including: the water inlet pipeline is provided with a first valve component which can control the water inlet flow proportion of the first treatment chamber and the second treatment chamber; the two ends of the first treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, the two ends of the second treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, ions of fluid in the first treatment chamber and ions of fluid in the second treatment chamber can mutually permeate to change the ion concentration of the fluid in the first treatment chamber and the ion concentration of the fluid in the second treatment chamber, and the flow direction of the fluid in the first treatment chamber is opposite to that of the fluid in the second treatment chamber.

According to the technical scheme of the first aspect of the invention, the waterway system comprises a water inlet pipeline, a water outlet pipeline, a second processing chamber, a first processing chamber and a first valve assembly. Wherein, the two ends of the first processing chamber and the second processing chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, so as to respectively convey water to be purified to the first processing chamber and the second processing chamber through the water inlet pipeline, and after the water is processed by the first processing chamber and the second processing chamber, the water is discharged through the water outlet pipeline, thereby obtaining purified water with salt and impurities removed, furthermore, the first valve component is arranged on the water inlet pipeline, so as to respectively control the flow rate of the water flowing into the first processing chamber and the second processing chamber through the first valve component, thereby respectively conveying different amounts of the water to be purified to the first processing chamber and the second processing chamber through the water inlet pipeline, the two processing chambers can be used for receiving different amounts of water or water with different impurity concentrations, so as to obtain a specific fresh water recovery ratio, particularly, the water outlet pipeline can discharge the water of the processing chambers out of the water path system, and a part of the water of the processing chambers is discarded, another part of the water of the treatment chamber can be used by the user. It is particularly emphasized that by restricting the fluid flow direction in the first process chamber to be opposite to the fluid flow direction in the second process chamber, for example, the process chambers may collectively comprise a first end and a second end, the fluid flow in the first process chamber being from the first end to the second end, the fluid flow in the second process chamber being from the second end to the first end, on the basis that the ion concentration in the first processing chamber and the second processing chamber can be changed by making the ions of the fluid between the first processing chamber and the second processing chamber mutually permeable, so that the concentrations of the first ends of the first processing chamber and the second processing chamber can be kept approximately the same, and the concentrations of the second ends of the first processing chamber and the second processing chamber can be kept approximately the same, the concentration difference between the two processing chambers can be effectively reduced, and then reduce the harmful effects that osmotic pressure purified waterway system, can effectively improve purifying effect.

Specifically, the water channel system can be used for water purification treatment, the first treatment chamber and the second treatment chamber can be used as electrodialysis devices, water input into the water channel system can be treated into two kinds of water with different impurity concentrations and can be discharged respectively, water with high impurity concentration is treated as sewage, and water with low impurity concentration is used as recyclable water. On the one hand, the first valve assembly is controlled to control water pressure entering different treatment chambers in the water purification process, so that 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, the service life of the equipment is prolonged, and on the other hand, water flow can be distributed according to a certain proportion by controlling the opening and closing of the first valve assembly, so that the accuracy of water control is improved. Furthermore, the water distributed according to a certain proportion can flow into the first treatment chamber and the second treatment chamber respectively, and then the water is discharged through the water outlet pipeline, so that the water purification operation is realized.

Furthermore, the first treatment chamber and the second treatment chamber are used as main treatment modules of the reverse-electrode electrodialysis membrane stack, ions of fluid in the first treatment chamber and the second 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 scheme, the water inlet pipeline specifically includes: the device comprises a first main water inlet pipe and a second main water inlet pipe, wherein the first main water inlet pipe is communicated with a first treatment chamber, and the second main water inlet pipe is communicated with a second treatment chamber; the first valve component specifically includes: the first flow valve is arranged on the first main water inlet pipe; and the second flow valve is arranged on the second main water inlet pipe.

In the technical scheme, the water inlet pipeline comprises a first main water inlet pipe and a second main water inlet pipe, and the first main water inlet pipe is communicated with the first treatment chamber. I.e. when water flows into the first treatment chamber through the first main inlet pipe, it is discharged from the outlet pipe. Likewise, a second main inlet conduit communicates with the second treatment chamber. That is, the water flowing into the second treatment chamber from the second main water inlet pipe can be discharged through the water outlet pipeline chamber, so that the flow direction of the water is effectively controlled, the water is respectively supplied to the first treatment chamber and the second treatment chamber through the first water inlet pipe and the second water inlet pipe, the water flow of the first water inlet pipe and the water flow of the second water inlet pipe are respectively controlled through the first valve assembly, unequal amounts of water are supplied to the first treatment chamber and the second treatment chamber, and the first treatment chamber and the second treatment chamber obtain a specific fresh water recovery ratio after water purification operation, so that the water purification effect is improved.

In addition, the first valve component includes: the first flow valve and the second flow valve are arranged on the first main water inlet pipe. When water flows into the first water inlet pipe, the first flow valve effectively controls the water quantity entering the first water inlet pipe, namely, the water quantity discharged through the treatment chamber is effectively controlled, and the accuracy of water purification operation is improved. Similarly, a second flow valve is arranged on the second main water inlet pipe, so that the water quantity entering the second treatment chamber can be controlled, and the accuracy of the water outlet quantity is improved.

In the above technical scheme, the outlet pipe way includes: one end of the first water outlet pipe is communicated with the first treatment chamber; and one end of the second water outlet pipe is communicated with the second treatment chamber.

In the technical scheme, the water outlet pipelines, namely the first water outlet pipe and the second water outlet pipe, are arranged in the waterway system to accurately discharge water from the two water outlet pipes, so that the accuracy of controlling the discharge of the water is improved.

Wherein, one end of the first water outlet pipe is communicated with the first treatment chamber to discharge water from the first treatment chamber, and one end of the second water outlet pipe is communicated with the second treatment chamber to accurately discharge water from the second treatment chamber.

In the above technical solution, the water outlet pipeline further includes: one end of the first water outlet branch pipe is communicated with the first water outlet pipe; one end of the second water outlet branch pipe is communicated with the first water outlet pipe; one end of the third water outlet branch pipe is communicated with the second water outlet pipe; and one end of the fourth water outlet branch pipe is communicated with the second water outlet pipe, the other end of the first water outlet branch pipe and the other end of the third water outlet branch pipe are respectively communicated with a fresh water outlet, and the other end of the second water outlet branch pipe and the other end of the fourth water outlet branch pipe are respectively communicated with a concentrated water outlet.

In the technical scheme, the water outlet pipeline comprises a first water outlet branch pipe, a second water outlet branch pipe, a third water outlet branch pipe and a fourth water outlet branch pipe, and the connection relation between the four water outlet branch pipes and the first water outlet pipe, the connection relation between the four water outlet branch pipes and the connection. Specifically, the first treatment chamber is communicated with the fresh water outlet sequentially through the first water outlet pipe, the first water outlet branch pipe and the fresh water outlet, the first treatment chamber is communicated with the concentrated water outlet sequentially through the first water outlet pipe, the second water outlet branch pipe and the fresh water outlet sequentially, the second treatment chamber is communicated with the fresh water outlet sequentially through the second water outlet pipe, the fourth water outlet branch pipe and the fresh water outlet, and the flow direction of water is controlled.

In the above technical solution, the method further comprises: the second valve subassembly is located on going out the water piping, and the second valve subassembly includes: the first switch valve is arranged on the first water outlet branch pipe; the second switch valve is arranged on the second water outlet branch pipe, and the third switch valve is arranged on the third water outlet branch pipe; and the fourth switch valve is arranged on the fourth water outlet branch pipe, one of the first switch valve and the second switch valve is opened, the other one of the first switch valve and the second switch valve is closed, one of the third switch valve and the fourth switch valve is opened, and the other one of the third switch valve and the fourth switch valve is closed.

In the technical scheme, a second valve assembly is arranged on the water outlet pipeline, the on-off of four water outlet branch pipes can be controlled, specifically, a first switch valve is arranged on a first water outlet branch pipe, a second switch valve is arranged on a second water outlet branch pipe, fluid in the first treatment chamber can accurately flow out from a concentrated water outlet or a fresh water outlet according to the current ion concentration of the fluid per se by limiting the opening of one of the first switch valve and the second switch valve and the closing of the other one of the first switch valve and the second switch valve, similarly, a third switch valve is arranged on a third water outlet branch pipe, a fourth switch valve is arranged on a fourth water outlet branch pipe, and the fluid in the second treatment chamber can accurately flow out from the concentrated water outlet or the fresh water outlet according to the current ion concentration of the fluid per se by limiting the opening of one of the third switch valve and the closing of the other one of the third switch valve and the fourth switch valve.

In the above technical solution, the method further comprises: and the microcontroller is electrically connected with the first switch valve, the second switch valve, the third switch valve and the fourth switch valve and can control the opening and closing of the first switch valve, the second switch valve, the third switch valve and the fourth switch valve, wherein the microcontroller is electrically connected with the first flow valve and the second flow valve so as to control the inflow proportion of the first treatment chamber and the second treatment chamber through the opening degree of the first flow valve and the opening degree of the second flow valve.

In the technical scheme, a microcontroller is arranged in a water path system and is electrically connected with a first switch valve, a second switch valve, a third switch valve and a fourth switch valve, and the microcontroller can effectively control the opening and closing of the first switch valve, the second switch valve, the third switch valve and the fourth switch valve, so that the switching of water outlet branches between a first treatment chamber and a second treatment chamber and a concentrated water outlet and a fresh water outlet is realized, namely, water can be discharged from the first treatment chamber to the outside through a first water outlet branch pipe, and water can be discharged from the second treatment chamber to the outside through a third water outlet branch pipe; or the water is discharged from the first treatment chamber to the outside through the second water outlet branch pipe, and the water is discharged from the second treatment chamber to the outside through the fourth water outlet branch pipe, so that the normal use requirement of a user is met. Further, the microcontroller controls the opening and closing of the four switch valves, namely, controls the water purification operation on the water, so that the water is discharged from the two treatment chambers respectively with a certain water amount, and the reliability of the water purification operation is improved.

Furthermore, the microcontroller is electrically connected with the first flow valve and the second flow valve, and then the opening degree of the first flow valve and the second flow valve is controlled to further control the flow of the first main water inlet pipe and the second main water inlet pipe, so that the quantity of water to be purified, which is respectively conveyed to the first treatment chamber and the second treatment chamber by the first main water inlet pipe and the second main water inlet pipe, is in a set proportion, a specific fresh water recovery ratio is obtained, a proper water pressure is kept, the desalination rate is improved, and the water purification effect is improved.

In the above technical solution, the method further comprises: two valve ports of the first three-way valve are respectively communicated with the first water outlet branch and the second water outlet branch, and the other valve port of the first three-way valve is communicated with the first water outlet pipe; and two valve ports of the second three-way valve are respectively communicated with the third water outlet branch and the fourth water outlet branch, and the other valve port of the first three-way valve is communicated with the second water outlet pipe.

In the technical scheme, two valve ports of a first three-way valve are respectively communicated with a first water outlet branch and a second water outlet branch, the other valve port of the first three-way valve is communicated with a first water outlet pipe, and a water outlet channel which flows out from a first treatment chamber is controlled by controlling the orientation of a valve of the first three-way valve; when the second water outlet branch is communicated with the first treatment chamber and the first water outlet branch is disconnected from the first treatment chamber by the first three-way valve, the purified concentrated water is discharged to a concentrated water outlet from the first treatment chamber through the first water outlet pipe and the second water outlet branch; similarly, two valve ports of a second three-way valve are respectively communicated with a second third water outlet branch and a fourth water outlet branch, and the orientation of the valve of the second three-way valve is controlled to control a water outlet channel of the second treatment chamber, specifically, when the third water outlet branch is communicated with the second treatment chamber and the fourth water outlet branch is disconnected with the second treatment chamber, purified water is discharged from the second treatment chamber to a fresh water outlet through a second water outlet pipe and the third water outlet branch; when the second three-way valve enables the fourth water outlet branch to be communicated with the second treatment chamber and the third water outlet branch to be disconnected with the second treatment chamber, the purified water is discharged to the concentrated water outlet from the second treatment chamber through the second water outlet pipe and the fourth water outlet branch.

In the above technical solution, the method further comprises: the water path switching device is provided with two inlets which are respectively communicated with the first water outlet pipe and the second water outlet pipe, and two outlets which are respectively communicated with the fresh water outlet and the concentrated water outlet, wherein the first water outlet branch, the second water outlet branch, the third water outlet branch and the fourth water outlet branch are arranged on the water path switching device.

In the technical scheme, the waterway switching device is arranged in the waterway system, and the two inlets communicated with the first water outlet pipe and the second water outlet pipe are arranged, so that the purified water can enter the waterway switching device through the water outlet pipes, the inflow of the water is effectively controlled, and the accuracy of controlling the inflow of the water is improved. In addition, two outlets respectively communicated with the fresh water outlet and the concentrated water outlet are arranged on the waterway switching device, so that water can be accurately discharged from the treatment chamber, and the accuracy of controlling the discharge of the water is improved.

In addition, set up first play water branch road, second play water branch road, third play water branch road and fourth play water branch road on water route auto-change over device, and then can control the flow direction of water, improve the accuracy of control water flow direction.

A technical solution of a second aspect of the present invention provides a water purifying apparatus, including: the water inlet and the water outlet are arranged on the box body; according to the waterway system defined by any one of the technical schemes, a water inlet pipeline of the waterway system is communicated to the water inlet, and a water outlet pipeline corresponding to one of the first treatment chamber and the second treatment chamber of the waterway system, which has lower ion concentration, is communicated to the water outlet.

According to the water purifying equipment provided by the invention, the water inlet and the water outlet are arranged on the box body, so that water to be purified can be conveniently led in through the water inlet, and can be led out through the water outlet after being purified by the first treatment chamber and the second treatment chamber in the waterway system.

In the above technical solution, the method further comprises: purification membrane stack, purification membrane stack includes: the membrane component structure comprises a membrane component structure and electrodes arranged at two ends of the membrane component structure, wherein a first treatment chamber and a second treatment chamber are formed in the membrane component structure.

In the technical scheme, by arranging the membrane component structure, under the combined action of the membrane component structure and the electrodes arranged at two ends of the membrane component structure, a reversed electrodialysis membrane stack with a first treatment chamber and a second treatment chamber can be formed, specifically, the membrane component structure can selectively permeate ions, the electrodes can provide an electric field for the first treatment chamber and the second treatment chamber so as to realize the separation of anions and cations, and the moving direction of the ions can be changed by applying different voltages to the electrodes in the working process, so that the concentrated water and the fresh water in the first treatment chamber and the second treatment chamber are changed, for example, the first treatment chamber is a fresh water chamber before the voltage is not changed, the first treatment chamber is a concentrated water chamber after the voltage is changed, the second treatment chamber is a fresh water chamber, the sediment on one side of the original membrane surface can be dissolved, and gradually precipitated on the other side, and the possibility of scaling after the membrane component structure and the electrodes are used for a long time can be effectively reduced, the service life is prolonged.

In the above technical solution, the membrane module structure includes a plurality of ion exchange membranes and electrode slots disposed on both sides of all the ion exchange membranes, and the fluid on both sides of each ion exchange membrane has different ionic properties of ions, wherein the electrodes are detachably connected to the electrode slots, and a first treatment chamber and a second treatment chamber are formed between the plurality of ion exchange membranes.

In the technical scheme, the membrane module structure comprises a plurality of ion exchange membranes and electrode grooves, electrodes are arranged in the electrode grooves, an electric field can be generated for the ion exchange membranes so as to selectively permeate ions under the action of each ion exchange membrane, for example, anions or cations can be selectively permeated, because the ions of the ions contained in the fluid at the two sides of each ion exchange membrane are different in ionicity, under the action of the ion exchange membranes, the electrodialysis purification of the water flowing into the purification membrane stack and the electrode inversion when the electrode voltage is changed are more facilitated, particularly, the electrodes are detachably arranged in the electrode grooves, the electrodes are damaged, when the electric field cannot be generated, only the electrodes which are damaged need to be replaced, the normal operation of the membrane stack can be realized, and the service life is prolonged.

In the above technical solution, the method further comprises: and a fixed flow path provided between the electrode cell and the ion exchange membrane adjacent to the electrode cell.

In the technical scheme, the fixed flow path is arranged between the electrode tank and the adjacent ion exchange membrane, and when the voltage applied to the electrodes at two ends is changed, the fixed flow path does not move so as to provide ions required by the ion exchange membrane and ensure the normal operation of the reversed electrode.

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 the technical scheme, by arranging five ion exchange membranes, four treatment chambers can be formed between the five ion exchange membranes, and two of the four treatment chambers are respectively formed into a first treatment chamber and a second treatment chamber, on one hand, the water pressure in the water purification process of different treatment chambers can be controlled by adjusting the water inlet flow rate proportion, the problems of water leakage or reduced desalination rate and the like of a membrane stack in a water path system caused by overlarge pressure are prevented, the service life of the equipment is prolonged, on the other hand, by adopting the arrangement mode, the ionicity of ions in fluid at two sides of each ion exchange membrane can be effectively utilized, in short, under the action of electrodes, the ionicity of the five ion exchange membranes is sequentially anion-cation-anion, and when two sides of a treatment chamber are respectively anion-cation, the ion exchange membranes can be defined as the first treatment chamber, when the two sides of the processing chamber are respectively positive-negative, it can be defined as the second processing chamber to reduce the arrangement of unnecessary exchange membranes, and a plurality of processing chambers are formed to the maximum extent under the action of limited ion exchange membranes to reduce the unnecessary production cost.

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 above-mentioned technical scheme, the one end opening of electrode tank, the inner wall that open-ended one side was kept away from in the electrode tank is equipped with first joint portion, and second joint portion is located to the outer wall of electrode, realizes dismantling of electrode and electrode tank through the cooperation of first joint portion and second joint portion and is connected.

In this technical scheme, through setting up first joint portion and second joint portion, can realize that the electrode inserts the fixed behind the electrode tank through the opening, specifically, the inner wall of open-ended one side is kept away from to the electrode tank is located to first joint portion, and the outer wall of electrode is located to second joint portion, under the combined action of the two to reduce the electrode and take place the landing of electrode in the operation process, thereby can't provide the possibility that the electric field realized the electrodialysis, guarantee the stability of working process.

It should be noted that the first clamping portion is arranged on the inner wall of the electrode tank on the side away from the opening, when the upper side of the electrode tank is opened, the first clamping portion is arranged on the inner wall of the lower side of the electrode tank, and when the right side of the electrode tank is opened, the first clamping portion is arranged on the inner wall of the left side of the electrode tank.

In the technical scheme, an electric wire is arranged at one end of the electrode, which is far away from the second clamping part; and/or the water purifying equipment also comprises a first electric contact point and a second electric contact point which are respectively arranged on the first clamping part and the second clamping part, and the first electric contact point and the second electric contact point are connected to form a passage.

In this technical scheme, because the electrode needs the circular telegram just can normal use, so can set up the electric wire in the one end that the second joint portion was kept away from to the electrode, when the electrode inserted the electrode tank promptly, be close to open-ended one end and set up the electric wire to do benefit to drawing forth of electric wire and being connected with external power, perhaps, realize the electricity through the electrical contact point who locates first joint portion and second joint portion respectively and connect, thereby make the electrode can follow the membrane and pile and acquire the electric energy, in order to realize the normal generation of electric field.

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 illustrates a schematic structural view of a waterway system according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural view of a waterway system according to another embodiment of the present invention;

FIG. 3 illustrates a schematic structural view of a waterway system according to another embodiment of the present invention;

FIG. 4 illustrates a schematic structural view of a waterway system according to another embodiment of the present invention;

fig. 5 is a block diagram schematically illustrating a structure of a water purifying apparatus according to an embodiment of the present invention;

fig. 6 is a schematic view showing a structure of a purification membrane stack in a water purifying apparatus according to an embodiment of the present invention;

fig. 7 is a schematic view showing a structure of a purification membrane stack in a water purifying apparatus according to an embodiment of the present invention;

fig. 8 is a schematic view showing a structure in which electrodes and electrode tanks are coupled in a water purifying apparatus according to an embodiment of the present invention;

fig. 9 is a schematic view showing a structure of the electrode and the electrode tank in the 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:

400 first treatment chamber, 500 second treatment chamber, 102 first main water inlet pipe, 104 second main water inlet pipe, 114 first flow valve, 116 second flow valve, 212 first switch valve, 214 second switch valve, 216 third switch valve, 218 fourth switch valve, 302 first water outlet pipe, 304 second water outlet pipe, 306 first water outlet branch pipe, 308 second water outlet branch pipe, 310 third water outlet branch pipe, 312 fourth water outlet branch pipe, 402 first three-way valve, 404 second three-way valve, 406 waterway switching device, 600 water purification equipment, 602 box body, 700 purification membrane stack, 702 electrode, 7022 second clamping part, 7024 second electric contact point, 704 ion exchange membrane, 706 electrode slot, 7062 first clamping part, 7064 first electric contact point, 708 fixed flow path, 710 electric wire.

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 9.

Example one

As shown in fig. 1, the flow direction of the fluid is shown by the arrows in the figure, and the waterway system according to an embodiment of the present invention includes: a water inlet line, a water outlet line, a first valve assembly, a first processing chamber 400, and a second processing chamber 500, the flow of fluid in the first processing chamber 400 is restricted to be opposite to the flow of fluid in the second processing chamber 500, it can be understood that in the general treatment chamber, the water inlet directions of the concentrated water flow channel and the fresh water flow channel are consistent and the water quality of the inlet water is the same, in the purification process, the purification degree of water in the fresh water flow channel from the front end to the rear end of the electric purification module is higher and higher, the water quality is more and more pure, impurities in the concentrated water flow channel are gradually increased, the concentration difference of two sides of the concentrated water is very large, the osmotic pressure is very high, the electric field action needs to overcome the osmotic action to enable ions to migrate from the fresh water flow channel to the concentrated water flow channel, the energy consumption is higher, by defining two processing chambers with opposite flow directions, the concentration difference between the two processing chambers can be effectively reduced, and then reduce the harmful effects that osmotic pressure purified waterway system, can effectively improve purifying effect. The two ends of the first treatment chamber 400 and the second treatment chamber 500 are respectively communicated with a water inlet pipeline and a water outlet pipeline, so that water to be purified is respectively conveyed to the first treatment chamber 400 and the second treatment chamber 500 through the water inlet pipeline, and is discharged through the water outlet pipeline after being treated by the first treatment chamber 400 and the second treatment chamber 500, the first valve assembly is arranged on the water inlet pipeline, on one hand, the first valve assembly is controlled to control the water pressure entering different treatment chambers in a water purification process, so that the problems of water leakage or desalination rate reduction and the like of a membrane stack in a water channel system caused by overlarge pressure are prevented, the service life of the equipment is prolonged, on the other hand, water flow can be distributed according to a certain proportion by controlling the opening and closing of the first valve assembly, and the accuracy of water control is improved. Further, the water distributed in a certain ratio may flow into the first and second treating

chambers

400 and 500, respectively, and then be discharged through the water outlet line, thereby achieving a water purifying operation.

The first and

second process chambers

400 and 500 serve as main process modules of the reverse electrodialysis membrane stack, and ions of the fluid in the first process chamber 400 and ions of the fluid in the second process chamber 500 can permeate each other under the action of the electric field to change the ion concentration of the fluid in the first and

second process chambers

400 and 500.

In one embodiment, when fresh water is stored in the first processing chamber 400, concentrated water is stored in the second processing chamber 500.

In another embodiment, when fresh water is stored in the second processing chamber 500, concentrated water is stored in the first processing chamber 400.

Furthermore, as shown in fig. 1, the flow direction of the first processing chamber 400 is from left to right, the flow direction of the second processing chamber 500 is from right to left, the concentration of the fresh water channel is gradually reduced, and the concentration of the concentrated water channel is gradually increased, so that the concentration at the left end and the concentration at the right end of the whole processing chamber are uniform, and the concentration difference between the two processing chambers is effectively reduced, thereby reducing the negative effect of osmotic pressure on the purification process, and improving the energy consumption utilization rate and the purification effect.

Example two

As shown in fig. 2, the flow direction of the fluid is shown by the arrows in the figure, and the waterway system according to the further embodiment of the present invention includes:

the water purification device comprises a first main water inlet pipe 102, a second main water inlet pipe 104, a water outlet pipeline, a first flow valve 114, a second flow valve 116, a first treatment chamber 400 and a second treatment chamber 500, wherein the flow direction of fluid in the first treatment chamber 400 is limited to be opposite to that of fluid in the second treatment chamber 500, so that the concentration difference between the two treatment chambers can be effectively reduced, the adverse effect of osmotic pressure on purification of a waterway system is further reduced, and the purification effect can be effectively improved.

The first main water inlet pipe 102 is provided to communicate with the first processing chamber 400. I.e., as water flows into the first treatment chamber 400 through the first main inlet pipe 102, it is discharged from the outlet line. Likewise, the second main water inlet pipe 104 communicates with the second process chamber 500. That is, the water flowing into the second treatment chamber 500 from the second main water inlet pipe 104 is discharged through the water outlet pipe chamber, and thus the flow direction of the water is effectively controlled to supply water to the first treatment chamber 400 and the second treatment chamber 500 through the first water inlet pipe and the second water inlet pipe, respectively, and to control the flow rate of the first water inlet pipe and the second water inlet pipe, respectively, through the first valve assembly, so as to supply water of unequal amounts to the first treatment chamber 400 and the second treatment chamber 500, and thus the first treatment chamber 400 and the second treatment chamber 500 obtain a specific recovery ratio of fresh water after the water purification operation, and thus the water purification effect is improved.

The first flow valve 114 effectively controls the amount of water entering the first inlet pipe, that is, the amount of water discharged through the treatment chamber, and thus improves the accuracy of the water purifying operation. Similarly, the second flow valve 116 is disposed on the second main water inlet pipe 104 to control the amount of water entering the second treatment chamber 500, so as to improve the accuracy of the water output.

In one specific embodiment, the first flow valve 114 and the second flow valve 116 control the flow of the fluid into the first processing chamber 400 and the second processing chamber 500, and the ion concentration generated after the purging corresponds to the applied voltage as shown in the following table:

TDS(ppm)	voltage (V)
		800-1000	100
600-800	80
		400-600	60
200-400	40
		0-200	20

The correspondence between the ion concentration generated after purification and the recovery rate of the whole system is shown in the following table:

EXAMPLE III

A waterway system according to still another embodiment of the present invention, includes: the water purification device comprises a first main water inlet pipe 102, a second main water inlet pipe 104, a first water outlet pipe 302, a second water outlet pipe 304, a first water outlet branch pipe 306, a second water outlet branch pipe 308, a third water outlet branch pipe 310, a fourth water outlet branch pipe 312, a first flow valve 114, a second flow valve 116, a first treatment chamber 400 and a second treatment chamber 500, wherein the flow direction of fluid in the first treatment chamber 400 is limited to be opposite to that of fluid in the second treatment chamber 500, so that the concentration difference between the two treatment chambers can be effectively reduced, the adverse effect of osmotic pressure on purification of a waterway system is further reduced, and the purification effect can be effectively improved.

Through setting up the outlet pipe way in the water piping system, namely first outlet pipe 302 and second outlet pipe 304, in order to discharge water from two outlet pipes accurately, and then improve the accuracy of controlling water discharge, can understand, the ion concentration of one in first treatment chamber 400 and second treatment chamber 500 is higher, the ion concentration of the other is lower, and when the user used water daily, can only use the water that the ion concentration is lower usually, so through setting up two outlet pipes, can be according to the ion concentration in first treatment chamber 400 and the ion concentration's of second treatment chamber 500 comparison result communicates the ion concentration lower with external delivery port, convenience of customers uses.

Wherein one end of the first water outlet pipe 302 is provided to communicate with the first treatment chamber 400 so that water is discharged from the first treatment chamber 400, and one end of the second water outlet pipe 304 is provided to communicate with the second treatment chamber 500 so that water is accurately discharged from the second treatment chamber 500.

In addition, by limiting the connection relationship of the four water outlet branch pipes with the first water outlet pipe 302, the fresh water outlet and the concentrated water outlet, the water can smoothly flow out in the process of purifying the water in the first treatment chamber 400 and the second treatment chamber 500, so that the two treatment chambers can be alternately controlled, and the reliability of the water purifying operation can be improved. Specifically, the first treatment chamber 400 is communicated with the fresh water outlet sequentially through the first water outlet pipe 302, the first water outlet branch pipe 306, the first treatment chamber 400 is communicated with the concentrated water outlet sequentially through the first water outlet pipe 302, the second water outlet branch pipe 308, the second treatment chamber 500 is communicated with the fresh water outlet sequentially through the second water outlet pipe 304, the third water outlet branch pipe 310, the second treatment chamber 500 is communicated with the concentrated water outlet sequentially through the second water outlet pipe 304, the fourth water outlet branch pipe 312, and the flow direction of water is controlled.

Example four

As shown in fig. 2, based on the third embodiment, when the electrodes are reversed, the system is switched between the rich and the lean water paths, and it is necessary to ensure the rich and lean water outlets to be fixed for the convenience of the user, the system is switched between the rich and the lean water outlets by opening and closing the solenoid valves, that is, the first switching valve 212 is disposed on the first branch outlet pipe 306, the second switching valve 214 is disposed on the second branch outlet pipe 308, and one of the first switching valve 212 and the second switching valve 214 is opened and the other is closed, so that the fluid in the first processing chamber 400 can accurately flow out from the rich water outlet or the lean water outlet according to the current ion concentration, and similarly, the third switching valve 216 is disposed on the third branch outlet pipe 310, the fourth switching valve 218 is disposed on the fourth branch outlet pipe 312, and one of the third switching valve 216 and the fourth switching valve 218 is opened and the other is closed, so that the fluid in the second processing chamber 500 can accurately flow out from the rich water outlet or the lean water outlet according to the current ion concentration And (4) flowing out.

Furthermore, a microcontroller is further provided and is electrically connected with the first switch valve 212, the second switch valve 214, the third switch valve 216 and the fourth switch valve 218, and the microcontroller can effectively control the opening and closing of the first switch valve 212, the second switch valve 214, the third switch valve 216 and the fourth switch valve 218, so as to realize the switching of the water outlet branches between the first treatment chamber 400 and the second treatment chamber 500 and the concentrated water outlet and the fresh water outlet respectively, that is, the water can be discharged from the first treatment chamber 400 through the first water outlet branch pipe 306, and the water can be discharged from the second treatment chamber 500 through the third water outlet branch pipe 310; or the water is drained from the first treatment chamber 400 through the second water outlet branch pipe 308 and the water is drained from the fourth water outlet branch pipe 312 through the second treatment chamber 500, so as to meet the normal use requirement of the user. Further, the microcontroller controls the opening and closing of the four switch valves, namely, controls the water purification operation on the water, so that the water is discharged from the two treatment chambers respectively with a certain water amount, and the reliability of the water purification operation is improved.

It can be understood that the concentration of the fluid discharged from the concentrated water outlet and the concentration of the fluid discharged from the fresh water outlet are not changed, that is, the concentration of the fluid discharged from the concentrated water outlet is greater than that of the fluid discharged from the fresh water outlet, which is more beneficial to the daily use of users.

Further, the microcontroller is electrically connected to the first flow valve 114 and the second flow valve 116, and then the opening degree of the first flow valve 114 and the second flow valve 116 is controlled to further control the flow rate of the first main water inlet pipe 102 and the second main water inlet pipe 104, so that the amount of the water to be purified, which is respectively delivered to the first treatment chamber 400 and the second treatment chamber 500 by the first main water inlet pipe 102 and the second main water inlet pipe 104, is in a set proportion, and thus a specific fresh water recovery ratio is obtained, a proper water pressure is maintained, the desalination rate is improved, and further the water purification effect is improved.

During normal purging, the first flow valve 114 controls the fresh water flow and the second flow valve 116 controls the rich water flow, and during reverse polarity purging, the first flow valve 114 controls the rich water flow and the second flow valve 116 controls the fresh water flow.

EXAMPLE five

As shown in fig. 3, the flow direction of the fluid is as shown by arrows in the figure, on the basis of the third embodiment, in order to simplify the components and the space occupied by the system, a first three-way valve 402 and a second three-way valve 404 are provided, two valve ports of the first three-way valve 402 are respectively communicated with the first water outlet branch and the second water outlet branch, and the other valve port of the first three-way valve 402 is communicated with the first water outlet pipe 302, and the direction of the valve of the first three-way valve 402 is controlled to control the water outlet channel flowing out through the first treatment chamber 400, specifically, when the first three-way valve 402 makes the first water outlet branch communicated with the first treatment chamber 400 and the second water outlet branch disconnected with the first treatment chamber 400, the purified fresh water is drained from the first treatment chamber 400 to the fresh water outlet through the first water outlet pipe 302 and the first water outlet branch; when the second water outlet branch is communicated with the first treatment chamber 400 and the first water outlet branch is disconnected from the first treatment chamber 400 by the first three-way valve 402, the purified concentrated water is discharged to a concentrated water outlet from the first treatment chamber 400 through the first water outlet pipe 302 and the second water outlet branch; similarly, by providing two valve ports of the second three-way valve 404 to be respectively communicated with the second third water outlet branch and the fourth water outlet branch, and by controlling the orientation of the valve of the second three-way valve 404, the water outlet channel of the second treatment chamber 500 is controlled, specifically, when the second three-way valve 404 connects the third water outlet branch with the second treatment chamber 500 and the fourth water outlet branch is disconnected from the second treatment chamber 500, the purified water is discharged to the fresh water outlet through the second water outlet pipe 304 and the third water outlet branch by the second treatment chamber 500; when the fourth outlet branch is connected to the second treatment chamber 500 and the third outlet branch is disconnected from the second treatment chamber 500 by the second three-way valve 404, the purified water is discharged to the concentrated water outlet through the second outlet pipe 304 and the fourth outlet branch by the second treatment chamber 500.

EXAMPLE six

As shown in fig. 4, the flow direction of the fluid is as shown by the arrow in the figure, and on the basis of the third embodiment, a water path switching device 406 is provided, and two inlets communicating with the first water outlet pipe 302 and the second water outlet pipe 304 are provided, so that the purified water can enter the water path switching device 406 through the water outlet pipes, thereby effectively controlling the inflow of the water and improving the accuracy of controlling the inflow of the water. In addition, two outlets respectively communicated with the fresh water outlet and the concentrated water outlet are arranged on the waterway switching device, so that water can be accurately discharged from the treatment chamber, and the accuracy of controlling the discharge of the water is improved.

It is understood that the waterway switching device 406 may be a two-position four-way solenoid valve.

EXAMPLE seven

As shown in fig. 5, an embodiment of the present invention discloses a water purifying apparatus 600, including: a box body 602, which is provided with a water inlet and a water outlet; the waterway system defined in any of the above embodiments has the technical effects of any of the above embodiments, and is not described herein again. The water inlet pipeline of the waterway system is communicated to the water inlet, and the water outlet pipeline corresponding to the lower fluid concentration in the first treatment chamber and the second treatment chamber of the waterway system is communicated to the water outlet.

Example eight

As shown in fig. 6 and 7, an embodiment of the present invention discloses a water purifying apparatus 600, including: the box 602 is provided with a water inlet and a water outlet, a water inlet pipeline of the waterway system is communicated to the water inlet, and a water outlet pipeline corresponding to one of the first treatment chamber and the second treatment chamber of the waterway system with lower fluid concentration is communicated to the water outlet. In addition, by providing the purification membrane stack 700 with a membrane module structure and an electrode 702, under the combined action of the membrane module structure and the electrodes 702 arranged at two ends of the membrane module structure, a reversed-polarity electrodialysis membrane stack having a first treatment chamber and a second treatment chamber can be formed, specifically, the membrane module structure can selectively permeate ions, the electrode 702 can provide an electric field for the first treatment chamber and the second treatment chamber to realize the separation of anions and cations, and by applying different voltages to the electrode 702 during the operation, the moving direction of the ions can be changed, so that the concentrated water and the fresh water in the first treatment chamber and the second treatment chamber change, for example, the first treatment chamber is a fresh water chamber before the voltage is not changed, the first treatment chamber is a concentrated water chamber after the voltage is changed, the second treatment chamber is a fresh water chamber, the sediment on one side of the original membrane can be dissolved and gradually precipitate on the other side, the possibility of scaling of the membrane module structure and the electrode 702 after long-term use can be effectively reduced, and the service life is prolonged.

Further, the membrane module structure includes a plurality of ion exchange membranes 704 and electrode grooves 706, and by disposing the electrodes 702 in the electrode grooves 706, an electric field can be generated for the ion exchange membranes 704 to selectively transmit ions, such as selectively transmitting anions or selectively transmitting cations, under the action of each ion exchange membrane 704, because the ionic properties of the ions contained in the fluid on both sides of each ion exchange membrane 704 are different, under the action of the plurality of ion exchange membranes 704, it is more beneficial to perform electrodialysis purification on the water flowing into the purification membrane stack 700 and to reverse the electrode when the voltage of the electrodes 702 is changed, and particularly, the electrodes 702 are detachably disposed in the electrode grooves 706, when the electrodes 702 are damaged and the electric field cannot be generated, only the damaged electrodes 702 are needed to be replaced, so that the normal operation of the membrane stack can be realized, and the service life can be prolonged.

In a specific embodiment, by providing the fixed flow path 708 between the electrode tank 706 and the adjacent ion exchange membrane 704, the fixed flow path 708 does not move when the voltage applied to the electrodes 702 at the two ends changes, so as to provide the ions required by the ion exchange membrane 704, thereby ensuring the normal operation of the reversed electrode.

Example nine

The embodiment of the invention discloses a water purifying apparatus 600, comprising: the box 602 is provided with a water inlet and a water outlet, a water inlet pipeline of the waterway system is communicated to the water inlet, and a water outlet pipeline corresponding to one of the first treatment chamber and the second treatment chamber of the waterway system with lower fluid concentration is communicated to the water outlet. Further, by providing the purification membrane stack 700 with five ion exchange membranes 704 and two electrodes 702, four process chambers are formed between the five ion exchange membranes 704, two of the four process chambers that are spaced apart form a first process chamber, and the other two form a second process chamber. Four treatment chambers can be formed between the ion exchange membranes, two treatment chambers which are arranged at intervals among the four treatment chambers form a first treatment chamber and a second treatment chamber respectively, on one hand, the water pressure in the water purification process entering different treatment chambers can be controlled by adjusting the water inlet flow ratio, the problems of water leakage or reduced desalination rate and the like of a membrane stack in a water channel system caused by overlarge pressure are prevented, the service life of equipment is prolonged, on the other hand, by adopting the arrangement mode, the ionicity of ions in fluid at two sides of each ion exchange membrane 704 can be effectively utilized, in short, under the action of the electrodes 702, the ionicities of the five ion exchange membranes 704 are anion-cation-anion in turn, when two sides of the treatment chambers are respectively anion-cation, the ion exchange membranes can be defined as the first treatment chamber, and when two sides of the treatment chambers are respectively cation-anion, it can be defined as a second process chamber to reduce the number of unnecessary exchange membranes, and a plurality of process chambers can be formed to the maximum extent by the limited ion exchange membranes 704 to reduce unnecessary production costs.

In one embodiment, a fixed flow path 708 is provided between the electrode tank 706 and the adjacent ion exchange membrane 704, and each ion exchange membrane 704 is selectively permeable to ions to achieve the normal function of reverse polarity and increase the lifetime of the membrane stack.

As shown in fig. 8, further, by providing the first clamping portion 7062 and the second clamping portion 7022, the electrode 702 can be fixed after being inserted into the electrode slot 706 through the opening, specifically, the first clamping portion 7062 is disposed on the inner wall of one side of the electrode slot 706 away from the opening, and the second clamping portion 7022 is disposed on the outer wall of the electrode 702, under the combined action of the first clamping portion and the second clamping portion, so as to reduce the occurrence of the electrode 702 slipping down in the operation process, thereby failing to provide the possibility of electric field to realize electrodialysis, and ensuring the stability of the operation process.

It should be noted that the first clamping portion 7062 is disposed on the inner wall of the electrode slot 706 on the side away from the opening, when the electrode slot 706 is opened on the upper side, the first clamping portion 7062 is disposed on the inner wall of the lower side of the electrode slot 706, and when the electrode slot 706 is opened on the right side, the first clamping portion 7062 is disposed on the inner wall of the left side of the electrode slot 706.

In one specific embodiment, as shown in fig. 7, an end of the electrode 702 away from the second clamping portion 7022 is provided with an electrical wire 710.

As shown in fig. 9, in another specific embodiment, the device further includes a first electrical contact 7064 and a second electrical contact 7024 disposed on the first clamping portion 7062 and the second clamping portion 7022, respectively, and the first electrical contact 7064 and the second electrical contact 7024 are connected to form a path.

In conclusion, according to the waterway system and the water purification equipment provided by the invention, the water pressure entering different treatment chambers in the water purification process can be controlled by arranging the valve assembly on the water inlet pipeline, so that the problems of water leakage or desalination rate reduction and the like of a membrane stack in the waterway system caused by overlarge pressure are prevented, and the service life of the equipment is prolonged.

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

1. A waterway system, comprising:

the water inlet pipeline is provided with a first valve component;

the two ends of the first treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, the two ends of the second treatment chamber are respectively communicated with the water inlet pipeline and the water outlet pipeline, the first valve component can control the water inlet flow proportion of the first treatment chamber and the second treatment chamber,

wherein ions of the fluid within the first processing chamber and ions of the fluid within the second processing chamber are mutually permeable to change the ion concentration of the fluid within the first processing chamber and the second processing chamber, the fluid flow direction within the first processing chamber being opposite to the fluid flow direction within the second processing chamber.

2. The waterway system of claim 1, wherein the inlet conduit comprises:

a first main water inlet pipe and a second main water inlet pipe,

the first main water inlet pipe is communicated with the first treatment chamber, and the second main water inlet pipe is communicated with the second treatment chamber;

the first valve assembly specifically comprises: the first flow valve is arranged on the first main water inlet pipe; and the second flow valve is arranged on the second main water inlet pipe.

3. The waterway system of claim 2, wherein the outlet conduit comprises:

one end of the first water outlet pipe is communicated with the first treatment chamber;

and one end of the second water outlet pipe is communicated with the second treatment chamber.

4. The waterway system of claim 3, wherein the outlet conduit further comprises:

one end of the first water outlet branch pipe is communicated with the first water outlet pipe;

one end of the second water outlet branch pipe is communicated with the first water outlet pipe;

one end of the third water outlet branch pipe is communicated with the second water outlet pipe;

a fourth water outlet branch pipe, one end of which is communicated with the second water outlet pipe,

the other end of the first water outlet branch pipe and the other end of the third water outlet branch pipe are respectively communicated with a fresh water outlet, and the other end of the second water outlet branch pipe and the other end of the fourth water outlet branch pipe are respectively communicated with a concentrated water outlet.

5. The waterway system of claim 4, further comprising: the second valve assembly is located on going out the water pipeline, the second valve assembly includes:

the first switch valve is arranged on the first water outlet branch pipe;

a second switch valve arranged on the second water outlet branch pipe,

the third switch valve is arranged on the third water outlet branch pipe;

a fourth switch valve arranged on the fourth water outlet branch pipe,

one of the first switch valve and the second switch valve is opened, and the other is closed, and one of the third switch valve and the fourth switch valve is opened, and the other is closed.

6. The waterway system of claim 5, further comprising:

a microcontroller electrically connected to the first, second, third and fourth switching valves, the microcontroller being capable of controlling the opening and closing of the first, second, third and fourth switching valves,

the microcontroller is electrically connected with the first flow valve and the second flow valve so as to control the water inlet flow proportion of the first treatment chamber and the second treatment chamber through the opening degree of the first flow valve and the opening degree of the second flow valve.

7. The waterway system of claim 4, further comprising:

two valve ports of the first three-way valve are respectively communicated with the first water outlet branch and the second water outlet branch, and the other valve port of the first three-way valve is communicated with the first water outlet pipe;

and two valve ports of the second three-way valve are respectively communicated with the third water outlet branch and the fourth water outlet branch, and the other valve port of the second three-way valve is communicated with the second water outlet pipe.

8. The waterway system of claim 4, further comprising:

the waterway switching device is provided with two inlets which are respectively communicated with the first water outlet pipe and the second water outlet pipe, and two outlets which are respectively communicated with the fresh water outlet and the concentrated water outlet,

the first water outlet branch, the second water outlet branch, the third water outlet branch and the fourth water outlet branch are arranged on the waterway switching device.

9. A water purification apparatus, comprising:

the water inlet and the water outlet are arranged on the box body;

the waterway system of any one of claims 1-8, an inlet conduit of the waterway system being connected to the inlet, and an outlet conduit of the waterway system corresponding to the one of the first and second treatment chambers having the lower ion concentration being connected to the outlet.

10. The water purification apparatus of claim 9, further comprising: a purification membrane stack comprising:

a membrane module structure, and electrodes arranged at two ends of the membrane module structure,

wherein the membrane module structure forms the first and second process chambers therein.

11. The water purification apparatus of claim 10, wherein the membrane module structure comprises a plurality of ion exchange membranes and electrode grooves disposed on both sides of all the ion exchange membranes, the fluids on both sides of each ion exchange membrane have different ionic properties,

the electrode is detachably connected with the electrode groove, and the first treatment chamber and the second treatment chamber are arranged at intervals among the ion exchange membranes.

12. The water purification apparatus of claim 11, wherein the number of the ion exchange membranes is plural, and the ionic properties of any two adjacent ion exchange membranes are different.

13. The water purification apparatus of claim 12, further comprising:

and the fixed flow path is arranged between the electrode tank and the ion exchange membrane adjacent to the electrode tank.

14. The water purification apparatus of claim 11, wherein the number of the ion exchange membranes is five, four treatment chambers are formed between 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.

15. The water purifying device of claim 11, wherein one end of the electrode tank is open, a first clamping portion is disposed on an inner wall of one side of the electrode tank away from the opening, a second clamping portion is disposed on an outer wall of the electrode, and the electrode tank are detachably connected through cooperation of the first clamping portion and the second clamping portion.

16. The water purification apparatus of claim 15,

an electric wire is arranged at one end of the electrode, which is far away from the second clamping part; and/or

The water purifying equipment further comprises a first electric contact point and a second electric contact point which are respectively arranged on the first clamping part and the second clamping part, and the first electric contact point and the second electric contact point are connected to form a passage.