CN214270324U

CN214270324U - Water treatment system

Info

Publication number: CN214270324U
Application number: CN202022947475.5U
Authority: CN
Inventors: 宾倩韵; 孙天厚; 刘梦薇; 郑跃东
Original assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Current assignee: Foshan Midea Qinghu Water Purification Equipment Co ltd; Midea Group Co Ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-09-24
Anticipated expiration: 2030-12-10

Abstract

The embodiment of the utility model provides a water treatment system, water treatment system includes the membrane module structure, including a plurality of ion exchange membranes, form at least one first treatment chamber and at least one second treatment chamber between any two adjacent ion exchange membranes, the ion concentration of the fluid in adjacent first treatment chamber and second treatment chamber is different; the electrode group comprises two electrodes with different polarities, and the two electrodes are respectively arranged on two sides of the membrane component structure; and a voltage adjustment device electrically connected to the two electrodes, the voltage adjustment device being capable of adjusting a voltage between the two electrodes to change an ion concentration of the fluid within the first processing chamber and the second processing chamber. The technical scheme of the utility model water treatment system, can the on-line adjustment fluidic target ion concentration, for traditional water treatment system, can be applicable to more application scenes.

Description

Water treatment system

Technical Field

The utility model relates to a water purification technology field particularly, relates to a water treatment system.

Background

The ion concentration of the effluent of the water treatment system in the prior art is fixed, and the water treatment system can only be realized by replacing physical consumables when needing adjustment, cannot realize real-time adjustment, and cannot meet the water demand of users for different ion concentrations.

SUMMERY OF THE UTILITY MODEL

The present invention aims at least solving one of the technical problems existing in the prior art or the related art.

In view of this, a first aspect of embodiments of the present invention provides a water treatment system.

In order to achieve the above object, an embodiment of the first aspect of the present invention provides a water treatment system, including: the membrane component structure comprises a plurality of ion exchange membranes, at least one first treatment chamber and at least one second treatment chamber are formed between any two adjacent ion exchange membranes, and the ion concentrations of fluids in the adjacent first treatment chambers and the adjacent second treatment chambers are different; the two electrodes are respectively arranged on two sides of the membrane component structure; and a voltage adjustment device electrically connected to the two electrodes, the voltage adjustment device being capable of adjusting a voltage between the two electrodes to change an ion concentration of the fluid within the first processing chamber and the second processing chamber.

According to the utility model discloses a water treatment system is provided according to embodiment of first aspect, including membrane module structure, two electrodes and voltage regulation device, wherein, membrane module structure is the membrane module structure that has the effect of electrodialysis of falling electricity, and it mainly includes first treatment chamber, second treatment chamber and ion exchange membrane, and first treatment chamber and second treatment chamber are adjacent to be set up, and when the quantity of treatment chamber was a plurality of, first treatment chamber and second treatment chamber cross arrangement to make at least one side and the second treatment chamber of every first treatment chamber adjacent, and separate through ion exchange membrane between adjacent first treatment chamber and the second treatment chamber. In addition, the two electrodes on both sides of the membrane module structure have different polarities, and usually the two electrodes are an anode electrode and a cathode electrode, respectively. The voltage is applied to the two electrodes, an electric field which covers each of the first treatment chamber and the second treatment chamber is formed in the membrane component structure, and anions and cations in the fluid can be driven to move under the action of the electric field and enter the adjacent treatment chambers by passing through the ion exchange membrane, so that the ion concentrations of the fluids in the first treatment chamber and the second treatment chamber are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltages applied to the two electrodes, the more violent the movement of the ions, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentration of the fluid in the first and second processing chambers is in equilibrium with the voltage applied between the two electrodes, the ion concentration is no longer changed. Therefore, the ion concentration in the first and second processing chambers can be adjusted by adjusting the voltage values applied to the two electrodes, so that the ion concentration of the fluid in the processing chambers can be adjusted to an ion concentration value corresponding to the applied voltage. It is emphasized that the ion concentration of the fluid in the membrane module structure is changed by adjusting the voltage, and the ion concentration of the fluid discharged outwards is adjustable, so that different water requirements can be met by the water treatment system without replacing an ion exchange membrane in the membrane module structure, and the water treatment system is more convenient for users to use.

Further, the number of the first processing chamber and the second processing chamber may be plural, forming a serial water path. The series waterway can carry out multistage purification to the liquid in the membrane component structure, and different water requirements of different users can be met simultaneously by utilizing the fluids with different ion concentrations in different treatment chambers.

Further, when the fluid flows from the water inlet end to the water outlet end of the membrane module structure, namely, flows through the first treatment chamber and the second treatment chamber, the fluid is subjected to the electric field generated by the electrodes positioned on the two sides of the membrane module structure during the process of flowing inside the membrane module structure, so that the ion concentration of the fluid in different treatment chambers can be changed. Therefore, in the process of dynamic flow of fluid in the membrane module structure, the ion concentration of the fluid can be gradually changed, generally, on the basis of controlling the voltage on the two electrodes to be kept unchanged, the flow rate is higher, the degree of the ions in the fluid passing through the ion exchange membrane is lower, that is, the effect of changing the ion concentration is poorer, and conversely, if the flow rate is lower, the degree of the ions in the fluid passing through the ion exchange membrane is higher, that is, the effect of changing the ion concentration is better.

In addition, the utility model provides a water treatment system among the above-mentioned scheme can also have following additional technical characterstic:

in the above technical solution, the water treatment system further comprises: a piping component comprising: one end of the water inlet pipe group is respectively communicated with each first treatment chamber and each second treatment chamber; and one end of the water outlet pipe is communicated with the lower ion concentration fluid in the first treatment chamber and the second treatment chamber, the other end of the water outlet pipe is connected with the water using connector, and one end of the waste water pipe is communicated with the higher ion concentration fluid in the first treatment chamber and the second treatment chamber. Wherein, the water outlet pipe is provided with a first valve, and the waste water pipe is provided with a second valve.

In this embodiment, the water inlet pipe set is used to feed the fluid to be treated into the membrane module structure, and in particular, the fluid flowing into the membrane module structure flows into the first treatment chamber and the second treatment chamber, respectively. Since the water inlet pipe group is directly communicated with the first treatment chamber and the second treatment chamber, the ion concentration of the fluid fed into the first treatment chamber and the second treatment chamber is the same. The fluid flowing into the membrane module structure changes its ion concentration due to the electric field when flowing out of the first and second process chambers. The water outlet pipe is communicated with the lower fluid ion concentration in the first treatment chamber and the second treatment chamber, and the waste water pipe is communicated with the higher fluid ion concentration in the first treatment chamber and the second treatment chamber. The user can take or discard the fluid discharged by different pipes according to the requirement.

In addition, the water outlet pipe is provided with a first valve to control the on-off of the water outlet pipe, when the first valve is closed, the fluid in the water outlet pipe cannot be discharged from the water outlet pipe, and when the first valve is opened, the fluid in one of the first treatment chamber and the second treatment chamber, which has lower fluid ion concentration, is finally discharged from the water using connector through the water outlet pipe.

Likewise, by providing a second valve on the waste, the waste fluid cannot be drained from the waste when the second valve is closed. It is clear that if both the first and second valves are closed, the membrane module structure cannot discharge fluid, nor can the inlet pipe feed fluid to the membrane module structure.

Above-mentioned technical scheme well water processing system still includes: the raw water tank is communicated with the other end of the water inlet pipe group; the waste water tank is communicated with the other end of the waste water pipe; the fluid flows from the raw water tank into the first treatment chamber and the second treatment chamber through the water inlet pipe group, and the fluid with higher ion concentration in the first treatment chamber and the second treatment chamber flows into the waste water tank through the waste water pipe.

In this solution, a raw water tank and a waste water tank are further provided in the water treatment system, wherein a fluid to be treated is stored in the raw water tank, and the fluid can be sent to the membrane module structure through the water inlet pipe group by connecting the water inlet pipe group to the raw water tank, that is, the fluid flows into the first treatment chamber and the second treatment chamber through the water inlet pipe group. And the fluid with higher ion concentration discharged by the membrane component structure flows into a waste water tank. In addition, the raw water tank and the waste water tank are arranged, so that the fluid fed into the membrane module and the fluid with higher ion concentration discharged from the membrane module can be conveniently collected, and further, the fluid containing harmful ions or polluting the environment can be conveniently and intensively treated, so that the environment is protected.

Furthermore, the original water tank and the waste water tank are arranged, so that the whole process of sealing the fluid is facilitated, the fluid is further protected from being polluted by the environment, and the water treatment system has obvious application value for water treatment systems for scientific research.

In the above technical solution, the water treatment system further comprises: one end of the water diversion pipe is communicated with a water outlet pipe between the first valve and the membrane component structure, and the other end of the water diversion pipe is communicated with a waste water pipe between the second valve and the membrane component structure; and one end of the water return pipe is communicated with a pipe section between the second valve and the membrane component structure in the waste water pipe, and the other end of the water return pipe is communicated with the raw water tank, wherein the water division pipe is provided with a third valve, and the water return pipe is provided with a fourth valve.

In the technical scheme, two ends of the water distribution pipe are respectively communicated with the water outlet pipe and the waste water pipe, specifically, one end of the water distribution pipe is connected to the front of the first valve, namely the pipe section between the first valve and the membrane component structure, and the other end of the water distribution pipe is connected to the front of the second valve, namely the pipe section between the second valve and the membrane component structure, so that the fluid in the water outlet pipe can be guided into the waste water pipe and the water return pipe. And two ends of the water return pipe are respectively communicated with the waste water pipe and the raw water tank, so that the fluid of the waste water pipe can be guided into the raw water tank.

And when the third valve is closed, all the fluid with low ion concentration flows out from the water outlet pipe. In addition, a fourth valve is arranged on the water return pipe, when the fourth valve is opened, the fluid in the waste water pipe can flow into the raw water tank from the water return pipe, and when the fourth valve is closed, the fluid in the waste water pipe cannot flow into the raw water tank from the water return pipe.

Further, the first valve, the second valve, the third valve and the fourth valve may all be closed, fluid in the membrane module structure no longer flows out, obviously, fluid cannot flow into the membrane module structure, and fluid in the first processing chamber and the second processing chamber only flows to each other, and there is no tendency of flowing from the water inlet pipe to the water outlet pipe. In this way, the electric field formed by the electrodes on both sides of the membrane module structure has the most significant influence on the fluid ions, and further, the ion concentration of the fluid in the first processing chamber and the second processing chamber approaches the set ion concentration target value relatively quickly.

In the above technical solution, the water treatment system further comprises: and the first controller is electrically connected with the voltage regulating device and can control the voltage regulating device to regulate the voltage between the two electrodes.

In this technical scheme, through setting up in the first controller that the voltage regulation device electricity is connected, can be through controlling voltage regulation device to adjust the voltage between two electrodes, and then adjust the ion concentration of the interior fluidic of first processing chamber and second processing chamber. Compared with the method that two ends of a fixed power supply are directly connected to two electrodes, the voltage of the two electrodes is adjusted by adopting the control mode of the first controller, the ion concentration of the fluid flowing out through the water joint can be adjusted at any time, and different water requirements of users are met.

In the above technical solution, the water treatment system further comprises: and the second controller is respectively electrically connected with the first valve, the second valve, the third valve and the fourth valve, wherein the second controller is used for controlling the first valve and the second valve to be closed, the third valve and the fourth valve to be opened so as to enable the fluid flowing out of the membrane component structure to flow back to the original water tank, the second controller is also used for controlling the first valve and the second valve to be opened, the third valve and the fourth valve are closed so as to enable the fluid in the lower ion concentration one of the first treatment chamber and the second treatment chamber to be discharged outwards, and the fluid in the higher ion concentration one of the first treatment chamber and the second treatment chamber to flow to the waste water tank.

In this embodiment, the first valve, the second valve, the third valve, and the fourth valve can be controlled by providing the second controller. Wherein, four valves self have respectively and turn on and two kinds of operating mode effects of end, under the effect of second controller, mainly adopt two kinds of modes to first valve, second valve, the control of third valve, fourth valve: the first way is to open the first valve and the second valve and close the third valve and the fourth valve at the same time. At this time, the fluid with low ion concentration flowing out of the membrane module structure flows out of the water outlet pipe, and the fluid with high ion concentration flows into the waste water tank from the waste water pipe. The second way is to close the first and second valves and open the third and fourth valves simultaneously. At this time, the fluid with low ion concentration flowing out of the water outlet pipe enters the waste water pipe from the water diversion pipe. Since the second valve is closed at this time, the fluid with a low ion concentration cannot flow into the waste water tank, but flows into the raw water tank from the return pipe. Since the second valve is also closed at this time, the fluid having a high ion concentration flowing out of the membrane module structure also flows into the raw water tank from the return pipe.

In the second mode, the fluid flowing into the membrane module structure flows into the raw water tank from the return pipe. In this way, the operation state of the water treatment system can be unstable, especially the set ion concentration of the fluid flowing out of the water outlet pipe is inconsistent with the set target, and at this time, if the water discharged from the membrane module structure directly flows out of the water outlet pipe or flows into the waste water tank, the fluid with the required ion concentration can not be obtained. After the water treatment system stably runs for a period of time, the second controller is switched to the first control mode, so that the fluid discharged from the membrane module can reach the preset ion concentration.

Further, the second mode can also realize the flushing of the membrane module structure and the water outlet pipe. When the system starts to operate or the set target ion concentration of the fluid is changed, the membrane module structure and the water outlet pipe are washed, old fluid remained in the membrane module structure and the water outlet pipe can be washed away, and the fluid concentration of the outlet water can be ensured after washing.

Here, the return pipe may be connected to the raw water tank, and the fluid flowing out of the return pipe may be directly discharged to the outside of the water treatment system. But this would result in a waste of fluid. If the fluid contains harmful components, environmental pollution may also be caused.

In the above technical solution, the water treatment system further comprises: and the timer is electrically connected with the second controller and is used for determining the opening time of the first valve, the second valve, the third valve and the fourth valve.

In this embodiment, the second controller can control the opening and closing of the first valve, the second valve, the third valve, and the fourth valve according to the opening time provided by the timer, by the timer electrically connected to the second controller.

Specifically, the timer adjusts the time for which the first valve, the second valve, the third valve, and the fourth valve are all closed, thereby adjusting the degree to which the ion concentration of the fluid in the first processing chamber and the second processing chamber approaches the set target ion concentration. It will be appreciated that the greater the difference in the set ion concentrations of the fluids in the first and second processing chambers, the longer the time required for the ion concentrations of the fluids in the first and second processing chambers to be converted to the target ion concentrations.

Of course, the timer can also adjust the flushing degree of the membrane module structure and the water outlet pipe and the waste water pipe by adjusting the time when the first valve and the second valve are closed and the third valve and the fourth valve are opened.

Among the above-mentioned technical scheme, the water pipe group still includes: one end of the water inlet main pipe is communicated with the raw water tank; and one end of each water inlet branch pipe is connected with the water inlet main pipe, and the other end of each water inlet branch pipe is respectively connected with each first treatment chamber and each second treatment chamber.

In the technical scheme, the water inlet pipe group comprises a water inlet main pipe and a plurality of water inlet branch pipes. The fluid sent into the membrane module structure from the raw water tank firstly flows into the main water inlet pipe and respectively flows into the first treatment chamber and the second treatment chamber under the action of the branch water inlet pipe, so that the fluid to be treated is provided for the membrane module structure. Wherein, through setting up a plurality of branch pipes of intaking, can separate the water inlet of first treatment chamber and the water inlet of second treatment chamber, and then avoided the fluid of first treatment chamber and the fluid of second treatment chamber to take place to mix in water inlet department, influence the flow proportion of first treatment chamber and second treatment chamber, reduce the effect of handling ionic concentration in the fluid.

In the above technical solution, the water treatment system further comprises: the pump body is arranged on the water inlet main pipe and can drive fluid to flow to the membrane component structure.

In the technical scheme, the pump body is arranged on the water inlet main pipe and can increase the water pressure of fluid in the water inlet pipe.

Generally, water treatment systems require a water pressure to be maintained in the plumbing assembly to ensure proper flow of fluid in the plumbing assembly. The water pump assembly may provide water pressure to the water treatment system if the water treatment system has no other pressurized equipment.

In the above technical scheme, the water treatment system comprises: and each flow valve is arranged on one water inlet branch pipe, and the water inlet pipes of each first treatment chamber and each second treatment chamber.

In this solution, each of the water inlet branches connected to the first and second treatment chambers is provided with a flow valve which controls the flow of the fluid into the first and second treatment chambers.

It will be appreciated that the greater the flow rate, the faster the flow rate of the fluid within the membrane module structure and the smaller the difference in ion concentration between the first and second process chambers. The flow valve can control the flow into the membrane module structure, which has a direct effect on adjusting the ion concentration in the first and second process chambers.

Further, the flow valve is electrically connected to a first controller, and the first controller can set the flow value of the flow valve. When the first controller sets the ion concentration of the first processing chamber or the second processing chamber, the flow value of the flow valve can be set while setting the voltages of the two electrodes of the membrane module structure, and the adjustment of the ion concentration of the first processing chamber or the second processing chamber can be completed together with the voltage adjusting device.

Furthermore, the flow valve can also measure the current flow value, and the closed-loop control is realized for the control of the first controller.

Also, the flow valve is used to control the ratio of the flows into the first and second process chambers to meet different decontamination requirements,

in the above technical solution, the water treatment system further comprises: the preposed filter element is arranged on the water inlet main pipe and is positioned between the pump body and the membrane component structure; the post-positioned filter element is arranged on the water outlet pipe, and the fluid flowing out of the first valve is discharged outwards through the post-positioned filter element by the water joint.

In the technical scheme, the filter element is arranged, so that impurities in the fluid can be removed, specifically, the front filter element is arranged on the water inlet main pipe and can filter insoluble impurities such as silt and metal chips contained in the fluid flowing out of the original water tank, and therefore damage to the structure of the ion exchange membrane in the membrane module structure is reduced. And the water outlet pipe is provided with the post-positioned filter element, and the post-positioned filter element can improve the quality of the fluid discharged from the water outlet pipe. When the water treatment system is used for providing direct drinking water for users, the post-arranged filter element can improve the water quality, and particularly can eliminate peculiar smell in the water.

In the above technical solution, the water treatment system further comprises: and the heating device is arranged on the water outlet pipe and is close to the water joint.

In the technical scheme, the heating device is arranged on the pipe section of the water outlet pipe close to the water using connector, and the heating device can heat the fluid in the water outlet pipe. Therefore, when the required outlet water temperature is set, under the action of the heating device, when the fluid is discharged from the water joint, the temperature of the fluid can meet the use requirement of a user.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, or may be learned by practice of the invention.

Drawings

FIG. 1 shows a schematic structural diagram of a water treatment system according to an embodiment of the present invention;

FIG. 2 illustrates a schematic structural view of a water treatment system according to an embodiment of the present invention;

FIG. 3 illustrates a schematic structural view of a water treatment system according to an embodiment of the present invention;

FIG. 4 illustrates a schematic structural diagram of a water treatment system according to an embodiment of the present invention;

FIG. 5 illustrates a schematic structural diagram of a water treatment system according to an embodiment of the present invention;

FIG. 6 illustrates a schematic structural view of a water treatment system according to an embodiment of the present invention;

fig. 7 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 8 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 9 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 10 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 11 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 12 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 13 shows a schematic flow diagram of an ion concentration adjustment method according to an embodiment of the present invention;

fig. 14 shows a block diagram of a water treatment system according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 14 is:

100: a water treatment system; 102: a membrane module structure; 104: an ion exchange membrane; 106: a first processing chamber; 108: a second processing chamber; 110: an electrode group; 112: an electrode; 114: a voltage regulating device; 116: a tubing assembly; 118: a water inlet pipe group; 120: a water outlet pipe; 122: a waste pipe; 124: a first valve; 126: a second valve; 128: a raw water tank; 130: a wastewater tank; 154: a water joint is used; 132: a water diversion pipe; 134: a water return pipe; 136: a third valve; 138: a fourth valve; 140: a main water inlet pipe; 142: a water inlet branch pipe; 144: a pump body; 146: a flow valve; 148: a front filter element; 150: a post-positioned filter element; 152: a heating device; 156: a first controller; 158: a second controller; 160: a timer; 170: a processor; 180: a memory.

Detailed Description

In order to make the above objects, features and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings and detailed description. 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 application, however, embodiments of the present invention may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited to the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 14.

Example one

As shown in fig. 1, the present embodiment provides a water treatment system 100 including: the membrane module structure 102 is a membrane stack with reverse electrodialysis, and mainly comprises a first processing chamber 106, a second processing chamber 108 and an ion exchange membrane 104, wherein the first processing chamber 106 and the second processing chamber 108 are adjacently arranged, when the number of the processing chambers is multiple, the first processing chamber 106 and the second processing chamber 108 are arranged in a crossed manner, so that at least one side of each first processing chamber 106 is adjacent to the second processing chamber 108, and the adjacent first processing chamber 106 and the second processing chamber 108 are separated by the ion exchange membrane 104. The two electrodes 112 on both sides of the membrane module structure 102 have different polarities, and the two electrodes 112 are typically an anode electrode 112 and a cathode electrode 112, respectively. The application of voltage to the two electrodes 112 forms an electric field in the membrane module structure 102 to cover each of the first processing chamber 106 and the second processing chamber 108, and under the action of the electric field, the anions and cations in the fluid can be driven to move, and pass through the ion exchange membrane 104 to enter the adjacent processing chambers, so that the ion concentrations of the fluids in the first processing chamber 106 and the second processing chamber 108 are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltage applied to the two electrodes 112, the more the ions move, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentration of the fluid in the first and

second processing chambers

106 and 108 reaches equilibrium with the voltage applied between the two electrodes 112, the ion concentration does not change. Therefore, the ion concentration in the first and

second process chambers

106 and 108 can be adjusted by adjusting the voltage values applied to the two electrodes 112 so that the ion concentration of the fluid in the process chamber reaches an ion concentration value corresponding to the applied voltage. It is emphasized that by adjusting the voltage to change the ion concentration of the fluid in the membrane module structure 102, the ion concentration of the fluid discharged to the outside can be adjusted, so that the water treatment system 100 can meet different water requirements without replacing the ion exchange membrane 104 in the membrane module structure 102.

Further, the number of the first process chamber 106 and the second process chamber 108 may be plural, forming a serial water path. The series water circuit can purify the liquid in the membrane module structure 102 in multiple stages, and different water requirements of different users can be met simultaneously by utilizing fluids with different ion concentrations in different treatment chambers.

Further, as the fluid flows from the water inlet end to the water outlet end of the membrane module structure 102, i.e. through the first processing chamber 106 and the second processing chamber 108, during the fluid flow inside the membrane module structure 102, the fluid is subjected to the electric field generated by the electrodes 112 located at both sides of the membrane module structure 102, so as to change the ion concentration of the fluid in different processing chambers. Therefore, for the dynamic flowing process of the fluid in the membrane module structure 102, the ion concentration thereof will be gradually changed, generally, on the basis of controlling the voltage on the two electrodes 112 to be kept unchanged, the flow rate is higher, the ion in the fluid passes through the ion exchange membrane 104 to a lower extent, that is, the effect of changing the ion concentration is worse, and conversely, if the flow rate is lower, the ion in the fluid passes through the ion exchange membrane 104 to a higher extent, that is, the effect of changing the ion concentration is better.

Example two

The water treatment system 100 is further defined in the first embodiment, and as shown in fig. 2, the water treatment system 100 further includes a plumbing assembly 116, a raw water tank 128 and a waste water tank 130, and a water usage fitting 154. The piping assembly 116 includes a water inlet pipe set 118, a water outlet pipe 120, and a waste pipe 122. A first valve 124 is provided on the outlet pipe 120 and a second valve 126 is provided on the waste pipe 122.

The water inlet line set 118 has one end connected to the raw water tank 128 and the other end connected to the first treatment chamber 106 and the second treatment chamber 108 of the membrane module structure 102, and the water inlet line set 118 feeds water into the first treatment chamber 106 and the second treatment chamber 108, respectively. Since the water inlet tube set 118 is in direct communication with the first and

second process chambers

106, 108, the ion concentration of the fluid fed into the first and

second process chambers

106, 108 is the same. The fluid flowing into the membrane module structure 102 has different ion concentrations when flowing out of the first process chamber 106 and the second process chamber 108 due to the electric field. Wherein the outlet pipe 120 is in communication with the lower fluid ion concentration of the first and

second process chambers

106, 108, and conversely the waste pipe 122 is in communication with the higher fluid ion concentration of the first and

second process chambers

106, 108. The user can take or discard the fluid discharged by different pipes according to the requirement. A first valve 124 is disposed on the outlet pipe 120, and when the first valve 124 is closed, the fluid in the outlet pipe 120 cannot be discharged from the outlet pipe 120. A second valve 126 is provided in waste 122, and when second valve 126 is closed, fluid in waste 122 cannot be discharged from waste 122. It is apparent that if both first valve 124 and second valve 126 are closed, then membrane assembly structure 102 cannot discharge fluid, nor can the inlet pipe feed fluid to membrane assembly structure 102. When the first valve 124 is opened, the fluid in the one of the first and

second processing chambers

106 and 108 having the lower fluid ion concentration is eventually discharged from the water use connector 154 through the water outlet pipe 120.

The raw water tank 128 stores a fluid to be treated and is introduced into the first and

second treatment chambers

106 and 108 through the inlet pipes. The fluid with the higher ion concentration in the first and

second processing chambers

106 and 108 is discharged into the waste water tank 130. Raw water tank 128 and waste water tank 130 are provided to facilitate collection of fluid fed to membrane module structure 102 and fluid of higher ionic concentration discharged from membrane module structure 102. For fluids containing harmful ions or that may cause environmental pollution, centralized treatment may protect the environment.

Furthermore, the raw water tank 128 and the waste water tank 130 are arranged, so that the whole process of sealing the fluid is facilitated, the fluid is further protected from environmental pollution, and the water treatment system 100 has obvious application value for some water treatment systems 100 used for scientific research.

EXAMPLE III

As shown in fig. 1, 2 and 3, the present embodiment provides a water treatment system 100, including: the membrane module structure 102 comprises a membrane module structure 102 with reverse electrodialysis, two electrodes 112 and a voltage regulator 114, wherein the membrane module structure 102 mainly comprises a first processing chamber 106, a second processing chamber 108 and an ion exchange membrane 104, the first processing chamber 106 and the second processing chamber 108 are adjacently arranged, when the number of the processing chambers is multiple, the first processing chamber 106 and the second processing chamber 108 are arranged in a crossed manner, so that at least one side of each first processing chamber 106 is adjacent to the second processing chamber 108, and the adjacent first processing chamber 106 and the second processing chamber 108 are separated by the ion exchange membrane 104. The two electrodes 112 on both sides of the membrane module structure 102 have different polarities, and the two electrodes 112 are typically an anode electrode 112 and a cathode electrode 112, respectively. The application of voltage to the two electrodes 112 forms an electric field in the membrane module structure 102 to cover each of the first processing chamber 106 and the second processing chamber 108, and under the action of the electric field, the anions and cations in the fluid can be driven to move, and pass through the ion exchange membrane 104 to enter the adjacent processing chambers, so that the ion concentrations of the fluids in the first processing chamber 106 and the second processing chamber 108 are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltage applied to the two electrodes 112, the more the ions move, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentration of the fluid in the first and

second processing chambers

second process chambers

Further, the water treatment system 100 includes a plumbing assembly 116, a raw water tank 128 and a waste water tank 130 and a water usage fitting 154. The piping assembly 116 includes a water inlet pipe set 118, a water outlet pipe 120, and a waste pipe 122. A first valve 124 is provided on the outlet pipe 120 and a second valve 126 is provided on the waste pipe 122.

second process chambers

106, 108, the ion concentration of the fluid fed into the first and

second process chambers

second processing chambers

Raw water tank 128 holds a fluid to be treated and feeds membrane module structure 102 through an inlet pipe. The fluid having a higher ionic concentration exiting membrane module assembly 102 is discharged into waste water tank 130. A raw water tank 128 and a waste water tank 130 are provided to facilitate collection of the fluid fed to the membrane modules and the fluid having a higher ionic concentration discharged from the membrane modules. For fluids containing harmful ions or that may cause environmental pollution, centralized treatment may protect the environment.

Further, water treatment system 100 further includes a water diversion pipe 132 and a water return pipe 134, wherein one end of water diversion pipe 132 is communicated with water outlet pipe 120 connecting first valve 124 and membrane module structure 102, and the other end is communicated with waste water pipe 122 connecting second valve 126 and membrane module structure 102.

One end of the return pipe 134 is connected to the section of the waste water pipe 122 between the second valve 126 and the membrane module structure 102, and the other end is connected to the raw water tank 128, and the water distribution pipe 132 can guide the fluid in the water outlet pipe 120 into the waste water pipe 122 and the return pipe 134. A return line 134 may direct the flow from waste 122 to raw water tank 128. A third valve 136 is provided on the knock out pipe 132, and when the third valve 136 is opened, the fluid having a low ion concentration can flow into the waste pipe 122 through the knock out pipe 132, and when the third valve 136 is closed, all the fluid having a low ion concentration flows out from the outlet pipe 120. A fourth valve 138 is provided on the return pipe 134, and when the fourth valve 138 is opened, the fluid in the waste pipe 122 can flow from the return pipe 134 into the raw water tank 128, and when the fourth valve 138 is closed, the fluid in the waste pipe 122 cannot flow from the return pipe 134 into the raw water tank 128.

Further, the first valve 124, the second valve 126, the third valve 136, and the fourth valve 138 may all be closed, fluid in the membrane module structure 102 no longer flows out, and obviously fluid cannot flow into the membrane module structure 102, and fluid in the first processing chamber 106 and the second processing chamber 108 only flows into each other, and there is no tendency for the inlet pipe to flow to the outlet pipe 120. In this manner, the electric field formed by the electrodes 112 on both sides of the membrane module structure 102 has the most significant effect on the fluid ions, and thus the ion concentration of the fluid in the first and

second processing chambers

106 and 108 approaches the set ion concentration target value relatively quickly.

It will be appreciated that closing four valves simultaneously also prevents fluid from leaking out of membrane module structure 102. Closing the four valves ensures that fluid does not flow through the entire system's plumbing assembly 116, especially when the user temporarily does not require the water treatment system 100 to discharge fluid.

Example four

The water treatment system 100 is further defined on the basis of the third embodiment, and as shown in fig. 4, the water inlet pipe group 118 is divided into a water inlet main pipe 140 and a plurality of water inlet branch pipes 142. The fluid from the raw water tank 128 that is fed to the membrane module structure 102 is first fed to the main water inlet pipe 140. And then into a plurality of water inlet legs 142.

The plurality of water inlet branch pipes 142 can separate the water inlet pipe from the water inlet of the first treatment chamber 106 from the water inlet pipe from the water inlet of the second treatment chamber 108, thereby preventing the fluid in the first treatment chamber 106 from mixing with the fluid in the second treatment chamber 108 at the water inlet to affect the concentration of the treatment fluid.

The water inlet main pipe 140 is provided with a pump body 144, and the pump body 144 can increase the water pressure of the fluid in the water inlet pipe.

Generally speaking, the water circuit of the water treatment system 100 requires a water pressure to be maintained in the conduit assembly 116 to ensure a proper flow of fluid in the conduit assembly 116.

Further, the pump body 144 may stop providing water pressure to the waterway of the water treatment system 100 when needed, and the fluid in the water treatment system 100 may stop flowing because of the absence of water pressure.

A flow valve 146 is provided in each of the water inlet branches 142 connecting the first and

second treatment chambers

106, 108, the flow valve 146 controlling the flow of fluid into the first and

second treatment chambers

106, 108.

It will be appreciated that the greater the flow rate, the faster the fluid within the membrane module structure 102 is replaced, and the smaller the difference in ion concentration between the first process chamber 106 and the second process chamber 108. Flow valve 146 enables control of the flow into membrane module structure 102, which has a direct effect on adjusting the ion concentration in first process chamber 106 and second process chamber 108.

Further, the flow valve 146 is electrically connected to a first controller 156, and the first controller 156 may set the flow value of the flow valve 146. When the first controller 156 sets the ion concentration in the first process chamber 106 or the second process chamber 108, the adjustment of the ion concentration in the first process chamber 106 or the second process chamber 108 can be accomplished by setting the flow rate value of the flow valve 146 in conjunction with the voltage adjustment device 114 at the same time as setting the voltage of the two electrodes 112 of the membrane assembly structure 102.

Further, the flow valve 146 may also measure the current flow value to enable closed loop control of the flow valve 146 by the first controller 156.

EXAMPLE five

In addition to the fourth embodiment, further defining the water treatment system 100, as shown in fig. 5, the main water inlet pipe 140 is provided with a pre-filter 148, and the pre-filter 148 can filter out insoluble impurities contained in the fluid flowing out of the raw water tank 128. Such as silt, metal filings, etc.

The outlet pipe 120 is provided with a post-filter 150, and the post-filter 150 can improve the quality of the fluid discharged from the outlet pipe 120. When the water treatment system is used to provide direct drinking water to a user, the post-filter 150 can improve water quality, and particularly can remove odors from the water. The outlet pipe 120 is provided with a heating device 152, and the heating device 152 can heat the fluid in the outlet pipe 120.

Further, the user may set the temperature of the outlet water in the heating device 152, and when the fluid is discharged from the water use connector 154, the temperature of the discharged fluid can reach the temperature set by the user.

EXAMPLE six

Based on the fifth embodiment, the water treatment system 100 is further defined, as shown in fig. 6, the water treatment system 100 includes a first controller 156, and the first controller 156 can control the voltage regulator 114 to regulate the voltage between the two electrodes 112 of the membrane module structure 102, so as to regulate the ion concentration of the fluid in the first treatment chamber 106 and the second treatment chamber 108. Compared with the method that two ends of a fixed power supply are directly connected to the two electrodes 112, the voltage of the two electrodes 112 is adjusted in a control mode of the first controller 156, and the voltage is adjusted more conveniently.

Further, the water treatment system 100 includes a second controller 158, and the second controller 158 controls the first valve 124, the second valve 126, the third valve 136, and the fourth valve 138 in two ways:

the first way is to open the first valve 124 and the second valve 126 simultaneously and close the third valve 136 and the fourth valve 138. At this time, the fluid with a low ion concentration flowing out of the membrane module structure 102 flows out of the water outlet pipe 120, and the fluid with a high ion concentration flows out of the waste water pipe 122 to the waste water tank 130.

The second way is to close the first valve 124 and the second valve 126 and open the third valve 136 and the fourth valve 138 simultaneously. At this time, the fluid with low ion concentration flowing out of water outlet pipe 120 enters waste water pipe 122 from water knockout pipe 132. Since the second valve 126 is closed, the fluid with a low ion concentration cannot flow into the waste water tank 130, and flows into the raw water tank 128 from the return pipe 134. Since the second valve 126 is also closed at this time, the fluid having a high ion concentration flowing out of the membrane module structure 102 also flows into the raw water tank 128 from the return pipe 134.

The second way is to pass the fluid flowing into membrane module structure 102 from return pipe 134 into raw water tank 128. In this manner, the ion concentration of the fluid exiting outlet pipe 120 or waste 122 may not be consistent with the set target for situations where the water treatment system 100 is operating erratically, and in which case the desired ion concentration of the fluid may not be available if the water exiting membrane module assembly 102 is directed to exit outlet pipe 120 or flow into waste tank 130. After a period of stable operation of the water treatment system 100, the second controller 158 is switched to the first control mode to ensure that the fluid exiting the membrane module meets the predetermined ion concentration.

Further, the second mode can also realize the flushing of the membrane module structure 102 and the water outlet pipe 120. When the system starts to operate, or the set target ion concentration of the fluid is changed, the membrane module structure 102 and the water outlet pipe 120 are washed, old fluid remained in the membrane module structure 102 and the water outlet pipe 120 can be washed away, and the fluid concentration of the outlet water can be ensured after the washing.

Here, the return pipe 134 may be connected to the raw water tank 128, and the fluid flowing out of the return pipe 134 may be directly discharged to the outside of the water treatment system 100. But this would result in a waste of fluid. If the fluid contains harmful components, environmental pollution may also be caused.

Further, the water treatment system 100 further includes a timer 160, and the second controller 158 can control the opening time of the first valve 124, the second valve 126, the third valve 136 and the fourth valve 138 according to the time provided by the timer 160.

The timer 160 adjusts the time during which the first valve 124, the second valve 126, the third valve 136, and the fourth valve 138 are all closed, thereby adjusting the degree to which the ion concentration of the fluids in the first processing chamber 106 and the second processing chamber 108 approaches the set target ion concentration. It will be appreciated that the greater the difference in the set ion concentrations of the fluids in the first and

second processing chambers

106, 108, the longer it will take to approach the target ion concentration.

The timer 160 can adjust the degree of flushing of the membrane module structure 102 and outlet tube 120, waste 122 with fluid by adjusting the time that the first and

second valves

124, 126 are closed and the third and

fourth valves

136, 138 are open.

Further, the timer 160 is electrically connected to the pump body 144, and can control the opening and closing of the pump body 144, so that the pump body 144 can be stopped for a period of time and then opened again under the control of the timer; or may be turned on for a period of time and then turned off.

EXAMPLE seven

As shown in fig. 6, the present embodiment provides a water purifier (including the water treatment system 100 according to any of the embodiments described above) for providing purified water to a user, wherein the ion concentration of the purified water meets the ion concentration requirement required by the user.

The purifier includes following device: membrane module structure 102, two electrodes 112, voltage regulating device 114, water inlet pipe set 118, water outlet pipe 120, waste water pipe 122, raw water tank 128, waste water tank 130, water pump, flow valve 146, instant heating module (instant heating device 152) and water outlet connector.

The membrane module structure 102 includes: a first process chamber 106, a second process chamber 108, and a plurality of membrane module structures 102. The two electrodes 112 on either side of the membrane assembly structure 102 are of different polarity, typically the two electrodes 112 being an anode electrode 112 and a cathode electrode 112, respectively. When a voltage is applied to the two electrodes 112, an electric field is formed between each of the first processing chamber 106 and the second processing chamber 108 in the membrane module structure 102, and anions and cations inside the fluid are driven to move under the action of the electric field, pass through the ion exchange membrane 104, and enter the adjacent processing chambers, so that the ion concentrations of the fluids in the first processing chamber 106 and the second processing chamber 108 are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltage applied to the two electrodes 112, the more the ions move, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentration of the fluid in the first and

second processing chambers

106 and 108 can be adjusted by adjusting the voltage applied to the motor set 110, so that the ion concentration of the fluid in the processing chamber reaches the ion concentration value corresponding to the voltage applied to the motor set 110.

It will be appreciated that the ions are driven by the electric field, and the longer the electric field is maintained, the closer the ion concentration between the first and

second processing chambers

106 and 108 is to the set ion concentration target value.

Further, the fluid enters the membrane module structure and then flows into the first processing chamber 106 and the second processing chamber 108, respectively, and finally flows out of the first processing chamber 106 and the second processing chamber 108, respectively, because the fluid needs a period of time from flowing into the membrane module structure to flowing out of the membrane module, and in this period of time, the fluid changes the respective ion concentration under the action of the electric field of the membrane module. Thus, for the membrane module, a change in the ion concentration thereof can also be achieved for dynamically flowing fluids. It is clear that the smaller the instantaneous flow rate into the membrane module structure, the more pronounced the effect of the change in ion concentration.

The raw water tank 128 contains water to be purified. The water inlet pipe set 118 includes a water inlet main pipe 140 and a water inlet branch pipe 142. One end of the main water inlet pipe 140 is connected to the raw water tank 128, and the other end thereof is divided into two branch water inlet pipes 142 before being connected to the membrane module structure 102. One of the water inlet branches 142 is connected to the first treatment chamber 106 and the other is connected to the second treatment chamber 108. The water inlet main pipe 140 is provided with a water pump which can provide water pressure for a water channel of the water purifier. Flow valves 146 are provided in both inlet manifolds 142 to control the flow of water into the first and

second treatment chambers

106, 108.

The water passing through the first treatment chamber 106 flows from the outlet pipe 120 to the water usage fitting 154 and finally out of the water usage fitting 154 for use by a user. Water passing through second treatment chamber 108 is drained from waste 122 and flows into waste tank 130. The instant heating module is disposed on the water outlet pipe 120, and water flowing out of the first processing chamber 106 is heated by the instant heating module before being discharged from the water using connector 154. Certainly, the user can set the outlet water temperature of the instant heating module, and the instant heating module can adjust the heating power of the instant heating module according to the setting of the user, so that the temperature of the outlet water reaches the set temperature of the user.

The ion concentration of the purified water discharged from the first processing chamber 106 is greatly reduced by the electrode 112. But not absolutely pure water, will still have a certain ion concentration. The ion concentration can be measured by TDS (total dissolved solids). The higher the TDS, the higher the ion concentration, and the lower the TDS, the lower the ion concentration.

In the actual use to the pure water of user, the drinking water of discovering different TDS has certain influence to the taste, for example makes tea and more can taste tea fragrance with low TDS drinking water, and coffee is then better with the drinking water taste of high TDS. Therefore, the purifier needs to be able to reach the TDS value that the user needs to the TDS of the pure water that flows out fast to satisfy the user to the water demand when infusing the drink at present.

To achieve this, a knock out pipe 132, a water return pipe 134, a first valve 124, a second valve 126, a third valve 136, a fourth valve 138, a first controller 156, a second controller 158, and a timer are provided in the water purifier.

A first valve 124 is disposed on the outlet pipe 120, and when the first valve 124 is closed, the fluid in the outlet pipe 120 cannot be discharged from the outlet pipe 120. A second valve 126 is provided in waste 122, and when second valve 126 is closed, fluid in waste 122 cannot be discharged from waste 122.

One end of the water diversion pipe 132 is communicated with the water outlet pipe 120 connected between the first valve 124 and the membrane module structure 102, and the other end is communicated with the waste water pipe 122 connected between the second valve 126 and the membrane module structure 102; one end of the return pipe 134 is connected to the section of the waste water pipe 122 between the second valve 126 and the membrane module structure 102, and the other end is connected to the raw water tank 128, and the water distribution pipe 132 can guide the fluid in the water outlet pipe 120 into the waste water pipe 122 and the return pipe 134. A return line 134 may direct the flow from waste 122 to raw water tank 128. A third valve 136 is provided on the knock out pipe 132, and when the third valve 136 is opened, the fluid having a low ion concentration can flow into the waste pipe 122 through the knock out pipe 132, and when the third valve 136 is closed, all the fluid having a low ion concentration flows out from the outlet pipe 120. A fourth valve 138 is provided on the return pipe 134, and when the fourth valve 138 is opened, the fluid in the waste pipe 122 can flow from the return pipe 134 into the raw water tank 128, and when the fourth valve 138 is closed, the fluid in the waste pipe 122 cannot flow from the return pipe 134 into the raw water tank 128.

In order to adjust the TDS of the purified water flowing out of the water purifier, the water purifier is also provided with a first controller 156, a second controller 158 and a timer. The first controller 156 may regulate the voltage between the two electrodes 112 through the voltage regulating device 114, and the second controller 158 may control the opening and closing of the first valve 124, the second valve 126, the third valve 136, and the fourth valve 138. The timer may control the on or off time of the water pump in addition to providing time for the second controller 158.

The second controller 158 opens and closes the first valve 124, the second valve 126, the third valve 136, and the fourth valve 138 in two general ways:

The second way is to close the first valve 124 and the second valve 126 and open the third valve 136 and the fourth valve 138 simultaneously. At this time, the fluid with low ion concentration flowing out of water outlet pipe 120 enters waste water pipe 122 from water knockout pipe 132. Since the first valve 124 is closed, the fluid with a low ion concentration cannot flow into the waste water tank 130, and flows into the raw water tank 128 from the return pipe 134. Since the second valve 126 is also closed at this time, the fluid having a high ion concentration flowing out of the membrane module structure 102 also flows into the raw water tank 128 from the return pipe 134.

The second way is to pass the fluid flowing into membrane module structure 102 from return pipe 134 into raw water tank 128. In this manner, the unstable operation of the water treatment system 100, especially the set ion concentration of the fluid flowing out of the water outlet pipe 120, may not be consistent with the set target, and if the water discharged from the membrane module structure 102 directly flows out of the water outlet pipe 120 or into the waste water tank 130, the fluid with the required ion concentration may not be obtained. After a period of stable operation of the water treatment system 100, the second controller 158 is switched to the first control mode to ensure that the fluid exiting the membrane module reaches a predetermined ionic concentration.

In the use of the water purifier of this embodiment, the water purifier can set up different application scenarios for the user to the TDS of effluent is corresponded to the pertinence setting. The user can use water actual conditions according to own current needs, directly through the preset application scene of purifier, selects the pure water of different TDS.

Generally, the voltage regulator 114 regulates the voltage between the two electrodes to be in a range of 0V to 60V. In the process of adjusting high TDS to low TDS, a static pressurization method is adopted, and high voltage required by adjusting voltage to low TDS is firstly maintained t₁s, then starting the self-priming pump to feed water, closing the electromagnetic valves 1 and 3, opening the electromagnetic valves 2 and 4 to discharge the pure water and the waste water back to the original water tank, t₂s, closing the electromagnetic valves 2 and 4, opening the electromagnetic valves 1 and 3, discharging the pure water through the post-filter element and the instant heating module for drinking, and discharging the wastewater into the wastewater tank.

In a more specific embodiment, the following application scenarios are: the current initial state of the water purifier: the TDS of the water in the first process chamber 106 is 125 and the voltage between the two electrodes 112 is 5V. The TDS of purified water required by the user is 30.

Therefore, the water purifier does not start the water pump, and the voltage between the two electrodes 112 is adjusted to 40V ± 2V, and the state is maintained for 10 seconds, so that the TDS of the purified water in the first treatment chamber 106 can reach 30.

At this point, the voltage between the two electrodes 112 changes the TDS of the water between the first processing chamber 106 and the second processing chamber 108. The manner in which the inlet pipe continuously feeds untreated water into the first treatment chamber 106 and the water from the first treatment chamber 106 continuously flows out of the outlet pipe 120, which allows the TDS of the water in the first treatment chamber 106 to reach the target TDS value more quickly than if the water pump were turned on. After 10 seconds, the TDS of the water in the first processing chamber 106 has reached the user set target value of 30.

After 10 seconds, the timer 160 turns on the water pump which pumps the untreated water from the raw water tank 128 along the inlet tube set 118 to the first treatment chamber 106 and the second treatment chamber 108, at which time the flow valve 146 controls the inlet flow rate to be 350 ml. It is clear that the flow of incoming water is small and that the electrodes 112 are more apt to rapidly reduce the TDS of the purified water in the first treatment chamber 106.

After turning on the water pump, the first valve 124 and the second valve 126 are closed, and the third valve 136 and the fourth valve 138 are opened. At this time, the water flowing out of the water outlet pipe 120 and the waste water pipe 122 passes through the front half of the second valve 126 of the waste water pipe 122, enters the water return pipe 134, and finally flows into the raw water tank 128. This can guarantee under the initial condition, the not up to standard water of TDS that exists in outlet pipe 120 can not follow outlet pipe 120 and flow, avoids the user to drink not up to standard water, and especially when the user only needs a little cup, a small amount of not up to standard water also can cause obvious influence to user experience. Meanwhile, the water is returned to the original water tank 128, so that waste of water resources is avoided.

After the water pump is turned on for 10 seconds, the water in the initial state in the water outlet pipe 120 is completely flushed, at this time, the first valve 124 and the second valve 126 are opened, the third valve 136 and the fourth valve 138 are closed, and pure water according with the user setting flows out from the water using connector 154 along the water outlet pipe 120, so that the user can use the pure water directly.

And in the process of regulating the low TDS to the high TDS, a voltage cutoff method is adopted, and the voltage t is cut off₃Required low voltage when s back regulation voltage reaches high TDS starts the self priming pump and intakes, closes solenoid valve 1, 3, opens solenoid valve 2, 4, makes pure, waste water all arrange back former water tank, t₄s, closing the electromagnetic valves 2 and 4, opening the electromagnetic valves 1 and 3, discharging the pure water through the post-filter element and the instant heating module for drinking, and discharging the wastewater into the wastewater tank. The specific application scenarios are as follows:

the current initial state of the water purifier: the TDS of the water in the first process chamber 106 is 30 and the voltage between the two electrodes 112 is 5V. The TDS of the purified water required by the user is 125.

For this reason, the water purifier does not start the water pump at first, and adjusts the voltage between the two electrodes 112 to 0V, and maintains this state for 5 seconds. During this time, the TDS of the water between the first processing chamber 106 and the second processing chamber 108 gradually decreases by the voltage between the electrodes 112.

After 5 seconds, the TDS of the water in the first processing chamber 106 has reached or even exceeded the user set 125 target value.

At this time, the voltage between the two electrodes 112 was adjusted to 28V. + -.2V, and this state was maintained for 15 seconds. It is ensured that the first treatment chamber 106 is able to bring the TDS of the purified water to 125.

While the voltage is applied to the two electrodes 112, the timer 160 turns on the water pump which pumps the untreated water from the raw water tank 128 along the inlet line set 118 into the first treatment chamber 106 and the second treatment chamber 108, and the flow valve 146 controls the flow rate of the inlet water to be 500 ml. It is clear that with a high incoming water flow rate, the TDS reduction of the purified water in the first treatment chamber 106 will be relatively small.

After turning on the water pump, the first valve 124 and the second valve 126 are closed, and the third valve 136 and the fourth valve 138 are opened. At this time, the water flowing out of the water outlet pipe 120 and the waste water pipe 122 passes through the front half of the second valve 126 of the waste water pipe 122, enters the water return pipe 134, and finally flows into the raw water tank 128. This can guarantee under the initial condition, the not up to standard water of TDS who exists in outlet pipe 120 can not follow outlet pipe 120 and flow, avoids the user to drink not up to standard water, and especially when the user only needs a small cup, a small amount of not up to standard water also can cause obvious influence to user experience. Meanwhile, the water is returned to the original water tank 128, so that waste of water resources is avoided.

Above-mentioned four valve bodies can guarantee when switching TDS in the use, unsatisfied target TDS's waste water flows back former water tank, water economy resource. The change of the salt rejection rate effect of the electric purification membrane module structure is realized by adjusting the voltage applied to the membrane module structure, and the adjustable treatment of different TDS and temperatures is realized by matching the instant heating module, so that the requirements on drinking water under different scenes are met.

After the water pump is turned on for 15 seconds, the water in the initial state in the water outlet pipe 120 is completely flushed, at this time, the first valve 124 and the second valve 126 are opened, the third valve 136 and the fourth valve 138 are closed, and pure water according with the user setting flows out of the water using connector 154 along the water outlet pipe 120, so that the user can use the pure water directly.

For when setting the voltage of two electrodes 112 corresponding to the target TDS, just turn on the water pump, through a period of time, turn on the water pump again, can be faster make the TDS of the pure water in the first treatment chamber 106 reach the preset target. The waiting time of the user is saved, and meanwhile, the consumption of resources is also saved.

It should be noted that, for membrane module structures 102 with different structures, the voltage between the two electrodes 112 and the flow rate of the water inlet pipe, as well as the waiting time for starting the water pump may be different, and may be set according to the specific situation of the actual membrane module structure 102.

Furthermore, a front filter element 148 is arranged on the water inlet main pipe 140 of the water purifier, and a rear filter element 150 is arranged on the water outlet pipe 120. The front filter element 148 can filter out impurities such as silt contained in the untreated water flowing from the raw water tank 128, and the rear filter element 150 can eliminate the peculiar smell of the purified water.

Further, an instant heating module may be provided on the outlet pipe 120 between the rear filter element 150 and the water usage joint 154. The instant heating module can be used for directly heating the temperature of the purified water flowing out of the water outlet pipe 120, particularly when a user needs to brew drinks such as tea, coffee and the like, and the user does not need to heat the drinks.

In addition, the user is when using the purifier at every turn, the purifier all is in initial condition, its play water TDS is the play water TDS after the completion of system water last time, control voltage adjusting device's voltage is 5V, because under the effect of the inside power plant of membrane stack, anion can migrate to the anode, cation can migrate to the cathode, because anion, cation exchange membrane discharge in membrane stack inside in turn, form fresh water room and dense water room, anion, cation are held back in the dense water room, in case withdraw the electric field, because the existence of osmotic pressure, ion in the dense water room can permeate the entering fresh water room at once, until the ion concentration of two treatment chambers is the same, at this moment, then need apply an electric field force balanced with osmotic pressure, make the ion be in static device, in order to prevent that the last system water from accomplishing the ion in the membrane module structure and permeating each other.

Example eight

As shown in fig. 7, the present embodiment provides an ion concentration adjusting method, which is used in a water treatment system, where the water treatment system includes a membrane module structure and two electrodes disposed on two sides of the membrane module structure, the membrane module structure includes a concentrated water chamber and a dilute water chamber, where the concentrated water chamber and the dilute water chamber have different ion concentrations, and the ion concentration adjusting method includes:

step S102: acquiring a concentration adjusting instruction;

step S104: determining the target ion concentration of the liquid in the fresh water chamber according to the concentration regulation instruction;

step S106: determining a membrane stack voltage difference value according to the target ion concentration;

step S108: and controlling the difference of the voltages applied to the two electrodes to be the voltage difference of the membrane stack until the ion concentration in the fresh water chamber is the target ion concentration.

According to the utility model discloses in the embodiment of the ion concentration control method that the first aspect provided, water processing system includes the membrane module structure, includes concentrated hydroecium and fresh water room in the membrane module structure, and the ion concentration of fresh water room and concentrated hydroecium is different. Two electrodes are arranged on two sides of the membrane component structure. The ion concentration adjusting method of the reclaimed water treatment system is mainly used for adjusting the ion concentration of fluid in the fresh water chamber. Therefore, the water treatment system first acquires a concentration adjustment instruction. The concentration adjustment instruction includes a target ion concentration of the dilute chamber. And the water inlet treatment system determines a corresponding membrane stack voltage difference value according to the target ion concentration, and applies the membrane stack voltage difference value to the electrodes on two sides of the membrane component structure. The voltage is applied to the two electrodes, an electric field which covers each fresh water chamber and each concentrated water chamber is formed in the membrane component structure, negative and positive ions in the fluid can be driven to move under the action of the electric field, and the fluid passes through the ion exchange membrane and enters the adjacent treatment chambers, so that the ion concentrations of the fluid in the fresh water chamber and the concentrated water chamber are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltages applied to the two electrodes, the more violent the movement of the ions, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentrations of the fluids in the dilute and concentrate chambers are in equilibrium with the voltage applied between the two electrodes, the ion concentrations do not change. Therefore, the ion concentration in the fresh water chamber is adjusted by adjusting the voltage values applied to the two electrodes, so that the ion concentration of the fluid in the fresh water chamber reaches the ion concentration value corresponding to the applied voltage, the ion concentration in the fresh water chamber in the water treatment system can be correspondingly adjusted according to the setting of a user, and the water use requirements of the user for different ion concentrations are met.

Example nine

As shown in fig. 8, the present embodiment provides an ion concentration adjusting method, which is used in a water treatment system, where the water treatment system includes a membrane module structure and two electrodes disposed on two sides of the membrane module structure, the membrane module structure includes a concentrated water chamber and a dilute water chamber, and the ion concentration adjusting method includes:

step S202: acquiring a concentration adjusting instruction;

step S204: determining the target ion concentration of the liquid in the fresh water chamber according to the concentration regulation instruction;

step S206: determining a membrane stack voltage difference value according to the target ion concentration;

step S208: controlling the difference of the voltages applied to the two electrodes as the voltage difference of the membrane stack until the ion concentration in the fresh water chamber is the target ion concentration;

the method comprises the following steps: s210: and controlling the difference of the voltages applied to the two electrodes to be the holding voltage difference.

The ion concentration adjusting method of the water treatment system is mainly used for adjusting the ion concentration of fluid in the fresh water chamber. Therefore, the water treatment system first acquires a concentration adjustment instruction. The concentration adjustment instruction includes a target ion concentration of the dilute chamber. And the water inlet treatment system determines a corresponding membrane stack voltage difference value according to the target ion concentration, and applies the membrane stack voltage difference value to the electrodes on two sides of the membrane component structure. The voltage is applied to the two electrodes, an electric field which covers each fresh water chamber and each concentrated water chamber is formed in the membrane component structure, negative and positive ions in the fluid can be driven to move under the action of the electric field, and the fluid passes through the ion exchange membrane and enters the adjacent treatment chambers, so that the ion concentrations of the fluid in the fresh water chamber and the concentrated water chamber are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltages applied to the two electrodes, the more violent the movement of the ions, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentrations of the fluids in the dilute and concentrate chambers are in equilibrium with the voltage applied between the two electrodes, the ion concentrations do not change. Therefore, the ion concentration in the fresh water chamber is adjusted by adjusting the voltage values applied to the two electrodes, so that the ion concentration of the fluid in the fresh water chamber reaches the ion concentration value corresponding to the applied voltage, the ion concentration in the fresh water chamber in the water treatment system can be correspondingly adjusted according to the setting of a user, and the water use requirements of the user for different ion concentrations are met.

In the membrane module structure, in order to move the ions in the fluid with lower ion concentration in the dilute water chamber to the fluid with higher ion concentration in the concentrated water chamber, a voltage difference is required to be applied to the electrodes on both sides of the membrane module structure to drive the membrane module structure to move to the fluid with higher ion concentration. It will be appreciated that if the voltage difference is removed at this point, the ions in the fluid will necessarily tend to regain uniformity in concentration, eventually bringing the fluid concentrations back into agreement in both chambers. For driving ions to move, the ion concentration difference in the fresh water chamber and the concentrated water chamber is increased, the concentration difference of the two chambers is maintained, and only a pressure maintaining voltage difference value is needed to be applied to the two voltages. Therefore, when the ion concentration in the fresh water chamber reaches the target ion concentration set by the user, the voltage difference is maintained between the two electrodes to maintain the ion concentration in the fresh water chamber.

Wherein, the voltage holding difference can be 5 v.

Example ten

As shown in fig. 9, this embodiment provides an ion concentration adjusting method, which is used in a water treatment system, where the water treatment system includes a membrane module structure and two electrodes disposed on two sides of the membrane module structure, the membrane module structure includes a concentrated water chamber and a fresh water chamber with different ion concentrations, the water treatment system includes a water tank and a water inlet pipe communicated with the membrane module structure and the water tank, and the water inlet pipe is provided with a flow valve, and the ion concentration adjusting method includes:

step S302: acquiring a concentration adjusting instruction;

step S304: determining the target ion concentration of the liquid in the fresh water chamber according to the concentration regulation instruction;

step S306: determining a membrane stack voltage difference value according to the target ion concentration;

step S308: determining the target inflow rate of water fed into the fresh water chamber through the water inlet pipe according to the concentration adjusting instruction;

step S310: determining a first water inlet flow and a second water inlet flow which respectively flow into the fresh water chamber and the concentrated water chamber through a flow valve until the first water inlet flow is a target water inlet flow;

step S312: and controlling the difference of the voltages applied to the two electrodes to be the voltage difference of the membrane stack until the ion concentration in the fresh water chamber is the target ion concentration.

In this embodiment, the water treatment system first obtains a concentration adjustment instruction. The concentration adjustment instruction includes a target ion concentration of the dilute chamber. And the water inlet treatment system determines a corresponding membrane stack voltage difference value according to the target ion concentration, and applies the membrane stack voltage difference value to the electrodes on two sides of the membrane component structure. The voltage is applied to the two electrodes, an electric field which covers each fresh water chamber and each concentrated water chamber is formed in the membrane component structure, negative and positive ions in the fluid can be driven to move under the action of the electric field, and the fluid passes through the ion exchange membrane and enters the adjacent treatment chambers, so that the ion concentrations of the fluid in the fresh water chamber and the concentrated water chamber are different. Since the ions in the fluid are driven by the electric field to move, it can be understood that the larger the voltages applied to the two electrodes, the more violent the movement of the ions, and the larger the difference between the ion concentrations of the fluids in the adjacent processing chambers. When the ion concentrations of the fluids in the dilute and concentrate chambers are in equilibrium with the voltage applied between the two electrodes, the ion concentrations do not change. Therefore, the ion concentration in the fresh water chamber is adjusted by adjusting the voltage values applied to the two electrodes, so that the ion concentration of the fluid in the fresh water chamber reaches the ion concentration value corresponding to the applied voltage, the ion concentration in the fresh water chamber in the water treatment system can be correspondingly adjusted according to the setting of a user, and the water use requirements of the user for different ion concentrations are met.

The concentration regulation instruction obtained by the water treatment system also comprises the target inflow rate of the fresh water chamber. After the water treatment system obtains the target water inflow rate, the flow valve is controlled to adjust the first water inflow rate and the second water inflow rate flowing into the fresh water chamber and the concentrated water chamber, and finally the first water inflow rate is the target water inflow rate. The first water inlet flow is the water inlet flow flowing into the fresh water chamber, and the second water inlet flow is the water inlet flow flowing into the concentrated water chamber. It will be appreciated that the greater the target feed water flow, the closer the ion concentration of the fluid in the fresh water chamber will be to that of the feed water and, therefore, the effect on the stack voltage difference. The corresponding membrane stack voltage difference value can be determined according to different target ion concentrations and target inflow rates, so that the ion concentration in the fresh water chamber is the target ion concentration under the condition that the water enters the fresh water chamber from the water inlet pipe.

It should be noted that the water inlet pipe is connected with the membrane module structure, and the inlet water flows into the fresh water chamber and the concentrated water chamber respectively. Because the inlet water in the inlet pipe does not flow to the places outside the fresh water chamber and the concentrated water chamber, the first inlet water flow can be controlled to be the target inlet water flow no matter the flow valve controls the first inlet water flow or the second inlet water flow. Of course, the inlet pipe can be divided into two branch inlet pipes before entering the membrane module structure, the two branch inlet pipes are respectively connected with the fresh water chamber and the concentrated water chamber, and the inlet pipe connected with the fresh water chamber or the concentrated water chamber is provided with a flow valve, or the two branch inlet pipes are provided with flow valves, so that the control of the first inlet flow can be conveniently realized.

EXAMPLE eleven

As shown in fig. 10, this embodiment provides an ion concentration adjusting method, which is used in a water treatment system, where the water treatment system includes a membrane module structure and two electrodes disposed at two sides of the membrane module structure, the membrane module structure includes a concentrated water chamber and a fresh water chamber with different ion concentrations, the water treatment system includes a water tank, a water inlet pipe communicates the water tank and the membrane module structure and is connected to the fresh water chamber and the concentrated water chamber, and water in the water tank can enter the membrane module structure through the water inlet pipe. The flow valve is arranged on the water inlet pipe and can control the inflow rate.

The ion concentration adjusting method comprises the following steps:

step S402: acquiring a concentration adjusting instruction;

step S404: determining the target ion concentration of the liquid in the fresh water chamber according to the concentration regulation instruction;

step S406: determining a membrane stack voltage difference value according to the target ion concentration;

step S408: determining the target inflow rate of water fed into the fresh water chamber through the water inlet pipe according to the concentration adjusting instruction;

step S410: determining a first water inlet flow and a second water inlet flow which respectively flow into the fresh water chamber and the concentrated water chamber through a flow valve until the first water inlet flow is a target water inlet flow;

step S412: obtaining the concentration of fresh water ions in the fluid in the fresh water chamber;

step S414: determining the size relation between the concentration of the fresh water ions and the concentration of the target ions;

step S416: if the concentration of the fresh water ions is less than the target ion concentration, the concentration of the fresh water ions is increased according to a voltage disconnection rule until the concentration of the fresh water ions is the target ion concentration;

step S418: and if the concentration of the fresh water ions is greater than the target ion concentration, reducing the concentration of the fresh water ions according to a static pressurization rule until the concentration of the fresh water ions is the target ion concentration.

Through be equipped with the pump body on the inlet tube, the pump body can increase the water pressure of the interior fluid of inlet tube to guarantee the correct flow direction of fluid in the pipeline under the effect of water pressure. If the pump body is not started, the fluid in the pipeline of the water treatment system cannot flow and keeps static. In addition, the water treatment system also comprises a shunt pipe, and two ends of the shunt pipe are respectively communicated with the water outlet pipe and the waste water pipe, specifically, one end of the shunt pipe is connected to the position in front of the first valve in the water outlet pipe, namely the pipe section between the first valve and the membrane component structure, and the other end of the shunt pipe is connected to the position in front of the second valve in the waste water pipe, namely the pipe section between the second valve and the membrane component structure, so that the fluid in the water outlet pipe can be guided into the waste water pipe through the shunt pipe. And two ends of the water return pipe are respectively communicated with the waste water pipe and the water tank, so that the fluid in the fresh water chamber and the concentrated water chamber in the membrane component structure can be uniformly discharged back to the water tank. And when the third valve is closed, all the fluid with low ion concentration flows out from the water outlet pipe. In addition, a fourth valve is arranged on the water return pipe, when the fourth valve is opened, the fluid in the waste water pipe can flow into the water tank from the water return pipe, and when the fourth valve is closed, the fluid in the waste water pipe cannot flow into the water tank from the water return pipe.

It should be noted that, in order to reduce the pollution to the water source during the backflow, the water tank may be divided into a raw water tank and a waste water tank according to the function, the raw water tank is used to store the water that has not undergone the electrodialysis, and the fluid retained in the pipeline is circulated back to the raw water tank by the control valve body, and of course, after the electrodialysis is performed, the water with higher ion concentration in the concentrated water chamber may be discharged to the waste water tank for centralized treatment.

And the concentration adjusting instruction obtained by the water treatment system comprises target ion concentration and target inflow water flow. And then, the water treatment system acquires the fresh water ion concentration of the fluid in the fresh water chamber, compares the fresh water ion concentration with the target ion concentration, and determines the size relation between the fresh water ion concentration and the target ion concentration. It will be appreciated that there are currently possible situations in which: the ion concentration of the fresh water is smaller than the target ion concentration, which indicates that the ion concentration in the fresh water chamber is lower than the target ion concentration, the ion concentration of the fresh water should be increased by the water treatment system, and the corresponding treatment rule is a voltage disconnection rule. Or the ion concentration of the fresh water is greater than the target ion concentration, the ion concentration of the fresh water should be reduced by the water treatment system, and the corresponding treatment rule is a static pressurization rule. Finally, no matter how the magnitude relation of the ion concentration of the fresh water and the target ion concentration is, the water treatment system can ensure that the ion concentration of the outlet water reaches the target ion concentration.

Further, as shown in fig. 11, for step S416: and if the concentration of the fresh water ions is less than the target ion concentration, increasing the concentration of the fresh water ions according to a voltage disconnection rule until the concentration of the fresh water ions is the target ion concentration. The step of increasing the concentration of the fresh water ions according to the disconnection voltage rule comprises the following substeps: step S4162: determining third adjusting time and fourth adjusting time according to the magnitude relation between the concentration of the fresh water ions and the concentration of the target ions and the target water inlet flow; step S4164: controlling the pump body to be kept closed for a third adjusting time, and controlling the difference of the voltages applied to the two electrodes to be 0 at the third adjusting time; step S4166: controlling the difference of the voltages applied to the two electrodes as the difference of the membrane stack voltages; step S4168: controlling the pump body to start, determining the starting time of the pump body, closing the first valve and the second valve, and opening the third valve and the fourth valve; step S4170: and when the starting time exceeds a fourth adjusting time, opening the first valve and the second valve, and closing the third valve and the fourth valve.

When adjusting the ion concentration in the fresh water chamber according to the disconnection voltage rule, firstly, the ion concentration of the fresh water and the target ion concentration are judged, and specifically, when the ion concentration of the fresh water is smaller than the target ion concentration, the water treatment system determines third adjusting time and fourth adjusting time according to the size relation between the ion concentration of the fresh water and the target ion concentration and the target inflow water flow rate, so as to provide time support for a subsequent control pump body and different valve bodies.

When in control, the pump body is firstly closed, and the closing time is the third adjusting time. In the third adjustment time, in the pipeline and the membrane module structure of the water treatment system, because the pump body does not drive water to flow, fluid in the membrane module structure does not flow. At this time, by controlling the voltage difference value of the two electrodes to be 0, because the environment of the fluid between the fresh water chamber and the concentrated water chamber of the membrane module structure does not generate an electric field, and the concentration difference between the two cannot be maintained, ions in the fluid move through diffusion, so that the ion concentration in the fresh water chamber starts to rise back gradually, and when the ion concentration rises back to the target ion concentration, the water demand of a user can be met.

It can be understood that, under the condition that the third adjustment time is infinitely long, that is, under the limit state, the ion concentration in the fresh water chamber and the ion concentration in the concentrated water chamber are kept the same, at this time, the voltage between the two electrodes is controlled according to the voltage difference of the membrane stack, which is equivalent to reapplying the voltage, so that the adjustment of the ion concentration of the fresh water is realized under the action of the voltage difference of the membrane stack.

Generally, the larger the difference between the fresh water ion concentration and the target ion concentration is, the longer the third adjustment time should be set. And after the third adjusting time is finished, starting the pump body by the water treatment system, and determining the starting time of the pump body.

Before the starting of the pump body, the pump body is controlled to be closed for a third adjusting time, in the process, the voltage applied to the two electrodes is controlled to be zero, and after the first adjusting time is finished, the water treatment system starts the pump body, and meanwhile, timing is started to record the starting time of the pump body. When the pump body is started, the first valve and the second valve are controlled to be closed, the third valve and the fourth valve are controlled to be opened, and at the moment, fluid discharged from the water outlet pipe and the waste water pipe flows into the water tank from the water return pipe. This is because at this stage, although the ion concentration of the fresh water has reached the target ion concentration, there remains fluid in the pipeline that has an ion concentration that does not meet the target ion concentration, and this fluid, if discharged from the outlet pipe, will affect the outlet result. Therefore, the part of the fluid flows back to the water tank through the return pipe, and the part of the fluid can be fully utilized to avoid waste. When the starting time exceeds the fourth adjusting time, the first valve and the second valve are opened, the third valve and the fourth valve are closed, at the moment, the fluid in the fresh water chamber can normally flow out through the water outlet pipe for a user to use, and the fluid in the concentrated water chamber can be discharged from the waste water pipe, and particularly, the fluid can flow back to the waste water tank for uniform collection treatment. And the difference value between the fresh water ion concentration and the target inflow water flow can determine the third adjusting time. It can be understood that, before the ion concentration adjustment method is performed, the ion concentration of the fluid in the water outlet pipe is the same as or similar to the ion concentration of the fresh water, and when the ion concentration adjustment method is performed, the larger the difference between the ion concentration of the fresh water and the target ion concentration is, the more time is required for flushing, and thus the longer the fourth adjustment time is. Meanwhile, if the water inflow rate is large, the water outlet pipe can be quickly washed, and the water needs to be washed in a short time. The fourth adjustment time can be determined by the difference between the concentration of the fresh water ions and the concentration of the target ions and the target inflow water flow rate.

Therefore, when the concentration of the fresh water ions is less than the target ion concentration, the time for the concentration of the fresh water ions to reach the target ion concentration can be obviously shortened by adopting the voltage cut-off rule, and meanwhile, the fluid discharged from the water outlet pipe is ensured not to dope the fluid which does not meet the requirement of the ion concentration in the pipeline, and the requirement of the target ion concentration is met.

Further, as shown in fig. 12, the step of reducing the fresh water ion concentration according to the static pressurization rule in step S418 includes the following sub-steps: step S4182: adjusting the difference of the voltages of the two electrodes according to the difference of the voltages of the membrane stack; step S4184: determining first adjusting time and second adjusting time according to the magnitude relation between the concentration of the fresh water ions and the concentration of the target ions and the target water inlet flow; step S4186: controlling the pump body to keep closed for a first adjusting time; step S4188: controlling the pump body to start, determining the starting time of the pump body, closing the first valve and the second valve, and opening the third valve and the fourth valve; step S4190: and when the starting time exceeds the second adjusting time, the first valve and the second valve are opened, and the third valve and the fourth valve are closed.

When the ion concentration in the fresh water chamber is adjusted according to the static pressurization rule, the ion concentration of the fresh water and the target ion concentration are judged firstly, specifically, when the ion concentration of the fresh water is greater than the target ion concentration, the voltage difference value of the electrodes on two sides of the membrane component structure is adjusted to be the membrane stack voltage difference value by the water treatment system, and according to the size relation between the ion concentration of the fresh water and the target ion concentration and the target inflow water flow, the first adjusting time and the second adjusting time can be determined so as to provide time support for subsequently controlling the pump body and different valve bodies.

It is understood that the difference in membrane stack voltage is the voltage difference corresponding to the target ion concentration.

Further, when the control is carried out, the pump body is firstly closed for a period of time, and the closing time is the first adjusting time. During the first conditioning time, fluid does not flow in the piping and membrane module structure of the water treatment system. At the moment, under the action of a voltage difference value of the membrane stack, ions in the fluid can be driven to move, so that the concentration of the fresh water ions is gradually greater than the target ion concentration, and in the first adjusting time, because the pump body does not drive water to flow, the fluid in the membrane module structure does not flow, so that an electric field can be generated between electrodes on two sides of the membrane module structure, the ion concentration can be changed quickly, and the target ion concentration can be reached or approached quickly. It can be understood that the larger the difference between the fresh water ion concentration and the target ion concentration is, the longer the first adjustment time is on the basis that the voltage is kept constant. After the first adjusting time is over, the water treatment system starts the pump body, and meanwhile, timing is started to record the starting time of the pump body. When the pump body is started, the first valve and the second valve are controlled to be closed, the third valve and the fourth valve are controlled to be opened, and at the moment, fluid discharged from the water outlet pipe and the waste water pipe flows into the water tank from the water return pipe. This is because at this stage, although the ion concentration of the fresh water has reached the target ion concentration, there remains fluid in the pipeline that has an ion concentration that does not meet the target ion concentration, and this fluid, if discharged from the outlet pipe, will affect the outlet result. Therefore, the part of the fluid flows back to the water tank through the return pipe, and the part of the fluid can be fully utilized to avoid waste. When the starting time exceeds the second adjusting time, the first valve and the second valve are opened, the third valve and the fourth valve are closed, at the moment, the fluid in the fresh water chamber can normally flow out through the water outlet pipe for a user to use, and the fluid in the concentrated water chamber can be discharged from the waste water pipe, and particularly, the fluid can flow back to the waste water tank for uniform collection treatment. And determining the second adjusting time according to the difference value of the fresh water ion concentration and the target inflow water flow.

It is understood that, before the ion concentration adjusting method is performed, the ion concentration of the fluid in the water outlet pipe is the same as or similar to the ion concentration of the fresh water, and when the method is performed, the larger the difference between the ion concentration of the fresh water and the ion concentration of the target is, the more time is required for flushing, and therefore, the longer the second adjusting time is set. Meanwhile, if the inflow rate is large, the water outlet pipe can be quickly flushed, and the flushing needs to be carried out in a short time.

It is emphasized that, when the concentration of the fresh water ions is greater than the target ion concentration, the static pressurization rule is adopted, so that the time for the concentration of the fresh water ions to reach the target ion concentration can be obviously shortened, and meanwhile, the fluid discharged from the water outlet pipe is ensured not to dope the fluid which does not meet the requirement of the ion concentration in the pipeline and meets the requirement of the target ion concentration.

Example twelve

As shown in fig. 13, this embodiment further provides an ion concentration adjusting method, which is used in a water treatment system, where the water treatment system includes a membrane module structure and two electrodes disposed on two sides of the membrane module structure, the membrane module structure includes a concentrated water chamber and a fresh water chamber with different ion concentrations, and a water outlet pipe of the fresh water chamber is provided with a heating device, so as to heat fluid discharged from the water outlet pipe. The ion concentration adjusting method comprises the following steps:

step S502: acquiring a concentration adjusting instruction;

step S504: determining the target ion concentration of the liquid in the fresh water chamber according to the concentration regulation instruction;

step S506: acquiring the outlet water temperature of the outlet pipe;

step S508: determining a target temperature value of the heating device according to the concentration adjusting instruction;

step S510: controlling a heating device to heat the fluid in the water outlet pipe until the water outlet temperature is a target temperature value;

step S512: determining a membrane stack voltage difference value according to the target ion concentration;

step S514: and controlling the difference of the voltages applied to the two electrodes to be the voltage difference of the membrane stack until the ion concentration in the fresh water chamber is the target ion concentration.

The water outlet pipe is provided with a heating device which can heat the fluid discharged by the water outlet pipe. Before the membrane stack voltage difference value is determined, a target temperature value is obtained according to a concentration adjusting instruction. The fluid in the water outlet pipe can be heated by controlling the heating device, specifically, the fluid is heated to a target temperature value, so that the water outlet temperature reaches the target temperature value.

It can be understood that the heating device can adjust the heating power according to the difference value between the target temperature value and the current effluent temperature, so that the effluent temperature can reach the target temperature value quickly.

The target temperature value corresponds to the target ion concentration and the target inflow water flow, and different application scenes can be provided for the water treatment system conveniently.

For a water treatment system, when a user uses the water treatment system, the user usually sets a target ion concentration and a target inflow water flow rate according to different purposes of use, and the user usually corresponds to different target temperatures.

Like common purifier, can set for different use scenes to the user, like making coffee, making tea, making milk powder etc. can set for suitable target ion concentration, target inflow according to respective water characteristics to and the target temperature value that corresponds, the user can directly select out the water mode like this, and convenient follow purifier water intaking has saved and has carried out independent setting at every turn.

EXAMPLE thirteen

The utility model also provides a computer readable storage medium, computer program can realize ion concentration control method when being executed by the treater, through obtaining concentration control instruction, confirms membrane stack voltage difference and first inflow flow to the ion concentration that makes the play water is target ion concentration.

Example fourteen

As shown in fig. 14, the present embodiment provides a water treatment system 100, which includes a processor 170 and a memory 180, wherein the memory 180 stores a computer program, and the computer program can implement the steps of the ion concentration adjusting method provided in any one of the above embodiments when executed by the processor 170.

By using the water treatment system, the target ion concentration of the discharged water can be adjusted on line according to the requirement. When switching target ion concentration, user's latency is short, can wash the deposit water in the geminate transistor voluntarily moreover to guarantee that the water that the user obtained all accords with the requirement.

In the present application, the terms "first", "second", "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 meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or unit indicated must have a specific direction, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present specification, 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 water treatment system, comprising:

the membrane component structure comprises a plurality of ion exchange membranes, at least one first treatment chamber and at least one second treatment chamber are formed between any two adjacent ion exchange membranes, and the ion concentration of the fluid in the adjacent first treatment chamber and the adjacent second treatment chamber is different;

the two electrodes are respectively arranged on two sides of the membrane component structure;

a voltage adjustment device electrically connected to the two electrodes, the voltage adjustment device capable of adjusting a voltage between the two electrodes to change an ion concentration of a fluid within the first and second processing chambers.

2. The water treatment system of claim 1, further comprising: a piping component comprising:

a water inlet pipe group, one end of which is respectively communicated with each first treatment chamber and each second treatment chamber;

one end of the water outlet pipe is communicated with one of the first treatment chamber and the second treatment chamber, which has lower ion concentration, and the other end of the water outlet pipe is connected with a water using connector;

a waste pipe having one end communicating with one of the first and second treatment chambers in which the fluid has a higher ion concentration,

wherein, be equipped with first valve on the outlet pipe, be equipped with the second valve on the waste pipe.

3. The water treatment system of claim 2, further comprising:

the raw water tank is communicated with the other end of the water inlet pipe group;

the waste water tank is communicated with the other end of the waste water pipe;

wherein the fluid flows from the raw water tank into the first treatment chamber and the second treatment chamber through the water inlet pipe group, and the fluid with higher ion concentration in the first treatment chamber and the second treatment chamber flows into the waste water tank through the waste water pipe.

4. The water treatment system of claim 3, further comprising:

one end of the water diversion pipe is communicated with the water outlet pipe between the first valve and the membrane component structure, and the other end of the water diversion pipe is communicated with the waste water pipe between the second valve and the membrane component structure;

one end of the water return pipe is communicated to a pipe section between the second valve and the membrane component structure in the waste water pipe, the other end of the water return pipe is communicated with the raw water tank,

and a third valve is arranged on the water dividing pipe, and a fourth valve is arranged on the water returning pipe.

5. The water treatment system of claim 4, further comprising:

a first controller electrically connected to the voltage regulating device, the first controller being capable of controlling the voltage regulating device to regulate the voltage between the two electrodes.

6. The water treatment system of claim 5, further comprising:

a second controller electrically connected to the first valve, the second valve, the third valve, and the fourth valve, respectively,

wherein the second controller is configured to control the first valve and the second valve to close, the third valve and the fourth valve to open, so that the fluid flowing out of the membrane module structure flows back to the raw water tank, the second controller is further configured to control the first valve and the second valve to open, the third valve and the fourth valve to close, so that the fluid in the lower ion concentration one of the first processing chamber and the second processing chamber is discharged to the outside, and the fluid in the higher ion concentration one of the first processing chamber and the second processing chamber flows to the waste water tank.

7. The water treatment system of claim 6, further comprising:

a timer electrically connected to the second controller, the timer configured to determine an opening time of the first valve, the second valve, the third valve, and the fourth valve.

8. The water treatment system of any one of claims 3 to 7, wherein the water intake stack further comprises:

one end of the water inlet main pipe is communicated with the raw water tank;

and one end of each water inlet branch pipe is connected with the water inlet main pipe, and the other end of each water inlet branch pipe is connected with each first treatment chamber and each second treatment chamber respectively.

9. The water treatment system of claim 8, further comprising:

and the pump body is arranged on the water inlet main pipe and can drive the fluid to flow to the membrane component structure.

10. The water treatment system of claim 9, comprising:

and each flow valve is arranged on one water inlet branch pipe, each first treatment chamber and each water inlet pipe of the second treatment chamber.

11. The water treatment system of claim 10, further comprising:

the preposed filter element is arranged on the water inlet main pipe and is positioned between the pump body and the membrane component structure;

the post-positioned filter element is arranged on the water outlet pipe, and the fluid flowing out of the first valve passes through the post-positioned filter element and is discharged outwards by the water joint.

12. The water treatment system of any one of claims 2 to 7, further comprising:

and the heating device is arranged on the water outlet pipe and is close to the water joint.